Stator subassembly structure

Abstract

This utility model discloses a stator assembly structure, including: a stator ring; a segmented stator with an arc-shaped structure, the segmented stator being evenly distributed inside the stator ring with the center of the stator ring as the center, and semi-circular grooves being opened on both sides of the segmented stator, with two adjacent semi-circular grooves forming a circular hole; a limiting pressure ring, the limiting pressure ring being placed on one side of the segmented stator. The beneficial effects of this utility model are: two adjacent semi-circular grooves forming a circular hole, and the positioning rod on one side of the limiting pressure ring being inserted into the corresponding circular hole, can accurately position the segmented stator and prevent it from shifting during assembly and use. A limiting baffle is fixed to the inner wall of the middle of the fixing pressure plate. When the stator ring is assembled with the water pump housing, the fixing pressure plate is attached to the stator ring, and the limiting baffle is stuck in the cross groove at one end of the self-locking screw. The limiting pressure ring and the stator ring are pressed and fixed by the corresponding bolt inside the housing, and the limiting baffle is used to prevent the self-locking screw from loosening.

Description

Technical Field

[0001] This utility model relates to the field of water pump stator technology, specifically a stator assembly structure. Background Technology

[0002] The stator of a water pump is a component that works in conjunction with the rotor in an electric water pump. The current flowing through the stator generates a rotating magnetic field, which in turn causes the rotor to rotate. Changes in the stator's magnetic field are crucial to the pump's operation. As part of the pump, the stator, together with the rotor, converts mechanical energy into fluid pressure, propelling the fluid flow. Most stators currently in use are integrated structures. These integrated stators have complex geometries, which increases the manufacturing difficulty, especially when high-precision dimensional control and machining are required. Particularly in the fabrication of the stator's slots and air gaps, the processing equipment and techniques are highly demanding. Furthermore, the winding of coils within the complex slots inside the stator, which are often irregular, narrow, or have special shapes, makes the coil winding process even more cumbersome and significantly increases the manufacturing difficulty. Utility Model Content

[0003] The purpose of this invention is to provide a stator assembly structure to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a stator assembly structure, comprising:

[0005] Stator coil;

[0006] The segmented stator has an arc-shaped structure. The segmented stator is evenly distributed inside the stator ring with the center of the stator ring as the center. Semicircular grooves are opened on both sides of the segmented stator, and two adjacent semicircular grooves form a circular hole.

[0007] A limiting pressure ring is placed on one side of the segmented stator. A positioning rod corresponding to a circular hole is fixedly connected to one side of the limiting pressure ring. A self-locking screw with the stator ring thread is installed on one side of the limiting pressure ring.

[0008] A fixed pressure plate is placed on one side of the stator ring, and a limit baffle is fixed to the inner wall of the middle part of the fixed pressure plate to prevent the self-locking screws from loosening.

[0009] Preferably, the stator ring has an internal mounting groove, and a limiting ring for limiting the position of the segmented stator is fixed to one end of the mounting groove.

[0010] Preferably, one end of the segmented stator is provided with a limiting notch that cooperates with the limiting pressure ring.

[0011] Preferably, one end of the stator ring is provided with a limiting groove that cooperates with the limiting pressure ring.

[0012] Preferably, the limiting groove has a connecting threaded hole that mates with a self-locking screw.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: By combining multiple arc-shaped segmented stators, this modular design makes the processing of each segmented stator relatively simple, reducing processing difficulty and cost; at the same time, modularity also facilitates coil winding operations. Semi-circular grooves are opened on both sides of the segmented stator, and two adjacent semi-circular grooves form a circular hole. The positioning rod on one side of the limiting pressure ring is inserted into the corresponding circular hole, which can accurately position the segmented stator and prevent it from shifting during assembly and use. A limiting baffle is fixed to the inner wall of the middle of the fixing pressure plate. When the stator ring is assembled with the water pump housing, the fixing pressure plate is attached to the stator ring, and the limiting baffle is stuck in the cross groove at one end of the self-locking screw. The limiting pressure ring and the stator ring are pressed and fixed by the corresponding bolts inside the housing. The limiting baffle is used to prevent the self-locking screw from loosening. Combined with the self-locking function of the self-locking screw itself, a double anti-loosening guarantee is formed, which improves the stability of the entire stator assembly structure. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the limiting baffle of this utility model;

[0016] Figure 3 This is an exploded view of the present invention;

[0017] Figure 4 This is a schematic diagram of the stator ring of this utility model;

[0018] Figure 5 This is a schematic diagram of the limiting pressure ring of this utility model;

[0019] Figure 6 This is a schematic diagram of the segmented stator structure of this utility model.

[0020] In the diagram: 1. Stator ring; 2. Fixing plate; 3. Mounting groove; 4. Limiting ring; 5. Segmented stator; 6. Semicircular groove; 7. Limiting notch; 8. Limiting pressure ring; 9. Positioning rod; 10. Self-locking screw; 12. Limiting baffle; 13. Limiting groove; 14. Connecting threaded hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1 , 2 As shown in Figures 3, 4, 5, and 6, this utility model provides a technical solution: a stator assembly structure, comprising: a stator ring 1 with an outer side that mates with the pump housing; arc-shaped segmented stators 5, the segmented stators 5 being evenly distributed inside the stator ring 1 with the center of the stator ring 1 as the center, and semi-circular grooves 6 being provided on both sides of the segmented stators 5, with two adjacent semi-circular grooves 6 forming a circular hole; a limiting pressure ring 8 placed on one side of the segmented stator 5 for pressing and fixing the segmented stator 5, a positioning rod 9 corresponding to the circular hole being fixedly connected to one side of the limiting pressure ring 8, and a self-locking screw 10 threaded to the stator ring 1 being installed on one side of the limiting pressure ring 8; and a fixing pressure plate 2 placed on one side of the stator ring 1, with a limiting baffle 12 fixedly connected to the inner wall of the middle part of the fixing pressure plate 2 to prevent the self-locking screw 10 from loosening.

[0023] It should be noted that in this embodiment, multiple segmented stators 5 with coils wound around them are arranged equidistantly inside the stator ring 1 with the center of the stator ring 1 as the center, so that the segmented stators 5 form a closed ring structure. At this time, two adjacent semicircular grooves 6 form a complete circular hole. The positioning rod 9 on one side of the limiting pressure ring 8 is inserted into the corresponding circular hole. Then, the limiting pressure ring 8 is fixed to the stator ring 1 by the self-locking screw 10. In this way, the segmented stators 5 are pressed and fixed inside the stator ring 1 by the limiting pressure ring 8. When assembling the stator ring 1 with the water pump housing, the fixing pressure plate 2 is attached to the stator ring 1, so that the limiting baffle 12 is stuck in the cross groove at one end of the self-locking screw 10. The limiting pressure ring 8 and the stator ring 1 are pressed and fixed by the corresponding bolts inside the housing. In this way, the limiting baffle 12 prevents the self-locking screw 10 from loosening.

[0024] In one embodiment, the stator ring 1 has an internal mounting groove 3, and one end of the mounting groove 3 is fixedly connected to a limiting ring 4 for limiting the position of the segmented stator 5.

[0025] It should be noted that in this embodiment, the inner wall of the mounting groove 3 is in contact with the arc-shaped surface of the outer side of the segmented stator 5, so that the segmented stator 5 is arranged into a complete ring along the inner wall of the mounting groove 3, and one end of the segmented stator 5 is in contact with the limiting ring 4, so that the limiting pressure ring 8 can squeeze and fix the segmented stator 5 from the other end.

[0026] In one embodiment, one end of the segmented stator 5 is provided with a limiting notch 7 that cooperates with the limiting pressure ring 8, and one end of the stator ring 1 is provided with a limiting groove 13 that cooperates with the limiting pressure ring 8. The inside of the limiting groove 13 is provided with a connecting threaded hole 14 that cooperates with the self-locking screw 10.

[0027] It should be noted that in this embodiment, when the segmented stator 5 forms a complete closed ring, the limiting notch 7 is spliced ​​into a complete ring structure. The ring structure formed by the limiting notch 7 cooperates with the limiting pressure ring 8, so that the limiting pressure ring 8 can be fitted onto the outside of the spliced ​​segmented stator 5. Then, the space between the side of the limiting notch 7 and the limiting groove 13 cooperates with the limiting pressure ring 8. The outer side of the self-locking screw 10 is fitted with a washer that passes through the limiting pressure ring 8 and connects to the connecting threaded hole 14. In this way, the limiting pressure ring 8 is positioned and connected to the stator ring 1. The segmented stator 5 is pressed and fixed in the stator ring 1 by the limiting pressure ring 8, and the position of the segmented stator 5 will not be deflected under the action of the positioning rod 9.

[0028] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., 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, they should not be construed as limitations on this utility model.

[0029] Furthermore, the terms “first,” “second,” “third,” and “fourth” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as “first,” “second,” “third,” or “fourth” may explicitly or implicitly include at least one of those features.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stator subassembly structure characterized by: include: Stator coil (1); The segmented stator (5) has an arc-shaped structure. The segmented stator (5) is evenly distributed inside the stator ring (1) with the center of the stator ring (1) as the center. The segmented stator (5) has semi-circular grooves (6) on both sides. Two adjacent semi-circular grooves (6) form a circular hole. A limiting pressure ring (8) is placed on one side of the segmented stator (5). A positioning rod (9) corresponding to a circular hole is fixedly connected to one side of the limiting pressure ring (8). A self-locking screw (10) threaded with the stator ring (1) is installed on one side of the limiting pressure ring (8). A fixed pressure plate (2) is placed on one side of the stator ring (1). A limit baffle (12) is fixed to the inner wall of the middle part of the fixed pressure plate (2) to prevent the self-locking screw (10) from loosening.

2. The stator subassembly of claim 1, wherein: The stator ring (1) has an installation groove (3) inside, and a limiting ring (4) for limiting the segmented stator (5) is fixed to one end of the installation groove (3).

3. The stator subassembly of claim 1, wherein: One end of the segmented stator (5) is provided with a limiting notch (7) that cooperates with the limiting pressure ring (8).

4. The stator assembly structure according to claim 1, characterized in that: One end of the stator ring (1) is provided with a limiting groove (13) that cooperates with the limiting pressure ring (8).

5. The stator subassembly of claim 4, wherein: The limiting groove (13) has a connecting threaded hole (14) that mates with the self-locking screw (10).

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