CN113936897B - High-frequency transformer combined type framework - Google Patents
High-frequency transformer combined type framework Download PDFInfo
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- CN113936897B CN113936897B CN202111323386.6A CN202111323386A CN113936897B CN 113936897 B CN113936897 B CN 113936897B CN 202111323386 A CN202111323386 A CN 202111323386A CN 113936897 B CN113936897 B CN 113936897B
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- coil support
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- 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
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- 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
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/266—Fastening or mounting the core on casing or support
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The invention relates to the technical field of transformers, and discloses a combined framework of a high-frequency transformer, which comprises a coil support and a magnetic core, wherein mounting grooves are formed in the middle parts of two opposite side walls of the coil support, sliding blocks are fixedly mounted at two ends of the magnetic core, the sliding blocks are clamped in the mounting grooves, extrusion grooves are formed in two ends of a top plate connected with the coil support, a pressing rod is connected in the extrusion grooves in a sliding mode, a sliding plate is fixedly mounted at one end of the pressing rod, a pressure spring is fixedly connected between one side, away from the pressing rod, of the sliding plate and the extrusion grooves, a sliding groove is formed in the bottom side of the extrusion grooves, a connecting rod penetrates through the sliding groove and is connected with the sliding groove in a sliding mode, an inserting rod is fixedly mounted at the bottom end of the connecting rod, close to one side of the coil support, inserting grooves are formed in the tops of opposite side walls of the coil support, and the inserting rod is clamped with the inserting grooves; the framework adopting the combined type is convenient for disassembling the top plate, and the coil on the magnetic core is convenient to overhaul.
Description
The technical field is as follows:
the invention relates to the technical field of transformers, in particular to a combined type framework of a high-frequency transformer.
Background art:
a transformer is an electrical device for converting electrical energy, which can convert ac electrical energy of one voltage and current into ac electrical energy of another voltage and current with the same frequency. It is widely applied to the fields of notebook computers, mobile phones, automobile electronics and the like. The Bobbin, also known as a transformer Bobbin, or transformer Bobbin, collectively known as Bobbin, is a major structural component of the transformer.
The transformer framework is an important component of the transformer, and has the main functions of: 1. providing winding space for copper wires in the transformer; 2. fixing a magnetic core in the transformer; 3. the wire grooves in the framework provide wire passing paths for the winding of the transformer; 4. the metal pin in the framework is a pillar wound by copper wires of the transformer; after soldering tin, the transformer is connected with the PCB and plays a role in conducting electricity when the transformer works; 5. the convex points, concave points or chamfers in the framework can determine the placement direction or stitch sequence of the transformer when in use.
The existing transformer framework is designed in an integrated mode, when the winding coil at the upper part of the magnetic core is damaged, the framework cannot be detached, so that the coil is relatively troublesome to overhaul, the magnetic core and the coil cannot be replaced timely, and the limitation is large in the using process.
The invention content is as follows:
the invention aims to provide a combined type framework of a high-frequency transformer, aiming at the problems in the prior art.
The technical problem to be solved by the invention is realized by adopting the following technical scheme: a combined type framework of a high-frequency transformer comprises a coil support and a magnetic core, wherein mounting grooves are formed in the middle of two opposite side walls of the coil support, sliding blocks are fixedly mounted at two ends of the magnetic core, the sliding blocks are clamped in the mounting grooves in a clamped mode, a top plate is arranged at the top of the coil support, clamping grooves are formed in two ends of the bottom side of the top plate, and two sides of the coil support are clamped in the clamping grooves;
the coil support is characterized in that extrusion grooves are formed in two ends, connected with the coil support, of the top plate, a pressure rod is connected in the extrusion grooves in a sliding mode, a sliding plate is fixedly mounted at one end of the pressure rod, a pressure spring is fixedly connected between one side, away from the pressure rod, of the sliding plate and the extrusion grooves, the other end of the pressure rod penetrates through the extrusion grooves and extends to the outer sides of the extrusion grooves, a sliding groove is formed in the bottom side of the extrusion grooves, a connecting rod is fixedly mounted at the bottom side of the pressure rod, penetrates through the sliding groove and is connected with the sliding groove in a sliding mode, an inserting rod is fixedly mounted at the bottom end of the connecting rod, close to one side of the coil support, the top of the opposite side wall of the coil support is provided with an inserting groove, and the inserting rod is clamped with the inserting groove;
the coil support bottom both sides all fixed mounting have the foot to lead the support, foot leads the support bottom and is equipped with a plurality of groups foot and leads.
Preferably, the depression bar is kept away from slide one end fixed mounting and is pressed the clamp plate, press the clamp plate bottom side and be equipped with the turn trough, the turn trough both sides are equipped with the spacing groove, and are two sets of the pivot is installed to the spacing inslot internal rotation, the torsional spring has all been cup jointed at the pivot both ends, torsional spring one end and pivot fixed connection, the other end and spacing groove lateral wall butt, the pivot is located turn trough part fixed mounting and has the baffle, and the baffle keeps perpendicular with pressing the clamp plate under the normal condition, and the baffle is kept away from pressing clamp plate one side and roof lateral wall butt.
Preferably, two groups of ejector rods are fixedly mounted on the bottom side of the top plate, the positions of the ejector rods correspond to the mounting groove, and the ejector rods are located inside the mounting groove and abutted to the upper side of the sliding block at the bottom end.
Preferably, a plurality of groups of partition plates are fixedly arranged on the magnetic core at equal intervals.
Preferably, the bottom of the coil support is provided with two rows of wire outlet grooves, and the positions of the wire outlet grooves correspond to the pins.
Compared with the prior art, the invention has the beneficial effects that:
according to the combined type framework of the high-frequency transformer, the sliding plate, the compression rod, the connecting rod and the insertion rod are pushed to the side close to the coil support under the elastic action of the compression spring, so that the insertion rod is clamped with the slot, the top plate and the coil support are positioned and assembled under the matching of the two sides of the coil support and the slot, the top plate can be disassembled when the coil wound at the upper part of the magnetic core is damaged, and then the magnetic core is taken down along the mounting groove, so that the coil is convenient to overhaul, meanwhile, the new magnetic core and the new coil can be replaced in time, the installation of the new magnetic core and the new coil cannot be delayed while the old magnetic core and the old coil are overhauled, the practicability of the transformer in the use process is improved, and the problem that the existing integrated type framework of the transformer is high in limitation in the use process is effectively solved.
Description of the drawings:
in order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts;
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of a portion of the present invention at A in FIG. 1;
FIG. 3 is a schematic side view of a pressing plate according to the present invention;
FIG. 4 is an enlarged view of a portion of the present invention at B in FIG. 3;
FIG. 5 is a schematic view of the internal structure of the mounting groove of the present invention;
FIG. 6 is a side view of the coil support of the present invention;
FIG. 7 is a bottom view of the coil support of the present invention;
wherein: 1. a coil support; 101. an outlet groove; 102. mounting grooves; 103. inserting slots; 2. a foot lead bracket; 3. a foot lead; 4. a top plate; 401. extruding a groove; 402. a chute; 403. a card slot; 5. a magnetic core; 6. a partition plate; 7. a slider; 8. a top rod; 9. a pressure lever; 10. a slide plate; 11. a pressure spring; 12. a connecting rod; 13. inserting a rod; 14. a pressing plate; 1401. rotating the groove; 1402. a limiting groove; 15. a rotating shaft; 16. a torsion spring; 17. and a baffle plate.
The specific implementation mode is as follows:
in order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
Example 1:
as shown in fig. 1-6; a combined type framework of a high-frequency transformer comprises a coil support 1 and a magnetic core 5, wherein mounting grooves 102 are formed in the middle of two opposite side walls of the coil support 1, sliding blocks 7 are fixedly mounted at two ends of the magnetic core 5, the sliding blocks 7 are clamped in the mounting grooves 102, a top plate 4 is arranged at the top of the coil support 1, clamping grooves 403 are formed in two ends of the bottom side of the top plate 4, and two sides of the coil support 1 are clamped in the clamping grooves 403;
both ends that roof 4 and coil brace 1 are connected all are equipped with extrusion groove 401, the inside sliding connection of extrusion groove 401 has depression bar 9, 9 one end fixed mounting of depression bar has slide 10, slide 10 keeps away from fixedly connected with pressure spring 11 between depression bar 9 one side and the extrusion groove 401, the depression bar 9 other end runs through and extends to the extrusion groove 401 outside, extrusion groove 401 bottom side is equipped with spout 402, 9 bottom side fixed mounting of depression bar has connecting rod 12, connecting rod 12 runs through spout 402 and rather than sliding connection, connecting rod 12 bottom is close to 1 one side fixed mounting of coil brace 13, 1 relative lateral wall top of coil brace is equipped with slot 103, inserted bar 13 and slot 103 joint.
The coil support 1 bottom both sides all fixed mounting have foot to lead support 2, foot is drawn support 2 bottoms and is equipped with a plurality of groups foot and leads 3.
The pressing rod 9 is far away from the slide 10 one end fixed mounting has the pressing board 14, the pressing board 14 bottom side is equipped with the turn trough 1401, the turn trough 1401 both sides are equipped with spacing groove 1402, two sets of spacing groove 1402 internal rotation is installed the pivot 15, the pivot 15 both ends all cup jointed torsional spring 16, 16 one end of torsional spring and pivot 15 fixed connection, the other end and spacing groove 1402 lateral wall butt, pivot 15 is located turn trough 1401 partial fixed mounting has baffle 17, baffle 17 keeps perpendicular with the pressing board 14 under the normal condition, and baffle 17 keeps away from pressing board 14 one side and roof 4 lateral wall butt.
Two groups of ejector rods 8 are fixedly mounted on the bottom side of the top plate 4, the positions of the ejector rods 8 correspond to the mounting groove 102, the ejector rods 8 are located inside the mounting groove 102, and the bottom ends of the ejector rods 8 are abutted to the upper side of the sliding block 7.
When a part of coils on the magnetic core 5 are damaged, the magnetic core 5 needs to be disassembled, two groups of pressing plates 14 are pulled towards the direction away from the top plate 4, and then the baffle plate 17 is shifted downwards, so that the baffle plate 17 rotates at a certain angle relative to the pressing plates 14 (the baffle plate 17 on the left side rotates clockwise, the baffle plate 17 on the right side rotates anticlockwise), that is, the baffle plate 17 is separated from the top plate 4 in a butting state, at this moment, the pressing plates 14 on the two sides are pressed inwards, so that the compression spring 11 is in a compression state, the sliding plate 10, the compression rod 9, the connecting rod 12 and the insertion rod 13 all want to move close to one side of the compression spring 11, so that the insertion rod 13 is separated from the insertion slot 103 in a clamping manner, then the top plate 4 moves upwards to take down the top plate 4 from the coil support 1, meanwhile, the ejector rod 8 withdraws from the mounting groove 102, the extrusion on the sliding block 7 is removed, and the magnetic core 5 can be taken down from the coil support 1.
Example 2:
based on example 1, as shown in FIGS. 1-7; a high-frequency transformer combined type framework comprises a coil support 1 and a magnetic core 5, wherein mounting grooves 102 are formed in the middle of two opposite side walls of the coil support 1, sliding blocks 7 are fixedly mounted at two ends of the magnetic core 5, the sliding blocks 7 are clamped in the mounting grooves 102, a top plate 4 is arranged at the top of the coil support 1, clamping grooves 403 are formed in two ends of the bottom side of the top plate 4, and two sides of the coil support 1 are clamped in the clamping grooves 403;
both ends that roof 4 and coil brace 1 are connected all are equipped with extrusion groove 401, the inside sliding connection of extrusion groove 401 has depression bar 9, 9 one end fixed mounting of depression bar has slide 10, slide 10 keeps away from fixedly connected with pressure spring 11 between depression bar 9 one side and the extrusion groove 401, the depression bar 9 other end runs through and extends to the extrusion groove 401 outside, extrusion groove 401 bottom side is equipped with spout 402, 9 bottom side fixed mounting of depression bar has connecting rod 12, connecting rod 12 runs through spout 402 and rather than sliding connection, connecting rod 12 bottom is close to 1 one side fixed mounting of coil brace 13, coil brace 1 relative lateral wall top is equipped with slot 103, inserted rod 13 and slot 103 joint.
The coil support 1 bottom both sides all fixed mounting have foot to lead support 2, foot is drawn support 2 bottoms and is equipped with a plurality of groups foot and leads 3.
The pressing rod 9 is far away from the slide 10 one end fixed mounting has the pressing board 14, the pressing board 14 bottom side is equipped with the turn trough 1401, the turn trough 1401 both sides are equipped with spacing groove 1402, two sets of spacing groove 1402 internal rotation is installed the pivot 15, the pivot 15 both ends all cup jointed torsional spring 16, 16 one end of torsional spring and pivot 15 fixed connection, the other end and spacing groove 1402 lateral wall butt, pivot 15 is located turn trough 1401 partial fixed mounting has baffle 17, baffle 17 keeps perpendicular with the pressing board 14 under the normal condition, and baffle 17 keeps away from pressing board 14 one side and roof 4 lateral wall butt.
Two groups of ejector rods 8 are fixedly mounted on the bottom side of the top plate 4, the positions of the ejector rods 8 correspond to the mounting groove 102, the ejector rods 8 are located inside the mounting groove 102, and the bottom ends of the ejector rods 8 are abutted to the upper side of the sliding block 7.
Equidistant fixed mounting has a plurality of groups of baffles 6 on the magnetic core 5, separates the winding coil on with magnetic core 5 through setting up baffle 6, prevents to interfere between the adjacent coil.
The bottom of the coil support 1 is provided with wire outgoing grooves 101, and the wire outgoing grooves 101 are provided with two rows and correspond to the pins 3 in position. Lead out the connector lug through every group coil after 6 partitions and be connected with pin 3, through the wire outgoing groove 101 that sets up in coil bracket 1 bottom for every group coil homoenergetic is independently connected with bottom pin 3, and the connecting wire can not stretch out or paste and cover in the transformer outside, improves connection stability and has improved circuit layout's aesthetic property simultaneously.
The working principle of the invention is as follows: when the magnetic core 5 needs to be disassembled, firstly, two groups of pressing plates 14 are pulled in a direction away from the top plate 4, then the baffle plate 17 is shifted downwards, so that the baffle plate 17 rotates at a certain angle relative to the pressing plates 14 (the left baffle plate 17 rotates clockwise, the right baffle plate 17 rotates anticlockwise), namely, the baffle plate 17 is separated from the abutting state with the top plate 4 at the moment, the pressing plates 14 on the two sides are pressed inwards at the moment, so that the pressure spring 11 is in a compression state, the sliding plate 10, the pressure rod 9, the connecting rod 12 and the inserting rod 13 want to move close to one side of the pressure spring 11, so that the inserting rod 13 is separated from the slot 103 to be clamped, then, the top plate 4 moves upwards, the top plate 4 can be taken down from the coil support 1, meanwhile, the ejector rod 8 withdraws from the mounting groove 102, the extrusion on the sliding block 7 is removed, and the magnetic core 5 can be taken down from the coil support 1;
in the same way, with 1 both sides joint of coil support in draw-in groove 403 when installing roof 4, the elasticity effect through pressure spring 11 with inserted bar 13 joint inside slot 103, thereby accomplish the connection of roof 4 and coil support 1, under the effect of torsional spring 16, baffle 17 keeps perpendicular with pressing board 14, and baffle 17 keeps away from pressing board 14 one side and roof 4 lateral wall butt, can prevent that the mistake from bumping the condition that leads to inserted bar 13 and slot 103 to break away from according to pressing board 14, thereby make this combination formula skeleton possess higher stability.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. A high frequency transformer combination formula skeleton which characterized in that: the coil support comprises a coil support (1) and a magnetic core (5), wherein mounting grooves (102) are formed in the middle of two opposite side walls of the coil support (1), sliding blocks (7) are fixedly mounted at two ends of the magnetic core (5), the sliding blocks (7) are clamped in the mounting grooves (102), a top plate (4) is arranged at the top of the coil support (1), clamping grooves (403) are formed in two ends of the bottom side of the top plate (4), and two sides of the coil support (1) are clamped in the clamping grooves (403);
the coil support is characterized in that extrusion grooves (401) are formed in two ends, connected with the coil support (1), of the top plate (4), a pressing rod (9) is connected inside the extrusion grooves (401) in a sliding mode, a sliding plate (10) is fixedly mounted at one end of the pressing rod (9), a pressure spring (11) is fixedly connected between one side, away from the pressing rod (9), of the sliding plate (10) and the extrusion grooves (401), the other end of the pressing rod (9) penetrates through and extends to the outer side of the extrusion grooves (401), a sliding groove (402) is formed in the bottom side of the extrusion grooves (401), a connecting rod (12) is fixedly mounted at the bottom side of the pressing rod (9), penetrates through the sliding groove (402) and is connected with the sliding groove in a sliding mode, an insertion rod (13) is fixedly mounted at the bottom end of the connecting rod (12) close to one side of the coil support (1), a slot (103) is formed in the top of the opposite side wall of the coil support (1), and the insertion rod (13) is clamped with the slot (103);
two sides of the bottom of the coil support (1) are fixedly provided with foot lead supports (2), and the bottom of each foot lead support (2) is provided with a plurality of groups of foot leads (3);
the pressing plate (14) is fixedly installed at one end, far away from the sliding plate (10), of the pressing rod (9), rotary grooves (1401) are formed in the bottom side of the pressing plate (14), limiting grooves (1402) are formed in two sides of each rotary groove (1401), rotating shafts (15) are rotatably installed in the two groups of limiting grooves (1402), torsion springs (16) are sleeved at two ends of each rotating shaft (15), one ends of the torsion springs (16) are fixedly connected with the rotating shafts (15), the other ends of the torsion springs are abutted to the side walls of the limiting grooves (1402), a baffle (17) is fixedly installed on the rotating shaft (15) portion, located in each rotary groove (1401), of the rotating shafts (15), and the baffle (17) is perpendicular to the pressing plate (14) in a normal state, and one side, far away from the pressing plate (14), of the baffle (17) is abutted to the side wall of the top plate (4);
two sets of ejector pins (8) are fixedly mounted on the bottom side of the top plate (4), the ejector pins (8) correspond to the mounting groove (102), and the ejector pins (8) are located inside the mounting groove (102) and are abutted to the upper side of the sliding block (7) at the bottom end.
2. The combined type framework of the high-frequency transformer as claimed in claim 1, wherein: and a plurality of groups of partition plates (6) are fixedly arranged on the magnetic core (5) at equal intervals.
3. The combined type framework of the high-frequency transformer as claimed in claim 1, wherein: the coil support (1) bottom is equipped with wire outgoing groove (101), wire outgoing groove (101) are equipped with two rows and the position corresponds with foot lead (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111323386.6A CN113936897B (en) | 2021-11-08 | 2021-11-08 | High-frequency transformer combined type framework |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111323386.6A CN113936897B (en) | 2021-11-08 | 2021-11-08 | High-frequency transformer combined type framework |
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| CN113936897A CN113936897A (en) | 2022-01-14 |
| CN113936897B true CN113936897B (en) | 2022-10-18 |
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| CN202111323386.6A Active CN113936897B (en) | 2021-11-08 | 2021-11-08 | High-frequency transformer combined type framework |
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| JP2001291619A (en) * | 2000-04-11 | 2001-10-19 | Matsushita Electric Ind Co Ltd | Transformer |
| CN105845395A (en) * | 2016-06-20 | 2016-08-10 | 合肥市菲力克斯电子科技有限公司 | Combined high-frequency transformer framework capable of reinforcing pins |
| CN207305473U (en) * | 2017-09-24 | 2018-05-04 | 张国强 | A kind of garden trimming machine easy to adjust |
| CN208421726U (en) * | 2018-07-04 | 2019-01-22 | 王松 | A kind of detachable counter body |
| CN209232583U (en) * | 2019-02-15 | 2019-08-09 | 深圳市铂骏电子有限公司 | Hold-down support is used in a kind of production of flat surface transformer skeleton |
| CN210956404U (en) * | 2019-11-26 | 2020-07-07 | 山东福大变压器有限公司 | Insulating framework for transformer |
| CN211600164U (en) * | 2020-02-28 | 2020-09-29 | 文少斌 | Monitoring equipment mounting base convenient to dismantle |
| CN211788571U (en) * | 2020-04-28 | 2020-10-27 | 广东搏思远科技有限公司 | Novel combined transformer framework |
| CN112735773A (en) * | 2020-12-18 | 2021-04-30 | 南京丰旭电子科技有限公司 | Skeleton for high-frequency transformer for electronic product |
| CN213221748U (en) * | 2020-08-06 | 2021-05-18 | 武汉正益清源科技有限公司 | Multifunctional biological agent stirring device |
| CN213577341U (en) * | 2020-09-15 | 2021-06-29 | 杭州临安康虹照明电器有限公司 | Clamping mounting structure of LED lamp shade |
-
2021
- 2021-11-08 CN CN202111323386.6A patent/CN113936897B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001291619A (en) * | 2000-04-11 | 2001-10-19 | Matsushita Electric Ind Co Ltd | Transformer |
| CN105845395A (en) * | 2016-06-20 | 2016-08-10 | 合肥市菲力克斯电子科技有限公司 | Combined high-frequency transformer framework capable of reinforcing pins |
| CN207305473U (en) * | 2017-09-24 | 2018-05-04 | 张国强 | A kind of garden trimming machine easy to adjust |
| CN208421726U (en) * | 2018-07-04 | 2019-01-22 | 王松 | A kind of detachable counter body |
| CN209232583U (en) * | 2019-02-15 | 2019-08-09 | 深圳市铂骏电子有限公司 | Hold-down support is used in a kind of production of flat surface transformer skeleton |
| CN210956404U (en) * | 2019-11-26 | 2020-07-07 | 山东福大变压器有限公司 | Insulating framework for transformer |
| CN211600164U (en) * | 2020-02-28 | 2020-09-29 | 文少斌 | Monitoring equipment mounting base convenient to dismantle |
| CN211788571U (en) * | 2020-04-28 | 2020-10-27 | 广东搏思远科技有限公司 | Novel combined transformer framework |
| CN213221748U (en) * | 2020-08-06 | 2021-05-18 | 武汉正益清源科技有限公司 | Multifunctional biological agent stirring device |
| CN213577341U (en) * | 2020-09-15 | 2021-06-29 | 杭州临安康虹照明电器有限公司 | Clamping mounting structure of LED lamp shade |
| CN112735773A (en) * | 2020-12-18 | 2021-04-30 | 南京丰旭电子科技有限公司 | Skeleton for high-frequency transformer for electronic product |
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|---|---|
| CN113936897A (en) | 2022-01-14 |
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