TWM488797U - Motor stator - Google Patents

Description

Motor stator

The present invention relates to a component structure of an electric motor, and more particularly to a motor stator having large and small stators.

In order to solve the problem that the lengths of the respective studs of the small stator of the general motor stator are the same, there is a problem that the assembly and assembly process of the large and small stators lacks the positioning structure, and the length of the wire to be used is long, etc., the relevant industry develops and designs a TW certificate. The stator structure disclosed in the new patent No. M474302. Referring to FIG. 5, the conventional motor stator is provided with a large stator 80 and a small stator 90 coupled to the large stator 80. The small stator 90 is composed of a plurality of sheets of silicon steel sheets stacked on the outer circumference of the small stator 90. The edge spacing is alternately arranged around the four long tooth columns 91 and the four short tooth columns 92, and eight inner fixing walls of the large stator 80 are spaced apart from each other to provide an embedded groove for the combination of the long and short tooth columns 91 and 92. 81. By designing the series of long and short studs 91 and 92, the problem that the assembly process of the general motor stator lacks the positioning structure is solved.

For example, the existing motor stator structure disclosed in the new patent No. M474302 can solve some problems in the design of the equal length of the small stator of the general motor stator, but the existing structural design of the motor stator still exists: 1. The long and short studs 91 and 92 of the existing small stator 90 are of a straight column type design, and it is difficult to obtain a stable positioning effect of the wound coil, and when the large and small stators 80 and 90 are combined, the coil is easily damaged. Leakage and poor pressure resistance. 2. The existing small stator 90 is embedded and coupled to the large stator 80 in a strong pressing and pressing manner, which not only requires high processing precision of the components but also is cumbersome to assemble, and the assembly process easily causes long and short studs of the small stator 90. 91, 92 deformation, resulting in no concentric circles and problems. 3. The coil of the existing motor stator has a certain distance from the small stator 90, so that the coil cannot be completely attached to the silicon steel sheet of the small stator 90, which is liable to cause magnetic loss and affect the magnetic permeability of the motor stator.

In order to solve the shortcomings and limitations of the existing motor stator, the deformation of the tooth column and the damage of the coil are easily caused. The main purpose of the present invention is to provide a motor stator which is easy to assemble and has high product yield. The present invention will be long and short. The end portion is provided with a convex portion with an increased width, and can be correspondingly embedded in the corresponding fixing groove of the large stator, and is matched and fixed by the fixing bolts being inserted between the fitting portion and the fitting groove. Reducing the current sound, the coil can obtain a firm fixing effect, and the large and small stators are assembled and combined without breaking the coil or causing deformation of the long and short studs, effectively improving the product yield and durability of the motor stator, and solving the existing Problems with the motor stator.

The motor stator proposed by the present invention includes: a large stator in the form of a rectangular hollow frame and forming an assembly space in the intermediate portion, wherein the inner peripheral wall of the assembly space corresponds to each corner of the large stator And a recessed groove is formed in each of the positions at the middle of each side, wherein the distance between the recessed groove corresponding to each corner position and the intermediate point of the large stator is greater than the position of the recessed groove provided at the corresponding side position from the intermediate point of the large stator a small stator, which is embedded in the assembly space of the large stator, the small stator is provided with a ring portion located in the middle portion, and is arranged by the equally spaced staggered arrangement of the ring portions, and has four long tooth columns and four The short studs are respectively provided at the ends of each of the long studs and the short studs with a width-increasing and matching convex fitting portion fitted to each corresponding fixing groove; and eight fixing bolts respectively corresponding to the insertion The small stator is fixed to the assembly space of the large stator between the fitting convex portion and the fitting groove.

In the motor stator, a bolt is correspondingly recessed at an intermediate position of the fitting surface of the inserting groove and the protruding portion, and the fixing bolt is inserted into the corresponding plug.

The motor stator, wherein the inserting groove is formed in a dovetail shape, and the convex fitting portion is matched with a matching dovetail shape, and the inner hole of the small stator is fixed by the dovetail seat to maintain the roundness of the small stator. .

In the motor stator, a pair of insulators are fitted to the outside of the small stator, and the tail ends of the pair of insulators partially overlap.

The motor stator, wherein the fixing bolt is a rivet.

The enhancements obtained by the novel technical means include: 1. The novel end of the small stator short and short dents is a convex portion with an increased width, which enables the coils wound around the long and short dents to be securely secured. The fixing effect, when the large and small stators are combined, does not damage the coil and causes problems of leakage and withstand voltage, thereby effectively improving the yield and durability of the product. 2. The new type is fixed and fixed by a fixing bolt (rivet) through a convex fitting portion and a fixing groove which are fitted into the small stator and the large stator, which can easily and quickly complete assembly and assembly of the large and small stators, and when assembling and combining The use of the mandrel and the male and female design of the fixed small stator inner hole to maintain the true roundness, will not cause long and short tooth column deformation and produce no concentric circles and other undesirable problems. 3. The new type can make the coil close to the small stator (the silicon steel sheet), effectively reducing the magnetic loss and improving the magnetic permeability.

In order to understand the technical features and practical effects of the present invention in detail, and in accordance with the novel content, the following further describes the preferred embodiment as shown in the following figure:

A preferred embodiment of the motor stator of the present invention is shown in FIG. 1. The motor stator is composed of a large stator 10, a small stator 20 embedded in the large stator 10, and a plurality of branches for combining the large and small. The fixing bolts 30 of the stators 10 and 20 are composed of components, and a set of insulators 40 can be sleeved on the small stator 20, thereby facilitating the winding arrangement of the coils.

As shown in FIG. 1 and FIG. 2, the large stator 10 is a rectangular hollow frame structure integrally formed of a steel material and having a suitable thickness. The hollow region of the large stator 10 forms an assembly space 11 for fitting and assembling the small stator 20. The inner peripheral wall shape of the assembly space 11 is set to a substantially octagonal shape corresponding to the rectangular outer shape of the large stator 10, and the inner peripheral wall corresponding to the angular position of the large stator 10 is greater than the intermediate point by a distance greater than the large stator. 10 The distance between the inner peripheral wall of the side position and the intermediate point is provided at the annular inner peripheral wall of the large stator 10 at an interval of eight recessed grooves 12 in the shape of a dovetail groove, and the eight embedded grooves 12 respectively correspond to the large The position of each corner of the stator 10 and the intermediate position of each side surface; in order to cooperate with the threading and coupling of the fixing bolts 30, the large stator 10 is recessed at an intermediate position of each of the fixing slots 12, and an axial extension of the large stator 10 is provided. A semi-cylindrical bolt 13 .

As shown in FIG. 1 and FIG. 2, the small stator 20 is integrally formed of a silicon steel material and has the same thickness as the large stator 10. The small stator 20 is provided with a ring portion 21 in the middle portion and having a ring shape. The outer peripheral wall of the portion 21 is alternately arranged in a staggered manner, and is provided with four long studs 21 and four short studs 23 corresponding to the respective fitting grooves 12 of the large stator 10, the long studs 22 and the short studs 23 The end matching is set to a convex portion 231 having an increased width and a substantially dovetail seat, wherein the length and shape of each long tooth column 22 match each of the fitting grooves 12 at the corner position of the large stator 10, and each short tooth column 23 The length and shape match the respective insertion grooves 12 at the middle of the side of the large stator 10, so that the convex portion 231 of each of the long and short dents 22, 23 can be fitted into the corresponding insertion of the large stator 10. The trough 12; the present invention forms a semi-cylindrical bolt 222, 232 on the outer peripheral side of each of the long studs 22 and each of the short studs 23, which is opposite to the corresponding opening 13 of the corresponding fitting groove 12, so that the phases are Corresponding pairs of pins 13, 222, 232 are combined to form a cylindrical bolt hole.

As shown in FIG. 1 and FIG. 2, the number of the fixing bolts 30 provided in the present invention corresponds to the number of the bolts 13, 222, 232 corresponding to the arrangement of the large stator 10 and the small stator 20, as shown in the figure. In the preferred embodiment, the present invention is provided with eight fixing bolts 30 and each fixing bolt 30 is a rivet. The set of insulators 40 is a pair of insulators 40 that are matched to the small stator 20 and that are covered by the two sides to cover the small stator 20. As shown in FIGS. 1 and 4, the set of insulators 40 are used in the small stator. The outer portions of each of the long studs 22 and the short studs 23 of 20 form an insulating form, thereby facilitating the winding arrangement of the coils 40. The insulators 40 of the present invention are partially overlapped at the end of the joint, thereby avoiding the existing insulators. A problem arises in that a gap is formed in the middle when the joint is joined to cause a leakage phenomenon.

As shown in FIG. 1 and FIG. 4, the end of the long and short studs 22 and 23 of the small stator 20 is a convex portion 221 and 231 having a large width, and is fitted with the assembly of the insulator 40. The coil 50 can be firmly and protectedly wound around the column body of the long and short studs 22, 23, thereby effectively preventing the coil 50 from being damaged, and the tail ends of the pair of insulators 40 are partially overlapped, thereby effectively avoiding the small The problem that the stator 20 is exposed to cause leakage is caused. Referring to FIG. 2 to FIG. 4 , when the present invention is assembled and assembled, the small stator 20 can be easily aligned and positioned by the matching fitting of the convex portions 221 and 231 and the corresponding fixing grooves 12 . In the assembly space 11 of the large stator 10, and using the dovetail seat male and female design, the assembly process does not cause the long and short studs 22, 23 to deform and effectively maintain the roundness of the inner hole of the small stator 20; Then, the fixing pins 30 are respectively placed on the opposite bolts 13 , 222 , 232 and riveted and fixed, so that the small stators 20 can be stably fixed to the large stator 10 by using the fixing bolts 30, which is simple and convenient. Quickly assembled into a new motor stator as shown in Figure 4.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any person having ordinary knowledge in the art can use the present invention without departing from the technical features of the present invention. Equivalent embodiments of the novel modifications or modifications made by the novel teachings are still within the scope of the novel features.

10‧‧‧large stator
11‧‧‧Assembly space
12‧‧‧Inlay slot
13‧‧‧ Socket
20‧‧‧Small stator
21‧‧‧ Ring Department
22‧‧‧ long tooth column
221, 231‧‧‧ convex part
222, 232‧‧ ‧ spigot
23‧‧‧ short studs
30‧‧‧fixing bolt
40‧‧‧Insulator
50‧‧‧ coil
80‧‧‧large stator
81‧‧‧Inlay slot
90‧‧‧Small stator
91‧‧‧ long tooth column
92‧‧‧ short studs

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an exploded view of the components of the preferred embodiment of the present invention. 2 is a combined configuration diagram of a preferred embodiment of the present invention. Figure 3 is a combined cross-sectional view of a preferred embodiment of the present invention. Figure 4 is a reference view of an implementation state of the preferred embodiment of the present invention. Fig. 5 is a combined arrangement diagram of a conventional motor stator.

10‧‧‧large stator

11‧‧‧Assembly space

12‧‧‧Inlay slot

13‧‧‧ Socket

20‧‧‧Small stator

21‧‧‧ Ring Department

22‧‧‧ long tooth column

221, 231‧‧‧ convex part

222, 232‧‧ ‧ spigot

23‧‧‧ short studs

30‧‧‧fixing bolt

Claims (7)

A motor stator comprising: a large stator in the form of a rectangular hollow frame and forming an assembly space in an intermediate portion, wherein an inner peripheral wall of the assembly space is recessed corresponding to each corner of the large stator and a position intermediate each side The recessed groove, wherein the distance between the recessed groove corresponding to each corner position and the intermediate point of the large stator is greater than the distance of the recessed groove provided at the corresponding side position from the intermediate point of the large stator; The assembly space of the large stator, the small stator is provided with a ring portion located in the middle portion, and is arranged by the equally spaced staggered arrangement of the ring portion, and has four long tooth columns and four short tooth columns, and the long tooth columns and The ends of each of the short studs are respectively provided with a convex portion having an increased width and matchingly fitted to each of the corresponding caulking grooves; and eight fixing bolts respectively corresponding to the fitting and embedding of the fittings Between the solid grooves, the small stator is fixed to the assembly space of the large stator. The motor stator according to claim 1, wherein a corresponding opening is formed in a middle of the fitting surface of the fitting groove and the fitting portion, and the fixing bolt is inserted into the opposite bolt. In the mouth. The motor stator according to claim 2, wherein the inserting groove is formed in a dovetail shape, and the convex fitting portion is formed in a matching dovetail shape. The motor stator according to claim 1, wherein the inserting groove is formed in a dovetail shape, and the convex fitting portion is formed in a matching dovetail shape. The motor stator according to any one of claims 1 to 4, wherein a pair of insulators are fitted to the outside of the small stator, and the tail ends of the pair of insulators partially overlap. The motor stator of claim 5, wherein the fixing bolt is a rivet. The motor stator of any of claims 1 to 4, wherein the fixing bolt is a rivet.