Middle frame for mobile terminal and mobile terminal
View Patent ↗Embodiments include a middle frame for a mobile terminal and a mobile terminal. The middle frame for a mobile terminal includes a metal outer frame. An inner side of the metal outer frame is internally connected to a tray using a location structure. A plastic outer frame is formed on the inner side of the metal outer frame using an insert injection molding process, and the plastic outer frame is separately joined with the metal outer frame and the tray for curing.
1. A middle frame for a mobile terminal, the middle frame comprising:
a tray;
a location structure comprising a clamping structure;
a plastic outer frame; and
a metal outer frame, wherein an inner side of the metal outer frame is internally connected to the tray using the location structure, wherein the plastic outer frame is formed on the inner side of the metal outer frame using an insert injection molding process, and wherein the plastic outer frame is separately joined with the metal outer frame and the tray for curing.
2. The middle frame of claim 1 , wherein a protrusion is disposed on the inner side of the metal outer frame, wherein the protrusion extends to a middle portion of the metal outer frame, wherein an edge of the tray and the protrusion are disposed in a superposition manner, and wherein the edge of the tray is connected to the protrusion using the location structure.
3. The middle frame of claim 2 , wherein the plastic outer frame clamps the tray and the protrusion along a direction of superposition between the tray and the protrusion.
4. The middle frame of claim 2 , wherein the protrusion is perpendicular to an inner surface of the metal outer frame.
5. The middle frame of claim 1 , wherein the clamping structure comprises at least one first clamping structure disposed on the tray and at least one second clamping structure correspondingly disposed on the metal outer frame, and wherein the at least one first clamping structure is clamped to the at least one second clamping structure in a cooperative manner.
6. The middle frame of claim 2 , wherein the clamping structure comprises at least one first clamping structure disposed on the edge of the tray and at least one second clamping structure correspondingly disposed on the protrusion, and wherein the at least one first clamping structure is clamped to the at least one second clamping structure in a cooperative manner.
7. The middle frame of claim 5 , wherein:
the first clamping structure is a rivet platform, and the second clamping structure is a rivet hole; or
the first clamping structure is the rivet hole, and the second clamping structure is the rivet platform.
8. The middle frame of claim 7 , wherein:
when the rivet platform is disposed on the metal outer frame, a first contact area between the rivet platform and the metal outer frame is greater than or equal to one square millimeter; and
when the rivet platform is disposed on the tray, a second contact area between the rivet platform and the tray is greater than or equal to one square millimeter.
9. The middle frame of claim 1 , wherein the metal outer frame comprises a signal receiving portion and an appearance portion, and wherein the plastic outer frame insulatively connects the signal receiving portion and the appearance portion during joining and curing.
10. A mobile terminal, comprising:
a middle frame, comprising:
a tray;
a location structure comprising a clamping structure;
a plastic outer frame; and
a metal outer frame, wherein an inner side of the metal outer frame is internally connected to tray using location structure, plastic outer frame is formed on the inner side of the metal outer frame using an insert injection molding process, and the plastic outer frame is separately joined with the metal outer frame and the tray for curing;
a circuit board mounted on the tray;
a display apparatus; and
a back cover;
wherein one side of the middle frame is connected to the display)apparatus, and the other side of the middle frame is connected to the back cover.
11. The mobile terminal of claim 10 , wherein a protrusion is disposed on the inner side of the metal outer frame, wherein the protrusion extends to a middle portion of the metal outer frame, wherein an edge of the tray and the protrusion are disposed in a superposition manner, and wherein the edge of the tray is connected to the protrusion using the location structure.
12. The mobile terminal of claim 11 , wherein the plastic outer frame clamps the tray and the protrusion along a direction of superposition between the tray and the protrusion.
13. The mobile terminal of claim 11 , wherein the protrusion is perpendicular to an inner surface of the metal outer frame.
14. The mobile terminal of claim 10 , wherein the clamping structure comprises at least one first clamping structure disposed on the tray and at least one second clamping structure correspondingly disposed on the metal outer frame, and wherein the at least one first clamping structure is clamped to the at least one second clamping structure in a cooperative manner.
15. The mobile terminal of claim 11 , wherein the clamping structure comprises at least one first clamping structure disposed on the edge of the tray and at least one second clamping structure correspondingly disposed on the protrusion, and wherein the at least one first clamping structure is clamped to the at least one second clamping structure in a cooperative manner.
16. The mobile terminal of claim 14 , wherein:
the first clamping structure is a rivet platform, and the second clamping structure is a rivet hole; or
the first clamping structure is the rivet hole, and the second clamping structure is the rivet platform.
17. The mobile terminal of claim 16 , wherein:
when the rivet platform is disposed on the metal outer frame, a first contact area between the rivet platform and the metal outer frame is greater than or equal to one square millimeter; and
when the rivet platform is disposed on the tray, a second contact area between the rivet platform and the tray is greater than or equal to one square millimeter.
18. The mobile terminal of claim 14 , wherein a plurality of first clamping structures are disposed on an edge of one side surface of the tray, and a plurality of second clamping structures corresponding to the plurality of first clamping structures are disposed on the metal outer frame.
19. The mobile terminal of claim 18 , wherein the plurality of first clamping structures are disposed at intervals, and wherein a spacing between two adjacent clamping structures of the first clamping structures is between ten millimeters to fifty millimeters.
20. The mobile terminal of claim 10 , wherein the metal outer frame comprises a signal receiving portion and an appearance portion, and the plastic outer frame insulatively connects the signal receiving portion and the appearance portion during joining and curing.