CN116092775A - Double-framework reinforced insulation combined type switching power supply transformer - Google Patents
Double-framework reinforced insulation combined type switching power supply transformer Download PDFInfo
- Publication number
- CN116092775A CN116092775A CN202211396085.0A CN202211396085A CN116092775A CN 116092775 A CN116092775 A CN 116092775A CN 202211396085 A CN202211396085 A CN 202211396085A CN 116092775 A CN116092775 A CN 116092775A
- Authority
- CN
- China
- Prior art keywords
- primary
- wire hanging
- lead
- winding
- wire
- 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
- 238000009413 insulation Methods 0.000 title claims abstract description 21
- 238000004804 winding Methods 0.000 claims abstract description 92
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 12
- 230000000694 effects Effects 0.000 abstract description 10
- 238000002955 isolation Methods 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 230000002708 enhancing effect Effects 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/022—Encapsulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/04—Leading of conductors or axles through casings, e.g. for tap-changing arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
The invention relates to the technical field of switching power supply transformers, in particular to a double-framework reinforced insulation combined switching power supply transformer which comprises a winding framework and a magnetic core group arranged on the winding framework, wherein a primary wire hanging part, a secondary wire hanging part and a primary pin support are respectively arranged on the winding framework; according to the invention, the insulating shell is arranged outside the assembly body of the winding framework and the magnetic core group, so that the winding and the magnetic core group can be separated from the outside under the action of the insulating shell, the insulating effect of the power transformer is enhanced, and the whole volume of the transformer is reduced under the isolation requirement of the safety standard.
Description
Technical Field
The invention relates to the technical field of switching power supply transformers, in particular to a double-framework reinforced insulation combined switching power supply transformer.
Background
The switching power supply transformer is a high-frequency electric energy conversion device, and has the functions of insulation and power transmission in addition to the voltage conversion function of a common transformer in a circuit, and generally comprises a magnetic core, a coil wound on the magnetic core and pin terminals arranged on the magnetic core, wherein the end part of the coil is welded with the corresponding pin terminals for use.
At present, in order to enhance the insulation capability of a power transformer and improve the safety performance of the power transformer, the prior art generally adopts a mode of increasing a winding framework and arranging an insulation layer on a winding to prolong the creepage distance and enlarge the electric gap, thereby improving the safety performance of the transformer; however, as electronic products are miniaturized and miniaturized, the installation space reserved for the power transformer on the power panel is flattened and narrowed, and the operation mode is difficult to meet the requirements of miniaturization and microminiaturization of the current electronic products while realizing the creepage distance and the electric gap of the transformer.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides the double-framework reinforced insulation combined type switch power supply transformer, which can reduce the whole volume of the transformer while enhancing the insulation strength of the transformer and meet the requirements of miniaturization and microminiaturization of electronic products.
The invention solves the technical problems by adopting the following scheme: the utility model provides a double-skeleton reinforced insulation combined type switching power supply transformer, includes wire winding skeleton and installs the magnetic core group on wire winding skeleton, be equipped with elementary string portion, secondary string portion and elementary pin support on the wire winding skeleton respectively, insulating housing is equipped with the primary opening that is used for avoiding elementary string portion and elementary pin support with the corresponding one side of elementary string portion and elementary pin support, primary opening extends to insulating housing bottom and pierces through the bottom plate, insulating housing lateral wall department is equipped with the lead structure that is used for the lead-out wire of secondary string portion department to draw forth.
Further, the lead structure comprises a secondary opening for avoiding a secondary wire hanging part and a lead channel for leading out a lead wire of a secondary winding, wherein the secondary opening is arranged at the top end of the side wall of the insulating shell, the side wall below the secondary opening is concave and forms the lead channel, and a lead hole is formed in the bottom of the lead channel.
Further, the lead structure comprises a lead groove for leading out the secondary winding to the outer side of the insulating shell and a lead block for connecting the secondary winding, wherein the lead groove is arranged at the top of the side wall of the insulating shell, the lead block is arranged at the side wall of the insulating shell below the lead groove, and a lead hole is formed in the lead block.
Further, the number of the lead grooves corresponds to the number of the lead holes.
Further, the winding framework comprises a winding post and end plates arranged at two ends of the winding post, the primary wire hanging part, the secondary wire hanging part and the primary lead wire support are respectively arranged at the edges of the end plates, and primary wire hanging baffles surrounding the primary wire hanging part, secondary wire hanging baffles surrounding the secondary wire hanging part and support baffles surrounding the primary lead wire support are respectively arranged at the positions where the end plates are connected with the primary wire hanging part, the secondary wire hanging part and the primary lead wire support.
Further, the magnetic core group is respectively provided with a primary avoidance port for avoiding the primary wire hanging part and the primary pin support and a secondary avoidance port for avoiding the secondary wire hanging part, the primary wire hanging baffle and the support baffle are embedded in the primary avoidance port, and the secondary wire hanging baffle and the lead channel are embedded in the secondary avoidance port.
Further, a plurality of connecting blocks are arranged on the primary pin support, and primary pins are arranged at the bottoms of the connecting blocks; the primary wire hanging part comprises a plurality of primary wire hanging posts which are equidistantly arranged, a primary wire hanging groove is formed between two adjacent primary wire hanging posts, and one primary wire hanging post is provided with a wiring pin.
Further, the secondary wire hanging part is provided with secondary wire hanging grooves, and the number of the wire leading holes corresponds to that of the secondary wire hanging grooves.
Further, the insulating housing is adapted to the structure of the magnetic core group.
In summary, the beneficial effects of the invention are as follows:
1. according to the invention, the insulating shell is arranged outside the assembly body of the winding framework and the magnetic core group, so that the winding on the winding framework and the magnetic core group can be separated from the outside under the action of the insulating shell, the insulating effect of the power transformer is enhanced, and the whole volume of the transformer is reduced under the isolation requirement of the safety standard.
2. According to the invention, the lead structure is arranged on the side wall of the insulating shell corresponding to the secondary wire hanging part, so that the outgoing wire of the secondary winding can be led out of the insulating shell through the lead structure and then connected with the load end of the switching power supply, the isolation effect of the insulating shell on the winding is increased, and the whole volume of the transformer can be further reduced.
The foregoing description is only an overview of the technical solution of the present invention, and may be implemented according to the content of the specification in order to make the technical means of the present invention more clearly understood, and in order to make the above and other objects, features and advantages of the present invention more clearly understood, the following specific preferred embodiment is given by way of the following detailed description in conjunction with the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of a first embodiment;
FIG. 2 is an exploded view of the first embodiment;
FIG. 3 is a schematic structural diagram of a bobbin according to an embodiment;
FIG. 4 is a schematic diagram of an embodiment of an insulating housing;
FIG. 5 is a schematic diagram of a square power transformer according to an embodiment;
FIG. 6 is an exploded view of a power transformer of an embodiment in a square configuration;
FIG. 7 is a schematic diagram of a power transformer with a polygonal structure according to an embodiment;
FIG. 8 is an exploded view of a power transformer with a polygonal structure according to an embodiment;
FIG. 9 is a schematic diagram of a power transformer with a further enlarged primary opening;
fig. 10 is an exploded view of the power transformer with the primary opening further enlarged;
FIG. 11 is a schematic diagram of a second embodiment;
FIG. 12 is an exploded view of a second embodiment;
fig. 13 is a schematic structural view of a third embodiment;
FIG. 14 is an exploded view of a third embodiment;
FIG. 15 is a schematic view of the structure of the lead structure when the secondary hanging wire position is set correspondingly;
FIG. 16 is an exploded view of the lead structure as it corresponds to the secondary wire hanging location;
FIG. 17 is a schematic diagram of a structure in which the lead structure and the secondary wire hanging portion are not disposed in correspondence;
fig. 18 is an exploded view of the lead structure when the secondary wire hanging portion is not positioned correspondingly.
In the figure: 1. a winding framework; 11. a primary wire hanging part; 111. primary string hanging posts; 112. primary wire-hanging slot; 113. a wiring pin; 12. a secondary wire hanging part; 121. a secondary wire hanging groove; 13. a primary pin holder; 131. a connecting block; 132. a primary stitch; 14. a winding post; 15. an end plate; 151. primary wire hanging baffle plates; 152. a secondary wire hanging baffle plate; 153. a bracket baffle; 2. a magnetic core group; 21. a primary avoidance port; 22. a secondary avoidance port; 23. a top magnetic core; 24. a lower magnetic core; 3. an insulating housing; 31. a primary opening; 32. a lead structure; 321. a secondary opening; 322. a lead path; 323. a lead hole; 324. a wire slot; 325. and a lead block.
Detailed Description
In order that the invention may be more readily understood, a further description of the invention will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
It should be noted that, as used herein, the terms "center," "upper," "lower," "front," "rear," "left," "right," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Unless otherwise indicated, the meaning of "a plurality" is two or more.
Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
Embodiment one:
as shown in fig. 1 to 4, a double-framework reinforced insulation combined type switching power supply transformer comprises a winding framework 1 and a magnetic core group 2 arranged on the winding framework 1, wherein, as shown in fig. 2 and 3, a primary wire hanging part 11, a secondary wire hanging part 12 and a primary pin bracket 13 are arranged on the winding framework 1, and when outgoing wires of windings wound on the winding framework 1 are connected, the primary wire hanging part 11 or the secondary wire hanging part 12 can be bypassed to prolong the creepage distance, so that the safety distance is ensured; as shown in fig. 1, an insulating housing 3 is installed outside the assembly body of the winding framework 1 and the magnetic core group 2 in the embodiment, wherein the insulating housing 3 is of a non-covered box structure, and the assembly body of the winding framework 1 and the magnetic core group 2 can be directly inserted into the insulating housing 3 from the top of the insulating housing 3, so that the bottoms and the side walls of the winding framework 1 and the magnetic core group 2 are surrounded by the insulating housing 3, thereby enhancing the insulating effect of the power transformer in the embodiment; meanwhile, the insulation effect of the power transformer is enhanced by the mode of arranging the insulation shell 3, the assembly body of the winding framework 1 and the magnetic core group 2 can be embedded in the insulation bottom shell, and compared with the mode of heightening the winding framework 1 in the prior art, the size of the power transformer is reduced, so that the miniaturization design of the power transformer is realized, and the installation and the use of the power transformer are facilitated.
As shown in fig. 3, the winding framework 1 in the embodiment is longitudinally installed, and comprises a winding post 14 and end plates 15 respectively arranged at the upper end and the lower end of the winding post 14, a coil is wound on the winding post 14 and limited by the two end plates 15, so that the voltage-transformation and voltage-stabilizing function of the transformer is realized, and the two end plates 15 are respectively named as an upper end plate 15 and a lower end plate 15 according to the upper position and the lower position for convenience of understanding; in order to lead out the outgoing lines of the primary winding and the secondary winding and connect the outgoing lines with the circuit board, the primary wire hanging part 11 and the secondary wire hanging part 12 of this embodiment are both arranged at the edge of the upper end plate 15, and the primary pin bracket 13 is arranged on the lower end plate 15 and corresponds to the primary wire hanging part 11, so that the outgoing lines of the primary winding can be led out through the primary wire hanging part 11 and connected to the primary wire hanging part 11 to realize connection with the power end of the switching power supply, and the outgoing lines of the secondary winding can be led out through the secondary wire hanging part 12 to connect with the load end of the switching power supply.
As shown in fig. 4, in order to enable the bobbin 1 to be successfully fitted and mounted in the insulating housing 3, the present embodiment provides a primary opening 31 at the side wall of the insulating housing 3, wherein the primary opening 31 of the present embodiment extends from the top of the side wall of the insulating housing 3 to the bottom plate of the insulating housing 3 and penetrates the bottom plate, so that the primary wire hanging parts 11 with the same width and corresponding positions can be fitted in the primary opening 31 when the primary pin brackets 13 are mounted, thereby realizing the mounting of the insulating housing 3;
the position of the insulating housing 3 corresponding to the secondary wire hanging part 12 is provided with a lead structure 32 for leading out the lead wire of the secondary winding, wherein the lead structure 32 comprises a secondary opening 321 and a lead channel 322, and the lead wire of the secondary winding can be led out of the insulating housing 3 from the secondary opening 321 and connected with a circuit board through the lead channel 322; the secondary opening 321 of the embodiment is disposed at the top end of the side wall of the insulating housing 3 and has the same width as the secondary wire hanging portion 12, so that when the winding framework 1 is installed, the secondary wire hanging portion 12 located at the edge of the upper end plate 15 can be embedded in the secondary opening 321, and after the outgoing wire of the secondary winding bypasses the secondary wire hanging portion 12, the outgoing wire can be led out from the secondary opening 321 to the outside of the insulating housing 3 for connection, thereby enhancing the insulating effect of the embodiment; the lead channel 322 is disposed below the secondary opening 321, where a side wall of the insulating housing 3 corresponding to the secondary opening 321 (i.e., a side wall below the secondary opening 321) is concave and forms the lead channel 322, and when the outgoing line of the secondary winding is connected, the outgoing line bypasses the secondary wire hanging portion 12 and extends to the bottom of the insulating housing 3 along the lead channel 322, so as to be connected with the load end of the switching power supply; the design of the lead channel 322 ensures that the winding framework 1 and the magnetic core group 2 at the position of the secondary wire hanging part 12 are also surrounded by the insulating shell 3, thereby increasing the surrounding area of the insulating shell 3, further improving the insulating strength, and the setting of the lead channel 322 ensures that the outgoing wires of the secondary winding can be embedded in the lead channel 322 when being connected, and avoids the influence of abrasion caused by the contact of the outgoing wires of the secondary winding with other electronic elements when being connected on the normal use of the power transformer.
As shown in fig. 4, a lead hole 323 is formed at the bottom of the lead channel 322 in the embodiment, and the lead wire of the secondary winding is led out along the lead channel 322, then inserted into the lead hole 323, and connected with the load end of the switching power supply through the lead hole 323, wherein the lead wire of the secondary winding is fixed by the lead hole 323, so that the production process of the power transformer in the embodiment can be reduced, and the production cost can be reduced.
As shown in fig. 1 and 2, the magnetic core group 2 of the present embodiment is provided with a primary avoidance opening 21 for avoiding the primary wire hanging portion 11 and the primary pin support 13 and a secondary avoidance opening 22 for avoiding the secondary wire hanging portion 12, so that the installation of the magnetic core group 2 is facilitated, the width of the primary avoidance opening 21 of the present embodiment is the same as the width of the primary wire hanging portion 11 and the primary pin support 13, the width of the secondary avoidance opening 22 is the same as the width of the secondary wire hanging portion 12, so that when the magnetic core group 2 is installed, the primary wire hanging portion 11 and the primary pin support 13 can be embedded in the primary avoidance opening 21, and the secondary wire hanging portion 12 is embedded in the secondary avoidance opening 22, thereby realizing the installation of the magnetic core group 2; the magnetic core group 2 of this embodiment includes symmetrical upper magnetic core 23 and lower magnetic core 24, and the primary dodge mouth 21 and the secondary dodge mouth 22 all set up in upper magnetic core 23 and lower magnetic core 24's lateral wall department, and extend and pierce through the bottom plate, when upper magnetic core 23 and lower magnetic core 24 are installed to wire winding skeleton 1, upper magnetic core 23 and lower magnetic core 24 are installed to wire winding skeleton 1 from wire winding skeleton 1's upper end and lower extreme respectively, make primary string hanging portion 11 and primary pin support 13 pass the primary dodge mouth 21 of upper magnetic core 23 and lower magnetic core 24 respectively, secondary string hanging portion 12 passes the secondary dodge mouth 22 of upper magnetic core 23 and lower magnetic core 24, thereby make upper magnetic core 23 and lower magnetic core 24 make up 2 and form magnetic core group 2 and surround outside wire winding skeleton 1, can reduce the magnetic leakage, improve the power density of magnetic core group 2, and then improve the performance of transformer.
As shown in fig. 2 and 3, in this embodiment, the positions where the upper end plate 15 is connected to the primary wire hanging portion 11 and the secondary wire hanging portion 12 are respectively provided with a primary wire hanging baffle 151 surrounding the primary wire hanging portion 11 and a secondary wire hanging baffle 152 surrounding the secondary wire hanging portion 12, the positions where the lower end plate 15 is connected to the primary pin support 13 are provided with a support baffle 153 surrounding the secondary pin support, after the magnetic core group 2 is installed, the primary wire hanging baffle 151 and the support baffle 153 are respectively embedded in the primary avoidance openings 21 of the upper magnetic core 23 and the lower magnetic core 24, and the secondary wire hanging baffle 152 and the wire leading channel 322 are respectively embedded in the secondary avoidance openings 22, so that the stability after the upper magnetic core 23 and the lower magnetic core 24 are installed can be improved, and the arrangement of the primary wire hanging baffle 151 and the support baffle 153 can also prolong the creepage distance between the outgoing wires of the primary winding and the outgoing wires of the secondary winding, thereby ensuring the safety requirements of the transformer.
As shown in fig. 3, the primary pin bracket 13 of the present embodiment is provided with a plurality of connection blocks 131, each connection block 131 is equidistantly arranged, and the bottom of each connection block 131 is provided with a primary pin 132, so that after the outgoing line of the primary winding is led out from the primary wire hanging part 11, the outgoing line can be directly connected to the primary pin 132 to realize connection with the power supply end of the switching power supply; the primary pins 132 of the embodiment are staggered with each other, so that the space occupied by the primary pins 132 can be reduced, and the size of the switching power supply transformer can be reduced.
The primary wire hanging part 11 of the embodiment comprises a plurality of primary wire hanging posts 111 which are equidistantly arranged, and a primary wire hanging groove 112 is formed between two adjacent primary wire hanging posts 111, so that when the outgoing wires of each primary winding are connected, the outgoing wires can respectively bypass each primary wire hanging post 111 to be embedded in the primary wire hanging groove 112 and then connected to the primary pins 132, the creepage distance of the outgoing wires of the primary winding is prolonged, and the safety requirements are ensured; one primary string column 111 of the embodiment is further provided with a wiring pin 113 which is horizontally arranged, so that in a part of special circuits, an outgoing line of a primary winding can be connected to the primary string column 111 for connection, and the primary string column can also play a role in fixed installation, and the embodiment is installed in a corresponding circuit; meanwhile, in order to avoid interference with connection of the connection pins 113 to the circuit board, as shown in fig. 9 and 10, the upper end portion of the primary opening 31 in the present embodiment may be further enlarged, so that the side wall close to the circuit board may be exposed when the connection pins 113 are connected, thereby avoiding influence on normal installation of the connection pins 113 due to the thickness of the insulating housing 3.
The secondary wire hanging part 12 of the embodiment is provided with a plurality of secondary wire hanging grooves 121, when the outgoing wires of the secondary winding are connected, the secondary wire hanging grooves 121 are bypassed firstly, and then the secondary wire hanging grooves are connected to the load end of the power switch along the wire leading channel 322, so that the creepage distance of the power switch is prolonged; meanwhile, the lead channels 322 also protect the lead wires of the secondary winding, so that the exposed lead wires of the secondary winding are prevented from being worn; the number of the lead holes 323 in the embodiment corresponds to the number of the secondary winding grooves 121, so that the outgoing lines of the secondary winding can be respectively led out from the primary winding grooves 112 and spliced in the lead holes 323 for connection.
As shown in fig. 4 to 8, in order to be mounted in circuits of various structures, the magnetic core assembly 2 of the present embodiment has various structures, and the insulating housing 3 of the present embodiment is configured with the structure of the magnetic core assembly 2, so that the magnetic core assembly 2 of various structures can be surrounded by the insulating housing 3 to improve the insulating capability thereof.
Embodiment two:
as shown in fig. 11 to 12, the lead structure 32 of the second embodiment is different from the first embodiment in that the lead structure 32 of the second embodiment includes a lead groove 324 and a lead block 325, wherein the lead groove 324 is disposed at the top of the insulating housing 3 and corresponds to the secondary wire hanging groove 121 on the secondary wire hanging portion 12, the lead block 325 is provided with a lead hole 323, and after the outgoing wire of the secondary winding is wound out from the secondary wire hanging groove 121, the outgoing wire can be led out to the outside of the insulating housing 3 through the lead groove 324, and then connected to the load end of the circuit board through the lead hole 323 on the lead block 325, so that the same effect and function as those of the first embodiment can be obtained.
Embodiment III:
as shown in fig. 13 to 14, the difference from the first embodiment and the second embodiment is that the winding frame 1 of the third embodiment is laterally disposed, two end plates 15 are respectively disposed at two ends of the winding post 14 that is laterally disposed, for convenience of understanding, the two end plates 15 are respectively named as a left end plate 15 and a right end plate 15 according to left and right positions, the primary wire hanging portion 11 and the primary pin support 13 are respectively disposed on the left end plate 15 and are correspondingly disposed up and down, the secondary wire hanging portion 12 is disposed on the right end plate 15 and is correspondingly disposed to the position of the primary wire hanging portion 11, when the insulating housing 3 is mounted by plugging up from the bottom end of the winding frame 1, the primary wire hanging portion 11 and the primary pin support 13 can be embedded in the primary opening 31, and the secondary wire hanging portion 12 is embedded in the secondary opening 321, so as to avoid interference with the mounting of the insulating housing 3, so that the embodiment can achieve the same insulating effect as the first embodiment and reduce the overall volume; meanwhile, two magnetic cores of the third embodiment are respectively inserted into the winding framework 1 from the left end and the right end of the winding framework 1 to form a magnetic core group 2, and surround the winding framework 1, and when the insulating housing 3 of the third embodiment is installed by being inserted into the outside of the winding framework 1 from the bottom plate upwards, the side wall of the insulating housing 3 after installation can fix the magnetic core group 2, so that the third embodiment can improve the installation stability of the magnetic core group 2 besides realizing the functions of the first embodiment and the second embodiment, and the third embodiment can be suitable for being used in switching power supplies with various types and specifications.
As shown in fig. 15 to 18, the lead structure 32 of the present embodiment may be disposed on a side wall of the insulating housing 3 corresponding to the secondary wire hanging portion 12, or may be disposed on a side wall of the insulating housing 3 not corresponding to the secondary wire hanging portion 12, wherein, as shown in fig. 17 and 18, the lead structure 32 is disposed on a side wall of the insulating housing 3 not corresponding to the secondary wire hanging portion 12, so that the secondary winding led out of the insulating housing 3 through the lead structure 32 of the present embodiment may be connected to a circuit from a side of the insulating housing 3 not corresponding to the secondary wire hanging portion 12, thereby making the present embodiment applicable to various circuits, and the user may practically use the lead structure according to actual needs, thereby expanding the application range of the present embodiment;
meanwhile, as shown in fig. 15 to 18, pin holes are further formed at positions corresponding to the primary pin brackets 13 at the bottom of the insulating housing 3 in the embodiment, so that after the insulating housing 3 is sleeved on the assembly of the winding framework 1 and the magnetic core group 2, the primary pins 132 can be plugged into the pin holes and extend out of the insulating housing 3 through the pin holes to be connected with the circuit board, and thus, the primary pins 132 can be corrected so as to be connected with the circuit board, and meanwhile, the installation strength of the insulating housing 3 and the assembly of the winding framework 1 and the magnetic core group 2 can be improved.
In summary, the working principle of this embodiment is as follows: according to the embodiment, the insulating shell 3 is arranged outside the assembly body of the winding framework 1 and the magnetic core group 2, so that the winding on the winding framework 1 and the magnetic core group 2 can be separated from the outside under the action of the insulating shell 3, the insulating effect of the power transformer is enhanced, and the whole volume of the transformer is reduced under the isolation requirement of the safety standard; meanwhile, in the embodiment, the lead structure 32 is arranged on the side wall of the insulating housing 3 corresponding to the secondary wire hanging part 12, so that the outgoing wire of the secondary winding can be connected with the load end of the switching power supply through the lead structure 32, the isolation effect of the insulating housing 3 on the winding is improved, and the whole volume of the transformer is further reduced.
The above examples are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, but any insubstantial changes and modifications made by those skilled in the art on the basis of the present invention are included in the scope of the present invention.
Claims (9)
1. The utility model provides an insulating combination formula switching power supply transformer is strengthened to two skeletons, includes wire winding skeleton (1) and installs magnetic core group (2) on wire winding skeleton (1), be equipped with elementary string portion (11), secondary string portion (12) and elementary pin support (13) on wire winding skeleton (1) respectively, its characterized in that: one side of the insulating shell (3) corresponding to the primary wire hanging part (11) and the primary pin support (13) is provided with a primary opening (31) for avoiding the primary wire hanging part (11) and the primary pin support (13), the primary opening (31) extends to the bottom of the insulating shell (3) and penetrates through the bottom plate, and the side wall of the insulating shell (3) is provided with a lead structure (32) for leading out a lead wire at the secondary wire hanging part (12).
2. The double-skeleton reinforced insulation combined type switching power supply transformer according to claim 1, wherein: the lead structure (32) comprises a secondary opening (321) for avoiding a secondary wire hanging part (12) and a lead channel (322) for leading out outgoing wires of a secondary winding, wherein the secondary opening (321) is arranged at the top end of the side wall of the insulating shell (3), the side wall below the secondary opening (321) is concave and forms the lead channel (322), and a lead hole (323) is formed in the bottom of the lead channel (322).
3. The double-skeleton reinforced insulation combined type switching power supply transformer according to claim 1, wherein: the lead structure (32) comprises a lead groove (324) for leading out the secondary winding to the outer side of the insulating shell (3) and a lead block (325) for connecting the secondary winding, wherein the lead groove (324) is arranged at the top of the side wall of the insulating shell (3), the lead block (325) is arranged at the side wall of the insulating shell (3) below the lead groove (324), and a lead hole (323) is formed in the lead block (325).
4. A dual-frame reinforced insulation combined switching power supply transformer as defined in claim 3, wherein: the number of the lead grooves (324) corresponds to the number of the lead holes (323).
5. The double-skeleton reinforced insulation combined type switching power supply transformer according to claim 1, wherein: the winding framework (1) comprises a winding column (14) and end plates (15) arranged at two ends of the winding column (14), wherein the primary wire hanging part (11), the secondary wire hanging part (12) and the primary lead wire support are respectively arranged at the edge of the end plates (15), and the positions, connected with the primary wire hanging part (11), the secondary wire hanging part (12) and the primary lead wire support (13), of the end plates (15) are respectively provided with a primary wire hanging baffle (151) surrounding the primary wire hanging part (11), a secondary wire hanging baffle (152) surrounding the secondary wire hanging part (12) and a support baffle (153) surrounding the primary lead wire support (13).
6. The double-skeleton reinforced insulation combined type switching power supply transformer according to claim 5, wherein: the magnetic core group (2) is respectively provided with a primary avoidance port (21) for avoiding a primary wire hanging part (11) and a primary pin support (13) and a secondary avoidance port (22) for avoiding a secondary wire hanging part (12), the primary wire hanging baffle (151) and the support baffle (153) are embedded in the primary avoidance port (21), and the secondary wire hanging baffle (152) and the lead channel (322) are embedded in the secondary avoidance port (22).
7. The double-skeleton reinforced insulation combined type switching power supply transformer according to claim 1, wherein: a plurality of connecting blocks (131) are arranged on the primary pin bracket (13), and primary pins (132) are arranged at the bottom of each connecting block (131); the primary wire hanging part (11) comprises a plurality of primary wire hanging posts (111) which are equidistantly arranged, a primary wire hanging groove (112) is formed between two adjacent primary wire hanging posts (111), and one primary wire hanging post (111) is provided with a wiring pin (113).
8. A dual-frame reinforced insulated modular switching power transformer according to any one of claims 2 or 3, wherein: the secondary wire hanging part (12) is provided with secondary wire hanging grooves (121), and the number of the wire leading holes (323) corresponds to the number of the secondary wire hanging grooves (121).
9. The double-skeleton reinforced insulation combined type switching power supply transformer according to claim 1, wherein: the insulating shell (3) is matched with the structure of the magnetic core group (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211396085.0A CN116092775A (en) | 2022-11-09 | 2022-11-09 | Double-framework reinforced insulation combined type switching power supply transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211396085.0A CN116092775A (en) | 2022-11-09 | 2022-11-09 | Double-framework reinforced insulation combined type switching power supply transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116092775A true CN116092775A (en) | 2023-05-09 |
Family
ID=86203231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211396085.0A Pending CN116092775A (en) | 2022-11-09 | 2022-11-09 | Double-framework reinforced insulation combined type switching power supply transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116092775A (en) |
-
2022
- 2022-11-09 CN CN202211396085.0A patent/CN116092775A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101651008B (en) | Inductor element | |
| CN202816831U (en) | A thermal overload relay with current transformers | |
| CN116092775A (en) | Double-framework reinforced insulation combined type switching power supply transformer | |
| CN102709128A (en) | Thermal overload relay with current transformers | |
| CN115036106A (en) | Unilateral pin surrounding type magnetic core PFC inductor | |
| CN218602209U (en) | Double-framework combined type switching power supply transformer for reinforcing insulation | |
| CN213303865U (en) | Flat wire pin inductor | |
| CN212032835U (en) | Inductance assembly of high-power vehicle-mounted charging combined transformer device | |
| TWI695393B (en) | Resonant transformer combined structure | |
| CN218602236U (en) | Semi-surrounded shielding magnetic core combined type switching power supply transformer | |
| CN201796678U (en) | Safety barrier for insulating transformer and insulating transformer comprising same | |
| CN112216488A (en) | Flat wire pin inductor | |
| TW202211268A (en) | High pin structure of resonant transformer capable of increasing the creepage distance, reducing the loop interference between the coils and therefore simplifying circuit board layout | |
| CN217239245U (en) | Transformer framework and transformer | |
| CN218676741U (en) | Switch power supply transformer with asymmetric magnetic core and insulation base | |
| CN212967359U (en) | Magnetic integrated transformer and vehicle-mounted power supply with same | |
| CN220604472U (en) | Skeleton transformer structure and transformer | |
| CN216902494U (en) | Switching power supply transformer with surrounding type magnetic core and multi-slot bobbin | |
| CN106298197B (en) | A kind of detachable transformer | |
| CN216119870U (en) | Transformer framework | |
| CN110739131A (en) | Magnetic core, transformer and power supply | |
| CN212783023U (en) | Transformer framework capable of increasing leakage inductance | |
| CN219226030U (en) | Assembled servo transformer | |
| CN220691852U (en) | Wire frame structure of converter transformer | |
| CN213752314U (en) | Vertical and horizontal integrated transformer framework |
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 | ||
| CB02 | Change of applicant information |
Country or region after: China Address after: B1105, Building 2, Skyworth Innovation Valley, No. 8 Tangtou 1st Road, Tangtou Community, Shiyan Street, Bao'an District, Shenzhen City, Guangdong Province 518000 Applicant after: Shenzhen Huarui Magnetic Energy Technology Co.,Ltd. Address before: 518000 zongtaidian Business Innovation Park a408, west of Songbai highway, Tangtou community, Shiyan street, Bao'an District, Shenzhen, Guangdong Province Applicant before: Shenzhen Zhongzheng Magnetic Energy Technology Co.,Ltd. Country or region before: China |
|
| CB02 | Change of applicant information |