CN220796331U - Multilayer composite structure hard copper bar cable assembly - Google Patents

Multilayer composite structure hard copper bar cable assembly Download PDF

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Publication number
CN220796331U
CN220796331U CN202322269826.5U CN202322269826U CN220796331U CN 220796331 U CN220796331 U CN 220796331U CN 202322269826 U CN202322269826 U CN 202322269826U CN 220796331 U CN220796331 U CN 220796331U
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China
Prior art keywords
copper bar
layer
cable assembly
insulating
bar cable
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CN202322269826.5U
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Chinese (zh)
Inventor
赵东伟
高剑
张志中
习冰寒
范家齐
张胜利
张富强
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China Aviation Optical Electrical Technology Co Ltd
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China Aviation Optical Electrical Technology Co Ltd
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Abstract

The utility model relates to a hard copper bar cable assembly with a multilayer composite structure, which comprises a first insulating layer, a first conducting layer, a second insulating layer, a second conducting layer, a third insulating layer, a third conducting layer, a fourth insulating layer, a fourth conducting layer and a fifth insulating layer which are distributed from top to bottom in a laminated manner, wherein a bonding layer for realizing connection and fixation of the two adjacent insulating layers and the conducting layer is also arranged between the adjacent insulating layers and the conducting layers; the central positioning hole extending along the thickness direction of the copper bar cable penetrates through the insulating layer, the bonding layer and the conducting layer which are arranged in a laminated mode, and is matched with the positioning pin to ensure the lamination precision of the copper bar cable with the multilayer distribution during hot pressing. The utility model sets the center positioning reference hole structure, improves the positioning precision of each layer during stacking, and effectively improves the lamination precision and quality of the product during hot pressing.

Description

Multilayer composite structure hard copper bar cable assembly
Technical Field
The utility model belongs to the technical field of copper bar cables, and particularly relates to a hard copper bar cable assembly with a multilayer composite structure.
Background
The cable assembly is applied to the fields of communication, new energy, industry and the like, and is required to be capable of realizing electric connection between electronic equipment systems, the traditional cable assembly is heavy in structure, complex in wiring mode and time-consuming to install, and the difficulty and cost for on-site wiring are greatly increased. The hard copper bar cable assembly has the advantages of high structural integration, simple and convenient structure, capability of realizing quick wire making in a small space, installation space saving, simplicity and rapidness in wire making, and wide application in the fields of 5G base stations, new energy batteries and the like with higher integration degree.
At present, when the hard copper bar assembly is pressed, the pressing precision is difficult to guarantee, and when the conductive points are more, the installation and the positioning are difficult, the installation efficiency is low, and the working efficiency is influenced.
Disclosure of Invention
In order to solve the problems, the utility model provides a multilayer composite structure hard copper bar cable assembly with a novel structure.
The aim and the technical problems of the utility model are realized by adopting the following technical proposal. The utility model provides a multilayer composite structure hard copper bar cable assembly, which comprises a first insulating layer, a first conducting layer, a second insulating layer, a second conducting layer, a third insulating layer, a third conducting layer, a fourth insulating layer, a fourth conducting layer and a fifth insulating layer which are distributed from top to bottom in a laminated manner, wherein a bonding layer for realizing connection and fixation of the two adjacent insulating layers and the conducting layer is also arranged between the adjacent insulating layers and the conducting layer; the central positioning hole extending along the thickness direction of the copper bar cable penetrates through the insulating layer, the bonding layer and the conducting layer which are arranged in a laminated mode, and is matched with the positioning pin to ensure the lamination precision of the copper bar cable with the multilayer distribution during hot pressing.
The aim and the technical problems of the utility model can be further realized by adopting the following technical measures.
In the multilayer composite structure hard copper bar cable assembly, two copper bars are arranged in one of the conductive layers, and an insulating piece is arranged between the two copper bars; the other conductive layers are provided with only one conductive copper bar.
The hard copper bar cable assembly of multilayer composite structure, the pin that is used for being connected with the adaptation connecting piece and switches on is all stretched out at every conductive copper bar both ends for the position that corresponds with the pin on the mounting panel that realizes this cable assembly is fixed is equipped with dodges the through-hole, and the fifth insulating layer stretches out there is the extension of protruding other insulating layers, and this extension can fill the clearance between pin and the mounting panel, prevents that connecting screw on the pin from being dropped by dodging the through-hole.
According to the multilayer composite structure hard copper bar cable assembly, the positions, corresponding to the pins, on the extending parts are also provided with the avoidance through holes, and the gaps between the pins and the extending parts do not allow the connecting screws to pass through.
The hard copper bar cable assembly with the multilayer composite structure is characterized in that at least one positioning part for realizing rapid positioning during installation of the cable assembly by being in concave-convex fit with the positioning structure on the installation plate is arranged on at least one extension part.
The positioning pin penetrating through the central positioning hole can be matched and positioned with the corresponding positioning hole on the mounting plate during mounting.
When the conducting layer is provided with the two copper bars, the central positioning hole penetrates through the insulating piece between the two copper bars, the diameter of the central positioning hole is larger than the gap between the two copper bars, and the two copper bars are bent at the central positioning hole in the direction deviating from the other copper bar; when the conducting layer is only provided with one copper bar, the central positioning hole penetrates through the copper bar, and an annular insulating piece is further arranged between the central positioning hole and the copper bar.
The positioning part is a positioning hole or a positioning groove.
In the foregoing hard copper bar cable assembly with a multilayer composite structure, the extending directions of at least two extending portions 91 are different, and the extending directions of the extending portions where the positioning holes and the positioning grooves are located are different.
In the foregoing hard copper bar cable assembly with a multilayer composite structure, an insulating member 12 is further disposed between the central positioning hole and the copper bar 11 of the conductive layer, so as to realize insulation and isolation between the copper bar 11 and the positioning pin 14.
In the multilayer composite structure hard copper bar cable assembly, the widths of the copper bars and the insulating pieces of the same conductive layer are kept constant at different positions in the extending direction.
In the multilayer composite structure hard copper bar cable assembly, the insulating piece and the insulating layer in the conducting layer are FR-4 epoxy plates; the bonding layer is PP prepreg.
Compared with the prior art, the utility model has obvious advantages and beneficial effects. By means of the technical scheme, the utility model can achieve quite technical progress and practicability, has wide industrial application value, and has at least the following advantages:
according to the multilayer composite structure hard copper bar cable assembly, the mounting and positioning structure is added on the copper bar, so that the lamination precision of the FR-4 epoxy board, the PP prepreg and the copper bar in multilayer hot pressing is improved. When the installation point positions are more, the copper bar assembly is difficult to install and position, and the copper bar is rapidly and accurately positioned by adding the positioning structure on the copper bar, so that the field installation difficulty is effectively reduced, and the installation efficiency is greatly improved. The copper bar accessory screw is easy to drop and drop into the inside of the case when being installed, so that the problem is avoided, the FR-4 epoxy plate is extended and filled in the gap around the screw installation hole, and the risk of dropping and losing the screw is effectively reduced.
The utility model realizes the conduction function of the multi-path circuit through the copper bars with the multi-layer composite structure, and creatively arranges two paths of copper bars on the same layer, thereby further improving the integration level of the copper bar circuit.
Drawings
FIG. 1 is a transverse cross-sectional view of a multilayer composite structured rigid copper bar cable assembly of the present utility model;
FIG. 2 is a top view of the present utility model with a first layer of FR-4 epoxy board removed;
FIG. 3 is a top view of the present utility model with a second layer of FR-4 epoxy board removed and a portion above it;
FIG. 4 is a top view of the present utility model with a third layer of FR-4 epoxy board removed and a portion above it;
FIG. 5 is a top view of the present utility model with a fourth layer of FR-4 epoxy board removed and a portion above it;
FIG. 6 is a top view of the multilayer composite structure rigid copper bar cable assembly of the present utility model;
FIG. 7 is a schematic diagram of the composition of a multilayer composite structure rigid copper bar cable assembly of the present utility model;
FIG. 8 is a schematic view of the installation of a multilayer composite structure rigid copper bar cable assembly of the present utility model;
FIG. 9 is a top view of the multilayer composite structure of the present utility model in an installed state of a rigid copper bar cable assembly;
fig. 10 is a schematic view of a copper bar shielding structure of a multilayer composite structure hard copper bar cable assembly according to the present utility model.
[ Main element symbols description ]
1 first insulating layer
2: a first conductive layer
3: second insulating layer
4: second conductive layer
5: third insulating layer
6: third conductive layer
7: fourth insulating layer
8: fourth conductive layer
9: fifth insulating layer
91: extension part
10 adhesive layer
11: copper bar
12: FR-4 epoxy board
13: center positioning hole
14: positioning pin
15: elastic conductive sheet
16: mounting plate
17: conductive paint spraying area
Detailed Description
In order to further describe the technical means and effects adopted by the utility model to achieve the preset aim, the following detailed description is given below of the specific implementation, structure, characteristics and effects of the multilayer composite structure hard copper bar cable assembly according to the utility model in combination with the accompanying drawings and the preferred embodiment.
Referring to fig. 1-10, which are schematic structural diagrams of each part of the multi-layer composite structure hard copper bar cable assembly according to the present utility model, the copper bar cable assembly includes a first insulating layer 1, a first conductive layer 2, a second insulating layer 3, a second conductive layer 4, a third insulating layer 5, a third conductive layer 6, a fourth insulating layer 7, a fourth conductive layer 8 and a fifth insulating layer 9 sequentially arranged from top to bottom. An adhesive layer 10 is further arranged between adjacent layers of the copper bar cable assembly, namely, the adhesive layer 10 is further arranged between the adjacent insulating layers and the conducting layers, and the adhesive layer 10 is used for realizing connection fixation between the adjacent insulating layers and the conducting layers. In this embodiment, the adhesive layer 10 is PP prepreg, but is not limited thereto. The insulating layer is an FR-4 epoxy board.
According to the utility model, the central positioning hole 13 penetrating through the copper bar cable is arranged along the thickness direction of the copper bar cable, and penetrates through each insulating layer, each bonding layer and each conducting layer along the thickness direction, so that when the layers of the copper bar cable are stacked, each insulating layer, each bonding layer and each conducting layer which are stacked and arranged can be connected together through the positioning pin 14 matched with the central positioning hole 13, the insulating layers and the conducting layers which are stacked and distributed can be rapidly positioned during stacking, dislocation of the insulating layers, the bonding layers and the conducting layers under the action of external force after stacking is completed can be prevented, and the lamination precision and the lamination quality of products formed by stacking the insulating layers, the bonding layers and the conducting layers during hot pressing are ensured.
In the embodiment of the utility model, one of the first conductive layer 2, the second conductive layer 4, the third conductive layer 6 and the fourth conductive layer 8 is provided with two copper bars 11, and an insulating part is arranged between the two copper bars; the other layers of the conductive layer include a copper bar 11. The central positioning hole penetrates through the copper bars 11 of each conductive layer, namely when the conductive layer only has one copper bar, the central positioning hole 13 penetrates through the copper bars 11, and when the conductive layer has two copper bars 11, the central positioning hole 11 is positioned between the two copper bars and penetrates through an insulating piece between the two copper bars.
In the embodiment of the utility model, the first conductive layer 2 comprises two copper bars 11 which are arranged in parallel, the two copper bars 11 can realize the conduction between two end points of two paths, and on the premise of not increasing the number of layers of the copper bar cable assembly, the circuit transmission capacity is increased, and the integration level of the copper bar cable is improved. Be equipped with between two copper bars 11 and be used for realizing insulating isolation insulating part and be FR-4 epoxy board 12, because the internal diameter of center locating hole 13 is greater than the interval between two copper bars 11 for copper bar 11 in this place is dodged center locating hole 13 and outside bending formation bending part, and the bending part bending direction of two copper bars 11 is opposite, and both are convex, and the convex direction of circular arc is kept away from center locating hole 13, and still has FR-4 epoxy board 12 between this center locating hole 13 and two copper bars 11. In this embodiment, the width of the copper bar bending portion is consistent with the width of other parts in the extending direction of the copper bar bending portion, so that the width of the copper bar in the extending direction is kept constant, and the conductivity of each part is consistent. Preferably, the width of the FR-4 epoxy board 12 around the center positioning hole 13 is consistent with the width of the FR-4 epoxy board 12 without the center positioning hole 13.
In the embodiment of the present utility model, the two copper bars 11 of the first conductive layer 2 are respectively provided with an insulating member for realizing insulation protection on a side facing away from the other copper bar, and preferably, the insulating member is an FR-4 epoxy board 12, so that the copper bars of the conductive layer are all covered and protected by the FR-4 epoxy board 12 in the circumferential direction. In this embodiment, the width of the FR-4 epoxy board 12 on the side of the copper bar facing away from the other copper bar in the extending direction of the copper bar 11 is kept constant, and the shape is kept consistent with the shape of the outer side of the copper bar on the side where it is located.
The second conductive layer 4, the third conductive layer 6 and the fourth conductive layer 8 of the present utility model each comprise a copper bar and insulating members located on two sides of the copper bar, and in this embodiment, the insulating members are FR-4 epoxy boards, that is, the conductive layers are all structures in which two FR-4 epoxy boards sandwich one copper bar. The central positioning hole 13 penetrates through the copper bars in the second conductive layer 4, the third conductive layer 6 and the fourth conductive layer 8, so as to realize direct positioning of the copper bars. And annular insulating layers supported by the FR-4 epoxy plates are also arranged between the central positioning hole 13 and the copper bars of the second conductive layer 4, the third conductive layer 6 and the fourth conductive layer 8. And the copper bar provided with the central positioning hole 13 is protruded outwards at the central positioning hole 13 to form an arc avoidance part, so that the transmission performance of the copper bar is not changed on the premise of meeting the setting of the central positioning hole 13. Preferably, the copper bar provided with the central positioning hole 13 is symmetrical to the arc avoidance parts protruding towards two sides, and the sum of the widths of the two arc avoidance parts is consistent with the width of the copper bar where the central positioning hole is not arranged. And the widths of the FR-4 epoxy plates at the two sides of the copper bar in the extending direction of the copper bar are kept constant, and the shapes of the FR-4 epoxy plates are kept consistent with the shapes of the side surfaces of the copper bar.
In the embodiment of the present utility model, the two copper bars of the first conductive layer 2 form a via 1 and a via 2 for transmitting an electrical signal, and the two ends of the via 1 and the via 2 are respectively formed with a connection pin 18 so as to be conductive with an adapting connector. Two grounding pins 19 are respectively formed at two ends of the copper bar of the second conductive layer 4 and are used for realizing the grounding function of the copper bar of the layer. The copper bars of the third conductive layer 6 form a via 3 for transmitting electrical signals, and the two ends of the via 3 form a connection pin 18 for connection with a mating connector. And two ends of the copper bar of the fourth conductive layer 8 are respectively provided with a grounding pin 19 for realizing the grounding function of the copper bar of the layer. According to the utility model, the conduction function of 5 paths is realized through the four-layer copper bar structure, and two paths are arranged in the first conductive layer copper bar, so that the copper bar integration level is further improved.
In order to realize quick and accurate positioning of the copper bar cable on the mounting plate 16, the copper bar cable is positioned in a matched manner with a corresponding positioning hole on the mounting plate 16 through a positioning pin penetrating through the center positioning hole, and at least one extending part 91 protruding out of other layers is arranged on an insulating layer at the bottommost layer of the copper bar cable during mounting, and a positioning part for realizing positioning of a concave-convex structure in a matched manner with a positioning structure on the mounting plate 16 is arranged on the at least one extending part 91. The insulation layer at the bottommost layer of the copper bar cable is a first insulation layer or a fifth insulation layer, and in this embodiment, the fifth insulation layer is at the bottommost layer, and an extension 91 is provided thereon. The positioning structure on the mounting plate 16 is a positioning pin, the positioning portion provided on the extension portion 91 is a positioning hole 911 or a positioning slot 912 for positioning with the positioning pin, the positioning hole may be a through hole on the extension portion 91, the extending direction of the through hole is consistent with the thickness direction of the copper bar cable, and the positioning slot 912 may be an arc slot located on one side of the extension portion and facing the positioning pin.
In the embodiment of the present utility model, two extending portions 91 with different extending directions are respectively disposed on two sides of the extending direction of the fifth insulating layer 9, where one of the two extending portions 91 on one side is provided with a positioning hole 911, and the other one is provided with a positioning slot 912. Preferably, the centers of projection of the positioning hole 911, the positioning groove 912 and the center positioning hole 13 on the mounting plate are not collinear. When the copper bar cable is installed, three locating pins on the installation plate penetrate through three locating points (locating holes 911, locating grooves 912 and central locating holes 13), the copper bar cable is accurately located on the installation plate, the copper bar cable and the installation plate are quickly and accurately located when the copper bar is installed, the installation time is saved, and the installation efficiency is greatly improved. The utility model is provided with the three-point positioning and mounting structure, and when the mounting point positions are more, the quick and accurate positioning of the copper bar cable and the mounting plate is realized.
The position on the mounting plate 16 corresponding to the copper bar pins is provided with avoidance holes 161 so as to realize the connection and fixation of the pins and the adapting connection parts through the connection screws 20. When the connection between the pins and the adapting connection portion is fixed, the connection screw 20 easily falls through the gap between the edge of the pin and the avoidance hole 161 of the mounting plate 16, and enters the interior of the chassis, so that the connection screw 20 is difficult to take out, and in order to prevent the connection screw 20 from falling, the extension portion 91 of the fifth insulating layer of the present utility model is distributed below the pins of each copper bar, so that the gap between the copper bar pins and the mounting plate can be filled, and the position of the extension portion 91 corresponding to the copper bar pins is provided with the through holes 913 corresponding to the copper bar pin connection fixing portion, so that the pins and the adapting connection portion are connected and fixed, and the gap between the extension portion 91 and the copper bar pins and the gap between the extension portion 91 and the mounting plate 16 are smaller than the minimum gap in which the connection screw 20 can fall, thereby preventing the connection screw 20 from falling into the chassis.
The utility model extends the bottom FR-4 board and realizes the function of preventing the screw from falling off.
The outer surface of the copper bar cable is also sprayed with the metal conductive paint, and the metal conductive paint enables all parts of the surface of the copper bar cable to be conducted, namely, the copper bar cable is surrounded by the completely-sealed conductive shield, so that the copper bar cable has a good shielding effect. And the surface of the metal conductive paint is also fixed with an elastic conductive sheet 15, and the shielding conductive sheet 15 is used for realizing the whole shielding grounding of the copper bar cable so as to avoid electromagnetic interference. In an embodiment, the elastic conductive sheet 15 is adhered to the paint spraying surface of the top layer of the copper bar cable, and is used for being in contact conduction with an adaptive shielding cover plate, so as to realize a shielding function. In other embodiments of the present utility model, the elastic conductive sheet 15 may be disposed on the paint spraying surface at other positions of the copper bar cable, and may be in contact with and conductive with the adaptive shielding structure.
In this embodiment, when the conductive paint is sprayed on the surface of the copper bar cable, the surface of the copper bar is not sprayed, that is, the conductive paint is not sprayed on the surface of the portion, extending out of the FR-4 epoxy board, of the copper bar of each conductive layer at the two ends of the copper bar, and the conductive paint is not sprayed on the extending portion 91 of the bottom insulating layer of the copper bar cable.
Specifically, the surfaces of the insulating layers and the conducting layers which form the copper bar cable, which are not contacted with the adjacent layers, are sprayed with conducting paint, and the surface of the copper bar 11 is free of conducting paint as the copper bar 11 is surrounded by the FR-4 epoxy board and the adjacent insulating layers. According to the utility model, the metal conductive paint and the elastic conductive sheet are combined to realize the electromagnetic shielding function of the copper bar, so that the anti-interference capability is improved.
The multilayer composite hard copper bar structure can realize effective conduction of multiple circuits in a smaller space; the lamination quality of the copper bars is improved; installation time is saved, and installation efficiency is improved; the structure can prevent the screw from falling off, so that the screw is prevented from falling into the case in the installation process; the copper bar electromagnetic shielding structure effectively improves the anti-interference capability of the copper plate.
The present utility model is not limited to the above-mentioned embodiments, but is not limited to the above-mentioned embodiments, and any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical matters of the present utility model can be made by those skilled in the art without departing from the scope of the present utility model.

Claims (10)

1. The utility model provides a multilayer composite construction stereoplasm copper bar cable subassembly which characterized in that: the device comprises a first insulating layer, a first conducting layer, a second insulating layer, a second conducting layer, a third insulating layer, a third conducting layer, a fourth insulating layer, a fourth conducting layer and a fifth insulating layer which are distributed from top to bottom in a laminated manner, wherein a bonding layer for realizing connection and fixation of the two adjacent insulating layers and the conducting layer is arranged between the adjacent insulating layers and the conducting layer; the central positioning hole extending along the thickness direction of the copper bar cable penetrates through the insulating layer, the bonding layer and the conducting layer which are arranged in a stacked mode, and is matched with the positioning pin to realize positioning when all layers are stacked.
2. The multi-layer composite structured hard copper bar cable assembly of claim 1, wherein: two copper bars are arranged in one of the conductive layers, and an insulating part is arranged between the two copper bars; the other conductive layers are provided with only one conductive copper bar.
3. The multi-layer composite structured hard copper bar cable assembly of claim 2, wherein: every copper bar both ends all stretch out and are used for being connected the pin that switches on with the adaptation connecting piece, and when this cable assembly was installed, the insulating layer that is located the bottom stretched out and have the extension of protruding other insulating layers, and this extension can fill the clearance between pin and the mounting panel, prevents that connecting screw on the pin from by dodging the hole on the mounting panel and dropping.
4. A multilayer composite structured rigid copper bar cable assembly according to claim 3, wherein: the positions of the extending parts, which correspond to the pins, are also provided with through holes for avoiding, and a gap between the pin and the extending parts does not allow the connecting screw to pass through.
5. A multilayer composite structured rigid copper bar cable assembly according to claim 3, wherein: at least one locating part which is used for being matched with a locating structure on the mounting plate to realize quick locating when the cable assembly is mounted is arranged on at least one extending part.
6. The multi-layer composite structured hard copper bar cable assembly of claim 5, wherein: the locating pin penetrating through the central locating hole can be matched and located with the corresponding locating hole on the mounting plate during mounting.
7. The multi-layer composite structured hard copper bar cable assembly of claim 6, wherein: the positioning part is a positioning hole or a positioning groove.
8. The multi-layer composite structured hard copper bar cable assembly of claim 7, wherein: the extending directions of the at least two extending parts are different, and the extending directions of the extending parts where the locating holes and the locating grooves are located are different.
9. The multilayer composite structured rigid copper bar cable assembly of any one of claims 2-8, wherein: an insulating piece is further arranged between the central positioning hole and the copper bar of the conducting layer, so that insulation and isolation between the copper bar and the positioning pin are realized.
10. The multilayer composite structured rigid copper bar cable assembly of any one of claims 1-8, wherein: the insulating piece and the insulating layer in the conducting layer are FR-4 epoxy plates; the bonding layer is PP prepreg.
CN202322269826.5U 2023-08-23 2023-08-23 Multilayer composite structure hard copper bar cable assembly Active CN220796331U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322269826.5U CN220796331U (en) 2023-08-23 2023-08-23 Multilayer composite structure hard copper bar cable assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322269826.5U CN220796331U (en) 2023-08-23 2023-08-23 Multilayer composite structure hard copper bar cable assembly

Publications (1)

Publication Number Publication Date
CN220796331U true CN220796331U (en) 2024-04-16

Family

ID=90661719

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322269826.5U Active CN220796331U (en) 2023-08-23 2023-08-23 Multilayer composite structure hard copper bar cable assembly

Country Status (1)

Country Link
CN (1) CN220796331U (en)

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