CN110850317A - Multi-station equal-line long contact module for ACIR (accelerated contact infrared spectroscopy) test - Google Patents
Multi-station equal-line long contact module for ACIR (accelerated contact infrared spectroscopy) test Download PDFInfo
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- CN110850317A CN110850317A CN201911197276.2A CN201911197276A CN110850317A CN 110850317 A CN110850317 A CN 110850317A CN 201911197276 A CN201911197276 A CN 201911197276A CN 110850317 A CN110850317 A CN 110850317A
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- 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]
- G01R31/389—Measuring internal impedance, internal conductance or related variables
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Abstract
A multi-station equal-length contact module for an ACIR test comprises a motion contact mechanism and a copper-clad bottom plate contact mechanism, wherein each set of contact probe assembly corresponds to one set of copper-clad bottom plate contact mechanism, and the copper-clad bottom plate contact mechanism is positioned right below the contact probe assembly and in the lifting stroke of a substrate; the motion contact mechanism comprises a substrate, at least one set of contact probe assembly, a needle plate connecting block, an air cylinder, a current-voltage adapter plate and an air cylinder connecting block; the copper-clad bottom plate contact mechanism comprises a copper bar, a seat and a printed board, wherein the copper bar covers the printed board, and the copper bar corresponds to probes in the contact probe assembly one by one; the bases are welded on the printed board and are connected with the copper bars in a one-to-one corresponding mode, and the bases are connected with the battery tab clamp. The invention has the beneficial effects that: the influence of winding and different lengths of copper wires on the measurement accuracy of the ACIR of the battery is reduced; the copper wire of the part which needs to move is divided into two parts, and the separated design is carried out to divide the copper wire into a copper bar and a probe, so that the influence on the measurement precision is reduced as much as possible.
Description
Technical Field
The invention relates to a multi-station equal-line long contact module for an ACIR (alternating Current infrared) test, belonging to the technical field of manufacturing of lithium battery test equipment.
Background
In the production process of the lithium battery, after the lithium battery is subjected to component capacity grading, an ACIR test is required to be performed on the lithium battery to obtain the alternating current internal resistance parameters of the lithium battery, and therefore the lithium battery with high alternating current internal resistance is selected to ensure the quality of low internal resistance of the lithium battery. In the conventional ACIR testing, a copper wire direct connection mode is mostly adopted to connect a test meter of the testing equipment with the positive electrode and the negative electrode of the lithium battery. The direct connection mode of the copper wires has the following disadvantages: firstly, the copper wire is too long, so that the voltage and the resistance of the copper wire are consumed more; secondly, copper wires are bundled together, and multiple channels are mutually interfered; thirdly, in the operation process of the equipment, the copper wire can move along with the equipment, so that the consistency of the ACIR test result is poor, the ACIR data of the battery cannot be accurately obtained, and the tested data cannot reflect the intrinsic data of the battery.
Disclosure of Invention
In order to solve the problems, the invention provides a multi-station equal-line-length contact module which can be used on ACIR testing equipment, so that the precision requirement of the ACIR testing equipment is ensured, and the accuracy of a battery ACIR testing result is ensured.
The invention relates to a multi-station equal-line-length contact module for an ACIR test, which is characterized in that: the device comprises a motion contact mechanism for being in contact connection with a battery tab and a copper-clad bottom plate contact mechanism for being butted with the motion contact mechanism, wherein each set of contact probe assembly corresponds to one set of copper-clad bottom plate contact mechanism, and the copper-clad bottom plate contact mechanism is positioned right below the contact probe assembly and in the lifting stroke of a substrate;
the motion contact mechanism comprises a substrate, at least one set of contact probe assembly, a needle plate connecting block, an air cylinder, a current-voltage adapter plate and an air cylinder connecting block, wherein the air cylinder connecting block and the needle plate connecting block are arranged on the substrate, and the telescopic end of the air cylinder is connected with the air cylinder connecting block on the substrate, so that the substrate is driven by the air cylinder to lift; the contact probe assembly is suspended below the substrate through a needle plate connecting block, and the probes of the contact probe assembly are kept to face the copper-clad bottom plate contact mechanism; the current-voltage adapter plate is paved on the substrate, and a signal connecting port of the current-voltage adapter plate is electrically connected with a signal transmission port of the contact probe assembly;
the copper-clad bottom plate contact mechanism comprises a copper bar, a seat and a printed board, wherein the copper bar covers the printed board, and the copper bar corresponds to the probes in the contact probe assembly one by one and is used for being in contact connection with the probes in the contact probe assembly; the bases are welded on the printed board and are connected with the copper bars in a one-to-one corresponding mode, and the bases are connected with the battery tab clamp.
The contact probe assembly comprises a probe mounting plate and a probe, the probe mounting plate is suspended below the substrate through a needle plate connecting block, a conducting wire is distributed in the probe mounting plate, one end of the conducting wire is electrically connected with the probe, and the other end of the conducting wire is electrically connected with a corresponding current-voltage adapter plate on the substrate, so that the conduction of a circuit between the probe and the current-voltage adapter plate is realized; the probe is embedded on the probe mounting plate, the contact connecting ends of the probe are kept to face towards the same direction and are positioned right above the copper bar of the copper-clad bottom plate contact mechanism, and the probe mounting plate can be in contact connection with the copper bar of the copper-clad bottom plate contact mechanism when moving along with the synchronous lifting of the substrate.
And a row of probes are embedded in the probe mounting plate along the axial direction.
The substrate is a rectangular plate, two sets of contact probe assemblies are arranged below the long edge of the substrate in parallel through a needle plate connecting block, and the probe mounting plates of the contact probe assemblies are kept parallel to the substrate; the short edge of the base plate is provided with a cylinder connecting block, each cylinder connecting block corresponds to a set of vertically installed cylinders, namely the telescopic direction of the telescopic end of each cylinder is perpendicular to the plane of the base plate.
And copper bars are arranged on the surface of the copper-clad bottom plate contact mechanism in parallel, wherein the copper bars correspond to the probes on the probe mounting plate right above one to one.
The printed boards are rectangular and are arranged in parallel on the same horizontal plane to form a printed board group, and the surfaces of the printed boards are covered with copper bars; the seat is welded at the edge of the printed board, the seat is arranged along the length direction of the printed board group, the copper bars are arranged along the width direction of the printed board group, the arrangement direction of the printed board is defined as the length direction of the printed board group, and the width direction of the printed board is the width direction of the printed board group.
The invention has the beneficial effects that: firstly, give up traditional copper conductor lug connection mode, improve the mode of taking copper layer printed board to connect, be about to mobilizable copper conductor and turn into to fix the copper bar on the printed board, adopt this kind of new connected mode, can reduce between the copper conductor winding and the influence of length difference to battery ACIR measurement accuracy. And secondly, the copper wire of the part which needs to move is divided into two parts, a separated design is carried out, the copper wire is divided into a copper bar and a probe, the separated design enables the current and voltage wire to keep still (the wire cannot be bent) when the inside of the equipment moves, and after the inside of the equipment moves in place, the moving contact mechanism assembly inside the equipment is connected with the separated design, so that the wire is communicated. The same state of the lead in the multiple measurement processes is ensured, and the influence on the measurement precision is reduced as much as possible.
Drawings
FIG. 1 is a schematic diagram of a multi-station equal-line long contact module for ACIR testing.
Fig. 2 is a front view of a multi-station, equal-wire length contact module for ACIR testing.
FIG. 3 is a side view of a multi-station, equal-length contact module for an ACIR test.
Fig. 4 is a left side view of a multi-station, equal line length contact module for ACIR testing.
Fig. 5 is a schematic structural diagram of a moving contact mechanism assembly of a multi-station equal-line long contact module for ACIR testing.
FIG. 6 is a schematic diagram of a contact probe assembly of the multi-station equal-length contact module for ACIR testing.
Fig. 7 is a schematic structural diagram of a copper-clad base plate assembly of the multi-station equal-line long contact module for ACIR test.
Detailed Description
The invention will be further explained with reference to the drawings
With reference to the accompanying drawings:
the motion contact mechanism 1 comprises a base plate 16, two sets of contact probe assemblies 11, a needle plate connecting block 12, an air cylinder 13, a current-voltage adapter plate 15 and an air cylinder connecting block 14, wherein the air cylinder connecting block 14 and the needle plate connecting block 12 are installed on the base plate 16, the air cylinder is installed on ACIR testing equipment, and the telescopic end of the air cylinder 13 is connected with the air cylinder connecting block on the base plate 16, so that the base plate 16 is driven by the air cylinder 13 to lift; the contact probe assembly 11 is suspended below the substrate 16 through the needle plate connecting block 12, and the probes of the contact probe assembly 11 are kept to face the copper-clad bottom plate contact mechanism 2; the current-voltage adapter plate 15 is paved on the substrate 16, and a signal connection port of the current-voltage adapter plate 15 is electrically connected with a signal transmission port of the contact probe assembly 11;
the copper-clad bottom plate contact mechanism 2 comprises a copper bar 21, a seat 22 and a printed board 23, wherein the copper bar 21 covers the printed board 23, and the copper bar 21 corresponds to probes in the contact probe assembly 11 one by one and is used for being in contact connection with the probes in the contact probe assembly 11; the bases 22 are welded on the printed board 23 and are connected with the copper bars 21 in a one-to-one correspondence mode, and the bases 22 are connected with the battery tab clamp.
The contact probe assembly 11 comprises a probe mounting plate 111 and a probe 112, the probe mounting plate 111 is suspended below the substrate 16 through a needle plate connecting block 12, a conducting wire is arranged in the probe mounting plate 111, one end of the conducting wire is electrically connected with the probe, and the other end of the conducting wire is electrically connected with a corresponding current-voltage adapter plate 15 on the substrate 16, so that the conduction of a circuit between the probe 112 and the current-voltage adapter plate 15 is realized; the probe 112 is embedded on the probe mounting plate 111, the contact connection ends of the probe 112 are kept to be consistent in orientation, and the probe mounting plate 111 is located right above the copper bar 21 of the copper-clad bottom plate contact mechanism 2, so that the probe mounting plate 111 can be in contact connection with the copper bar 21 of the copper-clad bottom plate contact mechanism 2 when moving up and down synchronously with the substrate 16.
The probe mounting plate 111 is embedded with a row of probes 112 along the axial direction.
The substrate 16 is a rectangular plate, two sets of contact probe assemblies 11 are arranged below the long side of the substrate 16 in parallel through a needle plate connecting block 12, and the probe mounting plates 111 of the contact probe assemblies 11 are kept parallel to the substrate; the short sides of the base plate 16 are respectively provided with a cylinder connecting block 14, each cylinder connecting block 14 corresponds to a set of vertically-mounted cylinders 13, namely, the telescopic direction of the telescopic end of each cylinder 13 is perpendicular to the plane of the base plate 16.
The copper-clad bottom plate contact mechanism 2 is characterized in that copper bars 21 are arranged on the surface in parallel, wherein the copper bars 21 correspond to probes on the probe mounting plate 11 which is positioned right above one by one.
The printed boards 23 are rectangular, the printed boards 23 are arranged in parallel on the same horizontal plane to form a printed board group, and the surfaces of the printed boards 23 are covered with the copper bars 21; the seat 22 is welded at the edge of the printed board 23, the seat 22 is arranged along the length direction of the printed board group, the copper bars are arranged along the width direction of the printed board group, the arrangement direction of the printed board is defined as the length direction of the printed board group, and the width direction of the printed board is defined as the width direction of the printed board group.
The motion contact mechanism assembly consists of a contact probe assembly, a needle plate connecting block, a cylinder connecting block, a current-voltage adapter plate and a substrate.
The contact probe assembly of the motion contact mechanism assembly consists of a probe mounting plate, a probe and the like, and the motion mechanism assembly is used for controlling the copper-clad base plate assembly to be in butt joint with the contact probe assembly so as to achieve the purpose of connecting a circuit. The contact probe assembly of the motion mechanism assembly is mainly in butt joint with the copper-clad bottom plate assembly to play a role in connecting a circuit, and the contact probe assembly is formed by embedding a probe on a probe mounting plate. The probe mounting plate is a structural member for mounting and fixing the probe, and the probe is a structural member for connecting a circuit. And the needle plate connecting block of the movement mechanism assembly is used for connecting the contact probe assembly and the substrate. The cylinder of the motion mechanism assembly is used for providing power for the motion mechanism assembly, so that the contact probe assembly on the motion mechanism assembly is in full contact with the copper-clad bottom plate assembly, and the communication of a circuit is ensured. And the cylinder connecting block of the movement mechanism assembly acts together to connect the cylinder and the substrate. The current-voltage adapter plate of the movement mechanism assembly replaces the traditional copper wire with a printed plate, and reduces the influence of the crossing, the different lengths, the winding and the like of the copper wire on the testing precision. The base plate of the motion mechanism assembly is a base and is used for connecting the main bodies of all the components.
The copper-clad bottom plate component consists of a copper bar, a base and a printed board, wherein the copper bar covers the printed board, and copper wires are arranged in parallel, so that the influence of copper wire intersection, different lengths, winding and the like on the ACIR testing precision of the battery is reduced; the copper bars correspond to the probes in the contact probe assembly one by one, and one copper bar replaces one lead; the seats are welded on the printed board and correspond to the copper bars one by one and are connected with the battery tab clamp.
Embodiment 3 as shown in fig. 1 to 4, the multi-station equal-line long contact module for ACIR testing according to the present invention is composed of a moving contact mechanism assembly 1 and a copper-clad base plate assembly 2.
As shown in fig. 5, the moving contact mechanism assembly 1 of the multi-station equal-line long contact module for ACIR testing according to the present invention comprises a contact probe assembly 11, a needle plate connecting block 12, an air cylinder 13, an air cylinder connecting block 14, a current-voltage adapter plate 15, and a structural bottom plate 16.
As shown in fig. 6, the contact probe assembly 11 of the moving contact mechanism assembly 1 of the multi-station equal-line-length contact module for ACIR testing according to the present invention is composed of two parts, i.e., a probe mounting plate 111 and a probe 112.
As shown in fig. 7, the copper-clad bottom plate assembly 2 of the multi-station equal-line-length contact module for the ACIR test of the invention is composed of three parts, namely a copper bar 21, a seat 22 and a printed board 23.
Referring to fig. 1-7, the structure and operation of the multi-station equal-line-length contact module for the ACIR test are described:
the motion contact mechanism assembly 1 of the multi-station equal-line long contact module for the ACIR test is used for controlling the butt joint of the copper-clad base plate assembly 2 and the contact probe assembly 11 so as to achieve the purpose of connecting a circuit. The contact probe assembly 11 of the motion contact mechanism assembly 1 is mainly butted with the copper-clad bottom plate assembly 2 to play a role in connecting a circuit. The probe mounting plate 111 is embedded with the probe 112. The probe mounting plate 111 is a structure for mounting and fixing the probe 112, and the probe 112 is a structure for connecting an electric circuit. The needle board connecting block 12 of the moving contact mechanism assembly 1 is used for connecting the contact probe assembly 11 and the substrate 16. And the cylinder 13 of the motion contact mechanism assembly 1 is used for providing power for the motion contact mechanism assembly 1, so that the contact probe assembly (11) on the motion contact mechanism assembly 1 is fully contacted with the copper-clad bottom plate assembly (2), and the circuit is ensured to be communicated. And a first cylinder connecting block (14) of the moving contact mechanism assembly 1 and a second cylinder connecting block (17) act together to connect the cylinder 13 and the substrate 16. The current-voltage adapter plate 15 of the motion contact mechanism assembly 1 replaces the traditional copper wire with a printed plate, and reduces the influence of the intersection, the different lengths, the winding and the like of the copper wire on the testing precision. The base plate 16 of the kinematic contact mechanism assembly 1 is a base for connecting the bodies of the various components. The cylinder connecting block 14 of the moving contact mechanism assembly 1 is used for connecting the cylinder 13 and the base plate 16 in a coaction mode.
According to the copper-clad bottom plate component 2 of the multi-station equal-line long-contact module for the ACIR test, the copper bars 21 cover the printed board 23, and copper wires are arranged in parallel, so that the influence of copper wire intersection, different lengths, winding and the like on the ACIR test precision of the battery is reduced; the copper bars 21 correspond to the probes 112 in the contact probe assembly 11 one by one, and one copper bar replaces one copper wire; and the seats 22 are welded on the printed board 23 and correspond to the copper bars 21 one by one, and are connected with the battery tab clamp.
The embodiments described in this specification are merely illustrative of implementations of the inventive concept and the scope of the present invention should not be considered limited to the specific forms set forth in the embodiments but includes equivalent technical means as would be recognized by those skilled in the art based on the inventive concept.
Claims (6)
1. The utility model provides a multistation isopine length contact module of ACIR test which characterized in that: the device comprises a motion contact mechanism for being in contact connection with a battery tab and a copper-clad bottom plate contact mechanism for being butted with the motion mechanism, wherein each set of contact probe assembly corresponds to one set of copper-clad bottom plate contact mechanism, and the copper-clad bottom plate contact mechanism is positioned right below the contact probe assembly and in the lifting stroke of a substrate;
the motion contact mechanism comprises a substrate, at least one set of contact probe assembly, a needle plate connecting block, an air cylinder, a current-voltage adapter plate and an air cylinder connecting block, wherein the air cylinder connecting block and the needle plate connecting block are arranged on the substrate, and the telescopic end of the air cylinder is connected with the air cylinder connecting block on the substrate, so that the substrate is driven by the air cylinder to lift; the contact probe assembly is suspended below the substrate through a needle plate connecting block, and the probes of the contact probe assembly are kept to face the copper-clad bottom plate contact mechanism; the current-voltage adapter plate is paved on the substrate, and a signal connecting port of the current-voltage adapter plate is electrically connected with a signal transmission port of the contact probe assembly;
the copper-clad bottom plate contact mechanism comprises a copper bar, a seat and a printed board, wherein the copper bar covers the printed board, and the copper bar corresponds to the probes in the contact probe assembly one by one and is used for being in contact connection with the probes in the contact probe assembly; the bases are welded on the printed board and are connected with the copper bars in a one-to-one corresponding mode, and the bases are connected with the battery tab clamp.
2. The multifunctional constant line length contact module for ACIR testing of claim 1, wherein: the contact probe assembly comprises a probe mounting plate and a probe, the probe mounting plate is suspended below the substrate through a needle plate connecting block, a conducting wire is distributed in the probe mounting plate, one end of the conducting wire is electrically connected with the probe, and the other end of the conducting wire is electrically connected with a corresponding current-voltage adapter plate on the substrate, so that the conduction of a circuit between the probe and the current-voltage adapter plate is realized; the probe is embedded on the probe mounting plate, the contact connecting ends of the probe are kept to face towards the same direction and are positioned right above the copper bar of the copper-clad bottom plate contact mechanism, and the probe mounting plate can be in contact connection with the copper bar of the copper-clad bottom plate contact mechanism when moving along with the synchronous lifting of the substrate.
3. The ACIR testing multi-station equal line length contact module of claim 2, wherein: and a row of probes are embedded in the probe mounting plate along the axial direction.
4. The ACIR testing multi-station equal line length contact module of claim 3, wherein: the substrate is a rectangular plate, two sets of contact probe assemblies are arranged below the long edge of the substrate in parallel through a needle plate connecting block, and the probe mounting plates of the contact probe assemblies are kept parallel to the substrate; the short edge of the base plate is provided with a cylinder connecting block, each cylinder connecting block corresponds to a set of vertically installed cylinders, namely the telescopic direction of the telescopic end of each cylinder is perpendicular to the plane of the base plate.
5. The multifunctional constant line length contact module for ACIR testing of claim 1, wherein: and copper bars are arranged on the surface of the copper-clad bottom plate contact mechanism in parallel, wherein the copper bars correspond to the probes on the probe mounting plate right above one to one.
6. The ACIR testing multi-station equal line length contact module of claim 5, wherein: the printed boards are rectangular and are arranged in parallel on the same horizontal plane to form a printed board group, and the surfaces of the printed boards are covered with copper bars; the seat is welded at the edge of the printed board, the seat is arranged along the length direction of the printed board group, the copper bars are arranged along the width direction of the printed board group, the arrangement direction of the printed board is defined as the length direction of the printed board group, and the width direction of the printed board is the width direction of the printed board group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911197276.2A CN110850317A (en) | 2019-11-29 | 2019-11-29 | Multi-station equal-line long contact module for ACIR (accelerated contact infrared spectroscopy) test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911197276.2A CN110850317A (en) | 2019-11-29 | 2019-11-29 | Multi-station equal-line long contact module for ACIR (accelerated contact infrared spectroscopy) test |
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| Publication Number | Publication Date |
|---|---|
| CN110850317A true CN110850317A (en) | 2020-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911197276.2A Pending CN110850317A (en) | 2019-11-29 | 2019-11-29 | Multi-station equal-line long contact module for ACIR (accelerated contact infrared spectroscopy) test |
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| CN (1) | CN110850317A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116540151A (en) * | 2023-07-06 | 2023-08-04 | 深圳市智诚测控技术有限公司 | Automatic testing equipment for battery bottom plate device and production line thereof |
-
2019
- 2019-11-29 CN CN201911197276.2A patent/CN110850317A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116540151A (en) * | 2023-07-06 | 2023-08-04 | 深圳市智诚测控技术有限公司 | Automatic testing equipment for battery bottom plate device and production line thereof |
| CN116540151B (en) * | 2023-07-06 | 2023-09-26 | 深圳市智诚测控技术有限公司 | Automatic testing equipment for battery bottom plate device and production line thereof |
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