CN112382314A - Integrated coil miniature magnetic head - Google Patents
Integrated coil miniature magnetic head Download PDFInfo
- Publication number
- CN112382314A CN112382314A CN202011457511.8A CN202011457511A CN112382314A CN 112382314 A CN112382314 A CN 112382314A CN 202011457511 A CN202011457511 A CN 202011457511A CN 112382314 A CN112382314 A CN 112382314A
- Authority
- CN
- China
- Prior art keywords
- coil
- magnetic core
- integrated
- layer
- coils
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/17—Construction or disposition of windings
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/10—Structure or manufacture of housings or shields for heads
- G11B5/11—Shielding of head against electric or magnetic fields
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Abstract
The invention relates to the technical field of magnetic heads, and provides an integrated coil micro magnetic head. Including the shielding shell, be equipped with the magnetic core in the shielding shell, the shielding shell internal fixation has the magnetic core cover, the bottom of magnetic core cover is fixed with the backup pad, the centre of magnetic core cover is equipped with the baffle, the magnetic core cover respectively is equipped with a magnetic core in baffle both sides, the bottom of backup pad is fixed with integrated coil, integrated coil's every layer circuit board all etches has the multiunit coil, adjacent two-layer circuit board's coil is in turn through center counter bore or endpoint counter bore carry out electric connection, the coil of each layer circuit board forms the electric circuit, integrated coil is equipped with a plurality of electrodes and a common electrode, the electric circuit that the coil formed begins at an electrode and ends at common electrode, electrode and common electrode are integrated in binding post jointly. The invention has the beneficial effects that: the integrated circuit board type integrated coil is adopted to replace the traditional winding coil mode, so that the internal space of the magnetic head is saved, and the miniaturization design of the magnetic head is facilitated.
Description
Technical Field
The invention relates to the technical field of magnetic heads, in particular to a miniature magnetic head with an integrated coil adopted by a coil.
Background
A magnetic head refers to a component that reads data on a magnetic medium by the principle of magnetism. Common magnetic heads include hard disk heads, tape recorder heads, bill validator heads, and the like. The magnetic head of the recorder works on the principle of electromagnetic induction, so that one to two winding coils are arranged in the audio control magnetic head to read and write the magnetic strip. In order to ensure the effective reading and recording capability of the magnetic head to the magnetic strip, the winding coil is difficult to reduce after being reduced to a certain degree, and the winding coil can generate heat in the working process, so that a heat dissipation space is obtained, which is determined by the inherent characteristics of the winding coil. Therefore, in order to further shrink the magnetic head, it is necessary to change the way in which the conventional magnetic head uses the winding coil.
The integrated coil can also generate electromagnetic induction in the circuit board, and the volume of the integrated circuit board is much smaller than that of the winding coil, which can improve the possibility of further miniaturization of the magnetic head.
Disclosure of Invention
The invention aims to provide an integrated coil micro magnetic head, which is mainly used for solving the problem that the magnetic head uses a winding coil to prevent the miniaturization of the magnetic head.
The technical problem of the invention is mainly solved by the following technical scheme: comprises a shielding shell with an opening at the bottom end, wherein a bottom cover is fixed at the bottom of the shielding shell through screws, a magnetic core is arranged in the shielding shell, a magnetic core sleeve shaped like a Chinese character 'hui' is fixed in the shielding shell through screws, a supporting plate is fixed at the bottom of the magnetic core sleeve, the magnetic core is supported at the top of the supporting plate, a partition plate is arranged in the middle of the magnetic core sleeve, the magnetic core sleeves are respectively provided with one magnetic core at two sides of the partition plate, a cover plate is sleeved at the top of the magnetic core, the cover plate is fixed at the top end of the magnetic core sleeve through screws, a port is arranged in the middle of the top of the shielding shell, the port is penetrated at the top of the magnetic core, the partition plate also penetrates through the port, integrated coils are fixed at the bottoms of the supporting plates at two sides of the partition plate, every group the coil has two opposite spiral direction the coil, adjacent two-layer circuit board electric connection the spiral direction of coil is also opposite, adjacent two-layer circuit board the coil carries out electric connection through central counter bore or extreme point counter bore in turn, same position on each layer circuit board the coil all forms an electric circuit, integrated coil's bottom circuit board is equipped with a plurality of electrodes and a common electrode, the electric circuit that the coil formed begins in one the electrode ends in common electrode, electrode and common electrode are integrated in binding post jointly, the bottom is equipped with the line hole, binding post wears out the line hole, the shielding shell is equipped with wearing layer, shielding layer and high temperature resistant layer from outside to inside, the magnetic core cover with the baffle is equipped with shielding layer and high temperature resistant layer from outside to inside.
Preferably, a hollow interlayer is arranged in the middle of the partition board, so that heat generated by the magnetic core and the integrated coil can be conveniently discharged.
Preferably, a rubber gasket is arranged between the cover plate and the magnetic core. The convenient fixed magnetic core avoids apron and magnetic core rigidity contact to appear, with magnetic core fracture when preventing fixed apron.
Preferably, top end surfaces of the magnetic core and the partition plate are flush with a top end surface of the shielding shell.
Preferably, the wear-resistant layer is a carbon steel layer, the shielding layer is a silicon steel metal layer, and the high-temperature-resistant layer is a ceramic high-temperature-resistant layer.
Preferably, the side wall of the magnetic core sleeve is provided with a vent hole, and the support plate is also provided with a vent hole. The vent hole can facilitate heat dissipation.
Preferably, the central portion of the integrated coil is provided with a through hole, and the through hole is mainly used for heat dissipation.
Preferably, the integrated coil is provided with four layers of circuit boards, namely a coil layer I, a coil layer II, a coil layer III and a coil layer IV in sequence from bottom to top.
Preferably, the directions of the magnetic fields generated by the circuit boards of the integrated coils are the same, and the directions of the magnetic fields generated by the two integrated coils are opposite.
The invention has the beneficial effects that: the integrated circuit board type integrated coil is adopted to replace the traditional winding coil mode, so that the internal space of the magnetic head is saved, and the miniaturization design of the magnetic head is facilitated.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a top view of a component core sleeve of the present invention;
FIG. 4 is a cross-sectional view of a component core sleeve of the present invention;
FIG. 5 is a schematic view of a component integrated coil configuration of the present invention;
FIG. 6 is a schematic diagram of one configuration of the internal circuitry of the component integrated coil of the present invention;
a description of the reference numerals;
1. the magnetic core type coil comprises a shielding shell, 2 magnetic core sleeves, 3 supporting plates, 4 partition plates, 5 vent holes, 6 cover plates, 7 rubber gaskets, 8 magnetic cores, 9 integrated coils, 9a coil layers I, 9b coil layers II, 9c coil layers III, 9d coil layers IV, 11 wiring terminals, 12 screws, 13 bottom covers, 14 wire holes, 15 hollow partition layers, 16 end ports, 17 through holes, 18 coils, 19 central counter holes, 20 end point counter holes, 21 electrodes, 22 common electrodes, 23 wear-resistant layers, 24 shielding layers and 25 high-temperature resistant layers.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example 1
The integrated coil miniature magnetic head of the embodiment comprises a shielding shell 1 with an opening at the bottom end, a bottom cover 13 is fixed at the bottom of the shielding shell 1 through a screw, a magnetic core 8 is arranged in the shielding shell 1, a magnetic core sleeve 2 shaped like a Chinese character 'hui' is fixed in the shielding shell 1 through a screw 12, a supporting plate 3 is fixed at the bottom of the magnetic core sleeve 2, the magnetic core 8 is supported at the top of the supporting plate 3, a partition plate 4 is arranged in the middle of the magnetic core sleeve 2, two magnetic cores 8 are respectively arranged at two sides of the partition plate 4 of the magnetic core sleeve 2, a cover plate 6 is sleeved at the top of the magnetic core 8, a port 16 is arranged in the middle of the top of the shielding shell 1, the port 16 is penetrated through by the top of the magnetic core 8, the partition plate 4 also penetrates through the port 16, the integrated coils 9 are fixed at the bottoms of the supporting plates 3 at two sides of the partition plate 4, each group of coils 18 is provided with two coils 18 with opposite spiral directions, the spiral directions of the coils 18 electrically connected with two adjacent layers of circuit boards are also opposite, the coils 18 of the two adjacent layers of circuit boards are electrically connected alternately through a central counter bore 19 or an end point counter bore 20, the coils 18 at the same position on each layer of circuit board form an electrical loop, the bottom circuit board of the integrated coil 9 is provided with a plurality of electrodes 21 and a common electrode 22, the electrical loop formed by the coils 18 starts from one electrode 21 and ends at the common electrode 22, the electrodes 21 and the common electrode 22 are integrated on the wiring terminal 11 together, the bottom cover 13 is provided with a wire hole 14, the wiring terminal 11 penetrates out of the wire hole 14, the shielding shell 1 is provided with a wear-resistant layer 23, a shielding layer 24 and a high-temperature-resistant layer 25 from outside to inside, and the magnetic core sleeve 2 and the partition plate 4.
Wherein, the middle of the clapboard 4 is provided with a hollow interlayer 15, which is convenient for discharging the heat generated by the magnetic core 8 and the integrated coil 9.
Wherein, a rubber gasket 7 is arranged between the cover plate 6 and the magnetic core 8. Conveniently fix magnetic core 8, avoid apron 6 and magnetic core 8 rigid contact to appear, with 8 fracturing of magnetic core when preventing fixed apron 6.
Wherein, the top end surfaces of the magnetic core 8 and the partition plate 4 are all flush with the top end surface of the shielding shell 1.
Wherein, the wear-resistant layer 23 is a carbon steel layer, the shielding layer 24 is a silicon steel layer, and the high-temperature resistant layer 25 is a ceramic high-temperature resistant layer.
Wherein, the lateral wall of magnetic core cover 2 is equipped with air vent 5, and backup pad 3 also is equipped with air vent 5. The vent 5 can facilitate heat dissipation.
Wherein, the central part of the integrated coil 9 is provided with a through hole 17, and the through hole 17 is mainly used for heat dissipation.
Wherein, integrated coil 9 is equipped with coil layer I9 a, coil layer II 9b, coil layer III 9c, coil layer IV 9d four-layer circuit board from the bottom to the top in proper order.
The directions of the magnetic fields generated by the circuit boards of all layers of the integrated coils 9 are the same, and the directions of the magnetic fields generated by the two integrated coils 9 are opposite.
In specific use, the two magnetic cores 8 are inserted into the magnetic core sleeve 2, and then the cover plate 6 is used for fixing the magnetic cores 8 in the magnetic core sleeve 2. An integrated coil 9 is then fixed to the bottom of the support plate 3 at the bottom of each core 8. Then, the magnetic core case 2 with the magnetic core 8 fixed thereto is inserted into the shield case 1, and the magnetic core case 2 is fixed inside the shield case 1 with the screws 12. The bottom cover 13 is then fixed to the bottom of the shield case 1, and the connection terminals 11 are inserted through the wire holes 14 while the bottom cover 13 is fixed.
In this embodiment, the integrated coil 9 has four layers of circuit boards, which are a coil layer i 9a, a coil layer ii 9b, a coil layer iii 9c, and a coil layer iv 9d. A coil loop diagram is given in fig. 6. The circuit loop is as follows: coil layer I9 a-electrode 21U-left side coil 18-through center counterbore 19-coil layer II 9 b-left side coil 18-through end point counterbore 20-coil layer III 9 c-left side coil 18-through center counterbore 19-coil layer IV 9 d-left side coil 18-right side coil 18-through center counterbore 19-coil layer III 9 c-right side coil 18-through end point counterbore 20-coil layer II 9 b-right side coil 18-through center counterbore 19-coil layer I9 a-right side coil 18-common electrode 22 COM. The electrical circuit is characterized in that the electrical circuit starts from one electrode 21, then goes from the coil 18 at the bottom layer to the coil 18 at the upper layer by layer, and then goes back to the coil 18 at the bottom layer by layer, and finally comes out from the common electrode 22 uniformly. A plurality of groups of the electric loops are formed in the integrated coil 9, so that a magnetic induction magnetic field in the same direction is formed together.
While the foregoing embodiments are illustrative of the present invention, various modifications and changes may be readily made by those skilled in the art based upon the teachings and principles of this invention, which are intended to be limited not to the details of construction and methods herein shown, but rather to the preferred embodiments described, and therefore all equivalent modifications and changes in light of the above teachings are intended to be included within the scope of the present invention as defined in the appended claims.
Claims (9)
1. The integrated coil miniature magnetic head comprises a shielding shell (1) with an opening at the bottom end, wherein a bottom cover (13) is fixed at the bottom of the shielding shell (1) through a screw (12), a magnetic core (8) is arranged in the shielding shell (1), the integrated coil miniature magnetic head is characterized in that a magnetic core sleeve (2) shaped like a Chinese character 'hui' is fixed in the shielding shell (1) through the screw (12), a supporting plate (3) is fixed at the bottom of the magnetic core sleeve (2), the magnetic core (8) is supported at the top of the supporting plate (3), a partition plate (4) is arranged in the middle of the magnetic core sleeve (2), the magnetic core (8) is respectively arranged at two sides of the partition plate (4) by the magnetic core sleeve (2), a cover plate (6) is sleeved at the top of the magnetic core (8), the cover plate (6) is fixed at the top end of the magnetic core sleeve (2) through the screw, a port (, the top of the magnetic core (8) penetrates through the port (16), the partition plate (4) also penetrates through the port (16), integrated coils (9) are fixed at the bottoms of the supporting plates (3) on the two sides of the partition plate (4), the integrated coils (9) are multilayer circuit boards, a plurality of groups of coils (18) are etched on each layer of circuit board, the coils (18) are spiral, each group of coils (18) is provided with two coils (18) with opposite spiral directions, the spiral directions of the coils (18) electrically connected with the adjacent two layers of circuit boards are also opposite, the coils (18) of the adjacent two layers of circuit boards are alternately and electrically connected through a central counter bore (19) or an end point counter bore (20), the coils (18) at the same position on each layer of circuit board form an electric loop, and the circuit board at the bottom of the integrated coil (9) is provided with a plurality of electrodes (21) and a common electrode (22), the electric property return circuit that coil (18) formed begins one electrode (21) end in common electrode (22), electrode (21) and common electrode (22) are integrated in binding post (11) jointly, bottom (13) are equipped with line hole (14), binding post (11) are worn out line hole (14), shielding shell (1) is equipped with wearing layer (23), shielding layer (24) and high temperature resistant layer (25) from outside to inside, magnetic core cover (2) with baffle (4) are equipped with shielding layer (24) and high temperature resistant layer (25) from outside to inside.
2. An integrated coil micro head according to claim 1, characterized in that the spacer (4) is provided with a hollow spacer (15) in the middle.
3. An integrated coil micro head according to claim 1, characterized in that a rubber gasket (7) is provided between the cover plate (6) and the magnetic core (8).
4. An integrated coil micro head according to claim 1, wherein the top end faces of the core (8) and the spacer (4) are flush with the top end face of the shield case (1).
5. An integrated coil micro-head according to claim 1, wherein the wear layer (23) is a carbon steel layer, the shield layer (24) is a silicon steel metal layer, and the high temperature resistant layer (25) is a ceramic high temperature resistant layer (25).
6. An integrated coil micro head according to claim 1, wherein the side wall of the core housing (2) is provided with a vent hole (5) and the support plate (3) is also provided with a vent hole (5).
7. An integrated coil micro head according to claim 1, characterized in that the integrated coil (9) is provided with a through hole (17) in the middle.
8. An integrated coil micro head according to claim 1, wherein the integrated coil (9) is provided with four layers of a wiring board of a coil layer i (9a), a coil layer ii (9b), a coil layer iii (9c) and a coil layer iv (9d) in sequence from bottom to top.
9. An integrated coil micro head according to claim 1, characterized in that the directions of the magnetic fields generated by the circuit boards of the integrated coils (9) are the same, and the directions of the magnetic fields generated by the two integrated coils (9) are opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011457511.8A CN112382314A (en) | 2020-12-11 | 2020-12-11 | Integrated coil miniature magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011457511.8A CN112382314A (en) | 2020-12-11 | 2020-12-11 | Integrated coil miniature magnetic head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112382314A true CN112382314A (en) | 2021-02-19 |
Family
ID=74590667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011457511.8A Pending CN112382314A (en) | 2020-12-11 | 2020-12-11 | Integrated coil miniature magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112382314A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102833946A (en) * | 2011-06-16 | 2012-12-19 | 相互股份有限公司 | Multi-layer circuit board with coil structure capable of encircling embedded element and manufacturing method for multi-layer circuit board |
| CN204669713U (en) * | 2015-05-06 | 2015-09-23 | 深圳市同创鑫电子有限公司 | Soft or hard is in conjunction with multilayer circuit board |
| CN205692265U (en) * | 2016-06-16 | 2016-11-16 | 吴俊禹 | A kind of have the bill counter magnetic head adding magnetic function |
| CN107045110A (en) * | 2017-03-16 | 2017-08-15 | 北京腾锐视讯科技有限公司 | Place dipteron change rate of electromagnetic fields detection coil and detection sensor in side |
| CN209514732U (en) * | 2019-04-24 | 2019-10-18 | 吴俊禹 | A kind of anti-get rusty plus magnetic bill counter magnetic head |
-
2020
- 2020-12-11 CN CN202011457511.8A patent/CN112382314A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102833946A (en) * | 2011-06-16 | 2012-12-19 | 相互股份有限公司 | Multi-layer circuit board with coil structure capable of encircling embedded element and manufacturing method for multi-layer circuit board |
| CN204669713U (en) * | 2015-05-06 | 2015-09-23 | 深圳市同创鑫电子有限公司 | Soft or hard is in conjunction with multilayer circuit board |
| CN205692265U (en) * | 2016-06-16 | 2016-11-16 | 吴俊禹 | A kind of have the bill counter magnetic head adding magnetic function |
| CN107045110A (en) * | 2017-03-16 | 2017-08-15 | 北京腾锐视讯科技有限公司 | Place dipteron change rate of electromagnetic fields detection coil and detection sensor in side |
| CN209514732U (en) * | 2019-04-24 | 2019-10-18 | 吴俊禹 | A kind of anti-get rusty plus magnetic bill counter magnetic head |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5198647A (en) | Plural-coil non-contact ic card having pot cores and shielding walls | |
| EP0012910A1 (en) | Thin film magnetic heads | |
| US4432027A (en) | Magnetic head | |
| US5184103A (en) | High coupling transformer adapted to a chopping supply circuit | |
| WO1998015948A1 (en) | Toroidal thin film head | |
| US4825056A (en) | Thin-film electromagnetic transducer | |
| JP3742277B2 (en) | Magnetic recording transducer with electronic shield | |
| US6256170B1 (en) | Thin film magnetic head having closely spaced wires connecting head device with bonding pads | |
| US5072324A (en) | Thin film transducer/transformer assembly | |
| CN110289154A (en) | Vertical resonance transformer high current foot bit architecture | |
| JPH03232207A (en) | Non-contact type ic card system | |
| CN112382314A (en) | Integrated coil miniature magnetic head | |
| US6135782A (en) | Electrical compression connector for a disc drive | |
| US3316359A (en) | Transducer head utilizing electro-magnetic shielding for cross-talk elimination | |
| US20040100727A1 (en) | Thin film magnetic head having toroidal coil | |
| JP2006300915A (en) | Current sensor | |
| US3889295A (en) | Single-turn conductor pattern for microminiature core assemblies in a multitransducer head | |
| US4527212A (en) | Magnetic shield and multitrack magnetic head apparatus using same | |
| US6563674B1 (en) | Thin-film magnetic head | |
| CN106659032A (en) | Electronic equipment and metal casing thereof | |
| EP0457395B1 (en) | Thin-film magnetic head | |
| US6775098B2 (en) | Magnetic recording head with dielectric layer separating magnetic pole tips extensions from the zero throat coil insulator | |
| US6233123B1 (en) | Magnetic recording/reproducing apparatus | |
| CN215220478U (en) | Filtering inductance paster inductance | |
| CN215069587U (en) | Power inductor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210219 |