CN212342746U

CN212342746U - Middle frame assembly and electronic equipment

Info

Publication number: CN212342746U
Application number: CN202021373720.XU
Authority: CN
Inventors: 赵斌
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2021-01-12
Anticipated expiration: 2030-07-13

Abstract

The application provides a center subassembly and electronic equipment. The center subassembly includes: a middle frame having a battery compartment; the fixing piece is arranged in the battery bin; and the flexible circuit board is at least partially attached and fixed on the fixing piece, the first end of the flexible circuit board is used for connecting the battery, and the second end of the flexible circuit board is used for connecting the mainboard. The application provides a center subassembly and electronic equipment can make the electric connection reliability between battery and the mainboard higher.

Description

Middle frame assembly and electronic equipment

Technical Field

The application relates to the technical field of electronic equipment, in particular to a middle frame assembly and electronic equipment.

Background

The batteries installed in the electronic device are usually mass-produced batteries with a specific structure, and the electrical connection terminals of the batteries need to be connected with the electrical connection terminals on the motherboard, so as to supply power to the whole electronic device. However, the electrical connection terminal of the battery in mass production is difficult to be directly and tightly buckled with the electrical connection terminal of the motherboard, and therefore, how to better realize the electrical connection between the electrical connection terminal of the battery and the motherboard is buckled, so as to improve the reliability of the electronic device becomes a technical problem to be solved.

SUMMERY OF THE UTILITY MODEL

The application provides a middle frame assembly and electronic equipment with high reliability of electric connection between a battery and a mainboard.

In one aspect, the present application provides a center frame assembly, comprising:

a middle frame having a battery compartment;

the fixing piece is arranged in the battery bin; and

the flexible circuit board is at least partially attached to the fixing piece, the first end of the flexible circuit board is used for being connected with the battery, and the second end of the flexible circuit board is used for being connected with the mainboard.

On the other hand, this application still provides an electronic equipment, include center subassembly, mainboard and battery, the flexible circuit board electricity of center subassembly connect the mainboard with the battery.

Through set up flexible circuit board on the center, flexible circuit board's one end is connected with the battery, and flexible circuit board's the other end is connected with the mainboard to the battery of solution volume production and the unable problem of direct lock of mainboard. Furthermore, through set up the mounting in the battery compartment of center, will at least part of flexible circuit board laminating on the mounting for the mounting has certain holding power to flexible circuit board, and then improves flexible circuit board's intensity and stability, solves flexible circuit board's fixed problem.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below.

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

Fig. 2 is a schematic structural diagram of a middle frame assembly of the electronic device shown in fig. 1.

Fig. 3 is an exploded view of the center frame assembly shown in fig. 2.

Fig. 4 is a schematic structural diagram of a middle frame of the middle frame assembly shown in fig. 2.

FIG. 5 is a first perspective view of the fixed member of the center frame assembly of FIG. 2.

FIG. 6 is a second perspective view of the fixed member of the center frame assembly of FIG. 2.

Fig. 7 is a schematic structural view of a flexible circuit board in the middle frame assembly shown in fig. 2.

Fig. 8 is a schematic structural view of the middle frame assembly shown in fig. 2 provided with a first pressing member.

FIG. 9 is a schematic cross-sectional view of an embodiment of the center frame assembly shown in FIG. 2.

FIG. 10 is a schematic cross-sectional view of another embodiment of the center frame assembly shown in FIG. 2.

FIG. 11 is a schematic cross-sectional view of yet another embodiment of the center frame assembly shown in FIG. 2.

Fig. 12 is a schematic structural view of a first press-fitting member in the middle frame assembly shown in fig. 2.

Fig. 13 is a schematic structural view of the middle frame assembly shown in fig. 2 provided with a second press-fitting member.

Fig. 14 is a schematic view of the structure of the middle frame assembly of fig. 2 provided with a connecting member.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

The electronic equipment provided by the embodiment of the application can be equipment which is provided with a mainboard and a battery, such as a mobile phone, a tablet computer and a notebook computer, and needs to be electrically connected with the mainboard. The following embodiments are described with reference to a mobile phone as an example.

As shown in fig. 1, fig. 1 is a schematic structural diagram of an electronic device 100 according to an embodiment of the present disclosure. The electronic device 100 includes a middle frame assembly 1, a main board 2 disposed on the middle frame assembly 1, and a battery 3 disposed on the middle frame assembly 1.

Specifically, as shown in fig. 2, fig. 2 is a schematic structural diagram of the middle frame assembly 1 provided in the embodiment of the present application. The middle frame assembly 1 includes a middle frame 10, a fixing member 20, and a flexible circuit board 30. Wherein, the middle frame 10 is provided with a battery compartment 101, and the fixing member 20 and the flexible circuit board 30 are both located in the battery compartment 101.

As shown in fig. 3, the battery 3 is housed in a battery compartment 101. One end of the battery 3 is provided with a first electrical connection terminal 31, and the first electrical connection terminal 31 is used for electrically connecting with the motherboard 2. The battery 3 supplies power to the main board 2, so that the electronic apparatus 100 can realize transmission of an electric signal. The battery 3 and the battery compartment 101 may be embedded, clearance-fit, interference-fit, etc.

The main board 2 is fixed on the middle frame 10. The main board 2 is provided with a second electrical connection end 21, and the second electrical connection end 21 is electrically connected with a first electrical connection end 31 of the battery 3 through a flexible circuit board 30. In one embodiment, the main board 2 and the battery 3 are located on the same side of the middle frame 10, the main board 2 is located outside the battery compartment 101, and the first electrical connection end 31 is close to the second electrical connection end 21, so that the flexible circuit board 30 is convenient to connect the first electrical connection end 31 and the second electrical connection end 21. Of course, in other embodiments, the main board 2 and the battery 3 may be respectively disposed on opposite sides of the middle frame 10, and when the flexible circuit board 30 is connected to the first electrical connection terminal 31 and the second electrical connection terminal 21, one end of the flexible circuit board 30 is connected to the first electrical connection terminal 31, and the other end of the flexible circuit board 30 may be connected to the second electrical connection terminal 21 by winding around the edge of the middle frame 10 to the back side of the middle frame 10; or a through hole is arranged on the middle frame 10, and the flexible circuit board 30 is connected with the second electric connecting end 21 after passing through the through hole. The connection between the flexible circuit board 30 and the first electrical connection end 31 and the connection between the flexible circuit board 30 and the second electrical connection end 21 may be plug-in connection, abutting connection, buckling connection, etc.

The fixing member 20 is fixed in the battery compartment 101 and is close to or attached to the compartment wall of the battery compartment 101, so as to save the space occupied by the fixing member 20. In one embodiment, when the main board 2 and the battery 3 are both mounted on the middle frame 10, the main board 2, the fixing member 20 and the battery 3 are arranged in sequence. In other words, the fixing member 20 is located between the main board 2 and the battery 3. At this time, the flexible circuit board 30 is fixed to the fixing member 20, and opposite sides of the flexible circuit board 30 are close to the battery 3 and the main board 2, respectively. In one embodiment, the fixing member 20 is made of plastic material, so that the fixing member 20 and the flexible circuit board 30 are disposed in an insulating manner.

As shown in fig. 3, the flexible circuit board 30 has a third electrical connection end 301 near the first electrical connection end 31, the third electrical connection end 301 is matched with the first electrical connection end 31, the flexible circuit board 30 has a fourth electrical connection end 302 near the second electrical connection end 21, and the fourth electrical connection end 302 is matched with the second electrical connection end 21. In one embodiment, when the third electrical connection end 301 is matched with the first electrical connection end 31, the first electrical connection end 31 is inserted into the third electrical connection end 301, the third electrical connection end 301 is attached to the surface of the fixing member 20, and the first electrical connection end 31 is located on a side of the third electrical connection end 301 departing from the fixing member 20. In other words, the first electrical connection terminal 31 is located on the third electrical connection terminal 301 in the thickness direction of the electronic device 100. In this embodiment, the flexible circuit board 30 can better adhere to the surface of the fixing member 20, thereby improving the service life of the flexible circuit board 30. In one embodiment, the flexible circuit board 30 is partially adhered to the surface of the fixing member 20 by an adhesive, thereby preventing the flexible circuit board 30 from sliding, stretching, and the like. One side of the flexible circuit board 30 close to the second electrical connection end 21 extends to the second electrical connection end 21, so that the fourth electrical connection end 302 is inserted into the second electrical connection end 21.

Through set up flexible circuit board 30 on center 10, the one end of flexible circuit board 30 is connected with battery 3, and the other end of flexible circuit board 30 is connected with mainboard 2 to the problem of the unable direct lock of battery 3 and mainboard 2 of volume production is solved. Further, by arranging the fixing member 20 in the battery compartment 101 of the middle frame 10, at least a part of the flexible circuit board 30 is attached to the fixing member 20, so that the fixing member 20 has a certain supporting force for the flexible circuit board 30, the strength and stability of the flexible circuit board 30 are further improved, and the fixing problem of the flexible circuit board 30 is solved.

As shown in fig. 4, the middle frame 10 includes a carrier plate 102 and a frame 103 surrounding the carrier plate 102. The carrier plate 102 is partially recessed to form the battery compartment 101. The middle frame 10 is provided with at least one first positioning post 104. The first positioning column 104 is disposed on the carrier plate 102 and the first positioning column 104 is located in the battery compartment 101. Of course, in other embodiments, the first positioning column 104 may also be disposed on the frame 103, one end of the first positioning column 104 is fixedly connected to the frame 103, and the other end of the first positioning column 104 extends to the battery compartment 101. The bearing plate 102, the frame 103 and the first positioning column 104 may be integrally formed, or may be integrally connected by welding, bonding, fastening, bolting, etc. The number of the first positioning columns 104 is not limited in the embodiment of the present application, wherein the number of the first positioning columns 104 may be one or more.

As shown in fig. 5, the fixing member 20 has a substantially rectangular block structure. The fixing member 20 includes a first end surface 201 and a second end surface 202 which are oppositely arranged. The fixing member 20 is provided with at least one first positioning hole 203. In one embodiment, the first positioning hole 203 is a blind hole formed in the first end surface 201. In other words, the first positioning hole 203 does not penetrate the fixing member 20. Of course, the first positioning hole 203 may be a through hole in other embodiments. The number of the first positioning holes 203 is not limited in the embodiment of the present application, wherein the number of the first positioning holes 203 may be one or more.

Optionally, referring to fig. 4 and 5, the number of the first positioning posts 104 is the same as the number of the first positioning holes 203, so that one first positioning post 104 extends into a corresponding first positioning hole 203, and when the first positioning post 104 is matched with the first positioning hole 203, the fixing member 20 and the middle frame 10 are positioned and connected. The installation of the fixing member 20 is facilitated by the provision of the first positioning post 104 and the first positioning hole 203. In an embodiment, three first positioning holes 203 are formed in the fixing member 20, and the three first positioning holes 203 are arranged along the extending direction of the first end surface 201. The two first positioning holes 203 are symmetrically arranged and respectively close to the edges of two opposite sides of the first end surface 201, and the other first positioning hole 203 is located in the middle of the first end surface 201. The first positioning posts 104 on the middle frame 10 correspond to the corresponding first positioning holes 203, respectively. Further, the first end surface 201 of the fixing member 20 may be provided with an adhesive tape, and the fixing member 20 is adhered to the inside of the battery compartment 101 through the adhesive tape, so as to prevent the fixing member 20 from moving in a wrong way during use.

Further, as shown in fig. 6, the fixing member 20 is provided with at least one second positioning column 204. Second positioning post 204 is located on second end face 202 of fixing member 20. In one embodiment, second positioning column 204 is a semi-cylinder, and second positioning column 204 is disposed near the edge of second end face 202. The rectangular end surface of second positioning column 204 is flush with the edge of second end surface 202. In the embodiment of the present application, the number of the second positioning pillars 204 is not limited, wherein the number of the second positioning pillars 204 may be one or more.

As shown in fig. 7, the flexible circuit board 30 includes a first end 304 and a second end 305. The first end 304 intersects the second end 305 to form a generally L-shaped sheet. The third electrical connection end 301 is disposed near an end of the first end 304 of the flexible circuit board 30. The fourth electrical connection terminal 302 is disposed near an end of the second end 305 of the flexible circuit board 30. The third electrical connection end 301 and the fourth electrical connection end 302 are respectively located on two opposite end surfaces of the flexible circuit board 30. The flexible circuit board 30 is provided with at least one second positioning hole 303. In one embodiment, the second positioning holes 303 are semicircular and are disposed at the edge of the flexible circuit board 30. By disposing the second positioning hole 303 close to the edge of the flexible circuit board 30, the influence of the second positioning hole 303 on the wiring on the flexible circuit board 30 can be avoided. The number of the second positioning holes 303 is not limited in the embodiment of the present application, wherein the number of the second positioning holes 303 may be one or more.

Optionally, referring to fig. 6 and 7, the second positioning hole 303 is disposed opposite to the second positioning pillar 204. The number of the second positioning holes 303 is the same as that of the second positioning pillars 204. When the flexible circuit board 30 is mounted, the second positioning hole 303 on the flexible circuit board 30 is aligned with the second positioning column 204 on the fixing member 20, so that the positioning and connection between the flexible circuit board 30 and the fixing member 20 are facilitated. In other words, the second positioning columns 204 and the second positioning holes 303 are disposed to facilitate fixing the flexible circuit board 30 on the fixing member 20. In one embodiment, three second positioning pillars 204 are disposed on the fixing member 20. Three positioning posts are respectively disposed on opposite sides of the fixing member 20. Three second positioning holes 303 are formed in the flexible circuit board 30, and the three second positioning holes 303 correspond to the corresponding second positioning pillars 204. The three second positioning holes 303 are through holes. The second positioning post 204 penetrates through the second positioning hole 303.

When the first electrical connection end 31 of the battery 3 is engaged with the third electrical connection end 301 of the flexible circuit board 30, the tightness of the connection between the first electrical connection end 31 and the third electrical connection end 301 affects the power supply of the battery 3, even causing a short circuit and the like. In addition, the first electrical connection terminal 31 and the third electrical connection terminal 301 may be loosened and separated during a long time use.

As shown in fig. 8, the middle frame assembly 1 further includes a first press-fitting member 40. The first pressing member 40 is fixed in the battery compartment 101, and the first pressing member 40 is pressed on the first electrical connection end 31 and the third electrical connection end 301, so as to ensure the connection reliability between the first electrical connection end 31 and the third electrical connection end 301. The first pressing member 40 may be made of plastic, metal, or the like. The first engaging member 40 is provided with at least one third positioning hole 405. The number of the third positioning holes 405 is not limited in the embodiment of the present application. The number of the third positioning holes 405 may be one or more. In one embodiment, there are three third positioning holes 405. The third positioning hole 405 is semicircular and is disposed at the edge of the first pressing member 40. The third positioning hole 405 corresponds to the second positioning hole 303 of the flexible circuit board 30, and the second positioning column 204 of the fixing member 20 passes through the second positioning hole 303 of the flexible circuit board 30 to match with the third positioning hole 405. The second positioning column 204 and the third positioning hole 405 on the fixing member 20 are beneficial to positioning when the first pressing member 40 is installed, and connection between the fixing member 20 and the first pressing member 40. In this embodiment, the second positioning column 204 on the fixing member 20 not only facilitates the installation and positioning of the flexible circuit board 30, but also facilitates the installation and positioning of the first pressing member 40.

Specifically, as shown in fig. 9, the first pressing member 40 includes a first connecting portion 401, a second connecting portion 403, and a protruding portion 402 disposed between the first connecting portion 401 and the second connecting portion 403. The first connection portion 401, the projection 402, and the second connection portion 403 are connected in this order to form a single body. The first connection portion 401 is connected to the fixing member 20. Optionally, the first connecting portion 401 is attached to the fixing member 20, and a back adhesive is provided on the first connecting portion 401 and fixed to the fixing member 20 through the back adhesive. The second connecting portion 403 is attached to the flexible circuit board 30, and a back adhesive is disposed on the second connecting portion 403 and fixed to the flexible circuit board 30 through the back adhesive. The convex portion 402 is disposed opposite to the fixing member 20.

In an embodiment, as shown in fig. 10, the protruding portion 402 abuts against the first electrical connection end 31, and the protruding portion 402 applies pressure to the first electrical connection end 31 and the flexible circuit board 30, so that the first electrical connection end 31 is pressed on the third electrical connection end 301, thereby improving the connection reliability between the first electrical connection end 31 and the third electrical connection end 301.

In another embodiment, as shown in fig. 11, a receiving space 404 is formed between the protrusion 402 and the fixing member 20, and the first electrical connection terminal 31 and the third electrical connection terminal 301 are engaged in the receiving space 404. The convex portion 402 has a gap with the first electrical connection terminal 31. The middle frame assembly 1 further includes a buffer member 70. The buffer member 70 is located in the receiving space 404, and one side of the buffer member 70 is connected to the protruding portion 402 and the other side is used for abutting against the first electrical connection end 31. The buffer member 70 may be a foam, a silicone pad, a plastic pad, or the like. The buffering member 70 can prevent the convex portion 402 of the first compressing member 40 from directly contacting the first electrical connection end 31 to damage the first electrical connection end 31.

Further, as shown in fig. 12, the first engaging member 40 is provided with a first engaging hole 406. In one embodiment, the first pressing member 40 has first connecting holes 406 on two opposite sides, and the first connecting holes 406 are used for connecting the first pressing member 40 and the middle frame 10.

Further, as shown in fig. 13, the middle frame assembly 1 further includes a second press-fitting member 50. The second pressing member 50 is pressed on the second end 305 of the flexible circuit board 30. Specifically, the second pressing member 50 is used for pressing the fourth electrical connection terminal 302 on the flexible circuit board 30 and the second electrical connection terminal 21 on the motherboard 2. The second pressing member 50 acts on the pressing force of the fourth electrical connection end 302 and the second electrical connection end 21, so that the connection tightness and reliability of the fourth electrical connection end 302 and the second electrical connection end 21 can be improved, and the fourth electrical connection end 302 and the second electrical connection end 21 are prevented from loosening and falling off. The second engaging member 50 is provided with a second engaging hole 501. In one embodiment, the second connecting hole 501 is near the side of the second pressing member 50, and the second connecting hole 501 is used for connecting the second pressing member 50 with the middle frame 10.

Referring to fig. 12 to 14, the middle frame assembly 1 further includes a connecting member 60, and the connecting member 60 is used for connecting the first pressing member 40 and the second pressing member 50 to the middle frame 10. Specifically, the connecting member 60 may be a bolt, and one end of the connecting member 60 passes through the first connecting hole 406 and the second connecting hole 501 to be coupled to the middle frame 10. The present application does not limit the order in which the connector 60 passes through the first connection hole 406 and the second connection hole 501. In one embodiment, the first pressing member 40 has a smaller size, the second pressing member 50 has a larger size, one end of the connecting member 60 abuts against the first pressing member 40, and the other end of the connecting member 60 sequentially passes through the first connecting hole 406 and the second connecting hole 501 to match with the threaded hole of the middle frame 10. In this embodiment, the first pressing member 40 and the second pressing member 50 can be sequentially connected by the connecting member 60, so that the number of the connecting members 60 used can be reduced.

The foregoing is a partial description of the present application, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations are also regarded as the protection scope of the present application.

Claims

1. A center frame assembly, comprising:

a middle frame having a battery compartment;

the fixing piece is arranged in the battery bin; and

the flexible circuit board is at least partially attached and fixed to the fixing piece, a first end of the flexible circuit board is used for being connected with the battery, and a second end of the flexible circuit board is used for being connected with the mainboard.

2. The middle frame assembly according to claim 1, wherein the middle frame is provided with at least one first positioning post, the first positioning post is located in the battery compartment, the fixing member is provided with at least one first positioning hole, and the first positioning post is matched with the first positioning hole.

3. The middle frame assembly according to claim 1, wherein the fixing member is provided with at least one second positioning hole, the flexible circuit board is provided with at least one second positioning hole, and the second positioning hole is matched with the second positioning hole.

4. The middle frame assembly according to claim 3, wherein the first end of the flexible circuit board is adapted to be fastened to the electrical connection terminal of the battery, the middle frame assembly further comprising a first pressing member, the first pressing member is disposed on the fixing member, and the first pressing member is adapted to press the first end of the flexible circuit board and the electrical connection terminal of the battery.

5. The middle frame assembly as claimed in claim 4, wherein the second positioning hole is located at an edge of the flexible circuit board, the first pressing member has at least one third positioning hole, and the second positioning post passes through the second positioning hole and is engaged with the third positioning hole.

6. The middle frame assembly according to claim 4, wherein the first press-fit member includes a first connecting portion, a second connecting portion and a protruding portion disposed between the first connecting portion and the second connecting portion, the first connecting portion is connected to the fixing member, the second connecting portion is connected to the flexible circuit board, an accommodating space is formed between the protruding portion and the fixing member, and the first end of the flexible circuit board is located in the accommodating space.

7. The middle frame assembly according to claim 6, further comprising a buffer member located in the receiving space, wherein one side of the buffer member is connected to the protrusion, and the other side of the buffer member is used for abutting against the electrical connection end of the battery.

8. The middle frame assembly according to claim 4, further comprising a second pressing member, wherein the second pressing member is configured to be pressed onto the second end of the flexible circuit board and the main board.

9. The middle frame assembly according to claim 8, further comprising a connecting member, wherein the first press member has a first connecting hole, the second press member has a second connecting hole, and the connecting member passes through the first connecting hole and the second connecting hole and is connected to the middle frame.

10. An electronic device, comprising the middle frame assembly according to any one of claims 1 to 9, a main board, and a battery, wherein the flexible circuit board of the middle frame assembly electrically connects the main board and the battery.