CN216057731U

CN216057731U - Connecting structure for in-mold injection molding and electronic equipment

Info

Publication number: CN216057731U
Application number: CN202121645907.5U
Authority: CN
Inventors: 黄炎; 杜军红; 葛振纲
Original assignee: Shanghai Longcheer Technology Co Ltd
Current assignee: Shanghai Longcheer Technology Co Ltd
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2022-03-15
Anticipated expiration: 2031-07-19

Abstract

The application discloses injection moulding's connection structure and electronic equipment in mould, this structure includes: the nut is arranged in the shell, and the shell and the nut are integrally formed through injection molding. Electronic equipment, the connecting structure of injection moulding in the mould. This application nut sets up with the integrative injection moulding of casing, through the test, its pulling force more than or equal to 12KGF, and its torsion more than or equal to 1.5KGF has promoted nearly 44.8% in the aspect of the pulling force than prior art, has promoted nearly 41.7% in the aspect of the torsion.

Description

Connecting structure for in-mold injection molding and electronic equipment

Technical Field

The application belongs to the technical field of in-mold injection molding, and particularly relates to a connecting structure for in-mold injection molding and an electronic device.

Background

At present, the nuts arranged on the electronic equipment are usually subjected to a hot melting process so as to meet the requirements of fixing the nuts and ensuring the tensile force and the torsion of the nuts. However, due to the thinness and thinness of the electronic device, the thickness of the electronic device is further reduced, and the small nut is difficult to realize the requirements of tensile force and torsion force by adopting a hot melting process, so that the electronic device parts are not firmly connected, and the product quality is reduced.

SUMMERY OF THE UTILITY MODEL

To overcome the above drawbacks and deficiencies of the prior art, the present application provides an in-mold injection molding connection structure and an electronic device.

In order to solve the technical problem, the application is realized by the following technical scheme:

this application has provided injection moulding's connection structure in mould on the one hand, includes: the nut is arranged in the shell, and the shell and the nut are integrally formed through injection molding.

Further, in the connecting structure formed by injection molding in the mold, a first reinforcing part and a second reinforcing part are arranged on the outer circumference of the nut, and the first reinforcing part and the second reinforcing part are arranged in parallel.

Further, in the connecting structure formed by injection molding in the mold, an annularly arranged groove is further arranged between the first reinforcing part and the second reinforcing part.

Further, in the connecting structure formed by injection molding in the mold, the first reinforcing part comprises a plurality of first ribs which are continuously and obliquely arranged.

Further, in the connecting structure formed by injection molding in the mold, the second reinforcing part comprises a plurality of second ribs which are continuously and obliquely arranged.

Further, in the connecting structure formed by injection molding in the mold, the first convex rib and the second convex rib are symmetrically arranged along the plane where the central axis of the groove is located.

Further, foretell in-mold injection moulding's connection structure, wherein, first protruding muscle with the surface of second protruding muscle is the arcwall face, just the arcwall face is no longer than the outline of the body of nut.

Further, foretell in-mold injection moulding's connection structure, wherein, the nut still includes at least one chamfer structure, chamfer structure circumference set up in the terminal surface of nut with the junction of first rib or second rib, perhaps, chamfer structure circumference set up in the terminal surface of nut with the junction of the hole face of nut.

Further, in the connecting structure formed by injection molding in the mold, a chamfer angle of the chamfer structure is 30 to 60 degrees.

The application also provides electronic equipment comprising the in-mold injection molding connecting structure.

Compared with the prior art, the method has the following technical effects:

this application nut sets up with the integrative injection moulding of casing, through the test, its pulling force more than or equal to 12KGF, and its torsion more than or equal to 1.5KGF has promoted nearly 44.8% in the aspect of the pulling force than prior art, has promoted nearly 41.7% in the aspect of the torsion.

The nut is further provided with a first reinforcing part and a second reinforcing part which are arranged in parallel in the circumferential direction, an annularly arranged groove is arranged between the first reinforcing part and the second reinforcing part, the first reinforcing part is provided with a plurality of first convex ribs which are continuously and obliquely arranged, the second reinforcing part is provided with a plurality of second convex ribs which are continuously and obliquely arranged, the first convex ribs and the second convex ribs are symmetrically arranged along a plane where a central axis of the groove is located, and the tensile force and the torsion force of the nut are enhanced through the arrangement; the outer surfaces of the first convex rib and the second convex rib are arc-shaped surfaces, the arc-shaped surfaces do not exceed the outer contour of the nut body, and through the arrangement, when the nut needs to be manually taken, the smooth outer surfaces are safer; the nut further comprises a chamfering structure, the chamfering structure is circumferentially arranged at the joint of the end face of the nut and the first reinforcing part or the second reinforcing part respectively, or is arranged at the joint of the end face of the nut and the inner hole face of the nut, burrs generated during nut production are removed through the chamfering structure, and the nut is combined with the shell conveniently.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

FIG. 1: the schematic diagram of the connection between the nut and the shell in one embodiment of the application;

FIG. 2: the structure of the nut in one embodiment of the application is schematic;

FIG. 3: the structure of the nut in one embodiment of the application is schematic;

FIG. 4: a front cross-sectional view of the structure shown in FIG. 2;

FIG. 5: a top view of the structure shown in FIG. 2;

in the figure: nut 1, casing 2, first rib 10, second rib 11, recess 12, first protruding muscle 13, second protruding muscle 14 and chamfer structure 15.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In one embodiment of the present application, as shown in fig. 1, an in-mold injection molded connection structure includes: casing 2 and nut 1, nut 1 set up in the casing 2, casing 2 with the integrative injection moulding of nut 1 sets up.

This embodiment has specifically adopted the high nut 1 of a 1.2mm and 2 integrative injection moulding settings of casing, through the test, its pulling force more than or equal to 12KGF, its torsion more than or equal to 1.5KGF, has carried out pulling force test and torsion test to the nut of prior art (hot melt technology) simultaneously, and the concrete experimental data of gained are as follows:

table 1 tensile test recording chart of nut scheme in prior art (hot melting process)

Product numbering	1	2	3	4	Remarks for note
						Pulling force (KGF)	5.67	5.21	6.27	4.36	Falling off

Table 2 torsion test recording chart of prior art (hot melting process) nut scheme

Product numbering	1	2	3	4	Remarks for note
						Torsion (KGF)	0.6	0.6	0.7	0.6	Sliding tooth

According to the data, the four groups of data mean values of the tensile test of the nut in the prior art are compared with the tensile force of the nut 1 in the embodiment, so that the tensile force of the nut 1 in the embodiment is improved by 44.8%; comparing the four sets of data mean values of the torque test of the nut of the prior art with the torque of the nut 1 of the present embodiment, the torque of the nut 1 of the present embodiment is improved by nearly 41.7%.

As shown in fig. 2 to 5, a first reinforcing portion 10 and a second reinforcing portion 11 are provided on the outer circumference of the nut 1, and the first reinforcing portion 10 and the second reinforcing portion 11 are provided in parallel.

Optionally, an annularly arranged groove 12 is further provided between the first reinforcement part 10 and the second reinforcement part 11, and the groove 12 can accommodate the housing 2 to enhance the tensile force and the torsion force of the nut 1 during the in-mold injection molding.

Optionally, the first reinforcing part 10 includes a plurality of first ribs 13 continuously and obliquely arranged, and the tensile force and the torsional force of the nut 1 can be further enhanced by continuously and obliquely arranging the first ribs 13.

Optionally, the second reinforcing part 11 includes a plurality of second ribs 14 disposed continuously and obliquely, and the pulling force and the torsion force of the nut 1 can be further enhanced by disposing the second ribs 14 continuously and obliquely.

Optionally, the first rib 13 and the second rib 14 are symmetrically disposed along a plane where the central axis of the groove 12 is located, that is, the directions of the first rib 13 and the second rib 14 which are obliquely disposed are different so as to further enhance the tensile force and the torsion of the nut 1.

Optionally, the outer surfaces of the first ribs 13 and the second ribs 14 are arc-shaped surfaces, the arc-shaped surfaces are not beyond the outer contour of the body of the nut 1, and by means of the arrangement, when manual taking is needed, the smooth outer surfaces are safer.

Optionally, the nut 1 in this embodiment further includes four chamfering structures 15, which is exemplified, and of course, technicians in this neighborhood are motivated to adaptively increase and decrease the number of the chamfering structures 15. The chamfer structures 15 are respectively circumferentially arranged at the joint of the end surface of the nut 1 and the first reinforcing part 10 and the second reinforcing part 11, and at the joint of the end surface of the nut 1 and the inner hole surface of the nut 1. By providing the chamfer structure 15, burrs generated when the nut 1 is produced are removed, facilitating the coupling of the nut 1 with the housing 2.

Optionally, the chamfer angle of the chamfer structure 15 is 30 ° to 60 °.

Preferably, the chamfer angle is 45 ° to facilitate turning.

The application also provides an electronic device, which comprises the connecting structure formed by injection molding in the mold.

The connection structure of the in-mold injection molding is described above, and will not be described herein.

The electronic device includes but is not limited to a mobile phone or a tablet computer, etc.

This application nut 1 sets up with 2 integrative injection moulding of casing, through the test, its pulling force more than or equal to 12KGF, and its torsion more than or equal to 1.5KGF has promoted nearly 44.8% in the aspect of the pulling force than prior art, has promoted nearly 41.7% in the aspect of the torsion.

In the description of the present application, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The above embodiments are merely to illustrate the technical solutions of the present application and are not limitative, and the present application is described in detail with reference to preferred embodiments. It will be understood by those skilled in the art that various modifications and equivalent arrangements may be made in the present invention without departing from the spirit and scope of the present invention and shall be covered by the appended claims.

Claims

1. An in-mold injection molding connecting structure, comprising: the nut is arranged in the shell, and the shell and the nut are integrally formed in an injection molding mode; the nut is characterized in that a first reinforcing part and a second reinforcing part are arranged on the outer circumference of the nut in a circumferential mode and are arranged in parallel.

2. The in-mold injection molded connecting structure according to claim 1, wherein an annularly arranged groove is further provided between the first reinforcing portion and the second reinforcing portion.

3. The in-mold injection molded connecting structure according to claim 2, wherein the first reinforcing portion includes a plurality of first ribs arranged continuously and obliquely.

4. The in-mold injection molded connecting structure according to claim 3, wherein the second reinforcing portion includes a plurality of second ribs arranged continuously and obliquely.

5. The in-mold injection molded connecting structure according to claim 4, wherein the first rib and the second rib are symmetrically arranged along a plane where the central axis of the groove is located.

6. The in-mold injection molding connecting structure according to claim 4, wherein the outer surfaces of the first rib and the second rib are arc surfaces, and the arc surfaces do not exceed the outer contour of the nut body.

7. The in-mold injection molding connecting structure according to claim 1 or 2, wherein the nut further comprises at least one chamfer structure, and the chamfer structure is circumferentially arranged at the joint of the end surface of the nut and the first reinforcing portion or the second reinforcing portion, or the chamfer structure is circumferentially arranged at the joint of the end surface of the nut and the inner hole surface of the nut.

8. The in-mold injection molded connecting structure according to claim 7, wherein the chamfer angle of the chamfer structure is 30 ° to 60 °.

9. An electronic device comprising the in-mold injection molded connection structure according to any one of claims 1 to 8.