CN116033689A

CN116033689A - Structural member, manufacturing method thereof and electronic equipment

Info

Publication number: CN116033689A
Application number: CN202310107647.3A
Authority: CN
Inventors: 张少辉; 刘宝; 宋增豪
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2023-02-14
Filing date: 2023-02-14
Publication date: 2023-04-28
Anticipated expiration: 2043-02-14
Also published as: CN116033689B

Abstract

The utility model provides a structure and manufacturing method, electronic equipment thereof, structure are through separating out a plurality of splices in main part, and the position that corresponds the splice in the main part forms the subtracting groove, makes splice body coupling in main part, splice each other between the adjacent splice, and all splices connect gradually and form and separate the barrier strip, make and separate the face of barrier strip perpendicular to main part. So, utilize the material of main part self to form the concatenation body, the concatenation body splices in proper order and forms continuous, an organic whole is connected in the barrier strip of main part, after the concatenation of concatenation body splice interlocking, can not take place the displacement along the length direction of barrier strip, and can play the effect of transfer force, can guarantee the distortion intensity of barrier strip, promotes the resistance deformability of barrier strip. In addition, the barrier strip is easy to process and form, and the reliability of low cost, high efficiency and structural strength can be simultaneously considered.

Description

Structural member, manufacturing method thereof and electronic equipment

Technical Field

The present disclosure relates to the field of electronic devices, and in particular, to a structural member, a manufacturing method thereof, and an electronic device.

Background

As a structural skeleton of an electronic device, in order to carry components such as a display screen, a battery, a circuit board, and the like, the middle frame generally needs to be designed with a complex convex structure, for example, a battery compartment partition, a screw boss, a microphone bearing table, and the like.

At present, a stamping forming process is generally adopted to process a plate-shaped member made of alloy material into a metal bracket with a certain shape so as to form a part of vertical wall of a battery compartment. And then, filling plastic structures on the plate surface and the periphery of the metal bracket through an injection molding process, wherein the plastic structures and the metal bracket form a middle frame together. The plastic structure is coated outside the vertical wall of the battery compartment formed by the metal bracket, and the other part of the vertical wall of the battery compartment is formed by the plastic structure.

However, the existing middle frame has the defects of poor torsional structure, large distortion and high risk of damaging sensitive components such as batteries, screens and the like.

Disclosure of Invention

The structural member, the manufacturing method thereof and the electronic equipment are good in torsional mechanical property and high in structural strength, and the reliability of the electronic equipment can be improved.

In a first aspect, the present application provides a structural member, including a main body portion and at least one barrier strip, the barrier strip being integrally formed on the main body portion, and the barrier strip being perpendicular to a panel surface of the main body portion;

the barrier strip comprises a plurality of splice bodies which are sequentially arranged along the length direction of the barrier strip, the splice bodies are integrally connected with the main body part, and adjacent splice bodies are mutually spliced; the splice body is separated from the main body part, a material reducing groove is formed in the main body part corresponding to the splice body, and the material reducing groove is matched with the corresponding splice body in shape.

The structure that this application provided, through separating out a plurality of splice bodies in the main part, the position that corresponds the splice body in the main part forms the subtracting groove, makes splice body coupling in the main part, splices each other between the adjacent splice body, and all splice bodies connect gradually and form the barrier strip, make the face of barrier strip perpendicular to main part. So, utilize the material of main part self to form the concatenation body, the concatenation body splices in proper order and forms continuous, an organic whole is connected in the barrier strip of main part, after the concatenation of concatenation body splice interlocking, can not take place the displacement along the length direction of barrier strip, and can play the effect of transfer force, can guarantee the distortion intensity of barrier strip, promotes the resistance deformability of barrier strip. In addition, the barrier strip is easy to process and form, and the reliability of low cost, high efficiency and structural strength can be simultaneously considered.

In one possible implementation manner, the splice body comprises a first end splice body, a second end splice body and a plurality of middle splice bodies, wherein the first end splice body and the second end splice body are respectively positioned at two ends of the barrier strip in the length direction, and the plurality of middle splice bodies are sequentially connected between the first end splice body and the second end splice body;

wherein, splice each other between the adjacent middle splice body, splice each other between first end splice body and the adjacent middle splice body, splice each other between second end splice body and the adjacent middle splice body.

Through setting up first end splice, second end splice and a plurality of middle splice, the middle part of barrier strip is formed in the splice in proper order, interlock in a plurality of middle splice, and first end splice and second end splice set up respectively at the both ends of barrier strip, and first end splice and with adjacent middle splice each other splice, interlock, second end splice and with adjacent middle splice each other splice, interlock, constitute the barrier strip jointly.

In one possible embodiment, the intermediate splice body comprises a first splice body and a second splice body, which are alternately and mutually spliced in sequence.

Through setting up first concatenation body and second concatenation body in turn, the shape of first concatenation body and second concatenation body can phase-match, splices each other between adjacent first concatenation body and the second concatenation body for splice, interlock in proper order in each middle concatenation body forms the mid portion of barrier strip.

In one possible embodiment, the splice body includes a connection portion and a blocking portion, one end of the connection portion is integrally connected to the main body portion, the blocking portion is connected to the other end of the connection portion, and the blocking portion extends in a direction away from the plate surface of the main body portion, and the blocking portions of adjacent splice bodies are spliced with each other.

The splice body is integrally connected to the main body through the connecting part, so that the splice body and the main body are integrally connected, and the mechanical property of the formed barrier strip is enhanced. The splice body is through deviating from the one end of main part at connecting portion and forming separating the fender portion, makes separating the fender portion to deviating from the direction of the face of main part and stretches out, and each splice body is through the respective splice in proper order between separating the fender portion, interlocks, forms and separates the barrier to promote the reliability that separates barrier anti-torsion.

In one possible embodiment, the connection comprises a first bent section and a vertical section connected in sequence;

one end body coupling in main part of first bending section, vertical section connect the other end at first bending section, and vertical section perpendicular to the face of main part separates the one end that keeps off the part and connect at vertical section and deviate from first bending section.

The connecting portion of the spliced body is integrally connected to the main body portion through the first bending section, the first bending section is bent towards the direction away from the plate surface of the main body portion, the vertical section connected to the other end of the first bending section is perpendicular to the plate surface of the main body portion, and the baffle portion connected to the vertical section is vertically arranged on the main body portion, so that a baffle strip perpendicular to the plate surface of the main body portion is formed.

In one possible embodiment, a gap is provided between the bottom end surface of the barrier portion and the main body portion; the bottom end face of the baffle part is one side end face of the baffle part facing the main body part.

The vertical section of the connecting portion of the splice body enables a gap to be formed between the bottom end face of the separation blocking portion and the main body portion, the bottom end face of the separation blocking portion can be prevented from contacting the plate face of the main body portion through the gap, the first bending section can be ensured to be bent smoothly, and smooth separation between the splice body and the main body portion is ensured. Moreover, the gap also reserves enough deformation space for splicing and interlocking between the blocking parts of the adjacent splice bodies, and can help to realize tight connection between the blocking parts of the adjacent splice bodies.

In one possible embodiment, the blocking portion includes a main board portion and a splicing portion, the splicing portions of the intermediate splicing bodies are located on two sides of the main board portion, and the splicing portions of the first end splicing body and the second end splicing body are located on one side of the main board portion facing the intermediate splicing body, and the splicing portions of the adjacent splicing bodies are spliced with each other.

The main board part is a main structure of the barrier part, and the main board part provides main supporting deflection for the splice bodies, so that each splice body is spliced in sequence to form a long barrier strip. The splice parts are positioned at the sides of the main board parts, and adjacent splice parts are mutually spliced together through the splice parts.

In one possible embodiment, the splice comprises a first splice and a second splice, the first splice and the second splice being spliced to each other;

the first splicing part comprises a first transverse section and a first vertical section, the first transverse section is connected to the side wall of the main board part and extends out to the side of the main board part, one end of the first vertical section is connected to one end of the first transverse section, which is far away from the main board part, and the other end of the first vertical section extends towards the direction, which is far away from the board surface of the main body part;

the second splicing part comprises a second transverse section and a second vertical section, the second transverse section is connected to the side wall of the main board part and extends out to the side of the main board part, one end of the second vertical section is connected to one end of the second transverse section, which is far away from the main board part, and the other end of the second vertical section extends towards the board surface of the main board part;

the first vertical section is inserted between the second vertical section and the main board part, and the second vertical section is inserted between the first vertical section and the main board part.

In one possible embodiment, the width of the first vertical section gradually increases from one end of the first vertical section connected with the first horizontal section to the other end of the first vertical section;

one end connected with the second transverse section by the second vertical section to the other end of the second vertical section, and the width of the second vertical section is gradually increased.

Through making the first vertical section of first splice by its one end of being connected with first changeover portion to its other end, the width of first vertical section increases gradually, and correspondingly, the second vertical section of messenger's second splice is by its one end of being connected with the second changeover portion to its other end, and the width of second vertical section increases gradually for the mutual restriction between two adjacent splice bodies is in order to hinder breaking away from along the direction of height of separating the blend stop between the splice body, guarantees the reliability of concatenation between the splice body.

In one possible embodiment, the first vertical section is in close contact with the second horizontal section and/or the second vertical section is in close contact with the first horizontal section.

Through making the first vertical section of first splice and the second horizontal section in close contact of second splice, the second vertical section of second splice and the first horizontal section in close contact of first splice, does not have the gap between the separation stop portion of adjacent splice, and the separation stop strip that forms after the separation stop portion concatenation of each splice has better, intensity is higher.

In one possible embodiment, the bottom end surface of the first transverse section is flush with the bottom end surface of the main plate portion; and/or, the top end surface of the second transverse section is flush with the top end surface of the main board part.

In one possible embodiment, the two sides of the main board portion of the first splice body are both first splice portions, and the two sides of the main board portion of the second splice body are both second splice portions.

In one possible embodiment, the two sides of the main board portion of the first splice body are a first splice portion and a second splice portion, respectively.

In one possible embodiment, the first end splice body is connected to a first side rail of the main body portion, and the second end splice body is connected to a second side rail of the main body portion; the first side wall baffle and the second side wall baffle are respectively positioned on two opposite sides of the main body part.

Through making the first end concatenation body of separating the blend stop and the first side wall fender of main part be connected to make the second end concatenation body of separating the blend stop and the second side wall fender of main part be connected, first side wall keeps off and the second side wall keeps off and supports the both ends of separating the blend stop respectively fixedly, can reduce even avoid separating the blend stop and in its ascending displacement of length direction, and can play the effect of transmission, guarantee the distortion intensity of blend stop, realize the promotion of the anti distortion reliability of blend stop.

In one possible embodiment, the barrier portion of the first end splice body further includes a first locking portion, the first locking portion is connected to the connecting portion, and the first locking portion is connected to the first side barrier;

the baffle part of the second end splicing body further comprises a second locking part, the second locking part is connected to the connecting part, and the second locking part is connected with the second side baffle.

In one possible embodiment, at least one of the first side wall and the second side wall is integrally connected with a positioning retaining wall, at least one of the first locking portion and the second locking portion is provided with a positioning groove, a notch of the positioning groove faces the main body portion, and the positioning retaining wall is clamped into the positioning groove.

Through at least one body coupling location barricade in first side fence and second side fence, correspondingly, set up the constant head tank in at least one of first closure portion and second closure portion, through making the location barricade card go into in the constant head tank, realize first end splice (second end splice) and first side fence (second side fence) body coupling, strengthen the distortion intensity of barrier strip.

In one possible embodiment, the positioning retaining wall comprises a connecting wall and a positioning wall which are integrally formed, at least one of the first side wall baffle and the second side wall baffle is integrally connected with the connecting wall, the positioning wall is connected with the connecting wall, the positioning wall extends along the direction perpendicular to the barrier strip, and the positioning wall is clamped into the positioning groove.

In one possible embodiment, at least one of the first side wall baffle and the second side wall baffle is provided with a positioning opening, at least one of the first locking portion and the second locking portion comprises an extension section and a positioning section which are sequentially connected to the connecting portion, the extension section extends to the side wall of the main body portion, and the positioning section is inserted into the positioning opening.

In one possible embodiment, the extension section includes a second bending section and a horizontal section connected in sequence, one end of the second bending section is connected to the connecting portion, the horizontal section is connected to the other end of the second bending section, and the horizontal section horizontally extends to the side wall of the main body portion.

In one possible embodiment, the barrier strip has a material reduction groove on both sides.

Through making in the all splice that constitutes the barrier strip, a part splice separates from the panel that is located barrier strip one side on the main part, and another part splice separates from the panel that is located barrier strip opposite side on the main part, makes the main part all be formed with in the both sides of barrier strip and subtracts the silo to guarantee the structural strength of main part, avoid causing the influence to the installation of device, guarantee the reliability that the main part supported the device.

In one possible embodiment, the material reduction grooves are alternately arranged at intervals on both sides of the barrier strip.

Through making the material reduction groove that forms on the main part set up in the both sides of separating the blend stop alternately, the material reduction groove evenly spaced distributes in the both sides of separating the blend stop, has avoided the phenomenon that the material reduction groove concentrated distribution, can strengthen the homogeneity of the intensity of main part in the blend stop both sides, promotes the reliability of main part.

In one possible embodiment, the reduction grooves are located on the same side of the barrier strip.

In a second aspect, the present application provides a method of making a structural member for forming a structural member as described above, the method comprising:

providing an initial structural body having a body portion;

cutting the main body of the initial structure to separate a plurality of spliced bodies which are sequentially arranged on the main body part, so that the spliced bodies are integrally connected to the main body part and form a preset angle with the plate surface of the main body part;

and bending the spliced bodies to enable the spliced bodies to be perpendicular to the plate surface of the main body part, and mutually splicing adjacent spliced bodies to form the barrier strips.

According to the manufacturing method of the structural part, the main body part is cut, the plurality of spliced bodies are separated from the main body part, the spliced bodies are integrally connected to the main body part, the spliced bodies are bent, the spliced bodies are finally perpendicular to the plate surface of the main body part, the adjacent spliced bodies are spliced with each other, and the barrier strips perpendicular to the plate surface of the main body part are formed. So, utilize the material of main part self to form the concatenation body, the concatenation body splices in proper order and forms continuous, an organic whole is connected in the barrier strip of main part, after the concatenation of concatenation body splice interlocking, can not take place the displacement along the length direction of barrier strip, and can play the effect of transfer force, can guarantee the distortion intensity of barrier strip, promotes the resistance deformability of barrier strip. In addition, the barrier strip is easy to process and form, and the reliability of low cost, high efficiency and structural strength can be simultaneously considered.

In one possible embodiment, the bending process is performed on the spliced body, including:

performing primary pre-bending treatment on the spliced body to enable the spliced body and the plate surface of the main body to form a first preset angle; wherein the first preset angle is less than 90 °;

and finally bending the spliced body to enable the spliced body to be perpendicular to the plate surface of the main body part.

Through with the concatenation body through at least twice processing of bending, progressively bend to the face of perpendicular to main part, can prevent that the concatenation body from splitting, and the controllability of bending process is high, can promote the accuracy of buckling, guarantees the accuracy of the final position of concatenation body.

In one possible embodiment, after the first pre-bending treatment is performed on the spliced body, before the final bending treatment is performed, the method further includes:

performing secondary pre-bending treatment on the spliced body to enable the spliced body and the plate surface of the main body to form a second preset angle; the second preset angle is larger than the first preset angle and smaller than 90 degrees.

In one possible embodiment, after the final bending treatment is performed on the spliced body, the method further includes:

and extruding the splicing parts between the adjacent splicing bodies so as to tightly connect the adjacent splicing bodies.

By extruding the splicing parts between the adjacent splicing bodies, the materials of the splicing parts generate certain deformation, so that the adjacent splicing bodies are tightly connected, the integrity and consistency of the formed barrier strips are ensured, and the structural strength and the torsion resistance of the barrier strips are improved.

In a third aspect, the present application provides an electronic device comprising a structural member as described above.

The application provides an electronic equipment, including the structure, the structure is through separating out a plurality of splices in the main part, and the position that corresponds the splice in the main part forms the subtracting groove, makes splice body coupling in the main part, splices each other between the adjacent splice, and all splices connect gradually and form the barrier strip, make the face of barrier strip perpendicular to main part. So, utilize the material of main part self to form the concatenation body, the concatenation body splices in proper order and forms continuous, an organic whole is connected in the barrier strip of main part, after the concatenation of concatenation body splice interlocking, can not take place the displacement along the length direction of barrier strip, and can play the effect of transfer force, can guarantee the distortion intensity of barrier strip, promotes the resistance deformability of barrier strip. In addition, the barrier strip is easy to process and form, and the reliability of low cost, high efficiency and structural strength can be simultaneously considered.

Drawings

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

FIG. 2 is an exploded view of the electronic device shown in FIG. 1;

fig. 3 is a schematic front perspective view of a structural member according to an embodiment of the present disclosure;

FIG. 4 is a rear perspective view of the structural member of FIG. 3;

FIG. 5 is a schematic view of the structural body of the structural member of FIG. 4 from one perspective;

FIG. 6 is a partial block diagram of FIG. 5 at A;

FIG. 7 is a partial enlarged view of the structure at B in FIG. 6;

FIG. 8 is a schematic view of the structure of FIG. 5 from another perspective;

FIG. 9 is an enlarged view of a portion of FIG. 8 at C;

FIG. 10 is a third view of the structure body of FIG. 5;

fig. 11 is a partially enlarged structural view of D in fig. 10;

FIG. 12 is a partial cross-sectional view of a structural body provided in an embodiment of the present application;

FIG. 13 is a partially enlarged block diagram of FIG. 6 at E;

fig. 14 is a partially enlarged structural view at F in fig. 6;

FIG. 15 is a flow chart of steps of a method of manufacturing according to an embodiment of the present disclosure;

fig. 16 is a process flow diagram of a manufacturing method according to an embodiment of the present application.

Detailed Description

The terminology used in the description section of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the present application.

The embodiment of the application provides electronic equipment which can be consumer electronic products. By way of example, electronic devices include, but are not limited to, cell phones, tablet computers (portable android device, PAD), noteBook computers (NoteBook Computer, abbreviated as NoteBook), ultra-mobile personal computers (ultra-mobile personal computer, UMPC), interphones, netbooks, POS (Point of sales) machines, personal digital assistants (personal digital assistant, PDA), wearable devices, virtual Reality (VR) devices, augmented reality (augmented reality, AR) devices, and the like. The form of the terminal device in the embodiment of the present application is not specifically limited.

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application. Referring to fig. 1, taking an electronic device 1 as an example of a mobile phone, the electronic device 1 may include a display screen 10 and a housing 20. One side surface of the display screen 10 for displaying image information is generally defined as a front surface thereof, and the other side surface opposite to the front surface thereof is defined as a rear surface thereof. The casing 20 is disposed around the periphery of the display screen 10 and is used for supporting and fixing the display screen 10 and providing protection. The front surface of the display screen 10 is exposed outside the housing 20 for a user to view contents displayed on the display screen 10 or to perform input operations to the electronic apparatus 1.

In general, a surface on which the display screen 10 is located is defined as a front surface of the electronic apparatus 1, and another surface of the electronic apparatus 1 opposite to the front surface thereof is defined as a rear surface thereof.

Fig. 2 is an exploded view of the electronic device shown in fig. 1. Referring to fig. 2, the case 20 of the electronic device 1 may include a middle frame 21 and a rear cover 22, the middle frame 21 being connected between the display screen 10 and the rear cover 22, the display screen 10 being supported on a front surface of the middle frame 21 (a side surface of the middle frame 21 facing the front surface of the electronic device 1), and the rear cover 22 being connected on a rear surface of the middle frame 21 (a side surface of the middle frame 21 facing the rear surface of the electronic device 1). The display screen 10 is generally integrally supported on the middle frame 21, so as to ensure the strength and stability of the display screen 10, and meet the use requirement of the display screen 10. The rear cover 22 is generally connected with the middle frame 21 in a lap joint manner, an accommodating space is defined between the middle frame 21 and the rear cover 22, and devices such as a battery, a circuit board, a camera module, a microphone and the like are arranged in the accommodating space.

The middle frame 21 may include a middle plate portion 211 and a frame portion 212, where the middle plate portion 211 is located between the display screen 10 and the rear cover 22 and is generally parallel to the display screen 10 and the rear cover 22, the frame portion 212 is surrounded on a peripheral side of the middle plate portion 211, and the frame portion 212 may extend toward two sides of the middle plate portion 211 perpendicular to a plate surface of the middle plate portion 211, for example, and the display screen 10 and the rear cover 22 may be located in an area surrounded by the frame portion 212. Illustratively, the rim portion 212 and the middle plate portion 211 may be an integrally formed structure.

The display screen 10 is generally mounted on the middle plate 211 of the middle frame 21 in an integrally-bonded manner, for example, the display screen 10 is bonded on the middle plate 211 through back glue, and the display screen 10 can be stably and firmly supported by virtue of the support of the middle plate 211 to the display screen 10, so that the display screen 10 has enough strength, and the use requirement of the display screen 10 that is frequently pressed is met. The frame 212 is disposed around the display 10 to protect the edge of the display 10, thereby helping the display 10 to resist collision, drop and other dangerous situations and protecting the display 10 from damage. For example, the edge of the display screen 10 may overlap the bezel portion 212, or a gap may be provided between the side wall of the display screen 10 and the inner side wall of the bezel portion 212 (a side wall surface of the bezel portion 212 toward the middle plate portion 211).

The edge of the rear cover 22 is connected to the rim portion 212 of the middle frame 21, for example, the edge of the rear cover 22 is bonded to the rim portion 212 by a back adhesive. A space is provided between the middle plate portion 211 of the middle frame 21 and the rear cover 22, which forms an accommodation space as described above, to provide a device in the accommodation space between the middle plate portion 211 of the middle frame 21 and the rear cover 22. In some examples, the rear cover 22 may be generally flat, the back of the middle frame 21 may be formed with a lap edge, for example, extending inward from the inner sidewall of the rim portion 212, the rear cover 22 may be supported and connected on the lap edge of the middle frame 21, and the display screen 10 and the rear cover 22 are respectively located on two sides of the middle frame 21, and the three are in a "sandwich" configuration; in other examples, the edge of the rear cover 22 may be bent toward the side where the display screen 10 is located, the cross section of the rear cover 22 is approximately U-shaped, the edge of the rear cover 22 is enclosed on the outer side wall of the frame portion 212 of the middle frame 21 (the side wall surface of the frame portion 212 facing away from the middle plate portion 211), the rear cover 22 wraps the middle frame 21 with the display screen 10, and only the side edge of the middle frame 21 facing to the side of the display screen 10 is exposed.

In order to mount devices such as a battery, a circuit board, a microphone, and an image capturing module, a complicated protrusion structure such as a barrier strip 120 of a battery compartment, a bearing table of the microphone, a mounting boss 130 for fixing the circuit board, a positioning column 140, and the like is generally required to be designed on a structural member 100 of the electronic apparatus 1 (for example, a middle frame 21 of a mobile phone, a rear case of a tablet computer, a bottom case of a notebook computer, and the like).

The structural member 100 of the electronic device 1 will be described in detail below using the center 21 of the mobile phone as an example.

In order to ensure the functions of bending resistance, torsion resistance, radio frequency signal transmission and the like of the middle frame 21, the middle frame 21 is generally made of a metal material to form a main structure, and a plastic material is coated on a partial area of the main structure to form an integral structure of the middle frame 21. In the case where the rear cover 22 is substantially flat, and the display screen 10 and the rear cover 22 are disposed on both sides of the middle frame 21, the middle frame 21 in this structure is generally manufactured by a die casting process, in other words, the middle frame 21 is generally manufactured by a die casting alloy as a main structure, and the process is to fill a die casting mold with a liquid metal and cool the liquid metal. Taking the cross section of the rear cover 22 being approximately U-shaped and the edge of the rear cover 22 being enclosed on the outer side wall of the frame portion 212 of the middle frame 21 as an example, the main structure of the metal material of the middle frame 21 in this structure is usually manufactured by adopting a die casting process or a stamping process, in other words, the middle frame 21 is usually manufactured by adopting a die casting alloy or a stamping alloy as the main structure, the die casting process is not repeated here, and the stamping process is to stamp and bend the alloy sheet material in a plurality of steps to obtain a certain shape.

Wherein, for the main body structure of the middle frame 21 formed by the die casting molding process, the product form design is free, the main body structure can form a surrounding structure with complete annular vertical walls around as a battery compartment, the vertical walls of the battery compartment have good structural mechanical properties and certain anti-torsion capability. However, this process has many manufacturing steps, long time and high cost, and because the liquid metal is adopted to flow in the cavity of the die casting die, the fluidity requirement of the alloy material is high, and the elongation of the main structure of the formed middle frame 21 is poor and the impact resistance is weak.

For the main structure of the middle frame 21 formed by the stamping forming process, the product form design is limited by the thickness of the plate, the main structure is usually formed by bending the side walls at two opposite sides to form part of the vertical wall of the battery compartment, and then plastic material is sprayed on the surface of the main structure to form the other part of the vertical wall of the battery compartment. Therefore, the vertical walls around the battery compartment are generally discontinuous, the vertical walls on two opposite sides of the battery compartment are made of metal materials, the vertical walls on the other two sides are made of plastic materials, and the vertical walls surrounding the battery compartment only have certain bending resistance, poor torsional mechanical property, large distortion and high risk of damaging sensitive devices such as the battery and the display screen 10.

It should be noted that, whether the main structure of the middle frame 21 is formed by a die casting process or the main structure of the middle frame 21 is formed by a stamping process, the surface of the main structure of the middle frame 21 has limited compactness and flatness, and therefore, it is also generally required to spray plastic materials on the edge area and the middle local area of the main structure, and then spray paint on the surface of the plastic part to achieve the appearance effect of the middle frame 21. The plastic part may also form part of the structure of the middle frame 21, for example, a part of the standing wall forming the battery compartment, the mounting boss 130, etc., and the plastic part and the main structure together form the middle frame 21.

In view of this, this application embodiment improves structural member (for example, the middle frame 21 of cell-phone) of electronic equipment 1, through separating a plurality of splices in the main part, forms on the main part and subtracts the silo corresponding to the position of splices, splices body coupling in the main part, splice each other between the adjacent splices body, and all splices body coupling in proper order forms the barrier strip, makes the barrier strip perpendicular to the face of main part. So, utilize the material of main part self to form the concatenation body, the concatenation body splices in proper order and forms continuous, an organic whole is connected in the barrier strip of main part, after the concatenation of concatenation body splice interlocking, can not take place the displacement along the length direction of barrier strip, and can play the effect of transfer force, can guarantee the distortion intensity of barrier strip, promotes the resistance deformability of barrier strip. In addition, the barrier strip is easy to process and form, and the reliability of low cost, high efficiency and structural strength can be simultaneously considered.

Fig. 3 is a schematic front perspective view of a structural member according to an embodiment of the present disclosure; fig. 4 is a rear perspective view of the structural member of fig. 3. Referring to fig. 3 and 4, the structure 100 of the present embodiment is taken as an example of the middle frame 21 of the mobile phone, and the specific structure of the structure 100 of the present embodiment is shown. Taking the middle frame 21 of the mobile phone as an example, in this embodiment, the structural member 100 may include a structural body 100a and a mating structure 100b, the structural body 100a may be used as a main supporting structure of the structural member 100, the mating structure 100b is connected to the structural body 100a, and the mating structure 100b and the structural body 100a together form the structural member 100.

Illustratively, the material forming the structural body 100a may be a metal (alloy) material, for example, the material forming the structural body 100a may be an aluminum alloy, stainless steel, titanium alloy, or the like; the material forming the mating structure 100b may be a plastic material, for example, the material forming the mating structure 100b may be Polyethylene (PE), polypropylene (PP), polyvinyl chloride (Polyvinyl chloride, PVC), or the like. Plastic material may be attached to the surface of the structural body 100a by spraying to form the structural member 100.

Taking the middle frame 21 of the mobile phone as an example, the structural body 100a may form a majority of the middle plate 211 of the middle frame 21 and a part of the frame 212 of the middle frame 21, and plastic materials may be attached to the edge portion and a local area of the middle portion of the structural body 100a to form a matching structure 100b, where the structural body 100a and the matching structure 100b together form the complete middle frame 21.

Referring to fig. 3, the front side of the middle frame 21, that is, the front side of the middle frame 21 facing the side where the display screen 10 is located, is generally planar, and the front side of the middle plate 211 of the middle frame 21 has a higher flatness, so that the front side of the middle plate 211 supports the display screen 10 stably, and the reliability of supporting the display screen 10 by the middle frame 21 is ensured. As shown in the drawing, a step surface 2121 may be formed on a side of the bezel portion 212 of the middle frame 21 facing the display screen 10, the step surface 2121 being, for example, a ring-shaped structure, the step surface 2121 being lower than a front end of the bezel portion 212 (an end of the bezel portion 212 facing the display screen 10), an edge of the display screen 10 (for example, an edge of the protective layer located on a front surface of the display screen 10) overlapping the step surface 2121.

Referring to fig. 4, the structure of the rear surface of the middle frame 21, that is, the structure of the side of the middle frame 21 facing the rear cover 22, is shown, and the rear surface of the middle frame 21 is generally designed with a complicated protrusion structure such as the barrier rib 120, the mounting boss 130, the positioning posts 140, etc. of the battery compartment shown in the drawing. Illustratively, the protruding structure on the back of the middle frame 21 may be formed entirely by the structural body 100a, or entirely by the mating structure 100b, or formed by both the structural body 100a and the mating structure 100 b.

In addition, as shown in fig. 3 and 4, in this embodiment, taking an example that the middle frame 21 is applied to a mobile phone with a "U" shaped back cover 22, a side edge of the frame portion 212 of the middle frame 21 facing the display screen 10 is provided, and the back cover 22 may be wrapped on an outer sidewall of the frame portion 212, so that only the side edge of the frame portion 212 is exposed. It will be appreciated that in other embodiments, the middle frame 21 may be applied to a mobile phone with a rear cover 22 having a substantially flat plate shape, and the display 10, the middle frame 21 and the rear cover 22 have a sandwich structure, which is not limited in this embodiment.

FIG. 5 is a schematic view of the structural body of the structural member of FIG. 4 from one perspective; FIG. 6 is a partial block diagram of FIG. 5 at A; fig. 7 is a partially enlarged structural view at B in fig. 6.

Referring to fig. 5, in the present embodiment, the structural body 100a of the structural member 100 may include a body portion 110 and a barrier rib 120, the body portion 110 may have a substantially flat plate-like structure, and the barrier rib 120 may be vertically disposed on the body portion 110, for example, the barrier rib 120 may be perpendicular to the plate surface of the body portion 110. Taking the example that the structural body 100a is applied to the middle frame 21 of the mobile phone, the barrier ribs 120 may be vertical walls surrounding the battery compartment, and for example, the barrier ribs 120 may extend along the width direction (X direction shown in fig. 5) of the body portion 110, and the barrier ribs 120 and the side walls of the length direction (Y direction shown in fig. 5) of the body portion 110 together surround the battery compartment.

As an example, two barrier strips 120 may be disposed on the main body 110 at intervals along the length direction, the barrier strips 120 extend along the width direction of the main body 110, and the two barrier strips 120 and the side walls on two sides of the main body 110 jointly enclose a battery compartment; as another example, only one barrier rib 120 may be provided on the main body 110, the barrier rib 120 extending along the width direction of the main body 110, and the barrier rib 120, the side walls on both sides of the main body 110, and other protruding structures (or one end side wall in the longitudinal direction of the main body 110) may together enclose the battery compartment. In other examples, the main body 110 may further include a plurality of barrier ribs 120, where different barrier ribs 120 may extend along a width direction of the main body 110, along a length direction of the main body 110, or along other directions, and the barrier ribs 120 may separate other mounting structures besides the battery compartment, for example, the barrier ribs 120 may separate a region where the circuit board is mounted.

Referring to fig. 6, in the present embodiment, the barrier rib 120 is integrally formed on the body 110, and the barrier rib 120 may be formed using a plate material of the body 110. The barrier rib 120 includes a plurality of splice bodies 121 sequentially arranged along a length direction thereof, the splice bodies 121 are integrally connected to the main body 110, adjacent splice bodies 121 are spliced with each other, and each splice body 121 is sequentially spliced and interlocked to form a barrier rib 120. The splice body 121 is separated from the plate material of the main body 110, and a material reducing groove 111 matched with the splice body 121 in shape and size is formed on the main body 110 at a position corresponding to the splice body 121. In other words, the material originally located in the material reducing groove 111 on the main body 110 is separated from the plate surface of the main body 110 and integrally connected to the main body 110, so as to form a splice 121 perpendicular to the plate surface of the main body 110 and integrally connected to the main body 110 at one end.

For convenience of description, an end of the barrier rib 120 connected to the body portion 110 is hereinafter defined as a root portion of the barrier rib 120, and the other end of the barrier rib 120 opposite to the root portion thereof is defined as a top portion of the barrier rib 120.

For example, a plate-shaped profile may be first processed to form the initial structural body 100a, and for example, the initial structural body 100a may be formed by a press molding process or a die casting process. Thereafter, the main body 110 of the initial structural main body 100a is cut along the contour of the material reducing groove 111, each of the splice bodies 121 is separated, the splice bodies 121 are cut from the plate surface of the main body 110 except the root portion, the splice bodies 121 are separated from the plate surface of the main body 110 by a certain angle, for example, the splice bodies 121 are perpendicular to the plate surface of the main body 110, and each of the splice bodies 121 is spliced and interlocked in sequence to form the barrier strip 120, so as to form the main body 110 with the material reducing groove 111, and the barrier strip 120 integrally connected to the main body 110 and perpendicular to the plate surface of the main body 110 is formed. After each of the splice bodies 121 is cut and separated from the plate surface of the main body 110, the splice bodies 121 may be bent, so that the top of each of the splice bodies 121 may be moved in a direction away from the plate surface of the main body 110 until each of the splice bodies 121 is perpendicular to the plate surface of the main body 110.

In this embodiment, the plurality of splice bodies 121 are cut and separated from the main body 110, so that the splice bodies 121 are spliced and interlocked in sequence to form the barrier strips 120 perpendicular to the main body 110, and the barrier strips 120 can be used as vertical walls surrounding the battery compartment, for example. Because each splice 121 that constitutes barrier strip 120 all separates from main part 110, therefore, formed the barrier strip 120 of an organic whole connection on main part 110, joint strength between barrier strip 120 and the main part 110 is high, the uniformity is good, the barrier strip 120 that is spliced in proper order, interlock by each splice 121 forms can not take place the displacement along self length direction, and can play the effect of transmitting force, the distortion mechanical properties of barrier strip 120 has been strengthened, can promote the reliability of the anti-torsion of barrier strip 120, reduce the injury risk of barrier strip 120 to sensitive devices such as battery, display screen 10.

In addition, as shown in fig. 3 and 4, the plastic material attached to the surface of the structural body 100a may cover at least part of the protruding structure formed on the structural body 100a, for example, the plastic material may wrap the outer wall surface of the barrier rib 120 and the material reducing groove 111 formed on the cover body 110. In this way, the integrity of the formed structural member 100 can be improved, and the area of the nonfunctional opening formed on the main body 110 is reduced by covering the material reducing groove 111 with plastic material, which is helpful to increase the overall strength of the structural member 100, promote the reliability of the main body 110, and ensure the stability of the device mounted on the main body 110.

With continued reference to fig. 6, in each of the barrier ribs 120 formed by sequentially splicing and interlocking the plurality of splice bodies 121, the first end splice body 121a, the second end splice body 121b, and the plurality of intermediate splice bodies 121c may be included, the first end splice body 121a and the second end splice body 121b being located at both ends in the longitudinal direction of the barrier rib 120, respectively, and each of the intermediate splice bodies 121c being sequentially connected between the first end splice body 121a and the second end splice body 121 b. Wherein, the adjacent middle splice bodies 121c are spliced with each other, the first end splice body 121a is spliced with the middle splice body 121c adjacent to the first end splice body, and the second end splice body 121b is spliced with the middle splice body 121c adjacent to the second end splice body.

Referring to fig. 7, the intermediate spliced body 121c may include a first spliced body a and a second spliced body b, which are alternately arranged in sequence, and adjacent first and second spliced bodies a and b are spliced with each other. Among all the middle spliced bodies 121c, the shape and the size of each first spliced body a can be kept consistent, the shape and the size of each second spliced body b can be kept consistent, and the shapes of the first spliced body a and the second spliced body b are matched, so that adjacent first spliced bodies a and second spliced bodies b can be spliced with each other.

Illustratively, the heights of the first and second spliced bodies a, b, 121a and 121b may be uniform, in other words, the lengths of the first and second spliced bodies a, b, 121a and 121b from the top to the root may be uniform, so that the portions of the barrier rib 120 formed in the length direction may be maintained at the same height, the uniformity of the barrier rib 120 may be enhanced, and the appearance effect of the barrier rib 120 may be improved.

FIG. 8 is a schematic view of the structure of FIG. 5 from another perspective; fig. 9 is a partial enlarged view at C in fig. 8. Referring to fig. 8 and 9, regarding the arrangement of the material reducing grooves 111 formed on the body portion 110 of the structural body 100a, in some embodiments, the body portion 110 is formed with the material reducing grooves 111 on both sides of the barrier rib 120, that is, one part of the split bodies 121 is separated from the plate material on one side of the barrier rib 120 on the body portion 110, and the other part of the split bodies 121 is separated from the plate material on the other side of the barrier rib 120 on the body portion 110, among all the split bodies 121 constituting the barrier rib 120.

In this way, the separation of all the splice bodies 121 forming the barrier rib 120 from the plate material on the same side of the barrier rib 120 on the main body 110 is avoided, the formation of the material reduction grooves 111 on the main body 110 corresponding to the splice bodies 121 forming the barrier rib 120 on the same side of the barrier rib 120 is avoided, the structural strength of the main body 110 can be ensured, and the influence on the installation of devices on the main body 110 due to the concentration of the material reduction grooves 111 on the same side of the barrier rib 120 can be avoided. Taking the structure 100 as the middle frame 21 of the mobile phone as an example, the main body 110 is prevented from forming a large-area opening on the same side of the barrier strip 120, and the middle frame 21 can be ensured to stably and firmly support the display screen 10.

As shown in fig. 9, as an example, the subtracting grooves 111 formed on the main body 110 may be alternately arranged at intervals on both sides of the barrier rib 120, that is, for the middle split body 121c, each subtracting groove 111 forming each first split body a is located on one side of the barrier rib 120, each subtracting groove 111 forming each second split body b is located on the other side of the barrier rib 120, for the split bodies 121 located at both ends of the barrier rib 120, the subtracting grooves 111 forming the first end split body 121a and the subtracting grooves 111 forming the middle split body 121c adjacent thereto are arranged at different sides, and accordingly, the subtracting grooves 111 forming the second end split body 121b and the subtracting grooves 111 forming the middle split body 121c adjacent thereto are arranged at different sides. In this way, the material reducing grooves 111 formed on the main body 110 are uniformly distributed at intervals on two sides of the barrier rib 120, so that the phenomenon that the material reducing grooves 111 are intensively distributed is avoided, the uniformity of the strength of the main body 110 on two sides of the barrier rib 120 can be enhanced, and the reliability of the main body 110 is improved.

In other examples, the subtracting tanks 111 formed at both sides of the barrier rib 120 may be arranged in other forms, for example, the subtracting tanks 111 formed at every two adjacent splices 121 are used as a unit, and the units are alternately arranged at intervals at both sides of the barrier rib 120. Similarly, the subtracting tanks 111 formed by every adjacent three splicing bodies 121 may be one unit, the subtracting tanks 111 formed by every adjacent four splicing bodies 121 may be one unit, and the units may be alternately arranged at intervals on both sides of the barrier strip 120. Alternatively, the baffle strip 120 has a position of one unit for each two adjacent splice bodies 121 (or each three adjacent splice bodies 121, each four adjacent splice bodies 121, etc.), and a position of one splice body 121 (or three splice bodies 121, four splice bodies 121, etc.) between adjacent units, and is matched with the position of one splice body, and the baffle strip 120 has a position of one unit for each splice body 121 (or each three splice bodies 121, each four splice bodies 121, etc.) for each two splice bodies 121 (or three splice bodies 121, four splice bodies 121, etc.) between adjacent units. Alternatively, the material reducing grooves 111 formed on both sides of the barrier rib 120 may be arranged in a random manner. This embodiment is not particularly limited.

In other embodiments, all the reducing grooves 111 formed on the main body 110 corresponding to the barrier ribs 120 may be located on the same side of the barrier ribs 120, that is, all the splice bodies 121 forming the barrier ribs 120 are separated from the plate material on the same side of the barrier ribs 120 on the main body 110, on the basis that the overall strength and reliability of the main body 110 can be ensured.

For example, in the case where all the splice bodies 121 constituting the barrier rib 120 are separated from the plate material on the same side of the barrier rib 120 on the main body 110, all the material reducing grooves 111 on one side of the barrier rib 120 on the main body 110 may be sequentially connected, for example, all the material reducing grooves 111 on one side of the barrier rib 120 together form a long-strip-shaped opening. It should be noted that the plastic material attached to the surface of the structural body 100a may cover the elongated opening formed by the subtracting groove 111, in other words, the plastic material may fill the elongated opening formed by the subtracting groove 111, so that the strength of the body 110 at the location of the subtracting groove 111 can be ensured, and the reliability of the body 110 can be ensured.

FIG. 10 is a third view of the structure body of FIG. 5; fig. 11 is a partially enlarged structural view of D in fig. 10; FIG. 12 is a partial cross-sectional view of a structural body provided in an embodiment of the present application; FIG. 13 is a partially enlarged block diagram of FIG. 6 at E; fig. 14 is a partially enlarged structural view at F in fig. 6.

Referring to fig. 10 and 11, as for the specific structure of the splice body 121, the splice body 121 may include a connection portion 1211 and a blocking portion 1212, the splice body 121 is integrally connected to the main body 110 by means of the connection portion 1211, the blocking portion 1212 is connected to one end of the connection portion 1211 facing away from the main body 110, the blocking portion 1212 extends in a direction facing away from the plate surface of the main body 110, the blocking portions 1212 of adjacent splice bodies 121 are spliced with each other, and the blocking portions 1212 of each splice body 121 are sequentially spliced and interlocked to form the blocking strip 120. For example, the barrier 1212 of the splice body 121 may be perpendicular to the plate surface of the main body 110 to form a barrier rib 120 perpendicular to the plate surface of the main body 110; also, the tip end surfaces of the barrier portions 1212 of the respective splice bodies 121 constituting the barrier rib 120 (the side end surfaces of the barrier portions 1212 facing away from the main body portion 110) may be flush to form the barrier rib 120 of uniform height.

Referring to fig. 12, the connection portion 1211 of the splice body 121 may include a first bending section 12111 and a vertical section 12112 connected in sequence, one end of the first bending section 12111 is integrally connected to the main body 110, the first bending section 12111 is bent in a direction away from the plate surface of the main body 110, the vertical section 12112 is connected to the other end of the first bending section 12111, and the blocking portion 1212 is connected to one end of the vertical section 12112 away from the first bending section 12111. The connecting portion 1211 enables the vertical portion 12112 to extend in a direction perpendicular to the plate surface of the main body portion 110 by forming the first bent portion 12111, so that the barrier portion 1212 is also erected on the main body portion 110 in a direction perpendicular to the plate surface of the main body portion 110 by the supporting action of the vertical portion 12112, so that the barrier strips 120 perpendicular to the plate surface of the main body portion 110 are formed by mutually splicing the barrier portions 1212 of the respective splice bodies 121.

As shown in fig. 11 and 12, the splice body 121 has a gap between the bottom end surface of the blocking portion 1212 (the end surface of the blocking portion 1212 facing the main body 110) and the main body 110 due to the vertical section 12112 of the connecting portion 1211, and the gap is a reserved space for forming the splice body 121, so that the blocking portion 1212 can move relative to the plate surface of the main body 110, in other words, the connecting section of the splice body 121 can be smoothly bent to form the first bending section 12111, and the bottom end surface of the blocking portion 1212 can be prevented from contacting the plate surface of the main body 110 to affect the smooth separation between the splice body 121 and the main body 110. In addition, the gap may also reserve enough space for splicing and interlocking between the adjacent splice bodies 121, for example, the splice portions 12122 of the barrier portions 1212 of the adjacent splice bodies 121 may be pressed to deform the splice portions 12122, thereby tightly connecting the barrier portions 1212 of the adjacent splice bodies 121.

With continued reference to fig. 11, the barrier portion 1212 of the splice body 121 may include a main plate portion 12121 and a splice portion 12122. The main plate portion 12121 serves as a main structure of the barrier portion 1212, and the main plate portion 12121 may have a large surface area, and for each of the splice bodies 121 constituting the barrier rib 120, the main plate portion 12121 provides a main supporting area for the splice bodies 121, so that each of the splice bodies 121 is spliced in sequence to form the barrier rib 120 in a long strip shape. The splice parts are located at the sides of the main plate part 12121, and the adjacent splice bodies 121 are spliced with each other through the splice parts 12122, that is, the shapes and sizes of the splice parts 12122 of the adjacent splice bodies 121 spliced with each other need to be matched with each other to achieve the splicing of the adjacent splice bodies 121.

For the middle splice 121c, since the splice 121 is spliced with both sides of the middle splice 121c, both sides of the main board 12121 of the middle splice 121c have the splice 12122, and the splice 12122 on both sides of the middle splice 121c is used for splicing with the adjacent splices 121 on both sides thereof. For the first end effector 121a and the second end effector 121b, the first end effector 121a and the second end effector 121b are located at both ends of the barrier rib 120, respectively, and the side of the first end effector 121a facing the intermediate effector 121c is spliced with the adjacent intermediate effector 121c, and thus, only the side of the main plate portion 12121 of the first end effector 121a facing the intermediate effector 121c is provided with the splice portion 12122, and the splice portion 12122 is spliced with the splice portion 12122 provided on the side of the main plate portion 12121 of the adjacent intermediate effector 121c facing the first end effector 121 a; similarly, the side of the second end effector 121b facing the intermediate effector 121c is spliced with the adjacent intermediate effector 121c, and thus, only the side of the main plate portion 12121 of the second end effector 121b facing the intermediate effector 121c is provided with the splice portion 12122, and the splice portion 12122 is spliced with the splice portion 12122 provided on the side of the main plate portion 12121 of the adjacent intermediate effector 121c facing the second effector b.

With continued reference to fig. 11, in order to achieve mutual stitching between adjacent tiles 121, the tiles 12122 of the tiles 121 may include a first tile 12122a and a second tile 12122b, the first tile 12122a and the second tile 12122b being shaped and sized to match each other. For the adjacent two splice bodies 121, the splice portion 12122 of one of the two splice bodies 121 (the side spliced with the adjacent splice body 121) is a first splice portion 12122a, the splice portion 12122 of the other (the side spliced with the adjacent splice body 121) is a second splice portion 12122b, and the adjacent first splice portion 12122a and second splice portion 12122b are spliced with each other to achieve mutual splicing between the adjacent splice bodies 121.

The first splicing portion 12122a may include a first transverse segment c and a first vertical segment d, the first transverse segment c is connected to a side wall of the main board 12121 and extends to a side of the main board 12121, one end of the first vertical segment d is connected to an end of the first transverse segment c away from the main board 12121, and the other end of the first vertical segment d extends in a direction away from the board surface of the main body 110. For example, the extending direction of the first transverse section c is parallel to the plate surface of the main body 110, and the extending direction of the first vertical section d is perpendicular to the plate surface of the main body 110. The first transverse section c, the first vertical section d and the side walls of the corresponding sides of the main board 12121 together define a first splice groove (not shown in the drawings), and the notch of the first splice groove faces away from the board surface of the main body 110.

The second splicing portion 12122b may include a second transverse segment e and a second vertical segment f, the second very short segment being connected to a side wall of the main board portion 12121 and extending to a side of the main board portion 12121, one end of the second vertical segment f being connected to an end of the second transverse segment e remote from the main board portion 12121, and the other end of the second vertical segment f extending toward a board surface of the main body portion 110, in cooperation with the first splicing portion 12122 a. For example, the second transverse section e extends in a direction parallel to the plate surface of the main body 110, and the second vertical section f extends in a direction perpendicular to the plate surface of the main body 110. The second transverse section e, the second vertical section f and the side walls of the main plate portion 12121 on the respective sides together define a second splice groove (not shown in the drawings), and the notch of the second splice groove faces the plate surface of the main body portion 110.

The first vertical section d of the first splice 12122a is inserted into the second splice groove, in other words, the first vertical section d of the first splice 12122a is inserted into the gap between the second vertical section f of the second splice 12122b and the main plate 12121; accordingly, the second vertical section f of the second splice 12122b is inserted into the first splice groove, in other words, the second vertical section f of the second splice 12122b is inserted into the space between the first vertical section d of the first splice 12122a and the main plate 12121. In this way, by the mutual insertion of the first and second splice parts 12122a and 12122b, the mutual splice between the adjacent splice bodies 121 is achieved.

It will be appreciated that, along the height direction of the formed barrier rib 120, the first transverse section c of the first splice 12122a should be lower than the second transverse section e of the second splice 12122b, in other words, the first transverse section c is closer to the plate surface of the main plate 12121 than the second transverse section e, so that the notches of the formed first splice groove and second splice groove can be opposite, enabling the insertion of the first vertical section d into the second splice groove and the insertion of the second vertical section f into the first splice groove.

With continued reference to fig. 11, in some embodiments, a bottom end surface of the first transverse section c of the first splice 12122a (a side end surface of the first transverse section c facing the main body portion 110) may be flush with a bottom end surface of the main plate portion 12121 (a side end surface of the main plate portion 12121 facing the main body portion 110); similarly, the tip end face of the second transverse section e of the second splice portion 12122b (the side end face of the second transverse section e facing away from the main body portion 110) may be identical to the tip end face of the main plate portion 12121 (the side end face of the main plate portion 12121 facing away from the main body portion 110). In this way, the structure of the barrier rib 120 formed by sequentially splicing and interlocking the splice bodies 121 is more regular and has higher flatness, and the strength and stress uniformity of the barrier rib 120 can be improved.

In addition, the first vertical section d of the first splice 12122a and the second transverse section e of the second splice 12122b may be in close contact, and there is no gap between the first vertical section d and the second transverse section e, in other words, the first vertical section d of the first splice 12122a occupies the second splice groove completely; similarly, the second vertical section f of the second splice 12122b may be in close contact with the first lateral section c of the first splice 12122a, and there is no gap between the second vertical section f and the first lateral section c, in other words, the second vertical section f of the second splice 12122b occupies the first splice slot completely. In this way, no gap exists between the barrier portions 1212 of the adjacent splice bodies 121, and the barrier rib 120 formed by splicing the barrier portions 1212 of each splice body 121 has better integrity and higher strength.

In order to make the connection between the first and second splice parts 12122a and 12122b more secure, referring to fig. 11, in this embodiment, the width of the first vertical section d may be gradually increased from one end of the first vertical section d connected to the first horizontal section c to the other end of the first vertical section d; the width of the second vertical section f can also be gradually increased from one end of the second vertical section f connected with the second transverse section e to the other end of the second vertical section f, which is matched with the first vertical section d. In this way, the two adjacent splice bodies 121 are mutually held, so that separation between the two splice bodies along the height direction of the barrier strip 120 can be prevented, the reliability of splicing between the splice bodies 121 is ensured, and the stability of the barrier strip 120 is enhanced.

As an example, the first vertical section d of the first splice 12122a from one end thereof connected to the first transverse section c to the other end thereof, and an inner sidewall of the first vertical section d (a sidewall of one side of the first vertical section d surrounding the first splice groove) may be inclined toward the corresponding main plate portion 12121; in accordance therewith, the second vertical section f of the second splice 12122b may also be inclined toward the corresponding main plate portion 12121 from one end thereof connected to the second transverse section e to the other end thereof (the side wall of the second splice groove is defined by the second vertical section f). As another example, the first vertical section d of the first splice 12122a from one end thereof connected to the first transverse section c to the other end thereof, and an outer side wall (the other side wall opposite to the inner side wall of the first vertical section d) of the first vertical section d may be inclined toward the main plate portion 12121 of the adjacent splice 121; in correspondence thereto, the second vertical section f of the second splice 12122b from one end thereof connected to the second transverse section e to the other end thereof, and the outer side wall (the other side wall opposite to the inner side wall of the second vertical section f) of the second vertical section f may be inclined toward the main plate portion 12121 of the adjacent splice 121.

With continued reference to fig. 11, for the middle splice 121c having the splice 12122 on both sides of the main plate portion 12121, in some embodiments, both sides of the main plate portion 12121 of the first splice a may be the first splice 12122a, and correspondingly, both sides of the main plate portion 12121 of the second splice b may be the second splice 12122b; at this time, in each of the intermediate spliced bodies 121c constituting the barrier rib 120, the shapes and the sizes of all the first spliced bodies a may be kept uniform, the shapes and the sizes of all the second spliced bodies b may be kept uniform, and the shapes of the first spliced body a and the second spliced body b are different. In other embodiments, the two sides of the main plate portion 12121 of the first splice body a may be the first splice portion 12122a and the second splice portion 12122b, respectively, and correspondingly, the two sides of the main plate portion 12121 of the second splice body b may also be the first splice portion 12122a and the second splice portion 12122b, respectively; at this time, the shapes and sizes of all the first and second split bodies a and b may be uniform among the intermediate split bodies 121c constituting the barrier rib 120.

In some embodiments, two ends of the barrier rib 120 may extend to opposite sides of the body portion 110, for example, two ends of the barrier rib 120 extend to two sides of the body portion 110 in a width direction (see X direction in fig. 5), and two ends of the barrier rib 120 are respectively connected to opposite sides of the body portion 110 to fixedly limit the barrier rib 120 through the body portion 110, thereby ensuring the twisting strength of the barrier rib 120. Taking the structure 100 as the middle frame 21 of the mobile phone as an example, specifically taking two barrier strips 120 (as shown in fig. 5, 8 or 10) arranged at intervals along the length direction of the structure 100 as an example, the two barrier strips 120 may extend to two opposite sides of the main body 110 along the width direction of the main body 110, and the two barrier strips 120 and two side walls of the main body 110 in the length direction enclose a battery compartment together, so that the standing walls enclosing the battery compartment form a whole-circumference integrated structure.

The side walls at two ends of the main body 110 corresponding to the barrier strips 120 respectively form a first side wall 112 and a second side wall 113 (see fig. 5, 8 or 10), the first side wall 112 and the second side wall 113 are, for example, retaining walls formed by bending and having a cross-sectional shape similar to a U, taking the structural member 100 as a middle frame 21 of a mobile phone as an example, the first side wall 112 and the second side wall 113 are both protruded on the back surface of the main body 110 (the surface of the main body 110 facing the rear cover 22), and the first side wall 112, the second side wall 113 and the barrier strips 120 are sequentially connected to form a vertical wall of the battery compartment, so as to form a full-circumference integrated wall structure. The first side fence 112 and the second side fence 113 support and fix the two ends of the barrier strip 120 respectively, so that displacement of the barrier strip 120 in the length direction is reduced or even avoided, the torsional mechanical property of the barrier strip 120 is improved, and the torsional reliability of the barrier strip 120 is improved.

Moreover, when the structural member 100 is impacted, the first side fence 112 and the second side fence 113 can transmit part of the acting force (shearing force) to the barrier rib 120, and the first side fence 112, the barrier rib 120 and the second side fence 113 bear torsion together so as to generate larger deformation resistance. Because the barrier rib 120 is formed by sequentially splicing a plurality of splice bodies 121 integrally connected with the main body 110, the splice bodies 121 can transmit acting force mutually, and the splice bodies 121 can transmit acting force to the main body 110, therefore, acting force received by the barrier rib 120 can be uniformly dispersed to the main body 110 through each splice body 121, so that the twisting strength of the barrier rib 120 is ensured, and the reliability of the barrier rib 120 is improved.

Referring to fig. 13, in order to achieve connection between the first end connector 121a of the barrier rib 120 and the first side wall 112 of the main body 110, the barrier 1212 of the first end connector 121a may further include a first locking portion 12123, and the first locking portion 12123 may be connected to the connection portion 1211 of the first end connector 121a, for example, and the first locking portion 12123 is located on a side of the first end connector 121a adjacent to the first side wall 112, and the first end connector 121a is connected to the first side wall 112 through the first locking portion 12123. Similarly, referring to fig. 14, in order to connect the second end connector 121b of the barrier rib 120 and the second side rail 113 of the main body 110, the barrier 1212 of the second end connector 121b may further include a second locking portion 12124, and the second locking portion 12124 may be connected to the connecting portion 1211 of the second end connector 121b, for example, and the second locking portion 12124 may be located on a side of the second end connector 121b adjacent to the second side rail 113, where the second end connector 121b is connected to the second side rail 113 through the second locking portion 12124.

As an example, fig. 13 shows that the first side wall stopper 112 is connected with a positioning retaining wall 114, the positioning retaining wall 114 is connected to, for example, an inner side wall of the first side wall stopper 112 (a side wall of the first side wall stopper 112 facing a center of the main body 110), the first locking portion 12123 of the first end splicing body 121a is provided with a positioning groove g, a notch of the positioning groove g may face the main body 110, and the positioning groove g is clamped on an outer wall surface of the positioning retaining wall 114 from a top end surface (a side end surface of the positioning retaining wall 114 facing away from the main body 110) of the positioning retaining wall 114, in other words, the positioning retaining wall 114 is clamped into the positioning groove g, so as to realize connection of the first end splicing body 121a and the first side wall stopper 112. The positioning retaining wall 114 may be integrally connected to the first side wall 112, for example, the positioning retaining wall 114 may be formed by using a plate of the main body 110, so as to realize an integral connection between the barrier strip 120 and the main body 110, and enhance the twisting strength of the barrier strip 120.

The positioning retaining wall 114 may include an integrally formed connecting wall 1141 and a positioning wall 1142, the connecting wall 1141 is integrally connected to the first side wall baffle 112, the positioning wall 1142 is integrally connected to the connecting wall 1141, and the positioning wall 1142 may extend along a direction perpendicular to a length direction of the barrier strip 120, and the positioning groove g is sleeved on an outer wall surface of the positioning wall 1142, or the positioning wall 1142 is clamped into the positioning groove g, so as to realize the clamping connection between the first locking portion 12123 of the first end splicing body 121a and the positioning retaining wall 114.

As another example, fig. 14 shows that the second side wall 113 is provided with a positioning opening h, and the second locking portion 12124 of the second end splicing body 121b is inserted into the positioning opening h of the second side wall 113, so as to realize integral connection between the second end splicing body 121b and the second side wall 113, and enhance the torsional strength of the barrier rib 120. The second locking portion 12124 of the second end fitting body 121b may include an extension segment and a positioning segment i, where the extension segment and the positioning segment i are sequentially connected to the connection portion 1211 of the second end fitting body 121b, the extension segment extends toward the second side shielding 113, and the positioning segment i is inserted into the positioning opening h of the second side shielding 113 downward, so as to achieve the plugging of the second locking portion 12124 of the second end fitting body 121b with the positioning opening h.

The extension section of the second locking portion 12124 of the second end fitting 121b may include a second bent section j and a horizontal section k, which are sequentially connected to the connection portion 1211 of the second end fitting 121b, and the positioning section i of the second locking portion 12124 may be connected to the other end of the horizontal section k. The second bending section j may be bent towards a side where the second side shielding 113 is located, the horizontal section k may extend in a direction parallel to the board surface of the main body 110, the horizontal section k horizontally extends to the second side shielding 113 and extends above the positioning opening h, and the positioning section i may be inserted into the positioning opening h perpendicularly to the horizontal section k.

For example, when the second end splice 121b is formed by cutting the plate material of the main body 110, the strip-shaped material may be cut first as the extension section of the second locking portion 12124, that is, the portion of the main body 110 corresponding to the extension section of the second locking portion 12124 is a straight groove section, and as shown in fig. 14, the groove section of the extension section of the second locking portion 12124 corresponding to the groove 111 is, for example, a straight groove section extending in a direction perpendicular to the length direction of the barrier rib 120. Then, the second locking portion 12124 having the second bent portion j and the horizontal portion k is formed by bending the straight strip of material.

It should be understood that, although two ends of the barrier strip 120 are shown in fig. 13 and 14 to be connected to the first side wall barrier 112 and the second side wall barrier 113 respectively through different structures, in practical application, two ends of the barrier strip 120 may be connected to the first side wall barrier 112 and the second side wall barrier 113 by adopting the same structure, for example, the first side wall barrier 112 and the second side wall barrier 113 are both connected to the positioning retaining wall 114, and the first locking portion 12123 of the first end splicing body 121a and the second locking portion 12124 of the second end splicing body 121b are both provided with positioning grooves g that are sleeved on the outer wall surfaces of the positioning retaining wall 114 on the corresponding sides; alternatively, the first side wall 112 and the second side wall 113 are both provided with positioning openings h, and the first locking portion 12123 and the second locking portion 12124 are both inserted into the positioning openings h through the positioning section i, which is not limited in this embodiment.

The embodiment of the present application also provides a manufacturing method of the structural member (hereinafter referred to as a manufacturing method), which is used for manufacturing and forming the structural member 100, and the manufacturing method is described in detail below.

FIG. 15 is a flow chart of steps of a method of manufacturing according to an embodiment of the present disclosure; fig. 16 is a process flow diagram of a manufacturing method according to an embodiment of the present application.

Referring to fig. 15, the manufacturing method includes the steps of:

s100, providing an initial structural main body with a main body part.

First, as shown in fig. 5, 8 or 10, an initial structural body 100a is provided, the initial structural body 100a has a substantially plate-like structure as a whole, and the initial structural body 100a is used to manufacture the structural body 100a for forming the structural member 100, and the initial structural body 100a is manufactured from a metal material such as an aluminum alloy, a stainless steel, a titanium alloy, or the like. The initial structural body 100a may be obtained by a press molding process from an alloy plate material, or the initial structural body 100a may be obtained by a die casting process from a liquid metal filled in the die 3, for example.

The initial structural body 100a has a body portion 110, the body portion 110 is substantially flat, a peripheral area of the body portion 110 corresponding to a portion where the barrier rib 120 is located may be a solid portion, and then the splice bodies 121 are separated by cutting the area of the body portion 110.

S200, cutting the initial structural main body to separate a plurality of spliced bodies which are sequentially arranged on the main body part, so that the spliced bodies are integrally connected to the main body part and form a preset angle with the plate surface of the main body part.

Referring to fig. 16 (a), next, the initial structural body 100a is fixed in the mold 3, for example, as shown in the figure, the initial structural body 100a is sandwiched between the upper mold 31 and the lower mold 32. After the initial structural body 100a is fixed, the initial structural body 100a is cut, specifically, the peripheral area of the body 110 corresponding to the position where the barrier strip 120 is located is cut, so that each spliced body 121 is separated from the body 110, so that each spliced body 121 is spliced sequentially to form the barrier strip 120.

The body 110 may be cut along the contour of each of the split bodies 121 to be separated, and the split bodies 121 may be cut and separated from the body 110 at other portions of the split bodies 121 except for the root portion connected to the body 110, so that each of the split bodies 121 is separated from the body 110 and each of the split bodies 121 is uniformly connected to the body 110.

After each of the splice bodies 121 is cut and separated, the surface of the splice body 121 away from the main body 110 may be a predetermined angle, which may be a small angle between 10 ° and 25 °, for example, the predetermined angle is 12 °, 15 °, 18 °, 20 °, 22 °, 24 °, or the like, by means of a cutter 4 or other tools. By separating the splice body 121 from the plate surface where the main body 110 is located by a small angle, this corresponds to tilting the splice body 121 by a small angle, so that a space is provided for the subsequent bending process of the splice body 121. After the split joint body 121 is cut and separated, the angle at which the split joint body 121 is separated from the plate surface where the main body 110 is located should be prevented from being too large, so as to prevent the split joint body 121 from breaking.

S300, bending the spliced bodies to enable the spliced bodies to be perpendicular to the plate surface of the main body part, and mutually splicing adjacent spliced bodies to form the barrier strips.

After separating each of the split bodies 121 from the main body 110 and separating the split bodies 121 from the main body 110 by a predetermined angle, the split bodies 121 are bent so that each of the split bodies 121 is bent to be perpendicular to the plate surface of the main body 110. And, adjacent splice bodies 121 are spliced with each other to form barrier ribs 120 perpendicular to the plate surface of the main body 110.

It should be noted that, from the process of cutting and separating each of the splice bodies 121 on the main body 110, to the process of bending each of the splice bodies 121 and splicing them in sequence to form the barrier strip 120, the process can be performed only by using a press forming process, which is simple to operate and has high efficiency, and since the splice bodies 121 are separated from the main body 110, no additional plate material is required, so that the cost is low. In addition, the application range of the press forming process is wide, the material selectivity of the structural body 100a is high, and the thickness of the plate of the structural body 100a also has a larger design space.

Depending on the strength of the material from which the initial structural body 100a is made, the splice 121 may be bent one or more times to form a splice 121 that is ultimately perpendicular to the plate surface of the body 110. For materials with low strength and good bending performance, the splice body 121 can be bent to be perpendicular to the plate surface of the main body 110 at one time; for the material with higher strength and general bending performance, the splicing body 121 can be gradually bent to be perpendicular to the plate surface of the main body 110 for many times, so that the splicing body 121 is prevented from being broken, the controllability of the bending process is high, and the bending accuracy can be improved.

In fig. 16, after separating the splice body 121, the splice body 121 is bent three times so that the splice body 121 is perpendicular to the plate surface of the main body 110. Referring to fig. 16 (b), the first pre-bending process may be performed on the splicing body 121, so that the splicing body 121 and the main body 110 form a first preset angle, and the first preset angle is smaller than 90 °, that is, the first pre-bending process performs a small-angle bending on the splicing body 121. Illustratively, the first predetermined angle may be between 35 ° -55 °, for example, 40 °, 45 °, or 50 °.

Referring to fig. 16 (c), after the first pre-bending process is performed on the split body 121, the second pre-bending process is performed on the split body 121 to make the split body 121 form a second preset angle with the main body 110, the second preset angle is larger than the first preset angle and smaller than 90 °, that is, the bending angle of the split body 121 is increased by the second pre-bending process. Illustratively, the second preset angle may be between 60 ° -85 °, for example, 65 °, 70 °, 75 °, or 80 °. In some embodiments, after the second pre-bending treatment is performed on the splice bodies 121, the splice positions between adjacent splice bodies 121 may be aligned in advance, so as to facilitate the subsequent fast implementation of splicing and interlocking between the splice bodies 121, and also help to improve the splicing accuracy between the splice bodies 121.

Referring to fig. 16 (d), after the second pre-bending process is performed on the joint body 121, the final bending process is performed on the joint body 121, and the joint body 121 is bent to be perpendicular to the plate surface of the main body 110. And, sequential splicing and interlocking between the splice bodies 121 are achieved to form the barrier rib 120 perpendicular to the plate surface of the main body 110.

For example, the spliced body 121 is bent step by step in a multiple-time manner, and different dies 3 may be designed due to different bending angles of each bending process, and different structures of cavities formed between the upper die 31 and the lower die 32 of different dies 3 may be designed to adapt to the bending angles required by the corresponding bending process.

It should be understood that, in order to achieve smooth splicing between the splice bodies 121, a small gap may be reserved between adjacent splice bodies 121 as a splicing gap, so as to prevent the adjacent splice bodies 121 from interfering with each other, and the barrier rib 120 cannot be formed by splicing. In this regard, referring to fig. 16 (e), after the splicing between the splice bodies 121 is completed, the splice portions between the adjacent splice bodies 121 may be pressed to deform the material of the splice portions between the splice bodies 121 (the aforementioned splice portions 12122 of the splice bodies 121) to a certain extent, thereby tightly connecting the adjacent splice bodies 121, ensuring the integrity and consistency of the formed barrier rib 120, and improving the structural strength and buckling resistance of the barrier rib 120.

For example, when the die 3 is used to extrude the splice between the adjacent splice bodies 121, the upper die 31 may be configured to include an outer die 311 and an inner die 312, and the outer die 311 and the inner die 312 may be in a tapered surface matching manner, and the acting force is transmitted to the inner die 312 through the movement of the outer die 311, so that the splice between the splice bodies 121 is extruded by means of the inner die 312.

In addition, since the splice between the adjacent splice bodies 121 is deformed to some extent after the extrusion, the flatness and consistency of the barrier rib 120 formed are affected. Thus, after the pressing process, the forming barrier rib 120 may further include processes of shaping, cutting off surplus material, polishing, deburring, cleaning, and the like.

After the barrier ribs 120 are formed on the body portion 110, the final structural body 100a is formed. After forming the structural body 100a, spraying plastic materials on the edge area and the middle local area of the structural body 100a may be further included to form a matching structure 100b wrapped on the surface of the structural body 100a, where the structural body 100a and the matching structure 100b together form the structural member 100, and the details are not repeated here.

In the description of the embodiments of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, indirectly connected through an intermediary, or may be in communication with each other between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to the specific circumstances.

The terms first, second, third, fourth and the like in the description and in the claims of embodiments of the application and in the above-described figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

Claims

1. The structural member is characterized by comprising a main body part and at least one barrier strip, wherein the barrier strip is integrally formed on the main body part and is perpendicular to the plate surface of the main body part;

the barrier strip comprises a plurality of splice bodies which are sequentially arranged along the length direction of the barrier strip, the splice bodies are integrally connected with the main body part, and adjacent splice bodies are spliced with each other; the splice body is separated from the main body part, a material reducing groove is formed in the main body part corresponding to the splice body, and the material reducing groove is matched with the splice body in shape.

2. The structural member of claim 1 wherein the splice comprises a first end splice, a second end splice, and a plurality of intermediate splices, the first end splice and the second end splice being located at respective ends of the barrier strip in a length direction, the plurality of intermediate splices being connected in sequence between the first end splice and the second end splice;

The middle splice body is mutually spliced, the first end splice body is mutually spliced with the adjacent middle splice body, and the second end splice body is mutually spliced with the adjacent middle splice body.

3. The structural member of claim 2 wherein the intermediate splice comprises a first splice and a second splice, the first splice and the second splice alternating in sequence and spliced to one another.

4. A structural member according to claim 3 wherein the splice comprises a connecting portion and a blocking portion, one end of the connecting portion is integrally connected to the main body portion, the blocking portion is connected to the other end of the connecting portion, the blocking portion extends in a direction away from the plate surface of the main body portion, and the blocking portions of adjacent splice are spliced with each other.

5. The structural member of claim 4 wherein the connection comprises a first bent section and a vertical section connected in sequence;

one end of the first bending section is integrally connected to the main body part, the vertical section is connected to the other end of the first bending section, the vertical section is perpendicular to the plate surface of the main body part, and the baffle part is connected to one end of the vertical section, which is away from the first bending section.

6. The structural member of claim 4 wherein a gap is provided between a bottom end surface of the barrier portion and the body portion; the bottom end surface of the baffle part is one side end surface of the baffle part facing the main body part.

7. The structural member of claim 4 wherein said barrier includes a main panel portion and a splice portion, said splice portions of said intermediate splice being located on either side of said main panel portion, said splice portions of said first and second end splices being located on a side of said main panel portion facing said intermediate splice, said splice portions of adjacent said splices being spliced to each other.

8. The structural member of claim 7 wherein the splice comprises a first splice and a second splice, the first splice and the second splice being spliced to one another;

The second splicing part comprises a second transverse section and a second vertical section, the second transverse section is connected to the side wall of the main board part and extends out to the side of the main board part, one end of the second vertical section is connected to one end, far away from the main board part, of the second transverse section, and the other end of the second vertical section extends towards the board surface of the main board part;

9. The structural member of claim 8 wherein the width of the first vertical section increases gradually from one end of the first vertical section connected to the first transverse section to the other end of the first vertical section;

the width of the second vertical section gradually increases from one end of the second vertical section connected with the second transverse section to the other end of the second vertical section.

10. The structural member of claim 8 wherein the first vertical section is in intimate contact with the second transverse section and/or the second vertical section is in intimate contact with the first transverse section.

11. The structural member of claim 8 wherein the bottom end face of the first transverse section is flush with the bottom end face of the main panel portion; and/or, the top end surface of the second transverse section is flush with the top end surface of the main board part.

12. The structural member of claim 8 wherein the two sides of the main panel portion of the first splice are the first splice and the two sides of the main panel portion of the second splice are the second splice.

13. The structural member of claim 8 wherein the first splice body has the first and second splice portions on either side of the main panel portion, and the second splice body has the first and second splice portions on either side of the main panel portion.

14. The structural member of any one of claims 7 to 13 wherein the first end tab is connected to a first side rail of the main body portion and the second end tab is connected to a second side rail of the main body portion; the first side wall baffle and the second side wall baffle are respectively positioned on two opposite sides of the main body part.

15. The structural member of claim 14 wherein the barrier portion of the first end splice further comprises a first locking portion, the first locking portion being connected to the connecting portion and the first locking portion and the first side barrier being connected;

16. The structural member of claim 15 wherein at least one of the first side wall and the second side wall is integrally connected with a locating retaining wall, at least one of the first locking portion and the second locking portion is provided with a locating groove, a notch of the locating groove faces the main body portion, and the locating retaining wall is clamped into the locating groove.

17. The structural member of claim 16 wherein said retaining wall comprises an integrally formed connecting wall and a retaining wall, at least one of said first side wall and said second side wall being integrally connected to said connecting wall, said retaining wall being connected to said connecting wall and extending in a direction perpendicular to said barrier strip, said retaining wall being snapped into said retaining groove.

18. The structural member of claim 15 wherein at least one of the first and second side rails is provided with a locating opening, at least one of the first and second locking portions including an extension and a locating section connected in sequence to the connecting portion, the extension extending to a side wall of the main body portion, the locating section being inserted into the locating opening.

19. The structural member of claim 18 wherein the extension section includes a second bent section and a horizontal section connected in sequence, one end of the second bent section being connected to the connecting portion, the horizontal section being connected to the other end of the second bent section, the horizontal section extending horizontally toward the side wall of the main body portion.

20. The structural member of any one of claims 1 to 13 wherein the barrier strip has said relief slots on both sides.

21. The structural member of claim 20 wherein the subtracting channels are alternately spaced on either side of the barrier strip.

22. The structural member of any one of claims 1 to 13 wherein the relief slots are located on the same side of the barrier strip.

23. A method of making a structural member for forming a structural member according to any one of claims 1 to 22, comprising:

providing an initial structural body having a body portion;

cutting the initial structural main body to separate a plurality of spliced bodies which are sequentially arranged on the main body part, so that the spliced bodies are integrally connected to the main body part and form a preset angle with the plate surface of the main body part;

24. The method of manufacturing a structural member according to claim 23, wherein the bending the spliced body includes:

and performing final bending treatment on the spliced body to enable the spliced body to be perpendicular to the plate surface of the main body part.

25. The method of manufacturing a structural member according to claim 24, further comprising, after the first pre-bending treatment is performed on the spliced body, before the final bending treatment:

performing secondary pre-bending treatment on the spliced body to enable the spliced body and the plate surface of the main body to form a second preset angle; wherein the second preset angle is greater than the first preset angle and less than 90 °.

26. The method of manufacturing a structural member according to any one of claims 23 to 25, further comprising, after subjecting the spliced body to a final bending process:

27. An electronic device comprising the structural member of any one of claims 1-22.