Transformer and electric equipment

Abstract

The embodiment of the utility model discloses a transformer and electric equipment. The transformer comprises a circuit board, an insulating plate, a winding assembly and a magnetic core assembly, the circuit board is provided with a first through hole; the insulating plate is provided with a second through hole, and the first through hole is aligned with the second through hole; the winding assembly comprises a first coil winding and a second coil winding, the first coil winding is stacked on one side of the insulating plate, and the second coil winding is stacked on the other side of the insulating plate; the magnetic core assembly comprises a first magnetic core and a second magnetic core, the first magnetic core is provided with a first magnetic core column, the first magnetic core column penetrates through the first coil winding and then is inserted into the second through hole, the second magnetic core is provided with a second magnetic core column, the second magnetic core column penetrates through the second coil winding and the first through hole and then is inserted into the second through hole, and the first magnetic core column abuts against the second magnetic core column. Compared with the mode that the coil winding is wound on the framework, the insulating plates replace the framework, the thickness of the transformer is reduced in a stacking and penetrating mode, and the transformer can be lightened and thinned easily.

Description

TECHNICAL FIELD

[0001] The embodiment of the utility model relates to transformer technical field, especially a kind of transformer and electrical equipment. BACKGROUND

[0002] Transformer is a kind of using electromagnetic induction principle, it can convert the AC power of one voltage and current level into the AC power of another different voltage and current level, while keeping frequency unchanged. Transformer is usually used to raise or lower voltage to meet the needs of different loads or circuits.

[0003] At present, transformer usually includes framework, magnetic core and coil winding, wherein, magnetic core is inserted in framework, coil winding is wound in framework. However, magnetic core is inserted in framework, coil winding is wound in framework, which is easy to increase the thickness of transformer, and is not conducive to the development of light and thin transformer. UTILITY MODEL CONTENT

[0004] The embodiment of the utility model aims at providing a kind of transformer and electrical equipment, which can reduce the volume of transformer, and help to realize light and thin.

[0005] To solve the above technical problems, one technical scheme adopted by the embodiment of the utility model is to provide a kind of transformer, including circuit board, insulating plate, winding assembly and magnetic core assembly;Circuit board is provided with first through hole;Insulating plate is arranged on the circuit board, and the insulating plate is provided with second through hole, and along the thickness direction of the circuit board, the first through hole is aligned with the second through hole;Winding assembly includes first coil winding and second coil winding, and along the thickness direction of the circuit board, the first coil winding is stacked on one side of the insulating plate, the second coil winding is stacked on the other side of the insulating plate, and the insulating plate separates the first coil winding and second coil winding;Magnetic core assembly includes first magnetic core and second magnetic core, the first magnetic core is provided with first magnetic core column, and along the thickness direction of the circuit board, the first magnetic core column is inserted into the second through hole after passing through the first coil winding, the second magnetic core is provided with second magnetic core column, and along the thickness direction of the circuit board, the second magnetic core column is inserted into the second through hole after passing through the second coil winding and first through hole, and the first magnetic core column and the second magnetic core column abut;Wherein, one of the first coil winding and second coil winding is used to connect power supply, and the other of the first coil winding and second coil winding is used to connect load.

[0006] Optionally, the first magnetic core is provided with a first recess, the first recess is arranged around the first magnetic core column, and the first coil winding is accommodated in the first recess.

[0007] Optionally, the second magnetic core is provided with a second groove, the second groove is arranged around the second magnetic core column, and the second coil winding is accommodated in the second groove.

[0008] Optionally, the first magnetic core is provided with a first gap, the first gap is communicated with the side wall of the first groove, and the two ends of the first coil winding protrude out of the first groove through the first gap.

[0009] Optionally, the second magnetic core is provided with a second gap, the second gap is communicated with the side wall of the second groove, and the two ends of the second coil winding protrude out of the second groove through the second gap.

[0010] Optionally, the insulating plate comprises a first connecting part, a first clamping part, a blocking part, a second clamping part and a second connecting part connected in sequence, the first connecting part and the second connecting part are connected to the circuit board respectively, along the thickness direction of the circuit board, the first clamping part, the blocking part and the second clamping part are aligned with the first through hole, and the second through hole is located in the blocking part.

[0011] Optionally, the first magnetic core is provided with a first gap, the first gap is communicated with the side wall of the first groove, and the two ends of the first coil winding protrude out of the first groove through the first gap.

[0012] Optionally, the transformer comprises a first heat dissipation member connected to one side of the first magnetic core away from the second magnetic core, the cross-sectional area of the first heat dissipation member is greater than the cross-sectional area of the first magnetic core; the transformer comprises a second heat dissipation member connected to one side of the second magnetic core away from the first magnetic core, and the cross-sectional area of the second heat dissipation member is greater than the cross-sectional area of the second magnetic core.

[0013] Optionally, the transformer comprises a first heat dissipation member connected between the first heat dissipation member and the first magnetic core, the heat dissipation efficiency of the first heat dissipation member is greater than the heat dissipation efficiency of the first heat dissipation member; the transformer comprises a second heat dissipation member connected between the second heat dissipation member and the second magnetic core, and the heat dissipation efficiency of the second heat dissipation member is greater than the heat dissipation efficiency of the second heat dissipation member.

[0014] To solve the above technical problems, another technical scheme of the embodiment of the utility model provides a kind of electric equipment, including above-mentioned transformer.

[0015] The beneficial effects of the embodiment of the utility model are as follows: different from the prior art, the embodiment of the utility model provides a transformer, which includes a circuit board, an insulating plate, a winding assembly and a magnetic core assembly; the circuit board is provided with a first through hole; the insulating plate is arranged on the circuit board, and the insulating plate is provided with a second through hole; along the thickness direction of the circuit board, the first through hole is aligned with the second through hole; the winding assembly includes a first coil winding and a second coil winding; along the thickness direction of the circuit board, the first coil winding is stacked on one side of the insulating plate, and the second coil winding is stacked on the other side of the insulating plate; the insulating plate separates the first coil winding and the second coil winding; the magnetic core assembly includes a first magnetic core and a second magnetic core; the first magnetic core is provided with a first magnetic core column; along the thickness direction of the circuit board, the first magnetic core column passes through the first coil winding and is inserted into the second through hole; the second magnetic core is provided with a second magnetic core column; along the thickness direction of the circuit board, the second magnetic core column passes through the second coil winding and the first through hole and is inserted into the second through hole; the first magnetic core column and the second magnetic core column are in abutment; one of the first coil winding and the second coil winding is used to connect a power supply, and the other of the first coil winding and the second coil winding is used to connect a load. Compared with the coil winding wound on the framework, by the above-mentioned mode, the insulating plate of the embodiment of the utility model replaces the framework, and the thickness of the transformer is reduced by using the stacking and inserting mode, which helps to thin the transformer. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the specific embodiments of the utility model or prior art, the drawings needed to be used in the description of specific embodiments or prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual proportion.

[0017] Figure 1 is the overall structure schematic diagram of the transformer provided by the embodiment of the utility model;

[0018] Figure 2 is the overall structure explosion diagram of the transformer provided by the embodiment of the utility model;

[0019] Figure 3 is the structure schematic diagram of the first magnetic core of the transformer provided by the embodiment of the utility model;

[0020] Figure 4 is the structure schematic diagram of the second magnetic core of the transformer provided by the embodiment of the utility model;

[0021] Figure 5 is the overall structure sectional view of the transformer provided by the embodiment of the utility model;

[0022] Figure 6 is a structural schematic view of the first heat dissipation member and the second heat dissipation member of the transformer, provided by the embodiment of the utility model;

[0023] Figure 7 is a structural schematic view of the first heat conduction member and the second heat conduction member of the transformer, provided by the embodiment of the utility model.

[0024] Mark explanation:

[0025] 1 circuit board, 11 first through hole;

[0026] 2 insulating plate, 21 second through hole, 22 first connecting part, 23 first clamping part, 24 barrier part, 25 second clamping part, 26 second connecting part, 271 first pin, 272 second pin, 273 third pin, 274 fourth pin;

[0027] 3 winding assembly, 31 first coil winding, 32 second coil winding, 33 third coil winding, 34 fourth coil winding;

[0028] 4 magnetic core assembly, 41 first magnetic core, 411 first magnetic core column, 412 first recess, 413 first gap, 414 first clamping hole, 415 third recess, 416 third gap, 417 third clamping hole, 42 second magnetic core, 421 second magnetic core column, 422 second recess, 423 second gap, 424 second clamping hole, 425 fourth recess, 426 fourth gap, 427 fourth clamping hole;

[0029] 51 first heat dissipation member, 52 second heat dissipation member;

[0030] 61 first heat conduction member, 62 second heat conduction member;

[0031] 7 screw;

[0032] 100 transformer. Specific implementation

[0033] For the convenience of understanding the utility model, the utility model will be explained in more detail below in combination with the drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element or one or more intervening elements can be present therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element or one or more intervening elements can be present therebetween. The terms "upper", "lower", "inner", "outer", "vertical", "horizontal" and the like used in the specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0034] Unless otherwise defined, all technical and scientific terms used in the specification are the same as those commonly understood by those skilled in the art to which the utility model belongs. The terms used in the specification of the utility model are only for the purpose of describing the specific embodiments and are not used to limit the utility model. The term "and / or" used in the specification includes any and all combinations of one or more related listed items.

[0035] A transformer is a device that converts one AC power into another AC power using electromagnetic induction. The transformer is usually used to change the voltage or current to meet the needs of different loads or circuits.

[0036] At present, the transformer usually comprises a framework, a magnetic core and a coil winding, wherein the magnetic core is inserted into the framework, and the coil winding is wound on the framework. However, the magnetic core is inserted into the framework, and the coil winding is wound on the framework, which easily increases the thickness of the transformer, and is not conducive to the development of light and thin transformer.

[0037] In view of this, the utility model provides an embodiment of a transformer 100, which can replace the framework with an insulating plate 2, reduce the thickness of the transformer 100 by using the stacking and inserting mode, and help the light and thin development of the transformer 100.

[0038] In order to facilitate the reader to understand the concept of the embodiment of the utility model, the specific structure of the transformer 100 is described below:

[0039] For the above-mentioned transformer 100, please refer to Figures 1 to 4The transformer 100 comprises a circuit board 1, an insulating plate 2, a winding assembly 3 and a magnetic core assembly 4; the circuit board 1 is provided with a first through hole 11; the insulating plate 2 is arranged on the circuit board 1, and the insulating plate 2 is provided with a second through hole 21; along the thickness direction of the circuit board 1, the first through hole 11 is aligned with the second through hole 21; the winding assembly 3 comprises a first coil winding 31 and a second coil winding 32; along the thickness direction of the circuit board 1, the first coil winding 31 is stacked on one side of the insulating plate 2, and the second coil winding 32 is stacked on the other side of the insulating plate 2; the insulating plate 2 separates the first coil winding 31 and the second coil winding 32; the magnetic core assembly 4 comprises a first magnetic core 41 and a second magnetic core 42; the first magnetic core 41 is provided with a first magnetic core column 411; along the thickness direction of the circuit board 1, the first magnetic core column 411 passes through the first coil winding 31 and is inserted into the second through hole 21; the second magnetic core 42 is provided with a second magnetic core column 421; along the thickness direction of the circuit board 1, the second magnetic core column 421 passes through the second coil winding 32 and the first through hole 11 and is inserted into the second through hole 21; the first magnetic core column 411 abuts against the second magnetic core column 421; wherein one of the first coil winding 31 and the second coil winding 32 is used to connect a power supply, and the other of the first coil winding 31 and the second coil winding 32 is used to connect a load.

[0040] Specifically, refer to Figures 2 to 4The first magnetic core 41 is in a columnar shape, the first magnetic core 41 is provided with a first groove 412, the first groove 412 is arranged around the first magnetic core column 411, the first coil winding 31 is accommodated in the first groove 412, the first magnetic core column 411 is arranged in the first groove 412, the first coil winding 31 is arranged around the first magnetic core column 411, the wire width of the first coil winding 31 is less than or equal to the slot width of the first groove 412, so that the first coil winding 31 is clamped in the first groove 412, the second magnetic core 42 is in a columnar shape, the second magnetic core 42 is provided with a second groove 422, the second groove 422 is arranged around the second magnetic core column 421, the second coil winding 32 is accommodated in the second groove 422, the second magnetic core column 421 is arranged in the second groove 422, the second coil winding 32 is arranged around the second magnetic core column 421, the wire width of the second coil winding 32 is less than or equal to the slot width of the second groove 422, so that the second coil winding 32 is clamped in the second groove 422, the first magnetic core 41 is provided with a first gap 413, the first gap 413 is communicated with the side wall of the first groove 412, both ends of the first coil winding 31 extend out of the first groove 412 through the first gap 413, the second magnetic core 42 is provided with a second gap 423, the second gap 423 is communicated with the side wall of the second groove 422, both ends of the second coil winding 32 extend out of the second groove 422 through the second gap 423, one of the part of the first coil winding 31 extending out of the first groove 412 through the first gap 413 and the part of the second coil winding 32 extending out of the second groove 422 through the second gap 423 is used to connect the power supply, and the other is used to connect the load, in addition, the part of the first coil winding 31 extending out of the first groove 412 through the first gap 413 and the part of the second coil winding 32 extending out of the second groove 422 through the second gap 423 are fixed to the circuit board 1 or the insulating plate 2 by welding, bonding, screwing, clamping or winding, but are not limited to.

[0041] In the above manner, the first coil winding 31 is accommodated in the first magnetic core 41, the first magnetic core 41 is stacked on one side of the circuit board 1 and the insulating plate 2, the second coil winding 32 is accommodated in the second magnetic core 42, and the second magnetic core 42 is stacked on the other side of the circuit board 1 and the insulating plate 2, so that the thickness of the transformer 100 is reduced in a stacked and inserted manner, which is helpful to the thinning of the transformer 100.

[0042] It should be noted that the first magnetic core 41 and the second magnetic core 42 are fixed to the insulating plate 2 by insertion of the first magnetic core column 411 and the second magnetic core column 421 into the second through hole 21, which can improve the stability of the first magnetic core 41 and the second magnetic core 42.

[0043] It should be further explained that by clamping the first coil winding 31 and the second coil winding 32 in the first groove 412 and the second groove 422 respectively, the first magnetic core 41 and the second magnetic core 42 are indirectly fixed to the circuit board 1 or the insulating plate 2 through the first coil winding 31 and the second coil winding 32 by clamping, which can further improve the stability of the first magnetic core 41 and the second magnetic core 42.

[0044] For the transformer 100 described above, the use principle is as follows: when the first coil winding 31 is connected to the power supply and the second coil winding 32 is connected to the load, the first coil winding 31 receives the voltage from the power supply, generates an alternating magnetic field, and then conducts through the first magnetic core 41 to the second magnetic core 42, so that the second coil winding 32 receives the alternating magnetic field and induces a varying voltage according to the turns ratio, so that the voltage induced by the second coil winding 32 realizes voltage step-up or step-down to meet the demand of the load.

[0045] For the transformer 100 described above, please refer to Figures 2 to 5 , the insulating plate 2 includes a first connecting portion 22, a first clamping portion 23, a blocking portion 24, a second clamping portion 25 and a second connecting portion 26 connected in sequence, the first connecting portion 22 and the second connecting portion 26 are connected to the circuit board 1 respectively, along the thickness direction of the circuit board 1, the first clamping portion 23, the blocking portion 24 and the second clamping portion 25 are all aligned with the first through hole 11, and the second through hole 21 is located in the blocking portion 24; the first magnetic core 41 is provided with a first clamping opening 414 which is communicated with the side wall of the first groove 412, the first clamping opening 414 is arranged opposite to the first gap 413, and the depth of the first clamping opening 414 is smaller than the depth of the first gap 413; the second magnetic core 42 is provided with a second clamping opening 424 which is communicated with the side wall of the second groove 422, the second clamping opening 424 is arranged opposite to the second gap 423, and the depth of the second clamping opening 424 is smaller than the depth of the second gap 423; wherein the first clamping portion 23 is clamped in the first gap 413 and the second clamping opening 424, and the second clamping portion 25 is clamped in the second gap 423 and the first clamping opening 414, so that the surface of the first magnetic core 41 facing the second magnetic core 42 abuts against the surface of the second magnetic core 42 facing the first magnetic core 41.

[0046] In the above manner, the first magnetic core 41 and the second magnetic core 42 are fixed to the insulating plate 2 by clamping.

[0047] In some embodiments, the insulating plate 2 is an epoxy plate, and the epoxy plate is fixed to the circuit board 1 by epoxy resin, so that the insulating plate 2 is fixed to the circuit board 1 by bonding. It can be understood that the insulating plate 2 includes but is not limited to an epoxy plate; it can also be understood that the insulating plate 2 includes but is not limited to being fixed to the circuit board 1 by a bonding connection mode, for example, the insulating plate 2 can be fixed to the circuit board 1 by welding, screwing or clamping connection mode.

[0048] For the transformer 100 described above, please refer to Figure 2 The insulating plate 2 is provided with a first pin 271, a second pin 272, a third pin 273 and a fourth pin 274, the first pin 271 and the second pin 272 are arranged on one side of the insulating plate 2, and the third pin 273 and the fourth pin 274 are arranged on the other side of the insulating plate 2; both ends of the first coil winding 31 extend out of the first recess 412 through the first gap 413, and the two ends of the first coil winding 31 are connected to the first pin 271 and the second pin 272 respectively, and both ends of the second coil winding 32 extend out of the second recess 422 through the second gap 423, and the two ends of the second coil winding 32 are connected to the third pin 273 and the fourth pin 274 respectively.

[0049] Specifically, one end of the first pin 271, the second pin 272, the third pin 273 and the fourth pin 274 is inserted into the circuit board 1, the other end of the first pin 271 and the second pin 272 is connected to one side of the insulating plate 2, and the other end of the third pin 273 and the fourth pin 274 is connected to the other side of the insulating plate 2, the two ends of the first coil winding 31 are welded to the first pin 271 and the second pin 272 respectively, and the two ends of the second coil are welded to the third pin 273 and the fourth pin 274 respectively.

[0050] In the above manner, one of the first coil winding 31 and the second coil winding 32 can be connected to the power supply, and the other can be connected to the load.

[0051] Further, for the transformer 100 described above, please refer to Figures 2 to 4 The winding assembly 3 further comprises a third coil winding 33 and a fourth coil winding 34, the first magnetic core 41 is provided with a third recess 415, the third recess 415 is arranged around the first magnetic core column 411, the first recess 412 is arranged between the first magnetic core column 411 and the third recess 415, the second magnetic core 42 is provided with a fourth recess 425, the fourth recess 425 is arranged around the second magnetic core column 421, the second recess 422 is arranged between the second magnetic core column 421 and the fourth recess 425, the third coil winding 33 is accommodated in the third recess 415, the third coil winding 33 and the first coil winding 31 are used to connect the power supply, and the fourth coil winding 34 is accommodated in the fourth recess 425, the fourth coil winding 34 and the second coil winding 32 are used to connect the load.

[0052] In the above manner, the third coil winding 33 and the fourth coil winding 34 are used to expand the function of the transformer 100, so that the transformer 100 can more flexibly meet the different needs of the power supply and the load.

[0053] Further, for the transformer 100 described above, please refer to Figures 2 to 4, the first magnetic core 41 is provided with a third gap 416, the first gap 413 and the third gap 416 are located on one side of the first magnetic core 41, the first gap 413 is arranged opposite to the third gap 416, the first gap 413 is communicated with the side wall of the first groove 412 and the side wall of the third groove 415, the third gap 416 is communicated with the side wall of the third groove 415 and the external environment, the two ends of the first coil winding 31 are sequentially inserted into the first gap 413 and the third gap 416 and then extended to the external environment, the two ends of the third coil winding 33 are inserted into the third gap 416 and then extended to the external environment, and the first gap 413 and the third gap 416 are clamped to the first clamping portion 23.

[0054] Further, for the transformer 100, please refer to Figures 2 to 4 , the first magnetic core 41 is provided with a third gap 416, the first gap 413 and the third gap 416 are located on one side of the first magnetic core 41, the first gap 413 is arranged opposite to the third gap 416, the first gap 413 is communicated with the side wall of the first groove 412 and the side wall of the third groove 415, the third gap 416 is communicated with the side wall of the third groove 415 and the external environment, the two ends of the first coil winding 31 are sequentially inserted into the first gap 413 and the third gap 416 and then extended to the external environment, the two ends of the third coil winding 33 are inserted into the third gap 416 and then extended to the external environment, and the first gap 413 and the third gap 416 are clamped to the first clamping portion 23.

[0055] In the above manner, the first coil winding 31 and the third coil winding 33 can be drawn out from the first magnetic core 41 at the same time, and the clamping stability of the first magnetic core 41 and the insulating plate 2 can be improved.

[0056] Further, for the transformer 100, please refer to Figures 2 to 4 , the second magnetic core 42 is provided with a fourth gap 426, the second gap 423 and the fourth gap 426 are located on one side of the second magnetic core 42, the second gap 423 is arranged opposite to the fourth gap 426, the second gap 423 is communicated with the side wall of the second groove 422 and the side wall of the fourth groove 425, the fourth gap 426 is communicated with the side wall of the fourth groove 425 and the external environment, the two ends of the second coil winding 32 are sequentially inserted into the second gap 423 and the fourth gap 426 and then extended to the external environment, the two ends of the fourth coil winding 34 are inserted into the fourth gap 426 and then extended to the external environment, and the second gap 423 and the fourth gap 426 are clamped to the second clamping portion 25.

[0057] Further, for the transformer 100, please refer to Figures 2 to 4 , the second magnetic core 42 is provided with a fourth gap 426, the second gap 423 and the fourth gap 426 are located on one side of the second magnetic core 42, the second gap 423 is arranged opposite to the fourth gap 426, the second gap 423 is communicated with the side wall of the second groove 422 and the side wall of the fourth groove 425, the fourth gap 426 is communicated with the side wall of the fourth groove 425 and the external environment, the two ends of the second coil winding 32 are sequentially inserted into the second gap 423 and the fourth gap 426 and then extended to the external environment, the two ends of the fourth coil winding 34 are inserted into the fourth gap 426 and then extended to the external environment, and the second gap 423 and the fourth gap 426 are clamped to the second clamping portion 25.

[0058] In this way, the second coil winding 32 and the fourth coil winding 34 can be drawn out from the second magnetic core 42, and the clamping stability of the second magnetic core 42 and the insulating plate 2 can be improved.

[0059] For the transformer 100, please refer to Figure 6 and Figure 7 The transformer 100 includes a first heat dissipation member 51 connected to the side of the first magnetic core 41 away from the second magnetic core 42, the cross-sectional area of the first heat dissipation member 51 is greater than the cross-sectional area of the first magnetic core 41, and the cross-section of the first heat dissipation member 51 is the plane intersected by the first heat dissipation member 51 along the thickness direction of the circuit board 1. The transformer 100 includes a second heat dissipation member 52 connected to the side of the second magnetic core 42 away from the first magnetic core 41, the cross-sectional area of the second heat dissipation member 52 is greater than the cross-sectional area of the second magnetic core 42, and the cross-section of the second heat dissipation member 52 is the plane intersected by the second heat dissipation member 52 along the thickness direction of the circuit board 1.

[0060] In this way, part of the heat of the transformer 100 is transferred from the first magnetic core 41 to the first heat dissipation member 51 for dissipation, and another part of the heat of the transformer 100 is transferred from the second magnetic core 42 to the second heat dissipation member 52 for dissipation, which can improve the heat dissipation area and thus improve the heat dissipation efficiency.

[0061] It should be noted that the first heat dissipation member 51 covers the first magnetic core 41 or the circuit board 1, and the second heat dissipation member 52 covers the second magnetic core 42 or the circuit board 1.

[0062] It should also be noted that the coverage of the first heat dissipation member 51 and the second heat dissipation member 52 can be set according to actual needs.

[0063] For the transformer 100, please refer to Figure 6 and Figure 7 The transformer 100 includes a first heat conduction member 61 connected between the first heat dissipation member 51 and the first magnetic core 41, and the heat conduction efficiency of the first heat conduction member 61 is greater than that of the first heat dissipation member 51. The transformer 100 includes a second heat conduction member 62 connected between the second heat dissipation member 52 and the second magnetic core 42, and the heat conduction efficiency of the second heat conduction member 62 is greater than that of the second heat dissipation member 52.

[0064] In this way, part of the heat of the transformer 100 is transferred from the first magnetic core 41 to the first heat dissipation member 51 through the first heat conduction member 61 for dissipation, and another part of the heat of the transformer 100 is transferred from the second magnetic core 42 to the second heat dissipation member 52 through the second heat conduction member 62 for dissipation, which can improve the heat transfer speed, increase the heat dissipation area, and thus improve the heat dissipation efficiency.

[0065] In some embodiments, the first heat dissipation member 51 is an upper shell, the second heat dissipation member 52 is a lower shell, the first heat conduction member 61 is a first heat conduction mud, the second heat conduction member 62 is a second heat conduction mud, the upper shell and the lower shell are connected to form an outer shell, the circuit board 1 is fixed to the upper shell or the lower shell by the screw 7, the first heat conduction mud is arranged between the first magnetic core 41 and the upper shell, and the second heat conduction mud is arranged between the second magnetic core 42 and the lower shell. In the foregoing manner, part of the heat of the transformer 100 is transmitted from the first magnetic core 41 to the upper shell through the first heat conduction mud and dissipated, and another part of the heat of the transformer 100 is transmitted from the second magnetic core 42 to the lower shell through the second heat conduction mud and dissipated, so that the heat of the transformer 100 is transmitted to the outer shell and dissipated, the heat transmission speed can be improved, the heat dissipation area is increased, and thus the heat dissipation efficiency is improved.

[0066] The utility model embodiment provides a kind of transformer 100, including circuit board 1, insulating plate 2, winding assembly 3 and magnetic core assembly 4;Circuit board 1 is provided with first through-hole 11;Insulating plate 2 is arranged on circuit board 1, and insulating plate 2 is provided with second through-hole 21, along the thickness direction of circuit board 1, first through-hole 11 is aligned with second through-hole 21;Winding assembly 3 includes first coil winding 31 and second coil winding 32, along the thickness direction of circuit board 1, first coil winding 31 is stacked on one side of insulating plate 2, and second coil winding 32 is stacked on the other side of insulating plate 2, and insulating plate 2 separates first coil winding 31 and second coil winding 32;Magnetic core assembly 4 includes first magnetic core 41 and second magnetic core 42, first magnetic core 41 is provided with first magnetic core column 411, along the thickness direction of circuit board 1, first magnetic core column 411 is inserted into second through-hole 21 after passing through first coil winding 31, second magnetic core 42 is provided with second magnetic core column 421, along the thickness direction of circuit board 1, second magnetic core column 421 is inserted into second through-hole 21 after passing through second coil winding 32 and first through-hole 11, and first magnetic core column 411 and second magnetic core column 421 abut;Wherein, one of first coil winding 31 and second coil winding 32 is used to connect power supply, and the other of first coil winding 31 and second coil winding 32 is used to connect load.Relative to the winding of framework, by the above-mentioned manner, the insulating plate 2 of the utility model embodiment replaces framework, uses the way of stacking and inserting, reduces the thickness of transformer 100, and helps the light and thin of transformer 100.

[0067] The utility model further provides an embodiment of electric equipment, and the electric equipment includes the transformer 100, and the specific structure and function of the transformer 100 can be referred to the above-mentioned embodiment, which will not be repeated here.

[0068] The above merely illustrates the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which are made according to the content of the present application specification and drawings, are also included in the patent protection scope of the present application.

Claims

1. A transformer, characterized in that, include: The circuit board has a first through hole; An insulating plate is disposed on the circuit board, and the insulating plate is provided with a second through hole. Along the thickness direction of the circuit board, the first through hole and the second through hole are aligned. The winding assembly includes a first coil winding and a second coil winding. Along the thickness direction of the circuit board, the first coil winding is stacked on one side of the insulating plate, and the second coil winding is stacked on the other side of the insulating plate. The insulating plate separates the first coil winding and the second coil winding. A magnetic core assembly includes a first magnetic core and a second magnetic core. The first magnetic core is provided with a first magnetic core post. Along the thickness direction of the circuit board, the first magnetic core post passes through the first coil winding and is inserted into the second through hole. The second magnetic core is provided with a second magnetic core post. Along the thickness direction of the circuit board, the second magnetic core post passes through the second coil winding and the first through hole and is inserted into the second through hole. The first magnetic core post and the second magnetic core post abut against each other. In this configuration, one of the first coil winding and the second coil winding is used to connect to a power source, and the other of the first coil winding and the second coil winding is used to connect to a load.

2. The transformer according to claim 1, characterized in that, The first magnetic core is provided with a first groove, the first groove is arranged around the first magnetic core post, and the first coil winding is housed in the first groove.

3. The transformer according to claim 2, characterized in that, The second magnetic core is provided with a second groove, which surrounds the second magnetic core post, and the second coil winding is housed in the second groove.

4. The transformer according to claim 3, characterized in that, The first magnetic core is provided with a first notch, which is connected to the side wall of the first groove, and both ends of the first coil winding extend out of the first groove through the first notch.

5. The transformer according to claim 4, characterized in that, The second magnetic core is provided with a second notch, which is connected to the side wall of the second groove. Both ends of the second coil winding extend out of the second groove through the second notch.

6. The transformer according to claim 5, characterized in that, The insulating plate includes a first connecting part, a first snap-fit ​​part, a blocking part, a second snap-fit ​​part, and a second connecting part connected in sequence. The first connecting part and the second connecting part are respectively connected to the circuit board. Along the thickness direction of the circuit board, the first snap-fit ​​part, the blocking part, and the second snap-fit ​​part are all aligned with the first through hole, and the second through hole is located in the blocking part.

7. The transformer according to claim 6, characterized in that, The first magnetic core is provided with a first bayonet, which is connected to the side wall of the first groove, and the first bayonet is disposed opposite to the first notch; The second magnetic core is provided with a second bayonet, which is connected to the side wall of the second groove, and the second bayonet is disposed opposite to the second notch; The first snap-fit ​​portion snaps into the first notch and the second snap-fit ​​portion, and the second snap-fit ​​portion snaps into the second notch and the first snap-fit ​​portion, so that the surface of the first magnetic core facing the second magnetic core abuts against the surface of the second magnetic core facing the first magnetic core.

8. The transformer according to claim 1, characterized in that, The transformer includes a first heat sink, which is connected to the side of the first magnetic core away from the second magnetic core, and the cross-sectional area of ​​the first heat sink is larger than the cross-sectional area of ​​the first magnetic core. The transformer includes a second heat sink, which is connected to the side of the second magnetic core away from the first magnetic core, and the cross-sectional area of ​​the second heat sink is larger than the cross-sectional area of ​​the second magnetic core.

9. The transformer according to claim 8, characterized in that, The transformer includes a first heat-conducting element, which is connected between a first heat sink and a first magnetic core. The heat conduction efficiency of the first heat-conducting element is greater than that of the first heat sink. The transformer includes a second heat-conducting element, which is connected between a second heat sink and a second magnetic core. The heat conduction efficiency of the second heat-conducting element is greater than that of the second heat sink.

10. An electrical appliance, characterized in that, Including the transformer as described in any one of claims 1-9.

Images