Housing assembly and method of making same, electronic device

Abstract

The application provides a shell assembly and a manufacturing method thereof and an electronic device, wherein the shell assembly comprises a frame and a bearing plate, the frame is internally provided with a cavity, the cavity extends along at least one side edge of the frame; the bearing plate is arranged in a mounting space surrounded by the frame, and a circumferential edge of the bearing plate is fixedly connected with the frame. The frame of the shell assembly is designed as a hollow structure, so that the heat performance of the frame is improved, and the overall strength of the shell assembly is improved under the condition that the shell assembly meets the light and thin design requirements.

Description

Technical Field

[0001] This application relates to the field of terminal technology, and in particular to a housing assembly and its manufacturing method, and electronic devices. Background Technology

[0002] In electronic devices, housing components (such as mid-frames) are typically used to support and protect functional components. However, as electronic devices become thinner and lighter, the weight and thickness of housing components also decrease, resulting in insufficient strength of housing components and poor thermal performance (such as thermal insulation or thermal conductivity). Summary of the Invention

[0003] This application provides a housing assembly and its manufacturing method, as well as an electronic device, which improves the thermal performance and strength of the housing assembly while meeting the design requirements of thinness and lightness.

[0004] According to some embodiments, a first aspect of this application provides a housing assembly including a frame and a support plate, wherein the frame has a cavity inside and the cavity extends along at least one side of the frame; The support plate is disposed within the installation space enclosed by the frame, and the circumferential edge of the support plate is fixedly connected to the frame.

[0005] In the housing assembly provided in the first aspect of this application, a cavity extending along at least one side of the frame is provided inside the frame. By providing a cavity inside the frame, the weight of the housing assembly can be reduced. Moreover, the cavity inside the frame can form a heat-insulating space, improving the heat insulation performance of the frame and thus improving the thermal performance of the housing assembly. In addition, the support plate is located within the mounting space enclosed by the frame, and the support plate can serve as a supporting frame for the frame, improving the overall strength of the housing assembly.

[0006] In some embodiments, a first connecting portion is provided on the side of the frame that is connected to the support plate, and the first connecting portion extends circumferentially along the frame; The support plate has a second connecting part on its circumferential edge. The second connecting part extends along the circumferential direction of the support plate and is fitted and fixed with the first connecting part.

[0007] In some embodiments, the first connecting portion has two opposing sidewalls, at least one of which is provided with a slot that extends circumferentially along the frame. The second connecting portion wraps around the two sidewalls of the first connecting portion, and the second connecting portion includes a protrusion embedded in the slot, the protrusion extending circumferentially along the frame.

[0008] In some embodiments, the second connecting portion includes a connecting plate fixedly connected to the circumferential edge of the bearing plate, and two side plates disposed at opposite ends of the connecting plate, each side plate correspondingly wrapping around the outer side of one of the side walls; At least one of the two side plates is provided with the protrusion.

[0009] In some embodiments, the cross-section of the slot and the protrusion is an arc, triangle, square or trapezoid, with the plane perpendicular to the extension direction of the frame as the cross-section.

[0010] In some embodiments, the cavity of the frame is a sealed space, and the cavity is filled with a thermally conductive medium.

[0011] In some embodiments, a heat insulation medium is disposed within the cavity of the frame.

[0012] In some embodiments, the frame is provided with at least one slit and at least one shielding member corresponding to the at least one slit, the at least one slit dividing the frame into at least one frame segment that can serve as an antenna radiator. Each of the aforementioned cracks is provided with a corresponding shielding element, which seals the crack.

[0013] In some embodiments, the shielding member is bonded and fixed to the two sides of the fracture.

[0014] In some embodiments, the cross-sectional shape of the shielding member is the same as that of the border, with a plane perpendicular to the extension direction of the border as the cross-section.

[0015] In some embodiments, the carrier plate is provided with at least one antenna clearance area and at least one filler corresponding to the at least one antenna clearance area. Each antenna clearance area is close to the edge of the carrier plate, and the antenna clearance area is a through hole that penetrates the carrier plate in a direction perpendicular to the plane on which the carrier plate is located. Each of the filling elements fills the corresponding antenna clearance area.

[0016] According to some embodiments of this application, a second aspect of this application also provides an electronic device that includes the housing assembly described in any of the above embodiments.

[0017] The electronic device provided in the second aspect of this application also has the advantages of the housing assembly described in the first aspect, since it includes the housing assembly described in the first aspect. These advantages will not be elaborated here.

[0018] According to some embodiments of this application, a third aspect of this application also provides a method for manufacturing a housing assembly, comprising: Provide bar-shaped billets; The rod-shaped blank is extruded to form a hollow tube; The tubing is bent to form a frame; The frame is placed in a die-casting mold to form a support plate located within the installation space enclosed by the frame, and the circumferential edge of the support plate is fixedly connected to the frame.

[0019] In the method for manufacturing the housing assembly provided in the third aspect of this application, the frame and the support plate of the housing assembly are manufactured using two different processes. The frame is manufactured into a hollow structure using an extrusion process, and then the support plate is die-cast onto the frame using a die-casting process. Compared to manufacturing the housing assembly using full CNC machining, using extrusion and die-casting processes reduces the complexity of the manufacturing process and the processing time, thereby increasing the production efficiency and reducing the processing cost of the housing assembly. Furthermore, compared to full CNC machining, manufacturing the housing assembly using extrusion and die-casting processes requires very little or no material removal, improving the utilization rate of the rod-shaped blank and the raw materials forming the support plate, thus reducing raw material waste and lowering the cost of the housing assembly.

[0020] Furthermore, since the support plate is manufactured using a die-casting process, not only can the required shape of the support plate be produced in one step, but it can also be integrated with the frame, saving the steps of welding or bonding the support plate to the frame, thereby improving the production efficiency of the housing assembly. Moreover, the housing assembly formed using the above method has a reduced weight because the frame is made of hollow tubing; and the cavity within the frame provides insulation, improving the thermal performance of the housing assembly.

[0021] In some embodiments, the step of extruding the rod-shaped billet to form a hollow tube includes: The rod-shaped billet is fixed inside the extrusion cylinder; A punch is used to press the rod-shaped blank from one end to the other. The punch is removed to form a hollow tube.

[0022] In some embodiments, the frame is provided with a first connecting portion, and the first connecting portion is provided with a slot; The first connecting part, the slot, and the hollow tube are formed in the same extrusion process.

[0023] In some embodiments, the step of bending the tubing to form a frame includes: The straight pipe is bent into a frame-shaped pipe; The first and last ends of the welded frame-shaped pipe are made to form an integral frame structure of the frame-shaped pipe.

[0024] In some embodiments, after the step of die-casting the frame in a die-casting mold to form a support plate located within the mounting space enclosed by the frame, the manufacturing method further includes: The frame and the support plate are machined to form at least one slit in the frame and at least one antenna clearance area in the support plate, the antenna clearance area being close to the edge of the support plate.

[0025] In some embodiments, after machining the frame and the carrier plate to form at least one seam in the frame and at least one antenna clearance area in the carrier plate, the manufacturing method further includes: A shielding element is bonded and fixed in each of the aforementioned joints; The frame with the shielding element bonded to it and the carrier plate are placed in an injection mold to form at least one filler that fills each of the antenna clearance areas, with each filler filling a corresponding antenna clearance area. Attached Figure Description

[0026] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0027] Figure 1 A perspective view of the housing assembly provided in an embodiment of this application.

[0028] Figure 2 An exploded view of the housing assembly provided in an embodiment of this application.

[0029] Figure 3 for Figure 1 Sectional view along the AA direction.

[0030] Figure 4 for Figure 1 A magnified view of area B in the middle.

[0031] Figure 5 When viewing along the Y direction Figure 4 A schematic diagram of one side of the interrupted seam.

[0032] Figure 6 for Figure 1 A schematic diagram of the shielding component.

[0033] Figure 7 A flowchart illustrating the manufacturing process of the housing assembly provided in this application embodiment.

[0034] Figure 8 This is a front view of the rod-shaped billet in an embodiment of this application.

[0035] Figure 9 for Figure 8 Cross-sectional view of the medium-sized bar billet.

[0036] Figure 10 This is an end view of the hollow tube formed by extruding the rod-shaped billet in an embodiment of this application.

[0037] Figure 11 This is a schematic diagram of the extrusion process in an embodiment of this application, in which a rod-shaped billet is extruded to form a hollow tube.

[0038] Figure 12 This is a flowchart illustrating the structure of the housing assembly in an embodiment of this application.

[0039] Explanation of reference numerals in the attached figures: 100 - Housing assembly; 110 - Border; 111-Section break, 112-Shielding component, 113-First connecting part, 114-Slot, 115-Cavity; 120 - Load-bearing plate; 121-Filling part, 122-Connecting plate, 123-Side plate, 124-Protrusion, 125-Second connecting part, 126-Antenna clearance area; 130 - Rod-shaped billet; 131 - Hollow tube; 300 - Extrusion cylinder, 310 - Punch. Detailed Implementation

[0040] The demand for thinner and lighter electronic devices has led to a reduction in the weight and thickness of housing components such as the mid-frame, resulting in insufficient strength and poor thermal performance. Furthermore, housing components are typically manufactured entirely using CNC machine tools to process sheet metal, resulting in low production efficiency and high costs.

[0041] In view of this, in order to improve the strength and thermal performance of the housing assembly in the context of the trend towards thinner and lighter electronic devices, this application provides a housing assembly that can be applied to electronic devices such as mobile phones, tablets, laptops, Ultra-Mobile Personal Computers (UMPCs), handheld computers, walkie-talkies, netbooks, Personal Digital Assistants (PDAs), dashcams, and wearable devices (smartwatches, smart bracelets) to carry and protect the functional components in the electronic devices.

[0042] It is understood that the housing assembly can be a front frame, a middle frame, and / or a back cover. For example, when the housing assembly is used in a mobile phone, it can be the front frame, the middle frame, and / or the battery cover of the phone. The front frame, the middle frame, and the battery cover are arranged sequentially along the thickness direction of the phone. The front frame is used to support and protect the phone's display screen, the middle frame is used to support and protect the motherboard, and the battery cover is used to support and protect the battery.

[0043] like Figures 1-3 As shown, the housing assembly 100 includes a frame 110 and a support plate 120, wherein the frame 110 is used to protect functional components in the electronic device. The frame 110 can be a polygonal frame such as a triangular frame or a rectangular frame, or a circular frame, an elliptical frame, or a similar circular frame. When the frame 110 is a polygonal frame, the frame 110 includes at least one side; for example, if the frame 110 is a rectangular frame, then the frame includes four sides; when the frame 110 is a circular frame, the frame 110 includes one side.

[0044] The frame 110 has a cavity 115 extending along at least one side of the frame. That is, the cavity 115 can be provided in part of the side of the frame 110 or in the entire frame of the frame 110. For example, the frame 110 is a rectangular frame, and the cavity 115 can be provided in one side of the rectangular frame or in all four sides. When the cavity 115 is provided in all four sides, the cavity 115 extends in parallel along the circumference of the frame 110 to form a ring, that is, the frame 110 is a hollow structure, or in other words, the frame 110 is a hollow structure.

[0045] A cavity 115 is provided inside the frame 110. On the one hand, it can reduce the weight of the frame 110, which meets the design requirements of the housing assembly 100 to be thinner and lighter. On the other hand, the cavity 115 inside the frame 110 forms a heat insulation space, which prevents heat from being transferred from the inside of the housing assembly 100 to the outside of the housing assembly 100 (user side), and also prevents heat from being transferred from the outside of the housing assembly 100 to the inside of the housing assembly 100, thereby improving the heat insulation performance of the frame 110 and thus enhancing the user experience.

[0046] The overall shape of the frame 110 can be circular, elliptical, or rectangular. The shape of the support plate 120 matches the overall shape of the frame 110. In this embodiment, for example... Figure 1As shown, the frame 110 is rectangular in shape, and the support plate 120 is also rectangular. The inner side of the frame 110 forms an installation space that can accommodate functional devices. The support plate 120 is disposed within the installation space enclosed by the frame 110, and its circumferential edge is fixedly connected to the frame 110. The support plate 120 is used to support functional devices such as batteries, motherboards, cameras, and ribbon cables. By providing the support plate 120 on the inner side of the frame 110, the support plate 120 can support functional devices in electronic devices and also serve as a supporting frame, improving the strength of the frame 110 and thus improving the overall strength of the housing assembly 100.

[0047] In the housing assembly provided in this application embodiment, the frame 110 has a cavity 115 inside, which not only reduces the weight of the housing assembly 100, but also forms a heat insulation space by utilizing the cavity 115 inside the frame 110, thereby improving the heat insulation performance of the frame 110. In addition, the support plate 120 is located within the installation space enclosed by the frame 110, and the support plate 120 can serve as a supporting frame for the frame 110, thereby improving the overall strength of the housing assembly 100.

[0048] In the above embodiments, the cavity 115 of the frame 110 forms a heat-insulating space, thereby improving the heat insulation performance of the frame 110. In some embodiments, a heat-insulating medium may be disposed within the cavity 115 of the frame 110. The heat-insulating medium includes porous heat-insulating materials (such as honeycomb paper), fibrous heat-insulating materials (such as asbestos or ceramic fibers), and / or powdered heat-insulating materials (such as diatomaceous earth or expanded perlite). By disposing of a heat-insulating medium within the cavity 115 of the frame 110, the heat insulation performance of the frame 110 can be further enhanced. For example, it can prevent heat generated inside the electronic device from being transferred to the frame 110 and affecting the user experience, thereby improving the thermal performance of the housing assembly 100.

[0049] In some embodiments, air is present within the cavity 115 of the frame 110, allowing heat to be transferred from the high-temperature region to the low-temperature region along the extension direction of the cavity 115, thereby achieving rapid heat dissipation of the housing assembly 100 and improving its thermal performance. In other embodiments, the cavity 115 of the frame 110 is a sealed space filled with a thermally conductive medium, which can be water, oil, thermally conductive gel, or thermally conductive silicone. By filling the cavity 115 with a thermally conductive medium, heat is transferred from the high-temperature region to the low-temperature region along the extension direction of the cavity 115, thereby achieving rapid heat dissipation of the housing assembly 100 and improving its thermal performance.

[0050] The frame 110 is fixedly connected to the circumferential edge of the support plate 120, as an example, such as Figure 3As shown, a first connecting portion 113 is provided on the side of the frame 110 that connects to the support plate 120, and the first connecting portion 113 extends circumferentially along the frame 110. That is, the first connecting portion 113 is provided on the side of the frame 110 facing the support plate 120, the first connecting portion 113 is located within the installation space enclosed by the frame 110, and extends circumferentially along the frame 110.

[0051] The support plate 120 has a second connecting portion 125 on its circumferential edge, and the support plate 120 and the frame 110 are fixedly connected through the second connecting portion 125 and the first connecting portion 113. As an example, such as... Figure 3 As shown, the second connecting part 125 is fitted and fixed with the first connecting part 113. That is, a part of the second connecting part 125 is fitted into the first connecting part 113, and / or a part of the first connecting part 113 is fitted into the second connecting part 125, so that the first connecting part 113 and the second connecting part 125 are fitted and fixed.

[0052] The first connecting part 113 can be a strip structure located within the mounting space of the frame 110, with a cross-section of a plane perpendicular to the circumferential direction of the frame 110. The cross-sectional shape of the first connecting part 113 can be rectangular. The second connecting part 125 can be a U-shaped structure located at the circumferential edge of the support plate 120, with the opening of the U-shaped structure facing the frame 110. The U-shaped second connecting part 125 wraps around the first connecting part 113, that is, the first connecting part 113 is fitted into the second connecting part 125, thereby achieving a fixed connection between the first connecting part 113 and the second connecting part 125.

[0053] The first connecting portion 113 includes two side walls disposed opposite to each other, so as to Figure 3 Taking the shown orientation as an example, the two sidewalls are the upper and lower sidewalls of the first connecting part 113, respectively. The two sidewalls are enclosed by the second connecting part 125, achieving a locking and fixing between the first connecting part 113 and the second connecting part 125. At least one of the two sidewalls is provided with a slot 114, which extends circumferentially along the frame 110; that is, the slot 114 can be an annular groove extending circumferentially along the frame 110. Both sidewalls can be provided with slots 114, or only one sidewall can have a slot 114. Furthermore, the number of slots 114 in the two sidewalls can be the same or different.

[0054] The second connecting part 125 wraps around the two side walls of the first connecting part 113, as an example, such as Figure 3As shown, the second connecting portion 125 includes a protrusion 124 corresponding to the slot 114. The protrusion 124 extends circumferentially along the frame 110 and is fitted into the slot 114. By utilizing the mating protrusion 124 and the slot 114, the fitting force or biting force between the first connecting portion 113 and the second connecting portion 125 is increased, preventing the first connecting portion 113 and the second connecting portion 125 from separating, thereby improving the connection reliability between the first connecting portion 113 and the second connecting portion 125, and further improving the connection reliability between the frame 110 and the support plate 120.

[0055] like Figure 3 and Figure 5 As shown, the second connecting portion 125 further includes a connecting plate 122 fixedly connected to the circumferential edge of the supporting plate 120, and two side plates 123 disposed at opposite ends of the connecting plate 122. The two side plates 123 correspond one-to-one with the two side walls of the first connecting portion 113 and wrap around the corresponding side walls. One of the two side plates 123 is provided with the aforementioned protrusion 124, or both side plates 123 are provided with the aforementioned protrusion 124. In this embodiment, both side plates 123 are provided with protrusions 124, and correspondingly, both side walls of the first connecting portion 113 are provided with slots 114.

[0056] The shape of the slot 114 matches the shape of the protrusion 124. Taking a plane perpendicular to the extending direction of the frame 110 as the cross-section, the cross-sectional shapes of the slot 114 and the protrusion 124 can be arc-shaped, triangular, square, or trapezoidal. For example... Figure 3 and Figure 5 As shown, in this embodiment, the cross-sectional shape of both the slot 114 and the protrusion 124 is arc-shaped.

[0057] The frame 110 can be a metal frame or a non-metal frame; for example, the frame 110 can be a stainless steel frame, a titanium frame, or a titanium alloy frame. Besides protecting the functional components of the electronic device, the frame 110 can also serve as an antenna radiator for receiving and transmitting electromagnetic wave signals. In some embodiments, such as... Figure 1 , Figure 2 and Figure 4 As shown, the border 110 is provided with at least one slit 111, which divides the border 110 into at least two border segments. For example, Figure 1 As shown, the frame 110 is provided with four slits 111, which divide the frame into four frame segments. Some or all of these frame segments can serve as antenna radiators, thereby improving the signal strength of electronic devices using the housing assembly 100 and making them suitable for multiple signal frequency bands.

[0058] In the case where there are gaps 111 in the frame 110, in order to ensure the strength of the frame 110, in some embodiments, a shielding member 112 is provided in each gap 111, and the shielding member 112 seals the gap 111 in which it is located. That is, the number of shielding members 112 is the same as the number of gaps 111, and each shielding member 112 closes a corresponding gap 111. With this design, the shielding members 112 can fill the gaps 111 of the frame 110, ensuring that at least a part of the frame 110 serves as an antenna radiator, thus ensuring the performance of the antenna, while keeping the various frame segments of the frame 110 as a whole, thereby improving the strength of the frame 110 at the gap location; on the other hand, it can also make the frame 110 as a whole continuous, improving the aesthetics of the frame 110. Furthermore, when the filler is subsequently formed in the antenna clearance area, the shielding member 112 is used to prevent molten plastic from flowing from the gap 111 into the cavity 115 of the frame 110, ensuring that the frame 110 is a hollow structure.

[0059] When the cover 112 is used to close the gap 111, the cover 112 is connected to the end of the frame at the location of the gap 111, for example, the cover 112 is bonded and fixed to the two sides of the gap 111 by adhesive or bonding agent.

[0060] The shielding member 112 can be made of metal or non-metal. For example, the shielding member 112 can be a metal part of the same material as the frame 110. For instance, the shielding member 112 can be a stainless steel shielding member. Figure 5 and Figure 6 As shown, taking the plane perpendicular to the extension direction of the frame 110 as the cross-section, the shape of the shielding member 112 is the same as the cross-sectional shape of the gap 111. This design allows the shape of the shielding member 112 to match the cross-sectional shape of the frame 110, ensuring the antenna performance when the frame acts as an antenna radiator, while improving the strength of the frame 110 at the gap location and ensuring the overall aesthetics of the frame 110.

[0061] The material of the support plate 120 can be metal or alloy; for example, the material of the support plate 120 can be aluminum alloy. Figure 1 and Figure 2 As shown, the carrier plate 120 is provided with at least one antenna clearance area 126. Each antenna clearance area 126 is close to the edge of the carrier plate 120. The antenna clearance area 126 is a through hole penetrating the carrier plate 120 along a direction perpendicular to the plane of the carrier plate 120, that is, the antenna clearance area 126 is along... Figure 2 The antenna passes through the support plate 120 in the Z direction. By setting an antenna clearance area 126 in the support plate 120, the antenna bandwidth can be improved, the distributed capacitance can be reduced, and the antenna performance using the frame 110 as the antenna radiator can be improved.

[0062] like Figure 1 and Figure 2As shown, the carrier plate 120 is also provided with at least one filler 121, and the at least one filler 121 corresponds one-to-one with at least one antenna clearance area 126. That is, one filler 121 is provided for each antenna clearance area 126, meaning that each filler 121 fills the corresponding antenna clearance area 126. The filler 121 can be a plastic part, so that the antenna clearance area 126 can be filled by the filler 121 without affecting the performance of the antenna clearance area 126.

[0063] This application also provides an electronic device, which includes a display device, a back cover, and a housing assembly as described in any of the above embodiments. The display screen is disposed on the front side of the housing assembly, and the back cover is disposed on the rear side of the housing assembly. Since this electronic device uses the housing assembly described in any of the above embodiments, it also has the advantages of the aforementioned mid-frame mechanism, as detailed in the relevant description above.

[0064] It is understandable that electronic devices can be mobile or fixed terminals such as mobile phones, tablets, laptops, Ultra-Mobile Personal Computers (UMPCs), handheld computers, walkie-talkies, netbooks, Personal Digital Assistants (PDAs), dashcams, and wearable devices (smartwatches, smart bracelets). The housing components can be a front frame, a middle frame, and / or a back cover. For example, when the electronic device is a mobile phone, the housing components can be the front frame, the middle frame, and / or the battery cover, arranged sequentially along the thickness of the phone. The front frame supports and protects the phone's display screen, the middle frame supports and protects the motherboard, and the battery cover supports and protects the battery.

[0065] like Figures 7-12 as well as Figures 1-3 As shown in the embodiments of this application, a method for manufacturing a housing assembly is also provided, the method comprising: Step S210: Provide a rod-shaped billet.

[0066] like Figure 8 and Figure 9 As shown, the rod-shaped blank 130 is a straight rod, or in other words, the length direction of the rod-shaped blank 130 extends in a straight line. A plane perpendicular to the extension direction of the rod-shaped blank 130 is taken as its cross-section. The cross-sectional shape of the rod-shaped blank 130 can be circular, approximately circular, rectangular, approximately rectangular, or other polygonal. In this embodiment, the cross-sectional shape of the rod-shaped blank 130 is rectangular. The material of the rod-shaped blank 130 can be stainless steel, titanium, titanium alloy, aluminum alloy, or magnesium alloy. In this embodiment, the material of the rod-shaped blank 130 is stainless steel.

[0067] Step S220: Extrude the rod-shaped blank to form a hollow tube.

[0068] Before extruding the rod-shaped billet 130, it needs to be fixed in the extrusion die, such as an extrusion cylinder. Then, a punch is used to extrude the rod-shaped billet 130 from one end to the other. After extrusion, the punch penetrates the rod-shaped billet 130 along its length. After the punch is removed, as shown... Figure 10 As shown, the extruded rod-shaped billet 130 forms a hollow tube 131.

[0069] Step S230: Bend the tube to form a frame.

[0070] In the bending die, the hollow tube 131 formed in step S220 is bent so that the hollow tube 131 is bent into a frame 110 of the required shape and size. After bending the straight tube 131 into the frame, in some embodiments, the first and last ends of the tube need to be welded, such as... Figure 12 As shown, the beginning and end of pipe 131 are at... Figure 12 The welding in the C-zone connects the first and last ends of the pipe 131 into one piece, thus making the frame 110 a single structure. This ensures the dimensional stability of the frame 110 and improves the dimensional accuracy and stability of the bearing plate 120 formed in the die-casting mold.

[0071] Step S240: The frame is placed in the die-casting mold for die casting to form a support plate located in the installation space enclosed by the frame. The circumferential edge of the support plate is fixedly connected to the frame.

[0072] After the frame formed in step S230 is placed in the die-casting mold, the molten metal is injected into the cavity of the die-casting mold under the action of the die-casting machine. After the molten metal solidifies, it forms the support plate 120.

[0073] In the manufacturing method of the housing assembly provided in this application embodiment, the frame 110 and the support plate 120 of the housing assembly 100 are manufactured using two different processes. The frame 110 is manufactured into a hollow structure using an extrusion process. Then, within the installation space enclosed by the frame 110, the support plate 120, which is fixedly connected to the frame 110, is die-cast. Compared to manufacturing the housing assembly entirely using CNC machining, this application embodiment uses both extrusion and die-casting processes to manufacture the housing assembly 100, reducing process difficulty and processing time, improving production efficiency, and lowering processing costs. Furthermore, compared to manufacturing the housing assembly entirely using CNC machining, the extrusion and die-casting processes require minimal or no material removal, improving the utilization rate of the rod-shaped blank and the raw materials forming the support plate, thereby reducing raw material waste and lowering the cost of the housing assembly.

[0074] Furthermore, the housing assembly 100 formed using the above method, due to the hollow structure of the frame 110, has reduced weight on the one hand, and utilizes the hollow structure for heat insulation, that is, the hollow structure forms a heat insulation layer on the frame 110, improving the heat insulation performance of the frame 110, and thus improving the thermal performance of the housing assembly 100. Moreover, since the support plate 120 is manufactured using a die-casting process, not only can the support plate 120 of the required shape be produced in one step, but the support plate 120 can also be integrated with the frame 110, saving the steps of welding or bonding the support plate 120 to the frame 110, thereby improving the manufacturing efficiency of the housing assembly 100.

[0075] In some embodiments, such as Figure 11 As shown, the steps of extruding a rod-shaped billet to form a hollow tube include: First, the rod-shaped billet 130 is fixed inside the extrusion cylinder 300 of the die-casting mold; then, using the punch 310, the rod-shaped billet 130 is extruded from one end to the other. Under the extrusion of the punch 310, the rod-shaped billet 130 is extruded into a hollow tube 131 in the opposite direction to the extrusion direction of the punch 310; then, the punch 310 is extracted from the hollow tube 131.

[0076] The hollow frame 110 is manufactured using an extrusion process, which reduces the complexity and processing time compared to CNC machining, thereby improving the production efficiency of the middle frame. Furthermore, it allows for full utilization of the rod-shaped blank 130, reducing raw material waste and lowering the production cost of the housing assembly 100.

[0077] In some embodiments, such as Figure 3 and Figure 5 As shown, the frame 110 is provided with a first connecting portion 113, and the first connecting portion 113 is provided with a slot 114. The first connecting portion 113 and the slot 114 are used to fixably connect with the second connecting portion 125 of the support plate 120, thereby realizing a fixed connection between the frame 110 and the support plate 120. When using an extrusion process to manufacture a hollow tube 131 for the frame 110 with the first connecting portion 113 and the slot 114, such as... Figure 10 As shown, the first connecting part 113, the slot 114, and the hollow tube 131 are formed in the same extrusion process. This design allows the required structure to be manufactured in one go while meeting the structural requirements of the frame 110, simplifying the manufacturing process of the frame 110 and improving the production efficiency of the housing assembly 100.

[0078] After the step of die-casting the frame 110 in a die-casting mold to form the support plate 120 located within the mounting space enclosed by the frame 110, the above manufacturing method further includes: like Figure 12 As shown, the frame 110 and the carrier plate 120 are machined, for example, by milling, to form at least one slit 111 in the frame 110 and at least one antenna clearance area 126 in the carrier plate 120, the antenna clearance area 126 being located near the edge of the carrier plate 120. The at least one slit 111 divides the frame 110 into multiple frame segments, some or all of which can serve as antenna radiators, thereby improving the signal strength of the electronic device using the housing assembly 100. By providing the antenna clearance area 126, antenna bandwidth can be improved, distributed capacitance reduced, and antenna performance improved when using the frame 110 as an antenna radiator.

[0079] After machining the frame 110 and the carrier plate 120 to form at least one slot 111 in the frame 110 and at least one antenna clearance area 126 in the carrier plate 120, the above manufacturing method further includes: In each joint 111, a fixed shielding element 112 is bonded and fixed, such as Figures 1-6 As shown, the shielding member 112 can seal the gap 111, preventing the molten plastic from flowing into the cavity 115 of the frame 110 during the subsequent injection molding of the filler 121, thus ensuring that the frame 110 is a hollow structure.

[0080] After the shielding element 112 is set in the gap 111, the frame 110 and the carrier plate 120 with the shielding element 112 bonded together are placed in the injection mold. Molten plastic is injected into the injection mold by the injection molding machine. After the molten plastic solidifies, it forms at least one filler 121 that seals the antenna clearance area 126. Each filler 121 fills a corresponding antenna clearance area 126.

[0081] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0082] The use of terms such as "an example," "some embodiments," "illustrative implementation," "example," "specific example," or "some examples" indicates that a specific feature, structure, step, or characteristic described in connection with an implementation or example is included in at least one implementation or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same implementation or example. Furthermore, the specific features, structures, steps, or characteristics described may be combined in any suitable manner in one or more implementations or examples.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A housing assembly, characterized by, Includes a frame and a support plate, wherein the frame has a cavity inside, the cavity extends along at least one side of the frame, the cavity is used to form a thermal insulation space to prevent heat transfer between the inside and outside of the housing assembly; The support plate is disposed within the installation space enclosed by the frame, and the circumferential edge of the support plate is fixedly connected to the frame; The frame is provided with at least one gap and at least one shielding member corresponding to the at least one gap, and the support plate is provided with at least one antenna clearance area and at least one filling member corresponding to the at least one antenna clearance area. The shielding element is used to prevent the filler from flowing into the cavity of the frame when it melts.

2. The housing assembly of claim 1, wherein, A first connecting portion is provided on the side of the frame that is connected to the support plate, and the first connecting portion extends along the circumference of the frame. The support plate has a second connecting part on its circumferential edge. The second connecting part extends along the circumferential direction of the support plate and is fitted and fixed with the first connecting part.

3. The housing assembly of claim 2, wherein, The first connecting portion has two oppositely disposed sidewalls, at least one of which is provided with a slot, the slot extending circumferentially along the frame; The second connecting portion wraps around the two sidewalls of the first connecting portion, and the second connecting portion includes a protrusion embedded in the slot, the protrusion extending circumferentially along the frame.

4. The housing assembly according to claim 3, characterized in that, The second connecting part includes a connecting plate fixedly connected to the circumferential edge of the bearing plate, and two side plates disposed at opposite ends of the connecting plate, each side plate correspondingly wrapping around the outer side of one of the side walls; At least one of the two side plates is provided with the protrusion.

5. The housing assembly according to claim 4, characterized in that, With a plane perpendicular to the extension direction of the frame as the cross-section, the cross-sectional shape of the slot and the protrusion are both arc-shaped, triangular, square or trapezoidal.

6. The housing assembly according to any one of claims 1-5, characterized in that, The cavity of the frame is a sealed space, and the cavity is filled with a heat-conducting medium.

7. The housing assembly according to any one of claims 1-5, characterized in that, The cavity of the frame is provided with a heat insulation medium.

8. The housing assembly according to any one of claims 1-5, characterized in that, The at least one slit divides the frame into at least one frame segment that can serve as an antenna radiator. Each of the aforementioned cracks is provided with a corresponding shielding element, which seals the crack.

9. The housing assembly according to claim 8, characterized in that, The shielding element is bonded and fixed to the two sides of the fracture.

10. The housing assembly according to claim 8, characterized in that, The cross-sectional shape of the shielding member is the same as that of the border, with a plane perpendicular to the extension direction of the border as the cross-section.

11. The housing assembly according to claim 8, characterized in that, Each of the antenna clearance areas is located near the edge of the support plate, and the antenna clearance area is a through hole penetrating the support plate along a direction perpendicular to the plane of the support plate; Each of the filling elements fills the corresponding antenna clearance area.

12. An electronic device, characterized in that, Includes the housing assembly as described in any one of claims 1-11.

13. A method for manufacturing a housing assembly, characterized in that, include: Provide bar-shaped billets; The rod-shaped blank is extruded to form a hollow tube, which is used to form an insulating space to prevent heat transfer between the inside and outside of the housing assembly. The tube is bent to form a frame, and the frame has a cavity inside. The frame is placed in a die-casting mold to form a support plate located within the installation space enclosed by the frame, and the circumferential edge of the support plate is fixedly connected to the frame; The frame is provided with at least one gap and at least one shielding member corresponding to the at least one gap, and the support plate is provided with at least one antenna clearance area and at least one filling member corresponding to the at least one antenna clearance area. The shielding element is used to prevent the filler from flowing into the cavity of the frame when it melts.

14. The manufacturing method according to claim 13, characterized in that, The step of extruding the rod-shaped billet to form a hollow tube includes: The rod-shaped billet is fixed inside the extrusion cylinder; A punch is used to press the rod-shaped blank from one end to the other. The punch is removed to form a hollow tube.

15. The method for manufacturing the housing assembly according to claim 14, characterized in that, The frame is provided with a first connecting part, and the first connecting part is provided with a slot; The first connecting part, the slot, and the hollow tube are formed in the same extrusion process.

16. The method for manufacturing the housing assembly according to claim 13, characterized in that, The step of bending the tube to form the frame includes: The straight pipe is bent into a frame-shaped pipe; The first and last ends of the welded frame-shaped pipe are made to form an integral frame structure of the frame-shaped pipe.

17. The method for manufacturing a housing assembly according to claim 13, characterized in that, After the step of die-casting the frame in a die-casting mold to form a support plate located within the mounting space enclosed by the frame, the manufacturing method further includes: The frame and the support plate are machined to form at least one slit in the frame and at least one antenna clearance area in the support plate, the antenna clearance area being close to the edge of the support plate.

18. The method for manufacturing a housing assembly according to claim 17, characterized in that, After machining the frame and the carrier plate to form at least one seam in the frame and at least one antenna clearance area in the carrier plate, the manufacturing method further includes: A shielding element is bonded and fixed in each of the aforementioned joints; The frame with the shielding element bonded to it and the carrier plate are placed in an injection mold to form at least one filler that fills each of the antenna clearance areas, with each filler filling a corresponding antenna clearance area.

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