CN214900810U - L-shaped metal pin structure of network filter shell - Google Patents

Abstract

The utility model discloses a network filter shell L type metal pin structure relates to network filter technical field, to current enameled wire landing and the unable effectual control of soldering tin technology quality on the pin terminal easily, lead to the unstable problem of product quality, the following scheme is put forward now, and it includes the bottom surface, the both ends of bottom surface are provided with the side, the bottom of bottom surface is provided with openly, the inner wall of side is provided with second pin terminal, second pin terminal evenly sets up along the length direction of bottom surface, second pin terminal is the symmetry with the axis of side and sets up, the inner wall of side is provided with the reason wire casing, reason wire casing and second pin terminal phase-match, the lateral wall of second pin terminal is provided with the hanging wire groove. Utility model structure is novel, and the device can prevent effectively that the rosin joint from producing, ensures that electric conductivity is good, promotes product security performance, and it is high to wind enameled wire production efficiency simultaneously, and the steady quality facilitates the use.

Description

L-shaped metal pin structure of network filter shell

Technical Field

The utility model relates to a network filter technical field especially relates to a network filter shell L type metal pin structure.

Background

The electronic network filter shell is used for protecting and containing electrons in the inner cavity of the shell, an electrical component in the inner cavity of the shell is connected with a PCB (printed circuit board) through pin terminals outside two sides of the shell, the shell structure of the existing network filter with the L-shaped metal pin terminals comprises a shell and L-shaped pin terminals symmetrically arranged on two sides, and a wire hanging groove is not formed in each L-shaped pin terminal, so that an enameled wire is easy to slide down on each pin terminal in the process of winding the enameled wire by a client, and the position where the enameled wire is fixed cannot be accurately positioned.

In the process of producing the shell, firstly, plating nickel and tin on a pin terminal, then, cutting off an outer connecting rod connected with the pin terminal to form a single network filter shell, wherein the cross section of the pin terminal is exposed out of the cross section of the original metal material after the outer connecting rod is cut off, and a nickel-tin layer is not arranged on the cross section, so that the pin terminal of the network filter is required to be subjected to a tin soldering process during subsequent use by a client, and because the product is transported to the client and is not put into the tin soldering process urgently, the cross section of the pin terminal of the network filter is easy to cause the generation of an oxide layer, the cross section of the pin terminal of the network filter is easy to generate false soldering in the tin soldering process of the client, new tin cannot be soldered, the quality of the tin soldering process of the shell of the network filter to the client cannot be effectively controlled, and the product quality is unstable, the repair rate is high, and therefore, in order to solve the problems, an L-shaped metal pin structure of a network filter shell is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a network filter shell L type metal pin structure has solved the enameled wire landing and the unable effectual control of soldering tin technology quality on the pin terminal easily, leads to the unstable problem of product quality.

In order to realize the purpose, the utility model adopts the following technical scheme:

the utility model provides a network filter shell L type metal pin structure, includes the bottom surface, the both ends of bottom surface are provided with the side, the bottom of bottom surface is provided with openly, the both sides inner wall of stating the bottom surface is provided with second pin terminal, second pin terminal evenly sets up along the length direction of bottom surface, second pin terminal is the symmetry setting with the axis of bottom surface, the inner wall of side is provided with the reason wire casing, reason wire casing and second pin terminal phase-match, the lateral wall of second pin terminal is provided with hangs the wire casing, one side of second pin terminal is provided with the stationary plane.

Preferably, the bottom surface and the front surface are matte surfaces, the side surfaces are bright surfaces, first pin recognition marks are arranged at corresponding positions on the front surface and the bottom surface, and the depth of each first pin recognition mark is 0.1-0.2 mm.

Preferably, one end of the second pin terminal, which is far away from the side surface, is provided with a cross section, and one side of the second pin terminal, which is close to the side surface, is provided with a tin-climbing inclined plane area.

Preferably, the second pin terminal is integrally formed by punching a material plate, the material plate comprises a first connecting rod, a positioning hole, a fixing trimming block and a trimming block, and the side wall of the material plate is provided with a pin shape and a precutting groove.

Preferably, one end of the second pin terminal is provided with a first pin terminal, a cutting area is arranged between the first pin terminal and the second pin terminal, one end of the second pin terminal, which is far away from the first pin terminal, is provided with a flange, and one side, which is far away from the first connecting rod, of the front surface is provided with a second connecting rod.

The beneficial effects of utility model do:

1. the L-shaped metal pin terminal fixing surface of the shell of the network filter is provided with a wedge-shaped inclined surface structure, a first connecting rod and a second connecting rod are cut off after the whole piece of the L-shaped metal pin terminal is electroplated, the cutting position is cut off on a cutting area, the copper exposing area of the pin terminal in a transverse cutting mode is greatly reduced, the pin terminal is cut off after being electroplated, the synchronous cutting and synchronous extrusion of the transverse section in the cutting process are reduced through a die cutting gap, and a part of electroplated layers are attached to the cutting surface, so that the product weldability requirement and the oxidation resistance are improved through the two processing methods, the front ends of the pin terminals on two sides of the shell of the network filter are provided with wedge-shaped inclined surfaces, the wedge-shaped inclined surface design effectively improves that the fixing surface is connected with a PCB more firmly when a client side welds the PCB, the welding of the shell welding foot part and the PCB is easy to tin soldering, and tin climbing along the inclined surfaces of the wedge-shaped structures to wrap the welding end is facilitated, prevent the rosin joint and produce, ensure that electric conductivity is good, promote product security performance.

2. The network filter shell is provided with the wire arranging groove, so that the enameled wire can be wound to the terminal pin wire hanging groove in the same direction and fixed, the wire winding efficiency is high, the wire arranging groove is favorable for isolating the enameled wire from the enameled wire on the previous pin, and the short circuit is prevented.

To sum up, the device can effectively prevent the rosin joint and produce, ensures that electric conductivity is good, promotes product security performance, and it is high to wind enameled wire production efficiency simultaneously, and the steady quality facilitates the use.

Drawings

Fig. 1 is a schematic view of the steps of the terminal manufacturing process of the utility model.

Fig. 2 is a schematic structural view of the terminal of the present invention.

Fig. 3 is an enlarged schematic view of a portion a in fig. 2 according to the present invention.

Fig. 4 is a schematic structural view of injection molding of the utility model.

Fig. 5 is an enlarged view of B in fig. 4 of the present invention.

Fig. 6 is a front view of the structure of the injection molding of the utility model.

Fig. 7 is a side view of the structure of the injection molding of the present invention.

Fig. 8 is a schematic structural view of the utility model housing.

Fig. 9 is a schematic view of the bottom structure of the utility model housing.

Fig. 10 is a side view of the utility model housing.

Reference numbers in the figures: 1. a first connecting rod; 2. positioning holes; 3. a first pin terminal; 4. hanging a wire groove; 5. a second pin terminal; 7. a flange; 8. trimming blocks; 9. pre-cutting grooves; 10. fixing and trimming; 11. a pin shape; 12. a second connecting rod; 13. cutting the area; 14. a fixed surface; 15. a bottom surface; 16. arranging wire grooves; 17. a tin climbing slope area; 18. a first footprint identification token; 19. a side surface; 20. a front side; 21. cutting into a cross section; 22. a sheet of material.

Detailed Description

In order to make the technical means, creation features, achievement purposes and effects of the utility model easy to understand, the utility model is further explained by combining with the detailed implementation mode.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "disposed" are to be interpreted broadly, and may be, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed; the model of the electrical equipment provided in the utility model is only used for reference. For those skilled in the art, different types of electrical appliances with the same function can be replaced according to actual use conditions, and for those skilled in the art, the specific meaning of the above terms in the utility model can be understood in specific situations.

Referring to fig. 1-10, an L-shaped metal pin structure of a network filter housing comprises a bottom surface 15, side surfaces 19 are arranged at two ends of the bottom surface 15, a front surface 20 is arranged at the bottom end of the bottom surface 15, second pin terminals 5 are arranged on inner walls of two sides of the bottom surface 15, the second pin terminals 5 are uniformly arranged along the length direction of the bottom surface 19, the second pin terminals 5 are symmetrically arranged around the central axis of the bottom surface 15, a wire arranging groove 16 is arranged on the inner wall of the side surface 19, the wire arranging groove 16 is matched with the second pin terminals 5, a wire hanging groove 4 is arranged on the side wall of the second pin terminal 5, a fixing surface 14 is arranged on one side of each second pin terminal 5, the bottom surface 15 and the front surface 20 are fog surfaces, the side surface 19 is a bright surface, first pin identification marks 18 are arranged on corresponding positions of the front surface 20 and the bottom surface 15, and the depth of the first pin identification marks 18 is about 0.1mm-0.2mm, the end, far away from the side face 19, of the second pin terminal 5 is provided with a cross section 21, one side, close to the side face 19, of the second pin terminal 5 is provided with a tin climbing inclined plane area 17, the second pin terminal 5 is integrally formed by punching a material plate 22, the material plate 22 comprises a first connecting rod 1, a positioning hole 2, a fixing trimming edge 10 and a trimming edge block 8, the side wall of the material plate 22 is provided with a pin shape 11 and a precutting groove 9, one end of the second pin terminal 5 is provided with a first pin terminal 3, a cutting area 13 is arranged between the first pin terminal 3 and the second pin terminal 5, one end, far away from the first pin terminal 3, of the second pin terminal 5 is provided with a flange 7, and one side, far away from the first connecting rod 1, of the front face 20 is provided with a second connecting rod 12.

A production process of an L-shaped metal pin structure of a network filter shell comprises the following steps:

s1: a step of putting the material plate 22 into a continuous stamping die to perform stamping and integral bending molding, wherein firstly, a positioning hole 2 is stamped on one side of the material plate 22, and positioning is performed between the positioning hole 2 and the die, so that accurate stamping and blanking are performed;

then, stamping a precut groove 9 on the material plate 22 on one side of the positioning hole 2;

the precutting groove 9 is bent to form a subsequent cutting area 13, the outer connecting rod is cut along the precutting groove 9, and a tin climbing inclined plane area 17 is formed to facilitate tin climbing;

then, fixing and trimming the side edges of the material plate 22 to ensure that the material width dimension precision meets the requirement;

then, stamping a pin shape 11 and an inner connecting rod along the precutting groove 9, cutting off the inner connecting rod 8 after a plurality of stamping vacant positions to form a terminal pin group, and stamping and trimming the terminal pin group;

then bending the terminal pin group by 90-95 degrees;

s2: injection molding: arranging the semi-finished products in pairwise symmetry, injection molding the symmetrically arranged semi-finished products to form a plurality of plastic shells, wherein each plastic shell is formed on a first bending part of two groups of terminal pin groups on the two symmetrically arranged semi-finished products, an outer terminal pin group and an inner terminal pin group are formed on the plastic shells, the outer terminal pin group is connected with an outer connecting rod, a flange 7 on the inner terminal pin group is embedded in a side surface 19, then the flange 7 on the inner terminal pin group and the side surface 19 are subjected to injection molding, and the flange 7 is beneficial to embedding the terminals in a colloid for positioning and preventing the vertical movement problem;

s3: baking: baking the injection molded finished product to release internal stress inside the finished product, wherein the baking condition is baking for 2-3 h at 135-145 ℃;

s4: burr treatment: then, performing rough edge treatment on the baked finished product; placing the baked semi-finished product into a track of a sand blasting machine, opening a conveying belt to adjust a sand blasting gun head, and aligning the rough edge part to be processed of the semi-finished product; opening an air pressure switch of the sand blasting gun head, and adjusting the air pressure to 35-50 KG; opening a sand sucker, opening a conveyer belt and each sand blasting air pressure, and performing sand blasting to remove burrs;

s5: electroplating: plating a metal protective layer on the surface of the molded pin in an electroplating mode;

s6: cutting a connecting rod: cutting the first pin terminal 3 and the second pin terminal 5 through the cutting area 13, thereby removing the first connecting rod 1 and the second connecting rod 12, forming a plurality of network filter shells, and then synchronously packaging plastic pipes;

s7: and (5) preparing a finished product.

The basic principles and essential features of the invention and advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but is capable of other embodiments without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1. The utility model provides a network filter shell L type metal pin structure, includes bottom surface (15), its characterized in that, the both ends of bottom surface (15) are provided with side (19), the bottom of bottom surface (15) is provided with openly (20), the both sides inner wall of bottom surface (15) is provided with second pin terminal (5), second pin terminal (5) are evenly set up along the length direction of bottom surface (15), second pin terminal (5) are the symmetry with the axis of bottom surface (15) and set up, the inner wall of side (19) is provided with reason wire casing (16), reason wire casing (16) and second pin terminal (5) phase-match, the lateral wall of second pin terminal (5) is provided with hanging wire casing (4), one side of second pin terminal (5) is provided with stationary plane (14).

2. The L-shaped metal pin structure of the network filter shell according to claim 1, wherein the bottom surface (15) and the front surface (20) are matte surfaces, the side surface (19) is a bright surface, the front surface (20) and the bottom surface (15) are provided with first pin identification marks (18) at corresponding positions, and the depth of each first pin identification mark (18) is 0.1mm-0.2 mm.

3. The L-shaped metal pin structure of the network filter housing as claimed in claim 1, wherein the end of the second pin terminal (5) far from the side surface (19) is provided with a cross section (21), and the side of the second pin terminal (5) near the side surface (19) is provided with a tin-climbing slope area (17).

4. The L-shaped metal pin structure of the network filter shell is characterized in that the second pin terminal (5) is integrally formed by punching a material plate (22), the material plate (22) comprises a first connecting rod (1), a positioning hole (2), a fixing trimming edge (10) and a trimming block (8), and the side wall of the material plate (22) is provided with a pin shape (11) and a pre-cutting groove (9).

5. The L-shaped metal pin structure of the network filter shell is characterized in that one end of the second pin terminal (5) is provided with a first pin terminal (3), a cut area (13) is arranged between the first pin terminal (3) and the second pin terminal (5), one end of the second pin terminal (5) far away from the first pin terminal (3) is provided with a flange (7), and one side of the front surface (20) far away from the first connecting rod (1) is provided with a second connecting rod (12).

Images