# US 11,116,099 B2 · Riveted metal middle frame and electronic device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,116,099 B2 - Document ID: US11116099B2 - Status: Granted - Kind: B2 - Application number: 16/088,396 - Filed: 2018-03-09 - Published: 2021-04-08 - Granted: 2021-09-07 - Earliest claimed: 2018-01-17 - Assignees: Guangdong Everwin Precision Technology Co., Ltd. - Applicants: Guangdong Everwin Precision Technology Co., Ltd. - Inventors: Xiangsheng Ren; Lidong Wang; Lilei Wang; Ke Zhang; Hao Huang - Web page: https://patentgrep.com/patent/US11116099B2 ## CPC - H04M 1/0202: {Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets (constructional features of telephone transmitters or receivers, e.g. of speakers or microphones H04M1/03)} - H05K 5/04: Metal casings - H04M 1/0249: {Details of the mechanical connection between the housing parts or relating to the method of assembly} - H04M 1/185: {Improving the shock resistance of the housing, e.g. by increasing the rigidity} - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract Provided is a riveted metal middle frame including a middle plate and a border frame riveted to the middle plate. The middle plate is made of aluminum alloy, and the periphery of the middle plate is convexly provided with convex edge. The border frame includes members connected end to end in sequence. The members are made of metal material with hardness not less than aluminum alloy, and are riveted to the periphery of the middle plate; and the inner sides of the members are respectively provided with slots for connecting the convex edge. The convex edge is riveted to the slot by press-fitting the border frame. Meanwhile, an electronic device including the above-described riveted metal middle frame is also provided. The beneficial effects are that the middle plate and the border frame are riveted together by press-fitting deformation, thereby improving production efficiency and reducing manufacturing cost. ## Claims ### Claim 1 A riveted metal middle frame, comprising: a middle plate, wherein the middle plate is made of aluminum alloy, and a periphery of the middle plate is convexly provided with a convex edge; and a border frame riveted to the middle plate, wherein the border frame comprises a plurality of members connected end to end in sequence, the plurality of the members are connected end to end to form an enclosure frame structure that is sleeved on a periphery of the middle plate, each of the plurality of members is made of a metal material with a hardness not less than that of aluminum alloy, the plurality of members are riveted to the periphery of the middle plate, an inner side of each of the plurality of members is respectively provided with a slot for connecting the convex edge, and the convex edge is riveted to the slot by press-fitting the border frame. ### Claim 2 (depends on 1) The riveted metal middle frame of claim 1, wherein the plurality of members are connected together by welding. ### Claim 3 (depends on 2) The riveted metal middle frame of claim 2, wherein a gap is provided on a joint between two adjacent members of the plurality of members, and the gap is filled with a solder. ### Claim 4 (depends on 1) The riveted metal middle frame of claim 1, wherein the plurality of members are two members, which are first member and a second member, and the first member and the second member are each provided with a U-shaped structure. ### Claim 5 (depends on 4) The riveted metal middle frame of claim 4, wherein the length of the first member after being unfolded into a linear shape is less than the length of the second member after being unfolded into a linear shape. ### Claim 6 (depends on 5) The riveted metal middle frame of claim 5, wherein the first member is provided with a three-segment structure and comprises a first straight segment, a first arc segment connected to one end of the first straight segment, and a second arc segment connected to another end of the first straight segment, the second member is provided with a five-segment structure and comprises a second straight segment, a third arc segment connected to one end of the second straight segment, a fourth arc segment connected to another end of the second straight segment, a third straight segment connected to an end of the third arc segment away from the second straight segment, and a fourth straight segment connected to an end of the fourth arc segment away from the second straight segment, one end of the third straight segment away from the third arc segment is connected to the first arc segment, and one end of the fourth straight segment away from the fourth arc segment is connected to the second arc segment. ### Claim 7 (depends on 1) The riveted metal middle frame of claim 1, wherein the plurality of members are four members, which are a third member, a fourth member, a fifth member, and a sixth member that are connected end to end in sequence. ### Claim 8 (depends on 7) The riveted metal middle frame of claim 7, wherein the third member and the fifth member are both provided with U-shaped structure, and the fourth member and the sixth member are both provided with a straight sheet structure. ### Claim 9 (depends on 8) The riveted metal middle frame of claim 8, wherein the length of the third member after being unfolded into a linear shape is equal to the length of the fifth member after being unfolded into a linear shape, the fourth member and the sixth member are of equal length, the length of the fourth member is greater than the length of the third member after being unfolded into a linear shape. ### Claim 10 (depends on 1) An electronic device, comprising a riveted metal middle frame according to claim 1. ### Claim 11 A riveted metal middle frame, comprising: a middle plate, wherein the middle plate is made of aluminum alloy, and a periphery of the middle plate is convexly provided with a convex edge; and a border frame riveted to the middle plate, wherein the border frame comprises a plurality of members sleeved on a periphery of the middle plate, the plurality of members are separated from each other to form at least two gaps, each of the plurality of members is made of a metal material with a hardness not less than that of aluminum alloy, the plurality of members are riveted to the periphery of the middle plate, an inner side of each of the plurality of members is respectively provided with a slot for connecting the convex edge, and the convex edge is riveted to the slot by press-fitting the border frame. ### Claim 12 (depends on 11) The riveted metal middle frame of claim 11, wherein the plurality of members are two members, which are a first member and a second member, and the first member and the second member are each provided with a U-shaped structure. ### Claim 13 (depends on 12) The riveted metal middle frame of claim 12, wherein the length of the first member after being unfolded into a linear shape is less than the length of the second member after being unfolded into a linear shape. ### Claim 14 (depends on 13) The riveted metal middle frame of claim 13, wherein the first member is provided with a three-segment structure and comprises a first straight segment, a first arc segment connected to one end of the first straight segment, and a second arc segment connected to another end of the first straight segment, the second member is provided with a five-segment structure and comprises a second straight segment, a third arc segment connected to one end of the second straight segment, a fourth arc segment connected to another end of the second straight segment, a third straight segment connected to an end of the third arc segment away from the second straight segment, and a fourth straight segment connected to an end of the fourth arc segment away from the second straight segment, one end of the third straight segment away from the third arc segment is faced to the first arc segment, and one end of the fourth straight segment away from the fourth arc segment is faced to the second arc segment. ### Claim 15 (depends on 10) The riveted metal middle frame of claim 10, wherein the plurality of members are four members, which are a third member, a fourth member, a fifth member, and a sixth member that are connected end to end in sequence. ### Claim 16 (depends on 15) The riveted metal middle frame of claim 15, wherein the third member and the fifth member are both provided with U-shaped structure, and the fourth member and the sixth member are both provided with a straight sheet structure. ### Claim 17 (depends on 16) The riveted metal middle frame of claim 16, wherein the length of the third member after being unfolded into a linear shape is equal to the length of the fifth member after being unfolded into a linear shape, the fourth member and the sixth member are of equal length, the length of the fourth member is greater than the length of the third member after being unfolded into a linear shape. ### Claim 18 (depends on 11) The riveted metal middle frame of claim 11, wherein in manufacturing process, the plurality of members are connected together by welding or locking, and formed at least two connecting portions therein. ### Claim 19 (depends on 18) The riveted metal middle frame of claim 18, wherein the at least two connecting portions are cut by milling tool to form the gaps for separating the plurality of members from each other.