CN217307980U - Laser radar cover curved surface circuit connection structure - Google Patents
Laser radar cover curved surface circuit connection structure Download PDFInfo
- Publication number
- CN217307980U CN217307980U CN202220539462.0U CN202220539462U CN217307980U CN 217307980 U CN217307980 U CN 217307980U CN 202220539462 U CN202220539462 U CN 202220539462U CN 217307980 U CN217307980 U CN 217307980U
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- China
- Prior art keywords
- conductive silver
- curved surface
- thick liquid
- laser radar
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 56
- 229910052709 silver Inorganic materials 0.000 claims abstract description 31
- 239000004332 silver Substances 0.000 claims abstract description 31
- 239000007788 liquid Substances 0.000 claims abstract description 29
- 239000000853 adhesive Substances 0.000 claims abstract description 10
- 230000001070 adhesive effect Effects 0.000 claims abstract description 10
- 230000005611 electricity Effects 0.000 claims abstract description 3
- 239000011347 resin Substances 0.000 claims 2
- 229920005989 resin Polymers 0.000 claims 2
- 239000012528 membrane Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000012797 qualification Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 6
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000007650 screen-printing Methods 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
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- Combinations Of Printed Boards (AREA)
Abstract
The utility model belongs to the technical field of the laser radar cover, a laser radar cover curved surface circuit connection structure is provided, this laser radar cover has concave surface and flexible line way in a curved surface, the ITO rete has on the concave surface in the curved surface, conductive silver thick liquid circuit has been plated on the ITO rete, the ITO rete is connected with conductive silver thick liquid circuit electricity, flexible line way has the anisotropic conductive adhesive with the junction of conductive silver thick liquid circuit, two connection feet of flexible line way board are through anisotropic conductive adhesive and conductive silver thick liquid circuit intercommunication. The utility model has the advantages of directly will realize through attached machine that flexible circuit board direct electric connection is on curved surface conductive silver thick liquid circuit, has both guaranteed the adhesion of flexible circuit board and conductive silver thick liquid circuit and has switched on, has simplified the process again, has improved the qualification rate, can also stabilize production.
Description
Technical Field
The utility model belongs to the technical field of the laser radar cover, a laser radar cover curved surface circuit connection structure and manufacturing method are related to.
Background
Along with the development of automobile networking and intellectualization, the intelligent driving automobile has increased demands for laser radar, millimeter wave radar, cameras and the like, and the corresponding laser radar cover plate and the like have the functions of deicing and demisting. In order to realize deicing and demisting, the ITO is electrified to be heated usually, the ITO is electrified to be heated through the conductive silver paste circuit, the flexible circuit board (also called FPC) is connected with the silver paste circuit, increase the conductive PIN foot when generally adopting to mould plastics now, the PIN foot is connected with the ITO conductive silver line, the mode of other end welding FPC realizes, increase the PIN foot when moulding plastics like this, and use FPC to adopt the mode of soldering with welding equipment adoption tin welding with the wire welding on the PIN foot, here need do certain shielding treatment in the welding department in order to prevent that the welding department is difficult to be by the oxidation, there is the problem of the low technology complicacy of yield, the qualification rate is relatively low, and easy broken string.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem, be to prior art's current situation, and provide a laser radar cover curved surface circuit connection structure and preparation method, can realize adhering the requirement of flexible circuit board on curved surface laser radar cover silver thick liquid circuit and switch on the circuit.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a laser radar cover curved surface circuit connection structure, its characterized in that, this laser radar cover have a curved surface inner concave surface and flexible line way, the curved surface inner concave surface on have the ITO rete, the ITO rete on plated electrically conductive silver thick liquid circuit, the ITO rete is connected with electrically conductive silver thick liquid circuit electricity, the junction of flexible line way and electrically conductive silver thick liquid circuit have an anisotropic conductive adhesive, two connection feet of flexible line way are through anisotropic conductive adhesive and electrically conductive silver thick liquid circuit intercommunication.
In the curved surface circuit connection structure of the laser radar cover, the conductive silver paste circuit is provided with two connecting contacts, and the two connecting contacts are positioned on the same horizontal line.
In the curved surface circuit connection structure of the laser radar cover, the thickness of the ITO film layer is 100nm, and the resistance of the ITO film layer is 100 omega.
In a foretell laser radar cover curved surface circuit connection structure, the thickness of electrically conductive silver thick liquid circuit be 10um, the resistance of electrically conductive silver thick liquid circuit is 5 omega.
In foretell laser radar cover curved surface circuit connection structure, this laser radar cover still including an attached machine and with the curved surface in concave surface shape assorted profile modeling base, the attached machine on have a curved surface pressure head, the laser radar cover is placed and is made two connecting contacts on the electrically conductive silver thick liquid circuit be in same water flat line at the profile modeling base, the anisotropic electrically conductive glue attach behind the electrically conductive silver thick liquid circuit to make two connecting pins of flexible line board and two connecting contacts intercommunication of electrically conductive silver thick liquid circuit through the curved surface pressure head.
A manufacturing method of a curved surface circuit connection structure of a laser radar cover is characterized by comprising the following steps:
firstly, plating an ITO film layer on a radar cover material in a sputtering or evaporation coating mode; the thickness of the ITO film layer is about 100nm, and the conductive resistance of the ITO film layer is within 100 omega;
step two, printing a conductive silver paste circuit on the ITO film layer of the laser radar cover by using a 250-mesh screen printing plate, wherein the thickness of the conductive silver paste circuit is about 10 mu m, and the resistance of the conductive silver paste circuit is about 5 omega;
thirdly, placing the laser radar cover processed in the second step into a profiling base of an attaching machine, and ensuring that two end points of two connecting contacts of the conductive silver paste circuit are positioned on the same horizontal line when the profiling base is designed;
after the laser radar cover is placed, using low-temperature anisotropic conductive adhesive to attach the laser radar cover to a conductive silver paste circuit of the laser radar cover, wherein the attaching pressure is about 0.4Mpa, and the temperature is about 115 ℃;
putting the laser radar cover into a profiling base of a constant-temperature hot press, and connecting the laser radar cover with a flexible circuit board by using a curved surface pressure head of an attaching machine, wherein the pressure is about 2Mpa, and the temperature is about 130 ℃;
and step six, after connection, a universal meter is used for measuring whether the two ends of the positive electrode and the negative electrode of the flexible circuit board are in a conducting state.
In the manufacturing method of the laser radar cover curved surface circuit connection structure, the curved surface pressure head of the attaching machine has a radian similar to that of the curved surface concave surface, and the profiling base enables the two connection contacts on the conductive silver paste circuit to be located on the same horizontal line.
Compared with the prior art, the utility model has the advantages of directly will realize through attached machine that flexible circuit board direct current connects on the conductive silver thick liquid circuit of curved surface, both guaranteed the adhesion of flexible circuit board with conductive silver thick liquid circuit and switched on, simplified the process again, improved the qualification rate, can also stabilize production.
Drawings
FIG. 1 is a schematic diagram of the curved circuit connection structure of the laser radar cover;
fig. 2 is a schematic view of the attachment state of the curved surface circuit connection structure of the laser radar cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be understood that the terms "center", "horizontal", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the invention.
In the figure; a laser radome 100; a curved concave surface 101; a flexible wiring board 200; a connecting leg 201; an ITO film layer 300; a conductive silver paste line 400; a connection contact 401; anisotropic conductive adhesive 500; an attaching machine 600; a curved indenter 700.
As shown in fig. 1 and fig. 2, the curved circuit connection structure of the laser radar cover, the laser radar cover 100 has a curved inner concave surface 101 and a flexible circuit board 200, the curved inner concave surface 101 has an ITO film 300, where the ITO film 300 is actually indium tin oxide, for conducting heating, a conductive silver paste circuit 400 is plated on the ITO film 300, the ITO film 300 is electrically connected to the conductive silver paste circuit 400, for preventing breaking and disconnection after connection, the conductive silver paste circuit 400 has two connection contacts 401, the two connection contacts 401 are on the same horizontal line, here, the connection between the flexible circuit board 200 and the conductive silver paste circuit 400 in this patent has an anisotropic conductive adhesive 500, the two connection pins 201 of the flexible circuit board 200 are connected to the conductive silver paste circuit 400 through the anisotropic conductive adhesive 500, for making more efficient heating effect, the thickness of the ITO film 300 is 100nm, the resistance of ITO rete 300 is 100 omega, the thickness of electrically conductive silver thick liquid circuit 400 is 10um, the resistance of electrically conductive silver thick liquid circuit 400 is 5 omega, laser radar cover 100 still including an attached machine 600 and with the curved surface in concave surface 101 shape assorted profile modeling base, curved surface pressure head 700 has on the attached machine 600, laser radar cover 100 places makes two connecting contact 401 be in same water flat line on the electrically conductive silver thick liquid circuit 400 at the profile modeling base, the conductive glue 500 of incoherence is attached behind electrically conductive silver thick liquid circuit 400, and make two connecting foot 201 of flexible line board 200 and two connecting contact 401 of electrically conductive silver thick liquid circuit 400 communicate through curved surface pressure head 700.
During manufacturing, firstly, an ITO film layer 300 is plated on a radar cover material in a sputtering or evaporation film plating mode; the thickness of the ITO film layer 300 is about 100nm, the conductive resistance of the ITO film layer 300 is within 100 omega, then a 250-mesh screen printing plate is adopted to print a conductive silver paste circuit 400 on the surface of the ITO film layer 300 of the laser radar cover 100, wherein the thickness of the conductive silver paste circuit 400 is about 10 mu m, and the resistance of the conductive silver paste circuit 400 is about 5 omega; placing the laser radar cover 100 processed in the second step into a profiling base of an attaching machine 600, ensuring that two end points of two connecting contacts 401 of a conductive silver paste circuit 400 are positioned on the same horizontal line when the profiling base is designed, wherein a curved surface pressure head 700 of the attaching machine 600 has a radian similar to that of a curved surface inner concave surface 101, enabling the two connecting contacts 401 on the conductive silver paste circuit 400 to be positioned on the same horizontal line by the profiling base, using low-temperature anisotropic conductive adhesive 500 to be attached to the conductive silver paste circuit 400 of the laser radar cover 100 after the laser radar cover 100 is placed, wherein the attaching pressure is about 0.4Mpa and the temperature is about 115 ℃, placing the laser radar cover 100 into the profiling base of a constant-temperature hot press, and using the curved surface pressure head 700 of the attaching machine 600 to be connected with a flexible circuit board 200, and the pressure is about 2Mpa and the temperature is about 130 ℃; whether the positive negative pole both ends of flexible circuit board are the conducting state is measured to use the universal meter after connecting, realize with flexible circuit board direct electric connection on curved surface conductive silver thick liquid circuit 400, both guaranteed flexible circuit board and conductive silver thick liquid circuit 400's adhesion and switch on, simplified the process again, improved the qualification rate, can also stabilize production.
It is noted that the description herein of "first," "second," "a," etc. is for descriptive purposes only and is not intended to indicate or imply relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. The terms "connected," "fixed," and the like are to be construed broadly, e.g., "fixed" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (5)
1. The utility model provides a laser radar cover curved surface circuit connection structure, its characterized in that, this laser radar cover have a curved surface inner concave surface and flexible line way board, the curved surface inner concave surface on have the ITO rete, ITO membrane face on plated electrically conductive silver thick liquid circuit, the ITO rete is connected with electrically conductive silver thick liquid circuit electricity, the junction of flexible line way board and electrically conductive silver thick liquid circuit have an anisotropic nature conducting resin, two connecting feet of flexible line way board are through anisotropic nature conducting resin and electrically conductive silver thick liquid circuit intercommunication.
2. The electrical connection structure of claim 1, wherein the conductive silver paste trace has two connecting contacts, and the two connecting contacts are located on the same horizontal line.
3. The electrical connection structure of claim 1 or 2, wherein the thickness of the ITO film layer is 100nm, and the resistance of the ITO film layer is 100 Ω.
4. The structure of claim 3, wherein the conductive silver paste line has a thickness of 10um and a resistance of 5 Ω.
5. The electrical connection structure for a curved surface of a lidar cover according to claim 4, further comprising an attaching machine and a profiling base matching with the shape of the concave surface in the curved surface, wherein the attaching machine has a curved surface pressing head, the lidar cover is placed on the profiling base such that the two connecting contacts on the conductive silver paste line are located at the same horizontal line, and the anisotropic conductive adhesive is attached to the conductive silver paste line and then connects the two connecting pins of the flexible printed circuit board with the two connecting contacts on the conductive silver paste line through the curved surface pressing head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220539462.0U CN217307980U (en) | 2022-03-11 | 2022-03-11 | Laser radar cover curved surface circuit connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220539462.0U CN217307980U (en) | 2022-03-11 | 2022-03-11 | Laser radar cover curved surface circuit connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217307980U true CN217307980U (en) | 2022-08-26 |
Family
ID=82934958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220539462.0U Active CN217307980U (en) | 2022-03-11 | 2022-03-11 | Laser radar cover curved surface circuit connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217307980U (en) |
-
2022
- 2022-03-11 CN CN202220539462.0U patent/CN217307980U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: NINGBO MINTH AUTOMOTIVE PARTS RESEARCH&DEVELOPMENT Co.,Ltd. Assignor: NINGBO XINTAI MACHINERY Co.,Ltd. Contract record no.: X2023980053787 Denomination of utility model: A Curved Circuit Connection Structure for Lidar Radome Granted publication date: 20220826 License type: Common License Record date: 20231225 |
|
| EE01 | Entry into force of recordation of patent licensing contract |