Stator notch potting enclosure device

Abstract

The utility model relates to the manufacture of motor stators, in particular to a stator notch encapsulation enclosure device, which comprises an annular enclosure body, the enclosure body is formed by splicing a first blocking body, a second blocking body and two third blocking bodies, the first blocking body and the second blocking body are arranged oppositely, and the third blocking bodies are arranged oppositely. The third blocking bodies are respectively arranged between the adjacent end parts of the first blocking body and the second blocking body; the inner sides of the two third blocking bodies are connected through a telescopic mechanism capable of extending or retracting in the radial direction of the fence body, when the telescopic mechanism extends, the two third blocking bodies are embedded between the first blocking body and the second blocking body in the radial direction of the fence body, and when the telescopic mechanism retracts, the two third blocking bodies are embedded between the first blocking body and the second blocking body in the radial direction of the fence body. The two third blocking bodies are separated from the first blocking body and the second blocking body in the radial direction of the surrounding blocking body. According to the utility model, the stator notch enclosure tool can be withdrawn without axial drawing, and the protection effect of notch potting and filling is ensured.

Description

Technical Field

[0001] The utility model relates to the production of motor stators, in particular to a stator slot potting enclosure device. Background Art

[0002] At present, in the design of some types of traction motor stators, in order to enhance the performance of preventing wind and sand, foreign objects, improving the insulation performance and mechanical performance of the stator during operation, it is required to fill and protect the stator slots by potting with potting glue. When performing the potting operation on the stator slots, it is necessary to seal the inner side of the stator slots with a surrounding tooling to ensure that after the potting glue is poured into the slots, the solidified potting glue liquid is formed, and after high-temperature baking and curing, the surrounding tooling is removed.

[0003] As Figure 1 shown, the existing stator slot potting enclosure tooling is an integrally formed circular surrounding body structure. During the potting operation, the surrounding tooling is installed inside the stator slots to achieve the potting seal protection of the inner cavity of the stator slots. There are several deficiencies in the existing surrounding tooling: First, after the potting glue is cured, the entire surrounding tooling is adhered to the potting glue at the slots, and the overall adhesion area is large, making it difficult to withdraw the surrounding tooling; Second, when the entire surrounding tooling is withdrawn from the slots, it is necessary to pull the tooling out along the axial direction of the stator with force. Due to the large overall bonding surface and large force, it is easy to cause the phenomenon of upward pulling and displacement of the potting glue at the slots, resulting in a gap between the iron core and the potting glue, affecting the protection effect after the stator slots are filled with potting glue. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to propose a stator slot potting enclosure device in view of the problems existing in the stator slot potting enclosure tooling, so as to solve the problems such as the inconvenient withdrawal of the surrounding tooling and the easy displacement of the potting glue affected by the strong pulling force during the withdrawal of the surrounding tooling in the existing operation mode.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A stator slot potting enclosure device includes an annular surrounding body, wherein:

[0007] The surrounding body is formed by splicing a first blocking body, a second blocking body and two third blocking bodies. The first blocking body and the second blocking body are arranged opposite to each other, and the third blocking bodies are respectively installed between the adjacent ends of the first blocking body and the second blocking body;

[0008] The inner sides of the two third retaining bodies are connected by a telescopic mechanism that can extend or retract radially along the retaining body. When the telescopic mechanism extends, the two third retaining bodies are radially inserted between the first retaining body and the second retaining body along the retaining body. When the telescopic mechanism retracts, the two third retaining bodies radially disengage from the first retaining body and the second retaining body along the retaining body.

[0009] The retaining body of the present utility model is formed by splicing structural members, and the inner sides of the two third retaining bodies are connected by a telescopic mechanism that can extend or retract radially along the retaining body. In this way, the assembly or disassembly operation of the retaining body can be carried out by the extension or retraction of the telescopic mechanism. Thus, before potting, the retaining body can be conveniently spliced into one body for potting and sealing protection through the extension of the telescopic mechanism. After potting and solidifying, the partial disassembly of the retaining body can be realized through the retraction of the telescopic mechanism (during this process, the potting is only subjected to the radial tension of the stator), which not only facilitates the withdrawal of the retaining body, but also avoids the pulling displacement of the potting glue at the notch caused by the overall axial pulling and withdrawal of the retaining body along the stator, so as not to affect the protection effect after the potting glue at the notch is filled.

[0010] Preferably, threaded rods are respectively installed on the inner sides of the two third retaining bodies, the thread directions of the two threaded rods are opposite, and the two threaded rods are respectively threadedly connected to one end of the sleeve. When the sleeve is rotated, the two third retaining bodies are radially inserted into or disengaged from the first retaining body and the second retaining body along the retaining body.

[0011] Preferably, first bevel surfaces are respectively arranged at the ends of the first retaining body and the second retaining body, second bevel surfaces are respectively arranged at both ends of the third retaining body, and the inner arc length of the third retaining body is greater than the outer arc length. The first bevel surface and the second bevel surface cooperate to achieve sliding connection.

[0012] Preferably, a key or a groove is arranged on the first bevel surface, a groove or a key is arranged on the second bevel surface, and the first bevel surface and the second bevel surface are connected through the cooperation of the key and the groove.

[0013] Preferably, a handle is arranged on the sleeve to facilitate the rotation and use of the sleeve.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. The present utility model solves the problems in the original operation mode, such as the inconvenient withdrawal of the retaining tooling and the displacement of the potting glue caused by the axial strong pulling during the withdrawal of the retaining.

[0016] 2. The present utility model adopts spliced structural members, and the adjacent spliced structural members are connected by the combination of keys and grooves. Turning the sleeve can carry out the tightening and loosening operations, thereby playing the role of connecting and solidifying the retaining body, and the use operation is convenient and reliable.

[0017] 3. After the potting adhesive is cured, the present utility model can realize the partial withdrawal of each splicing part of the enclosure tooling one by one, effectively avoiding the phenomena such as difficult withdrawal, axial strong pulling force, and colloid displacement that occur during the use of the integral structure enclosure tooling.

[0018] 4. The present utility model can retain the core structure and its operation method by changing the sizes of the splicing structural parts to be applicable to the slot potting operations of stators with different sizes. At the same time, the withdrawal method and device of the present utility model have the advantages of simple application, good effect, and suitability for batch operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic structural diagram of the existing potting enclosure tooling.

[0021] Figure 2 It is a schematic structural diagram of the assembled device of the present utility model.

[0022] Figure 3 It is a schematic structural diagram of the splicing process of the device of the present utility model.

[0023] Figure 4 It is a front view structural diagram of the device of the present utility model.

[0024] Figure 5 For Figure 4 the A - A sectional view structure diagram. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following further describes the present utility model in conjunction with specific preferred embodiments, but does not limit the protection scope of the present utility model thereby.

[0026] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] Please refer to Figures 2-5 As shown in [the figure], an embodiment of the stator slot opening potting enclosure device of the present utility model includes an annular enclosure body, and the enclosure body is formed by splicing a first baffle 1, a second baffle 2, and two third baffles 3. The first baffle 1 and the second baffle 2 are arranged oppositely, and the third baffles 3 are respectively installed between the adjacent ends of the first baffle 1 and the second baffle 2. Threaded rods 4 are respectively installed on the inner sides of the two third baffles 3, the thread directions of the two threaded rods 4 are opposite, and the two threaded rods 4 are respectively threadedly connected to one end of a sleeve 5. When the sleeve 5 is rotated, the two third baffles 3 are radially embedded into or disengaged from between the adjacent ends of the first baffle 1 and the second baffle 2.

[0029] When the present utility model is in use, the third baffle 3 can be radially embedded between the first baffle 1 and the second baffle 2 by twisting the sleeve 5 to splice the enclosure body to form a potting enclosure protection at the inner cavity of the stator slot opening. When the potting adhesive is filled and baked and cured, when the enclosure body is removed, the operation opposite to the installation operation can be adopted. First, twist the sleeve 5 to radially disengage the third baffle 3 from between the first baffle 1 and the second baffle 2, and then take out the first and second baffles 1 and 2 from the side of the stator slot opening. In this way, the original axial withdrawal of the enclosure tooling is changed to radial withdrawal, which not only effectively avoids the situation that the integral structure enclosure tooling is difficult to withdraw due to large-area adhesion to the potting adhesive and excessive pulling force, but also avoids the phenomenon such as the upward displacement of the potted colloid caused by the large axial force pulling and withdrawing of the original enclosure tooling, thereby ensuring the protection effect of the stator slot opening potting filling.

[0030] It should be noted that in this embodiment, the cooperation between the threaded rod and the sleeve is used to realize the embedding or disengagement of the two third baffles. However, the present utility model is not limited thereto. Obviously, as long as a telescopic mechanism that can realize the radial embedding or disengagement of the two third baffles 3 from between the adjacent ends of the first baffle 1 and the second baffle 2 can achieve the function of the present utility model.

[0031] The end portions of the first stopper 1 and the second stopper 2 are respectively provided with first inclined planes 6, the two ends of the third stopper 3 are respectively provided with second inclined planes 7, and the inner arc length of the third stopper 3 is greater than the outer arc length. A key or a groove is provided on the first inclined plane 6, a groove or a key is provided on the second inclined plane 7, and the first inclined plane 6 and the second inclined plane 7 are slidably and guidingly connected through the cooperation of the key and the groove.

[0032] A handle 8 is provided on the sleeve 5 to facilitate the rotational use of the sleeve 5.

[0033] The above is only the specific implementation of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present utility model by using the disclosed technical content without departing from the scope of the technical solution of the present utility model, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model without departing from the content of the technical solution of the present utility model shall fall within the protection scope of the technical solution of the present utility model.

Claims

1. A stator slot opening potting enclosure device, comprising an annular enclosure body, characterized in that: The enclosure body is formed by splicing a first baffle, a second baffle and two third baffles. The first baffle and the second baffle are arranged oppositely, and the third baffles are respectively installed between the adjacent ends of the first baffle and the second baffle; The inner sides of the two third baffles are connected by a telescopic mechanism that can extend or retract radially along the enclosure body. When the telescopic mechanism extends, the two third baffles are radially inserted into the space between the first baffle and the second baffle along the enclosure body. When the telescopic mechanism retracts, the two third baffles are radially separated from the first baffle and the second baffle along the enclosure body.

2. The stator slot opening potting enclosure device according to claim 1, wherein Threaded rods are respectively installed on the inner sides of the two third baffles. The thread directions of the two threaded rods are opposite, and the two threaded rods are respectively threadedly connected to one end of a sleeve. When the sleeve is rotated, the two third baffles are radially inserted into or separated from the space between the first baffle and the second baffle along the enclosure body.

3. The stator slot opening potting enclosure device according to claim 2, wherein, A handle is provided on the sleeve.

4. The stator slot opening potting enclosure device according to any one of claims 1 to 3, characterized in that First bevel surfaces are respectively provided at the ends of the first baffle and the second baffle. Second bevel surfaces are respectively provided at both ends of the third baffle, and the inner arc length of the third baffle is greater than the outer arc length. The first bevel surface and the second bevel surface are cooperated to achieve sliding connection.

5. The stator slot opening potting enclosure device according to claim 4, characterized in that, Keys or grooves are provided on the first bevel surface, and grooves or keys are provided on the second bevel surface. The first bevel surface and the second bevel surface are connected through the cooperation of the key and the groove.

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