Transformer skeleton, transformer, power supply, and method for manufacturing a transformer

Abstract

The present invention discloses a transformer skeleton, a transformer, a power supply and a method for manufacturing a transformer. The transformer skeleton includes: a winding column, a first side plate, a second side plate and a first safety regulation rib. The first side plate and the second side plate are connected to the first side and the second side of the winding column in the axial direction. The first safety regulation rib is arranged on the inner side of the first side plate. The first side plate is provided with a plurality of first wire passing grooves, and the first safety regulation rib is provided with a plurality of second wire passing grooves. The secondary side winding passes through the second wire passing groove located at the outermost edge. The outer edge of the second wire passing groove through which the primary side winding passes and located at the outermost edge is the first outer edge. The first outer edge of the second wire passing groove does not exceed the winding center of the secondary side winding close to the second wire passing groove. Thus, by arranging the first safety regulation rib, the fully automated production mode of the transformer can be realized, the production efficiency can be improved, and the structure of the transformer skeleton is simple and the process is concise, thereby saving the manufacturing cost.

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, and particularly to a transformer skeleton, a transformer, a power supply, and a method for manufacturing a transformer. Background Art

[0002] In electronic products in the field of high-frequency switching power supplies, none of the transformer skeletons used can completely avoid safety regulations issues in terms of structural design. Physical isolation is carried out during the winding process of the later-stage transformer production to increase the safety distance.

[0003] In related technologies, the following two methods are the most common ways to increase the safety distance: one is to sleeve a Teflon tube or stick a folded tape for isolation at the cross-contact position between the primary winding and the secondary winding of the transformer skeleton; the other is to add a retaining wall tape on at least one side close to the wire groove of the transformer skeleton to increase the safety distance, and the width of the tape is selected according to different safety regulations requirements.

[0004] The above two physical isolation methods can effectively avoid safety regulations issues, but the labor and material costs invested in the whole process are relatively high, and there are great potential hazards in the manufacturing process. For example, the tape that plays the role of isolation and insulation often shifts and is not pasted in place, resulting in the transformer manufacturing structure not meeting the safety regulations standard requirements. The risk is high, which easily leads to an increase in customer complaint rates, affects the corporate image, and causes damage to interests. And the most important drawback is that this method can only be in a semi-automatic production mode, resulting in low production efficiency, high costs, and long cycles. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides a transformer skeleton, the structure of which is simple, can reduce the manufacturing cost, and can also be fully automated for production.

[0006] The present invention further provides a transformer.

[0007] The present invention further provides a power supply.

[0008] The present invention further provides a method for manufacturing a transformer.

[0009] The transformer skeleton according to the present invention includes: a winding column, a first side plate, a second side plate, and a first safety margin. The first side plate and the second side plate are connected to the first side and the second side of the axial direction of the winding column. The first safety margin is disposed inside the first side plate and also on the outer periphery of the first side of the winding column. The first side plate is provided with a plurality of first wire grooves, and the first safety margin is provided with a plurality of second wire grooves. Each of the second wire grooves corresponds to and communicates with a corresponding first wire groove. A primary side winding and a secondary side winding are adapted to be wound on the winding column. The outer edge of the second wire groove, which is the outermost and through which the primary side winding passes, is a first outer edge, and the first outer edge does not exceed the winding center of the secondary side winding close to this second wire groove.

[0010] For the transformer skeleton according to the present invention, by providing the first safety margin, a fully automated production mode of the transformer can be achieved, the production efficiency can be improved, and the product quality consistency can also be improved. Moreover, the structure of this transformer skeleton is simple and the process is concise, thus the manufacturing cost can be saved. At the same time, this transformer can meet the domestic and foreign safety regulations requirements, the application range of the transformer can be expanded, and thus the versatility and practicality of the transformer can be better.

[0011] In some examples of the present invention, the second wire groove is vertically communicated with the corresponding first wire groove.

[0012] In some examples of the present invention, a chamfer or a C-cut is provided at the outer axial end of the first wire groove, and / or a chamfer or a C-cut is provided at the inner axial end of the second wire groove.

[0013] In some examples of the present invention, the width direction of the first safety margin is the same as the axial direction of the winding column, the width of the first safety margin is A and satisfies the relationship: 0.2 mm ≤ A ≤ 3 mm.

[0014] In some examples of the present invention, the thickness direction of the first safety margin is perpendicular to the axial direction of the winding column, the thickness of the first safety margin is B and satisfies the relationship: 0.2 mm ≤ B ≤ 2 mm.

[0015] In some examples of the present invention, the thickness direction of the first safety margin is perpendicular to the axial direction of the winding column, the thickness of the first safety margin is B, the first safety margin is provided with a plurality of second wire grooves, the depth of the second wire groove is C, and the wall thickness of the winding column is D. Among them, C ≥ 0.5 mm and B + D - C ≥ 0.4 mm.

[0016] In some examples of the present invention, the transformer skeleton further includes: a second safety edge, which is disposed on the inner side of the second side plate and also on the outer periphery of the second side of the winding column.

[0017] In some examples of the present invention, hanging wire bumps are also provided on the second side plate.

[0018] In some examples of the present invention, a gap is left between the hanging wire bumps and the second safety edge.

[0019] In some examples of the present invention, the hanging wire bumps are provided with an anti - detachment structure, and the anti - detachment structure is provided with a plurality of anti - detachment grooves distributed at intervals.

[0020] In some examples of the present invention, the second safety edge is provided with a third wire passing groove.

[0021] In some examples of the present invention, the winding column is rectangular, the inside of the winding column is hollow, and the wall thickness D of the winding column satisfies the relationship: D≥0.4mm.

[0022] In some examples of the present invention, the first side plate is provided with a pin area, and the first safety edge includes: a main body and a lead - out portion, and the lead - out portion extends from the main body towards the pin area.

[0023] In some examples of the present invention, the winding column, the first side plate, the second side plate, and the first safety edge are integrally formed.

[0024] In some examples of the present invention, the transformer skeleton is a vertical transformer skeleton, and the first side plate and the second safety edge are located on the lower side in the axial direction of the winding column.

[0025] In some examples of the present invention, the transformer skeleton is a horizontal transformer skeleton. The first side plate is provided with a plurality of first wire passing grooves, and the first safety edge is provided with a plurality of second wire passing grooves. Each second wire passing groove corresponds to a first wire passing groove communicating with it; the second safety edge is provided with a third wire passing groove, and the second side plate is provided with a fourth wire passing groove. Each third wire passing groove corresponds to a fourth wire passing groove communicating with it.

[0026] The transformer according to the present invention includes: the above - mentioned transformer skeleton; a primary side winding wound around the transformer skeleton; a primary side tape wound around the primary side winding; a secondary side winding wound around the primary side tape; and a secondary side tape wound around the secondary side winding.

[0027] In some examples of the present invention, the thickness of the first safety edge is B, and the thickness of the primary side winding is E, where B≥E.

[0028] In some examples of the present invention, the transformer skeleton further includes a second safety edge, the thickness of the second safety edge is B, and the thickness of the primary side winding is E, where B≥E.

[0029] The power supply according to the present invention includes the transformer described above.

[0030] The method for producing a transformer according to the present invention is characterized by including the following steps: S1. The primary side winding is wound around the winding column, the thickness of the primary side winding does not exceed the thickness of the first safety edge, and the primary side tape is wound around the primary side winding; S2. The secondary side winding is wound around the primary side tape; S3. The secondary side tape is wound around the secondary side winding.

[0031] In some examples of the present invention, the method further includes: in step S1, hanging the buried wire in the wire hanging bumps on the second side plate.

[0032] In some examples of the present invention, step S1 further includes: on the basis of the primary side tape, winding at least one more set of the primary side winding and the primary side tape. Description of the Drawings

[0033] Figure 1 is a cross-sectional view of a transformer skeleton according to an embodiment of the present invention;

[0034] Figure 2 and Figure 3 is a front view of a transformer skeleton according to an embodiment of the present invention;

[0035] Figure 4 is a schematic diagram of a transformer skeleton according to an embodiment of the present invention;

[0036] Figure 5 A schematic diagram of a transformer according to an embodiment of the present invention;

[0037] Figure 6 is an assembly diagram of a transformer skeleton, a primary side tape, and a primary side winding;

[0038] Figure 7 is a flowchart of a method for producing a transformer according to an embodiment of the present invention;

[0039] Figure 8 is a schematic diagram showing that the primary side winding and the secondary side winding of the transformer form an included angle;

[0040] Figure 9 is a cross-sectional view of a transformer according to an embodiment of the present invention;

[0041] Figure 10 is a perspective view of a transformer skeleton according to an embodiment of the present invention;

[0042] Figure 11 is a cross-sectional view of a transformer skeleton according to an embodiment of the present invention;

[0043] Figure 12 is a side view of a transformer skeleton according to an embodiment of the present invention.

[0044] Reference numerals:

[0045] Transformer skeleton 10;

[0046] Winding column 1; First side plate 21; Pin area 211;

[0047] Second side plate 22; First safety margin 31; Body 311; Lead-out portion 312;

[0048] Second safety margin 32; First wire groove 41; Tapered section 411; Equal-width section 412; Inclined surface 413;

[0049] Second wire groove 42; First outer edge 421; Hanging wire bump 5; Anti-disengagement groove 51; Third wire groove 6;

[0050] Transformer 20;

[0051] Primary side winding 202; Primary side tape 203; Secondary side winding 204. Detailed implementation manners

[0052] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0053] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0054] In the description of the present invention, it should be noted that, unless otherwise clearly defined and limited, the terms "mounted", "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0055] The following refers to Figures 1 - 12 Describe in detail the transformer skeleton 10 according to an embodiment of the present invention.

[0056] As Figures 1 - 5 shown, the transformer skeleton 10 according to an embodiment of the present invention includes: a winding column 1, two side plates and at least one safety margin. The two side plates are respectively a first side plate 21 and a second side plate 22. The at least one safety margin includes a first safety margin 31. Among them, the winding column 1, the two side plates and the at least one safety margin are integrally formed. That is to say, the winding column 1, the first side plate 21, the second side plate 22 and the first safety margin 31 are integrally formed parts. The integrally formed parts can make the structure strength of the transformer skeleton 10 high, can prevent the transformer skeleton 10 from cracking, and the integrally formed transformer skeleton 10 can omit the installation process of the safety margin, saving the process of semi-automated manual adding of retaining wall tapes, which is beneficial to the implementation of automated production.

[0057] The first side plate 21 and the second side plate 22 are connected to the first side and the second side of the axial direction of the winding column 1. The axial direction is Figure 2In the up-down direction shown, the first safety edge 31 is disposed inside the first side plate 21, and the first safety edge 31 is also disposed on the outer periphery of the first side of the winding column 1. The first side plate 21 is provided with a plurality of first wire grooves 41, and the first safety edge 31 is provided with a plurality of second wire grooves 42. Each second wire groove 42 corresponds to and communicates with a first wire groove 41. As Figure 2 shown, the first side in the axial direction of the winding column 1 is the lower side of the winding column 1, and the second side in the axial direction of the winding column 1 is the upper side of the winding column 1. Among them, the first wire groove 41 and the second wire groove 42 communicating therewith can form an integral wire groove at the first side plate 21 and the first safety edge 31.

[0058] The primary side winding 202 and the secondary side winding 204 are adapted to be wound around the winding column 1. Among them, the incoming line ends and the outgoing line ends of the primary side winding 202 and the secondary side winding 204 can be respectively disposed in the first wire groove 41 and the second wire groove 42. In this way, the incoming line ends and the outgoing line ends of the primary side winding 202 and the secondary side winding 204 can be separated, which can better meet the safety regulations requirements. The primary side winding 202 in the present invention may include the primary coil, the feedback coil and the shielding coil of the transformer, and the secondary side winding 204 includes the secondary coil of the transformer.

[0059] As Figure 12 shown, at least one of the first wire groove 41 and the second wire groove 42 is configured with an inclined surface 413. The setting of the inclined surface 413 can increase the depth of the first wire groove 41 or the second wire groove 42, so as to increase the distance between the primary side winding 202 and the secondary side winding 204. The primary side winding 202 can be wound along the inclined surface 413, and the secondary side winding 204 can cross over from above the inclined surface 413. In this way, the winding difficulty of the transformer skeleton 10 can be effectively reduced, which is conducive to realizing automatic winding.

[0060] The inclined surface 413 in the first wire groove 41 and the inclined surface 413 in the second wire groove 42 are located in the same inclined surface 413. The inclined surface 413 arranged in this way can be conducive to the winding of the primary side winding 202 in the groove, and can further be conducive to realizing automatic winding.

[0061] Moreover, by integrally forming the first safety edge 31 on the winding column 1, it is possible to save the methods of adding a retaining wall tape, a winding folding tape, sleeving a Teflon tube, etc. to isolate and increase the safety distance, which can effectively solve the problem of insufficient safety distance, and can also save the semi-automatic manual adding retaining wall step, so as to realize the fully automatic production mode of the transformer 20.

[0062] Moreover, by fully automating the production of the transformer 20, the production efficiency can be improved, and the consistency of product quality can also be enhanced, thereby improving the quality of the product. At the same time, the transformer 20 can meet the domestic and international safety regulations requirements, expanding the application scope of the transformer 20, and thus making the universality and practicability of the transformer 20 better.

[0063] As Figure 11 shown, the first wire slot 41 is configured with a tapered section 411 whose width gradually decreases from the slot opening to the slot bottom. The tapered section 411 can facilitate the insertion of the lead wire and avoid contact between the lead wire and other structures, such as the primary winding 202 and the secondary winding 204. Additionally, the first wire slot 41 further includes: an equal-width section 412, which is connected between the tapered section 411 and the bottom of the first wire slot 41. The equal-width section 412 can be used to accommodate the lead wire and ensure the stability of the lead wire inside it, where the width of the equal-width section 412 is less than or equal to the minimum width of the tapered section 411. With such a configuration, the overall structure of the first wire slot 41 is stable and the design line is smooth.

[0064] Optionally, the first wire slot 41 is configured as a V shape. With such a configuration, the first wire slot 41 has a simple structure and reliable wiring.

[0065] The outer edge of the second wire slot 42 through which the primary winding 202 passes and is located at the outermost edge is the first outer edge 421. The first outer edge 421 of the second wire slot 42 does not exceed the winding center of the secondary winding 204 close to the second wire slot 42. It should be noted that the first safety edge 31 has a plurality of second wire slots 42. In actual production, there may be redundant second wire slots 42 through which the primary winding 202 does not pass; in the present invention, the "second wire slot 42 through which the primary winding 202 passes and is located at the outermost edge" refers to the wire slot located at the leftmost or rightmost of the first safety edge 31 among the second wire slots 42 through which the primary winding 202 passes. Additionally, the maximum distance by which the first outer edge 421 deviates from the center of the winding column 1 window of the transformer skeleton 10 should not exceed half of the wire diameter of the secondary winding 204. Or rather, the projection of the connection line from the center of the winding column 1 to the outer edge of the outermost second wire slot 42 on the first side plate 21 is L4, and the projection of the connection line from the center of the winding column 1 to the winding center of the secondary winding 204 close to the outermost second wire slot 42 on the first side plate 21 is L5, where L5 > L4. Among them, the edge of the first wire slot 41 is flush with the edge of the second wire slot 42.

[0066] Thus, it can ensure that the edges of the first wire groove 41 and the second wire groove 42 are within the window of the winding column 1 of the transformer skeleton 10, so as to ensure that the inlet and outlet ends of the primary winding 202 and the secondary winding 204 will not form a contact angle. Among them, mainly the second wire groove 42 arranged in this way can form a non-contact cross isolation in different layers between the primary winding 202 and the secondary winding 204. For example, it is like the "flyover" overhead mode.

[0067] For example, as Figure 9 shown, the left edge of the second wire groove 42 located on the far left is the first outer edge 421, and the winding center of the secondary winding 204 close to this second wire groove 42 is o. The first outer edge 421 is on the right side of the winding center o of the secondary winding 204. In the leftward direction, the first outer edge 421 does not exceed the winding center o of the secondary winding 204. Similarly, the second wire groove 42 located on the far right and the secondary winding 204 have the same relationship.

[0068] On the contrary, as Figure 8 shown, the edges of the second wire groove 42 located on the far left and the far right deviate from the center of the window of the winding column 1 of the transformer skeleton 10 by more than half of the wire diameter of the secondary winding 204, which causes an angle to be formed between the inlet and outlet ends of the primary winding 202 and the secondary winding 204. Among them, the angle here refers to the formation of a contact angle in the same space.

[0069] Among them, the second wire groove 42 is vertically connected to the corresponding first wire groove 41. The vertical connection method can make the winding of the primary winding 202 and the secondary winding 204 in the first wire groove 41 and the second wire groove 42 more smooth and natural, which is beneficial to the automatic winding of the windings.

[0070] Specifically, as Figures 2 - 4 shown, the width direction of the first safety edge 31 is the same as the axial direction of the winding column 1. The width of the first safety edge 31 is A and satisfies the relationship: 0.2mm ≤ A ≤ 3mm. Such a setting can ensure an appropriate safety distance, so as to further ensure meeting the requirements of safety regulations, and then ensure the working reliability of the transformer 20. Among them, the axial direction of the winding column 1 refers to Figure 3 the up and down direction in

[0071] Optionally, as Figure 2 and Figure 3As shown, the thickness direction of the first safety margin 31 is perpendicular to the axial direction of the winding post 1. The thickness of the first safety margin 31 is B, and the thickness of the first safety margin 31 satisfies the relationship: 0.2mm ≤ B ≤ 2mm. Such a setting can ensure that the thickness of the first safety margin 31 is flush with the primary side winding 202. The thickness of the first safety margin 31 is specifically designed flexibly according to the safety requirements of different products.

[0072] Furthermore, as Figure 1 shown, the thickness of the first safety margin 31 is B. The depth of the wire passing groove 4 is based on the thickness B of the first safety margin 31, with the shallowest floating up by 0.5mm and the deepest ensuring a minimum wall thickness of 0.4mm for the main body of the winding post 1 of the transformer skeleton 10. Therefore, the depth of the wire passing groove 4 can be C, and the wall thickness of the winding post 1 is D, where C ≥ 0.5mm and B + D - C ≥ 0.4mm. Such a setting can ensure that the inlet end and the outlet end of the primary side winding 202 do not float in the wire passing groove 4, and the primary side winding 202 can be deeply buried in the wire passing groove 4, so that the primary side winding 202 and the secondary side winding 204 can form a spatially isolated cross situation.

[0073] Specifically, a chamfer or a C-cut is provided at the axial outer end of the first wire passing groove 41. The surface of the chamfer or the C-cut is relatively smooth, which can make the corner at the axial outer end of the first wire passing groove 41 not sharp. When the inlet end and the outlet end of the primary side winding 202 and the secondary side winding 204 come into contact with the chamfer or the C-cut, it can prevent the primary side winding 202 and the secondary side winding 204 from being damaged when contacting the chamfer or the C-cut, thereby ensuring that the safety distance is not affected.

[0074] A chamfer or a C-cut is provided at the axial inner end of the second wire passing groove 42. The surface of the chamfer or the C-cut is relatively smooth, which can make the corners at both ends of the second wire passing groove 42 not sharp. When the inlet end and the outlet end of the primary side winding 202 and the secondary side winding 204 come into contact with the chamfer or the C-cut, it can prevent the primary side winding 202 and the secondary side winding 204 from being damaged when contacting the chamfer or the C-cut, thereby ensuring that the safety distance is not affected.

[0075] As Figure 2 shown, the transformer skeleton 10 further includes: a second safety margin 32. The second safety margin 32 is provided on the inner side of the second side plate 22 and also on the outer periphery of the second side of the winding post 1. Among them, the second safety margin 32 and the first safety margin 31 are arranged oppositely with respect to the winding post 1, with the same width and the same thickness.

[0076] Optionally, as Figure 2 、 Figure 3 and Figure 5As shown, hanging wire bumps 5 can also be provided on the second side plate 22. The hanging wire bumps 5 can serve as the hanging wire positions for shielding the primary side winding 202 and the secondary side winding 204, and can replace the semi - automated shielding buried wire method, thereby achieving the purpose of automated wire hanging by machine.

[0077] Moreover, a gap is left between the hanging wire bumps 5 and the second safety - regulation rib 32. For example, the distance between the position of the hanging wire bumps 5 and the second safety - regulation rib 32 in the up - down direction is 0.2 mm to 0.8 mm. This can set the hanging wire bumps 5 at a suitable working position, thereby ensuring the working performance of the hanging wire bumps 5. In addition, it can prevent the leads on the hanging wire bumps 5 from contacting the windings on the winding column 1, causing a short - circuit phenomenon.

[0078] Among them, the second safety - regulation rib 32 is provided with a third wire - passing groove 6. The third wire - passing groove 6 can allow the winding to pass through and be hung at the hanging wire bumps 5. Such a setting of the third wire - passing groove 6 is conducive to realizing automated winding.

[0079] Furthermore, the hanging wire bumps are provided with an anti - detachment structure, and the anti - detachment structure is provided with a plurality of anti - detachment grooves 51 distributed at intervals. The anti - detachment structure can enhance the wire - hanging ability of the hanging wire bumps and can prevent the hanging wire from falling off.

[0080] Furthermore, as Figure 1 shown, the cross - section of the winding column 1 can be rectangular, or circular, square, etc., as long as it can play the same role as the rectangle. Moreover, the inside of the winding column 1 is hollow. Such a setting can facilitate the assembly of the magnetic core inside the winding column 1, thereby ensuring the working characteristics of the transformer skeleton 10. And the minimum wall thickness D of the winding column 1 satisfies the relationship: D≥0.4 mm. This can make the winding column 1 have a certain structural strength, enable the winding column 1 to meet the working requirements, and thus ensure the working reliability of the winding column 1.

[0081] As Figure 2 shown, the first side plate 21 is provided with a pin area 211. The first safety - regulation rib 31 includes: a body 311 and a lead - out portion 312. The lead - out portion 312 extends from the body 311 towards the pin area 211. In other words, the first safety - regulation rib 31 is provided with a part extending towards the pin area 211, that is, the lead - out portion 312. The setting of the lead - out portion 312 can further facilitate the winding of the winding, can increase the distance between the contact positions of the primary side winding 202 and the secondary side winding 204, and the lead - out portion 312 can further strengthen the structural strength of the first side plate 21, can improve the overall strength of the transmission skeleton 10, and can extend the service life of the transmission skeleton 10.

[0082] Specifically, as Figure 2 and Figure 3As shown, the transformer skeleton 10 can be a vertical transformer skeleton 10. The first side plate 21 and the first safety regulation edge 31 are located on the lower side of the winding column 1 in the axial direction. That is to say, there are no wire grooves opened on the second safety regulation edge 32 and the second side plate 22 located on the upper side of the winding column 1 in the axial direction. Such a setting can separate the incoming or outgoing ends of the primary side winding 202 and the secondary side winding 204.

[0083] Optionally, the transformer skeleton 10 can be a horizontal transformer skeleton 10. Wire grooves 4 are opened on the safety regulation edges 3 and the side plates 2 located on both sides of the winding column 1 in the axial direction. That is to say, not only does the first side plate 21 have a plurality of first wire grooves 41, but the first safety regulation edge 31 also has a plurality of second wire grooves 42. Each second wire groove 42 corresponds to a first wire groove 41 communicating with it. The second safety regulation edge 32 also has a third wire groove 6, and the second side plate 22 also has a fourth wire groove. Each third wire groove 6 corresponds to a fourth wire groove communicating with it. Such a setting can better assemble the incoming or outgoing ends of the primary side winding 202 and the secondary side winding 204 in the wire groove 4, so as to better separate the incoming or outgoing ends of the primary side winding 202 and the secondary side winding 204, and further ensure the use safety.

[0084] As Figure 5 and Figure 6 As shown, the transformer 20 according to the embodiment of the present invention can include: the transformer skeleton 10 of the above embodiment, the primary side tape 203, the primary side winding 202, the secondary side tape, and the secondary side winding 204. The primary side winding 202 is wound around the transformer skeleton 10. It can also be understood that the primary side winding 202 is wound around the winding column 1 on the transformer skeleton 10. The primary side tape 203 is wound around the primary side winding 202, the secondary side winding 204 is wound around the primary side tape 203, and the secondary side tape is wound around the secondary side winding 204. Among them, the windings of the primary side winding 202 and the secondary side winding 204 respectively extend out through the wire groove 4. With such a setting of the primary side tape 203 and the secondary side tape, the primary side winding 202 and the secondary side winding 204 can be better isolated, so as to further ensure that the transformer 20 meets the safety regulation requirements. Among them, the primary side winding 202 can be an enameled wire, and the secondary side winding 204 can be a three-layer insulated wire. Such a setting can achieve a good insulation effect, thereby improving the working safety of the transformer 20.

[0085] In addition, there can be multiple primary side windings 202. For example, there can be two primary side windings 202. After winding one primary side winding 202 on the winding column 1, one primary side tape 203 can be wound, then another primary side winding 202 can be wound, then another primary side tape 203 can be wound, and then the secondary side winding 204 can be wound on the primary side tape 203.

[0086] Among them, the thickness of the first safety edge 31 is B, and the thickness of the primary winding 202 is E, where B≥E. The first safety edge 31 and the primary winding 202 arranged in this way can make the transformer meet the safety requirements and be conducive to the production and manufacturing of the transformer.

[0087] Similarly, the thickness of the second safety edge 32 is B, and the thickness of the primary winding 202 is E, where B≥E. The second safety edge 32 and the primary winding 202 arranged in this way can make the transformer meet the safety requirements and be conducive to the production and manufacturing of the transformer.

[0088] Optionally, the axial length of the primary tape 203 located between the first safety edge 31 and the second safety edge 32 is L1, and the axial length of the winding post 1 is L2, where 0.5mm≤L1 - L2≤2mm. The primary tape 203 is wound between the two primary windings 202, which can isolate the two primary windings 202, prevent conduction between the two primary windings 202, and further improve the working safety of the transformer 20.

[0089] Furthermore, the axial length of the winding post 1 is L2, the width of the first safety edge 31 and the second safety edge 32 is A, and the axial length of the primary tape 203 located between the primary winding 202 and the secondary winding 204 is L3, where 0.5mm≤L3 - L2 - 2A≤2mm. Such a setting can ensure that the primary tape 203 extends 0.5mm to 2mm beyond the safety edge 3, ensuring that the secondary winding 204 will not fall into the primary winding 202, that is, the secondary winding 204 will not come into contact with the primary winding 202, thus meeting the safety requirements.

[0090] The power supply according to the embodiment of the present invention includes the transformer of the above embodiment.

[0091] As Figure 7 shown, the method for producing the transformer 20 according to the embodiment of the present invention includes the following steps: S1. The primary winding 202 is wound around the winding post 1, the thickness of the primary winding 202 does not exceed the thickness of the first safety edge 31, and the primary tape 203 is wound around the primary winding 202; S2. The secondary winding 204 is wound around the primary tape 203; S3. The secondary tape is wound around the secondary winding 204. The transformer 20 arranged in this way can realize fully automated production, effectively isolate the primary winding 202 and the secondary winding 204, and thus perfectly avoid safety problems.

[0092] Furthermore, the method for manufacturing the transformer 20 may further include: in step S1, hanging the buried wire in the wire-hanging bump 5 on the second side plate 22, which can replace the semi-automatic method of shielding the buried wire, thereby achieving the purpose of automatic wire hanging by machine.

[0093] Also, in actual production, the transformer 20 generally includes multiple primary side windings 202. Therefore, step S1 further includes: on the basis of the primary side tape 203, winding at least one set of primary side windings 202 and primary side tapes 203. For example, on the basis of the primary side tape 203, winding one set of primary side windings 202 and primary side tapes 203. That is to say, on the basis of the primary side tape 203, first wind one primary side winding 202, then wind one primary side tape 203, and then proceed to step S2.

[0094] In summary, as can be concluded from Table 1 below, the improved transformer skeleton 20 can save nearly half of the labor during the production process, reduce the working hours, and also save the labor cost, thereby saving the manufacturing cost. Moreover, it can be increased from the original 10,000 Pcs / day to 20,000 Pcs / day, improving the efficiency by 50%, thus enhancing the production capacity efficiency. At the same time, the improved transformer skeleton 20 can achieve automatic production, making the product consistency stable and the efficiency high, thereby improving the overall performance of the product.

[0095]

[0096]

[0097] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0098] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A transformer skeleton, characterized in that, Comprising: A winding post, a first side plate, a second side plate, and a first safety margin. The first side plate and the second side plate are connected to the first side and the second side of the axial direction of the winding post. The first safety margin is arranged on the inner side of the axial direction of the first side plate, and the first safety margin is also arranged on the outer periphery of the first side of the winding post. The first side plate is provided with a plurality of first wire grooves, and the first safety margin is provided with a plurality of second wire grooves. Each of the second wire grooves corresponds to and communicates with a corresponding first wire groove. The primary side winding and the secondary side winding are adapted to be wound around the winding post. The outer edge of the second wire groove through which the primary side winding passes and is located at the outermost edge is the first outer edge, and the first outer edge does not exceed half of the wire diameter of the winding of the secondary side winding close to this second wire groove; The second wire groove is vertically communicated with the corresponding first wire groove that is communicated with it; The thickness direction of the first safety margin is perpendicular to the axial direction of the winding post. The thickness of the first safety margin is B, the depth of the second wire groove is C, and the depth direction of the second wire groove is the same as the thickness direction of the first safety margin. The wall thickness of the winding post is D, and the wall thickness D of the winding post satisfies the relationship: D≥0.4mm, where C≥0.5mm and B + D - C≥0.4mm.

2. The transformer skeleton according to claim 1, wherein The outer end of the axial direction of the first wire groove is provided with a chamfer or a C-notch, and / or the inner end of the axial direction of the second wire groove is provided with a chamfer or a C-notch.

3. The transformer skeleton according to claim 1, characterized in that, The width direction of the first safety margin is the same as the axial direction of the winding post. The width of the first safety margin is A and satisfies the relationship: 0.2mm≤A≤3mm.

4. The transformer skeleton according to claim 1, characterized in that, The thickness of the first safety margin is B and satisfies the relationship: B≤2mm.

5. The transformer skeleton according to claim 1, wherein Further comprising: A second safety margin, which is arranged on the inner side of the second side plate, and the second safety margin is also arranged on the outer periphery of the second side of the winding post.

6. The transformer skeleton according to claim 5, characterized in that, The second side plate is further provided with hanging wire bumps.

7. The transformer skeleton according to claim 6, wherein A gap is left between the hanging wire bumps and the second safety margin.

8. The transformer skeleton according to claim 6, characterized in that, The hanging wire bumps are provided with an anti-detachment structure, and the anti-detachment structure is provided with a plurality of anti-detachment grooves distributed at intervals.

9. The transformer skeleton according to claim 5, characterized in that, The second safety margin is provided with a third wire groove.

10. The transformer skeleton according to claim 1, wherein, The winding post is rectangular and the inside of the winding post is hollow.

11. The transformer skeleton according to claim 1, characterized in that, The first side plate is provided with a pin area. The first safety margin includes: a body and a lead-out portion, and the lead-out portion extends from the body to the pin area.

12. The transformer skeleton according to claim 1, characterized in that, The winding post, the first side plate, the second side plate, and the first safety margin are integrally formed.

13. The transformer skeleton according to any one of claims 1-12, characterized in that, The transformer skeleton is a vertical transformer skeleton, and the first side plate and the first safety margin are located on the lower side of the axial direction of the winding post.

14. The transformer skeleton according to claim 5, characterized in that, The transformer skeleton is a horizontal transformer skeleton. The second safety margin is provided with a third wire groove, and the second side plate is provided with a fourth wire groove. Each of the third wire grooves corresponds to and communicates with a corresponding fourth wire groove.

15. A transformer, characterized in that, Comprising: The transformer skeleton according to any one of claims 1-14; A primary side winding, which is wound around the transformer skeleton; A primary side tape, which is wound around the primary side winding; The secondary winding is wound around the primary tape; The secondary tape is wound around the secondary winding; wherein, the thickness direction of the first safety margin is perpendicular to the axial direction of the winding post, and the thickness direction of the primary winding is parallel to the axial direction of the winding post.

16. The transformer according to claim 15, characterized in that, The thickness of the first safety margin is B, and the thickness of the primary winding is E, where B≥E.

17. The transformer according to claim 15, characterized in that, It further includes a second safety margin, the thickness of the second safety margin is B, the thickness direction of the second safety margin is perpendicular to the axial direction of the winding post, and the thickness of the primary winding is E, where B≥E.

18. A power supply, characterized in that, It includes the transformer according to any one of claims 15-17.

19. A method for producing a transformer according to any one of claims 15-17, characterized in that, It includes the following steps: S1. The primary winding is wound around the winding post, the thickness of the primary winding does not exceed the thickness of the first safety margin, and the primary tape is wound around the primary winding; S2. The secondary winding is wound around the primary tape; S3. The secondary tape is wound around the secondary winding.

20. The method for producing a transformer according to claim 19, characterized in that, It further includes: In step S1, the buried wire is hung inside the wire hanging bump of the second side plate.

21. The method for producing a transformer according to claim 20, characterized in that, Step S1 further includes: on the basis of the primary tape, at least one more set of the primary winding and the primary tape is wound.

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