CN219676913U - Wear-resistant circuit busbar for new energy automobile - Google Patents
Wear-resistant circuit busbar for new energy automobile Download PDFInfo
- Publication number
- CN219676913U CN219676913U CN202320758537.9U CN202320758537U CN219676913U CN 219676913 U CN219676913 U CN 219676913U CN 202320758537 U CN202320758537 U CN 202320758537U CN 219676913 U CN219676913 U CN 219676913U
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- CN
- China
- Prior art keywords
- resistant
- fire
- tape
- wear
- new energy
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- 230000009970 fire resistant effect Effects 0.000 claims abstract description 49
- 239000010445 mica Substances 0.000 claims abstract description 30
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 30
- 239000002131 composite material Substances 0.000 claims abstract description 27
- 239000000919 ceramic Substances 0.000 claims abstract description 26
- 239000004020 conductor Substances 0.000 claims abstract description 23
- 229920000098 polyolefin Polymers 0.000 claims abstract description 9
- 239000011241 protective layer Substances 0.000 claims abstract description 7
- 239000011214 refractory ceramic Substances 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 238000005253 cladding Methods 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 239000004945 silicone rubber Substances 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005452 bending Methods 0.000 abstract description 2
- 238000002791 soaking Methods 0.000 abstract 1
- 239000003365 glass fiber Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model discloses a wear-resistant loop busbar for a new energy automobile, which comprises a conductor inner core, wherein the outer surface of the conductor inner core is coated with a composite fire-resistant mica tape, the outer surface of the composite fire-resistant mica tape is coated with a fire-resistant ceramic tape, and the outer surface of the fire-resistant ceramic tape is coated with a polyolefin protective layer; compared with the prior art, the composite fire-resistant mica tape and the fire-resistant ceramic tape are arranged outside the conductor inner core, so that the fire resistance of the circuit busbar can be greatly improved, the good stable working performance can be kept in an environment of-60 ℃ to 300 ℃, meanwhile, the fire-resistant ceramic tape can be rapidly sintered into a hard ceramic shell at high temperature, and the fire-resistant ceramic shell can self-extinguish and not drip during combustion, so that the fire-resistant, fire-proof and waterproof protection effects can be achieved, the circuit safety is ensured, the polyolefin protective layer has good wear resistance, the inside of the circuit busbar can be effectively protected during bending, and the circuit busbar can pass a soaking voltage test.
Description
Technical Field
The utility model relates to the technical field of busbar, in particular to a wear-resistant loop busbar for a new energy automobile.
Background
The busbar refers to a copper bar or an aluminum bar connected with a total switch in an electric cabinet and a switch in each shunt circuit in a power supply system, and the surface of the busbar is subjected to insulation treatment and mainly used as a lead. In the field of new energy automobiles, high-voltage power distribution needs to be connected by using a busbar, and the busbar used for communicating loops between each device and the battery is a loop busbar.
In the prior art, the busbar generally adopts the following schemes:
firstly, a heat shrinkage tube is sleeved outside a metal conductor, and the heat shrinkage tube has the defects of flame retardance, dripping during combustion, blackening at a high temperature of 125 ℃, embrittlement at a low temperature of-40 ℃ and the like in use, as disclosed in a busbar for alternating current metal closed switch equipment with a publication number of CN 202120628U;
secondly, PA (polyamide, nylon) is arranged outside the metal conductor to insulate and protect the surface of the busbar, but nylon has the defects of high extrusion cost, flame retardance and dripping during combustion, so the utility model provides the wear-resistant loop busbar for the new energy automobile.
Disclosure of Invention
The utility model aims to provide a wear-resistant loop busbar for a new energy automobile, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a wear-resisting formula return circuit busbar for new energy automobile, includes the conductor inner core, and the surface cladding of conductor inner core has compound fire-resistant mica tape, and the surface cladding of compound fire-resistant mica tape has fire-resistant ceramic tape, and the surface cladding of fire-resistant ceramic tape has the polyolefin inoxidizing coating.
As a preferable technical scheme of the utility model, the composite fire-resistant mica tape is spirally wrapped on the outer surface of the conductor inner core, and the overlapping rate of the wrapped composite fire-resistant mica tape is less than 70%.
As a preferable technical scheme of the utility model, the composite fire-resistant mica tape adopts a three-in-one composite mica tape which is prepared by compounding glass fiber, mica and polyethylene terephthalate.
As a preferred embodiment of the present utility model, the conductor core is made of one of 1060-H14 aluminum, 1060-H24 aluminum, T2 red copper or 6101 aluminum alloy.
As a preferable technical scheme of the utility model, the refractory ceramic tape is spirally wrapped on the outer surface of the composite refractory mica tape, and the overlapping rate of the wrapped refractory ceramic tape is less than 70%.
As a preferable technical scheme of the utility model, the thickness of the refractory ceramic tape is 0.05-0.3 mm, the thickness of the composite refractory mica tape is 0.05-0.3 mm, and the thickness of the polyolefin protective layer is 0.8-1.5 mm.
As a preferred technical scheme of the utility model, the refractory ceramic belt adopts a ceramic silicon rubber composite belt.
As a preferable technical scheme of the utility model, both ends of the conductor inner core are provided with the connecting end seats, the connecting end seats are provided with mounting holes, and the nut pieces are fixedly arranged in the mounting holes.
As a preferable technical scheme of the utility model, the inner surface of the nut member is provided with a threaded hole, and the outer surface of the nut member is provided with an anti-skid convex line.
As an optimal technical scheme of the utility model, the outer ring of the nut piece is of a step shaft-shaped structure, and a convex ring is arranged on the outer surface of one side of the nut piece, which is far away from the connecting end seat.
Compared with the prior art, the utility model has the beneficial effects that:
according to the wear-resistant circuit busbar for the new energy automobile, the composite fire-resistant mica tape and the fire-resistant ceramic tape are arranged outside the conductor inner core, so that the fire resistance of the circuit busbar can be greatly improved, the good stable working performance can be kept in an environment of-60 ℃ to 300 ℃, meanwhile, the fire-resistant ceramic tape can be quickly sintered into a hard ceramic shell at high temperature, and can self-extinguish and not drip during combustion, so that the fire-resistant, fire-proof and waterproof protection effects can be achieved, the circuit safety is ensured, the polyolefin protective layer has good wear resistance, the inside of the circuit busbar can be effectively protected when the circuit busbar is bent, and the immersion voltage test can be passed.
Additional features and advantages of the utility model will be set forth in the detailed description which follows.
Drawings
FIG. 1 is a cross-sectional view of the present utility model;
FIG. 2 is a schematic diagram of the overall structure of the present utility model;
FIG. 3 is a side cross-sectional view of the present utility model at the connection end mount;
in the figure: 100. a conductor core; 110. a connecting end seat; 120. a nut member; 111. a mounting hole; 121. an anti-slip relief; 122. a threaded hole; 123. a convex ring; 200. composite fire-resistant mica tape; 300. a refractory ceramic tape; 400. a polyolefin protective layer.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1, in a first embodiment, a wear-resistant circuit busbar for a new energy automobile is provided, including a conductor inner core 100, wherein the conductor inner core 100 adopts one of 1060-H14 aluminum, 1060-H24 aluminum and 6101 aluminum alloy, and also can adopt T2 red copper, the outer surface of the conductor inner core 100 is coated with a composite fire-resistant mica tape 200, the thickness of the composite fire-resistant mica tape 200 is 0.05-0.3 mm, the composite fire-resistant mica tape 200 is spirally wrapped on the outer surface of the conductor inner core 100, the overlapping rate of the wrapped composite fire-resistant mica tape 200 is less than 70%, overlapping wrapping can be omitted, the outer surface of the composite fire-resistant mica tape 200 is coated with a fire-resistant ceramic tape 300, the thickness of the fire-resistant ceramic tape 300 is 0.05-0.3 mm, the specific fire-resistant ceramic tape 300 can adopt a ceramic silicon rubber composite tape, the fire-resistant ceramic tape 300 is spirally wrapped on the outer surface of the composite mica tape 200, the overlapping rate of the wrapping is less than 70%, the fire-resistant ceramic tape 300 can not be overlapped, the outer surface of the fire-resistant ceramic tape 300 is wrapped with a thickness of 400 mm, and the fire-resistant layer is bent to be more than 0.5 mm, and the actual fire-resistant busbar is bent according to the actual shape, and the required fire-resistant busbar is bent, and has a better fire-resistant effect, and has a fire-resistant effect, and is bent; the composite fire-resistant mica tape 200 is a three-in-one composite mica tape prepared by compounding glass fiber, mica and polyethylene terephthalate, wherein the glass fiber can effectively enhance the tensile resistance of the busbar; the composite fire-resistant mica tape 200 and the fire-resistant ceramic tape 300 are arranged outside the conductor inner core 100, so that the fire resistance of the circuit busbar can be greatly improved, the good stable working performance can be kept in an environment of-60 ℃ to 300 ℃, meanwhile, the fire-resistant ceramic tape 300 can be rapidly sintered into a hard ceramic shell at high temperature, and the fire-resistant ceramic shell can be self-quenched and not dripped during combustion, so that the fire-resistant, fire-proof and waterproof protection effects can be well achieved, the circuit safety is ensured, the polyolefin protective layer 400 has good wear resistance, and the inside of the circuit busbar can be effectively protected during bending.
Through practical tests, the circuit busbar of the utility model can maintain good and stable working performance in the environment of-60 ℃ to 300 ℃ in terms of fire resistance; in terms of voltage resistance, in the immersion insulation test, the voltage can reach AC5kV and 60s (leakage current is less than 1 mA); in the aspect of corrosion resistance, the flame retardant self-extinguishing flame retardant is self-extinguishing in the combustion experiment and does not drip; compared with the traditional busbar sleeved with the heat shrinkage tube, the heat shrinkage tube has better fire resistance, and effectively reduces damage to personnel and property in the automobile caused by thermal runaway of the new energy automobile.
Example two
As an optimization scheme of the first embodiment, referring to fig. 1 to 3, in the second embodiment, two ends of a conductor inner core 100 are provided with connection end seats 110, the connection end seats 110 are provided with mounting holes 111, a nut member 120 is fixedly mounted in the mounting holes 111, and a threaded hole 122 is provided on an inner surface of the nut member 120.
In the conventional technology, it is generally required to simultaneously operate the screw and the nut on both sides of the connection terminal 110, and in the field of new energy automobiles, the total amount of the circuit busbar of each battery pack is large, so that the disassembly and assembly efficiency is inconvenient and the efficiency is low; in this embodiment, the nut member 120 is disposed on the mounting hole 111 of the connection end seat 110 of the circuit busbar, so that the nut at the back side is not required to be operated when the circuit busbar is dismounted, the nut member 120 is fixed in the mounting hole 111, an operator only needs to dismount the screw on one side to complete the dismounting work of the circuit busbar, the dismounting is more convenient, and the dismounting efficiency is improved.
The outer surface of the nut member 120 is provided with the anti-slip convex line 121, which can help to fix the nut member 120 in the mounting hole 111, and can also detach the nut member 120 when needed, the outer ring of the nut member 120 is of a step shaft-shaped structure, and the outer surface of one side of the nut member 120 far away from the connecting end seat 110 is provided with the convex ring 123, so that the operation of mounting or dismounting the nut member 120 is more facilitated by utilizing the convex ring 123.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a wear-resisting formula return circuit busbar for new energy automobile, its characterized in that includes conductor inner core (100), the surface cladding of conductor inner core (100) has compound fire-resistant mica tape (200), the surface cladding of compound fire-resistant mica tape (200) has fire-resistant ceramic tape (300), the surface cladding of fire-resistant ceramic tape (300) has polyolefin inoxidizing coating (400).
2. The wear-resistant circuit busbar for new energy automobiles according to claim 1, wherein the composite fire-resistant mica tape (200) is spirally wrapped on the outer surface of the conductor inner core (100), and the overlapping rate of the wrapped composite fire-resistant mica tape (200) is less than 70%.
3. The wear-resistant circuit busbar for a new energy automobile according to claim 1, wherein the conductor core (100) is one of 1060-H14 aluminum, 1060-H24 aluminum, T2 red copper or 6101 aluminum alloy.
4. The wear-resistant circuit busbar for new energy vehicles according to claim 1, wherein the refractory ceramic tape (300) is spirally wrapped on the outer surface of the composite refractory mica tape (200), and the overlapping rate of the wrapped refractory ceramic tape (300) is less than 70%.
5. The wear-resistant circuit busbar for new energy vehicles according to claim 1, wherein the thickness of the refractory ceramic tape (300) is 0.05-0.3 mm, the thickness of the composite refractory mica tape (200) is 0.05-0.3 mm, and the thickness of the polyolefin protective layer (400) is 0.8-1.5 mm.
6. The wear-resistant circuit busbar for new energy vehicles as set forth in claim 5, wherein the refractory ceramic tape (300) is a ceramic silicone rubber composite tape.
7. The wear-resistant circuit busbar for the new energy automobile according to claim 1, wherein the two ends of the conductor inner core (100) are respectively provided with a connecting end seat (110), the connecting end seats (110) are provided with mounting holes (111), and nut pieces (120) are fixedly mounted in the mounting holes (111).
8. The wear-resistant circuit busbar for a new energy automobile as claimed in claim 7, wherein the inner surface of the nut member (120) is provided with a threaded hole (122), and the outer surface of the nut member (120) is provided with an anti-slip ridge (121).
9. The wear-resistant circuit busbar for new energy vehicles according to claim 7, wherein the outer ring of the nut member (120) has a stepped shaft-like structure, and a convex ring (123) is provided on the outer surface of the side of the nut member (120) away from the connection terminal base (110).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320758537.9U CN219676913U (en) | 2023-04-08 | 2023-04-08 | Wear-resistant circuit busbar for new energy automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320758537.9U CN219676913U (en) | 2023-04-08 | 2023-04-08 | Wear-resistant circuit busbar for new energy automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219676913U true CN219676913U (en) | 2023-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320758537.9U Active CN219676913U (en) | 2023-04-08 | 2023-04-08 | Wear-resistant circuit busbar for new energy automobile |
Country Status (1)
| Country | Link |
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| CN (1) | CN219676913U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117393205A (en) * | 2023-10-26 | 2024-01-12 | 合肥华城材料科技有限责任公司 | New energy automobile high-voltage busbar containing metal armor |
-
2023
- 2023-04-08 CN CN202320758537.9U patent/CN219676913U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117393205A (en) * | 2023-10-26 | 2024-01-12 | 合肥华城材料科技有限责任公司 | New energy automobile high-voltage busbar containing metal armor |
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