A motor stator filling device

Abstract

The utility model relates to a motor stator filling device belongs to motor production equipment technical field, including stator setting cylinder, the lower part of stator setting cylinder has lower mould, the upper part of stator setting cylinder has upper mould, and the fastening between lower mould, stator setting cylinder and upper mould is through screw piece, wherein stator setting cylinder includes fixed cylinder, the fixed cylinder is sleeved with stator, and the upper part has first limit board, and screw piece penetrates first limit board, filling cylinder, filling cylinder is sleeved outside stator, and the lower part is provided with second limit board and is connected with fixed cylinder, second limit board is provided with drainage piece, and drainage piece can introduce glue in lower mould into filling cylinder, upper mould can close filling cylinder, and upper mould is provided with the vacuumizing pipeline of connecting vacuumizing equipment. In view of the problem that the air bubble and the hollow drum appear in the stator inside when filling glue, a motor stator filling device is provided, which gradually fills the glue in the filling cavity by gradually vacuumizing the filling cavity.

Description

Technical Field

[0001] This application belongs to the technical field of motor production equipment, and specifically relates to a motor stator filling device. Background Technology

[0002] The stator is a crucial component of a motor, and the quality of its winding coils directly impacts the motor's performance. Water ingress into the winding coils will directly damage the motor. Currently, to improve motor stability and durability, manufacturers pot the stator windings, increasing their resilience.

[0003] In a motor stator potting device with publication number CN119051383A, in order to prevent air bubbles and voids from causing poor potting quality during potting, an inner cylinder and a lifting column are provided to gradually inject potting adhesive from the inside of the stator core from bottom to top.

[0004] In the view of the inventors of this technical solution, by pressing the sealant from the injection tank into the inner cylinder, the sealant will not immediately fill the entire inner cylinder, and there is an extension space in the inner cylinder. When it is squeezed into the inner cylinder, it will flow to other empty places and will not fill the remaining air bubbles and voids in a specific direction. Therefore, the technical solution adopted by the prior art has not completely solved the problem of air bubbles and voids. Utility Model Content

[0005] The purpose of this invention is to address the problem of air bubbles and voids inside the stator during existing glue filling processes by providing a motor stator filling device that gradually evacuates the filling cavity to allow the sealant to gradually fill the cavity.

[0006] To achieve the above technical objectives, the following technical solution is provided: a motor stator filling device, including a stator mounting cylinder, a lower mold at the lower part of the stator mounting cylinder, an upper mold at the upper part of the stator mounting cylinder, and the lower mold, the stator mounting cylinder and the upper mold being fastened together by screws;

[0007] The stator mounting cylinder includes a fixed cylinder, on which a stator is fitted. The upper part of the fixed cylinder has a first limiting plate, and a screw rod passes through the first limiting plate.

[0008] A filling cylinder is sleeved outside the stator, and a second limiting plate is provided at its lower part to connect with the fixed cylinder;

[0009] The second limiting plate is equipped with a flow guide, which can guide the glue located in the lower mold into the filling cylinder;

[0010] The upper mold can seal the filling cylinder, and the upper mold is equipped with a vacuum pipe that connects to a vacuum pumping device;

[0011] The fixed lower mold, stator mounting cylinder and upper mold form a filling space. The glue in the lower mold is guided into the filling cylinder by the guide component through the vacuum equipment. The vacuuming operation is stopped when the glue is detected in the upper mold.

[0012] In one feasible embodiment, the guide includes a plurality of evenly distributed through holes formed on the second limiting plate, each through hole having a tapered nozzle extending into the lower mold.

[0013] In one feasible embodiment, the lower mold includes an outer end cap, the bottom of which is provided with an adhesive inlet, and the outer end cap mates with the filling cylinder.

[0014] The inner cap is semi-closed cylindrical, with the open end fixed to the outer end cap and surrounding the glue inlet. A screw is fixed to the closed end, and several glue outlets are evenly distributed on the side near the closed end.

[0015] There is an adhesive storage space between the outer end cap and the inner end cap, and the adhesive storage space contains a conical nozzle.

[0016] In one feasible embodiment, the upper mold includes a base cover, the bottom surface of which is provided with a first hole for a mating screw, and a fastener with a sensor is provided in the first hole;

[0017] The extended top edge is located inside the side of the base cover and extends into the filling cylinder to restrict the stator.

[0018] And a vacuum pipe set on the side of the base cover.

[0019] In one feasible embodiment, the filling cylinder has a reserved space inside, which is located above the second limiting plate. The reserved space has a stepped component on its side, which supports the stator to prevent it from contacting the second limiting plate.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] The vacuum extraction method replaces the traditional extrusion method, ensuring that no air bubbles or voids occur during the sealing process. Furthermore, it allows for complete sealing of the entire stator, preventing corrosive gases and liquids from entering the stator interior from the winding ends.

[0022] The entire device has a simple structure, is easy to assemble, and is convenient to use. Attached Figure Description

[0023] 1. Stator mounting cylinder; 2. Lower mold; 3. Upper mold; 4. Screw assembly; 5. Stator; 11. Fixing cylinder; 12. First limiting plate; 13. Second limiting plate; 14. Drainage component; 15. Filling cylinder; 20. External end cap; 21. Glue inlet; 22. Internal sealing cap; 23. Glue outlet; 31. Base cap; 32. First hole; 33. Fastener; 34. Extended top edge; 35. Vacuum pipe; 140. Through hole; 141. Conical nozzle.

[0024] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0025] Figure 2 This is an exploded view of the overall structure of this embodiment;

[0026] Figure 3 This is an exploded sectional view of the overall structure of this embodiment; Detailed Implementation

[0027] like Figure 1 , Figure 2 and Figure 3 The embodiment shown includes a motor stator filling device, comprising a stator mounting cylinder 1, a lower mold 2 at the lower part of the stator mounting cylinder 1, and an upper mold 3 at the upper part of the stator mounting cylinder 1. The lower mold 2, the stator mounting cylinder 1 and the upper mold 3 are fastened together by a screw 4.

[0028] In this embodiment, the specific structure of the stator mounting cylinder 1 includes a fixed cylinder 11 and a filling cylinder 15. The fixed cylinder 11 is fitted with a stator 5, and its upper part has a first limiting plate 12. The screw 4 passes through the first limiting plate 12. The filling cylinder 15 is fitted outside the stator 5, and its lower part is provided with a second limiting plate 13 connected to the fixed cylinder 11.

[0029] The second limiting plate 13 is equipped with a flow guide 14, which guides the adhesive located in the lower mold 2 into the filling cylinder 15. The flow guide 14 has a specific structure including several evenly distributed through holes 140 formed on the second limiting plate 13, each through hole 140 having a conical nozzle 141 extending into the lower mold 2. The conical nozzle 141 increases the flow rate of the adhesive into the filling cylinder 15, and the rapid filling compresses the gaps within the filling cylinder 15.

[0030] In this embodiment, the lower mold 2 has the following specific structure: it includes an outer end cap 20 and an inner cap 22. The bottom of the outer end cap 20 is provided with an adhesive inlet 21, and the outer end cap 20 cooperates with the filling cylinder 15. The inner cap 22 is a semi-closed cylinder, with its open end fixed to the outer end cap 20 and surrounding the adhesive inlet 21. A screw 4 is fixed to the closed end, and several adhesive outlets 23 are evenly distributed on the side near the closed end. Moreover, there is an adhesive storage space between the outer end cap 20 and the inner cap 22, and the adhesive storage space contains a conical nozzle 141.

[0031] In another embodiment, the preferred filling cylinder 15 has a reserved space on its inner side, which is located above the second limiting plate 13. The side of the reserved space has a step, which supports the stator 5 to prevent it from contacting the second limiting plate 13.

[0032] In this embodiment, the upper mold 3 can seal the filling cylinder 15, and the upper mold 3 is provided with a vacuum pipe 35 for connecting to a vacuum pumping device. Specifically, the upper mold 3 includes a base cover 31, an extended top edge 34, and the aforementioned vacuum pipe 35. The bottom surface of the base cover 31 is provided with a first hole 32 for engaging the screw 4, and a fastener 33 with a sensor is provided in the first hole 32. The extended top edge 34 is located inside the side of the base cover 31 and extends into the filling cylinder 15 to restrict the stator 5. The vacuum pipe 35 is located on the side of the base cover 31.

[0033] In this embodiment, a filling space is formed within the fixed lower mold 2, stator mounting cylinder 1, and upper mold 3. Specifically, the screw 4 on the closed end extends into the fixed cylinder 11, then passes through the first limiting plate 12, and then into the upper mold 3, passing through the first hole 32 and through the base cover 31. Finally, it is secured to the screw 4 by fasteners 33. During operation, the adhesive in the lower mold 2 is guided to the filling cylinder 15 via the guide 14 using a vacuum pump. The vacuuming operation stops when adhesive is detected in the upper mold 3. This application does not require the entire device to achieve a 100% vacuum; it only needs to create a relatively large negative pressure in the filling space to ensure that there are no air bubbles or voids in the sealant.

[0034] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing the technical solution of this patent 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, and therefore should not be construed as a limitation on this patent application.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this patent application, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this specification, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," 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 communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this specification according to the specific circumstances.

[0037] In this specification, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0039] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A motor stator filling device, comprising a stator mounting cylinder (1), wherein the lower part of the stator mounting cylinder (1) has a lower mold (2) and the upper part of the stator mounting cylinder (1) has an upper mold (3), characterized in that, The lower mold (2), the stator mounting cylinder (1) and the upper mold (3) are fastened together by a screw (4); wherein the stator mounting cylinder (1) includes a fixed cylinder (11), a stator (5) is sleeved on the fixed cylinder (11), and a first limiting plate (12) is provided on its upper part, and the screw (4) passes through the first limiting plate (12). A filling cylinder (15) is sleeved on the outside of the stator (5), and a second limiting plate (13) is provided at its lower part to connect with the fixed cylinder (11). The second limiting plate (13) is provided with a flow guide (14), which can introduce the glue located in the lower mold (2) into the filling cylinder (15); The upper mold (3) can seal the filling cylinder (15), and the upper mold (3) is provided with a vacuum pipe (35) connected to a vacuum pumping device; A filling space is formed within the fixed lower mold (2), stator mounting cylinder (1), and upper mold (3). The glue in the lower mold (2) is guided to the filling cylinder (15) through the guide component (14) by the vacuuming device. The vacuuming operation is stopped when glue is detected in the upper mold (3).

2. The motor stator filling device according to claim 1, characterized in that, The guide (14) includes a plurality of evenly distributed through holes (140) formed on the second limiting plate (13), and each through hole (140) is provided with a conical nozzle (141) extending into the lower mold (2).

3. The motor stator filling device according to claim 2, characterized in that, The lower mold (2) includes an outer end cap (20), and the bottom of the outer end cap (20) is provided with an adhesive inlet (21). The outer end cap (20) cooperates with the filling cylinder (15). The inner cover (22) is a semi-closed cylindrical shape. The open end is fixed on the outer end cover (20) and surrounds the glue inlet (21). The screw (4) is fixed on the closed end. Several glue outlets (23) are evenly distributed on the side near the closed end. The space between the outer end cap (20) and the inner end cap (22) is a glue storage space, and the tapered nozzle (141) is contained within the glue storage space.

4. The motor stator filling device according to claim 1, characterized in that, The upper mold (3) includes a base cover (31), and a first hole (32) that cooperates with the screw (4) is provided on the bottom surface of the base cover (31). A fastener (33) with a sensor is provided in the first hole (32). An extended top edge (34) is located inside the side of the base cover (31) and extends into the filling cylinder (15) to restrict the stator (5); And the vacuum pipe (35) provided on the side of the base cover (31).

5. The motor stator filling device according to claim 1, characterized in that, The filling cylinder (15) has a reserved space on its inner side, which is located above the second limiting plate (13). The reserved space has a step on its side, which supports the stator (5) to prevent it from contacting the second limiting plate (13).

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