Structure for inner buckle of motor stator sheath

Abstract

The utility model discloses a structure used for a motor stator sheath inner buckle, and relates to the motor structure technology field, the structure comprises a stator iron core, the end portion of the stator iron core is detachably provided with two skeletons, the two skeletons are symmetrically arranged at two ends of the stator iron core, the top portions of the skeletons are connected with a sleeve cover in a clamping manner, and the sleeve cover is connected with the stator iron core in a clamping manner. A plurality of positioning grooves are formed in the stator iron core, the plurality of positioning grooves are arranged at equal intervals, coils are arranged in the positioning grooves, insulation paper is arranged among the plurality of coils, and a terminal shell is fixedly mounted on the outer side of the stator iron core. The coil damage risk can be effectively reduced, and the motor reliability is improved.

Description

Technical Field

[0001] This utility model belongs to the field of motor structure, specifically relating to a structure for the inner fastening of the motor stator sheath. Background Technology

[0002] During the manufacturing and operation of motor stator windings, flying wires (such as end transition wires, phase connection wires, etc.) are prone to friction with surrounding structures due to assembly errors, mechanical vibration or electromagnetic force, which can lead to damage to the copper wire insulation layer, and in turn cause short circuits, partial discharge or even motor failure.

[0003] In existing technologies, protective measures mostly rely on binding and fixing (such as nylon cable ties) or covering with insulating adhesive, but these methods have the following drawbacks:

[0004] Binding and fixing: Long-term vibration can easily lead to stress concentration at the binding points, accelerating insulation wear;

[0005] Curing of insulating adhesive: makes maintenance difficult and may hinder heat dissipation;

[0006] - Rigid guard plate: Metal or plastic guard plate is in direct contact with copper wire, and there is still a risk of friction.

[0007] Therefore, we propose a structure for the inner fastening of the motor stator sleeve. Utility Model Content

[0008] This invention provides a structure for the inner fastening of the motor stator sheath, in order to solve the technical problems mentioned in the background art.

[0009] To solve the above-mentioned technical problems, this utility model provides a structure for the inner buckle of a motor stator sleeve, including a stator core, with a skeleton detachably installed at the end of the stator core. Two skeletons are provided and symmetrically arranged at both ends of the stator core. A cover is snapped onto the top of the skeleton. A positioning groove is opened inside the stator core. Multiple positioning grooves are provided and are equidistantly arranged. A coil is provided in the positioning groove. Insulating paper is provided between the multiple coils. A terminal housing is fixedly installed on the outside of the stator core.

[0010] Preferably, the skeleton is integrally injection molded from PBT resin material, the skeleton is ring-shaped, and a constraint plate is fixedly installed on the inner side of the skeleton. Multiple constraint plates are provided and arranged in an array. A limiting plate is fixedly installed on the outer side of the constraint plate.

[0011] Preferably, the skeleton is integrally injection molded from PBT resin material, the skeleton is ring-shaped, and a constraint plate is fixedly installed on the inner side of the skeleton. Multiple constraint plates are provided and arranged in an array. A limiting plate is fixedly installed on the outer side of the constraint plate.

[0012] Preferably, the stator core end face is provided with positioning holes, and there are multiple positioning holes arranged in an array. The frame is fixedly installed with positioning shafts at positions corresponding to the positioning holes, and the positioning shafts are transitionally fitted with the positioning holes.

[0013] Preferably, a spring buckle is fixedly installed on the inner side of the cover, and multiple spring buckles are arranged in an array. The inner wall of the frame is provided with a slot, and the spring buckle engages with the slot.

[0014] Preferably, the spring buckle is T-shaped and the end of the spring buckle has a protruding structure. The top of the cover is provided with heat dissipation holes, and there are multiple heat dissipation holes, which are arranged at equal intervals.

[0015] This invention has the following advantages over the prior art:

[0016] This utility model discloses a structure for the inner fastening of a motor stator sleeve. During installation, the positioning shaft of the frame is inserted into the positioning hole of the stator core to fix the frame to the stator core. A constraint plate is provided on the inner side of the fixing, and the constraint plates on both sides can limit the two ends of the coil. The constraint plates are arranged in a curved surface to effectively prevent wear on the coil. The constraint plates are provided with equidistant insulating guide grooves and arc-shaped channels to limit the displacement of the flying wire, which can effectively protect the coil insulation.

[0017] This utility model discloses a structure for the inner fastening of a motor stator sleeve. The top of the frame is provided with a cover. By inserting the spring clip on the inner side of the cover into the slot on the inner side of the frame, the frame and the cover can be fixed. The spring clip is T-shaped and the end of the spring clip has a protruding structure to protect the coil and prevent external mechanical damage and environmental influence. The inner fastening structure ensures that the coil has no direct contact with the external structure. While ensuring mechanical strength, it can effectively reduce the risk of coil damage and improve the reliability of the motor. At the same time, the top of the cover is provided with heat dissipation holes to quickly dissipate the heat inside. Attached Figure Description

[0018] Figure 1 This is a structural diagram of a structure for an inner fastener of a motor stator sleeve according to the present invention;

[0019] Figure 2 This is an exploded structural diagram of a structure for an inner buckle of a motor stator sleeve according to the present invention;

[0020] Figure 3 This is a structural diagram of the skeleton in the structure for the inner buckle of the motor stator sheath of this utility model;

[0021] Figure 4 This is a structural diagram of a stator core for use in the inner fastening of a motor stator sleeve according to the present invention;

[0022] The following are the labels in the diagram: 1. Stator core; 2. Frame; 3. Terminal housing; 4. Cover; 5. Slot; 6. Spring clip; 7. Limiting plate; 8. Constraint plate; 9. Insulation guide groove; 10. Positioning hole; 11. Insulation paper; 12. Coil. Detailed Implementation

[0023] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0024] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0025] Please see Figure 1-4 This utility model provides a technical solution: a structure for the inner buckle of a motor stator sheath, including a stator core 1, a frame 2 detachably installed at the end of the stator core 1, two frames 2 are provided, the two frames 2 are symmetrically arranged at both ends of the stator core 1, a cover 4 is snapped onto the top of the frame 2, a positioning groove is opened inside the stator core 1, a plurality of positioning grooves are provided, the plurality of positioning grooves are equidistantly arranged, a coil 12 is provided in the positioning groove, insulating paper 11 is provided between the plurality of coils 12, and a terminal housing 3 is fixedly installed on the outside of the stator core 1.

[0026] Furthermore, the skeleton 2 is injection molded from PBT resin material in one piece. The skeleton 2 is ring-shaped, and a constraint plate 8 is fixedly installed on the inner side of the skeleton 2. There are multiple constraint plates 8 arranged in an array, and a limiting plate 7 is fixedly installed on the outer side of the constraint plate 8.

[0027] Furthermore, the skeleton 2 is injection molded from PBT resin material in one piece. The skeleton 2 is ring-shaped, and a constraint plate 8 is fixedly installed on the inner side of the skeleton 2. There are multiple constraint plates 8 arranged in an array, and a limiting plate 7 is fixedly installed on the outer side of the constraint plate 8.

[0028] Furthermore, the stator core 1 has a positioning hole 10 on its end face. There are multiple positioning holes 10 arranged in an array. The frame 2 is fixedly installed with a positioning shaft at the corresponding position of the positioning hole 10. The positioning shaft and the positioning hole 10 are transitionally fitted.

[0029] Furthermore, a spring clip 6 is fixedly installed on the inner side of the cover 4. Multiple spring clips 6 are provided and arranged in an array. A slot 5 is opened on the inner wall of the frame 2, and the spring clip 6 engages with the slot 5.

[0030] Furthermore, the spring clip 6 is T-shaped, and the end of the spring clip 6 has a protruding structure. The top of the cover 4 has heat dissipation holes, and there are multiple heat dissipation holes, which are arranged at equal intervals.

[0031] Working principle:

[0032] During installation, the positioning shaft of the broken skeleton 2 is inserted into the positioning hole 10 of the stator core 1 to fix the skeleton 2 to the stator core 1. A constraint plate 8 is provided on the inner side of the fixation. The constraint plates 8 on both sides can limit the two ends of the coil 12. The constraint plates 8 are arranged in a curved surface to effectively prevent wear on the coil 12. The constraint plates 8 are provided with equidistant insulating guide grooves 9. The arc-shaped channel restricts the displacement of the flying wire and can effectively protect the insulation of the coil 12. A cover 4 is provided on the top of the skeleton 2. By inserting the spring buckle 6 on the inner side of the cover 4 into the slot 5 on the inner side of the skeleton 2, the skeleton 2 can be fixed to the cover 4. The spring buckle 6 is T-shaped and the end of the spring buckle 6 has a protruding structure to protect the coil 12 and prevent external mechanical damage and environmental influence. Through the inner buckling structure, it is ensured that the coil 12 has no direct contact with the external structure. While ensuring mechanical strength, it can effectively reduce the risk of damage to the coil 12 and improve the reliability of the motor. At the same time, the top of the cover 4 is provided with heat dissipation holes to quickly dissipate the heat inside.

[0033] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A structure for inner fastening of motor stator sheath, comprising a stator core (1), characterized in that: The stator core (1) is detachably mounted with a frame (2) at its end. There are two frames (2), which are symmetrically arranged at both ends of the stator core (1). A cover (4) is snapped onto the top of the frame (2). The stator core (1) has a positioning groove inside. There are multiple positioning grooves, which are arranged at equal intervals. A coil (12) is provided in the positioning groove. Insulating paper (11) is provided between the multiple coils (12). A terminal housing (3) is fixedly installed on the outside of the stator core (1).

2. The structure for the inner fastening of a motor stator sleeve according to claim 1, characterized in that, The skeleton (2) is integrally molded from PBT resin material. The skeleton (2) is ring-shaped, and a constraint plate (8) is fixedly installed on the inner side of the skeleton (2). There are multiple constraint plates (8), and the multiple constraint plates (8) are arranged in an array. A limiting plate (7) is fixedly installed on the outer side of the constraint plate (8).

3. The structure for the inner fastening of a motor stator sleeve according to claim 2, characterized in that, The constraint plate (8) is provided with an insulating guide groove (9), and there are multiple insulating guide grooves (9) arranged at equal intervals.

4. The structure for the inner fastening of a motor stator sleeve according to claim 1, characterized in that, The stator core (1) has a positioning hole (10) on its end face. There are multiple positioning holes (10) arranged in an array. The frame (2) is fixedly installed with a positioning shaft at the corresponding position of the positioning hole (10). The positioning shaft is transitionally fitted with the positioning hole (10).

5. The structure for the inner fastening of a motor stator sleeve according to claim 1, characterized in that, Spring buckles (6) are fixedly installed on the inner side of the cover (4). There are multiple spring buckles (6) arranged in an array. The inner wall of the frame (2) is provided with a slot (5), and the spring buckles (6) are engaged with the slot (5).

6. The structure for the inner fastening of a motor stator sleeve according to claim 5, characterized in that, The spring buckle (6) is T-shaped and the end of the spring buckle (6) has a protruding structure. The top of the cover (4) is provided with heat dissipation holes. There are multiple heat dissipation holes, and the multiple heat dissipation holes are arranged at equal intervals.

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