Transformer framework, transformer winding and transformer

Abstract

The utility model discloses a transformer framework, a transformer winding and a transformer, the transformer framework is used for installing a coil, and the transformer framework comprises a first framework body, a plurality of pin supporting blocks, a plurality of pins and a protruding structure. The plurality of pin supporting blocks are sequentially arranged at intervals and are respectively connected with the first framework body, a lead wire groove is formed between every two adjacent pin supporting blocks, and a lead wire of a coil can penetrate through the lead wire grooves; each pin is connected to one end, deviating from the first framework body, of the corresponding pin supporting block, and the pins are used for being connected with wires of a coil; the protruding structure is arranged on the first framework body, the protruding structure is arranged on the side, facing the first framework body, of the pin supporting block, and the protruding structure is used for guiding a wire of the coil to enter the wire leading groove. The protruding structures are arranged on the sides, facing the first framework body, of the pin supporting blocks, so that the wires of the coil can be well isolated near the wire leading grooves, and the risk of short circuit caused by mutual contact of the wires is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a design structure for transformer short-circuit protection. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. It is mainly composed of an iron core and a coil. The coil has two or more windings, and each winding has two or more lead wires. The lead wires are generally fixed to one end of the winding through a wire slot and connected to the pins through soldering technology. However, the high temperature during soldering may damage the insulation layer of the copper wire. When there are many windings, the contact area between the copper wires near the pins is larger, which has a greater risk of short circuit. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a transformer skeleton and a transformer, which can reduce the risk of short circuit.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A transformer skeleton, used for installing a coil, comprises: a first skeleton body; a plurality of pin support blocks, wherein the plurality of pin support blocks are arranged in sequence at intervals, each of the pin support blocks is respectively connected to the first skeleton body, and a lead groove is arranged between each two adjacent pin support blocks, wherein the lead groove is used for allowing the wire of the coil to pass through; a plurality of pins, wherein each pin is connected to one end of the pin support block away from the first skeleton body, wherein the pin is used for connecting the wire of the coil; a protrusion structure, wherein the protrusion structure is arranged on the first skeleton body, and the protrusion structure is arranged on the side of the pin support block facing the first skeleton body, wherein the protrusion structure is used for guiding the wire of the coil into the lead groove.

[0006] As a further improvement of the above technical solution:

[0007] Several of the pin support blocks include a first pin support block, a first lead groove is provided on one side of the first pin support block along the first direction, and the first two ends of the first pin support block along the second direction are respectively connected to the first skeleton body and the pin; the protruding structure includes a first protruding portion, the first protruding portion is connected to an end of the first pin support block away from the pin, and the first protruding portion is used to guide the wire of the coil into the first lead groove; wherein, the first direction is perpendicular to the second direction.

[0008] One end of the first raised portion facing away from the first pin support block is provided with a first inclined surface, which is inclined with respect to the first direction, and the first inclined surface is used to guide the wire of the coil into the first lead groove.

[0009] The plurality of pin support blocks include a second pin support block and a third pin support block. The second pin support block and the third pin support block are arranged at intervals in the first direction. A second lead groove is provided on a side of the second pin support block facing away from the third pin support block. Two ends of the second pin support block in the second direction are respectively connected to the first skeleton body and the pin, and two ends of the third pin support block in the second direction are respectively connected to the first skeleton body and the pin; the raised structure includes a second raised portion, and the second raised portion is respectively connected to one ends of the second pin support block and the third pin support block facing away from the pin, and the second raised portion is used to guide the wire of the coil into the second lead groove; wherein, the first direction is perpendicular to the second direction.

[0010] One end of the second raised portion facing away from the second pin support block is provided with a second inclined surface, which is inclined with respect to the first direction, and the second inclined surface is used to guide the wire of the coil into the second lead groove.

[0011] The raised structure includes a first raised portion and a second raised portion, and the first raised portion and the second raised portion are arranged at intervals; a first lead groove is provided on a side of the first raised portion facing away from the second raised portion, and the first raised portion is used to guide the wire of the coil into the first lead groove; a second lead groove is provided on a side of the second raised portion facing the first raised portion, and the second raised portion is used to guide the wire of the coil into the second lead groove.

[0012] One end of the first raised portion facing away from the pin support block is provided with a first inclined surface, which is inclined with respect to the first direction, and the first inclined surface is used to guide the wire of the coil into the first lead groove; one end of the second raised portion facing away from the pin support block is provided with a second inclined surface, which is inclined with respect to the first direction, and the second inclined surface is used to guide the wire of the coil into the second lead groove; wherein, the inclination angles of the first inclined surface and the second inclined surface are different.

[0013] A wire routing baffle is provided on the first skeleton body, and the wire routing baffle is arranged on a side of the raised structure facing away from the pin support block. A wire routing groove is provided between the wire routing baffle and the raised structure, and the wire routing groove is used for the wire of the coil to pass through; and / or a coil baffle is provided on the first skeleton body, and a winding groove is provided between the coil baffle and the first skeleton body, and the winding groove is used for winding the coil.

[0014] The transformer skeleton further includes a second skeleton body; a receiving hole is provided in the middle of the first skeleton body, and the second skeleton body is inserted into the receiving hole.

[0015] A transformer winding includes: the above-mentioned transformer skeleton; a coil wound around the transformer skeleton.

[0016] A transformer includes: the above-mentioned transformer winding.

[0017] Compared with the prior art, the advantages of the present utility model are as follows:

[0018] The present utility model provides a transformer skeleton, a transformer winding and a transformer. In the transformer skeleton, the first skeleton body is used to wind a coil to form a transformer winding. A convex structure is provided on the side of the pin support block facing the first skeleton body, so that each wire can be better separated near the lead groove, effectively reducing the risk of short circuit caused by the damaged parts of each wire contacting each other, thereby improving the stability and use safety of the transformer. Description of the Drawings

[0019] Figure 1 It is a first perspective three-dimensional view of the transformer skeleton in the embodiment.

[0020] Figure 2 It is a top view of the transformer skeleton in the embodiment.

[0021] Figure 3 It is a second perspective three-dimensional view of the transformer skeleton in the embodiment.

[0022] Figure 4 It is a side view of the transformer skeleton in the embodiment.

[0023] Each label in the figure represents:

[0024] 1. First skeleton body; 11. Receiving hole; 2. Pin support block; 2a. First pin support block; 2b. Second pin support block; 2c. Third pin support block; 21. Lead groove; 21a. First lead groove; 21b. Second lead groove; 3. Pin; 4. Convex structure; 41. First convex part; 411. First inclined surface; 42. Second convex part; 421. Second inclined surface; 5. Wiring baffle; 51. Wiring groove; 6. Coil baffle; 61. Winding groove; 7. Second skeleton body. Detailed Embodiments

[0025] The following will further describe the present utility model in detail with reference to the drawings of the specification and specific embodiments.

[0026] Figure 1The transformer skeleton of the present embodiment is shown, which is used to install the coil, including: a first skeleton body 1, a plurality of pin support blocks 2, a plurality of pins 3 and a protruding structure 4. The plurality of pin support blocks 2 are arranged in sequence and spaced apart, and each pin support block 2 is respectively connected to the first skeleton body 1, and a lead groove 21 is arranged between each two adjacent pin support blocks 2, and the lead groove 21 is used for the wire of the coil to pass through. Among them, the number of pins 3 is the same as that of pin support blocks 2, and each pin 3 is connected to one end of a pin support block 2 away from the first skeleton body 1, and the pin 3 is used to connect the wire of the coil. The protruding structure 4 is arranged on the first skeleton body 1, and the protruding structure 4 is arranged on the side of the pin support block 2 facing the first skeleton body 1, and the protruding structure 4 is used to guide the coil into the lead groove 21.

[0027] In this embodiment, the first skeleton body 1 is used to wind a wire to form a coil, and the surface of the wire is covered with an insulating layer. One end of the wire passes through the lead slot 21 and is welded to the pin 3. Affected by the high temperature during welding, the insulating layer of the wire near the lead slot 21 is at a greater risk of damage. When the coil is wound with multiple wires, each wire is arranged in a corresponding lead slot 21, but the ends of several pin support blocks 2 facing the first skeleton body 1 are flush, that is, multiple wires overlap when they are wound from the first skeleton body 1 to the lead slot 21, and multiple wires with damaged insulating layers may conduct electricity and short-circuit. A protruding structure 4 is provided on the side of the pin support block 2 facing the first skeleton body 1, so that each wire can be better isolated near the lead slot 21, effectively reducing the risk of short-circuiting caused by the damaged parts of each wire contacting each other, so as to improve the stability and safety of the transformer.

[0028] like Figure 2 , 3 As shown, in this embodiment, the plurality of pin support blocks 2 include a first pin support block 2a, a second pin support block 2b and a third pin support block 2c which are arranged in sequence along the first direction X, and the first pin support block 2a, the second pin support block 2b and the third pin support block 2c are respectively provided with a pin 3. Among them, a first lead groove 21a is provided on the side of the first pin support block 2a away from the second pin support block 2b, and a second lead groove 21b is provided between the first pin support block 2a and the second pin support block 2b, and the first lead groove 21a and the second lead groove 21b are respectively used for the wire of the coil to pass through. It should be noted that the number of the plurality of pin support blocks 2 can be set according to actual needs, for example, one or both of the first pin support block 2a, the second pin support block 2b and the third pin support block 2c can be omitted, or a fourth pin support block, a fifth pin support block, etc. can be added, which is not limited here.

[0029] The convex structure 4 includes a first convex portion 41 and a second convex portion 42 that are spaced apart along the first direction X. The first convex portion 41 and the second convex portion 42 are respectively disposed on the first skeleton body 1, and the first convex portion 41 is connected to the first pin support block 2a, and the second convex portion 42 is respectively connected to the second pin support block 2b and the third pin support block 2c. Wherein, the first convex portion 41 is used to guide the wire of the coil into the first lead groove 21a, and the second convex portion 42 is used to guide the wire of the coil into the second lead groove 21b.

[0030] Specifically, both ends of the first pin support block 2a along the second direction Y are respectively connected to the first skeleton body 1 and the pin 3. The first convex portion 41 is disposed at one end of the first pin support block 2a away from the pin 3, and the first convex portion 41 is disposed on one side of the first lead groove 21a along the first direction X. One end of the first convex portion 41 away from the first pin support block 2a is provided with a first inclined surface 411, and the first inclined surface 411 is inclined with respect to the first direction X, that is, the thickness of the first convex portion 41 along the second direction Y gradually decreases from the side away from the first lead groove 21a to the other side. The first inclined surface 411 is used to guide the wire of the coil into the first lead groove 21a.

[0031] One end of the second pin support block 2b and the third pin support block 2c along the second direction Y are respectively connected to the first skeleton body 1, and the other ends of the second pin support block 2b and the third pin support block 2c are respectively connected to a pin 3. The second convex portion 42 is disposed at one end of the second pin support block 2b away from the pin 3, and the second convex portion 42 is disposed on one side of the second lead groove 21b along the first direction X. One end of the first convex portion 42 away from the second pin support block 2b is provided with a second inclined surface 412, and the second inclined surface 412 is inclined with respect to the first direction X, that is, the thickness of the second convex portion 42 along the second direction Y gradually decreases from the side away from the second lead groove 21b to the other side. The second inclined surface 412 is used to guide the wire of the coil into the second lead groove 21b.

[0032] It should be noted that in some other embodiments, the second convex portion 42 may also be only connected to the second pin support block 2b or only connected to the third pin support block 2c, or, on the side of the third pin support block 2c away from the second pin support block 2b, there is also other pin support block, and the second convex portion is respectively connected to the second pin support block 2b, the third pin support block 2c and the other pin support block, as long as it can meet the actual use requirements, which is not limited herein.

[0033] Among them, the inclination angles of the first inclined surface 411 and the second inclined surface 412 are different, that is, there is an included angle between the first inclined surface 411 and the second inclined surface 412, so that the wires bypassing the first inclined surface 411 and entering the first lead groove 21a will not overlap with the wires bypassing the second inclined surface 412 and entering the second lead groove 21b, thereby avoiding short circuits between the two wires after the insulation layer is damaged.

[0034] It can be understood that in some other embodiments, only one of the above-mentioned first convex portion 41 and second convex portion 42 may be provided, and the number of the first convex portion and the second convex portion may also be set according to actual needs. For example, only 1 or more first convex portions may be provided, or only 1 or more second convex portions may be provided, or 1 or more first convex portions and second convex portions may be provided at the same time, which is not limited herein.

[0035] As Figure 3 , 4 shown, a wire routing baffle 5 is provided on the first skeleton body 1. The wire routing baffle 5 is arranged on the side of the convex structure 4 away from the pin support block 2. A wire routing groove 51 is provided between the wire routing baffle 5 and the convex structure 4. The wire routing groove 51 is used for the wire of the coil to pass through. One end of the wire of the coil is wound around the first skeleton body 1, and the other end of the wire of the coil sequentially passes through the wire routing groove 51, the convex structure 4, and the lead groove 21 and then is connected to the pin 3.

[0036] Furthermore, a coil baffle 6 is also provided on the first skeleton body 1. A winding groove 61 is provided between the coil baffle 6 and the first skeleton body 1. The winding groove 61 is used for winding the coil. Among them, along the third direction Z, the coil baffle 6 and the wire routing baffle 5 are arranged on two opposite surfaces of the first skeleton body 1, and along the second direction Y, the winding groove 61 is arranged on the side of the wire routing groove 51 away from the convex structure 4, and one end of the wire of the coil is wound in the winding groove 61.

[0037] In some embodiments, the transformer skeleton further includes a second skeleton body 7. A receiving hole 11 is provided in the middle of the first skeleton body 1. The receiving hole 11 penetrates the first skeleton body 1 along the third direction Z, and the second skeleton body 7 is inserted into the receiving hole 11. A plurality of second pin support blocks are provided on the second skeleton body, and each second pin support block is provided with a second pin. The second skeleton body is used for winding the second coil.

[0038] This application also provides a transformer winding, including the above-mentioned transformer skeleton and a coil (not shown in the figure), and the coil is wound around the transformer skeleton.

[0039] This application also provides a transformer, including the above-mentioned transformer winding.

[0040] Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can, without departing from the scope of the technical solution of the present utility model, make many possible changes and modifications to the technical solution of the present utility model by using the technical content disclosed above, or modify it into an equivalent embodiment with equivalent changes. Therefore, all content that does not depart from the technical solution of the present utility model, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model shall fall within the scope of protection of the technical solution of the present utility model.

Claims

1. A transformer frame for mounting a coil, characterized in that: include: A first skeleton body (1); A plurality of pin support blocks (2), wherein the plurality of pin support blocks (2) are arranged in sequence at intervals, each of the pin support blocks (2) is respectively connected to the first skeleton body (1), and a lead groove (21) is provided between each two adjacent pin support blocks (2), and the lead groove (21) is used for allowing the wire of the coil to pass through; A plurality of pins (3), each of the pins (3) being connected to an end of the pin support block (2) facing away from the first skeleton body (1), and the pins (3) being used to connect a wire of the coil; A protruding structure (4), the protruding structure (4) being arranged on the first skeleton body (1), and the protruding structure (4) being arranged on a side of the pin support block (2) facing the first skeleton body (1), the protruding structure (4) being used to guide the wire of the coil into the lead groove (21).

2. The transformer skeleton according to claim 1, characterized in that: A plurality of the pin support blocks (2) are arranged at intervals along a first direction, and the plurality of the pin support blocks (2) include a first pin support block (2a), a first lead groove (21a) is provided on one side of the first pin support block (2a) along the first direction, and two ends of the first pin support block (2a) along the second direction are respectively connected to the first skeleton body (1) and the pin (3); The protruding structure (4) comprises a first protruding portion (41), the first protruding portion (41) being connected to an end of the first pin supporting block (2a) facing away from the pin (3), the first protruding portion (41) being used to guide the wire of the coil into the first lead groove (21a); The first direction is perpendicular to the second direction.

3. The transformer skeleton according to claim 2, characterized in that: A first inclined surface (411) is provided at one end of the first protrusion (41) facing away from the first pin support block (2a), the first inclined surface (411) being arranged obliquely relative to the first direction, and the first inclined surface (411) being used to guide the wire of the coil into the first lead groove (21a).

4. The transformer skeleton according to claim 1, characterized in that: The plurality of pin support blocks (2) include a second pin support block (2b) and a third pin support block (2c), the second pin support block (2b) and the third pin support block (2c) are arranged at intervals along a first direction, a second lead groove (21b) is provided on a side of the second pin support block (2b) away from the third pin support block (2c), two ends of the second pin support block (2b) along the second direction are respectively connected to the first skeleton body (1) and the pin (3), and two ends of the third pin support block (2c) along the second direction are respectively connected to the first skeleton body (1) and the pin (3); The protruding structure (4) comprises a second protruding portion (42), the second protruding portion (42) being respectively connected to one end of the second pin supporting block (2b) and the third pin supporting block (2c) facing away from the pin (3), the second protruding portion (42) being used to guide the wire of the coil into the second lead groove (21b); The first direction is perpendicular to the second direction.

5. The transformer skeleton according to claim 4, characterized in that: A second inclined surface (421) is provided at one end of the second protrusion (42) facing away from the second pin support block (2b), the second inclined surface (421) being arranged obliquely relative to the first direction, and the second inclined surface (421) being used to guide the wire of the coil into the second lead groove (21b).

6. The transformer skeleton according to claim 1, characterized in that: The protruding structure (4) comprises a first protruding portion (41) and a second protruding portion (42), wherein the first protruding portion (41) and the second protruding portion (42) are arranged at an interval; A first lead groove (21a) is provided on a side of the first protrusion (41) facing away from the second protrusion (42), and the first protrusion (41) is used to guide the wire of the coil into the first lead groove (21a); A second lead groove (21b) is provided on one side of the second protrusion (42) facing the first protrusion (41), and the second protrusion (42) is used to guide the wire of the coil into the second lead groove (21b).

7. The transformer skeleton according to claim 6, characterized in that: A first inclined surface (411) is provided at one end of the first protrusion (41) facing away from the pin support block (2), the first inclined surface (411) being arranged to be inclined relative to a first direction, and the first inclined surface (411) being used to guide the wire of the coil into the first lead groove (21a); A second inclined surface (421) is provided at one end of the second protrusion (42) facing away from the pin support block (2), the second inclined surface (421) being arranged obliquely relative to the first direction, and the second inclined surface (421) being used to guide the wire of the coil into the second lead groove (21b); The first inclined surface (411) and the second inclined surface (421) have different inclination angles.

8. The transformer skeleton according to claim 1, characterized in that: A wiring baffle (5) is provided on the first skeleton body (1), the wiring baffle (5) is arranged on a side of the protruding structure (4) away from the pin support block (2), a wiring groove (51) is provided between the wiring baffle (5) and the protruding structure (4), the wiring groove (51) is used for allowing the wire of the coil to pass through; and / or A coil baffle (6) is provided on the first skeleton body (1), and a winding groove (61) is provided between the coil baffle (6) and the first skeleton body (1), and the winding groove (61) is used for winding a coil.

9. The transformer skeleton according to any one of claims 1 to 8, characterized in that: The transformer skeleton also includes a second skeleton body (7); A receiving hole (11) is provided in the middle of the first skeleton body (1), and the second skeleton body (7) is inserted into the receiving hole (11).

10. A transformer winding, characterized in that: include: The transformer skeleton according to any one of claims 1 to 9; The coil is wound around the transformer frame.

11. A transformer, characterized in that: include: The transformer winding as claimed in claim 10.

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