Transformer

Abstract

The invention relates to the technical field of electrical equipment, and provides a transformer which comprises a plurality of windings, a fixing piece and a magnetic core, the windings are arranged in the fixing piece in a stacked mode and fixed by the fixing piece, the magnetic core is arranged outside the fixing piece in a wound mode, and each winding is formed by winding a flat enameled wire. According to the transformer, the enameled wire in each winding is arranged to be flat, so that the windings are arranged more tightly, and the output current is larger; the plurality of windings are fixed by adopting the fixing pieces, so that the leakage inductance is reduced; the magnetic core is arranged outside the fixing piece, so that the magnetic core is prevented from being damaged when the winding is wound on the magnetic core; according to the transformer provided by the embodiment of the invention, the transformation ratio is controllable, the voltage precision is high, the consistency is good, and the efficiency and precision of a battery are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical equipment, and in particular to a transformer. Background Art

[0002] In the prior art, transformers usually adopt a structure in which the windings are wound around the outside of the magnetic core, and the enameled wires are mostly circular. Due to the uneven arrangement of the windings outside the magnetic core and the relatively large leakage inductance between the windings, the voltage accuracy is not high during energy transfer, and the conversion efficiency is also low. In order to ensure that the damage to the enameled wire is reduced under high current conditions, the skin effect must be reduced. Generally, a multi-strand enameled wire solution is adopted, which aggravates the unevenness of each winding. Therefore, it is crucial to develop a transformer with optimized structure and stable performance to improve the efficiency and accuracy of the circuit. Summary of the invention

[0003] The present invention provides a transformer, which is used to solve the defects of uneven arrangement of transformer windings and relatively large leakage inductance in the prior art.

[0004] The present invention provides a transformer, comprising: a plurality of windings, a fixing part and a magnetic core, wherein the plurality of windings are stacked in the fixing part and fixed by the fixing part, and the magnetic core is wound outside the fixing part, wherein each of the windings is wound by a flat enameled wire.

[0005] According to a transformer provided by the present invention, the fixing member includes a pair of frames, and the pair of frames are arranged opposite to each other and are detachably connected so that the plurality of windings are clamped between the pair of frames.

[0006] According to a transformer provided by the present invention, each of the skeletons is provided with an arc structure, a pair of the arc structures are butt-jointed, and the magnetic core is wound outside the pair of arc structures.

[0007] According to a transformer provided by the present invention, each of the skeletons is provided with a plurality of the arc structures, and the magnetic core is wound around each pair of the arc structures.

[0008] A transformer provided according to the present invention also includes a plurality of insulating cylinders, each of which is sleeved outside a pair of the arc-shaped structures, the magnetic core is wound around the outside of each insulating cylinder, and the plurality of insulating cylinders rotate synchronously to synchronously wind the magnetic core; each of the insulating cylinders includes a pair of first arc-shaped parts, and the pair of first arc-shaped parts are detachably connected.

[0009] According to a transformer provided by the present invention, at least one end of each insulating cylinder is provided with a gear ring, and a plurality of the gear rings of a plurality of insulating cylinders are meshed.

[0010] According to a transformer provided by the present invention, each of the gear rings includes a second arc-shaped member, a plurality of teeth are arranged on an edge of the second arc-shaped member, the second arc-shaped member is connected to the first arc-shaped member, and a pair of the second arc-shaped members are butt-jointed.

[0011] According to a transformer provided by the present invention, each of the skeletons is provided with a first groove and a second groove, a pair of the first grooves are connected to form a first accommodating groove, and a pair of the second grooves are connected to form a second accommodating groove; the winding is clamped in the first accommodating groove and the second accommodating groove, wherein the shapes of the first accommodating groove and the second accommodating groove are adapted to the cross-sectional shape of the winding.

[0012] According to a transformer provided by the present invention, a pair of the skeletons are a first skeleton and a second skeleton, the first skeleton is provided with a plurality of clamping grooves, the second skeleton is provided with a plurality of clamping members, and the clamping members are clamped with the clamping grooves.

[0013] According to a transformer provided by the present invention, the magnetic core is a flexible magnetic core, and the magnetic core is wound outside the fixing member.

[0014] The transformer provided by the present invention arranges the enameled wire in each winding in a flat shape so that the windings are arranged more closely and the output current is larger; the leakage inductance is reduced by fixing multiple windings with fixing parts; the magnetic core is arranged outside the fixing parts to avoid damage to the magnetic core when the windings are wound around the magnetic core; the transformer provided by the embodiment of the present invention has a controllable transformation ratio, high voltage accuracy, good consistency, and improves the efficiency and accuracy of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of the transformer provided by the present invention.

[0017] Figure 2 yes Figure 1 An exploded diagram of the transformer is shown in FIG.

[0018] Reference numerals: 1. Winding; 2. Fixing part; 3. Magnetic core; 4. Insulating tube; 5. Gear ring; 21. First frame; 22. Second frame; 41. First arc-shaped part; 51. Second arc-shaped part; 52. Tooth; 211. Arc-shaped structure; 212. First groove; 213. Second groove; 214. Snap-in groove; 221. Snap-in part; 511. Plug-in hole; 512. Plug-in part. DETAILED DESCRIPTION

[0019] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0021] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0022] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0023] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment 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 may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0024] Combine the following Figure 1 and Figure 2 A transformer of the present invention is described.

[0025] like Figure 1 As shown, in an embodiment of the present invention, the transformer comprises: a plurality of windings 1, a fixing member 2 and a magnetic core 3, wherein the plurality of windings 1 are stacked in the fixing member 2 and fixed by the fixing member 2. The magnetic core 3 is wound outside the fixing member 2, wherein each winding 1 is wound by a flat enameled wire.

[0026] Specifically, in this embodiment, each winding 1 is wound by a flat enameled wire, and the flat enameled wire has a larger contact area and is arranged more closely during winding. After a plurality of windings 1 are stacked, they are fixed by a fixing member 2, and the fixing member 2 plays a shaping role for the plurality of windings 1, and can also press the plurality of windings 1 to reduce the leakage inductance of the winding 1. At the same time, the skin effect of the flat enameled wire is low, which can ensure that the winding 1 has a large current output. In this embodiment, the magnetic core 3 is arranged outside the fixing member 2, which can avoid the magnetic core 3 from being damaged when the winding 1 is wound, compared with the prior art of winding the winding 1 on the magnetic core 3.

[0027] Furthermore, in this embodiment, by changing the number of turns of the enameled wire when each winding 1 is wound, the transformation ratio of the transformer can be adjusted.

[0028] The transformer provided by the embodiment of the present invention arranges the enameled wire in each winding in a flat shape so that the windings are arranged more closely and the output current is larger; the leakage inductance is reduced by fixing multiple windings with a fixing member; the magnetic core is arranged outside the fixing member to avoid damage to the magnetic core when the winding is wound around the magnetic core; the transformer provided by the embodiment of the present invention changes the conventional winding around the magnetic core to a design of winding the magnetic core around the fixing member of the winding, and the transformation ratio is controllable, the voltage accuracy is high, the consistency is good, and the efficiency and accuracy of the battery are improved.

[0029] like Figure 2As shown, in an embodiment of the present invention, the fixing member 2 includes a pair of frames, which are arranged opposite to each other and detachably connected to clamp the plurality of windings 1 between the pair of frames, thereby compacting the plurality of windings 1 and making the arrangement of the enameled wires in the windings 1 more compact. In an embodiment of the present invention, the pair of frames can be connected by bolts or by clamping by a clamping member to achieve a detachable connection.

[0030] Each skeleton is provided with a first groove 212 and a second groove 213. When a pair of skeletons are connected, a pair of first grooves 212 are connected to form a first receiving groove, and a pair of second grooves 213 are connected to form a second receiving groove. The winding 1 is clamped in the first receiving groove and the second receiving groove, wherein the shapes of the first receiving groove and the second receiving groove are adapted to the cross-sectional shape of the winding 1.

[0031] Specifically, according to the cross-sectional shape of the winding 1, each skeleton is correspondingly provided with a first groove 212 and a second groove 213. When a pair of skeletons are connected, the opposite sides of the winding 1 are respectively clamped in the first receiving groove and the second receiving groove. The groove depths of the first receiving groove and the second receiving groove are adapted to the thickness of the winding 1 to compact the winding 1 and thereby reduce the leakage inductance of the winding 1.

[0032] In an optional embodiment, for ease of description, a pair of skeletons are divided into a first skeleton 21 and a second skeleton 22. The first skeleton 21 is provided with a plurality of snap-in grooves 214, and the second skeleton 22 is provided with a plurality of snap-in parts 221. When the snap-in parts 221 are inserted into the corresponding snap-in grooves 214, the first skeleton 21 and the second skeleton 22 can be snap-connected to form a whole.

[0033] Further, in Figure 2 In the illustrated embodiment, a snap-in groove 214 is provided on one side of the first groove 212 and on one side of the second groove 213, and a snap-in groove 214 is also provided between the first groove 212 and the second groove 213, so that the first skeleton 21 and the second skeleton 22 can be snap-connected at multiple points to enhance the clamping force on the winding 1 and reduce the leakage inductance of the winding 1.

[0034] In the embodiment of the present invention, each clamping slot 214 is an L-shaped clamping slot, and accordingly, the shape of each clamping member 221 is also L-shaped to match the L-shaped clamping slot.

[0035] The transformer provided in the embodiment of the present invention can be customized with windings 1 of different shapes according to different application scenarios, and the shapes of the first groove 212 and the second groove 213 are set according to the cross-sectional shape of the winding 1 so that the fixing member 2 is adapted to the winding 1 to meet the requirements of different circuits.

[0036] In the embodiment of the present invention, the magnetic core 3 is a flexible magnetic core, which is rotatably wound outside the fixing member 2 .

[0037] like Figure 2 As shown, in the embodiment of the present invention, each frame is provided with an arc structure 211 . When a pair of frames are in a clamped state, the pair of arc structures 211 are butted against each other, and the magnetic core 3 is wound around the pair of arc structures 211 .

[0038] Specifically, each arc structure 211 may be semicircular or semi-racetrack shaped. When a pair of skeletons are connected, the pair of arc structures 211 are butt-joined, and their cross-sections are circular or racetrack shaped.

[0039] Further, in an optional embodiment, each arc structure 211 is semicircular, and when a pair of skeletons are connected, the pair of arc structures 211 are connected to form a cylindrical structure. Further, each skeleton can be provided with a plurality of arc structures 211, and when a pair of skeletons are connected, a plurality of cylindrical structures can be formed, and a magnetic core 3 is wound around the outside of each cylindrical structure.

[0040] As shown in Figure 2, the transformer provided in the embodiment of the present invention further includes a plurality of insulating cylinders 4, each insulating cylinder 4 is sleeved outside a cylindrical structure, and a magnetic core 3 is wound around the outside of each insulating cylinder 4. Each insulating cylinder 4 can rotate relative to the cylindrical structure. In this embodiment, the plurality of insulating cylinders 4 rotate synchronously to synchronously wind the magnetic core 3 around the outside of the insulating cylinder 4. Optionally, in an optional embodiment, each insulating cylinder 4 can be connected to a motor, and the plurality of motors rotate synchronously to drive the plurality of insulating cylinders 4 to rotate synchronously; in another optional embodiment, the plurality of insulating cylinders 4 can be driven by gears to achieve synchronous rotation.

[0041] Further, the insulating cylinder 4 includes a pair of first arc-shaped pieces 41, the shape of the first arc-shaped piece 41 matches the shape of the arc-shaped structure 211 on the skeleton, and when the arc-shaped structure 211 is semicircular, the first arc-shaped piece 41 is also semicircular, and the radius of the first arc-shaped piece 41 is greater than the radius of the arc-shaped structure 211. The pair of first arc-shaped pieces 41 are detachably connected. The insulating cylinder 4 is set as a pair of detachable first arc-shaped pieces 41, which can facilitate the installation of the insulating cylinder 4 outside the cylindrical structure. After the pair of first arc-shaped pieces 41 are clamped or plugged, the magnetic core 3 is wound around each insulating cylinder 4. Optionally, a plug-in hole can be set on the end face of one of the pair of first arc-shaped pieces 41, and a plug-in piece is set on the end face of the other, and the plug-in piece is plugged into the plug-in hole, so that the pair of first arc-shaped pieces 41 can be detachably connected.

[0042] like Figure 2 As shown, at least one end of each insulating cylinder 4 is provided with a gear ring 5, and the multiple gear rings 5 ​​of the multiple insulating cylinders 4 are meshed, so that the multiple insulating cylinders 4 can rotate synchronously, so as to realize synchronous winding of the magnetic core 3, so as to improve the efficiency and consistency of winding of the magnetic core 3. In order to ensure the synchronous rotation of the multiple insulating cylinders 4, gear rings 5 ​​can be provided on both sides of each insulating cylinder 4, and the multiple gear rings 5 ​​on each side are meshed in sequence.

[0043] Furthermore, each gear ring 5 includes a second arc-shaped member 51, the edge of which is provided with a plurality of teeth 52, the second arc-shaped member 51 is connected to the first arc-shaped member 41, and the curvature of the second arc-shaped member 51 is the same as that of the first arc-shaped member 41, and a pair of second arc-shaped members 51 are butt-jointed.

[0044] Optionally, when the pair of first arc-shaped members 41 are butted, the pair of first arc-shaped members 41 may be plugged in, or the pair of second arc-shaped members 51 may be plugged in, so that the insulating cylinder 4 and the gear ring 5 form a whole. In this embodiment, the end surface of one of the pair of second arc-shaped members 51 is provided with a plug hole 511, and the end surface of the other is provided with a plug connector 512. When the pair of first arc-shaped members 41 are butted, the plug connector 512 is plugged into the plug hole 511, so that the insulating cylinder 4 and the gear ring 5 form a whole.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A transformer, characterized in that: include: A plurality of windings, a fixing part and a magnetic core, wherein the plurality of windings are stacked in the fixing part and fixed by the fixing part, and the magnetic core is wound outside the fixing part, wherein each winding is wound by a flat enameled wire.

2. The transformer according to claim 1, characterized in that: The fixing member comprises a pair of frames, which are arranged opposite to each other and are detachably connected so as to clamp the plurality of windings between the pair of frames.

3. The transformer according to claim 2, characterized in that: Each of the frames is provided with an arc structure, a pair of the arc structures are butted together, and the magnetic core is wound outside the pair of arc structures.

4. The transformer according to claim 3, characterized in that: Each of the skeletons is provided with a plurality of the arc structures, and each pair of the arc structures is surrounded by the magnetic core.

5. The transformer according to claim 4, characterized in that: It also includes a plurality of insulating cylinders, each of which is sleeved outside the pair of arc-shaped structures, each of which is wound with the magnetic core, and the plurality of insulating cylinders rotate synchronously to synchronously wind the magnetic core; Each of the insulating cylinders includes a pair of first arc-shaped members, and the pair of first arc-shaped members are detachably connected.

6. The transformer according to claim 5, characterized in that: At least one end of each of the insulating cylinders is provided with a gear ring, and the multiple gear rings of the multiple insulating cylinders are meshed.

7. The transformer according to claim 6, characterized in that: Each of the gear rings includes a second arc-shaped member, a plurality of teeth are arranged on the edge of the second arc-shaped member, the second arc-shaped member is connected to the first arc-shaped member, and a pair of the second arc-shaped members are butt-jointed.

8. The transformer according to claim 2, characterized in that: Each of the skeletons is provided with a first groove and a second groove, a pair of the first grooves are connected to form a first receiving groove, and a pair of the second grooves are connected to form a second receiving groove; The winding is clamped in the first accommodating groove and the second accommodating groove, wherein the shapes of the first accommodating groove and the second accommodating groove are adapted to the cross-sectional shape of the winding.

9. The transformer according to claim 2, characterized in that: The pair of skeletons are a first skeleton and a second skeleton, the first skeleton is provided with a plurality of clamping grooves, the second skeleton is provided with a plurality of clamping members, and the clamping members are clamped with the clamping grooves.

10. The transformer according to claim 1, characterized in that: The magnetic core is a flexible magnetic core, and the magnetic core is wound outside the fixing member.

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