Wire hooking frame stator assembly

Abstract

The utility model discloses a wire hooking frame stator assembly, which belongs to the technical field of brushless motors, solves the problems of overlarge radial size and large space occupancy of a motor, and adopts the technical scheme that the wire hooking frame stator assembly mainly comprises a main frame body and a wire hooking frame, the wire hooking frame comprises a wire hooking part, a connecting part and an embedding part which are connected in sequence, the wire hooking part and the connecting part are arranged at the end of the main frame body, the embedding part is embedded in the main frame body, the wire hooking part and the embedding part are arranged in a staggered mode in the axial direction of the main frame body, the wire hooking part and the connecting part form a wire winding groove, and the wire winding groove is located in the side, facing the main frame body, of the embedding part. The utility model is mainly used for satisfying the size and performance requirements of the compact motor.

Description

Technical Field

[0001] The utility model relates to the technical field of brushless motors, in particular to a wire hook frame stator assembly. Background Art

[0002] Brushless motors mainly use semiconductor switching devices to achieve electronic steering, but the wiring connection between the brushless motor stator and the electronic switching device is to directly align the wire ends of the two and then weld them, which can easily cause inaccurate welding wire position, loose welding wire, poor welding wire quality and other deficiencies, affecting the performance and appearance design function of the entire brushless motor, so a corresponding wire hook rack is required.

[0003] For example, patent CN216599254U discloses a brushless motor wire hooking frame, including a main frame, an insulating body is arranged at the top of the main frame, the bottom of the insulating body is fixedly connected to the top of the main frame, and the surface of the main frame is inlaid with vertical plates with equal spacing, and a conductive sheet is arranged at the top of the vertical plate. The end of the vertical plate away from the conductive sheet is provided with a lower connecting plate, and the top of the lower connecting plate is fixedly connected to the bottom of the vertical plate. A through hole is arranged at the center position inside the lower connecting plate, and both ends of the through hole extend to the outside of the lower connecting plate. The utility model can not only efficiently position the wiring between the stator of the brushless motor and the electronic switch device, thereby ensuring the wire hooking effect when the wire hooking frame is used, but also achieves the purpose of stable connection, thereby improving the structural strength of the wire hooking frame, and is convenient for firmly positioning the wire hooking frame, thereby improving the stability of the wire hooking frame when it is used. However, in actual use, the wire hooking frame is arranged on the outer wall of the main frame, the radial dimension of the entire motor is large, and the space occupancy rate is large, which cannot meet the requirements of the model with relatively compact structure of the whole machine and motor. Utility Model Content

[0004] The utility model aims to provide a wire hook frame stator assembly to improve the problem that the radial dimension of the motor is too large and the space occupancy is large.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a wire hooking frame stator assembly, including a main frame and a wire hooking frame, the wire hooking frame includes a wire hooking part, a connecting part and an embedded part connected in sequence, the wire hooking part and the connecting part are arranged at the end of the main frame, the embedded part is embedded in the main frame, the wire hooking part and the embedded part are staggered in the axial direction of the main frame, the wire hooking part and the connecting part constitute a winding groove, and the winding groove is on the side of the embedded part facing the main frame.

[0006] After adopting the above technical scheme, the utility model has the following advantages: the wire hooking part and the connecting part of the wire hooking frame are designed to be arranged at the end of the main frame body, and the winding groove is on the side of the embedded part facing the main frame body. Compared with the prior art in which the wire hooking part is arranged on the side wall of the main frame body, the radial dimension of the entire stator assembly is reduced, making the entire stator assembly more compact and reducing the occupancy rate of the stator in the internal space of the machine; and the embedded part on the wire hooking frame is designed to be embedded in the main frame body, so that the main frame body and the wire hooking frame form a detachable connection. When the wire hooking frame is damaged, the old wire hooking frame can be disassembled and a new wire hooking frame can be installed to extend the service life of the stator assembly without replacing the entire stator assembly. The invention discloses a stator assembly, which reduces the maintenance cost of the machine; because the wire hooking part, the connecting part and the embedding part are connected in sequence, the wire hooking part and the connecting part are arranged at the end of the main frame, and the embedding part is embedded in the main frame, and the wire hooking part and the embedding part are staggered in the axial direction of the main frame, and the wire hooking part is closer to the axis of the main frame, so that the wire hooking part is located as far as possible within the projection of the main frame, thereby reducing the radial size of the entire stator assembly; wherein, the winding groove formed by the wire hooking part and the connecting part can enable the coil wire to be accurately placed and fixed in the correct position, thereby reducing the safety hazards caused by the displacement or instability of the coil wire, and ensuring the safety and stability of the coil wire.

[0007] Furthermore, the connecting portion extends radially along the main frame, one end of the connecting portion away from the axis of the main frame is connected to the embedded portion, and one end of the connecting portion close to the axis of the main frame is connected to the wire hook portion, and the opening of the winding groove faces the side away from the axis of the main frame.

[0008] By adopting the above-mentioned technical scheme, the end of the connecting part close to the axis of the main frame is connected to the wire hooking part, so that the wire hooking part is closer to the center of the main frame, the amount of coil wire used is reduced, and the production cost is saved; the opening of the winding groove is toward the side away from the axis of the main frame, so that the coil wire can enter and exit the wire hooking frame more easily. This design allows the operator to more conveniently carry out wiring and connection, thereby improving work efficiency; if the opening of the winding groove is toward the side close to the axis of the main frame, it may increase the interference and collision between the wire and the stator or other components when the wire enters and exits, resulting in operational difficulties and safety hazards; and the opening of the winding groove is toward the side away from the axis of the main frame, which can reduce such interference and improve the convenience and safety of operation.

[0009] Furthermore, the wire hooking portion is arranged to be inclined relative to the end surface of the main frame, so that the axial length of the winding groove decreases from the opening position inward.

[0010] By adopting the above-mentioned technical solution, the wire hooking part can have a guiding function, making it convenient for the operator to wind the wire into the winding groove, thereby improving the operator's work efficiency.

[0011] Furthermore, the hooking portion is inclined at an angle α relative to the end surface of the main frame, and 15°≤α≤45°.

[0012] When the aforementioned technical solution is adopted, if α is greater than 45°, the inclination angle of the wire hook part relative to the end face of the main frame is too large, and the wire is easy to fall out when it is wound into the winding groove, which is inconvenient to operate; if α is less than 15°, the inclination angle of the wire hook part relative to the end face of the main frame is too small, the guiding effect of the guide part of the wire hook part is small, and the opening of the winding groove is small, making it difficult to wind the wire into the winding groove.

[0013] Furthermore, a first embedded block with a dovetail structure is provided on the embedded portion, and the first embedded block and the embedded portion are an integrally formed structure.

[0014] By adopting the aforementioned technical solution, the dovetail design of the first embedded block provides a larger contact area during connection, thereby increasing the stability and strength of the connection, and can effectively resist tensile force and shear force, making the connection more secure, and the shape of the dovetail connection can effectively prevent the relative movement of the connecting parts, thereby improving the stability and reliability of the connection; the first embedded block and the embedded part are integrally formed to eliminate seams and connecting parts, thereby improving the strength and rigidity of the embedded part and the first embedded block.

[0015] Furthermore, the wire hook frame also includes a reinforcement portion, and the reinforcement portion connects the connection portion and the embedding portion.

[0016] By adopting the above-mentioned technical solution, the reinforcing part of the wire hook frame is connected to the connecting part and the embedded part, so as to increase the strength of the connecting part and the embedded part.

[0017] Furthermore, the connecting portion is provided with a second embedded block with a dovetail structure, and the second embedded block is embedded in the reinforcing portion.

[0018] By adopting the above-mentioned technical solution, the second embedded block with a dovetail structure provided in the connecting portion is embedded in the reinforcing portion, thereby strengthening the connection between the connecting portion and the reinforcing portion.

[0019] Furthermore, the distance between one end of the hooking portion away from the axis of the main frame and the axis of the main frame is L1, the distance between one end of the connecting portion away from the axis of the main frame and the axis of the main frame is L2, and L1≤L2.

[0020] By adopting the above-mentioned technical solution, if L1>L2, the wire hooking portion will be excessively extended radially on the main frame, exceeding the end of the connecting portion away from the axis of the main frame, thereby increasing the radial dimension of the entire stator assembly; if L1≤L2, the wire hooking portion can be controlled not to exceed the end of the connecting portion away from the axis of the main frame, thereby avoiding the wire hooking portion being too long and increasing the radial dimension of the stator assembly.

[0021] Furthermore, an axially protruding guide portion is provided at the end of the main frame, and two guide portions are arranged corresponding to one wire hooking portion, the two guide portions are arranged on both sides of the corresponding wire hooking portion, and the two guide portions and the corresponding wire hooking portion are distributed in a triangle, so that the wire can pass around the guide portion and the corresponding wire hooking portion in a "J" shape.

[0022] By adopting the above technical solution, the guide part can cooperate with the wire hooking part to accurately place and fix the coil wire in the correct position, helping the operator to correctly place and fix the coil wire according to the design requirements to maintain its ideal shape and position.

[0023] Furthermore, the main frame includes a main body and a protrusion radially protruding from the outer circumference of the main body, and the wire hook frame is integrally formed with the protrusion.

[0024] By adopting the above technical solution, the wire hooking frame is arranged on the protrusion radially protruding from the outer circumference of the main body, so as to prevent the wire hooking frame from being too close to the main body and causing interference to the devices in the main body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The utility model is further described below in conjunction with the accompanying drawings:

[0026] Figure 1 It is a schematic diagram of the wire hook frame structure;

[0027] Figure 2 Schematic diagram of the stator assembly structure;

[0028] Figure 3 This is an exploded schematic diagram of the stator assembly;

[0029] Figure 4 It is a top view of the stator assembly;

[0030] In the figure: main frame 1, main body 11, protrusion 12, stator core 13, tooth one 131, tooth two 132, tooth three 133, tooth four 134, tooth five 135, tooth six 136, guide part 14, wire hook frame 2, wire hook part 21, connecting part 22, second embedded block 221, embedded part 23, first embedded block 231, winding groove 24, reinforcement part 25, a hook 26, b hook 27, c hook 28. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0032] The terms "first", "second", etc. (if any) in the specification and claims of the present utility model are used to distinguish similar objects, rather than to describe a specific order or sequence. Even if "second" is used to distinguish before a certain technical feature, it does not necessarily indicate that it has "first". It should be understood that in the present utility model, "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. It should be understood that in the present utility model, "multiple" refers to two or more. "And / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, X and / or Y can represent: X exists alone, X and Y exist at the same time, and Y exists alone. The character " / " generally indicates that the related objects before and after are in an "or" relationship. "Contains X, Y and Z", "Contains X, Y, Z" means that X, Y, and Z are all included, "Contains X, Y or Z" means that one of X, Y, and Z is included, and "Contains X, Y and / or Z" means that any one, any two, or three of X, Y, and Z are included.

[0033] The following specific embodiments are used to describe the technical solution of the utility model in detail. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0034] like Figures 1 to 4 As shown, the utility model provides a stator assembly of a wire hooking frame 2, including a main frame body 1 and a wire hooking frame 2, the wire hooking frame 2 includes a wire hooking portion 21, a connecting portion 22 and an embedding portion 23 connected in sequence, the wire hooking portion 21 and the connecting portion 22 are arranged at the end of the main frame body 1, and the embedding portion 23 is embedded in the main frame body 1, and the wire hooking portion 21 and the embedding portion 23 are staggered in the axial direction of the main frame body 1, and the wire hooking portion 21 and the connecting portion 22 constitute a winding groove 24, and the winding groove 24 is located on the side of the embedding portion 23 facing the main frame body 1.

[0035] The utility model is designed to arrange the wire hooking part 21 and the connecting part 22 of the wire hooking frame 2 at the end of the main frame body 1, and the winding groove 24 is located on the side of the embedded part 23 facing the main frame body 1. Compared with the prior art in which the wire hooking part 21 is arranged on the side wall of the main frame body 1, the radial dimension of the entire stator assembly is reduced, making the entire stator assembly more compact and reducing the occupancy rate of the stator in the internal space of the machine; and the embedded part 23 on the wire hooking frame 2 is embedded in the main frame body 1, so that the main frame body 1 and the wire hooking frame 2 form a detachable connection. When the wire hooking frame 2 is damaged, the old wire hooking frame 2 can be disassembled and a new wire hooking frame 2 can be installed to extend the service life of the stator assembly without replacing the entire stator assembly, thereby reducing the maintenance cost of the machine; because the wire hooking part 21, the connecting part 22 and the embedded part 23 are connected in sequence The wire hooking portion 21 and the connecting portion 22 are arranged at the end of the main frame 1, and the embedded portion 23 is embedded in the main frame 1 along the outer wall of the main frame 1. The wire hooking portion 21 and the embedded portion 23 are staggered in the axial direction of the main frame 1. It should be noted that the staggered setting here means that the projections of the wire hooking portion 21 and the embedded portion 23 in the axial direction of the main frame 1 do not completely overlap, and the wire hooking portion 21 is closer to the axis of the main frame 1, so that the wire hooking portion 21 is located as much as possible within the projection of the main frame 1, reducing the radial size of the entire stator assembly; wherein, the winding groove 24 formed by the wire hooking portion 21 and the connecting portion 22 can enable the coil wire to be accurately placed and fixed in the correct position, which can reduce the safety hazards caused by the displacement or instability of the coil wire, and ensure the safety and stability of the coil wire.

[0036] Specifically, the connecting portion 22 extends radially along the main frame 1, and the end of the connecting portion 22 away from the axis of the main frame 1 is connected to the embedded portion 23, and the end of the connecting portion 22 close to the axis of the main frame 1 is connected to the wire hooking portion 21, and the opening of the winding groove 24 is facing the side away from the axis of the main frame 1; by connecting the end of the connecting portion 22 close to the axis of the main frame 1 to the wire hooking portion 21, the wire hooking portion 21 is closer to the center of the main frame 1, the amount of coil wire is reduced, and the production cost is saved; the opening of the winding groove 24 is facing the side away from the axis of the main frame 1, which can make it easier for the coil wire to enter and exit the wire hooking frame 2, and this design can make it more convenient for the operator to carry out wiring and connection, thereby improving work efficiency; if the opening of the winding groove 24 is facing the side close to the axis of the main frame 1, it may increase the interference and collision between the wire and the stator or other components when the wire enters and exits, resulting in difficulty in operation and safety hazards; and the opening of the winding groove 24 is facing the side away from the axis of the main frame 1, which can reduce such interference and improve the convenience and safety of operation.

[0037] In this embodiment, the wire hooking portion 21 is inclined relative to the end surface of the main frame 1 so that the axial length of the winding groove 24 decreases from the opening position inward; this design can make the wire hooking portion 21 have a guiding function, making it convenient for the operator to wind the wire into the winding groove 24, thereby improving the operator's work efficiency.

[0038] In another embodiment, the wire hooking portion 21 may be a barb extending upward relative to the end surface of the main frame 1 , and the wire may be wound around the wire hooking frame 2 through the barb design of the wire hooking portion 21 without falling out.

[0039] Specifically, in the present embodiment, the inclination angle of the wire hook portion 21 relative to the end face of the main frame body 1 is α, α=25°; of course, in other embodiments, α may also be 20°, 30° or 35°, etc., as long as α satisfies 15°≤α≤45°; wherein, if α is greater than 45°, the inclination angle of the wire hook portion 21 relative to the end face of the main frame body 1 is too large, and the wire is easy to fall out when it is wound into the winding groove 24, which is inconvenient to operate; if α is less than 15°, the inclination angle of the wire hook portion relative to the end face of the main frame body 1 is too small, the guiding effect of the guide portion 14 of the wire hook portion 21 is small, and the opening of the winding groove 24 is small, and it is not easy to wind the wire into the winding groove 24.

[0040] In this embodiment, the embedded portion 23 is a long strip structure that fits the outer wall of the main frame 1. A first embedded block 231 with a dovetail structure is provided in the middle of the embedded portion 23. The first embedded block 231 and the embedded portion 23 are an integrally formed structure; the dovetail design of the first embedded block 231 provides a larger contact area during connection, thereby increasing the stability and strength of the connection, and can effectively resist tensile force and shear force, making the connection more secure, and the shape of the dovetail connection can effectively prevent the relative movement of the connecting portion 22, thereby improving the stability and reliability of the connection; the integral molding of the first embedded block 231 and the embedded portion 23 can eliminate the seams and the connecting portion 22, thereby improving the strength and rigidity of the embedded portion 23 and the first embedded block 231.

[0041] In this embodiment, the wire hook frame 2 also includes an insulating and high-temperature resistant reinforcement portion 25, which connects the connecting portion 22 and the embedded portion 23, and the reinforcement portion 25 is made of phenolic resin; the reinforcement portion 25 of the wire hook frame 2 is connected to the connecting portion 22 and the embedded portion 23 to increase the strength of the connecting portion 22 and the embedded portion 23.

[0042] Specifically, the connecting portion 22 is provided with a second embedded block 221 with a dovetail structure, and the second embedded block 221 is embedded in the reinforcing portion 25 ; the second embedded block 221 with a dovetail structure on the connecting portion 22 is embedded in the reinforcing portion 25 , thereby enhancing the connection between the connecting portion 22 and the reinforcing portion 25 .

[0043] Among them, in order to further reduce the radial dimension of the stator assembly, the hooking portion 21 needs to be kept within the projection of the main frame 1, and the distance between the end of the hooking portion 21 away from the axis of the main frame 1 and the axis of the main frame 1 is set to L1, and the distance between the end of the connecting portion 22 away from the axis of the main frame 1 and the axis of the main frame 1 is set to L2, and L1 and L2 must satisfy L1≤L2; if L1>L2, the hooking portion 21 will be excessively extended radially on the main frame 1, exceeding the end of the connecting portion 22 away from the axis of the main frame 1, thereby increasing the radial dimension of the entire stator assembly; L1≤L2 can control the hooking portion 21 not to exceed the end of the connecting portion 22 away from the axis of the main frame 1, thereby avoiding the hooking portion 21 being too long and increasing the radial dimension of the stator assembly.

[0044] It can be understood that an axially protruding guide portion 14 is also provided at the end of the main frame 1, and two guide portions 14 are provided corresponding to one wire hooking portion 21. The two guide portions 14 are provided on both sides of the corresponding wire hooking portion 21, and the two guide portions 14 and the corresponding wire hooking portion 21 are distributed in a triangle, so that the wire is in a "J" shape and passes around the guide portion 14 and the corresponding wire hooking portion 21; the guide portion 14 can cooperate with the wire hooking portion 21 to accurately place and fix the coil wire in the correct position, helping the operator to correctly place and fix the coil wire according to the design requirements to maintain its ideal shape and position.

[0045] In this embodiment, if Figure 4 As shown, the main frame 1 includes a main body 11 and three protrusions 12 radially protruding from the outer periphery of the main body 11, each protrusion 12 is provided with a hook frame 2, which are hook a 26, hook b 27 and hook c 28 respectively; the main frame 1 is also provided with a stator core 13 integrally formed with the main frame 1, and the stator core 13 is provided with six stator core 13 teeth, and the six stator core 13 teeth are winding parts for winding copper wire; when workers wind the wire, they can follow the following steps: first hang the copper wire on the hook a 26, and then wind the wire. Tooth one 131, return to b hook 27, hang on b hook 27, wind around tooth three 133, return to c hook 28, hang on c hook 28, wind around tooth five 135, return to a hook 26, hang on a hook 26, wind around tooth four 134, return to c hook 28, hang on c hook 28, wind around tooth two 132, return to b hook 27, hang on b hook 27, wind around tooth six 136, return and hang on a hook, and end winding after cutting the thread; among them, a hook 26 corresponds to tooth one 131 and tooth four 134, b hook 27 corresponds to tooth two 132 and tooth five 135, and c hook 28 corresponds to tooth three 133 and tooth six 136.

[0046] In addition to the above-mentioned preferred embodiments, the present invention also has other implementation modes. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.

Claims

1. A wire hooking frame stator assembly, comprising a main frame and a wire hooking frame, characterized in that: The wire hooking frame includes a wire hooking part, a connecting part and an embedded part connected in sequence, the wire hooking part and the connecting part are arranged at the ends of the main frame body, the embedded part is embedded in the main frame body, the wire hooking part and the embedded part are staggered in the axial direction of the main frame body, the wire hooking part and the connecting part form a winding groove, and the winding groove is on the side of the embedded part facing the main frame body.

2. A wire hook stator assembly according to claim 1, characterized in that: The connecting portion extends radially along the main frame, one end of the connecting portion away from the main frame axis is connected to the embedded portion, one end of the connecting portion close to the main frame axis is connected to the wire hook portion, and the opening of the winding groove faces the side away from the main frame axis.

3. A wire hook stator assembly according to claim 2, characterized in that: The wire hooking portion is arranged to be inclined relative to the end surface of the main frame, so that the axial length of the winding groove decreases from the opening position inward.

4. A wire hook stator assembly according to claim 3, characterized in that: The hooking portion is inclined at an angle α relative to the end surface of the main frame, and 15°≤α≤45°.

5. The stator assembly of the wire hook frame according to claim 1 is characterized in that: The embedding portion is provided with a first embedding block with a dovetail structure, and the first embedding block and the embedding portion are an integrally formed structure.

6. The stator assembly of a wire hook frame according to claim 1 is characterized in that: The wire hook frame further includes a reinforcing portion, which connects the connecting portion and the embedding portion.

7. The stator assembly of the wire hook according to claim 6 is characterized in that: The connecting portion is provided with a second embedded block with a dovetail structure, and the second embedded block is embedded in the reinforcing portion.

8. The wire hook stator assembly according to claim 1 is characterized in that: The distance between one end of the hooking portion away from the axis of the main frame and the axis of the main frame is L1, and the distance between one end of the connecting portion away from the axis of the main frame and the axis of the main frame is L2, and L1≤L2.

9. The stator assembly of a wire hook frame according to claim 1, characterized in that: An axially protruding guide portion is provided at the end of the main frame, and two guide portions are arranged corresponding to one wire hooking portion. The two guide portions are arranged on both sides of the corresponding wire hooking portion, and the two guide portions and the corresponding wire hooking portion are distributed in a triangular shape, so that the wire can pass around the guide portion and the corresponding wire hooking portion in a "J" shape.

10. The stator assembly of the wire hook frame according to claim 1, characterized in that: The main frame includes a main body and a protrusion radially protruding from the outer circumference of the main body, and the wire hook frame is integrally formed and arranged on the protrusion.

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