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CN113871165A - Axe knife type stitch copper wire connection structure and transformer, inductor and choke coil thereof - Google Patents

Axe knife type stitch copper wire connection structure and transformer, inductor and choke coil thereof Download PDF

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Publication number
CN113871165A
CN113871165A CN202110994986.9A CN202110994986A CN113871165A CN 113871165 A CN113871165 A CN 113871165A CN 202110994986 A CN202110994986 A CN 202110994986A CN 113871165 A CN113871165 A CN 113871165A
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China
Prior art keywords
copper wire
pin
axe
winding
connection structure
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Pending
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CN202110994986.9A
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Chinese (zh)
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陆桐岗
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Individual
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Individual
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Priority to CN202110994986.9A priority Critical patent/CN113871165A/en
Publication of CN113871165A publication Critical patent/CN113871165A/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/29Terminals; Tapping arrangements for signal inductances
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/29Terminals; Tapping arrangements for signal inductances
    • H01F2027/297Terminals; Tapping arrangements for signal inductances with pin-like terminal to be inserted in hole of printed path

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)

Abstract

The axe-shaped pin copper wire connection structure and the transformer, the inductor and the choke coil thereof are used for connecting a pin and a winding copper wire and comprise a columnar pin body; a 7-shaped inverted axe knife opening is formed in the winding position at the upper part of the pin body; the hatchet knife opening consists of a limiting table top for positioning and tearing off when a copper wire is wound and a winding post for winding the copper wire; the limiting table surface is transversely arranged relative to the pin body; the winding post is bent from the top end to a position close to the side of the limiting table surface at a certain angle to form an angle clamping opening which is started from the limiting table surface and is annularly wound on the upper side of the copper wire coil on the winding post for limiting and fixing; the copper line of being convenient for plug into fixes a position and tears apart at same position, and convenient follow-up welding position and the detection position of setting for use manpower sparingly greatly and improvement work efficiency.

Description

Axe knife type stitch copper wire connection structure and transformer, inductor and choke coil thereof
[ technical field ] A method for producing a semiconductor device
The invention relates to a pin wiring technology, in particular to an axe-shaped pin copper wire connection structure and a transformer, an inductor and a choke coil thereof.
[ background of the invention ]
In the prior art, a pin applied to a transformer, an inductor, a choke coil or other electronic components is structured as shown in fig. 1, generally, circular arc notches 2 ' are symmetrically arranged on two sides of a square column-shaped pin 1 ' for fixing a winding and preventing the winding from slipping, but the pin itself is small, and a pin body is narrow, so that the circular arc notches 2 ' are symmetrically arranged on the two sides, so that the notches on the two sides of the pin are too small and cannot be too large; therefore, as shown in fig. 2 to 4, when the pin 1 'is applied to different transformers, because the winding limiting notch on the existing pin cannot play a role in winding limiting at all, the general winding 3' far exceeds the notches 2 'on both sides, which causes the winding of the pin 1' to often slip or be uncertain in positioning because of no limiting, and because the existing pin 1 'adopts horizontal winding, the winding position may slide up and down, the tail of the winding 3' may slide in the tin immersion process to cause a cold solder or a false solder, which is inconvenient for subsequent welding and detection, reduces the qualification rate of products, and is not beneficial to the mass rapid production of the products. For example, because the tail of the winding of the stitch 1 'is not limited and is not positioned definitely, the positions of the welding spots are inconsistent, when the positions of the welding spots are checked, as shown in fig. 5, the positions of the welding spots can only be manually detected one by one through the magnifier 4', and the detection efficiency is low and the detection effect is poor.
Meanwhile, because the existing stitch winding mode is horizontal winding, the winding needs to be rotated by 360 degrees for 1 week, and is limited by the obstruction of adjacent left and right stitches, the winding speed is slow, and the production efficiency cannot be improved; as shown in fig. 2, when the winding 3 ' is at the bottom of the pin 1 ' and is close to the coil 5 ', the coil is likely to be burned during the tin immersion process, which results in the problem of voltage resistance.
[ summary of the invention ]
In order to solve the technical difficulties, the invention provides the axe-shaped stitch copper wire connection structure, the transformer, the inductor and the choke coil, which are simple in structure, convenient for winding, convenient for positioning, fixing and breaking the connection copper wire at the same position, convenient for subsequently setting a welding position and a detection position, greatly saving labor and improving the working efficiency.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the axe-shaped pin copper wire connection structure is used for connecting a pin and a wound copper wire and comprises a columnar pin body;
a 7-shaped inverted axe knife opening is formed in the winding position at the upper part of the pin body;
the hatchet knife opening consists of a limiting table top for positioning and tearing off when a copper wire is wound and a winding post for winding the copper wire;
the limiting table board is transversely or transversely obliquely arranged relative to the pin body.
Furthermore, the winding post is bent from the top end to a position close to the side of the limiting table surface at a certain angle to form an included angle opening which is started from the limiting table surface and is annularly wound on the upper side of the copper wire coil on the winding post for limiting and fixing.
Furthermore, the hatchet opening is arranged on the single-side wall of the winding position at the upper part of the stitch.
Furthermore, the wrapping post is of an axe blade plate type structure with a large upper part and a small lower part, and the axe blade plate type structure is obliquely and outwards arranged.
Further, the pin body is a rectangular plate-shaped main body.
Furthermore, the limiting table board is horizontally arranged relative to the pin body.
Furthermore, the relative stitch body of spacing mesa slopes upward from inside to outside slant setting.
Furthermore, an arc corner for positioning or/and breaking the wound copper wire is formed at the corner connecting part of the limiting table top and the winding post.
Further, the distance from the arc corner to the outer edge of the hatchet opening accounts for 1/3-1/2 of the width of the whole stitch body.
Furthermore, the included angle range of the included angle port is 15-90 degrees.
The transformer comprises pins, wherein the pins adopt the axe-shaped pin copper wire connection structure.
An inductor, includes the stitch, the stitch adopts foretell axe type stitch copper line structure of plugging into.
A choke coil comprises a pin, wherein the pin adopts the axe-shaped pin copper wire connection structure.
The invention has the beneficial effects that:
the pin body of the invention adopts the single-side 7-shaped inverted and obliquely-opened axe knife opening, is suitable for electronic elements needing pin wiring, such as transformers, inductors, choke coils and the like, when the pin body adopts the axe-shaped straight pin design, the limiting notch at one side of the pin body can be enlarged to the maximum extent, the winding wire can be completely limited at the position of the limiting table surface after the limiting table surface is enlarged, and the corresponding winding post at the position is of an axe knife plate structure with the large upper part and the small lower part and obliquely and outwards arranged, thereby forming a limiting structure with the limiting table surface at the lower end for limiting, and being easy for wiring and controlling the winding position to be fixed at the position of the limiting table surface.
When the pin body is designed by adopting the axel-shaped bent pin, the pin body is bent to further prevent a winding coil wound at the pin from falling upwards, so that a larger limiting included angle port with a limiting table top limiting at the lower end and a large-upper-lower-small axel plate type structure bending at the upper end is formed, the winding is quick and convenient, and the winding positioning is accurate and firm; the copper wire that is convenient for fast wire winding, the copper line of being convenient for plug into fixes a position and tears apart at same position, and convenient follow-up automatic weld position and automated inspection position of setting for use, use manpower sparingly and improve work efficiency in a large number.
During the use, only need with the spacing mesa and the turning position department of copper line card income stitch body to clockwise winding one to two circles, later at the knife edge department at spacing mesa edge directly snap-off copper line, can save a large amount of kinks cost of labor, realize quick wire winding.
And compared with the existing pin design, the position of the welding point cannot be fixed, the height is high, the welding point is arranged below the pin, automatic welding point inspection cannot be realized, only manual microscopic inspection can be needed, and the problems of high cost, high error rate and the like are solved. According to the invention, the pin header is formed after the plurality of pin bodies are wound, and all connected copper wires are arranged at the same fixed position of the pin header, so that the position of a tin dipping machine is conveniently set to carry out automatic tin dipping welding at the same position, poor contact of welding is effectively prevented, the problem of insufficient welding is solved, and the reliability of the welding quality of products is improved; in addition, welded welding spots are unified at the same position of the top of the pin header, so that the welding spots are convenient to inspect, an automatic welding spot inspection machine can be effectively used for inspecting each welding spot, and 100% reliable detection of the welding spots is realized.
[ description of the drawings ]
FIG. 1 is an enlarged schematic view of a three-dimensional structure of a pin in the prior art;
FIG. 2 is a schematic perspective view of a prior art pin used in a transformer;
FIG. 3 is a schematic diagram of a side view of a prior art pin used in a transformer;
FIG. 4 is a schematic diagram of a prior art process for winding a stitch;
FIG. 5 is a schematic diagram of a prior art manual detection of stitches using a magnifying glass;
FIG. 6 is an enlarged schematic view of a bending process of the middle pin according to an embodiment of the present invention;
FIG. 7 is a schematic perspective view of a transformer according to an embodiment of the present invention;
FIG. 8 is a schematic cross-sectional view of a transformer in accordance with an embodiment of the present invention;
FIG. 9 is a schematic diagram of a winding process for a transformer according to the present invention;
fig. 10 is a schematic perspective view of a transformer according to a second embodiment of the present invention;
FIG. 11 is a schematic cross-sectional view of a transformer according to a second embodiment of the present invention;
FIG. 12 is a schematic diagram of a side view of a transformer with windings according to a second embodiment of the present invention;
FIG. 13 is a schematic diagram of a winding process applied to a transformer according to a second embodiment of the present invention;
FIG. 14 is a schematic diagram of a second embodiment of the present invention using an automatic solder joint inspection machine;
FIG. 15 is an enlarged perspective view of a straight stitch configuration in accordance with the third embodiment of the present invention;
fig. 16 is a schematic perspective view of a coil transformer according to a third embodiment of the present invention;
fig. 17 is a schematic perspective view of a skeleton colloid transformer according to a third embodiment of the present invention.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
The structure for connecting the axel-type stitch copper wire, as shown in fig. 6 to 8, is used for connecting a stitch with a wound copper wire and can be applied to a transformer, and includes a columnar stitch body 1, in this example, the stitch body 1 adopts an axel-type bent stitch design, the stitch body 1 is a rectangular plate-shaped main body, and the width of the plate-shaped main body is 0.5 to 0.6 mm, and preferably 0.56 mm or 0.6 mm; the single side of the winding position at the upper part of the pin body 1 is provided with a 7-shaped inverted axe knife opening 2, namely, the axe knife opening 2 is arranged at the single side wall of the winding position at the upper part of the pin.
Continuing to be shown in fig. 6 to 9, the hatchet knife opening 2 is composed of a limiting table surface 20 for positioning and breaking when a copper wire is wound and a wrapping post 21 for winding the copper wire, the wrapping post 21 is of a hatchet knife plate type structure with a large upper part and a small lower part and arranged obliquely outwards, an arc corner 22 for positioning the copper wire is formed at the corner connection part of the limiting table surface 20 and the wrapping post 21, and the distance from the arc corner 22 to the outer edge of the hatchet knife opening 2 accounts for 1/3-1/2 of the width of the whole pin body; the limiting table 20 is horizontally arranged relative to the pin body 1, the winding post 21 is bent from the top end to a position close to the side of the limiting table 20 at a certain angle to form an included angle port which is started at the limiting table 20 and is annularly wound on the upper side of a copper wire coil on the winding post 21 for limiting and fixing, and the included angle alpha of the included angle port in the embodiment is 60 degrees.
The axe knife opening 2 can enable a limiting notch on one side of the pin body 1 to be enlarged to the maximum extent, the limiting table surface 20 at the position can enable the winding to be completely limited at the position of the limiting table surface 20 after being enlarged, the winding column 21 is of an axe knife plate type structure with a large upper part and a small lower part, and a winding coil wound at the position cannot fall upwards after being bent, so that the limiting table surface 20 at the lower end is limited, the included angle port limits the upper end of the winding coil, the pin is enabled to be wound quickly and conveniently, and the winding positioning is accurate and firm; the copper wire that is convenient for fast wire winding, the copper line of being convenient for plug into fixes a position and tears apart at same position, and convenient follow-up automatic weld position and automated inspection position of setting for use, use manpower sparingly and improve work efficiency in a large number.
Example two
As shown in fig. 10 to 13, the difference between the first embodiment and the second embodiment is that the limiting table 20 is obliquely and obliquely inclined from inside to outside in the transverse direction relative to the stitch body 1, that is, the limiting table 20 is an inclined surface that is obliquely arranged, and further cooperates with the arc corner 22, so that the positioning of the copper wire winding is more effectively facilitated, the tail end of the copper wire is torn off after winding, and the winding efficiency is effectively improved.
Compare the straight stitch of current old-fashioned, the wire winding is very difficult on the stitch body during the use, because need the wire winding staff to strangulate the copper line earlier, pass adjacent left stitch body and the narrow space in the middle of the right stitch body respectively, the pocket is changeed 360 degrees and just can be accomplished the wire winding round on the stitch body, because the space is limited about the stitch body, hardly smoothly accomplishes wire winding work, needs wire-wound man-hour longer, and work efficiency is not high. In the first and second embodiments, the stitch body with the bending axe-shaped structure is used, so that a wiring worker only needs to clamp the copper wire to be clamped into the position of the limiting table board 20, and the copper wire is pulled up immediately after the copper wire is wrapped down slightly and passes through the bent position of the stitch, namely, the winding is completed for one circle on the stitch, the spacing or the interference of the adjacent left and right stitch body spaces is avoided, the winding work is very smooth and fast, the winding working time can be effectively saved, and the winding efficiency is improved.
Meanwhile, compared with the existing old straight needle winding, the winding height is inconsistent because the pin body is not clamped to fix the winding position, and some wires are wound at the root of the pin body and are close to the plastic shell colloid or the framework colloid, when the wires are soldered by tin dipping, cold soldering or false soldering can be caused, and if the tin dipping of the tin dipping machine is calibrated deeper, the coils in the product can be further damaged, and more serious quality problems such as short circuit, voltage withstanding test and the like can be caused; in the first embodiment and the second embodiment, the pin body with the bent axe-shaped structure is used, and the winding is clamped in the position of the limiting table top 20 and the wound coil is fixed at the top of the pin bending position, so that the pin body is not soaked too low during tin immersion and soldering, the position of a tin immersion machine is only required to be controlled to be soldered to the top of the pin body wiring, and the pin body is far away from a coil or a framework colloid and an inner coil of a product, so that the reliability of a soldering point can be effectively ensured, and the quality problems of false soldering and false soldering can be reduced; in addition, the improved structure does not need to dip the pin body of the product to the root position during tin dipping, so that the problem that a coil colloid or a framework colloid is burnt and melted can be avoided, more importantly, the problem of short circuit or voltage resistance test caused by welding to damage an inner coil of the product can be avoided, and the reliability of the product can be effectively improved.
In addition, the winding position can be ensured, and the corresponding welding point position can be fixedly arranged at the top of the pin body, so that the consistent welding point position can be maintained; therefore, as shown in fig. 14, the improved structure is suitable for using the automatic welding spot detector 4 to realize full-automatic detection of each welding spot of a product, and performing quick inspection or test, thereby saving time and labor and improving the quality and reliability of the product.
EXAMPLE III
As shown in fig. 15 to 17, in this embodiment, the pin body adopts an axel-type straight pin design, which is used for connecting a pin with a wound copper wire and can be applied to a transformer, and includes a columnar pin body 1, where the pin body 1 is a rectangular plate-shaped main body, and the width of the plate-shaped main body is 0.5 to 0.6 mm, and preferably 0.56 mm or 0.6 mm; the single side of the winding position at the upper part of the pin body 1 is provided with a 7-shaped inverted axe knife opening 2, namely, the axe knife opening 2 is arranged at the single side wall of the winding position at the upper part of the pin.
Continuing to be shown in fig. 15 to 17, the pin body designed by adopting the axe-shaped straight pin is applied to the coil transformer shown in fig. 16 or the skeleton colloid transformer shown in fig. 17, the axe opening 2 consists of a limiting table top 20 for positioning and breaking when a copper wire is wound and a winding post 21 for winding the copper wire, the winding post 21 is an axe plate type structure with a large upper part and a small lower part and is obliquely and outwards arranged, an arc corner 22 for positioning the copper wire is formed at the corner connection part of the limiting table top 20 and the winding post 21, and the distance from the arc corner 22 to the outer edge of the axe opening 2 accounts for 1/3-1/2 of the width of the whole pin body; wherein, the spacing table-board 20 is horizontally arranged relative to the pin body 1.
The pin body adopts the axe-shaped straight pin design, and compared with the defect that the left arc-shaped notch and the right arc-shaped notch at the top end of the pin are too small to prevent the winding from sliding out in the prior art, in the embodiment, the connection is easy, the winding position is controlled to be fixed at the position of the limiting table surface 20 of the pin body 1, the winding can be accurately positioned at the pin, and the winding is prevented from sliding downwards at the pin body 1; during processing, a wiring worker only needs to clamp a copper wire to be clamped into the limiting table board 20 to wind a wire on the winding post 21, the axe knife opening 2 is large, the wiring worker can clamp the wire into the axe knife opening 2 to wind the wire easily, the wire winding is fast, the wound coil can be clamped into the limiting table board 20 to be uniformly positioned, and the winding positions are consistent in height, so that when tin immersion and soldering are carried out, a stitch body does not need to be immersed too low, only a tin immersion machine needs to be controlled to solder the top of stitch wiring, and an inner coil which is far away from a wire packet or a framework colloid and a product is far away is achieved; the quality problem of short circuit or voltage withstanding test caused by welding damage to the coils in the product is effectively avoided, and the reliability of the product is improved. Similarly, owing to can ensure kinking position, the solder joint position that corresponds can fixed the setting at the top of stitch body, consequently, is fit for using automatic solder joint to detect each solder joint of product, carries out quick inspection or test, labour saving and time saving in the realization full automatization of automatic solder joint detection machine.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like refer to orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the invention, and all equivalent changes in shape, structure and principle of the invention should be covered by the protection scope of the present invention.

Claims (13)

1. The axe-shaped pin copper wire connection structure is used for connecting a pin and a wound copper wire and comprises a columnar pin body; the method is characterized in that:
a 7-shaped inverted axe knife opening is formed in the winding position at the upper part of the pin body;
the hatchet knife opening consists of a limiting table top for positioning and tearing off when a copper wire is wound and a winding post for winding the copper wire;
the limiting table board is transversely or transversely obliquely arranged relative to the pin body.
2. The axe-shaped stitch copper wire connection structure as claimed in claim 1, wherein the wrapping post is bent from the top end to a position close to the side of the limiting table surface at a certain angle to form an angle clamping opening which is limited and fixed by the upper side of the copper wire coil starting from the limiting table surface and annularly wound on the wrapping post.
3. The axe-shaped pin copper wire connection structure as claimed in claim 1, wherein the axe opening is opened on a single-side wall of a winding position at the upper part of the pin.
4. The axe-shaped stitch copper wire connection structure as claimed in claim 1, wherein the wrapping post is an axe-shaped plate structure with a large upper part and a small lower part and arranged obliquely outwards.
5. The axe-type pin copper wire connection structure as claimed in claim 1, wherein the pin body is a rectangular plate-shaped main body.
6. The axe-shaped pin copper wire connection structure as claimed in claim 1, wherein the limiting table is horizontally arranged relative to the pin body.
7. The axe-shaped pin copper wire connection structure as claimed in claim 1, wherein the limiting table is obliquely and obliquely arranged from inside to outside relative to the pin body.
8. The axe-shaped stitch copper wire connection structure as claimed in claim 2, wherein a corner joint of the limiting table top and the wrapping post forms an arc corner for winding a copper wire for positioning or/and breaking.
9. The axe-type pin copper wire connection structure as claimed in claim 8, wherein the distance from the arc corner to the outer edge of the axe opening is 1/3-1/2 of the whole pin body width.
10. The axe-shaped stitch copper wire connection structure as claimed in claim 2, wherein the included angle of the angle clamping port ranges from 15 ° to 90 °.
11. A transformer, comprising pins, wherein the pins adopt the axe-type pin copper wire connection structure of any one of claims 1 to 10.
12. An inductor, comprising a pin, wherein the pin adopts the axe-type pin copper wire connection structure of any one of claims 1 to 10.
13. An inductor comprising a pin, wherein the pin adopts the axe-type pin copper wire connection structure of any one of claims 1 to 10.
CN202110994986.9A 2021-08-27 2021-08-27 Axe knife type stitch copper wire connection structure and transformer, inductor and choke coil thereof Pending CN113871165A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110994986.9A CN113871165A (en) 2021-08-27 2021-08-27 Axe knife type stitch copper wire connection structure and transformer, inductor and choke coil thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110994986.9A CN113871165A (en) 2021-08-27 2021-08-27 Axe knife type stitch copper wire connection structure and transformer, inductor and choke coil thereof

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Publication Number Publication Date
CN113871165A true CN113871165A (en) 2021-12-31

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101271760A (en) * 2007-03-21 2008-09-24 富士康(昆山)电脑接插件有限公司 Electronic element and its producing method
CN104505229A (en) * 2014-12-25 2015-04-08 广州金升阳科技有限公司 Wire leading frame, manufacturing method bobbin based on wire leading frame and bobbin
CN210200516U (en) * 2019-07-19 2020-03-27 东莞联宝光电科技有限公司 Transformer framework with partition plates
CN111462995A (en) * 2020-05-06 2020-07-28 东莞普思电子有限公司 Transformer easy to produce and manufacture and manufacturing method thereof
CN218274204U (en) * 2021-08-27 2023-01-10 陆桐岗 Axe knife type stitch copper wire connection structure and transformer, inductor and choke coil thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101271760A (en) * 2007-03-21 2008-09-24 富士康(昆山)电脑接插件有限公司 Electronic element and its producing method
CN104505229A (en) * 2014-12-25 2015-04-08 广州金升阳科技有限公司 Wire leading frame, manufacturing method bobbin based on wire leading frame and bobbin
CN210200516U (en) * 2019-07-19 2020-03-27 东莞联宝光电科技有限公司 Transformer framework with partition plates
CN111462995A (en) * 2020-05-06 2020-07-28 东莞普思电子有限公司 Transformer easy to produce and manufacture and manufacturing method thereof
CN218274204U (en) * 2021-08-27 2023-01-10 陆桐岗 Axe knife type stitch copper wire connection structure and transformer, inductor and choke coil thereof

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