Motorcycle alternating current motor and alternating current motor stator assembly thereof

Abstract

The utility model relates to a motorcycle AC motor and an AC motor stator assembly thereof, the AC motor stator assembly comprises a stator main body, the outer side wall of the stator main body is provided with a plurality of winding teeth, and a winding groove is arranged between two adjacent winding teeth; the winding teeth comprise a charging ignition coil winding tooth and a plurality of charging illumination coil winding teeth; an arc-shaped pole shoe is arranged at the top of each winding tooth, and arc-shaped baffles are arranged on the two side edges of each pole shoe; the outer side wall of the stator body, the outer walls of the winding teeth, the inner side walls of the pole shoes and the inner side walls of the baffles are all covered with insulating layers made of plastic materials, and charging ignition coil leading-out heads and charging lighting coil clamping piece clamping grooves are fixedly formed in the insulating layers. Only one charging ignition coil winding tooth is arranged, only one charging ignition coil needs to be arranged in the manufacturing process, the winding workload is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of motors, in particular to an AC motor for a motorcycle and an AC motor stator assembly thereof. Background Art

[0002] Motorcycle AC motors typically have an ignition coil and a lighting coil on their stators. The ignition coil provides low-voltage electricity to the igniter, while the lighting coil powers the motorcycle's headlights and also charges the battery. The CG125 series motor, a common AC motor for motorcycles, features two identical ignition coils on its stator. This requires winding the two poles twice during manufacturing, which impacts efficiency. Furthermore, the ignition coil and lighting coil require connectors or clips to connect to lead wires, which in turn connect to external components. However, the stators of existing CG125 series motors lack fixed-position connectors, requiring temporary connector installation during manufacturing. This complicates production and processing, impacting efficiency. Furthermore, because the relative position of the connectors to the coils is difficult to maintain, the position of the connectors varies from stator to stator, making motor performance difficult to standardize and impacting product quality. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a motorcycle AC motor and an AC motor stator assembly thereof, so as to improve production efficiency and motor quality.

[0004] In order to solve the above problems, the technical solution adopted by the present invention is as follows: an AC motor stator assembly includes a stator body, wherein the outer wall of the stator body is provided with a plurality of winding teeth, and a winding groove is provided between two adjacent winding teeth;

[0005] The winding teeth include a charging ignition coil winding tooth and a plurality of charging lighting coil winding teeth;

[0006] An arc-shaped pole shoe is provided on the top of each winding tooth, and arc-shaped baffles are provided on both sides of the pole shoe;

[0007] The outer wall of the stator body, the outer wall of the winding teeth, the inner wall of the pole shoe and the inner wall of the baffle are all covered with an insulating layer of plastic material, and the charging ignition coil lead-out head and the charging lighting coil card slot are fixedly provided on the insulating layer.

[0008] Furthermore, the insulating layer includes a first insulating end cover and a second insulating end cover, each of the first insulating end cover and the second insulating end cover includes an integrally formed center sleeve, a winding tooth groove arranged on the outer wall of the center sleeve, and a baffle cover arranged on the top of the winding tooth groove. The stator body and the winding teeth are inserted into the first insulating end cover and the second insulating end cover, and the ports of the first insulating end cover and the second insulating end cover abut each other, so that the center sleeve covers the outer wall of the stator body, the winding tooth groove covers the outer wall of the winding tooth, and the baffle cover covers the inner wall of the pole shoe and the baffle.

[0009] Furthermore, the charging ignition coil lead-out head is fixedly arranged on the outer side wall of the first insulating end cover, the charging lighting coil card slot is arranged on the outer side wall of the second insulating end cover, and the charging lighting coil card slot is integrally formed with the second insulating end cover.

[0010] Furthermore, the outer side wall of the baffle is exposed, and the outer side wall of the baffle and the outer side wall of the pole shoe are located on the same cylindrical surface.

[0011] The AC motor for motorcycle comprises a rotor and a stator arranged inside the rotor, wherein the stator adopts the above-mentioned AC motor stator assembly.

[0012] The beneficial effects of the present invention are as follows: 1. The present invention only provides one charging ignition coil winding tooth. During manufacturing, only one charging ignition coil needs to be provided, which reduces the winding workload and improves production efficiency.

[0013] 2. This utility model positions the charging ignition coil lead and the charging lighting coil connector slot in fixed positions. This ensures that, in each motor, the charging ignition coil lead is fixed relative to the charging ignition coil, and the charging lighting coil connector slot is fixed relative to the charging lighting coil. This ensures uniform motor performance and improves the pass rate. Furthermore, there is no need to temporarily install the charging ignition coil lead and charging lighting coil connector slot, reducing production complexity and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the stator assembly of the AC motor of the present invention before an insulation layer is provided;

[0015] Figure 2 This is a schematic diagram of one end face of the stator assembly of the AC motor of the present invention after the insulation layer is provided;

[0016] Figure 3 This is another end view of the stator assembly of the AC motor of the present invention after the insulation layer is provided;

[0017] Figure 4 is a schematic diagram of the inner side of the first insulating end cover;

[0018] Figure 5 is a schematic diagram of the outer side of the first insulating end cover;

[0019] Figure 6 is a schematic diagram of the inner side of the second insulating end cover;

[0020] Figure 7 is a schematic diagram of the outer side of the second insulating end cover;

[0021] Figure 8 This is a radial cross-sectional diagram of the stator assembly of the AC motor of the present utility model;

[0022] Figure 9 This is a radial cross-sectional schematic diagram of the utility model motorcycle AC motor;

[0023] Figure markings: 1—stator body; 2—winding teeth; 21—charging ignition coil winding teeth; 22—charging lighting coil winding teeth; 23—pole shoe; 24—baffle; 3—winding groove; 4—insulating layer; 41—charging ignition coil lead-out head; 42—charging lighting coil card slot; 43—first insulating end cover; 44—second insulating end cover; 45—center sleeve; 46—winding tooth groove; 47—baffle cover; 10—rotor. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] The AC motor stator assembly of the present utility model is as follows: Figures 1 to 8 As shown, it includes a stator body 1 , a plurality of winding teeth 2 are provided on the outer wall of the stator body 1 , and a winding slot 3 is provided between two adjacent winding teeth 2 .

[0026] The winding teeth 2 include a charging ignition coil winding tooth 21 and multiple charging lighting coil winding teeth 22. The charging ignition coil winding tooth 2 is used to wind the charging ignition coil, while the charging lighting coil winding teeth 22 are used to wind the charging lighting coil. The present invention only has one charging ignition coil winding tooth 21. During manufacturing, only one charging ignition coil needs to be installed, reducing the winding workload and improving production efficiency.

[0027] An arc-shaped pole shoe 23 is provided on the top of each winding tooth 2 , and arc-shaped baffles 24 are provided on both sides of the pole shoe 23 . The baffles 24 are used to limit the coil and improve the stability of the coil.

[0028] The charging ignition coil and charging lighting coil utilize enameled wire. The stator body 1, winding teeth 2, pole shoe 23, and baffle 24 are constructed of metal. Because the insulating varnish on the enameled wire is thin, wear can cause leakage. Therefore, insulation is typically required for areas contacting the coils. Specifically, the outer wall of the stator body 1, the outer wall of the winding teeth 2, the inner wall of the pole shoe 23, and the inner wall of the baffle 24 are covered with a plastic insulating layer 4 to prevent leakage. The charging ignition coil lead-out connector 41 and the charging lighting coil connector slot 42 are fixed to the insulating layer 4. The charging ignition coil lead-out connector 41 connects the charging ignition coil to the lead-out wire. Specifically, it is constructed of a conductive metal sheet. After the charging ignition coil is wound, the lead-out end of the charging ignition coil and the end of the lead-out wire can be soldered to the charging ignition coil lead-out connector 41. The charging lighting coil connector slot 42 is used to connect to the charging lighting coil connector. Specifically, the charging lighting coil connector slot 42 can be a rectangular slot, and the connector can be inserted into the charging lighting coil connector slot 42 to form an interference fit. After the charging lighting coil is wound, the connector can be inserted into the charging lighting coil connector slot 42, and the lead end of the charging lighting coil can be connected to the connector.

[0029] In the present invention, the charging ignition coil lead 41 and the charging lighting coil connector slot 42 can be secured to the insulating layer 4 simultaneously with the preparation of the insulating layer 4. By fixing the positions of the charging ignition coil lead 41 and the charging lighting coil connector slot 42, the charging ignition coil lead 41 is fixed relative to the charging ignition coil, and the charging lighting coil connector slot 42 is fixed relative to the charging lighting coil in each motor, thereby ensuring uniform motor performance and improving the qualified rate. Furthermore, there is no need to temporarily install the charging ignition coil lead 41 and the charging lighting coil connector slot 42, which reduces production difficulty and improves production efficiency.

[0030] Conventional insulation layer 4 is typically formed by injection molding. This involves placing the entire stator body 1 into a mold, then introducing molten plastic into the mold. After the plastic cools, it is demolded to form insulation layer 4. Since insulation layer 4 does not necessarily cover the entire surface of the stator core, for example, it cannot be applied to the end faces of the stator body 1 or the outer walls of the pole shoes 23. Consequently, the mold structure is complex, resulting in high costs and difficulty in mass production.

[0031] In order to facilitate obtaining the insulating layer 4, the insulating layer 4 of the present invention includes a first insulating end cover 43 and a second insulating end cover 44. The first insulating end cover 43 and the second insulating end cover 44 both include an integrally formed center sleeve 45, a winding tooth groove 46 arranged on the outer wall of the center sleeve 45, and a baffle cover 47 arranged on the top of the winding tooth groove 46. The shape and size of the center sleeve 45 are adapted to the outer shape and size of the stator body 1, the shape and size of the winding tooth groove 46 are adapted to the shape and size of the winding teeth 2, and the shape and size of the baffle cover 47 are adapted to the shape and size of the inner wall of the pole shoe 23 and the baffle 24. The stator body 1 and the winding teeth 2 are inserted into the first insulating end cover 43 and the second insulating end cover 44. Specifically, the stator body 1 is inserted into the center sleeve 45, the winding teeth 2 are inserted into the winding tooth slots 46, and the ports of the first insulating end cover 43 and the second insulating end cover 44 abut against each other, so that the center sleeve 45 covers the outer wall of the stator body 1, the winding tooth slots 46 cover the outer wall of the winding teeth 2, and the baffle cover 47 covers the inner wall of the pole shoe 23 and the baffle 24.

[0032] The first and second insulating end caps 43, 44 are plastic caps that can be formed through a molding process. The first and second insulating end caps 43, 44 have a certain degree of elasticity. After the stator body 1 and winding teeth 2 are inserted into the first and second insulating end caps 43, 44, the elasticity of the first and second insulating end caps 43, 44 ensures that the first and second insulating end caps 43, 44 are stably mounted on the stator body 1 and winding teeth 2.

[0033] The first insulating cover 61 and the second insulating cover 62 can be mass-produced by a molding process, which is very convenient and quick to install, and is conducive to improving the production efficiency of the AC stator core.

[0034] The charging ignition coil lead-out terminal 41 is fixedly arranged on the outer side wall of the first insulating end cover 43. When forming the first insulating end cover 43, one end of the charging ignition coil lead-out terminal 41 can be extended into the cavity of the forming mold, and the other end can be located outside the cavity. Then, the molten plastic is injected into the cavity of the mold. After the plastic cools and solidifies, it is demolded to obtain the first insulating end cover 43 with the charging ignition coil lead-out terminal 41.

[0035] The charging lighting coil card slot 42 is provided on the outer side wall of the second insulating end cover 44 . The charging lighting coil card slot 42 is made of plastic, and the charging lighting coil card slot 42 and the second insulating end cover 44 are integrally formed.

[0036] In the present invention, the outer side wall of the baffle 24 is exposed, and the outer side wall of the baffle 24 and the outer side wall of the pole shoe 23 are located on the same cylindrical surface.

[0037] In a traditional AC stator core, the insulating layer 4 covers the inner and outer walls of the baffle 24. Since the insulating layer 4 on the outer wall of the baffle 24 has a certain thickness, the outer diameter of the baffle 24 is smaller than the outer diameter of the pole shoe 23. After the stator and the rotor are assembled, the radial distance from the baffle 24 to the rotor is greater than the radial distance from the pole shoe 23 to the rotor. Therefore, the air gap between the baffle 24 and the rotor is large and the magnetic flux is small. Therefore, a large number of turns of enameled wire need to be set on the winding column 2 to meet the electromotive force requirements. The cost of the stator core is high and the weight is also large.

[0038] In the present invention, since the outer wall of the baffle 24 is not provided with an insulating layer 4, the outer wall of the baffle 24 and the outer wall of the pole shoe 23 can be located on the same cylindrical surface. After the rotor and the stator are assembled, the radial air gap between the baffle 24 and the inner arc of the rotor magnetic pole is reduced, so the magnetic flux will also increase.

[0039] In conventional AC stator cores, the baffle 24 is covered by an insulating layer 4, with magnetic flux primarily conducted through the pole shoe 23. In the present invention, the outer wall of the baffle 24 is moved outward and exposed, so that the outer wall of the baffle 24 and the outer wall of the pole shoe 23 are located on the same cylindrical surface. This allows both the baffle 24 and the pole shoe 23 to conduct magnetic flux simultaneously, increasing the magnetic conduction area and boosting the magnetic flux.

[0040] The more enameled wire turns on the winding teeth 2, the greater the electromotive force. Given the same number of enameled wire turns, the magnetic flux of the AC stator core of the present invention exceeds that of the prior art. Therefore, the present invention can achieve the same electromotive force with fewer enameled wire turns. This reduction in enameled wire turns reduces the manufacturing cost and weight of the AC stator core.

[0041] The utility model motorcycle AC motor, such as Figure 9 As shown, it includes a rotor 10 and a stator arranged inside the rotor 10. The stator adopts Figures 1 to 8 AC motor stator assembly shown.

[0042] The method for preparing the stator assembly of an AC motor of the present invention comprises the following steps:

[0043] S1. Prepare a stator body 1. Multiple winding teeth 2 are provided on the outer wall of the stator body 1. Winding slots 3 are provided between adjacent winding teeth 2. The winding teeth 2 include a charging ignition coil winding tooth 21 and multiple charging lighting coil winding teeth 22. Each winding tooth 2 is provided with an arc-shaped pole shoe 23 at the top, and arc-shaped baffles 24 are provided on both sides of the pole shoe 23. This step can be performed using existing technology.

[0044] S2. An insulating layer 4 is set on the outer wall of the stator body 1, the outer wall of the winding teeth 2, the inner wall of the pole shoe 23 and the inner wall of the baffle 24. The charging lighting coil card slot 42 is integrally formed with the insulating layer 4, and one end of the charging ignition coil lead-out head 41 is buried in the insulating layer 4, and the other end is exposed.

[0045] Specifically, the insulating layer 4 made of plastic material can be obtained by traditional injection molding. In order to improve production efficiency, a molding process is adopted to prepare the first insulating end cover 43 and the second insulating end cover 44. Then, the prepared first insulating end cover 43 and the second insulating end cover 44 are respectively sleeved on the stator body 1 from both ends. The open ends of the first insulating end cover 43 and the second insulating end cover 44 are abutted, so that the first insulating end cover 43 and the second insulating end cover 44 cover the outer wall of the stator body 1, the outer wall of the winding tooth 2, the inner wall of the pole shoe 23 and the inner wall of the baffle 24.

[0046] S3. Wind the charging ignition coil on the charging ignition coil winding teeth 21, and wind the charging lighting coil on the charging lighting coil winding teeth 22;

[0047] S4. Solder the lead-out end of the charging ignition coil to the charging ignition coil lead-out head 41, insert the card connector of the charging lighting coil into the charging lighting coil card connector slot 42, and connect the lead-out end of the charging lighting coil to the card connector.

[0048] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An AC motor stator assembly, comprising a stator body (1), wherein the outer wall of the stator body (1) is provided with a plurality of winding teeth (2), and a winding slot (3) is provided between two adjacent winding teeth (2); characterized in that: The winding teeth (2) include a charging ignition coil winding tooth (21) and a plurality of charging lighting coil winding teeth (22); An arc-shaped pole shoe (23) is provided on the top of each winding tooth (2), and arc-shaped baffles (24) are provided on both sides of the pole shoe (23); The outer wall of the stator body (1), the outer wall of the winding teeth (2), the inner wall of the pole shoe (23), and the inner wall of the baffle (24) are all covered with an insulating layer (4) made of plastic material, and a charging ignition coil lead (41) and a charging lighting coil card slot (42) are fixedly provided on the insulating layer (4).

2. The AC motor stator assembly according to claim 1, characterized in that: The insulating layer (4) comprises a first insulating end cover (43) and a second insulating end cover (44), wherein the first insulating end cover (43) and the second insulating end cover (44) each comprise an integrally formed center sleeve (45), a winding tooth slot (46) arranged on the outer wall of the center sleeve (45), and a baffle cover (47) arranged on the top of the winding tooth slot (46); the stator body (1) and the winding teeth (2) are plugged into the first insulating end cover (43) and the second insulating end cover (44), and the ports of the first insulating end cover (43) and the second insulating end cover (44) abut against each other, so that the center sleeve (45) covers the outer wall of the stator body (1), the winding tooth slot (46) covers the outer wall of the winding teeth (2), and the baffle cover (47) covers the inner wall of the pole shoe (23) and the baffle (24).

3. The AC motor stator assembly according to claim 2, characterized in that: The charging ignition coil lead (41) is fixedly arranged on the outer side wall of the first insulating end cover (43), the charging lighting coil card slot (42) is arranged on the outer side wall of the second insulating end cover (44), and the charging lighting coil card slot (42) and the second insulating end cover (44) are integrally formed.

4. The AC motor stator assembly according to claim 1, wherein: The outer side wall of the baffle (24) is exposed, and the outer side wall of the baffle (24) and the outer side wall of the pole shoe (23) are located on the same cylindrical surface.

5. A motorcycle AC motor comprising a rotor (10) and a stator disposed inside the rotor (10), characterized in that: The stator adopts the AC motor stator assembly according to any one of claims 1 to 4.

Images