Frame and electronic equipment

Abstract

The invention discloses a frame and electronic equipment, and belongs to the technical field of electronic equipment. The frame comprises a shell and a reinforcing body, the shell comprises a bottom plate and a frame, the frame is arranged along the circumferential edge of the bottom plate so that a containing cavity can be defined by the inner side of the frame, a lap joint plate is formed on the circumferential inner side face of the frame, and a mounting area is formed in the space among the lap joint plate, the frame and the bottom plate. The height of the upper surface of the lapping plate is lower than that of the top surface of the shell to form a step for supporting the screen cover plate; and a reinforcing body is arranged in at least part of the mounting area. According to the frame, a stainless steel support placed in the tablet computer can be omitted, and the design of the tablet computer can be thinned on the premise that the requirements for the strength and the bending resistance of the tablet computer are met.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a frame and electronic equipment. Background Art

[0002] At present, tablet computers usually include a screen cover, a display module, a metal shell and a plastic frame. The screen cover is supported on the plastic frame and bonded to the plastic frame, the display module is arranged on the inner side of the screen cover, and the metal shell is wrapped around the outer periphery of the plastic frame. The plastic frame is used to support the display module and other electrical components inside the tablet computer. Since the rigidity of the plastic frame is relatively weak, a stainless steel bracket is usually arranged on the plastic frame to enhance the rigidity of the tablet computer and meet the requirements of bending resistance. The outer frame of the tablet computer adopts a metal shell + plastic frame structure, and is matched with a stainless steel bracket, which will limit the tablet computer from being designed in a thinner direction and affect the experience of mobile electronic devices. Summary of the invention

[0003] The present application provides a frame and an electronic device to solve the technical problem that the outer frame structure of the existing tablet computer is insufficiently rigid, which limits the product from being designed in a thinner direction.

[0004] The technical solution is as follows:

[0005] The first aspect of the present application provides a framework, including:

[0006] The outer shell comprises a bottom plate and a frame, the frame is arranged along the circumferential edge of the bottom plate so that the inner side of the frame encloses a placement cavity, a lap plate is formed on the circumferential inner side of the frame, the space between the lap plate, the frame and the bottom plate forms a mounting area, the height of the upper surface of the lap plate is lower than the height of the top surface of the frame to form a step, and the step is used to support the screen cover;

[0007] A reinforcement body is provided in at least part of the installation area.

[0008] The frame of the present application mainly adopts the structure of a shell and a reinforcement body. The reinforcement body is arranged in an installation area formed between the lap plate, the frame and the bottom plate. It will not affect the layout of the internal components of the tablet computer, and at the same time, it can also increase the rigidity of the frame.

[0009] The reinforcement body is arranged in the installation area formed between the lap plate, the frame and the bottom plate, which makes it possible to increase the height of the reinforcement body along the thickness direction of the frame, thereby making it possible to significantly improve the rigidity and bending resistance of the electronic equipment.

[0010] The design of the lap plate on the inner circumferential side of the frame can not only support the cover plate, but also improve the rigidity of the frame.

[0011] The frame provided in the present application makes it possible to eliminate the stainless steel bracket placed in the tablet computer, thereby achieving a thinner design of the tablet computer while meeting the strength and bending resistance requirements of the tablet computer.

[0012] In addition, the reinforcement body is arranged below the screen cover, and the circumferential edge of the screen cover is designed to fit with the outer shell. At this time, only a circle of gap line is formed between the outer shell and the screen cover, which improves the appearance of the product.

[0013] In some implementations, one end of the reinforcement body contacts the bottom plate, and the other end of the reinforcement body opposite to the bottom plate contacts the lap plate, so as to support the lap plate.

[0014] By supporting the lap plate with a reinforcing body, the strength of the lap plate in supporting the screen cover can be improved.

[0015] In some implementations, a height h1 of the reinforcement along the first direction is not less than 3 / 5 of a height h of the entire electronic device along the first direction, and the first direction is a thickness direction of the electronic device.

[0016] The height h1 of the reinforcement body is not less than 3 / 5 of the height h of the entire electronic equipment to improve the strength and bending resistance of the frame.

[0017] Specifically, the reinforcement can be arranged to protrude from the free end of the lap plate in the horizontal direction; or, the reinforcement can be arranged to be flush with the free end of the lap plate; or, the free end of the lap plate can be arranged to protrude from the side of the reinforcement away from the circumferential side of the housing. The larger the width b2 of the reinforcement in the horizontal direction, the higher the rigidity of the frame. Therefore, it is preferred to increase the b2 value of the reinforcement as much as possible without interfering with other components inside the electronic device.

[0018] Specifically, a shielding black border exists on the circumferential edge of the screen cover, and a width b1 of the lap plate from one end connected to the housing to the free end of the lap plate is smaller than the width of the black border of the screen.

[0019] In some implementations, the frame includes a long frame segment, a short frame segment and an arc-shaped frame segment. The two long frame segments are arranged in parallel with each other, the two short frame segments are arranged in parallel with each other, the arc-shaped frame segment connects adjacent long frame segments and short frame segments, and at least two long frame segments are correspondingly provided with reinforcement bodies.

[0020] Bending is relatively easy to occur on the long frame segment, so it is considered to provide a reinforcement body at least corresponding to the long frame segment of the shell.

[0021] Preferably, reinforcement bodies are not only provided on the two relatively parallel long frame segments, but also provided on the two relatively parallel short frame segments, so as to further improve the bending resistance of the frame.

[0022] Preferably, reinforcement bodies are correspondingly arranged on the long frame segments, the short frame segments and the arc-shaped frame segments of the shell to improve the bending resistance of the frame.

[0023] In some implementations, the reinforcement body includes more than two reinforcement sub-bodies, and two adjacent reinforcement sub-bodies are connected or in contact with each other so that the reinforcement body has a ring-shaped structure.

[0024] In order to facilitate the assembly of the reinforcement and the shell, as well as the processing and manufacturing of the reinforcement, the reinforcement adopts a split structure; the head and tail of each reinforcement split cooperate with each other to form a ring structure, that is, the reinforcement is arranged on the entire area within the circumference of the shell to improve the bending resistance of the frame.

[0025] It is preferred to connect two adjacent reinforcement parts to improve the bending resistance of the frame.

[0026] In addition, with respect to the method for manufacturing the corresponding frame, if the reinforcing body is assembled first and then the lap plate on the outer shell is processed, the reinforcing body can be provided as an integral structure.

[0027] In some implementations, a protrusion is disposed at the end of one of two adjacent reinforcing sub-bodies, and a groove is disposed at the end of the other of the two adjacent reinforcing sub-bodies, and the protrusion is inserted into the groove.

[0028] By providing the protrusion and groove matching structure, the matching area between adjacent reinforcing parts can be increased. When two adjacent reinforcing parts are bonded by colloid, the bonding area between the two adjacent reinforcing parts is increased, thereby improving the connection strength of the two adjacent reinforcing parts.

[0029] By setting the protrusion and groove matching structure, when a tight fit between adjacent reinforcement parts is required to achieve a fixed connection, the sizes of the protrusion and the groove can be set so that the protrusion is inserted into the groove to achieve a plug-in fixed connection.

[0030] In some implementations, a through hole is formed at the location where two adjacent reinforcing sub-bodies are plugged into each other, and glue is injected in the through hole to form a pin structure connecting the two adjacent reinforcing sub-bodies.

[0031] By forming a through hole at the position where two adjacent reinforcing parts are inserted into each other, when glue is injected into the reinforcing body to connect the reinforcing body to the inner side of the shell, the through hole is also filled with glue. When the glue is solidified, the glue in the through hole forms a pin, further strengthening the connection between the two adjacent reinforcing parts.

[0032] In some implementations, the number of reinforcing sub-parts is four and the four reinforcing sub-parts are respectively a first reinforcing sub-part, a second reinforcing sub-part, a third reinforcing sub-part and a fourth reinforcing sub-part, the first reinforcing sub-part and the second reinforcing sub-part are arranged opposite to each other, the third reinforcing sub-part and the fourth reinforcing sub-part are arranged opposite to each other, the first reinforcing sub-part and the second reinforcing sub-part are U-shaped, and the third reinforcing sub-part and the fourth reinforcing sub-part are strip-shaped.

[0033] By arranging four reinforcing parts, it is convenient to assemble the reinforcing parts on the outer shell.

[0034] In some implementations, the reinforcement is bonded to the shell by adhesive.

[0035] The colloid method is simple to connect and is convenient for processing and production. Since the thickness of the shell is relatively thin, it is not suitable to use a connecting piece (such as a screw, etc.) to fix the reinforcement body on the shell.

[0036] In addition, no colloid may be provided between the reinforcement and the shell. For example, when the reinforcement is in a ring structure, the reinforcement can be positioned on the shell by the shapes of the reinforcement and the shell.

[0037] In some implementations, the reinforcement satisfies: an elastic modulus of the reinforcement is greater than an elastic modulus of the shell, or a yield strength of the reinforcement is greater than a yield strength of the shell.

[0038] For the material of the reinforcement, selecting a material with an elastic modulus greater than the elastic modulus of the outer shell or selecting a material with a yield strength greater than the yield strength of the outer shell is beneficial to improving the rigidity of the frame.

[0039] In some implementations, the density of the reinforcement is greater or less than the density of the shell.

[0040] The density of the reinforcement is lower than that of the shell, which can reduce the weight of the frame and thus the weight of the entire electronic device. Of course, the density of the reinforcement can also be higher than that of the shell. Usually, the higher the density, the larger the elastic modulus or yield strength. Although the product is heavy, it is conducive to further thinning the product design.

[0041] In some implementations, the material of the reinforcement body is carbon fiber, titanium alloy, or steel.

[0042] When the material of the reinforcement is titanium alloy or steel, the product is heavy, but due to the high elastic modulus and yield strength, it is conducive to further thinning the product design; when the material of the reinforcement is carbon fiber, the weight of the frame can be reduced, and then the weight of the entire electronic device can be reduced.

[0043] In some implementations, the reinforcement is a carbon fiber rolled tube and the cross-sectional shape of the reinforcement is a spiral.

[0044] The advantages of the carbon fiber coil are light weight and high tensile strength. In addition, the cross-sectional shape of the reinforcement is designed to be spiral, which is beneficial to improving the overall strength of the reinforcement, and further, it is beneficial to improve the bending resistance of the frame.

[0045] In some implementations, the material of the housing is metal.

[0046] The metal shell not only makes the appearance of the electronic device have a metallic texture and beautiful appearance, but also helps to improve the strength of the electronic device.

[0047] In some implementations, the material of the housing is aluminum alloy, magnesium alloy, or titanium alloy.

[0048] Aluminum alloy and magnesium alloy have low density and high strength, which can help reduce the weight of electronic equipment while improving the strength of the frame; titanium alloy has high strength and can improve the strength of the frame.

[0049] In some implementations, the placement cavity is used to place a circuit board and a display module.

[0050] That is, the placement cavity is where the circuit board and the display module are placed, and the mounting area is formed in the circumference of the placement cavity.

[0051] A second aspect of the present application provides an electronic device, comprising a screen cover, a display module and a frame provided by any of the above technical solutions, wherein the display module and the screen cover are stacked, and the display module is arranged on the side of the screen cover facing the base plate, and the screen cover is supported on the steps of the lap plate.

[0052] Through the above technical solution, since the electronic device includes the above frame, it at least has all the beneficial effects of the frame, which will not be repeated here.

[0053] In some implementations, the outer surface of the housing is used to form an exterior surface.

[0054] That is, the circumferential outer side wall of the screen cover is fitted with the circumferential inner side surface of the frame located above the lap plate, so that the outer surface of the shell is used to form an appearance surface to improve the appearance of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 It is a structural schematic diagram of an existing tablet computer;

[0056] Figure 2 yes Figure 1 AA section view;

[0057] Figure 3 yes Figure 2 A partial enlarged view of point B in the middle;

[0058] Figure 4is a schematic diagram of the structure of a tablet computer provided in an embodiment of the present application;

[0059] Figure 5 It is a schematic diagram of the structure of the framework provided in the embodiment of the present application;

[0060] Figure 6 yes Figure 5 A partial enlarged view of point C in the middle;

[0061] Figure 7 It is a diagram showing the relationship between the elastic modulus, yield strength and density of each material;

[0062] Figure 8 is a schematic top view of a frame provided in an embodiment of the present application;

[0063] Fig. 9 yes Figure 8 DD section diagram;

[0064] Fig.10 yes Fig. 9 A partial enlarged view of point E in the middle;

[0065] Fig.11 It is a partial enlarged view of the frame supporting the screen cover;

[0066] Fig.12 It is a partial enlarged view of the framework of another embodiment of the present application;

[0067] Fig.13 is a simplified cross-sectional view of a tablet computer during a bending test provided in an embodiment of the present application;

[0068] Fig.14 This is a flow chart of a frame processing and manufacturing method according to an embodiment of the present application;

[0069] Fig.15 is a schematic diagram of the structure of the housing provided in an embodiment of the present application;

[0070] Fig.16 is a schematic diagram of the structure of a reinforcement provided in an embodiment of the present application;

[0071] Fig.17 is an exploded schematic diagram of a reinforcement provided in an embodiment of the present application;

[0072] Fig.18 yes Fig.16 A partial enlarged view of point F in the middle;

[0073] Fig.19 yes Fig.17 A partial enlarged view of the G in the middle;

[0074] Fig. 20 is a schematic diagram of the structure of a tablet computer provided in an embodiment of the present application;

[0075] Fig.21 yes Fig. 20 A cross-sectional schematic diagram along the HH direction;

[0076] Fig. 22 yes Fig.21 This is a local enlarged view of point I.

[0077] The meanings of the figures are as follows:

[0078] 1. Tablet computer;

[0079] 11. Screen cover; 12. Display module; 13. Support frame; 14. Frame; 15. Stainless steel bracket; 16. Gap line;

[0080] 131. Metal shell; 132. Plastic frame;

[0081] 141. Shell; 142. Reinforcement;

[0082] 1411, overlapping plate; 1412, limiting portion; 1413, frame; 1414, bottom plate;

[0083] 14131, long frame segment; 14132, short frame segment; 14133, arc frame segment;

[0084] 1421, reinforcing body; 1422, protrusion; 1423, groove; 1424, first reinforcing body; 1425, second reinforcing body; 1426, third reinforcing body; 1427, fourth reinforcing body; 1428, first through hole; 1429, second through hole;

[0085] 2. Support roller;

[0086] 3. Pressing roller;

[0087] L. Bending center line. DETAILED DESCRIPTION

[0088] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings. The embodiments described with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, but cannot be understood as limiting the present application.

[0089] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "top", "bottom", "inside", "outside", "up", "down", "left", "right", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0090] In order to clearly describe the technical solution of the present application, the words "first", "second" and the like are used to distinguish the same or similar items with substantially the same functions and effects. Those skilled in the art can understand that the words "first", "second" and the like do not limit the quantity and execution order, and the words "first", "second" and the like do not necessarily limit the difference.

[0091] In this application, unless otherwise clearly specified and limited, the terms "connected", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0092] In this application, "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships; for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0093] It should be noted that, in this application, words such as "in one embodiment", "exemplarily", "for example", etc. are used to indicate examples, illustrations or descriptions. Any embodiment or design described in this application as "in one embodiment", "exemplarily", "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "in one embodiment", "exemplarily", "for example", etc. is intended to present related concepts in a specific way.

[0094] See also Figure 1-Figure 3 , Figure 1 is a schematic diagram of the appearance structure of an existing tablet computer 1, Figure 2 yes Figure 1 The cross-sectional view at AA in the middle is as follows: Figure 3 for Figure 2 A partial enlarged view of point B in the middle.

[0095] The existing tablet computer 1 generally includes a screen cover 11, a display module 12, a metal shell 131 and a plastic frame 132. The metal shell 131 and the plastic frame 132 form a support frame 13 of the tablet computer 1. The screen cover 11 is supported on the plastic frame 132 and bonded to the plastic frame 132. The display module 12 is arranged on the inner side of the screen cover 11. The metal shell 131 is wrapped around the outer periphery of the plastic frame 132. The plastic frame 132 is used to support the display module 12 and other electrical components inside the tablet computer 1 ( Figure 2 not shown).

[0096] The screen cover 11 is mainly used to protect the display module 12 from wear and damage, etc., and avoid direct contact between the display module 12 and the user. The main purpose of the screen cover 11 is to extend the service life of the display module 12. The screen cover 11 is composed of multiple layers of material.

[0097] The display module 12 is mainly used to display images, texts and other contents or information to the user, and the display module 12 has a certain thickness. There are many types of display modules 12, such as liquid crystal display (LCD), organic light emitting diode display (OLED), micro light emitting diode display (Micro LED), mini light emitting diode display (Mini LED), etc.

[0098] The circumference size of the screen cover 11 is larger than the circumference size of the display module 12, see Figure 3 The area of ​​the screen cover 11 that protrudes from the display module 12 along the circumferential direction is adhered to the plastic frame 132 by means of colloid.

[0099] The metal shell 131 is usually made of aluminum alloy, and the material of the plastic frame 132 can be PC / ABS, which is a thermoplastic plastic made of polycarbonate and acrylonitrile-butadiene-styrene copolymer (ABS). The elastic modulus of the plastic frame 132 is relatively small. Therefore, the structure, rigidity and bending resistance of the existing support frame 13 are relatively poor.

[0100] In order to improve the rigidity of the tablet computer 1, a stainless steel bracket 15 is usually provided in the tablet computer 1. Figure 2 , schematically shows a stainless steel bracket 15, which is disposed on the plastic frame 132 and supports the display module 12. The stainless steel bracket 15 is disposed to enhance the rigidity of the tablet computer 1 and meet the bending resistance requirement.

[0101] The stainless steel bracket 15 takes up a certain amount of space. If the thickness of the tablet computer 1 is reduced, there will not be enough space to place the stainless steel bracket 15 or the height of the stainless steel bracket 15 along the thickness direction of the tablet computer 1 must be reduced, which will reduce the rigidity of the product. Therefore, the current structure of the support frame 13 of the tablet computer 1 will limit the tablet computer 1 from being designed in a thinner direction, which will affect the experience of the mobile electronic device.

[0102] For foldable devices (such as foldable phones), in order to reduce the thickness of the design, the battery compartment metal sheet is removed to reduce the thickness, such as using a high modulus aluminum alloy for the battery compartment to increase the yield strength. However, the improved bending resistance is still limited, which restricts the design of foldable devices to be thinner.

[0103] Based on the above problems, the present application provides a frame 14 suitable for a tablet computer. The frame 14 mainly adopts a structure of a shell 141 and a reinforcement 142. The reinforcement 142 is arranged in the space between the lap plate 1411, the frame and the bottom plate to form an installation area. The reinforcement 142 can increase the rigidity of the frame 14, so that the stainless steel bracket 15 placed in the tablet computer 1 can be eliminated, thereby achieving a thinner design for the tablet computer 1 while meeting the rigidity and bending resistance requirements of the tablet computer 1.

[0104] The framework 14 provided in this application is applied to products including but not limited to tablet computers 1, smart phones, desktop / laptop / handheld computers, notebook computers, etc.

[0105] The specific structure of the frame 14 will be described in detail below with reference to the accompanying drawings.

[0106] See also Figure 4-Figure 6 , Figure 4 A schematic diagram of the appearance structure of the tablet computer 1 provided in this embodiment, Figure 5 is a schematic diagram of the structure of the frame 14 provided in this embodiment, Figure 6 yes Figure 5 A partial enlarged view of point C in the middle.

[0107] The present embodiment provides a frame 14, including an outer shell 141 and a reinforcement body 142. The outer shell 141 includes a bottom plate 1414 and a frame 1413. The frame 1413 is arranged along the circumferential edge of the bottom plate 1414 so that the inner side of the frame 1413 forms a placement cavity. A lap plate 1411 is formed on the circumferential inner side surface of the frame 1413. The space between the lap plate 1411, the frame 1413 and the bottom plate 1414 forms an installation area. The height of the upper surface of the lap plate 1411 is lower than the height of the top surface of the frame 1413 to form a step. The step is used to support the screen cover 11. The reinforcement body 142 is arranged in at least part of the installation area.

[0108] See also Figure 5The housing 141 includes a bottom plate 1414 and a frame 1413. The frame 1413 is a square ring structure. The frame 1413 is arranged at the circumferential edge of the bottom plate 1414, that is, the bottom plate 1414 forms the bottom of the housing 141, and the frame 1413 forms the circumferential side of the housing 141. Preferably, the bottom plate 1414 and the frame 1413 are arranged as one body. A placement cavity is formed between the inner side of the frame 1413 and the bottom plate 1414, and the placement cavity is used to place components such as circuit boards and display modules. Figure 5 The arrow X is shown in FIG. Regarding the orientation, in this embodiment and the contents involved below, Figure 5 The direction indicated by the arrow X is the upward direction, the opposite direction of the arrow X is the downward direction, and the direction parallel to the arrow X is the thickness direction of the frame 14 .

[0109] See also Figure 6 A lap plate 1411 is formed on the inner circumferential side of the frame 1413, and a reinforcement body 142 is arranged on the lap plate 1411, the frame 1413 and the bottom plate 1414 to form an installation area. The design of the reinforcement body 142 not only does not affect the layout of the internal components of the product, but also increases the rigidity of the frame 14. In addition, the design of the lap plate 1411 on the inner circumferential side of the frame 1413 can not only support the screen cover 11, but also improve the rigidity of the frame 14.

[0110] The reinforcement body 142 is arranged on the lap plate 1411, the frame 1413 and the bottom plate 1414 to form an installation area, which makes it possible to increase the height of the reinforcement body 142 along the thickness direction of the frame 14, thereby making it possible to significantly improve the rigidity and bending resistance of the electronic device.

[0111] In the prior art, the stainless steel bracket 15 is arranged on the plastic frame 132, and the stainless steel bracket 15 is limited between the plastic frame 132 and the display module 12, and the height of the stainless steel bracket 15 along the thickness direction of the tablet computer is limited. Generally, the height of the stainless steel bracket 15 along the thickness direction is 1.8 mm to 2.2 mm. In this embodiment, the reinforcement 142 is arranged in the installation area of ​​the housing 141, and the height of the reinforcement 142 is not limited between the plastic frame and the display module, which provides a possibility for increasing the height of the reinforcement 142.

[0112] The frame provided in this embodiment can eliminate the stainless steel bracket 15 placed in the tablet computer 1, so as to realize the design of a thinner product while meeting the stiffness and bending resistance requirements of the tablet computer. That is, when the electronic device produced by using the frame 14 provided in this embodiment is compared with the existing electronic device produced by using the plastic frame 132+metal shell 131+stainless steel bracket 15, when the stiffness and bending resistance of the two electronic devices are similar, the size of the frame 14 provided in this embodiment along the thickness direction can be made smaller, which provides the possibility for thinning the product design, that is, the further thinning design of the product will not be limited due to the stiffness and bending resistance problems of the frame 14.

[0113] Preferably, the lap plate 1411 and the frame 1413 are integrally provided to facilitate processing and manufacturing.

[0114] See also Figure 6 The height of the lap plate 1411 is lower than the height of the top surface of the outer shell 141 so as to form a step for supporting the screen cover 11.

[0115] Specifically, a lap plate 1411 is formed on the circumferential inner side surface of the frame 1413 , and the lap plate 1411 can be set as an annular structure, or the frame 1413 can be a non-annular structure, that is, the lap plate 1411 is set on a partial section along the circumferential inner side surface of the frame 1413 .

[0116] Specifically, the material of the housing 141 is metal. The housing 141 made of metal not only makes the appearance of the electronic device have a metallic texture and a beautiful appearance, but also helps to improve the strength of the electronic device.

[0117] Specifically, the metal material of the housing 141 includes but is not limited to aluminum alloy, magnesium alloy, titanium alloy and various stainless steels.

[0118] The shell 141 can be made of aluminum alloy, which is an alloy with a certain amount of other alloying elements added to aluminum, and is one of the light metal materials. The aluminum alloy shell can not only improve the rigidity of the frame 14, but also help reduce the weight of the entire electronic device.

[0119] The shell 141 can also be made of magnesium alloy. Magnesium alloy is an alloy based on magnesium with other elements added. Its characteristics are: low density, high strength, large elastic modulus, good heat dissipation, good shock absorption, greater impact load resistance than aluminum alloy, and good resistance to corrosion by organic matter and alkali.

[0120] The shell 141 can also be made of titanium alloy. Titanium alloy refers to a variety of alloy metals made of titanium and other metals. Titanium alloy has high strength, good corrosion resistance and high heat resistance.

[0121] Specifically, the circumferential outer side wall of the screen cover 11 is arranged to fit with the circumferential inner side surface of the frame 1413 located above the lap plate 1411, so that a circle of gap line is formed between the outer shell 141 and the screen cover 11 to improve the appearance of the product.

[0122] See also Figure 3 The support frame 13 of the existing tablet computer 1 adopts a metal shell 131 + plastic frame 132 structure, resulting in a circle of gap lines 16 between the screen cover 11 and the plastic frame 132, and a circle of gap lines 16 between the metal shell 131 and the plastic frame 132, which has a certain impact on the appearance of the product.

[0123] Specifically, the reinforcement 142 is disposed in at least part of the installation area. That is, the distribution of the reinforcement 142 on the housing 141 is disposed according to the area where the electronic device is prone to bend. Of course, it is preferred that the reinforcement 142 is disposed in the entire installation area.

[0124] Specifically, the reinforcement 142 is a segmented structure or an integral structure. Considering the assembly of the shell 141 and the reinforcement 142, a segmented reinforcement 142 or an integral reinforcement 142 can be selected.

[0125] Specifically, the reinforcement body 142 can be fixed to the housing 141 so that the frame 14 can be assembled as a whole with other components of the electronic device.

[0126] Specifically, a hole is usually provided on the circumferential side surface of the housing 141 to pass a power button, a volume adjustment button, etc. of the electronic device, and an opening for cooperating with a camera is provided on the inner bottom surface of the housing 141 .

[0127] See also Figure 7 , which illustrates the relationship between the elastic modulus, yield strength and density of several materials.

[0128] In one embodiment, the elastic modulus of the reinforcement 142 is greater than the elastic modulus of the shell 141 , or the yield strength of the reinforcement 142 is greater than the yield strength of the shell 141 .

[0129] For the material of the reinforcement 142, selecting a material with a greater elastic modulus than the elastic modulus of the outer shell 141 or selecting a material with a greater yield strength than the yield strength of the outer shell is beneficial to improving the rigidity of the frame.

[0130] In one embodiment, the density of the reinforcement 142 is greater than or less than the density of the shell 141 .

[0131] The density of the reinforcement 142 is less than that of the shell 141, which can reduce the weight of the frame 14 and thus reduce the weight of the entire electronic device. Of course, the density of the reinforcement 142 can also be greater than that of the shell 141. Usually, the density is large and the elastic modulus or yield strength is relatively large. Although the weight of the product is heavy, the bending resistance of the frame 14 is improved, which is conducive to further thinning the product design.

[0132] Referring to Table 1, comparative examples illustrate the relationship between the elastic modulus, yield strength and density of several materials, wherein the mechanical parameter values ​​of each material given are approximate reference values.

[0133] Material <![CDATA[Density (g / cm 3 )]]> Elastic modulus(Gpa) Yield strength(MPa) steel 7.8 200 930 titanium 4.5 200 800 Cast Aluminum 3.4 70 260 aluminum 2.7 70 270 magnesium 1.8 45 230 lithium 1.4 42 160 Carbon Fiber 1.4 82.1 819 PPS 1.7 16.4 185 PC / ABS 1.3 4.5 70

[0134] See also Figure 7 , which more intuitively reflects the relationship between the elastic modulus and yield strength of the several materials cited as examples. The shell 141 is usually made of aluminum alloy (aluminum in Table 1), and the elastic modulus and yield strength of the aluminum alloy are about 70Gpa and about 270MPa, respectively. By comparison in the above table, the material of the reinforcement 142 can be selected from carbon fiber, titanium alloy (titanium in Table 1) or steel. In Table 1, the elastic modulus and yield strength of carbon fiber are about 82.1Gpa and about 819MPa, respectively, the elastic modulus and yield strength of titanium alloy are about 200Gpa and about 800MPa, respectively, and the elastic modulus and yield strength of steel are about 200Gpa and about 800MPa, respectively.

[0135] Carbon fiber is made of carbonized fiber treated with epoxy coating and pressed with graphite. Its advantages are light weight and high tensile strength. As shown in Table 1, the density of carbon fiber is small, with a density of 1.4g / cm 3 The density of aluminum alloy is about 2.7g / cm 3 ), so when the material of the reinforcement body 142 is carbon fiber, the weight of the frame 14 can be reduced, and then the weight of the entire electronic device can be reduced.

[0136] Titanium (titanium alloy) and steel have high densities, at 4.5 g / cm 3 Left and right and 7.8g / cm 3 However, the elastic modulus and yield strength of titanium alloy and steel are much greater than those of aluminum alloy. Therefore, when the material of the reinforcement 142 is titanium alloy or steel, the weight of the product is heavy, but due to the high elastic modulus and yield strength, it is conducive to further thinning the design of the product.

[0137] Preferably, the elastic modulus of the reinforcement 142 is greater than the elastic modulus of the shell 141 , and the yield strength of the reinforcement 142 is greater than the yield strength of the shell 141 . However, a material having an elastic modulus and a yield strength similar to those of the shell 141 may also be selected.

[0138] Based on the embodiment in which the elastic modulus of the reinforcement 142 is greater than the elastic modulus of the shell 141, the yield strength of the reinforcement 142 is greater than the yield strength of the shell 141, and the density of the reinforcement 142 is less than the density of the shell 141, in one embodiment, the reinforcement 142 is preferably a carbon fiber rolled tube, and the cross-sectional shape of the reinforcement is spiral.

[0139] Carbon fiber roll tubes are also called carbon tubes or carbon fiber tubes. They are made of carbon fiber composite materials pre-impregnated with styrene-based polyester resin and then heated, cured, and pulled (wrapped). During the manufacturing process, various profiles can be produced through different molds. The advantages of carbon fiber roll tubes are light weight and high tensile strength.

[0140] The cross-sectional shape of the reinforcement body is spiral, which is beneficial to improving the overall strength of the reinforcement body 142 , and further, is beneficial to improving the bending resistance of the frame 14 .

[0141] Preferably, the outer contour of the cross section of the carbon fiber rolled tube is rectangular.

[0142] See also Figure 8-Figure 12 , Figure 8 It is a top view schematic diagram of the framework; Fig. 9 yes Figure 8 DD section diagram; Fig.10 yes Fig. 9 A partial enlarged view of point E in the middle; Fig.11 It is a partial schematic diagram of the screen cover 11 supported on the lap plate 1411.

[0143] In one embodiment, one end of the reinforcement body 142 contacts the bottom plate 1414 , and the other end of the reinforcement body 142 opposite to the bottom plate 1414 contacts the lap plate 1411 , so as to support the lap plate 1411 .

[0144] In this embodiment, see Fig.11 The bottom of the reinforcement body 142 contacts the bottom plate 1414 , and the top of the reinforcement body 142 contacts the lower side of the lap plate 1411 . The reinforcement body 142 can support the lap plate 1411 so as to improve the strength of the supporting screen cover 11 .

[0145] In this embodiment, an installation area for installing the reinforcement 142 is formed below the lap plate 1411. The size of the cross section of the reinforcement 142 is reasonably set according to the size of the space below the lap plate 1411. Generally, the larger the cross section area of ​​the reinforcement 142, the stronger the rigidity and bending resistance of the frame 14.

[0146] In this embodiment, it is preferred that the side of the reinforcement body 142 close to the inner circumferential side of the frame 1413 is in contact with the frame 1413 to reasonably utilize the space of the installation area below the lap plate 1411 .

[0147] In this embodiment, the cross-section of the reinforcement 142 is preferably rectangular, the lower side of the lap plate 1411 is a plane, and the area of ​​the bottom plate 1414 supporting the reinforcement 142 is a plane to better match the reinforcement 142 .

[0148] See also Fig.11 , indicating the step formed between the frame 1413 and the lap plate 1411. The circumferential edge of the screen cover 11 is designed to fit the frame 1413, and only a circle of gap line 16 is formed between the frame 14 and the screen cover 11, which improves the appearance of the product.

[0149] On the premise that the reinforcement 142 supports the lap plate 1411, in one embodiment, the height h1 of the reinforcement 142 along the first direction is not less than 3 / 5 of the height h of the entire electronic device along the first direction, and the first direction is the thickness direction of the electronic device.

[0150] See also Figure 5 , arrow X is the thickness direction of the frame 14, that is, the thickness direction of the electronic device.

[0151] Generally, the elastic modulus and yield strength of the reinforcement 142 are greater than the elastic modulus and yield strength of the housing 141, that is, the elastic modulus and yield strength of the reinforcement 142 are greater than the elastic modulus and yield strength of the lap plate 1411, therefore, the height of the lap plate 1411 along the thickness direction of the frame 14 and the height of the reinforcement 142 along the thickness direction should be reasonably set. In theory, the greater the height of the reinforcement 142, the better, which is conducive to improving the rigidity of the entire frame 14. However, since the lap plate 1411 is required to support the screen cover 11, the lap plate 1411 also needs to have a certain thickness.

[0152] In this embodiment, the height h1 of the reinforcement body 142 along the first direction is set to be no less than 3 / 5 of the height h of the electronic device along the first direction to improve the rigidity of the frame 14 and avoid further thinning of the product due to the rigidity and bending resistance of the frame 14.

[0153] Preferably, see Fig.11 , indicating the height h2 of the lap plate 1411. The height h2 of the lap plate 1411 is not less than 0.4 mm to ensure sufficient supporting strength of the lap plate 1411.

[0154] In this embodiment, see Fig.11, the width of the lap plate 1411 in the horizontal direction is b1. As for the width value b1 of the lap plate 1411, since the lap plate 1411 supports the screen cover 11, the setting of the b1 value needs to refer to the parameters of the screen cover 11. There is a black screen border on the circumferential edge of the screen cover 11, see Fig.11 , indicating the width value b of the black border of the screen. In order to avoid affecting the display area of ​​the electronic device, the width value b1 of the lap board 1411 should be smaller than the width value b of the black border of the screen. Specifically, the width value b1 of the lap board 1411 ≈ the width value b of the black border of the screen - 0.7 mm.

[0155] In this embodiment, the reinforcement 142 may be arranged to protrude horizontally from the free end of the lap plate 1411; or, the reinforcement 142 may be arranged to be flush with the free end of the lap plate 1411; or, the free end of the lap plate 1411 may be arranged to protrude from the side of the reinforcement 142 away from the circumferential side of the shell 141.

[0156] See also Fig.11 , the width of the reinforcement 142 in the horizontal direction is b2. The larger the width b2 of the reinforcement 142 is, the greater the rigidity of the frame 14 is. Therefore, it is preferred to increase the b2 value of the reinforcement 142 as much as possible without interfering with other components inside the electronic device.

[0157] See also Fig.11 , the figure shows that the free end of the lap plate 1411 protrudes from the side of the reinforcement body 142 away from the circumferential side of the shell 141, that is, b2 is smaller than b1.

[0158] In the following, the calculation of stiffness is used to illustrate that the bending stiffness of the frame 14 provided in this embodiment can be significantly improved compared with the prior art.

[0159] The calculation formula for stiffness is:

[0160]

[0161] Among them, E is the elastic modulus, L is the distance between the two supporting rollers in the bending test, b is the value in the horizontal direction of the cross section, and h is the value in the height direction of the cross section.

[0162] When the tablet computer provided with the frame 14 provided in this embodiment is placed on the support roller 2 with the screen cover 11 facing upward (the housing 141 is supported on the support roller), the cross-sectional view thereof is as follows: Fig.13 shown.

[0163] Wherein, assuming that the thickness of the shell is h3, the elastic modulus of the reinforcement 142 is E2, and the elastic modulus of the shell 141 is E1, the stiffness provided by the reinforcement 142 and the lap plate 1411 are respectively:

[0164]

[0165]

[0166] The reinforcement 142 has a large elastic modulus E2 value, which can provide a large rigidity. In addition, in the formula, the height h2 is a cubic relationship, that is, the reinforcement 142 provides a higher rigidity as the height increases.

[0167] When the electronic device produced by using the frame 14 provided in this embodiment is set to the same thickness (for example, 5mm) as the electronic device produced by the existing structure of plastic frame 132+metal shell 131+stainless steel bracket 15, since the stainless steel bracket 15 is set on the plastic frame 132, the stainless steel bracket 15 is restricted between the plastic frame 132 and the display module 12, and the height of the stainless steel bracket 15 along the thickness direction can usually only be designed to be 1.8mm~2.2mm. In this embodiment, the reinforcement body 142 is set on the circumferential inner side of the shell 141. The setting position of the reinforcement body 142 can make its height reach 3mm, thereby providing higher rigidity.

[0168] Not only the reinforcement 142 can provide rigidity, but the design of the lap plate 1411 also increases the rigidity of the frame 14. In addition, since the lap plate 1411 is away from the bending center line L in the height direction, the rigidity provided by the lap plate 1411 is also increased.

[0169] See also Fig.12 , Fig.12 It is a partial schematic diagram of the free end of the lap plate 1411 forming a limiting portion 1412 .

[0170] In one embodiment, the free end of the lap plate 1411 extends vertically downward to form a limiting portion 1412 , and the reinforcement body 142 is limited between the limiting portion 1412 and the circumferential inner side surface of the frame 1413 .

[0171] See also Fig.12 The reinforcing body 142 is limited between the limiting portion 1412 and the circumferential inner side surface of the frame 1413. In this embodiment, it is preferred that no colloid is provided between the reinforcing body 142 and the outer shell 141.

[0172] Specifically, the limiting portion 1412 may be provided to squeeze the reinforcement 142, so that the reinforcement 142 is squeezed onto the housing 141. Alternatively, only the limiting portion 1412 is provided to fit the reinforcement 142, in which case the limiting portion 1412 limits the reinforcement 142 from moving in the horizontal direction away from the frame 1413, and limits the movement of the reinforcement 142 in the length extension direction, which may be limited by the shape of the reinforcement 142 and the circumferential inner side of the frame 1413.

[0173] In this embodiment, the reinforcement 142 may be a ring-shaped structure, or the reinforcement 142 may be a non-ring-shaped structure.

[0174] In this embodiment, by providing the limiting portion 1412 , the rigidity of the frame 14 can also be improved.

[0175] In one embodiment, the reinforcement 142 is fixed to the housing 141 by adhesive bonding.

[0176] Since the thickness of the outer shell 141 is relatively thin, it is not suitable to use a connecting piece (such as a screw, etc.) to fix the reinforcing body 142 on the outer shell 141. Therefore, in order to fix the reinforcing body 142 on the outer shell 141, a sample colloid can be used for fixing.

[0177] Specifically, when the material of the reinforcement 142 is carbon fiber, the colloid may be epoxy resin glue or polyurethane glue. From the perspective of high strength, high viscosity and temperature resistance, epoxy resin glue and polyurethane glue are very suitable for bonding carbon fiber and metal materials.

[0178] In this embodiment, a colloid may be provided between the lap plate 1411 and the reinforcement 142 and / or between the reinforcement 142 and the bottom plate 1414 and / or between the reinforcement 142 and the frame 1413 to fix the reinforcement 142 on the housing 141 .

[0179] In addition, no colloid may be provided between the reinforcement 142 and the outer shell 141. For example, when the reinforcement 142 is in an annular structure, the reinforcement 142 can be limited on the outer shell 141 by the shape of the reinforcement 142 and the shape of the outer shell 141. In order to further strengthen the connection between the reinforcement 142 and the outer shell 141, the size of the reinforcement 142 can be set so that the reinforcement 142 fits tightly on the outer shell 141 to fix the reinforcement 142 on the outer shell 141.

[0180] See also Fig.14 , a processing and manufacturing method of a frame 14 is provided, the specific contents are as follows:

[0181] Step 1, see Fig.14 In (a), the circumferential edge of the selected material is bent upward by 70°, and ribs are added to the inner bending part to push the material to the outside of the arc and reduce the radius of the outer arc.

[0182] The metal material with a thickness of 1.00 mm is selected, and the metal material is a 5 series / 6 series high elongation aluminum alloy or stainless steel. In addition, the outer arc refers to the arc between the bottom surface of the material and the circumferential outer side surface.

[0183] Step 2, see Fig.14In (b), the material processed in step 1 is bent 90°, and ribs are made on the inner bending part (staggered with the pre-bending line in step 1), pushing the material to the outside of the arc to further reduce the radius of the outer arc. The outer arc radius of the 1.0mm thick material shell is 0.6mm, and after grinding, it is within 0.5mm.

[0184] Step 3, see Fig.14 In (c), the material processed in step 2 is peeled, the top of the peeled material is adjusted to the designed height around the material, and the height around the material should be uniform and consistent.

[0185] Step 4, see Fig.14 In (d), the material processed in step 3 is squeezed back downward, the top material is squeezed to the root, and the radius of the outer arc is further reduced.

[0186] Step 5, see Fig.14 In (e), the material processed in step 4 is subjected to shrinkage bending, a rib is set on the inner side, and the upper die slider on the outer side pushes the material to shrink the opening, the horizontal angle reaches 165°, and the material is bent to an outer arc with an outer diameter of 1.2 mm.

[0187] The outer arc in this step refers to the arc between the area where the top bends inwardly and the circumferential outer side of the material. The area where the top bends inwardly is used to form the lap plate 1411 later.

[0188] Step 6, see Fig.14 In (f), the material processed in step 5 is subjected to the first extrusion. The inner slider and the lower die are clamped inside and outside, the material is extruded in the Z direction (vertical direction), the bending zone is moved down by 0.6mm, and the radius of the outer arc (the arc between the bending zone and the circumferential outer side of the material) is reduced to 0.6mm.

[0189] Among them, the area where the top bends inward is called the bending zone.

[0190] Step 7, see Fig.14 In (g), the material processed in step six is ​​subjected to a second extrusion, the inner slider and the lower die are clamped inside and outside, the material is extruded in the Z direction (vertical direction), and the horizontal angle of the bending zone reaches 180°.

[0191] Step 8, see Fig.14 In (h), a high modulus reinforcement 142 is implanted and fixed with colloid.

[0192] Step 9, see Fig.14 In step (i), the rough blank in step eight is finely processed by a CNC machine tool to form a finished frame 14.

[0193] The above method uses a material with a thickness of 1.0 mm. If materials of other thicknesses are selected, data such as the rib size, outer arc angle, and downward pressure during pier extrusion need to be adjusted accordingly as the material thickness changes.

[0194] See also Fig.15 , is a schematic diagram of the structure of the shell 141, which illustrates the long frame segment 14131, the short frame segment 14132 and the arc frame segment 14133 of the shell 141.

[0195] In one embodiment, the frame 1413 includes relatively parallel long frame segments 14131 and relatively parallel short frame segments 14132 , and the reinforcement bodies 142 are correspondingly disposed on at least two relatively parallel long frame segments 14131 .

[0196] Since the length of the long frame segment 14131 is greater than that of the short frame segment 14132 , bending is relatively easy to occur on the long frame segment 14131 . Therefore, this embodiment considers providing a reinforcement body 142 at least corresponding to the long frame segment 14131 of the housing 141 .

[0197] Specifically, see Fig.15 , the long frame segment 14131 and the short frame segment 14132 are connected by the arc frame segment 14133. The reinforcement body 142 can be arranged correspondingly over the entire length of the long frame segment 14131, or the length of the reinforcement body 142 can be less than the length of the entire long frame segment 14131 and located in the middle area of ​​the long frame segment 14131. The materials of the reinforcement bodies 142 on the two long frame segments 14131 can be set to be the same or different.

[0198] Preferably, the reinforcement bodies 142 are not only arranged on the two relatively parallel long frame segments 14131 , but also arranged on the two relatively parallel short frame segments 14132 to further improve the bending resistance of the frame 14 .

[0199] The reinforcement bodies 142 may be provided on two relatively parallel long frame segments 14131 and two relatively parallel short frame segments 14132, i.e., the reinforcement bodies 142 are not provided on the arc frame segments 14133. The materials of the reinforcement bodies 142 on the long frame segments 14131 and the reinforcement bodies 142 on the short frame segments 14132 may be the same or different.

[0200] Regarding the reinforcement 142 on the short frame segment 14132, the reinforcement 142 can be set along the entire length of the short frame segment 14132, or the reinforcement 142 on the short frame segment 14132 can have a length less than the length of the entire short frame segment 14132 and be located in the middle area of ​​the short frame segment 14132.

[0201] Preferably, the long frame segment 14131, the short frame segment 14132 and the arc frame segment 14133 of the housing 141 are correspondingly provided with a reinforcement body 142 to improve the bending resistance of the frame 14. The material of the reinforcement body 142 on the arc frame segment 14133 can be set to be the same as the material of the reinforcement body 142 on the long frame segment 14131 and the short frame segment 14132, or the material of the reinforcement body 142 on the arc frame segment 14133 is different from the material of the reinforcement body 142 on the long frame segment 14131 and the short frame segment 14132.

[0202] In one embodiment, the frame 1413 includes relatively parallel long frame segments 14131 and relatively parallel short frame segments 14132, and adjacent long frame segments 14131 and short frame segments 14132 are connected by arc frame segments 14133. The lap plate 1411 is an annular structure, that is, the lap plate 1411 is formed on the inner side surfaces of two relatively long frame segments 14131, the lap plate 1411 is formed on the inner side surfaces of two relatively parallel short frame segments 14132, and the lap plate 1411 is formed on the inner side surfaces of each arc frame segment 14133, so that the lap plate 1411 is an annular structure.

[0203] Of course, it can also be configured such that the lap plate 1411 is only provided on the inner side surfaces of two opposite long frame segments 14131 , or the lap plate 1411 is provided on the inner side surfaces of two opposite long frame segments 14131 and the inner side surfaces of two relatively parallel short frame segments 14132 .

[0204] See also Fig.16 and Fig.17 , Fig.16 is a schematic diagram of the structure of the reinforcement body 142, Fig.17 It is a schematic diagram of the explosion of the reinforcement body 142.

[0205] In one embodiment, the reinforcement body 142 includes more than two reinforcement sub-bodies 1421 , and the reinforcement sub-bodies 1421 cooperate with each other end to end to form a ring structure.

[0206] Combination Fig.14 In the description of the method, in step five, step six and step seven, the top of the material is first bent, and in step eight, the reinforcement body 142 is then arranged. Therefore, in order to facilitate the assembly of the reinforcement body 142 and the shell 141, as well as the processing and manufacturing of the reinforcement body 142, the reinforcement body 142 adopts a split structure, that is, the reinforcement body 142 includes more than two reinforcement split bodies 1421. The head and tail of each reinforcement split body 1421 cooperate with each other to form a ring structure, that is, the reinforcement body 142 is arranged on the entire area of ​​the inner side of the shell 141 to improve the bending resistance of the frame 14.

[0207] In this embodiment, the reinforcing sub-bodies 1421 cooperate with each other end to end, that is, two adjacent reinforcing sub-bodies 1421 can be connected or can be set to be disconnected. Of course, it is preferred to connect two adjacent reinforcing sub-bodies 1421 to improve the bending resistance of the frame 14.

[0208] When two adjacent reinforcing sub-bodies 1421 are configured to be connectable, it is preferred that colloid is used to connect the two adjacent reinforcing sub-bodies 1421, or the two adjacent reinforcing sub-bodies 1421 can be connected in a tight fit manner.

[0209] See also Fig.16 and Fig.17 Preferably, the number of reinforcing sub-bodies 1421 is set to four, and the four reinforcing sub-bodies 1421 are respectively the first reinforcing sub-bodies 1424, the second reinforcing sub-bodies 1425, the third reinforcing sub-bodies 1426 and the fourth reinforcing sub-bodies 1427. The first reinforcing sub-bodies 1424 and the second reinforcing sub-bodies 1425 are arranged opposite to each other, and the third reinforcing sub-bodies 1426 and the fourth reinforcing sub-bodies 1427 are arranged opposite to each other. The first reinforcing sub-bodies 1424 and the second reinforcing sub-bodies 1425 are U-shaped, and the third reinforcing sub-bodies 1426 and the fourth reinforcing sub-bodies 1427 are strip-shaped.

[0210] During installation, the first reinforcing sub-body 1424 and the second reinforcing sub-body 1425 are disposed on two opposite side frames of the housing 141, and then the third reinforcing sub-body 1426 and the fourth reinforcing sub-body 1427 are disposed on two opposite side frames.

[0211] Specifically, the first reinforcing split body 1424 and the second reinforcing split body 1425 correspond to the long frame segment 14131 and the two arc-shaped frame segments 14133 of the housing 141, and the third reinforcing split body 1426 and the fourth reinforcing split body 1427 correspond to the short frame segment 14132 of the housing 141. Alternatively, the first reinforcing split body 1424 and the second reinforcing split body 1425 correspond to the short frame segment 14132 and the two arc-shaped frame segments 14133 of the housing 141, and the third reinforcing split body 1426 and the fourth reinforcing split body 1427 correspond to the long frame segment 14131 of the housing 141.

[0212] Fig.14 In the description of the method, the top of the material is first bent in step five, step six and step seven, and then the reinforcement 142 is set in step eight. If the processing method is changed to first set the reinforcement 142 and then bend the top of the material, the installation of the reinforcement 142 is not limited by the lap plate 1411. In this case, the reinforcement 142 can be set as an integrated structure to facilitate the rapid installation of the reinforcement 142; of course, the reinforcement 142 can also be set as a split structure, for example, the reinforcement 142 includes two reinforcement splits 1421.

[0213] See also Fig.18 and Fig.19 , Fig.18 yes Fig.16 A partial enlarged view of the F point in the middle. Fig.19 yes Fig.17 A partial enlarged view of the G in the middle. Fig.18 and Fig.19 The connection relationship between two adjacent reinforcement sub-bodies 1421 is schematically shown.

[0214] In one embodiment, a protrusion 1422 is disposed at the end of one of two adjacent reinforcing parts 1421 , and a groove 1423 is disposed at the end of the other one of the two adjacent reinforcing parts 1421 . The protrusion 1422 is inserted into the groove 1423 to form a mortise and tenon joint structure.

[0215] By providing the above-mentioned matching structure, the matching area between adjacent reinforcing sub-bodies 1421 can be increased. When two adjacent reinforcing sub-bodies 1421 are bonded by colloid, the connection strength of the two adjacent reinforcing sub-bodies 1421 is improved due to the increased bonding area between the two adjacent reinforcing sub-bodies 1421.

[0216] By setting the above-mentioned matching structure, when a tight fit between adjacent reinforcing parts 1421 is required to achieve a fixed connection, the sizes of the protrusion 1422 and the groove 1423 can be set so that the protrusion 1422 can be inserted into the groove 1423 to achieve a plug-in fixed connection.

[0217] The protrusion 1422 and the groove 1423 may be inserted in two directions: one is inserted vertically (in the thickness direction) from top to bottom, and the other is inserted horizontally upward.

[0218] For the insertion from top to bottom in the vertical direction, the grooves 1423 are connected to each other along the height direction of the reinforcement body 142, so that the protrusions 1422 are inserted into the grooves 1423 along the direction guided from the top.

[0219] Fig.14 As described in the method, in steps five, six and seven, the top of the material is first bent, and in step eight, the reinforcement body 142 is set. If the processing method is changed to first setting the reinforcement body 142 and then bending the top of the material, at this time, the insertion direction of the protrusion 1422 and the groove 1423 can be set to be inserted from top to bottom along the vertical direction (thickness direction).

[0220] For horizontal insertion, see Fig.18 and Fig.19 , illustrating the insertion along the horizontal upward direction. Fig.14As described in the method, in steps five, six and seven, the top of the material is first bent, and in step eight, the reinforcement body 142 is set. In this method, the plugging direction of the protrusion 1422 and the groove 1423 can be set along the horizontal direction.

[0221] For the shapes of the protrusion 1422 and the groove 1423, see Fig.18 and Fig.19 The groove 1423 can be set to a rectangular shape. Of course, the shape of the groove 1423 is not limited to a rectangular shape, and can also be an arc shape, etc.

[0222] Specifically, considering that the cross-sectional size of the reinforcing sub-bodies 1421 is relatively small, a matching structure of a protrusion 1422 and a groove 1423 is provided between two adjacent reinforcing sub-bodies 1421, and it is not necessary to provide two or more matching structures of protrusions 1422 and grooves 1423.

[0223] In this embodiment, when there are four reinforcing sub-bodies 1421 and the four reinforcing sub-bodies 1421 are respectively the first reinforcing sub-bodies 1424, the second reinforcing sub-bodies 1425, the third reinforcing sub-bodies 1426 and the fourth reinforcing sub-bodies 1427, grooves 1423 may be provided at both free ends of the first reinforcing sub-bodies 1424 and the second reinforcing sub-bodies 1425, and protrusions 1422 may be provided at both free ends of the third reinforcing sub-bodies 1426 and the fourth reinforcing sub-bodies 1427; or, protrusions 1422 may be provided at both free ends of the first reinforcing sub-bodies 1424 and the second reinforcing sub-bodies 1425, and grooves 1423 may be provided at both free ends of the third reinforcing sub-bodies 1426 and the fourth reinforcing sub-bodies 1427. That is, the shapes of the first reinforcing sub-bodies 1424 and the second reinforcing sub-bodies 1425 are completely the same, and the shapes of the third reinforcing sub-bodies 1426 and the fourth reinforcing sub-bodies 1427 are completely the same. Of course, the grooves 1423 and the protrusions may be respectively provided at the two free ends of the first reinforcing sub-body 1424 and the second reinforcing sub-body 1425 , and the grooves 1423 and the protrusions may be respectively provided at the two free ends of the third reinforcing sub-body 1426 and the fourth reinforcing sub-body 1427 .

[0224] Based on an embodiment in which a protrusion 1422 is provided on the end of one of two adjacent reinforcing sub-bodies 1421 and a groove 1423 is provided on the end of the other one, in one embodiment, a through hole is formed at the position where the two adjacent reinforcing sub-bodies 1421 are inserted into each other, and glue is injected in the through hole to form a pin structure connecting the two adjacent reinforcing sub-bodies 1421.

[0225] Specifically, see Fig.18 and Fig.19A first through hole 1428 is provided on the protrusion 1422, and one end of the reinforcing split body 1421 where the groove 1423 is provided is the groove end, and a second through hole 1429 and a third through hole (not shown in the figure) are provided on the groove end, and the second through hole 1429 and the third through hole are provided on both sides of the first through hole 1428, and the second through hole 1429 and the third through hole are both connected to the first through hole 1428, and glue (not shown in the figure) is provided on the first through hole 1428, the second through hole 1429 and the third through hole to form a pin structure connecting the protrusion 1422 and the groove end.

[0226] In this embodiment, through holes are formed at the locations where two adjacent reinforcing sub-bodies 1421 are inserted into each other, so that when glue is injected into the reinforcing body 142 so that the reinforcing body 142 is connected to the inner side of the shell 141, the through holes (including the first through hole 1428, the second through hole 1429 and the third through hole) are also filled with glue, so that when the glue is cured, the glue in the through holes forms pins, further strengthening the connection between the two adjacent reinforcing sub-bodies 1421.

[0227] See also Figure 20-22 , Fig. 20 This is a top view of a tablet computer. Fig.21 yes Fig. 20 Schematic diagram of the cross section in the HH direction, Fig. 22 yes Fig. 20 A partial enlarged view of point I in the middle.

[0228] This embodiment provides an electronic device, including a screen cover 11, a display module 12 and a frame 14 as in any of the above embodiments, wherein the display module 12 and the screen cover 11 are stacked, and the display module 12 is arranged on the side of the screen cover 11 facing the base plate 1414, and the screen cover 11 is supported on the step of the lap plate 1411.

[0229] Electronic devices include, but are not limited to, handheld devices, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem. For example, electronic devices may include smart watches, smart wristbands, smartphones, personal digital assistants (PDA) computers, tablet computers, laptop computers, vehicle-mounted computers, smart glasses, and other electronic devices with frames that require a thin design.

[0230] Specifically, when the electronic device is a tablet computer 1, see Fig. 20, illustrating the positional relationship between the screen cover 11, the display module 12 and the frame 14. Through the design of the frame 14 structure, the stainless steel bracket placed in the tablet computer 1 can be eliminated, so that the design of the tablet computer can be thinned while meeting the strength and bending resistance requirements of the tablet computer.

[0231] Specifically, when the electronic device is a mobile phone, the frame 14 is used as the middle frame of the mobile phone. At this time, the mobile phone can also be a folding screen mobile phone.

[0232] In one embodiment, the outer surface of the housing 141 is used to form an exterior surface.

[0233] That is, the circumferential outer side wall of the screen cover 11 fits with the circumferential inner side surface of the frame 1413 located above the lap plate 1411, so that the outer surface of the shell 141 is used to form an appearance surface to improve the appearance of the product.

[0234] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A framework, characterized in that: include: A housing, the housing comprising a bottom plate and a frame, the frame being arranged along the circumferential edge of the bottom plate so that the inner side of the frame encloses a placement cavity, a lap plate is formed on the circumferential inner side of the frame, the space between the lap plate, the frame and the bottom plate forms a mounting area, the height of the upper surface of the lap plate is lower than the height of the top surface of the frame to form a step, and the step is used to support the screen cover; A reinforcement body is disposed in at least a portion of the installation area.

2. The frame according to claim 1, characterized in that One end of the reinforcement body contacts the bottom plate, and the other end of the reinforcement body opposite to the bottom plate contacts the lap plate.

3. The frame according to claim 2, characterized in that The height h1 of the reinforcement along the first direction is not less than 3 / 5 of the height h of the entire electronic device along the first direction, and the first direction is the thickness direction of the electronic device.

4. The frame according to claim 1, characterized in that The free end of the lap plate extends vertically downward to form a limiting portion, and the reinforcing body is limited between the frame and the limiting portion.

5. The frame according to claim 1, characterized in that The frame includes a long frame segment, a short frame segment and an arc-shaped frame segment. The two long frame segments are arranged in parallel with each other, the two short frame segments are arranged in parallel with each other, the arc-shaped frame segment connects the adjacent long frame segments and the short frame segments, and at least two of the long frame segments are correspondingly provided with the reinforcement body.

6. The frame according to claim 1, characterized in that The reinforcement body includes more than two reinforcement sub-bodies, and two adjacent reinforcement sub-bodies are connected or in contact with each other so that the reinforcement body has a ring structure.

7. The frame according to claim 6, characterized in that One of the two adjacent reinforcing sub-bodies is provided with a protruding portion at its end, and the other of the two adjacent reinforcing sub-bodies is provided with a groove at its end, and the protruding portion is inserted into the groove.

8. The frame according to claim 7, characterized in that A through hole is formed at the position where two adjacent reinforcing sub-bodies are plugged into each other, and glue is injected in the through hole to form a pin structure connecting the two adjacent reinforcing sub-bodies.

9. The frame according to claim 6, characterized in that The number of the reinforcing sub-bodies is four, and the four reinforcing sub-bodies are respectively a first reinforcing sub-bodies, a second reinforcing sub-bodies, a third reinforcing sub-bodies and a fourth reinforcing sub-bodies. The first reinforcing sub-bodies and the second reinforcing sub-bodies are arranged opposite to each other, the third reinforcing sub-bodies and the fourth reinforcing sub-bodies are arranged opposite to each other, the first reinforcing sub-bodies and the second reinforcing sub-bodies are U-shaped, and the third reinforcing sub-bodies and the fourth reinforcing sub-bodies are strip-shaped.

10. A frame according to any one of claims 1 to 9, characterized in that The reinforcing body is bonded to the shell through colloid.

11. A frame according to any one of claims 1 to 9, characterized in that The reinforcement satisfies: the elastic modulus of the reinforcement is greater than the elastic modulus of the shell or the yield strength of the reinforcement is greater than the yield strength of the shell.

12. A frame according to any one of claims 1 to 9, characterized in that The density of the reinforcement is greater than or less than the density of the shell.

13. A frame according to any one of claims 1 to 9, characterized in that The material of the reinforcement is carbon fiber, titanium alloy or steel.

14. A frame according to any one of claims 1 to 9, characterized in that The reinforcement is a carbon fiber rolled tube and the cross-section of the reinforcement is spiral.

15. The frame according to claim 11, characterized in that The material of the shell is metal.

16. The frame according to claim 15, characterized in that The material of the shell is aluminum alloy, magnesium alloy or titanium alloy.

17. A frame according to any one of claims 1 to 9, characterized in that The placement cavity is used for placing a circuit board and a display module.

18. An electronic device, characterized in that: Comprising a screen cover, a display module and a frame as described in any one of claims 1 to 17; The display module and the screen cover are stacked, and the display module is arranged on a side of the cover facing the base plate, and the screen cover is supported on the step of the lap plate.

19. The electronic device according to claim 18, characterized in that: The outer surface of the housing is used to form an exterior appearance.

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