Electrical connector and manufacturing method thereof, electrical connector assembly, and electronic equipment
By using polymer elastomer and conductive filler in the electrical connection structure of electronic devices to form conductive channels and isolate the salt solution, the galvanic corrosion problem is solved and the electrical connection reliability and structural stability are improved.
Patent Information
- Application Number
- CN202410954706.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2044-07-17
AI Technical Summary
The electrical connection structure in electronic equipment is prone to galvanic corrosion in a salt solution environment, resulting in failure of metal shrapnel elastic connection and the structural strength and dimensional stability of structural parts being affected.
The polymer elastomer is used as the main support structure of the electrical connection member, and the conductive filler is dispersed in its local area, so that the conductive channel extends to both sides in the height direction of the polymer elastomer, thereby isolating the salt solution.
Effectively prevent galvanic corrosion, improve the connection reliability of electrical connection components, ensure the structural strength and dimensional stability of structural parts, and improve the reliability of electronic equipment.
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Abstract
Description
Technical Field
[0001] The present application relates to the technical field of electronic products, and in particular to an electrical connector and a manufacturing method thereof, an electrical connector assembly, and an electronic device. Background Art
[0002] In electronic devices such as mobile phones and tablet computers, some components and structures need to be electrically connected to meet the functional requirements of the electronic devices.
[0003] At present, metal springs are usually provided in electronic devices to realize electrical connection between related components and structures. Among them, these components and structures contact with the metal springs to form an electrical connection structure, and a potential difference will be formed in the electrical connection structure. However, in a salt solution environment, electron paths and ion paths will be formed in the conductive spring connection area of the electrical connection structure, which will cause galvanic corrosion of the electrical connection structure. If the degree of corrosion is severe, the metal spring connection will fail and the electrical connection structure will be broken. In addition, it will also affect the structural strength and dimensional stability of these components and structures. Summary of the invention
[0004] The present application provides an electrical connector and a manufacturing method thereof, an electrical connector assembly, and an electronic device. The electrical connector can isolate a salt solution outside a conductive elastic connection area of the electrical connector assembly to improve or even avoid galvanic corrosion, enhance the connection reliability of the electrical connector assembly, and ensure the structural strength and dimensional stability of the structural member.
[0005] The first aspect of the present application provides an electrical connector, comprising: a polymer elastomer; a conductive filler dispersed in a local area of the polymer elastomer to form a conductive channel in the polymer elastomer; wherein the conductive channel extends along the height direction of the polymer elastomer, and the conductive channel extends to both side surfaces of the polymer elastomer in the height direction.
[0006] The electrical connector provided by the present application is provided with a polymer elastomer as the main supporting structure of the electrical connector, and a conductive filler is dispersedly provided in a local area of the polymer elastomer, and the conductive filler is arranged directionally along the height direction of the polymer elastomer, and completely occupies the height space of the polymer elastomer. In this way, a conductive channel can be formed in the polymer elastomer, and the conductive channel extends along the height direction of the polymer elastomer and extends to the two side surfaces of the height direction of the polymer elastomer. Thus, the polymer elastomer is elastically contacted with the structural parts located on both sides of the height direction to form an electrical connection component, and the conductive channel in the polymer elastomer electrically connects the structural parts on both sides. In this way, the polymer elastomer isolates the salt solution outside the conductive elastic connection area of the electrical connection component, prevents the formation of electronic and ion paths in the electrical connection component, improves or even avoids the galvanic corrosion phenomenon, improves the connection reliability of the electrical connection component, ensures the structural strength and dimensional stability of the structural parts, and improves the reliability of the electronic equipment.
[0007] In a possible implementation, the conductive filler includes a magnetic core and a conductive coating, wherein the conductive coating is wrapped around the outside of the magnetic core; wherein the magnetic core, under the action of a magnetic field force, causes the conductive filler to be oriented and arranged to form a conductive channel.
[0008] The conductive filler is formed by wrapping the conductive coating on the outside of the magnetic core. The magnetic core can make the conductive filler oriented under the action of the magnetic field force, and the conductive coating can achieve good electrical conduction between the conductive fillers. Under the joint action of the magnetic core and the conductive coating, the conductive filler forms a conductive channel extending to the two side surfaces along the height direction of the polymer elastomer.
[0009] In a possible implementation, the polymer elastomer is a rubber body.
[0010] By setting the polymer elastomer as a rubber body, the rubber body has good elasticity, which can ensure that the polymer elastomer is tightly connected between the first structure member and the second structure member to ensure the reliability of electrical conduction of the electrical connection component. In addition, the rubber body has strong waterproof performance and can effectively isolate the salt solution outside the conductive connection area of the electrical connection component.
[0011] In a possible implementation, in the planar direction of the polymer elastomer, the conductive channel is located in the central region of the polymer elastomer.
[0012] By arranging the conductive channel in the central area of the plane direction of the polymer elastomer, the distance between the conductive channel and each part of the outer wall of the polymer elastomer is large, the polymer elastomer has a better protective effect on the conductive channel, and the reliability of the electrical connection component can be guaranteed. In addition, the electrical contact between the first structural member, the second structural member and the electrical connection member is facilitated, and the docking accuracy requirements of the electrical connection component can be reduced.
[0013] In a possible implementation, at least one side surface of the polymer elastomer in the height direction has a boss portion, and the conductive path is located in the area where the boss portion is located.
[0014] By setting a boss portion on at least one side surface of the polymer elastomer in the height direction, a conductive channel is set in the area where the boss portion is located, and the polymer elastomer is electrically contacted with the structural member on the corresponding side through the boss portion. The boss portion protrudes on the surface of the polymer elastomer and occupies a small volume. The boss portion can produce good elastic deformation and be in close contact with the structural member, ensuring reliable electrical conduction between the polymer elastomer and the structural member. In addition, during the molding process of the polymer elastomer, the boss portion can locate the position of the conductive channel, and can accurately locate the position where the magnetic field is applied.
[0015] In a possible implementation, both side surfaces of the polymer elastomer in the height direction have boss portions, and the boss portions on both sides are coaxially arranged.
[0016] By providing bosses on both side surfaces of the polymer elastomer in the height direction and coaxially arranging the bosses on both sides, the contact pressure between the polymer elastomer and the structural members on both sides is located on the same straight line, which can improve the force stability of the electrical connection component.
[0017] In a possible implementation, the electrical connector further includes: a glue layer, which is disposed on at least one side surface of the polymer elastomer in the height direction and surrounds the outer periphery of the boss portion.
[0018] By providing an adhesive layer on at least one side of the polymer elastomer in the height direction, the polymer elastomer is bonded and fixed to the structural member on the corresponding side through the adhesive layer, so as to ensure that the electrical connector is firmly connected to the structural member and that the electrical connector and the structural member are in reliable electrical contact. The adhesive layer can be arranged around the outer periphery of the boss portion on the surface of the polymer elastomer to avoid interference of the adhesive layer with the boss portion, and ensure that the boss portion can contact the surface of the second structural member while the adhesive layer and the second structural member are bonded.
[0019] In a possible implementation, the adhesive layer is a waterproof adhesive layer.
[0020] By setting the adhesive layer as a waterproof adhesive layer, the waterproof adhesive layer not only plays a bonding role, but also has a waterproof and sealing effect. It can provide waterproof protection for the conductive channel surrounded by it, isolate the salt solution outside the conductive channel, and prevent galvanic corrosion of the electrical connection components.
[0021] In one possible embodiment, at least one side surface of the polymer elastomer in the height direction has an inclined portion, and the inclined portion extends from the edge of the polymer elastomer to the center of the polymer elastomer; wherein the height of the polymer elastomer gradually increases from the outer edge of the inclined portion to the inner edge of the inclined portion.
[0022] By providing an inclined portion on at least one side surface of the polymer elastomer in the height direction, the inclined portion extends from the edge of the polymer elastomer to the center of the polymer elastomer, and the height of the polymer elastomer gradually increases from the outer edge of the inclined portion to the inner edge of the inclined portion. In this way, a slope is formed in the edge area of the polymer elastomer, the thickness of the edge area of the polymer elastomer is reduced, the elastic deformation capacity of the polymer elastomer is enhanced, the polymer elastomer is more closely contacted with the structural member on the corresponding side, and reliable electrical contact between the polymer elastomer and the structural member is ensured.
[0023] The second aspect of the present application provides a method for manufacturing an electrical connector, comprising: placing a polymer raw material into a mold for compression molding to form a polymer elastomer; during the compression molding process, adding a conductive filler into the polymer raw material, and applying a magnetic field to a local area of the polymer raw material to orient the conductive filler to form a conductive channel in the polymer elastomer; wherein the conductive channel extends along the height direction of the polymer elastomer to the two side surfaces of the polymer elastomer.
[0024] The manufacturing method of the electrical connector provided in the present application is to form a polymer elastomer by placing a polymer raw material into a mold for compression molding. In addition, during the compression molding process of the polymer raw material, a conductive filler is put into the polymer raw material, and a magnetic field is applied to a local area of the polymer raw material, so that the conductive filler is oriented under the action of the magnetic field, and the conductive fillers are in close contact with each other to form a conductive channel in the polymer elastomer after molding. Wherein, the applied magnetic field causes the conductive filler to be oriented along the height direction of the polymer elastomer, and the conductive filler occupies the entire space in the height direction of the polymer elastomer. Thus, the conductive channel formed in the polymer elastomer can extend along the height direction of the polymer elastomer, and the conductive channel extends to the two side surfaces of the polymer elastomer. The polymer elastomer elastically contacts with the structural members located on both sides of its height direction to form an electrical connection component, and the conductive channel in the polymer elastomer electrically connects the structural members on both sides. In this way, the polymer elastomer isolates the salt solution outside the conductive elastic connection area of the electrical connection component, prevents the formation of electronic paths and ion paths in the electrical connection component, improves or even avoids the galvanic corrosion phenomenon, improves the connection reliability of the electrical connection component, ensures the structural strength and dimensional stability of the structural members, and improves the reliability of the electronic equipment.
[0025] In one possible embodiment, at least one side surface of the polymer elastomer in the height direction has a boss portion, and the conductive channel is located in the area where the boss portion is located; forming a conductive channel in the polymer elastomer includes: applying a magnetic field in the area where the boss portion is located to orient the conductive filler in the area where the boss portion is located to form a conductive channel in the area where the boss portion is located.
[0026] In the process of compression molding the polymer elastomer, after adding the conductive filler into the polymer raw material, a magnetic field is applied to the area where the boss portion of the polymer elastomer to be molded is located. Under the action of the magnetic field, the conductive filler can be arranged in a directional manner in the area where the boss portion is located, and a conductive channel can be formed in the area where the boss portion is located. In this way, while the polymer elastomer contacts the structural member on the corresponding side through the boss portion, the conductive channel located in the area where the boss portion is located can realize electrical conduction between the electrical connector and the structural member.
[0027] In a possible implementation, the manufacturing method further includes: providing an adhesive layer on at least one side surface of the polymer elastomer in the height direction, so that the adhesive layer surrounds the outer periphery of the boss portion.
[0028] After the polymer elastomer is molded and a conductive path is formed in the polymer elastomer, an adhesive layer is provided on at least one surface of the polymer elastomer in the height direction, and the electrical connector can be bonded and fixed to the structural member on the corresponding side through the adhesive layer.
[0029] The third aspect of the present application provides an electrical connection assembly, comprising: a first structural member, a second structural member and the electrical connection member as described above, wherein the electrical connection member is arranged between the first structural member and the second structural member, and the first structural member and the second structural member are electrically connected through a conductive channel of the electrical connection member.
[0030] The electrical connection assembly provided by the present application includes a first structural member, a second structural member and an electrical connector, and the electrical connector is arranged between the first structural member and the second structural member to electrically connect the first structural member and the second structural member. The electrical connector is provided by setting a polymer elastomer as the main support structure of the electrical connector, and by dispersing and arranging conductive fillers in a local area of the polymer elastomer, the conductive fillers are arranged directionally along the height direction of the polymer elastomer, and completely occupy the height space of the polymer elastomer. In this way, a conductive channel can be formed in the polymer elastomer, the conductive channel extends along the height direction of the polymer elastomer, and extends to the two side surfaces of the height direction of the polymer elastomer, and the conductive channel electrically connects the first structural member and the second structural member. In this way, the polymer elastomer isolates the salt solution outside the conductive elastic connection area of the electrical connection assembly, prevents the formation of electronic and ion paths in the electrical connection assembly, improves or even avoids galvanic corrosion, improves the connection reliability of the electrical connection assembly, ensures the structural strength and dimensional stability of the structural member, and improves the reliability of the electronic device.
[0031] In a possible implementation, at least one of the first structural member and the second structural member is a metal member, a surface of the metal member facing the electrical connector has a laser-engraved area, and a conductive channel of the electrical connector is in electrical contact with the laser-engraved area.
[0032] By setting a laser engraving area on the surface of the metal part facing the electrical connector, the conductive path of the electrical connector is in electrical contact with the laser engraving area of the metal part. By laser engraving the surface of the metal part, the oxide film in the laser engraving area can be removed, making the electrical contact between the conductive path of the electrical connector and the metal part more stable and reliable, ensuring good conduction of the electrical connection component.
[0033] In a possible implementation manner, the adhesive layer of the electrical connector is bonded to the metal component, and the adhesive layer is disposed around the periphery of the laser engraving area.
[0034] By bonding the adhesive layer of the electrical connector to the metal part, the adhesive layer avoids the conductive path of the polymer elastomer. Thus, the electrical connector and the metal part are fixedly connected, which can ensure that the electrical connector and the metal part are firmly connected, and can also ensure reliable and good electrical contact between the conductive path of the electrical connector and the metal part. Among them, when the metal part has a laser engraving area, the conductive path of the polymer elastomer is directly in electrical contact with the laser engraving area of the metal part, and the adhesive layer can be arranged outside the laser engraving area.
[0035] A fourth aspect of the present application provides an electronic device, comprising the electrical connection assembly as described above.
[0036] The electronic device provided by the present application includes an electrical connection component, the electrical connection component includes a first structural member, a second structural member and an electrical connection member, and the electrical connection member is arranged between the first structural member and the second structural member to electrically connect the first structural member and the second structural member. The electrical connection member is provided by setting a polymer elastomer as the main support structure of the electrical connection member, and by dispersing and setting a conductive filler in a local area of the polymer elastomer, the conductive filler is arranged in a direction along the height direction of the polymer elastomer, and completely occupies the height space of the polymer elastomer. In this way, a conductive channel can be formed in the polymer elastomer, the conductive channel extends along the height direction of the polymer elastomer, and extends to the two side surfaces of the height direction of the polymer elastomer, and the conductive channel electrically connects the first structural member and the second structural member. In this way, the polymer elastomer isolates the salt solution outside the conductive elastic connection area of the electrical connection component, prevents the formation of an electronic path and an ion path in the electrical connection component, improves or even avoids the galvanic corrosion phenomenon, improves the connection reliability of the electrical connection component, ensures the structural strength and dimensional stability of the structural member, and improves the reliability of the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS
[0037] Figure 1 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application;
[0038] Figure 2 for Figure 1 an exploded structural diagram of the electronic device shown;
[0039] Figure 3 A schematic diagram of the structure of an electrical connection assembly provided in an embodiment of the present application;
[0040] Figure 4 for Figure 3 An exploded structural diagram of the electrical connection components in FIG.
[0041] Figure 5 for Figure 3 A cross-sectional structural diagram of the electrical connection assembly along line AA;
[0042] Figure 6A schematic diagram of the structure of the conductive filler in the electrical connector provided in an embodiment of the present application;
[0043] Figure 7 A structural diagram of an electrical connector provided in an embodiment of the present application from one perspective;
[0044] Figure 8 A structural diagram of an electrical connector provided in an embodiment of the present application from another perspective;
[0045] Fig. 9 A side view of a polymer elastomer provided in an embodiment of the present application;
[0046] Fig.10 A flowchart of the steps of a method for manufacturing an electrical connector provided in an embodiment of the present application.
[0047] Description of reference numerals:
[0048] 10-Electronic equipment;
[0049] 100-display screen; 200-housing; 300-mainboard; 400-battery; 500-camera; 600-electrical connection components;
[0050] 210-middle frame; 220-back cover; 610-first structural member; 620-second structural member; 630-electrical connector;
[0051] 211-middle plate; 212-frame; 601-laser engraving area; 602-positioning groove; 631-polymer elastomer; 632-conductive filler; 633-glue layer;
[0052] 6301-conductive channel; 6311-boss portion; 6312-inclined portion; 6321-magnetic core; 6322-conductive coating. DETAILED DESCRIPTION
[0053] The terms used in the implementation section of this application are only used to explain the specific embodiments of this application and are not intended to limit this application.
[0054] The embodiment of the present application provides an electronic device, which can be a consumer electronic product. For example, the electronic device includes but is not limited to a mobile phone, a portable android device (PAD), a notebook computer, a laptop computer, a netbook, an ultra-mobile personal computer (UMPC), a walkie-talkie, a POS (Point of sales) machine, a personal digital assistant (PDA), a multimedia player, an e-book reader, a vehicle-mounted device, a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, etc. Among them, the wearable device includes but is not limited to a smart bracelet, a smart watch, a smart head-mounted display, a smart glasses, etc.
[0055] Figure 1 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. Figure 1 As shown in the figure, the electronic device 10 is a mobile phone as an example, and the electronic device 10 may include a display screen 100 and a housing 200. One side surface of the display screen 100 is used to display image information, and the side surface of the display screen 100 is usually defined as its front side, and the other side surface opposite to its front side is its back side. The housing 200 is arranged around the side and back side of the display screen 100, and is used to support and fix the display screen 100 and provide protection. The front side of the display screen 100 is exposed outside the housing 200, so that the user can view the content displayed on the display screen 100 or perform input operations on the electronic device 10.
[0056] Figure 2 for Figure 1 An exploded view of the electronic device is shown. Figure 2 As shown, when the electronic device 10 is a straight-type electronic device, the shell 200 of the electronic device 10 may include a middle frame 210 and a back cover 220, the middle frame 210 is connected between the display screen 100 and the back cover 220, the display screen 100 is supported on one side surface of the middle frame 210, and the back cover 220 is connected to the other side surface of the middle frame 210.
[0057] The display screen 100 is usually integrally mounted on the middle frame 210 to ensure the strength and stability of the display screen 100 and meet the use requirements of the display screen 100. The back cover 220 is usually connected to the middle frame 210 in an overlapping manner. The middle frame 210 and the back cover 220 together form a receiving cavity, and the receiving cavity is used to install components such as the mainboard 300, the battery 400, the camera 500, and the speaker (not shown in the figure).
[0058] The middle frame 210 may include a middle plate portion 211 and a frame portion 212, wherein the middle plate portion 211 is located between the display screen 100 and the back cover 220, and the frame portion 212 is disposed around the periphery of the middle plate portion 211. For example, the frame portion 212 may extend perpendicularly to the plate surface of the middle plate portion 211 to both sides of the middle plate portion 211. Exemplarily, the frame portion 212 and the middle plate portion 211 may be an integrally formed structure.
[0059] The display screen 100 is usually mounted on the middle plate portion 211 of the middle frame 210 in an integrally bonded manner. The support of the middle plate portion 211 on the display screen 100 can ensure that the display screen 100 is supported stably and firmly, so that the display screen 100 has sufficient strength to meet the use requirements of the display screen 100 being frequently pressed. The frame portion 212 is arranged around the side of the display screen 100 to protect the side of the display screen 100, helping the display screen 100 to resist risk scenarios such as collision and falling, and protecting the display screen 100 from damage.
[0060] The edge of the back cover 220 is connected to the frame portion 212 of the middle frame 210, for example, the edge of the back cover 220 is bonded to the frame portion 212. There is a gap between the middle plate portion 211 of the middle frame 210 and the back cover 220, and the gap forms a receiving cavity as described above, so that a device can be installed in the receiving cavity between the middle plate portion 211 of the middle frame 210 and the back cover 220.
[0061] Exemplarily, at least part of the structure of the middle frame 210 can be made of metal material. For example, the frame portion 212 of the middle frame 210 is made of a metal frame, the edge area where the middle plate portion 211 of the middle frame 210 is connected to the frame portion 212 can be made of metal material, and the other areas of the middle plate portion 211 can be integrally injection-molded plastic material. The metal part of the middle frame 210 can be used as an antenna to enable the electronic device to send and receive radio frequency signals.
[0062] In the electronic device 10, some devices and structural parts need to be electrically connected. For example, the copper foil in the display screen 100 is electrically connected to the middle frame 210, the driving device in the camera 500 is electrically connected to the main board 300, and the metal ring on the back cover 220 (which is arranged around the edge of the light-transmitting hole for light to enter the camera 500) is electrically connected to the main board 300 or other circuit boards.
[0063] In the related art, the electrical connection between these devices and structural parts is generally realized by metal springs, which are in elastic contact with these devices and structural parts to form an electrical connection structure. For example, the copper foil in the display screen 100 and the metal part of the middle frame 210 are electrically connected by metal springs. The housing 200 of the driving device in the camera 500 is configured as a metal housing, and the metal spring is connected between the housing 200 of the driving device and the main board 300. The metal ring on the back cover 220 and the main board 300 or other circuit boards in the electronic device 10 can also be electrically connected by metal springs.
[0064] However, the metal spring contacts these devices and structural parts, which will form a potential difference in the electrical connection structure. When external liquid enters the electronic device 10 or there is liquid leakage inside the electronic device 10, the electrical connection structure will be placed in a salt solution environment. At this time, under the action of the potential difference in the electrical connection structure, the salt solution will form an electron path and an ion path in the electrical connection structure, causing galvanic corrosion of the electrical connection structure.
[0065] When the corrosion is severe, it will affect the reliability of the metal spring, causing the elastic contact between the metal spring and the corresponding device and structural member to fail, and the electrical connection structure to be broken. In addition, it will also affect the structural strength of the device and structural member. For example, corrosion will reduce the rigidity of the middle frame 210, affecting the reliability of the entire electronic device 10. In addition, the corrosion products produced by the corrosion reaction will also accumulate in the electrical connection structure, which will lift up the components such as the circuit board in the electrical connection structure, affecting the dimensional stability of the circuit board, and may cause board-level failure problems such as connection failure and device short circuit.
[0066] In view of this, the embodiment of the present application improves the way of electrical connection between structural members in the electronic device 10, by designing an electrical connector for electrically connecting two structural members, setting a polymer elastomer as the main support structure of the electrical connector, and dispersing and setting conductive fillers in the local area of the polymer elastomer, the conductive fillers are arranged in a direction along the height direction of the polymer elastomer, and completely occupy the height space of the polymer elastomer. In this way, a conductive channel can be formed in the polymer elastomer, and the conductive channel extends along the height direction of the polymer elastomer and extends to the two side surfaces of the height direction of the polymer elastomer. Thus, the polymer elastomer is elastically contacted with the structural members located on both sides of the height direction to form an electrical connection component, and the conductive channel in the polymer elastomer electrically connects the structural members on both sides. In this way, the polymer elastomer isolates the salt solution outside the conductive elastic connection area of the electrical connection component, prevents the formation of electronic paths and ion paths in the electrical connection component, improves or even avoids the galvanic corrosion phenomenon, improves the connection reliability of the electrical connection component, ensures the structural strength and dimensional stability of the structural members, and improves the reliability of the electronic device.
[0067] The following is a detailed description of an electrical connection assembly consisting of two structural members that need to be electrically connected in the electronic device 10 of the embodiment of the present application, and an electrical connection member in the electrical connection assembly used to electrically connect the two structural members.
[0068] Figure 3 A schematic diagram of the structure of an electrical connection assembly provided in an embodiment of the present application. Figure 4 for Figure 3 Exploded structure diagram of the electrical connection components in. Figure 5 for Figure 3 A cross-sectional structural diagram of the electrical connection component along line AA.
[0069] Reference Figure 3 As shown, the figure schematically illustrates an electrical connection assembly 600 in the electronic device 10. As the name implies, the electrical connection assembly 600 is an electrical connection assembly 600 formed by assembling two structural members that need to be electrically connected together through an electrical connection member 630.
[0070] The electrical connection assembly 600 may include a first structural member 610, a second structural member 620, and an electrical connection member 630. The first structural member 610 and the second structural member 620 are two structural members that need to be electrically connected in the electronic device 10. The electrical connection member 630 is disposed between the first structural member 610 and the second structural member 620. The electrical connection member 630 is a conductive structure. The first structural member 610 and the second structural member 620 are electrically connected through the electrical connection member 630. In other words, the electrical connection member 630 electrically connects the first structural member 610 and the second structural member 620.
[0071] Exemplarily, the first structural member 610 and the second structural member 620 may be devices or components such as the copper foil in the aforementioned display screen 100, the middle frame 210, the housing 200 of the driving device in the camera 500, and the metal ring on the back cover 220. For example, both the first structural member 610 and the second structural member 620 may be metal members, so that the two metal members are electrically connected through the electrical connector 630. Alternatively, one of the first structural member 610 and the second structural member 620 may be a metal member, and the other may be a circuit board (such as the main board 300 or other circuit board in the electronic device 10), so that the metal member and the circuit board are electrically connected through the electrical connector 630. Alternatively, both the first structural member 610 and the second structural member 620 may be circuit boards, so that the two circuit boards are electrically connected through the electrical connector 630. This embodiment does not impose specific restrictions on this.
[0072] It should be understood that the first structural member 610 (or the second structural member 620) mentioned here is a metal member, which does not limit a certain structural member that needs to be electrically connected in the electronic device 10 to be made of metal as a whole, but refers to the part of the structural member that needs to be electrically connected to be a metal structure. Taking the metal ring on the housing 200 or the back cover 220 of the driving device in the camera 500 as an example of a structural member that needs to be electrically connected, the first structural member 610 (or the second structural member 620) may refer to the entire housing 200 of the driving device or the metal ring as a whole. Taking the middle frame 210 as an example of a structural member that needs to be electrically connected, the first structural member 610 (or the second structural member 620) may refer to the metal part in the middle frame 210, for example, the first structural member 610 (or the second structural member 620) is the frame portion 212 of the middle frame 210.
[0073] Reference Figure 4 and Figure 5 As shown, the first structure member 610 and the second structure member 620 may be arranged on both sides of the height direction of the electrical connector 630, one side surface of the electrical connector 630 in the height direction contacts the first structure member 610, and the other side surface of the electrical connector 630 in the height direction contacts the second structure member 620, so that the first structure member 610 and the second structure member 620 are electrically connected through the electrical connector 630. The height direction of the electrical connector 630 is, for example, the thickness direction of the electrical connector 630.
[0074] In this embodiment, the main structure of the electrical connector 630 is a polymer elastomer 631, and the first structural member 610 and the second structural member 620 are respectively located on both sides of the height direction of the polymer elastomer 631, and the polymer elastomer 631 is supported between the first structural member 610 and the second structural member 620. The first structural member 610 contacts the surface of one side of the polymer elastomer 631 in the height direction, and the second structural member 620 contacts the surface of the other side of the polymer elastomer 631 in the height direction.
[0075] Conductive fillers 632 are added to the polymer elastomer 631. The conductive fillers 632 are dispersed in a local area of the polymer elastomer 631. The conductive fillers 632 form conductive channels 6301 (such as Figure 5 ). The conductive filler 632 may be distributed along the height direction of the polymer elastomer 631, and the conductive filler 632 occupies the entire height space of the polymer elastomer 631. Thus, the conductive channel 6301 formed by the conductive filler 632 in the polymer elastomer 631 may extend along the height direction of the polymer elastomer 631, and the conductive channel 6301 extends to both side surfaces of the polymer elastomer 631.
[0076] With such a configuration, the polymer elastomer 631 has good elasticity as the main supporting structure of the electrical connector 630. By making the two side surfaces of the polymer elastomer 631 in the height direction elastically connected to the first structural member 610 and the second structural member 620 respectively, a certain elastic deformation occurs on both sides of the polymer elastomer 631, which can ensure that the first structural member 610 and the polymer elastomer 631, and the second structural member 620 and the polymer elastomer 631 are in close contact.
[0077] Furthermore, by adding conductive fillers 632 into the polymer elastomer 631, the conductive fillers 632 are densely distributed along the height direction of the polymer elastomer 631 and occupy the entire height space of the polymer elastomer 631. The conductive fillers 632 are in electrical contact with each other, and a conductive channel 6301 extending to both side surfaces along the height direction is formed in the polymer elastomer 631. The first structural member 610 is in electrical contact with one end of the conductive channel 6301 in the polymer elastomer 631, and the second structural member 620 is in electrical contact with the other end of the conductive channel 6301 in the polymer elastomer 631, so as to realize the electrical connection between the first structural member 610 and the second structural member 620 through the conductive channel 6301 in the polymer elastomer 631.
[0078] That is, the first structural member 610 and the second structural member 620 disposed on both sides of the polymer elastomer 631 in the height direction both realize conductive elastic connection with the polymer elastomer 631 through the conductive channel 6301 in the polymer elastomer 631. The areas on both sides of the surface of the conductive channel 6301 in the height direction of the polymer elastomer 631 are conductive elastic connection areas between the electrical connector 630 and the first structural member 610, and between the electrical connector 630 and the second structural member 620, respectively.
[0079] Since the conductive channel 6301 is formed inside the polymer elastomer 631, the polymer elastomer 631 can protect the conductive filler 632 in the conductive channel 6301. The good insulation performance of the polymer elastomer 631 can isolate the salt solution outside the conductive elastic connection area of the electrical connection component 600, and prevent the salt solution from contacting the conductive area of the electrical connection component 630. In this way, the formation of electronic and ion pathways in the electrical connection component 600 can be prevented, and the galvanic corrosion phenomenon of the electrical connection component 600 can be improved or even avoided.
[0080] Thus, the electrical connector 630, the first structural member 610 and the second structural member 620 can be prevented from being corroded, the contact between the first structural member 610 and the electrical connector 630, and between the second structural member 620 and the electrical connector 630 can be ensured to be stable, and the connection reliability of the electrical connection assembly 600 can be improved. In addition, the structural strength of the first structural member 610 and the second structural member 620 can be ensured to avoid affecting the reliability of the entire electronic device 10. In addition, the accumulation of corrosive materials caused by galvanic corrosion can be avoided, and the problems of corrosive materials squeezing and lifting the first structural member 610 and the second structural member 620 can be avoided, and the dimensional stability of the first structural member 610 and the second structural member 620 can be ensured. Taking at least one of the first structural member 610 and the second structural member 620 as a circuit board as an example, if the corrosive materials squeeze and lift the circuit board, it may cause board-level failure problems such as connection failure and device short circuit to the circuit board. By improving galvanic corrosion and reducing or even eliminating the accumulation of corrosive materials, the reliability of the circuit board can be ensured and the board-level failure problem of the circuit board can be prevented.
[0081] Continue to refer to Figure 4 and Figure 5 In some embodiments, in the plane direction of the polymer elastomer 631, the conductive channel 6301 in the polymer elastomer 631 can be located in the central area of the polymer elastomer 631. In this way, in the circumferential direction of the polymer elastomer 631, the distance between the conductive channel 6301 and each part of the outer wall of the polymer elastomer 631 is large, and the polymer elastomer 631 has a good protective effect on the conductive channel 6301. The polymer elastomer 631 can isolate the salt solution from contacting the conductive filler 632 in the conductive channel 6301 to ensure the reliability of the electrical connection of the electrical connection component 600. In addition, it is convenient for the electrical contact between the first structural member 610, the second structural member 620 and the electrical connector 630, and the docking accuracy requirement of the electrical connection component 600 is low, which facilitates the assembly of the electrical connection component 600 and can reduce the risk of electrical conduction failure of the electrical connection component 600.
[0082] Taking the example that the shape of the polymer elastomer 631 is similar to a cylinder, on the surface of the polymer elastomer 631, the center of the conductive channel 6301 may coincide with the center of the circle of the polymer elastomer 631. Taking the example that the shape of the polymer elastomer 631 is similar to a rectangular column, on the surface of the polymer elastomer 631, the center of the conductive channel 6301 may coincide with the intersection of the diagonal lines of the polymer elastomer 631.
[0083] When at least one of the first structural member 610 and the second structural member 620 is a metal member, the area on the metal member that is in electrical contact with the electrical connector 630 may be set as the laser engraved area 601 (see Figure 4As shown). That is, the surface of the metal part facing the electrical connector 630 has a laser-engraved area 601, and the laser-engraved area 601 corresponds to the conductive channel 6301 of the electrical connector 630, and the conductive channel 6301 of the electrical connector 630 can be in electrical contact with the laser-engraved area 601 on the metal part. By laser-engraving the surface of the metal part, the oxide film on the surface of the metal part can be removed. Taking the metal part as an aluminum alloy as an example, the aluminum oxide film in the laser-engraved area 601 on the surface of the aluminum alloy can be removed. In this way, the electrical contact between the conductive channel 6301 of the electrical connector 630 and the metal part can be made more stable and reliable, ensuring that the electrical connection assembly 600 is well conductive.
[0084] Taking the first structural member 610 as a circuit board and the second structural member 620 as a metal member as an example, the manufacturing method and functional characteristics of the circuit board can ensure good conduction between the first structural member 610 and the electrical connector 630. At this time, only the area on the surface of the second structural member 620 that is in electrical contact with the electrical connector 630 can be set as the laser engraving area 601. Taking the first structural member 610 and the second structural member 620 as metal members as an example, the area on the surface of the first structural member 610 that is in electrical contact with the electrical connector 630 and the area on the surface of the second structural member 620 that is in electrical contact with the electrical connector 630 can be set as the laser engraving area 601.
[0085] The area of the laser-engraved region 601 on the side surface of the metal part facing the electrical connector 630 can be larger than the contact area between the conductive channel 6301 of the electrical connector 630 and the metal part, so that the electrical contact portion between the electrical connector 630 and the metal part completely falls within the laser-engraved region 601 .
[0086] For example, only a local area on the surface of the metal part can be set as the laser engraving area 601, and the electrical contact portion between the electrical connector 630 and the metal part is ensured to be located within the laser engraving area 601. For example, the contact between the conductive channel 6301 of the electrical connector 630 and the central area of the surface of the metal part can be used as the laser engraving area 601.
[0087] Alternatively, the entire surface of the metal part may be set as the laser engraved area 601, and the laser engraved area 601 occupies the entire surface of the metal part. In this case, the docking accuracy of the electrical connector 630 and the metal part will not affect the contact area between the conductive channel 6301 of the electrical connector 630 and the laser engraved area 601 of the metal part, and the conductive channel 6301 of the electrical connector 630 can be ensured to completely fall into the laser engraved area 601 of the metal part. Such a setting can reduce the docking accuracy requirements of the electrical connector 630 and the metal part, and improve the assembly efficiency of the electrical connection assembly 600.
[0088] In this embodiment, the polymer elastomer 631 may be a rubber body, or in other words, the polymer elastomer 631 may be made of rubber material. For example, the material of the polymer elastomer 631 is silicone rubber. The rubber body has good elasticity, which can ensure that the polymer elastomer 631 is in close contact with the first structural member 610, and the polymer elastomer 631 is in close contact with the second structural member 620, thereby ensuring the reliability of electrical conduction of the electrical connector 630 assembly. In addition, the rubber body has a large density and a strong waterproof property, which can ensure that the polymer elastomer 631 isolates the salt solution outside the conductive elastic connection area of the electrical connection assembly 600.
[0089] As for how to add the conductive filler 632 into the polymer elastomer 631, the conductive filler 632 can be placed into a mold during the molding process of the polymer raw material, so that the conductive filler 632 is dispersed in the polymer raw material. Then, by applying a magnetic field to a local area of the polymer raw material, the conductive filler 632 is oriented and arranged in the polymer raw material. Thus, when the polymer raw material is molded into the polymer elastomer 631, the conductive filler 632 forms a conductive channel 6301 in the polymer elastomer 631.
[0090] For example, magnetic parts may be provided on both sides of the mold to apply a magnetic field to a local area of the polymer raw material, and the direction of the magnetic field may be the height direction of the polymer elastomer 631. Under the action of the magnetic field, the conductive filler 632 is oriented and arranged along the height direction of the polymer elastomer 631 to form a conductive channel 6301 extending along the height direction in the polymer elastomer 631. Moreover, the conductive filler 632 may occupy the entire height space of the polymer elastomer 631, so that the conductive channel 6301 formed by the conductive filler 632 extends to both side surfaces of the polymer elastomer 631.
[0091] Figure 6 This is a schematic diagram of the structure of the conductive filler in the electrical connector provided in the embodiment of the present application. Figure 6 As shown, in order to enable the conductive filler 632 to be oriented and arranged in the polymer elastomer 631, and the conductive filler 632 to form a conductive channel 6301 in the polymer elastomer 631, in this embodiment, the conductive filler 632 may include a magnetic core 6321 and a conductive coating 6322. The magnetic core 6321 is the inner core of the conductive filler 632, and the conductive coating 6322 is wrapped around the outside of the magnetic core 6321. The magnetic core 6321 and the conductive coating 6322 together constitute the conductive filler 632.
[0092] The magnetic core 6321 of the conductive filler 632 may be a metal material that can be attracted by a magnetic member. By arranging the magnetic member at a corresponding position of the polymer elastomer 631 and applying a magnetic field to a local area of the polymer elastomer 631, the magnetic core 6321 of the conductive filler 632 is oriented and arranged along the height direction of the polymer elastomer 631 under the action of the magnetic field force. Thus, the conductive filler 632 can be concentrated and dispersed in a local area of the polymer elastomer 631, forming a conductive channel 6301 extending to both side surfaces along the height direction of the polymer elastomer 631.
[0093] Exemplarily, the magnetic core 6321 of the conductive filler 632 may include ferromagnetic metal materials such as iron, nickel, and cobalt.
[0094] The ferromagnetic metal material constituting the magnetic core 6321 usually has relatively weak electrical conductivity. By wrapping the conductive coating 6322 on the outside of the magnetic core 6321, the conductive coating 6322 can be made of a metal material with strong electrical conductivity. The conductive fillers 632 arranged in a direction are in contact with each other through the conductive coating 6322, and the conductive coating 6322 can achieve good electrical conduction between the conductive fillers 632 to ensure the conductive performance of the conductive channel 6301 formed by the conductive fillers 632. Thus, the conductive channel 6301 of the electrical connector 630 is ensured, and reliable electrical connection between the first structural member 610 and the second structural member 620 can be achieved.
[0095] For example, the conductive plating layer 6322 of the conductive filler 632 may include a metal material with excellent conductive properties, such as silver, gold, and tin.
[0096] Continue to refer to Figure 4 and Figure 5 In some embodiments, the electrical connector 630 may further include an adhesive layer 633. The adhesive layer 633 may be provided on at least one side surface of the polymer elastomer 631 in the height direction. The electrical connector 630 is bonded to at least one of the first structural member 610 and the second structural member 620 through the adhesive layer 633 to achieve a fixed connection between the electrical connector 630 and the structural member.
[0097] When the first structural member 610 and the second structural member 620 include metal parts, the electrical connector 630 can be bonded to the metal parts through the adhesive layer 633 to fix the electrical connector 630 to the metal parts. In this way, it can ensure that the electrical connector 630 is firmly connected to the metal parts, and it can also ensure that the conductive channel 6301 of the electrical connector 630 is in reliable and good electrical contact with the metal parts. Therefore, the stability, reliability and electrical conduction performance of the electrical connection assembly 600 are guaranteed.
[0098] The adhesive layer 633 may avoid the area where the conductive channel 6301 is on the surface of the polymer elastomer 631. For example, the adhesive layer 633 may be arranged around the outer periphery of the conductive channel 6301 to ensure that the conductive channel 6301 can directly make electrical contact with the metal part. Furthermore, when the laser engraved area 601 is arranged on the surface of the metal part facing the polymer elastomer 631, the laser engraved area 601 may only occupy a local area on the surface of the metal part, and the conductive channel 6301 of the polymer elastomer 631 is in electrical contact with the laser engraved area 601 of the metal part, while the adhesive layer 633 may be arranged around the outer periphery of the laser engraved area 601.
[0099] When the first structural member 610 and the second structural member 620 have a circuit board, the electrical connector 630 can directly contact the circuit board through the polymer elastomer 631. In other words, the adhesive layer 633 may not be provided between the polymer elastomer 631 and the circuit board. On the one hand, the material properties of the circuit board and the elasticity of the polymer elastomer 631 can ensure that the polymer elastomer 631 and the circuit board fit tightly and reliably. On the other hand, it can also prevent the adhesive layer 633 from affecting the stability of the surface material of the circuit board and avoid the adhesive layer 633 from interfering with the devices arranged on the circuit board.
[0100] Taking the first structural member 610 as a circuit board and the second structural member 620 as a metal member as an example, the side surface of the polymer elastomer 631 facing the first structural member 610 may not be provided with the adhesive layer 633, and the polymer elastomer 631 is directly in close contact with the circuit board. The side surface of the polymer elastomer 631 facing the second structural member 620 may be provided with an adhesive layer 633, and the polymer elastomer 631 is bonded to the second structural member 620 through the adhesive layer 633, and the adhesive layer 633 avoids the conductive channel 6301 in the polymer elastomer 631, so that the conductive channel 6301 of the polymer elastomer 631 can be in electrical contact with the second structural member 620 (see Figure 4 and Figure 5 as shown).
[0101] Exemplarily, the adhesive layer 633 disposed on the surface of the polymer elastomer 631 may be a waterproof adhesive layer. The waterproof adhesive layer not only plays the role of bonding and fixing the electrical connector 630 to the first structural member 610 (or the second structural member 620), but also has waterproof and sealing effects. The waterproof adhesive layer may also provide waterproof protection for the conductive channel 6301 surrounded therebetween, so as to isolate the salt solution from the conductive channel 6301, and prevent the electrical connection component 600 from galvanic corrosion, so as not to affect the structural strength and electrical connection reliability of the electrical connection component 600.
[0102] Figure 7 A structural diagram of an electrical connector provided in an embodiment of the present application from one perspective. Figure 8 A structural diagram of the electrical connector provided in an embodiment of the present application from another perspective. Fig. 9 A side view of a polymer elastomer provided in an embodiment of the present application.
[0103] Reference Figures 7 to 9 As shown in any one, in this embodiment, at least one side surface of the polymer elastomer 631 in the height direction may be provided with a boss portion 6311. By providing a raised boss portion 6311 on the surface of the polymer elastomer 631, the polymer elastomer 631 contacts the first structural member 610 (or the second structural member 620) on the corresponding side through the boss portion 6311. Among them, the conductive channel 6301 in the polymer elastomer 631 may be located in the area where the boss portion 6311 is located, so as to achieve electrical contact between the polymer elastomer 631 and the first structural member 610 (or the second structural member 620) while achieving surface contact between the polymer elastomer 631 and the first structural member 610 (or the second structural member 620).
[0104] The polymer elastomer 631 is in electrical contact with the first structural member 610 (or the second structural member 620) by providing a boss portion 6311, and the boss portion 6311 protrudes on the surface of the polymer elastomer 631, and the volume occupied by the boss portion 6311 is relatively small. In this way, under the contact pressure between the boss portion 6311 and the first structural member 610 (or the second structural member 620), the boss portion 6311 can produce good elastic deformation, so that the boss portion 6311 is in close contact with the first structural member 610 (or the second structural member 620) on the corresponding side, ensuring that the conductive channel 6301 in the polymer elastomer 631 is reliably electrically connected with the first structural member 610 (or the second structural member 620). In addition, during the molding process of the polymer elastomer 631, the mold matches the shape of the polymer elastomer 631, and the mold can have a protrusion structure corresponding to the boss portion 6311, which is convenient for locating the position of the conductive channel 6301 and can accurately locate the position where the magnetic field is applied.
[0105] When the conductive channel 6301 is located in the central area in the planar direction of the polymer elastomer 631, a boss portion 6311 can be set in the central area of the surface of the polymer elastomer 631 to match it, so that the conductive channel 6301 located in the area where the boss portion 6311 is located can be located in the central area of the polymer elastomer 631.
[0106] Combination Figure 7 and Figure 8As shown, as an embodiment, both side surfaces of the polymer elastomer 631 in the height direction may be provided with bosses 6311, and the polymer elastomer 631 is in electrical contact with the first structural member 610 through the bosses 6311, and the polymer elastomer 631 is also in electrical contact with the second structural member 620 through the bosses 6311. At this time, the bosses 6311 located on both side surfaces of the polymer elastomer 631 may be coaxially arranged, and the contact pressure between the polymer elastomer 631 and the first structural member 610, and the contact pressure between the polymer elastomer 631 and the second structural member 620 may be located on the same straight line to improve the force stability of the electrical connection component 600. For example, the bosses 6311 on both side surfaces of the polymer elastomer 631 may be located on the center line of the polymer elastomer 631 to achieve overall force balance of the electrical connection component 600.
[0107] Among them, combined Figure 5 and Figure 7 As shown, taking the direct contact between the polymer elastic body 631 and the first structural member 610 as an example, for example, the first structural member 610 is a circuit board, and the boss portion 6311 on the side surface of the polymer elastic body 631 facing the first structural member 610 is in electrical contact with the first structural member 610. In this case, a positioning groove 602 (see FIG. 602 ) may be provided on the side surface of the first structural member 610 facing the polymer elastic body 631. Figure 5 As shown), the positioning groove 602 is, for example, located in the central area of the surface of the first structural member 610, and the boss portion 6311 of the polymer elastomer 631 can be inserted into the positioning groove 602 to avoid the risk of deviation, shaking, etc. between the polymer elastomer 631 and the first structural member 610, thereby ensuring that the connection between the first structural member 610 and the polymer elastomer 631 is stable and reliable.
[0108] Combination Figure 5 and Figure 8 As shown, taking the bonding between the polymer elastomer 631 and the second structural member 620 through the adhesive layer 633 as an example, for example, the second structural member 620 is a metal member, the boss portion 6311 on the side surface of the polymer elastomer 631 facing the second structural member 620 is in electrical contact with the second structural member 620, the adhesive layer 633 is arranged around the outer periphery of the boss portion 6311, and the adhesive layer 633 is bonded to the second structural member 620.
[0109] As another embodiment, the boss portion 6311 can be provided only on one side surface of the polymer elastomer 631 in the height direction. In this case, the boss portion 6311 can be provided on the side surface covered by the adhesive layer 633. Continuing to take the first structural member 610 as a circuit board and the second structural member 620 as a metal member as an example, the adhesive layer 633 covers the side surface of the polymer elastomer 631 facing the second structural member 620, and the boss portion 6311 can also be provided on the side surface of the polymer elastomer 631 facing the second structural member 620. In this way, the adhesive layer 633 can be prevented from interfering with the boss portion 6311, and the raised boss portion 6311 can occupy the height space where the adhesive layer 633 is located, so that when the adhesive layer 633 and the second structural member 620 are bonded, the boss portion 6311 can contact the surface of the second structural member 620.
[0110] In addition, combined Figure 7 and Fig. 9 As shown, in some embodiments, at least one side surface of the polymer elastomer 631 in the height direction has an inclined portion 6312, and the inclined portion 6312 can extend from the edge of the polymer elastomer 631 to the center of the polymer elastomer 631. The height of the polymer elastomer 631 gradually increases from the outer edge of the inclined portion 6312 (the edge of one side of the outer side wall of the polymer elastomer 631) to the inner edge of the inclined portion 6312 (the edge of one side of the inclined portion 6312 close to the center of the polymer elastomer 631).
[0111] By providing an inclined portion 6312 on the surface of the polymer elastomer 631, a slope is formed in the edge area of the polymer elastomer 631. In this way, the thickness of the edge area of the corresponding side of the polymer elastomer 631 can be reduced, which is beneficial to the elastic deformation of the polymer elastomer 631, so that the polymer elastomer 631 and the first structural member 610 (or the second structural member 620) on the corresponding side are more closely contacted, ensuring that the conductive channel 6301 in the polymer elastomer 631 and the first structural member 610 (or the second structural member 620) are reliably electrically contacted. In addition, since the inclined portion 6312 is a straight inclined surface, the stress concentration phenomenon of the polymer elastomer 631 in the area where the inclined portion 6312 is located can be avoided, so as to improve the stability and reliability of the polymer elastomer 631.
[0112] When the side of the polymer elastomer 631 is provided with a boss portion 6311, a plane portion can be provided between the inclined portion 6312 and the boss portion 6311 as a transition. When the boss portion 6311 on the side of the polymer elastomer 631 is inserted into the positioning groove 602 provided on the first structural member 610 (or the second structural member 620), the plane portion between the inclined portion 6312 and the boss portion 6311 can abut against the surface of the first structural member 610 (or the second structural member 620) (see Figure 5As shown). In this way, the first structural member 610 (or the second structural member 620) squeezes the plane portion of the polymer elastomer 631, and the polymer elastomer 631 is elastically deformed under the action of the inclined portion 6312, so that the plane portion of the polymer elastomer 631 can be in close contact with the first structural member 610 (or the second structural member 620), and the force is transmitted to the boss portion 6311 of the polymer elastomer 631, so that the boss portion 6311 can be in closer contact with the first structural member 610 (or the second structural member 620). When the side of the polymer elastomer 631 is provided with a glue layer 633, the plane portion of the polymer elastomer 631 can serve as a receiving surface for the glue layer 633.
[0113] Combination Figure 5 and Fig. 9 As shown, as an example, the polymer elastomer 631 is in direct contact with the first structural member 610, for example, the first structural member 610 is a circuit board. At this time, a side surface of the polymer elastomer 631 facing the first structural member 610 can be provided with an inclined portion 6312 to increase the elastic deformation performance of the polymer elastomer 631 on this side. The boss portion 6311 of the side surface of the polymer elastomer 631 facing the first structural member 610 can be inserted into the positioning groove 602 of the first structural member 610, and the plane portion of the polymer elastomer 631 on this side is against the surface of the first structural member 610. The polymer elastomer 631 and the second structural member 620 are bonded by an adhesive layer 633, for example, the second structural member 620 is a metal member. At this time, the inclined portion 6312 may not be set on the side surface of the polymer elastomer 631 facing the second structural component 620. The side surface of the polymer elastomer 631 is a flat portion around the boss portion 6311, and the adhesive layer 633 is attached to the flat portion around the boss portion 6311 to ensure that the adhesive layer 633 has sufficient coverage area.
[0114] The embodiment of the present application further provides a method for manufacturing an electrical connector 630, and the method is used to manufacture the aforementioned electrical connector 630. The method is described in detail below.
[0115] Fig.10 This is a flowchart of the steps of the method for manufacturing the electrical connector provided in the embodiment of the present application. Fig.10 As shown, the method for making electrical connection provided in this embodiment includes the following steps:
[0116] S100 , placing the polymer raw material into a mold for compression molding to form a polymer elastomer 631 .
[0117] First, a polymer raw material is put into a mold and heated, and then the polymer raw material is molded into a polymer elastic body 631 of a desired shape and size.
[0118] Taking the polymer elastomer 631 as the aforementioned rubber body as an example, the polymer raw material may include raw rubber and various compounding agents, wherein the raw rubber is the base material of the rubber body, and the compounding agent is an auxiliary material added to improve certain properties of the rubber body. In addition, the polymer raw material may also include fiber materials such as cotton, linen, wool, artificial fiber, and synthetic fiber, and the fiber material may be used as the skeleton material of the rubber body to enhance the mechanical strength of the rubber body and prevent the rubber body from producing plastic deformation.
[0119] S200. During the compression molding process, a conductive filler 632 is added into the polymer raw material, and a magnetic field is applied to a local area of the polymer raw material to orient the conductive filler 632 to form a conductive channel 6301 in the polymer elastomer 631; wherein the conductive channel 6301 extends along the height direction of the polymer elastomer 631 to both side surfaces of the polymer elastomer 631.
[0120] It should be noted that S200 does not refer to a process performed after S100, but refers to a process that can be performed simultaneously during the process of S100.
[0121] Specifically, during the process of molding the polymer raw material in the mold, the conductive filler 632 is added into the polymer raw material. As mentioned above, the conductive filler 632 can be oriented under the action of a magnetic field. For example, the conductive filler 632 includes a magnetic core 6321 and a conductive coating 6322 wrapped around the outside of the magnetic core 6321.
[0122] After the conductive filler 632 is put into the polymer raw material, a magnetic field is applied to a local area of the polymer raw material, so that the conductive filler 632 is oriented and arranged under the action of the magnetic field, and the conductive fillers 632 are in close contact with each other, so as to form a conductive channel 6301 in the formed polymer elastomer 631. The direction of the magnetic field is, for example, the height direction of the polymer elastomer 631, so that the conductive filler 632 is oriented and arranged along the height direction of the polymer elastomer 631, and the conductive filler 632 occupies the entire space in the height direction of the polymer elastomer 631. Thus, the conductive channel 6301 formed in the polymer elastomer 631 can extend along the height direction of the polymer elastomer 631, and the conductive channel 6301 extends to both side surfaces of the polymer elastomer 631.
[0123] Exemplarily, magnetic members may be provided on both sides of the mold, and the positions of the magnetic members may correspond to the target positions of the conductive channel 6301. The magnetic members on both sides are provided, for example, along the height direction of the mold. A magnetic field is generated between the magnetic members on both sides, and the direction of the magnetic field is the height direction of the polymer elastomer 631 to be molded, so that the conductive filler 632 is oriented and arranged along the height direction of the polymer elastomer 631.
[0124] If at least one side surface of the polymer elastomer 631 in the height direction has a boss portion 6311, the polymer elastomer 631 is in electrical contact with the first structural member 610 (or the second structural member 620) on the corresponding side through the boss portion 6311. At this time, the conductive channel 6301 that needs to be formed in the polymer elastomer 631 can be located in the area where the boss portion 6311 is located, so that when the boss portion 6311 is in contact with the first structural member 610 (or the second structural member 620), the conductive channel 6301 located in the area where the boss portion 6311 is located can achieve electrical conduction between the electrical connector 630 and the first structural member 610 (or the second structural member 620).
[0125] In this regard, a magnetic field may be applied to the region where the boss portion 6311 of the polymer elastomer 631 to be molded is located, so that the conductive filler 632 is oriented and arranged in the region where the boss portion 6311 is located, so as to form a conductive channel 6301 in the region where the boss portion 6311 is located. For example, a magnetic member may be provided at a position on the mold corresponding to the boss portion 6311 of the polymer elastomer 631 to be molded, so that the magnetic field generated by the magnetic member is located in the region where the boss portion 6311 of the polymer elastomer 631 is located.
[0126] If at least one side surface of the polymer elastic body 631 in the height direction is provided with a glue layer 633 (see Figure 8 As shown in FIG. 1 , the electrical connector 630 is bonded to the first structural member 610 (or the second structural member 620) on the corresponding side through the adhesive layer 633. At this time, after the polymer elastomer 631 is molded and the conductive channel 6301 is formed in the polymer elastomer 631, the adhesive layer 633 is further formed on the surface of the polymer elastomer 631.
[0127] A separate adhesive layer 633 may be prepared in advance and attached to the surface of the polymer elastomer 631. Alternatively, the adhesive layer 633 may be formed on the surface of the polymer elastomer 631 through a dispensing process. The present application embodiment does not specifically limit this. For example, the adhesive layer 633 may be made of a waterproof material, or in other words, the adhesive layer 633 may be a waterproof adhesive layer.
[0128] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.
[0129] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.
Claims
1. An electrical connector, characterized in that: The electrical connector is disposed between a first structural member and a second structural member of the electronic device, wherein one of the first structural member and the second structural member is a circuit board and the other is a metal member, and the electrical connector includes: polymer elastomers; A conductive filler is dispersed in a local area of the polymer elastomer to form a conductive channel in the polymer elastomer; Wherein, the conductive path extends along the height direction of the polymer elastomer, and the conductive path extends to both side surfaces of the polymer elastomer in the height direction; In the plane direction of the polymer elastomer, the conductive path is located in the central area of the polymer elastomer; At least one side surface of the polymer elastomer in the height direction has an inclined portion, and the inclined portion extends from the edge of the polymer elastomer to the center of the polymer elastomer; the side surface of the polymer elastomer provided with the inclined portion is used to abut against the circuit board; wherein the height of the polymer elastomer gradually increases from the outer edge of the inclined portion to the inner edge of the inclined portion; At least one side surface of the polymer elastomer in the height direction has a boss portion, and the conductive path is located in the area where the boss portion is located; The adhesive layer is arranged on at least one side surface of the polymer elastomer in the height direction and surrounds the outer periphery of the boss portion.
2. The electrical connector according to claim 1, characterized in that: The conductive filler comprises a magnetic core and a conductive coating, wherein the conductive coating is wrapped around the outside of the magnetic core; Wherein, under the action of magnetic field force, the magnetic core makes the conductive filler arranged in a directional manner to form the conductive channel.
3. The electrical connector according to claim 1, characterized in that: The polymer elastomer is a rubber body.
4. The electrical connector according to claim 3, characterized in that: Both side surfaces of the polymer elastomer in the height direction have the boss portions, and the boss portions on both sides are coaxially arranged.
5. The electrical connector according to claim 4, characterized in that: The adhesive layer is a waterproof adhesive layer.
6. A method for manufacturing an electrical connector, characterized in that: include: Putting the polymer raw material into a mold for compression molding to form a polymer elastomer; During the compression molding process, a conductive filler is added to the polymer raw material, and a magnetic field is applied to the central area of the polymer raw material to align the conductive filler so as to form a conductive channel in the polymer elastomer; wherein the conductive channel extends along the height direction of the polymer elastomer to both side surfaces of the polymer elastomer; At least one side surface of the molded polymer elastomer in the height direction has an inclined portion, and the inclined portion extends from the edge of the polymer elastomer to the center of the polymer elastomer; the side surface of the polymer elastomer provided with the inclined portion is used to abut against the circuit board; wherein, from the outer edge of the inclined portion to the inner edge of the inclined portion, the height of the polymer elastomer gradually increases; the other side surface of the polymer elastomer is used to abut against the metal part; At least one side surface of the polymer elastomer in the height direction has a boss portion, and the conductive path is located in the area where the boss portion is located; a glue layer is provided on at least one side surface of the polymer elastomer in the height direction so that the glue layer surrounds the periphery of the boss portion.
7. The method for manufacturing an electrical connector according to claim 6, characterized in that: Forming a conductive path in the polymer elastomer, comprising: A magnetic field is applied in the region where the boss portion is located, so that the conductive filler is oriented and arranged in the region where the boss portion is located, so as to form the conductive channel in the region where the boss portion is located.
8. An electrical connection assembly, characterized in that: include: A first structural member, a second structural member, and an electrical connector as described in any one of claims 1 to 5, wherein the electrical connector is arranged between the first structural member and the second structural member, the first structural member and the second structural member are electrically connected through a conductive path of the electrical connector, wherein one of the first structural member and the second structural member is a circuit board, and the other is a metal member.
9. The electrical connection assembly according to claim 8, characterized in that: A surface of the metal piece on one side facing the electrical connector has a laser engraved area, and the conductive channel of the electrical connector is in electrical contact with the laser engraved area.
10. The electrical connection assembly according to claim 9, characterized in that: The adhesive layer of the electrical connector is bonded to the metal component, and the adhesive layer is arranged around the periphery of the laser engraving area.
11. An electronic device, characterized in that: The invention comprises the electrical connection assembly as claimed in any one of claims 8 to 10.
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