CN207427235U - Center, bottom cover and mobile terminal - Google Patents
Center, bottom cover and mobile terminal Download PDFInfo
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- CN207427235U CN207427235U CN201721625410.0U CN201721625410U CN207427235U CN 207427235 U CN207427235 U CN 207427235U CN 201721625410 U CN201721625410 U CN 201721625410U CN 207427235 U CN207427235 U CN 207427235U
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- protrusion
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- slot position
- mounting hole
- bottom cover
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Abstract
The utility model provides a kind of center, bottom cover and mobile terminal.Center body is equipped with mounting hole, insert is located in mounting hole, and insert is equipped with earpiece holes, wherein, one in center body and insert is equipped with the first protrusion, another first slot position for being equipped with to accommodate the first protrusion in center body and insert, and the first slot position is adapted with the first protrusion；Bottom cover body is equipped with mounting hole, insert is located in mounting hole, and insert is equipped with earpiece holes, wherein, one in bottom cover body and insert is equipped with the first protrusion, another first slot position for being equipped with to accommodate the first protrusion in bottom cover body and insert, and the first slot position is adapted with the first protrusion.Center or bottom cover provided by the utility model by the cooperation of the first protrusion and the first slot position, can enhance the bond strength between center body or bottom cover body and insert, the stripping of center body or bottom cover body and insert when avoiding the mobile terminal from falling.
Description
Technical field
The utility model is related to field of mobile terminals, more specifically, be related to a kind of center, bottom cover and including the center or
The mobile terminal of bottom cover.
Background technology
Existing mobile terminal such as mobile phone, design thickness cause the center of mobile phone or the thickness of bottom cover all than relatively thin
Also it is very thin.Mobile phone center includes the insert of center body and embedded center body, and center body and insert are combined together,
Alternatively, mobile phone bottom cover includes the insert of bottom cover body and embedded bottom cover body, bottom cover body and insert are combined together, embedding
Enter to process earpiece holes through hole (a diameter of 3.6mm of earpiece holes through hole) on part, process the wall thickness of upper and lower sides after earpiece holes through hole
Very thin, structural strength is very weak, the phenomenon that easily stripping when mobile phone falls there are center body or bottom cover body with insert,
But due to the limitation of design space, be very difficult to realize at present increase center body or the bond strength of bottom cover body and insert with
With reference to power.
Utility model content
The utility model is intended at least solve one of technical problem in the prior art.
For this purpose, the first aspect of the utility model is designed to provide a kind of center.
The second aspect of the utility model is designed to provide a kind of bottom cover.
3rd aspect of the utility model is designed to provide a kind of mobile terminal including above-mentioned center or bottom cover.
To achieve the above object, the embodiment of the first aspect of the utility model provides a kind of center, including：Center
Body, the center body are equipped with mounting hole；And insert, in the mounting hole, and the insert is equipped with ear
Machine hole；Wherein, one in the center body and the insert is equipped with the first protrusion, the center body and described embedding
Enter another first slot position for being equipped with to accommodate first protrusion in part, and the first slot position and described first convex
It rises and is adapted.
The center that the utility model above-described embodiment provides, center body are equipped with what is be adapted with the outer surface of insert
Mounting hole, insert are located in the mounting hole of center body, and insert is equipped with to be inserted into the earpiece holes of earphone.Center body
It is equipped with to the first protrusion close to (inside) protrusion in the direction of insert, insert is equipped with the be adapted with the first protrusion
One slot position, first protrusion insertion the first slot position in, by first protrusion and the first slot position cooperation, can enhance center body and
Bond strength between insert avoids stripping of mobile terminal when falling between caused center body and insert.Also may be used
To be that insert is equipped with to the first protrusion protruded close to the direction of center body, center body is equipped with and the first raised phase
First slot position of adaptation, the first protrusion are inserted into the first slot position.
The internal face of mounting hole is equipped in (inside) the first protrusion protruded in the direction of insert, insert and sets
There is the first slot position being adapted with the first protrusion, the first protrusion is inserted into the first slot position, passes through the first protrusion and the first slot position
Cooperation, can enhance the bond strength between center body and insert, avoid mobile terminal caused center body when falling
Stripping between insert.Can also be that the outside wall surface of insert is equipped with to close to the direction (outside) of mounting hole and protrudes
First protrusion, the internal face of mounting hole are equipped with the first slot position being adapted with the first protrusion, first the first slot position of protrusion insertion
It is interior.
In addition, the center that the utility model above-described embodiment provides also has following additional technical feature：
In above-mentioned technical proposal, it is preferable that the inner wall of the mounting hole protrudes shape towards close to the direction of the insert
Into the described first protrusion, the first slot position is located on the insert；It is described first protrusion thickness range for 0.05mm~
0.15mm, the width range of first protrusion is 0.7mm~1.0mm.
In above-mentioned technical proposal, it is preferable that the inner wall of the mounting hole protrudes shape towards close to the direction of the insert
Into the described first protrusion, the first slot position is located on the insert；The non-bulging earpiece holes of first protrusion it is interior
Wall surface and/or, along described first protrusion middle part to close to described first protrusion both ends direction, it is described first protrusion
Thickness reduce and/or, it is described first protrusion be located at the mounting hole upper end or lower end.
In above-mentioned technical proposal, it is preferable that the insert protrudes shape to the direction of the internal face close to the mounting hole
Into the second protrusion, the internal face of the mounting hole is equipped with to accommodate the second slot position of second protrusion, and described second
It is raised to be adapted with the second slot position.
In above-mentioned technical proposal, it is preferable that the width range of the second slot position is 0.2mm~0.5mm.
In above-mentioned technical proposal, it is preferable that along the middle part of the second slot position to close to the both ends of the second slot position
Direction, the depth of the second slot position reduce；And/or the second slot position is located at the left or right of the mounting hole；With/
Or, the internal face of the non-bulging earpiece holes in the second slot position.
In above-mentioned technical proposal, it is preferable that the center body is metal center body, and the insert is embedded in for plastic cement
Part；And/or the center body and the insert are the integral structure using in-mould injection technological forming.
The embodiment of the utility model the second aspect provides a kind of bottom cover, including：Bottom cover body, on the bottom cover body
Equipped with mounting hole；And insert, in the mounting hole, and the insert is equipped with earpiece holes；Wherein, the bottom cover sheet
One in body and the insert is raised equipped with first, another in the bottom cover body and the insert is equipped with
For accommodating the first slot position of first protrusion, and the first slot position is adapted with first protrusion.
The bottom cover that the embodiment of the utility model the second aspect provides, bottom cover body are equipped with the outer surface with insert
The mounting hole being adapted, insert are located in the mounting hole of bottom cover body, and insert is equipped with to be inserted into the earpiece holes of earphone.
Bottom cover body is equipped with to the first protrusion close to (inside) protrusion in the direction of insert, and insert is equipped with and the first raised phase
First slot position of adaptation, the first protrusion are inserted into the first slot position, by the cooperation of the first protrusion and the first slot position, can enhance bottom
Bond strength between lid body and insert avoids stripping of mobile terminal when falling between caused bottom cover body and insert
From.Can also be that insert is equipped with to the first protrusion protruded close to the direction of bottom cover body, bottom cover body is equipped with and the
The first slot position that one protrusion is adapted, the first protrusion are inserted into the first slot position.
In above-mentioned technical proposal, it is preferable that the inner wall of the mounting hole protrudes shape towards close to the direction of the insert
Into the described first protrusion, the first slot position is located on the insert；It is described first protrusion thickness range for 0.05mm~
0.15mm, the width range of first protrusion is 0.7mm~1.0mm.
In above-mentioned technical proposal, it is preferable that the inner wall of the mounting hole protrudes shape towards close to the direction of the insert
Into the described first protrusion, the first slot position is located on the insert；The non-bulging earpiece holes of first protrusion it is interior
Wall surface and/or, along described first protrusion middle part to close to described first protrusion both ends direction, it is described first protrusion
Thickness reduce and/or, it is described first protrusion be located at the mounting hole upper end or lower end.
In above-mentioned technical proposal, it is preferable that the insert protrudes shape to the direction of the internal face close to the mounting hole
Into the second protrusion, the internal face of the mounting hole is equipped with to accommodate the second slot position of second protrusion, and described second
It is raised to be adapted with the second slot position.
In above-mentioned technical proposal, it is preferable that the width range of the second slot position is 0.2mm~0.5mm.
In above-mentioned technical proposal, it is preferable that along the middle part of the second slot position to close to the both ends of the second slot position
Direction, the depth of the second slot position reduce；And/or the second slot position is located at the left or right of the mounting hole；With/
Or, the internal face of the non-bulging earpiece holes in the second slot position.
In above-mentioned technical proposal, it is preferable that the bottom cover body is metal bottom cover body, and the insert is embedded in for plastic cement
Part；And/or the bottom cover body and the insert are the integral structure using in-mould injection technological forming.
The embodiment of the 3rd aspect of the utility model provides a kind of mobile terminal, including：Described in any of the above-described embodiment
Center；Alternatively, the bottom cover described in any of the above-described embodiment.
The additional aspect and advantage of the utility model will become apparent or new by this practicality in following description section
The practice of type is recognized.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the utility model will in the description from combination accompanying drawings below to embodiment
Become apparent and be readily appreciated that, wherein：
Fig. 1 is the structure diagram of the bottom cover body part described in one embodiment of the utility model；
Fig. 2 be in Fig. 1 A-A to schematic cross-sectional view；
Fig. 3 is the schematic cross-sectional view of B-B direction in Fig. 1.
Wherein, correspondences of the Fig. 1 into Fig. 3 between reference numeral and component names is：
1 bottom cover body, 11 first protrusions, 12 second slot positions, 13 mounting holes.
Specific embodiment
In order to be more clearly understood that the above-mentioned purpose of the utility model, feature and advantage, below in conjunction with the accompanying drawings and have
The utility model is further described in detail in body embodiment.It should be noted that in the case where there is no conflict, this Shen
The feature in embodiment and embodiment please can be mutually combined.
Many details are elaborated in the following description in order to fully understand the utility model, still, this practicality
It is new to be implemented using other different from mode described here, therefore, the scope of protection of the utility model and from
The limitation of following public specific embodiment.
Center, bottom cover and mobile terminal according to some embodiments of the utility model is described with reference to the accompanying drawings.
According to a kind of center of the utility model some embodiments offer, including center body and insert.Center body
It is equipped with mounting hole；Insert is located in mounting hole, and insert is equipped with earpiece holes；Wherein, in center body and insert
One be equipped with the first protrusion, another in center body and insert is equipped with to accommodate first first raised slot
Position, and the first slot position is adapted with the first protrusion.
The center that the utility model above-described embodiment provides, center body are equipped with what is be adapted with the outer surface of insert
Mounting hole, insert are located in the mounting hole of center body, and the middle part of insert is equipped with to be inserted into the earpiece holes of earphone, preferably
The axis of ground mounting hole and the axis of earpiece holes overlap.
The internal face of mounting hole is equipped with to outside (inside) the first protrusion protruded in the direction of insert, insert
Wall surface is equipped with the first slot position for being adapted with the first protrusion, in first the first slot position of protrusion insertion, passes through the first protrusion and the
The cooperation of one slot position, can enhance the bond strength between center body and insert, avoid mobile terminal caused when falling
Stripping between center body and insert.Can also be insert outside wall surface be equipped with to close to mounting hole direction (to
First protrusion of protrusion outside), the internal face of mounting hole are equipped with the first slot position being adapted with the first protrusion, the first protrusion insertion
In first slot position.
Embodiment one：
A kind of center, including center body and insert.Center body is equipped with mounting hole；Insert is located at mounting hole
It is interior, and insert is equipped with earpiece holes；Wherein, one in center body and insert is equipped with the first protrusion, center body
With in insert another be equipped with for accommodate first protrusion first slot position, and the first slot position with first protrusion mutually fit
Match somebody with somebody.
Preferably, center body is metal center body, and insert is plastic cement insert.
Preferably, center body and insert are the integral structure using in-mould injection technological forming, wherein center sheet
Body is mold insert, and center body is put into the mold cavity used in in-mould injection technological forming, is molded into the mold cavity
Resin used in type insert, resin solidification are molded to form center.Certainly, center body and insert can also be split type knots
Structure, center body and insert are separately formed, and are connected by screw or are buckled again etc. connections both after being separately formed.
Preferably, the inner wall of mounting hole to form the first protrusion towards being protruded close to the direction of insert, and the first slot position is located at
On insert.
In correlation technique, the total height (thickness) of center body is 4.99mm, a diameter of 3.6mm of earpiece holes, insert
One-sided thickness (the distance between internal face of the internal face of earpiece holes to mounting hole) is 0.23mm, in earpiece holes to center body
The thickness on border is 0.73mm, and the thickness of earpiece holes to center body lower boundary is 0.67mm, so strong above and below center body
Degree is all weaker.
After setting mounting hole on center body, the intensity of center body is lower, and when mobile terminal falls, center body is set
It puts and deformation is easily fallen at mounting hole.First protrusion is arranged on to the volume that center body is increased on center body, Neng Gouzeng
The structural strength of persistent erection frame body.
Preferably, the scope of the thickness C of the first protrusion is 0.05mm~0.15mm, and the thickness of the first protrusion can be but not
It is limited to 0.05mm, 0.10mm or 0.15mm.
Preferably, first protrusion width H (width refer in Fig. 1 perpendicular to paper aspect size, i.e., first is convex
Play the size along the axis direction of earpiece holes) scope for 0.7mm~1.0mm, the width of the first protrusion can be but be not limited to
0.7mm, 0.8mm, 0.9mm or 1.0mm.
Embodiment two：
A kind of center, including center body and insert.Center body is equipped with mounting hole；Insert is located at mounting hole
It is interior, and insert is equipped with earpiece holes；Wherein, one in center body and insert is equipped with the first protrusion, center body
With in insert another be equipped with for accommodate first protrusion first slot position, and the first slot position with first protrusion mutually fit
Match somebody with somebody.
Preferably, center body is metal center body, and insert is plastic cement insert.
Preferably, center body and insert are the integral structure using in-mould injection technological forming, wherein center sheet
Body is mold insert, and center body is put into the mold cavity used in in-mould injection technological forming, is molded into the mold cavity
Resin used in type insert, resin solidification are molded to form center.Certainly, center body and insert can also be split type knots
Structure, center body and insert are separately formed, and are connected by screw or are buckled again etc. connections both after being separately formed.
Preferably, the inner wall of mounting hole to form the first protrusion towards being protruded close to the direction of insert, and the first slot position is located at
On insert.
In correlation technique, the total height (thickness) of center body is 4.99mm, a diameter of 3.6mm of earpiece holes, insert
One-sided thickness (the distance between internal face of the internal face of earpiece holes to mounting hole) is 0.23mm, in earpiece holes to center body
The thickness on border is 0.73mm, and the thickness of earpiece holes to center body lower boundary is 0.67mm, so strong above and below center body
Degree is all weaker.
After setting mounting hole on center body, the intensity of center body is lower, and when mobile terminal falls, center body is set
It puts and deformation is easily fallen at mounting hole.First protrusion is arranged on to the volume that center body is increased on center body, Neng Gouzeng
The structural strength of persistent erection frame body.
Preferably, on the one hand the internal face of the first non-bulging earpiece holes of protrusion ensures the normal function of earpiece holes, the opposing party
Improve the aesthetics of earpiece holes in face.
Embodiment three：
A kind of center, including center body and insert.Center body is equipped with mounting hole；Insert is located at mounting hole
It is interior, and insert is equipped with earpiece holes；Wherein, one in center body and insert is equipped with the first protrusion, center body
With in insert another be equipped with for accommodate first protrusion first slot position, and the first slot position with first protrusion mutually fit
Match somebody with somebody.
Preferably, center body is metal center body, and insert is plastic cement insert.
Preferably, center body and insert are the integral structure using in-mould injection technological forming, wherein center sheet
Body is mold insert, and center body is put into the mold cavity used in in-mould injection technological forming, is molded into the mold cavity
Resin used in type insert, resin solidification are molded to form center.Certainly, center body and insert can also be split type knots
Structure, center body and insert are separately formed, and are connected by screw or are buckled again etc. connections both after being separately formed.
Preferably, the inner wall of mounting hole to form the first protrusion towards being protruded close to the direction of insert, and the first slot position is located at
On insert.
In correlation technique, the total height (thickness) of center body is 4.99mm, a diameter of 3.6mm of earpiece holes, insert
One-sided thickness (the distance between internal face of the internal face of earpiece holes to mounting hole) is 0.23mm, in earpiece holes to center body
The thickness on border is 0.73mm, and the thickness of earpiece holes to center body lower boundary is 0.67mm, so strong above and below center body
Degree is all weaker.
After setting mounting hole on center body, the intensity of center body is lower, and when mobile terminal falls, center body is set
It puts and deformation is easily fallen at mounting hole.First protrusion is arranged on to the volume that center body is increased on center body, Neng Gouzeng
The structural strength of persistent erection frame body.
Preferably, along first protrusion middle part to close to first protrusion both ends direction, first protrusion thickness it is gradual
Reduce, the maximum gauge of the first protrusion is the thickness of the first raised central portion.
Preferably, the top and bottom of mounting hole are equipped with the first protrusion, along from the middle part of the first protrusion to the first protrusion
Right end direction, the thickness in the first protrusion protrusion inner wall of the hole installing face is gradually reduced, along from the middle part of the first protrusion to first
The direction of the left end of protrusion, the thickness in the first protrusion protrusion inner wall of the hole installing face are gradually reduced, i.e. the thickness of the first raised central portion
Maximum is gradually reduced from middle part to left end with right end, the thickness of the first protrusion.Certainly, the thickness of the first protrusion everywhere can also
It is identical.First protrusion can also be only set in the upper end of mounting hole, alternatively, only setting the first protrusion in the lower end of mounting hole, also
More first protrusions can be set on mounting hole.
Example IV：
A kind of center, including center body and insert.Center body is equipped with mounting hole；Insert is located at mounting hole
It is interior, and insert is equipped with earpiece holes；Wherein, one in center body and insert is equipped with the first protrusion, center body
With in insert another be equipped with for accommodate first protrusion first slot position, and the first slot position with first protrusion mutually fit
Match somebody with somebody.
Preferably, center body is metal center body, and insert is plastic cement insert.
Preferably, center body and insert are the integral structure using in-mould injection technological forming, wherein center sheet
Body is mold insert, and center body is put into the mold cavity used in in-mould injection technological forming, is molded into the mold cavity
Resin used in type insert, resin solidification are molded to form center.Certainly, center body and insert can also be split type knots
Structure, center body and insert are separately formed, and are connected by screw or are buckled again etc. connections both after being separately formed.
Preferably, the inner wall of mounting hole to form the first protrusion towards being protruded close to the direction of insert, and the first slot position is located at
On insert.
In correlation technique, the total height (thickness) of center body is 4.99mm, a diameter of 3.6mm of earpiece holes, insert
One-sided thickness (the distance between internal face of the internal face of earpiece holes to mounting hole) is 0.23mm, in earpiece holes to center body
The thickness on border is 0.73mm, and the thickness of earpiece holes to center body lower boundary is 0.67mm, so strong above and below center body
Degree is all weaker.
After setting mounting hole on center body, the intensity of center body is lower, and when mobile terminal falls, center body is set
It puts and deformation is easily fallen at mounting hole.First protrusion is arranged on to the volume that center body is increased on center body, Neng Gouzeng
The structural strength of persistent erection frame body.
Preferably, the first protrusion is located at the upper end or lower end of mounting hole.
Embodiment five：
On the basis of embodiment one, embodiment two, embodiment three or example IV, further, insert is to close
The direction of the internal face of mounting hole protrudes to form the second protrusion, and the internal face of mounting hole is equipped with to accommodate the of the second protrusion
Two slot positions, and the second protrusion is adapted with the second slot position.
The outside wall surface of insert is outwardly to form the second protrusion, and the internal face of mounting hole is equipped with mutually suitable with the second protrusion
The the second slot position matched somebody with somebody, the second protrusion is located in the second slot position, so as to further enhance the contact area of insert and center body,
The bond strength of enhancing between the two.
Preferably, the second slot position width E (width refer in Fig. 1 perpendicular to paper aspect size, i.e. the second slot
Size of the position along the axis direction of earpiece holes) scope for 0.2mm~0.5mm, the width of the second slot position can be but be not limited to
0.2mm, 0.3mm, 0.4mm or 0.5mm.
Second slot position can also be arranged in the outside wall surface of insert, the outwardly formation of the internal face of mounting hole and the
The second protrusion that two slot positions are adapted.
Preferably, the second slot position is T-shaped or trapezoidal or the other shapes such as rectangle.
Embodiment six：
On the basis of embodiment one, embodiment two, embodiment three or example IV, further, insert is to close
The direction of the internal face of mounting hole protrudes to form the second protrusion, and the internal face of mounting hole is equipped with to accommodate the of the second protrusion
Two slot positions, and the second protrusion is adapted with the second slot position.
The outside wall surface of insert is outwardly to form the second protrusion, and the internal face of mounting hole is equipped with mutually suitable with the second protrusion
The the second slot position matched somebody with somebody, the second protrusion is located in the second slot position, so as to further enhance the contact area of insert and center body,
The bond strength of enhancing between the two.
The internal face of the second non-bulging earpiece holes in slot position so that the setting of the second slot position and the second protrusion does not influence center
Appearance.
Second slot position can also be arranged in the outside wall surface of insert, the outwardly formation of the internal face of mounting hole and the
The second protrusion that two slot positions are adapted.
Preferably, the second slot position is T-shaped or trapezoidal or the other shapes such as rectangle.
Embodiment seven：
On the basis of embodiment one, embodiment two, embodiment three or example IV, further, insert is to close
The direction of the internal face of mounting hole protrudes to form the second protrusion, and the internal face of mounting hole is equipped with to accommodate the of the second protrusion
Two slot positions, and the second protrusion is adapted with the second slot position.
The outside wall surface of insert is outwardly to form the second protrusion, and the internal face of mounting hole is equipped with mutually suitable with the second protrusion
The the second slot position matched somebody with somebody, the second protrusion is located in the second slot position, so as to further enhance the contact area of insert and center body,
The bond strength of enhancing between the two.
Preferably, the second slot position is located at the left or right of mounting hole.
Second slot position can also be arranged in the outside wall surface of insert, the outwardly formation of the internal face of mounting hole and the
The second protrusion that two slot positions are adapted.
Preferably, the second slot position is T-shaped or trapezoidal or the other shapes such as rectangle.
Embodiment eight：
On the basis of embodiment one, embodiment two, embodiment three or example IV, further, insert is to close
The direction of the internal face of mounting hole protrudes to form the second protrusion, and the internal face of mounting hole is equipped with to accommodate the of the second protrusion
Two slot positions, and the second protrusion is adapted with the second slot position.
The outside wall surface of insert is outwardly to form the second protrusion, and the internal face of mounting hole is equipped with mutually suitable with the second protrusion
The the second slot position matched somebody with somebody, the second protrusion is located in the second slot position, so as to further enhance the contact area of insert and center body,
The bond strength of enhancing between the two.
Preferably, along the middle part of the second slot position to close to the direction at the both ends of the second slot position, the depth of the second slot position is gradual
Reduce.
Preferably, the left end of mounting hole and right end are equipped with the second slot position, the left end and right end of insert be respectively equipped with
Corresponding second protrusion in second slot position, along the direction from the middle part of the second protrusion to the upper end of the second protrusion, the second protrusion is convex
The thickness for going out insert outside wall surface is gradually reduced, and along the direction from the middle part of the second protrusion to the lower end of the second protrusion, second is convex
The thickness for playing protrusion insert outside wall surface is gradually reduced, i.e. the thickness of the second raised central portion is maximum, from middle part to top and bottom,
The thickness of second protrusion is gradually reduced.Certainly, the thickness of the second protrusion everywhere can also be identical.It can certainly be only in mounting hole
Left end set the second slot position, alternatively, only mounting hole right end set the second slot position, can also be set on mounting hole more
A second slot position.
Second slot position can also be arranged in the outside wall surface of insert, the outwardly formation of the internal face of mounting hole and the
The second protrusion that two slot positions are adapted.
Preferably, the second slot position is T-shaped or trapezoidal or the other shapes such as rectangle.
Embodiment nine：
A kind of center, including center body and insert.Center body is equipped with mounting hole；Insert is located at mounting hole
It is interior, and insert is equipped with earpiece holes；Wherein, one in center body and insert is equipped with the first protrusion, center body
With in insert another be equipped with for accommodate first protrusion first slot position, and the first slot position with first protrusion mutually fit
Match somebody with somebody.
Preferably, center body is metal center body, and insert is plastic cement insert.
Preferably, center body and insert are the integral structure using in-mould injection technological forming, wherein center sheet
Body is mold insert, and center body is put into the mold cavity used in in-mould injection technological forming, is molded into the mold cavity
Resin used in type insert, resin solidification are molded to form center.Certainly, center body and insert can also be split type knots
Structure, center body and insert are separately formed, and are connected by screw or are buckled again etc. connections both after being separately formed.
Preferably, the inner wall of mounting hole to form the first protrusion towards being protruded close to the direction of insert, and the first slot position is located at
On insert.
In correlation technique, the total height (thickness) of center body is 4.99mm, a diameter of 3.6mm of earpiece holes, insert
One-sided thickness (the distance between internal face of the internal face of earpiece holes to mounting hole) is 0.23mm, in earpiece holes to center body
The thickness on border is 0.73mm, and the thickness of earpiece holes to center body lower boundary is 0.67mm, so strong above and below center body
Degree is all weaker.
After setting mounting hole on center body, the intensity of center body is lower, and when mobile terminal falls, center body is set
It puts and deformation is easily fallen at mounting hole.First protrusion is arranged on to the volume that center body is increased on center body, Neng Gouzeng
The structural strength of persistent erection frame body.
Preferably, on the one hand the internal face of the first non-bulging earpiece holes of protrusion ensures the normal function of earpiece holes, the opposing party
Improve the aesthetics of earpiece holes in face.
Preferably, the scope of the thickness C of the first protrusion is 0.05mm~0.15mm, and the thickness of the first protrusion can be but not
It is limited to 0.05mm, 0.10mm or 0.15mm.
Preferably, first protrusion width H (width refer in Fig. 1 perpendicular to paper aspect size, i.e., first is convex
Play the size along the axis direction of earpiece holes) scope for 0.7mm~1.0mm, the width of the first protrusion can be but be not limited to
0.7mm, 0.8mm, 0.9mm or 1.0mm.
Preferably, the first protrusion is located at the upper end or lower end of mounting hole.Along the middle part of the first protrusion to close to the first protrusion
Both ends direction, first protrusion thickness be gradually reduced, first protrusion maximum gauge be the first raised central portion thickness.
Preferably, the top and bottom of mounting hole are equipped with the first protrusion, along from the middle part of the first protrusion to the first protrusion
Right end direction, the thickness in the first protrusion protrusion inner wall of the hole installing face is gradually reduced, along from the middle part of the first protrusion to first
The direction of the left end of protrusion, the thickness in the first protrusion protrusion inner wall of the hole installing face are gradually reduced, i.e. the thickness of the first raised central portion
Maximum is gradually reduced from middle part to left end with right end, the thickness of the first protrusion.Certainly, the thickness of the first protrusion everywhere can also
It is identical.First protrusion can also be only set in the upper end of mounting hole, alternatively, only setting the first protrusion in the lower end of mounting hole, also
More first protrusions can be set on mounting hole.
Certainly, the left or right or the other positions positioned at mounting hole that the first protrusion can also be located at mounting hole.
Preferably, the direction of insert to the internal face close to mounting hole protrudes to form the second protrusion, the inner wall of mounting hole
Face is equipped with to accommodate the second slot position of the second protrusion, and the second protrusion is adapted with the second slot position.
The outside wall surface of insert is outwardly to form the second protrusion, and the internal face of mounting hole is equipped with mutually suitable with the second protrusion
The the second slot position matched somebody with somebody, the second protrusion is located in the second slot position, so as to further enhance the contact area of insert and center body,
The bond strength of enhancing between the two.
Preferably, the second slot position width E (width refer in Fig. 1 perpendicular to paper aspect size, i.e. the second slot
Size of the position along the axis direction of earpiece holes) scope for 0.2mm~0.5mm, the width of the second slot position can be but be not limited to
0.2mm, 0.3mm, 0.4mm or 0.5mm.
The internal face of the second non-bulging earpiece holes in slot position so that the setting of the second slot position and the second protrusion does not influence center
Appearance.
Preferably, the second slot position is located at the left or right of mounting hole.Along the middle part of the second slot position to close to the second slot position
Both ends direction, the depth of the second slot position is gradually reduced.
Preferably, the left end of mounting hole and right end are equipped with the second slot position, the left end and right end of insert be respectively equipped with
Corresponding second protrusion in second slot position, along the direction from the middle part of the second protrusion to the upper end of the second protrusion, the second protrusion is convex
The thickness for going out insert outside wall surface is gradually reduced, and along the direction from the middle part of the second protrusion to the lower end of the second protrusion, second is convex
The thickness for playing protrusion insert outside wall surface is gradually reduced, i.e. the thickness of the second raised central portion is maximum, from middle part to top and bottom,
The thickness of second protrusion is gradually reduced.Certainly, the thickness of the second protrusion everywhere can also be identical.It can certainly be only in mounting hole
Left end set the second slot position, alternatively, only mounting hole right end set the second slot position, can also be set on mounting hole more
A second slot position.
Certainly, the second slot position or positioned at the upper end of mounting hole or lower end or the other positions positioned at mounting hole.
Second slot position can also be arranged in the outside wall surface of insert, the outwardly formation of the internal face of mounting hole and the
The second protrusion that two slot positions are adapted.
Preferably, the second slot position is T-shaped or trapezoidal or the other shapes such as rectangle.
As shown in Figure 1 to Figure 3, the embodiment of the utility model the second aspect provides a kind of bottom cover, including bottom cover body 1
And insert.Bottom cover body 1 is equipped with mounting hole 13；Insert is located in mounting hole 13, and insert is equipped with earpiece holes；Its
In, one in bottom cover body 1 and insert is equipped with the first protrusion 11, is set on another in bottom cover body 1 and insert
It is useful for accommodating the first slot position of the first protrusion 11, and the first slot position is adapted with the first protrusion 11.
The bottom cover that the embodiment of the utility model the second aspect provides, bottom cover body 1 are equipped with the appearance with insert
The mounting hole 13 that face is adapted, insert are located in the mounting hole 13 of bottom cover body 1, and the middle part of insert is equipped with to be inserted into ear
The earpiece holes of machine, the preferably axis of mounting hole 13 and the axis of earpiece holes overlap.
The internal face of mounting hole 13 is equipped with the first protrusion 11 to (inside) protrusion in direction close to insert, insert
Outside wall surface be equipped with the first slot position for being adapted with the first protrusion 11, the first protrusion 11 is inserted into the first slot position, passes through first
The cooperation of 11 and first slot position of protrusion, can enhance the bond strength between bottom cover body 1 and insert, mobile terminal is avoided to fall
Stripping when falling between caused bottom cover body 1 and insert.Can also be insert outside wall surface be equipped with to close to installation
First protrusion 11 of (outside) protrusion in direction in hole 13, the internal face of mounting hole 13 are equipped with the be adapted with the first protrusion 11
One slot position, the first protrusion 11 are inserted into the first slot position.
Embodiment ten：
As shown in Figure 1 to Figure 3, a kind of bottom cover, including bottom cover body 1 and insert.Bottom cover body 1 is equipped with mounting hole
13；Insert is located in mounting hole 13, and insert is equipped with earpiece holes；Wherein, on one in bottom cover body 1 and insert
Equipped with the first protrusion 11, another in bottom cover body 1 and insert is equipped with for accommodating the first slot position of the first protrusion 11,
And first slot position be adapted with the first protrusion 11.
Preferably, bottom cover body 1 is metal bottom cover body 1, and insert is plastic cement insert.
Preferably, bottom cover body 1 and insert are the integral structure using in-mould injection technological forming, wherein bottom cover sheet
Body 1 is mold insert, and bottom cover body 1 is put into the mold cavity used in in-mould injection technological forming, the injection in the mold cavity
Resin used in forming insert, resin solidification are molded to form bottom cover.Certainly, bottom cover body 1 and insert can also be splits
Formula structure, bottom cover body 1 and insert are separately formed, and are connected by screw or are buckled again etc. connections both after being separately formed.
Preferably, the inner wall of mounting hole 13 protrudes to form the first protrusion 11 towards the direction close to insert, the first slot position
On insert.
In correlation technique, the total height (thickness) of bottom cover body 1 is 4.99mm, a diameter of 3.6mm of earpiece holes, insert
One-sided thickness (the distance between internal face of earpiece holes to the internal face of mounting hole 13) be 0.23mm, earpiece holes to bottom cover body
The thickness of 1 coboundary is 0.73mm, and the thickness of earpiece holes to 1 lower boundary of bottom cover body is 0.67mm, so bottom cover body is about 1
Intensity it is all weaker.
After setting mounting hole 13 on bottom cover body 1, the intensity of bottom cover body 1 is lower, when mobile terminal falls, bottom cover sheet
Body 1 sets and is easily fallen deformation at mounting hole 13.First protrusion 11 is arranged on bottom cover body 1 and increases bottom cover body 1
Volume can enhance the structural strength of bottom cover body 1.
Preferably, the scope of the thickness C of the first protrusion 11 is 0.05mm~0.15mm, and the thickness of the first protrusion 11 can be
But it is not limited to 0.05mm, 0.10mm or 0.15mm.
Preferably, the first protrusion 11 width H (width refer in Fig. 1 perpendicular to paper aspect size, i.e., first
Size of the protrusion along the axis direction of earpiece holes) scope for 0.7mm~1.0mm, the width of the first protrusion 11 can be but not
It is limited to 0.7mm, 0.8mm, 0.9mm or 1.0mm.
Embodiment 11：
As shown in Figure 1 to Figure 3, a kind of bottom cover, including bottom cover body 1 and insert.Bottom cover body 1 is equipped with mounting hole
13；Insert is located in mounting hole 13, and insert is equipped with earpiece holes；Wherein, on one in bottom cover body 1 and insert
Equipped with the first protrusion 11, another in bottom cover body 1 and insert is equipped with for accommodating the first slot position of the first protrusion 11,
And first slot position be adapted with the first protrusion 11.
Preferably, bottom cover body 1 is metal bottom cover body 1, and insert is plastic cement insert.
Preferably, bottom cover body 1 and insert are the integral structure using in-mould injection technological forming, wherein bottom cover sheet
Body 1 is mold insert, and bottom cover body 1 is put into the mold cavity used in in-mould injection technological forming, the injection in the mold cavity
Resin used in forming insert, resin solidification are molded to form bottom cover.Certainly, bottom cover body 1 and insert can also be splits
Formula structure, bottom cover body 1 and insert are separately formed, and are connected by screw or are buckled again etc. connections both after being separately formed.
Preferably, the inner wall of mounting hole 13 protrudes to form the first protrusion 11 towards the direction close to insert, the first slot position
On insert.
In correlation technique, the total height (thickness) of bottom cover body 1 is 4.99mm, a diameter of 3.6mm of earpiece holes, insert
One-sided thickness (the distance between internal face of earpiece holes to the internal face of mounting hole 13) be 0.23mm, earpiece holes to bottom cover body
The thickness of 1 coboundary is 0.73mm, and the thickness of earpiece holes to 1 lower boundary of bottom cover body is 0.67mm, so bottom cover body is about 1
Intensity it is all weaker.
After setting mounting hole 13 on bottom cover body 1, the intensity of bottom cover body 1 is lower, when mobile terminal falls, bottom cover sheet
Body 1 sets and is easily fallen deformation at mounting hole 13.First protrusion 11 is arranged on bottom cover body 1 and increases bottom cover body 1
Volume can enhance the structural strength of bottom cover body 1.
Preferably, the internal face of the first raised 11 non-bulging earpiece holes, on the one hand ensures the normal function of earpiece holes, another
Aspect improves the aesthetics of earpiece holes.
Embodiment 12：
As shown in Figure 1 to Figure 3, a kind of bottom cover, including bottom cover body 1 and insert.Bottom cover body 1 is equipped with mounting hole
13；Insert is located in mounting hole 13, and insert is equipped with earpiece holes；Wherein, on one in bottom cover body 1 and insert
Equipped with the first protrusion 11, another in bottom cover body 1 and insert is equipped with for accommodating the first slot position of the first protrusion 11,
And first slot position be adapted with the first protrusion 11.
Preferably, bottom cover body 1 is metal bottom cover body 1, and insert is plastic cement insert.
Preferably, bottom cover body 1 and insert are the integral structure using in-mould injection technological forming, wherein bottom cover sheet
Body 1 is mold insert, and bottom cover body 1 is put into the mold cavity used in in-mould injection technological forming, the injection in the mold cavity
Resin used in forming insert, resin solidification are molded to form bottom cover.Certainly, bottom cover body 1 and insert can also be splits
Formula structure, bottom cover body 1 and insert are separately formed, and are connected by screw or are buckled again etc. connections both after being separately formed.
Preferably, the inner wall of mounting hole 13 protrudes to form the first protrusion 11 towards the direction close to insert, the first slot position
On insert.
In correlation technique, the total height (thickness) of bottom cover body 1 is 4.99mm, a diameter of 3.6mm of earpiece holes, insert
One-sided thickness (the distance between internal face of earpiece holes to the internal face of mounting hole 13) be 0.23mm, earpiece holes to bottom cover body
The thickness of 1 coboundary is 0.73mm, and the thickness of earpiece holes to 1 lower boundary of bottom cover body is 0.67mm, so bottom cover body is about 1
Intensity it is all weaker.
After setting mounting hole 13 on bottom cover body 1, the intensity of bottom cover body 1 is lower, when mobile terminal falls, bottom cover sheet
Body 1 sets and is easily fallen deformation at mounting hole 13.First protrusion 11 is arranged on bottom cover body 1 and increases bottom cover body 1
Volume can enhance the structural strength of bottom cover body 1.
Preferably, along the middle part of the first protrusion 11 to close to the direction at the both ends of the first protrusion 11, the thickness of the first protrusion 11
Degree is gradually reduced, and the maximum gauge of the first protrusion 11 is the thickness in the middle part of the first protrusion 11.
Preferably, the top and bottom of mounting hole 13 are equipped with the first protrusion 11, along from the middle part of the first protrusion 11 to the
The direction of the right end of one protrusion 11, the thickness that the first protrusion 11 protrudes 13 internal face of mounting hole are gradually reduced, and edge is raised from first
11 middle part to the direction of the left end of the first protrusion 11, the thickness that the first protrusion 11 protrudes 13 internal face of mounting hole are gradually reduced,
The thickness at 11 middle part of the i.e. first protrusion is maximum, is gradually reduced from middle part to left end with right end, the thickness of the first protrusion 11.Certainly,
The thickness of first protrusion 11 everywhere can also be identical.Can also first protrusion 11 only be set in the upper end of mounting hole 13, alternatively, only
First protrusion 11 is set in the lower end of mounting hole 13, more first protrusions 11 can also be set on mounting hole 13.
Embodiment 13：
As shown in Figure 1 to Figure 3, a kind of bottom cover, including bottom cover body 1 and insert.Bottom cover body 1 is equipped with mounting hole
13；Insert is located in mounting hole 13, and insert is equipped with earpiece holes；Wherein, on one in bottom cover body 1 and insert
Equipped with the first protrusion 11, another in bottom cover body 1 and insert is equipped with for accommodating the first slot position of the first protrusion 11,
And first slot position be adapted with the first protrusion 11.
Preferably, bottom cover body 1 is metal bottom cover body 1, and insert is plastic cement insert.
Preferably, bottom cover body 1 and insert are the integral structure using in-mould injection technological forming, wherein bottom cover sheet
Body 1 is mold insert, and bottom cover body 1 is put into the mold cavity used in in-mould injection technological forming, the injection in the mold cavity
Resin used in forming insert, resin solidification are molded to form bottom cover.Certainly, bottom cover body 1 and insert can also be splits
Formula structure, bottom cover body 1 and insert are separately formed, and are connected by screw or are buckled again etc. connections both after being separately formed.
Preferably, the inner wall of mounting hole 13 protrudes to form the first protrusion 11 towards the direction close to insert, the first slot position
On insert.
In correlation technique, the total height (thickness) of bottom cover body 1 is 4.99mm, a diameter of 3.6mm of earpiece holes, insert
One-sided thickness (the distance between internal face of earpiece holes to the internal face of mounting hole 13) be 0.23mm, earpiece holes to bottom cover body
The thickness of 1 coboundary is 0.73mm, and the thickness of earpiece holes to 1 lower boundary of bottom cover body is 0.67mm, so bottom cover body is about 1
Intensity it is all weaker.
After setting mounting hole 13 on bottom cover body 1, the intensity of bottom cover body 1 is lower, when mobile terminal falls, bottom cover sheet
Body 1 sets and is easily fallen deformation at mounting hole 13.First protrusion 11 is arranged on bottom cover body 1 and increases bottom cover body 1
Volume can enhance the structural strength of bottom cover body 1.
Preferably, the first protrusion 11 is located at the upper end or lower end of mounting hole 13.
Embodiment 14：
On the basis of embodiment ten, embodiment 11, embodiment 12 or embodiment 13, further, insert
It protrudes to form the second protrusion to the direction of the internal face close to mounting hole 13, the internal face of mounting hole 13 is equipped with to accommodate the
Second slot position 12 of two protrusions, and the second protrusion is adapted with the second slot position 12.
The outside wall surface of insert is outwardly to form the second protrusion, and the internal face of mounting hole 13 is equipped with and the second raised phase
Second slot position 12 of adaptation, the second protrusion are located in the second slot position 12, so as to further enhance connecing for insert and bottom cover body 1
Contacting surface is accumulated, and enhances bond strength between the two.
Preferably, the second slot position 12 width E (width refer in Fig. 1 perpendicular to paper aspect size, i.e., second
Size of the slot position along the axis direction of earpiece holes) scope for 0.2mm~0.5mm, the width of the second slot position 12 can be but not
It is limited to 0.2mm, 0.3mm, 0.4mm or 0.5mm.
Second slot position 12 can also be arranged in the outside wall surface of insert, the outwardly formation of internal face of mounting hole 13
The second protrusion being adapted with the second slot position 12.
Preferably, the second slot position 12 is T-shaped or trapezoidal or the other shapes such as rectangle.
Embodiment 15：
On the basis of embodiment ten, embodiment 11, embodiment 12 or embodiment 13, further, insert
It protrudes to form the second protrusion to the direction of the internal face close to mounting hole 13, the internal face of mounting hole 13 is equipped with to accommodate the
Second slot position 12 of two protrusions, and the second protrusion is adapted with the second slot position 12.
The outside wall surface of insert is outwardly to form the second protrusion, and the internal face of mounting hole 13 is equipped with and the second raised phase
Second slot position 12 of adaptation, the second protrusion are located in the second slot position 12, so as to further enhance connecing for insert and bottom cover body 1
Contacting surface is accumulated, and enhances bond strength between the two.
The internal face of second slot position, 12 non-bulging earpiece holes so that the setting of the second slot position 12 and the second protrusion does not influence bottom
The appearance of lid.
Embodiment 16：
On the basis of embodiment ten, embodiment 11, embodiment 12 or embodiment 13, further, insert
It protrudes to form the second protrusion to the direction of the internal face close to mounting hole 13, the internal face of mounting hole 13 is equipped with to accommodate the
Second slot position 12 of two protrusions, and the second protrusion is adapted with the second slot position 12.
The outside wall surface of insert is outwardly to form the second protrusion, and the internal face of mounting hole 13 is equipped with and the second raised phase
Second slot position 12 of adaptation, the second protrusion are located in the second slot position 12, so as to further enhance connecing for insert and bottom cover body 1
Contacting surface is accumulated, and enhances bond strength between the two.
Preferably, the second slot position 12 is located at the left or right of mounting hole 13.
Embodiment 17：
On the basis of embodiment ten, embodiment 11, embodiment 12 or embodiment 13, further, insert
It protrudes to form the second protrusion to the direction of the internal face close to mounting hole 13, the internal face of mounting hole 13 is equipped with to accommodate the
Second slot position 12 of two protrusions, and the second protrusion is adapted with the second slot position 12.
The outside wall surface of insert is outwardly to form the second protrusion, and the internal face of mounting hole 13 is equipped with and the second raised phase
Second slot position 12 of adaptation, the second protrusion are located in the second slot position 12, so as to further enhance connecing for insert and bottom cover body 1
Contacting surface is accumulated, and enhances bond strength between the two.
Along the middle part of the second slot position 12 to close to the direction at the both ends of the second slot position 12, the depth of the second slot position 12 gradually subtracts
It is small.
Preferably, the left end of mounting hole 13 and right end are equipped with the second slot position 12, and the left end and right end of insert are set respectively
There is second protrusion corresponding with the second slot position 12, along the direction from the middle part of the second protrusion to the upper end of the second protrusion, second
Protrusion protrusion insert outside wall surface thickness be gradually reduced, along from second protrusion middle part to second protrusion lower end direction,
The thickness of second protrusion protrusion insert outside wall surface is gradually reduced, i.e. the thickness of the second raised central portion is maximum, from middle part to upper end
And lower end, the thickness of the second protrusion are gradually reduced.Certainly, the thickness of the second protrusion everywhere can also be identical.It can certainly be only
In the left end of mounting hole 13, the second slot position 12 is set, alternatively, second slot position 12 only is set in the right end of mounting hole 13, it can also be
More second slot positions 12 are set on mounting hole 13.
Embodiment 18：
A kind of bottom cover, including bottom cover body 1 and insert.Bottom cover body 1 is equipped with mounting hole 13；Insert is located at installation
In hole 13, and insert is equipped with earpiece holes；Wherein, one in bottom cover body 1 and insert is equipped with the first protrusion 11, bottom
Another in lid body 1 and insert is equipped with to accommodate the first slot position of the first protrusion 11, and the first slot position and first
Protrusion 11 is adapted.
Preferably, bottom cover body 1 is metal bottom cover body 1, and insert is plastic cement insert.
Preferably, bottom cover body 1 and insert are the integral structure using in-mould injection technological forming, wherein bottom cover sheet
Body 1 is mold insert, and bottom cover body 1 is put into the mold cavity used in in-mould injection technological forming, the injection in the mold cavity
Resin used in forming insert, resin solidification are molded to form bottom cover.Certainly, bottom cover body 1 and insert can also be splits
Formula structure, bottom cover body 1 and insert are separately formed, and are connected by screw or are buckled again etc. connections both after being separately formed.
Preferably, the inner wall of mounting hole 13 protrudes to form the first protrusion 11 towards the direction close to insert, the first slot position
On insert.
In correlation technique, the total height (thickness) of bottom cover body 1 is 4.99mm, a diameter of 3.6mm of earpiece holes, insert
One-sided thickness (the distance between internal face of earpiece holes to the internal face of mounting hole 13) be 0.23mm, earpiece holes to bottom cover body
The thickness of 1 coboundary is 0.73mm, and the thickness of earpiece holes to 1 lower boundary of bottom cover body is 0.67mm, so bottom cover body is about 1
Intensity it is all weaker.
After setting mounting hole 13 on bottom cover body 1, the intensity of bottom cover body 1 is lower, when mobile terminal falls, bottom cover sheet
Body 1 sets and is easily fallen deformation at mounting hole 13.First protrusion 11 is arranged on bottom cover body 1 and increases bottom cover body 1
Volume can enhance the structural strength of bottom cover body 1.
Preferably, the internal face of the first raised 11 non-bulging earpiece holes, on the one hand ensures the normal function of earpiece holes, another
Aspect improves the aesthetics of earpiece holes.
Preferably, the scope of the thickness C of the first protrusion 11 is 0.05mm~0.15mm, and the thickness of the first protrusion 11 can be
But it is not limited to 0.05mm, 0.10mm or 0.15mm.
Preferably, the first protrusion 11 width H (width refer in Fig. 1 perpendicular to paper aspect size, i.e., first
Size of the protrusion along the axis direction of earpiece holes) scope for 0.7mm~1.0mm, the width of the first protrusion 11 can be but not
It is limited to 0.7mm, 0.8mm, 0.9mm or 1.0mm.
Preferably, the first protrusion 11 is located at the upper end or lower end of mounting hole 13.Along the middle part of the first protrusion 11 to close to the
The direction at the both ends of one protrusion 11, the thickness of the first protrusion 11 are gradually reduced, and the maximum gauge of the first protrusion 11 is the first protrusion
The thickness at 11 middle parts.
Preferably, the top and bottom of mounting hole 13 are equipped with the first protrusion 11, along from the middle part of the first protrusion 11 to the
The direction of the right end of one protrusion 11, the thickness that the first protrusion 11 protrudes 13 internal face of mounting hole are gradually reduced, and edge is raised from first
11 middle part to the direction of the left end of the first protrusion 11, the thickness that the first protrusion 11 protrudes 13 internal face of mounting hole are gradually reduced,
The thickness at 11 middle part of the i.e. first protrusion is maximum, is gradually reduced from middle part to left end with right end, the thickness of the first protrusion 11.Certainly,
The thickness of first protrusion 11 everywhere can also be identical.Can also first protrusion 11 only be set in the upper end of mounting hole 13, alternatively, only
First protrusion 11 is set in the lower end of mounting hole 13, more first protrusions 11 can also be set on mounting hole 13.
Certainly, the left or right or the other positions positioned at mounting hole that the first protrusion can also be located at mounting hole.
Preferably, the direction of insert to the internal face close to mounting hole 13 protrudes to form the second protrusion, mounting hole 13
Internal face is equipped with to accommodate the second slot position 12 of the second protrusion, and the second protrusion is adapted with the second slot position 12.
The outside wall surface of insert is outwardly to form the second protrusion, and the internal face of mounting hole 13 is equipped with and the second raised phase
Second slot position 12 of adaptation, the second protrusion are located in the second slot position 12, so as to further enhance connecing for insert and bottom cover body 1
Contacting surface is accumulated, and enhances bond strength between the two.
Preferably, the second slot position 12 width E (width refer in Fig. 1 perpendicular to paper aspect size, i.e., second
Size of the slot position along the axis direction of earpiece holes) scope for 0.2mm~0.5mm, the width of the second slot position 12 can be but not
It is limited to 0.2mm, 0.3mm, 0.4mm or 0.5mm.
The internal face of second slot position, 12 non-bulging earpiece holes so that the setting of the second slot position 12 and the second protrusion does not influence bottom
The appearance of lid.
Preferably, the second slot position 12 is located at the left or right of mounting hole 13.Along the middle part of the second slot position 12 to close to the
The direction at the both ends of two slot positions 12, the depth of the second slot position 12 are gradually reduced.
Preferably, the left end of mounting hole 13 and right end are equipped with the second slot position 12, and the left end and right end of insert are set respectively
There is second protrusion corresponding with the second slot position 12, along the direction from the middle part of the second protrusion to the upper end of the second protrusion, second
Protrusion protrusion insert outside wall surface thickness be gradually reduced, along from second protrusion middle part to second protrusion lower end direction,
The thickness of second protrusion protrusion insert outside wall surface is gradually reduced, i.e. the thickness of the second raised central portion is maximum, from middle part to upper end
And lower end, the thickness of the second protrusion are gradually reduced.Certainly, the thickness of the second protrusion everywhere can also be identical.It can certainly be only
In the left end of mounting hole 13, the second slot position 12 is set, alternatively, second slot position 12 only is set in the right end of mounting hole 13, it can also be
More second slot positions 12 are set on mounting hole 13.
Certainly, the second slot position or positioned at the upper end of mounting hole or lower end or the other positions positioned at mounting hole.
As shown in Figure 1, the first protrusion is located at the upper end of mounting hole, the second slot position is located at the empty right end of installation.
Second slot position 12 can also be arranged in the outside wall surface of insert, the outwardly formation of internal face of mounting hole 13
The second protrusion being adapted with the second slot position 12.
Preferably, the second slot position 12 is T-shaped or trapezoidal or the other shapes such as rectangle.
If Fig. 1 is into Fig. 3, C 0.10mm, D (depth capacity of the second slot position) be 0.15mm, the E (width of the second slot position
Degree) for 0.4mm, F (length of the second slot position) is 2.67mm, and G (length of the first protrusion) is 3.30mm, the H (width of the first protrusion
Degree) it is 0.96mm.
The embodiment of the 3rd aspect of the utility model provides a kind of mobile terminal, including：In any of the above-described embodiment
Frame；Alternatively, the bottom cover of any of the above-described embodiment.
The mobile terminal that the embodiment of the 3rd aspect of the utility model provides, because of the embodiment including the first aspect
The bottom cover of center or the second aspect, thus the embodiment of the center or the second aspect of the embodiment with the first aspect
All advantageous effects of bottom cover, details are not described herein.Preferably, mobile terminal is mobile phone or tablet computer etc..
In conclusion the center that the utility model embodiment provides, center is in-mould injection part, center body and insert
It is combined together by in-mould injection technique.In center body and the intersection of insert, center body is equipped with to insert
Direction protrusion the first protrusion 11, the first protrusion 11 effectively increases the intensity of center body without departing from insert, at the same
Second slot position is set on center body so that the combination power of center body and insert is stronger.Pass through the first protrusion and the first slot
Position, second protrusion with set while the second slot position, effectively increase the strength and toughness of entire center earphone bore region, satisfaction
It is relevant to fall reliability requirement.
Bottom cover is in-mould injection part, and bottom cover body 1 and insert are combined together by in-mould injection technique.In bottom cover sheet
The intersection of body 1 and insert, bottom cover body 1 are equipped with the first protrusion 11 protruded to the direction of insert, the first protrusion 11
Without departing from insert, the intensity of bottom cover body 1 is effectively increased, while the second slot position is set on bottom cover body 1 so that bottom cover
The combination power of body 1 and insert is stronger.While by the first protrusion 11 and the first slot position, the second protrusion with the second slot position 12
It sets, effectively increases the strength and toughness of entire bottom cover earphone bore region, meet and relevant fall reliability requirement.
In the description of the utility model, unless otherwise clearly defined and limited, term " multiple " refers to two or two
More than a；Unless otherwise prescribed or illustrate, term " connection ", " fixation " etc. should all be interpreted broadly, for example, " connection " can be
It is fixedly connected or is detachably connected or is integrally connected or be electrically connected；It can be directly connected, it can also be in
Between medium be indirectly connected.For the ordinary skill in the art, above-mentioned term can be understood at this as the case may be
Concrete meaning in utility model.
In the description of this specification, it is to be understood that the instructions such as term " on ", " under ", "front", "rear", "left", "right"
Orientation or position relationship be based on orientation shown in the drawings or position relationship, be for only for ease of description the utility model and letter
Change description rather than instruction or imply signified device or unit must have specific direction, with specific azimuth configuration and
Operation, it is thus impossible to be interpreted as the limitation to the utility model.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that combining the particular features, structures, materials, or characteristics that the embodiment or example describe is contained at least the one of the utility model
In a embodiment or example.In the present specification, schematic expression of the above terms is not necessarily referring to identical embodiment
Or example.Moreover, the particular features, structures, materials, or characteristics of description can be in any one or more embodiments or example
In combine in an appropriate manner.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modifications, equivalent replacements and improvements are made should be included within the scope of protection of this utility model.
Claims (13)
1. a kind of center, which is characterized in that including：
Center body, the center body are equipped with mounting hole；With
Insert, in the mounting hole, and the insert is equipped with earpiece holes；
Wherein, one in the center body and the insert is equipped with the first protrusion, the center body and described embedding
Enter another first slot position for being equipped with to accommodate first protrusion in part, and the first slot position and described first convex
It rises and is adapted.
2. center according to claim 1, which is characterized in that
The inner wall of the mounting hole to form first protrusion, the first slot position towards being protruded close to the direction of the insert
On the insert；
The thickness range of first protrusion for 0.05mm~0.15mm, the width range of first protrusion for 0.7mm~
1.0mm。
3. center according to claim 1, which is characterized in that
The inner wall of the mounting hole to form first protrusion, the first slot position towards being protruded close to the direction of the insert
On the insert；
The internal face of the non-bulging earpiece holes of first protrusion and/or, along the middle part of the described first protrusion to close to described
First protrusion both ends direction, it is described first protrusion thickness reduce and/or, it is described first protrusion be located at the mounting hole
Upper end or lower end.
4. center according to any one of claim 1 to 3, which is characterized in that
It protrudes to form the second protrusion, the inner wall of the mounting hole in the direction of the insert to the internal face close to the mounting hole
Face is equipped with to accommodate the second slot position of second protrusion, and second protrusion is adapted with the second slot position.
5. center according to claim 4, which is characterized in that
The width range of the second slot position is 0.2mm~0.5mm.
6. center according to claim 4, which is characterized in that
Along the middle part of the second slot position to close to the direction at the both ends of the second slot position, the depth minus of the second slot position
It is small；And/or
The second slot position is located at the left or right of the mounting hole；And/or
The internal face of the non-bulging earpiece holes in second slot position.
7. a kind of bottom cover, which is characterized in that including：
Bottom cover body, the bottom cover body are equipped with mounting hole；With
Insert, in the mounting hole, and the insert is equipped with earpiece holes；
Wherein, one in the bottom cover body and the insert is equipped with the first protrusion, the bottom cover body and described embedding
Enter another first slot position for being equipped with to accommodate first protrusion in part, and the first slot position and described first convex
It rises and is adapted.
8. bottom cover according to claim 7, which is characterized in that
The inner wall of the mounting hole to form first protrusion, the first slot position towards being protruded close to the direction of the insert
On the insert；
The thickness range of first protrusion for 0.05mm~0.15mm, the width range of first protrusion for 0.7mm~
1.0mm。
9. bottom cover according to claim 7, which is characterized in that
The inner wall of the mounting hole to form first protrusion, the first slot position towards being protruded close to the direction of the insert
On the insert；
The internal face of the non-bulging earpiece holes of first protrusion and/or, along the middle part of the described first protrusion to close to described
First protrusion both ends direction, it is described first protrusion thickness reduce and/or, it is described first protrusion be located at the mounting hole
Upper end or lower end.
10. the bottom cover according to any one of claim 7 to 9, which is characterized in that
It protrudes to form the second protrusion, the inner wall of the mounting hole in the direction of the insert to the internal face close to the mounting hole
Face is equipped with to accommodate the second slot position of second protrusion, and second protrusion is adapted with the second slot position.
11. bottom cover according to claim 10, which is characterized in that
The width range of the second slot position is 0.2mm~0.5mm.
12. bottom cover according to claim 10, which is characterized in that
Along the middle part of the second slot position to close to the direction at the both ends of the second slot position, the depth minus of the second slot position
It is small；And/or
The second slot position is located at the left or right of the mounting hole；And/or
The internal face of the non-bulging earpiece holes in second slot position.
13. a kind of mobile terminal, which is characterized in that including：
Such as center according to any one of claims 1 to 6；Alternatively, the bottom cover as any one of claim 7 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721625410.0U CN207427235U (en) | 2017-11-29 | 2017-11-29 | Center, bottom cover and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721625410.0U CN207427235U (en) | 2017-11-29 | 2017-11-29 | Center, bottom cover and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207427235U true CN207427235U (en) | 2018-05-29 |
Family
ID=62396307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721625410.0U Active CN207427235U (en) | 2017-11-29 | 2017-11-29 | Center, bottom cover and mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207427235U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110944071A (en) * | 2018-09-21 | 2020-03-31 | Oppo广东移动通信有限公司 | Mobile terminal |
-
2017
- 2017-11-29 CN CN201721625410.0U patent/CN207427235U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110944071A (en) * | 2018-09-21 | 2020-03-31 | Oppo广东移动通信有限公司 | Mobile terminal |
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