Phase change point position regulation type permanent magnet synchronous motor

Abstract

The invention relates to the technical field of permanent magnet synchronous motors, and discloses a commutation point position regulation type permanent magnet synchronous motor, which comprises a motor main body and further comprises a box body, the box body is arranged at the top of the motor main body, and a plurality of binding posts are arranged in the box body and used for providing a commutation wiring space of the motor main body; the position adjusting assembly is arranged in the box body, the position adjusting assembly comprises a rotating assembly, a connecting assembly and a contact assembly, and the rotating assembly rotates to control the contact assembly to perform phase switching regulation and control on the binding post and is used for regulating and controlling phase commutation of the motor main body; and the inner sleeve is arranged in the box body and is used for preventing the motor main body from vibrating. The contact sleeve is of a two-half-opening arc-shaped structure, so that the conductive column can be separated from the contact sleeve when rotating, and meanwhile, the arc-shaped arrangement of the contact sleeve reduces and avoids friction generated in the commutation process of the conductive column and avoids abrasion of the conductive column, so that the capacitor is protected, and the safety of an electrical line is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of permanent magnet synchronous motors, and in particular to a commutation point position control type permanent magnet synchronous motor. Background Art

[0002] At present, hybrid vehicles and electric vehicles are becoming more and more popular. Electric motors are needed in hybrid or electric vehicles. The earliest one was a DC motor system driven by a single motor, but the DC motor system has the disadvantages of large mass and low efficiency, and requires regular maintenance, and the failure rate is also relatively high. Therefore, with the development of electronic power technology and digital technology, people began to use asynchronous motors, permanent magnet synchronous motors or switched reluctance motors. Among them, permanent magnet synchronous motors have good reliability and are widely used.

[0003] The Chinese patent application number CN202311011985.3 discloses a phase-changing switch for large generators, including a static contact, a moving contact and a locking mechanism. The static contact and the moving contact are both arranged in a cylindrical shape. A positioning plug is fixed in the static contact, and a positioner is arranged in the moving contact. A positioning hole is opened in the middle of the positioner. A plurality of connecting rods are arranged on the periphery of the positioner. One end of the connecting rod extends into the positioning hole, and the other end passes through the moving contact and extends to the outside. The connecting rods extending to the outside are all provided with locking mechanisms. The present invention cooperates with the sliding trolley, the positioning plug, the positioning hole, the positioner, the connecting rod, the reset spring, the pressure plate, the locking contact, the locking hole, the locking mechanism and other mechanisms, so that when the locking contact is inserted, the reset spring at this position is evenly stressed to avoid eccentricity problems, and the locking mechanism ensures that the moving contact and the static contact are tightly connected. However, in the process of phase change, the connector will generate friction when the phase change occurs, causing the joint to wear, and it is easy to cause problems such as damage to the starting capacitor and electrical circuit failure.

[0004] At present, during the use or detection of permanent magnet synchronous motors, users need to change the phases of the motors, and the function of phase change is to make the motor rotate forward and reverse. The current traditional method is to directly remove the wiring terminals and replace the positions of three phases or two phases. The traditional method of manually removing the control switching points is inefficient and the operation process is too cumbersome. At the same time, during the wiring process, the stability of the wiring switching points must be ensured. If they are loose, they may easily cause the switching wiring points to fall off and cause certain safety accidents if used for too long. When the connector is changing phases, friction will occur, causing the connector to wear, which may easily cause problems such as damage to the starting capacitor and electrical circuit failure.

[0005] Therefore, in order to solve the above problems, it is necessary to provide a commutation point position controlled permanent magnet synchronous motor. Summary of the invention

[0006] The object of the present invention is to provide a commutation point position control type permanent magnet synchronous motor to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: a commutation point position control type permanent magnet synchronous motor, comprising a motor body, and further comprising:

[0008] A box body, wherein the box body is arranged on the top of the motor body, and a plurality of terminals are arranged in the box body for providing a phase-changing wiring space for the motor body;

[0009] A position adjustment component, which is arranged inside the box body and includes a rotating component, a connecting component and a contact component. The rotating component rotates to control the contact component to perform phase switching regulation on the terminal, so as to regulate the phase switching of the motor body;

[0010] The inner sleeve is arranged inside the box body, and the positioning component is located inside the inner sleeve to prevent the motor body from vibrating.

[0011] Preferably, the rotating assembly includes a pressure rod, the bottom of the pressure rod is fixedly connected to a pressing plate, the outer wall of the pressing plate is provided with a rotating sleeve, the outer wall of the rotating sleeve is provided with a first slot and a rotating groove, the interior of the rotating sleeve is slidably connected to an adjusting rod, the outer wall of the adjusting rod is provided with a second slot, and the surface of the rotating sleeve is connected to a connecting strip.

[0012] Preferably, the contact assembly includes a first clamping column, a sliding rod is fixedly connected to the top of the first clamping column, the bottom of the rotating sleeve is fixedly connected to a limit block, the end of the sliding rod away from the first clamping column is slidably connected to the inside of the limit block, a small turntable is inserted into the outer wall of the first clamping column, a large turntable is rotatably connected to the surface of the small turntable, a second clamping column is inserted into the top of the large turntable, a sliding rod is fixedly connected to the top of the second clamping column, and the sliding rod is slidably connected to the bottom of the adjusting rod, two conductive sheets and one conductive sheet are respectively fixedly connected to the inside of the small turntable and the large turntable, and each of the conductive sheets is electrically connected to the terminal.

[0013] Preferably, a conductive column is connected to the bottom of the conductive sheet, a contact sleeve is clamped on the surface of the conductive column, a lead column is connected to the bottom of the contact sleeve, and the lead column is electrically connected to the coil inside the motor body, and two sleeves are slidably connected to the surface of the large turntable, a positioning rod is fixedly connected to the outer wall of the sleeve, and one end of the positioning rod is fixedly connected to the inner wall of the inner sleeve.

[0014] Preferably, a compression spring is connected between the top of the adjusting rod and the bottom of the pressing piece, and the pressing piece is slidably connected inside the first card slot.

[0015] Preferably, the box body comprises a fixed shell, the fixed shell is fixedly connected to the outer wall of the motor body, the top of the fixed shell is connected with a cover body by bolts, and the cover body and the fixed shell are connected to form a spherical structure as a whole.

[0016] Preferably, the inner sleeve comprises a hemispherical sleeve, the bottom of which is fixedly connected to the top of the motor body, a cavity is provided in the hemispherical sleeve, two toggle sleeves are rotatably connected in the cavity, a pull plate is connected to the outer wall of the toggle sleeve, the surface of the pull plate contacts the inner wall of the box body, and the inner sleeve.

[0017] Preferably, a sliding ball is connected to the surface of the hemispherical sleeve, a ball groove is formed on the inner wall of the fixed shell, and the sliding ball is slidably connected inside the ball groove.

[0018] Preferably, the terminal comprises a sleeve column, the interior of the sleeve column is connected with a connecting wire, the bottom of the connecting wire is electrically connected to the conductive column, the outer wall of the sleeve column is connected with a terminal seat, and the outer wall of the terminal seat is fixedly connected to the inner wall of the hemispherical sleeve.

[0019] Preferably, the rotating assembly further comprises a connecting piece, which is a positioning bracket, and the positioning bracket is sleeved on the outer wall of the rotating sleeve, and the surface of the positioning bracket is connected to the wiring seat through a connecting rod.

[0020] Technical effects and advantages of the present invention:

[0021] Compared with the prior art, the present invention provides a commutation point position control type permanent magnet synchronous motor, which has the following beneficial effects:

[0022] 1. The present invention provides a positioning assembly so that when the operator performs phase change, he only needs to control the rotation of the small turntable or the large turntable to rotate and shift the conductive column from the original contact sleeve position to another contact sleeve position to achieve phase change contact at the phase point. At this time, the motor is directly changed, and there is no need for the operator to manually fix the connection and remove the wires, which is convenient for the maintenance of the motor and the use of the motor phase change;

[0023] 2. The present invention provides an internal spherical inner sleeve that can slide and rotate in the box body, thereby realizing internal movable wiring, avoiding excessive tightening of external wiring, which causes the wiring parts to become loose as the motor vibrates for a long time, and eventually causes the commutation wiring points to fall off, thereby improving the stability of the motor commutation and operation from the side;

[0024] 3. The present invention has a contact sleeve with two open arc-shaped halves, so that the conductive column can be separated from the contact sleeve when it rotates. At the same time, the arc-shaped setting of the contact sleeve reduces the friction generated by the conductive column during the phase change process and avoids the wear of the conductive column, thereby protecting the capacitor and improving the safety of the electrical route. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the internal cross-sectional structure of the box body of the present invention;

[0027] Figure 3 It is a schematic diagram of the inner sleeve structure of the present invention;

[0028] Figure 4 It is a schematic diagram of the structure of the rotating assembly of the present invention;

[0029] Figure 5 It is a schematic diagram of the structure of the large turntable of the present invention;

[0030] Figure 6 It is a schematic diagram of the pressure rod structure of the present invention;

[0031] Figure 7 It is a schematic diagram of the cross-sectional structure of the contact assembly of the present invention;

[0032] Figure 8 It is a schematic diagram of the lead column structure of the present invention;

[0033] Fig. 9 It is a schematic diagram of the terminal structure of the present invention.

[0034] In the figure: 1, motor body; 2, box body; 21, cover body; 22, fixed shell; 3, adjustment assembly; 31, rotating assembly; 311, pressure rod; 312, rotating sleeve; 313, pressing piece; 314, first slot; 315, rotating slot; 316, second slot; 317, extrusion spring; 318, connecting strip; 319, adjustment rod; 32, positioning bracket; 33, contact assembly; 331, clamping sleeve; 332, fixed Position rod; 333, large turntable; 334, small turntable; 335, first clamping column; 336, sliding rod; 337, second clamping column; 338, sliding rod; 339, conductive column; 340, contact sleeve; 341, lead column; 342, conductive sheet; 4, terminal post; 41, sleeve post; 42, connecting wire; 5, inner sleeve; 51, hemispherical sleeve; 52, toggle sleeve; 53, pull plate; 6, terminal block; 7, sliding ball; 8, ball groove. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Embodiment 1

[0037] The traditional method of manually removing the control commutation points is inefficient and the operation process is too cumbersome. At the same time, during the wiring process, the stability of the wiring commutation points must be ensured. If they become loose, they can easily fall off and cause certain safety accidents if used for too long.

[0038] like Figure 1 , Figure 2 As shown, a commutation point position control type permanent magnet synchronous motor includes a motor body 1 and a box body 2. The box body 2 is arranged on the top of the motor body 1. A plurality of terminals 4 are arranged in the box body 2. The terminal posts 4 mainly function to connect the phase wires. The external wires only need to be wound and fixed on the terminal posts 4. Each terminal post 4 has a corresponding mark, such as U, V, W, U1, V1, and W1. The wiring personnel connect the wires to the terminal posts 4 according to the marks to provide a commutation wiring space for the motor body 1. The box body 2 includes a fixed shell 22, which is fixedly connected to the outer wall of the motor body 1. The top of the fixed shell 22 is connected with a cover body 21 by bolts, and the cover body 21 and the fixed shell 22 are connected to form a spherical structure as a whole. Because of the spherical shape structure, the outer surface can be made smoother, and a good avoidance effect can be achieved in dealing with some bump areas, and it will also facilitate the fixed connection of the entire box body 2.

[0039] like Figures 4 to 9 As shown, the terminal 4 includes a sleeve 41, the interior of the sleeve 41 is connected with a connecting wire 42, the bottom of the connecting wire 42 is electrically connected to the conductive column 339, the outer wall of the sleeve 41 is connected to the terminal seat 6, and the outer wall of the terminal seat 6 is fixedly connected to the inner wall of the hemispherical sleeve 51.

[0040] The connecting wire 42 is provided to provide phase conversion. Because the conductive column 339 will rotate during the phase conversion process, the connecting wire 42 will be stretched and moved to another phase. First, the external wire is connected to the sleeve column 41, through the connecting wire 42 and the conductive column 339, and finally through the contact sleeve 340 and the lead column 341, so as to form a circuit to introduce into the interior of the motor.

[0041] like Figures 4 to 7As shown, further, the position adjustment component 3 is arranged inside the box body 2, and the position adjustment component 3 includes a rotating component 31, a connecting component and a contact component 33. The rotating component 31 rotates to control the contact component 33 to adjust the phase switching of the terminal 4, which is used to adjust the phase change of the motor body 1. The rotating component 31 includes a pressure rod 311, and the bottom of the pressure rod 311 is fixedly connected with a pressing piece 313, and the outer wall of the pressing piece 313 is sleeved with a rotating sleeve 312. The outer wall of the rotating sleeve 312 is provided with a first slot 314 and a rotating slot 315. The pressing piece 313 is slidably connected inside the first slot 314 and the rotating slot 315. Considering the control of switching of multiple phases, two slots are provided, and the rotation of the slots at different positions is utilized. The adjusting rod 319 is provided with a second slot 316 on the outer wall of the adjusting rod 319. The height of the second slot 316 is lower than that of the rotating sleeve 312. The pressing piece 313 is slidably connected inside the second slot 316. In the initial state, the first slot 314 and the second slot 316 are connected. The surface of the rotating sleeve 312 is connected with a connecting strip 318. The connecting strip 318 plays a connecting role. Because the angle of the rotating groove 315 is too large, the upper half of the rotating sleeve 312 and the main body are separated. Therefore, the connecting strip 318 is used to connect and position them. At this time, the rotation of the pressing piece 313 will drive the rotation of the rotating sleeve 312.

[0042] like Figures 4 to 7 As shown, an extrusion spring 317 is connected between the top of the adjusting rod 319 and the bottom of the pressing plate 313. The pressing plate 313 is slidably connected to the inside of the first slot 314. The extrusion spring 317 mainly plays a role in resetting and lifting the pressing plate 313. The initial state of the extrusion spring 317 is in an extended state. The extrusion spring 317 supports the pressing plate 313 at one end of the first slot 314 close to the pressure rod 311.

[0043] By controlling the rotation of the pressure rod 311, because the bottom of the pressure rod 311 is connected to the pressing plate 313, when the pressure rod 311 rotates, the pressing plate 313 will drive the rotation of the rotating sleeve 312. Since the height of the second slot 316 is lower than the height of the rotating sleeve 312, the rotation of the pressure rod 311 drives the rotating sleeve 312 to rotate through the pressing plate 313, and the rotation of the rotating sleeve 312 is used to control the rotation of the small turntable 334 to realize the regulation and switching of the W phase and the V phase, and the pressure rod 311 is controlled. 311 moves downward, so that the pressing plate 313 slides to the position of the rotating groove 315 through the first slot 314, and then rotates. Because the rotating groove 315 gives way, the rotating sleeve 312 will not rotate at this time. The pressing plate 313 rotates inside the second slot 316 to drive the rotation of the adjusting rod 319, and then the sliding rod 338 and the sliding pull rod 336 have the same movement principle to drive the large turntable 333 to rotate. The large turntable 333 is used to control the switching of the U and W or V phases.

[0044] like Figures 4 to 8As shown, the contact assembly 33 includes a first clamping column 335, the top of the first clamping column 335 is fixedly connected to a sliding rod 336, the bottom of the rotating sleeve 312 is fixedly connected to a limiting block, the end of the sliding rod 336 away from the first clamping column 335 is slidably connected to the inside of the limiting block, and the end that passes through the limiting block is fixed with a first anti-detachment block to prevent the first clamping column 335 from detaching from the limiting block, the outer wall of the first clamping column 335 is plugged with a small turntable 334, the surface of the small turntable 334 is rotatably connected to the large turntable 333, the small turntable 334 is located inside the large turntable 333, the top of the large turntable 333 is plugged with a second clamping column 337, and the second clamping column 33 The top of the small turntable 334 is fixedly connected with a slide bar 338, and the slide bar 338 is slidably connected to the bottom of the adjusting rod 319, and the slide bar 338 passes through the adjusting rod 319. One end is fixed with a second anti-falling block to prevent the slide bar 338 from detaching from the adjusting rod 319, and the inside of the small turntable 334 and the large turntable 333 are respectively fixedly connected with two conductive sheets 342 and a conductive sheet 342, the small turntable 334 has two conductive sheets 342, and the large turntable 333 has one conductive sheet 342, one of the conductive sheets 342 on the small turntable 334 is located at the center of the large turntable 333, and the other conductive sheet 342 on the small turntable 334 and one conductive sheet on the large turntable 333 The conductive sheets 342 are symmetrically arranged on the large rotating disk 333, and each conductive sheet 342 is electrically connected to the terminal 4. The bottom of the conductive sheet 342 is connected to a conductive column 339, and the surface of the conductive column 339 is clamped with a contact sleeve 340. The contact sleeve 340 is located at the bottom of the large rotating disk 333. The contact sleeve 340 presents a structure with two half openings, so that when the conductive column 339 rotates, it can be separated from the contact sleeve 340, and another group of conductive columns 339 can also enter the interior of the contact sleeve 340 from the other opening direction. The bottom of the contact sleeve 340 is connected to a lead column 341. The lead column 341 is electrically connected to the coil inside the motor body 1, and the lead The wire post 341 acts by connecting the lines, because the line windings inside the motor need to be led out and connected to the lead post 341. Two sleeves 331 are slidably connected to the surface of the large turntable 333. The outer wall of the sleeve 331 is fixedly connected to a positioning rod 332. One end of the positioning rod 332 is fixedly connected to the inner wall of the inner sleeve 5. The role of the sleeve 331 is to limit the orientation of the large turntable 333. Because the large turntable 333 needs to rotate, and when rotating, the relative position cannot be misaligned, so the sleeve 331 can limit the rotation of the large turntable 333, limiting its movement in the up, down, front and back directions, and can only rotate.

[0045] Because the entire rotating sleeve 312 is not at the center position of the large turntable 333 or the small turntable 334 and is in an eccentric state, when the rotating sleeve 312 rotates at this time, it drives the sliding rod 336 to rotate and slide on the rotating sleeve 312. Then the sliding rod 336 rotates through the first clamping column 335 to drive the small turntable 334 to rotate on the large turntable 333. The first clamping column 335 will gradually approach the rotating sleeve 312. At the same time, the sliding rod 336 slides in the limit block on the rotating sleeve 312. The rotation principle of the grinding disc is utilized, so that the rotation of the small turntable 334 will drive the conductive column 339 connected to the bottom to slide out from the position of the contact sleeve 340. When it rotates 180 degrees, the two conductive columns 339 on the small turntable 334 will be swapped, thereby forming a phase control conversion.

[0046] like Figures 4 to 7 As shown, the rotating assembly 31 also includes a connecting piece, which is a positioning bracket 32. The positioning bracket 32 ​​is sleeved on the outer wall of the rotating sleeve 312. The surface of the positioning bracket 32 ​​is connected to the terminal block 6 through a connecting rod. The positioning bracket 32 ​​mainly serves to connect and limit the rotating sleeve 312. Because the rotating sleeve 312 needs to rotate, the positioning bracket 32 ​​can connect and limit it at this time, ensuring that the relative position of the rotating sleeve 312 will not move.

[0047] First, when the entire motor is in use or under maintenance, the box body 2 is opened to expose the inner sleeve 5, and then the two toggle sleeves 52 are opened to both sides. The two toggle sleeves 52 are in a mutually engaged state. After being opened, the two toggle sleeves 52 enter the interior of the hemispherical sleeve 51 to expose the internal phase wiring parts. At this time, the operator connects the wiring of the corresponding phase to the terminal 4, and each terminal 4 has a corresponding mark, such as U, V, W, U1, V1, and W1. The wiring personnel connect the wiring to the terminal 4 according to the mark. If phase change regulation is required, the operator is required to control the rotation of the pressure rod 311, because the bottom of the pressure rod 311 is connected to the pressing plate 313. When the pressure rod 311 rotates to drive the rotation of the pressing plate 313, the pressing plate 313 will drive the rotation of the rotating sleeve 312, and the rotating sleeve 312 will drive the sliding pull rod 336 to rotate. The rotating sleeve 312 is not at the center position of the large turntable 333 or the small turntable 334, and is in an eccentric state. Therefore, when the rotating sleeve 312 rotates, the sliding pull rod 336 is driven to rotate and the limit block on the rotating sleeve 312 slides. Then the sliding pull rod 336 rotates through the first clamping column 335 to drive the small turntable 334 to rotate inside the large turntable 333. The rotation of the small turntable 334 will drive the conductive column 339 connected to the bottom to slide out from the position of the contact sleeve 340. When it rotates 180 degrees, the two conductive columns 339 on the small turntable 334 will be swapped, thereby forming a phase control conversion, and the small turntable 334 is in the W phase and the V phase, and the terminal 4 on the W phase will be connected to the contact sleeve 340 on the V phase through the connecting line 42 and the conductive column 339, and the terminal 4 on the V phase will contact and electrically connect with the contact sleeve 340 on the W phase through the connecting line 42.

[0048] If you want to control the conversion regulation on the U phase at this time, you need to control the pressure rod 311 to move downward, so that the pressure plate 313 slides to the position of the rotating groove 315 through the first slot 314, and then rotates. Because the rotating groove 315 gives way, the rotating sleeve 312 will not rotate at this time. The pressure plate 313 is rotated on the second slot 316 to drive the rotation of the adjustment rod 319, thereby making the sliding rod 338 and the sliding pull rod 336 follow the same movement principle. The sliding rod 338 will also slide horizontally on the adjustment rod 319 during the rotation process. Because it is in an eccentric state, it drives the large turntable 333 to rotate on the sleeve 331. After rotating 180 degrees, the W phase will be converted and regulated with the U phase in the initial position. Therefore, the three phases can be appropriately switched and regulated according to actual needs, and the entire box body 2 is in use when the motor is used.

[0049] By setting the adjustment component 3, the operator only needs to control the rotation of the small turntable 334 or the large turntable 333 when performing phase change, and rotate and shift the conductive column 339 from the original contact sleeve 340 position to another contact sleeve 340 position to achieve phase point phase change contact. At this time, the motor is directly changed phase without the operator manually fixing the connection and removing the wires, which facilitates the maintenance of the motor and the use of the motor phase change.

[0050] Embodiment 2

[0051] Based on the above embodiment, the motor is prone to friction during the commutation process. The conductive column 339 of the connector will cause wear of the connector, which may cause damage to the starting capacitor, electrical circuit failure, and other problems.

[0052] like Figures 4 to 7 As shown, the surface of the conductive column 339 is clamped with a contact sleeve 340, and the contact sleeve 340 presents a structure with two open arc halves, so that the conductive column 339 can be detached from the contact sleeve 340 when it rotates. The contact sleeve 340 is located at the bottom of the large turntable 333, and the conductive column 339 does not contact any object during the rotation. At the same time, the arc setting of the contact sleeve 340 reduces the friction generated by the conductive column 339 during the phase change process and avoids the wear of the conductive column 339, thereby protecting the capacitor and improving the safety of the electrical route.

[0053] like Figure 2 , Figure 3 As shown, the box body 2 is movably connected to an inner sleeve 5, and the positioning assembly 3 is located inside the inner sleeve 5. The inner sleeve 5 includes a hemispherical sleeve 51, the bottom of the hemispherical sleeve 51 is fixedly connected to the top of the motor body 1, a cavity is provided in the hemispherical sleeve 51, and two toggle sleeves 52 are rotatably connected in the cavity, and the outer wall of the toggle sleeve 52 is connected to a pull plate 53.

[0054] By opening the two toggle sleeves 52, the two toggle sleeves 52 are in a mutually engaged state. After being opened, the two toggle sleeves 52 enter the interior of the hemispherical sleeve 51 to expose the internal phase wiring parts. Through the two-layer protection, foreign dust or rainwater can be prevented from penetrating into the interior of the inner sleeve 5 to cause short circuit or corrosion, thereby affecting the normal operation of the motor. The two-half spherical opening is more convenient for operators to use. The surface of the hemispherical sleeve 51 is connected with a sliding ball 7, and the inner wall of the fixed shell 22 is provided with a ball groove 8. The sliding ball 7 is slidably connected to the inside of the ball groove 8. When the entire box body 2 is in use, if there is vibration, it will drive the inner sleeve 5 to swing left and right inside, reducing the vibration force transmitted to the terminal 4, avoiding the loosening of the wiring parts caused by vibration under long-term use, and the entire inner sleeve 5 can slide around the ball groove 8 through the sliding ball 7, and the inner sleeve 5 can be rotated as a whole to cope with phase wiring in different directions.

[0055] If vibration occurs, the inner sleeve 5 will be driven to swing left and right inside, reducing the vibration force transmitted to the terminal 4, avoiding the loosening of the connection part caused by vibration after long-term use. The entire inner sleeve 5 can slide around the ball groove 8 through the sliding ball 7, and the inner sleeve 5 can be rotated as a whole to cope with phase connections in different directions.

[0056] By presenting a structure with two open halves of the arc, the conductive column 339 can be detached from the contact sleeve 340 when it rotates. At the same time, the arc setting of the contact sleeve 340 is reduced, thereby avoiding the friction generated by the conductive column 339 during the phase change process and avoiding the conductive column 339 from being worn, thereby protecting the capacitor and improving the safety of the electrical route.

[0057] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A commutation point position control type permanent magnet synchronous motor, comprising a motor body, characterized in that: Also includes: A box body, wherein the box body is arranged on the top of the motor body, and a plurality of terminals are arranged in the box body for providing a phase-changing wiring space for the motor body; A position adjustment component, which is arranged inside the box body and includes a rotating component, a connecting component and a contact component. The rotating component rotates to control the contact component to perform phase switching regulation on the terminal, so as to regulate the phase switching of the motor body; The inner sleeve is arranged inside the box body, and the positioning component is located inside the inner sleeve to prevent the motor body from vibrating.

2. The permanent magnet synchronous motor according to claim 1, characterized in that: The rotating assembly includes a pressure rod, a pressure plate is fixedly connected to the bottom of the pressure rod, a rotating sleeve is provided on the outer wall of the pressing plate, a first slot and a rotating slot are provided on the outer wall of the rotating sleeve, an adjusting rod is slidably connected to the inside of the rotating sleeve, a second slot is provided on the outer wall of the adjusting rod, and a connecting strip is connected to the surface of the rotating sleeve.

3. The permanent magnet synchronous motor according to claim 2, characterized in that: The contact assembly includes a first clamping column, a sliding rod is fixedly connected to the top of the first clamping column, the bottom of the rotating sleeve is fixedly connected to a limit block, the end of the sliding rod away from the first clamping column is slidably connected to the inside of the limit block, a small turntable is inserted into the outer wall of the first clamping column, a large turntable is rotatably connected to the surface of the small turntable, a second clamping column is inserted into the top of the large turntable, a sliding rod is fixedly connected to the top of the second clamping column, and the sliding rod is slidably connected to the bottom of the adjusting rod, two conductive sheets and one conductive sheet are fixedly connected to the inside of the small turntable and the large turntable respectively, and each of the conductive sheets is electrically connected to the terminal.

4. The permanent magnet synchronous motor according to claim 3, characterized in that: A conductive column is connected to the bottom of the conductive sheet, a contact sleeve is clamped on the surface of the conductive column, a lead column is connected to the bottom of the contact sleeve, and the lead column is electrically connected to the coil inside the motor body. Two sleeves are slidably connected to the surface of the large turntable, a positioning rod is fixedly connected to the outer wall of the sleeve, and one end of the positioning rod is fixedly connected to the inner wall of the inner sleeve.

5. The permanent magnet synchronous motor according to claim 4, characterized in that: A pressing spring is connected between the top of the adjusting rod and the bottom of the pressing sheet, and the pressing sheet is slidably connected inside the first card slot.

6. The permanent magnet synchronous motor according to claim 1, characterized in that: The box body comprises a fixed shell, the fixed shell is fixedly connected to the outer wall of the motor body, the top of the fixed shell is connected with a cover body by bolts, and the cover body and the fixed shell are connected to form a spherical structure as a whole.

7. The permanent magnet synchronous motor according to claim 1, characterized in that: The inner sleeve includes a hemispherical sleeve, the bottom of which is fixedly connected to the top of the motor body, a cavity is provided in the hemispherical sleeve, two toggle sleeves are rotatably connected in the cavity, a pull plate is connected to the outer wall of the toggle sleeve, the surface of the pull plate contacts the inner wall of the box body, and the inner sleeve.

8. The permanent magnet synchronous motor according to claim 7, characterized in that: The surface of the hemispherical sleeve is connected with a sliding ball, the inner wall of the fixed shell is provided with a ball groove, and the sliding ball is slidably connected inside the ball groove.

9. The permanent magnet synchronous motor according to claim 8, characterized in that: The terminal comprises a sleeve column, the interior of the sleeve column is connected with a connecting wire, the bottom of the connecting wire is electrically connected to the conductive column, the outer wall of the sleeve column is connected with a terminal seat, and the outer wall of the terminal seat is fixedly connected to the inner wall of the hemispherical sleeve.

10. The permanent magnet synchronous motor according to claim 3, characterized in that: The rotating assembly also includes a connecting piece, which is a positioning bracket. The positioning bracket is sleeved on the outer wall of the rotating sleeve, and the surface of the positioning bracket is connected to the wiring seat through a connecting rod.

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