TW200949870A - Transformer structure - Google Patents

Abstract

A transformer structure is disclosed. The transformer structure includes a first bobbin piece having a primary winding coil wound thereon, a second bobbin piece having a secondary winding coil wound thereon, and a magnetic core assembly. Since the second terminal of the secondary winding coil is soldered onto the wire-arranging part of the second pin without returning to the first pin side, the problem of causing high-voltage spark or short circuit is avoided. Further, the first bobbin piece further includes a covering element for partially receiving said second bobbin piece therein. The covering element has a block plate to isolate the magnetic core assembly from the primary winding coil and the secondary winding coil.

Description

200949870 IX. Description of the invention: [Technical field to which the invention belongs] - This case relates to a transformer structure, especially a transformer structure that avoids high-voltage return flashover. [Prior Art] Variable pressure is an electronic component that is often used in various electrical appliances to break different voltages to the extent that the appliance can be applied. Please refer to the first figure' which is a schematic diagram of a conventional transformer. As shown in the first figure, the pressure transformer 1 mainly includes a magnetic core assembly, a winding base i2 (b〇bbin), a primary winding (four) winding coil, and a secondary winding i4. (secondary win (jing c〇ii). The primary winding 13 and the secondary winding 14 are overlapped with each other in the winding portion 121 of the winding base 12, and are insulated, for example. The isolation tape is insulated and separated. The core group u is generally composed of a first core portion 111 and a second core portion 112, which are part of the structure of the core group 11, for example, the first core portion 111 and The first axial portions 111a and 112a of the second core portion 112 are disposed in the channel 22 of the winding base 12 to cause electromagnetic coupling sensing between the core group 11 and the primary winding 13 and the secondary winding 14. In order to achieve the purpose of voltage conversion. In general, the control of the transformer's leakage inductance is very important to the power converter, because it will affect the power conversion efficiency of the power converter. To improve the power conversion efficiency of the power converter. Related technologies have been working to increase the coupling ratio of transformer windings and reduce the magnetic leakage inductance. And minus 6 200949870 energy loss with less voltage conversion. In the transformer structure shown in the first figure, since the primary winding 13 and the secondary winding 14 overlap each other, the winding portion 121 of the winding base U is overlapped. Therefore, the primary winding 13 and the secondary winding 14 form less magnetic leakage, the winding coupling ratio (c〇upHng c〇effident) is higher, the magnetic leakage inductance is lower, and the energy loss is less converted by the transformer. In this way, the power conversion efficiency of the power converter can be improved.

In addition, in a power supply system of a new generation of sub-products such as a liquid crystal display (LCD), the transformer (4) is a transformer structure with a magnetic leakage inductance type. In the application of the separation of the winding base «primary winding and secondary winding separation and keeping the electrical safety distance m贞, the current of the power supply line will pass first - the primary winding of the transformer _ the magnetic leakage inductance L And the LC Wei circuit formed by the capacitive element c, at the same time, a current similar to a half sine wave will pass through the power field effect transistor switch. When the current is zero, the switch will turn on, and after half a sine wave, the current will return to zero and the switch will turn off. The soft-switch design with this spectral circuit reduces the switching losses of the switching components, reduces noise and improves performance. = The size of the LCD panel is increasing day by day, so the length and number of the lamp used are also relatively increased, so the driving voltage (4) of f increases, so the transformer used in the LCD panel is as shown in the second figure. As shown in the figure, the transformer 2 includes a magnetic core group 21, a first winding portion 22, a primary winding 24, and a primary winding. Among them, the second: 22 has a first side plate 26'. The second winding portion 23 has a second side plate 27 and a plurality of partitions 仏, and a plurality of winding grooves 23b are defined between the plurality of partition walls and the second side plate 27 of the 200949870, and the winding grooves 23b are formed by the winding grooves 23b. The dividing principle 'sets the partition 23a according to the level of the used voltage to determine the number of winding grooves 23b. The bases 26a and 27a are respectively provided at the bottom of the first side plate 26 and the second side plate 27. The plurality of pins 28 are provided on the base 26a, and a plurality of pins 29 are also disposed on the base 27a. The winding of the primary winding 24 of the transformer 2 is first wound around one end of the base 26a and then wound onto the first winding portion 22, and finally the other end is wound and connected to the pin 28b.

The winding side is made of money [terminal_connected to the connection H5a of the base 27a, and then sequentially wound onto the winding groove 23b on the second winding portion 23, and finally = the second winding portion 23 is returned to the base 27a, and then connect the other end to the pin 2: the above 'so that' can be maintained between the primary winding 24 and the secondary winding 25 by the spacer 仏 on the second winding portion A certain safety distance and increase the magnetic leakage. In the transformer 2, 'because the primary winding 24 and the second (1) are wound around the back, the partial coil is exposed to the _th, the p p p 22 and the second winding 23 are covered with an insulator. But it is still easy to be safe because of == coils, seven jumps and said that the road is m money, causing the change of the heart (four) and thus the production" = "how to develop - a kind of transformer technology that can improve the conventional technology _ ^ loop jump, it is urgently needed SUMMARY OF THE INVENTION 200949870 The main purpose of the present invention is to provide a transformer structure, which solves the problem that the conventional transformer is prone to high-voltage return flashover, which leads to the lack of pressure-induced tearing. Another object of the present invention is to provide a transformer structure that reduces the overall length and height of the transformer. _

In order to achieve the above object, one of the more broad aspects of the present invention provides an ink-changing device structure comprising: a first winding portion for winding a primary winding 'and having a first through passage and a kit a second winding portion, comprising: a first side plate having a base, the base is provided with a first pin; and a second side plate corresponding to the first side plate; a plurality of partitions Correspondingly disposed between the first side plate and the second side plate; the plate member and the plate member are disposed between the two adjacent partition plates for forming a second through passage together with the two adjacent partition plates and for winding a winding groove of the secondary winding; the second pin has a wire take-up portion, a plug portion, and a connecting portion connecting the wire take-up portion and the plug portion to take up the wire. The p-system extends from the two side plates, the connecting portion is embedded in the plate member, and the plug portion is extended from the base; and the magnetic core group is partially disposed on the *7 winding portion a through passage and a second through passage of the second winding portion, wherein one end of the secondary winding is connected to the first pin, and the other end is wound and connected to the winding portion of the second side plate And at least a portion of the second winding is housed in the kit of the first winding portion, and the kit has a handle, a field, a _, "^ for isolating the core group and the primary winding Lines and the secondary windings. [Embodiment] Some exemplary embodiments embodying the features and advantages of the present invention will be described in detail in the later description of 200949870. It should be understood that the present invention can have various variations in different aspects. The description and illustration are for illustrative purposes only and are not intended to limit the present invention. Please refer to the second figure, which is an exploded view of the transformer structure of the preferred embodiment of the present invention. The schematic diagram of the structure is as shown in the figure. The group 31, the first winding portion 32, the second winding portion 33, the primary winding 34 and the secondary winding 35. The magnetic core group 31 has a first core portion 311 and a second core portion 312. The first axial portion 3ila of the first core portion 3 and the first axial portion 312a of the second core portion 312 are respectively disposed in the first winding portion 32 and the second winding portion 33 to make magnetic The core group 31 and the primary winding 34 and the secondary winding 35 generate electromagnetic coupling induction for the purpose of voltage conversion. In the embodiment, the first winding portion 32 includes a side plate 320, a base 321, a sleeve 322, and The first through-channel 323, the side plate 320 and the sleeve 322 form a winding area 324' for the primary winding 34, and the base 321 is a square structure with a hollow hole formed by the side plate 320. In the embodiment, the sleeve 322, the winding area 324, the side plate 320 and the base 321 of the first winding portion 32 may be, but not limited to, integrally formed, and the sleeve 322 may be a long hollow structure and have a receiving space. (not shown), and the first through passage 323 penetrates the base 321, the side plate 320, and the winding area 324 for the first core The first sleeve portion 311a of the portion 311 is inserted therein. The accommodating space of the 'case 322 is mainly for accommodating the second side plate 338 of the second winding portion 33 and winding around the second winding portion 33. The stage winding 35, which in turn is separated by the kit 322, separates the primary winding 34 from the secondary winding 35. 200949870 Further, the 'suite 322 is formed by a square of five side walls, and is configured to face the back. Opening to the direction of the winding area 324, so that a portion of the second, -% line "卩33 can be accommodated in the accommodating space of the kit via the opening, and the side wall 322a of the - middle portion connected to the winding area 324 is The magnetic core and the insulating wall between the windings can isolate the second core portion 312 from the primary winding 34 and the isolation magnetic portion 311 and the secondary winding 35, in particular the first magnetic core portion 311 The winding portion 33 wound around the second pin 337 is (as shown in FIG. 5A) the secondary firing line 35 on the upper side to avoid the occurrence of sparking due to insufficient safety distance. 4A and B', wherein the fourth diagram a is a schematic structural view of the first winding portion of the third diagram, and the fourth diagram B is the internal schematic diagram of the kit shown by the arrow B direction of the fourth diagram A. . As shown in the figure, in the embodiment, a concave portion is formed on the inner wall surface of the side wall 322a of the sleeve 322, and the shape corresponds to the first axial portion 3i2a and the second pin 337 of the second core portion 312. The wire take-up portion 337a can assist in the fixing and positioning of the magnetic core and provide the winding line.容 337a accommodation space. In particular, the remaining wall thickness of the side wall 322a can be controlled by the arrangement of the recess 322b, i.e., the thickness of the retaining wall separating the primary side and the secondary side is controlled, and thereby the transformer leakage inductance is controlled. Furthermore, since the primary side and the secondary side can be separated by the kit and the partition wall, the creepage distance is increased, so that the distance between the primary side and the secondary side can be shortened, thereby reducing the overall length of the transformer. ° Referring to FIG. 4A again, the base 321 of the first winding portion 32 is provided with a plurality of L-shaped pins 325 for insertion on a circuit board (not shown). The pin 325 is inserted into the corresponding hole 321a of the base 321 and can be divided into the first connection port 325a and the first connection portion 325b which are substantially perpendicular to each other and protrude from the edge of the base 321 respectively. The foot 325 is inserted down the circuit board through the second connecting portion 325b. The first connecting portion and the second connecting portion 325b may be formed of a conductive material, such as copper, _ metal, or (4), to form a structure having a L-shaped shape, that is, the first connecting portion of the connecting milk and the first connecting portion 325b The body is formed, but not limited thereto, and the L-shaped pin 325 can be easily assembled on the base 321 . ❹ Please refer to the fourth figure A and the third figure at the same time, the winding of the primary winding 34, the winding method is connected to the first connecting portion 325a of the pin 325 and then bypassing the groove at the bottom of the base 321 The groove 321 匕 to the winding area seems to be wound 're-passing another groove of the bottom of the base 321 and finally wound around the first connecting portion 325a of the other-pin 325 to complete the winding (such as the third Figure shows). Since the outlet end of the primary winding 34 is wound and connected to the first connecting portion 325a' of the pin 325 and electrically connected to the circuit board through the second connecting portion 32%, the structural strength of the pin 325 can be increased, and the transformer can be reduced. The overall height can avoid the flatness of the pin 325 due to the fact that the outlet end is directly wound around the portion of the pin 325 that is connected to the circuit board (ie, the second connecting portion 325b). Please refer to FIG. 5A, which is a schematic structural view of the second winding portion of the third figure. As shown in the figure, in the embodiment, the second winding portion 33 is mainly composed of the first side plate 330 and the second side. The plate 338, the plurality of partitions 33:2, the plate member 333 and the base 331 are composed. The first side plate 33, the second side plate 338, the partition plate 332, the plate member 333, and the base 331 are substantially square structures, for example, but not limited thereto, and the first side plate 330 and the second side are The plate 338 is divided into 12 200949870 and is located on both sides of the second winding portion 33 and is, for example, a plate structure having a hollow hole.

In some embodiments, each of the partitions 332 is disposed in parallel with the first side panel 330 and the second side panel 338. In addition, the 'plate 333 is disposed between the first side plate 330 and the partition 332, between the second side plate 338 and the partition 332 'and between the two adjacent hollow partitions 332' and adjacent to the first side The plate 330, the second side plate 338 and the partition plate 332 are connected to form a hollow second through passage 335, and the second through passage 335 is mainly used for accommodating a portion of the second core portion 312. In addition, a plurality of winding grooves 334 are formed between the first side plate 330, the second side plate 338, the partition plate 332 and the plate member 333, and are mainly used for winding the secondary winding 35. In addition, in some embodiments, the base 331 may be a structure formed by the first side plate 33〇, which is connected to the first side plate 330, and also has a corresponding hollow hole, and the base 331 is provided with The plurality of first pins 336 and the second pins 337' are inserted into a circuit board (not shown). The first pins 336 are also L-shaped pins and are inserted into the base 331. The corresponding hole 331a has a first connecting portion 336a and a second connecting portion which are substantially perpendicular to each other and protrude from the edge of the base 331 respectively, and the pin 331 is inserted into the circuit through the second connecting portion. The structural advantages of the first pin 336 are the same as those of the pin 325 on the base 321 of the first winding portion %, and thus will not be described herein. Further, at one end of the first side plate 330, the second side plate 338, the partition 332, and the base 331, there are corresponding notches 339. Please refer to FIG. 5B, which is a cross-sectional structural diagram of FIG. 5A. 200949870. As shown in the figure, the second pin 337 is a metal pin extending from the inside of the second winding portion 33. It is composed of a wire take-up portion 337a, a connecting portion 337b, and a plug portion 33. The connecting portion 337b is used to connect the wire-receiving portion 337a and the plug-in portion 337c, and is embedded in the base 331 and the plate 333. Internally, the wire-receiving portion 337a connected to the end of the connecting portion 337b is extended by the second side plate 338 of the second winding portion 33, and the plug portion 337c connected to the other end of the connecting portion 337b is from the base. The bottom of the 331 extends downwardly, and is connected to the circuit board to form a conductive connection, and the connecting portion 337b can be an L-shaped structure, and the implementation manner can be according to the shape of the second winding portion 33. It is different, but not limited to it. Thereby, the secondary winding 35 can be wound in the winding manner shown in FIG. 5c: first, the first connection portion 336a of one end of the secondary winding 35 and the first pin 336 on the base 331 The winding connection is sequentially wound into the first side plate 330, the plurality of partition plates 332 and the winding groove 334 formed by the plate member 333, and the secondary winding ❹ 35 can be passed through the bottom notch 339 of the plurality of partition plates 332. Winding to another winding slot 334. After the winding of the secondary winding 35 is completed, the secondary winding 35 is fixed by the final winding groove 334 via the notch 339 of the second side plate 338 and wound around the winding portion of the second pin 337. 337a, in this way, the winding of the secondary winding 35 is completed, and the current generated by the secondary winding 35 can be conducted to the plug portion 337c via the connecting portion 337b by the winding portion 337a of the second pin 337. And electrically connected to the circuit board, in this way, it can avoid the situation that the secondary winding 35 generates a flashover due to insufficient safety distance when the high voltage is returned. Please refer to the sixth figure, which is a combination diagram of the third figure, as shown in Figure 14 200949870, the second winding part of the phantom base 331 and the ancient 筮. The wall two sides 331bM_, ^ brother - side 331a, The first engaging portion Du, the two side faces 33 C ' have a second side "31b\ on the first side 33la" which may be a bump structure 3Md' but not limited thereto, and has a bump structure 33 at the ΐκΓΙ The second part of the call should be set: 々Γ and the bump structure 33ld of the adjacent transformer are engaged with each other, in the example, the first change can be engaged with each other to extend the combined application, in the present embodiment, the second card member can be The recess structure 3仏 is not limited thereto. The second side surface 331c also has a third engaging bump structure 331f. In addition, the force town has a line but is not limited to the right and the other is at the line. The kit 322 of the Ρ 32 is also provided with a fourth engaging member corresponding to the structure 3Mf. In the present embodiment, the fourth engaging member is a recess structure 322c, which is mainly used for the base of the second winding portion 33. The bump structures 331 on the seat 331 are engaged with each other. When the field transformer 3 is assembled, the second side f 338 of the second winding portion % and the secondary winding % wound around the winding groove 334 are first inserted into the accommodating space of the first winding v of the kit 322 of the P 32 The primary winding 34 is separated from the secondary winding 35 by the sleeve 322, and the first through passage 323 of the first winding portion 32 is connected to the second through passage 335 of the second winding portion 33. Then, the recess structure 332a on the sleeve 322 is further corresponding to the bump structure 331f on the base 331 of the second winding P33 so as to be engaged with each other to wind the winding around the second winding portion 33. The secondary winding % on the groove 334 is set to be in the accommodating space of the kit 322 of the first winding portion 32, and finally, the first axial portion 3Ua of the first core portion 311 and the first portion of the magnetic core portion 311 are magnetically The second core portion 312 is inserted into the first through passage 323 of the first winding portion % and the second through passage 335 of the second winding portion 33, respectively.

15 200949870 to complete the assembly structure diagram of the transformer 3 shown in the fifth figure. Of course, the transformer structure of the present invention is not limited to the square structure described in the preferred embodiment, and the implementation of the transformer may be changed depending on the internal volume of the electronic product and the actual demand. In addition, in some embodiments, the two sets of converters can be used in combination as shown in FIG. 7A, which is a parallel connection of the transformer 3 and the wasteter 4 and passes through the base 331 of the transformer 3. The convex structure 331d of the second side 331a of the second side 331a is engaged with the concave structure 431e of the second side 431b of the base 431 of the dust filter 4 so that the transformer 3 and the transformer 4 can be used in combination together. The first axial portion 311a and the second axial portion 311b of the first core portion 311 of the magnetic core group 31 are respectively disposed in the first through passage 323 of the transformer 3 and the first through passage 423 of the transformer 4, and The first axial portion 312a and the second axial portion 312b of the second core portion 312 are respectively disposed in the second through passage 335 of the transformer 3 and the second through passage (not shown) of the transformer 4 to complete the seventh Figure 2 is a schematic diagram showing the combined structure of two transformers φ 3 and 4. In summary, the transformer structure of the present invention is constructed by extending the second pin to the inside of the plate of the second winding portion and extending one end from the second side plate to make the secondary winding to the second winding. After the winding is completed, the winding portion of the second side plate is directly wound and wound, and there is no need to return the wire to the pin on the base, thereby avoiding the situation that the safety distance is insufficient and causing a flashover in the high voltage return line, and the probability of the transformer being damaged is reduced. Furthermore, the first winding portion has a kit that allows a portion of the second winding portion to be received therein and the kit has a retaining wall for isolating the iron station group from the primary winding and the secondary winding, and This controls the leakage inductance of the transformer magnetic 16 200949870 and reduces the overall length of the transformer. In addition, the pin on the base is an L-shaped pin that reduces the overall height of the transformer. Therefore, the transformer structure in this case is of great industrial value and conforms to various patent requirements, and is submitted in accordance with the law. This case has been modified by people who are familiar with the technology, and is not intended to be protected by the scope of the patent application.

17 200949870 [Simple description of the diagram] The first picture: it is a schematic diagram of the structure of a conventional transformer. Second figure: It is a schematic diagram of another conventional transformer. Third: It is a schematic diagram of the exploded structure of the transformer structure of the preferred embodiment of the present invention. Fourth figure A: It is a schematic structural view of the first winding part shown in the third figure. Fourth Figure B: This is a schematic view of the inside of the kit shown in the direction of arrow B of Figure 4A. Figure 5A is a schematic view showing the structure of the second winding portion shown in the third figure. Figure 5B is a schematic cross-sectional view of the fifth Figure A. Fig. C is a schematic view showing the completion of winding of the second winding portion shown in Fig. A. Figure 6: It is a schematic diagram of the assembly structure of the third figure. Figure 7A is a schematic view showing the structure of two transformer assemblies in another preferred embodiment of the present invention. Figure 7B is a schematic diagram of the combined structure of Figure 7A. [Main component symbol description] Transformer: Bu 2, 3, 4 Core group: 11, 21, 31 First core part: 111, 311 Second core part: 112, 312 18 200949870 First axis: Ilia , 311a, 312a Second axis: 112a, 311b, 312b Winding base: 12 Winding: 121 Channel: 122

Primary winding: 13, 24, 34 Secondary winding: 14, 25, 35 Tape: 15 First winding: 22, 32 Second winding: 23, 33 First side plate: 26, 330 Second Side panels: 27, 338 partitions: 23a, 332 Winding slots: 23b, 334 Base: 26a, 27a, 321, 331 Pins: 28, 28a, 28b, 29, 29a, 29b Side panels: 320 Holes: 321a Groove: 321b Kit: 322 Sidewall: 322a Recess: 322b Recessed structure: 322c First through passage: 323 19 200949870 Winding area: 324 Pin: 325 • First connection: 325a. Second connection: 325b Hole: 331 a Plate: 333 Second through channel: 335 Win first pin: 336 © First connection: 336a Second connection · · 336b Second pin: 337 Retraction: 337a Connection: 337b Part: 337c Notch: 339 First side: 331a ❹ Second side: 331b Third side: 331c Bump structure: 331d, 331f Recessed structure: 331e, 322c

Claims (1)

200949870 X. Patent application scope: 1. A transformer structure, comprising: a first winding portion for winding a primary winding, and having a first through passage and a sleeve; a second winding The system includes: a first side panel having a base, the base is provided with a first pin; a second side plate corresponding to the first side plate; a plurality of partitions Correspondingly disposed between the first side panel and the second side panel; a panel member disposed between the two adjacent partitions for forming a joint with the two adjacent partitions a second through passage and a winding groove for winding the primary winding; and a second pin having a wire receiving portion, a plug portion, and one of the wire connecting portion and the plug portion a connecting portion extending from the second side plate, the connecting portion being embedded in the plate member, wherein the plug portion extends from the base; and a magnetic core group a portion of the first through passage and the second winding portion of the first winding portion a second through-passage; wherein one end of the secondary winding is connected to the first pin, and the other end is wound and connected to the wire-receiving portion of the second side plate, and at least a portion of the second winding portion The sleeve is placed in the kit of the first winding portion, and the kit has a retaining wall for isolating the core group from the primary winding and the secondary winding. The transformer structure of claim 1, wherein the first side panel, the second side panel, and the plurality of partitions are disposed in parallel with each other. 3. The transformer structure of claim 1, wherein the plurality of partitions each have a notch for bypassing the secondary winding from the notch to the adjacent winding groove. . 4. The transformer structure of claim 1, wherein the base has a first side, a second side, and a third side. The transformer structure of claim 4, wherein the first side has a first engaging member, and the second side has a second corresponding to the first engaging member. The engaging member is configured to engage with the first engaging member of an adjacent transformer. 6. The transformer structure of claim 5, wherein the first engaging structure is a bump and the second engaging member is a recessed structure. 7. The transformer structure of claim 4, wherein the third side has a third engaging member, the kit having a fourth engaging member for corresponding to the base The third engaging members of the seat are engaged with each other, so that the second winding portion is fixedly received in the set. 8. The transformer structure of claim 7, wherein the third engaging member is a bump and the fourth engaging member is a recessed structure. 9. The transformer structure of claim 1, wherein the core assembly is comprised of a first core portion and a second core portion. 10. The transformer structure of claim 9, wherein the retaining wall has a recess corresponding to the second core portion to assist in positioning the second core portion. The transformer structure of claim 1, wherein the 哕 has a recessed space corresponding to one of the wire-receiving portions of the second pin, and a space for accommodating the wall portion. .丨% for the winding line 12. The transformer structure of claim 1, wherein the winding wire portion has a base and a plurality of pins of the (four) base rainbow: connecting and inserting the primary winding Planted on a circuit board. 13. The transformer ❹ foot as described in claim 12 is an L·type pin. And the armor is connected to the variable (four) structure described in Item 13, wherein the US is vertically and protrudes from the --connecting port and the second connecting portion of the edge of the base, respectively. The transformer structure of claim 14, wherein the second connecting portion is inserted downwardly on the circuit board, and the outlet end of the line is wound and connected to the first connecting portion. on. The structure of the change (4) described in the first item, the second nt-pin of the towel is the -L-type pin. The 16th leg of the patent application scope is substantially perpendicular to each other and protrudes separately == one of the connection portion and the second connection portion (four) one of the edge of the money seat - the foot system is as described in claim 17 The first _ π 垒 盗 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , twenty three