WO2021208731A1 - 均热板及其制作方法、中框组件及其制作方法及电子设备 - Google Patents

均热板及其制作方法、中框组件及其制作方法及电子设备 Download PDF

Info

Publication number
WO2021208731A1
WO2021208731A1 PCT/CN2021/084122 CN2021084122W WO2021208731A1 WO 2021208731 A1 WO2021208731 A1 WO 2021208731A1 CN 2021084122 W CN2021084122 W CN 2021084122W WO 2021208731 A1 WO2021208731 A1 WO 2021208731A1
Authority
WO
WIPO (PCT)
Prior art keywords
middle frame
plate
connecting piece
metal layer
hole
Prior art date
Application number
PCT/CN2021/084122
Other languages
English (en)
French (fr)
Inventor
黄礼忠
乔艳党
毛健
王培军
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP21788007.9A priority Critical patent/EP4123252A4/en
Priority to US17/919,635 priority patent/US20230171924A1/en
Publication of WO2021208731A1 publication Critical patent/WO2021208731A1/zh

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/04Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure
    • F28D15/046Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure characterised by the material or the construction of the capillary structure
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2029Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
    • H05K7/20336Heat pipes, e.g. wicks or capillary pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/0233Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes the conduits having a particular shape, e.g. non-circular cross-section, annular
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/12Elements constructed in the shape of a hollow panel, e.g. with channels
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16Constructional details or arrangements
    • G06F1/20Cooling means
    • G06F1/203Cooling means for portable computers, e.g. for laptops
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00Details of semiconductor or other solid state devices
    • H01L23/34Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/42Fillings or auxiliary members in containers or encapsulations selected or arranged to facilitate heating or cooling
    • H01L23/427Cooling by change of state, e.g. use of heat pipes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0249Details of the mechanical connection between the housing parts or relating to the method of assembly
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00Printed circuits
    • H05K1/02Details
    • H05K1/0201Thermal arrangements, e.g. for cooling, heating or preventing overheating
    • H05K1/0203Cooling of mounted components
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0028Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for cooling heat generating elements, e.g. for cooling electronic components or electric devices
    • F28D2021/0029Heat sinks
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2200/00Indexing scheme relating to G06F1/04 - G06F1/32
    • G06F2200/20Indexing scheme relating to G06F1/20
    • G06F2200/201Cooling arrangements using cooling fluid
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets

Definitions

  • This application relates to the field of mobile communications, and in particular to a soaking plate and a manufacturing method thereof, a middle frame assembly and a manufacturing method thereof, and electronic equipment.
  • a two-phase heat dissipation method such as a soaking plate
  • the soaking plate is usually made of copper metal material. After the copper alloy material is sintered at high temperature, the strength and hardness are reduced, and the whole cannot be used as a structural load-bearing part, and it is prone to deformation, dents and other defects after being subjected to a slight external force, resulting in loss of thermal conductivity.
  • the high density of copper alloy is not conducive to the weight reduction of the whole machine.
  • the combination of the soaking plate and the middle frame of the mobile phone cannot fully meet the product requirements.
  • the thickness of the overlap between the soaking plate and the middle frame is large, which is not conducive to the thinning of the whole machine.
  • the soaking plate and the middle frame are usually bonded together. The bonding results in poor heat transfer performance and limited bonding strength.
  • How to make the soaking plate, solve the problem of low strength and high density of the soaking plate, and how to set the combination of the soaking plate and the middle frame to achieve a high-strength and ultra-thin connection between the soaking plate and the middle frame, and make the soaking Good thermal conductivity between the board and the middle frame should be the direction of industry research and development.
  • This application provides a soaking plate and its manufacturing method, a middle frame assembly and its manufacturing method, and electronic equipment.
  • the soaking plate has the characteristics of high strength and low density through the use of composite plates, and the unique design of the soaking plate is combined with the
  • the combination of the middle frame realizes a high-strength and ultra-thin connection between the heat spreader and the middle frame, and makes the heat conduction between the heat spreader and the middle frame have good performance.
  • this embodiment provides a heat equalizing plate.
  • the heat equalizing plate includes a first cover plate and a second cover plate.
  • the second cover plate includes a first metal layer and a second metal layer.
  • a metal layer includes a body region and an edge region surrounding the body region. The second metal layer overlaps the body region. The overlap of the second metal layer and the body region means that the second metal layer is provided on the surface of the body region. , The edge area is not covered by the second metal layer.
  • the edge area is used for the edge joining of the first cover plate to form a closed cavity between the first cover plate and the second cover plate, and the second metal layer is located in the closed cavity
  • a capillary structure is formed on the surface of the second metal layer, and the material strength of the first metal layer is greater than the material strength of the second metal layer.
  • the second cover plate is set as a composite plate, that is, the second cover plate includes a first metal layer and a second metal layer, and the material strength of the first metal layer is greater than the strength of the second metal layer, so that the soaking plate has High-strength characteristics.
  • the material of the second metal layer may be a metal material containing copper, such as a copper alloy, which is easy to produce a capillary structure and has stability.
  • a metal material containing copper such as a copper alloy
  • the strength and hardness of the plate are reduced, and the whole cannot be used as a structural load-bearing member.
  • the soaking plate made of copper as a whole is prone to deformation, dents and other defects after receiving a slight external force, resulting in loss of thermal conductivity.
  • the first metal of this application The material strength of the layers is greater than that of the copper layer, so that the soaking plate has higher strength as a whole.
  • the capillary structure of the present application is formed by sintering on the copper layer, which can avoid the problems of difficulty in forming the capillary structure on other metal materials and low yield, and realizes the function of enhancing the structural strength and heat dissipation performance of the soaking plate.
  • the strength of the material of the first cover plate may also be greater than the strength of the material of the second metal layer.
  • the thickness of the copper layer is less than 0.15mm in the direction perpendicular to the plane where the first metal layer is located.
  • the role of the copper layer is to make a capillary structure on the copper layer. Or the copper mesh is placed on the copper layer and sintered to form a capillary structure. Therefore, the thickness of the copper layer can be thinner. Reducing the thickness of the copper layer is beneficial to reduce the thickness of the soaking plate and realize the thinning of the whole machine, and the thickness of the copper layer is relatively small. When it is thin, a larger space can be reserved in the cavity to inject more working fluids, which is beneficial to improve the heat dissipation performance of the soaking plate.
  • the copper layer can be a copper metal with a thickness of 0.05 mm. The thickness can also be 0.03mm, and the thickness of the copper layer can be adjusted as required.
  • the edge area and the edge of the first cover plate are hermetically connected by welding.
  • the welding and sealing can enhance the bonding strength of the first metal layer and the first cover plate, and prevent the liquid working fluid in the cavity from leaking.
  • the first cover plate may include a third metal layer, and the strength of the material of the third metal layer is greater than the strength of the material of the second metal layer.
  • the material of the third metal layer and the first metal layer are the same type of metal material.
  • the same type of metal material means that the material of the third metal layer is the same as the element with the highest content in the first metal layer.
  • the material of the third metal layer is titanium alloy or stainless steel.
  • the material of the third metal layer and the first metal layer may be both titanium alloy or third metal layer.
  • the material of the metal layer and the material of the first metal layer can also be stainless steel at the same time, and the material of the third metal layer and the material of the first metal layer can also be other high-strength metal materials.
  • the material of the third metal layer and the first metal layer are different types of metal materials with solderability.
  • Solderability means that the highest content of elements is different, the burning temperature of the low melting point metal is lower than the melting point of the high melting point metal, and there is no brittle phase formation in the bonding zone of the two metals, and the hardness of the weld is greater than 80% of the lowest hardness of the two metals above.
  • the material of the third metal layer may be a titanium alloy, and the material of the first metal layer is a material that has weldability with the third metal layer (ie, titanium alloy); or The material of the first metal layer is a titanium alloy, and the material of the third metal layer is a material that has weldability with the first metal layer (ie, a titanium alloy).
  • the first cover plate includes a first plate body
  • the second cover plate includes a second plate body
  • the first plate body and the second plate body are relatively spaced apart
  • the first plate body is provided with a first opening
  • the second plate body is provided with a second opening
  • the heat equalizing plate includes a sealing structure
  • the sealing structure is arranged between the first opening and the second opening. Is connected to the first plate body and the second plate body in a sealing manner, is connected to the first plate body and the second plate body, and collectively surrounds the closed cavity, the first opening and the The second opening communicates with the sealing structure to form a through hole penetrating and forming the heat equalizing plate.
  • the through hole is used to pass through the transmission line
  • the transmission line may be a flexible circuit board, and the flexible circuit board is connected to the printed circuit board through the through hole of the heat equalizing plate.
  • the transmission line directly passes through the through holes of the heat spreading plate to connect the electronic devices on both sides of the heat spreading plate, which can make the extension path of the transmission line shorter and does not need to be surrounded by the heat spreading plate.
  • This structure is not only conducive to saving electronic equipment
  • the wiring space inside can also ensure the signal transmission quality of the transmission line.
  • the sealing structure includes a first boss and a second boss, the first boss is a structure integrally formed with the first plate body, and the first boss is formed on At the edge position of the first opening, the second boss is a structure integrally formed with the second plate body, the second boss is formed at the edge position of the second opening, and the first A boss is abutted with the second boss, so that the first opening and the second opening communicate with each other to form the through hole of the heat equalizing plate.
  • the butt joint of the first boss and the second boss can be welded to form a sealing structure to close the cavity.
  • the sealing structure includes a first boss, the first boss is a structure integrally formed with the first plate body, and the first boss is formed on the first plate. At the edge position of the first opening, there is no need to provide a boss structure at the second opening of the second plate.
  • the first boss extends to the second through hole of the second plate and is in contact with the The second plate body is sealed and welded so that the first opening and the second opening are communicated to form the through hole of the heat equalizing plate.
  • the sealing structure in this embodiment is an integral structure with the first plate body.
  • the sealing structure includes a second boss, the second boss is a structure integrally formed with the second plate body, and the second boss is formed on the second plate body.
  • the first opening of the first plate does not need to be provided with a boss structure, and the second boss extends to the first opening of the first plate, And it is sealed and welded with the first plate body, so that the second opening and the first opening are communicated to form the through hole of the heat equalizing plate.
  • the sealing structure in this embodiment is an integral structure with the second plate body.
  • the sealing structure is a single structure independent of the first plate body and the second plate body, the sealing structure surrounds a hollow channel, and the sealing structure includes a first plate body. Connecting end and second connecting end; at the edge position of the first opening, the first connecting end is sealed and welded to the first plate; at the edge position of the second opening, the The second connecting end is sealed and welded to the second plate body, and the hollow channel of the sealing structure is connected between the first opening and the second opening to form the communication of the heat equalizing plate. hole.
  • the sealing structure and the soaking plate are separated structures, and the two ends of the sealing structure are butted with the plates at the first opening and the second opening, and the cavity is sealed by welding.
  • the above-mentioned sealing structure may be a sleeve-type structure.
  • the sealing structure may also be a sheet-like structure.
  • the two ends of the sheet-like sealing structure respectively surround the first opening of the first plate and the second The second openings of the two plates jointly surround the closed cavity.
  • the sheet-shaped sealing structure can have flexible features, can be flexibly set in shape, and save space.
  • the sealing structure can also be in the form of a paste.
  • the paste metal is filled in the gap between the first plate and the second plate.
  • the paste-like substance is solidified by warm pressure or thermal diffusion to form a sealed structure.
  • the paste-like sealing structure can be formed by filling the gap with a paste-like substance with a certain degree of deformation and curing it.
  • the plane where the first plate is located is the reference plane; the extension direction of the through hole of the heat equalizing plate is perpendicular to the reference plane, or the heat equalizing plate
  • the angle between the extending direction of the through hole and the reference plane is less than 90°.
  • the extending direction of the through hole of the heat equalizing plate can be set as required.
  • the sealing structure is stepped, or the inner wall of the sealing structure is smoothly arranged.
  • the shape of the inner wall of the sealing structure is not limited, as long as it can pass through the transmission line without affecting the performance of the transmission line.
  • a connecting structure is provided in the packaging cavity, and two ends of the connecting structure are fixedly connected to the first cover plate and the second cover plate to prevent the first cover plate from being heated.
  • the cover plate and the second cover plate are prone to deformation such as bag lifting, warping, etc., causing problems with interference with other devices.
  • the connecting structure may be an integral structure with the first cover plate, and welding is performed on the outer surface of the second cover plate to fix the connecting structure to the second cover plate, or the connecting structure may be connected to the second cover plate. It is a one-piece structure and is welded to the first cover plate.
  • the present application provides a method for manufacturing a soaking plate.
  • the first cover plate is manufactured, the first cover plate includes a third metal layer; the second cover plate is manufactured, and the second cover plate includes the first metal.
  • Layer and a second metal layer the second metal layer may be a copper layer, the first metal layer includes a body region and an edge region surrounding the body region, the second metal layer overlaps the body region, and the second metal layer
  • the overlap between the metal layer and the main body area means that the second metal layer is provided on the surface of the main body area, and the edge area is not covered by the second metal layer.
  • the material strength of the first metal layer is greater than the material strength of the second metal layer; a capillary structure is fabricated on the surface of the second metal layer of the second cover plate; and the first cover plate and the The second cover plate fixedly connects the edge area and the edge of the third metal layer to form a closed cavity between the first cover plate and the second cover plate.
  • the strength of the material of the third metal layer is greater than the strength of the material of the second metal layer.
  • the third metal layer is made as the first cover plate
  • the first metal layer and the copper layer are made as the second cover plate
  • the first cover plate and the second cover plate are fixedly connected to form a soaking plate with a closed cavity
  • the strength of the material of the third metal layer and the material of the first metal layer are both greater than the strength of the copper layer
  • the soaking plate has the characteristics of high strength.
  • the capillary structure of the present application is formed by sintering on the copper layer, which can avoid the problems of difficulty in forming the capillary structure on other metal materials and low yield, and realizes the function of enhancing the structural strength and heat dissipation performance of the soaking plate.
  • the soaking plate has good structural strength, and when it is used in electronic equipment, it can be used as a carrier to carry components in the electronic equipment.
  • the copper layer may be fixed to the main body area of the first metal layer by means of electroplating, rolling, thermal diffusion, etc., to form the second cover plate.
  • the edge area and the edge of the first cover plate are hermetically connected by welding.
  • the welding and sealing can enhance the bonding strength of the first metal layer and the third metal layer, and prevent the liquid working fluid in the cavity from leaking.
  • the material of the third metal layer and the material of the first metal layer are the same type of metal material.
  • the same type of metal material means that the material of the third metal layer is the same as the element with the highest content in the first metal layer.
  • the material of the third metal layer is titanium alloy or stainless steel.
  • the material of the third metal layer and the first metal layer may be both titanium alloy or third metal layer.
  • the material of the metal layer and the material of the first metal layer can also be stainless steel at the same time, and the material of the third metal layer and the material of the first metal layer can also be other high-strength metal materials.
  • the material of the third metal layer and the first metal layer are different types of metal materials with solderability.
  • Solderability means that the highest content of elements is different, the burning temperature of the low melting point metal is lower than the melting point of the high melting point metal, and there is no brittle phase formation in the bonding zone of the two metals, and the hardness of the weld is greater than 80% of the lowest hardness of the two metals above. When two metals with weldability are welded, the bonding strength of the third metal layer and the first metal layer can be improved.
  • the material of the third metal layer is a titanium alloy
  • the first metal layer is a material that has weldability with the third metal layer (ie, titanium alloy); or the first metal
  • the layer is a titanium alloy
  • the material of the third metal layer is a material that has weldability with the first metal layer (ie, the titanium alloy).
  • a first opening is provided on the first plate body forming the first cover plate
  • a second opening is provided
  • a second opening is formed between the first opening and the second opening.
  • a sealing structure is formed, the sealing structure is connected with the first plate body and the second plate body, and collectively surrounds the closed cavity, and at the sealing structure, the first opening and the second opening are connected to form A through hole passing through the heat equalizing plate.
  • the structure of the sealing structure can include but is not limited to the following schemes, namely:
  • the part of the sealing structure is an integral structure with the first plate body, and the part of the sealing structure is an integral structure with the second plate body.
  • the two parts are sealed during the process of combining the first cover plate and the second cover plate.
  • the structure is butt-sealed and fixed.
  • the sealing structure is an integral structure with the first plate body. In the process of combining the first cover plate and the second cover plate, the sealing structure is far away from the end of the first plate body and the second plate body. The edges of the two openings are combined and sealed and fixed.
  • the sealing structure and the second plate body are an integral structure.
  • the end of the sealing structure away from the second plate body and the first plate body The edges of an opening are combined and sealed and fixed.
  • the sealing structure is a single structure independent of the first plate body and the second plate body, and the two ends of the sealing structure are sealed and connected to the first hole edge position and the The edge position of the second opening of the second board.
  • the sealing structure under this scheme can be a sleeve-like structure, a flexible sheet-like structure, or a paste-like structure.
  • the first opening and the second opening can be directly opposite, that is, taking the plane where the first plate is located as the reference plane, in the vertical In the direction of the reference plane, the first opening and the second opening are directly opposite; the first opening and the second opening can also be arranged in a staggered manner, so that the through holes of the heat spreading plate formed in this way are inclined, that is, The included angle between the extending direction of the through hole of the heat equalizing plate and the reference plane is less than 90°.
  • the process of combining the first cover plate and the second cover plate it further includes fixing the two ends of the connecting structure in the packaging cavity to the first cover plate, respectively And the second cover plate to avoid the problem of interference with other devices caused by deformation of the first cover plate and the second cover plate after the heat spreading plate is heated.
  • the present application provides a middle frame assembly
  • the middle frame assembly includes a middle frame, a connecting piece and a heat equalizing plate
  • the middle frame is provided with a through hole
  • the connecting piece is fixedly connected to the middle frame
  • a part of the connecting piece is exposed to form a welding part
  • the welding part is located on the inner wall of the through hole or the surface of the middle frame for carrying the devices in the electronic device.
  • the heat spreading plate includes a heat spreading plate main body and a surrounding The skirt of the heat equalizing plate body, the equalizing plate is accommodated in the through hole, and the skirt is welded to the connecting piece, so that the equalizing plate and the middle frame are combined together As a carrier in electronic equipment.
  • the connecting piece and the skirt are of the same type of metal material, or the connecting piece and the skirt are of different types of metal materials with weldability.
  • the same type of metal material refers to the same element with the highest content in the metal material. When the same type of metal material is welded, no brittle phase is formed, and can have a higher welding strength. Solderability refers to the difference in elements with the highest content.
  • the burning temperature of the low melting point metal is lower than the melting point of the high melting point metal, and there is no brittle phase formation in the bonding zone of the two metals.
  • the hardness of the welded joint is greater than 80% of the lowest hardness of the two metals. .
  • the connecting piece is integrated with the middle frame, and the connecting piece and the soaking plate are welded to realize the high-strength and ultra-thin connection between the middle frame and the soaking plate, and make a good connection between the soaking plate and the middle frame.
  • Thermal conductivity Specifically, the edges of the middle frame and the soaking plate are usually of different materials, and the middle frame and the soaking plate of different materials are directly welded, which is easy to produce a brittle phase, which is not conducive to the improvement of the bonding strength of the middle frame and the soaking plate.
  • the traditional middle frame and the soaking plate can also be combined by pasting, resulting in poor heat transfer performance and limited bonding strength.
  • the connecting piece is used as the transitional structure between the middle frame and the soaking plate, the connecting piece is fixed to the middle frame, and the connecting piece and the skirt of the soaking plate are welded, because the connecting piece and the skirt of the soaking plate
  • the edges are the same type of metal material, or the connecting piece and the skirt are different types of metal materials with weldability.
  • the connecting piece and the soaking plate can have higher welding strength, which improves the soaking plate. Combination strength with the middle frame.
  • the heat equalizing plate is located at the position of the through hole of the middle frame, which will not increase or less increase the thickness of the middle frame, and realize the ultra-thin connection between the middle frame and the heat equalizing plate.
  • the connecting piece is made of metal, and there is a metal connection between the soaking plate and the middle frame, which is conducive to heat conduction between the two.
  • the heat equalizing plate is any one of the possible implementation manners described in the first aspect, and the edge area of the first metal layer and the third The edges of the metal layer are joined to form the skirt.
  • the soaking plate may also be a soaking plate with other structural forms, which is not limited in this application.
  • a first limiting structure is provided at the junction of the connecting piece and the middle frame to realize the limiting in the first direction; the connecting piece and the skirt are formed by welding
  • the second limiting structure realizes the limiting in the second direction, and the first direction and the second direction are opposite directions.
  • the connecting piece and the middle frame are combined by embedding, the connecting piece is easy to fall off from the middle frame.
  • the connecting piece and the skirt are welded to form a second limiting structure, which prevents the connecting piece from falling off along the second direction.
  • the first limiting structure and the second limiting structure work together to make the coupling between the middle frame and the heat equalizing plate more stable, and the middle frame assembly can be made thinner.
  • the middle frame The upper part used to join the connecting piece does not require a very thick material.
  • the first and second restraint structures can make up for the lack of strength of the thinner middle frame, making the middle frame assembly more effective. The strength is guaranteed, and the connection between the connecting piece and the middle frame is stable and reliable.
  • the connecting piece is embedded in the middle frame, and the connecting piece includes a first end surface and a second end surface opposite to each other, and a connection between the first end surface and the second end surface.
  • the side surface is located inside the middle frame, the second end surface is exposed on the surface of the middle frame, and the exposed part of the second end surface is used as a welding part for welding with the skirt.
  • the first end surface can also be exposed on the surface of the middle frame, and the first end surface can also be located inside the middle frame. For example: Exposed on the surface of the middle frame.
  • the first limiting structure is located on the first end surface of the connecting piece
  • the second limiting structure is located on the second end surface of the connecting piece
  • the first The limiting structure includes a limiting foot formed on the first end surface of the connecting piece and a limiting platform formed on the middle frame, and the limiting foot is located on the limiting platform away from the second limiting
  • One side of the positioning structure is overlapped and fixed on the limiting platform.
  • the limiting platform is used to prevent the connecting piece from falling off in the first direction.
  • the first limiting structure is formed on the side surface
  • the second limiting structure is located on the second end surface of the connecting piece
  • the first limiting structure includes The concave portion on the side surface of the connecting piece and the convex portion formed on the middle frame, and the convex portion is matched with the concave portion.
  • the protruding part and the recessed part cooperate with each other so that the connecting piece is clamped on the middle frame, and the connecting piece is prevented from falling off along the first direction.
  • the first limiting structure and the second limiting structure are located at the position of the second end surface, and the side surface and the second end surface are connected by a limiting surface, so
  • the limiting surface is an inclined surface extending obliquely with respect to the second end surface, the second end surface is used for welding the skirt, and the first limiting structure includes the limiting surface and cooperating with the limiting surface
  • the limiting portion on the middle frame, the limiting portion is fixedly connected between the skirt and the limiting surface.
  • the connecting piece is bonded to the surface of the middle frame by means of thermal diffusion or hot stack rolling, and the connecting piece is sandwiched between the middle frame and the skirt so as to The first restriction structure and the second restriction structure are combined to realize the restriction in the first direction and the second direction.
  • the connection between the connecting piece and the middle frame can be embedding.
  • the connecting piece can also be located on the surface of the middle frame. One side is fixedly connected to the middle frame and the other side is fixedly connected to the heat equalizing plate, so as to realize in the first direction and the second direction. The two-way limit.
  • the inner side wall of the middle frame facing the through hole includes at least two mounting surfaces
  • the connecting piece includes at least two connecting surfaces, so that at least two of the connecting piece The connecting surfaces are respectively combined with the at least two mounting surfaces.
  • the connection of at least two connecting surfaces of the connecting piece and the at least two mounting surfaces of the middle frame can be realized by means of thermal diffusion, and the connecting surface of the connecting piece and the mounting surface of the middle frame can be combined by thermal diffusion welding of the connecting piece and the middle frame.
  • the size of the composite area of the connecting piece and the middle frame is less than or equal to 0.1mm, which is beneficial to heat conduction.
  • the middle frame includes at least two sub-frame members, the number of the connecting members is at least two, the connecting members are strip-shaped, and at least two of the connecting members are respectively correspondingly connected to the On the at least two sub-frame members, the at least two sub-frame members are spliced into the middle frame.
  • the middle frame may have a split structure, and at least two connecting pieces are fixed to at least two sub-frame pieces respectively, and the split at least two sub-frame pieces are spliced to form a middle frame, which can improve the material utilization rate and reduce the cost.
  • the middle frame is an integrated frame structure
  • the connecting piece includes a first connecting piece and a second connecting piece
  • the first connecting piece and the second connecting piece are strip-shaped.
  • the strip-shaped first connecting piece and the second connecting piece are respectively fixed to the middle frame of the integrated structure to realize the combination of the connecting piece and the middle frame.
  • the through hole is a stepped through hole
  • the inner wall of the through hole includes a stepped surface
  • the connecting piece is embedded in the middle frame
  • the welding part is located in the On the step surface
  • the skirt is overlapped on the step surface and welded to the welding part.
  • the connecting piece and the middle frame can be combined by embedding.
  • the embedding direction can be along the direction perpendicular to the plane where the middle frame is located, or it can be embedded at a certain angle with the plane where the middle frame is located.
  • the embedding direction of multiple connectors can be the same or different, and can be set according to needs.
  • the through hole is a straight through hole
  • the inner wall of the through hole faces the inside of the through hole
  • the welding part is located on the inner wall of the through hole
  • the skirt Compared with the bending of the heat equalizing plate main body, the connecting piece is embedded in the middle frame, and the connecting piece extends from the position of the outer edge of the middle frame to the inner wall of the through hole.
  • the appearance characteristics of the soaking plate are not limited to a flat shape, but may also be curved or irregular, and are specifically set according to the appearance characteristics of the middle frame.
  • the middle frame is provided with a lap surface
  • the lap surface is a surface of the middle frame for carrying devices in an electronic device
  • the soldering portion is located on the lap surface
  • the skirt is overlapped on the overlap surface and welded to the welding part on the overlap surface.
  • the number of the second limiting structure between the connecting member and the heat equalizing plate is multiple, and the connecting member corresponds to the second limiting structure one-to-one. That is, a second limiting structure is provided on each connecting piece. Soldering joints are formed on the second limiting structure, and the number of soldering joints corresponding to each second limiting structure may be one or more.
  • the connectors can be rivets, embedded metal plates, screws, plates, etc. When the connectors are rivets, screws and other connectors that need to be embedded and fixed, the embedding process can be carried out as needed. For example, holes can be opened in the middle frame and the rivets can be riveted in. In the hole, or screw in the screw, the shape, size and number of rivets and screws are not limited.
  • the rivet can be riveted in from any position of the middle frame to achieve the coordination with the position of the heat spreader.
  • the number of the second limiting structure between the connecting piece and the heat equalizing plate is multiple, the connecting piece is elongated, and each connecting piece corresponds to At least two of the second limiting structures.
  • the number of connecting pieces is multiple, the number of corresponding second limiting structures on each connecting piece may be one or multiple.
  • the shapes of the multiple connecting pieces combined with the middle frame can be different, and the combination method can be embedded or located on the surface of the middle frame, which can be specifically set according to product requirements.
  • the heat equalizing plate has a square or polygonal structure, the shape of the through hole matches the equalizing plate, and the skirt at each side of the equalizing plate corresponds to At least one said connecting piece is provided.
  • the material of the skirt of the soaking plate is copper alloy or stainless steel, and the material of the middle frame is titanium alloy or aluminum alloy.
  • the present application provides a method for manufacturing a middle frame assembly, which includes: manufacturing a middle frame, and in the process, a connecting piece different from the material of the middle frame is fixedly connected to the middle frame, and the middle frame is provided with A through hole, part of the connecting piece is exposed to form a welding part, the welding part is located on the inner wall of the through hole or the surface of the middle frame for carrying the devices in the electronic device; a heat spreading plate is provided, and the heat spreading The plate includes a soaking plate body and a skirt surrounding the soaking plate body; the skirt and the connecting piece are of the same type of metal material, or the skirt and the connecting piece are weldable Install the soaking plate to the middle frame, place the soaking plate at the through hole, and weld the skirt and the welding part of the connecting piece.
  • a middle frame with a through hole is made, and the soaking plate is installed in the through hole.
  • a connecting piece is used to connect the middle frame and the soaking plate, and the connecting piece and the skirt of the soaking plate are welded to achieve The high-strength and ultra-thin connection between the middle frame and the soaking plate provides good thermal conductivity between the soaking plate and the middle frame.
  • the method for manufacturing the soaking plate is the same as the method for making the soaking plate in the various specific embodiments of the second aspect, and will not be repeated.
  • the soaking plate can also be formed by other manufacturing methods, which is not limited in this application.
  • the connecting piece and the middle frame are integrated into one body by embedding.
  • the step of making the middle frame includes: providing a blank for making the middle frame; embedding the connector in the blank; machining the blank to form a The middle frame of the hole, and part of the connecting piece is exposed on the surface of the middle frame.
  • the connecting member is a titanium alloy. Titanium alloy has good corrosion resistance and is not easy to be corroded in the process of anodizing.
  • the connecting parts can also be made of other corrosion-resistant materials.
  • the step of making the middle frame includes: providing a blank for making the middle frame; machining the blank to form the middle frame with a through hole; connecting the middle frame The parts are embedded in the middle frame, so that part of the connecting parts are exposed on the surface of the middle frame.
  • the middle frame is anodized, and then the connecting member is embedded after the anodization. Since the connecting piece is embedded after anodizing treatment, there are fewer restrictions on the material of the connecting piece.
  • the material of the connecting piece can be a variety of materials such as titanium alloy and stainless steel.
  • the connecting piece is embedded in the middle frame by riveting or screwing.
  • the connecting piece is fixedly connected to the middle frame by means of thermal diffusion or hot stack rolling.
  • the combination of heat diffusion or hot stack rolling can make the connecting piece and the middle frame have a strong bonding strength.
  • the step of making the middle frame includes: preparing a composite bad material, combining the middle frame bad material of different materials and the connecting piece blank by thermal diffusion; heat-treating the composite blank by performing solid solution And aging treatment, so that the middle frame bad material and the connecting piece blank are combined; the heat-treated composite blank is machined to form the middle frame with through holes, and part of the connecting piece is exposed in the middle The surface of the box.
  • an integrated middle frame blank is used to thermally diffusion bond the connecting piece blank.
  • the process of preparing the composite blank at least two middle frame blanks are used for thermal diffusion bonding of the connector blanks to form at least two composite plates, and the at least two composite plates are processed
  • the sub-frame parts of the required size are obtained through machine cutting and machining, and then at least two of the sub-frame parts are spliced to form the middle frame.
  • the frame body of the middle frame can be spliced by plastic injection molding or welding.
  • an integrated middle frame blank and at least two connecting piece blanks are provided, and the material of the middle frame blank is different from the material of the connecting piece blank; the middle frame blank is processed to form the frame structure Preparation of composite bad material, the middle frame bad material of the material and at least two of the connecting piece blanks are combined by thermal diffusion; the composite blank is heat treated, and the solid solution and aging treatment are performed to make the middle frame bad material Combining with the connecting piece blank; machining the heat-treated composite blank to form the middle frame with a through hole, and part of the connecting piece is exposed on the surface of the middle frame.
  • a protective film is formed on the surface of the middle frame to protect the middle frame by spraying, vacuum non-conductive coating, physical vapor deposition or chemical vapor deposition.
  • the material of the connecting piece can be titanium alloy, stainless steel and other materials.
  • the present application provides an electronic device that includes a heating element and the middle frame assembly according to any one of the above-mentioned third aspects, and the heating element is correspondingly disposed on the middle frame assembly Soaking plate area.
  • the present application provides an electronic device, including a middle frame, a connecting piece, a heat equalizing plate, and an electronic device;
  • the connecting piece is fixedly connected to the middle frame, and part of the connecting piece is exposed outside the middle frame A welding part is formed on the surface;
  • the soaking plate includes a soaking plate body and a skirt surrounding the soaking plate body, and the skirt is welded with the connecting piece so that the soaking plate and the middle frame Combination, together as the carrier in the electronic device;
  • the connecting piece and the skirt are of the same type of metal material, or the connecting piece and the skirt are of different types of metal with weldability Material;
  • the electronic device is provided on the soaking plate.
  • the middle frame is provided with a first through hole
  • the welding part is the inner wall of the through hole or the surface of the middle frame used to carry the electronic device
  • the heat equalizing plate Located at the position of the first through hole, the heat equalizing plate, the middle frame, and the connecting piece together constitute a middle frame assembly
  • the equalizing plate is provided with a second through hole
  • the electronic device further includes a flexible A circuit board, the flexible circuit board passes through the second through hole, and the flexible circuit board is distributed on two opposite sides of the middle frame assembly.
  • the first through hole of the middle frame in this embodiment has the same meaning as the through hole of the middle frame in the middle frame assembly structure in the third aspect.
  • the through holes on the soaking plate in the same meaning, in order to distinguish the description, the "first through hole” and the "second through hole” are used here to distinguish.
  • a first limiting structure is provided at the junction of the connecting piece and the middle frame to realize the limiting in the first direction; the connecting piece and the skirt are formed by welding The second limiting structure realizes the limiting in the second direction, and the first direction and the second direction are opposite directions.
  • the heat equalizing plate includes a first cover plate and a second cover plate
  • the second cover plate includes a first metal layer and a second metal layer
  • the first metal layer includes a main body area.
  • the edge area surrounding the main body area, the second metal layer overlaps the main body area, and the edge area is used to join the edge of the first cover plate to connect
  • a closed cavity is formed between the second cover plates, the second metal layer is located in the closed cavity, the surface of the second metal layer forms a capillary structure, and the material strength of the first metal layer is greater than that of the second metal layer.
  • the material strength of the metal layer, the edge area of the first metal layer and the edge of the first cover plate are combined to form the skirt.
  • the material of the first metal layer is titanium alloy or stainless steel.
  • the material of the middle frame is aluminum alloy or magnesium alloy.
  • FIG. 1 is a schematic diagram of an application environment of a middle frame assembly provided by an embodiment of the present application
  • FIG. 2 is a schematic structural diagram of an assembled middle frame assembly according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of the structure of a soaking plate provided by an embodiment of the present application.
  • FIG. 4 is a structural diagram of a heat spreading plate provided by an embodiment of the present application before assembly
  • FIG. 5 is a structural diagram of an assembled heat plate provided by an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a sealing structure provided by an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a sealing structure provided by another embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a sealing structure provided by another embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a sealing structure provided by another embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a sealing structure provided by another embodiment of the present application.
  • Fig. 11a is a schematic structural diagram of a connection structure provided by an embodiment of the present application.
  • Figure 11b is a schematic diagram of a heat spreading plate provided by an embodiment of the present application, showing the position of the welding connection structure on the outer surface of the heat spreading plate;
  • FIG. 12 is a schematic flowchart of a method for manufacturing a soaking plate provided by an embodiment of the present application.
  • FIG. 13 is a schematic flow chart of a manufacturing method of a second cover plate of a heat equalizing plate provided by an embodiment of the present application;
  • FIG. 14 is a schematic diagram of the structure of the combination of the middle frame and the connector provided in the first embodiment of the present application;
  • FIG. 15 is a schematic structural diagram of a middle frame assembly provided by Embodiment 1 of the present application.
  • FIG. 16 is a schematic diagram of a three-dimensional structure of a middle frame assembly provided by Embodiment 1 of the present application;
  • FIG. 17 is a schematic structural diagram of another middle frame assembly provided by Embodiment 1 of the present application.
  • FIG. 18 is a schematic structural diagram of another middle frame assembly provided by Embodiment 1 of the present application.
  • FIG. 19 is a schematic diagram of the first limiting structure and the second limiting structure provided in the first embodiment of the present application;
  • FIG. 20 is a schematic diagram of another first limiting structure and a second limiting structure provided in Embodiment 1 of the present application;
  • FIG. 21 is a schematic diagram of another first limiting structure and a second limiting structure provided by Embodiment 1 of the present application;
  • 22 is a schematic diagram of the distribution structure of the connecting piece and the second limiting structure provided in the first embodiment of the present application;
  • FIG. 23 is a schematic diagram of the distribution structure of another connecting piece and a second limiting structure provided in Embodiment 1 of the present application; FIG.
  • FIG. 24 is a schematic diagram of the configuration of the connecting piece provided in the first embodiment of the present application.
  • 25 is a schematic diagram of the corresponding structure of the skirt and the connecting piece of the heat spreading plate provided in the first embodiment of the present application;
  • FIG. 26 is a schematic diagram of a structure in which only the connecting piece is fixed according to the first embodiment of the present application.
  • FIG. 27 is a production flow chart of the middle frame component provided by Embodiment 1 of the present application.
  • FIG. 28 is a production flow chart of the middle frame assembly provided in the second embodiment of the present application.
  • FIG. 29 is a schematic structural diagram of a middle frame assembly provided in Embodiment 3 of the present application.
  • FIG. 30 is a schematic structural diagram of the combination of the middle frame and the connecting piece provided in the third embodiment of the present application.
  • FIG. 31 is a schematic structural diagram of thermal diffusion welding provided in the third embodiment of the present application.
  • 32 is a schematic diagram of the structure of fusion welding provided in the third embodiment of the present application.
  • FIG. 33 is a production flow chart of the middle frame assembly provided in the third embodiment of the present application.
  • FIG. 34 is a flowchart of the combination of the middle frame and the connector provided in the third embodiment of the present application.
  • 35 is a schematic diagram of the structure of the middle frame and the connecting piece provided in the fifth embodiment of the present application.
  • FIG. 36 is a production flow chart of the middle frame component provided by the fifth embodiment of the present application.
  • FIG. 37 is a production flow chart of the middle frame component provided in the sixth embodiment of the present application.
  • FIG. 38 is a schematic diagram of the structure of the combination of the middle frame and the connecting piece provided in the sixth embodiment of the present application.
  • FIG. 39 is a schematic diagram of another structure of the combination of the middle frame and the connecting piece provided by the sixth embodiment of the present application.
  • FIG. 40 is a schematic diagram of another structure of the combination of the middle frame and the connecting piece provided by the sixth embodiment of the present application.
  • the application provides a soaking plate and a manufacturing method thereof, a middle frame assembly and a manufacturing method thereof, and electronic equipment.
  • the electronic device can be a mobile phone, a tablet computer, a notebook, a wearable product, a smart home terminal, and other electronic devices. Take a mobile phone as an example, as shown in Figures 1 and 2.
  • Figure 1 is a three-dimensional exploded schematic diagram of an electronic device
  • Figure 2 is a three-dimensional schematic diagram of an assembled electronic device.
  • the electronic device includes a middle frame assembly 1, a display device 7, and a flexible circuit board. 5.
  • Printed circuit board 6 and other structures not shown in the figure for example: battery, main board, antenna, camera module, etc.).
  • the middle frame assembly 1 is the main carrier in the electronic device.
  • the middle frame assembly 1 can be a carrier for carrying the internal components of the electronic device.
  • One side of the middle frame assembly 1 is used to install the display device, and the other side is used to install the battery. Circuit boards and other devices.
  • the middle frame assembly 1 includes a middle frame 2, a connecting piece 3 and a heat equalizing plate 4.
  • the heat equalizing plate 4 is installed at the through hole position of the middle frame 2 through the connecting member 3, and the equalizing plate 4 can be embedded in the through hole, so that the thickness of the middle frame assembly is small enough, so that the electronic device can be thinned.
  • the soaking plate 4 can also be installed on the surface of the middle frame 2, or part of the soaking plate 4 can be sunk into the through hole of the middle frame. "Partially sunk" can be understood as: part of the soaking plate 4 is in the through hole , Part of the soaking plate 4 is located outside the through hole.
  • part of the connecting pieces 3 are disassembled from the middle frame 2 to form an exploded view. Some connecting pieces 3 are connected to the middle frame 2, and some connecting pieces 3 are hidden by the middle frame 2. As shown, it is understandable that the four sides of the heat equalizing plate 4 are provided with connecting pieces 3.
  • the connecting piece 3 and the middle frame 2 are combined into one body, and the heat equalizing plate 4 and the connecting piece 3 are welded and fixed.
  • the heat equalizing plate 4 is provided with through holes 40.
  • the flexible circuit board 5 passes through the through holes 40 of the heat equalizing plate 4 and is connected to the printed circuit board 6.
  • the flexible circuit board 5 can be located on both sides of the middle frame assembly 1.
  • the heat spreading plate 4 and the middle frame 2 can be welded through the connecting piece 3 to achieve a high-strength connection between the middle frame 2 and the heat spreading plate 4.
  • the middle frame assembly 1 When the connection strength is high, the middle frame assembly 1 can be connected The thickness is made thinner, that is, the strength problem of the thinner thickness is compensated by the connection strength, and the structural strength and connection reliability can still be guaranteed even when the electronic device is thinned as a whole.
  • the middle frame assembly 1 provided in the present application the middle frame 2, the connecting member 3 and the heat equalizing plate 4 are all made of metal material, so that the middle frame assembly 1 has good heat conduction performance.
  • the first aspect the structure of the soaking plate:
  • FIG. 3 is a schematic cross-sectional view of the structure of the heat equalizing plate 4 in an embodiment provided by this application.
  • the equalizing plate 4 includes a first cover plate 41 and a second cover plate 42, wherein, The second cover 42 is a composite sheet layer.
  • the second cover 42 includes a first metal layer 421 and a second metal layer.
  • the second metal layer may be a copper layer.
  • the copper layer 422 is used to replace the second metal in the following Floor.
  • the first cover 41 includes a third metal layer 411.
  • the first metal layer 421 includes a body region 4211 and an edge region 4212 surrounding the body region 4211.
  • the copper layer 422 overlaps the body region 4211 (that is, the copper layer 422 is provided on the body region 4211).
  • the edge area 4212 is used to combine with the edge of the third metal layer 411 to form a closed cavity 45 between the first cover 41 and the second cover 42 ,
  • the copper layer 422 is located in the closed cavity 45, and a capillary structure 46 is formed on the surface of the copper layer 422, the strength of the material of the third metal layer 411 is greater than that of the copper layer 422, and the material strength of the first metal layer 421 Greater than the material strength of the copper layer 422.
  • the present application defines that the strength of the material forming the third metal layer 411 of the soaking plate 4 is greater than that of the copper layer 422, and the material strength of the first metal layer 421 is greater than the strength of the copper layer 422, so that the soaking plate 4 as a whole has The characteristic of high strength, it is understandable that as long as the strength of the first metal layer 421 is greater than the strength of the copper layer 422, the soaking plate 4 can have better strength.
  • the strength of the material of the third metal layer 411 is greater than the strength of the material of the copper layer 422, which will make the strength of the soaking plate 4 better.
  • the capillary structure 46 of the soaking plate 4 provided in the present application is still formed by sintering on the copper layer, which can avoid the problems of difficulty in forming the capillary structure on other metal materials and low yield, and realizes the enhancement of the structural strength and The role of heat dissipation performance.
  • the working principle of the heat equalizing plate 4 provided in the present application is: a heating element is arranged in a partial area of the equalizing plate 4, and a heat-conducting working medium (such as water) is arranged in the closed cavity 45 in the equalizing plate 4.
  • a heat-conducting working medium such as water
  • the heating element When the heating element is working, it emits heat, and the area where the heat equalizing plate 4 contacts the heating element absorbs heat, so that the heat conducting working medium in the equalizing plate 4 is heated and vaporized, that is, the water changes from liquid to gas, and the gas flows to In other areas of the soaking plate, in the area where the soaking plate is far away from the heating element, due to the low temperature, the gas liquefies into liquid, and the liquid is adsorbed on the capillary structure and is transported to the area where the heating element is located through the capillary structure, thus forming The gas-liquid two-phase circulation is realized to achieve the effect of uniform temperature.
  • the heat spreading plate 4 is also provided with a support column 47, which is used to support the closed cavity 45 in the heat spreading plate between the first cover plate and the second cover plate.
  • the support column 47 can also enhance the heat spreading.
  • the number of support pillars 47 can be multiple. According to the size and shape of the soaking plate 4, the support pillars 47 are specifically arranged. For example, the support pillars 47 can be arranged in an array of 3 rows and 5 columns. The distribution can also be irregular. There can be more support columns 47 distributed in the central area of the soaking plate 4, and fewer support columns 47 are distributed in the area near the skirt. It can also be understood as the support column in the central area. The density of 47 is higher, and the density of support pillars 47 in the edge area is lower.
  • the specific form of the support column 47 is not limited to a cylindrical structure, and the support column 47 may also have a strip structure.
  • the first cover plate 41 and the second cover plate 42 are stacked relative to each other, and the capillary structure 46 is stacked between the first cover plate 41 and the second cover plate 42.
  • the second cover plate A capillary structure 46 is formed on the copper layer 422 of 42, and then the edge of the first cover 41 and the edge 4212 of the second cover 42 are combined to form the uniform heat plate 4.
  • the capillary structure 46 shown in FIG. 4 is integrated with the copper layer 422 in the actual product.
  • the capillary structure 46 is separated from the copper layer 422 in FIG. 4
  • the form shown in Figure 4 does not represent the specific form of the capillary structure in a specific product.
  • the outer surface of the third metal layer 411 may also be provided with other protective layers.
  • the third metal layer 411 in the first cover 41 may be a titanium alloy sheet layer, and the third metal layer 411 may be an ⁇ -type titanium alloy, such as TA1, TA2, or TA4, or an ⁇ - ⁇ titanium alloy, Titanium alloys such as TC4 can also be ⁇ -type titanium alloys, such as titanium alloys such as TB2.
  • the first metal layer 421 has a relatively strong strength, and as a main supporting body, the thickness of the first metal layer 421 is greater than the thickness of the copper layer 422. Specifically, the thickness of the copper layer 422 is less than 0.15 mm.
  • the role of the copper layer 422 is to make the capillary structure 46. As long as the copper powder or copper mesh can be placed on the copper layer 422 and sintered to form the capillary structure 46, the copper layer The thickness of the 422 can be thinner, which is beneficial to reduce the thickness of the soaking plate 4, and when the thickness of the copper layer 422 is thin, a larger space can be reserved in the cavity 45 to inject more working fluids (such as working fluids).
  • the copper layer 422 is a copper metal with a thickness of 0.05mm. According to actual product requirements, copper of other thicknesses and materials can also be selected. ⁇ 422.
  • the third metal layer 411 can be a titanium alloy with a thickness of 0.1 mm, and the first metal layer 421 can be a titanium alloy with a thickness of 0.2 mm. According to actual product requirements, the third metal layer 411 and the first metal of other thicknesses and materials can also be selected.
  • the layer 421 is used to make the soaking plate 4 have better strength and thermal conductivity.
  • the edge area 4212 of the first metal layer 412 and the edge of the third metal layer 411 may be hermetically connected by welding.
  • the welding and sealing can ensure the bonding strength of the first metal layer 412 and the third metal layer 411, and prevent the liquid working fluid in the cavity from leaking.
  • the material of the third metal layer 411 and the first metal layer 421 can be the same type of metal material, and the same type of metal material is It means that the material of the third metal layer 411 is the same as the element with the highest content in the material of the first metal layer 421.
  • the material of the third metal layer 411 and the material of the first metal layer 421 can be both a titanium alloy or a third metal.
  • the material of the layer 411 and the material of the first metal layer 421 can also be stainless steel at the same time, and the material of the third metal layer 411 and the material of the first metal layer 421 can also be other high-strength metal materials.
  • the same type of metal material is welded. When there is no brittle phase, it can have higher welding strength.
  • the material of the third metal layer 411 and the first metal layer 421 may also be different types of metal materials with solderability.
  • Solderability means that the highest content of elements is different, the burning temperature of the low melting point metal is lower than the melting point of the high melting point metal, and there is no brittle phase formation in the bonding zone of the two metals, and the hardness of the weld is greater than 80% of the lowest hardness of the two metals As mentioned above, when welding metal materials with weldability, they can also have higher bonding strength.
  • the material of the third metal layer 411 may be a titanium alloy
  • the material of the first metal layer 421 may be a material that has weldability with the third metal layer 411; or the material of the first metal layer 421 may be a titanium alloy.
  • the material of the three metal layer 411 is a material having solderability with the first metal layer 421.
  • Fig. 5 is a schematic diagram of a heat equalizing plate 4 provided by an embodiment of the application.
  • the equalizing plate 4 is provided with a through hole 40, and the through hole 40 penetrates the top surface and the bottom surface of the equalizing plate 4.
  • the surface shown in FIG. 5 is the top surface of the soaking plate 4, and the top and bottom surfaces of the soaking plate 4 can be regarded as the outer surfaces of the first cover plate 41 and the second cover plate 42, that is, the through hole 40 penetrates the first cover plate 41 and the second cover plate 42.
  • the through hole 40 is used to pass through the transmission line.
  • the transmission line may be a flexible circuit board, and the flexible circuit board passes through the through hole 40 to be connected to the printed circuit board.
  • the through holes 40 are provided on the heat equalizing plate 4 by providing openings on the first cover plate 41 and the second cover plate 42, and the openings are located at the position where the equalizing plate 4 closes the cavity.
  • the sealing structure 43 is connected to the first cover plate 41 and the second cover plate 42 in a sealed manner, so as to ensure the sealing of the vacuum sealing cavity of the heat equalizing plate 4.
  • the sealing structure 43 can have different structures. The following will describe six specific embodiments, as follows:
  • the first cover plate includes a first plate body 412
  • the second cover plate includes a second plate body 423
  • the sealing structure 43 may include two parts, a first boss 431 and a first Two bosses 432
  • the first boss 431 is an integrally formed structure with the first plate body 412
  • the first boss 431 is formed on the periphery of the first opening 413 of the first plate body 412 of the first cover (that is, the first The edge position of an opening 413)
  • the second boss 432 is an integrally formed structure with the second plate 423
  • the second boss 432 is formed in the second opening 424 of the second plate 423 of the second cover.
  • first boss 431 and the second boss 432 are butted, so that the first opening 413 and the second opening 424 are connected to form a through hole 40.
  • the first boss 431 and the second boss 432 can form a sealing structure 43 by welding, for sealing the cavity 45.
  • the sealing structure 43 may be an integral structure with the first plate body 412 of the first cover 41.
  • the sealing structure includes a first boss 431 and a first boss 431.
  • the first boss 431 is formed at the edge position of the first opening 413 of the first plate body 412 of the first cover plate, and the second plate body 423 is provided with a second through hole 4231 (This second through hole 4231 can be regarded as the second opening opened by the second plate body 423.
  • this through hole is defined as the first Two through holes
  • the first boss 431 extends to the second through hole 4231 of the second plate body 423, and is sealed and welded to the second plate body 423 (in FIG. 7 to show that the first boss 431 is connected to the first plate
  • the body 412 is integrally formed.
  • the first boss 431 and the second plate 423 are not in contact and sealed.
  • the first boss 431 is in contact and sealed with the second plate 423), so that the first opening 413
  • the through hole 40 is formed in communication with the second through hole 4231.
  • the sealing structure 43 can be an integral structure with the second plate body 423 of the second cover plate 42.
  • the sealing structure includes a second boss 432, and the second boss 432 is an integrated structure.
  • the second plate 423 is an integrally formed structure
  • the second boss 432 forms a second opening 424 that penetrates the second plate 423 of the second cover plate
  • the first plate 412 is provided with a first through hole 4121 (the first through The hole 4121 can be regarded as the first opening opened by the first plate body 412.
  • this through hole is defined as the first through hole 4121)
  • the second boss 432 extends to the first through hole 4121 of the first plate 412, and is sealed and welded to the first plate 412 (in FIG. 8 to show that the second boss 432 is integrally formed with the second plate 423
  • the second boss 432 does not contact and seal with the first plate 412.
  • the second boss 432 and the first plate 412 are in contact and sealed), so that the second opening 424 and the first through hole 4121 communicates and forms a through hole 40.
  • the sealing structure 43 and the first cover 41 and the second cover 42 are both separated structures.
  • the first plate 412 is provided with a first through hole 4121
  • the second plate 423 is provided with a second through hole 4231 (the first through hole 4121 and the second through hole 4231 in this embodiment have the same meaning as the first and second holes in the first embodiment, and can be understood as the same The opening structure)
  • the sealing structure 43 forms a hollow channel.
  • the sealing structure 43 includes a first connection end 433 and a second connection end 434.
  • the first connection end 433 and the first plate body 412 Seal welding; at the edge position of the second through hole 4231, the second connecting end 434 is sealed and welded to the second plate body 423, the first through hole 4121 and the second through hole 4231 are communicated through the hollow passage of the sealing structure 43 to A through hole 40 is formed.
  • the first through hole 4121 is formed on the first plate body 412, and after the second through hole 4231 is formed on the second plate body 423, the two ends of the sealing structure 43 are connected to the first through hole 4121 and the second through hole 4121.
  • the plates at the through hole 4231 are butted, and the cavity is sealed by welding.
  • the sealing structure 43 can also be sheet-shaped (this solution is easier to understand, not shown).
  • the sealing structure 43 and the first cover 41 and the second cover 42 in this embodiment are also separated structures. Please refer to the figure of the fourth embodiment, but the sealing structure 43 in this embodiment may be flexible, and the sealing structure 43 defined in the fourth embodiment is not limited to rigid or flexible), the sheet-like structure provided by this embodiment
  • the two ends of the sealing structure 43 respectively surround the first through hole 4121 of the first plate body 412 and the second through hole 4231 of the second plate body 423 and jointly surround the closed cavity.
  • the sheet-shaped sealing structure may have flexible characteristics. The shape can be flexibly set up and save space.
  • the sealing structure can also be a paste material (not shown), and the paste metal is filled around the first through hole 4121 of the first plate body 412 and the second through hole 4231 of the second plate body 423 The gap between the first plate body 412 and the second plate body 423 is filled, and the paste-like substance is solidified by means of heating and pressure or thermal diffusion to form a sealed structure.
  • the paste-like sealing structure can be cured by filling the gap with a paste-like substance with a certain degree of deformation.
  • the inner wall of the through hole surrounded and formed by the sealing structure 43 is smooth. Taking the plane where the first plate 412 is located as the reference plane, the extending direction of the through hole 40 is perpendicular to the reference plane.
  • the inner wall of the through hole formed by the sealing structure 43 may also be stepped.
  • the shape of the inner wall of the through hole is not limited, as long as it can pass through the transmission line without affecting the performance of the transmission line.
  • the angle between the extension direction X of the through hole 40 and the reference plane is less than 90°.
  • the extension direction of the through hole 40 can be set as required.
  • the bending angle of the flexible circuit board is also less than 90°, which is beneficial to maintain the good performance of the flexible circuit board and improve the service life of the flexible circuit board.
  • a connecting structure 44 is provided in the heat plate 4, and the connecting structure 44 is located in the encapsulated cavity 45. Both ends of the connecting structure 44 are fixedly connected to the first cover 41 and the second cover 42 to avoid After the soaking plate is heated, the first cover 41 and the second cover 42 are prone to deformation such as bagging, warping, etc., which may cause interaction with other devices (other devices here can be referred to as electronic devices in electronic equipment, which can be heat-generating under working conditions). Electronic devices, which can also be called heating elements) interfere with the problem.
  • the first cover 41 and the second cover 42 are only welded and fixed at the edge position, and there is no fixing structure between the two in the middle receiving area.
  • the connecting structure 44 may be an integral structure with the first cover plate 41. After the first cover plate 41 and the second cover plate are butted and fixed, the outer surface of the second cover plate 42 is welded to the connecting structure 44 and the second cover plate. 42.
  • the connecting structure and the second cover plate 42 may also be designed as an integral structure, and the second limiting structure 44 and the first cover plate are welded and fixed on the outer surface of the first cover plate 41.
  • Fig. 11b shows the welding position formed on the outer surface of the soaking plate 4 for welding and fixing 44.
  • the connecting structure 44 and the second cover plate 42 are integrally formed.
  • the second cover plate forms the connecting structure 44, it is necessary to avoid the area where the capillary structure needs to be provided.
  • the capillary structure is made by the copper mesh, and an opening is made on the copper mesh for making the capillary structure, so that the connecting structure passes through the opening, and the copper mesh is covered on the surface of the copper layer 422 of the second cover plate 42 for sintering. After the first cover plate and the second cover plate are combined, the outer surface of the first cover plate is welded to fix the connection structure and the first cover plate.
  • the connecting structure 44 is located inside the cavity 45.
  • the connecting structure 44 can be arranged in an area close to the center of the cavity. As shown in FIG. There can be more than three, and the specific number and position of the selection depends on the specific size and shape of the temperature equalizing plate. In the case of a large area of the equalizing plate 4, several more connecting structures can be provided.
  • liquid working medium in the closed cavity 45 of the heat equalizing plate 4, and the liquid working medium can be water, alcohol, acetone, etc., and the liquid working medium is used to realize the heat dissipation process in which the equalizing plate continuously circulates.
  • a method for manufacturing a soaking plate in an embodiment specifically includes the following steps:
  • the first cover 41 includes a third metal layer 411.
  • the sheet material 410 of the third metal layer may be formed by stamping and forming the first cover plate 41.
  • the sheet material 410 of the third metal layer may be formed into the first cover plate 41 during the process of forming a support column 47.
  • the support column 47 is used to strengthen the uniformity. Strength of hot plate 4.
  • the third metal layer 411 is made of high-strength metal, the strength of the material of the third metal layer 411 is greater than that of copper metal, and the yield strength of the material of the third metal layer 411 is greater than or equal to 330Mpa, for example, the material of the third metal layer It can be materials with high strength properties such as titanium alloy and stainless steel. Specifically, in a preferred embodiment, a TA4-M titanium alloy sheet material with a thickness of 0.1 mm can be used to form the first cover plate 41 by stamping, and other thicknesses can also be selected according to actual product requirements. The material selection of the first cover plate 41 is not limited to TA4 titanium alloy, and other titanium alloys can also be selected, such as TA1, TA2, etc.
  • TC4 titanium alloy in the ⁇ - ⁇ -type titanium alloy can be TB2 titanium alloy among ⁇ -type titanium alloys, etc.; the same can also be selected as stainless steel materials, such as 301 stainless steel, 304 stainless steel, 316 stainless steel, etc., and high-strength materials of other materials can also be selected.
  • the second cover 42 includes a first metal layer 421 and a copper layer 422.
  • the material strength of the first metal layer 421 is greater than the material strength of the copper layer 422.
  • the first metal layer 421 includes a body region 4211 and an edge region 4212 surrounding the body region 4211 ,
  • the copper layer 422 overlaps the body region 4211 (that is, the copper layer 422 is provided on the surface of the body region 4211, and the edge region 4212 is not covered by the copper layer 422).
  • the second cover plate 42 can have different manufacturing methods. Specifically, the first metal layer 421 and the copper layer 422 can be combined by electroplating, rolling, thermal diffusion, etc., and the size of the first metal layer 421 and the copper layer 422 The same, that is, the first metal layer 421 and the copper layer 422 completely overlap, the edge area of the copper layer 422 is etched away, and the copper layer 422 in the middle area is retained, so that the copper layer 422 only overlaps the body region 4211.
  • the copper layer 422 completely covers the main body region 4211 of the first metal layer 421 and the capillary structure 46 is formed on the surface of the copper layer 422. Specifically, copper powder or copper mesh is placed on the copper layer 422, and the capillary structure 46 is formed by sintering.
  • the thickness, area, shape area, and porosity of the capillary structure 46 can be adjusted according to the requirements of heat dissipation performance.
  • the edge area 4212 of the second cover plate 42 and the edge of the third metal layer 411 are fixedly connected to form a closed cavity 45 between the first cover plate 41 and the second cover plate 42.
  • the edge area 4212 of the second cover plate 42 and the edge of the first cover plate 41 are welded by laser welding, diffusion welding, friction stir welding, etc.
  • the mass is injected into the cavity 45 of the soaking plate 4, and the liquid injection port is welded and closed to form a closed cavity of the soaking plate 4.
  • the liquid working fluid can be water, alcohol, acetone, etc.
  • the second cover plate 42 can also have other manufacturing methods.
  • the copper layer 422 can be fixed by electroplating, rolling, thermal diffusion, etc.
  • the main body area 4211 of the first metal layer 421 forms the second cover 42 (that is, the edge area of the copper layer 422 is not removed by etching, and the small-sized copper layer 422 is directly covered and fixed to the first metal layer 422 by means of electroplating, rolling, thermal diffusion, etc.
  • the main body area 4211 of a metal layer 421 forms a composite sheet layer of the copper layer 422 and the first metal layer 421), which is beneficial to improve material utilization, reduce costs, and optimize the manufacturing process of the second cover plate 42.
  • a first opening may be provided on the first plate body 412 of the first cover plate, and a first opening may be provided on the second plate body 423 of the second cover plate 42.
  • the second opening is provided with a sealing structure to seal the first plate 412 and the second plate 423 at the positions of the first opening and the second opening.
  • a sealing structure is formed between the first opening and the second opening, and the sealing structure is connected to the first plate body and The second plates are connected and jointly surround the closed cavity.
  • the first opening and the second opening are connected to form a through hole that penetrates the heat equalizing plate 4, and the through hole is used for supplying
  • the flexible circuit board in the electronic device passes through, and the specific structure of the through hole and the sealing structure is detailed in the description of the first aspect (the soaking plate structure), which will not be repeated.
  • the structure of the sealing structure can include but not limited to the following schemes, which are as follows:
  • the part of the sealing structure is an integral structure with the first plate body, and the part of the sealing structure is an integral structure with the second plate body.
  • the two parts are sealed during the process of combining the first cover plate and the second cover plate.
  • the structure is butt-sealed and fixed.
  • the sealing structure is an integral structure with the first plate body. In the process of combining the first cover plate and the second cover plate, the sealing structure is far away from the end of the first plate body and the second plate body. The edges of the two openings are combined and sealed and fixed.
  • the sealing structure and the second plate body are an integral structure.
  • the end of the sealing structure away from the second plate body and the first plate body The edges of an opening are combined and sealed and fixed.
  • the sealing structure is a single structure independent of the first plate body and the second plate body, and the two ends of the sealing structure are sealed and connected to the first hole edge position and the The edge position of the second opening of the second board.
  • the sealing structure under this scheme can be a sleeve-like structure, a flexible sheet-like structure, or a paste-like structure.
  • the edge area 4212 of the first metal layer 412 and the edge of the third metal layer 411 are connected by welding and sealing.
  • the welding and sealing can enhance the bonding strength of the first metal layer 412 and the third metal layer 411 and prevent the liquid working fluid in the cavity from leaking.
  • the material of the third metal layer 411 and the first metal layer 421 are the same type of metal material, and the same type of metal material refers to
  • the material of the third metal layer 411 is the same as the element with the highest content in the material of the first metal layer 421.
  • the material of the third metal layer 411 and the material of the first metal layer 421 can be both titanium alloy or the third metal layer.
  • the material of 411 and the material of the first metal layer 421 may also be stainless steel at the same time, and the material of the third metal layer 411 and the material of the first metal layer 421 may also be other high-strength metal materials. When the same type of metal material is welded, no brittle phase is formed, and it can have a higher welding strength.
  • the material of the third metal layer 411 and the first metal layer 421 may also be different types of metal materials with solderability.
  • Solderability means that the highest content of elements is different, the burning temperature of the low melting point metal is lower than the melting point of the high melting point metal, and there is no brittle phase formation in the bonding zone of the two metals, and the hardness of the weld is greater than 80% of the lowest hardness of the two metals
  • the material of the third metal layer 411 is a titanium alloy
  • the material of the first metal layer 421 is a material that has weldability with the third metal layer 411; or the material of the first metal layer 421 is a titanium alloy, and the material of the third metal layer 421 is a titanium alloy.
  • the material of the metal layer 411 is a material having solderability with the first metal layer 421.
  • Other different types of metal materials with solderability can also be used as materials for the third metal layer and the first metal layer.
  • the process of combining the first cover plate 41 and the second cover plate 42 also includes providing a connecting structure in the packaging cavity, which can prevent the first cover plate 41 and the second cover plate 42 from being easily packaged after the heat spreading plate is heated. , Warpage and other deformations cause interference with other devices.
  • a connecting structure in the packaging cavity, which can prevent the first cover plate 41 and the second cover plate 42 from being easily packaged after the heat spreading plate is heated. , Warpage and other deformations cause interference with other devices.
  • the connection structure please refer to the description of the first aspect (the soaking plate structure), and will not be repeated.
  • the strength of the soaking plate is improved, and the capillary structure is formed by sintering on the copper layer, which can avoid the difficulty of forming the capillary structure on other metal plates and the low yield
  • the problem is to achieve the effect of enhancing the structural strength and heat dissipation performance.
  • Figure 14 shows a structural cross-sectional view of the middle frame with connecting pieces
  • Figure 15 shows a structural cross-sectional view after installing the soaking plate to the middle frame
  • Figure 16 shows the middle frame formed by installing the soaking plate to the middle frame.
  • the present application provides a middle frame assembly 1 including a middle frame 2, a connecting piece 3 and a heat equalizing plate 4.
  • the middle frame 2 is provided with a through hole 21, the connecting piece 3 is integrated with the middle frame 2, and a part of the connecting piece 3 is exposed on the surface of the middle frame 2 to form a welding part, and the welding part is located on the inner wall of the through hole or
  • the surface of the middle frame used to carry the components in the electronic equipment is used for welding the soaking plate 4. It can be understood that the soldering portion is located on the surface of the middle frame 2.
  • the surface of the middle frame 2 referred to here refers to a part of the inner wall forming the through hole 21 or the surface of the middle frame 2 for carrying devices in the electronic device.
  • the device in the electronic device can be an electronic device, specifically, it can be an electronic device that generates heat inside the electronic device when the electronic device is working, or it can also be called a heating element, such as a battery, a motherboard (a heating chip will be set on the motherboard And other devices).
  • a heating element such as a battery, a motherboard (a heating chip will be set on the motherboard And other devices).
  • the heat equalizing plate 4 is provided with a through hole 40 for the flexible circuit board to pass through, and the middle frame 2 is provided with a through hole 21 for installing the equalizing plate 4.
  • the through hole 21 on the middle frame 2 is called a first through hole, and the through hole 40 on the heat equalizing plate 4 is called a second through hole.
  • the middle frame 2 in the electronic device provided by the present application may not be provided with a through hole, and the soaking plate 4 may be directly installed on the middle frame 2.
  • a portion of the thickness of the position where the heating plate needs to be installed on the middle frame 2 is reserved as the bearing area.
  • the thickness of the bearing area can be very small, and specifically can be less than the thickness of the heating plate 4.
  • the bearing area can be used as the bearing of the heating plate. The supporting strength of the position of the soaking plate is ensured, and the bearing area is used as the positioning surface of the soaking plate, which makes the process of installing the soaking plate easier.
  • the soaking plate 4 includes a soaking plate main body 48 and a skirt 49 surrounding the soaking plate main body 48 (specifically, the first metal layer and the third metal layer skirt 49 are of the soaking plate 4
  • the edge area of the first metal layer is combined with the edge of the third metal layer
  • the heat equalizing plate 4 is accommodated at the position of the through hole 21, and the skirt 49 is welded to the connecting piece 3, so that the equalizing plate 4 and the middle frame 2 combination, together as the carrier in the electronic device.
  • the connecting piece 3 and the skirt 49 are the same type of metal material.
  • the same type of metal material means that the material of the connecting piece 3 is the same as the material of the skirt 49 with the highest content.
  • the connecting piece 3 and the skirt 49 are different types of metal materials with weldability.
  • the weldability refers to the different elements with the highest content, and the low melting point metal burn The temperature is lower than the melting point of the high melting point metal, and there is no brittle phase formation in the bonding zone of the two metals, and the hardness of the welding part is greater than 80% of the lowest hardness of the two metals.
  • the specific structure of the heat equalizing plate 4 provided in the foregoing first aspect will not be repeated here).
  • the material of the middle frame 2 is 6013-T6 (peak aging state) aluminum alloy
  • the material of the connecting piece 3 is TA4-M (annealed) titanium alloy
  • the material of the skirt 49 of the soaking plate 4 is TA4. -M titanium alloy.
  • the materials of the middle frame 2, the connecting piece 3 and the soaking plate 4 can be selected according to product requirements.
  • the material combination of the middle frame 2, the connecting piece 3 and the soaking plate 4 is as shown in the following table:
  • the through hole 21 of the middle frame 2 can have different structures.
  • the connecting piece 3 is embedded in the middle frame 2, and the connecting piece 3 is partially exposed on the step surface 211 (the step surface 211 is a part of the inner wall forming the through hole 21) so that the connecting piece 3 is in contact with the heat equalizing plate 4.
  • the skirt 49 of the heat equalizing plate 4 overlaps on the step surface 211 and welded to the position of the local connecting piece 3 on the step surface 211. In other words, the skirt 49 of the equalizing heat plate 4 is welded to the connecting piece.
  • the corresponding local position is used to fix the connecting piece 3 and the soaking plate 4 (that is, through the connecting piece 3 and welding the middle frame 2 and the soaking plate 4).
  • the connecting piece 3 and the middle frame 2 can be combined by embedding.
  • the embedding direction can be along the direction perpendicular to the plane where the middle frame 2 is located, or it can be embedded at a certain angle with the direction of the plane where the middle frame 2 is located.
  • the embedding directions of the multiple connectors 3 can be the same or different, and can be set as required.
  • the through hole 21 may also be a straight through hole.
  • the inner wall of the through hole 21 faces the inside of the through hole.
  • the connecting piece 3 is embedded in the middle frame 2, and the connecting piece 3 extends from the position of the outer edge of the middle frame 2 to the inner wall of the middle frame 2 facing the through hole 21.
  • the appearance characteristics of the soaking plate 4 are not limited to a flat shape, but may also be curved or irregular, and are specifically set according to the appearance characteristics of the middle frame.
  • the skirt 49 of the heat equalizing plate 4 may be located in the through hole 21.
  • the skirt 49 may also be located on the surface of the middle frame 2 for carrying devices in the electronic equipment.
  • the middle frame 2 is provided with a lap surface 24, and the lap surface 24 is the middle frame. 2
  • the surface used to carry the components in the electronic equipment, the skirt 49 is overlapped on the lap surface 24 and welded to the position of a part of the connecting member 3 on the lap surface 24.
  • a first limiting structure 31 is provided at the junction of the connecting piece 3 and the middle frame 2 to realize the limiting in the first direction X1.
  • the connecting piece 3 and the skirt 49 are welded to form a second limiting structure 32 .
  • the first direction X1 and the second direction X2 are opposite directions.
  • the middle frame 2 and the connecting piece 3 are combined to achieve the improvement of the bonding strength of the middle frame, the connecting piece and the soaking plate in the middle frame assembly 1.
  • the size of the middle frame 2 is limited.
  • a first limiting structure 31 is formed at the junction of the connecting member 3 and the middle frame, and a second limiting structure 32 is formed between the connecting member 3 and the skirt 49 of the heat equalizing plate 4.
  • the first limiting structure 31 and the second limiting structure 32 realize the bidirectional fixation of the connecting member 3 in the first direction X1 and the second direction X2 to ensure the structural stability of the connecting member 3 and prevent the connecting member 3 from falling off.
  • the connecting member 3 can be embedded inside the middle frame 2.
  • the connecting member 3 includes a first end surface 33 and a second end surface 34 opposite to each other and is connected between the first end surface 33 and the second end surface 34
  • the side surface 38 is located inside the middle frame 2, and the first end surface 33 and the second end surface 34 are exposed on the surface of the middle frame.
  • the first end surface 33 may not be exposed on the surface of the middle frame.
  • the middle frame can be covered by plastic injection molding, so that the first end surface 33 may not be exposed.
  • the first limiting structure 31 and the second limiting structure 32 formed after the connecting member 3 is embedded in the middle frame 2 have different implementation methods, for example:
  • the first limiting structure 31 and the second limiting structure 32 are respectively located at the first end surface 33 and the second end surface 34 of the connecting piece 3.
  • the first limiting structure 31 is located at the connecting piece 3.
  • the second limiting structure 32 is located at the second end surface 34 of the connecting member 3.
  • the first limiting structure 31 includes a limiting foot 311 formed at the first end surface 33 of the connecting member 3 and a
  • the limit pin 311 is located on the side of the limit table 312 away from the second limit structure 32, and is overlapped and fixed on the limit table 312.
  • the second limit structure 32 prevents the connecting piece 3 falls off along the second direction X2 to achieve the limit in the second direction X2, and the limit table 312 prevents the connector 3 from falling off along the first direction X1 to achieve the limit in the first direction X1.
  • the first limiting structure 31 is formed on the side surface 38, and the second limiting structure 32 is located at the second end surface 34 of the connecting member 3.
  • the first limiting structure 31 includes forming on the connecting member 3.
  • the recessed portion 35 on the side surface 38 and the protruding portion 36 formed on the middle frame 2.
  • the protruding portion 36 cooperates with the recessed portion 35 so that the connector 3 is clamped inside the middle frame 2, preventing the connector 3 from being along
  • the first direction X1 falls off to achieve the limit in the first direction X1
  • the second limit structure 32 prevents the connector 3 from falling off along the second direction X2 to achieve the limit in the second direction X2.
  • the first limiting structure 31 and the second limiting structure 32 are both located at the second end surface 34 of the connecting member 3. Specifically, the side surface 38 and the second end surface 34 are connected by the limiting surface 37
  • the limiting surface 37 is an inclined surface extending obliquely with respect to the second end surface 34.
  • the second end surface 34 is used for welding the skirt 49.
  • the first limiting structure 31 includes the limiting surface 37 and the upper frame 2 which is matched with the limiting surface 37.
  • the limiting portion 22, the limiting portion 22 is fixedly connected between the skirt 49 and the limiting surface 37.
  • the connecting piece 3 is correspondingly provided with a second limiting structure 32, the number of the second limiting structure 32 between the connecting piece 3 and the heat equalizing plate 4 is multiple, and the connecting piece 3 corresponds to the second limiting structure 32 one-to-one (Refer to Figure 22, the size of the circle in Figure 22 does not represent the actual size of the connecting piece 3 and the second limiting structure, but only to reflect the corresponding relationship between the connecting piece 3 and the second limiting structure 32), or the connecting piece 3 is In a long strip shape, each connecting member 3 corresponds to at least two second limiting structures 32 (refer to FIG. 23).
  • the shape of the connecting member 3 is not limited, and the connecting member 3 may be distributed on the middle frame 2 in a dot shape, or may be distributed on the middle frame 2 in a strip shape (see FIGS. 22 and 23),
  • the shape of the cross-section of the connecting member 3 is not limited, and the cross-section of the connecting member 3 can be round, long, square, or irregular shaped, etc. (refer to FIG. 24), which can be specifically designed as required.
  • Fig. 25 shows a three-dimensional exploded schematic view of the soaking plate 4 and the middle frame 21.
  • the soaking plate 4 can have a square or polygonal structure, and the shape of the through hole 21 matches the shape of the soaking plate 4, both At least one connecting member 3 is correspondingly provided on the skirt at each side of the hot plate 4.
  • the connecting piece 3 and the welding frame 32 are used to realize the fixed connection of the middle frame 2 and the soaking plate 4, which can enhance the bonding strength between the middle frame 2 and the soaking plate 4 and realize the middle frame 2 and the soaking plate 4 Ultra-thin connection of board 4.
  • the aluminum alloy is selected as a precipitation strengthening type. After welding, the strength of the molten pool area and the heat affected zone will be greatly reduced, and the middle frame 2 And the soaking plate 4 is made of two different materials. When the two different materials are welded, brittle phases are easily generated, which is also not conducive to the improvement of the bonding strength.
  • the application uses the connecting piece 3 to transition. Realize the welding between the same kind of metal without loss of strength; if the soaking plate 4 is directly fixed to the middle frame 2 through the connecting piece 3 (refer to Figure 26), it depends on the fitting between the connecting piece 3 and the middle frame 2 For fixing, the thickness W1 at the junction of the middle frame 2 needs to be greater than 0.5mm to ensure the bonding force. If the thickness is too thin, the connector 3 is likely to fall off the middle frame 2 and cause the connection to fail. Therefore, compared to directly passing the connector and the middle frame For the interfitting, this application does not only rely on the interfitting and fixing between the connecting member 3 and the middle frame 2, and there is no limitation on the thickness of the bonding area of the middle frame 2.
  • the manufacturing method of the middle frame assembly 1 provided in this embodiment is shown in FIG. 27.
  • the specific manufacturing method of the middle frame assembly 1 is as follows:
  • a middle frame blank 23 for making the middle frame 2 is provided, and the connecting piece 3 is embedded in the middle frame blank 23.
  • the process of inserting the connecting piece 3 into the middle frame blank 23 can be selected according to requirements.
  • the connecting piece 3 can be riveted in after opening a hole at the design position of the middle frame blank 23, or embedded in the middle frame blank 23 by screwing in.
  • the middle frame blank 23 is machined to form the middle frame 2, and anodized.
  • the middle frame blank 23 embedded in the connecting piece 3 is machined to form the middle frame 2 with a through hole 21 and part of the connecting piece 3 is exposed on the surface of the middle frame 2.
  • the steps of machining the middle frame blank 23 include computer digital control, nanotechnology combination of metal and plastic, computer digital control, mechanical polishing and polishing of the exterior surface, and so on.
  • the middle frame 2 is anodized.
  • the anodizing treatment can form a hard oxide film on the surface of the middle frame to enhance the strength of the middle frame and protect the middle frame.
  • the connecting piece 3 can be made of titanium alloy. Titanium alloy has excellent corrosion resistance. During the anodizing process of the middle frame 2, the connecting piece 3 made of titanium alloy will not corrode. .
  • the middle frame 2 with the required structure and appearance is obtained through machining and anodizing treatment.
  • Figure 27 shows a cross-sectional view.
  • the number of connecting pieces 3 combined in the middle frame shown in the figure is two. Specifically, during the manufacturing process, it is necessary to set the number of connecting pieces and the number of connecting pieces according to the size and shape of the soaking plate. Specific location. In FIG. 27, there is a connecting piece 3 on each side of the through hole 21.
  • the structure of the two connecting pieces 3 can be the same, and the connection relationship between the connecting piece and the heat spreading plate is also the same. Therefore, only The connection structure between the connecting piece on the right and the soaking plate is marked.
  • T103 Provide heat equalizing plate 4, install equalizing plate 4 to middle frame 2.
  • the soaking plate 4 includes a soaking plate body 48 and a skirt 49 surrounding the soaking plate body 48.
  • the skirt 49 and the connecting piece 3 are the same type of metal material.
  • the same type of metal material means that the material of the skirt 49 is the same as the material of the connecting piece 3 with the highest content.
  • the skirt 49 and the connecting piece 3 are different types of metal materials with weldability.
  • the weldability refers to the different elements with the highest content, and the low melting point metal burns.
  • the temperature is lower than the melting point of the high melting point metal, and no brittle phase is formed in the bonding zone of the two metals, and the hardness of the welded part is greater than 80% of the lowest hardness of the two metals.
  • the soaking plate 4 is placed in the through hole 21, and the skirt 49 and the connecting piece 3 are welded.
  • the second limiting structure 32 is formed during the welding process, and one second limiting structure 32 may be formed on each connecting member 3, and at least two second limiting structures may also be formed on each connecting member 3 correspondingly.
  • the welding method can be fusion welding, pressure welding or brazing welding (TA4 titanium alloy is a solid solution strengthened material, even if fusion welding is used, higher material strength can still be obtained).
  • This embodiment provides a middle frame assembly 1.
  • the specific structure of the middle frame assembly 1 in the second embodiment is the same as the structure of the middle frame assembly 1 in the first embodiment, and will not be repeated here.
  • the difference between the second embodiment and the first embodiment lies in the manufacturing method of the middle frame assembly 1 (for the materials of the middle frame, the connecting member and the soaking plate in the second embodiment, please refer to the first embodiment), and the details are as follows:
  • This embodiment provides a manufacturing method of the middle frame assembly 1. As shown in FIG. 28, the specific manufacturing method of the middle frame assembly 1 is as follows:
  • the middle frame blank 23 for making the middle frame 2.
  • the middle frame blank 23 is machined to form the middle frame 2 with through holes 21.
  • the steps of machining the middle frame blank 23 include computer digital control, metal and plastic Combination of nanotechnology, computer digital control, mechanical grinding and polishing of the appearance surface, etc.
  • the middle frame 2 with the through holes 21 is subjected to anodizing treatment, which can form a hard oxide film on the surface of the middle frame to enhance the strength of the middle frame and protect the middle frame.
  • the middle frame 2 with the required structure and appearance is obtained through machining and anodizing treatment.
  • the connecting piece 3 of a material different from the middle frame 2 is combined with the middle frame 2.
  • the middle frame 2 is provided with a through hole 21, and the connecting piece 3 and the middle frame 2 can be integrated by embedding.
  • the connecting piece 3 is embedded in the middle frame 2 after anodization treatment, and a part of the connecting piece 3 is exposed on the surface of the middle frame 2.
  • insert the connecting piece 3 into the middle frame 2 so that the material of the connecting piece 3 is not limited, that is, insert the connecting piece 3 into the middle frame 2 after anodizing, and the connecting piece 3 will not be anodized.
  • the material of the connecting piece 3 can be stainless steel or the like.
  • the process of inserting the connecting piece 3 into the middle frame 2 can be selected according to requirements.
  • the connecting piece 3 can be riveted in after opening a hole in the design position of the middle frame 2, or it can be inserted into the middle frame 2 by screwing in.
  • Other processes are embedded, such as a certain process when processing the cavity before nano-injection or after nano-injection.
  • T103 Provide heat equalizing plate 4, install equalizing plate 4 to middle frame 2.
  • the installation method of the soaking plate 4 refers to the first embodiment, which will not be repeated here.
  • This embodiment provides a middle frame assembly 1.
  • the difference between the structure of the middle frame assembly in the third embodiment and the first embodiment is that the connecting member 3 and the heat equalizing plate 4 are combined differently.
  • the connecting piece 3 is bonded to the surface of the middle frame 2 by means of thermal diffusion, instead of being embedded in the middle frame 2.
  • the specific structure of the middle frame assembly 1 of the third embodiment is as follows (wherein, the structure of the middle frame 2 of the third embodiment Refer to the structure of the middle frame 2 in the first embodiment.
  • the inner side wall of the middle frame 2 facing the through hole 21 includes at least two mounting surfaces 25, and the connecting member 3 includes at least two connecting surfaces 30, so that the at least two connecting surfaces 30 of the connecting member 3 They are combined with at least two mounting surfaces 25 respectively.
  • the at least two connecting surfaces 30 of the connecting member 3 and the at least two mounting surfaces 25 of the middle frame 2 can be combined by thermal diffusion.
  • the connecting member 3 is sandwiched between the middle frame 2 and the skirt 49, so that the first limiting structure 31 and the second limiting structure 32 are combined to realize the limiting in the first direction X1 and the second direction X2, specifically ,
  • the first limiting structure 31 prevents the connecting member 3 from falling off in the first direction X1 to achieve the limiting in the first direction X1
  • the second limiting structure 32 prevents the connecting member 3 from falling off in the second direction X2 to achieve the second direction The limit.
  • the connecting member 3 can have different structures.
  • the connecting member 3 can be in an "L" shape, and the skirt 49 of the heat equalizing plate 4 is overlapped on the "L"-shaped connecting member 3.
  • the connecting member 3 can also be long Strip or irregular shapes (refer to FIG. 30), as long as there are at least two connecting surfaces combined with the middle frame 2.
  • At least two connecting surfaces 30 of the connecting piece 3 and at least two mounting surfaces 25 of the middle frame 2 can be combined by means of thermal diffusion.
  • the connecting piece 3 and the middle frame 2 There is a clear boundary line at the joint of frame 2 (the boundary line of the joint can be clearly displayed by corrosion, etc.), and there is no heat-affected zone.
  • the size of the composite area A1 is less than or equal to 0.1mm (see Figure 31). After welding, There is good thermal conductivity between the connecting piece 3 and the middle frame 2.
  • the size of the welded melting area B3 of the welded metal B1 and metal B2 is usually greater than 0.1mm, and after welding, the heat-affected zone B11 of metal B1 and the heat-affected zone B21 of metal B2 are formed, B11 ⁇ 0.1mm, B21 ⁇ 0.1mm is not conducive to the heat conduction between the combined metal B1 and metal B2 (refer to Figure 32).
  • This embodiment provides a manufacturing method of the middle frame assembly 1. As shown in FIG. 33 and FIG. 34, the specific manufacturing method of the middle frame assembly 1 is as follows:
  • Making the middle frame 2 includes forming the middle frame to which the connecting piece 3 is fixed, and the connecting piece 3 is integrated with the middle frame 2 by means of thermal diffusion, which specifically includes the following steps:
  • the aluminum alloy extrusion process is adopted to obtain the 6013-T4 (naturally aged state) aluminum alloy blank of the required size, and the 6013-T4 (naturally aged state) aluminum alloy blank is subjected to double-sided grinding and surface fine grinding to obtain a spare medium Frame blank 23; surface finish grinding of TA4-M (annealed) titanium alloy of a specific size and specification to obtain a spare connector blank 310; through thermal diffusion, the middle frame blank 23 and connector blank 310 are compounded to obtain a composite blank 320.
  • the middle frame blank 23 (that is, 6013-T4 (naturally aged) aluminum alloy) changes from the T4 state to the O state (annealed state), and the connecting piece blank 310 (that is, TA4-M (annealed) titanium alloy)
  • the TA4 titanium alloy still maintains the M state.
  • the composite blank is punched and forged.
  • the composite billet is processed through punching, computer digital control, and double-sided grinding to obtain a composite billet 320 of required specifications.
  • punching and forging is performed from the inner area of the connector blank 310.
  • part of the connector blank 310 remains on the top surface of the middle frame blank 23, and the part of the connector blank 310 that is punched and forged is embedded In the middle frame blank 23.
  • the composite blank 320 is machined (removing the unnecessary part of the blank).
  • the machining steps include computer digital control, metal and plastic combination with nanotechnology, computer digital control, mechanical grinding and polishing of the appearance surface, etc.
  • the middle frame 2 provided with the connecting pieces is of the required shape and appearance, and a part of the connecting pieces 3 is exposed on the surface of the middle frame.
  • the machined material is anodized, and the connecting piece 3 made of titanium alloy has excellent corrosion resistance, and no corrosion occurs when the middle frame 2 made of aluminum alloy is anodized.
  • the 6013 (naturally aged state) aluminum alloy ie the middle frame blank 23
  • T6 state peak aging state
  • TA4-M annealed state titanium alloy
  • the heat treatment in step T1014 may be performed on the composite blank first, and then the machining in step T1013 may be performed.
  • T102 provide soaking plate 4.
  • This embodiment provides a middle frame assembly 1.
  • the difference between this embodiment and the third embodiment is that the raw materials can be composited in large pieces first.
  • this embodiment can use hot stack rolling to combine at least two The connecting piece blank and the large-size middle frame blank are combined to prepare a composite blank, and the composite blank is cut to form a plurality of small-size middle frame composite blanks.
  • the raw materials are composited in large pieces, and the cutting process is adopted for preparation, which has high processing efficiency and low cost.
  • This embodiment provides a middle frame assembly 1.
  • the difference between the structure of the middle frame assembly in the fifth embodiment and the third embodiment lies in the structure of the middle frame 2 and the connecting piece 3.
  • the middle frame in the third embodiment It is an integrated structure, and the connecting piece is also an integrated structure.
  • the middle frame of this embodiment is a split structure, and the connecting piece is also a split structure.
  • the specific structure of the frame assembly 1 in this embodiment is as follows (wherein, the soaking plate 4 Refer to the specific structure of the heat equalizing plate 4 provided in the foregoing first aspect for the structure, which will not be repeated here.
  • the connecting member and the heat equalizing plate of the fifth embodiment refer to the first embodiment:
  • the middle frame 2 includes four sub-frame members 26, the number of connecting members 3 is four, the connecting members 3 are strip-shaped, and the four connecting members 3 are respectively combined on the four sub-frame members 26,
  • the sub-frame member 26 combined with the connecting member 3 is spliced into the middle frame 2.
  • the connecting piece 3 and the middle frame 2 can be combined by heat diffusion or hot stack rolling.
  • the number of sub-frame members 26 is at least two.
  • the number of sub-frame members 26 can be two, three, five, etc., and the split sub-frame members can improve the material utilization rate. , Reduce material costs.
  • the middle frame combined with the connector is provided with an antenna slot 370 for installing an antenna.
  • the overall structure of the middle frame assembly 1 of the fifth embodiment and the third embodiment is the same, except that the manner in which the middle frame and the connecting member are formed is different, which will not be repeated here.
  • This embodiment provides a manufacturing method of the middle frame assembly 1. As shown in FIG. 36, the specific manufacturing method of the middle frame assembly 1 is as follows:
  • the aluminum alloy extrusion process is adopted to obtain the 6013-T4 (naturally aged state) aluminum alloy blank of the required size, and the 6013-T4 (naturally aged state) aluminum alloy blank is subjected to double-sided grinding and surface fine grinding to obtain a spare medium Frame blank 23, the surface of TA4-M (annealed) titanium alloy of a specific size specification is subjected to surface finish grinding to obtain a spare connector blank 310.
  • the middle frame blank 23 and the connector blank are combined by thermal diffusion or hot stack rolling. 310 is compounded to obtain a composite blank.
  • the middle frame blank 23 (that is, 6013-T4 (natural aging state) aluminum alloy) changes from the T4 state to the O state (annealed state), and the connecting piece blank 310 (that is, TA4-M (annealed) State) Titanium alloy) TA4 titanium alloy still maintains M state.
  • the composite billet is subjected to solid solution and aging treatment, so that the 6013 (naturally aged state) aluminum alloy (ie the middle frame blank 23) is transformed into the T6 state (peak aging state), TA4-M (annealed state) titanium alloy (ie the connecting piece blank 310) remains in the M state.
  • the large-size composite blank is cut to form four small-size composite blanks 320.
  • the cut composite blank 320 is machined.
  • the machining steps include computer digital control, nanotechnology combination of metal and plastic, computer digital control, mechanical grinding and polishing of the appearance surface, etc., to obtain the required size specifications.
  • T102 Splicing four composite blanks 320 by plastic injection or welding to form the frame of the middle frame 2, and perform computer digital control on the spliced frame, combining metal and plastic with nanotechnology, computer digital control, and appearance machinery Machining treatments such as grinding and polishing are used to precisely adjust the size of the middle frame 2 and anodize.
  • the connector 3 made of titanium alloy has excellent corrosion resistance.
  • the middle frame 2 made of aluminum alloy is anodized Corrosion does not occur from time to time.
  • T103 Provide heat equalizing plate 4, install equalizing plate 4 to middle frame 2.
  • the schematic diagram of the middle frame 2 after the T102 step is a top plan view of the middle frame 2
  • the schematic diagram of the middle frame 2 with the equalizing plate 4 installed after the T103 step is a cross-sectional view.
  • the fifth embodiment adopts the split composite blank splicing method to form the middle frame, which can improve the material utilization rate and reduce the material cost.
  • This embodiment provides a middle frame assembly 1.
  • the structure of the middle frame assembly 1 of the sixth embodiment and the middle frame assembly of the fifth embodiment are the same, and will not be repeated here (wherein, the middle frame and the connecting piece in this embodiment And the material of the soaking plate, see Example 1).
  • the difference between the sixth embodiment and the fifth embodiment is that the fifth embodiment first uses thermal diffusion or hot stack rolling to form a composite blank, then cuts to form multiple small-sized composite blanks, and splices multiple composite blanks to form a composite blank.
  • Frame the sixth embodiment first splicing split middle frame blanks to form a middle frame frame or adopting an integrated middle frame, and then at least two split connecting pieces are combined into the spliced middle frame by means of thermal diffusion or hot stacking.
  • this embodiment provides a manufacturing method of the middle frame assembly 1, as shown in FIGS. 37 and 38, the specific manufacturing method of the middle frame assembly 1 is as follows:
  • the aluminum alloy extrusion process is adopted to obtain the 6013-T4 (naturally aged state) aluminum alloy blank of the required size, and the 6013-T4 (naturally aged state) aluminum alloy blank is subjected to double-sided grinding and surface fine grinding to obtain a spare medium Frame blank, the middle frame blank is machined to form the middle frame 2.
  • the surface of TA4-M (annealed) titanium alloy of a specific size specification is subjected to surface fine grinding to obtain a spare connector blank, which is cut into large-size connector blanks
  • Four small-size connecting piece blanks ie, the first connecting piece blank 330 and the second connecting piece blank 340, the third connecting piece blank 350, and the fourth connecting piece blank 360) are centered by thermal diffusion or hot stack rolling.
  • Frame 2 is spliced with the first connecting piece blank 330, the second connecting piece blank 340, the third connecting piece blank 350, and the fourth connecting piece 360 blank, and the spliced material is solid solution and aging treatment.
  • 6013- The T4 (naturally aged state) aluminum alloy ie, the middle frame blank 23
  • the T6 state peak aging state
  • the TA4-M (annealed) titanium alloy ie, the connector blank 310) remains in the M state.
  • the middle frame 2 after solid solution and aging treatment is machined.
  • the machining steps include computer digital control, metal and plastic combination with nanotechnology, computer digital control, mechanical grinding and polishing of the appearance surface, etc., to form the required size And the appearance of the middle frame 2.
  • the machined middle frame is anodized.
  • the titanium alloy connector has corrosion resistance and will not corrode during the anodization process.
  • T102 Provide heat spreader 4, install heat spreader 4 to middle frame 2.
  • the schematic diagram of the middle frame 2 after the T101 step is a top plan view of the middle frame 2
  • the schematic diagram of the middle frame 2 with the heat spreader 4 installed after the T102 step is a cross-sectional view.
  • the frame body of the middle frame is formed, and then the strip-shaped connecting pieces are combined with the middle frame by thermal diffusion or hot rolling.
  • the position of the antenna slot 370 in the sixth embodiment The number of sums can be set as required (refer to FIG. 38, FIG. 39, and FIG. 40), and the number of antenna slots 370 can be two, three, four, etc., without being limited by the position of the splicing slot.
  • the middle frame component of the seventh embodiment can be the middle frame component in any one of the first to the sixth embodiments (that is, the structure of the middle frame component of the seventh embodiment can be the same as that of the first embodiment).
  • the structure of the middle frame assembly in any of the first to sixth embodiments is the same).
  • the seventh embodiment provides a method for manufacturing the middle frame assembly.
  • spraying, vacuum non-conductive coating, and physical vapor deposition can be used.
  • the chemical vapor deposition method can replace the anodizing treatment in the first to sixth embodiments to form a protective film on the surface of the middle frame to protect the middle frame.
  • the connecting piece can be made of stainless steel, copper alloy and other materials.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Computer Hardware Design (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Power Engineering (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

本申请涉及均热板及其制作方法、中框组件及其制作方法及电子设备,中框组件包括中框、连接件和均热板,中框设有通孔,连接件与中框固定连接,部分连接件外露形成焊接部,均热板包括均热板主体和包围均热板主体的裙边,均热板容置在通孔内,裙边与焊接部焊接。本申请通过采用连接件连接中框和均热板并焊接连接件和均热板,实现中框和均热板高强度、超薄的连接,并使均热板与中框之间具有良好的热传导性能。

Description

均热板及其制作方法、中框组件及其制作方法及电子设备
本申请要求于2020年4月18日提交中国国家知识产权局、申请号为202010308678.1、发明名称为“均热板及其制作方法、中框组件及其制作方法及电子设备”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及移动通信领域,尤其涉及了一种均热板及其制作方法、中框组件及其制作方法及电子设备。
背景技术
随着手持移动终端(例如,手机)智能化程度越来越高,越来越多的天线、更先进的芯片和器件以及高容量的电池广泛应用于手机中,它们在运行的过程中会产生更多的热量,过多的热量造成手机温升过高则会影响消费者的直观体验。
为解决手机散热难题,通常采用两相散热法,如均热板。目前,均热板通常采用铜金属材质,铜合金材料经过高温烧结成型后,强度和硬度降低,整体不能作为结构承力件,且受到轻微外力后容易发生变形、凹陷等缺陷导致导热性能损失。铜合金密度大,不利于整机减重。此外,均热板与手机中框的结合方式也不能完全满足产品需求,均热板与中框的叠合厚度大,不利于整机减薄,均热板与中框通常采用粘接的方式进行结合,导致传热性能差,结合强度有限。
如何制作均热板,解决均热板强度低、密度大的问题及如何设置均热板与中框的结合,实现均热板和中框之间高强度、超薄的连接,并使均热板与中框之间具有良好的热传导性能应为业界研发的方向。
发明内容
本申请提供一种均热板及其制作方法、中框组件及其制作方法及电子设备,通过采用复合板材使得均热板具有高强度,低密度的特性,并通过设计独特的均热板与中框的结合方式,实现均热板和中框之间高强度、超薄的连接,并使均热板与中框之间具有良好的热传导性能。
第一方面,本实施例提供一种均热板,所述均热板包括第一盖板和第二盖板,所述第二盖板包括第一金属层和第二金属层,所述第一金属层包括主体区和包围所述主体区的边缘区,所述第二金属层与所述主体区重叠,第二金属层与主体区重叠指的是第二金属层设在主体区的表面,边缘区未被第二金属层覆盖。所述边缘区用于所述第一盖板的边缘结合,以在所述第一盖板和所述第二盖板之间形成封闭腔体,所述第二金属层位于所述封闭腔体内,所述第二金属层的表面形成毛细结构,所述第一金属层的材料强度大于所述第二金属层的材料强度。
本申请通过将第二盖板设置为复合板材,即第二盖板包括第一金属层和第二金属层,且第一金属层的材料强度大于第二金属层的强度,使得均热板具有高强度的特性。
第二金属层的材料可以为含有铜的金属材质,例如铜合金,铜合金易于制作毛细结构,具稳定性。本申请通过将第二盖板设计为复合板材结构,能够避免了均热板整体采用单一强度较小的金属材质(例如铜金属材质)制作时,经过高温烧结成型后,铜金属材质的均热板强度和硬度降低,整体不能作为结构承力件的问题,且整体为铜金属材质的均热板在受到轻 微外力后容易发生变形、凹陷等缺陷导致导热性能损失,而本申请的第一金属层的材料强度均大于铜层,使得均热板整体具有较高的强度。本申请的毛细结构通过在铜层上烧结形成,可以避免毛细结构在其他金属材料上成型困难、良率低的问题,实现了增强均热板的结构强度和散热性能的作用。
为了强化均热板的强度,第一盖板的材料的强度也可以大于第二金属层的材料的强度。
一种可能的实现方式中,在垂直于第一金属层所在的平面的方向上,铜层的厚度小于0.15mm,铜层的作用是用于在铜层上制作毛细结构,只要可以将铜粉或铜网放置到铜层上烧结形成毛细结构,因此,铜层的厚度可以较薄,减小铜层的厚度有利于减少均热板的厚度,实现整机减薄,且铜层的厚度较薄时,可以在腔体内预留更大的空间注入更多的工质,有利于提高均热板的散热性能,优选的实施方式中,铜层可以为0.05mm厚度的铜金属,铜层的厚度也可以为0.03mm,铜层为厚度可以根据需要调整。
一种可能的实现方式中,所述边缘区与所述第一盖板的边缘通过焊接密封连接。焊接密封可以增强第一金属层和第一盖板的结合强度,防止腔体内的液态工质泄露。
具体而言,第一盖板可以包括第三金属层,第三金属层的材料的强度大于第二金属层的材料的强度。
一种可能的实现方式中,所述第三金属层的材料与所述第一金属层为同种类型的金属材料。同种类型的金属材料是指第三金属层的材料和第一金属层中含量最高的元素相同,同种类型的金属材料焊接时,无脆性相生成,可以具有较高的焊接强度。
一种可能的实现方式中,所述第三金属层的材料为钛合金或不锈钢。具体而言,所述第三金属层的材料与所述第一金属层为同种类型的金属材料时,第三金属层的材料和第一金属层的材料可以同时为钛合金,或第三金属层的材料和第一金属层的材料也可以同时为不锈钢,第三金属层的材料和第一金属层的材料也可以为其他高强度的金属材料。
一种可能的实现方式中,所述第三金属层的材料与所述第一金属层为具有可焊性的不同类型的金属材料。可焊性是指含量最高的元素不同,低熔点金属的烧损温度小于高熔点金属的熔点,且两种金属的结合区无脆性相生成,焊接部硬度大于两种金属中最低硬度的80%以上。具有可焊性的两种金属焊接时,可以提高第三金属层和第一金属层的结合强度,实现良好的密封效果,防止腔体内的液态工质泄露。
一种可能的实现方式中,所述第三金属层的材料可以为钛合金,所述第一金属层的材料为与第三金属层(即钛合金)具有可焊性的材料;或者所述第一金属层的材料为钛合金,所述第三金属层的材料为与第一金属层(即钛合金)具有可焊性的材料。
一种可能的实现方式中,所述第一盖板包括第一板体,所述第二盖板包括第二板体,所述第一板体和所述第二板体相对间隔设置,所述第一板体设第一开孔,所述第二板体设第二开孔,所述均热板包括密封结构,所述密封结构在所述第一开孔和所述第二开孔处与所述第一板体和所述第二板体密封连接与所述第一板体和所述第二板体连接,且共同包围所述封闭腔体,所述第一开孔和所述第二开孔连通所述密封结构形成贯穿形成所述均热板的通孔。通孔用于穿过传输线,比如,传输线可以为柔性电路板,柔性电路板穿过所述均热板的通孔与印刷电路板连接。传输线直接穿过所述均热板的通孔连接均热板两侧的电子器件,可以使得传输线的延伸路径较短,无需从均热板的外围绕过,这种架构不但有利于节约电子设备内的布线空间,还可以保证传输线的信号传输质量。
一种可能的实现方式中,所述密封结构包括第一凸台和第二凸台,所述第一凸台为与所 述第一板体一体成型的结构,所述第一凸台形成在所述第一开孔的边缘位置,所述第二凸台为与所述第二板体一体成型的结构,所述第二凸台形成在所述第二开孔的边缘位置,所述第一凸台与所述第二凸台对接,使得所述这第一开孔和所述第二开孔连通形成所述均热板的所述通孔。第一凸台和第二凸台的对接处可以通过焊接的方式形成密封结构,封闭腔体。
一种可能的实现方式中,所述密封结构包括第一凸台,所述第一凸台为与所述第一板体一体成型的结构,所述第一凸台形成在第一板本的第一开孔的边缘位置,所述第二板体的第二开孔处无需设置凸台结构,所述第一凸台延伸至所述第二板体的第二通孔处,且与所述第二板体密封焊接,以使所述第一开孔和第二开孔连通形成所述均热板的所述通孔。本实施方式中的密封结构与第一板体为一体式的结构。
一种可能的实现方式中,所述密封结构包括第二凸台,所述第二凸台为与所述第二板体一体成型的结构,所述第二凸台形成在第二板体的第二开孔的边缘位置,所述第一板体的第一开孔处无需设置凸台结构,所述第二凸台延伸至所述第一板体的所述通第一开孔处,且与所述第一板体密封焊接,以使所述第二开孔和所述第一开孔连通形成所述均热板的所述通孔。本实施方式中的密封结构与第二板体为一体式的结构。
一种可能的实现方式中,所述密封结构为独立于所述第一板体和所述第二板体的单体结构,所述密封结构围设形成中空通道,所述密封结构包括第一连接端和第二连接端;在所述第一开孔的边缘位置处,所述第一连接端与所述第一板体密封焊接;在所述第二开孔的边缘位置处,所述第二连接端与所述第二板体密封焊接,所述密封结构的中空通道连通在所述第一开孔和所述第二开孔之间,以形成所述均热板的所述通孔。换言之,密封结构与均热板为分体式结构,将密封结构的两端与第一开孔和第二开孔处的板体对接,并通过焊接密封腔体。
上述密封结构可以为套筒式结构,其它可能的实现方式中,密封结构也可以为片状结构,片状密封结构的两端分别环绕所述第一板体的第一开孔和所述第二板体的第二开孔且共同包围所述封闭腔体。片状的密封结构可以具有柔性的特征,在形状上可以灵活设置,且节约空间。其它可能的实现方式中,密封结构也可以为膏状,在第一开孔和第二开孔周围位置,将膏状金属填满第一板体和第二板体之间的缝隙,通过加温加压或者热扩散的方式将膏状物质固化,形成密封结构。膏状的密封结构可以通过将具有一定程度形变的膏状物质填充进缝隙并固化形成。
一种可能的实现方式中,以所述第一板体所在的平面为基准面;所述均热板的所述通孔的延伸方向垂直于所述基准面,或者,所述均热板的所述通孔的延伸方向与所述基准面之间的夹角小于90°。所述均热板的通孔的延伸方向可以根据需要设置,所述均热板的通孔的延伸方向与基准面之间的夹角小于90°时,即第一通孔与第二通孔错位设置,柔性电路板穿过通孔,柔性电路板弯折的角度也小于90°,有利于保持柔性电路板的良好性能,提高柔性电路板的使用寿命。
一种可能的实现方式中,所述密封结构为台阶状,或所述密封结构的内壁平滑设置。密封结构的内壁的形状不限,只要能够穿过传输线且不影响传输线的性能即可。
一种可能的实现方式中,所述封装腔体内设有连接结构,所述连接结构的两端固定连接所述第一盖板和所述第二盖板,以避免均热板受热后第一盖板和第二盖板容易发生起包、翘曲等变形造成与其他器件干涉的问题。具体而言,连接结构可以与第一盖板为一体式结构,并在第二盖板的外表面进行焊接,以将连接结构固定至第二盖板,或者,连接结构可以与第二盖板为一体式结构并焊接至第一盖板。
第二方面,本申请提供一种均热板的制作方法,制作第一盖板,所述第一盖板包括第三金属层;制作第二盖板,所述第二盖板包括第一金属层和第二金属层,第二金属层可以为铜层,所述第一金属层包括主体区和包围所述主体区的边缘区,所述第二金属层与所述主体区重叠,第二金属层与主体区重叠指的是第二金属层设在主体区的表面,边缘区未被第二金属层覆盖。所述第一金属层的材料强度大于所述第二金属层的材料强度;在所述第二盖板的所述第二金属层的表面制作毛细结构;结合所述第一盖板和所述第二盖板,将所述边缘区与所述第三金属层的边缘固定连接,以在所述第一盖板和所述第二盖板之间形成封闭腔体。
具体而言,所述第三金属层的材料的强度大于所述第二金属层的材料强度。
本申请通过将第三金属层制作为第一盖板,第一金属层和铜层制作为第二盖板,并固定连接第一盖板和第二盖板形成具有封闭腔体的均热板,由于第三金属层的材料和第一金属层的材料的强度均大于铜层的强度,使得均热板具有高强度的特性。本申请的毛细结构通过在铜层上烧结形成,可以避免毛细结构在其他金属材料上成型困难、良率低的问题,实现了增强均热板的结构强度和散热性能的作用。均热板的结构强度好,其使用在电子设备中时,可以作为承载件,承载电子设备内的器件。
一种可能的实施方式中,铜层可以通过电镀、轧制、热扩散等方式固定至第一金属层的主体区形成第二盖板。
一种可能的实现方式中,所述边缘区与所述第一盖板的边缘通过焊接密封连接。焊接密封可以增强第一金属层和第三金属层的结合强度,防止腔体内的液态工质泄露。
一种可能的实现方式中,所述第三金属层的材料与所述第一金属层的材料为同种类型的金属材料。同种类型的金属材料是指第三金属层的材料和第一金属层中含量最高的元素相同,同种类型的金属材料焊接时,无脆性相生成,可以具有较高的焊接强度。
一种可能的实现方式中,所述第三金属层的材料为钛合金或不锈钢。具体而言,所述第三金属层的材料与所述第一金属层为同种类型的金属材料时,第三金属层的材料和第一金属层的材料可以同时为钛合金,或第三金属层的材料和第一金属层的材料也可以同时为不锈钢,第三金属层的材料和第一金属层的材料也可以为其他高强度的金属材料。
一种可能的实现方式中,所述第三金属层的材料与所述第一金属层为具有可焊性的不同类型的金属材料。可焊性是指含量最高的元素不同,低熔点金属的烧损温度小于高熔点金属的熔点,且两种金属的结合区无脆性相生成,焊接部硬度大于两种金属中最低硬度的80%以上。具有可焊性的两种金属焊接时,可以提高第三金属层和第一金属层的结合强度。
一种可能的实现方式中,所述第三金属层的材料为钛合金,所述第一金属层为与第三金属层(即钛合金)具有可焊性的材料;或者所述第一金属层为钛合金,所述第三金属层的材料为与第一金属层(即钛合金)具有可焊性的材料。
一种可能的实现方式中,在制作所述第一盖板的过程中,在形成所述第一盖板的第一板体上设第一开孔,在制作所述第二盖板的过程中,在形成所述第二盖板的第二板体上设第二开孔,在结合第一盖板和第二盖板的过程中,在第一开孔和第二开孔之间处形成密封结构,所述密封结构与所述第一板体和所述第二板体连接,且共同包围所述封闭腔体,所述密封结构处,第一开孔和第二开孔连通形成贯穿所述均热板的通孔。
具体的制作过程中,密封结构的架构可以包括但不限于如下几种方案,分别为:
第一种方案,部分密封结构与第一板体为一体式的结构,部分密封结构与第二板体为一体式结构,结合第一盖板和第二盖板的过程中,将两部分密封结构对接密封固定。
第二种方案,密封结构与第一板体为一体式的结构,结合第一盖板和第二盖板的过程中,将密封结构远离第一板体的端部与第二板体的第二开孔的边缘结合且密封固定。
第三种方案,密封结构与第二板体为一体式的结构,结合第一盖板和第二盖板的过程中,将密封结构远离第二板体的端部与第一板体的第一开孔的边缘结合且密封固定。
第四种方案,密封结构为独立于所述第一板体和所述第二板体的单体结构,将密封结构的两端密封连接在第一板体的第一开孔边缘位置和第二板体的第二开孔的边缘位置。此方案下的密封结构可以为套筒状结构,也可以为柔性的片状结构,或者膏状结构。
在制作第一板体和第二板体上的开孔的过程中,可以将第一开孔和第二开孔正对,即以所述第一板体所在的平面为基准面,在垂直于基准面的方向上,第一开孔和第二开孔正对;也可以将第一开孔和第二开孔错位设置,这样形成的所述均热板的通孔为倾斜的,即所述均热板的通孔的延伸方向与所述基准面之间的夹角小于90°。
一种可能的实现方式中,结合所述第一盖板和所述第二盖板的过程中,还包括将在所述封装腔体内的连接结构的两端分别固定连接所述第一盖板和所述第二盖板,以避免均热板受热后第一盖板和第二盖板容易发生起包、翘曲等变形造成与其他器件干涉的问题。
第三方面,本申请提供一种中框组件,所述中框组件包括中框、连接件和均热板,所述中框设有通孔,所述连接件与所述中框固定连接,部分所述连接件外露形成焊接部,所述焊接部位于所述通孔的内壁或者所述中框的用于承载电子设备内的器件的表面,所述均热板包括均热板主体和包围所述均热板主体的裙边,所述均热板容置在所述通孔内,所述裙边与所述连接件焊接,以使所述均热板与所述中框组合,共同作为电子设备内的承载件。所述连接件与所述裙边为同种类型的金属材料,或者所述连接件与所述裙边为具有可焊性的不同类型的金属材料。同种类型的金属材料是指金属材料中含量最高的元素相同,同种类型的金属材料焊接时,无脆性相生成,可以具有较高的焊接强度。可焊性是指含量最高的元素不同,低熔点金属的烧损温度小于高熔点金属的熔点,且两种金属结合区无脆性相生成,焊接部硬度大于两种金属中最低硬度的80%以上。
本申请通过采用连接件与中框结合为一体,并焊接连接件和均热板,实现中框和均热板高强度、超薄的连接,并使均热板与中框之间具有良好的热传导性能。具体而言,中框和均热板的边缘通常为不同材质,不同材质的中框和均热板直接进行焊接,易产生脆性相,不利于中框和均热板结合强度的提升。传统的中框与均热板之间也可以采用粘贴的方式结合,导致传热性能差,结合强度有限。本申请通过采用连接件作为中框与均热板之间的过渡结构件,将连接件固定至中框上,并焊接连接件与均热板的裙边,由于连接件与均热板的裙边为同种类型的金属材料,或者连接件与裙边为具有可焊性的不同类型的金属材料,焊接时,可以使连接件和均热板具有较高的焊接强度,提高了均热板与中框的结合强度。此外,均热板位于中框的通孔位置处,不会增加或较少增加中框的厚度,实现了中框与均热板的超薄连接。连接件为金属材质,均热板与中框之间为金属连接,有利于两者之间的热传导。
一种可能的实现方式中,所述均热板为前述第一方面所述的任意一种可能的实现方式中的均热板,所述第一金属层的所述边缘区与所述第三金属层的边缘结合以形成所述裙边。其它实施方式中,均热板也可以为其它结构形态的均热板,本申请不做限定。
一种可能的实现方式中,所述连接件与所述中框的结合处设有第一限位结构,以实现第一方向上的限位;所述连接件与所述裙边通过焊接形成第二限位结构,以实现第二方向上的限位,所述第一方向和所述第二方向为相反的方向。连接件和中框之间通过嵌入的方式结合 时,连接件易于从中框上脱落,通过在连接件与中框的结合处设置第一限位结构,可以防止连接件在第一方向上脱落,连接件与裙边通过焊接的方式形成第二限位结构,阻止了连接件沿着第二方向脱落。本申请通过第一限位结构和第二限位结构共同作用,使得连接件在中框和均热板之间的结合更稳固,可以做到中框组件的薄型化,具体而言,中框上用于结合连接件的部分不需要很厚的材质,中框薄型化的结构情况下,第一限位结构和第二限位结构可以弥补较薄中框的强度不足,使得中框组件的强度得到保证,连接件与中框的结合稳固可靠。
一种可能的实现方式中,所述连接件内嵌至所述中框内部,所述连接件包括相对的第一端面和第二端面及连接在所述第一端面和所述第二端面之间的侧面,所述侧面位于所述中框的内部,所述第二端面外露在所述中框的表面,第二端面外露的部分作为焊接部,用于与裙边进行焊接。第一端面也可以外露在中框的表面,第一端面也可以位于中框的内部,例如:对中框采用塑胶注塑封盖在第一端面的底部形成塑料层,这样第一端面就不会外露在中框的表面。
一种可能的实现方式中,所述第一限位结构位于所述连接件的所述第一端面,所述第二限位结构位于所述连接件的所述第二端面,所述第一限位结构包括形成在所述连接件的所述第一端面的限位脚和形成在所述中框上的限位台,所述限位脚位于所述限位台远离所述第二限位结构的一侧,且搭接固定在所述限位台上。限位台用于阻止连接件沿着第一方向上脱落。
一种可能的实现方式中,所述第一限位结构形成于所述侧面,所述第二限位结构位于所述连接件的所述第二端面,所述第一限位结构包括形成在所述连接件的所述侧面上的凹陷部和形成在所述中框上的凸出部,所述凸出部与所述凹陷部配合。凸出部与凹陷部相互配合使得连接件卡接在中框上,阻止连接件沿着第一方向上脱落。
一种可能的实现方式中,所述第一限位结构和所述第二限位结构位于所述第二端面位置处,所述侧面和所述第二端面之间通过限位面连接,所述限位面为相对所述第二端面倾斜延伸的斜面,所述第二端面用于焊接所述裙边,所述第一限位结构包括所述限位面及与所述限位面配合的所述中框上的限位部,所述限位部固定连接在所述裙边和所述限位面之间。
一种可能的实现方式中,所述连接件通过热扩散或热叠轧的方式结合在所述中框的表面,所述连接件夹设在所述中框和所述裙边之间,以使所述第一限位结构和所述第二限位结构结合实现第一方向和第二方向上的限位。连接件与中框的结合方式可以为嵌入结合,连接件也可以位于中框的表面,一侧与中框固定连接,一侧与均热板固定连接,实现在第一方向和第二方向上的双向限位。
一种可能的实现方式中,所述中框朝向所述通孔的内侧壁包括至少两个安装面,所述连接件包括至少两个连接面,以使所述连接件的至少两个所述连接面分别与所述至少两个安装面结合。可以采用热扩散的方式实现连接件的至少两个连接面分别与中框的至少两个安装面的结合,热扩散焊接连接件的连接面与中框的安装面使得连接件和中框的结合处有清晰的边界线,且无热影响区,连接件与中框的复合区域的尺寸小于等于0.1mm,有利于热传导。
一种可能的实现方式中,所述中框包括至少两个子框件,所述连接件的数量为至少两个,所述连接件呈条状,至少两个所述连接件分别对应结合在所述至少两个子框件上,所述至少两个子框件拼接成所述中框。中框可以为分体式结构,分别将至少两个连接件固定到至少两个子框件上,并将分体式的至少两个子框件拼接形成中框,可以提高材料利用率,降低成本。
一种可能的实现方式中,所述中框为一体式框架结构,所述连接件包括第一连接件和第二连接件,所述第一连接件和所述第二连接件呈条状。条状的第一连接件和第二连接件分别 固定至一体式结构的中框上,实现连接件与中框的结合。
一种可能的实现方式中,所述通孔为台阶形通孔,所述通孔的所述内壁包括台阶面,所述连接件内嵌于所述中框,且所述焊接部位于所述台阶面上,所述裙边搭接在所述台阶面并焊接至所述焊接部。连接件与中框的结合可以采用嵌入的方式,嵌入方向可以沿垂直于中框所在的平面的方向,也可以与中框所在的平面的方向呈一定角度嵌入,连接件的数量为多个时,多个连接件嵌入的方向可以相同也可以不同,可以根据需要设置。
一种可能的实现方式中,所述通孔为直形通孔,所述通孔的所述内壁朝向所述通孔的内部,所述焊接部位于所述通孔的内壁,所述裙边相较所述均热板主体弯折,所述连接件内嵌于所述中框,所述连接件从所述中框的外边缘的位置延伸至所述通孔的所述内壁。均热板的外观特征不限于平面状,也可以是曲面状、异型状,具体根据中框的外观特征设置。
一种可能的实现方式中,所述中框设有搭接面,所述搭接面为所述中框用于承载电子设备内的器件的表面,所述焊接部位于所述搭接面,所述裙边搭接在所述搭接面并焊接至所述搭接面上的焊接部。
一种可能的实现方式中,所述连接件和所述均热板之间的所述第二限位结构的数量为多个,所述连接件与所述第二限位结构一一对应,即每个连接件上设置一个第二限位结构。第二限位结构上形成焊点,每个第二限位结构对应的焊点的数量可以为一个,也可以为多个。连接件可以为铆钉、嵌入金属板、螺钉、板材等,连接件为铆钉、螺钉等需要嵌入固定的连接件时,嵌入工序可根据需要进行,例如,可以在中框上开孔,铆钉铆入孔内,或者将螺钉拧入,铆钉、螺钉等的形状、尺寸、数量不限。铆钉可以从中框的任意位置铆入,以实现和均热板位置的配合。
一种可能的实现方式中,所述连接件和所述均热板之间的所述第二限位结构的数量为多个,所述连接件呈长条形,每个所述连接件对应至少两个所述第二限位结构。连接件的数量为多个时,每个连接件上对应的第二限位结构的数量可以为一个,也可以为多个。与中框结合的多个连接件的形态可以不同,结合方式可以为嵌入式,也可以位于中框的表面,具体可以根据产品需要设置。
一种可能的实现方式中,所述均热板呈方形或多边形架构,所述通孔的形状与所述均热板匹配,所述均热板的每条边处的所述裙边均对应设置至少一个所述连接件。一种可能的实现方式中,所述均热板的所述裙边的材质为铜合金或不锈钢,所述中框的材质为钛合金或铝合金。
第四方面,本申请提供一种中框组件的制作方法,包括:制作中框,过程中将与所述中框的材料不同的连接件与所述中框固定连接,所述中框设有通孔,部分所述连接件外露形成焊接部,所述焊接部位于所述通孔的内壁或者所述中框的用于承载电子设备内的器件的表面;提供均热板,所述均热板包括均热板主体和包围所述均热板主体的裙边;所述裙边与所述连接件为同种类型的金属材料,或者所述裙边与所述连接件为具有可焊性的不同类型的金属材料;安装均热板至所述中框,将所述均热板放置在所述通孔处,并焊接所述裙边和所述连接件的所述焊接部。
本申请通过制作设有通孔的中框,并将均热板安装至通孔内,具体而言,采用连接件连接中框和均热板并焊接连接件和均热板的裙边,实现中框和均热板高强度、超薄的连接,并使均热板与中框之间具有良好的热传导性能。
一种可能的实现方式中,均热板的制作方法同第二方面的各种具体实施方式中的均热板 的制作方法,不再赘述。其它可能的实现方式中,均热板也可以通过其它的制作方法形成,本申请不做限制。
一种可能的实现方式中,制作所述中框的过程中,通过嵌入的方式将连接件与中框结合为一体。
一种可能的实现方式中,制作所述中框的步骤包括:提供用于制作所述中框的坯料;在所述坯料内嵌入所述连接件;对所述坯料进行机加工,形成具有通孔的所述中框,且使得部分连接件外露在中框的表面。
一种可能的实现方式中,形成具有所述通孔的所述中框后,进行阳极氧化处理,所述连接件的材料为钛合金。钛合金具有较好的耐腐蚀性,在阳极氧化处理的过程中不易被腐蚀,连接件也可以为其他耐腐蚀的材质。
一种可能的实现方式中,制作所述中框的步骤包括:提供用于制作所述中框的坯料;对所述坯料进行机加工,形成具有通孔的所述中框;将所述连接件嵌入所述中框,使得部分连接件外露在中框的表面。
一种可能的实现方式中,形成具有所述通孔的所述中框后,对所述中框进行阳极氧化处理,阳极氧化处理后再嵌入所述连接件。由于阳极氧化处理后再嵌入连接件,对连接件的材质具有较少的限制,比如,连接件的材质可以为钛合金、不锈钢等多种材质。
一种可能的实现方式中,所述连接件通过铆接、螺纹拧入的方式嵌入所述中框。
一种可能的实现方式中,所述连接件通过热扩散或热叠轧的方式与所述中框固定连接。热扩散或热叠轧的方式结合可以使连接件和中框具有较强的结合强度。
一种可能的实现方式中,制作所述中框的步骤包括:制备复合坏料,通过热扩散将材料不同的中框坏料和连接件坯料进行结合;对复合坯料进行热处理,通过进行固溶和时效处理,使得所述中框坏料和所述连接件坯料结合;对热处理后的所述复合坯料进行机加工,以形成具有通孔的所述中框,且使得部分连接件外露在中框的表面。
一种可能的实现方式中,制备所述复合坯料的过程中,采用一体式的中框坯料热扩散结合所述连接件坯料。
一种可能的实现方式中,制备所述复合坯料的过程中,采用至少两个中框坯料进行热扩散结合所述连接件坯料,形成至少两个复合板材,对所述至少两个复合板材进行通过机裁切、机加工获得所需尺寸规格的子框件,再将至少两个所述子框件拼接形成所述中框。具体而言,可以通过塑胶注塑方式或者焊接方式拼接成中框的框体。
一种可能的实现方式中,提供一体式的中框坯料及至少两个连接件坯料,所述中框坯料的材料与所述连接件坯料的材料不同;对中框坯料进行加工形成框体结构;制备复合坏料,通过热扩散将材料所述中框坏料和至少两个所述连接件坯料进行结合;对复合坯料进行热处理,通过进行固溶和时效处理,使得所述中框坏料和所述连接件坯料结合;对热处理后的所述复合坯料进行机加工,以形成具有通孔的所述中框,且使得部分连接件外露在中框的表面。
一种可能的实现方式中,在制作所述中框的过程中,通过喷涂、真空不导电镀膜、物理气相沉积或化学气相沉积的方式在所述中框的表面形成保护膜用于保护所述中框。由于不用采用阳极氧化处理,连接件的材质可以为钛合金、不锈钢等多种材质。
第五方面,本申请提供一种电子设备,所述电子设备包括发热件和上述第三方面任一实施方式所述的中框组件,所述发热件对应设置于所述中框组件的所述均热板区域。
第六方面,本申请提供一种电子设备,包括中框、连接件、均热板和电子器件;所述连 接件与所述中框固定连接,部分所述连接件外露在所述中框的表面形成焊接部;所述均热板包括均热板主体和包围所述均热板主体的裙边,所述裙边与所述连接件焊接,以使所述均热板与所述中框组合,共同作为所述电子设备内的承载件;所述连接件与所述裙边为同种类型的金属材料,或者所述连接件与所述裙边为具有可焊性的不同类型的金属材料;所述电子器件设于所述均热板上。
一种可能的实现方式中,所述中框设有第一通孔,所述焊接部为所述通孔的内壁或者所述中框用于承载所述电子器件的表面,所述均热板位于所述第一通孔位置处,所述均热板、所述中框和所述连接件共同构成中框组件,所述均热板设有第二通孔,所述电子设备还包括柔性电路板,所述柔性电路板穿过所述第二通孔,所述柔性电路板分布在所述中框组件相对的两侧。本实施方式中的中框的第一通孔与第三方面中框组件结构中的中框的通孔为同一个意思,本实施方式中的均热板上的第二通孔与第一方向中的均热板上的通孔为同一个意思,为了区别描述,这里使用“第一通孔”和“第二通孔”区分。
一种可能的实现方式中,所述连接件与所述中框的结合处设有第一限位结构,以实现第一方向上的限位;所述连接件与所述裙边通过焊接形成第二限位结构,以实现第二方向上的限位,所述第一方向和所述第二方向为相反的方向。
一种可能的实现方式中,所述均热板包括第一盖板和第二盖板,所述第二盖板包括第一金属层和第二金属层,所述第一金属层包括主体区和包围所述主体区的边缘区,所述第二金属层与所述主体区重叠,所述边缘区用于所述第一盖板的边缘结合,以在所述第一盖板和所述第二盖板之间形成封闭腔体,所述第二金属层位于所述封闭腔体内,所述第二金属层的表面形成毛细结构,所述第一金属层的材料强度大于所述第二金属层的材料强度,所述第一金属层的所述边缘区与所述第一盖板的边缘结合以形成所述裙边。
一种可能的实现方式中,所述第一金属层的材料为钛合金或不锈钢。
一种可能的实现方式中,所述中框的材料为铝合金或镁合金。
第六方面及其各种可能实现方式的具体的有益效果参阅第一方面至第五方面的具体论述,不再赘述。
附图说明
下面将对本申请实施例涉及的一些附图进行说明。
图1是本申请一种实施方式提供的中框组件的应用环境示意图;
图2是本申请一种实施方式提供的组装后的中框组件的结构示意图;
图3是本申请一种实施方式提供的均热板的结构示意图;
图4是本申请一种实施方式提供的均热板组装前的结构图;
图5是本申请一种实施方式提供的均热板组装后的结构图;
图6是本申请一种实施方式提供的密封结构的结构示意图;
图7是本申请另一种实施方式提供的密封结构的结构示意图;
图8是本申请另一种实施方式提供的密封结构的结构示意图;
图9是本申请另一种实施方式提供的密封结构的结构示意图;
图10是本申请另一种实施方式提供的密封结构的结构示意图;
图11a是本申请一种实施方式提供的连接结构的结构示意图;
图11b是本申请一种实施方式提供的均热板的示意图,显示了均热板外表面焊接连接结 构的位置;
图12是本申请一种实施方式提供的均热板的制作方法流程示意图;
图13是本申请一种实施方式提供的均热板的第二盖板的制作方法流程示意图;
图14是本申请实施例一提供的中框和连接件结合的结构示意图;
图15是本申请实施例一提供的中框组件的结构示意图;
图16是本申请实施例一提供的中框组件的立体结构示意图;
图17是本申请实施例一提供的另一种中框组件的结构示意图;
图18是本申请实施例一提供的另一种中框组件的结构示意图;
图19是本申请实施例一提供的第一限位结构和第二限位结构的示意图;
图20是本申请实施例一提供的另一种第一限位结构和第二限位结构的示意图;
图21是本申请实施例一提供的另一种第一限位结构和第二限位结构的示意图;
图22是本申请实施例一提供的连接件和第二限位结构的分布结构示意图;
图23是本申请实施例一提供的另一种连接件和第二限位结构的分布结构示意图;
图24是本申请实施例一提供的连接件的形态示意图;
图25是本申请实施例一提供的均热板的裙边与连接件的对应结构示意图;
图26是本申请实施例一提供的仅连接件固定的结构示意图;
图27是本申请实施例一提供的中框组件的制作流程图;
图28是本申请实施例二提供的中框组件的制作流程图;
图29是本申请实施例三提供的中框组件的结构示意图;
图30是本申请实施例三提供的中框与连接件结合的结构示意图;
图31是本申请实施例三提供的热扩散焊接的结构示意图;
图32是本申请实施例三提供的熔融焊接的结构示意图;
图33是本申请实施例三提供的中框组件的制作流程图;
图34是本申请实施例三提供的中框和连接件结合的流程图;
图35是本申请实施例五提供的中框和连接件的结构示意图;
图36是本申请实施例五提供的中框组件的制作流程图;
图37是本申请实施例六提供的中框组件的制作流程图;
图38是本申请实施例六提供的中框和连接件结合的结构示意图;
图39是本申请实施例六提供的另一种中框和连接件结合的结构示意图;
图40是本申请实施例六提供的另一种中框和连接件结合的结构示意图。
具体实施方式
为了更清楚地说明本申请实施例或背景技术中的技术方案,下面将对本申请实施例或背景技术中所需要使用的附图进行说明。
本申请提供一种均热板及其制作方法、中框组件及其制作方法及电子设备。电子设备可以为手机、平板电脑、笔记本、穿戴产品、智能家庭终端等电子设备。以手机为例,如图1和图2所示,图1为电子设备的立体分解示意图,图2为组装好的电子设备立体示意图,电子设备包括中框组件1、显示器件7、柔性电路板5、印刷电路板6及其他图中未示出的结构(例如:电池、主板、天线、摄像模组等)。中框组件1为电子设备内的主要承载件,中框组件1可以为用于承载电子设备内部器件的载体,中框组件1的一侧用于安装显示器件,另一 侧用于安装电池,电路板等器件。中框组件1包括中框2、连接件3和均热板4。均热板4通过连接件3安装于中框2的通孔位置,均热板4可以内嵌在通孔的内部,以使中框组件厚度足够小,使得电子设备可以实现薄型化。均热板4也可以安装在中框2的表面,也可以将均热板4的部分沉入中框的通孔内,“部分沉入”可以理解为:部分均热板4在通孔内,部分均热板4位于通孔的外部。
图1所示的实施例中,部分连接件3从中框2上分解出来,形成爆炸图的形式,还有部分连接件3连接在中框2上,也有部分连接件3被中框2遮挡未显示出来,可以理解地,均热板4的四边的位置均有设置连接件3。
具体而言,连接件3与中框2结合为一体,均热板4与连接件3焊接固定。均热板4上设有通孔40,柔性电路板5穿过所述均热板4的通孔40与印刷电路板6连接,柔性电路板5可以实现分别位于中框组件1的两侧的印刷电路板6和显示器件7之间的电连接。本申请中的均热板4与中框2通过连接件3焊接的方式可以实现中框2与均热板4之间的高强度连接,连接强度高的情况下,可以将中框组件1的厚度做到更薄,即通过连接强度弥补厚度较薄的强度问题,使电子设备整体薄形化的情况下依然可以保证结构的强度及连接可靠性。本申请提供的中框组件1中的中框2、连接件3和均热板4均为金属材质,使得中框组件1具有良好的热传导性能。
接下来,分别从三个方面分别对均热板的结构、均热板的制作方法、及中框组件的结构及制作方法进行描述。
第一方面,均热板的结构:
图3所示为本申请提供的一种实施方式中的均热板4的结构的剖面示意图,如图3所示,均热板4包括第一盖板41和第二盖板42,其中,第二盖板42为复合板材层第二盖板42包括第一金属层421和第二金属层,第二金属层可以为铜层,为了方便描述,后续均用铜层422来替代第二金属层。第一盖板41包括第三金属层411,第一金属层421包括主体区4211和包围主体区4211的边缘区4212,铜层422与主体区4211重叠(即铜层422设在主体区4211的表面,且边缘区4212未被铜层422覆盖),边缘区4212用于与第三金属层411的边缘结合,以在第一盖板41和第二盖板42之间形成封闭的腔体45,铜层422位于封闭的腔体45内,且在铜层422的表面形成毛细结构46,第三金属层411的材料的强度大于铜层422的材料强度,且第一金属层421的材料强度大于铜层422的材料强度。
本申请通过限定形成均热板4的第三金属层411的材料的强度大于铜层422的材料强度,第一金属层421的材料强度大于铜层422的材料强度,使得均热板4整体具有高强度的特性,可以理解地,只要第一金属层421的强度大于铜层422的强度,就可以使得均热板4具有较好的强度。第三金属层411的材料强度大于铜层422的材料强度,会使得均热板4的强度更佳。
本申请提供的均热板4的毛细结构46仍旧是通过在铜层上烧结形成,可以避免毛细结构在其他金属材料上成型困难、良率低的问题,实现了增强均热板的结构强度和散热性能的作用。
本申请提供的均热板4的工作原理为:均热板4的部分区域设置发热件,均热板4内的封闭的腔体45内设导热工质(例如水)。当发热件工作时会发出热量,均热板4与发热件接触的区域吸热,使得均热板4内的导热工质受热气化,即水由液态变为气体,气体在腔体内流动至均热板的其它区域,在均热板远离发热件的区域,由于温度较低,气体液化变为液体, 液体又吸附在毛细结构上,通过毛细结构传输至发热件所在的区域,这样就形成了气液两相循环,实现均温的效果。
均热板4内还设有支撑柱47,支撑柱47用于在第一盖板和第二盖板之间撑起均热板内的封闭的腔体45,支撑柱47也可以增强均热板4的强度。支撑柱47的数量可以为多个,根据均热板4的尺寸形状,具体布置支撑柱47,例如支撑柱47可以设置为3行5列的阵列分布,支撑柱47在均热板4内的分布也可以是不规则的分布,可以在均热板4的中心区域分布较多的支撑柱47,在靠裙边的区域分布较少的支撑柱47,也可以理解为,中心区域的支撑柱47的密度较大,边缘区域的支撑柱47的密度较小。支撑柱47的具体形态不限于圆柱状结构,支撑柱47也可以呈条状结构。
如图4所示,第一盖板41和第二盖板42相对层叠设置,毛细结构46层叠设置在第一盖板41和第二盖板42之间,制作过程中,在第二盖板42的铜层422上形成毛细结构46,再将第一盖板41的边缘和第二盖板42的边缘区4212结合形成均热板4。图4所示的毛细结构46在实际产品中是与铜层422结合为一体的,为了方便表达铜层422和毛细结构46的位置关系,在图4中将毛细结构46从铜层422上分离出来表达,图4的表示形态并不代表具体产品中的毛细结构的具体形态。
第三金属层411的外表面(即第三金属层411背离第二盖板42的表面)也可以设有其它的保护层。第一盖板41中的第三金属层411可以为钛合金板材层,第三金属层411可以是α型钛合金,如TA1、TA2或TA4等材料,也可以是α-β型钛合金,如TC4等钛合金,也可以是β型钛合金,如TB2等钛合金。
对于第二盖板42而言,第一金属层421具较强的强度,作为起到主要支撑作用的主体,第一金属层421的厚度大于铜层422的厚度。具体而言,铜层422的厚度小于0.15mm,铜层422的作用是用于制作毛细结构46,只要可以将铜粉或铜网放置到铜层422上烧结形成毛细结构46,因此,铜层422的厚度可以较薄,有利于减少均热板4的厚度,且铜层422的厚度较薄时,可以在腔体45内预留更大的空间以注入更多的工质(例如工质可以为水),有利于提高均热板4的散热性能,优选的实施方式中,铜层422为厚度可以为0.05mm厚度的铜金属,根据实际产品需求,也可以选择其他厚度和材质的铜层422。
第三金属层411可以为厚度0.1mm的钛合金,第一金属层421可以为厚度0.2mm的钛合金,根据实际产品需求,也可以选择其他厚度和材质的第三金属层411和第一金属层421以使均热板4具有较好的强度和热传导性能。
第一金属层412的边缘区4212与第三金属层411的边缘可以通过焊接密封连接。焊接密封可以保证第一金属层412和第三金属层411的结合强度,防止腔体内的液态工质泄露。焊接时,存在焊接强度的问题,为了使均热板4具有良好的焊接强度,第三金属层411的材料与第一金属层421可以为同种类型的金属材料,同种类型的金属材料是指第三金属层411的材料与第一金属层421的材料中含量最高的元素相同,例如,第三金属层411的材料和第一金属层421的材料可以同时为钛合金,或第三金属层411的材料和第一金属层421的材料也可以同时为不锈钢,第三金属层411的材料和第一金属层421的材料也可以为其他高强度的金属材料,同种类型的金属材料焊接时,无脆性相生成,可以具有较高的焊接强度。
一种可能的实现方式中,第三金属层411的材料与第一金属层421也可以为具有可焊性的不同类型的金属材料。可焊性是指含量最高的元素不同,低熔点金属的烧损温度小于高熔点金属的熔点,且两种金属的结合区无脆性相生成,焊接部硬度大于两种金属中最低硬度的 80%以上,具有可焊性的金属材料焊接时,也可以具有较高的结合强度。具体而言,第三金属层411的材料可以为钛合金,第一金属层421的材料为与第三金属层411具有可焊性的材料;或者第一金属层421的材料为钛合金,第三金属层411的材料为与第一金属层421具有可焊性的材料。
图5所示为本申请一种实施方式提供的均热板4的示意图,如图5所示,均热板4设有通孔40,通孔40贯穿均热板4的顶面和底面,例如,图5所示的面为均热板4的顶面、均热板4的顶面和底面可以视为第一盖板41和第二盖板42的外表面,即通孔40贯穿第一盖板41和第二盖板42。通孔40用于穿过传输线,比如,传输线可以为柔性电路板,柔性电路板穿过通孔40与印刷电路板连接。密封结构43和连接结构44。在均热板4上设置通孔40是通过在第一盖板41和第二盖板42上设开孔,开孔位于均热板4封闭腔体的位置。通过在开孔的位置设置密封结构43,实现密封结构43与第一盖板41和第二盖板42的密封连接,以保证均热板4的真空密封腔体的封闭性。
密封结构43可以有不同的结构,下面将针对六种具体的实施方式进行说明,如下:
第一实施方式:如图6所示,第一盖板包括第一板体412,第二盖板包括第二板体423,密封结构43可以包括两部分,分别为第一凸台431和第二凸台432,第一凸台431为与第一板体412一体成型的结构,第一凸台431形成在第一盖板的第一板体412的第一开孔413的外围(即第一开孔413的边缘位置),第二凸台432为与第二板体423一体成型的结构,第二凸台432形成在第二盖板的第二板体423的第二开孔424的外围(即第二开孔424的边缘位置),第一凸台431和第二凸台432对接,使得第一开孔413和第二开孔424连通形成通孔40。第一凸台431和第二凸台432可以通过焊接的方式形成密封结构43,用于封闭腔体45。
第二实施方式:如图7所示,密封结构43可以与第一盖板41的第一板体412为一体式结构,具体而言,密封结构包括第一凸台431,第一凸台431为与第一板体412一体成型的结构,第一凸台431形成在第一盖板的第一板体412的第一开孔413的边缘位置,第二板体423设第二通孔4231(此第二通孔4231可以视为第二板体423开设的第二开孔,为了与前述第一实施方式的密封结构的第二开孔区分,本实施方式中,定义此通孔为第二通孔),第一凸台431延伸至第二板体423的第二通孔4231处,且与第二板体423密封焊接(图7中为了体现第一凸台431为与第一板体412一体成型的结构,第一凸台431与第二板体423没有接触密封,实际产品中第一凸台431是与第二板体423是接触密封的),以使第一开孔413和第二通孔4231连通形成通孔40。
第三实施方式:参阅图8,密封结构43可以与第二盖板42的第二板体423为一体式结构,具体而言,密封结构包括第二凸台432,第二凸台432为与第二板体423一体成型的结构,第二凸台432形成贯穿第二盖板的第二板体423的第二开孔424,第一板体412设第一通孔4121(此第一通孔4121可以视为第一板体412开设的第一开孔,为了与前述第一实施方式的密封结构的第一开孔区分,本实施方式中,定义此通孔为第一通孔4121),第二凸台432延伸至第一板体412的第一通孔4121处,且与第一板体412密封焊接(图8中为了体现第二凸台432为与第二板体423一体成型的结构,第二凸台432与第一板体412没有接触密封,实际产品中第二凸台432与第一板体412是接触密封的),以使第二开孔424和第一通孔4121连通形成通孔40。
第四实施方式:参阅图9,密封结构43与第一盖板41和第二盖板42均为分体式结构,具体而言,第一板体412设第一通孔4121,第二板体423设第二通孔4231(本实施方式中的 第一通孔4121和第二通孔4231与第一实施方式中的第一开孔和第二开孔的意思相同,可以理解为是同样的开孔结构),密封结构43形成中空通道,密封结构43包括第一连接端433和第二连接端434,在第一通孔4121的边缘位置处,第一连接端433与第一板体412密封焊接;在第二通孔4231的边缘位置处,第二连接端434与第二板体423密封焊接,第一通孔4121和第二通孔4231通过密封结构43的中空通道相连通,以形成通孔40。也可以理解为,在第一板体412上形成第一通孔4121,在第二板体423上形成第二通孔4231后,将密封结构43的两端与第一通孔4121和第二通孔4231处的板体对接,并通过焊接密封腔体。
第五实施方式:密封结构43也可以为片状(此方案较容易理解,未图示,本实施方式中的密封结构43与第一盖板41和第二盖板42亦为分体式结构,可参阅第四实施方式的图,但本实施方式中的密封结构43可以是柔性的,而第四实施方式限定的密封结构43不限于刚性的或柔性的),本实施方式提供的片状的密封结构43的两端分别环绕第一板体412的第一通孔4121和第二板体423的第二通孔4231且共同包围封闭腔体,片状的密封结构可以具有柔性的特征,在形状上可以灵活设置,且节约空间。
第六实施方式:密封结构也可以为膏状物质(未图示),在第一板体412的第一通孔4121和第二板体423的第二通孔4231周围,将膏状金属填满第一板体412和第二板体423之间的缝隙,通过加温加压或者热扩散的方式将膏状物质固化,形成密封结构。膏状的密封结构可以通过将具有一定程度的形变的膏状的物质填充进缝隙并固化。
图6至图9所示的各种实施方式中,密封结构43所包围形成的通孔的内壁为平滑状。以第一板体412所在的平面为基准面,通孔40的延伸方向垂直于此基准面。
参阅图10,密封结构43所包围形成的通孔的内壁也可以为台阶状。通孔内壁的形状不限,只要能够穿过传输线且不影响传输线的性能即可。图10所示的实施方式中,通孔40的延伸方向X与基准面之间的夹角小于90°。通孔40的延伸方向可以根据需要设置,通孔40的延伸方向与基准面之间的夹角小于90°时,即第一通孔4121与第二通孔4231错位设置,柔性电路板穿过通孔,柔性电路板弯折的角度也小于90°,有利于保持柔性电路板的良好性能,提高柔性电路板的使用寿命。
参阅图11a和图11b,均热板4内设连接结构44,连接结构44位于封装的腔体45内,连接结构44的两端固定连接第一盖板41和第二盖板42,以避免均热板受热后第一盖板41和第二盖板42容易发生起包、翘曲等变形造成与其他器件(这里的其它器件可以提电子设备内的电子器件,可以为工作状态下发热的电子器件,也可称为发热件)干涉的问题,通常,第一盖板41和第二盖板42之间只有在边缘位置焊接固定,中间受体的区域,二者之间没有固定结构,若没有连接结构44的两端固定连接第一盖板和第二盖板,第一盖板和第二盖板在受的情况下可能会产生变形,若两个盖板变形程度不同,就会造成均热板起包或翘曲。具体而言,连接结构44可以与第一盖板41为一体式结构,第一盖板41和第二盖板对接固定后,第二盖板42的外表面焊接连接结构44与第二盖板42,也可以将连接结构与第二盖板42设计为一体式结构,在第一盖板41的外表面焊接固定第二限位结构44和第一盖板。图11b所示为均热板4外表面上用于焊接固定44形成的焊接位置。
一种具体的实施方式中,连接结构44与第二盖板42一体成型,第二盖板成型连接结构44的时候,需要避开需要设置毛细结构的区域,制作毛细结构的过程中,例如用铜网制作毛细结构,在用于制作毛细结构的铜网上开口,使得连接结构穿过开口,将铜网盖在第二盖板42的铜层422的表面,进行烧结制作。将第一盖板和第二盖板结合后,在第一盖板的外表面 进行焊接固定连接连接结构和第一盖板。
连接结构44位于腔体45的内部,连接结构44可以设置在靠近腔体中心的区域,如图11b所示,在均热板4的中间位置设置了三个连接结构,当然,连接结构的数量可以超过3个,具体的数量和位置的选择视均温板的具体的尺寸形状而定,均温板4面积较大的情况下,可以多设置几个连接结构。
均热板4封闭的腔体45内有液体工质,液体工质可以为水、酒精、丙酮等,液体工质用于实现均热板不断循环的散热过程。
第二方面,均热板的制作方法:
参阅图12,一种实施方式中的均热板的制作方法具体包括以下步骤:
S101、制作第一盖板41。
具体而言,第一盖板41包括第三金属层411。第三金属层的板材410可以通过冲压成型的方式形成第一盖板41,第三金属层的板材410冲压形成第一盖板41的过程中还形成支撑柱47,支撑柱47用于增强均热板4的强度。
第三金属层411为高强度金属制成,第三金属层411的材料的强度大于铜金属的材料强度,第三金属层411的材料的屈服强度大于等于330Mpa,例如,第三金属层的材料可以为钛合金、不锈钢等具有高强度性能的材料。具体而言,优选的实施方式中,可以采用0.1mm厚度的TA4-M钛合金板材进行冲压形成第一盖板41,根据实际产品需求,也可以选择其他厚度。第一盖板41的材质选择不限于TA4钛合金,也可以选择其他钛合金,如α型钛合金中的TA1、TA2等,也可以是α-β型钛合金中的TC4钛合金等,也可以是β型钛合金中的TB2钛合金等;同样的也可选择为不锈钢材质,如301不锈钢、304不锈钢、316不锈钢等,也可以选择其他材质的高强度材料。
S102、制作第二盖板42。
第二盖板42包括第一金属层421和铜层422,第一金属层421的材料强度大于铜层422的材料强度,第一金属层421包括主体区4211和包围主体区4211的边缘区4212,铜层422与主体区4211重叠(即铜层422设在主体区4211的表面,且边缘区4212未被铜层422覆盖)。
第二盖板42可以有不同的制作方式,具体而言,可以通过电镀、轧制、热扩散等方式将第一金属层421和铜层422复合,且第一金属层421和铜层422尺寸相同,即第一金属层421和铜层422完全重叠,蚀刻去除铜层422的边缘区域,保留中间区域的铜层422,使得铜层422仅与主体区4211重叠。
S103、制作毛细结构46。
铜层422完全覆盖第一金属层421的主体区4211且在铜层422的表面制作毛细结构46。具体而言,将铜粉或铜网放置于铜层422上,并通过烧结的方式形成毛细结构46,毛细结构46的厚度、面积、形状区域及孔隙率等可根据散热性能的要求进行调整。
S104、结合第一盖板41和第二盖板42。
将第二盖板42的边缘区4212与第三金属层411的边缘固定连接,以在第一盖板41和第二盖板42之间形成封闭腔体45。
具体而言,通过激光焊接、扩散焊接、搅拌摩擦焊接等方法焊接第二盖板42的边缘区4212和第一盖板41的边缘,同时保留注液口的位置,通过注液口将液态工质注入均热板4的腔体45内,焊接封闭注液口形成均热板4封闭的腔体。液态工质可以为水、酒精、丙酮等。
参阅图13,第二盖板42的也可以有其他的制作方式,例如,铜层422的尺寸小于第一 金属层421的尺寸时,铜层422可以通过电镀、轧制、热扩散等方式固定至第一金属层421的主体区4211形成第二盖板42(即不用蚀刻去除铜层422的边缘区域,直接将小尺寸的铜层422通过电镀、轧制、热扩散等方式覆盖固定至第一金属层421的主体区4211形成铜层422和第一金属层421的复合板材层),有利于提高材料利用率,降低成本,优化第二盖板42的制作工艺。
在制作第一盖板41和第二盖板42的过程中,可以在第一盖板的第一板体412上设第一开孔,在第二盖板42的第二板体423上设第二开孔,通过设置密封结构密封第一开孔和第二开孔位置处的第一板体412和第二板体423。具体而言,在结合第一盖板41和第二盖板42的过程中,在第一开孔和第二开孔之间处形成密封结构,所述密封结构与所述第一板体和所述第二板体连接,且共同包围所述封闭腔体,所述密封结构处,第一开孔和第二开孔连通形成贯穿所述均热板4的通孔,通孔用于供电子设备内的柔性电路板穿过,通孔及密封结构的具体结构详见第一方面(均热板结构)的描述,不再赘述。
概括而言,具体的制作过程中,密封结构的架构可以包括但不限于如下几种方案,分别为:
第一种方案,部分密封结构与第一板体为一体式的结构,部分密封结构与第二板体为一体式结构,结合第一盖板和第二盖板的过程中,将两部分密封结构对接密封固定。
第二种方案,密封结构与第一板体为一体式的结构,结合第一盖板和第二盖板的过程中,将密封结构远离第一板体的端部与第二板体的第二开孔的边缘结合且密封固定。
第三种方案,密封结构与第二板体为一体式的结构,结合第一盖板和第二盖板的过程中,将密封结构远离第二板体的端部与第一板体的第一开孔的边缘结合且密封固定。
第四种方案,密封结构为独立于所述第一板体和所述第二板体的单体结构,将密封结构的两端密封连接在第一板体的第一开孔边缘位置和第二板体的第二开孔的边缘位置。此方案下的密封结构可以为套筒状结构,也可以为柔性的片状结构,或者膏状结构。
第一金属层412的边缘区4212与第三金属层411的边缘通过焊接密封连接,焊接密封可以增强第一金属层412和第三金属层411的结合强度,防止腔体内的液态工质泄露。焊接时,存在焊接强度的问题,为了使均热板4具有良好的焊接强度,第三金属层411的材料与第一金属层421为同种类型的金属材料,同种类型的金属材料是指第三金属层411的材料与第一金属层421的材料中含量最高的元素相同,例如,第三金属层411的材料和第一金属层421的材料可以同时为钛合金,或第三金属层411的材料和第一金属层421的材料也可以同时为不锈钢,第三金属层411的材料和第一金属层421的材料也可以为其他高强度的金属材料。同种类型的金属材料焊接时,无脆性相生成,可以具有较高的焊接强度。
一种可能的实现方式中,第三金属层411的材料与第一金属层421也可以为具有可焊性的不同类型的金属材料。可焊性是指含量最高的元素不同,低熔点金属的烧损温度小于高熔点金属的熔点,且两种金属的结合区无脆性相生成,焊接部硬度大于两种金属中最低硬度的80%以上,例如,第三金属层411的材料为钛合金,第一金属层421的材料为与第三金属层411具有可焊性的材料;或者第一金属层421的材料为钛合金,第三金属层411的材料为与第一金属层421具有可焊性的材料。其他具有可焊性的不同类型的金属材料也可以用作第三金属层和第一金属层的材料。
结合第一盖板41和所述第二盖板42的过程中,还包括在封装腔体内设置连接结构,可 以避免均热板受热后第一盖板41和第二盖板42容易发生起包、翘曲等变形造成与其他器件干涉的问题。连接结构具体的结构及形成方式参阅第一方面(均热板结构)的描述,不再赘述。
通过采用铜与高强度的金属复合板材制作均热板,提高了均热板的强度,且毛细结构通过在铜层上烧结形成,可以避免毛细结构在其他金属板材上成型困难、良率低的问题,实现了增强结构强度和散热性能的作用。
第三方面,中框组件及其制作方法,以下将通过七个具体的实施例进行详细的描述,具体如下的:
实施例一
本实施例提供的中框组件的具体结构如下:
图14所示为具有连接件的中框的结构剖面图,图15所示为将均热板安装至中框后的结构剖面图,图16所示为均热板安装至中框形成的中框组件立体示意图。本申请提供一种中框组件1包括中框2、连接件3和均热板4。
参阅图14,中框2设有通孔21,连接件3与中框2结合为一体,部分连接件3外露在中框2的表面形成焊接部,焊接部位于所述通孔的内壁或者所述中框的用于承载电子设备内的器件的表面,用于焊接均热板4。可以理解为焊接部位于中框2的表面,这里所说的中框2的表面是指:形成通孔21的部分内壁或者中框2的用于承载电子设备内的器件的表面。电子设备内的器件可以为电子器件,具体而言,可以为电子设备在工作状态下,其内部的发热的电子器件,也可以称为发热件,例如:电池、主板(主板上会设置发热芯片等器件)。
本申请一种可能的实施方式中,均热板4设有供柔性线路板穿过的通孔40,中框2上设有用于安装均热板4的通孔21,为了区别理解,可以将中框2上的通孔21称为第一通孔,将均热板4上的通孔40称为第二通孔。
其它实施方式中,本申请提供的电子设备中的中框2也可以不设置通孔,直接将均热板4安装在中框2上。例如,在中框2上需要安装均热板的位置保留部分厚度作为承载区,承载区的厚度可以为非常小,具体可以小于均热板4的厚度,承载区可以作为均热板的承载,保证均热板位置的支撑强度,而且承载区作为均热板的定位面,使得安装均热板的工艺更简单。
参阅图15和图16,均热板4包括均热板主体48和包围均热板主体48的裙边49(具体而言,第一金属层第三金属层裙边49为均热板4的第一金属层的边缘区与第三金属层的边缘结合形成的),均热板4容置在通孔21位置处,裙边49与连接件3焊接,以使均热板4与中框2组合,共同作为电子设备内的承载件。
连接件3与裙边49为同种类型的金属材料,同种类型的金属材料是指连接件3的材料与裙边49的材料中含量最高的元素相同,同种类型的金属材料焊接时,无脆性相生成,可以具有较高的焊接强度,或者连接件3与裙边49为具有可焊性的不同类型的金属材料,可焊性是指含量最高的元素不同,低熔点金属的烧损温度小于高熔点金属的熔点,且两种金属的结合区无脆性相生成,焊接部硬度大于两种金属中最低硬度的80%以上(其中,中框组件1中的均热板4的结构参见前述第一方面中提供的均热板4的具体结构,这里不再赘述)。
本实施例中,中框2的材质采用6013-T6(峰值时效态)铝合金,连接件3的材质采用TA4-M(退火态)钛合金,均热板4的裙边49的材质采用TA4-M钛合金。中框2、连接件3和均热板4的材质可以根据产品需求选择,例如,中框2、连接件3和均热板4的材质组合 如下表所示:
材质组合组合1组合2组合3组合4组合5组合6组合7
中框铝合金镁合金铝合金铝合金铝合金铝合金不锈钢
均热板钛合金钛合金不锈钢不锈钢铜合金铜合金钛合金
连接件钛合金钛合金不锈钢铜合金铜合金不锈钢钛合金
材质组合组合8组合9组合10组合11组合12组合13组合14
中框不锈钢镁合金镁合金镁合金镁合金钛合金钛合金
均热板铜合金不锈钢不锈钢铜合金铜合金铜合金不锈钢
连接件铜合金铜合金不锈钢铜合金不锈钢铜合金不锈钢
中框2的通孔21可以具有不同的结构,例如,如图14所示,通孔21可以为台阶状通孔,即形成通孔的孔壁为台阶状,通孔21的内壁包括台阶面211,连接件3内嵌于中框2,且连接件3局部外露在台阶面211(台阶面211为形成通孔21的部分内壁)上,以使连接件3与均热板4接触。如图15所示,均热板4的裙边49搭接在台阶面211上并焊接至台阶面211上的局部连接件3的位置,换言之,焊接均热板4的裙边49与连接件3对应的局部位置以固定连接件3和均热板4(即通过连接件3及焊接中框2和均热板4)。连接件3与中框2的结合可以采用嵌入的方式,嵌入方向可以沿垂直于中框2所在的平面的方向,也可以与中框2所在的平面的方向呈一定角度嵌入,连接件3的数量为多个时,多个连接件3嵌入的方向可以相同也可以不同,可以根据需要设置。
另一种可能的实现方式中,参阅图17,通孔21也可以为直形通孔,通孔21的内壁朝向通孔的内部,均热板4的裙边49相较均热板主体48弯折,连接件3内嵌于中框2,连接件3从中框2的外边缘的位置延伸至中框2朝向通孔21的内壁。均热板4的外观特征不限于平面状,也可以是曲面状、异型状,具体根据中框的外观特征设置。
图15和图17所示的实施方式中,均热板4的裙边49可以位于通孔21内。其它实施方式中,参阅图18,裙边49也可以位于中框2用于承载电子设备内的器件的表面,具体而言,中框2设有搭接面24,搭接面24为中框2用于承载电子设备内的器件的表面,裙边49搭接在搭接面24上并焊接至搭接面24上的部分连接件3的位置。
参阅图19,连接件3和中框2的结合处设有第一限位结构31,以实现第一方向X1上的限位,连接件3和裙边49通过焊接形成第二限位结构32,以实现第二方向X2上的限位,第一方向X1和第二方向X2为相反的方向。本申请通过结合中框2和连接件3实现中框组件1中的中框、连接件及均热板的结合强度的提升,为了促进电子设备薄型化的设计,中框2的尺寸受限,为了保证连接件3的结构稳固性,本申请通过连接件3与中框结合处形成第一限位结构31及连接件3与均热板4的裙边49之间形成第二限位结构32,第一限位结构31和第二限位结构32实现了连接件3的第一方向X1和第二方向X2的双向固定,以保证连接件3的结构稳固性,防止连接件3脱落。
参阅图19,本实施方式中,连接件3可以内嵌至中框2内部,连接件3包括相对的第一端面33和第二端面34及连接在第一端面33和第二端面34之间的侧面38,侧面38位于中框2的内部,第一端面33和第二端面34外露在中框的表面。其它实施方式中,第一端面33也可以不外露在中框表面,例如通过对中框进行塑料注塑封盖,可以将第一端面33遮盖,会导致第一端面33不会外露。
连接件3内嵌至中框2后形成的第一限位结构31和第二限位结构32有不同的实现方式, 例如:
如图19所示,第一限位结构31和第二限位结构32分别位于连接件3的第一端面33和第二端面34处,具体而言,第一限位结构31位于连接件3的第一端面33处,第二限位结构32位于连接件3的第二端面34处,第一限位结构31包括形成在连接件3的第一端面33处的限位脚311和形成在中框2上的限位台312,限位脚311位于限位台312远离第二限位结构32的一侧,且搭接固定在限位台312上,第二限位结构32阻止连接件3沿着第二方向X2脱落,实现第二方向X2上的限位,限位台312阻止连接件3沿着第一方向X1脱落,实现第一方向X1上的限位。
如图20所示,第一限位结构31形成于侧面38,第二限位结构32位于连接件3的第二端面34处,具体而言,第一限位结构31包括形成在连接件3的侧面38上的凹陷部35和形成在中框2上的凸出部36,凸出部36与凹陷部35配合,使得连接件3卡接在中框2的内部,防止连接件3沿着第一方向X1脱落,实现第一方向X1上的限位,第二限位结构32阻止连接件3沿着第二方向X2脱落,实现第二方向X2上的限位。
如图21所示,第一限位结构31和第二限位结构32均位于连接件3的第二端面34处,具体而言,侧面38和第二端面34之间通过限位面37连接,限位面37为相对第二端面34倾斜延伸的斜面,第二端面34用于焊接裙边49,第一限位结构31包括限位面37及与限位面37配合的中框2上的限位部22,限位部22固定连接在裙边49和限位面37之间。
连接件3上对应设有第二限位结构32,连接件3和均热板4之间的第二限位结构32的数量为多个,连接件3与第二限位结构32一一对应(参阅图22,图22中圆圈的大小不代表连接件3和第二限位结构的实际大小,只是为了体现连接件3和第二限位结构32的对应关系),或者,连接件3呈长条形,每个连接件3对应至少两个第二限位结构32(参阅图23)。
一种可能的实现方式中,连接件3的形状不限,连接件3可以为点状分布于中框2上,也可以为条状分布于中框2上(参阅图22和图23),换言之,连接件3的断面的形状不限,连接件3的断面可以为圆形、长条形、方形、或者不规则的异形形状等(参阅图24),具体可以根据需要设计。
图25所示为均热板4和中框21的立体分解示意图,如图25所示,均热板4可以呈方形或多边形架构,通孔21的形状与均热板4的形状匹配,均热板4的每条边处的裙边均对应设置至少一个连接件3。
本申请采用连接件3与设置焊接架构32的方式实现了中框2和均热板4的固定连接,可以增强中框2和均热板4之间的结合强度并实现中框2和均热板4的超薄连接。具体而言,如果采用均热板4直接焊接在铝合金中框2上,铝合金选择的为沉淀强化型,焊接后,熔池区域和热影响区域强度均会大幅度下降,且中框2和均热板4为两种不同的材质,两种不同的材质进行焊接时,易产生脆性相,同样不利于结合强度的提升,因此,相较于直接焊接,本申请通过连接件3过渡,实现同种金属之间的焊接,强度上无损失;如果将均热板4直接通过连接件3固定在中框2上(参阅图26),靠连接件3和中框2之间的嵌合进行固定,需要中框2结合处的厚度W1大于0.5mm以上才能保证结合力,厚度过薄,连接件3容易从中框2上脱落导致连接失效,因此,相比较于直接通过连接件和中框之间的嵌合,本申请不只靠连接件3和中框2之间的嵌合固定,对中框2结合区域的厚度没有限制。
本实施例提供的中框组件1的制作方法,如图27所示,中框组件1具体的制作方法如下:
T101、制作中框2,包括结合中框坯料23和连接件3。
提供用于制作中框2的中框坯料23,在中框坯料23内嵌入连接件3。连接件3嵌入中框坯料23的工序可以根据需求选择,例如,可以在中框坯料23的设计位置进行开孔后将连接件3铆入,或者以螺纹拧入的方式嵌入中框坯料23,也可以选择其他过程嵌入,如待纳米注塑前或纳米注塑后加工内腔时的某一制程。
T102、对中框坯料23进行机加工形成中框2,并进行阳极氧化处理。
对嵌入连接件3的中框坯料23进行机加工,形成具有通孔21的中框2,且使得部分连接件3外露在中框2的表面。具体而言,对中框坯料23进行机加工的步骤包括计算机数字控制、金属与塑胶以纳米技术结合、计算机数字控制、外观面机械打磨和抛光等。
形成具有通孔21的中框2之后,对中框2进行阳极氧化处理,阳极氧化处理可以在中框的表面形成坚硬的氧化膜,以增强中框的强度并保护中框。为了避免连接件3被氧化,连接件3可以采用钛合金等材质,钛合金具有优良的耐腐蚀性,在对中框2进行阳极氧化处理的过程中,钛合金材质的连接件3不发生腐蚀。通过机加工及阳极氧化处理获得所需结构和外观的中框2。
图27中显示的是剖面图,图中显示的结合在中框内的连接件3的数量为两个,具体在制作过程中,需要根据均热板的尺寸、形状,设置连接件的数量和具体的位置。图27中在通孔21的两侧各有一个连接件3,这两个连接件3的结构可以是相同的,连接件与均热板之间的连接关系也是相同的,因此图27中只针对右侧的连接件与均热板之间的连接结构进行了标号。
T103、提供均热板4,安装均热板4至中框2。
均热板4具体的制作方法参见前述第二方面中均热板4的制作方法,这里不再赘述,均热板4包括均热板主体48和包围均热板主体48的裙边49。裙边49与连接件3为同种类型的金属材料,同种类型的金属材料是指裙边49的材料与连接件3的材料中含量最高的元素相同,同种类型的金属材料焊接时,无脆性相生成,可以具有较高的焊接强度,或者裙边49与连接件3为具有可焊性的不同类型的金属材料,可焊性是指含量最高的元素不同,低熔点金属的烧损温度小于高熔点金属的熔点,且两种金属的结合区无脆性相生成,焊接部硬度大于两种金属中最低硬度的80%以上。
将均热板4放置在通孔21内,并焊接裙边49和连接件3。具体而言,焊接的过程中形成第二限位结构32,可以在每个连接件3上均形成一个第二限位结构32,每个连接件3上也可以对应至少形成两个第二限位结构32。焊接方式可以为熔融类焊接、压焊类焊接或者是钎焊类焊接(TA4钛合金为固溶强化型材料,即使采用熔融焊,仍能获得较高的材料强度)。
实施例二
本实施例提供一种中框组件1,实施例二的中框组件1的具体结构与实施例一中的中框组件1的结构相同,这里不再赘述。实施例二与实施例一的不同之处在于中框组件1的制作方法的不同(实施例二中的中框、连接件和均热板的材质参见实施例一),具体如下:
本实施例提供一种中框组件1的制作方法,如图28所示,中框组件1具体的制作方法如下:
T101、制作中框2。
提供用于制作中框2的中框坯料23,对中框坯料23进行机加工,形成具有通孔21的中框2,对中框坯料23进行机加工的步骤包括计算机数字控制、金属与塑胶以纳米技术结合、计算机数字控制、外观面机械打磨和抛光等。对具有通孔21的中框2进行阳极氧化处理,阳极氧化处理可以在中框的表面形成坚硬的氧化膜,以增强中框的强度并保护中框。通过机加 工及阳极氧化处理获得所需结构和外观的中框2。
T102、结合连接件3和中框2。
将与中框2的材料不同的连接件3与中框2结合,中框2设有通孔21,连接件3与中框2可以通过嵌入的方式结合为一体。具体而言,将连接件3嵌入阳极氧化处理后的中框2,且使得部分连接件3外露在中框2的表面。阳极氧化处理后再将连接件3嵌入中框2,可以使连接件3的材质不受限制,即阳极氧化处理后再将连接件3嵌入中框2,连接件3不会经过阳极氧化的处理,不用考虑连接件3阳极氧化处理的腐蚀性问题,连接件3的材质可以为不锈钢等。
连接件3嵌入中框2的工序可以根据需求选择,例如,可以在中框2的设计位置进行开孔后将连接件3铆入,或者以螺纹拧入的方式嵌入中框2,也可以选择其他过程嵌入,如待纳米注塑前或纳米注塑后加工内腔时的某一制程。
T103、提供均热板4,安装均热板4至中框2。
均热板4的安装方法参见实施例一,这里不再赘述。
实施例三
本实施例提供一种中框组件1,实施例三与实施例一中的中框组件结构的不同之处在于连接件3与均热板4的结合方式不同,具体而言,实施例三中连接件3是通过热扩散的方式结合在中框2的表面,而不是内嵌于中框2,实施例三的中框组件1的具体结构如下(其中,实施例三的中框2的结构参见实施例一的中框2的结构,均热板4的结构参见前述第一方面中提供的均热板4的具体结构,这里不再赘述,本实施例中的中框、连接件和均热板的材质参见实施例一):
如图29和图30所示,中框2朝向通孔21的内侧壁包括至少两个安装面25,连接件3包括至少两个连接面30,以使连接件3的至少两个连接面30分别与至少两个安装面25结合。具体而言,连接件3的至少两个连接面30与中框2的至少两个安装面25可以采用热扩散的方式结合。连接件3夹设在中框2和裙边49之间,以使第一限位结构31和第二限位结构32结合实现第一方向X1和第二方向上X2的限位,具体而言,第一限位结构31阻挡连接件3沿第一方向X1脱落,实现第一方向X1上的限位,第二限位结构32阻挡连接件3沿第二方向X2脱落,实现第二方向上的限位。
连接件3可以有不同的结构,例如,连接件3可以为“L”形,将均热板4的裙边49搭接在“L”形的连接件3上,连接件3也可以为长条状或不规则的异形状(参阅图30),只要有至少两个连接面与中框2结合即可。
一种可能的实现方式中,连接件3的至少两个连接面30与中框2的至少两个安装面25可以采用热扩散的方式结合,相比于普通的熔融焊,连接件3和中框2的结合处有明显的边界线(通过腐蚀等方式可以使结合处的边界线清晰显现),且无热影响区,复合区域A1的尺寸小于等于0.1mm(参阅图31),焊接后,连接件3和中框2之间具有良好的导热性。熔融焊中,焊接的金属B1和金属B2的焊接熔融区域B3的尺寸通常大于0.1mm,且焊接后形成金属B1的热影响区B11和金属B2的热影响区B21,B11≥0.1mm,B21≥0.1mm,不利于相结合的金属B1和金属B2之间的热传导(参阅图32)。
本实施例提供一种中框组件1的制作方法,如图33和图34所示,中框组件1具体的制作方法如下:
T101、制作中框2,包括形成固定有连接件3的中框,连接件3通过热扩散的方式与中 框2结合为一体,具体包括以下步骤:
T1011、制作复合坯料。
采用铝合金挤出工艺,获得所需尺寸规格的6013-T4(自然时效态)铝合金坯料,对6013-T4(自然时效态)铝合金坯料进行双面研磨和表面精磨后得到备用的中框坯料23;对特定尺寸规格的TA4-M(退火态)钛合金,进行表面精磨后得到备用的连接件坯料310;通过热扩散将中框坯料23和连接件坯料310进行复合得到复合坯料320,此时,中框坯料23(即6013-T4(自然时效态)铝合金)由T4态变为O态(退火态),连接件坯料310(即TA4-M(退火态)钛合金)TA4钛合金仍保持M态。
T1012、对复合坯料进行冲锻压处理。
通过冲锻、计算机数字控制和双面研磨等对复合坯料进行加工,获得所需规格的复合坯料320。冲锻压处理的过程中,从连接件坯料310的内部区域进行冲锻压,冲锻压处理后仍然有部分连接件坯料310保留在中框坯料23的顶面,被冲锻压的部分连接件坯料310嵌入中框坯料23内。
T1013、对复合坯料进行机加工处理。
对冲锻压之后的复合坯料320进行机加工(去掉不需要的部分坯料),进行机加工的步骤包括计算机数字控制、金属与塑胶以纳米技术结合、计算机数字控制、外观面机械打磨和抛光等,获得所需形状和外观的设置有连接件的中框2,且使得部分连接件3外露在中框的表面。对机加工后的材料进行阳极氧化处理,钛合金材质的连接件3具有优良的耐蚀性,在铝合金材质的中框2进行阳极氧化时不发生腐蚀。
T1014、对中框进行热处理。
通过进行固溶和时效处理,使得6013(自然时效态)铝合金(即中框坯料23)转变为T6态(峰值时效态);TA4-M(退火态)钛合金(即连接件坯料310)仍保持为M态。
可选择的,对复合坯料也可以先进行步骤T1014中的热处理,再进行步骤T1013的机加工。
T102、提供均热板4。
提供的均热板4具体的制作方法参见前述第二方面中均热板4的制作方法,这里不再赘述。
T103、安装均热板4至中框2。
均热板4的安装参见实施例一,这里不再赘述。
实施例四
本实施例提供一种中框组件1,本实施例与实施例三的不同之处在于,原材料可以先进行大片的复合,具体而言,本实施例可以采用热叠轧的方式将至少两个连接件坯料与大尺寸的中框坯料结合制得复合坯料,裁切复合坯料形成多个小尺寸的中框的复合坯料。
本实施例是在对于阳极外观要求不高的情况下,将原材料进行大片复合,采用裁切工艺制备,加工效率高,成本低。
实施例五
本实施例提供一种中框组件1,实施例五与实施例三的中框组件结构的不同之处在于中框2及连接件3的结构不同,具体而言,实施例三中的中框为一体式结构,连接件也为一体式结构,本实施例的中框为分体式结构,连接件也为分体式结构,本实施例中框组件1的具体结构如下(其中,均热板4的结构参见前述第一方面中提供的均热板4的具体结构,这里 不再赘述,实施例五的中框、连接件和均热板的材质参见实施例一):
如图35所示,中框2包括四个子框件26,连接件3的数量为四个,连接件3呈条状,四个连接件3分别对应结合在四个子框件26上,四个结合有连接件3的子框件26拼接成中框2。连接件3与中框2可以采用热扩散或者热叠轧的方式结合。
一种可能的实现方式中,子框件26的数量至少为两个,例如,子框件26的数量可以为两个、三个、五个等,分体式的子框件可提高材料利用率,降低材料成本。
一种可能的实现方式中,结合有连接件的中框设置有天线缝370,用于安装天线。
实施例五与实施例三的中框组件1的整体结构是相同的,只是中框和连接件形成的方式不同,这里不再赘述。
本实施例提供一种中框组件1的制作方法,如图36所示,中框组件1具体的制作方法如下:
T101、制作复合坯料。
采用铝合金挤出工艺,获得所需尺寸规格的6013-T4(自然时效态)铝合金坯料,对6013-T4(自然时效态)铝合金坯料进行双面研磨和表面精磨后得到备用的中框坯料23,对特定尺寸规格的TA4-M(退火态)钛合金,进行表面精磨后得到备用的连接件坯料310,通过热扩散或热叠轧的方式将中框坯料23和连接件坯料310进行复合得到复合坯料,此时,中框坯料23(即6013-T4(自然时效态)铝合金)由T4态变为O态(退火态),连接件坯料310(即TA4-M(退火态)钛合金)TA4钛合金仍保持M态。对复合坯料进行固溶和时效处理,使得6013(自然时效态)铝合金(即中框坯料23)转变为T6态(峰值时效态),TA4-M(退火态)钛合金(即连接件坯料310)仍保持为M态。裁切大尺寸的复合坯料形成四个小尺寸的复合坯料320。
对裁切后的复合坯料320进行机加工,进行机加工的步骤包括计算机数字控制、金属与塑胶以纳米技术结合、计算机数字控制、外观面机械打磨和抛光等,以获得所需尺寸规格的四个复合坯料320。
T102、通过塑胶注塑或者焊接的方式拼接四个复合坯料320形成中框2的框体,并对拼接后的框体进行计算机数字控制、金属与塑胶以纳米技术结合、计算机数字控制、外观面机械打磨和抛光等机加工处理以对中框2的尺寸进行精确的调整,并进行阳极化处理,钛合金材质的连接件3具有优良的耐蚀性,在铝合金材质的中框2进行阳极氧化时不发生腐蚀。
T103、提供均热板4,安装均热板4至中框2。
其中,图36中,T102步骤后的中框2的示意图为中框2的俯视平面图,T103步骤后安装有均热板4的中框2的示意图为剖面图。
均热板4的安装参见实施例一,这里不再赘述。
相比于实施例三和实施例四,实施例五采用分体式的复合坯料拼接的方式结合形成中框,可以提高材料利用率,降低材料成本。
实施例六
本实施例提供一种中框组件1,实施例六的中框组件1与实施例五的中框组件的结构是相同的,这里不再赘述(其中,本实施例中的中框、连接件和均热板的材质参见实施例一)。实施例六与实施例五的不同之处在于,实施例五首先采用热扩散或热叠轧的方式形成复合坯料,然后裁切形成多个小尺寸的复合坯料,并拼接多个复合坯料形成中框,实施例六首先拼接分体式的中框坯料形成中框框架或者采用一体式的中框,然后将分体式的至少两个连接件 通过热扩散或热叠轧的方式结合至拼接完成的中框上,具体而言,本实施例提供一种中框组件1的制作方法,如图37和图38所示,中框组件1具体的制作方法如下:
T101、制作复合坯料。
采用铝合金挤出工艺,获得所需尺寸规格的6013-T4(自然时效态)铝合金坯料,对6013-T4(自然时效态)铝合金坯料进行双面研磨和表面精磨后得到备用的中框坯料,将中框坯料机加工形成中框2,对特定尺寸规格的TA4-M(退火态)钛合金,进行表面精磨后得到备用的连接件坯料,裁切大尺寸的连接件坯料形成四个小尺寸的连接件坯料(即第一连接件坯料330和第二连接件坯料340,第三连接件坯料350、第四连接件坯料360),通过热扩散或热叠轧的方式将中框2和第一连接件坯料330、第二连接件坯料340,第三连接件坯料350及第四连接件360坯料进行拼接,对拼接后的材料进行固溶和时效处理,此时,6013-T4(自然时效态)铝合金(即中框坯料23)转变为T6态(峰值时效态),TA4-M(退火态)钛合金(即连接件坯料310)仍保持为M态。
对固溶和时效处理后的中框2进行机加工,进行机加工的步骤包括计算机数字控制、金属与塑胶以纳米技术结合、计算机数字控制、外观面机械打磨和抛光等,以形成所需尺寸和外观的中框2。对机加工后的中框进行阳极氧化处理,钛合金材质的连接件具有耐腐蚀性,在阳极氧化的过程中不会发生腐蚀。
T102、提供均热板4,安装均热板4至中框2。
其中,图37中,T101步骤后的中框2的示意图为中框2的俯视平面图,T102步骤后安装有均热板4的中框2的示意图为剖面图。
均热板4的安装参见实施例一,这里不再赘述。
实施例六中形成中框的框体,然后将条状的连接件通过热扩散或热叠轧的方式与中框结合的方式,相比于实施例五,实施例六中天线缝370的位置和数量可以根据需要设置(参阅图38、图39和图40),天线缝370可以为两条、三条、四条等,不受拼接缝位置的限制。
实施例七
本实施例提供一种中框组件,实施例七的中框组件可以为实施例一至实施例六中任一实施例中的中框组件(即实施例七的中框组件的结构可以与实施例一至实施例六中任一实施例中的中框组件的结构相同)。
实施例七与实施例一至实施例六的不同之处在于实施例七提供一种中框组件的制作方法,在对中框进行加工的过程中,可以通过喷涂、真空不导电镀膜、物理气相沉积或化学气相沉积的方式替代实施例一至实施例六中的阳极氧化处理,以在中框的表面形成保护膜用于保护中框。由于不需要经过阳极氧化处理,连接件可以为不锈钢、铜合金等多种材质。
以上所述是本申请的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本申请原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也视为本申请的保护范围。

Claims (48)

  1. 一种均热板,其特征在于,所述均热板包括第一盖板和第二盖板,所述第二盖板包括第一金属层和第二金属层,所述第一金属层包括主体区和包围所述主体区的边缘区,所述第二金属层与所述主体区重叠,所述边缘区用于与所述第一盖板的边缘结合,以在所述第一盖板和所述第二盖板之间形成封闭腔体,所述第二金属层位于所述封闭腔体内,所述第二金属层的表面形成毛细结构,且所述第一金属层的材料强度大于所述第二金属层的材料强度。
  2. 如权利要求1所述的均热板,其特征在于,所述边缘区与所述第一盖板的边缘通过焊接密封连接。
  3. 如权利要求2所述的均热板,其特征在于,所述第一盖板包括第三金属层,所述第三金属层的材料与所述第一金属层的材料为同种类型的金属材料;或者所述第三金属层的材料与所述第一金属层的材料为具有可焊性的不同类型的金属材料。
  4. 如权利要求3所述的均热板,其特征在于,所述第一金属层的材料为钛合金或不锈钢。
  5. 如权利要求1所述的均热板,其特征在于,所述第二金属层的材料包括铜。
  6. 如权利要求1所述的均热板,其特征在于,所述第一盖板包括第一板体,所述第二盖板包括第二板体,所述第一板体和所述第二板体相对间隔设置,所述第一板体设第一开孔,所述第二板体设第二开孔,所述均热板还包括密封结构,所述密封结构在所述第一开孔和所述第二开孔处与所述第一板体和所述第二板体密封连接,所述第一开孔和所述第二开孔连通形成所述均热板的通孔。
  7. 如权利要求6所述的均热板,其特征在于,所述密封结构包括第一凸台和第二凸台,所述第一凸台为与所述第一板体一体成型的结构,所述第一凸台形成在所述第一开孔的边缘位置,所述第二凸台为与所述第二板体一体成型的结构,所述第二凸台形成在所述第二开孔的边缘位置,所述第一凸台与所述第二凸台对接,所述这第一开孔和所述第二开孔连通形成所述均热板的所述通孔。
  8. 如权利要求6所述的均热板,其特征在于,所述密封结构为独立于所述第一板体和所述第二板体的单体结构,所述密封结构围设形成中空通道,所述密封结构包括第一连接端和第二连接端;在所述第一开孔的边缘位置处,所述第一连接端与所述第一板体密封焊接;在所述第二开孔的边缘位置处,所述第二连接端与所述第二板体密封焊接,所述密封结构的中空通道连通在所述第一开孔和所述第二开孔之间,以形成所述均热板的所述通孔。
  9. 如权利要求6-8任一项所述的均热板,其特征在于,以所述第一板体所在的平面为基准面;所述通孔的延伸方向垂直于所述基准面,或者,所述均热板的所述通孔的延伸方向与所述基准面之间的夹角小于90度。
  10. 如权利要求1所述的均热板,其特征在于,所述封闭腔体内设有连接结构,所述连接结构的两端固定连接所述第一盖板和所述第二盖板。
  11. 一种均热板的制作方法,其特征在于,包括:
    制作第一盖板;
    制作第二盖板,所述第二盖板包括第一金属层和第二金属层,所述第一金属层包括主体区和包围所述主体区的边缘区,所述第二金属层与所述主体区重叠,所述第一盖板的材料的强度大于所述第二金属层的材料强度,且所述第一金属层的材料强度亦大于所述第二金属层的材料强度;
    在所述第二盖板的所述第二金属层的表面制作毛细结构;
    结合所述第一盖板和所述第二盖板,将所述边缘区与所述第一盖板的边缘固定连接,以在所述第一盖板和所述第二盖板之间形成封闭腔体。
  12. 如权利要求11所述的均热板的制作方法,其特征在于,所述第一盖板的材料与所述第一金属层的材料为同种类型的金属材料;或者,所述第一盖板的材料与所述第一金属层的材料为具有可焊性的不同类型的金属材料。
  13. 如权利要求12所述的均热板的制作方法,其特征在于,所述第一金属层的材料为钛合金或不锈钢。
  14. 如权利要求11所述的均热板的制作方法,其特征在于,所述第二金属层的材料包括铜。
  15. 一种中框组件,其特征在于,所述中框组件包括中框、连接件和均热板,所述中框设有通孔,所述连接件与所述中框固定连接,部分所述连接件外露形成焊接部;所述均热板包括均热板主体和包围所述均热板主体的裙边,所述均热板容置在所述中框的所述通孔位置,所述裙边与所述焊接部焊接。
  16. 如权利要求15所述的中框组件,其特征在于,所述连接件与所述裙边为同种类型的金属材料,或者所述连接件与所述裙边为具有可焊性的不同类型的金属材料。
  17. 如权利要求16所述的中框组件,其特征在于,所述焊接部位于所述中框的所述通孔的内壁;或者,所述焊接部位于所述中框的用于承载终端设备内的器件的表面。
  18. 如权利要求15所述的中框组件,其特征在于,所述均热板为如权利要求1-10任一项所述的均热板,所述第一金属层的所述边缘区与所述第一盖板的边缘结合以形成所述裙边。
  19. 如权利要求15所述的中框组件,其特征在于,所述连接件与所述中框的结合处形成第一限位结构,以实现第一方向上的限位;所述连接件与所述裙边通过焊接形成第二限位结 构,以实现第二方向上的限位,所述第一方向和所述第二方向为相反的方向。
  20. 如权利要求19所述的中框组件,其特征在于,所述连接件内嵌至所述中框内部,所述连接件包括相对的第一端面和第二端面及连接在所述第一端面和所述第二端面之间的侧面,所述侧面位于所述中框的内部,所述第二端面外露在所述中框的表面形成所述焊接部。
  21. 如权利要求20所述的中框组件,其特征在于,所述第一限位结构位于所述连接件的所述第一端面,所述第二限位结构位于所述连接件的所述第二端面,所述第一限位结构包括形成在所述连接件的所述第一端面的限位脚和形成在所述中框上的限位台,所述限位脚位于所述限位台远离所述第二限位结构的一侧,且搭接固定在所述限位台上。
  22. 如权利要求20所述的中框组件,其特征在于,所述第一限位结构形成于所述侧面,所述第二限位结构位于所述连接件的所述第二端面,所述第一限位结构包括形成在所述连接件的所述侧面上的凹陷部和形成在所述中框上的凸出部,所述凸出部与所述凹陷部配合。
  23. 如权利要求20所述的中框组件,其特征在于,所述第一限位结构和所述第二限位结构位于所述第二端面位置处,所述侧面和所述第二端面之间通过限位面连接,所述限位面为相对所述第二端面倾斜延伸的斜面,所述第二端面用于焊接所述裙边,所述第一限位结构包括所述限位面及与所述限位面配合的所述中框上的限位部,所述限位部固定连接在所述裙边和所述限位面之间。
  24. 如权利要求19所述的中框组件,其特征在于,所述连接件通过热扩散或热叠轧的方式结合在所述中框的表面,所述连接件夹设在所述中框和所述裙边之间,以使所述第一限位结构和所述第二限位结构结合实现第一方向和第二方向上的限位。
  25. 如权利要求15所述的中框组件,其特征在于,所述中框的所述通孔为台阶形通孔,所述中框的所述通孔的所述内壁包括台阶面,所述连接件内嵌于所述中框,且所述焊接部位于所述台阶面上,所述裙边搭接在所述台阶面。
  26. 如权利要求15所述的中框组件,其特征在于,所述中框的所述通孔为直形通孔,所述中框的所述通孔的所述内壁朝向所述中框的所述通孔的内部,所述焊接部位于所述中框的所述通孔的内壁,所述裙边相较所述均热板主体弯折,所述连接件内嵌于所述中框,所述连接件从所述中框的外边缘的位置延伸至所述中框的所述通孔的所述内壁。
  27. 如权利要求15所述的中框组件,其特征在于,所述中框设有搭接面,所述搭接面为所述中框用于承载电子设备内的器件的表面,所述焊接部位于所述搭接面,所述裙边搭接在所述搭接面。
  28. 如权利要求15所述的中框组件,其特征在于,所述连接件和所述均热板之间的所述第二限位结构的数量为多个,所述连接件与所述第二限位结构一一对应;或者,所述连接件 和所述均热板之间的所述第二限位结构的数量为多个,所述连接件呈长条形,每个所述连接件对应至少两个所述第二限位结构。
  29. 一种中框组件的制作方法,其特征在于,包括:
    制作中框,过程中将与所述中框的材料不同的连接件与所述中框固定连接,所述中框设有通孔,部分所述连接件外露形成焊接部;
    提供均热板,所述均热板包括均热板主体和包围所述均热板主体的裙边;
    安装均热板至所述中框,将所述均热板放置在所述中框的所述通孔处,并焊接所述裙边和所述连接件的所述焊接部。
  30. 如权利要求29所述的中框组件的制作方法,其特征在于,所述连接件与所述裙边为同种类型的金属材料,或者所述连接件与所述裙边为具有可焊性的不同类型的金属材料。
  31. 如权利要求30所述的中框组件的制作方法,其特征在于,制作所述中框的过程中,通过嵌入的方式将连接件与中框固定连接。
  32. 如权利要求31所述的中框组件的制作方法,其特征在于,制作所述中框的步骤包括:提供用于制作所述中框的坯料;在所述坯料内嵌入所述连接件;对所述坯料进行机加工,形成具有通孔的所述中框,部分连接件外露在所述中框的表面。
  33. 如权利要求32所述的中框组件的制作方法,其特征在于,形成具有所述通孔的所述中框后,进行阳极氧化处理,所述连接件的材料为钛合金。
  34. 如权利要求31所述的中框组件的制作方法,其特征在于,制作所述中框的步骤包括:提供用于制作所述中框的坯料;对所述坯料进行机加工,形成具有通孔的所述中框;将所述连接件嵌入所述中框,部分连接件外露在所述中框的表面。
  35. 如权利要求34所述的中框组件的制作方法,其特征在于,形成具有所述通孔的所述中框后,对所述中框进行阳极氧化处理,阳极氧化处理后再嵌入所述连接件。
  36. 如权利要求31-35任一项所述的中框组件的制作方法,其特征在于,所述连接件通过铆接、螺纹拧入的方式嵌入所述中框。
  37. 如权利要求30所述的中框组件的制作方法,其特征在于,所述连接件通过热扩散或热叠轧的方式与所述中框结合为一体。
  38. 如权利要求37所述的中框组件的制作方法,其特征在于,制作所述中框的步骤包括:制备复合坏料,通过热扩散将材料不同的中框坏料和连接件坯料进行结合;对复合坯料进行热处理,通过进行固溶和时效处理,使得所述中框坏料和所述连接件坯料结合;对热处理后的所述复合坯料进行机加工,以形成具有通孔的所述中框,部分连接件外露在所述中框的表 面。
  39. 如权利要求38所述的中框组件的制作方法,其特征在于,制备所述复合坯料的过程中,采用一体式的中框坯料热扩散结合所述连接件坯料。
  40. 如权利要求38所述的中框组件的制作方法,其特征在于,制备所述复合坯料的过程中,采用至少两个中框坯料进行热扩散结合所述连接件坯料,形成至少两个复合板材,对所述至少两个复合板材进行通过机裁切、机加工获得至少两个子框件,再将至少两个所述子框件拼接形成所述中框。
  41. 如权利要求37所述的中框组件的制作方法,其特征在于,制作所述中框的步骤包括:提供一体式的中框坯料及至少两个连接件坯料,所述中框坯料的材料与所述连接件坯料的材料不同;对中框坯料进行加工形成框体结构;制备复合坏料,通过热扩散将材料所述中框坏料和至少两个所述连接件坯料进行结合;对复合坯料进行热处理,通过进行固溶和时效处理,使得所述中框坏料和所述连接件坯料结合;对热处理后的所述复合坯料进行机加工,以形成具有通孔的所述中框,部分连接件外露在所述中框的表面。
  42. 一种电子设备,其特征在于,所述电子设备包括发热件和如权利要求15-28任一项所述的中框组件,所述发热件对应设置于所述中框组件的所述均热板区域。
  43. 一种电子设备,其特征在于,包括中框、连接件、均热板和电子器件;
    所述连接件与所述中框固定连接,部分所述连接件外露在所述中框的表面形成焊接部;
    所述均热板包括均热板主体和包围所述均热板主体的裙边,所述裙边与所述连接件焊接;
    所述连接件与所述裙边为同种类型的金属材料,或者所述连接件与所述裙边为具有可焊性的不同类型的金属材料;
    所述电子器件设于所述均热板上。
  44. 如权利要求43所述的电子设备,其特征在于,所述中框设有第一通孔,所述焊接部为所述第一通孔的内壁或者所述中框用于承载所述电子器件的表面,所述均热板位于所述第一通孔位置处,所述均热板、所述中框和所述连接件共同构成中框组件,所述均热板设有第二通孔,所述电子设备还包括柔性电路板,所述柔性电路板穿过所述第二通孔,所述柔性电路板分布在所述中框组件相对的两侧。
  45. 如权利要求43所述的电子设备,其特征在于,所述连接件与所述中框的结合处设有第一限位结构,以实现第一方向上的限位;所述连接件与所述裙边通过焊接形成第二限位结构,以实现第二方向上的限位,所述第一方向和所述第二方向为相反的方向。
  46. 如权利要求40所述的电子设备,其特征在于,所述均热板包括第一盖板和第二盖板,所述第二盖板包括第一金属层和第二金属层,所述第一金属层包括主体区和包围所述主体区的边缘区,所述第二金属层与所述主体区重叠,所述边缘区用于所述第一盖板的边缘结合, 以在所述第一盖板和所述第二盖板之间形成封闭腔体,所述第二金属层位于所述封闭腔体内,所述第二金属层的表面形成毛细结构,所述第一金属层的材料强度大于所述第二金属层的材料强度,所述第一金属层的所述边缘区与所述第一盖板的边缘结合以形成所述裙边。
  47. 如权利要求46所述的电子设备,其特征在于,所述第一金属层的材料为钛合金或不锈钢。
  48. 如权利要求47所述的电子设备,其特征在于,所述中框的材料为铝合金或镁合金。
PCT/CN2021/084122 2020-04-18 2021-03-30 均热板及其制作方法、中框组件及其制作方法及电子设备 WO2021208731A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP21788007.9A EP4123252A4 (en) 2020-04-18 2021-03-30 STEAM CHAMBER AND MANUFACTURING METHOD THEREOF, CENTER FRAME ARRANGEMENT AND MANUFACTURING METHOD THEREOF AND ELECTRONIC DEVICE
US17/919,635 US20230171924A1 (en) 2020-04-18 2021-03-30 Vapor Chamber and Manufacturing Method Thereof, Middle Frame Assembly and Manufacturing Method Thereof, and Electronic Device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010308678.1 2020-04-18
CN202010308678.1A CN113543574B (zh) 2020-04-18 2020-04-18 均热板及其制作方法、中框组件及其制作方法及电子设备

Publications (1)

Publication Number Publication Date
WO2021208731A1 true WO2021208731A1 (zh) 2021-10-21

Family

ID=78083527

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/084122 WO2021208731A1 (zh) 2020-04-18 2021-03-30 均热板及其制作方法、中框组件及其制作方法及电子设备

Country Status (4)

Country Link
US (1) US20230171924A1 (zh)
EP (1) EP4123252A4 (zh)
CN (1) CN113543574B (zh)
WO (1) WO2021208731A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116984773A (zh) * 2023-09-26 2023-11-03 江苏辅星电子有限公司 一种铜网毛细元器件组装设备及方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115615226A (zh) * 2021-07-14 2023-01-17 中兴智能科技南京有限公司 均温板、均温板的制造方法及电子设备
CN114669971B (zh) * 2022-05-10 2023-03-14 中国航空制造技术研究院 一种用于批量成型多个带有螺纹孔零件的制造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109151135A (zh) * 2017-06-28 2019-01-04 华为技术有限公司 一种复合中框、终端和焊接实现方法
CN110035643A (zh) * 2019-05-23 2019-07-19 Oppo广东移动通信有限公司 散热组件以及电子设备
TWM583041U (zh) * 2019-05-10 2019-09-01 雙鴻科技股份有限公司 均溫板
CN111010858A (zh) * 2019-12-30 2020-04-14 Oppo广东移动通信有限公司 散热装置、散热装置的制备方法及电子设备
TW202014660A (zh) * 2018-10-12 2020-04-16 宏達國際電子股份有限公司 熱轉移模組及其製造方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWM299458U (en) * 2006-04-21 2006-10-11 Taiwan Microloops Corp Heat spreader with composite micro-structure
CN104764350B (zh) * 2014-01-08 2017-04-26 江苏格业新材料科技有限公司 一种泡沫铜为吸液芯的均热板制造方法
CN105668501B (zh) * 2016-01-28 2017-03-08 安徽北方芯动联科微系统技术有限公司 具有多功能盖板的芯片级封装的mems芯片及其制造方法
DE112018003831T5 (de) * 2017-07-28 2020-04-09 Dana Canada Corporation Ultradünne wärmetauscher für das wärmemanagement
JP2021036175A (ja) * 2017-09-29 2021-03-04 株式会社村田製作所 ベーパーチャンバー
CN108389951B (zh) * 2018-02-13 2019-11-05 马鞍山杰生半导体有限公司 一种深紫外led封装结构及其制作方法
JP6588599B1 (ja) * 2018-05-29 2019-10-09 古河電気工業株式会社 ベーパーチャンバ
CN110277510B (zh) * 2019-06-27 2021-03-23 京东方科技集团股份有限公司 一种显示面板及其制备方法、以及显示装置
CN110213947B (zh) * 2019-06-28 2020-11-27 Oppo广东移动通信有限公司 壳体组件及其制备方法以及电子设备
CN110267499B (zh) * 2019-06-28 2020-12-15 Oppo广东移动通信有限公司 壳体组件及其制备方法以及电子设备
CN110260697B (zh) * 2019-07-19 2024-02-20 常州恒创热管理有限公司 一种铝基均热板

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109151135A (zh) * 2017-06-28 2019-01-04 华为技术有限公司 一种复合中框、终端和焊接实现方法
TW202014660A (zh) * 2018-10-12 2020-04-16 宏達國際電子股份有限公司 熱轉移模組及其製造方法
TWM583041U (zh) * 2019-05-10 2019-09-01 雙鴻科技股份有限公司 均溫板
CN110035643A (zh) * 2019-05-23 2019-07-19 Oppo广东移动通信有限公司 散热组件以及电子设备
CN111010858A (zh) * 2019-12-30 2020-04-14 Oppo广东移动通信有限公司 散热装置、散热装置的制备方法及电子设备

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4123252A4

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116984773A (zh) * 2023-09-26 2023-11-03 江苏辅星电子有限公司 一种铜网毛细元器件组装设备及方法
CN116984773B (zh) * 2023-09-26 2023-12-12 江苏辅星电子有限公司 一种铜网毛细元器件组装设备及方法

Also Published As

Publication number Publication date
EP4123252A1 (en) 2023-01-25
CN113543574B (zh) 2023-03-31
EP4123252A4 (en) 2024-03-13
US20230171924A1 (en) 2023-06-01
CN113543574A (zh) 2021-10-22

Similar Documents

Publication Publication Date Title
WO2021208731A1 (zh) 均热板及其制作方法、中框组件及其制作方法及电子设备
CN104754913A (zh) 导热复合材料片及其制作方法
JPWO2014045766A1 (ja) 半導体装置及び半導体装置の製造方法
CN102097417B (zh) 一种集成功率半导体功率模块
CN112087920A (zh) 不锈钢均热板及其制造方法
CN102818467B (zh) 平板热管及其制作方法
CN101137280B (zh) 一种大功率元件散热器的加工制作方法
WO2022267268A1 (zh) 微通道热沉及其制造方法
CN202142521U (zh) 组合式大功率半导体芯片
CN206893612U (zh) 一种用于高温真空焊接液冷板中的密封结构
CN113517243A (zh) 一种非气密性陶瓷倒装焊封装散热结构
CN211739969U (zh) 一种vc散热器的抽真空口结构
CN217363619U (zh) 热管连接结构
CN217363612U (zh) 散热器的热管安装结构
CN208753724U (zh) 一种全无机vcsel器件
CN101271832A (zh) 基座
CN103633550A (zh) 一种半导体激光器bar条垂直阵列的封装方法
CN217363614U (zh) 用于散热器的散热单元
CN201845770U (zh) 一种集成功率半导体功率模块
CN114850811A (zh) 散热器的加工方法
CN211210224U (zh) 一种在输出端背面散热的全密封金属外壳
TW202211777A (zh) 液冷頭及其製造方法
CN111085768A (zh) 一种铝基金属材料低温扩散连接方法
CN203148275U (zh) 平板热管
CN213830693U (zh) 复合材料均热板

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21788007

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2021788007

Country of ref document: EP

Effective date: 20221018

NENP Non-entry into the national phase

Ref country code: DE