CN114628853A - Equipotential connecting device, using method and battery pack - Google Patents
Equipotential connecting device, using method and battery pack Download PDFInfo
- Publication number
- CN114628853A CN114628853A CN202210249557.3A CN202210249557A CN114628853A CN 114628853 A CN114628853 A CN 114628853A CN 202210249557 A CN202210249557 A CN 202210249557A CN 114628853 A CN114628853 A CN 114628853A
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- China
- Prior art keywords
- connecting device
- equipotential
- box body
- angle plate
- thread
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
- H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
The invention relates to an equipotential connecting device, a using method and a battery pack, which comprise a connecting device, a base and a connecting angle plate, wherein the connecting device consists of a driving interface, a threaded connecting part, a pressure-bearing surface and a protruding structure; the inner wall of the driving interface is provided with a threaded connecting part, and the threaded connecting part comprises a thread forming part and a thread coupling part which are sequentially arranged from bottom to top; the bottom of the pressure bearing surface is provided with a plurality of protruding structures; the middle part of the upper surface of the base is connected with a cylindrical connecting part; the thread forming part can be used for tapping an external thread which is matched and connected with the thread coupling part on the outer wall of the cylindrical connecting part. The invention simultaneously realizes the functions of the equipotential line and the fastener, simplifies the assembly process and reduces the cost.
Description
Technical Field
The invention relates to the technical field of automobile power batteries, in particular to an equipotential connecting device, a using method and a battery pack.
Background
The connection impedance between the exposed conductive metal parts such as the metal box cover, the connector fixing panel and the like of the battery pack and the box body or the level platform is less than 0.1 omega; usually, the exposed conductive metal parts, the box body or the level platform are subjected to anti-corrosion surface treatment, and the parts are connected through fasteners to cause insufficient electrical contact; locally removing the anti-corrosion coating on the surface of the part or locally pre-shielding the part to avoid applying the anti-corrosion coating increases the manufacturing complexity and cost, the long-term stability of low-impedance connection between the equipotential parts cannot be ensured, and the potential safety hazard of electric shock of personnel exists. Achieving equipotential between parts through a self-tapping bolt and an equipotential harness increases the cost and assembly complexity, and requires additional space for arrangement.
Based on the above consideration, the invention designs an equipotential connecting device, a using method and a battery pack.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an equipotential connecting device, a using method and a battery pack, wherein the equipotential connecting device has good electric conduction characteristics, the equipotential connecting device can locally penetrate through a coating on the surface of a part and perform extrusion, cutting and other processing on the part in the movement process of connecting and fixing metal parts, and the local structure of the equipotential connecting device is embedded into the part and is in pressure contact with a part substrate in a connection state, so that low-impedance connection between the metal parts with high-impedance surface coatings is realized; the battery pack with the equipotential connecting device is further provided, so that sufficient electric contact is established between metal parts with high-impedance surface coatings without adding an additional treatment process in the process of manufacturing assembly parts, and the connection impedance between the exposed conductive metal parts of the battery pack and the box body is smaller than 0.1 omega.
In order to realize the purpose of the invention, the invention adopts the technical scheme that:
the invention discloses an equipotential connecting device which comprises a connecting device, a base and a connecting angle plate, wherein the connecting device is composed of a driving interface, a threaded connecting part, a pressure-bearing surface and a protruding structure, the driving interface is formed by integrally combining an upper clamping part and a lower connecting ring, the shape of the outer wall of the clamping part is coupled and matched with a screwing sleeve, and the lower surface of the lower connecting ring is the pressure-bearing surface; the inner wall of the driving interface is provided with a threaded connecting part, and the threaded connecting part comprises a thread forming part and a thread coupling part which are sequentially arranged from bottom to top; the bottom of the pressure bearing surface is provided with a plurality of protruding structures;
the middle part of the upper surface of the base is connected with a cylindrical connecting part; the connecting angle plate is provided with a mounting hole for the cylindrical connecting part to pass through;
the thread forming part can be used for tapping an external thread matched and connected with the thread coupling part on the outer wall of the cylindrical connecting part;
the connecting device is made of low-resistivity metal, and a low-impedance anticorrosive coating is arranged on the surface of the connecting device; and protective coatings with poor conductivity are arranged on the outer surfaces of the base and the connecting angle plate.
The circumference of screw thread shaping portion is equipped with a plurality of chip grooves at the equal interval.
The convex structure is composed of an arc-shaped face and a cutting face, the convex structure is arrayed on the pressure-bearing face in a shaft collar shape by taking the axis of the driving interface as a shaft, and the section extension line of the cutting face passes through the axis of the driving interface.
The protruding structure is of a rectangular pyramid structure, and the cutting surface of the protruding structure is of a triangular structure.
The height of the protruding structure is 0.2 mm-0.8 mm; the height of the angle plate is larger than the thickness of the protective coating on the outer surface of the connecting angle plate.
The outer wall of the clamping portion is of a hexagonal structure.
The low-impedance anticorrosive coating on the surface of the connecting device is zinc alloy.
The invention discloses a using method of an equipotential connecting device, which comprises the following steps,
step S1, the mounting hole on the connecting angle plate is placed on the base after penetrating through the cylindrical connecting part;
step S2, after the screwing sleeve on the driving tool is sleeved with the clamping part of the connecting device, the driving tool is started to apply certain downward pressure and drive the connecting device to rotate relative to the base, and external threads matched and connected with the thread coupling part are tapped on the surface of the cylindrical connecting part in the rotating process of the thread forming part; meanwhile, the convex structures on the pressure bearing surfaces extrude and cut the upper surfaces of the connecting angle plates to remove local protective coatings on the upper surfaces of the connecting angle plates, and a plurality of grooves are machined in the upper surfaces of the connecting angle plates.
The invention discloses a battery pack with an equipotential connecting device, which comprises a battery pack body, wherein the battery pack body comprises a box body, a box cover, a connector bracket, a battery and a connecting device, the box body is of a hollow top opening structure, the battery is arranged in the box body, the box cover is arranged at an opening above the box body, and the connector bracket is connected between the box body and the box cover; the box body is provided with an equipotential line which is in equipotential connection with the vehicle body, the bottom of the inner wall of the box body is provided with a connecting pin, the inner side of the connector support is provided with a connecting angle plate, the connecting angle plate is provided with a mounting hole for the connecting pin to pass through, and the thread forming part of the connecting device can be used for tapping an external thread which is matched and connected with the thread coupling part on the connecting pin; and protective coatings with poor conductivity are arranged on the outer surfaces of the box body and the connector bracket.
The invention has the beneficial effects that:
1) according to the invention, the functions of the equipotential line and the fastener are realized simultaneously through the equipotential connecting device, so that the assembly process is simplified, and the cost is reduced; the cylindrical connecting part does not need to be preprocessed with threads before assembly, the threads are in gapless fit in the installation process of the cylindrical connecting part surface forming threads, and the mechanical stability is improved while the cost is reduced.
2) The invention avoids insufficient electric contact caused by surface oxidation, pollution and other factors by the electric connection coupling characteristics of the equipotential connecting device, the base and the connecting angle plate which are formed in the assembly site, and the reliability of low-impedance connection between the base and the connecting object is improved because the electric connection coupling characteristics of the base and the connecting object are in pressure contact with the connecting device.
Drawings
FIG. 1 is an exploded view of a prior art connection between an exposed conductive metal part and a level stand;
FIG. 2 is a schematic view of a prior art connection between an exposed conductive metal part and a level stand;
FIG. 3 is a cross-sectional view of a portion of the structure of FIG. 2;
FIG. 4 is a schematic structural diagram of a connecting device according to an embodiment;
FIG. 5 is a bottom view of the coupling device according to one embodiment;
FIG. 6 is a cross-sectional view of a connecting device according to one embodiment;
FIG. 7 is an exploded view of the base and the connecting gusset in accordance with one embodiment;
FIG. 8 is a schematic structural diagram according to the first embodiment;
FIG. 9 is a sectional view of a part of the first embodiment;
FIG. 10 is a schematic view showing a structure of a connecting device according to a second embodiment;
FIG. 11 is a bottom view of the coupling device of the second embodiment;
FIG. 12 is a cross-sectional view of the connecting device according to the second embodiment;
fig. 13 is a schematic view illustrating a structure of a battery pack having an equipotential connecting device according to the present invention;
fig. 14 is a cross-sectional view of a portion of the structure of fig. 13.
Detailed Description
In order to make those skilled in the art understand the technical solution of the present invention, the present invention is further described in detail with reference to the embodiments and the accompanying drawings; it should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of the present invention, and are not intended to limit the present invention;
in the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "inner", "outer", "front", "rear", and the like, which indicate positional relationships, are based on the positional relationships shown in the drawings, and are only for convenience of describing the present invention and do not require that the present invention be constructed in specific positional relationships, and thus should not be construed as limiting the present invention.
In the description of the present invention, the terms "mounted" and "connected" should be interpreted broadly, and may be fixed or detachable, and may be directly connected or indirectly connected through an intermediary; those skilled in the art can understand the specific meaning of the above terms in the present invention according to specific situations.
As shown in fig. 1-3, which are schematic diagrams illustrating connection between an exposed conductive metal part and a level platform in the prior art, an electrical platform 1 is provided with a stud 11, and a layer of insulating coating is attached to the surface of the stud 11 after the electrical platform 1 is subjected to surface treatment; the panel 12 is made of a metal material, the panel 12 is subjected to surface treatment based on corrosion resistance and appearance requirements, and a protective coating with poor conductivity is attached to the surface of the panel 12 after the surface treatment; the panel 12 is mounted to the level stand 1 by a plurality of nuts 13; in order to satisfy safety, the installation state panel 12 and the electric level platform 1 are required to realize good electric contact; because the outer surface of the stud 11 is provided with the insulating coating, the low-impedance conduction between the stud 11 and the nut 13 cannot be ensured after the nut 13 is screwed down; since the surface of the panel 12 is provided with the protective coating having poor conductivity, the nut 13 cannot reliably penetrate the protective coating during the installation process, and thus low resistance conduction between the nut 13 and the panel 12 cannot be ensured after the nut 13 is tightened. The above limitations result in the panel 12 and the electrical platform 1 not being able to make good electrical contact; however, partially masking the level block 1 and the faceplate 12 prior to surface treatment increases material and labor costs and thus increases manufacturing costs.
The first embodiment is as follows: as shown in fig. 4-9, the embodiment discloses an equipotential connecting device, which includes a connecting device 2, a base 3, and a connecting angle plate 4, where the connecting device 2 is composed of a driving interface 21, a threaded connection portion 22, a pressure-bearing surface 23, and a protruding structure 24, the driving interface 21 is formed by integrally combining an upper clamping portion 211 and a lower connecting ring 212, the outer wall of the clamping portion 211 is shaped to match with a tightening sleeve, and the lower surface of the lower connecting ring 212 is the pressure-bearing surface 23; the inner wall of the driving interface 21 is provided with a threaded connection part 22, and the threaded connection part 22 comprises a thread forming part 221 and a thread coupling part 222 which are sequentially arranged from bottom to top; the bottom of the pressure bearing face 23 is provided with a plurality of protruding structures 24,
the middle part of the upper surface of the base 3 is connected with a cylindrical connecting part 31; the connecting angle plate 4 is provided with a mounting hole 41 for the cylindrical connecting part 31 to pass through;
the thread forming part 221 can tap an external thread 311 matched and connected with the thread coupling part 222 on the outer wall of the cylindrical connecting part 31;
the connection means 2 are made of a metal of low resistivity, such as steel, copper, etc.; the surface of the electrophoretic coating is provided with a low-impedance anticorrosive coating, and the anticorrosive electrophoretic coating usually has no conductivity; the outer surfaces of the base 3 and the connecting angle plate 4 are respectively provided with a protective coating with poor conductivity, the connecting device 2 synchronously finishes scraping the local protective coatings of the base 3 and the connecting angle plate 4 in the mounting and fastening process, and the connecting device 2 is respectively and electrically connected with the base 3 and the connecting angle plate 4, so that the base 3 and the connecting object 4 are electrically contacted well.
The thread forming portion 221 is provided with a plurality of flutes 2211 at equal intervals in the circumferential direction, and can accommodate chips generated in the process of tapping the external thread 311.
The protruding structure 24 consists of an arc-shaped face and a cutting face 241, the protruding structure 24 is arrayed on the pressure-bearing face 23 in a collar shape by taking the axis of the driving interface 21 as a shaft, the cross section extension line of the cutting face 241 passes through the axis of the driving interface 21, the effective torque is larger during rotary cutting, the interference area between the protruding structure and the pressure-bearing face material is increased, and a groove is formed in the pressure-bearing face; the groove of the arc-shaped face on the pressure bearing face is larger, and the conductive contact area is larger.
The height of the protruding structure 24 is 0.2 mm-0.8 mm; the height of the convex structure is larger than the thickness of the protective coating on the outer surface of the connecting angle plate 4, so that the convex structure 24 can be extruded and cut on the connecting angle plate 4 to remove the partial coating on the upper surface of the connecting angle plate 4, and a plurality of grooves 42 are processed on the upper surface of the connecting angle plate 4; the connection state projection 24 is accommodated in the groove 42 and presses the substrate of the groove 42 of the connection object 4, making good electrical contact with the non-protective-coated area in the groove 42 of the connection object 4.
The outer wall of joint portion 211 is hexagon structure, is the hexagon head of fastener standard definition promptly, is convenient for screw up the sleeve and cup joints with joint portion 211.
The low-impedance anticorrosive coating on the surface of the connecting device 2 is zinc alloy.
Example two: as shown in fig. 10-12, the same points of this embodiment as those of the embodiment are not repeated, but the difference is that the protruding structure 24 is a rectangular pyramid structure, and the cutting surface 241 is a triangular structure, which is sharper and requires less driving force.
The invention discloses a using method of an equipotential connecting device, which comprises the following steps,
step S1, the mounting hole 41 of the connecting angle plate 4 is placed on the base 3 after passing through the cylindrical connecting part 31;
step S2, after the tightening sleeve on the driving tool is sleeved with the clamping portion 211 of the connection device 2, the driving tool is turned on to apply a certain downward pressure and drive the connection device 2 to rotate relative to the base 3, and the external thread 311 matched with the thread coupling portion 222 is tapped on the surface of the cylindrical connection portion 31 during the rotation of the thread forming portion 221; meanwhile, the protruding structures 24 on the bearing surfaces 23 extrude and cut the upper surface of the connection angle plate 4 to remove the local protective coating on the upper surface, and a plurality of grooves 42 are processed on the upper surface of the connection angle plate 4, and the driving tools are the existing electric torque wrench, pneumatic wrench, torque wrench and the like.
The invention discloses a battery pack with an equipotential connecting device, which comprises a battery pack body 5, wherein the battery pack body 5 comprises a box body 51, a box cover 52, a connector bracket 53, a battery 54 and a connecting device 2, the box body 51 is of a hollow top opening structure, the battery 54 is arranged in the box body 51, the box cover 52 is arranged at an opening above the box body 51, and the connector bracket 53 is connected between the box body 51 and the box cover 52; the box body 51 is provided with an equipotential line 511 which is in equipotential connection with a vehicle body, the bottom of the inner wall of the box body 51 is provided with a connecting pin 512, the inner side of the connector bracket 53 is provided with a connecting angle plate 4, the connecting angle plate 4 is provided with a mounting hole for the connecting pin 512 to pass through, and the thread forming part 221 of the connecting device 2 can be used for tapping an external thread which is in matched connection with the thread coupling part 222 on the connecting pin 512; the outer surfaces of the box body 51 and the connector support 52 are provided with a protective coating with poor conductivity, the connector support 52 is partially exposed outside the area enclosed by the box body 51 and the box cover 52, and the connector support 52 needs to establish an equipotential connection with the box body 51. The box body 51 is provided with a connecting pin 512, the connecting angle plate 4 at the inner side of the connector bracket 53 is fixedly arranged on the box body 51 through the connecting device 2, the connecting device 2 forms screw threads on the connecting pin 512 on site, and the connecting device 2 is respectively and electrically connected with the box body 51 and the connector bracket 53; the connecting device 2 realizes equipotential connection between the connector holder 53 and the box body 51 while fixing the connector holder 53; compared with the case 51 which is communicated with the connector bracket 53 through the equipotential wire harness and the additional fastening piece, the assembly process of the battery pack 5 is simplified, meanwhile, the part cost is reduced, and the arrangement space is saved.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent modifications made by the present invention and the contents of the drawings or directly or indirectly applied to the related technical fields are included in the scope of the present invention.
Claims (9)
1. An equipotential connecting device, comprising: the connecting device (2) is composed of a driving interface (21), a threaded connecting part (22), a pressure bearing face (23) and a protruding structure (24), the driving interface (21) is formed by integrally combining an upper clamping part (211) and a lower connecting ring (212), the shape of the outer wall of the clamping part (211) is coupled and matched with a screwing sleeve, and the lower surface of the lower connecting ring (212) is the pressure bearing face (23); the inner wall of the driving interface (21) is provided with a threaded connecting part (22), and the threaded connecting part (22) comprises a thread forming part (221) and a thread coupling part (222) which are sequentially arranged from bottom to top; the bottom of the pressure bearing face (23) is provided with a plurality of protruding structures (24);
the middle part of the upper surface of the base (3) is connected with a cylindrical connecting part (31); the connecting angle plate (4) is provided with a mounting hole (41) for the cylindrical connecting part (31) to pass through;
the thread forming part (221) can be used for tapping an external thread (311) matched and connected with the thread coupling part (222) on the outer wall of the cylindrical connecting part (31);
the connecting device (2) is made of metal with low resistivity, and a low-impedance anticorrosive coating is arranged on the surface of the connecting device; the outer surfaces of the base (3) and the connecting angle plate (4) are respectively provided with a protective coating with poor conductivity.
2. An equipotential connecting device according to claim 1, characterized in that: the circumferential direction of the thread forming part (221) is provided with a plurality of chip grooves (2211) at equal intervals.
3. An equipotential bonding apparatus according to claim 1, further comprising: the protruding structure (24) is composed of an arc-shaped face and a cutting face (241), the protruding structure (24) is arrayed on the pressure bearing face (23) in a collar shape by taking the axis of the driving interface (21) as a shaft, and the section extension line of the cutting face (241) passes through the axis of the driving interface (21).
4. An equipotential connecting device according to claim 1, characterized in that: the protruding structure (24) is of a rectangular pyramid structure, and the cutting face (241) of the protruding structure is of a triangular structure.
5. An equipotential connecting device according to claim 3 or 4, characterized in that: the height of the protruding structure (24) is 0.2 mm-0.8 mm; the height of the angle plate is larger than the thickness of the protective coating on the outer surface of the connecting angle plate (4).
6. An equipotential bonding apparatus according to claim 1, further comprising: the outer wall of the clamping portion (211) is of a hexagonal structure.
7. An equipotential connecting device according to claim 1, characterized in that: the low-impedance anticorrosive coating on the surface of the connecting device (2) is zinc alloy.
8. An application method of an equipotential connecting device is characterized in that: comprises the following steps of (a) carrying out,
step S1, mounting holes (41) on the connecting angle plates (4) are placed on the base (3) after passing through the cylindrical connecting parts (31);
step S2, after a screwing sleeve on a driving tool is sleeved with a clamping portion (211) of a connecting device (2), the driving tool is started to apply certain downward pressure and drive the connecting device (2) to rotate relative to a base (3), and an external thread (311) matched and connected with a thread coupling portion (222) is tapped on the surface of a cylindrical connecting portion (31) in the rotating process of a thread forming portion (221); meanwhile, the convex structures (24) on the pressure bearing surfaces (23) extrude and cut the upper surface of the connecting angle plate (4) to remove the partial protective coating on the upper surface, and a plurality of grooves (42) are processed on the upper surface of the connecting angle plate (4).
9. A battery pack with an equipotential connecting device is characterized in that: the battery pack comprises a battery pack body (5), wherein the battery pack body (5) comprises a box body (51), a box cover (52), a connector support (53), a battery (54) and a connecting device (2), the box body (51) is of a hollow top opening structure, the battery (54) is arranged in the box body (51), the box cover (52) is arranged at an opening above the box body (51), and the connector support (53) is connected between the box body (51) and the box cover (52); the box body (51) is provided with an equipotential line (511) which is in equipotential connection with a vehicle body, the bottom of the inner wall of the box body (51) is provided with a connecting pin (512), the inner side of the connector support (53) is provided with a connecting angle plate (4), the connecting angle plate (4) is provided with a mounting hole for the connecting pin (512) to pass through, and a thread forming part (221) of the connecting device (2) can be used for tapping an external thread which is matched and connected with the thread coupling part (222) on the connecting pin (512); and protective coatings with poor conductivity are arranged on the outer surfaces of the box body (51) and the connector bracket (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210249557.3A CN114628853A (en) | 2022-03-15 | 2022-03-15 | Equipotential connecting device, using method and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210249557.3A CN114628853A (en) | 2022-03-15 | 2022-03-15 | Equipotential connecting device, using method and battery pack |
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| Publication Number | Publication Date |
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| CN114628853A true CN114628853A (en) | 2022-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210249557.3A Pending CN114628853A (en) | 2022-03-15 | 2022-03-15 | Equipotential connecting device, using method and battery pack |
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|---|---|---|---|---|
| US3331272A (en) * | 1965-05-24 | 1967-07-18 | Illinois Tool Works | Thread forming nut and tapered stud |
| CH608575A5 (en) * | 1974-06-11 | 1979-01-15 | Bergner Fa R | Self-tapping screw and thread-rolling process for this screw |
| US20080146074A1 (en) * | 2006-12-15 | 2008-06-19 | Gunter Deisenhofer | Electrical connector element |
| CN201207438Y (en) * | 2008-05-14 | 2009-03-11 | 东莞阳天电子科技有限公司 | Conducting connection structure of same electric level |
| US20140354043A1 (en) * | 2012-01-20 | 2014-12-04 | Labinal Power Systems | Connection, method, equipotential shunt connection and equipotential bonding current return network in a non-conductive architecture |
| CN110439904A (en) * | 2019-07-19 | 2019-11-12 | 苏州中新精密工业有限公司 | A kind of nut and its production technology |
| CN212342745U (en) * | 2020-06-29 | 2021-01-12 | 蜂巢能源科技有限公司 | Power battery pack upper and lower shell equipotential connecting device and battery pack |
| CN215165525U (en) * | 2021-02-05 | 2021-12-14 | 冯何松 | Sawtooth-shaped tubular pile quick connector |
| CN215933749U (en) * | 2021-09-28 | 2022-03-01 | 的卢技术有限公司 | Battery pack shell with equipotential connecting device |
-
2022
- 2022-03-15 CN CN202210249557.3A patent/CN114628853A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3331272A (en) * | 1965-05-24 | 1967-07-18 | Illinois Tool Works | Thread forming nut and tapered stud |
| CH608575A5 (en) * | 1974-06-11 | 1979-01-15 | Bergner Fa R | Self-tapping screw and thread-rolling process for this screw |
| US20080146074A1 (en) * | 2006-12-15 | 2008-06-19 | Gunter Deisenhofer | Electrical connector element |
| CN201207438Y (en) * | 2008-05-14 | 2009-03-11 | 东莞阳天电子科技有限公司 | Conducting connection structure of same electric level |
| US20140354043A1 (en) * | 2012-01-20 | 2014-12-04 | Labinal Power Systems | Connection, method, equipotential shunt connection and equipotential bonding current return network in a non-conductive architecture |
| CN110439904A (en) * | 2019-07-19 | 2019-11-12 | 苏州中新精密工业有限公司 | A kind of nut and its production technology |
| CN212342745U (en) * | 2020-06-29 | 2021-01-12 | 蜂巢能源科技有限公司 | Power battery pack upper and lower shell equipotential connecting device and battery pack |
| CN215165525U (en) * | 2021-02-05 | 2021-12-14 | 冯何松 | Sawtooth-shaped tubular pile quick connector |
| CN215933749U (en) * | 2021-09-28 | 2022-03-01 | 的卢技术有限公司 | Battery pack shell with equipotential connecting device |
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