CN116338257A - DCR test auxiliary connection tool for battery pack - Google Patents
DCR test auxiliary connection tool for battery pack Download PDFInfo
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- CN116338257A CN116338257A CN202310218976.5A CN202310218976A CN116338257A CN 116338257 A CN116338257 A CN 116338257A CN 202310218976 A CN202310218976 A CN 202310218976A CN 116338257 A CN116338257 A CN 116338257A
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- 238000012360 testing method Methods 0.000 title claims abstract description 41
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 67
- 229910052802 copper Inorganic materials 0.000 claims abstract description 67
- 239000010949 copper Substances 0.000 claims abstract description 67
- 230000001681 protective effect Effects 0.000 claims abstract description 13
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000012956 testing procedure Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/3644—Constructional arrangements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The auxiliary connection tool for the DCR test of the battery pack comprises a tool main body, an anode connection copper block, a cathode connection assembly, a female end connection assembly, an anode cable and a cathode cable; the front surface of the tool body is provided with a first groove and a second groove which are parallel to each other, the front surface of the tool body is provided with a first through hole which penetrates through the tool body and is communicated with the first groove, the front surface of the tool body is provided with a containing cavity which is communicated with the second groove, and the back surface of the tool body is provided with a second through hole; the front surface of the tool main body is provided with a protective cover, and the protective cover is provided with a round hole; the positive cable and the negative cable are embedded into the second groove and the first groove; the positive electrode connecting copper block is arranged in the accommodating cavity, one end of the positive electrode connecting copper block is connected with the end part of the positive electrode cable, and the other end of the positive electrode connecting copper block is connected with the female end connecting component extending into the accommodating cavity along the second through hole; the negative electrode connecting component is arranged in the first through hole, and one end of the negative electrode connecting component is connected with the end part of the negative electrode cable. The invention simplifies the testing procedure, shortens the testing time and improves the production efficiency.
Description
Technical Field
The invention relates to the technical field of battery pack testing, in particular to an auxiliary connection tool for a battery pack DCR test.
Background
In order to ensure that the battery pack can reach a given effect in the use process, performance verification tests need to be carried out on the battery pack before delivery. When testing a battery pack, a plug connector is usually used for being quickly connected with a copper bar in a high-voltage wiring box of the battery pack, and for the battery pack with higher current level, the high-voltage wiring is usually designed into a wiring mode of an OT wiring terminal; after the test is completed, the end cover is disassembled, the plug connector is taken out, and the end cover is reinstalled again; because there are more little bolts on the battery package high-voltage cable box end cover, need dismouting end cover 2 times repeatedly just can accomplish test work, the process is loaded down with trivial details, has prolonged test time, leads to test efficiency low, causes whole mass production inefficiency, seriously delays production beat.
Disclosure of Invention
In order to solve the technical problems in the prior art, it is necessary to provide an auxiliary connection tool for DCR test of a battery pack.
The auxiliary connection tool for the DCR test of the battery pack comprises a tool main body, an anode connection copper block, a cathode connection assembly, a female end connection assembly, an anode cable and a cathode cable;
the front surface of the tool main body is provided with a first groove and a second groove which are parallel to each other, the front surface of the tool main body is provided with a first through hole which penetrates through the tool main body and is communicated with the first groove, the front surface of the tool main body is provided with a containing cavity which is communicated with the second groove, and the back surface of the tool main body is provided with a second through hole which is communicated with the mounting cavity; the front surface of the tool main body is provided with a protective cover, and a round hole corresponding to the first through hole is formed in the protective cover;
the positive cable and the negative cable are respectively embedded in the second groove and the first groove correspondingly;
the positive electrode connecting copper block is arranged in the accommodating cavity, one end of the positive electrode connecting copper block is connected with the end part of the positive electrode cable, and the other end of the positive electrode connecting copper block is connected with the female end connecting component which extends into the accommodating cavity through the second through hole;
the negative electrode connecting assembly is arranged in the first through hole, and one end of the negative electrode connecting assembly is connected with the end part of the negative electrode cable.
Preferably, the negative electrode connecting component comprises a conductive copper pipe and a fastening connecting column; the guide copper pipe is arranged in the first through hole, one end of the fastening connecting column is inserted into the conductive copper pipe, and the other end of the fastening connecting column is connected with the end of the negative cable.
Preferably, the outer wall of the side, close to the negative cable, of the conductive copper pipe is sleeved with a spring, and the spring is in contact with the inner wall of the first through hole.
Preferably, the outer wall of the side, far away from the negative cable, of the conductive copper pipe is provided with a limiting hole, the tool main body is provided with a fixing hole corresponding to the limiting hole, and after the screw is inserted along the fixing hole, the displacement of the conductive copper pipe in the axial direction can be limited by the screw.
Preferably, the female end connecting component comprises a conductive clamping mechanism and a fixed column; the non-clamping end of the conductive clamping mechanism extends from the second through hole to the accommodating cavity to be in contact with the positive electrode connection copper block, and the fixing column fixes the conductive clamping mechanism and the positive electrode connection copper block.
Preferably, the conductive clamping mechanism comprises a female end conductive clamp and an auxiliary clamping piece; the non-clamping end of the female end conductive clamp extends into the accommodating cavity to be connected with the positive electrode connecting copper block, and the auxiliary clamping piece is arranged at the clamping end of the female end conductive clamp.
Preferably, the two sides of the outer part of the female end conductive clamp are provided with female end protection plates.
Preferably, one end of the fastening connection column far away from the negative cable is provided with a threaded connector, and the diameter of the threaded connector is smaller than the inner diameter of the lead copper pipe and larger than the diameter of the fastening connection column; the outer wall of the fastening connection column is in threaded connection with the inner wall of the conductive copper pipe, which is close to one end of the negative cable.
Preferably, the torque wrench is further used for screwing and fixing the connecting column.
Preferably, the protection cover is provided with a limit clamping groove corresponding to the first groove and the second groove.
According to the technical scheme, the auxiliary connection tool for the DCR test of the battery pack is provided with the second groove and the first groove for installing the positive cable and the negative cable on the tool main body, so that the installation stability of the positive cable and the negative cable can be improved, and the phenomenon of loose end connection caused by left and right shaking of the positive cable and the negative cable near the end during the test is prevented; the protective cover is arranged on the front surface of the tool main body, and the protective cover can be used for preventing the connecting ends of the second groove and the first groove from being exposed, so that the terminals of the positive electrode cable and the negative electrode cable are protected, and meanwhile, the protective cover can be used for limiting the positive electrode cable and the negative electrode cable to prevent the positive electrode cable and the negative electrode cable from falling out of the second groove and the first groove; during testing, only the end cover of the battery pack high-voltage junction box is required to be disassembled, then the tooling is inserted into the battery pack high-voltage junction box, the female end connecting component is connected with the copper bar in the battery pack high-voltage junction box, the positive cable is connected with the negative electrode of the battery pack high-voltage junction box, the negative electrode connecting component faces the positive electrode of the battery pack high-voltage junction box, the negative cable can be connected with the positive electrode of the battery pack high-voltage junction box by screwing the negative electrode connecting component, and then the battery pack can be tested; in the process, the test work can be completed only by disassembling and assembling the end cover for 1 time, so that for mass test, the test procedure is simplified, the test time is shortened, and the overall mass production efficiency is greatly improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic view of another angle of FIG. 1 according to the present invention.
Fig. 3 is a schematic structural diagram of another embodiment of the present invention.
Fig. 4 is a schematic view of the structure of the present invention when connected to a high-voltage junction box of a battery pack.
Fig. 5 is a schematic cross-sectional view of fig. 4 in accordance with the present invention.
Fig. 6 is a schematic structural diagram of the tool body of the present invention.
FIG. 7 is a schematic view of another angle of FIG. 6 according to the present invention.
FIG. 8 is a schematic diagram of a protective cover according to the present invention.
Fig. 9 is a schematic structural view of the conductive clamping mechanism of the present invention.
Fig. 10 is a schematic cross-sectional view of the structure of fig. 1 of the present invention.
In the figure: the tool comprises a tool main body 01, a first groove 11, a second groove 12, a first through hole 13, a containing cavity 14, a second through hole 15, a fixing hole 16, a positive electrode connecting copper block 02, a negative electrode connecting component 03, a conductive copper pipe 31, a limiting hole 311, a fastening connecting column 32, a threaded connector 321, a spring 33, a female end connecting component 04, a conductive clamping mechanism 41, a female end conductive clamp 411, an auxiliary clamping piece 412, a female end protection plate 413, a fixing column 42, a positive electrode cable 05, a negative electrode cable 06, a protection cover 07, a round hole 71, a limiting clamping groove 72, a torque wrench 08 and a battery pack high-voltage junction box 09.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "upper," "middle," "outer," "inner," "lower," and the like are used for indicating orientations or positional relationships, merely to facilitate the description of the present invention and simplify the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and are not to be construed as limiting the present invention.
Referring to fig. 1 to 10, the invention provides an auxiliary connection tool for DCR test of a battery pack, which comprises a tool main body 01, a positive electrode connection copper block 02, a negative electrode connection assembly 03, a female end connection assembly 04, a positive electrode cable 05 and a negative electrode cable 06; the front surface of the tool main body 01 is provided with a first groove 11 and a second groove 12 which are parallel to each other, the lower end in the first groove 11 is provided with a semicircular groove, the front surface of the tool main body 01 is provided with a first through hole 13 which penetrates through the tool main body 01 and is communicated with the first groove 11, the front surface of the tool main body 01 is provided with a containing cavity 14 which is communicated with the second groove 12, and the back surface of the tool main body 01 is provided with a second through hole 15 which is communicated with the mounting cavity; the front of the tool main body 01 is provided with a protective cover 07, and a round hole 71 corresponding to the first through hole 13 is formed in the protective cover 07. The positive cable 05 and the negative cable 06 are respectively embedded in the second groove 12 and the first groove 11 correspondingly; the installation stability of the positive cable 05 and the negative cable 06 can be improved, and the phenomenon that the connection of the ends is loosened caused by left and right shaking of the positive cable 05 and the negative cable 06 near the ends during testing is prevented; through installing visor 07 in the front of frock main part 01, utilize visor 07 can prevent that the link of second recess 12 and first recess 11 from exposing outside to form the protection to the wiring end of anodal cable 05, negative pole cable 06, simultaneously, accessible visor 07 again is restricted anodal cable 05, negative pole cable 06, prevents that anodal cable 05, negative pole cable 06 from deviating from in second recess 12 and the first recess 11. The positive electrode connection copper block 02 is arranged in the accommodating cavity 14, one end of the positive electrode connection copper block 02 is connected with the end part of the positive electrode cable 05, and the other end of the positive electrode connection copper block 02 is connected with the female end connection assembly 04 which extends into the accommodating cavity 14 through the second through hole 15. The negative electrode connection member 03 is disposed in the first through hole 13, and one end of the negative electrode connection member 03 is connected to the end of the negative electrode cable 06. During testing, only the end cover of the battery pack high-voltage wiring box 09 is required to be disassembled, then the tooling is inserted into the battery pack high-voltage wiring box 09, the female end connecting component 04 is connected with the copper bar in the battery pack high-voltage wiring box 09, the positive electrode cable 05 is connected with the negative electrode of the battery pack high-voltage wiring box 09, the negative electrode connecting component 03 is opposite to the positive electrode of the battery pack high-voltage wiring box 09, and the negative electrode cable 06 can be connected with the positive electrode of the battery pack high-voltage wiring box 09 by screwing the negative electrode connecting component 03, so that the battery pack can be tested; in the process, the test work can be completed only by disassembling and assembling the end cover for 1 time, so that for mass test, the test procedure is simplified, the test time is shortened, and the overall mass production efficiency is greatly improved.
In one embodiment, the negative electrode connection assembly 03 includes a contact tube 31, a fastening connection post 32; the guide copper pipe is disposed in the first through hole 13, one end of the fastening connection post 32 is inserted into the inside of the conductive copper pipe 31, and the other end of the fastening connection post 32 connects the end of the negative cable 06 with the end of the conductive copper pipe 31. Wherein, one end of the fastening connection post 32 far away from the negative cable 06 is provided with a threaded connector 321, and the diameter of the threaded connector 321 is smaller than the inner diameter of the lead copper pipe and larger than the diameter of the fastening connection post 32; the screw connector 321 can be ensured not to contact with the inner wall of the conductive copper tube 31, and the screw connection mode formed by the fastening connection column 32 and the conductive copper tube 31 can be utilized, so that the fastening connection column 32 approaches to the positive electrode connection end of the battery pack high-voltage junction box 09 in a progressive screwing mode, thereby forming a guiding effect on the fastening connection column 32, and the screw connector 321 can be accurately aligned with the positive electrode connection end of the battery pack high-voltage junction box 09. The outer wall of the fastening connection column 32 is in threaded connection with the inner wall of the conductive copper tube 31, which is close to one end of the negative cable 06. The end of the fastening connection post 32 far away from the conductive copper pipe 31 is provided with a nut, when the fastening connection post 32 is screwed to the side close to the conductive copper pipe 31, the negative electrode cable 06 and the conductive copper pipe 31 can be connected together, and meanwhile, the threaded connector 321 is caused to be connected with the positive electrode connection end in the battery pack high-voltage cable box 09.
In one embodiment, the outer wall of the conductive copper tube 31 near the side of the negative cable 06 is sleeved with a spring 33, and the spring 33 is abutted against the inner wall of the first through hole 13. When screwing the fastening connection post 32, the spring 33 can buffer the screwing force of the fastening connection post 32, after screwing the fastening connection post 32 to the limit position, the reverse acting force formed after limiting compression of the spring 33 can prevent the fastening connection post 32 from damaging the threads on the threaded connector 321 and the fastening connection post 32 due to excessive screwing, and once the threads are damaged, the phenomenon that the connection between the negative electrode cable 06 and the conductive copper tube 31 and the battery pack high-voltage junction box 09 is loosened can occur, so that the connection safety is greatly influenced.
In one embodiment, the outer wall of the side, far away from the negative cable 06, of the conductive copper tube 31 is provided with a limiting hole 311, the tool main body 01 is provided with a fixing hole 16 corresponding to the limiting hole 311, after a screw is inserted along the fixing hole 16, the displacement of the conductive copper tube 31 in the axial direction can be limited by the screw, and then the circumferential rotation displacement of the conductive copper tube 31 can be limited.
In one embodiment, the female end connection assembly 04 includes a conductive clamping mechanism 41, a fixed post 42; the non-clamping end of the conductive clamping mechanism 41 extends from the second through hole 15 into the accommodating cavity 14 to be in contact with the positive electrode connection copper block 02, and the fixing column 42 fixes the conductive clamping mechanism 41 and the positive electrode connection copper block 02.
Specifically, the conductive clamping mechanism 41 includes a female conductive clamp 411 and an auxiliary clamp 412; the non-clamping end of the female terminal conductive clamp 411 extends into the accommodating cavity 14 to be connected with the positive electrode connection copper block 02, and the auxiliary clamping piece 412 is arranged at the clamping end of the female terminal conductive clamp 411. Wherein, the auxiliary clamping member 412 adopts a U-shaped structure, and the U-shaped end of the auxiliary clamping member 412 penetrates through the female end conductive clamp 411, so that the inner walls at two sides of the auxiliary clamping member 412 are attached to the outer walls at two sides of the female end conductive clamp 411. When the female terminal conductive clamp 411 clamps the copper bar, the clamping end of the female terminal conductive clamp 411 can be opened to enable the copper bar to be inserted into the female terminal conductive clamp 411, and the auxiliary clamping piece 412 can apply opposite acting force to the female terminal conductive clamp 411 to enable the female terminal conductive clamp 411 to be close to the middle, so that stable connection can be formed to the copper bar.
Specifically, female end protection plates 413 are disposed on two sides of the outer portion of the female end conductive clip 411, so that safety of the female end conductive clip 411 during connection can be protected, and other parts can be prevented from touching the conductive clip.
In one embodiment, the protection cover 07 is provided with a limit slot 72 corresponding to the first groove 11 and the second groove 12, and the limit slot 72 has a semicircular arc structure. After the protection cover 07 is buckled on the tool main body 01, the first groove 11, the second groove 12 and the limiting clamping groove 72 can correspondingly clamp the negative cable 06 and the positive cable 05, so that the negative cable 06 and the positive cable 05 can be effectively prevented from laterally moving in the testing process.
In one embodiment, to facilitate screwing the fastening connection post 32, a round hole 71 capable of being inserted into the protection cover 07 plate is designed in a matching manner, and a torque wrench 08 screwing the fastening connection post 32 is designed; wherein the end of the torque wrench 08 is adapted to the end of the fastening connection post 32.
When the battery pack high-voltage wiring box 09 is used, firstly, the end cover of the battery pack high-voltage wiring box 09 is disassembled, the female end conductive clamp 411 is spliced with a copper bar in the battery pack high-voltage wiring box 09, then the fastening connection column 32 is screwed through the torque wrench 08, so that the negative cable 06 and the conductive copper tube 31 are fastened and connected together by the fastening connection column 32, and further, the fastening connection column 32 is screwed, so that the threaded connector 321 of the fastening connection column 32 is in threaded connection with the positive electrode connection end of the battery pack high-voltage wiring box 09, and a battery pack can be tested; after the test is finished, screwing the fastening connection column 32 through the torque wrench 08 again to enable the fastening connection column 32 to be separated from contact with the positive electrode connection end of the battery pack high-voltage cable box 09, then pulling out the female end conductive clamp 411 from the copper bar, and finally reinstalling the end cover; in the process, the test work can be completed only by disassembling and assembling the end cover for 1 time, so that for mass test, the test procedure is simplified, the test time is shortened, and the overall mass production efficiency is greatly improved.
The foregoing disclosure is illustrative of the preferred embodiments of the present invention, and is not to be construed as limiting the scope of the invention, as it is understood by those skilled in the art that all or part of the above-described embodiments may be practiced with equivalents thereof, which fall within the scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a battery package DCR test auxiliary connection frock which characterized in that: the fixture comprises a fixture main body, an anode connecting copper block, a cathode connecting component, a female end connecting component, an anode cable and a cathode cable;
the front surface of the tool main body is provided with a first groove and a second groove which are parallel to each other, the front surface of the tool main body is provided with a first through hole which penetrates through the tool main body and is communicated with the first groove, the front surface of the tool main body is provided with a containing cavity which is communicated with the second groove, and the back surface of the tool main body is provided with a second through hole which is communicated with the mounting cavity; the front surface of the tool main body is provided with a protective cover, and a round hole corresponding to the first through hole is formed in the protective cover;
the positive cable and the negative cable are respectively embedded in the second groove and the first groove correspondingly;
the positive electrode connecting copper block is arranged in the accommodating cavity, one end of the positive electrode connecting copper block is connected with the end part of the positive electrode cable, and the other end of the positive electrode connecting copper block is connected with the female end connecting component which extends into the accommodating cavity through the second through hole;
the negative electrode connecting assembly is arranged in the first through hole, and one end of the negative electrode connecting assembly is connected with the end part of the negative electrode cable.
2. The battery pack DCR test auxiliary connection tool of claim 1, wherein: the negative electrode connecting component comprises a conductive copper pipe and a fastening connecting column; the guide copper pipe is arranged in the first through hole, one end of the fastening connecting column is inserted into the conductive copper pipe, and the other end of the fastening connecting column is connected with the end of the negative cable.
3. The battery pack DCR test auxiliary connection tool of claim 2, wherein: and a spring is sleeved on the outer wall of one side, close to the negative cable, of the conductive copper pipe and is in contact with the inner wall of the first through hole.
4. The battery pack DCR test auxiliary connection tool of claim 3, wherein: the outer wall of one side, far away from the negative cable, of the conductive copper pipe is provided with a limiting hole, the tool main body is provided with a fixing hole corresponding to the limiting hole, and after the screw is inserted along the fixing hole, the displacement of the conductive copper pipe in the axial direction can be limited by the screw.
5. The battery pack DCR test auxiliary connection kit according to any one of claims 1 to 4, wherein: the female end connecting assembly comprises a conductive clamping mechanism and a fixed column; the non-clamping end of the conductive clamping mechanism extends from the second through hole to the accommodating cavity to be in contact with the positive electrode connection copper block, and the fixing column fixes the conductive clamping mechanism and the positive electrode connection copper block.
6. The battery pack DCR test auxiliary connection tool of claim 5, wherein: the conductive clamping mechanism comprises a female end conductive clamp and an auxiliary clamping piece; the non-clamping end of the female end conductive clamp extends into the accommodating cavity to be connected with the positive electrode connecting copper block, and the auxiliary clamping piece is arranged at the clamping end of the female end conductive clamp.
7. The battery pack DCR test auxiliary connection tool of claim 6, wherein: and female end protection plates are arranged on two sides of the outer part of the female end conductive clamp.
8. The battery pack DCR test auxiliary connection tool of claim 2, wherein: one end of the fastening connecting column, which is far away from the negative cable, is provided with a threaded connector, and the diameter of the threaded connector is smaller than the inner diameter of the lead copper pipe and larger than the diameter of the fastening connecting column; the outer wall of the fastening connection column is in threaded connection with the inner wall of the conductive copper pipe, which is close to one end of the negative cable.
9. The battery pack DCR test auxiliary connection tool of claim 1, wherein: and the protective cover is provided with a limit clamping groove corresponding to the first groove and the second groove.
10. The battery pack DCR test auxiliary connection tool of claim 2, wherein: the torque wrench is used for screwing and fixing the connecting column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310218976.5A CN116338257B (en) | 2023-03-08 | 2023-03-08 | DCR test auxiliary connection tool for battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310218976.5A CN116338257B (en) | 2023-03-08 | 2023-03-08 | DCR test auxiliary connection tool for battery pack |
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| CN116338257A true CN116338257A (en) | 2023-06-27 |
| CN116338257B CN116338257B (en) | 2023-12-05 |
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| CN202310218976.5A Active CN116338257B (en) | 2023-03-08 | 2023-03-08 | DCR test auxiliary connection tool for battery pack |
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