CN210516429U - Large-current integrated switching power supply transformer winding structure - Google Patents
Large-current integrated switching power supply transformer winding structure Download PDFInfo
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- CN210516429U CN210516429U CN201920681934.4U CN201920681934U CN210516429U CN 210516429 U CN210516429 U CN 210516429U CN 201920681934 U CN201920681934 U CN 201920681934U CN 210516429 U CN210516429 U CN 210516429U
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Abstract
The utility model discloses a heavy current integrated switching power supply transformer winding structure. The winding comprises an upper iron core, a lower iron core, a printed circuit board winding and a filament coated coil, wherein the printed circuit board winding and the filament coated coil can be arranged between the two iron cores, positioning grooves for positioning the printed circuit board winding and the filament coated coil are formed in the end faces of the inner sides of the iron cores, and the printed circuit board winding and the filament coated coil can be stacked and are positioned and installed between the two iron cores through the positioning grooves to form a whole winding structure. By adopting the structure, the winding structure does not need framework support, the stacked installation structure ensures that the thickness of the winding structure is ensured to form a flat structure, the utilization rate of an iron core window is high, the power density is high, the wire coated coil winding stacked with a printed circuit board can be suitable for large current and high power, and meanwhile, the winding structure has the advantages of a PCB winding transformer, is convenient for automatic production, has good consistency and high reliability, and also greatly reduces the overall production cost.
Description
Technical Field
The utility model relates to a switching power supply transformer winding structure, specifically speaking are heavy current integrated switching power supply transformer winding structure.
Background
With the development and application of silicon carbide and gallium nitride of electronic switching power devices, the switching power supply is developed towards higher frequency and higher power density, and the switching power supply also has to be developed for high frequency, high power density, flattening and integration as a transformer of the heart of the switching power supply. The existing conventional switching power supply transformer adopts a framework as a winding support, and enameled wires are used for winding transformer windings on the framework, the consistency of finished products is controlled by winding the products by equipment or manpower, and insulation materials are needed to isolate and insulate the windings, so that the framework and the insulation materials occupy a large part of the utilization rate of a transformer core window; the product consistency is poor, the utilization rate of an iron core is low, the power density is low, the labor cost is high, the automatic production is not suitable, in addition, a planar integrated switching power supply transformer with a primary winding and a secondary winding of a Printed Circuit Board (PCB) is adopted, however, due to the technical bottleneck of etching the copper thickness of the PCB, the copper thickness is too thick, the production is difficult or the production cannot be carried out, and the cost is too high, so that the development of the large-current high-power switching power supply transformer is not suitable.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a production degree of automation is high, the product uniformity is good and be fit for the powerful heavy current of heavy current and integrate switching power supply transformer winding structure.
In order to solve the technical problem, the utility model discloses a heavy current integrates switching power supply transformer winding structure, including two upper and lower iron cores and can settle printed circuit board winding and the silk envelope coil between two iron cores, the medial surface of iron core is provided with and is used for carrying out the constant head tank of fixing a position to printed circuit board winding and silk envelope coil, and printed circuit board winding and silk envelope coil can stack and form whole winding structure through the constant head tank location installation between two iron cores.
The printed circuit board winding is at least provided with one coil, the silk envelope coil is at least provided with one disc, and the printed circuit board winding and the silk envelope coil are stacked and installed in the two iron cores.
The middle of the end face of the inner side of the iron core is provided with a positioning bulge, the middle of the printed circuit board winding is provided with a positioning hole, and the printed circuit board winding is installed in a matched mode with the positioning bulge of the iron core through the positioning hole.
The wire coating coil is characterized in that an annular groove for accommodating a wire coating coil is formed in the end face of one side of the printed circuit board winding, and the wire coating coil is arranged in the annular groove of the printed circuit board winding.
The positioning hole of the printed circuit board winding is provided with a positioning sleeve extending towards one side of the ring groove, and the positioning sleeve is positioned at the center of the ring groove and can position the filament coated coil.
The two printed circuit board windings are arranged, the filament coated coil is provided with two discs, and one iron core passes through one of the printed circuit board windings, the two disc filament coated coils and the other printed circuit board winding in sequence and then is installed with the other iron core in an involutory mode.
After the structure is adopted, the winding structure is designed into a primary coupling mode that the wire film coated winding and the printed circuit board are stacked mutually, and the structures of the printed circuit board winding, the wire coated coil and the iron core are reasonably designed to form a flat integrated winding structure, the winding structure does not need framework support, the stacked installation structure ensures that the thickness of the winding structure is ensured to form a flat structure, the utilization rate of an iron core window is high, the power density is high, the wire coated coil winding stacked with the printed circuit board can be suitable for large current and high power, the advantages of a PCB winding transformer are achieved, the automatic production is convenient, the consistency is good, the reliability is high, and the overall production cost is greatly reduced.
Drawings
Fig. 1 is an exploded view of the winding structure of the high-current integrated switching power supply transformer of the present invention;
fig. 2 is the utility model discloses the whole dress picture of large current integrated switching power supply transformer winding structure.
Detailed Description
The winding structure of the high-current integrated switching power supply transformer of the present invention is further described in detail with reference to the accompanying drawings and the detailed description.
The first embodiment is as follows:
the winding structure of the large-current integrated switching power supply transformer comprises an upper iron core 1 and a lower iron core 1 which are made of flat magnetic cores, and a printed circuit board winding 2 and a wire coated coil winding 3 which can be arranged between the two iron cores, wherein the inner side end surface of the iron core 1 is provided with a positioning groove 4 for positioning the printed circuit board winding 2 and the wire coated coil 3, as can be seen from the figure, the middle part of the inner side end surface of the iron core 1 is provided with a positioning bulge 5, the middle part of the printed circuit board winding 2 is provided with a positioning hole 6, one side end surface of the printed circuit board winding 2 is provided with a ring groove 7 for arranging the wire coated coil, the positioning hole of the printed circuit board winding 2 is provided with a positioning sleeve 8 extending towards one side of the ring groove, the center of the wire coated coil 3 is provided with a through hole, when the wire coated coil is installed, therefore, the wire coated coil and the printed circuit board winding are in positioning fit, positioning protrusions on one side of positioning grooves of the upper iron core and the lower iron core 1 can stretch into the positioning sleeves 8 through the positioning holes of the printed circuit board winding 2 to realize positioning and installation of the printed circuit board winding 2 and the wire coated coil 3 to form a whole winding structure, and through the structural design, the printed circuit board winding 2 and the wire coated coil 3 are stacked and installed in the two iron cores, wherein the wire coated wire of the wire coated coil 3 is suitable for high frequency, meanwhile, an outer coated insulating film is also good in insulating treatment effect, the wire coated wire is matched with the printed circuit board winding to realize large current suitability and high power, and meanwhile, the wire coated wire is convenient for automatic production, good in consistency, high in reliability and capable of.
Example two:
the winding structure of the large-current integrated switching power supply transformer comprises an upper iron core 1, a lower iron core 1, two printed circuit board windings 2 and a disc silk film-coated coil winding 3 which can be arranged between the two iron cores, wherein the inner side end faces of the two iron cores 1 are respectively provided with a positioning groove 4 for positioning the printed circuit board windings 2 and the silk film-coated coil 3, the positioning groove forms an iron core window, as can be seen from the figure, the middle parts of the inner side end faces of the two iron cores 1 are respectively provided with a positioning bulge 5, the middle parts of the two printed circuit board windings 2 are respectively provided with a positioning hole 6, one side end face of at least one of the printed circuit board windings 2 is provided with an annular groove 7 for arranging the silk film-coated coil, when the two printed circuit board windings 2 are respectively provided with an annular groove, the depth of the annular groove, at least a positioning sleeve 8 extending towards one side of the ring groove is arranged at the positioning hole of one printed circuit board winding 2, when the positioning sleeve 8 is arranged at the positioning hole of two printed circuit board windings 2, the length of the positioning sleeve meets the condition that the two printed circuit board windings 2 can be oppositely assembled, a through hole is arranged at the center of the silk envelope coil 3, when in installation, the silk envelope coil is arranged in the ring groove of the two printed circuit board windings and is matched with the positioning sleeve by utilizing the through hole for installation and positioning, thereby the silk envelope coil is positioned and installed in the two printed circuit board windings, the positioning bulges at one side of the positioning grooves of the upper and lower iron cores 1 can extend into the positioning sleeve 8 through the positioning hole of the two printed circuit board windings 2 to realize the positioning and installation of the printed circuit board windings 2 and the silk envelope coil 3 to form a whole winding structure, through the structural, the printed circuit board winding 2 and the silk envelope coil 3 are stacked and installed in two iron cores.
Example three:
as shown in fig. 1 and fig. 2, the winding structure of the large-current integrated switching power supply transformer of the embodiment includes an upper iron core 1, a lower iron core 1, two printed circuit board windings 2 and two wire-coiling film-coated coil windings 3 which can be arranged between the two iron cores, the inner side surfaces of the two iron cores 1 are both provided with a positioning groove 4 for positioning the printed circuit board windings 2 and the wire-coating film coils 3, the positioning groove forms an iron core window, as can be seen from the figure, the middle parts of the inner side surfaces of the two iron cores 1 are both provided with a positioning protrusion 5, the middle parts of the two printed circuit board windings 2 are both provided with a positioning hole 6, one side end surface of the two printed circuit board windings 2 is both provided with a ring groove 7 for arranging the wire-coating film coils, the positioning holes of the two printed circuit board windings 2 are both provided with a, during installation, the two wire coil coated coils are respectively arranged in the ring grooves of the two printed circuit board windings and are matched with the respective positioning sleeves through the respective through holes for installation and positioning, so that the two wire coil coated coils are positioned and installed in the two printed circuit board windings, the positioning protrusions on one sides of the positioning grooves of the upper iron core 1 and the lower iron core 1 can extend into the positioning sleeves 8 through the positioning holes of the two printed circuit board windings 2 to realize the positioning and installation of the printed circuit board windings 2 and the wire coated coils 3 to form a whole winding structure, and through the structural design, the printed circuit board windings 2 and the wire coated coils 3 are overlapped and installed in the two iron cores.
Claims (6)
1. The utility model provides a large current integrates switching power supply transformer winding structure which characterized in that: including two upper and lower iron cores (1) and can settle printed circuit board winding (2) and silk capsule coil (3) between two iron cores, the medial surface of iron core (1) is provided with constant head tank (4) that are used for going on fixing a position printed circuit board winding (2) and silk capsule coil (3), printed circuit board winding (2) and silk capsule coil (3) can stack and fix a position through constant head tank (4) and install and form whole winding structure between two iron cores.
2. A high-current integrated switching power supply transformer winding structure according to claim 1, characterized in that: the printed circuit board winding (2) is at least provided with one coil, the silk envelope coil (3) is at least provided with one disc, and the printed circuit board winding (2) and the silk envelope coil (3) are stacked and installed in the two iron cores.
3. A high-current integrated switching power supply transformer winding structure according to claim 1 or 2, characterized in that: the middle of the inner side end face of the iron core (1) is provided with a positioning bulge (5), the middle of the printed circuit board winding (2) is provided with a positioning hole (6), and the printed circuit board winding (2) is installed in a matched mode with the positioning bulge of the iron core through the positioning hole.
4. A high-current integrated switching power supply transformer winding structure according to claim 3, characterized in that: one side end face of the printed circuit board winding (2) is provided with an annular groove (7) for accommodating a wire coated coil, and the wire coated coil (3) is arranged in the annular groove (7) of the printed circuit board winding.
5. A high-current integrated switching power supply transformer winding structure according to claim 4, characterized in that: locating hole department of printed circuit board winding (2) is provided with position sleeve (8) to annular one side extension, position sleeve (8) are located the center of annular and can fix a position silk diolame coil.
6. A high-current integrated switching power supply transformer winding structure according to claim 1, 2, 4 or 5, characterized in that: the two printed circuit board windings (2) are arranged, the silk film-coated coil (3) is provided with two discs, and one iron core passes through one of the printed circuit board windings, the two disc silk film-coated coils and the other printed circuit board winding in sequence and then is installed with the other iron core in an involutive mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920681934.4U CN210516429U (en) | 2019-05-14 | 2019-05-14 | Large-current integrated switching power supply transformer winding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920681934.4U CN210516429U (en) | 2019-05-14 | 2019-05-14 | Large-current integrated switching power supply transformer winding structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210516429U true CN210516429U (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920681934.4U Active CN210516429U (en) | 2019-05-14 | 2019-05-14 | Large-current integrated switching power supply transformer winding structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210516429U (en) |
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2019
- 2019-05-14 CN CN201920681934.4U patent/CN210516429U/en active Active
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