CN219420814U - Cover body and electronic equipment - Google Patents

Abstract

The application provides a lid and electronic equipment, the lid includes first face and second face, and connects one or more lateral walls between first face and second face. One side wall comprises a first part, a second part, a third part and a guide part; the first portion includes a first end and a second end, the first end being coupled to the first face. The second portion is spaced apart from the first portion along the first direction and is connected to the second face. The third part is located between the first part and the second part, and the third part includes third end and fourth end, and the fourth end is connected in the second part, and third end and second end are along first direction interval setting, and the third end is located the inboard of second end. One end of the guide part is connected to the second end, the other end of the guide part is connected to the third end, the guide part has a guide effect, can guide the cover body to slide relative to the middle frame, can solve the problem of lapping, avoids the need of taking down the cover body and reinstalling, and improves the assembly efficiency.

Description

Cover body and electronic equipment

Technical Field

The present disclosure relates to the field of electronic devices, and in particular, to a cover and an electronic device.

Background

In the related art, the mobile phone rear cover is usually adhered to one side of the middle frame, deviating from the display screen, a gap exists between the outer contour of the rear cover and the inner contour of the middle frame, in order to ensure that a user obtains better use handfeel and improve the appearance of the electronic equipment, the design gap between the rear cover and the middle frame is very small, then the rear cover is required to be assembled with higher assembly precision, the operability requirement on an installer is higher, the assembly operability of the rear cover is difficult to control in actual assembly, the situation that the rear cover and the middle frame are not aligned to cause the rear cover and the middle frame to be assembled in place in the assembly process is easy to occur, the posture of the rear cover needs to be adjusted repeatedly, and the installation efficiency of the rear cover is influenced.

Disclosure of Invention

The application provides a lid and electronic equipment to solve the problem that lid assembly efficiency is low behind the current cell-phone.

In a first aspect, the present application provides a cover, applied to an electronic device, where the electronic device includes a middle frame, and the cover is configured to be connected to the middle frame; the cover body comprises a first surface and a second surface which are oppositely arranged along a first direction, and one or more side walls connected between the first surface and the second surface, wherein the second surface is used for being connected with the middle frame; one of the side walls comprises:

a first portion comprising a first end and a second end, the first end being attached to the first face;

a second portion disposed spaced apart from the first portion along the first direction and connected to the second face;

a third portion located between the first portion and the second portion, the third portion including a third end and a fourth end, the fourth end being connected to the second portion, the third end being spaced from the second end along the first direction, and the third end being located inboard of the second end; and

And one end of the guide part is connected with the second end, and the other end of the guide part is connected with the third end.

In a second aspect, the present application further provides an electronic device, including a middle frame and a cover as described above, where the cover is connected to the middle frame.

The third part of the cover body is positioned between the first part and the second part, the third end of the third part and the second end of the first part are arranged at intervals along the first direction, and the third end is positioned at the inner side of the second end, so that a notch facing the inner side of the cover body can be formed by the first part, the second part and the third part; when the one end of guiding portion is connected with the second end of first part, the other end of guiding portion is connected with the third end of third part, and the guiding portion is located between third part and the first part promptly, and the guiding portion has the guiding action, exerts less effort to the lid during the assembly for the guiding portion can guide lid and center produce relative slip, can solve the overlap problem, avoids taking down the lid and install again, thereby promotes assembly efficiency.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a first schematic diagram of an electronic device according to an embodiment of the present application.

Fig. 2 is a second schematic diagram of an electronic device according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a cover of an electronic device according to an embodiment of the present application.

Fig. 4 is a schematic view illustrating a part of assembly of a cover and a middle frame of an electronic device.

Fig. 5 is a partial enlarged view at a in fig. 3.

Fig. 6 is a schematic cross-sectional view of a portion of a cover body contacting a middle frame according to an embodiment of the present application.

Fig. 7 is a schematic partial cross-sectional view of a cover according to an embodiment of the present application.

Fig. 8 is a schematic partial cross-sectional view of an embodiment of the present application before the cover is formed into a guide.

Fig. 9 is a force diagram of the cover contacting the middle frame according to an embodiment of the present application.

Fig. 10 is a top view of a cover according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to fig. 1 to 10 in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

The embodiment of the application provides electronic equipment. In particular, the electronic device may be an end product or device having a display function, such as a cell phone, tablet computer, electronic book, display, etc. In order to better understand the electronic device of the present application, an electronic device will be described below as an example of a mobile phone.

Referring to fig. 1 and fig. 2, fig. 1 is a first schematic diagram of an electronic device provided in an embodiment of the present application, and fig. 2 is a second schematic diagram of the electronic device in the embodiment of the present application. The electronic device 10 includes a housing 100, a display 200, a motherboard 300, and the like.

The display screen 200 is disposed on the housing 100 to form a display surface of the electronic device 10, and is used for displaying information such as images and texts. The display screen 200 may include a liquid crystal display (Liquid Crystal Display, LCD) or an Organic Light-Emitting Diode (OLED) display, or the like.

The main board 300 is disposed inside the housing 100. One or more of the functional components of the processor, the earphone interface, the acceleration sensor, the gyroscope, the motor, etc. may be integrated on the motherboard 300. Meanwhile, the display screen 200 may be electrically connected to the main board 300 to control the display of the display screen 200 by a processor on the main board 300.

The housing 100 is used to form the exterior contour of the electronic device 10 so as to house the electronics, functional components, etc. of the electronic device 10 while providing a seal and protection for the electronics and functional components within the electronic device 10. For example, the motherboard 300, battery, sensor, and other electronic and functional components of the electronic device 10 may all be disposed within the housing 100. It is understood that the housing 100 may include a middle frame 120 and a cover 110.

The middle frame 120 may have a thin plate-like or sheet-like structure, or may have a hollow frame structure. The center 120 is used to provide support for the electronics or functional components in the electronic device 10 to mount the electronics, functional components of the electronic device 10 together. For example, the middle frame 120 may be provided with grooves, protrusions, etc. to facilitate mounting of the electronic devices or functional components of the electronic device 10. It is understood that the material of the middle frame 120 may include metal or plastic. The middle frame 120 has opposite first and second sides, and the display screen 200 and the cover 110 are disposed on the first and second sides of the middle frame 120, respectively.

The cover 110 is used to seal the electronic devices and functional components of the electronic device 10 inside the electronic device 10 together with the middle frame 120 and the display screen 200, so as to protect the electronic devices and functional components of the electronic device 10.

In the related art, the mobile phone rear cover is usually adhered to one side of the middle frame, deviating from the display screen, a gap exists between the outer contour of the rear cover and the inner contour of the middle frame, in order to ensure that a user obtains better use handfeel and improve the appearance of the electronic equipment, the design gap between the rear cover and the middle frame is very small, then the rear cover is required to be assembled with higher assembly precision, the operability requirement on an installer is higher, the assembly operability of the rear cover is difficult to control in actual assembly, the situation that the rear cover and the middle frame are not aligned to cause the rear cover and the middle frame to be assembled in place in the assembly process is easy to occur, the posture of the rear cover needs to be adjusted repeatedly, and the installation efficiency of the rear cover is influenced.

To solve the above problem, the present application provides a cover 110.

Referring to fig. 2 and fig. 3 in combination, fig. 3 is a schematic structural diagram of a cover of an electronic device according to an embodiment of the present application. In the embodiment of the present application, the cover 110 is configured to be connected to the middle frame 120, and the cover 110 includes a first surface 1111 and a second surface 1121 disposed opposite to each other along a first direction, and one or more sidewalls 110a connected between the first surface 1111 and the second surface 1121, and the second surface 1121 is configured to be connected to the middle frame 120.

It can be understood that the first direction is the thickness direction of the cover 110, and the distance between the first surface 1111 and the second surface 1121 is the thickness of the cover 110. For convenience of explanation, as shown in fig. 3, a coordinate system is established with the thickness direction of the cover 110 as the Z-axis direction, which is the first direction. It will be appreciated that the second face 1121 is configured to be connected to the middle frame 120, that is, the second face 1121 is a face of the cover 110 facing the interior of the electronic device 10, where the second face 1121 may be bonded to the middle frame 120 by an adhesive. The first surface 1111 is a surface of the cover 110 facing the outside of the electronic device 10, and the first surface 1111 is a main appearance surface of the electronic device 10.

The first surface 1111 may be a plane surface, a curved surface, or a combination of a plane surface and a curved surface. Similarly, the second surface 1121 may be a plane surface, a curved surface, or a combination of a plane surface and a curved surface. For example, in some embodiments, as shown in fig. 3, the cover 110 includes a main body portion (not labeled) and a bending portion (not labeled) connected to an edge of the main body portion, the portions of the first surface 1111 and the second surface 1121 corresponding to the main body portion are both planar, and the portions of the first surface 1111 and the second surface 1121 corresponding to the bending portion are both designed to be curved, so that the cover 110 conforms to an ergonomic design, so as to avoid a cutting feel when a user holds the electronic device 10, and improve a use feel.

The sidewall 110a is connected between the first surface 1111 and the second surface 1121, and the sidewall 110a is an outer sidewall of the cover 110 except the first surface 1111 and the second surface 1121. Wherein, the sidewall 110a may include one or more (a plurality includes two and more). Referring to fig. 4, fig. 4 is a schematic diagram illustrating a partial assembly of a cover and a middle frame of an electronic device according to an embodiment of the disclosure. The middle frame 120 includes a carrying portion 121 (only a portion is shown in the figure) and a frame portion 122, where the carrying portion 121 is used for carrying and fixing electronic devices and functional components such as the motherboard 300, a battery, a sensor, and the like, and at least a portion of the second face 1121 of the cover 110 may be adhered to the carrying portion 121 of the middle frame 120 through a back adhesive. The frame portion 122 forms a side outline of the electronic device 10, and the frame portion 122 is configured to enclose the cover 110 and the carrier portion 121 to form a space for accommodating internal electronic components and functional components. The frame portion 122 has a first wall 122a and a second wall 122b, the first wall 122a is disposed along a direction perpendicular (or nearly perpendicular) to the display screen 200, the first wall 122a faces the inside of the electronic device 10, the second wall 122b is connected to the first wall 122a and faces the back or side of the electronic device 10, and a corner (not indicated) is formed at a connection position between the first wall 122a and the second wall 122 b. When the second surface 1121 of the cover body 110 is connected with the bearing portion 121, the side wall 110a of the cover body 110 is close to the first wall 122a, and a gap is formed between the two, and a sealant can be filled in the gap to seal the gap, so that a dustproof and waterproof sealing effect is achieved.

The first surface 1111 of the cover 110 serves as a main appearance surface of the electronic device 10, and the appearance effect of the cover 110 is a main factor affecting the overall appearance of the electronic device 10, so that the cover 110 may be formed by compounding multiple layers of plates in order to improve the aesthetic appearance of the cover 110.

In the related art, the mobile phone rear cover of the composite board is usually processed by a numerical control machine (CNC) to form a contour shape required by design, and the outer side wall of the rear cover is generally rough (obvious layering or fall between different boards) due to unavoidable deviation in processing. In the installation, the assembly activity allowance between lateral wall and the center of back lid is less, is difficult to control the assembly operability to the back lid, and the easy outer wall and the center contact friction that take place back lid and center misalignment make back lid during the assembly, and can have the barrier effect when layering and the center contact on the lateral wall, cause back lid overlap joint on the center, lead to back lid and center unable assembly in place, can only be with back lid and center complete connection down to exert great effort, perhaps need take off back lid and assemble again, cause the assembly efficiency of back lid low.

In contrast, in the embodiment of the present application, please refer to fig. 5 and fig. 6, fig. 5 is a partial enlarged view of a portion of fig. 3 a, and fig. 6 is a schematic cross-sectional view of a portion of the cover body contacting the middle frame in the embodiment of the present application. One side wall 110a includes a first portion 1112, a second portion 1122, a third portion 1131, and a guide 1113. First portion 1112 includes a first end and a second end, the first end being coupled to first face 1111. The second portion 1122 is spaced apart from the first portion 1112 in the first direction and is connected to the second face 1121. The third portion 1131 is located between the first portion 1112 and the second portion 1122, the third portion 1131 includes a third end and a fourth end, the fourth end is connected to the second portion 1122, the third end is spaced apart from the second end along the first direction, and the third end is located inside the second end. One end of the guide 1113 is connected to the second end, and the other end is connected to the third end.

It should be noted that the inner side of the second end refers to the side of the second end facing the inside of the electronic device 10. When the cover 110 includes two opposite sidewalls 110a, the inner side of the second end may be in a direction in which the second end faces the other sidewall 110a.

Because the third portion 1131 is located between the first portion 1112 and the second portion 1122, and the third portion 1131 is located inside the second end, a notch 110b is formed at a position of the sidewall 110a corresponding to the third portion 1131 (as shown in fig. 6). Without any treatment, during the process of installing the cover 110, since it is difficult to align the cover 110 with the rim portion 122 of the middle frame 120, the side wall 110a of the cover 110 easily touches the rim portion 122 of the middle frame 120 and generates sliding friction with the same, and the corner of the rim portion 122 is easily inserted into the notch 110b, and the cooperation of the corner and the notch 110b can limit the movement of the cover 110, so that the cover 110 can overlap the rim portion 122 of the middle frame 120, that is, a edging problem occurs, and the cover 110 and the middle frame 120 cannot be assembled in place.

Because there is the overlap problem, so this application embodiment still is provided with guide 1113, the one end of guide 1113 is connected with the second end of first part 1112, the other end of guide 1113 is connected with the third end of third part 1131, guide 1113 is located between third part 1131 and first part 1112, guide 1113 is located the one side that notch 110b is close to first part 1112, guide 1113 has the guide effect, when the edges and corners of frame part 122 contact with guide 1113, exert certain effort to lid 110, make guide 1113 can guide lid 110 and edges and corners produce relative slip, can make the edges and corners follow the notch 110b and slide out, can solve the overlap problem, avoid taking down lid 110 and install again, thereby promote assembly efficiency.

Optionally, the third portion 1131 and the guide 1113 extend through the cover 110 in a second direction, which is perpendicular to the first direction.

The second direction is a length direction or a width direction of the cover 110. Taking fig. 3 as an example, the second direction is a direction perpendicular to the paper surface, i.e., the Y-axis direction.

It can be appreciated that, when the third portion 1131 and the guiding portion 1113 penetrate the cover 110 along the second direction, the side wall 110a is formed with a notch 110b penetrating the cover 110 along the length direction or the width direction, and accordingly, the guiding portion 1113 penetrates the cover 110 along the length direction or the width direction, so that an entire edge of the frame portion 122 can contact with the guiding portion 1113, thereby further promoting the cover 110 to move relative to the middle frame 120, and more effectively and reliably solving the edge bonding problem.

For example, please refer to fig. 7 and 8, fig. 7 is a schematic partial cross-sectional view of the cover provided in the embodiment of the present application, and fig. 8 is a schematic partial cross-sectional view of the cover before the guide portion is not processed in the embodiment of the present application. In the present embodiment, the cover 110 includes a first plate 111, a second plate 112, and a first connection layer 113. The first plate 111 includes a first face 1111, a first portion 1112, and a guide 1113. The second plate 112 is disposed between the first plate 111 and the middle frame 120, and the second plate 112 includes a second face 1121 and a second portion 1122. The first connection layer 113 is stacked between the first plate 111 and the second plate 112 along the first direction, and the length of the first connection layer 113 along the third direction is smaller than the length of the first plate 111 and the second plate 112 along the third direction, so that the first connection layer 113 includes a third portion 1131, and the guiding portion 1113 is respectively connected to the second end and the third end, and the third direction is perpendicular to the first direction.

The cover 110 is formed by compounding the first plate 111 and the second plate 112, and by designing the material and color of the first plate 111 and the second plate 112, the pattern formed on the surfaces of the first plate 111 and the second plate 112, the surface shape of the first plate 111 and the second plate 112, and the like, the cover 110 can present the appearance effects of 3D, gradient color, special pattern, special texture, and the like, and the aesthetic property of the cover 110 can be improved, thereby improving the aesthetic property of the electronic device 10.

The first connection layer 113 has an adhesive effect to closely connect the first and second plates 111 and 112 together. The first connection layer 113 may be an adhesive tape or a structure formed by solidifying glue.

The third direction is a length direction or a width direction of the cover 110, and is perpendicular to the first direction and the second direction, i.e., an X-axis direction in fig. 3.

Specifically, the cover 110 is formed by connecting the plate material of the first plate 111 and the plate material of the second plate 112 into a whole through the first connecting layer 113, and then machining the whole through a numerical control machine tool to form the contour shape required by the design of the cover 110. When the outline shape of the cover 110 is formed by processing, since the first connecting layer 113 is made of a flexible material, the first connecting layer 113 is easy to shrink inwards after being cut, as shown in fig. 8, the length of the first connecting layer 113 is smaller than the length of the first plate 111 and the second plate 112 along the width direction (or the length direction) of the cover 110, and a notch 110b is formed between edges of the first plate 111 and the second plate 112. If the cover 110 is directly assembled without any treatment, because it is difficult to align the cover 110 with the middle frame 120, contact friction between the cover 110 and the middle frame 122 of the frame 120 is easy in the downward movement process, so that the situation that the edge angle of the frame 122 is just inserted into the notch 110b easily occurs, at this time, the first plate 111 is overlapped with the frame 122 of the middle frame 120, the edge angle of the frame 122 prevents the first plate 111 from continuing to move downward, so that a edging problem occurs, the cover 110 and the middle frame 120 cannot be assembled in place, and the cover 110 needs to be removed for assembly again, thereby reducing the assembly efficiency.

In order to solve the edging problem, the first plate 111 is provided with a guiding portion 1113, and the specific processing procedure is as follows: first, the first plate 111 and the second plate 112 are connected into a whole through the first connecting layer 113, then the contour shape required by the design of the cover 110 is processed through a numerical control machine, and a corner is cut and removed on one side of the edge part of the first plate 111 close to the first connecting layer 113 through the numerical control machine, so that a guiding part 1113 is formed on one side of the first plate 111 facing the second plate 112. Thus, the side surface of the first plate 111 forms the first portion 1112 and the guide portion 1113, the side surface of the second plate 112 forms the second portion 1122, the side surface of the first connection layer 113 forms the third portion 1131, and the first portion 1112, the guide portion 1113, the third portion 1131, and the second portion 1122 together form the sidewall 110a of the cover 110.

In this embodiment, the guide portion 1113 is disposed on the first plate 111, so, in the installation process, when the corner of the frame portion 122 is inserted into the notch 110b, the corner of the frame portion 122 contacts with the guide portion 1113, and by applying a certain force to the cover 110, the guide portion 1113 and the corner slide relatively, so that the cover 110 can move downward, thereby solving the problem that the cover 110 is lapped on the middle frame 120 and the cover 110 and the middle frame 120 cannot be assembled in place, without removing the cover 110 to be assembled again, and improving the assembly efficiency of the cover 110.

Optionally, in some embodiments, one sidewall 110a may include at least two first portions 1112, at least two second portions 1122, at least two third portions 1131, and at least two guides 1113 thereon. The cover 110 further includes at least three plates and at least two connection layers between the first side 1111 and the second side 1121, each connection layer being located between two adjacent plates; each of the connection layers includes a third portion 1131, one of each two adjacent plates adjacent to the first face 1111 includes a first portion 1112 and a guiding portion 1113, and the other plate adjacent to the second face 1121 includes a second portion 1122, and one guiding portion 1113 is connected to the second end of the first portion 1112 and the third end of the third portion 1131 between the two adjacent plates.

For example, in one embodiment, the cover 110 may be formed by combining three layers of plates due to the design requirements of the cover 110. The cover 110 may include a first plate, a second plate, a third plate, a first connection layer between the first plate and the second plate, and a second connection layer between the second plate and the third plate. In processing the contour shape of the cover 110, a first gap 110b is formed between the edges of the first and second plates and a second gap 110b is formed between the edges of the second and third plates due to inward shrinkage of the connection layer. Through including first part 1112 and a guiding part 1113 in every adjacent two plate bodies that is close to first face 1111, then make first breach 110b department be formed with first guiding part 1113 to and second breach 110b department is formed with second guiding part 1113, two guiding parts 1113 all have the guide effect, in the in-process that lid 110 assembled, two guiding parts 1113 can guide lid 110 and center in proper order and produce the relative slip, can avoid lid 110 to produce the overlap problem at two breach 110b respectively, promote lid 110's assembly efficiency.

Optionally, the guide 1113 is beveled.

It can be appreciated that by setting the guiding portion 1113 as an inclined surface, compared with the setting as an arc surface, the processing step is simple, the processing process can be simplified, the cover 110 can be conveniently processed in a CNC manner, and the processing precision of the cover 110 can be conveniently controlled. Moreover, since the shape of the inclined surface is simple, the whole shape of the side wall 110a is relatively simple, so that the profiling tool for the shape of the side wall 110a of the cover body 110 can be easily designed, and only one profiling tool can be adopted in the whole processing process of the cover body 110, so that the contour shape of the cover body 110 and the surface shape of the side wall 110a can be simultaneously processed at one time.

The electronic device 10 includes a display surface, and the guide 1113 forms a small angle with the display surface.

Referring to fig. 9, fig. 9 is a diagram illustrating contact between the cover and the middle frame according to an embodiment of the present disclosure. Specifically, when the corner of the frame portion 122 is inserted into the notch 110b during the assembly of the cover, since the first plate 111 has the guide 1113, the corner contacts the guide 1113, and a certain force is applied to the cover 110, so that the guide 1113 can slide relative to the corner. When the force applied to the lid 110 is defined as F and the force component applied to the guide 1113 is defined as F1, the force component F1 applied to the guide 1113 is greater than the pressing force applied to the middle frame 120 in order to facilitate the relative sliding between the guide 1113 and the corner. The angle between the guiding portion 1113 and the horizontal plane is defined as a, that is, the angle between the guiding portion 1113 and the display surface is defined as a. The component force f1=f/tanA received by the guide 1113 is calculated. It is understood that the smaller tan a, the smaller force F can be applied to subject the guide 1113 to the larger force component F1, and the smaller tan a means the smaller angle a, i.e., the smaller angle a between the guide 1113 and the display surface. In practical applications, the angle between the guiding portion 1113 and the display surface is within the range of 10 ° to 50 ° (including 10 ° and 50 °), so that the cover 110 can easily slide relative to the middle frame 120, thereby solving the edging problem. In addition, from the viewpoint of the ease of processing the guide portion 1113, the angle between the guide portion 1113 and the display surface may be 30 °, and the angle between the guide portion 1113 and the first direction (thickness direction) may be 60 °.

Optionally, the cover 110 includes two side walls 110a, where the two side walls 110a are disposed opposite to each other, and each side wall 110a includes the first portion 1112, the second portion 1122, the third portion 1131, and the guiding portion 1113.

It can be appreciated that, by providing the first portion 1112, the second portion 1122, the third portion 1131 and the guiding portion 1113 on the two opposite side walls 110a of the cover 110, any one of the two side walls 110a has the guiding function of the guiding portion 1113, so that when any one of the two side walls 110a overlaps the middle frame 120, the side wall 110a can be moved relative to the middle frame 120 by applying a small force to the cover 110, and the overlapping problem between any one of the two side walls 110a and the middle frame 120 can be solved without removing the cover 110, thereby further improving the assembly efficiency of the cover 110.

For example, please refer to fig. 10, fig. 10 is a top view of the cover according to an embodiment of the present application. Taking the case that the cover 110 is applied to a mobile phone as an example, the outline shape of the cover 110 may be rectangular (including square corner rectangle and rounded corner rectangle), then the cover 110 may include two opposite longitudinal side walls 1101 (along the length direction of the cover 110) or two opposite lateral side walls 1102 (along the width direction of the cover 110). The two longitudinal side walls 1101 may each include a first portion 1112, a second portion 1122, a third portion 1131, and a guide 1113, or the two lateral side walls 1102 may each include a first portion 1112, a second portion 1122, a third portion 1131, and a guide 1113.

Alternatively, in another embodiment, the cover 110 includes four sidewalls 110a, wherein two sidewalls 110a are disposed opposite to each other, and the other two sidewalls 110a are disposed opposite to each other. Each sidewall 110a includes the first portion 1112, the second portion 1122, the third portion 1131, and the guide 1113 described above.

In this embodiment, the four side walls 110a of the cover 110 are provided with the first portion 1112, the second portion 1122, the third portion 1131 and the guiding portion 1113, so that when any one or more of the four side walls 110a overlap the middle frame 120, the cover 110 can be moved relative to the middle frame 120 by applying a smaller force to the cover 110, and the problem of overlapping any side wall 110a with the middle frame 120 can be solved without removing the cover 110, thereby further improving the assembly efficiency of the cover 110.

For example, referring to fig. 10, taking the case that the cover 110 is applied to a mobile phone as an example, the cover 110 may have a rectangular outline (including square rectangle and rounded rectangle), and the cover 110 may include two opposite longitudinal side walls 1101 (along the length direction of the cover 110) and two opposite lateral side walls 1102 (along the width direction of the cover 110). Wherein both longitudinal side walls 1101 and both lateral side walls 1102 comprise a first portion 1112, a second portion 1122, a third portion 1131, and a guide 1113.

In the embodiment of the present application, the first connection layer 113 may be an optical adhesive.

It can be appreciated that the optical cement is colorless and transparent, has higher light transmittance, has high adhesive strength, and good heat resistance, and can connect the first plate 111 with the second plate 112 by adopting the optical cement, so that the first plate 111 and the second plate 112 can be tightly connected, and meanwhile, light can penetrate the first connecting layer 113 to be injected into the second plate 112, and the light effect appearance (such as 3D effect, photochromic effect and the like) of the cover 110 can be realized. The first connection layer 113 may be an OCA optical adhesive (Optically Clear Adhesive), for example.

Alternatively, the materials of the first plate 111 and the second plate 112 may be different.

For example, the first plate 111 and the second plate 112 may be made of materials with different light transmittance, that is, the refractive index (or reflectivity) of the first plate 111 to light and the refractive index (or reflectivity) of the second plate 112 to light are different, so that the light passes through the first plate 111 and the second plate 112 to be refracted and reflected at different angles, and a gorgeous 3D effect can be achieved.

For example, the material of the first plate 111 may be acrylic, and the material of the second plate 112 may be PC.

Alternatively, the materials of the first plate 111 and the second plate 112 may be the same.

When the first plate 111 and the second plate 112 are made of the same material, different pattern layers, color layers or texture layers can be formed on the first plate 111 and the second plate 112, so that the appearance effects of gradual change of colors, special patterns, special textures and the like can be achieved.

Referring to fig. 7, the cover 110 further includes a second connection layer 114, the first connection layer 113 is connected to the second surface 1121, and the second connection layer 114 is further used for connecting with the middle frame 120.

The second connection layer 114 has an adhesion function, so that the second plate 112 and the bearing portion 121 of the middle frame 120 are tightly connected together, and the cover 110 is prevented from falling off. The second connection layer 114 may be an adhesive tape or a structure formed by solidifying glue.

It is understood that the second connecting layer 114 may be formed by a single piece of adhesive layer uniformly disposed on the second surface 1121. The second connection layer 114 may also include a plurality of sub-adhesive layers, which may be arranged on the second surface 1121 at intervals as required to avoid a part of electronic devices or functional devices mounted on the middle frame 120.

Alternatively, the first plate 111, the second plate 112, and the first connection layer 113 may be integrally formed.

Specifically, in the present embodiment, the first plate 111 and the second plate 112 are first stacked and connected to form a whole by the connection of the first connection layer 113, and then the whole is processed into a contour shape required for design by a CNC (numerical control machine), so as to form the cover 110, and then the cover 110 is assembled to the middle frame 120.

It can be appreciated that by designing the first plate 111, the second plate 112, and the first connection layer 113 as an integral structure, that is, the first plate 111, the second plate 112, and the first connection layer 113 are integrated, that is, the cover 110 is integrated, rather than a separate structure formed by a plurality of independent pieces, the cover 110 can be conveniently transported, assembled, and replaced.

In the description of the present application, it should be understood that terms such as "first," "second," and the like are used merely to distinguish between similar objects and should not be construed to indicate or imply relative importance or implying any particular order of magnitude of the technical features indicated.

The cover body and the electronic device provided by the embodiment of the application are described in detail above. Specific examples are set forth herein to illustrate the principles and embodiments of the present application, with the description of the examples given above only to assist in understanding the present application. Meanwhile, those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, and the present description should not be construed as limiting the present application in view of the above.

Claims (13)

1. The cover body is characterized by being applied to electronic equipment, wherein the electronic equipment comprises a middle frame, and the cover body is used for being connected with the middle frame; the cover body comprises a first surface and a second surface which are oppositely arranged along a first direction, and one or more side walls connected between the first surface and the second surface, wherein the second surface is used for being connected with the middle frame; one of the side walls comprises:

a first portion comprising a first end and a second end, the first end being attached to the first face;

a second portion disposed spaced apart from the first portion along the first direction and connected to the second face;

a third portion located between the first portion and the second portion, the third portion including a third end and a fourth end, the fourth end being connected to the second portion, the third end being spaced from the second end along the first direction, and the third end being located inboard of the second end; and

And one end of the guide part is connected with the second end, and the other end of the guide part is connected with the third end.

2. The cover of claim 1, wherein the third portion and the guide extend through the cover in a second direction, the second direction being perpendicular to the first direction.

3. The cover of claim 1, wherein the cover further comprises:

a first plate body including the first face, the first portion, and the guide portion;

the second plate body is arranged between the first plate body and the middle frame and comprises the second face and the second part; and

The first connecting layer is stacked along the first direction and is arranged between the first plate body and the second plate body, the length of the first connecting layer along the third direction is smaller than that of the first plate body and the second plate body along the third direction, the first connecting layer comprises a third part, the guide parts are respectively connected to the second end and the third end, and the third direction is perpendicular to the first direction.

4. A cover according to claim 3, wherein the first connection layer comprises an optical adhesive.

5. A cover according to claim 3, wherein the first plate, the second plate and the first connecting layer are of unitary construction.

6. A cover as set forth in claim 3 further comprising a second tie layer attached to said second face, said second tie layer further adapted to be attached to said middle frame.

7. A cover according to claim 3, wherein the first plate and the second plate are of different materials.

8. The cover of claim 1, wherein one of said side walls includes at least two of said first portions, at least two second portions, at least two third portions and at least two guides;

the cover body further comprises at least three plate bodies and at least two connecting layers, wherein the three plate bodies and the at least two connecting layers are positioned between the first surface and the second surface, and each connecting layer is positioned between two adjacent plate bodies; each connecting layer comprises a third part, one of every two adjacent plate bodies close to the first surface comprises a first part and a guide part, the other plate body close to the second surface comprises a second part, and one guide part is connected with the second end of the first part and the third end of the third part between the two adjacent plate bodies.

9. A cover according to any one of claims 1 to 8, wherein the guide is a ramp.

10. The cover of any one of claims 1 to 8, wherein the electronic device includes a display surface, and the guide portion forms an angle with the display surface of between 10 ° and 50 °.

11. The cover of any one of claims 1 to 8, wherein the cover comprises two side walls, the two side walls being disposed opposite each other, each side wall comprising the first portion, the second portion, the third portion, and the guide.

12. A cover according to any one of claims 1 to 8, wherein the cover comprises four of said side walls, two of said side walls being disposed opposite each other, and two of said other side walls being disposed opposite each other; each of the side walls includes the first portion, the second portion, the third portion, and the guide.

13. An electronic device comprising a central frame and a cover as claimed in any one of claims 1 to 12, the cover being connected to the central frame.