Integrated plastic package stator structure

Abstract

The utility model discloses an integrated plastic package stator structure, which belongs to the technical field of motor plastic package structures and comprises a stator insulation framework. According to the utility model, through the arrangement of the wire clamp assembly, the wire clamp body and the wire clamp cover body are cooperatively used and are cooperatively fixed with the stator insulation framework, a power line is effectively pre-fixed before plastic packaging of the stator, and the outgoing line is prevented from being broken and scalded by a die and high temperature when the position is not fixed in the injection molding process; through the arrangement of the insulating high-temperature-resistant nylon insert, the contact between a plastic package material and water can be effectively isolated, and the potential safety hazard that the motor seeps into a stator coil due to the fact that the plastic package stator is subjected to shrinkage cavity material shortage caused by the change of an injection molding environment and parameters or the BMC material is not sufficiently cured is avoided; according to the device, the nylon insert adopts a retaining flange and reinforcing rib structure, and the design of six grooves can effectively and firmly combine the nylon insert and the plastic package stator into a whole.

Description

Technical Field

[0001] The utility model relates to the technical field of motor plastic sealing structures, and specifically relates to a structure of an integrated plastic-sealed stator. Background Art

[0002] In the traditional stator winding coil, it is exposed outside. Once in an extreme environment, safety hazards such as short circuit and combustion are extremely likely to occur. And the way to install and fix the stator is to cooperate with end covers made of iron and aluminum materials, with many parts and complex assembly. And for the traditional plastic-sealed motor structure: most of them are that the stator is plastic-sealed as a whole, and no separate anti-leakage treatment is added to the positions with sealing requirements. When the injection molding environment and parameters change, resulting in shrinkage holes and material shortage in the plastic-sealed stator, or the BMC material is not fully cured, it will cause the safety hazard of water seeping into the stator coil. Therefore, we need to propose a structure of an integrated plastic-sealed stator. Content of the Utility Model

[0003] The purpose of the utility model is to provide a structure of an integrated plastic-sealed stator, which has the advantages of good sealing performance and high strength, so as to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the utility model provides a structure of an integrated plastic-sealed stator, including a stator insulation skeleton. One side of the stator insulation skeleton is fixedly connected with a lead wire. One side of the stator insulation skeleton and at the corresponding position of the lead wire is provided with a wire clip assembly for the lead wire. The center of the top of the stator insulation skeleton is provided with a nylon insert for sealing and waterproofing.

[0005] Preferably, the wire clip assembly includes a wire clip body installed on one side of the stator insulation skeleton through bolts. The top of the wire clip body is provided with a wire clip cover body. A clamping assembly is arranged between the wire clip cover body and the wire clip body. The wire clip cover body is clamped and fixed on the top of the wire clip body through the clamping assembly.

[0006] Preferably, the clamping assembly includes two groups of clamping columns fixedly installed on the top of the wire clip body. Corresponding to the clamping columns on the surface of the wire clip cover body are provided clamping holes. The top ends of the clamping columns are clamped with the inner walls of the clamping holes.

[0007] Preferably, the inner sides of the wire clip body and the wire clip cover body are both provided with through grooves adapted to the lead wire. The surface of the lead wire is attached to the inner wall of the through groove.

[0008] Preferably, three groups of limiting columns are fixedly installed in the inner cavity of the nylon insert. Reinforcing ribs are fixedly installed on the surface of the limiting columns. One side of the reinforcing rib away from the limiting column is fixedly connected with the inner cavity of the nylon insert.

[0009] Preferably, the surface of the nylon insert is provided with grooves. There are six groups of the grooves, and the six groups of grooves are arranged at equal intervals in a ring on the surface of the nylon insert.

[0010] Preferably, a retaining flange is integrally formed at the edge of the outer circle of the nylon insert.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] Through the arrangement of the wire clamp assembly, the wire clamp body and the wire clamp cover body are used in cooperation and are fixed in cooperation with the stator insulating skeleton, effectively pre-fixing the power cord before plastic encapsulating the stator, preventing the lead wire from being displaced during the injection molding process and being broken or scalded by the mold and high temperature; through the arrangement of the nylon insert with insulation and high temperature resistance, it can effectively isolate the contact between the plastic encapsulating material and water, avoiding the shrinkage holes and material shortage of the plastic encapsulated stator due to the change of the injection molding environment and parameters, or the insufficient curing of the BMC material, which will cause the safety hazard of the motor seeping water into the stator coil. The retaining flange and reinforcing rib structure adopted by the nylon insert in this device, as well as the design of six grooves, can effectively combine the nylon insert and the plastic encapsulated stator into a whole. Description of the Drawings

[0013] Figure 1 is a structural schematic diagram of the present utility model;

[0014] Figure 2 is a connection structural schematic diagram of the nylon insert and the stator insulating skeleton of the present utility model;

[0015] Figure 3 is a structural schematic diagram of the nylon insert of the present utility model;

[0016] Figure 4 is a structural schematic diagram of the wire clamp body of the present utility model;

[0017] Figure 5 is a structural schematic diagram of the wire clamp cover body of the present utility model.

[0018] In the figure: 1, stator insulating skeleton; 2, lead wire; 3, nylon insert; 4, wire clamp body; 5, wire clamp cover body; 6, clamping post; 7, clamping hole; 8, through groove; 9, limiting post; 10, reinforcing rib; 11, groove; 12, retaining flange. Detailed Embodiment

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figures 1 - 5 , the present utility model provides a structure of an integrated plastic-sealed stator, including a stator insulation skeleton 1. One side of the stator insulation skeleton 1 is fixedly connected with a lead wire 2. A wire clamp assembly for the lead wire 2 is arranged at a position corresponding to the lead wire 2 on one side of the stator insulation skeleton 1. The wire clamp assembly includes a wire clamp body 4 installed on one side of the stator insulation skeleton 1 by bolts. A wire clamp cover 5 is arranged on the top of the wire clamp body 4. A clamping assembly is arranged between the wire clamp cover 5 and the wire clamp body 4. The wire clamp cover 5 is clamped and fixed on the top of the wire clamp body 4 through the clamping assembly. The clamping assembly includes two groups of clamping columns 6 fixedly installed on the top of the wire clamp body 4. Clamping holes 7 are opened on the surface of the wire clamp cover 5 at positions corresponding to the clamping columns 6. The top end of the clamping column 6 is clamped with the inner wall of the clamping hole 7.

[0021] Through the setting of the wire clamp assembly, it is fixedly combined with the stator insulation skeleton 1, and effectively pre-fixes the power cord before plastic-sealing the stator, preventing the lead wire 2 from being displaced during the injection molding process and being broken or scalded by the mold and high temperature. Specifically, when fixing the lead wire 2, the user can first install the wire clamp body 4 on the stator insulation skeleton 1 through bolts, and then clamp the lead wire 2 into the through groove 8 on the surface of the wire clamp body 4. Thereafter, the user can clamp the wire clamp cover 5 on the top of the wire clamp body 4 to fix the lead wire 2. When installing the wire clamp cover 5, the user can align the clamping holes 7 on the surface of the wire clamp cover 5 with the positions of the clamping columns 6 on the surface of the wire clamp body 4, and then press the wire clamp cover 5 towards the wire clamp body 4. When the bottom of the wire clamp cover 5 fits with the top of the wire clamp body 4, the clamping column 6 will be clamped into the inner cavity of the clamping hole 7, thereby achieving the purpose of clamping and fixing the wire clamp cover 5 on the top of the wire clamp body 4, and further fixing the position of the lead wire 2.

[0022] In addition, through grooves 8 adapted to the lead wire 2 are opened on the inner sides of the wire clamp body 4 and the wire clamp cover 5. The surface of the lead wire 2 fits with the inner wall of the through groove 8. Through the setting of the through groove 8, multiple groups of lead wires 2 can be separately fixed. Moreover, through the setting of the through groove 8, an installation space can also be provided for the lead wire 2, preventing the wire clamp body 4 and the wire clamp cover 5 from not being able to be completely clamped and fixed together due to the fixation of the lead wire 2.

[0023] Preferably, a nylon insert 3 for sealing and waterproofing is provided at the top center of the stator insulation frame 1, three groups of limiting columns 9 are fixedly installed in the inner cavity of the nylon insert 3, and reinforcing ribs 10 are fixedly installed on the surface of the limiting columns 9. The side of the reinforcing ribs 10 away from the limiting columns 9 is fixedly connected to the inner cavity of the nylon insert 3, and grooves 11 are provided on the surface of the nylon insert 3. There are six groups of grooves 11, and the six groups of grooves 11 are equidistantly arranged in a ring shape on the surface of the nylon insert 3, and a retaining flange 12 is integrally formed at the edge of the outer ring of the nylon insert 3.

[0024] In this embodiment, by setting the insulating and high temperature resistant nylon insert 3, the contact between the plastic sealing material and water can be effectively isolated, and the plastic sealing stator can be prevented from shrinking due to the change of the injection molding environment and parameters, resulting in the lack of material in the plastic sealing stator, or the insufficient curing of the BMC material, which will cause the motor to seep into the stator coil. Safety hazards. In addition, reinforcing ribs 10 are installed on the surface of the limiting column 9, which can improve the overall strength of the nylon insert 3 and ensure the verticality of the three groups of limiting columns 9. Through the setting of the grooves 11, six groups of grooves 11 are opened on the outer ring of the nylon insert 3. When the stator is plastic sealed, the plastic sealing material can flow into the inner cavity of the nylon insert 3 faster and more, so that the plastic sealing stator and the nylon insert 3 are more complete in integrity, better in wrapping, and stronger. Through the setting of the stop flange 12, the nylon insert 3 can be limited, and the nylon insert 3 can be prevented from moving up and out due to excessive motor temperature or external force pulling.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated plastic-sealed stator structure, comprising a stator insulation frame (1), characterized in that: A lead wire (2) is fixedly connected to one side of the stator insulation frame (1), a wire clamp assembly for clamping the lead wire (2) is provided on one side of the stator insulation frame (1) and at a position corresponding to the lead wire (2), and a nylon insert (3) for sealing and waterproofing is provided at the top center of the stator insulation frame (1).

2. The structure of an integrated plastic-sealed stator according to claim 1, characterized in that: The wire clamp assembly comprises a wire clamp body (4) mounted on one side of a stator insulation frame (1) by means of bolts, a wire clamp cover body (5) being arranged on the top of the wire clamp body (4), a clamp assembly being arranged between the wire clamp cover body (5) and the wire clamp body (4), and the wire clamp cover body (5) being clamped and fixed to the top of the wire clamp body (4) by means of the clamp assembly.

3. The structure of an integrated plastic-sealed stator according to claim 2, characterized in that: The clamping assembly comprises two groups of clamping columns (6) fixedly mounted on the top of the wire clamp body (4); a clamping hole (7) is provided on the surface of the wire clamp cover (5) at a position corresponding to the clamping column (6); and the top end of the clamping column (6) is clamped with the inner wall of the clamping hole (7).

4. The structure of an integrated plastic-sealed stator according to claim 2, characterized in that: A through groove (8) adapted to the lead wire (2) is provided on the inner sides of the wire clamp body (4) and the wire clamp cover (5), and the surface of the lead wire (2) is in contact with the inner wall of the through groove (8).

5. The structure of an integrated plastic-sealed stator according to claim 1, characterized in that: Three groups of limiting columns (9) are fixedly installed in the inner cavity of the nylon insert (3), and reinforcing ribs (10) are fixedly installed on the surface of the limiting columns (9). The side of the reinforcing ribs (10) away from the limiting columns (9) is fixedly connected to the inner cavity of the nylon insert (3).

6. The structure of an integrated plastic-sealed stator according to claim 1, characterized in that: The surface of the nylon insert (3) is provided with grooves (11), and the grooves (11) are provided in six groups, and the six groups of grooves (11) are arranged in a ring shape and are equidistantly arranged on the surface of the nylon insert (3).

7. The structure of an integrated plastic-sealed stator according to claim 1, characterized in that: A stop flange (12) is integrally formed at the edge of the outer ring of the nylon insert (3).

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