阅读说明：本技术 一种复合励磁双向磁通可控装置 (Composite excitation bidirectional magnetic flux controllable device ) 是由 朱石柱 司雷明 戴珊珊 于 2021-08-03 设计创作，主要内容包括：本发明涉及一种复合励磁双向磁通可控装置,其构成包括有励磁线圈、闭环软磁铁芯或开环软磁铁芯、左侧C形永磁支路和右侧C形永磁支路,左侧C形永磁支路上下两个开口端面紧贴于该闭环软磁铁芯或开环软磁铁芯右侧竖直边框的左侧面,右侧C形永磁支路上下两个开口端面紧贴于该闭环软磁铁芯或开环软磁铁芯右侧竖直边框的右侧面,且左侧C形永磁支路上开口端呈S极,下开口端呈N极,而右侧C形永磁支路上开口端呈N极,下开口端呈S极,励磁线圈绕于该闭环软磁铁芯或开环软磁铁芯右侧竖直边框,且限于左侧C形永磁支路和右侧C形永磁支路的上下开口端之间。本发明装置用较小电流获得较高的复合磁通,高效、节能、环保,具有广泛的应用前景。(The invention relates to a composite excitation bidirectional magnetic flux controllable device, which comprises an excitation coil, a closed-loop soft magnetic core or an open-loop soft magnetic core, a left C-shaped permanent magnetic branch and a right C-shaped permanent magnetic branch, wherein the upper and lower opening end surfaces of the left C-shaped permanent magnetic branch are tightly attached to the left side surface of a right vertical frame of the closed-loop soft magnetic core or the open-loop soft magnetic core, the upper and lower opening end surfaces of the right C-shaped permanent magnetic branch are tightly attached to the right side surface of the right vertical frame of the closed-loop soft magnetic core or the open-loop soft magnetic core, the upper opening end of the left C-shaped permanent magnetic branch is S-pole, the lower opening end is N-pole, the upper opening end of the right C-shaped permanent magnet branch is an N pole, the lower opening end of the right C-shaped permanent magnet branch is an S pole, and the excitation coil is wound on a right vertical frame of the closed-loop soft magnet core or the open-loop soft magnet core and limited between the upper opening end and the lower opening end of the left C-shaped permanent magnet branch and the upper opening end of the right C-shaped permanent magnet branch. The device of the invention obtains higher composite magnetic flux with smaller current, is efficient, energy-saving and environment-friendly, and has wide application prospect.)

1. A composite excitation bidirectional magnetic flux controllable device comprises an excitation coil, a closed-loop soft magnetic core or an open-loop soft magnetic core, and is characterized in that: the magnetic field excitation device is characterized by further comprising a left C-shaped permanent magnetic branch and a right C-shaped permanent magnetic branch, wherein the left C-shaped permanent magnetic branch and the right C-shaped permanent magnetic branch are respectively composed of a permanent magnet and an iron core material, the upper and lower opening end surfaces of the left C-shaped permanent magnetic branch are tightly attached to the left side surface of a right vertical frame of the closed-loop soft magnetic iron core or the open-loop soft magnetic iron core, the upper and lower opening end surfaces of the right C-shaped permanent magnetic branch are tightly attached to the right side surface of the right vertical frame of the closed-loop soft magnetic iron core or the open-loop soft magnetic iron core, the upper opening end of the left C-shaped permanent magnetic branch is an S pole, the lower opening end of the left C-shaped permanent magnetic branch is an N pole, the upper opening end of the right C-shaped permanent magnetic branch is an S pole, and the excitation coil is wound on the right vertical frame of the closed-loop soft magnetic iron core or the open-loop soft magnetic iron core and limited between the upper and lower opening ends of the left C-shaped permanent magnetic branch and the right C-shaped permanent magnetic branch.

2. The hybrid excitation bidirectional magnetic flux controllable device according to claim 1, characterized in that: the left C-shaped permanent magnet branch circuit is composed of an upper permanent magnet, a lower permanent magnet, a vertical section iron core, an upper horizontal section iron core and a lower horizontal section iron core, one end of each of the upper horizontal section iron core and the lower horizontal section iron core is tightly attached to the left side face of a vertical frame on the right side of the soft magnetic iron core, the N pole of the upper permanent magnet is tightly attached to the right side face of the upper end of the vertical section iron core, the S pole of the upper permanent magnet is tightly attached to the other end of the upper horizontal section iron core, the S pole of the lower permanent magnet is tightly attached to the right side face of the lower end of the vertical section iron core, and the N pole of the lower permanent magnet is tightly attached to the other end of the lower horizontal section iron core; the right side C shape permanent magnetism branch road comprises top permanent magnet, below permanent magnet, vertical section iron core, upper horizontal section iron core, lower horizontal section iron core, the right flank of the vertical frame in soft magnetic core right side is hugged closely to the one end of upper horizontal section iron core and lower horizontal section iron core, vertical section iron core upper end left surface is hugged closely to top permanent magnet S utmost point, the other end of upper horizontal section iron core is hugged closely to top permanent magnet N utmost point, vertical section iron core lower extreme left surface is hugged closely to below permanent magnet N utmost point, the other end of horizontal section iron core is hugged closely to below permanent magnet S utmost point.

3. A hybrid excitation bi-directional flux controllable device as claimed in claim 1 or 2, wherein: the upper and lower parts of the left side surface of the right vertical frame of the closed-loop soft magnetic iron core or the open-loop soft magnetic iron core are provided with two convex parts, the upper and lower parts of the right vertical frame are oppositely arranged or staggered, the S pole of the upper permanent magnet of the left C-shaped permanent magnetic branch circuit is tightly attached to the upper convex part of the left side surface of the vertical frame, the N pole of the upper permanent magnet is tightly attached to the right side surface of the upper end of the iron core of the vertical section, the S pole of the permanent magnet below the left C-shaped permanent magnetic branch circuit is tightly attached to the right side surface of the lower end of the iron core of the vertical section, and the N pole of the lower permanent magnet is tightly attached to the lower convex part of the left side surface of the vertical frame; the N pole of the permanent magnet above the right C-shaped permanent magnet branch is tightly attached to the upper convex part of the right side surface of the vertical frame, the S pole of the permanent magnet above the right C-shaped permanent magnet branch is tightly attached to the left side surface of the upper end of the iron core of the vertical section, the S pole of the permanent magnet below the right C-shaped permanent magnet branch is tightly attached to the lower convex part of the right side surface of the vertical frame, and the N pole of the permanent magnet below the right C-shaped permanent magnet branch is tightly attached to the left side surface of the lower end of the iron core of the vertical section.

4. A hybrid excitation bi-directional flux controllable device as claimed in claim 1, 2 or 3, wherein: the closed-loop soft magnetic core is a rectangular soft magnetic core, the upper opening end face and the lower opening end face of the left C-shaped permanent magnetic branch are tightly attached to the left side face of the right vertical section of the rectangular soft magnetic core, the upper opening end face and the lower opening end face of the right C-shaped permanent magnetic branch are tightly attached to the right side face of the right vertical section of the rectangular soft magnetic core, the upper opening end of the left C-shaped permanent magnetic branch is an S pole, the lower opening end of the left C-shaped permanent magnetic branch is an N pole, the upper opening end of the right C-shaped permanent magnetic branch is an N pole, the lower opening end of the right C-shaped permanent magnetic branch is an S pole, the excitation coil is wound on the right vertical section of the rectangular soft magnetic core and is limited between the upper opening end and the lower opening end of the left C-shaped permanent magnetic branch, and the output coil is wound on the left vertical section of the rectangular soft magnetic core.

5. A hybrid excitation bi-directional flux controllable device as claimed in claim 1, 2 or 3, wherein: the open-loop soft magnetic core is a C-shaped soft magnetic core, the upper opening end face and the lower opening end face of the left C-shaped permanent magnetic branch are tightly attached to the left side face of the vertical section of the C-shaped soft magnetic core, the upper opening end face and the lower opening end face of the right C-shaped permanent magnetic branch are tightly attached to the right side face of the vertical section of the C-shaped soft magnetic core, the upper opening end of the left C-shaped permanent magnetic branch is an S pole, the lower opening end of the left C-shaped permanent magnetic branch is an N pole, the upper opening end of the right C-shaped permanent magnetic branch is an N pole, the lower opening end of the right C-shaped permanent magnetic branch is an S pole, and the excitation coil is wound on the vertical section of the C-shaped soft magnetic core and limited between the upper opening end and the lower opening end of the left C-shaped permanent magnetic branch.

6. A hybrid excitation bi-directional flux controllable device as claimed in claim 1, 2 or 3, wherein: the open-loop soft magnetic core is a U-shaped soft magnetic core, the upper opening end face and the lower opening end face of the left C-shaped permanent magnetic branch are tightly attached to the left side face of the vertical section of the U-shaped soft magnetic core, the upper opening end face and the lower opening end face of the right C-shaped permanent magnetic branch are tightly attached to the right side face of the vertical section of the U-shaped soft magnetic core, the upper opening end of the left C-shaped permanent magnetic branch is an S pole, the lower opening end of the left C-shaped permanent magnetic branch is an N pole, the upper opening end of the right C-shaped permanent magnetic branch is an N pole, the lower opening end of the right C-shaped permanent magnetic branch is an S pole, and the excitation coil is wound on the vertical section of the U-shaped soft magnetic core and limited between the upper opening end and the lower opening end of the left C-shaped permanent magnetic branch.

Technical Field

The invention relates to an electromagnetic conversion device, in particular to an electromagnetic conversion device with compound excitation and adjustable magnetic field direction.

Background

An important form of permanent magnet static energy utilization is to adopt a compound excitation mode, and compound and superpose the static magnetic potential of the permanent magnet and the dynamic magnetic potential generated by the excitation coil, so as to form compound magnetic flux in an outer loop. However, since the magnetic field direction and the magnetic flux of the permanent magnet cannot be randomly regulated and controlled, the function and design of the magnetic circuit are greatly limited, and the permanent magnet energy cannot be fully developed and utilized.

Disclosure of Invention

The invention aims to provide a composite excitation magnetic flux bidirectional controllable device.

In order to achieve the above object, the present invention provides a composite excitation bi-directional magnetic flux controllable device, which comprises an excitation coil, a closed-loop soft magnetic core or an open-loop soft magnetic core, and is characterized in that: the magnetic field excitation device is characterized by further comprising a left C-shaped permanent magnetic branch and a right C-shaped permanent magnetic branch, wherein the left C-shaped permanent magnetic branch and the right C-shaped permanent magnetic branch are respectively composed of a permanent magnet and an iron core material, the upper and lower opening end surfaces of the left C-shaped permanent magnetic branch are tightly attached to the left side surface of a right vertical frame of the closed-loop soft magnetic iron core or the open-loop soft magnetic iron core, the upper and lower opening end surfaces of the right C-shaped permanent magnetic branch are tightly attached to the right side surface of the right vertical frame of the closed-loop soft magnetic iron core or the open-loop soft magnetic iron core, the upper opening end of the left C-shaped permanent magnetic branch is an S pole, the lower opening end of the left C-shaped permanent magnetic branch is an N pole, the upper opening end of the right C-shaped permanent magnetic branch is an S pole, and the excitation coil is wound on the right vertical frame of the closed-loop soft magnetic iron core or the open-loop soft magnetic iron core and limited between the upper and lower opening ends of the left C-shaped permanent magnetic branch and the right C-shaped permanent magnetic branch.

In the technical scheme, the left C-shaped permanent magnet branch is composed of an upper permanent magnet, a lower permanent magnet, a vertical section iron core, an upper horizontal section iron core and a lower horizontal section iron core, one end of each of the upper horizontal section iron core and the lower horizontal section iron core is tightly attached to the left side surface of a vertical frame on the right side of the soft magnetic iron core, the N pole of the upper permanent magnet is tightly attached to the right side surface of the upper end of the vertical section iron core, the S pole of the upper permanent magnet is tightly attached to the other end of the upper horizontal section iron core, the S pole of the lower permanent magnet is tightly attached to the right side surface of the lower end of the vertical section iron core, and the N pole of the lower permanent magnet is tightly attached to the other end of the lower horizontal section iron core; the right side C shape permanent magnetism branch road comprises top permanent magnet, below permanent magnet, vertical section iron core, upper horizontal section iron core, lower horizontal section iron core, the right flank of the vertical frame in soft magnetic core right side is hugged closely to the one end of upper horizontal section iron core and lower horizontal section iron core, vertical section iron core upper end left surface is hugged closely to top permanent magnet S utmost point, the other end of upper horizontal section iron core is hugged closely to top permanent magnet N utmost point, vertical section iron core lower extreme left surface is hugged closely to below permanent magnet N utmost point, the other end of horizontal section iron core is hugged closely to below permanent magnet S utmost point. The arrangement of the four permanent magnets of the C-shaped permanent magnet branch circuits on the left side and the right side meets the following condition that in a static state (the input of the excitation coil is zero), the four permanent magnets form a closed magnetic loop through the soft magnetic core and can form a series closed loop with consistent magnetic flux and magnetic field directions.

In the technical scheme, two convex parts are arranged above and below the left side surface of a right vertical frame of the closed-loop soft magnetic core or the open-loop soft magnetic core, two convex parts are arranged above and below the right side surface, the upper convex part and the lower convex part on the left side and the right side of the vertical frame are oppositely arranged or staggered, the S pole of the upper permanent magnet of the left C-shaped permanent magnetic branch is tightly attached to the upper convex part on the left side surface of the vertical frame, the N pole of the upper permanent magnet is tightly attached to the right side surface on the upper end of the vertical section iron core, the S pole of the permanent magnet below the left C-shaped permanent magnetic branch is tightly attached to the right side surface on the lower end of the vertical section iron core, and the N pole of the lower permanent magnet is tightly attached to the lower convex part on the left side surface of the vertical frame; the N pole of the permanent magnet above the right C-shaped permanent magnet branch is tightly attached to the upper convex part of the right side surface of the vertical frame, the S pole of the permanent magnet above the right C-shaped permanent magnet branch is tightly attached to the left side surface of the upper end of the iron core of the vertical section, the S pole of the permanent magnet below the right C-shaped permanent magnet branch is tightly attached to the lower convex part of the right side surface of the vertical frame, and the N pole of the permanent magnet below the right C-shaped permanent magnet branch is tightly attached to the left side surface of the lower end of the iron core of the vertical section.

The relative arrangement or staggered arrangement of the upper and lower convex parts on the left and right sides of the vertical frame means that the upper and lower convex parts on the left and right sides of the vertical frame are arranged horizontally in pairs, or the upper and lower convex parts on the left and right sides of the vertical frame are arranged in a staggered manner at different heights. Based on the technical scheme, the closed-loop soft magnetic core is a rectangular soft magnetic core, the upper and lower opening end faces of the left C-shaped permanent magnetic branch are tightly attached to the left side face of the right vertical section of the rectangular soft magnetic core, the upper and lower opening end faces of the right C-shaped permanent magnetic branch are tightly attached to the right side face of the right vertical section of the rectangular soft magnetic core, the upper opening end of the left C-shaped permanent magnetic branch is an S pole, the lower opening end of the left C-shaped permanent magnetic branch is an N pole, the upper opening end of the right C-shaped permanent magnetic branch is an N pole, the lower opening end of the right C-shaped permanent magnetic branch is an S pole, the excitation coil is wound on the right vertical section of the rectangular soft magnetic core and limited between the upper and lower opening ends of the left C-shaped permanent magnetic branch, and the output coil is wound on the left vertical section of the rectangular soft magnetic core.

Based on the technical scheme, the open-loop soft magnetic core is a C-shaped soft magnetic core, the upper opening end face and the lower opening end face of the left C-shaped permanent magnetic branch are tightly attached to the left side face of the vertical section of the C-shaped soft magnetic core, the upper opening end face and the lower opening end face of the right C-shaped permanent magnetic branch are tightly attached to the right side face of the vertical section of the C-shaped soft magnetic core, the upper opening end of the left C-shaped permanent magnetic branch is an S pole, the lower opening end of the left C-shaped permanent magnetic branch is an N pole, the upper opening end of the right C-shaped permanent magnetic branch is an N pole, the lower opening end of the right C-shaped permanent magnetic branch is an S pole, and the excitation coil is wound on the vertical section of the C-shaped soft magnetic core and limited between the upper opening end and the lower opening end of the left C-shaped permanent magnetic branch.

Based on the technical scheme, the open-loop soft magnetic core is a U-shaped soft magnetic core, the upper opening end face and the lower opening end face of the left C-shaped permanent magnetic branch are tightly attached to the left side face of the vertical section of the U-shaped soft magnetic core, the upper opening end face and the lower opening end face of the right C-shaped permanent magnetic branch are tightly attached to the right side face of the vertical section of the U-shaped soft magnetic core, the upper opening end of the left C-shaped permanent magnetic branch is an S pole, the lower opening end of the left C-shaped permanent magnetic branch is an N pole, the upper opening end of the right C-shaped permanent magnetic branch is an N pole, the lower opening end of the right C-shaped permanent magnetic branch is an S pole, and the excitation coil is wound on the vertical section of the U-shaped soft magnetic core and limited between the upper opening end and the lower opening end of the left C-shaped permanent magnetic branch.

The invention has the advantages that:

1. the device obtains higher composite magnetic flux after superposition of the dynamic permanent magnetic flux and the excitation magnetic flux by using smaller current, and can obtain obvious high efficiency, large torque, energy conservation and environmental protection in various application occasions.

2. The device changes the constant permanent magnetic field direction into the composite magnetic flux with controllable direction, provides a basic unit device with wide application prospect for the creative magnetic circuit design, and can promote the new development of permanent magnetic energy application.

3. The bidirectional composite excitation magnetic flux has continuous stepless adjustable function, and can realize high-efficiency remote closed-loop automatic control functions of voltage stabilization, speed stabilization, current stabilization, constant torque and the like.

4. The device greatly improves the utilization rate of the permanent magnet, saves energy, protects the environment and has important significance for protecting rare earth permanent magnet of strategic materials in China.

5. The device has the advantages of ingenious structure, small volume, light weight, low cost and high cost performance.

Drawings

FIG. 1 is a schematic diagram of the state of the rectangular soft magnetic core composite excitation magnetic flux bidirectional controllable device when the input current of the excitation coil is zero.

Fig. 2 is a schematic diagram of the state of the excitation coil of the rectangular soft magnetic core composite excitation magnetic flux bidirectional controllable device of the invention when a forward current is input.

Fig. 3 is a schematic diagram of the state of the rectangular soft magnetic core composite excitation magnetic flux bidirectional controllable device exciting coil inputting reverse current.

Fig. 4 is a schematic diagram of the state when the input current of the excitation coil of the C-shaped soft magnetic core composite excitation magnetic flux bidirectional controllable device is zero.

Fig. 5 is a schematic diagram of the state of the C-shaped soft magnetic core composite excitation flux bidirectional controllable device when the excitation coil inputs the forward current.

Fig. 6 is a schematic diagram of the state of the C-shaped soft magnetic core composite excitation flux bidirectional controllable device of the invention when the exciting coil inputs reverse current.

Fig. 7 is a schematic circuit diagram of a circuit when the rectangular soft magnetic core composite excitation magnetic flux bidirectional controllable device is applied to a transformer and the input current of the excitation coil is zero according to the first embodiment of the invention.

Fig. 8 is a schematic circuit diagram of a circuit when a rectangular soft magnetic core composite excitation magnetic flux bidirectional controllable device is applied to a transformer and a forward current is input to an excitation coil according to a first embodiment of the invention.

Fig. 9 is a schematic circuit diagram of a circuit when a rectangular soft magnetic core composite excitation magnetic flux bidirectional controllable device is applied to a transformer and a reverse current is input to an excitation coil according to a first embodiment of the invention.

Fig. 10 is a schematic structural diagram of an example in which the C-shaped soft magnetic core hybrid excitation flux bidirectional controllable device is applied to a motor generator according to the second embodiment of the present invention.

In the above drawings, 11 is a left vertical frame of the rectangular iron core, 12 is an upper horizontal frame of the rectangular iron core, 13 is a lower horizontal frame of the rectangular iron core, 14 is a right vertical frame of the rectangular iron core, 21 is an upper horizontal iron core section, 22 is an upper permanent magnet, 23 is a vertical iron core section, 24 is a lower permanent magnet, 25 is a lower horizontal iron core section, 31 is an upper horizontal iron core section, 32 is an upper permanent magnet, 33 is a vertical iron core section, 34 is a lower permanent magnet, 35 is a lower horizontal iron core section, 41 is a field coil, Φ_YongleftingIs a permanent magnetic flux phi formed by the left C-shaped permanent magnetic branch and the right vertical frame of the rectangular iron core_YongrightingIs the permanent magnetic flux phi formed by the right C-shaped permanent magnetic branch and the right vertical frame of the rectangular iron core_{About forever}Is a permanent magnetic flux phi formed by the right C-shaped permanent magnetic branch and the left C-shaped permanent magnetic branch through the right vertical frame of the rectangular iron core_{Permanently right and left}The permanent magnetic flux phi formed by the left C-shaped permanent magnetic branch and the right C-shaped permanent magnetic branch through the right vertical frame of the rectangular iron core_{Exciting device}Is an excitation flux, phi, formed by the input of a forward current to the excitation coil_{Forever correcting}Is a permanent magnetic flux formed by the input of a forward current to the exciting coil_{Excitation feedback}Is an exciting magnetic flux formed by the input of a reverse current to the exciting coil_{Permanent reflection}The permanent magnetic flux is formed by inputting reverse current to the exciting coil.

101 is a left vertical frame of the rectangular iron core, 102 is an upper horizontal frame of the rectangular iron core, 103 is a lower horizontal frame of the rectangular iron core, 104 is a right vertical frame of the rectangular iron core, 105 is an upper horizontal iron core section, 106 is an upper permanent magnet, 107 is a vertical iron core section, 108 is a lower permanent magnet, 109 is a lower horizontal iron core section, 110 is an upper horizontal iron core section, 111 is an upper permanent magnet, 112 is a vertical iron core section, 113 is a lower permanent magnet, 114 is a lower horizontal iron core section, 115 is an excitation coil, and 116 is an output coil.

201 is a C-shaped soft magnetic iron core, 202 is an upper convex part, 203 is an upper permanent magnet, 204 is an iron core vertical section, 205 is a permanent magnet, and 206 is a positioning hole for fixing the permanent magnet and the rotor seat.

Detailed Description

First embodiment, this embodiment is a specific application of a rectangular soft magnetic core hybrid excitation flux bidirectional controllable device in a transformer, and the structure thereof is shown in fig. 7 to 9.

In this embodiment, the upper horizontal iron core 105, the upper permanent magnet 106, the vertical iron core 107, the lower permanent magnet 108 and the lower horizontal iron core 109 of the left C-shaped permanent magnet branch are formed, the N pole of the upper permanent magnet 106 is tightly attached to the right side surface of the upper end of the vertical iron core 107, the S pole of the upper permanent magnet 106 is tightly attached to the upper horizontal iron core 105, the S pole of the lower permanent magnet 108 is tightly attached to the right side surface of the lower end of the vertical iron core 107, the N pole of the lower permanent magnet 108 is tightly attached to the lower horizontal iron core 109, the upper opening end of the left C-shaped permanent magnet branch is S pole, and the N pole of the lower opening end is N pole; horizontal section iron core 110 on the right side C shape permanent magnetism tributary, top permanent magnet 111, vertical section iron core 112, below permanent magnet 113, horizontal section iron core 114 constitutes down, the S utmost point of top permanent magnet 111 hugs closely vertical section iron core 112 upper end left surface, the N utmost point of top permanent magnet 111 hugs closely upper horizontal section iron core 110, the N utmost point of below permanent magnet 113 hugs closely vertical section iron core 112 lower extreme left surface, the S utmost point of below permanent magnet 113 hugs closely lower horizontal section iron core 114, the upper open end of right side C shape permanent magnetism tributary is the N utmost point, lower open end S utmost point. The upper and lower opening end surfaces of the left C-shaped permanent magnetic branch are tightly attached to the left side surface of the right vertical frame 104 of the rectangular soft magnetic iron core, and the upper and lower opening end surfaces of the right C-shaped permanent magnetic branch are tightly attached to the right side surface of the right vertical frame 104 of the rectangular soft magnetic iron core. The excitation coil 115 is wound on the middle section of the right vertical frame 104 of the rectangular iron core and limited between the upper and lower open ends of the left and right C-shaped permanent magnet branches, and the output coil 116 is wound on the left vertical frame of the rectangular iron core.

In this embodiment, the position of the upper horizontal iron core 105 of the left C-shaped permanent magnet branch is lower than that of the upper horizontal iron core 110 of the right C-shaped permanent magnet branch, and correspondingly, the lower horizontal iron core 109 of the left C-shaped permanent magnet branch is lower than that of the upper horizontal iron core 114 of the right C-shaped permanent magnet branch.

When the input current to the exciter coil is zero, see fig. 7, the transformer is in a quiescent state. Left side of rectangular soft magnetic iron coreThere is no excitation flux in the rim. The right C-shaped permanent magnetic branch and the left C-shaped permanent magnetic branch form a series closed loop with the same magnetic flux and magnetic field direction through the rectangular soft magnetic iron core right side frame, namely the permanent magnetic flux phi_{Permanently right and left}And permanent magnetic flux phi_{About forever}. Meanwhile, a permanent magnetic flux phi is formed between the left C-shaped permanent magnetic branch and the right frame of the rectangular soft magnetic iron core_YongleftingAnd a permanent magnetic flux phi is formed between the right C-shaped permanent magnetic branch and the right frame of the rectangular soft magnetic iron core_Yongrighting。

When the excitation coil inputs a forward current, referring to fig. 8, an excitation magnetic flux Φ is formed in the left side frame of the rectangular soft magnetic core_{Exciting device}Meanwhile, under the action of the forward current of the excitation coil, the original closed permanent magnetic flux phi in the right C-shaped permanent magnetic branch_{Permanently right and left}Permanent magnetic flux phi_{About forever}、Φ_YongrightingIs opened to form phi in the rectangular soft magnetic core loop_YongrightingAt this point, a forward electromotive force is induced in the output coil 116. When the forward current input to the exciting coil changes in magnitude, phi accordingly_{Exciting device}And phi_YongrightingThe sum of the magnetic fluxes also changes in magnitude.

Similarly, when the exciting coil inputs a reverse current, referring to fig. 9, an exciting magnetic flux Φ is formed in the left side frame of the rectangular soft magnetic core_{Excitation feedback}Meanwhile, under the action of the reverse current of the excitation coil, the original closed permanent magnetic flux phi in the left C-shaped permanent magnetic branch_{Permanently right and left}Permanent magnetic flux phi_{About forever}、Φ_YongleftingIs opened to form phi in the rectangular soft magnetic core loop_YongleftingAt this point, a back electromotive force is induced in the output coil 116. When the reverse current inputted to the exciting coil changes in magnitude, accordingly, phi_{Excitation feedback}And phi_YongleftingThe sum of the magnetic fluxes also changes in magnitude.

In the second embodiment, the C-shaped soft magnetic core hybrid excitation flux bidirectional controllable device is applied to a motor, and the structure of the C-shaped soft magnetic core hybrid excitation flux bidirectional controllable device is shown in fig. 4 to 6.

When the input current to the exciter coil is zero, the device is in a quiescent state, see fig. 4. The left opening end of the C-shaped soft magnetic core is not provided with magnetic potential, the right C-shaped permanent magnetic branch passes through the right frame of the C-shaped soft magnetic core and forms a series closed loop with the same magnetic flux and magnetic field direction with the left C-shaped permanent magnetic branch, namely the permanent magnetic flux phi_{Permanently right and left}And permanent magnetic flux phi_{About forever}. Meanwhile, a permanent magnetic flux phi is formed between the left C-shaped permanent magnetic branch and the right frame of the rectangular soft magnetic iron core_YongleftingAnd a permanent magnetic flux phi is formed between the right C-shaped permanent magnetic branch and the right frame of the rectangular soft magnetic iron core_Yongrighting。

When the excitation coil inputs a forward current, referring to fig. 5, under the action of the forward current of the excitation coil, an excitation magnetic potential is formed at the left opening end of the C-shaped soft magnetic core, and meanwhile, the originally closed permanent magnetic flux phi in the right C-shaped permanent magnetic branch is formed_{Permanently right and left}、Φ_{About forever}、Φ_YongrightingThe opening of the C-shaped soft magnetic iron core is opened, permanent magnetic potential can be formed at the opening end of the left side of the C-shaped soft magnetic iron core, at the moment, excitation magnetic potential and permanent magnetic potential are superposed at the opening end of the left side of the C-shaped soft magnetic iron core to form composite excitation magnetic potential, the opening upper end is made to present an N pole, the opening lower end is made to present an S pole, forward current input into the excitation coil is changed in size, and accordingly the composite excitation magnetic potential at the opening end of the left side of the C-shaped soft magnetic iron core can also be changed in size.

Similarly, when the exciting coil inputs a reverse current, see fig. 6, under the action of the reverse current of the exciting coil, an exciting magnetic potential is formed at the left opening end of the C-shaped soft magnetic core, and meanwhile, the originally closed permanent magnetic flux Φ in the left C-shaped permanent magnetic branch is formed_{Permanently right and left}、Φ_{About forever}、Φ_YongleftingThe opening is opened, permanent magnetic potential can be formed at the opening end on the left side of the C-shaped soft magnetic iron core, at the moment, the excitation magnetic potential and the permanent magnetic potential can be superposed at the opening end on the left side of the C-shaped soft magnetic iron core to form composite excitation magnetic potential, so that the opening upper port presents an S pole, the lower port presents an N pole, and when the reverse current is input into the excitation coil, the size of the reverse current is changed, and correspondingly, the composite excitation magnetic potential at the opening end on the left side of the C-shaped soft magnetic iron core can also be changed in size.

When the direction of the input current in the excitation coil is changed in a positive and negative alternating mode, the magnetic polarity of the composite excitation magnetic potential at the left opening end of the C-shaped soft magnetic iron core is correspondingly changed in an alternating mode.

As shown in fig. 10, the motor stator is composed of six C-shaped soft magnetic core compound excitation magnetic flux bidirectional controllable devices as a compound excitation unit, wherein upper protrusions 202 and lower protrusions are arranged on two sides of a C-shaped soft magnetic core 201 of the compound excitation unit, the upper protrusions on the two sides and the lower protrusions on the two sides are arranged in a relatively horizontal state, upper permanent magnets 203 are tightly attached to the upper protrusions 202, an iron core vertical section 204 is tightly attached to the upper permanent magnets 203 and the lower permanent magnets, a motor rotor is formed by annularly arranging eight permanent magnets 205, the magnetic pole directions of the eight permanent magnets are radial, and the magnetic polarities of two adjacent permanent magnets are different. Magnetic acting force of 'sucking and pushing' can be generated between each compound excitation unit with compound excitation magnetic potential on the stator and each permanent magnet on the rotor, and efficient operation of the motor is achieved. For the operation mechanism of such a motor, please refer to the chinese patent "ac permanent magnet synergistic reluctance motor" (patent No. ZL 201310584450.5).