Motor stator structure

Abstract

The utility model discloses a motor stator structure, comprising a stator core and a stator winding installed in the stator core, the upper side of the stator core is provided with a connecting line, the other end of the connecting line is provided with a terminal shell, the upper side of the stator core is provided with a resin skeleton a, and the resin skeleton a is provided with a resin core. A resin framework b is arranged on the lower side of the stator iron core, a traditional back-off type installation mode is improved into an existing plug-in type installation mode, in the assembling and using processes, the assembling process can be simplified, the assembling time is shortened, the complexity is reduced, the stator is easier to disassemble and replace due to the plug-in type design, and the assembling efficiency is improved. By means of the structure, subsequent maintenance and inspection are facilitated, the downtime of equipment is shortened, better mechanical strength and stability can be provided due to the insertion type structure, noise and vibration during operation can be reduced, and the damage risk caused by vibration or impact is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field related to motor stators, and particularly relates to a motor stator structure. Background Technique

[0002] As an important component of an electric motor, the stator is also an indispensable part of an electric compressor. The stator assembly consists of a stator core, a resin skeleton, a stator winding, insulating slot paper, sleeves, etc. The main function of the stator is to generate a rotating magnetic field after being powered on, drive the rotor to rotate and output torque for driving. However, during the assembly process of the stator winding, the traditional inverted buckling installation method will generate relatively large noise and vibration during the subsequent operation of the motor. Content of the Utility Model

[0003] The purpose of the utility model is to provide a motor stator structure to solve the problem of relatively large noise and vibration generated by the traditional inverted buckling installation method during the subsequent operation of the motor as mentioned in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A motor stator structure includes a stator core and a stator winding installed inside the stator core;

[0005] A connecting wire is arranged on the upper side of the stator core;

[0006] The other end of the connecting wire is provided with a terminal shell;

[0007] A resin skeleton a is arranged on the upper side of the stator core, and a resin skeleton b is arranged on the lower side of the stator core;

[0008] A plurality of blocks are equidistantly and fixedly connected to the inner part of the outer wall at the lower end of the resin skeleton a, a plurality of through holes that penetrate up and down are equidistantly formed in the inner part of the outer wall at the upper end of the stator core, and a plurality of upward-opening grooves are equidistantly formed in the outer wall at the upper end of the resin skeleton b.

[0009] Preferably, the outer walls around the plurality of blocks are mutually attached to the inner walls around the through holes, and the plurality of through holes can all allow the stator winding to be inserted.

[0010] Preferably, the inner walls around the plurality of grooves are mutually attached to the outer walls around the stator winding, and the sizes of the plurality of through holes and the grooves are the same.

[0011] Preferably, a square hole is formed in the outer wall at the rear end of the terminal shell for the connecting wire to be inserted and fixed, and a plurality of bosses are equidistantly and fixedly connected to the outer wall at the upper end of the terminal shell for the subsequent installation of connection terminals.

[0012] Preferably, a plurality of positioning holes are equidistantly formed in the inner part of the outer wall at the upper end of the stator core for the insertion of the stator winding, and a coil groove is arranged in the inner part of the outer wall at the upper end of the resin skeleton a to guide the direction of the current-carrying wire.

[0013] Preferably, two buckles are fixed on the outer wall at the upper end of the resin skeleton a to limit the position of the terminal shell, and two buckle positions are arranged on one side of the terminal shell for the buckles on the resin skeleton a to be buckled.

[0014] Preferably, the other end of the connecting wire is provided with a connecting terminal for insertion into the square hole, and a protrusion is arranged inside the square hole to clamp the externally inserted terminal.

[0015] Compared with the prior art, the utility model provides a motor stator structure, which has the following beneficial effects:

[0016] By changing the traditional inverted buckle installation method to the existing insertion installation method, during the assembly and use process, the assembly process can be simplified, the assembly time and complexity are reduced, and the insertion design enables the stator to be more easily disassembled and replaced, facilitating subsequent maintenance and inspection, reducing the downtime of the equipment. Moreover, the insertion structure can provide better mechanical strength and stability, and can reduce the noise and vibration during operation, reducing the risk of damage caused by vibration or impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of a motor stator structure of the utility model.

[0018] Figure 2 It is a schematic structural diagram of the terminal shell of the utility model.

[0019] Figure 3 It is a schematic structural diagram of the connecting wire of the utility model.

[0020] Figure 4 It is a schematic structural diagram of the resin skeleton a of the utility model.

[0021] Figure 5 It is a schematic structural diagram of the stator winding of the utility model.

[0022] Figure 6 It is a schematic structural diagram of the stator core of the utility model.

[0023] Figure 7 It is a schematic structural diagram of the resin skeleton b of the utility model.

[0024] In the figure: 1. Terminal housing; 2. Connecting terminal; 3. Connecting wire; 4. Resin skeleton a; 5. Stator core; 6. Resin skeleton b; 7. Square hole; 8. Boss; 9. Stator winding; 10. Positioning hole; 11. Clamping block; 12. Through hole; 13. Card slot. Specific embodiments

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] The present invention provides a motor stator structure as shown in Figures 1-7 which includes a stator core 5 and a stator winding 9 installed inside the stator core 5;

[0027] A connecting wire 3 is arranged on the upper side of the stator core 5;

[0028] The other end of the connecting wire 3 is provided with a terminal housing 1;

[0029] A resin skeleton a 4 is arranged on the upper side of the stator core 5, and a resin skeleton b 6 is arranged on the lower side of the stator core 5. In an AC motor, the stator core 5 generates a rotating magnetic field through the energized stator winding 9 to provide power for the operation of the motor. The connection between the connecting wire 3 and the terminal housing 1 provides a connection with an external power supply, while ensuring the safety and stability of the contact point. The resin skeleton a 4 and the resin skeleton b 6 clamp and limit the positions of the stator core 5 and the stator winding 9, improving the overall strength and reducing the influence of mechanical vibration on the operation of the motor;

[0030] A plurality of clamping blocks 11 are fixedly connected at equal intervals inside the outer wall of the lower end of the resin skeleton a 4. A plurality of through holes 12 that penetrate up and down are opened at equal intervals inside the outer wall of the upper end of the stator core 5. A plurality of card slots 13 with upward openings are opened at equal intervals on the outer wall of the upper end of the resin skeleton b 6. When assembling the stator, the stator core 5 can be first placed on the resin skeleton b 6, and then the stator winding 9 is placed in the plurality of through holes 12 opened inside the stator core 5. The stator winding 9 will drop into the card slots 13 opened on the upper side of the resin skeleton b 6, thereby pre-positioning the position of the stator core 5. Then, the resin skeleton a 4 is placed on the upper side of the stator core 5, and the clamping blocks 11 at the lower end of the resin skeleton a 4 will be inserted into the through holes 12, thus completing the assembly of part of the stator.

[0031] Such as Figure 4 、 Figure 6 and Figure 7As shown, the outer walls around multiple said clamping blocks 11 are in mutual contact with the inner walls around the through openings 12. Multiple said through openings 12 can all allow the stator windings 9 to be inserted. The inner walls around multiple said card slots 13 are in mutual contact with the outer walls around the stator windings 9. Multiple said through openings 12 and card slots 13 are of the same size.

[0032] The clamping blocks 11 can be inserted into the through openings 12 internally, thereby preliminarily restricting the position of the resin skeleton a4 on the stator core 5. The through openings 12 can allow the stator windings 9 to be inserted and provide the installation positions of the stator windings 9. The through openings 12 and card slots 13 are of the same size, enabling the stator windings 9 to be stably inserted into the stator core 5 and the resin skeleton b6 internally to restrict the positions of the stator core 5 and the resin skeleton b6.

[0033] As Figure 2 shown, a square hole 7 is provided in the outer wall at the rear end of the terminal housing 1 for the connection wire 3 to be inserted and fixed. A plurality of bosses 8 are fixedly connected at equal intervals on the outer wall at the upper end of the terminal housing 1 for the subsequent installation of terminal posts.

[0034] After the square hole 7 is provided, the connection wire 3 can be inserted into the terminal housing 1 internally, avoiding the occurrence of the situation that the connection wire 3 loosens and falls off. By providing the bosses 8, during the subsequent assembly of the terminal posts, they can be directly inserted into the bosses 8 for position restriction.

[0035] As Figure 4 and Figure 6 shown, a plurality of positioning holes 10 are provided at equal intervals inside the outer wall at the upper end of the stator core 5 for the insertion of the stator windings 9. A coil groove is provided inside the outer wall at the upper end of the resin skeleton a4 to guide the direction of the wire passing through.

[0036] A plurality of positioning holes 10 are provided on the stator core 5 to restrict the position of the stator windings 9, reducing the core loss caused by the rotating magnetic field in the stator core 5. The coil groove provided on the resin skeleton a4 can effectively protect the insulation performance of the copper wire and leave pre-binding holes, facilitating the automatic fixation of the lead-out wire device of the stator windings 9.

[0037] As Figure 2 and Figure 4 shown, two buckles are fixed on the outer wall at the upper end of the resin skeleton a4 to restrict the position of the terminal housing 1 and insulate the stator windings 9 and the stator core 5 from each other. Two buckle positions are provided on one side of the terminal housing 1 for the buckles on the resin skeleton a4 to be buckled.

[0038] When restricting the position of the terminal housing 1, the terminal housing 1 can be clamped on the buckles fixed on the resin skeleton a4 to restrict the position of the terminal housing 1 and effectively fasten the terminal housing 1.

[0039] As Figure 1 and Figure 2As shown, the other end of the connecting wire 3 is provided with a connecting terminal 2 for inserting into the inner part of the square hole 7, and a protrusion is arranged inside the square hole 7 for clamping the externally inserted terminal.

[0040] When the connecting terminal 2 at one end of the connecting wire 3 is inserted into the inner part of the square hole 7, it will cooperate and be clamped with the protrusion inside the square hole 7, so that the connecting wire 3 is not easily detached. At the same time, a sealing gasket is also arranged inside the terminal housing 1 to prevent liquid or clothing from entering the gap.

[0041] The implementation principle of this embodiment is as follows: In an AC motor, the stator core 5 generates a rotating magnetic field through the energized stator winding 9 to provide power for the operation of the motor. The connection between the connecting wire 3 and the terminal housing 1 provides the connection with the external power supply, and at the same time ensures the safety and stability of the contact point. The resin skeleton a4 and the resin skeleton b6 are used to clamp and limit the positions of the stator core 5 and the stator winding 9, improving the overall strength and reducing the influence of mechanical vibration on the operation of the motor. When assembling the stator, the stator core 5 can be first placed on the resin skeleton b6, and then the stator winding 9 is placed in the multiple through holes 12 opened inside the stator core 5. The stator winding 9 will fall into the inner part of the card slot 13 opened on the upper side of the resin skeleton b6, thereby pre-positioning the position of the stator core 5. Subsequently, the resin skeleton a4 is placed on the upper side of the stator core 5, and the clamping block 11 at the lower end of the resin skeleton a4 will be inserted into the through hole 12, thus completing the assembly of part of the stator.

[0042] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A motor stator structure, comprising a stator core (5) and a stator winding (9) installed inside the stator core (5); A connecting wire (3) is arranged on the upper side of the stator core (5); The other end of the connecting wire (3) is provided with a terminal shell (1); A resin skeleton a (4) is arranged on the upper side of the stator core (5), and a resin skeleton b (6) is arranged on the lower side of the stator core (5); It is characterized in that: A plurality of blocks (11) are fixedly connected at equal intervals inside the outer wall of the lower end of the resin skeleton a (4), a plurality of through holes (12) penetrating up and down are opened at equal intervals inside the outer wall of the upper end of the stator core (5), and a plurality of upward-opening slots (13) are opened at equal intervals on the outer wall of the upper end of the resin skeleton b (6).

2. The stator structure of an electric machine according to claim 1, characterized in that: The outer walls around the plurality of blocks (11) are in mutual fit with the inner walls around the through holes (12), and the plurality of through holes (12) can all be inserted into the stator winding (9).

3. The stator structure of an electric machine according to claim 1, characterized in that: The inner walls around the plurality of slots (13) are in mutual fit with the outer walls around the stator winding (9), and the plurality of through holes (12) and slots (13) are of the same size.

4. A stator structure of an electric machine according to claim 1, characterized in that: A square hole (7) is opened on the outer wall of the rear end of the terminal shell (1) for inserting and fixing the connecting wire (3), and a plurality of bosses (8) are fixedly connected at equal intervals on the outer wall of the upper end of the terminal shell (1) for installing subsequent terminal posts.

5. A stator structure of an electric machine according to claim 1, wherein: A plurality of positioning holes (10) are opened at equal intervals inside the outer wall of the upper end of the stator core (5) for inserting the stator winding (9), and a coil groove is arranged inside the outer wall of the upper end of the resin skeleton a (4) to guide the running direction of the current-carrying wire.

6. The stator structure of an electric machine according to claim 1, wherein: Two buckles are fixed on the outer wall of the upper end of the resin skeleton a (4) to limit the position of the terminal shell (1), and two buckle positions are arranged on one side of the terminal shell (1) for the buckles on the resin skeleton a (4) to be buckled.

7. A stator structure of an electric machine according to claim 1, wherein: The other end of the connecting wire (3) is provided with a connecting terminal (2) to be inserted into the square hole (7) internally, and a protrusion is arranged inside the square hole (7) to clamp the externally inserted terminal.

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