Composite coating anti-oxidation metal connecting piece for mobile phone

Abstract

The utility model relates to the technical field of composite coating anti-oxidation metal connecting sheets for mobile phones, in particular to a composite coating anti-oxidation metal connecting sheet for mobile phones, which comprises a base metal sheet, copper foil layers, an anti-oxidation coating, a nano coating and a protective film. A plurality of heat dissipation protruding blocks are integrally formed on the upper surfaces of the copper foil layers, the heat dissipation protruding blocks are evenly distributed on the surfaces of the sides, away from each other, of the two copper foil layers at equal intervals, and by additionally arranging the heat dissipation protruding blocks on the surfaces of the sides, away from each other, of the two copper foil layers, the specific surface area of the copper foil layers can be increased; and meanwhile, directional bending is achieved through the wave structure of the base layer metal sheet, the auxiliary directional effect is achieved during bending installation, meanwhile, stress is more uniform, and the stability of the whole device during connection is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a mobile phone metal connecting piece technical field, especially in kind of composite plating layer anti -oxidation metal connecting piece for mobile phone. BACKGROUND

[0002] Mobile phone metal connecting piece is a kind of small metal parts for connecting mobile phone and other equipment or accessories, mobile phone metal connecting piece is usually used to connect the back cover of mobile phone and battery or other internal components, ensure the stability of electrical and physical connection, ensure the normal work of battery flat cable interface, with good conductivity and structural strength. Their main functions include:‌Electrical connection: ensure the electrical connection between battery or other internal components and mobile phone mainboard, ensure the normal operation of equipment.

[0003] But some composite plating layer anti-oxidation metal connecting piece for mobile phone in existing technology still has the problem of insufficient heat conductivity when using, influence the heat dissipation demand of composite plating layer anti-oxidation metal connecting piece when using, further influence the service life of connecting component. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of composite plating layer anti-oxidation metal connecting piece for mobile phone, to solve the technical problem in prior art.

[0005] The utility model provides a kind of composite plating layer anti-oxidation metal connecting piece for mobile phone, including base metal sheet, copper foil layer, oxidation-resistant coating, nano coating, protective film:

[0006] The base metal sheet upper and lower surfaces are provided with copper foil layer, the base metal sheet is in whole wave shape, and the surface of the base metal sheet is equidistantly provided with a plurality of stretch holes, the upper surface of the copper foil layer is integrally formed with a plurality of heat dissipation protruding blocks, and the plurality of heat dissipation protruding blocks are equidistantly and uniformly distributed on the side surface of the two copper foil layers away from each other.

[0007] Preferably, the base metal sheet is made of phosphor bronze or beryllium bronze material.

[0008] Preferably, the outer side of the two copper foil layers is coated with an oxidation-resistant coating, and the oxidation-resistant coating is made of aluminum oxide coating material.

[0009] Preferably, the outermost layer of the two copper foil layers is coated with a nano coating, and the nano coating is made of dimethylsiloxane material.

[0010] Preferably, the outer side of the two copper foil layers is attached with a protective film, and one end of the two protective films is fixedly connected with a tear-off strip for tearing off the protective film, and the tear-off strip protrudes from one side of the copper foil layer.

[0011] Preferably, the base metal sheet is fixed by adhesive colloid between the copper foil layer of the upper and lower surfaces.

[0012] Preferably, the upper top surface of the heat dissipation protruding block is arc-shaped structure, the height is 0.2-0.5mm, the adjacent protruding block spacing is 1-2mm, and the surface is provided with micron-level groove to increase the heat dissipation area.

[0013] Preferably, the surface of the tear-off pull strip is provided with anti-skid lines, and the end extends to form an arc-shaped pull ring, and the inner diameter of the pull ring is 2-3mm.

[0014] The beneficial effect of the utility model is: a kind of composite coating anti-oxidation metal connecting piece for mobile phone, by the multiple heat dissipation protruding blocks of the surface of the side of the mutual departure of two copper foil layers, the specific surface area of copper foil layer can be increased, and then the heat is transferred to air at high speed, to improve the heat dissipation effect of the entire device when electrical component is connected, and the directional bending is realized by the wave structure of base metal sheet, the effect of auxiliary orientation is played when bending installation, stress is more uniform, and the stability of the entire device when connecting is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is front perspective structure schematic diagram of the utility model.

[0016] Figure 2 It is the utility model Figure 1 structure schematic diagram of A place.

[0017] Figure 3 It is base metal sheet perspective structure schematic diagram of the utility model.

[0018] Figure 4 It is copper foil layer perspective structure schematic diagram of the utility model.

[0019] In the drawings, 1, base metal sheet;2, copper foil layer;3, anti-oxidation coating;4, nano coating;5, protective film;6, stretch hole;7, heat dissipation protruding block;8, tear-off pull strip.

[0020] The realization of the utility model, functional characteristics and advantages will be further described with reference to the drawings in conjunction with embodiments. DETAILED DESCRIPTION

[0021] It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0022] As Figures 1-4As shown, the application provides a method for manufacturing a composite plated anti-oxidation metal connecting piece for mobile phones, which comprises a base metal piece 1, the upper and lower surfaces of the base metal piece 1 are provided with copper foil layers 2, the base metal piece 1 is in a wave shape as a whole, and a plurality of expansion holes 6 are equidistantly arranged on the surface of the base metal piece 1, the upper surface of the copper foil layer 2 is integrally provided with a plurality of heat dissipation protruding blocks 7, and the plurality of heat dissipation protruding blocks 7 are equidistantly and uniformly arranged on the side surface of the two copper foil layers 2 away from each other, the upper top surface of the heat dissipation protruding block 7 is in an arc shape, the height is 0.2-0.5 mm, the distance between adjacent protruding blocks is 1-2 mm, and the surface is provided with micron-level grooves to increase the heat dissipation area.

[0023] The expansion holes 6 can form multiple stress release channels. On the one hand, the wave-shaped structure can improve the overall elasticity of the connecting piece, and adapt to the deformation requirements of different components during the assembly of the mobile phone; on the other hand, the arrangement of the expansion holes 6 effectively disperses the thermal stress caused by temperature changes, avoids the interface peeling problem between the copper foil layer 2 and the base metal piece 1 caused by the difference in thermal expansion coefficient, thereby significantly improving the long-term reliability of the connecting piece, wherein the base metal piece 1 is made of phosphor bronze or beryllium bronze material, the base metal piece 1 made of phosphor bronze or beryllium bronze material has certain toughness and ductility, and the base metal piece 1 and the copper foil layers 2 on the upper and lower surfaces can be fixed by adhesive gel adhesion. By increasing the plurality of heat dissipation protruding blocks 7 arranged on the side surface of the two copper foil layers 2 away from each other, the specific surface area of the copper foil layer 2 can be increased, and then the heat transfer to the air can be accelerated, thereby improving the heat dissipation effect of the entire device during the connection of electrical components. At the same time, the wave structure of the base metal piece 1 realizes directional bending, which plays an auxiliary directional role during bending installation, and the stress is more uniform, thereby improving the stability of the entire device during connection. The integrally formed heat dissipation protruding block 7 enhances the heat radiation efficiency by increasing the surface area, and the wave-shaped base metal piece 1 has a gap structure that can guide airflow to form natural convection. The combination of the two can achieve efficient heat dissipation of the connecting piece in a limited space, which is especially suitable for the thermal management requirements of the dense electronic component area of the mobile phone mainboard.

[0024] Referring to Figures 1-4 As shown, a composite plated anti-oxidation metal connecting piece for mobile phones, the outer sides of the two copper foil layers 2 are coated with an anti-oxidation coating layer 3, the anti-oxidation coating layer 3 is made of aluminum oxide coating material, the outermost layer of the two copper foil layers 2 is coated with a nano coating layer 4, and the nano coating layer 4 is made of dimethyl silicone material.

[0025] The protective oxidation film can be formed by the oxidation resistant coating 3 coated on the surface of the copper foil layer 2, the oxidation of the copper foil layer 2 is prevented, the adhesion of pollutants such as dust and oil stains is reduced by the nano coating 4 arranged on the outermost side of the copper foil layer 2, the anti-fouling, wear resistance and corrosion resistance are improved, the aluminum oxide coating 3 serves as a bottom barrier to block the direct penetration of oxygen and moisture, the nano coating 4 further isolates the corrosion medium through the hydrophobic property and reduces the surface friction coefficient to reduce the wear during plugging and unplugging.

[0026] Referring to Figures 1-4 The protective oxidation film can be formed by the oxidation resistant coating 3 coated on the surface of the copper foil layer 2, the oxidation of the copper foil layer 2 is prevented, the adhesion of pollutants such as dust and oil stains is reduced by the nano coating 4 arranged on the outermost side of the copper foil layer 2, the anti-fouling, wear resistance and corrosion resistance are improved, the aluminum oxide coating 3 serves as a bottom barrier to block the direct penetration of oxygen and moisture, the nano coating 4 further isolates the corrosion medium through the hydrophobic property and reduces the surface friction coefficient to reduce the wear during plugging and unplugging.

[0027] The technical principle of the utility model is: first, the protective oxidation film 5 can be removed through the setting of the tear strip 8 during use, the anti-slip pattern and arc-shaped pull ring design of the tear strip 8 conforms to ergonomics, and coating damage caused by improper operation is avoided. The structure ensures surface cleaning during transportation and storage, significantly simplifies the preparation work before assembly, then the device is used for connecting between electrical elements of a mobile phone, and the base metal sheet 1 and the copper foil layer 2 on the upper and lower surfaces can be fixed by adhesive glue, the specific surface area of the copper foil layer 2 can be increased by the setting of the plurality of heat dissipation protruding blocks 7 on the surface of the two copper foil layers 2 away from each other, heat is then transferred to air at a faster speed, the heat dissipation effect of the whole device during electrical element connection is improved, the base metal sheet 1 is realized directional bending through the wave structure, the bending installation plays a role in auxiliary orientation, the stress of the whole device is more uniform, and the stability of the whole device during connection is improved. When the connecting sheet is applied to a 5G mobile phone mainboard, the wave-shaped structure can absorb the micro deformation during assembly of the mainboard and the shell, the expansion hole 6 relieves the local temperature rise stress caused by high-frequency signal transmission, the heat dissipation protruding blocks 7 of the copper foil layer 2 directly contact the mainboard heat dissipation module, the heat conduction efficiency is improved by enlarging the contact area, the hydrophobic property of the nano coating 4 can prevent oxidation short circuit caused by hand sweat or environmental humidity, and is especially suitable for dynamic parts such as foldable mobile phone hinges. The working principle of the above-mentioned mobile phone composite plated anti-oxidation metal connecting sheet is as follows.

[0028] It is to be understood that the terms "including", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a... " does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0029] The above only describes the preferred embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation obtained by using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A composite-coated anti-oxidation metal connector for mobile phones, characterized in that, Includes a base metal sheet (1), a copper foil layer (2), an antioxidant coating (3), a nano-coating (4), and a protective film (5): The base metal sheet (1) has copper foil layers (2) on both its upper and lower surfaces. The base metal sheet (1) is wavy in shape and has several expansion holes (6) at equal intervals on its surface. The upper surface of the copper foil layer (2) is integrally formed with several heat dissipation protrusions (7), and the heat dissipation protrusions (7) are evenly distributed at equal intervals on the opposite side of the two copper foil layers (2).

2. The composite-coated anti-oxidation metal connector for mobile phones according to claim 1, characterized in that: The base metal sheet (1) is made of phosphor bronze or beryllium bronze.

3. The composite-coated anti-oxidation metal connector for mobile phones according to claim 1, characterized in that: Both copper foil layers (2) are coated with an anti-oxidation coating (3) on their outer sides, and the anti-oxidation coating (3) is made of aluminum oxide coating material.

4. The composite-coated anti-oxidation metal connector for mobile phones according to claim 1, characterized in that: The outermost layer of the two copper foil layers (2) is coated with a nano-coating (4), which is made of dimethylsiloxane material.

5. The composite-coated anti-oxidation metal connector for mobile phones according to claim 1, characterized in that: A protective film (5) is attached to the outside of the two copper foil layers (2). A tear strip (8) for tearing off the protective film (5) is fixedly connected to one end of each of the two protective films (5), and the tear strip (8) protrudes from one side of the copper foil layer (2).

6. The composite-coated anti-oxidation metal connector for mobile phones according to claim 1, characterized in that: The base metal sheet (1) is bonded and fixed to the copper foil layer (2) on the upper and lower surfaces by an adhesive colloid.

7. The composite-coated anti-oxidation metal connector for mobile phones according to claim 1, characterized in that: The top surface of the heat dissipation protrusion (7) is an arc-shaped structure with a height of 0.2-0.5 mm. The distance between adjacent protrusions is 1-2 mm, and the surface is provided with micron-level grooves to increase the heat dissipation area.

8. The composite-coated anti-oxidation metal connector for mobile phones according to claim 5, characterized in that: The surface of the tear strip (8) is provided with anti-slip texture, and the end extends to form an arc-shaped pull ring with an inner diameter of 2-3mm.

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