Stator insulation structure of starting motor

Abstract

A stator insulation structure of a starting motor comprises a stator shell and a plurality of T-shaped structure pole shoes, installation holes are formed in the positions, where the pole shoes are installed, of the stator shell, threaded holes are formed in the shaft ends of wrapping posts of the pole shoes, T-shaped insulation frameworks of the pole shoes are arranged on the wrapping post sides of the pole shoes, and coils formed through winding are arranged on the T-shaped insulation frameworks in a sleeving mode. The pole shoes sleeved with the coils are arranged on the inner wall of the stator shell, and screws penetrate through the mounting holes to be fixedly connected with the threaded holes in the pole shoes, so that the coils are pressed and fixed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of starting motor, concretely relates to a starting motor's stator insulation structure. BACKGROUND

[0002] The stator of the existing starting motor is first welded with the pole shoe in the inner wall of the stator shell through the special welding equipment, and after the pole shoe is welded in the inner wall of the stator shell, the special coating equipment is still needed to spray the epoxy insulation powder to the inner wall of the stator shell and the pole shoe to prevent the short circuit of the coil and the stator shell, then the machine tool is used to process the stop opening, the outer diameter of the stator shell and the inner diameter of the pole shoe, and finally the special winding equipment is used to wind the coil on the pole shoe of the stator, and the assembly of the stator of the starting motor is finally completed. However, this stator assembly needs to use the special welding equipment, the special coating equipment and the special winding equipment, the prices of these equipment are expensive, and can only be used for the assembly of this stator, the applicability is low, the production cost in the early stage is increased, and meanwhile the stator assembly steps are complicated and the working efficiency is low. SUMMARY

[0003] In view of the above problems, the utility model provides a starting motor's stator insulation structure, which is characterized by being provided with an insulating T-shaped insulation framework to ensure the insulation of the coil and the stator shell.

[0004] The technical scheme of the utility model is as follows: a starting motor's stator insulation structure, comprising a stator shell and a plurality of T-shaped pole shoes, the stator shell is provided with mounting holes at the positions where the pole shoes are installed, threaded holes are arranged at the shaft ends of the winding columns of the pole shoes, a T-shaped insulation framework is arranged on the side of the winding column of the pole shoe, the coil is sleeved on the T-shaped insulation framework, the pole shoe with the sleeved coil is arranged on the inner wall of the stator shell, and the coil is fixed by screwing the mounting holes and the threaded holes of the pole shoe.

[0005] Preferably, a polyester film is attached to the inner wall of the stator shell.

[0006] Preferably, the T-shaped insulation framework is provided with a winding column hole in the middle, the winding column hole penetrates the T-shaped insulation framework, the length of the winding column hole is the same as the length of the winding column of the pole shoe, and after the T-shaped insulation framework is sleeved on the winding column of the pole shoe, the limiting piece of the T-shaped insulation framework is attached to the inner surface of the limiting part of the pole shoe.

[0007] Preferably, the T-shaped insulation framework is integrally formed by nylon material.

[0008] The utility model discloses a winding post of pole shoe is fixed through screw in the inner wall of stator, compared with prior art, need not special pole shoe welding equipment, special insulation powder coating equipment, lathe equipment, thus the demand of equipment is reduced greatly, and the demand of frock, clamp of corresponding equipment is reduced greatly, and the stator assembly step is reduced, and the stator assembly efficiency is improved greatly. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is the cross section schematic view of the stator of the utility model;

[0010] Figure 2 It is the structure schematic view of the stator of the utility model;

[0011] Figure 3 It is the cross section view of pole shoe of the utility model;

[0012] Figure 4 It is the structure schematic view of T type insulation framework of the utility model;

[0013] Figure 5 It is the structure schematic view of coil. PREFERRED EMBODIMENT

[0014] Referring to Figures 1 to 5 A stator insulation structure of starting motor, including a stator housing 1, a plurality of T type structure pole shoe 2, the inner wall of stator housing 1 is pasted with polyester film, by setting polyester film, further guarantee the insulation of coil 3 and stator housing 1. The position of each pole shoe 2 installation of stator housing 1 sets up mounting hole, the shaft end of the winding post 21 of each pole shoe 2 sets up screw hole, the T type insulation framework 5 of pole shoe is set up in the winding post 21 side of pole shoe 2, the T type insulation framework 5 is integrally formed by nylon material, guarantees good insulation. The middle part of T type insulation framework 5 is equipped with winding post hole, the winding post hole penetrates T type insulation framework 5, the length of winding post hole is same with the length of winding post 21 of pole shoe 2, after T type insulation framework 5 is set in the winding post 21 of pole shoe 2, the limiting piece of T type insulation framework 5 and the inner surface of limiting part 22 of pole shoe 2 are pasted, and such setting guarantees that T type insulation framework can be firmly set in pole shoe 2. The coil 3 of winding formation is set on T type insulation framework 5, and the pole shoe 2 with coil 3 is set on the inner wall of stator housing 1, is connected and fixed through screw 4 and the screw hole on pole shoe of mounting hole, and coil 3 is pressed and fixed.

[0015] The utility model discloses a stator is first separately winding coil 3, these coils can be wound with general common winding machine, then polyester film is pasted in the inner wall of stator casing 1, then T type insulation framework 5 is sleeved on pole shoe 2, and the coil 3 of winding is sleeved on T type insulation framework 5, finally through screw 4, pole shoe 2, T type insulation framework 5, coil 3 are fastened on the inner wall of stator casing 1, finally complete stator assembly. Compared with prior art, need not special pole shoe welding equipment, special insulation powder coating equipment, lathe equipment and special winding equipment, therefore the demand of equipment is reduced greatly, and the demand of frock, clamp of corresponding equipment is reduced greatly, and the stator assembly step is reduced, and the stator assembly efficiency is improved greatly.

[0016] The above only is the preferred embodiment of the utility model, and is not used to limit the utility model, and the person skilled in the art makes the change to the utility model without departing from the spirit of the utility model, and all fall into the protection scope of the utility model.

Claims

1. A stator insulation structure of a starting motor, comprising a stator housing (1) and a plurality of T-shaped pole shoes (2), characterized in that: The stator shell (1) is provided with a mounting hole for mounting each pole shoe (2), the winding column (21) of each pole shoe (2) is provided with a threaded hole at the shaft end, the pole shoe T-shaped insulation framework (5) is arranged on the winding column (21) side of the pole shoe (2), the coil (3) is sleeved on the T-shaped insulation framework (5), the pole shoe (2) with the coil (3) is arranged on the inner wall of the stator shell (1), and the coil (3) is fixed by screwing (4) through the mounting hole and the threaded hole on the pole shoe.

2. A stator insulation structure for a starting motor as defined in claim 1, characterized in that: The inner wall of the stator shell (1) is pasted with a polyester film.

3. A stator insulation structure for a starting motor as defined in claim 1, wherein: The T-shaped insulation framework (5) is provided with a winding column hole in the middle, the winding column hole penetrates through the T-shaped insulation framework (5), the length of the winding column hole is the same as the length of the winding column (21) of the pole shoe (2), the T-shaped insulation framework (5) is sleeved on the winding column (21) of the pole shoe (2), and the limiting piece of the T-shaped insulation framework (5) is attached to the inner surface of the limiting part (22) of the pole shoe (2).

4. A stator insulation structure for a starting motor as defined in claim 1, wherein: The T-shaped insulation framework (5) is integrally formed by nylon material.

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