阅读说明：本技术 一种网络滤波器结构及其生产工艺 (Network filter structure and production process thereof ) 是由 陈中元 于 2021-09-27 设计创作，主要内容包括：本发明公开了一种PIN针料带,包括一料带、及形成于该料带一侧面的至少一PIN针,所述PIN针远离料带的一端向上弯折形成一引线脚,PIN针与料带连接的一端具有一焊接脚,在所述引线脚上且远离焊接脚的一端下凹形成有一坎线槽,在该坎线槽的两个侧壁上且远离坎线槽的一侧分别向内凹陷形成具有锥形结构的一易折凹槽；该PIN针料带能将引线快速穿过并夹紧在引线脚上,大幅提高元件的生产效率；还公开一种网络滤波器,该网络滤波器具有较强的抗干扰性能,且组装方便,有效提高生产效率；所述PIN针料带采用冲压弯折工艺一体加工成型,并采用注塑工艺将PIN料带与底座结合成一体结构,加工工艺简单,产品精度高,结构稳固。(The invention discloses a PIN needle material belt, which comprises a material belt and at least one PIN needle formed on one side surface of the material belt, wherein one end, far away from the material belt, of the PIN needle is bent upwards to form a lead PIN, one end, connected with the material belt, of the PIN needle is provided with a welding PIN, one end, far away from the welding PIN, of the lead PIN is recessed downwards to form a ridge line groove, and one sides, far away from the ridge line groove, of the two side walls of the ridge line groove are recessed inwards to form an easy-to-break groove with a conical structure; the PIN needle material belt can enable a lead to rapidly penetrate through and be clamped on a lead PIN, and the production efficiency of elements is greatly improved; the network filter has strong anti-interference performance, is convenient to assemble, and effectively improves the production efficiency; the PIN needle material area adopts the punching press technology integrated processing shaping of buckling to adopt injection molding process to combine PIN material area and base structure as an organic whole, processing technology is simple, and the product precision is high, and the structure is firm.)

1. The utility model provides a PIN needle material area, includes a material area and forms at least a PIN needle in this material area a side, the one end that the material area was kept away from to the PIN needle upwards buckles and forms a PIN, and the one end that the PIN needle is connected with the material area has a welding foot, its characterized in that the PIN is last and keep away from the one end of welding foot and sunken being formed with a bank wire casing, and the one side of just keeping away from bank wire casing on two lateral walls of this bank wire casing inwards caves in respectively and forms an easy recess that has the toper structure.

2. The strip of PIN needles as defined in claim 1, wherein a breaking groove is formed on the upper surface of the PIN needles and between the solder legs and the strip, the breaking groove comprises a solder-climbing slope connected to the solder legs and a strip slope connected to the strip, and the lower ends of the solder-climbing slope and the strip slope intersect at the bottom of the breaking groove to form an inverted cone-shaped groove.

3. The PIN needle material tape according to claim 1, wherein the easy-to-break groove is near the lower end of the Kam line groove; and a terminal pin groove is formed on two opposite side surfaces of the terminal pin and below the easy-to-break groove respectively.

4. The PIN needle material belt of claim 1, wherein at least one winding hole is formed in the material belt, at least one lead-in through groove corresponding to the winding hole in a one-to-one manner is formed in the material belt and on one side close to the winding hole, an outer opening is formed in one end of the lead-in through groove on the side, far away from the PIN needle, of the material belt, and the other end of the lead-in through groove extends towards the inside of the material belt and is communicated with the winding hole; the wire inlet through groove is provided with opposite arc-shaped side walls from the outer opening to the winding hole, and the width of the wire inlet through groove is gradually reduced from the outer opening to the winding hole; the material belt is further provided with two positioning holes, and the winding hole, the feeding through groove and the PIN needle are formed between the two positioning holes.

5. An electronic component housing, comprising a base and the PIN strip of any one of claims 1 to 4, wherein the base is formed with at least one receiving groove, and the PIN strip is disposed on a sidewall of the receiving groove.

6. The electronic component casing according to claim 5, wherein an inner wall and an outer wall are respectively provided on two opposite side walls of the accommodating groove, the inner wall has a lower end surface flush with a lower end surface of the outer wall, and an upper end surface of the inner wall is higher than an upper end surface of the outer wall; the lead pins penetrate out of the base from the lower part of the base and between the inner wall and the outer wall upwards, and the lower end of the ridge wire groove is higher than the upper surface of the outer wall; the welding foot is in contact with the lower end face of the outer wall, and the material belt is positioned on the outer side of the outer wall; and at least one lead groove corresponding to the PIN needles one to one is formed on the upper end surface of the inner wall in a concave manner.

7. The electronic component casing according to claim 6, further comprising an upper cover disposed above the base, wherein the upper cover is disposed on the lower end surface of the upper cover and extends downward above the outer wall to form opposite protective cover plates, at least one recess corresponding to the terminal pins is formed on the inner side of the protective cover plate, two lower protrusions are symmetrically disposed at opposite ends of the upper cover and close to the protective cover plate, and a locking hole is formed on the lower protrusion; a positioning slot for the lower convex block to insert is formed on the base and below the lower convex block, and an outer convex clamping block matched with the clamping hole is formed on the positioning slot.

8. A network filter, characterized by: the electronic component housing comprises the electronic component housing according to any one of claims 5 to 7, and at least one magnetic core assembly, wherein the magnetic core assembly comprises a magnetic core and a coil wound around the periphery of the magnetic core, the coil is provided with a lead, the magnetic core assembly is arranged in the accommodating groove, the lead is clamped in the groove of the ridge, the lead is electrically connected with the soldering pin, the soldering pin is provided with a cutting surface at the position of the breaking groove, and the cutting surface comprises the tin-climbing inclined surface.

9. A process for producing a network filter according to claim 8, comprising the steps of:

s1, stamping, bending and forming a PIN needle material belt;

s2, injection molding: putting the PIN needle material belt molded in the step S1 into a mold, injecting glue solution into the mold, and cooling and molding to obtain a semi-finished product of the electronic element shell;

s3, baking: placing the semi-finished product of the electronic element shell after the injection molding in the step S2 into a baking oven, and baking for 2-3h at the temperature of 135-145 ℃;

s4, burr treatment: and removing the glue and burrs on the surface of the PIN needle on the baked semi-finished product of the electronic element shell.

S5, electroplating the PIN needle material belt: electroplating a layer of metal coating on the surface of the PIN needle material belt after burr treatment, wherein the metal coating comprises a metal nickel coating positioned on the outer surface of the PIN and a metal tin coating positioned on the outer surface of the nickel coating.

S6, preparing a magnetic core assembly: winding the enameled wire on the periphery of the magnetic core and reserving a lead to obtain a magnetic core assembly;

s7, necking down by punching a ridge line groove: placing the magnetic core assembly pieces in the accommodating groove in sequence, and enabling the lead to pass through the lead groove and the ridge groove in sequence; then, winding the lead at the winding hole; finally, oppositely pressing and clamping the upper ends of the two side walls of the ridge line groove;

s8, cutting a lead: cutting off the lead wire penetrating out of the threshold wire slot along the outer side of the lead pin so as to separate the lead wire penetrating out of the threshold wire slot from the element shell;

s9, cutting a material belt: cutting off the material belt along the breaking groove to separate the material belt from the shell of the electronic element to obtain a semi-finished product of the network filter;

s10, soldering tin for lead pins: soldering tin between the lead wire and the ridge wire groove of the semi-finished product of the network filter manufactured in the step S9 to fix the lead wire and the ridge wire groove and electrically conduct the lead wire and the ridge wire groove;

s11, welding foot soldering tin: soldering tin on the end part of the welding leg end part and the end part with the cut surface; namely, the network filter is manufactured;

and S12, assembling an upper cover, and covering the upper cover on the element shell to obtain the network filter.

10. The manufacturing process of the network filter according to claim 9, wherein the PIN strip stamping and bending forming in step S1 includes the following steps:

s1-1, trimming the material belt: taking a coiled metal material sheet and trimming the edge of the coiled metal material sheet;

s1-2, punching positioning holes: stamping at least one positioning hole group on the trimmed material belt, wherein the positioning group comprises two positioning holes;

s1-3, punching wire winding holes: punching at least one wire winding hole between two positioning holes of the positioning hole group;

s1-4, punching a ridge line groove;

s1-5, stamping and welding a pin;

s1-6, stamping a lead pin;

s1-7, stamping an easy-to-break groove;

s1-8, punching a wire inlet through groove;

s1-9, bending the terminal pin;

and S1-10, cutting off the edge materials of the material belt.

In the step S7, when the notch grooves are punched and reduced, a jig may be used to reduce the notch grooves simultaneously, and the punching surface of the jig is formed with punching grooves corresponding to the notch grooves one to one.

Technical Field

The invention relates to the technical field of electronic networks, in particular to a network filter structure and a production process thereof.

Background

The network filter is a frequency selection circuit, which allows signals with a part of frequencies to pass smoothly, and signals with the other part of frequencies to be suppressed, but the traditional network filter still has the defects in the using and production processes, and has the disadvantages of poor stability of the using performance, weak anti-interference performance, high production difficulty, large product size error in the production process, difficulty in mass production, low production efficiency and high production cost.

Disclosure of Invention

In view of the above disadvantages, the present invention provides a PIN needle material belt, which can rapidly pass and clamp a lead on a terminal PIN, thereby greatly improving the production efficiency of electronic components; meanwhile, the component shell is improved, so that the subsequent production and processing of the electronic component are facilitated, the processing size error of the product is small, the yield is high, the large-scale production is easy to realize, and the production efficiency is effectively improved; the network filter prepared by the element shell has stronger anti-interference performance and convenient assembly, improves the production efficiency of the network filter and reduces the production cost; the PIN needle material area adopts the punching press technology integrated processing shaping of buckling to adopt injection molding process to combine PIN material area and base structure as an organic whole, processing technology is simple, and the product precision is high, and the structure is firm.

The technical scheme adopted by the invention to achieve the aim is as follows: the utility model provides a PIN needle material area, includes a material area and forms at least a PIN needle in this material area a side, the one end that the material area was kept away from to the PIN needle upwards buckles and forms a PIN, and the one end that the PIN needle is connected with the material area has a welding foot the end that just keeps away from the welding foot on the PIN is recessed to be formed with a bank wire casing, and the one side of just keeping away from the bank wire casing on two lateral walls of this bank wire casing is inwards sunken respectively to form an easy recess that has the toper structure.

As a further improvement of the invention, a breaking groove is formed on the upper surface of the PIN needle and is recessed between the welding PIN and the material belt, the breaking groove comprises a tin climbing inclined plane connected with the welding PIN and a material belt inclined plane connected with the material belt, and the tin climbing inclined plane and the lower end of the material belt inclined plane are intersected at the bottom of the breaking groove to form an inverted cone-shaped groove.

As a further improvement of the invention, the easy-to-break groove is close to the lower end of the ridge line groove; and a terminal pin groove is formed on two opposite side surfaces of the terminal pin and below the easy-to-break groove respectively.

As a further improvement of the invention, at least one winding hole is formed on the material belt, at least one wire inlet through groove corresponding to the winding hole one by one is formed on the material belt and on one side close to the winding hole, an external opening is formed at one end of the wire inlet through groove on the side surface of the material belt far away from the PIN needle, and the other end of the wire inlet through groove extends towards the inside of the material belt and is communicated with the winding hole; the wire inlet through groove is provided with opposite arc-shaped side walls from the outer opening to the winding hole, and the width of the wire inlet through groove is gradually reduced from the outer opening to the winding hole; the material belt is further provided with two positioning holes, and the winding hole, the feeding through groove and the PIN needle are formed between the two positioning holes.

An electronic component shell comprises a base and at least one PIN needle material belt, wherein at least one accommodating groove is formed in the base, and the PIN needle material belt is arranged on the side wall of the accommodating groove.

As a further improvement of the invention, two opposite side walls of the accommodating groove are respectively provided with an inner wall and an outer wall positioned outside the inner wall, the lower end surface of the inner wall is flush with the lower end surface of the outer wall, and the upper end surface of the inner wall is higher than the upper end surface of the outer wall; the lead pins penetrate out of the base from the lower part of the base and between the inner wall and the outer wall upwards, and the lower end of the ridge wire groove is higher than the upper surface of the outer wall; the welding foot is in contact with the lower end face of the outer wall, and the material belt is positioned on the outer side of the outer wall; and at least one lead groove corresponding to the PIN needles one to one is formed on the upper end surface of the inner wall in a concave manner.

As a further improvement of the present invention, the present invention further comprises an upper cover disposed above the base, wherein the upper cover is disposed on the lower end surface of the upper cover and located above the outer wall to respectively extend downward to form opposite protective cover plates, at least one abdicating slot corresponding to the terminal pins is formed on the inner side of the protective cover plate, two lower protruding blocks are respectively symmetrically disposed at two opposite ends of the upper cover and near the protective cover plate, and a clamping hole is formed on each lower protruding block.

As a further improvement of the invention, a positioning slot for inserting the lower convex block is formed on the base and below the lower convex block, and a convex clamping block matched with the clamping hole is formed on the positioning slot.

A network filter comprises the electronic component shell and a magnetic core assembly, wherein the magnetic core assembly comprises a magnetic core and a coil wound on the periphery of the magnetic core, the coil is provided with a lead, the magnetic core assembly is arranged in a containing groove, the lead is clamped in a ridge wire groove, the lead is electrically connected with a welding pin, the welding pin is provided with a cutting surface at a broken groove, and the cutting surface comprises a tin-climbing inclined surface.

The production process of the network filter comprises the following steps:

s1, stamping, bending and forming a PIN needle material belt;

s2, injection molding: putting the PIN needle material belt molded in the step S1 into a base mold, injecting glue solution into the base mold, and cooling and molding to obtain a base plastic part with the PIN needle material belt;

s3, baking: putting the base plastic part subjected to injection molding in the step S2 into an oven, baking for 2-3h at the temperature of 135-145 ℃, and taking out;

s4, burr treatment: and removing the glue and burrs on the surface of the PIN needle on the baked base plastic part.

S5, electroplating the PIN needle material belt: electroplating a layer of metal coating on the surface of the PIN needle after burr treatment, wherein the metal coating comprises a metal nickel coating positioned on the outer surface of the PIN and a metal tin coating positioned on the outer surface of the nickel coating.

S6, preparing a magnetic core assembly: winding the enameled wire on the periphery of the magnetic core and reserving a lead to obtain a magnetic core assembly;

s7, necking down by punching a ridge line groove: placing the magnetic core assembly pieces in the accommodating groove in sequence, and enabling the lead to pass through the lead groove and the ridge groove in sequence; then, winding the lead at the winding hole; finally, oppositely pressing and clamping the upper ends of the two side walls of the ridge line groove;

s8, cutting a lead: cutting off the lead wire penetrating out of the threshold wire slot along the outer side of the lead pin so as to separate the lead wire penetrating out of the threshold wire slot from the element shell;

s9, cutting a material belt: cutting off the material belt along the breaking groove to separate the material belt from the element shell to obtain a semi-finished product of the network filter;

s10, soldering tin for lead pins: soldering tin between the lead wire and the ridge wire groove of the semi-finished product of the network filter manufactured in the step S9 to fix the lead wire and the ridge wire groove and electrically conduct the lead wire and the ridge wire groove;

s11, welding foot soldering tin: soldering tin at the end part of the soldering pin; namely, the network filter is manufactured;

and S12, assembling an upper cover, and covering the upper cover on the element shell to obtain the network filter.

As a further improvement of the present invention, the stamping, bending and integrally forming of the PIN needle material strip in step S1 includes the following steps:

s1-1, trimming the material belt: taking a coiled metal material sheet and trimming the edge of the coiled metal material sheet;

s1-2, punching positioning holes: stamping at least one positioning hole group on the trimmed material belt, wherein the positioning group comprises two positioning holes;

s1-3, punching wire winding holes: punching at least one wire winding hole between two positioning holes of the positioning hole group;

s1-4, stamping a lead pin slot;

s1-5, stamping and welding a pin;

s1-6, stamping a lead pin;

s1-7, stamping an easy-to-break groove;

s1-8, punching a wire inlet through groove;

s1-9, bending the terminal pin;

and S1-10, cutting off the edge materials of the material belt.

In the step S7, when the notch grooves are punched and reduced, a jig may be used to reduce the notch grooves simultaneously, and the punching surface of the jig is formed with punching grooves corresponding to the notch grooves one to one.

The invention has the beneficial effects that: according to the PIN needle material belt, the lead PINs are provided with the groove with the upper opening, the two side walls of the groove are provided with the easy-to-break grooves so as to reduce the thickness of the side walls of the groove, when electronic elements are produced and processed, particularly when a network filter is produced and processed, the leads can rapidly penetrate through the groove, and the side walls of the groove are easily pressed to clamp and fix the leads, so that the production efficiency of the electronic elements is improved, particularly the production efficiency of the network filter is improved;

according to the element shell, the base and the PIN needle material belt are combined in advance to form a simple and stable skeleton structure, when an electronic element is produced, particularly when a network filter is produced, only the lead wires on the magnetic core need to be wound on the element shell in sequence, and finally the lead wires and the material belt are cut off, so that the production process is greatly simplified, the production efficiency is effectively improved, the structure of the electronic element shell is simple, the size error of processing is small, and the performance stability of the electronic element is favorably improved;

the network filter is made of the element shell, has stable performance, stronger anti-interference performance and convenient assembly, improves the production efficiency of the network filter and reduces the production cost.

The PIN needle material area adopts the punching press technology integrated processing shaping of buckling to adopt injection molding process to combine PIN material area and base structure as an organic whole, processing technology is simple, and the product precision is high, and the structure is firm.

The above is an overview of the technical solutions of the present invention, and the present invention is further described below with reference to the accompanying drawings and the detailed description thereof.

Drawings

FIG. 1 is a schematic structural diagram of a PIN needle material belt of the present invention;

FIG. 2 is an enlarged view of a portion of a break groove in the PIN needle tape of the present invention;

FIG. 3 is a schematic structural view of a component housing according to the present invention;

FIG. 4 is a diagram of a process for winding the lead wire of the network filter according to the present invention;

FIG. 5 is a schematic structural view of a threshold slot of the network filter of the present invention after clamping a lead and cutting the lead;

fig. 6 is a schematic structural view of the network filter of the present invention after the lead and the material tape are cut off;

fig. 7 is a schematic structural diagram of an upper cover in the network filter according to the present invention;

fig. 8 is a schematic structural diagram of a network filter according to the present invention.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined purposes, the following detailed description of the embodiments of the present invention is provided with the accompanying drawings and the preferred embodiments.

Referring to fig. 1 and 2, a PIN strip 4 includes a strip 1 and at least one PIN 2 formed on a side surface of the strip 1, where an end of the PIN 2 away from the strip 1 is bent upward to form a lead 71, an end of the PIN 2 connected to the strip 1 has a solder foot 22, an end of the lead 71 above the lead 21 and away from the solder foot 22 is recessed to form a notch 25, and sides of the two sidewalls of the notch 25 and away from the notch 25 are recessed to form an easy-to-bend groove 23 with a tapered structure, so that after the lead 71 passes through the notch 25, the two sidewalls of the notch 25 are pressed together, that is, the lead 71 can be fixed in the notch 25, the easy-to-bend groove 23 is formed on the sidewall of the notch 25 to reduce the thickness of the sidewall, and the sidewall of the notch 25 can be pressed together more easily, thereby improving the production efficiency of the electronic component, in particular to improve the production efficiency of a network filter.

In the embodiment, a breaking groove 3 is formed on the upper surface of the PIN 2 and between the soldering foot 22 and the material tape 1. Through set up a broken recess 3 between material area 1 and PIN needle 2, can follow broken recess 3 department and excise material area 1 fast, material area 1 excises convenient and all PIN needles 2 all have neat section, reduces the dimensional error who arouses when excising material area 1, improves the product yield. The two side walls of the break-off groove 3 are respectively provided with an inclined surface 31, and the lower ends of the two inclined surfaces 31 are intersected at the bottom of the break-off groove 3 to form an inverted cone-shaped groove. In this way, the tape 1 is more easily cut at the reverse tapered groove, and the end of the soldering foot 22 after the tape 1 is cut off has the structure of the inclined surface 31, so that when the soldering foot 22 is soldered to an external element, tin climbing on the inclined surface 31 is more easily realized, and the soldering effect of the soldering foot 22 is improved.

Specifically, the easy-to-fold groove 23 is close to the lower end of the threshold line groove 25, and when two side walls of the threshold line groove 25 are pressed, the side walls deform at positions above the easy-to-fold groove 23, so that the threshold line groove 25 can clamp the lead 71 passing through the easy-to-fold groove, and the upper end of the easy-to-fold groove is tightly closed to prevent the lead 71 from falling off.

Specifically, at least one winding hole 11 is formed in the material strip 1, at least one wire inlet through groove 12 corresponding to the winding hole 11 one by one is formed in the material strip 1 and on one side close to the winding hole 11, an outer opening 121 is formed in one end of the wire inlet through groove 12 on the side surface of the material strip 1 far away from the PIN needle 2, and the other end of the wire inlet through groove 12 extends towards the inside of the material strip 1 and is communicated with the winding hole 11; the wire inlet through groove 12 is formed with opposite arc-shaped side walls 122 from the outer opening 121 to the winding hole 11, and the width of the wire inlet through groove 12 gradually decreases from the outer opening 121 to the winding hole 11; therefore, when electronic components are produced and processed, specifically, when a network filter is produced and processed, the lead 71 passes through the ridge slot 25 and then is clamped into the wire winding hole 11 by the wire inlet through slot 12 and wound, so that the lead 71 is tensioned and fixed, when the lead 71 is pressed and fixed in the ridge slot 25 and before the lead 71 is cut off, the lead 71 is in a tensioned and fixed state, and processing errors caused by loosening of the lead 71 are avoided, moreover, the wire inlet through slot 12 matched with the wire winding hole 11 is further arranged on the material belt 1, meanwhile, the wire winding hole 11 is connected with the arc-shaped side wall 122 of the wire inlet through slot 12 to form a lug structure, a plurality of leads 71 can be wound on the same wire winding hole 11, namely, one wire winding hole 11 can correspondingly wind a plurality of leads 71, the material belt structure is simplified, the processing difficulty is reduced, and the processing cost is reduced.

Still be provided with two locating holes 13 on the material area 1, wire winding hole 11, the logical groove 12 of feeding and PIN needle 2 all are formed at two location 13 interpunctions, add man-hour in PIN needle material area 4, and convenient location improves the machining precision in PIN needle material area 4.

As shown in fig. 3, the present embodiment further discloses an electronic component housing, which includes a base 5 and at least one PIN needle material strip 4 as described above, wherein at least one accommodating groove 51 is formed on the base 5, and the PIN needle material strip 4 is disposed on a sidewall of the accommodating groove 51.

Specifically, two opposite side walls of the accommodating groove 51 are respectively provided with an inner wall 52 and an outer wall 53 located outside the inner wall 52, a lower end face of the inner wall 52 is flush with a lower end face of the outer wall 53, and an upper end face of the inner wall 52 is higher than an upper end face of the outer wall 53; the lead 71 pin 21 extends out of the base 5 from the lower part of the base 5 and between the inner wall 52 and the outer wall 53, and the lower end of the ridge line groove 25 is higher than the upper surface of the outer wall 53; the welding foot 22 is in contact with the lower end face of the outer wall 53, and the material belt 1 is positioned on the outer side of the outer wall 53; at least one lead wire 71 groove 54 corresponding to the PIN needles 2 one by one is formed on the upper end surface of the inner wall 52 in a concave mode. The lead 71 PIN 22 is inserted into the side wall of the base 5, so that the wire groove 25 is located at the upper end of the base 5, the welding PIN 22 abuts against the lower end face of the outer wall of the base 5, and in subsequent processing, the welding PIN 22 or the lead 71 PIN 21 does not need to be bent, and the strip 1 can be directly cut along the breaking groove 3, namely the subsequent processing of the PIN is not influenced by the arrangement of the breaking groove 3.

In order to connect the PIN 2 with the base 5 firmly, a PIN 71 groove 24 is formed on two opposite side surfaces of the PIN 71 and below the easy-to-break groove 23, and the PIN 71 groove 24 is located between the inner wall 52 and the outer wall 53.

In this embodiment, the electronic component housing further includes an upper cover 6 disposed above the base 5, the upper cover 6 is disposed on the lower end surface of the upper cover 6 and located above the outer wall 53 to extend downward to form an opposite protective cover plate 61, at least one abdicating slot 62 corresponding to the pins 21 of the lead 71 is formed inside the protective cover plate 61, two lower protruding blocks 63 are symmetrically disposed at opposite ends of the upper cover 6 and near the protective cover plate 61, a locking hole 631 is formed on the lower protruding block 63, and the upper cover 6 is disposed above the base 5, so that a closed space is formed inside the electronic component housing, which is beneficial to improving the performance stability and the service life of the electronic component.

For assembly convenience, a positioning slot 55 is formed on the base 5 below the lower protrusion 63 for inserting the lower protrusion 63, and a male latch 56 is formed on the positioning slot 55 for engaging with the latch hole 631.

Thus, the electronic element shell is composed of the base 5 and the PIN needle material belt 4 inserted between the inner wall 52 and the outer wall 53 of the side wall of the base 5, a simple and stable skeleton structure is formed, when the electronic element is prepared, when the electronic element is produced, particularly when the network filter is produced, only the lead 71 on the magnetic core needs to be wound on the element shell in sequence, and finally the lead 71 and the material belt are cut off, so that the production process is greatly simplified, the production efficiency is effectively improved, the electronic element shell is simple in structure, the size error of processing is small, and the performance stability of the electronic element is favorably improved;

in this embodiment, a network filter is further provided, which includes the electronic component housing 5 and the magnetic core assembly 7, where the magnetic core assembly 7 includes a magnetic core and a coil wound around the periphery of the magnetic core, the coil has a lead 71, the magnetic core assembly 7 is disposed in the accommodating groove, the lead 71 is clamped in the ridge slot 25, the lead 71 is electrically connected to the soldering pin 22, the soldering pin 22 has a cut surface at the broken groove 3, and the cut surface includes the tin-climbing slope 31.

When the element shell is used for preparing the network filter, firstly, a magnetic core wound with a coil is placed in the containing groove 51, a lead 71 of the coil sequentially passes through the lead 71 groove 54 on the inner wall 52 and the ridge groove 25 on the lead 71 pin 21, then the lead 71 is wound on the winding hole 11 to realize the tensioning and fixing of the lead 71, and then two side walls of the ridge groove 25 are pressed to enable the lead 71 to be clamped in the ridge groove 25; then, cutting off the lead 71 between the ridge line groove 25 and the material belt, and simultaneously breaking the material belt 1 along the breaking groove 3; finally, the lower convex block 63 of the upper cover 6 is moved down along the positioning slot 55 of the base 5 until the outer convex block 56 is clamped into the clamping hole 631, and at this time, the upper ends of the pins 21 of the lead wires 71 are correspondingly clamped into the yielding slots 62, so that the upper cover 6 and the base 5 are stably combined, and the network filter is manufactured. The network filter has the advantages of simple overall structure, small size error of processing, stable performance, strong anti-interference performance, convenient assembly, easy realization of large-scale production, contribution to improving the production efficiency of the network filter and reduction of the production cost.

The embodiment also discloses a production process of the network filter, which comprises the following steps:

s1, stamping, bending and forming a PIN needle material belt;

s2, injection molding: putting the PIN needle material belt molded in the step S1 into a mold, injecting glue solution into the mold, and cooling and molding to obtain a semi-finished product of the electronic element shell;

s3, baking: placing the semi-finished product of the electronic element shell after the injection molding in the step S2 into a baking oven, and baking for 2-3h at the temperature of 135-145 ℃;

s4, burr treatment: and removing the glue and burrs on the surface of the PIN needle on the baked semi-finished product of the electronic element shell.

S5, electroplating the PIN needle material belt: electroplating a layer of metal coating on the surface of the PIN needle material belt after burr treatment, wherein the metal coating comprises a metal nickel coating positioned on the outer surface of the PIN and a metal tin coating positioned on the outer surface of the nickel coating.

S6, preparing a magnetic core assembly: winding the enameled wire on the periphery of the magnetic core and reserving a lead to obtain a magnetic core assembly;

s7, necking down by punching a ridge line groove: placing the magnetic core assembly pieces in the accommodating groove in sequence, and enabling the lead to pass through the lead groove and the ridge groove in sequence; then, winding the lead at the winding hole; finally, oppositely pressing and clamping the upper ends of the two side walls of the ridge line groove;

s8, cutting a lead: cutting off the lead wire penetrating out of the threshold wire slot along the outer side of the lead pin so as to separate the lead wire penetrating out of the threshold wire slot from the element shell;

s9, cutting a material belt: cutting off the material belt along the breaking groove to separate the material belt from the shell of the electronic element to obtain a semi-finished product of the network filter;

s10, soldering tin for lead pins: soldering tin between the lead wire and the ridge wire groove of the semi-finished product of the network filter manufactured in the step S9 to fix the lead wire and the ridge wire groove and electrically conduct the lead wire and the ridge wire groove;

s11, welding foot soldering tin: soldering tin on the end part of the welding leg end part and the end part with the cut surface; namely, the network filter is manufactured;

and S12, assembling an upper cover, and covering the upper cover on the element shell to obtain the network filter.

The method for forming the upper cover 6 can be performed by injection molding, baking, and burr processing on the upper cover mold according to the above steps S2, S3, and S4 to form the upper cover.

Specifically, the stamping, bending and integral forming of the PIN needle material strip in the step S1 includes the following steps:

s1-1, trimming the material belt 1: taking a strip-shaped metal sheet and trimming the edge of the metal sheet;

s1-2, punching positioning hole 13: stamping at least one positioning hole group on the trimmed material belt 1, wherein the positioning group comprises two positioning holes 13;

s1-3. punching the winding hole 11: at least one wire winding hole 11 is formed between two positioning holes 13 of the positioning hole group in a punching mode;

s1-4, punching a ridge line groove;

s1-5, stamping and welding a pin;

s1-6, stamping a lead pin;

s1-7, stamping an easy-to-break groove;

s1-8, punching a wire inlet through groove;

s1-9, bending the terminal pin;

and S1-10, cutting off the edge materials of the material belt.

PIN needle material area 4 is through punching press bending process integrated into one piece, does benefit to and improves 4 overall structure stability in PIN needle material area, but a plurality of PIN needle material areas 4 of one shot forming improve production efficiency. The component shell of this embodiment adopts injection molding process to combine PIN needle material area 4 and base 5 into an organic whole structure, PIN material area 4 is firm to be fixed and forms a skeleton texture on base 5, when carrying out electronic component processing production, only need put magnetic core assemblage 7 into storage tank 51 on base 5, and twine lead wire 71 on the component shell according to the order, realize the taut and fixed of lead wire 71, make things convenient for follow-up cutting out to lead wire 71, and material area 1, the electronic component dimensional error who obtains is little, realize large-scale production easily, improve electronic component production efficiency, an upper cover 6 has still been set up on base 5 simultaneously, base 5 combines inside formation an inclosed space with upper cover 6 like this, do benefit to improvement electronic component's performance stability and life.

In step S7, when the notch groove 25 is punched, a jig 8 may be used to simultaneously perform notch reduction on a plurality of notch grooves 25, the punching surface of the jig 8 is formed with the punching grooves 81 corresponding to the notch grooves 25 one to one, when the notch reduction is performed, the jig 8 is pressed down from above the notch grooves 25, when the jig 8 is pressed down in place, the notch groove 25 is reduced, the jig has a simple structure, and the notch reduction may be performed on a plurality of notch grooves at one time, thereby improving the production efficiency.

In summary, in the PIN strip 3 of the invention, the lead 71 leg 21 is provided with the notch 25 having the upper opening, and the two side walls of the notch 25 are provided with the easily-breaking grooves 23 to reduce the thickness of the side walls of the notch 25, when the electronic component is produced and processed, specifically, when the network filter is produced and processed, the lead 71 can rapidly penetrate through the notch 25, and the side walls of the notch 25 are easily pressed to clamp and fix the lead 71, thereby improving the production efficiency of the network filter; the element shell is characterized in that the base 5 and the PIN needle material belt 4 are combined in advance to form a simple and stable skeleton structure, when an electronic element is produced, particularly when a network filter is produced, only the lead 71 on the magnetic core needs to be wound on the element shell in sequence, and finally the lead 71 and the material belt 1 are cut off, so that the production is convenient, the production efficiency is effectively improved, the network filter made of the element shell is simple in structure, small in processing size error, stable in performance, high in anti-interference performance and convenient to assemble, the production efficiency of the network filter is improved, and the production cost is reduced; PIN needle material area 4 adopts the punching press technology integrated processing shaping of buckling to adopt injection molding process to combine PIN material area 4 and base 5 into an organic whole structure, processing technology is simple, and the product precision is high, and the structure is firm.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that other structures obtained by using the same or similar technical features as the above-described embodiments of the present invention are within the protection scope of the present invention.