Motor operation controller

Abstract

The invention discloses a motor operation controller, which relates to the technical field of motors, is used for controlling positive and negative rotation of a motor rotor relative to a motor stator, and comprises a winding current trigger and a rotor positioner, the trigger boss controls the stator winding to be powered on or powered off in a jacking state and a falling-back state by arranging an electric contact. The rotor positioner is provided with a positioner body which is rigidly connected with a motor rotor and rotates synchronously with the motor rotor, and further comprises a ball mechanism, and when a ball group moves to any position, an electric contact arranged on a trigger boss always only enables a stator winding capable of continuing to magnetically pull the motor rotor to rotate to be electrified.

Description

Technical Field

[0001] The invention relates to the technical field of motors, and in particular to a motor operation controller. Background Art

[0002] In electric vehicles, the motor controller is a key component for realizing the conversion of the battery's DC power supply and the motor's AC power consumption, and realizing the motor's driving operation. It is a core power component of electric vehicles and must be able to operate continuously and reliably. There are many types of existing motor controllers, but the layout structures are similar. There are some problems in reliability and durability verification, such as poor heat dissipation of the drive module, which affects the life of the IGBT (Insulated Gate Bipolar Transistor) and the overall efficiency of the system; the control board and the drive board are not well isolated, and the electromagnetic compatibility is poor. What is particularly serious is that the existing electric vehicle motor controller has only a thick metal shell on the outside. After being disturbed by the strong electromagnetic field from the outside, the electromagnetic field instantly reaches magnetic saturation on the metal shell. After the electromagnetic field breaks through the metal shell, it instantly attacks the core electronic devices in the electric vehicle motor controller integrated circuit, making the motor controller unable to work normally, and causing the electric vehicle drive motor to lose control and cause traffic accidents. Summary of the invention

[0003] The purpose of the present invention is to provide a motor operation controller which adopts a mechanical structure. Compared with the motor electronic controller, it is not affected by strong electromagnetic interference and is more suitable for realizing the forward and reverse control of motors such as switched reluctance motors and permanent magnet motors in a strong electromagnetic interference environment.

[0004] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

[0005] A motor operation controller provided by the present invention is used for forward and reverse rotation control of a motor rotor relative to a motor stator, and includes a winding current trigger and a rotor positioner, wherein the winding current trigger includes:

[0006] The trigger boss mechanism comprises a trigger boss which is aligned with the stator winding in spatial position, and the trigger boss has a compressed state and a free state: in the free state, the trigger boss is in a raised state by an elastic structure, and in the compressed state, the elastic structure is compressed to make the trigger boss in a fallen state; the trigger boss controls the stator winding to be energized or deenergized in the raised state and the fallen state by setting an electrical contact;

[0007] A concave slide rail, wherein the concave slide rail is filled between the trigger bosses that are intermittently arranged in space, and together with the trigger bosses, forms a circular track;

[0008] The rotor positioner has a positioner body rigidly connected to the motor rotor and rotating synchronously, and also includes:

[0009] The ball mechanism has a ball group that is aligned with the salient pole of the motor rotor in spatial position, the ball group is assembled in a countersunk hole opened in the positioner body through a ball bracket, and a compression spring that pushes up the ball bracket is arranged in the countersunk hole so that the ball group always protrudes from the end face of the positioner body;

[0010] The annular track formed by the concave slide rail and the trigger boss is configured to fit the rotation path of the ball group and match the contour of the ball group to maintain smoothness when the rotor positioner rotates;

[0011] When the ball group moves to the trigger boss, the trigger boss is in the compressed state, and when the ball group leaves the trigger boss, the trigger boss is in the free state;

[0012] Furthermore, when the ball assembly moves to any position, the electrical contacts provided on the trigger boss always energize only the stator winding that can continue to magnetically traction the motor rotor to rotate.

[0013] Furthermore, it also includes a controller housing, the winding current trigger also includes a positioning cover body, the trigger boss mechanism and the concave slide rail are assembled on the positioning cover body, the positioning cover body and the controller housing are threadedly assembled, the rotor positioner is arranged in a cavity between the positioning cover body and the controller housing, and the transmission shaft of the motor rotor passes through the controller housing into the cavity and is threadedly connected to the positioner body.

[0014] Furthermore, the rotor positioner also includes a locking bolt for locking the transmission shaft and the positioner body. After locking, the locking bolt allows the salient pole of the motor rotor to be aligned with the ball group in spatial position. The locking bolt also has a single-sided convex edge. The controller housing is provided with a controller bearing at the point where the transmission shaft passes through. The single-sided convex edge of the locking bolt is used to cooperate and tighten the inner ring of the controller bearing.

[0015] Furthermore, a positioning boss corresponding to the trigger boss is arranged at the edge of the positioning cover, and the positioning boss is used to align the positioning boss with the stator winding when installed in the motor housing.

[0016] Furthermore, ventilation windows are evenly provided on the positioner body, ventilation ports are provided on the positioning cover, ventilation holes are provided on the controller housing, and the ventilation ports, ventilation holes and ventilation windows are arranged in a circular array along the axial direction.

[0017] Furthermore, the elastic structure includes an inner mounting groove of the slide rail, a spring-loaded spring, and a pair of insulating transmission rods, the trigger boss is slidably assembled in the inner mounting groove of the slide rail through the pair of insulating transmission rods, the spring-loaded spring is sleeved outside the insulating transmission rods, and is tightly assembled between the inner mounting groove of the slide rail and the trigger boss;

[0018] The bottom of one of the insulating transmission rods corresponds to two normally open elastic contact points through a normally open connection fork, and the bottom of the other insulating transmission rod is provided with a normally closed connection fork and two normally closed elastic contact points connected by the normally closed connection fork;

[0019] When the trigger boss is pressed down and in a falling state, the normally open elastic contact point contacts the normally open connection fork to be connected, and the normally closed connection fork is pushed away by the insulating transmission rod and disconnected from the normally closed elastic contact point;

[0020] The two normally open elastic contact points and the two normally closed elastic contact points are used to control the on and off of the stator winding.

[0021] Furthermore, a sealing ring is provided in the threaded assembly gap between the positioning cover and the controller housing, a sealing gasket is provided at the bottom of the mounting groove in the slide rail, an observation window and a sealing bolt are provided on the circumferential surface of the controller housing, and the openings of the vent and the air hole both have a downward inclination angle.

[0022] Furthermore, the stator windings of the motor stator are evenly provided with six groups, and the salient poles of the motor rotor are evenly provided with four groups.

[0023] Furthermore, the controller housing is filled with lubricating oil whose liquid level is lower than the vent and the air hole.

[0024] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects:

[0025] On the one hand, the biggest advantage of the motor operation controller of the present invention over the electronic motor controller is that it is not affected by strong electromagnetic interference and is more adaptable to strong electromagnetic interference environments, especially when subjected to electromagnetic pulses. Electronic controllers are based on electronic circuits and will fail when subjected to electromagnetic interference and electromagnetic pulses. Especially for motors in the military field, the anti-electromagnetic interference characteristics of the controller of the present invention are particularly important.

[0026] On the other hand, the motor operation controller of the present invention has high temperature resistance. Some special motors need to operate at high temperatures. If an electronic controller is used at a temperature above 100°C, there is a risk of circuit board desoldering and failure unless a special cooling system is provided. However, the mechanical controller of the present invention does not have the risk of circuit board desoldering. In theory, it can be used normally as long as the temperature does not cause plastic deformation of the device structure. Therefore, for motors used at high temperatures, the motor operation controller of the present invention has obvious advantages in high temperature resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0028] Figure 1 It is a structural schematic diagram of the motor operation controller of the present invention.

[0029] Figure 2 It is a schematic diagram of the front and back structures of the winding current trigger in Example 1.

[0030] Figure 3 This is one of the structural schematic diagrams of the rotor positioner in Example 1.

[0031] Figure 4 This is the second structural schematic diagram of the rotor positioner in Example 1.

[0032] Figure 5 It is a schematic diagram of the coordination relationship between the winding current trigger and the rotor positioner in Example 1.

[0033] Figure 6 It is a schematic diagram of the structure of the controller housing in Example 1.

[0034] Figure 7 It is a structural schematic diagram of the trigger boss in Example 1.

[0035] Figure 8 Schematic diagram of the positional relationship between the trigger boss and the ball assembly at different rotation moments in Example 1.

[0036] Fig. 9 1 is a motor control circuit diagram of the motor operation controller in Example 1.

[0037] Fig.10 It is a schematic diagram of the control relationship between the motor operation controller and the motor in Example 1.

[0038] In the figure:

[0039] 100, winding current trigger, 200, rotor positioner, 300, controller housing, 400, motor stator, 500, motor rotor;

[0040] 110. trigger boss mechanism, 111. trigger boss, 112. elastic structure, 1121. mounting groove in the slide rail, 1122. spring top spring, 1123. insulating transmission rod, 1124. normally open connecting fork, 1125. normally open elastic contact point, 1126. normally closed connecting fork, 1127. normally closed elastic contact point, 1128. sealing gasket, 120. concave slide rail, R1. annular track; 130. positioning cover body, 131. positioning boss, 132. vent, 133. sealing ring, 134. cover body thread;

[0041] 210, positioner body, 211, countersunk hole, 212, compression spring, 213, vent window, 220, ball mechanism, 221, ball group, 222, ball bracket, 230, locking bolt, 231, single-side convex edge;

[0042] 310, controller bearing, 320, vent hole, 330, observation window, 340, blocking bolt;

[0043] 410, stator winding;

[0044] 510. Salient pole. DETAILED DESCRIPTION

[0045] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0046] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0047] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0048] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0049] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0050] Example 1

[0051] As shown in the figure, a motor operation controller is used for forward and reverse control of a motor rotor 500 relative to a motor stator 400. In this embodiment, six groups of stator windings 410 of the motor stator 400 are evenly arranged, and the central angle corresponding to each stator winding 410 is 30°, and the central angle interval between adjacent stator windings 410 is also 30°. Four salient poles 510 of the motor rotor 500 are evenly arranged, and the central angle corresponding to each salient pole 510 is 30°, and the central angle interval between adjacent salient poles is 60°.

[0052] It includes a winding current trigger 100 and a rotor positioner 200, wherein the winding current trigger 100 includes:

[0053] The trigger boss mechanism 110 includes a trigger boss 111 which is aligned with the stator winding 410 in spatial position. The trigger boss 111 has a compressed state and a free state. In the free state, the trigger boss 111 is in a raised state by the elastic structure 112, and in the compressed state, the elastic structure 112 is compressed to make the trigger boss 111 in a dropped state. The trigger boss 111 controls the stator winding 410 to be energized or de-energized in the raised state and the dropped state by setting electrical contacts.

[0054] A concave slide rail 120, wherein the concave slide rail 120 is filled between the trigger bosses 111 that are intermittently arranged in space, and together with the trigger bosses 111, forms a circular track R1;

[0055] The rotor positioner 200 has a positioner body 210 rigidly connected to the motor rotor 500 and rotating synchronously, and also includes:

[0056] The ball mechanism 220 has a ball group 221 which is aligned with the salient pole 510 of the motor rotor 500 in spatial position. The ball group 221 is assembled in a counterbore 211 provided in the positioner body 210 through a ball bracket 222, and a compression spring 212 which pushes up the ball bracket 222 is provided in the counterbore 211 so that the ball group 221 always protrudes from the end surface of the positioner body 210.

[0057] The annular track R1 formed by the concave slide rail 120 and the trigger boss 111 is configured to fit the rotation path of the ball group 221 and match the profile of the ball group 221 to maintain smoothness when the rotor positioner 200 rotates;

[0058] Specifically, the trigger boss 111 has chamfers at both ends, which is beneficial to the movement of the ball group 221 and reduces the impact of the ball group 221 on the trigger boss 111. In addition, the radial surface of the trigger boss 111 has a curvature shape that matches the spherical surface of the ball group 221, which is beneficial to the movement of the balls. Moreover, the curvature shape of the concave slide rail 120 matches the curvature shape of the spherical surface of the ball group 221; the curvature shape of the circumferential surface of the trigger boss 111 is consistent with the curvature shape of the concave slide rail 120, and also matches the curvature shape of the spherical surface of the ball group 221; the width of the trigger boss 111 is slightly narrower than the width of the concave slide rail 120, ensuring that the ball group 221 is also supported by the concave slide rail 120 when passing through the trigger boss 111, which is beneficial to the movement of the ball group 221.

[0059] In addition, the opening of the countersunk hole 211 should be designed with a tapered opening, and the diameter of the tapered opening should be smaller than the diameter of the balls in the ball group 221 to prevent the balls from falling out of the countersunk hole 221 during rolling. During assembly, an appropriate gap should be maintained between the winding current trigger 100 and the rotor positioner 200 so that the ball group 221 is always pressed against the circular track R1.

[0060] When the ball group 221 moves to the trigger boss 111, the trigger boss 111 is in the compressed state, and when the ball group 221 leaves the trigger boss 111, the trigger boss 111 is in the free state;

[0061] Furthermore, when the ball assembly 221 moves to any position, the electrical contacts provided by the trigger boss 111 always only energize the stator winding 410 that can continue to magnetically traction the motor rotor 500 to rotate.

[0062] Since there are six stator windings 410, the stator windings 410 on the same axis are grouped and marked into three groups A1-A2, B1-B2, and C1-C2. For the convenience of subsequent description, A1 and A2 (coaxial), B1 and B2 (coaxial), and C1 and C2 (coaxial). The motor rotor 500 has four salient poles 510, which are marked as a, b, c, and d respectively.

[0063] Therefore, there are six trigger bosses 111, which are marked as a1-a2 (coaxial), b1-b2 (coaxial), and c1-c2 (coaxial) for ease of description. In order to make the concave slide rail 120 and the trigger bosses 111 together form the annular track R1, the trigger bosses 111 should maintain a cross-sectional shape with the same circumferential curvature as the concave slide rail 120, and the circumferential angle of each trigger boss 111 is 30°, and the circumferential angle between two adjacent trigger bosses 111 is also 30°.

[0064] In this embodiment, the rotor positioner 200 rotates synchronously with the motor rotor 500, and the ball group 221 is aligned with the salient pole 510 of the motor rotor 500 in spatial position. It is worth noting that each ball group 221 is arranged in an arc shape with an arc of 30°, and the circumferential angle between the ball groups 221 is 60°, so there are four ball groups 221, which are marked as a', b', c', and d' for ease of explanation.

[0065] Then, during a complete rotation of the ball group 221 along with the motor rotor 500, the ball group 221 will present several different typical positions relative to the trigger boss 111, as shown in the figure, and the position of the ball group 221 relative to the trigger boss 111 also represents the position of the salient pole 510 of the motor rotor 500 relative to the stator winding 410.

[0066] In order to control the rotation of the motor rotor 500, it is necessary that the stator winding 410 can provide the motor rotor 500 with the required magnetic traction to keep it moving when the motor rotor 500 appears at any position. Therefore, it is necessary to adjust the power-on sequence of the stator winding 410 by triggering the boss 111 so that the stator winding 410 can always magnetically pull the motor rotor 500 to rotate at the required position.

[0067] As shown in the figure, as a specific means to achieve the above-mentioned control of the rotation of the motor rotor 500, the elastic structure 112 includes an inner mounting groove 1121 of the slide rail, a spring-loaded spring 1122 and a pair of insulating transmission rods 1123. The trigger boss 111 is slidably assembled in the inner mounting groove 1121 of the slide rail through a pair of insulating transmission rods 1123. The spring-loaded spring 1122 is sleeved outside the insulating transmission rods 1123 and is tightly assembled between the inner mounting groove 1121 of the slide rail and the trigger boss 111; wherein the elastic force of the compression spring 212 is greater than the elastic force of the spring-loaded spring 1122, thereby ensuring that the ball group 221 can always be close to the concave slide rail 120 during the process of squeezing the trigger boss 111 to descend.

[0068] The bottom of one of the insulating transmission rods 1123 corresponds to two normally open elastic contact points 1125 through a normally open connection fork 1124, and the bottom of the other insulating transmission rod 1123 is provided with a normally closed connection fork 1126 and two normally closed elastic contact points 1127 connected by the normally closed connection fork 1126;

[0069] When the trigger boss 111 is pressed down and in a falling state, the normally open elastic contact point 1125 contacts the normally open connection fork 1124 to be connected, and the normally closed connection fork 1126 is pushed away by the insulating transmission rod 1123 and disconnected from the normally closed elastic contact point 1127;

[0070] The two normally open elastic contact points 1125 and the two normally closed elastic contact points 1127 are used to control the on and off of the stator winding 410 .

[0071] Regardless of the initial state of the salient poles 510 of the motor rotor 500 and the stator winding 410, Figure 8 At any position of the motor, when the motor needs to rotate clockwise or counterclockwise, the stator winding 410 can be turned on by triggering the boss 111 according to a certain rule, thereby controlling the movement of the motor rotor 500. Figure 8 As an example, assuming that the initial state of the motor rotor and stator is Figure 8-1 Position, the control rules of rotor position, trigger boss start, and energized winding are shown in Table 1. If the motor rotor and stator are initially in Figure 8 For other positions in , the control rules are similar.

[0072] Table 1 Motor control process and logical relationship

[0073]

[0074]

[0075] The motor control circuit designed according to the motor control process and logical relationship in Table 1 is shown in Fig. 9The controller triggers the circuit when the bosses a1, b1, and c1 control the motor to rotate counterclockwise (see the solid line portion in the figure); the controller triggers the circuit when the bosses a2, b2, and c2 control the motor to rotate clockwise (see the dotted line portion in the figure).

[0076] Combination Figure 8 , Fig. 9 As shown in Table 1 above, take the motor rotating counterclockwise as an example, refer to Figure 8 As shown in 8-1, the ball groups a' and c' are located at the concave slide rail 120 and fail to contact the trigger boss, while the ball groups b' and d' are located at the trigger boss b1-b2. Fig. 9 As shown in b1 state, when Fig. 9 b1 is compressed, so that the C1-C2 and B1-B2 windings are both in a power-off state, while the corresponding stator windings A1-A2 are in a power-on state, so that the rotor salient poles 510 corresponding to the magnetic traction ball groups a' and c' rotate counterclockwise;

[0077] Then in Figure 8-2 At this moment, the ball groups a', c', b', d' can all contact their adjacent trigger bosses a1-a2, b1-b2. Since it rotates counterclockwise, the reference Fig. 9 As shown in b1, a1 state, when Fig. 9 After b1 and a1 are compressed, the C1-C2 and B1-B2 windings are still in the power-off state, while the corresponding stator windings A1-A2 are in the power-on state, thereby continuing to magnetically pull the rotor salient poles 510 corresponding to the ball groups a' and c' to rotate counterclockwise;

[0078] exist Figure 8-3 At this moment, the ball groups b' and d' fail to trigger the trigger boss, while a' and c' just trigger the boss a1-a2. Since it rotates counterclockwise, the reference Fig. 9 As shown, a1 is in a compressed state. At this time, the C1-C2 winding is energized, while the A1-A2 and B1-B2 windings are both in a de-energized state. According to the principle of the shortest magnetic lines of force, the C1-C2 winding can pull the salient poles corresponding to b' and d' to continue to move counterclockwise after being energized.

[0079] exist Figure 8-4 At this moment, the ball groups a', c', b', d' can all contact their adjacent trigger bosses a1-a2, c1-c2. Since it rotates counterclockwise, Fig. 9 In the c1 and a1 states shown, when c1 and a1 are compressed, the corresponding C1-C2 winding is still energized, while the A1-A2 and B1-B2 windings are in the de-energized state, so that the C1-C2 winding can pull the salient poles corresponding to b' and d' to continue to move counterclockwise after being energized.

[0080] exist Figure 8-5 At this moment, the ball groups a' and c' fail to trigger the trigger boss, while b' and d' can just press down the trigger boss c1-c2 at their positions. Since it rotates counterclockwise, the reference Fig. 9 As shown, c1 is in a compressed state. At this time, the B1-B2 winding is energized, while the C1-C2 and A1-A2 windings are both in a de-energized state. According to the principle of the shortest magnetic lines of force, the B1-B2 winding can pull the salient poles corresponding to a' and c' to continue to move counterclockwise after being energized.

[0081] exist Figure 8-6 At this moment, the ball groups a', c', b', d' can all contact their adjacent trigger bosses b1-b2, c1-c2. Since it rotates counterclockwise, refer to Fig. 9 As shown, when b1 and c1 are pressed down, the B1-B2 winding is energized, while the C1-C2 and A1-A2 windings are in the de-energized state. According to the principle of the shortest magnetic lines of force, the B1-B2 winding can pull the salient poles corresponding to a' and c' to continue to move counterclockwise after being energized.

[0082] The above is a description of the control process of controlling the motor rotor to rotate counterclockwise in the present invention. If the motor rotor and stator are initially in the Figure 8 The control rules for other positions in are similar, which can be referred to Fig. 9 When the motor rotor is controlled to rotate clockwise, refer to Fig. 9 The circuit shown by the dotted line part is sufficient.

[0083] The motor operation controller constructed based on the above-mentioned control principle also includes a controller housing 300, and the winding current trigger 100 also includes a positioning cover body 130. The trigger boss mechanism 110 and the concave slide rail 120 are assembled on the positioning cover body 130, and the positioning cover body 130 is threadedly assembled with the controller housing 300. The rotor positioner 200 is arranged in a cavity between the positioning cover body 130 and the controller housing 300, and the transmission shaft 520 of the motor rotor 500 passes through the controller housing 300 into the cavity and is threadedly connected to the positioner body 210.

[0084] More specifically, the rotor positioner 200 also includes a locking bolt 230 for locking the transmission shaft 520 and the positioner body 210. After being locked, the locking bolt 230 allows the salient pole 510 of the motor rotor 500 to be aligned with the ball group 221 in spatial position. The locking bolt 230 also has a single-sided flange 231. The controller housing 300 is provided with a controller bearing 310 at the point where the transmission shaft 520 passes through. The single-sided flange 231 of the locking bolt 230 is used to cooperate with and tighten the inner ring of the controller bearing 310.

[0085] In order to make the position of the stator winding 410 correspond accurately to the position of the trigger boss 111, a positioning boss 131 corresponding to the trigger boss 111 is provided at the edge of the positioning cover 130, and the positioning boss 131 is used to make the positioning boss 131 correspond to and align with the stator winding 410 when installed in the motor housing, so as to prevent the stator winding 410 and the trigger boss 111 from deviating from the position.

[0086] In order to facilitate the heat dissipation of the controller, ventilation windows 213 are evenly provided on the positioner body 210, ventilation ports 132 are provided on the positioning cover 130, and ventilation holes 320 are provided on the controller housing 300. The ventilation ports 132, ventilation holes 320 and ventilation windows 213 are arranged in a circular array along the axial direction. Therefore, when the rotor positioner 200 rotates clockwise or counterclockwise at high speed, the airflow can be pushed axially, so that the airflow flows axially from the ventilation ports 132, ventilation windows 213 and ventilation holes 320, so that a penetrating airflow is formed inside the motor operation controller, thereby improving the heat dissipation efficiency of the controller.

[0087] In order to facilitate the smooth rotation of the controller, the controller housing 300 should be filled with appropriate lubricating oil. The liquid level of the lubricating oil should be lower than the position of the vent 132 and the air hole 320. When the rotor positioner 200 rotates, the ball group 221 and the circular track R1 can be lubricated in a splashing manner, which is beneficial to the rolling and heat dissipation of the ball group 221.

[0088] The positioning cover body 130 is assembled and fixed to the controller housing 300 via the cover body thread 134, and a sealing ring 133 is provided in the threaded assembly gap between the positioning cover body 130 and the controller housing 300, and a sealing gasket 1128 is provided at the bottom of the mounting groove 1121 in the slide rail to ensure that the controller maintains good sealing performance and prevent lubricating oil from leaking therefrom.

[0089] An observation window 330 and a sealing bolt 340 are provided on the circumferential surface of the controller housing 300. The observation window is used to add lubricating oil and observe the matching clearance between the rotor positioner 200 and the trigger boss mechanism 110, and the openings of the vent 132 and the air vent 320 both have a downward inclination angle to prevent the wall lubricating oil from overflowing when flowing.

[0090] All thread designs and parts that cooperate with threads in this article, in addition to the functions of connection and fixing, also have the function of combining and installing parts so that the motor as a whole can be assembled smoothly.

[0091] In the motor, the relevant structural dimensions of the stator and the rotor can be adjusted as needed to meet the requirements of installation in spaces of different sizes.

[0092] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A motor operation controller, used for forward and reverse control of a motor rotor relative to a motor stator, characterized in that: It includes a winding current trigger and a rotor positioner, wherein the winding current trigger includes: The trigger boss mechanism comprises a trigger boss which is aligned with the stator winding in spatial position, and the trigger boss has a compressed state and a free state: in the free state, the trigger boss is in a raised state by an elastic structure, and in the compressed state, the elastic structure is compressed to make the trigger boss in a fallen state; the trigger boss controls the stator winding to be energized or deenergized in the raised state and the fallen state by setting an electrical contact; A concave slide rail, wherein the concave slide rail is filled between the trigger bosses that are intermittently arranged in space, and together with the trigger bosses, forms a circular track; The rotor positioner has a positioner body rigidly connected to the motor rotor and rotating synchronously, and also includes: The ball mechanism has a ball group that is aligned with the salient pole of the motor rotor in spatial position, the ball group is assembled in a countersunk hole opened in the positioner body through a ball bracket, and a compression spring that pushes up the ball bracket is arranged in the countersunk hole so that the ball group always protrudes from the end face of the positioner body; The annular track formed by the concave slide rail and the trigger boss is configured to fit the rotation path of the ball group and match the contour of the ball group to maintain smoothness when the rotor positioner rotates; When the ball group moves to the trigger boss, the trigger boss is in the compressed state, and when the ball group leaves the trigger boss, the trigger boss is in the free state; Furthermore, when the ball assembly moves to any position, the electrical contacts provided on the trigger boss always energize only the stator winding that can continue to magnetically traction the motor rotor to rotate.

2. The motor operation controller according to claim 1, characterized in that: It also includes a controller housing, the winding current trigger also includes a positioning cover body, the trigger boss mechanism and the concave slide rail are assembled on the positioning cover body, the positioning cover body and the controller housing are threadedly assembled, the rotor positioner is arranged in a cavity between the positioning cover body and the controller housing, and the transmission shaft of the motor rotor passes through the controller housing into the cavity and is threadedly connected to the positioner body.

3. The motor operation controller according to claim 2, characterized in that: The rotor positioner also includes a locking bolt for locking the transmission shaft and the positioner body. After being locked, the locking bolt aligns the salient pole of the motor rotor with the ball group in spatial position. The locking bolt also has a single-sided convex edge. The controller housing is provided with a controller bearing at the point where the transmission shaft passes through. The single-sided convex edge of the locking bolt is used to cooperate and tighten the inner ring of the controller bearing.

4. The motor operation controller according to claim 2, characterized in that: A positioning boss corresponding to the trigger boss is arranged at the edge of the positioning cover body, and the positioning boss is used to make the positioning boss correspond and align with the stator winding when installed in the motor housing.

5. The motor operation controller according to claim 1, characterized in that: The positioner body is evenly provided with ventilation windows, the positioning cover is provided with ventilation ports, and the controller housing is provided with ventilation holes. The ventilation ports, ventilation holes and ventilation windows are arranged in a circular array along the axial direction.

6. The motor operation controller according to claim 1, characterized in that: The elastic structure includes a mounting groove in the slide rail, a spring-loaded spring, and a pair of insulating transmission rods. The trigger boss is slidably assembled in the mounting groove in the slide rail through the pair of insulating transmission rods. The spring-loaded spring is sleeved outside the insulating transmission rods and tightly assembled between the mounting groove in the slide rail and the trigger boss. The bottom of one of the insulating transmission rods corresponds to two normally open elastic contact points through a normally open connection fork, and the bottom of the other insulating transmission rod is provided with a normally closed connection fork and two normally closed elastic contact points connected by the normally closed connection fork; When the trigger boss is pressed down and in a falling state, the normally open elastic contact point contacts the normally open connection fork to be connected, and the normally closed connection fork is pushed away by the insulating transmission rod and disconnected from the normally closed elastic contact point; The two normally open elastic contact points and the two normally closed elastic contact points are used to control the on and off of the stator winding.

7. The motor operation controller according to claim 1, characterized in that: A sealing ring is provided in the threaded assembly gap between the positioning cover and the controller housing, a sealing gasket is provided at the bottom of the mounting groove in the slide rail, an observation window and a sealing bolt are provided on the circumferential surface of the controller housing, and the openings of the vent and the air hole both have a downward inclination angle.

8. The motor operation controller according to claim 1, characterized in that: The stator windings of the motor stator are evenly arranged in six groups, and the salient poles of the motor rotor are evenly arranged in four groups.

9. The motor operation controller according to claim 7, characterized in that: The controller housing is filled with lubricating oil whose liquid level is lower than the vent and the air hole.

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