Flame-retardant stator coil holder

Abstract

The utility model provides a flame-retardant stator coil holder, and belongs to the technical field of motor stators. Comprising an iron core, the iron core is a frame body mechanism which is formed by stacking a plurality of iron sheets and used for winding of a winding coil, the outer surface of the iron core is sleeved with a heat dissipation sleeve, the inner wall of the heat dissipation sleeve is provided with a flame-retardant inner cylinder, the flame-retardant inner cylinder wraps the outer edge face of the iron core, and limiting end sheets are detachably fixed to the two ends of the flame-retardant inner cylinder. The shape of the limiting end piece is consistent with that of an iron sheet of the iron core, and the limiting end piece covers the end part of the iron core. The high-temperature-resistant flame-retardant cable has a certain flame-retardant effect, is suitable for high-temperature, inflammable and explosive occasions and the like, has a certain heat conduction and heat dissipation effect, can avoid overheating to a certain extent, and is good in overall use effect.

Description

Technical Field

[0001] The utility model relates to the technical field of motor stators, and particularly relates to a flame-retardant stator wire holder. Background Art

[0002] A stator wire holder is a key component in an electric motor for fixing winding coils. It not only needs to provide mechanical support but also should have good electrical insulation performance.

[0003] Currently, existing stator wire holders are generally made of ordinary plastics or metals. When used in some special working environments, such as high-temperature, flammable, or explosion-risk occasions, these existing stator holders cannot meet the flame-retardant and safety requirements, posing potential hazards of causing fires or explosions.

[0004] Therefore, this application provides a flame-retardant stator wire holder to solve the above technical problems. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a flame-retardant stator wire holder to solve the problem that existing stator holders cannot meet the flame-retardant and safety requirements and pose potential hazards of causing fires or explosions.

[0006] To solve the above technical problems, the utility model provides the following technical solutions:

[0007] A flame-retardant stator wire holder includes an iron core. The iron core is formed by stacking multiple iron sheets to form a frame mechanism for winding coils of a winding. A heat dissipation sleeve is sleeved on the outer surface of the iron core. A flame-retardant inner cylinder is arranged on the inner wall of the heat dissipation sleeve. The flame-retardant inner cylinder wraps the outer edge surface of the iron core, and both ends of the flame-retardant inner cylinder are detachably fixed with limiting end pieces. The limiting end pieces are in the same shape as the iron sheets of the iron core and cover the ends of the iron core.

[0008] Optionally, both the flame-retardant inner cylinder and the limiting end pieces are made of flame-retardant materials.

[0009] Optionally, the flame-retardant material includes PA6 in nylon PA materials.

[0010] Optionally, multiple grooves are formed on the outer edge surface of the iron core, and multiple convex ribs adapted thereto are formed on the inner wall of the flame-retardant inner cylinder.

[0011] Optionally, fixing screw holes are formed on the flame-retardant inner cylinder, and fastening bolts are arranged on the limiting end pieces. The fastening bolts penetrate through the limiting end pieces and are threadedly inserted and fixed with the fixing screw holes.

[0012] Optionally, multiple accommodating holes are formed on the limiting end pieces, and the fastening bolts pass through the accommodating holes, and the nuts of the fastening bolts are retained in the accommodating holes.

[0013] Optionally, heat dissipation fins are distributed around the outer edge surface of the heat dissipation sleeve.

[0014] Compared with the prior art, the present utility model has at least the following beneficial effects:

[0015] In the above solution, thanks to the arrangement of the limiting end piece and the flame-retardant inner cylinder, the iron core can be wrapped, and the flame-retardant performance of itself is used to make the stator wire frame have a good flame-retardant effect, making it suitable for high-temperature, flammable, explosive and other occasions, and the use effect is good.

[0016] In the above solution, thanks to the arrangement of the heat dissipation sleeve and the heat dissipation fins, the heat dissipation sleeve and the heat dissipation fins can be used to conduct heat dissipation treatment to a certain extent on the iron core wrapped by the limiting end piece and the flame-retardant inner cylinder, which is beneficial to prevent overheating.

[0017] To sum up, the device of the present utility model not only has a certain flame-retardant effect and is suitable for high-temperature, flammable, explosive and other occasions, but also has a certain heat conduction and heat dissipation effect, and can avoid overheating to a certain extent, and the overall use effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present utility model, and together with the specification are further used to explain the principles of the present utility model and enable those skilled in the relevant art to implement and use the present utility model.

[0019] Figure 1 is a schematic structural diagram of a flame-retardant stator wire frame;

[0020] Figure 2 is a schematic structural diagram of the flame-retardant stator wire frame after removing the limiting end piece;

[0021] Figure 3 is a schematic structural diagram of the limiting end piece of the flame-retardant stator wire frame;

[0022] Figure 4 is a front view of the heat dissipation sleeve of the flame-retardant stator wire frame.

[0023] [Reference Numerals]

[0024] 1. Iron core; 2. Heat dissipation sleeve; 201. Heat dissipation fin; 3. Limiting end piece; 301. Accommodating hole; 302. Fastening bolt; 4. Flame-retardant inner cylinder; 401. Fixed screw hole.

[0025] As shown in the figure, in order to clearly implement the structure of the embodiments of the present utility model, specific structures and devices are marked in the figure, but this is only for schematic needs and is not intended to limit the present utility model to this specific structure, device and environment. According to specific needs, those of ordinary skill in the art can adjust or modify these devices and environments. Detailed Implementation Modes

[0026] The following will combine the accompanying drawings and specific embodiments to describe in detail a flame-retardant stator wire frame provided by the present utility model. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the accompanying drawings are only for more specifically describing the embodiments, and are not intended to specifically limit the present utility model.

[0027] It should be pointed out that in the specification, when referring to "an embodiment", "embodiment", "exemplary embodiment", "some embodiments", etc., it indicates that the described embodiment may include specific features, structures or characteristics, but not necessarily every embodiment includes such specific features, structures or characteristics. Additionally, when combining an embodiment to describe a specific feature, structure or characteristic, implementing such a feature, structure or characteristic in combination with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the relevant art.

[0028] Generally, terms can be understood at least in part from their use in context. For example, at least in part depending on the context, the term "one or more" used herein can be used to describe any feature, structure or characteristic in a singular sense, or can be used to describe a combination of features, structures or characteristics in a plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey a set of exclusive factors, but rather, at least in part depending on the context, can allow for the existence of other factors that are not necessarily explicitly described.

[0029] It can be understood that the meanings of "on...", "above...", and "over..." in the present utility model should be interpreted in the broadest manner, such that "on..." not only means "directly on" something, but also includes the meaning of being "on" something with intervening features or layers therebetween, and "above..." or "over..." not only means "above" or "over" something, but also can include the meaning of being "above" or "over" something with no intervening features or layers therebetween.

[0030] Furthermore, spatial relative terms such as "under...", "below...", "lower part", "above...", "upper part", etc. are used herein for convenience of description to describe the relationship between one element or feature and another or more elements or features, as shown in the accompanying drawings. Spatial relative terms are intended to cover different orientations in the use or operation of the device other than the orientation depicted in the accompanying drawings. The device can be oriented in other ways, and the spatial relative descriptive words used herein can be similarly interpreted accordingly.

[0031] As Figure 1As shown, an embodiment of the present utility model provides a flame-retardant stator wire holder, which includes an iron core 1. The iron core 1 is formed by stacking multiple iron sheets to form a frame mechanism for winding a winding coil. A heat dissipation sleeve 2 is sleeved on the outer surface of the iron core 1. A flame-retardant inner cylinder 4 is arranged on the inner wall of the heat dissipation sleeve 2. The flame-retardant inner cylinder 4 wraps the outer edge surface of the iron core 1. Specifically, multiple grooves are formed on the outer edge surface of the iron core 1, and multiple convex ribs adapted thereto are formed on the inner wall of the flame-retardant inner cylinder 4, so that the heat dissipation sleeve 2 and the flame-retardant inner cylinder 4 can be quickly sleeved on the iron core 1.

[0032] And cooperate Figure 2 With Figure 3 As shown, detachable limiting end pieces 3 are fixedly arranged at both ends of the flame-retardant inner cylinder 4. The limiting end pieces 3 have the same shape as the iron sheets of the iron core 1 and cover the ends of the iron core 1. Specifically, fixing screw holes 401 are formed on the flame-retardant inner cylinder 4, fastening bolts 302 are arranged on the limiting end pieces 3. The fastening bolts 302 penetrate through the limiting end pieces 3 and are threadedly inserted and fixed with the fixing screw holes 401. Among them, multiple accommodating holes 301 are formed on the limiting end pieces 3, and the fastening bolts 302 pass through the accommodating holes 301, and the nuts of the fastening bolts 302 are retained in the accommodating holes 301, which can ensure the flatness of the outer surface of the limiting end pieces 3 to avoid protrusion.

[0033] In addition, both the flame-retardant inner cylinder 4 and the limiting end pieces 3 are made of flame-retardant materials. In this embodiment, the flame-retardant materials can specifically be, but are not limited to, PA6 in nylon PA materials. The flame-retardant PA6 materials usually have good mechanical properties and flame-retardant characteristics, and also have good heat conduction effects, and can transfer heat to the heat dissipation sleeve 2.

[0034] And cooperate Figure 4 As shown, heat dissipation fins 201 are distributed around the outer edge surface of the heat dissipation sleeve 2. Therefore, the heat dissipation fins 201 can be used for heat conduction and heat dissipation treatment, which is beneficial to preventing overheating.

[0035] The working principle provided by the present utility model is as follows: for this flame-retardant stator wire holder, during use, the outer surface of the iron core 1 is wrapped by the flame-retardant inner cylinder 4 in the heat dissipation sleeve 2, and the ends of the iron core 1 are covered by the limiting end pieces 3 fixed at the ends of the flame-retardant inner cylinder 4, so that the whole iron core 1 can be wrapped to a certain extent. The flame-retardant properties of the limiting end pieces 3 and the flame-retardant inner cylinder 4 are used to make the stator wire holder have good flame-retardant effects, making it suitable for high-temperature, flammable, explosive and other occasions, and having good use effects.

[0036] Meanwhile, while using the limit end piece 3 and the flame-retardant inner cylinder 4 to wrap the iron core 1 to ensure a certain flame-retardant effect, through the arrangement of the heat dissipation fins 201 on the heat dissipation sleeve 2, the iron core 1 wrapped by the limit end piece 3 and the flame-retardant inner cylinder 4 can be subjected to a certain degree of heat conduction and heat dissipation treatment, which is beneficial to preventing overheating.

[0037] In summary, the present device not only has a certain flame-retardant effect and is applicable to high-temperature, flammable, explosive and other occasions, but also has a certain heat conduction and heat dissipation effect, which can avoid overheating to a certain extent, and the overall use effect is good.

[0038] The present utility model covers any substitutions, modifications, equivalent methods and solutions made on the essence and scope of the present utility model. In order to enable the public to have a thorough understanding of the present utility model, specific details are described in detail in the following preferred embodiments of the present utility model, and those skilled in the art can fully understand the present utility model without these detailed descriptions. In addition, well-known methods, processes, procedures, components and circuits are not described in detail in order to avoid unnecessary confusion to the essence of the present utility model.

[0039] The above are only the preferred embodiments of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A flame-retardant stator wire holder, comprising an iron core (1), characterized in that, The iron core (1) is a frame mechanism formed by stacking multiple iron sheets for winding a winding coil. A heat dissipation sleeve (2) is sleeved on the outer surface of the iron core (1). A flame-retardant inner cylinder (4) is arranged on the inner wall of the heat dissipation sleeve (2). The flame-retardant inner cylinder (4) wraps the outer edge surface of the iron core (1), and limiting end pieces (3) are detachably fixed at both ends of the flame-retardant inner cylinder (4). The limiting end pieces (3) are in the same shape as the iron sheets of the iron core (1) and cover the ends of the iron core (1).

2. The flame-retardant stator wire holder according to claim 1, wherein Both the flame-retardant inner cylinder (4) and the limiting end pieces (3) are made of flame-retardant materials.

3. The flame-retardant stator wire holder according to claim 2, characterized in that The flame-retardant material includes PA6 in nylon PA materials.

4. The flame-retardant stator wire holder according to claim 1, wherein Multiple grooves are formed on the outer edge surface of the iron core (1), and multiple convex ribs adapted thereto are formed on the inner wall of the flame-retardant inner cylinder (4).

5. The flame-retardant stator wire holder according to claim 1, characterized in that Fixing screw holes (401) are formed in the flame-retardant inner cylinder (4), and fastening bolts (302) are arranged on the limiting end pieces (3). The fastening bolts (302) penetrate through the limiting end pieces (3) and are threadedly inserted and fixed with the fixing screw holes (401).

6. The flame-retardant stator wire holder according to claim 5, wherein, Multiple accommodating holes (301) are formed in the limiting end pieces (3), and the fastening bolts (302) pass through the accommodating holes (301), and the nuts of the fastening bolts (302) are retained in the accommodating holes (301).

7. The flame-retardant stator wire holder according to claim 1, wherein, Heat dissipation fins (201) are distributed around the outer edge surface of the heat dissipation sleeve (2).

Images