TWI695393B - Resonant transformer combined structure - Google Patents

Abstract

A resonant transformer combination structure. The first and second wire bases of the secondary side wire frame extend at the bottom respectively, the second wire base is provided with auxiliary pins and connection grooves, and the secondary coil is wound around the first wire groove and extends There is a second wire end that is integrated into the first outlet of the first wire base, and a second wire end that is integrated into the second wire base and connected to the auxiliary pin; the primary side wire rack has a second wire groove, and the bottom extends the wire in sequence The board and the third wire base, the primary coil is wound with a second wire slot and has a third wire end that is integrated into the third wire base along the conductor board and connected to the input pin; thereby, the primary and secondary side wire racks are wound around the primary 、Secondary coils are combined again, the auxiliary pins and input pins of the second and third wire seats are assembled at the same time; the connection slot isolates the auxiliary pins and the input pins, and the conductor plate isolates the third outlet end from the secondary coil, Achieve increased creepage distance, shield the loop interference between the primary and secondary coils, simplify the structure of the production process.

Description

Resonant transformer combined structure

The invention relates to a resonant transformer combination structure, in particular to a resonant transformer combination structure which simplifies the production process, increases the creepage distance, and has a stable output from the auxiliary winding distance.

In the manufacturing process of transformers, the main processing time is in the production of coil windings, because the transformer includes the primary coil and the secondary coil, and needs to be wound separately, that is, the primary coil is first wound on the transformer wire frame After that, the secondary coil is wound, or the secondary coil is wound first, and then the primary coil is wound, which leads to an increase in production time.

Therefore, some manufacturers have developed combined transformers. After winding the primary coil and the secondary coil on a wire frame, the wire frame is combined into a transformer, such as the "Removable Transformer" of the Republic of China Patent Gazette No. I575542 , Including a first bobbin, a primary winding, a second bobbin, a secondary winding and a core set. The magnetic core group is provided with a first winding frame and a second winding frame, and is inserted into the first winding frame and the second winding frame. The top and bottom of the first bobbin have a first winding groove and a mounting groove, respectively. The first winding groove is provided with a primary winding, and one side of the installation groove has a first opening communicating with the external space. The top of the second bobbin has a second winding groove, and the second winding groove is provided with a secondary winding. The second bobbin is installed in the installation groove through the first opening, so that the second bobbin and the first bobbin form a detachable combination, and the second bobbin is replaced according to the output requirements to reduce the manufacturing cost ; However, when the above patents are actually used, they still have the following deficiencies:

1. Although the secondary side bobbin has the outlet angle of the auxiliary coil, the auxiliary coil is still installed on the primary side bobbin, so there will be a problem of unstable power supply fluctuations. At the same time, the auxiliary coil's outlet is connected to the corresponding When the metal pin is connected, it will just cross the secondary coil, which generates multiple signal interferences, which makes the power supply more unstable.

2. The bottom of the primary side thread stand is a ㄇ-shaped structure. After the secondary side thread stand is combined with the primary side thread stand, it will not increase the creepage distance, and there is a slight gap at the junction of the two thread stands. Poor insulation can occur.

3. The primary side wire rack and the secondary side wire rack each have corresponding metal pins. For example, the metal pins of the primary side wire rack are arranged in a row on the left side of the transformer, and the metal pins of the secondary side wire rack are on the right side of the transformer. It is arranged in a row, but the metal pins on the secondary side mentioned above also include the metal pins for the outlet of the auxiliary coil, and the metal pins of the auxiliary coil and the secondary coil have different thicknesses, resulting in multiple settings Metal pins.

In view of the above-mentioned shortcomings in practice, the inventors studied and improved the aforementioned shortcomings, and finally the invention came into being.

The main purpose of the present invention is to provide a resonant transformer combination structure that simplifies the production process.

The secondary object of the present invention is to provide a resonant transformer combination structure with increased creepage distance.

Still another object of the present invention is to provide a combined structure of a resonant transformer with a stable output from an auxiliary winding.

In order to achieve the above objectives and effects, the technical measures adopted by the present invention include: a primary side bobbin, a primary coil, a primary side bobbin, and a primary coil, where:

The interior of the secondary side wire rack is penetrating and has a primary side wire groove, with a receiving seat on the top, an opening on one side of the receiving seat, a first perforation on the top, and a first extending on the bottom side of the secondary side wire groove A wire stand, a second wire stand is extended on the other side and an auxiliary pin is arranged at intervals, and a connecting groove is provided beside the second wire stand;

The secondary coil is disposed in the secondary side wire slot of the aforementioned secondary side wire rack, and respectively extends a first outlet end and a second outlet end, and the first outlet end extends into the first wire seat, The second outlet end extends into the second wire base and is connected to the auxiliary pin;

The inside of the primary side wire rack is penetrating, and has a primary side wire slot, a wire plate is extended at the bottom, and a third wire base is provided at the bottom, and an input pin is provided at intervals;

The primary coil is provided in the primary side wire slot of the foregoing primary side wire rack, and extends a third outlet end, the third outlet end is assembled into the third wire base along the conductor plate and connected to the input pin;

The aforementioned primary side thread stand is arranged in the secondary side thread stand through the opening of the accommodating seat, and the third thread stand is correspondingly arranged in the connection groove of the second thread stand. The secondary side thread stand and the primary side thread stand are respectively wound with the secondary coil and the primary coil. After the combination, and the auxiliary pins and input pins of the second and third wire sockets are processed separately at the same time, and after the third outlet end of the primary coil is connected to the input pin, the connection slot isolates the auxiliary connection The pin and the input pin, and the lead plate isolate the secondary coil of the third outlet, to achieve increased creepage distance, and can shield the loop interference between the secondary coil and the primary coil, simplifying the structure of the production process.

According to the above structure, the top surface of the receiving seat is provided with a symmetrical first upright plate adjacent to the first perforation, and a second upright plate is respectively provided at the positions of the first upright plate and the second line seat corresponding to the first upright plate.

According to the above structure, wherein the bottom edge of the opening of the receiving seat is provided with a notch, the aforementioned primary-side wire rack is disposed in the secondary-side wire rack, and the lead plate is caught in the notch.

According to the above structure, the other side of the receiving seat corresponding to the aforementioned notch has an insulating portion for increasing the creepage distance.

According to the above structure, an insulating groove for increasing the creepage distance is provided on the outer surface of the insulating portion.

According to the above structure, an insulating plate is added to the third wire base to increase the creepage distance.

According to the above structure, an insulating groove for increasing the creepage distance is respectively provided on both sides of the lead plate.

According to the above structure, wherein the connecting groove is provided at the left section, the right section or the middle section of the second wire holder, then the conductor plate of the primary side wire holder is inclined left, right, or upright corresponding to the second wire holder.

According to the above structure, at least one or more separators are provided in the primary side wire groove of the primary side wire frame.

According to the above structure, it further includes a symmetrical iron core, a central pillar extends at the middle of each iron core, and symmetrical side pillars are provided at the near two ends. The central pillar respectively passes through the first perforation of the receiving seat and the bottom of the secondary side wire frame , Penetrated into the secondary side wire frame and pressed against each other, and each side column respectively covered both sides of the secondary side wire frame and pressed against the top.

In order to obtain a more specific understanding of the above-mentioned objects, effects and features of the present invention, the description according to the drawings is as follows:

Please refer to FIG. 1, FIG. 2 and FIG. 3, it can be seen that the structure of the present invention mainly includes: a primary side wire frame 1, a primary coil 2, a primary side wire frame 3, a primary coil 4 and two corresponding cores 5, among them:

The inside of the secondary side wire frame 1 is penetrating, with a first wire groove 11, a receiving seat 12 on the top, an opening 121 on one side of the receiving seat 12, and a notch 122 on the bottom edge corresponding to the notch 122 The other side has an insulating portion 125 for increasing the creepage distance, and an outer surface of the insulating portion 125 is provided with an insulating groove 126 for increasing the creepage distance; the top of the receiving seat 12 has a first through hole 123 adjacent to the first through hole 123 There is a symmetrical first riser 124; a first wire base 13 extends on the bottom side of the first wire groove 11 of the secondary side wire rack 1, a second wire base 14 extends on the other side and an auxiliary pin 15 is arranged at intervals There is a connecting groove 16 beside the second wire base 14.

The secondary coil 2 is disposed in the first wire slot 11 of the secondary side bobbin 1 and respectively extends a first wire end 21 and a second wire end 22.

The primary side wire rack 3 is penetrating inside and has a second wire groove 31, at least one or more separators 311 are provided inside, a conductor plate 32 is extended at the bottom, and a creeping distance is provided on both sides In the insulating slot 321, a third wire base 33 is provided at the bottom of the wire plate 32 and an input pin 34 is spaced apart. The third wire base 33 extends with an insulating plate 331 for increasing the creepage distance.

The primary coil 4 is disposed in the second wire slot 31 of the primary side bobbin 3 and extends a third wire end 41. as well as,

A center pillar 51 extends at the middle section of each iron core 5 and has symmetrical side pillars 52 at both ends. The center pillar 51 passes through the first perforation 123 of the receiving seat 12 and the bottom of the secondary side wire rack 1 respectively, and penetrates into the secondary The side wire racks 1 are pressed against each other, and each side column 52 covers the two sides of the secondary side wire rack 1 and is pressed against each other.

The primary coil 4 is disposed in the second wire slot 31 of the primary side wire frame 3 and extends a third wire end 41. The third wire end 41 is assembled along the wire plate 32 into the third wire base 33 and connected to the input pin 34.

When the above components are combined, the secondary coil 2 is wound in the first wire slot 11 of the secondary side bobbin 1, and the first outlet end 21 of the secondary coil 2 extends into the first wire base of the secondary side bobbin 1 13. The second outlet 22 extends into the second wire holder 14 of the secondary side wire rack 1 and is connected to the auxiliary pin 15; meanwhile, the primary coil 4 is wound around the second wire groove 31 of the primary side wire rack 3 , The third outlet end 41 of the secondary coil 2 is assembled along the wire plate 32 into the third wire socket 33 and connected to the input pin 34; it should be noted that the above-mentioned secondary coil 2 is wound around the secondary side wire frame 1, and The process of winding the primary coil 4 in the second slot 31 of the primary-side bobbin 3, since the secondary-side bobbin 1 and the primary-side bobbin 3 are separate members, respectively, can independently perform coil winding, simplifying the production process And reduce production time.

Continue to place the primary-side wire rack 3 in the secondary-side wire rack 1 through the opening 121 of the receiving seat 12, because the bottom edge of the opening 121 of the receiving seat 12 is provided with a notch 122, so the lead plate 32 of the primary-side wire rack 3 snaps into the recess In the opening 122, a structure for positioning and strengthening and fixing is formed; meanwhile, the third wire holder 33 of the primary side wire stand 3 is correspondingly disposed in the connection groove 16 of the second wire holder 14, it should be noted that in this embodiment, the connection groove 16 It is provided on the left section of the second wire base 14. Therefore, the wire plate 32 of the primary side wire frame 3 is diagonally arranged to the right corresponding to the connection groove 16, so that the third wire base 33 can be combined into the connection groove 16. Between the second wire base 14 and the third wire base 33 of the present invention, the corresponding combination position between the second wire base 14 and the third wire base 33 can be improved according to the actual production requirements. Therefore, the connection groove 16 can be provided At the left section, the right section or the middle section of the second wire holder 14, the conductor plate 32 of the primary side wire stand 3 corresponds to the second wire holder 14 with a right oblique (as shown in FIGS. 1 and 2) and a left oblique (as shown in FIG. 3 and Figure 4), or upright (as shown in Figure 5 and Figure 6) settings.

In this way, after the secondary side bobbin 1 is wound with the secondary coil 2, the first outlet end 21 or the second outlet end 22 will not be interfered by the primary coil 4, it should be noted that in a preferred embodiment In the case where the first outlet 21 is defined as the output of the resonant transformer, the second output 22 is defined as the output of the auxiliary winding. Therefore, compared to conventional techniques, the auxiliary winding does not need to be The side coil is pulled out and used to enable various electronic parts on the circuit board to obtain stable working power (voltage/current) during operation; and,

After the third outlet 41 of the primary coil 4 is connected to the input pin 34, the connection slot 16 can isolate the auxiliary pin 15 and the input pin 34 to avoid mutual interference, and the conductor plate 32 can isolate the third outlet 41 It can further avoid mutual interference with the secondary coil 2 in the first wire slot 11, achieve an increase in creepage distance, and can shield the loop interference between the secondary coil 2 and the primary coil 4, simplifying the structure of the production process.

In summary, the combination structure of the resonant transformer of the present invention is indeed a novel and progressive invention, and an application for an invention patent is filed in accordance with the law; but the above description is only for the description of the preferred embodiments of the present invention. Any changes, modifications, changes or equivalent substitutions of the technical means and scope of the present invention should also fall within the scope of the patent application of the present invention.

1: Secondary side thread stand 11: The first wire slot 12: Containment Block 121: opening 122: Notch 123: First punch 124: first stand 125: Insulation 126: Insulation slot 13: First line seat 131: Second riser 14: Second line seat 141: Second riser 15: auxiliary pin 16: Connection slot 2: secondary coil 21: The first outlet 22: The second outlet 3: Primary side thread stand 31: Second trunking 311: Separator 32: conductor board 321: Insulation slot 33: Third line seat 331: Insulation board 34: input pin 4: Primary coil 41: third outlet 5: Iron core 51: Center column 52: Side post

[Figure 1] is a perspective view of a preferred embodiment of the present invention. [Figure 2] is an exploded perspective view of a preferred embodiment of the present invention. [FIG. 3] is a perspective view of some components of a preferred embodiment of the present invention. [Figure 4] is an exploded perspective view of yet another preferred embodiment of the present invention. [Figure 5] is an exploded perspective view of yet another preferred embodiment of the present invention.

1: Secondary side thread stand

11: The first wire slot

12: Containment Block

121: opening

122: Notch

123: First punch

124: first stand

125: Insulation

126: Insulation slot

13: First line seat

131: Second riser

14: Second line seat

141: Second riser

15: auxiliary pin

16: Connection slot

2: secondary coil

21: The first outlet

22: second outlet 22

3: Primary side thread stand

31: Second trunking

311: Separator

32: conductor board

321: Insulation slot

33: Third line seat

331: Insulation board

34: input pin

4: Primary coil

41: third outlet

5: Iron core

51: Center column

52: Side post

Claims (10)

A resonant transformer combination structure, which at least includes: The primary side wire rack is internally penetrating and has a primary side wire slot with a receiving seat on the top, an opening on one side of the receiving seat, a first perforation on the top, and a first wire extending from the bottom side of the secondary side wire slot A second wire base is extended on the other side and an auxiliary pin is arranged at intervals, and a connecting groove is provided beside the second wire base; The primary coil is arranged in the secondary side wire slot of the secondary side wire frame, and respectively extends a first outlet end and a second outlet end, the first outlet end extends into the first wire seat, the second The outlet end is extended into the second wire base and connected to the auxiliary pin; A primary side wire rack, which is penetrating inside and has a primary side wire slot, a conductor plate extending at the bottom, and a third wire holder at the bottom, and an input pin at intervals; A primary coil, which is arranged in the primary side wire slot of the primary side wire rack and extends a third outlet end, the third outlet end is assembled into the third wire base along the conductor plate and connected to the input pin; The primary-side wire rack is set in the secondary-side wire rack through the opening of the receiving seat, and the third wire rack is correspondingly set in the connection slot of the second wire rack. The secondary-side wire rack and the primary-side wire rack are respectively wound with secondary coils and primary coils. Combination, and the auxiliary pins and input pins of the second and third wire holders are processed separately at the same time, and after the third outlet of the primary coil is connected to the input pin, the connection slot isolates the auxiliary pin from the input The pin and the lead plate isolate the secondary coil at the third outlet end to increase the creepage distance, and can shield the loop interference between the secondary coil and the primary coil, simplifying the structure of the production process. The resonant transformer combination structure according to claim 1, wherein a symmetrical first vertical plate is provided on the top surface of the receiving seat adjacent to the first perforation, and the positions of the first vertical plate corresponding to the first line base and the second line base are determined Don't have a second riser. The resonant transformer combination structure according to claim 1, wherein the bottom edge of the opening of the receiving seat is provided with a notch, the primary side wire frame is disposed in the secondary side wire frame, and the wire plate is caught in the notch. The resonant transformer combination structure according to claim 3, wherein the other side of the corresponding recess of the receiving seat has an insulating portion for increasing the creepage distance. The resonant transformer combination structure according to claim 4, wherein an insulating groove for increasing a creepage distance is provided on the outer surface of the insulating portion. The resonant transformer combination structure according to claim 1, wherein the third wire base is extended with an insulating plate for increasing creepage distance. The resonant transformer combination structure as described in claim 1, wherein an insulating slot for increasing the creepage distance is provided on both sides of the lead plate respectively The resonant transformer combination structure according to claim 1, wherein the connection slot is provided at the left section, the right section or the middle section of the second wire base, then the lead plate of the primary side wire frame corresponds to the left and right obliques of the second wire base Or set upright. The resonant transformer combination structure according to claim 1, wherein at least one or more separators are provided in the primary-side wire trough of the primary-side wire rack. The resonant transformer combination structure according to claim 1, further comprising a symmetrical iron core, a central pillar extending at the middle of each iron core, and symmetrical side pillars at the near two ends. The perforation and the bottom of the secondary side wire rack penetrate into the secondary side wire rack and come into contact with each other, and each side column respectively covers both sides of the secondary side wire rack and comes into contact with the top.

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