CN215418429U - Open and stop battery system laminate polymer battery core module carrier structure - Google Patents
Open and stop battery system laminate polymer battery core module carrier structure Download PDFInfo
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- CN215418429U CN215418429U CN202121910199.3U CN202121910199U CN215418429U CN 215418429 U CN215418429 U CN 215418429U CN 202121910199 U CN202121910199 U CN 202121910199U CN 215418429 U CN215418429 U CN 215418429U
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- 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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Abstract
A soft package battery cell module carrier structure of a start-stop battery system comprises a plastic carrier body, wherein a through groove for a tab to pass through is formed in the plastic carrier body, the through groove is in a step shape, a trapezoid long strip hole with a trapezoid cross section is formed in the middle of the through groove, and the length of the upper bottom edge of the trapezoid is smaller than that of the lower bottom edge of the trapezoid; the two end parts of the passing groove are square long-strip holes with rectangular sections, and the section width a of the large square long-strip hole at the lower end of the passing groove is consistent with the length of the lower bottom edge of the trapezoid of the section of the trapezoid long-strip hole and is larger than the distance between the lugs on the two adjacent soft-package battery cells; the width b of the cross section of the small square strip hole passing through the upper end of the groove is consistent with the length of the upper bottom side of the trapezoid of the cross section of the trapezoid strip hole and is larger than the thickness of two tabs stacked together; the upper end surface of the plastic carrier body is provided with lightening grooves, and the lightening grooves and the passing grooves are arranged at intervals. The battery assembling efficiency is effectively improved, and the safety of the battery is improved.
Description
Technical Field
The utility model belongs to the technical field of battery PACK starting and stopping, and particularly relates to a soft package battery cell module carrier structure of a battery starting and stopping system.
Background
The electric core module of aluminum hull battery is piled up by a plurality of laminate polymer core parallels and is constituteed, pass through the groove back on the carrier with laminate polymer core's utmost point ear at last, form the battery return circuit with the utmost point ear welding of two adjacent laminate polymer core together, but the utmost point ear on the carrier of current aluminum hull battery inside passes through the groove, the square straight groove of width unanimity about general design, direct groove width is if too big can lead to the assembly in have the foreign matter to pass through the groove from utmost point ear and fall into inside the battery, the risk of battery short circuit can exist, nevertheless direct groove width if too little can lead to when assembling utmost point ear, produce the assembly and interfere, seriously influence the efficiency of assembly.
Disclosure of Invention
The utility model aims to overcome the defects in the technology, and provides a soft package battery cell module carrier structure of a start-stop battery system, so that the assembly efficiency of a battery is effectively improved, and the safety of the battery is improved.
The technical scheme of the utility model is as follows: a soft package battery cell module carrier structure of a start-stop battery system comprises a plastic carrier body, wherein a through groove for a tab to pass through is formed in the plastic carrier body, the through groove is in a step shape, a trapezoid long strip hole with a trapezoid cross section is formed in the middle of the through groove, and the length of the upper bottom edge of the trapezoid is smaller than that of the lower bottom edge of the trapezoid; the two end parts of the passing groove are square long-strip holes with rectangular sections, and the section width a of the large square long-strip hole at the lower end of the passing groove is consistent with the length of the lower bottom edge of the trapezoid of the section of the trapezoid long-strip hole and is larger than the distance between the lugs on the two adjacent soft-package battery cells; the width b of the cross section of the small square strip hole passing through the upper end of the groove is consistent with the length of the upper bottom side of the trapezoid of the cross section of the trapezoid strip hole and is larger than the thickness of two tabs stacked together; the upper end surface of the plastic carrier body is provided with lightening grooves, and the lightening grooves and the passing grooves are arranged at intervals.
The passing grooves and the lightening grooves are uniformly distributed in parallel along the transverse direction and the longitudinal direction of the plastic carrier.
The weight reduction groove is opposite to the butt welding spot of the lugs on the two adjacent soft-package battery cores. And the plastic carrier is prevented from melting and deforming due to local high temperature when the lugs are butt welded.
The upper end face of the plastic carrier is provided with a groove capable of bearing the flexible circuit board and the positive/negative jack copper bars.
An avoidance counter bore and more than two positioning columns are arranged in the groove for bearing the positive/negative electrode jack copper bar, the avoidance counter bore is used for avoiding the jack terminal, the positioning columns are respectively arranged on two end parts of the corresponding groove, and the top ends of the positioning columns close to the middle part of the plastic carrier are lower than the upper end face of the plastic carrier; and the positive/negative electrode jack copper bar is provided with a positioning hole correspondingly matched with the positioning column, the positioning hole on the positive/negative electrode jack copper bar and the corresponding positioning column are positioned and then are melted into a whole, and the upper end surface of the positive/negative electrode jack copper bar slightly protrudes out of the upper end surface of the plastic carrier after being installed in place.
The groove for bearing the flexible circuit board extends along the width direction of the plastic carrier and is positioned in the middle of the plastic carrier, at least one buckle is vertically arranged at the bottom of the groove, and a clamping hole for clamping the buckle is formed in the flexible circuit board.
The buckle is characterized in that the upper end of the buckle is provided with a through groove and forms an expansion structure consisting of two spring petals, the top end of each spring petal protrudes outwards to form a semicircular boss, when the top end of the buckle contracts, the diameter of a circle where each boss is located is smaller than the aperture of the clamping hole, and after the top end of the buckle expands, the diameter of the circle where each boss is located is larger than the aperture of the clamping hole.
And the plastic carrier is provided with a through clearance groove which is communicated with the groove for bearing the flexible circuit board.
The plastic carrier up end is equipped with two just/negative pole jack copper bars, and the inside netted torsional spring that is equipped with of jack terminal on the just/negative pole jack copper bar, netted torsional spring can effectually guarantee jack terminal and contact pin and to inserting the back abundant contact, when passing through heavy current, prevents that the virtual connection from causing the emergence of the too high phenomenon of temperature rise.
According to the utility model, by changing the structure that the lug on the plastic carrier passes through the groove, the battery short circuit caused by foreign matters entering the battery in the assembly process can be prevented, the safety of the battery is improved, the assembly efficiency of the battery can be effectively improved, and the production time is saved. The weight reduction grooves designed on the plastic carrier can reduce the weight of the battery, lighten the weight of the battery and prevent the plastic carrier from melting and deforming due to local high temperature when the lugs are butt welded.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the present invention assembled inside a battery housing;
in the figure: 2. the electrode lug is 6, the plastic carrier body is 61, the positive/negative electrode jack copper bars are 62, the buckles are 63, the clearance grooves are 64, the through grooves are 65, and the weight reduction grooves are formed.
Detailed Description
In fig. 1 and 2, a through groove 64 for passing the tab 2 is formed on the plastic carrier body 6, a lightening groove 65 is formed on the upper end surface of the plastic carrier body 6, the through groove 64 is of a ladder shape, the middle part of the through groove is a trapezoid long-strip hole with a trapezoid cross section, the length of the upper bottom edge of the trapezoid is smaller than that of the lower bottom edge of the trapezoid, the two end parts of the through groove 64 are square long-strip holes with rectangular cross sections, the cross section width a of the large square long-strip hole at the lower end of the through groove 64 is larger than the distance between the tabs 2 on two adjacent soft-package cells 3, the cross section width b of the small square long-strip hole at the upper end is slightly larger than the thickness of the stacked two tabs 2, the width a is equal to the length of the lower bottom edge of the trapezoid, the width b is equal to the length of the upper bottom edge of the trapezoid, a large-size side is designed through the lower end opening of the groove 64, so that the tabs 2 of 14 stacked cells can pass through smoothly and are easy to assemble after being bent and closed, the assembly efficiency is improved, and the upper end design through the groove 64, and prevents foreign materials from falling into the battery from the through groove 64 during the assembly process, thereby causing a short circuit. Subtract heavy groove 65 and through groove 64 interval arrangement, after the plastics carrier body 6 was assembled to the electricity core module, the utmost point ear 2 of two adjacent soft-packaged electrical cores was worn out the back from same groove 64 that passes through, roll the screen and become 180 covers on the heavy groove 65 that subtracts that corresponds, later form a return circuit with the utmost point ear 2 welding back of two adjacent soft-packaged electrical cores with laser, utmost point ear 2's butt welding point is located the top that subtracts heavy groove 65, the high temperature when preventing to weld, make the plastics carrier body 6 that contacts the welding point and be melt, cause the structure unstability.
The plastic carrier body 6 is a plastic part, the length and the width of the plastic part are designed according to the size of the outline of the battery cell module, and the appearance of the battery cell module is effectively clamped; the thickness of the plastic part cannot be too small, which results in poor mechanical strength. The plastic part is made of PA 66. The PA66 has good insulativity, strong heat resistance, good corrosion resistance and high mechanical strength, and the fireproof grade of the material is UL-94-V0, so the PA66 is widely applied to the technical field of PACK of high-rate start-stop batteries. The through slots 64 and the lightening slots are all distributed side by side in the transverse direction and the longitudinal direction of the plastic carrier body 6, and the lightening slots 65 and the through slots 64 are arranged at intervals. The narrowest width of the positive/negative electrode jack copper bar 61 is 5.5 +/-0.1 mm, the thickness is 3 +/-0.1 mm, and the continuous overcurrent capacity is more than 120A; the electric energy generated by the battery cell module is led out after being oppositely inserted through the positive/negative jack copper bar 61 embedded in the plastic carrier body 6 and the positive/negative pin copper bar in the upper cover. The continuous overcurrent capacity of the jack terminals of the positive/negative jack copper bars 61 is greater than 220A; the reticular torsional spring in the jack terminal can be effectively guaranteed to be fully contacted with the pin terminal after being inserted, the 400A large current is passed after the power-on, and the phenomena of virtual connection and temperature rise are avoided. The plastic part is injection mold integrated into one piece, positive/negative pole jack copper bar 61 and jack terminal are stamping die integrated into one piece, and positive/negative pole jack copper bar 61 and jack terminal are through riveting + laser welding mode, and the broken ring drawing force is greater than 700N.
The positive/negative electrode jack copper bar 61 consists of a positive/negative electrode copper bar and a jack terminal, the material of the positive/negative electrode copper bar is T2 red copper, the surface is plated with nickel, and the thickness of a plating layer is 2.5-4 um; the jack terminal comprises terminal shell, terminal cap and netted torsional spring, and terminal shell and terminal cap material T2 red copper, the surface silvering, cladding thickness are 5-10um, netted torsional spring material beryllium copper, the surface silvering, cladding thickness are 5-10um, and the high rate that the contact pin jack scheme is used in space limitation stops battery PACK technical field widely.
The upper end face of the plastic part is also provided with a groove capable of bearing the flexible circuit board, the positive/negative jack copper bars 61 and a through clearance groove 63, and the clearance groove 63 is communicated with the groove for bearing the flexible circuit board.
An avoidance counter bore for avoiding the jack terminal and more than two positioning columns are arranged in the groove for bearing the positive/negative jack copper bar 61, the positioning columns are respectively arranged on two end parts of the corresponding groove, and the top ends of the positioning columns close to the middle part of the plastic carrier body 6 are lower than the upper end surface of the plastic carrier; the positive/negative electrode jack copper bar 61 is provided with a positioning hole correspondingly matched with the positioning column, the positioning hole on the positive/negative electrode jack copper bar 61 and the corresponding positioning column are positioned and then are melted into a whole, the ring breaking drawing force is greater than 30N after assembly, and the phenomenon that the insert jack copper bar in the plastic carrier is not tilted, loosened and the like is ensured. After the positive/negative electrode jack copper bars 61 are installed in place, the upper end surfaces slightly protrude out of the upper end surface of the plastic carrier body 6. The plastic carrier body 6 is mainly used for receiving the electrode lug of the battery cell module and preventing short circuit during laser welding.
The groove for bearing the flexible circuit board extends along the width direction of the plastic carrier body 6 and is positioned in the middle of the plastic carrier body 6, at least one buckle 62 is vertically arranged at the bottom of the groove, and a clamping hole for clamping the buckle 62 is formed in the flexible circuit board; a through groove is opened to buckle 62 upper end to form two reed petals and constitute expanding structure, and the outside protrusion in every reed petal top has semi-circular boss, and when the buckle top shrink, each boss place circle diameter is less than the aperture in card hole, and when buckle top inflation back, the diameter of each boss place circle is greater than the aperture in card hole, prevents that developments in-process flexible line board and buckle pine from taking off, causes the system short circuit.
Claims (9)
1. The utility model provides a stop battery system laminate polymer battery cell module carrier structure which characterized in that: the electrode tab fixing device comprises a plastic carrier body (6), wherein a through groove (64) for the electrode tab to pass through is formed in the plastic carrier body (6), the through groove (64) is in a step shape, a trapezoid long hole with a trapezoid cross section is formed in the middle of the through groove (64), and the length of the upper bottom edge of the trapezoid is smaller than that of the lower bottom edge of the trapezoid; the two end parts of the passing groove (64) are square strip holes with rectangular sections, and the section width a of the square strip hole passing through the lower end of the passing groove (64) is consistent with the length of the lower bottom edge of the trapezoid strip hole and is larger than the distance between the lugs on the two adjacent soft-package battery cells (3); the section width b of the small square strip hole passing through the upper end of the groove (64) is consistent with the length of the upper bottom side of the trapezoid strip hole and is larger than the thickness of two tabs stacked together; the upper end surface of the plastic carrier body (6) is provided with lightening grooves (65), and the lightening grooves (65) and the through grooves (64) are arranged at intervals.
2. The utility model discloses a stop battery system laminate polymer cell module carrier structure of claim 1, its characterized in that: the through grooves (64) and the lightening grooves (65) are uniformly distributed in parallel along the transverse direction and the longitudinal direction of the plastic carrier body (6).
3. The utility model provides a stop battery system laminate polymer core module carrier structure of claim 1 or 2, its characterized in that: the weight reduction groove (65) is opposite to the welding spot of the butt welding of the lugs on the two adjacent soft-package battery cores (3).
4. The utility model provides a stop battery system laminate polymer core module carrier structure of claim 1 or 2, its characterized in that: the upper end face of the plastic carrier body (6) is provided with a groove capable of bearing the flexible circuit board and the positive/negative jack copper bars (61).
5. The utility model discloses a stop battery system laminate polymer cell module carrier structure of claim 4, its characterized in that: an avoidance counter bore and more than two positioning columns are arranged in the groove for bearing the positive/negative electrode jack copper bar (61), the avoidance counter bore is used for avoiding the jack terminal, the positioning columns are respectively arranged at two ends of the corresponding groove, and the top end of the positioning column close to the middle part of the plastic carrier body (6) is lower than the upper end face of the plastic carrier; the positive/negative electrode jack copper bar (61) is provided with a positioning hole correspondingly matched with the positioning column, the positioning hole on the positive/negative electrode jack copper bar (61) is integrated with the corresponding positioning column through hot melting after being positioned, and the upper end surface of the positive/negative electrode jack copper bar (61) slightly protrudes out of the upper end surface of the plastic carrier body (6) after being installed in place.
6. The utility model discloses a stop battery system laminate polymer cell module carrier structure of claim 4, its characterized in that: the groove for bearing the flexible circuit board extends along the width direction of the plastic carrier body (6) and is positioned in the middle of the plastic carrier body (6), at least one buckle (62) is vertically arranged at the bottom of the groove, and a clamping hole for clamping the buckle (62) is formed in the flexible circuit board.
7. The utility model discloses a stop battery system laminate polymer cell module carrier structure of claim 6, its characterized in that: the upper end of the buckle (62) is provided with a through groove and forms an expansion structure formed by two spring petals, the top end of each spring petal protrudes outwards to form a semicircular boss, when the top end of the buckle contracts, the diameter of a circle where each boss is located is smaller than the aperture of the clamping hole, and after the top end of the buckle expands, the diameter of the circle where each boss is located is larger than the aperture of the clamping hole.
8. The soft-package battery cell module carrier structure of the start-stop battery system according to any one of claims 5 and 6, characterized in that: and the plastic carrier body (6) is provided with a through clearance groove (63), and the clearance groove (63) is communicated with a groove for bearing the flexible circuit board.
9. The utility model discloses a stop battery system laminate polymer cell module carrier structure of claim 1, its characterized in that: two positive/negative electrode jack copper bars (61) are arranged on the upper end face of the plastic carrier body (6), and meshed torsion springs are arranged inside jack terminals on the positive/negative electrode jack copper bars (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121910199.3U CN215418429U (en) | 2021-08-16 | 2021-08-16 | Open and stop battery system laminate polymer battery core module carrier structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121910199.3U CN215418429U (en) | 2021-08-16 | 2021-08-16 | Open and stop battery system laminate polymer battery core module carrier structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215418429U true CN215418429U (en) | 2022-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121910199.3U Active CN215418429U (en) | 2021-08-16 | 2021-08-16 | Open and stop battery system laminate polymer battery core module carrier structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215418429U (en) |
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2021
- 2021-08-16 CN CN202121910199.3U patent/CN215418429U/en active Active
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