TWM471049U - Electrical connector - Google Patents

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector having an improved structure of the insert.

In the process of plastic parts, in addition to the size must meet the requirements, the appearance of the product is also extremely important, common appearance defects are insufficient filling, burrs, weld lines, flow lines, shrinkage, spray lines, warping, bubbles and charring, etc. The key factors affecting these factors are injection molding, mold design, molding machine and molding conditions, among which the influence of raw materials is the highest, and designers often control the defects in appearance by the above several factors.

In the embedded molding, in addition to being molded by the inner mold wall, the insert is interfered and shaped by the insert. Therefore, it is more difficult to form than the general injection molded part, and requires more precise control factors.

Referring to the first figure, an insert molding component 1' has a body 10'. The body 10' is internally provided with a plurality of inserts 20', wherein one end of the insert 20' is bent toward the surface of the body 10'. Extending to form a contact portion 21', the contact portion 21' is exposed on the surface of the body 10', and the other end of the insert 20' is connected to the outside of the body 10'; the surface of the body 10' is the boundary of the mold during the molding process. The body 10' is a space for injection molding. Since the contact portion 21' is formed on the surface of the body 10' after being extended by the inlay 20', the contact portion 20' is contacted during molding. The surface of the portion 21' will be attached to the mold, and the bending beside the contact portion 21' will cause the space around the mold and the contact portion 21' to form a tapered point V. When the glue is filled, if the injection pressure is too large The glue injection near the tapered point V pushes toward the bend, and at the same time forms a plurality of directions of extrusion, causing the contact portion 21' to be slightly offset inward, so that a gap is formed between the contact portion 21' and the mold. ,and then Raw burrs, so the injection pressure of the mold is forced to decrease, and the pressure reduction directly reduces the fluidity, may affect the flow of other flow channels, or the molding time changes, etc., so the product like the insert molding component is It takes a lot of time to set parameters in the manufacturing process and the defect rate is also high.

In order to overcome the defects in the structure of the insert molding element, the present invention proposes an electrical connector, the structure of which is to solve the technical difficulty caused by the tapered point.

The purpose of this creation is to address the deficiencies of the prior art described above and to disclose an electrical connector that overcomes the technical difficulties caused by tapered cusps.

In order to achieve the above object, the present invention provides an electrical connector comprising: a glue injection body having at least one functional surface; and at least one insert having an embedded body disposed in the glue injection body and embedded in the function of the body injection body The surface is bent to extend at least one bent portion, and the bent portion then extends to a base portion in a substantially parallel direction of the functional surface, wherein the bent portion and the base portion are also disposed in the glue injection body, and the base surface extends perpendicularly to the functional surface at least a difference portion The top surface of the step is exposed on the functional surface.

When injection molding, the surface of the step portion is opposite to the mold. After the injection, since the side edge of the step portion is perpendicular to the surface of the mold, the flow of the glue is directed to the periphery of the step portion via the surface of the base portion and the horizontal direction of the functional surface. Moreover, since the wall surface of the vertical step portion is in contact with the wall surface and the flow direction is perpendicular, it is difficult to cause the glue injection to be guided to the base portion, so that the step portion can effectively prevent the technical difficulty caused by the tapered point.

V‧‧‧ tapered tip 1‧‧‧Electrical connector 10‧‧‧Insert 11‧‧‧Inlay 12‧‧‧Folding part 13‧‧‧ Base 14‧‧‧ Connection 15‧‧‧ Ministry 20‧‧‧Glue 21‧‧‧Functional part 210‧‧‧Functional surface 211‧‧‧Retaining groove 22‧‧‧Installation part 220‧‧‧ Connection surface 221‧‧‧Bucking 23‧‧‧Sewing body 24 ‧‧‧Sewing body 25‧‧‧ recessed hole 26‧‧ ‧Block 30‧‧‧Shading shell 31‧‧‧Bottom wall 310‧‧‧ Port 311‧‧‧Fixed piece 312‧‧ ‧ buttonhole 32 ‧‧‧Sidewall 320‧‧‧Interference hole 321‧‧‧ Grounding piece 33‧‧‧ Opening 40‧‧‧Circuit board 41‧‧‧Metal contact 50‧‧‧ Covered casing

The first figure is a perspective cross-sectional view of a conventional insert-molded component showing the tapered cusps created by the bends adjacent the contact portion and the surface of the body.

The second figure is a perspective view of the present electrical connector and a perspective view of the circuit board.

The third figure is a perspective view of the injection molding of the electrical connector in the second figure and a perspective view of the insert.

The fourth figure is an exploded view of the injection body of the electrical connector in the second figure.

The fifth drawing is a perspective view of the insert of the electrical connector in the second figure and a partial enlarged view.

The sixth figure is another embodiment of the insert of the present electrical connector showing the variability of the shape of the top surface of the step.

The seventh figure is a further embodiment of the insert of the present invention, wherein the angle at which the raised structure of the stepped portion extends from the surface of the base to the functional surface is selectable.

The eighth figure is another embodiment of the present invention, wherein the height of the surface on which the step portion is exposed on the functional surface is selectable.

Figure 9 is a perspective view of the shielded housing of the electrical connector of the second figure.

To clarify the technical content, structural features, objectives, and effects of the present invention, the embodiments are described in detail below with reference to the drawings.

Referring to the second figure, the present electrical connector 1 includes at least one insert 10, a glue body 20, a shielding shell 30, a circuit board 40, and a cladding housing 50. The insert 10 is embedded in the glue injection body 20 by insert molding. One end edge of the insert 10 is exposed on the surface of the glue injection body 20, and the other end edge of the insert 10 extends outside the glue injection body 20 to provide electrical conduction. The shielding housing 30 encloses a portion of the injection molding body 20, and a portion of the insert 10 extending outside the glue injection body 20 is connected to the circuit board 40, and the covering housing 50 covers a portion of the circuit board 40 and the shielding housing 30.

Referring to the third figure, the glue body 20 is a horizontally symmetrical structure, including a functional portion 21, which is substantially rectangular, and the upper surface and the lower surface are used as the functional surface 210, and a pair of inward sides of the functional portion 21 are provided. The recessed buckle groove 211 has a mounting portion 22 extending from the side of the functional portion 21, and the mounting portion 22 forms a connecting surface 220 on the surface connected to the functional portion 21, and the circuit board 40 is vertically disposed on the connecting surface 220, and the mounting portion 22 An undercut 221 is respectively disposed on the upper surface and the lower surface.

Referring to the fourth figure, the colloid 20 can be further divided into an upper colloid 23 and a lower colloid 24 along the symmetrical horizontal plane. A pair of concave holes 25 and bumps 26 are disposed on the opposite surfaces of the upper colloid 23 and the lower colloid 24. Cooperating with each other, the upper colloid 23 and the lower colloid 24 form the same structure, which has the advantage that the complexity of the mold can be reduced and the molding conditions can be more easily achieved without developing redundant molds (when the mold is simplified, the injection molding can be reduced) Forming pressure, which in turn reduces the generation of burrs).

Referring to the third and fifth figures, the insert 10 has an insert 11 disposed in the glue body 20, and the insert body 11 is bent in the direction of the functional surface 210 of the glue body 20 to extend at least one bend portion 12, and the bend The folded portion 12 is substantially zigzag-shaped, and the bent portion 12 then extends to the base portion 13 in a substantially parallel direction to the functional surface 210. The bent portion 12 and the base portion 13 are also disposed in the glue body 20, and the insert body 11 is mounted inward by the glue injection body 20. The connecting surface 220 of the portion 22 extends at least one connecting portion 14.

Since a bent portion 12 is disposed between the base portion 13 and the insert body 11, the bent portion 12 is adjacent to the functional surface 210 to produce a tapered point as described in the prior art, in order to avoid the taper when the glue is injected. At the point of the extrusion of the insert 10, the present invention extends at least a portion of the difference 15 perpendicularly to the functional surface 210 on the surface of the base portion 13, so that the top surface of the step portion 15 is exposed on the functional surface 210, thereby forming a surface contact of the glue body 20. When the injection molding is performed, the surface of the step portion 15 abuts against the mold so that the side edge of the step portion 15 is perpendicular to the surface of the mold, so that the injection flow to the bent portion 12 is guided through the surface of the base portion 13 and along the horizontal direction of the functional surface 210. It flows into the periphery of the step portion 15 and contacts the wall surface of the vertical step portion 15. Since the wall surface is perpendicular to the flow direction, it is difficult to cause the glue injection to be guided to the base portion 13, so that the step portion 15 can effectively prevent the technical difficulty caused by the tapered cusp.

The step portion 15 does not affect the design of the surface contact. In other embodiments, the top surface of the step portion 15 may have a rectangular shape, an elliptical shape (as shown in the sixth figure), a long ellipse, and the like. In other embodiments, the convex structure of the step portion 15 may be selected to be linearly extended from the surface of the base portion 13 to the functional surface 210 at an angle of between 80 and 100 degrees, and as shown in the eighth figure, the segment is inserted. The surface exposed on the functional surface 210 may be higher, parallel or lower than the functional surface 210.

Referring to FIG. 9 , the shielding housing 30 is a hollow housing composed of two opposite bottom walls 31 and two opposite side walls 32 opposite to the bottom wall 31 , so that the shielding housing 30 is formed for installation. An opening 33, wherein the two bottom walls 31 are oppositely formed with a penetrating rectangular opening 310. The bottom wall 31 extends from the bottom wall 31 in a vertical direction at a side edge adjacent to the opening 33, and extends outward in a horizontal direction toward the bottom wall 31. The L-shaped fixing piece 311 defines a rectangular fastening hole 312 in a plane extending horizontally from the bottom wall 31. A pair of rectangular interference holes 320 are oppositely disposed on the two side walls 32, and the two side walls 32 are selected to be rearward at the opening 33. A zigzag grounding piece 321 is extended.

When the shielding shell 30 is installed, the opening 33 is inserted into the function portion 21, and the fastening hole 312 of the fixing piece 311 is inserted into the buckle 221 of the mounting portion 22, so that the interference hole 320 is disposed on the side of the glue body 20 and the buckle. The slots 211 are overlapped to provide a structural engagement (not shown) of the docking connector using a latching trigger, and the grounding strip 321 extends out of the connecting surface, wherein the top surface of the stepped portion 15 is exposed in the opening 310.

Referring to the second figure, a plurality of metal contacts 41 are disposed on the circuit board 40, and are coupled to the connecting portion 14 and the grounding plate 321 .

Referring to the second figure, the covering case 50 is a grip portion for forming a connector, which is substantially rectangular, and covers the circuit board 40, the mounting portion 22, the fixing piece 311, and the opening 33 of the shielding case 30. In the end edge, the covering shell 50 is formed by inserting a semi-finished product of the electrical connector 1 into a mold and molding the covering portion.

In the embodiment, the middle portion of the electrical connector 1 is horizontally contracted by the upper surface and the lower surface from the front end edge to the step portion 15 by a horizontal distance, and the front end of the glue body 20 is retracted and matched with the front end of the shielding shell 30. Corresponding to the indentation, the height of the front end of the shielding shell 30 is flat and the same as the functional surface of the glue body 20, so that when the mating terminal is inserted into the functional surface, the mating terminal is not shielded from the shielding shell when being inserted into the mating connector. 30 blocking of the thickness of the bottom wall 31 (not shown).

As described above, by the step portion 15 of the electrical connector 1, the occurrence of burrs can be prevented, and the ease of molding can be reduced by dividing the squeegee 20 into two. The surface of the step portion 15 of the electrical connector 1 in this embodiment It is used as an external contact of the electrical connector 1 for electrically connecting with the mating connector, and transmitting a signal to the circuit board 40, and the electrical connector 1 is symmetrically arranged along the entire horizontal plane, so that the electrical connector 1 can be inserted into the docking connector in both directions.

The above description is only a preferred and feasible embodiment of the present invention, and thus does not limit the scope of the patent of the present invention. Therefore, the equivalent structural changes that are made by using the present specification and the illustrated contents are all included in the present creation. Within the scope, it is combined with Chen Ming.

1‧‧‧Electrical connector

10‧‧‧Inlays

14‧‧‧Connecting Department

20‧‧‧Injection

30‧‧‧Shaded housing

321‧‧‧ Grounding piece

40‧‧‧ boards

41‧‧‧Metal joints

50‧‧‧Covered casing

Claims (1)

An electrical connector comprising:

a glue body having at least one functional surface;

The at least one insert has an insert body disposed in the glue injection body, and the insert body is bent away from the functional surface of the glue injection body to extend at least one bent portion, and the bent portion then extends to a base portion in a substantially parallel direction of the functional surface, wherein The bent portion and the base portion are also disposed in the glue injection body, and the surface of the base portion extends perpendicularly to the functional surface at least a difference portion, and the top surface of the step portion is exposed on the functional surface.

2. The electrical connector of claim 1, wherein the injection body is a horizontally symmetrical structure, comprising a functional portion, the upper surface and the lower surface being functional surfaces, and the side edges are extended a mounting portion, the mounting portion is disposed as a connecting surface on a surface connected with respect to the functional portion, and the injection body is divided into an upper colloid and a lower colloid along the symmetrical horizontal plane, and a pair of concave surfaces are disposed on the opposite surfaces of the upper colloid and the lower colloid. The holes and the bumps cooperate with each other.

3. The electrical connector of claim 2, wherein the electrical connector further comprises:

a shielding shell forming a mounting opening for covering the functional portion of the gel; and

a circuit board disposed vertically on the connection surface;

A covering case covers the circuit board, the mounting portion, and the open end of the shielding case.

4. The electrical connector of claim 3, wherein the shielding housing is composed of two opposite bottom walls and two opposite side walls that are opposite to the bottom wall, wherein the two bottom walls are oppositely formed. a penetrating rectangular opening, the bottom wall extending from the bottom wall in a vertical direction at a side edge near the opening, and extending outward in a horizontal direction toward the bottom wall to form an L-shaped fixing piece, wherein a plane extending horizontally from the bottom wall A rectangular buttonhole is formed, and the two side walls are selected to extend rearwardly from the opening to form a zigzag grounding piece.

5. The electrical connector of claim 4, wherein the upper surface and the lower surface of the mounting portion are respectively provided with a reverse buckle, and the fastening hole of the fixing piece is sleeved on the buckle of the mounting portion.

6. The electrical connector according to claim 5, wherein the front end of the injection body is retracted correspondingly to the front end of the shielding shell, so that the height of the front end of the shielding shell is flat with the functional surface of the injection molding body. high.

7. The electrical connector of claim 1, wherein the step of extending the step directly extends at an angle of 80 to 100 degrees from the functional surface.

8. The electrical connector of claim 1, wherein the bent portion is substantially zigzag.