CN108931740B - Probe fixture for testing electrical performance of lithium battery - Google Patents
Probe fixture for testing electrical performance of lithium battery Download PDFInfo
- Publication number
- CN108931740B CN108931740B CN201811054356.8A CN201811054356A CN108931740B CN 108931740 B CN108931740 B CN 108931740B CN 201811054356 A CN201811054356 A CN 201811054356A CN 108931740 B CN108931740 B CN 108931740B
- Authority
- CN
- China
- Prior art keywords
- sampling
- overcurrent
- copper sheet
- elastic
- clamping seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000523 sample Substances 0.000 title claims abstract description 67
- 238000012360 testing method Methods 0.000 title claims abstract description 32
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 26
- 238000005070 sampling Methods 0.000 claims abstract description 153
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 104
- 229910052802 copper Inorganic materials 0.000 claims abstract description 104
- 239000010949 copper Substances 0.000 claims abstract description 104
- 239000002131 composite material Substances 0.000 claims abstract description 40
- 238000005452 bending Methods 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 229910000881 Cu alloy Inorganic materials 0.000 abstract description 16
- 238000001746 injection moulding Methods 0.000 abstract description 7
- 239000012212 insulator Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 description 6
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a probe clamp for testing electrical performance of a lithium battery, which comprises a clamp main body and an opening and closing driving block for driving the clamp main body to open and close, wherein the clamp main body comprises a first clamping seat and a second clamping seat which are mutually and pivotally connected, probe groups are respectively arranged on the first clamping seat and the second clamping seat, and each probe group comprises a composite overcurrent copper sheet and a composite sampling copper sheet. According to the invention, the copper alloy sheet with excellent elasticity and the copper alloy sheet with excellent conductivity are compounded to form the composite sampling copper sheet and the composite overcurrent copper sheet, so that the copper alloy sheet has excellent electric conductivity and fatigue resistance, and the service life of the probe clamp is prolonged. The special composite structure is adopted, so that the composite copper sheet and the contact are easy to weld integrally, the composite copper sheet and the external lead are also easy to weld integrally, the design is ingenious and reliable, and the implementation is easy. The design of the hollow cavity, the loading insulator and the bridge type wire clamping groove is easy to carry the temperature sensing probe, and the temperature measuring function is realized. The integrated injection molding design facilitates the manufacturing of the probe fixture.
Description
Technical Field
The invention relates to a probe clamp, in particular to a probe clamp for testing electrical properties of a lithium battery, and belongs to the technical field of probe detection clamps.
Background
The application of lithium cell is very extensive, and the test instrument equipment type that is used for the ageing partial volume of polymer physical battery is numerous, can adopt corresponding test equipment to different lithium cells, and probe anchor clamps structure in traditional test equipment is too succinct, need carry out the adaptation to the battery type to will survey the shell fragment and fix on anchor clamps through manual mode, still need manual centre gripping, test complex operation and inefficiency, unable adaptation demand.
The Chinese patent of the issued publication No. CN207301288U discloses a probe structure applied to a lithium power battery, which adopts an integrated clamp to integrate a copper sheet and the clamp into a whole, thereby meeting the requirements of universality and automatic clamping function.
However, the device is only used for setting the sampling copper sheet and the overcurrent copper sheet on the basis of the traditional automatic clamping tool, the clamping stability and the service life of the device are all defective, and the device has no temperature-sensing related test structure and cannot meet the requirement of high-current test. The copper alloy has performance difference, so that the copper alloy with high current conductivity has poor elastic recovery degree, and the copper alloy with better elastic recovery degree has lower conductivity, so that the copper alloy is difficult to meet the test requirement of high current aging capacity division.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a probe clamp for testing the electrical performance of a lithium battery, aiming at the problems of poor clamping stability and low fatigue resistance of the probe clamp in the prior art.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a probe clamp for testing the electrical performance of a lithium battery comprises a clamp main body and an opening and closing driving block for driving the clamp main body to open and close, wherein the clamp main body comprises a first clamping seat and a second clamping seat which are mutually and pivotally connected,
the first clamping seat and the second clamping seat are respectively provided with a probe group,
the probe set comprises a composite overcurrent copper sheet and a composite sampling copper sheet,
the composite overcurrent copper sheet comprises an elastic overcurrent copper sheet, a conductive overcurrent copper sheet and an overcurrent conductive contact which is respectively connected with the elastic overcurrent copper sheet and the conductive overcurrent copper sheet in a conductive way,
the composite sampling copper sheet comprises an elastic sampling copper sheet, a conductance sampling copper sheet and sampling conductive contacts respectively connected with the elastic sampling copper sheet and the conductance sampling copper sheet in a conductive way,
the first clamping seat is arranged opposite to the overcurrent conductive contact of the second clamping seat, and the first clamping seat is arranged opposite to the sampling conductive contact of the second clamping seat.
Preferably, one side of the conductance sampling copper sheet is provided with a plurality of rows of conductance sampling contact ends which are arranged in parallel, any conductance sampling contact end is provided with a conductance sampling circular through hole,
one side of the elastic sampling copper sheet is provided with a plurality of elastic sampling contact ends which are arranged in one-to-one correspondence with the conductivity sampling contact ends, any elastic sampling round through holes are arranged on the elastic sampling contact ends, elastic sampling annular convex protrusions are arranged on the outer edges of one sides of the elastic sampling round through holes, which face the conductivity sampling round through holes,
the sampling conductive contact comprises a sampling conductive contact and a sampling conductive column,
the elastic sampling annular convex is embedded into the conductive sampling circular through hole, and the sampling conductive column, the elastic sampling annular convex and the outer side wall of the conductive sampling circular through hole are welded into a whole.
Preferably, at least one conductivity sampling groove is formed in the conductivity sampling copper sheet, an everting buckle is arranged at the edge of the conductivity sampling groove, conductive through holes matched with the everting buckle are formed in the first clamping seat and the second clamping seat respectively, the conductive through holes and the conductivity sampling groove are filled with external welding materials, and an external lead, the conductivity sampling copper sheet and the elastic sampling copper sheet are welded integrally.
Preferably, the sampling conductive column of any one of the sampling conductive contacts is provided with a hollow cavity, and the temperature sensing probe is arranged in the hollow cavity.
Preferably, a loading insulating part is arranged in the hollow cavity, and two through holes for fixing the anode and the cathode of the temperature sensing probe are formed in the loading insulating part.
Preferably, bridge type wire clamping grooves for wiring the temperature sensing probe are respectively arranged on the first clamping seat and the second clamping seat.
Preferably, the free end of the elastic sampling contact end of the elastic sampling copper sheet is provided with a sampling bending part which is abutted with the sampling conductive contact,
and the free end of the elastic overcurrent copper sheet is provided with an overcurrent bending part which is abutted against the overcurrent conductive contact.
Preferably, one end of the elastic overcurrent copper sheet is provided with an elastic overcurrent circular through hole, one end of the electric conduction overcurrent copper sheet is provided with an electric conduction overcurrent circular through hole, the outer edge of one side of the elastic overcurrent circular through hole facing the electric conduction overcurrent circular through hole is provided with an elastic overcurrent annular convex part, the overcurrent conductive contact comprises an overcurrent conductive contact and an overcurrent conductive column,
the elastic overcurrent annular convex is embedded into the conductive overcurrent circular through hole, and the overcurrent conductive column is welded with the elastic overcurrent annular convex and the outer side wall of the conductive overcurrent circular through hole into a whole.
Preferably, the electrical contact surface of the overcurrent conductive contact and the sampling conductive contact are respectively provided with a plurality of pointed cone contact ends.
Preferably, the first clamping seat and the probe set are integrally injection molded,
the second clamping seat and the probe set are integrally injection molded.
Preferably, a torsion spring for elastic reset is arranged between the first clamping seat and the second clamping seat, roller shaft parts movably connected by rotary riveting pins are respectively arranged on the first clamping seat and the second clamping seat, and the roller shaft parts of the first clamping seat and the second clamping seat form a penetrating driving part for the penetrating connection of the opening and closing driving block.
The beneficial effects of the invention are mainly as follows:
1. the copper alloy sheet with excellent elasticity and the copper alloy sheet with excellent conductivity are adopted for compounding to form a composite sampling copper sheet and a composite overcurrent copper sheet, and the composite sampling copper sheet has excellent electric conductivity and fatigue resistance.
2. The special composite structure is adopted, so that the composite copper sheet and the contact are easy to weld integrally, the composite copper sheet and the external lead are also easy to weld integrally, the design is ingenious and reliable, and the implementation is easy.
3. The design of the hollow cavity, the loading insulator and the bridge type wire clamping groove is easy to carry the temperature sensing probe, and the temperature measuring function is realized.
4. The integrated injection molding design facilitates the manufacturing of the probe fixture.
5. The whole structure is simple and ingenious, the electric conduction is stable and reliable, and the service life of the probe clamp is greatly prolonged.
Drawings
Fig. 1 is a schematic view of a partially exploded structure of a probe fixture for electrical performance testing of a lithium battery according to the present invention.
Fig. 2 is a schematic diagram of an overall explosion structure of a probe fixture for testing electrical performance of a lithium battery according to the present invention.
Fig. 3 is a schematic view of a view of the clamp body according to the present invention.
Fig. 4 is a view showing a use state of a probe holder for testing electrical properties of a lithium battery according to the present invention.
Fig. 5 is a schematic view showing the structure of a probe set in a preferred embodiment of a probe holder for electrical performance testing of a lithium battery according to the present invention.
Detailed Description
The invention provides a probe clamp for testing electrical properties of a lithium battery. The following detailed description of the present invention is provided in connection with the accompanying drawings, so as to facilitate understanding and grasping thereof.
A probe clamp for testing electrical properties of lithium batteries is shown in fig. 1 to 4, and comprises a clamp main body 1 and an opening and closing driving block 2 for driving the clamp main body 1 to open and close, wherein the clamp main body 1 comprises a first clamping seat and a second clamping seat which are in pivot connection.
The opening and closing of the first clamping seat and the second clamping seat are caused by the driving of the opening and closing driving block 2, which belongs to the prior art, and the detailed description is carried out when specific realization functions and principles are to be explained.
In this case, the first clamping seat and the second clamping seat are respectively provided with a probe set, the probe set comprises a composite overcurrent copper sheet 3 and a composite sampling copper sheet 4, and the composite overcurrent copper sheet 3 comprises an elastic overcurrent copper sheet 31, a conductive overcurrent copper sheet 32 and an overcurrent conductive contact 33 respectively connected with the elastic overcurrent copper sheet 31 and the conductive overcurrent copper sheet 32 in a conductive way.
The composite sampling copper sheet 4 comprises an elastic sampling copper sheet 41, a conductivity sampling copper sheet 42 and sampling conductive contacts 43 respectively connected with the elastic sampling copper sheet 41 and the conductivity sampling copper sheet 42 in a conductive way.
The first holder is arranged opposite to the overcurrent conductive contact 33 of the second holder, and the first holder is arranged opposite to the sampling conductive contact 43 of the second holder.
Specifically, as known, the elastic recovery performance and the conductivity of the copper alloy are difficult to be completed, so that the elastic copper sheet with better elastic recovery degree and the conductive copper sheet with higher conductivity are adopted to be compositely used, the conductive copper sheet meets the conductivity requirement of a high-current test, the elastic copper sheet can improve the contact stability, resist fatigue and prolong the service life.
Wherein, the elastic overcurrent copper sheet 31 and the elastic sampling copper sheet 41 can be made of beryllium copper alloy, and the electric conduction overcurrent copper sheet 32 and the electric conduction sampling copper sheet 42 can be made of red copper alloy. Of course, other copper alloys with high elastic recovery and other copper alloys with higher conductivity may be selected. The composite structure ensures the high conductivity of the probe clamp and meets the high elastic recovery degree.
In the embodiment of the present case, one side of the conductive sampling copper sheet 42 is provided with a plurality of rows of conductive sampling contact ends 421 which are arranged in parallel, a conductive sampling circular through hole 422 is formed in any conductive sampling contact end 421, one side of the elastic sampling copper sheet 41 is provided with a plurality of elastic sampling contact ends 411 which are arranged in one-to-one correspondence with the conductive sampling contact ends 421, an elastic sampling circular through hole 412 is formed in any elastic sampling contact end 411, an elastic sampling annular convex 413 is formed in the outer edge of one side of the elastic sampling circular through hole 412, which faces the conductive sampling circular through hole 422, and the sampling conductive contact 43 comprises a sampling conductive contact 431 and a sampling conductive column 432.
During compounding, the elastic sampling annular convex 413 is embedded into the conductive sampling circular through hole 422, and the sampling conductive column 432 is welded with the elastic sampling annular convex 413 and the outer side wall of the conductive sampling circular through hole 422.
Specifically, the elastic sampling copper sheet 41 and the conductive sampling copper sheet 42 are stacked, so that the elastic sampling annular convex 413 is embedded into the conductive sampling circular through hole, then the sampling conductive contact 43 is connected in a penetrating manner, laser welding is performed on the outer side of the conductive sampling circular through hole 422, the elastic sampling copper sheet 41, the conductive sampling copper sheet 42 and the sampling conductive contact 43 are integrated into a whole, electroplating is performed after welding, and only the composite parts of the elastic sampling contact end 411, the conductive sampling contact end 421 and the sampling conductive contact 43 are required to be electroplated, so that integral electroplating is not required.
In addition, at least one conductivity sampling groove 423 is arranged on the conductivity sampling copper sheet 42, an everting buckle 5 is arranged on the groove edge of the conductivity sampling groove 423, a conductive through hole 11 matched with the everting buckle 5 is respectively arranged on the first clamping seat and the second clamping seat, the conductive through hole 11 and the conductivity sampling groove 423 are filled with external welding materials, and an external lead, the conductivity sampling copper sheet 42 and the elastic sampling copper sheet 41 are welded into a whole.
Specifically, by designing the everting buckle 5, the composite sampling copper sheet 3 is easy to be connected with the clamp body 1, and the conductance sampling groove 423 is easy to be welded, so that the solder can be effectively filled, and the external lead, the conductance sampling copper sheet 42 and the elastic sampling copper sheet 41 are welded into a whole.
The scheme can be optimized, and two welding parts are adopted to prevent one of the welding parts from malfunctioning.
In the preferred embodiment of the present invention, the sampling conductive column 432 of any one of the sampling conductive contacts 43 is provided with a hollow cavity 6, and the hollow cavity 6 is loaded with a temperature sensing probe. More precisely, a loading insulator 7 is arranged in the hollow cavity 6, and two through holes for fixing the anode and the cathode of the temperature sensing probe are respectively formed in the loading insulator 7. More preferably, the first clamping seat and the second clamping seat are respectively provided with a bridge type wire clamping groove 12 for wiring the temperature sensing probe. So design easily sets up temperature sensing probe in the probe anchor clamps, satisfies the temperature measurement demand.
In this case, an elastic through-current circular through hole 311 is disposed at one end of the elastic through-current copper sheet 31, an electric conduction through-current circular through hole 321 is disposed at one end of the electric conduction through-current copper sheet 32, and an elastic through-current annular convex 312 is disposed at an outer edge of one side of the elastic through-current circular through hole 311 facing the electric conduction through-current circular through hole 321, and the through-current conductive contact 33 includes an through-current conductive contact 331 and an through-current conductive post 332.
The elastic overcurrent annular convex 312 is embedded into the conductive overcurrent circular through hole 321, and the overcurrent conductive post 332 is welded with the elastic overcurrent annular convex 312 and the outer side wall of the conductive overcurrent circular through hole 321.
The welding integration principle is consistent with that of the composite sampling copper sheet 4, and the description is omitted.
In order to ensure effective contact between the contact and the battery tab, the electrical contact surfaces of the overcurrent conductive contact 331 and the sampling conductive contact 431 are respectively provided with a plurality of pointed cone contacts.
In yet another preferred embodiment of the present disclosure, as shown in fig. 5, a free end of the elastic sampling contact end 411 of the elastic sampling copper sheet 41 is provided with a sampling bending portion 414 that abuts against the sampling conductive contact 43, and a free end of the elastic overcurrent copper sheet 31 is provided with an overcurrent bending portion 313 that abuts against the overcurrent conductive contact 33.
Specifically, the sampling bending portion 414 and the overcurrent bending portion 313 can strengthen the conductive contact, and have better heat dissipation performance.
In addition, the morphological structures of the composite overcurrent copper sheet 3 and the composite sampling copper sheet 4 in the scheme are described in detail, the composite overcurrent copper sheet 3 is L-shaped, and the composite sampling copper sheet 4 is provided with a structure complementary with the L-shaped, and a gap is reserved between the composite overcurrent copper sheet 3 and the composite sampling copper sheet 4.
The probe clamp in the scheme is injection molding, namely the first clamping seat and the probe set are integrally injection molding, and the second clamping seat and the probe set are integrally injection molding. The integrated injection molding is adopted to facilitate the production and manufacture of the probe clamp.
Finally, the opening and closing principle of the probe clamp is refined, a torsion spring 9 for elastic reset is arranged between the first clamping seat and the second clamping seat, the first clamping seat and the second clamping seat are respectively provided with a roller shaft part 8 movably connected by a rotary riveting pin, and the roller shaft parts of the first clamping seat and the second clamping seat form a cross-connection driving part for the cross-connection of the opening and closing driving block 2.
Specifically, during clamping, the first clamping seat and the second clamping seat are in an opening shape, the battery lugs enter the opening, the opening-closing driving block 2 is driven to push along the cross-connection driving part, the first clamping seat and the second clamping seat are gradually clamped, the torsion spring 9 is pressed to generate elastic deformation, the contacts on two sides clamp the battery lugs respectively, after testing is completed, the opening-closing driving block 2 is withdrawn from the cross-connection driving part, and the torsion spring 9 elastically returns to drive the first clamping seat and the second clamping seat to be separated.
The driving block 2 is described in detail, and comprises a conical end 21, a straight transition end 22 and a limiting end 23, the conical end 21 is used for conveniently guiding the driving block 2 in an embedded manner and enabling the first clamping seat and the second clamping seat to open, the straight transition end 22 can realize stable clamping, the clamping force is prevented from being too large to damage the clamp and the battery lug, and the limiting end 23 is used for final protection.
From the above description, it can be found that the probe fixture for testing the electrical performance of the lithium battery provided by the invention adopts the copper alloy sheet with excellent elasticity to be compounded with the copper alloy sheet with excellent conductivity to form the composite sampling copper sheet and the composite overcurrent copper sheet, and has excellent electrical conductivity and fatigue resistance. The special composite structure is adopted, so that the composite copper sheet and the contact are easy to weld integrally, the composite copper sheet and the external lead are also easy to weld integrally, the design is ingenious and reliable, and the implementation is easy. The design of the hollow cavity, the loading insulator and the bridge type wire clamping groove is easy to carry the temperature sensing probe, and the temperature measuring function is realized. The integrated injection molding design facilitates the manufacturing of the probe fixture. The whole structure is simple and ingenious, the electric conduction is stable and reliable, and the service life of the probe clamp is greatly prolonged.
While the foregoing has been described in terms of embodiments of the present invention, it will be appreciated that the embodiments of the invention are not limited by the foregoing description, but rather, all embodiments of the invention may be modified in structure, method or function by one skilled in the art to incorporate the teachings of this invention, as expressed in terms of equivalent or equivalent embodiments, without departing from the scope of the invention.
Claims (10)
1. A probe clamp for testing the electrical performance of a lithium battery comprises a clamp main body and an opening and closing driving block for driving the clamp main body to open and close, wherein the clamp main body comprises a first clamping seat and a second clamping seat which are mutually and pivotally connected,
the method is characterized in that:
the first clamping seat and the second clamping seat are respectively provided with a probe group,
the probe set comprises a composite overcurrent copper sheet and a composite sampling copper sheet,
the composite overcurrent copper sheet comprises an elastic overcurrent copper sheet, a conductive overcurrent copper sheet and an overcurrent conductive contact which is respectively connected with the elastic overcurrent copper sheet and the conductive overcurrent copper sheet in a conductive way,
the composite sampling copper sheet comprises an elastic sampling copper sheet, a conductance sampling copper sheet and sampling conductive contacts respectively connected with the elastic sampling copper sheet and the conductance sampling copper sheet in a conductive way,
the first clamping seat is arranged opposite to the overcurrent conductive contact of the second clamping seat, and the first clamping seat is arranged opposite to the sampling conductive contact of the second clamping seat.
2. The probe fixture for electrical performance testing of lithium batteries of claim 1, wherein:
one side of the conductivity sampling copper sheet is provided with a plurality of rows of conductivity sampling contact ends which are arranged in parallel, any conductivity sampling contact end is provided with a conductivity sampling circular through hole,
one side of the elastic sampling copper sheet is provided with a plurality of elastic sampling contact ends which are arranged in one-to-one correspondence with the conductivity sampling contact ends, any elastic sampling round through holes are arranged on the elastic sampling contact ends, elastic sampling annular convex protrusions are arranged on the outer edges of one sides of the elastic sampling round through holes, which face the conductivity sampling round through holes,
the sampling conductive contact comprises a sampling conductive contact and a sampling conductive column,
the elastic sampling annular convex is embedded into the conductive sampling circular through hole, and the sampling conductive column, the elastic sampling annular convex and the outer side wall of the conductive sampling circular through hole are welded into a whole.
3. The probe fixture for electrical performance testing of lithium batteries of claim 2, wherein:
the electric conduction sampling copper sheet is characterized in that at least one electric conduction sampling groove is formed in the electric conduction sampling copper sheet, an everting buckle is arranged on the groove edge of the electric conduction sampling groove, guide through holes matched with the everting buckle are respectively formed in the first clamping seat and the second clamping seat, the guide through holes and the electric conduction sampling groove are filled with external welding materials, and an external lead, the electric conduction sampling copper sheet and the elastic sampling copper sheet are welded integrally.
4. The probe fixture for electrical performance testing of lithium batteries of claim 2, wherein:
any one sampling conductive column of the sampling conductive contact is provided with a hollow cavity, a temperature sensing probe is arranged in the hollow cavity, and bridge type wire clamping grooves for wiring the temperature sensing probe are respectively arranged on the first clamping seat and the second clamping seat.
5. The probe fixture for electrical performance testing of lithium batteries of claim 4, wherein:
the hollow cavity is internally provided with a loading insulating part, and two through holes for fixing the anode and the cathode of the temperature sensing probe are formed in the loading insulating part.
6. The probe fixture for electrical performance testing of lithium batteries of claim 2, wherein:
the free end of the elastic sampling contact end of the elastic sampling copper sheet is provided with a sampling bending part which is abutted with the sampling conductive contact,
and the free end of the elastic overcurrent copper sheet is provided with an overcurrent bending part which is abutted against the overcurrent conductive contact.
7. The probe fixture for electrical performance testing of lithium batteries of claim 2, wherein:
an elastic overcurrent circular through hole is arranged at one end of the elastic overcurrent copper sheet, an electric conductance overcurrent circular through hole is arranged at one end of the electric conductance overcurrent copper sheet, an elastic overcurrent annular convex is arranged at the outer edge of one side of the elastic overcurrent circular through hole, which faces the electric conductance overcurrent circular through hole, the overcurrent conductive contact comprises an overcurrent conductive contact and an overcurrent conductive column,
the elastic overcurrent annular convex is embedded into the conductive overcurrent circular through hole, and the overcurrent conductive column is welded with the elastic overcurrent annular convex and the outer side wall of the conductive overcurrent circular through hole into a whole.
8. The probe fixture for electrical performance testing of lithium batteries of claim 7, wherein:
the electric contact surface of the overcurrent conductive contact and the sampling conductive contact is respectively provided with a plurality of pointed cone contact ends.
9. The probe fixture for electrical performance testing of lithium batteries of claim 1, wherein:
the first clamping seat and the probe group are integrally injection molded,
the second clamping seat and the probe set are integrally injection molded.
10. The probe fixture for electrical performance testing of lithium batteries of claim 1, wherein:
the spring is arranged between the first clamping seat and the second clamping seat and used for elastic reset, the first clamping seat and the second clamping seat are respectively provided with a roller shaft part movably connected by a rotary riveting pin, and the roller shaft parts of the first clamping seat and the second clamping seat form a cross-connection driving part for the cross-connection of the opening and closing driving block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811054356.8A CN108931740B (en) | 2018-09-11 | 2018-09-11 | Probe fixture for testing electrical performance of lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811054356.8A CN108931740B (en) | 2018-09-11 | 2018-09-11 | Probe fixture for testing electrical performance of lithium battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108931740A CN108931740A (en) | 2018-12-04 |
| CN108931740B true CN108931740B (en) | 2023-09-05 |
Family
ID=64443932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811054356.8A Active CN108931740B (en) | 2018-09-11 | 2018-09-11 | Probe fixture for testing electrical performance of lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108931740B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110174533A (en) * | 2019-05-31 | 2019-08-27 | 东莞市盈之宝电子科技有限公司 | Manufacturing process of battery clamp clamping body |
| CN116626476B (en) * | 2023-07-26 | 2023-10-20 | 珠海市申科谱工业科技有限公司 | Laser chip probe testing mechanism |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101213463A (en) * | 2005-07-08 | 2008-07-02 | 佛姆法克特股份有限公司 | Probe Card Assembly with Interchangeable Probe Plugs |
| KR101688327B1 (en) * | 2015-09-11 | 2016-12-20 | 주식회사 메가터치 | Probe for testing charging and discharging of secondary battery |
| CN206353774U (en) * | 2016-12-21 | 2017-07-25 | 润恒光能有限公司 | The electric mould of a kind of solar photovoltaic assembly IV and EL test clips |
| CN106992083A (en) * | 2017-04-28 | 2017-07-28 | 河南基泰电气有限公司 | One kind is without excitation tap changer for three phases |
| CN206402524U (en) * | 2017-01-18 | 2017-08-11 | 广州市普今电子科技有限公司 | Excessively stream copper sheet and wiring board on a kind of wiring board |
| CN107367668A (en) * | 2017-08-02 | 2017-11-21 | 合肥国轩高科动力能源有限公司 | A method for testing the overcurrent capability of a lithium-ion battery cover fuse |
| CN207281125U (en) * | 2017-10-11 | 2018-04-27 | 昆山康信达光电有限公司 | A kind of battery testing probe structure |
| CN207281124U (en) * | 2017-10-11 | 2018-04-27 | 昆山康信达光电有限公司 | A kind of high power battery probe |
| CN207301288U (en) * | 2017-08-14 | 2018-05-01 | 东莞市盈之宝电子科技有限公司 | A kind of probe structure applied to lithium dynamical battery |
| CN208999546U (en) * | 2018-09-11 | 2019-06-18 | 昆山康信达光电有限公司 | A kind of probe clamp for lithium battery performance test |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100769891B1 (en) * | 2007-01-25 | 2007-10-24 | 리노공업주식회사 | Inspection probe and inspection socket using the same |
-
2018
- 2018-09-11 CN CN201811054356.8A patent/CN108931740B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101213463A (en) * | 2005-07-08 | 2008-07-02 | 佛姆法克特股份有限公司 | Probe Card Assembly with Interchangeable Probe Plugs |
| KR101688327B1 (en) * | 2015-09-11 | 2016-12-20 | 주식회사 메가터치 | Probe for testing charging and discharging of secondary battery |
| CN206353774U (en) * | 2016-12-21 | 2017-07-25 | 润恒光能有限公司 | The electric mould of a kind of solar photovoltaic assembly IV and EL test clips |
| CN206402524U (en) * | 2017-01-18 | 2017-08-11 | 广州市普今电子科技有限公司 | Excessively stream copper sheet and wiring board on a kind of wiring board |
| CN106992083A (en) * | 2017-04-28 | 2017-07-28 | 河南基泰电气有限公司 | One kind is without excitation tap changer for three phases |
| CN107367668A (en) * | 2017-08-02 | 2017-11-21 | 合肥国轩高科动力能源有限公司 | A method for testing the overcurrent capability of a lithium-ion battery cover fuse |
| CN207301288U (en) * | 2017-08-14 | 2018-05-01 | 东莞市盈之宝电子科技有限公司 | A kind of probe structure applied to lithium dynamical battery |
| CN207281125U (en) * | 2017-10-11 | 2018-04-27 | 昆山康信达光电有限公司 | A kind of battery testing probe structure |
| CN207281124U (en) * | 2017-10-11 | 2018-04-27 | 昆山康信达光电有限公司 | A kind of high power battery probe |
| CN208999546U (en) * | 2018-09-11 | 2019-06-18 | 昆山康信达光电有限公司 | A kind of probe clamp for lithium battery performance test |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108931740A (en) | 2018-12-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102412445B (en) | Terminal contact part included in jig for charging and discharging of secondary battery and jig including same | |
| KR102117848B1 (en) | Battery Module and Manufacturing the Same | |
| US10826134B2 (en) | Battery module | |
| KR20150014461A (en) | Bushing forming a terminal for a lithium storage battery and related storage battery | |
| CN108931740B (en) | Probe fixture for testing electrical performance of lithium battery | |
| KR101669116B1 (en) | Battery module having sensing member | |
| KR20120038218A (en) | Terminal contacting parts and jig for charging and discharging of secondary battery with the terminal contacting parts | |
| KR101037718B1 (en) | A block assembly for connecting the electrodes of the cell, a battery comprising the same, and a battery stack | |
| CN115389795A (en) | Cylindrical battery probe | |
| CN218584835U (en) | Detachable button cell test fixture | |
| KR20130088820A (en) | Terminal contacting parts and jig for charging and discharging of secondary battery with the terminal contacting parts | |
| KR20130071640A (en) | Electric cable connection structure for secondary battery charge and discharge probe | |
| CN208999546U (en) | A kind of probe clamp for lithium battery performance test | |
| CN207123545U (en) | An aging test fixture for battery overcurrent | |
| CN217035894U (en) | Electric connector and electric core charging and discharging test electric connection structure | |
| CN212646735U (en) | Lithium battery clamp | |
| CN222994623U (en) | Cylindrical battery test fixture | |
| CN219831185U (en) | Test fixture of electric core and electric core | |
| CN223308345U (en) | High temperature sodium battery monomer performance rapid test frock | |
| CN221926576U (en) | A kind of inventory battery cell detection fixture | |
| CN114114032A (en) | Four-wire system test fixture for high-power lithium battery | |
| CN107768846A (en) | A kind of battery pole ear clamping device | |
| CN218382928U (en) | Auxiliary device for testing all-solid-state battery | |
| CN221426730U (en) | Test fixture | |
| CN219105002U (en) | Multichannel battery detects anchor clamps |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 215000 room 3, No. 1601 Yingbin West Road, Bacheng Town, Kunshan City, Suzhou City, Jiangsu Province Applicant after: Kangxinda Technology (Suzhou) Co.,Ltd. Address before: 215300 room 3, No. 1601, Yingbin West Road, Bacheng Town, Kunshan City, Suzhou City, Jiangsu Province Applicant before: KUNSHAN KANG XINDA PHOTOELECTRIC CO.,LTD. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |