CN217881981U

CN217881981U - Pin terminal structure

Info

Publication number: CN217881981U
Application number: CN202221801784.4U
Authority: CN
Inventors: 陈中元; 陈兵斌
Original assignee: Dongguan Fuhang Electronic Technology Co ltd
Current assignee: Dongguan Fuhang Electronic Technology Co ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-11-22
Anticipated expiration: 2032-07-12

Abstract

The present disclosure relates to a pin terminal structure, including: an outer connecting plate in the shape of a long plate; the inner connecting plate is in a long plate shape and extends in the same direction as the outer connecting plate; the pins are arranged along the length direction of the external connecting plate; one end of each pin is connected with the outer connecting plate, and the other end of each pin is connected with the inner connecting plate; one section of the pin close to the external connecting plate is an external pin part, and one section of the pin close to the internal connecting plate is an internal pin part; the connecting position of the inner lead part and the inner connecting plate is provided with a pre-folding groove which is sunken towards the inner side. This accessible interconnection board connection protection inner pin portion prevents that crooked deformation phenomenon from appearing in the inner pin portion, can ensure simultaneously that each inner pin portion is in same height, is favorable to going on of follow-up injection moulding process, simultaneously through setting up the groove of rolling over in advance, the separation of interconnection board and pin of can being convenient for.

Description

Pin terminal structure

Technical Field

The present disclosure relates to the field of electronic device technologies, and in particular, to a pin terminal structure.

Background

The pins mainly serve for electrical connection, and in electronic components such as network filters, a plurality of pins are arranged on two sides of the shell, the inner pin part extends into the shell to be connected with internal circuit components, and the outer pin part extends out of the shell to be connected with external equipment.

In the production process, the pin terminal comprises a connecting plate and a plurality of pins, the pins are arranged, and the tail ends of the outer pin parts are connected with the connecting plate, so that the pin terminal can be conveniently processed and subjected to the subsequent injection molding packaging process. In current pin terminal structure, because the end that only outer pin portion is connected with even board, inner pin portion does not carry out effective fixed, at the punching press of pin terminal, in-process such as packing and transportation, the phenomenon such as crooked, deformation appears in inner pin portion very easily receiving the exogenic action, this can influence follow-up injection moulding process's production efficiency, leads to the defective rate to increase, and manufacturing cost improves.

On the other hand, in the injection molding process of the pin terminal structure, the inner lead parts cannot be kept at the same height, and height difference occurs between the inner lead parts, which also affects the injection molding process and the subsequent product quality.

And because the length of inner pin portion is shorter, its position of outstanding gluey position face is less, and it is limited to seal the straight position of glue effectively for the mould is difficult to effective management and control, and very easily appears running deckle edge phenomenon in inner pin position.

In addition, in the existing pin terminal structure, after the pin terminal is wrapped by injection molding, partial pin terminals have the phenomena of infirm injection molding and easy looseness of inner pins, and the performance of an electronic element product is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the present disclosure aims to provide a pin terminal structure. This accessible interconnection board connection protection inner pin portion prevents that crooked deformation phenomenon from appearing in the inner pin portion, can ensure simultaneously that each inner pin portion is in same height, is favorable to going on of follow-up injection moulding process, simultaneously through setting up the groove of rolling over in advance, the separation of interconnection board and pin of can being convenient for.

The present disclosure relates to a pin terminal structure, including:

an outer connecting plate in the shape of a long plate;

the inner connecting plate is in a long plate shape and extends in the same direction as the outer connecting plate;

the pins are arranged along the length direction of the external connecting plate; one end of each pin is connected with the outer connecting plate, and the other end of each pin is connected with the inner connecting plate; one section of the pin close to the external connecting plate is an external pin part, and the other section of the pin close to the internal connecting plate is an internal pin part; and a pre-folding groove which is sunken towards the inner side is formed at the connecting position of the inner lead part and the inner connecting plate.

Preferably, a plurality of connecting pins are formed on one side edge of the inner connecting plate close to the inner lead part, the number of the connecting pins is matched with that of the pins and corresponds to the pins one by one, the connecting pins extend along the width direction of the inner connecting plate, and the tail ends of the connecting pins are connected with one ends of the inner lead part far away from the outer lead part.

Preferably, the pre-folding groove includes a V-shaped groove formed on both side surfaces in the thickness direction of the position where the connection pin is connected to the inner pin portion.

Preferably, the pre-folding groove further comprises a U-shaped groove formed on both sides of the connecting leg in the width direction at the connecting position with the inner leg part, and the U-shaped groove extends to communicate with the V-shaped groove.

Preferably, the connecting pin and the inner pin part are in a quadrangular prism shape, and the connecting pin and the inner pin part have the same width.

Preferably, a reinforcing groove which is recessed inwards is formed on two opposite side surfaces of one part of the inner lead part, and the reinforcing groove is an arc-shaped groove.

Preferably, the lead further includes a bent portion located between the outer lead portion and the inner lead portion, and the bent portion extends obliquely to the length direction of the outer connecting plate, so that the outer lead portion and the inner lead portion are misaligned in the width direction of the outer connecting plate.

Preferably, one end of the outer pin part connected with the outer connecting plate is formed with a wedge-shaped inclined surface.

Preferably, a plurality of positioning holes are formed in the outer connecting plate and arranged in a row along the length direction of the outer connecting plate.

The utility model discloses a pin terminal structure, its advantage lies in:

1. according to the inner connecting plate, the inner pin parts of the plurality of pins are connected into a whole through the inner connecting plate, so that a good deformation resistant effect can be achieved, the inner pin parts can be effectively protected, the inner pin parts are prevented from being skewed, deformed and the like under the action of external force in the processes of stamping, packaging, transportation and the like, the uniform and stable shape of the inner pin parts is ensured, and the subsequent injection molding process is facilitated; the inner connecting plate is arranged, so that the inner pin parts of the pins can be positioned during injection molding, the heights of the inner pin parts are kept consistent, and the problem that the heights of the inner pin parts in the conventional pin terminal structure are different is solved;

2. the pre-folding groove is arranged at the connecting position of the inner lead part and the inner connecting plate, the connecting area of the inner lead part and the inner connecting plate can be properly reduced by the pre-folding groove, so that the pre-folding groove is easy to break when being subjected to larger external force, the inner connecting plate can be conveniently separated from the lead, and the deformation of the inner lead part caused by larger force application in the separation process is avoided.

Drawings

Fig. 1 is a schematic structural diagram of a pin terminal structure according to the present disclosure;

FIG. 2 is a schematic view of the structure at position A in FIG. 1;

FIG. 3 is a schematic view of the structure at position B in FIG. 1;

FIG. 4 is a schematic structural view of an injection molded housing of a pin terminal structure according to the present disclosure;

fig. 5 is a schematic view of the structure of the product of fig. 4 after separation of the interconnector plates from the interconnector plates.

Description of reference numerals: 1-external connecting plate, 11-positioning hole, 2-internal connecting plate, 21-connecting pin, 3-pin, 31-external pin part, 311-wedge-shaped inclined plane, 32-internal pin part, 321-reinforcing groove, 33-bending part, 4-pre-bending groove, 41-V-shaped groove, 42-U-shaped groove and 5-shell.

Detailed Description

As shown in fig. 1-3, a pin terminal structure according to the present disclosure includes:

the outer connecting plate 1 is in a square long plate shape.

The inner connecting plate 2 is a square long plate shape matched with the shape and size of the outer connecting plate 1, and extends in the same direction with the outer connecting plate 1, namely the length direction of the inner connecting plate 2 is parallel to the length direction of the outer connecting plate 1. The plate surface of the inner connecting plate 2 is vertical to the plate surface of the outer connecting plate 1.

A plurality of pins 3, a plurality of pins 3 arrange along the length direction of outer even board 1 and set up between outer even board 1 and interior board 2, and the border of outer even board 1 is connected to pin 3 one end, and the border of interior even board 2 is connected to the other end, and interior even board 2 is connected the interior pin portion 32 one end of a plurality of pins 3 and is monolithic structure to improve the resistance to deformation ability of each interior pin portion 32.

As shown in fig. 4 and 5, the lead 3 is divided into an outer lead portion 31 and an inner lead portion 32 according to the relative position with the injection-molded housing 5, a section of the lead 3 near the outer connecting plate 1 is the outer lead portion 31, and a section near the inner connecting plate 2 is the inner lead portion 32. The side view direction of the pin 3 is L-shaped, and the inner pin part 32 and the outer pin part 31 are perpendicular to each other to meet the injection molding requirement.

A pre-folding groove 4 depressed inward is formed at the connecting position of the inner pin part 32 and the interconnector plate 2.

According to the injection molding machine, the inner connecting plate 2 is arranged, the inner pin parts 32 of the pins 3 are connected into a whole, so that a good deformation resistant effect can be achieved, the inner pin parts 32 can be effectively protected, the phenomena of deflection, deformation and the like caused by external force when the inner pin parts 32 are subjected to the action of external force in the processes of stamping, packaging, transportation and the like can be prevented, the uniform and stable shape of the inner pin parts 32 can be ensured, and the injection molding machine is beneficial to the implementation of a subsequent injection molding process; by arranging the inner connecting plate 2, the inner connecting plate 2 can be used for positioning during injection molding, so that the heights of the inner pin parts 32 of the pins 3 are kept consistent, and the problem that the heights of the inner pin parts 32 in the conventional pin terminal structure are different is solved;

according to the inner connecting plate, the pre-folding groove 4 is formed in the connecting position of the inner pin part 32 and the inner connecting plate 2, the connecting area of the inner pin part 32 and the inner connecting plate 2 can be properly reduced through the pre-folding groove 4, the pre-folding groove 4 is easy to break when being subjected to large external force, the inner connecting plate 2 and the pin 3 can be conveniently separated, and deformation of the inner pin part 32 caused by large force application in the separation process is avoided.

Further, in this embodiment, a plurality of connecting pins 21 are formed on one side edge of the interconnection board 2 close to the inner lead portion 32, the number of the connecting pins 21 matches and corresponds to the number of the pins 3 one by one, the connecting pins 21 extend along the width direction of the interconnection board 2, that is, the extending direction of the connecting pins 21 is perpendicular to the length direction of the interconnection board 2, the tail end of the connecting pins 21 extends to be connected with one end of the inner lead portion 32 far away from the outer lead portion 31, that is, the tail end of the connecting pins 21 is the position connected with the inner lead portion 32. Connect foot 21 can increase the interval between interior link board 2 and the inner lead portion 32, keep away the position when can being convenient for mould plastics, avoid interior link board 2 to cause the interference to the process of moulding plastics, connect foot 21 simultaneously and also can strengthen interior link board 2 and a plurality of inner lead portion 32 and be connected the overall structure's that forms intensity, and then improve inner lead portion 32's anti deformability, ensure that inner lead portion 32 non-deformable.

Further, in the present embodiment, referring to fig. 2 in detail, the pre-bending groove 4 includes V-shaped grooves 41, the V-shaped grooves 41 are formed on two side surfaces in the thickness direction of the connection position between the connection pin 21 and the inner pin portion 32, that is, on the front and rear side surfaces of the connection position, and the two V-shaped grooves 41 are in a symmetrical structure.

The structure of the V-shaped groove 41 can break the connection position by applying a certain force to the interconnector plate 2 when the interconnector plate 2 and the pins 3 need to be separated after the injection molding process is completed, and can improve the breaking and separating efficiency of the interconnector plate 2, more importantly, because of the characteristic that the pre-folding groove 4 is easily broken by a force, the inner interconnector plate 2 does not need to be broken by a large force, and the positions of the V-shaped groove 41 on the front and rear side surfaces correspond to the force application direction of the outward force application when the interconnector plate 2 is broken, so that the deformation of the inner pin 32 caused by a large force application in the separating process can be avoided, and the shape and the posture of the inner pin 32 are always kept stable. Meanwhile, the V-shaped groove structure also has the advantage of easy processing.

Further, in the present embodiment, please refer to fig. 2, the pre-bending groove 4 further includes a U-shaped groove 42, the U-shaped groove 42 is formed on two sides of the connecting position of the connecting pin 21 and the inner pin portion 32 in the width direction, that is, on the left and right sides of the connecting position, and the U-shaped groove 42 extends to communicate with the V-shaped groove. The end in U-shaped groove 42 is the circular arc structure, and then makes the interior even board 2 of rupture after, the end of interior pin portion 32 is circular arc transition structure, and this kind of structure is in order to avoid forming sharp-pointed edge structure at the end of interior pin portion 32, and then avoids winding enameled wire in-process enameled wire to hang and causes the enameled wire fracture in sharp-pointed edge structure department, and subsequent winding enameled wire technology can be convenient for to the circular arc structure.

Furthermore, in the embodiment, the connecting pins 21 and the inner lead parts 32 are all in a quadrangular prism shape, and the widths of the connecting pins 21 and the inner lead parts 32 are equal to form an equal-width structure, so that the injection molding process has sufficient sealing length, the effective straight body position can be designed in an injection mold for sealing, the problem that burrs are easily run at the inner lead positions in the injection molding process is effectively solved, and the improvement of the product quality is facilitated.

Further, in the embodiment, please continue to refer to fig. 2, a reinforcing groove 321 is formed in an inward concave manner on two opposite side surfaces of the inner lead portion 32, the reinforcing groove 321 is an arc groove, in the injection molding process, the injection molding glue flows into the reinforcing groove 321, and is tightly attached to the reinforcing groove 321 after being cured and formed, the reinforcing groove 321 can increase the connection area between the injection-molded shell 5 and the inner lead portion 32, so as to reinforce the connection between the shell 5 and the inner lead portion 32, effectively solve the problem that the inner lead is easy to loosen, and improve the performance of the electronic component product.

Further, in this embodiment, the leads 3 further include a bending portion 33 located between the outer lead portion 31 and the inner lead portion 32, the bending portion 33 is inclined to extend in the length direction of the outer connecting plate 1, so that the outer lead portion 31 and the inner lead portion 32 are dislocated in the width direction of the outer connecting plate 1, specifically, the bending angles of two symmetrical leads 3 located in the length direction of the outer connecting plate 1 are equal, but the bending directions are opposite, so that the adjacent leads 3 are separated from each other, and the arrangement of the leads 3 is compact.

Further, in this embodiment, the one end that outer pin portion 31 and outer even board 1 are connected, the end of outer pin portion 31 is formed with wedge inclined plane 311 promptly, and wedge inclined plane 311 is for current section structure, changes when the tin-plating and climbs the tin, and soldering tin can wrap up the end of outer pin portion 31 along wedge inclined plane 311 for the outer pin portion 31 is connected more firmly with the PCB board, is favorable to promoting product property ability.

Furthermore, in this embodiment, a plurality of positioning holes 11 arranged along the length direction and penetrating along the thickness direction are formed on the surface of the external connection plate 1, and the positioning holes 11 are used for positioning the position of the terminal structure in the injection molding process, so as to efficiently perform the injection molding process.

In the description of the present disclosure, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience in describing and simplifying the present disclosure, and in the absence of a contrary explanation, these directional terms are not intended to indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present disclosure.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims of the present disclosure.

Claims

1. A pin termination structure, comprising:

an outer connecting plate in a long plate shape;

the pins are arranged along the length direction of the external connecting plate; one end of each pin is connected with the outer connecting plate, and the other end of each pin is connected with the inner connecting plate; one section of the pin close to the external connecting plate is an external pin part, and one section of the pin close to the internal connecting plate is an internal pin part; the connecting position of the inner lead part and the inner connecting plate is provided with a pre-folding groove which is sunken towards the inner side.

2. The pin terminal structure according to claim 1, wherein a plurality of connection pins are formed on a side edge of the interconnection board close to the inner lead part, the number of the connection pins matches and corresponds to the number of the pins one to one, the connection pins extend in a width direction of the interconnection board, and a distal end of the connection pin is connected to an end of the inner lead part away from the outer lead part.

3. The pin terminal structure according to claim 2, wherein the pre-folding groove comprises a V-shaped groove formed on both sides in a thickness direction of a position where the connection pin is connected to the inner lead part.

4. The pin header structure according to claim 3, wherein the pre-folding groove further comprises a U-shaped groove formed on both sides in a width direction of a position where the connection pin is connected to the inner lead part, and the U-shaped groove extends to communicate with the V-shaped groove.

5. The pin termination structure of claim 2, wherein the connection pin and the inner lead part are each in the shape of a quadrangular prism, and the connection pin and the inner lead part have the same width.

6. The pin header structure of claim 1, wherein a reinforcing groove is formed on one of the opposite side surfaces of the inner lead portion and is recessed inward, and the reinforcing groove is a circular arc groove.

7. The pin terminal structure according to claim 1, wherein the pin further comprises a bent portion located between the outer lead portion and the inner lead portion, the bent portion extending obliquely to a length direction of the outer interconnection plate so that the outer lead portion and the inner lead portion are misaligned in a width direction of the outer interconnection plate.

8. The pin terminal structure according to claim 1, wherein an end of the outer lead portion connected to the external connection plate is formed with a wedge-shaped slope.

9. The pin header structure of claim 1, wherein the external connection plate has a plurality of positioning holes formed therein and arranged along a length direction thereof.