CN203827152U - A constant magnetic field magnetic conductive slide block power transformation apparatus - Google Patents
A constant magnetic field magnetic conductive slide block power transformation apparatus Download PDFInfo
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- CN203827152U CN203827152U CN201420222601.2U CN201420222601U CN203827152U CN 203827152 U CN203827152 U CN 203827152U CN 201420222601 U CN201420222601 U CN 201420222601U CN 203827152 U CN203827152 U CN 203827152U
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Abstract
本实用新型提供的恒定磁场导磁滑块变电装置，属于变电技术领域，主要解决现有技术交变磁场在导磁物质中产生的涡流损耗及磁滞损耗较大的问题。包括导磁滑块、牵引机构、气隙、感应线圈、激磁线圈、感应工作磁路、导磁旁路及磁路；所述导磁滑块位于气隙内，且由牵引机构带动其在气隙内往复运动，所述感应线圈绕在感应工作磁路上；所述激磁线圈绕在所述磁路上且与直流电源连接；所述感应工作磁路截面积等于磁路的截面积，所述导磁旁路的截面积也等于磁路的截面积，感应工作磁路与导磁旁路两端并联，其中一个并联端头形成气隙端面，另一个并联端头与磁路连接。本装置通过改变导磁滑块的往复运动的周期，可以改变感应线圈中交变电流的频率。
The utility model provides a constant magnetic field magnetic conduction slider power transformation device, which belongs to the field of power transformation technology, and mainly solves the problems of relatively large eddy current loss and hysteresis loss generated in the magnetic conduction material by the alternating magnetic field in the prior art. It includes a magnetic slider, a traction mechanism, an air gap, an induction coil, an excitation coil, an induction working magnetic circuit, a magnetic bypass and a magnetic circuit; the magnetic slider is located in the air gap, and is driven by the traction mechanism in the air reciprocating movement in the gap, the induction coil is wound on the induction working magnetic circuit; the excitation coil is wound on the magnetic circuit and connected to the DC power supply; the cross-sectional area of the induction working magnetic circuit is equal to the cross-sectional area of the magnetic circuit, the conducting The cross-sectional area of the magnetic bypass is also equal to the cross-sectional area of the magnetic circuit. The induction working magnetic circuit is connected in parallel with the two ends of the magnetic conduction bypass. One of the parallel terminals forms an air gap end face, and the other parallel terminal is connected to the magnetic circuit. The device can change the frequency of the alternating current in the induction coil by changing the period of the reciprocating motion of the magnetically conductive slider.
Description
技术领域technical field
本实用新型属于变电技术领域，具体涉及恒定磁场导磁滑块变电装置。The utility model belongs to the technical field of power transformation, and in particular relates to a constant magnetic field magnetic conduction slider power transformation device.
背景技术Background technique
长距离磁路传输电能系统中，磁路中的交变磁场，在导磁物质中产生的涡流损耗及磁滞损耗较大，恒定磁场无涡流损耗及磁滞损耗。但恒定磁场无法在线圈内产生电动势，在闭合线路内也不产生电流。In the long-distance magnetic circuit transmission power system, the alternating magnetic field in the magnetic circuit produces large eddy current loss and hysteresis loss in the magnetic material, and the constant magnetic field has no eddy current loss and hysteresis loss. But a constant magnetic field cannot generate an electromotive force in a coil, nor does it generate a current in a closed circuit.
发明内容Contents of the invention
本实用新型的目的是解决现有技术存在的问题，提供将时变磁场限制在感应线圈之内，感应线圈之外的磁路中的磁场保持不变，大幅减少涡流损耗及磁滞损耗的恒定磁场导磁滑块变电装置。The purpose of the utility model is to solve the problems existing in the prior art, to provide a constant magnetic field that limits the time-varying magnetic field within the induction coil, keeps the magnetic field in the magnetic circuit outside the induction coil unchanged, and greatly reduces eddy current loss and hysteresis loss. Magnetic field magnetic slider power conversion device.
本实用新型为解决上述技术问题而采取的技术方案是：The technical scheme that the utility model takes for solving the problems of the technologies described above is:
恒定磁场导磁滑块变电装置，其特点是：包括导磁滑块、牵引机构、气隙、感应线圈、激磁线圈、感应工作磁路、导磁旁路及磁路；所述导磁滑块位于气隙内，且由牵引机构带动其在气隙内往复运动，所述感应线圈绕在感应工作磁路上；所述激磁线圈绕在所述磁路上且与直流电源连接；所述感应工作磁路截面积等于磁路的截面积，所述导磁旁路的截面积也等于磁路的截面积，感应工作磁路与导磁旁路两端并联，其中一个并联端头形成气隙端面，另一个并联端头与磁路连接。The constant magnetic field magnetic slider power conversion device is characterized in that it includes a magnetic slider, a traction mechanism, an air gap, an induction coil, an excitation coil, an induction working magnetic circuit, a magnetic bypass and a magnetic circuit; the magnetic slider The block is located in the air gap, and is driven by the traction mechanism to reciprocate in the air gap. The induction coil is wound on the induction working magnetic circuit; the excitation coil is wound on the magnetic circuit and connected to the DC power supply; the induction working The cross-sectional area of the magnetic circuit is equal to the cross-sectional area of the magnetic circuit, and the cross-sectional area of the magnetic conduction bypass is also equal to the cross-sectional area of the magnetic circuit. The two ends of the induction working magnetic circuit and the magnetic conduction bypass are connected in parallel, and one of the parallel terminals forms an air gap end face , and the other parallel terminal is connected to the magnetic circuit.
所述导磁滑块与气隙端面对应的两个面的面积等于磁路的截面积；所述气隙内两个相对的气隙端面相等，其面积为磁路截面的两倍。The areas of the two surfaces corresponding to the magnetically conductive slider and the end faces of the air gap are equal to the cross-sectional area of the magnetic circuit; the two opposite air gap end faces in the air gap are equal, and their areas are twice the cross-sectional area of the magnetic circuit.
本实用新型与现有技术相比，具有以下有益效果：Compared with the prior art, the utility model has the following beneficial effects:
本实用新型采用导磁滑块的往复运动，改变感应工作磁路中的磁感应强度，采用导磁旁路使得除感应工作磁路及导磁旁路以外的磁路中的磁感应强度保持恒定，从而最大限度地减少了涡流损耗，通过激磁线圈内通以直流电建立的恒定磁场，无磁滞损耗。The utility model adopts the reciprocating motion of the magnetic conduction slider to change the magnetic induction intensity in the induction working magnetic circuit, and adopts the magnetic conduction bypass to keep the magnetic induction intensity in the magnetic circuits other than the induction work magnetic circuit and the magnetic conduction bypass to be constant, thereby The eddy current loss is minimized, and the constant magnetic field established by direct current through the excitation coil has no hysteresis loss.
附图说明Description of drawings
图1为本实用新型结构示意图。Fig. 1 is the structural representation of the utility model.
图中：1—导磁滑块；2—牵引机构；3—感应线圈；4—感应工作磁路；5—气隙端面；6—导磁旁路；7—磁路；8—气隙；9—激磁线圈。In the figure: 1—magnetic slider; 2—traction mechanism; 3—induction coil; 4—induction working magnetic circuit; 5—air gap end face; 6—magnetic bypass; 7—magnetic circuit; 8—air gap; 9—excitation coil.
具体实施方式Detailed ways
如图1所示，恒定磁场导磁滑块变电装置，包括导磁滑块1、牵引机构2、气隙8、感应线圈3、激磁线圈9、感应工作磁路4、导磁旁路6及磁路7；所述导磁滑块1位于气隙8内，且由牵引机构2带动其在气隙8内往复运动，所述感应线圈3绕在感应工作磁路4上；所述激磁线圈9绕在所述磁路7上且与直流电源连接；所述感应工作磁路4截面积等于磁路7的截面积，所述导磁旁路6的截面积也等于磁路7的截面积，感应工作磁路4与导磁旁路6两端并联，其中一个并联端头形成气隙端面5，另一个并联端头与磁路7连接。As shown in Figure 1, the constant magnetic field magnetic slider power conversion device includes a magnetic slider 1, a traction mechanism 2, an air gap 8, an induction coil 3, an excitation coil 9, an induction working magnetic circuit 4, and a magnetic bypass 6 and magnetic circuit 7; the magnetically conductive slider 1 is located in the air gap 8, and is driven by the traction mechanism 2 to reciprocate in the air gap 8, and the induction coil 3 is wound on the induction working magnetic circuit 4; the excitation The coil 9 is wound on the magnetic circuit 7 and connected with a DC power supply; the cross-sectional area of the induction working magnetic circuit 4 is equal to the cross-sectional area of the magnetic circuit 7, and the cross-sectional area of the magnetic conduction bypass 6 is also equal to the cross-sectional area of the magnetic circuit 7 area, the two ends of the induction working magnetic circuit 4 and the magnetic conduction bypass 6 are connected in parallel, one of the parallel terminals forms the air gap end face 5, and the other parallel terminal is connected with the magnetic circuit 7.
所述导磁滑块1与气隙端面5对应的两个面的面积等于磁路7的截面积；所述气隙8内两个相对的气隙端面5相等，其面积为磁路截面的两倍。The area of the two surfaces corresponding to the magnetically conductive slider 1 and the air gap end face 5 is equal to the cross-sectional area of the magnetic circuit 7; the two opposite air gap end faces 5 in the air gap 8 are equal, and the area is 1/2 of the magnetic circuit cross section. double.
工作过程及原理：Working process and principle:
本实用新型工作时，所述激磁线圈与直流电源连通后，在磁路7中建立恒定磁场，在气隙8处，磁力线绝大多数经导磁滑块1进入感应工作磁路4或导磁旁路6经磁中7闭合，随着导磁滑块1的往复运动，进入感应工作磁路4的磁力线的数量在不断变化，形成变化的磁场，从而在感应线圈3中感应出交变电流。改变导磁滑块1的往复运动的周期，可以改变感应线圈3中交变电流的频率。When the utility model works, after the excitation coil is connected with the DC power supply, a constant magnetic field is established in the magnetic circuit 7, and at the air gap 8, most of the magnetic force lines enter the induction working magnetic circuit 4 or the magnetic conduction through the magnetic conduction slider 1 The bypass 6 is closed through the magnetic center 7, and with the reciprocating motion of the magnetic slider 1, the number of magnetic force lines entering the induction working magnetic circuit 4 is constantly changing, forming a changing magnetic field, thereby inducing an alternating current in the induction coil 3 . Changing the cycle of the reciprocating motion of the magnetically conductive slider 1 can change the frequency of the alternating current in the induction coil 3 .
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| CN201420222601.2U CN203827152U (en) | 2014-04-30 | 2014-04-30 | A constant magnetic field magnetic conductive slide block power transformation apparatus |
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| CN201420222601.2U CN203827152U (en) | 2014-04-30 | 2014-04-30 | A constant magnetic field magnetic conductive slide block power transformation apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103929038A (en) * | 2014-04-30 | 2014-07-16 | 国家电网公司 | Constant magnetic field magnetic slider power conversion device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103929038A (en) * | 2014-04-30 | 2014-07-16 | 国家电网公司 | Constant magnetic field magnetic slider power conversion device |
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