A motor structure

Abstract

The present invention discloses a motor structure, including an upper bracket, the upper bracket having a center hole for a rotor to pass through; a lower bracket, the lower bracket having a center hole for a rotor to pass through; a stator, the lower part of the stator is connected to the lower bracket, the upper part is fixed by the upper bracket, and the center of the stator has a center hole for the rotor to pass through; a rotor, the rotor passes through the lower bracket, the stator, and the upper bracket, and is installed on the upper and lower brackets; the lower bracket, the upper bracket, and the stator have positioning devices. The present invention sets positioning devices on the upper and lower brackets and the stator. When installing, the positioning column is first inserted into the iron core, and the installation position can be accurately found, which greatly improves the installation speed.

Description

Technical Field

[0001] The invention relates to the field of motor manufacturing, and in particular to a motor structure. Background Art

[0002] The main function of the motor is to generate driving torque. As a power source for electrical appliances or various machines, existing small automatic cleaning equipment (such as sweeping robots, vacuum cleaners, mopping machines, etc.) all require motors to provide power sources for suction operations.

[0003] The existing motor is fixed and installed by a bracket. During installation, the bracket needs to be aligned with the connection holes on the stator and bolts need to be inserted for connection. However, it is difficult to align multiple bolt holes at the same time, and the installation process is very cumbersome and inefficient. Summary of the invention

[0004] The purpose of the present invention is to provide a motor structure, which can quickly locate the positions of the bracket and the stator during installation, thereby improving the installation efficiency.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a motor structure, including an upper bracket, the upper bracket is provided with a center hole; a lower bracket, the lower bracket is provided with a center hole for one end of a rotor to pass through; a stator, the stator is located between the upper bracket and the lower bracket, and the center of the stator is provided with a center hole for the rotor to pass through; a rotor, the rotor is located between the upper bracket and the lower bracket; and positioning devices are provided on the lower bracket, the upper bracket and the stator.

[0006] The beneficial effect of adopting the above technical solution is: positioning devices are arranged on the upper and lower brackets and the stator. During installation, the positioning column is first inserted into the iron core, and the installation position can be accurately found, which greatly improves the installation speed.

[0007] The present invention further provides that the positioning device comprises an upper positioning column, a lower positioning column and a positioning hole; the upper bracket has an upper positioning column, the lower bracket has a lower positioning column, the positions of the upper positioning column and the lower positioning column correspond, and the inner core of the stator has positioning holes corresponding to the upper positioning column and the lower positioning column; during installation, the upper positioning column and the lower positioning column are respectively placed in the upper half and the lower half of the same positioning hole of the iron core.

[0008] The beneficial effect of adopting the above technical solution is: a positioning hole is set on the stator, and a corresponding positioning column is set on the motor bracket. During installation, the positioning column is first inserted into the positioning hole, so that the installation position can be accurately found, and the bracket and the rotor are restricted from moving at this position, which greatly improves the installation speed. The upper and lower positioning columns are in the same positioning hole, and the upper bracket, the iron core and the lower bracket can be positioned at one time, and then the upper bracket, the iron core and the lower bracket can be installed at one time, further improving the installation speed.

[0009] The present invention further provides that the upper bracket body is a triangle, and the three corners are upper bracket connection holes; the upper positioning column is located next to the upper bracket connection hole; the lower bracket and the iron core have corresponding connection holes, and the lower positioning column is located next to the lower bracket connection hole.

[0010] The beneficial effects of adopting the above technical solution are: the triangle is adapted to the core structure, which facilitates the fixed connection of the core; during installation, the installation position of the upper bracket and the core can be accurately found through the positioning columns and positioning holes, thereby improving the installation speed.

[0011] The present invention further provides that the iron core includes an annular yoke and a plurality of teeth extending from the yoke toward the axis thereof, the plurality of teeth being evenly distributed along the circumferential direction of the inner ring of the yoke, a pole shoe being formed on one end of the teeth close to the axis, a connecting portion being provided on the outer ring of the yoke, and the positioning holes being provided on the connecting portion; the connecting portion is an ear plate, and there are three of them, which are integrally formed with the yoke and evenly distributed on the outer ring of the yoke, the ear plate being provided with connecting holes, and the positioning holes being located next to the connecting holes.

[0012] The beneficial effects of adopting the above technical solution are: adding ear plates makes it easier to set connection holes and positioning holes, which is beneficial to the installation of the iron core.

[0013] Furthermore, the present invention is provided with a plurality of blades on one end portion of the lower bracket, and an air guide channel is formed between two adjacent blades; the blades are spirally distributed around the central circumference of the lower bracket; the lower bracket is provided with ventilation holes, the ventilation holes are provided with the blades, and the blades extend into the holes; an air guide plate is formed at the end of the blade, and the air guide plate is located inside the lower bracket and extends in the air guiding direction of the blades; the lower bracket is provided with three fixing columns, and the three fixing columns are respectively connected to the three blades.

[0014] The beneficial effects of adopting the above technical solution are: the original separate fixed impeller is eliminated, and the blades of the fixed impeller are integrated on the lower bracket, so that the lower bracket becomes one piece. In the production process, only the mold design and mold opening of the lower bracket are required, which saves the cost of opening a separate mold for the fixed impeller. In addition, the screws required to connect the original fixed impeller and the lower bracket are saved, and the cost is further saved, which greatly reduces the production cost and improves the assembly efficiency to a great extent. It can also make the motor bracket structure more compact, saving material costs and layout space. The wind guide plate further guides the wind to the inside of the bracket, improving the heat dissipation effect of the motor. The three fixing columns on the lower bracket are not evenly distributed on a 360° circumference, but in order to make the three fixing columns connected to the blades respectively, the connected blades are strengthened to further prevent vibration and reduce noise.

[0015] The present invention further includes a waterproof cover, an air guide cover and an impeller; a waterproof cover is provided at one end of the lower bracket, and a central hole is provided in the middle of the waterproof cover for one end of the rotor to pass through; an air guide cover, and the air guide cover is detachably connected to the lower bracket; the impeller is connected to the rotor, and the impeller is located in the space formed by the air guide cover and the waterproof cover; a plurality of protrusions are provided on the waterproof cover, and a slot is formed between two adjacent protrusions; a plurality of blades distributed circumferentially are provided on the rotor, and each blade is connected to the waterproof cover through the slot; the protrusions are distributed circumferentially along the axis of the rotor; the outer periphery of the waterproof cover extends outward by a certain distance to form a water retaining step, and the water retaining step is adapted to the annular groove on the external shell where the motor is located, and when the whole machine is installed, the water retaining step is tightly inserted into the annular groove.

[0016] The beneficial effects of adopting the above technical solution are: the existing rotor fixing plate is improved into a waterproof cover, the waterproof cover as a whole has only one hole in the center for the power supply motor to pass through, the radial size of the waterproof cover is larger than the lower bracket, and during installation, the edge of the waterproof cover is in close contact with the motor housing, isolating the inside of the motor from the outside world, and in a wet environment, the water coming in with the airflow is blocked outside the waterproof cover, which can effectively prevent water from entering the motor, and is suitable for use in both dry and wet environments. The protrusions and slots make installation convenient and quick, avoiding the use of a connection method of opening holes on the waterproof cover. Drilling holes in the waterproof cover requires sealing inside the holes, which not only affects the waterproof effect, but is also very troublesome. The water retaining step prevents water from penetrating from the edge of the waterproof cover and causing damage to the inside of the motor, further improving the waterproof performance of the edge of the waterproof cover.

[0017] The present invention further comprises an inner ring frame and an outer ring frame which are arranged at the bottom of the waterproof cover, the inner diameter of the inner ring frame is larger than the diameter of the center hole, the outer ring frame is located near the edge of the waterproof cover, and the outer ring frame is provided with connecting holes for installation; the inner ring frame and the outer ring frame are connected by a plurality of ribs; the rotor has a shaft sleeve which is clamped in the inner ring frame, and there is a waterproof gasket between the shaft sleeve and the inner ring frame.

[0018] The beneficial effect of adopting the above technical solution is that the inner and outer ring frames play a good supporting and fixing role on the waterproof cover. On the one hand, the rib plate plays a role in connecting and reinforcing the inner and outer rings of the lower bracket, and on the other hand, it disperses the force above the lower bracket to avoid the force being concentrated on the inner and outer ring frames. It prevents water from leaking into the motor from the center hole of the waterproof cover, further improving the waterproof performance.

[0019] According to the present invention, a circle of step grooves is arranged outside the center hole, the inner circle diameter of the step grooves is smaller than the hole diameter in the middle of the impeller, and the outer circle diameter of the step grooves is larger than the hole diameter in the middle of the impeller.

[0020] The beneficial effect of adopting the above technical solution is that during assembly, the step groove on the waterproof cover matches the hole of the impeller, the inner circle of the step groove is located in the hole of the impeller, and the outer circle is located outside the hole of the impeller, thereby sealing the center hole of the impeller and improving waterproofness.

[0021] The present invention further includes an annular frame, on which at least one wire clamp is arranged, and a wire clamp groove for constraining the movement of the winding wire is provided in the wire clamp; the wire clamp groove is connected from top to bottom, with one side open on four sides and the other three sides closed; a cover that can be opened one-way inward at the open end of the wire clamp groove is provided; one side of the cover is hinged at the opening of the wire clamp groove, and a reset spring that applies force to the outside of the opening of the wire clamp groove is provided at the hinge; a groove is formed on the edge of the other side of the cover, which is opposite to the baffle provided on the open end of the wire clamp groove; a step is formed upward on the outer edge of the outer ring of the annular frame, and the wire clamp is integrally formed with the annular frame on the step.

[0022] The beneficial effects of adopting the above technical solution are: After a wire is wound, it is placed in the wire clamp. Since the diameter of the wire clamping groove is smaller than the diameter of the winding, the winding is squeezed and clamped inside the wire clamp. There is no need to disconnect the plug-in, and it plays a clamping and fixing role, and it is not easy to detach the soldering point and loosen the wire. The wire clamping groove can clamp the winding, but in order to prevent the winding from loosening from the opening end of the wire clamp during long-term use, a cover that only opens inward is provided at the opening end of the wire clamping groove, and the winding cannot squeeze the cover from the inside of the groove to the outside. There is a baffle at the opening of the wire clamping groove. Under the action of the reset spring, the cover is always restricted on the baffle to ensure that the winding cannot squeeze the cover from the inside of the groove to the outside.

[0023] According to the present invention, the annular frame has a plurality of teeth extending toward its axis, the plurality of teeth are evenly distributed along the circumferential direction of the inner ring of the annular frame, a center hole for the rotor to pass through is formed at one end of the tooth close to the axis; a vertical plate is provided at the end of each tooth, and the vertical plate surrounds the outer circumference of the center hole; the number of the teeth is 3, and the center angle between two adjacent teeth is 120°; the number of the wire clamps is 3, and the center angle between two adjacent wire clamps is 120°; the annular frame has a plurality of arc-shaped notches on its outer circumference; the number of the arc-shaped notches is 3, and the center angle between two adjacent arc-shaped notches is 120°.

[0024] The beneficial effect of adopting the above technical solution is that the annular frame as a whole matches the stator core structure, and the stator should be installed better. A connecting part for connecting the upper and lower structures is provided on the outer periphery of the core structure, and for this purpose, a corresponding arc-shaped notch is provided to avoid the connecting part. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0026] Figure 2This is the installation diagram of the present invention:

[0027] Figure 3 This is a front view of the upper bracket of the present invention;

[0028] Figure 4 This is a back view of the upper bracket of the present invention;

[0029] Figure 5 This is a view of the lower bracket of the present invention;

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

[0031] Figure 7 Schematic diagram of the internal structure of the lower bracket of the present invention

[0032] Figure 8 This is a schematic diagram of the lower support structure of the present invention;

[0033] Fig. 9 This is a schematic diagram of the installation of the upper bracket of the present invention;

[0034] Fig.10 It is a schematic diagram of the decomposition structure of the present invention;

[0035] Fig.11 This is a schematic diagram of the front structure of the waterproof cover of the present invention;

[0036] Fig.12 This is a schematic diagram of the back structure of the waterproof cover of the present invention;

[0037] Fig.13 Schematic diagram of the motor shaft of the present invention

[0038] Fig.14 It is a schematic diagram of another embodiment of the waterproof cover of the present invention;

[0039] Fig.15 It is a structural schematic diagram of the annular frame of the present invention;

[0040] Fig.16 This is a schematic diagram of the installation position of the ring frame of the present invention;

[0041] Fig.17 This is a schematic diagram of the structure of the baffle plate of the wire clamp of the present invention;

[0042] Fig.18 This is a schematic diagram of the clamp baffle of the present invention in an open state; DETAILED DESCRIPTION

[0043] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] An embodiment of the present invention: Figure 1 As shown, a motor structure includes an upper bracket 11, the upper bracket 11 is provided with a center hole; a lower bracket 8, the lower bracket is provided with a center hole for one end of the rotor to pass through; a stator 15, the stator is located between the upper bracket and the lower bracket, and the center of the stator is provided with a center hole for the rotor to pass through; a rotor, the rotor is located between the upper bracket and the lower bracket; and positioning devices are provided on the lower bracket, the upper bracket and the stator.

[0046] The beneficial effect of adopting the above technical solution is: positioning devices are arranged on the upper and lower brackets and the stator. During installation, the positioning column is first inserted into the iron core, and the installation position can be accurately found, which greatly improves the installation speed.

[0047] In other specific embodiments of the present invention, the rest is the same as the above embodiment, except that, Figure 1 and Figure 2 As shown, the positioning device includes an upper positioning column 7, a lower positioning column 12 and a positioning hole 4; the upper bracket 11 has an upper positioning column 7, the lower bracket 8 has a lower positioning column 12, the positions of the upper positioning column 7 and the lower positioning column 12 correspond, and the inner core of the stator 15 has a positioning hole 4 corresponding to the upper positioning column 7 and the lower positioning column 12; during installation, the upper positioning column 7 and the lower positioning column 12 are respectively placed in the upper and lower parts of the same positioning hole 4 of the iron core,

[0048] The beneficial effect of adopting the above technical solution is: a positioning hole is set on the stator, and a corresponding positioning column is set on the motor bracket. During installation, the positioning column is first inserted into the positioning hole, so that the installation position can be accurately found, and the bracket and the rotor are restricted from moving at this position, which greatly improves the installation speed. The upper and lower positioning columns are in the same positioning hole, and the upper bracket, the iron core and the lower bracket can be positioned at one time, and then the upper bracket, the iron core and the lower bracket can be installed at one time, further improving the installation speed.

[0049] In other specific embodiments of the present invention, the rest is the same as the above embodiment, except that, Figures 2 to 5As shown, the main body of the upper bracket 11 is a triangle, and the three corners are respectively the upper bracket connecting holes 9; the upper positioning column is located next to the upper bracket connecting hole 9; the lower bracket 8 and the iron core have corresponding connecting holes 2, and the lower positioning column 12 is located next to the lower bracket connecting hole 10.

[0050] The beneficial effects of adopting the above technical solution are: the triangle is adapted to the core structure, which facilitates the fixed connection of the core; during installation, the installation position of the upper bracket and the core can be accurately found through the positioning columns and positioning holes, thereby improving the installation speed.

[0051] In other specific embodiments of the present invention, the rest is the same as the above embodiment, except that, Figure 6 As shown, the iron core includes an annular yoke 1 and a plurality of teeth 5 extending from the yoke 1 toward its axis, the plurality of teeth 5 are evenly distributed along the circumferential direction of the inner ring of the yoke 1, a pole shoe 6 is formed at one end of the teeth close to the axis, a connecting portion is provided on the outer ring of the yoke 1, and the positioning hole 4 is provided on the connecting portion; the connecting portion is an ear plate 3, there are three of them, which are integrally formed with the yoke 1 and evenly distributed on the outer ring of the yoke 1, the ear plate 3 is provided with a connecting hole 2, and the positioning hole 4 is located next to the connecting hole 2.

[0052] The beneficial effects of adopting the above technical solution are: adding ear plates makes it easier to set connection holes and positioning holes, which is beneficial to the installation of the iron core.

[0053] In other specific embodiments of the present invention, the rest is the same as the above embodiment, except that, Figures 7 to 9 As shown, a plurality of blades 104 are provided on one end of the lower bracket 8, and an air guide channel is formed between two adjacent blades 104; the blades 104 are spirally distributed around the central hole 106 of the lower bracket 8; a ventilation hole 109 is opened on the lower bracket 8, and the blades 104 are provided on the ventilation hole 109, and the blades 104 extend into the hole; a wind guide plate 105 is formed at the end of the blade 104, and the wind guide plate 105 is located inside the lower bracket 8 and extends in the direction of the blade wind guide; there are three fixing columns 101 on the lower bracket 8, and the three fixing columns are respectively connected to the three blades 104. A reinforcing rib 107 is connected between the lower bracket connection hole 10 and the central hole 106.

[0054] The beneficial effects of adopting the above technical solution are: the original separate fixed impeller is eliminated, and the blades of the fixed impeller are integrated on the lower bracket, so that the lower bracket becomes one piece. In the production process, only the mold design and mold opening of the lower bracket are required, which saves the cost of opening a separate mold for the fixed impeller. In addition, the screws required to connect the original fixed impeller and the lower bracket are saved, and the cost is further saved, which greatly reduces the production cost and improves the assembly efficiency to a great extent. It can also make the motor bracket structure more compact, saving material costs and layout space. The wind guide plate further guides the wind to the inside of the bracket, improving the heat dissipation effect of the motor. The three fixing columns on the lower bracket are not evenly distributed on a 360° circumference, but in order to make the three fixing columns connected to the blades respectively, the connected blades are strengthened to further prevent vibration and reduce noise.

[0055] In other specific embodiments of the present invention, the rest is the same as the above embodiment, except that, Figures 10 to 13 As shown, it also includes a waterproof cover 203, an air guide cover 216 and an impeller 202; a waterproof cover 203 is provided at one end of the lower bracket 8, and a central hole 106 is provided in the middle of the waterproof cover 203 for allowing one end of the rotor to pass through; an air guide cover 216, and the air guide cover 216 is detachably connected to the lower bracket 8; the impeller 202 is connected to the rotor, and the impeller 202 is in the space formed by the air guide cover 216 and the waterproof cover 203; a plurality of protrusions are provided on the waterproof cover 203, and a slot 208 is formed between two adjacent protrusions, and a plurality of blades distributed circumferentially are provided on the rotor, and each blade is connected to the waterproof cover 203 through the slot 208; the protrusions are distributed circumferentially along the axis of the rotor; the outer periphery of the waterproof cover 203 extends outward by a certain distance to form a water retaining step 209, and the water retaining step 209 It is matched with the annular groove on the outer shell where the motor is located. When the whole machine is installed, the water retaining step 209 is tightly inserted into the annular groove.

[0056] The beneficial effects of adopting the above technical solution are: the existing rotor fixing plate is improved into a waterproof cover, the waterproof cover as a whole has only one hole in the center for the power supply motor to pass through, the radial size of the waterproof cover is larger than the lower bracket, and during installation, the edge of the waterproof cover is in close contact with the motor housing, isolating the inside of the motor from the outside world, and in a wet environment, the water coming in with the airflow is blocked outside the waterproof cover, which can effectively prevent water from entering the motor, and is suitable for use in both dry and wet environments. The protrusions and slots make installation convenient and quick, avoiding the use of a connection method of opening holes on the waterproof cover. Drilling holes in the waterproof cover requires sealing inside the holes, which not only affects the waterproof effect, but is also very troublesome. The water retaining step prevents water from penetrating from the edge of the waterproof cover and causing damage to the inside of the motor, further improving the waterproof performance of the edge of the waterproof cover.

[0057] In other specific embodiments of the present invention, the rest is the same as the above embodiment, except that, Figures 10 to 13 As shown, the lower bracket 8 includes an inner ring frame 210 and an outer ring frame 211 arranged at the bottom of the waterproof cover 203, the inner diameter of the inner ring frame 210 is larger than the diameter of the center hole 106, the outer ring frame 211 is located near the edge of the waterproof cover 203, and the outer ring frame 211 is provided with a connecting hole for installation; a plurality of ribs 212 are connected between the inner ring frame 210 and the outer ring frame 211; a shaft sleeve 214 is provided on the motor shaft 205 of the rotor, the shaft sleeve 214 is stuck in the inner ring frame 210, and a waterproof gasket 213 is provided between the shaft sleeve 214 and the inner ring frame 210.

[0058] The beneficial effect of adopting the above technical solution is that the inner and outer ring frames play a good supporting and fixing role on the waterproof cover. On the one hand, the rib plate plays a role in connecting and reinforcing the inner and outer rings of the lower bracket, and on the other hand, it disperses the force above the lower bracket to avoid the force being concentrated on the inner and outer ring frames. It prevents water from leaking into the motor from the center hole of the waterproof cover, further improving the waterproof performance.

[0059] In other specific embodiments of the present invention, the rest is the same as the above embodiment, except that, Fig.14 As shown, a circle of step groove 215 is provided outside the center hole, the inner circle diameter of the step groove 215 is smaller than the hole diameter in the middle of the impeller 202, and the outer circle diameter of the step groove 215 is larger than the hole diameter in the middle of the impeller 202.

[0060] The beneficial effect of adopting the above technical solution is that during assembly, the step groove on the waterproof cover matches the hole of the impeller, the inner circle of the step groove is located in the hole of the impeller, and the outer circle is located outside the hole of the impeller, thereby sealing the center hole of the impeller and improving waterproofness.

[0061] In other specific embodiments of the present invention, the rest is the same as the above embodiment, except that, Figures 15 to 18 As shown, it also includes an annular frame 313, on which at least one wire clamp 304 is arranged, and a wire clamping groove 308 for constraining the movement of the winding is arranged in the wire clamp 304; the wire clamping groove 308 is connected from top to bottom, and one side is open on four sides and the other three sides are closed; the open end of the wire clamping groove 308 is provided with a cover 309 that can be opened one-way inward; one side of the cover 309 is hinged at the opening of the wire clamping groove 308, and a return spring 310 that applies force to the outside of the opening of the wire clamping groove is provided at the hinge; a groove is formed on the edge of the other side of the cover 309, which is opposite to the baffle 314 arranged on the open end of the wire clamping groove 308; a step 301 is formed upward on the outer edge of the outer ring of the annular frame 313, and the wire clamp 304 is integrally formed with the annular frame 313 on the step 301.

[0062] The beneficial effects of adopting the above technical solution are: After a wire is wound, it is placed in the wire clamp. Since the diameter of the wire clamping groove is smaller than the diameter of the winding, the winding is squeezed and clamped inside the wire clamp. There is no need to disconnect the plug-in, and it plays a clamping and fixing role, and it is not easy to detach the soldering point and loosen the wire. The wire clamping groove can clamp the winding, but in order to prevent the winding from loosening from the opening end of the wire clamp during long-term use, a cover that only opens inward is provided at the opening end of the wire clamping groove, and the winding cannot squeeze the cover from the inside of the groove to the outside. There is a baffle at the opening of the wire clamping groove. Under the action of the reset spring, the cover is always restricted on the baffle to ensure that the winding cannot squeeze the cover from the inside of the groove to the outside.

[0063] In other specific embodiments of the present invention, the rest is the same as the above embodiment, except that, Fig.15 and Fig.16 As shown, the annular frame 313 has a plurality of teeth extending toward its axis, and the plurality of teeth are evenly distributed along the circumferential direction of the inner ring of the annular frame 313, and a center hole 106 for the rotor to pass through is formed at one end of the tooth close to the axis; a vertical plate 302 is provided at the end of each tooth, and the vertical plate 302 surrounds the outer periphery of the center hole 106; the number of the teeth is 3, and the center angle between two adjacent teeth is 120°; the number of the wire clamps 304 is 3, and the center angle between two adjacent wire clamps is 120°; the annular frame 313 has a plurality of arc-shaped notches 307 on the outer periphery; the number of the arc-shaped notches 307 is 3, and the center angle between two adjacent arc-shaped notches is 120°.

[0064] The beneficial effect of adopting the above technical solution is that the annular frame as a whole matches the stator core 311 structure, and the stator should be installed better. A connecting portion 312 for connecting the upper and lower structures is provided on the outer periphery of the core structure, and for this purpose, a corresponding arc-shaped notch 307 is provided to avoid the connecting portion 312.

[0065] Of course, the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent transformation or modification made according to the spirit of the main technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A motor structure, comprising an upper bracket, wherein the upper bracket is provided with a central hole: A lower bracket, wherein the lower bracket is provided with a central hole for one end of the rotor to pass through; A stator, the stator is located between the upper bracket and the lower bracket, and a center hole is provided in the center of the stator for the rotor to pass through; A rotor, wherein the rotor is located between the upper bracket and the lower bracket; The lower bracket, the upper bracket and the stator are provided with positioning devices; The positioning device comprises an upper positioning column, a lower positioning column and a positioning hole; The upper bracket has an upper positioning column, the lower bracket has a lower positioning column, the positions of the upper positioning column and the lower positioning column correspond to each other, and the inner core of the stator has positioning holes corresponding to the upper positioning column and the lower positioning column; during installation, the upper positioning column and the lower positioning column are respectively placed in the upper half and the lower half of the same positioning hole of the core; The upper bracket body is triangular, and the three corners are upper bracket connection holes; the upper positioning column is located next to the upper bracket connection hole; the lower bracket and the iron core are correspondingly provided with connection holes, and the lower positioning column is located next to the lower bracket connection hole; The iron core comprises an annular yoke and a plurality of teeth extending from the yoke toward the axis thereof, the plurality of teeth being evenly distributed along the circumferential direction of the inner ring of the yoke, a pole shoe being formed at one end of the teeth close to the axis, a connecting portion being provided on the outer ring of the yoke, and the positioning holes being provided on the connecting portion; the connecting portion is an ear plate, which has three pieces and is integrally formed with the yoke and evenly distributed on the outer ring of the yoke, the ear plate having connecting holes, and the positioning holes being located beside the connecting holes; A plurality of blades are provided on one end of the lower bracket, and an air guide channel is formed between two adjacent blades; the blades are spirally distributed around the central circumference of the lower bracket; a ventilation hole is opened on the lower bracket, and the blades are provided on the ventilation hole, and the blades extend into the hole; an air guide plate is formed at the end of the blade, and the air guide plate is located inside the lower bracket and extends in the air guide direction of the blade; there are three fixing columns on the lower bracket, and the three fixing columns are respectively connected to the three blades; It also includes a waterproof cover, an air guide cover and an impeller; a waterproof cover is provided at one end of the lower bracket, and a central hole is provided in the middle of the waterproof cover for one end of the rotor to pass through; an air guide cover, the air guide cover is detachably connected to the lower bracket; the impeller is connected to the rotor, and the impeller is located in a space formed by the air guide cover and the waterproof cover; The waterproof cover is provided with a plurality of protrusions, and a slot is formed between two adjacent protrusions. The rotor is provided with a plurality of blades distributed circumferentially, and each blade cooperates with the waterproof cover through the slot. The protrusions are distributed circumferentially along the axis of the rotor. The outer periphery of the waterproof cover extends outwards for a certain distance to form a water retaining step, and the water retaining step is adapted to the annular groove on the outer shell where the motor is located. When the whole machine is installed, the water retaining step is tightly inserted into the annular groove; The lower bracket includes an inner ring frame and an outer ring frame arranged at the bottom of the waterproof cover, the inner diameter of the inner ring frame is larger than the diameter of the center hole, the outer ring frame is located near the edge of the waterproof cover, and the outer ring frame is provided with a connection hole for installation; The inner ring frame and the outer ring frame are connected by a plurality of rib plates; The rotor has a shaft sleeve, which is clamped in the inner ring frame, and a waterproof gasket is provided between the shaft sleeve and the inner ring frame; The center hole is provided with a circle of step grooves, the inner circle diameter of the step grooves is smaller than the hole diameter in the middle of the impeller, and the outer circle diameter of the step grooves is larger than the hole diameter in the middle of the impeller; It also includes an annular frame, on which at least one wire clamp is arranged, and inside the wire clamp is a wire clamping groove for constraining the movement of the winding wire; the wire clamping groove is through-through from top to bottom, with one side open and the other three sides closed; The open end of the wire clamping groove is provided with a cover which can be opened inward in one direction; One side of the cover is hinged at the opening of the clamping groove, and a return spring is provided at the hinge to apply force to the outside of the clamping groove opening; a groove is formed at the edge of the other side of the cover, which is opposite to the baffle provided on the opening end of the clamping groove; The outer edge of the annular frame is formed with a step upward, and the wire clamp is integrally formed with the annular frame on the step; The annular frame has a plurality of teeth extending toward the axis thereof, the plurality of teeth being evenly distributed along the circumference of the inner ring of the annular frame, and a center hole for the rotor to pass through is formed at one end of the teeth close to the axis; Each tooth has a vertical plate at the end thereof, and the vertical plate surrounds the outer circumference of the central hole; The number of teeth is 3, the center angle between two adjacent teeth is 120°, the number of clamps is 3, the center angle between two adjacent clamps is 120°; The outer circumference of the annular frame is provided with a plurality of arc-shaped notches; The number of the arc-shaped notches is 3, and the central angle between two adjacent arc-shaped notches is 120°.

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