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 integrally formed, two side plates, and two safety regulation ribs. The two safety regulation ribs are arranged on the two axial sides of the winding column, the side plates are connected to the outer sides of the safety regulation ribs in the axial direction, and wire grooves are formed on at least one side of the safety regulation ribs and the side plates on the same side. Thus, through the cooperation of the winding column, the two side plates, and the two safety regulation ribs, a fully automated production mode of the transformer can be achieved, the production efficiency can be improved, the product quality consistency can also be improved, and moreover, the structure of the transformer skeleton is simple and the process is concise, thereby the manufacturing cost can be saved. At the same time, the transformer can meet the domestic and foreign safety regulation requirements, the application range of the transformer can be expanded, and thus the versatility and practicality of the transformer can be better.

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] Among the electronic products in the field of high-frequency switching power supplies, none of the transformer skeletons used can completely avoid safety regulations problems 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, there are the following two 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 side winding and the secondary side 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 problems, 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 requirements of safety regulations standards. The risk is high, which easily leads to an increase in customer complaint rates, affects the corporate image, and causes damage to interests. 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. To this end, the present invention provides a transformer skeleton, the structure of which is simple, can reduce the manufacturing cost, and can also be fully automated in 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 wire-winding column integrally formed, two side plates, and two safety regulations retaining edges. The two safety regulations retaining edges are arranged on both axial sides of the wire-winding column, the side plates are connected to the outer sides of the safety regulations retaining edges in the axial direction, and wire grooves are provided on at least one of the safety regulations retaining edges and the side plate on the same side.

[0010] According to the transformer skeleton of the present invention, through the cooperation of the winding posts, two side plates and two safety regulation ribs, a fully automated production mode of the transformer can be achieved, which can improve production efficiency and product quality consistency. Moreover, the structure of the transformer skeleton is simple and the process is concise, thus saving manufacturing costs. At the same time, the transformer can meet the safety regulation requirements at home and abroad, expanding the application range of the transformer, and thus making the universality and practicability of the transformer better.

[0011] Optionally, there are multiple wire passing grooves, which are spaced apart and distributed on the safety regulation rib and the side plate on the same side.

[0012] Further, a primary side winding and a secondary side winding are adapted to be wound on the winding post. The multiple wire passing grooves include a first wire passing groove for the primary side winding to pass through, and the outer edge of the outermost first wire passing groove does not exceed the winding center of the secondary side winding close to this first wire passing groove.

[0013] Specifically, the width direction of the safety regulation rib is the same as the axial direction of the winding post. The width of the safety regulation rib is A and satisfies the relationship: 0.2 mm ≤ A ≤ 3 mm.

[0014] Optionally, the thickness direction of the safety regulation rib is perpendicular to the axial direction of the winding post. The thickness of the safety regulation rib is B and satisfies the relationship: 0.2 mm ≤ B ≤ 2 mm.

[0015] Further, the thickness of the safety regulation rib is B, the depth of the wire passing groove is C, and the wall thickness of the winding post is D, where C ≥ 0.5 mm and B + D - C ≥ 0.4 mm.

[0016] Specifically, the two ends of the wire passing groove are provided with rounded corners or chamfered C corners.

[0017] Optionally, hanging wire bumps are further provided on the side plate.

[0018] Further, the winding post is rectangular and hollow inside. The wall thickness D of the winding post satisfies the relationship: D ≥ 0.4 mm.

[0019] Specifically, the transformer skeleton is a vertical transformer skeleton, and the wire passing grooves are provided on the safety regulation rib and the side plate on the lower side of the axial direction of the winding post.

[0020] Optionally, the transformer skeleton is a horizontal transformer skeleton, and the wire passing grooves are provided on the safety regulation ribs and the side plates on both sides of the axial direction of the winding post.

[0021] The transformer according to the present invention includes: the above-mentioned transformer skeleton, a primary side winding, a primary side tape, a secondary side winding, and a secondary side tape. The primary side winding is wound around the transformer skeleton; the primary side tape is wound around the primary side winding; the secondary side winding is wound around the primary side tape; the secondary side tape is wound around the secondary side winding. Wherein, the windings of the primary side winding and the secondary side winding respectively extend out through the wire grooves.

[0022] Optionally, the axial length of the primary side tape between the two safety barriers is L1, and the axial length of the winding post is L2, where 0.5 mm ≤ L1 - L2 ≤ 2 mm.

[0023] Further, the axial length of the winding post is L2, the width of the safety barrier is A, and the axial length of the primary side tape between the primary side winding and the secondary side winding is L3, where 0.5 mm ≤ L3 - L2 - 2A ≤ 2 mm.

[0024] The power supply according to the present invention includes the above-mentioned transformer.

[0025] The method for manufacturing the above-mentioned transformer according to the present invention includes the following steps: S1. The primary side winding is wound around the winding post, the thickness of the primary side winding is flush with the thickness of the safety barrier, 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.

[0026] Optionally, the method for manufacturing the transformer further includes: in step S1, hanging the buried wire in the wire hanging bumps on the side plate.

[0027] Optionally, 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

[0028] Figure 1 is a cross-sectional view of the transformer skeleton according to an embodiment of the present invention;

[0029] Figure 2 and Figure 3 is a front view of the transformer skeleton according to an embodiment of the present invention;

[0030] Figure 4 is a schematic diagram of the transformer skeleton according to an embodiment of the present invention;

[0031] Figure 5 A schematic diagram of the transformer according to an embodiment of the present invention;

[0032] Figure 6 It is an assembly drawing of a transformer skeleton, a primary side tape, and a primary side winding;

[0033] Figure 7 It is a flowchart of a method for manufacturing a transformer according to an embodiment of the present invention;

[0034] Figure 8 It is a schematic diagram in which the primary side winding and the secondary side winding of the transformer form an included angle;

[0035] Figure 9 It is a sectional view of a transformer according to an embodiment of the present invention.

[0036] Reference numerals:

[0037] Transformer skeleton 10;

[0038] Winding post 1; Side plate 2; Safety edge 3; Wire groove 4; Hanging point 5;

[0039] Transformer 20;

[0040] Primary side winding 202; Primary side tape 203; Secondary side winding 204. Detailed implementation manners

[0041] 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 only for explaining the present invention and should not be construed as limiting the present invention.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for facilitating the description of 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, and thus should not be construed as limiting the present invention. In addition, the 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.

[0043] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. 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 circumstances.

[0044] Reference will be made below Figures 1-9 to describe in detail the transformer bobbin 10 according to an embodiment of the present invention.

[0045] As Figures 1-7 shown, the transformer bobbin 10 according to an embodiment of the present invention includes: a wound column 1 integrally formed, two side plates 2, and two safety regulation edge guards 3. That is to say, the wound column 1, the two side plates 2, and the two safety regulation edge guards 3 are integrally formed parts. The integrally formed parts can make the transformer bobbin 10 have high structural strength, prevent the transformer bobbin 10 from cracking, and moreover, the integrally formed transformer bobbin 10 can omit the installation process of the safety regulation edge guards 3, eliminating the semi-automated process of manually adding retaining wall tapes, which is beneficial to the implementation of automated production.

[0046] The wound column 1 is adapted to wind a primary side winding 202 and a secondary side winding 204. The two safety regulation edge guards 3 are arranged on both axial sides of the wound column 1. The two side plates 2 are connected to the outer sides of the two safety regulation edge guards 3 in the axial direction. It can also be understood that one side plate 2 is connected to the outer side in the axial direction of one safety regulation edge guard 3. The safety regulation edge guards 3 and the side plates 2 on at least one side are provided with wire grooves 4. That is to say, the wire grooves 4 can be only provided on the safety regulation edge guards 3 and the side plates 2 on one axial side of the wound column 1, or the wire grooves 4 can be simultaneously provided on the safety regulation edge guards 3 and the side plates 2 on both axial sides of the wound column 1. The transformer bobbin 10 configured in this way has a simple structure and concise processes, thus saving manufacturing costs. The axial direction is Figure 2 the up and down direction as shown.

[0047] Among them, the inlet ends and outlet ends of the primary side winding 202 and the secondary side winding 204 can be respectively arranged in the wire grooves 4, so that the inlet ends and outlet ends of the primary side winding 202 and the secondary side winding 204 can be separated, which can better meet the safety regulation requirements.

[0048] Moreover, by integrally forming the two safety regulation edge guards 3 on both axial sides of the wound column 1, it is possible to omit the methods such as adding retaining wall tapes, winding folding tapes, and sleeving Teflon tubes to isolate and increase the safety distance, effectively solve the problem of insufficient safety regulation distance, and also omit the semi-automated step of manually adding retaining walls, thereby realizing the fully automated production mode of the transformer 20.

[0049] 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 practicality of the transformer 20 better.

[0050] Optionally, there can be multiple wire troughs 4, and the multiple wire troughs 4 are spaced apart and distributed on the safety margin 3 and the side plate 2 on the same side. It should be noted that the multiple wire troughs 4 on the same side are spaced apart. Such a setting can simultaneously meet the requirement of arranging the inlet and outlet ends of multiple primary windings 202 and secondary windings 204 in the multiple wire troughs 4, and can separate the inlet and outlet ends of multiple primary windings 202 and secondary windings 204, thereby further improving the working safety of the transformer 20. Among them, one wire trough 4 can be provided with the outlet end of one primary winding 202 or secondary winding 204.

[0051] Furthermore, the winding posts 1 are adapted to wind the primary winding 202 and the secondary winding 204. The multiple wire troughs 4 can include a first wire trough for the primary winding 202 to pass through. The first wire trough is the wire trough 4 located at the leftmost and rightmost ends of the transformer skeleton 10. The outer edge of the outermost first wire trough does not exceed the winding center of the secondary winding 204 close to this first wire trough. It should be noted that the wire troughs 4 located at the leftmost and rightmost ends are used for the primary winding 202 to pass through, and the edges of the wire troughs 4 located at the leftmost and rightmost ends deviate from the center of the window of the winding post 1 of the transformer skeleton 10 by a maximum distance not exceeding half of the wire diameter of the secondary winding 204. Or rather, the projection of the line connecting the center of the winding post 1 to the outer edge of the outermost wire trough 4 on the side plate 2 is L4, and the projection of the line connecting the center of the winding post 1 to the winding center of the secondary winding 204 close to the outermost wire trough 4 on the side plate 2 is L5, where L5 > L4. Thus, this can ensure that the edge of the wire trough 4 is within the window of the winding post 1 of the transformer skeleton 10, thereby ensuring 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 wire trough 4 arranged in this way can form a non-contact cross isolation in different layers of space between the primary winding 202 and the secondary winding 204. For example, it is in a mode similar to the "overpass" overhead.

[0052] For example, as Figure 9As shown, the left edge of the first wire groove located at the leftmost side is edge 41, the winding center of the secondary winding 204 close to this first wire groove is o, edge 41 is on the right side of the winding center o of the secondary winding 204, and in the leftward direction, edge 41 does not exceed the winding center o of the secondary winding 204. Similarly, the first wire groove located at the rightmost side and the secondary winding 204 have the same relationship.

[0053] On the contrary, as Figure 8 shown, the edges of the wire grooves 4 located at the leftmost and rightmost sides deviate from the center of the window of the winding post 1 of the transformer skeleton 10 by a distance exceeding half of the wire diameter of the secondary winding 204, which causes an angle to be formed between the incoming and outgoing ends of the primary winding 202 and the secondary winding 204. Herein, the angle refers to the formed contact angle in the same space.

[0054] Specifically, as Figures 2-4 shown, the width direction of the safety guard edge 3 is the same as the axial direction of the winding post 1, the width of the safety guard edge 3 is A and satisfies the relationship: 0.2mm ≤ A ≤ 3mm. Such a setting can ensure an appropriate safety distance, thereby further ensuring compliance with the safety regulations requirements, and further ensuring the working reliability of the transformer 20. Among them, the axial direction of the winding post 1 refers to Figure 3 the up and down direction in

[0055] Optionally, as Figure 2 and Figure 3 shown, the thickness direction of the safety guard edge 3 is perpendicular to the axial direction of the winding post 1, the thickness of the safety guard edge 3 is B, and the thickness of the safety guard edge 3 satisfies the relationship: 0.2mm ≤ B ≤ 2mm. Such a setting can ensure that the thickness of the safety guard edge 3 is flush with the primary winding 202, and the thickness of the safety guard edge 3 is specifically designed flexibly according to the safety regulations requirements of different products.

[0056] Furthermore, as Figure 1 shown, the thickness of the safety guard edge 3 is B, the depth of the wire groove 4 is based on the thickness B of the safety guard edge 3, floating up by at least 0.5mm at the shallowest, and at 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 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 incoming and outgoing ends of the primary winding 202 do not float in the wire groove 4, and the primary winding 202 can be deeply buried in the wire groove 4, so that the primary winding 202 and the secondary winding 204 can form a spatially isolated and crossed situation.

[0057] Specifically, chamfered corners or C-chamfers are provided at both ends of the wire trough 4. The surfaces of the chamfered corners or C-chamfers are relatively smooth, which can make the corners at both ends of the wire trough 4 not sharp. When the inlet and outlet ends of the primary winding 202 and the secondary winding 204 come into contact with the chamfered corners or C-chamfers, it can prevent the primary winding 202 and the secondary winding 204 from being damaged when contacting the chamfered corners or C-chamfers, thereby ensuring that the creepage distance will not be affected.

[0058] Optionally, as Figure 2 , Figure 3 and Figure 5 shown, hanging wire bumps 5 can also be provided on the side plates 2. The hanging wire bumps 5 can be provided on any one of the two side plates 2. For example, the hanging wire bumps 5 of the vertical transformer skeleton 10 are provided on the upper side plate 2, and the hanging wire bumps 5 of the horizontal transformer skeleton 10 can be provided only on the upper side plate 2 or can be provided on both side plates 2 at the same time. The hanging wire bumps 5 can serve as the hanging positions for shielding the primary winding 202 and the secondary winding 204, and can replace the semi-automatic shielding buried wire method, thereby achieving the purpose of machine automatic wire hanging. Moreover, the position of the hanging wire bumps 5 can deviate from the distance E from the creepage distance edge 3 by about 0.2 mm to 0.8 mm, so that the hanging wire bumps 5 can be set at a suitable working position, thereby ensuring the working performance of the hanging wire bumps 5.

[0059] Furthermore, as Figure 1 shown, the cross-section of the winding column 1 can be rectangular, or can be circular, square and other shapes, as long as it can play the same role as the rectangle, and 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 realization of 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, so that the winding column 1 has a certain structural strength, can make the winding column 1 meet the working requirements, and thereby ensure the working reliability of the winding column 1.

[0060] Specifically, as Figure 2 and Figure 3 shown, the transformer skeleton 10 can be a vertical transformer skeleton 10. Creepage distance troughs 4 are provided on the creepage distance edges 3 and the side plates 2 located on the lower side of the axial direction of the winding column 1. That is to say, no creepage distance troughs are provided on the creepage distance edges 3 and the side plates 2 located on the upper side of the axial direction of the winding column 1. Such a setting can separate the inlet or outlet ends of the primary winding 202 and the secondary winding 204.

[0061] Optionally, the transformer skeleton 10 can be a horizontal transformer skeleton 10. Wiring grooves 4 are provided on the safety regulation retaining edges 3 and the side plates 2 located on the two axial sides of the winding column 1. That is to say, the wiring grooves 4 are simultaneously provided on the safety regulation retaining edges 3 and the side plates 2 located on the two axial sides of the winding column 1. Such a setting can enable the inlet ends or outlet ends of the primary winding 202 and the secondary winding 204 to be better assembled in the wiring grooves 4, so that the inlet ends or outlet ends of the primary winding 202 and the secondary winding 204 can be better separated, thereby ensuring the use safety.

[0062] As Figure 5 and Figure 6 shown, the transformer 20 according to an embodiment of the present invention may include: the transformer skeleton 10 of the above embodiment, a primary side tape 203, a primary winding 202, a secondary side tape, and a secondary winding 204. The primary winding 202 is wound around the transformer skeleton 10. It can also be understood that the primary winding 202 is wound around the winding column 1 on the transformer skeleton 10. The primary side tape 203 is wound around the primary winding 202. The secondary winding 204 is wound around the primary side tape 203. The secondary side tape is wound around the secondary winding 204. Among them, the windings of the primary winding 202 and the secondary winding 204 respectively extend out through the wiring grooves 4. With such a setting of the primary side tape 203 and the secondary side tape, the primary winding 202 and the secondary winding 204 can be better isolated, thereby further ensuring that the transformer 20 meets the safety regulation requirements. Among them, the primary winding 202 can be an enameled wire, and the secondary winding 204 can be a triple-insulated wire. Such a setting can achieve a good insulation effect, thereby improving the working safety of the transformer 20.

[0063] In addition, there can be multiple primary windings 202. For example, there can be two primary windings 202. After one primary winding 202 is wound around the winding column 1, one primary side tape 203 can be wound, then another primary winding 202 can be wound, then another primary side tape 203 can be wound, and then the secondary winding 204 can be wound on the primary side tape 203.

[0064] Optionally, the axial length of the primary side tape 203 between the two safety regulation retaining edges 3 is L1, and the axial length of the winding column 1 is L2, where 0.5 mm ≤ L1 - L2 ≤ 2 mm. The primary side tape 203 is wound between the two primary windings 202, so as to play a role in isolating the two primary windings 202, prevent conduction between the two primary windings 202, and further improve the working safety of the transformer 20.

[0065] Further, the axial length of the winding post 1 is L2, the width of the safety margin 3 is A, and the axial length of the primary side tape 203 between the primary side winding 202 and the secondary side winding 204 is L3, where 0.5 mm ≤ L3 - L2 - 2A ≤ 2 mm. Such a setting can ensure that the primary side tape 203 extends 0.5 mm to 2 mm beyond the safety margin 3, which can ensure that the secondary side winding 204 will not fall into the primary side winding 202. That is to say, the secondary side winding 204 will not come into contact with the primary side winding 202, thus meeting the safety requirements.

[0066] The power supply according to an embodiment of the present invention includes the transformer 20 of the above embodiment. The transformer 20 is installed on the power supply. The transformer 20 can realize the fully automated production mode of the transformer 20, which can improve the production efficiency and the product quality consistency. Moreover, the structure of the transformer skeleton 10 of the transformer 20 is simple and the process is concise, thereby saving the manufacturing cost. At the same time, the transformer 20 can meet the domestic and foreign safety requirements, expanding the application range of the transformer 20, making the universality and practicability of the transformer 20 better, and further improving the working performance of the power supply.

[0067] As Figure 7 shown, the method for producing the transformer 20 according to an embodiment of the present invention includes the following steps: S1. The primary side winding 202 is wound around the winding post 1, and the primary side tape 203 is wound around the primary side winding 202. S2. The secondary side winding 204 is wound around the primary side tape 203. S3. The secondary side tape is wound around the secondary side winding 204. The transformer 20 arranged in this way can realize fully automated production, effectively isolating the primary side winding 202 and the secondary side winding 204, thus perfectly avoiding safety problems.

[0068] Further, the method for producing the transformer 20 may further include: in step S1, hanging the buried wire in the wire hanging bumps 5 on the side plate 2, which can replace the semi-automated method of shielding the buried wire, thus achieving the purpose of machine automated wire hanging.

[0069] Also, in actual production, the transformer 20 generally includes a plurality of primary side windings 202. Therefore, step S1 further includes: on the basis of the primary side tape 203, winding at least one more set of the primary side winding 202 and the primary side tape 203. For example, on the basis of the primary side tape 203, winding one more set of the primary side winding 202 and the primary side tape 203. That is to say, on the basis of the primary side tape 203, first wind a primary side winding 202, then wind a primary side tape 203, and then proceed to step S2.

[0070] The primary side tape 203. As described above, it can be concluded from Table 1 below that the improved transformer skeleton 20 can save nearly half of the labor during the production process, reduce working hours, and also save labor costs, thereby saving manufacturing costs. Moreover, the production capacity has increased from 10,000 Pcs / day to 20,000 Pcs / day, which can improve the efficiency by 50%, thus enhancing the production efficiency. At the same time, the improved transformer skeleton 20 can achieve automated production, making the product consistency stable and the efficiency high, thereby improving the overall performance of the product.

[0071]

[0072]

[0073] 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.

[0074] 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. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A transformer skeleton, characterized in that, Comprising: An integrally formed wire-winding column, two side plates, and two safety regulations retaining edges. The two safety regulations retaining edges are disposed on both axial sides of the wire-winding column. The two side plates are connected to the outer sides of the safety regulations retaining edges in the axial direction. Wire grooves are formed on at least one side of the safety regulations retaining edge and the side plate on the same side. There are multiple wire grooves, which are spaced apart and distributed on the safety regulations retaining edge and the side plate on the same side. The thickness of the safety regulations retaining edge is B, the thickness direction of the safety regulations retaining edge is perpendicular to the axial direction of the wire-winding column, the depth of the wire groove is C, the depth direction of the wire groove is the same as the thickness direction of the safety regulations retaining edge, the wall thickness of the wire-winding column is D, and the wall thickness D of the wire-winding column satisfies the relation: D≥0.4mm, where C≥0.5mm and B + D - C≥0.4mm. The multiple wire grooves include a first wire groove for the primary side winding to pass through, and the outer edge of the outermost first wire groove does not exceed half of the wire diameter of the winding of the secondary side winding close to this first wire groove.

2. The transformer skeleton according to claim 1, characterized in that, The wire-winding column is adapted to wind a primary side winding and a secondary side winding.

3. The transformer skeleton according to claim 1, characterized in that, The width direction of the safety regulations retaining edge is the same as the axial direction of the wire-winding column. The width of the safety regulations retaining edge is A and satisfies the relation: 0.2mm≤A≤3mm.

4. The transformer skeleton according to claim 1, characterized in that, The thickness of the safety regulations retaining edge is B and satisfies the relation: B≤2mm.

5. The transformer skeleton according to claim 1, characterized in that, Round corners or chamfered C corners are provided at both ends of the wire groove.

6. The transformer skeleton according to claim 1, characterized in that, Hanging wire bumps are further provided on the side plate.

7. The transformer skeleton according to claim 1, characterized in that, The wire-winding column is rectangular and hollow inside.

8. The transformer skeleton according to claim 1, characterized in that, The transformer skeleton is a vertical transformer skeleton, and the wire grooves are formed on the safety regulations retaining edge and the side plate on the lower side of the axial direction of the wire-winding column.

9. The transformer skeleton according to claim 1, characterized in that, The transformer skeleton is a horizontal transformer skeleton, and the wire grooves are formed on the safety regulations retaining edge and the side plate on both axial sides of the wire-winding column.

10. A transformer, characterized in that, Comprising: The transformer skeleton according to any one of claims 1-9; A primary side winding, the primary side winding is wound on the transformer skeleton; a primary side tape, the primary side tape is wound on the primary side winding; A secondary side winding, the secondary side winding is wound on the primary side tape; A secondary side tape, the secondary side tape is wound on the secondary side winding; Wherein, the windings of the primary side winding and the secondary side winding respectively extend out through the wire grooves.

11. The transformer according to claim 10, wherein The axial length of the primary side tape between the two safety regulations retaining edges is L1, and the axial length of the wire-winding column is L2, where 0.5mm≤L1 - L2≤2mm.

12. The transformer according to claim 10, characterized in that, The axial length of the wire-winding column is L2, and the width of the safety regulations retaining edge is A. Wherein, the width direction of the safety regulations retaining edge is the same as the axial direction of the wire-winding column. The axial length of the primary side tape between the primary side winding and the secondary side winding is L3, where 0.5mm≤L3 - L2 - 2A≤2mm.

13. A power supply, characterized in that, Including the transformer according to any one of claims 10-12.

14. A method of manufacturing a transformer according to any one of claims 10 - 12, characterized in that, Including the following steps: S1. The primary side winding is wound around the winding post. The thickness of the primary side winding is flush with the thickness of the safety margin, and the thickness direction of the primary side winding is the same as that of the safety margin. Wherein, the thickness direction of the safety margin is perpendicular to the axial direction of the winding post, 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.

15. The method for producing a transformer according to claim 14, characterized in that, It further includes: In step S1, the buried wire is hung inside the wire hanging bump of the side plate.

16. The method for producing a transformer according to claim 14, wherein, Step S1 further includes: On the basis of the primary side tape, at least one more group of the primary side winding and the primary side tape is wound.

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