Coil framework convenient to install and high-low temperature motor stator

Abstract

The utility model relates to the technical field of motors, in particular to a coil framework convenient to install and a high-low temperature motor stator. The coil framework comprises a winding reel assembly which comprises a plurality of winding reels evenly distributed in the circumferential direction, and each winding reel comprises an outer plate body, an inner plate body and a side plate body; the fixing ring assembly is located at one end of the winding reel assembly and used for being connected with all the winding reels; the fixing ring assembly comprises an outer ring plate, an inner ring plate and a coil base, the outer ring plate is connected with the end of an outer plate body of the winding reel, and the inner ring plate is connected with the end of an inner plate body of the winding reel; and the coil seat is erected on the side plate bodies of the two adjacent winding reels and is connected with the outer ring plate and the inner ring plate. The coil framework can be used for insulation of a stator iron core and a stator winding of a high and low temperature stepping motor, a plurality of winding reels can be inserted into a stator groove at the same time, installation steps can be simplified, the coil framework only needs to be slightly supported or even does not need to be supported during winding, and manual operation difficulty can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and particularly relates to a coil skeleton convenient for installation and a stator of a high and low temperature motor. Background Art

[0002] At present, for the insulation between the stator core and the stator winding of a high and low temperature stepping motor (for example, applicable ambient temperature -196°C to +300°C), a polyimide film with a certain thickness is inserted into the stator slot, and then the stator winding is embedded in the corresponding position; since the polyimide film cannot be well fixed to the stator core, when winding the coil, it is necessary to manually support and fix the polyimide film, which increases the difficulty of manual operation, not only has high technical requirements for workers, but also the quality consistency of the produced stator is poor, which is not conducive to quality control and cost reduction. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the problem that using a polyimide film as an insulator in the background art increases the difficulty of manual winding, and provides a coil skeleton convenient for installation and a stator of a high and low temperature motor.

[0004] In a first aspect, the utility model provides a coil skeleton convenient for installation, comprising:

[0005] A winding cylinder assembly, comprising a plurality of circumferentially evenly distributed winding cylinders, and each winding cylinder comprises an outer plate body, an inner plate body and a side plate body;

[0006] A fixing ring assembly, located at one end of the winding cylinder assembly, for connecting all the winding cylinders;

[0007] The fixing ring assembly comprises an outer ring plate, an inner ring plate and a coil seat. The outer ring plate is connected to the end of the outer plate body of the winding cylinder, and the inner ring plate is connected to the end of the inner plate body of the winding cylinder; the coil seat is mounted on the side plate bodies of two adjacent winding cylinders and is connected to the outer ring plate and the inner ring plate.

[0008] The coil skeleton convenient for installation provided by the utility model can be used for the insulation between the stator core and the stator winding; when in use, a plurality of circumferentially evenly distributed winding cylinders can be respectively inserted into the corresponding stator slots, the outer plate body, the inner plate body and the side plate body of the winding cylinder can respectively correspond to the yoke part, the pole shoe part and the tooth part of the stator core, the coil seat can correspond to the end face of the tooth part of the stator core, and the stator winding can be wound on the side plate body and the coil seat, so as to play an insulating role.

[0009] The coil skeleton of the present utility model can be used for the insulation between the stator core and the stator winding of high and low temperature stepping motors. By adopting the method of later insertion, the winding cylinder is embedded in the stator core, which is flexible to use and does not require changing the existing manufacturing process of the stator core; the coil skeleton is integrally arranged, and several winding cylinders can be inserted into the stator slots simultaneously, which is conducive to simplifying the installation steps. When winding the wire, only slight support or even no support for the coil skeleton is needed, which can reduce the difficulty of manual operation.

[0010] Preferably, several wire passing posts are circumferentially arranged on the inner wall of the outer ring plate. The wire passing posts protrude from the top surface of the outer ring plate away from the winding cylinder, and the wire passing posts are located between two adjacent coil seats.

[0011] The wire passing posts can be used for wire outlet or wire passing during wire winding. The enameled wire bypasses from the outside of the wire passing posts, which can provide support for the tension of the enameled wire during wire winding, make it wound more tightly, and reduce the probability of loosening.

[0012] Preferably, the wire passing posts are in a frustum or cylindrical structure, and a hemispherical top cover is connected to the upper end of the wire passing posts; the inner wall of the outer plate body protrudes from the inner wall of the outer ring plate, the lower end surface part of the wire passing post is connected to the end surface of the outer plate body, and the lower side wall of the wire passing post is connected to the inner wall of the outer ring plate. A notch is formed between the wire passing post and the outer ring plate.

[0013] The side surface of the frustum or cylindrical structure is a relatively smooth arc surface, which can reduce the probability of scratching the enameled wire. The hemispherical top cover can also reduce the hemming at the edge of the top surface of the wire passing post and reduce the probability of scratching the enameled wire; the inner wall of the outer plate body protrudes from the inner wall of the outer ring plate, and the end surface of this protruding part can increase the connection surface area of the wire passing post, provide certain support for the wire passing post, make it have greater resistance to overturning inward, and enable a greater force to be used to tighten the enameled wire during wire passing, which is conducive to improving the wire winding quality; the notch can allow the enameled wire to pass through, make the enameled wire be stuck between the outer ring plate and the wire passing post, which is conducive to reducing the shaking of the enameled wire and fixing the enameled wire easily.

[0014] Preferably, axially communicating openings are formed on the inner plate body and the inner ring plate, and a bent part extending outward is arranged at the end of the inner plate body close to the axially communicating opening.

[0015] The axially communicating openings can be used for the wire needles of the winding machine to extend in, and are suitable for the winding machine to wind the stator winding; the inner plate body is provided with a bent part extending outward, which can cover the end part of the stator pole shoe and achieve a better insulation effect between the stator pole shoes.

[0016] Preferably, the inner ring plate is divided into several inner baffles arranged circumferentially by the axially communicating openings; along the direction away from the inner plate body, the width of the inner baffles gradually decreases.

[0017] The gradually decreasing width of the inner baffles is convenient for the wire needles of the winding machine to bypass.

[0018] Preferably, the coil bobbin is integrally injection-molded; the coil bobbin is made of glass fiber-reinforced polyamide.

[0019] Integral injection molding can endow the coil bobbin with high structural strength; glass fiber-reinforced polyamide can further enhance the strength of the coil bobbin, and this material is resistant to high and low temperatures and can meet the usage requirements in the range of -196°C to +300°C.

[0020] Preferably, the outer wall of the outer ring plate protrudes from the outer wall of the outer plate body; the inner wall of the inner ring plate protrudes from the outer wall of the inner plate body.

[0021] A stepped structure can be formed on the outer and inner sides of the coil bobbin, enabling the fixing ring assembly to abut against the end of the stator core from inside and outside the ring, which is conducive to improving the flatness of the fixing ring assembly and the winding quality.

[0022] Preferably, the top surface of the coil seat is lower than the top surfaces of the outer ring plate and the inner ring plate.

[0023] Preferably, the winding cylinder is in interference fit with the stator slot;

[0024] Preferably, the winding cylinder assembly includes eight circumferentially evenly distributed winding cylinders.

[0025] In a second aspect, the present utility model provides a high and low temperature motor stator, including a stator core and two coil bobbins as described above. The two coil bobbins are respectively located at both ends of the stator core, and at least part of the winding cylinder is embedded in the stator slot of the stator core.

[0026] The motor stator provided by the present utility model can improve the insulation performance between the stator core and the stator winding by using two coil bobbins as described above embedded at both ends of the stator core, and is flexible to use and simple in installation steps, which can reduce the difficulty of manual operation.

[0027] Preferably, it further includes a stator winding, and the stator winding is wound around the side plate body and the coil seat.

[0028] Compared with the prior art, the beneficial effects of the present utility model are:

[0029] 1. A coil skeleton provided by the present utility model is convenient for installation and can be used for insulation between a stator core and a stator winding. When in use, a plurality of circumferentially evenly distributed winding cylinders can be respectively inserted into corresponding stator slots. The outer plate body, inner plate body and side plate body of the winding cylinder can respectively correspond to the yoke part, pole shoe part and tooth part of the stator core, the coil seat can correspond to the end face of the tooth part of the stator core, and the stator winding can be wound on the side plate body and the coil seat, thereby playing an insulating role. The coil skeleton described in the present utility model can be used for insulation between the stator core and the stator winding of a high and low temperature stepping motor. By adopting the later insertion method to embed the winding cylinder into the stator core, it is flexible to use and does not require changing the existing manufacturing process of the stator core. The coil skeleton is integrally arranged, and a plurality of winding cylinders can be inserted into the stator slots simultaneously, which is beneficial to simplifying the installation steps. When winding, only a slight support or even no support for the coil skeleton is needed, which can reduce the difficulty of manual operation.

[0030] 2. A motor stator provided by the present utility model can improve the insulation performance between the stator core and the stator winding by using two such coil skeletons to be embedded at both ends of the stator core, and is flexible to use, has simple installation steps, and can reduce the difficulty of manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic structural view of the coil skeleton described in the present utility model Figure 1 ;

[0032] Figure 2 is Figure 1 an enlarged view of part A in

[0033] Figure 3 is a front view of the coil skeleton described in the present utility model

[0034] Figure 4 is Figure 3 an enlarged view of part B in

[0035] Figure 5 is a rear view of the coil skeleton described in the present utility model

[0036] Figure 6 is Figure 5 an enlarged view of part C in

[0037] Figure 7 is a schematic structural view of the coil skeleton described in the present utility model Figure 2 ;

[0038] Figure 8 is Figure 7 an enlarged view of part D in

[0039] Figure 9 is an installation schematic view of two coil skeletons in the high and low temperature motor stator described in the present utility model

[0040] Figure 10 Structural schematic of the coil bobbin of the present utility model Figure 3 ;

[0041] Figure 11 is Figure 10 The enlarged view of part E in the figure.

[0042] Markings in the figure:

[0043] 1 - winding bobbin;

[0044] 11 - outer plate body;

[0045] 12 - inner plate body;

[0046] 13 - side plate body;

[0047] 2 - outer ring plate;

[0048] 21 - wire passing post;

[0049] 22 - notch;

[0050] 3 - inner ring plate;

[0051] 31 - axial opening;

[0052] 32 - inner baffle;

[0053] 33 - bending part;

[0054] 4 - coil seat. Specific embodiments

[0055] The present utility model will be further described in detail below in combination with specific embodiments. However, this should not be construed as limiting the scope of the above - mentioned subject matter of the present utility model to the following embodiments. All technologies implemented based on the content of the present utility model belong to the scope of the present utility model.

[0056] In the description of the specific embodiments of the present utility model, without special instructions, the expression terms of orientation or positional relationship such as "up", "down", "left", "right", "center", "inside", "outside", etc. are all based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the utility model product / device / equipment is commonly used. These terms of orientation or positional relationship are only for the convenience of describing the solution of the present utility model or simplifying the description in specific embodiments, facilitating technicians to quickly understand the solution, rather than indicating or implying that a specific device / component / element must have a specific orientation or be constructed and operated in a specific positional relationship. Therefore, it should not be construed as a limitation to the present utility model.

[0057] In addition, when terms such as "horizontal", "vertical", "suspended", "parallel" appear, it does not mean that the corresponding device / component / element is required to be absolutely horizontal or vertical or suspended or parallel, but it can be slightly inclined or deviated. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but it can be slightly inclined. Or, it can be simply understood that the corresponding device / component / element is arranged in directions such as "horizontal", "vertical", "suspended", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still perform its function in the solution of the present utility model.

[0058] In addition, when expressions such as "first", "second", "third", etc. appear in the terms, they are only used to distinguish the description of the same or similar components, and should not be understood as emphasizing or implying the relative importance of specific components.

[0059] In addition, in the description of the embodiments of the present utility model, "several", "multiple", "a number of" represent at least 2. It can be any situation such as 2, 3, 4, 5, 6, 7, 8, 9, etc., and even can be a situation exceeding 9.

[0060] In addition, in the description of the technical solution of the present utility model, unless otherwise clearly specified / defined / restricted, when terms such as "set", "installed", "connected", "connected", "provided with", "laid", "arranged" appear, they 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 connection means commonly used in the art such as welding, riveting, bolting, threaded connection, etc. Such a connection can be a mechanical connection, an electrical connection or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components.

[0061] Embodiment 1

[0062] As Figures 1-8 shown, a coil skeleton convenient for installation provided in this embodiment includes a winding cylinder assembly and a fixing ring assembly connected to each other, wherein: the winding cylinder assembly includes a plurality of winding cylinders 1 evenly distributed in the circumferential direction. The winding cylinder 1 is a cylindrical structure and includes an outer plate body 11, an inner plate body 12 and a side plate body 13; the fixing ring assembly includes an outer ring plate 2, an inner ring plate 3 and a coil seat 4. The outer ring plate 2 is connected to the end of the outer plate body 11 of the winding cylinder 1, and the inner ring plate 3 is connected to the end of the inner plate body 12 of the winding cylinder 1; the coil seat 4 is erected on the side plate bodies 13 of two adjacent winding cylinders 1 and is connected to the outer ring plate 2 and the inner ring plate 3.

[0063] A plurality of winding bobbins 1 are distributed in a ring shape. The outer plate body 11, the inner plate body 12, and the side plate body 13 are the barrel walls of the winding bobbin 1. The outer plate body 11 is close to the outside of the ring, the inner plate body 12 is close to the center of the ring, and the side plate body 13 includes two pieces for connecting the outer plate body 11 and the inner plate body 12, so that the winding bobbin 1 forms a barrel-shaped structure.

[0064] The winding bobbin 1 is used to be embedded in the stator slots (also known as stator slot-embedding grooves) of the stator core. Among them: the outer plate body 11 corresponds to the yoke part of the stator core, the side plate body 13 corresponds to the tooth part of the stator core, and the inner plate body 12 corresponds to the stator pole shoes arranged on the tooth part. The outer side wall of the winding bobbin 1 can be designed into a shape adapted to the side wall of the stator slot, so that the winding bobbin 1 can be better embedded in the stator slot.

[0065] It can be understood that the inner wall cross-section of part of the yoke of the stator core is arc-shaped, and the inner wall cross-section of part of the yoke of the stator core is polygonal. The outer plate body 11 can be set into a corresponding arc surface or polygonal surface, for example Figure 5 for the case of a polygonal surface.

[0066] The fixing ring assembly is arranged at one end of the winding bobbin assembly and is used to connect a plurality of circumferentially arranged winding bobbins 1. Through the fixing ring assembly, the plurality of winding bobbins 1 are connected into one body, and the plurality of winding bobbins 1 can be inserted into each stator slot at the same time, and the installation is simple and convenient; the fixing ring assembly includes an annular outer ring plate 2, an inner ring plate 3, and a coil seat 4 connecting the outer ring plate 2 and the inner ring plate 3. The outer ring plate 2 can be connected to the end face of the outer plate body 11, the inner ring plate 3 can be connected to the end face of the inner plate body 12, and in addition to connecting the outer ring plate 2 and the inner ring plate 3, the coil seat 4 can also be connected to the end faces of the side plate bodies 13 of two adjacent winding bobbins 1, so as to provide sufficient connection support for the winding bobbin 1.

[0067] During use, the stator winding can be wound around the side plate body 13 and the coil seat 4, and is insulated from the stator core through the outer plate body 11 and the inner plate body 12; to restrain the stator winding, the top surfaces of the outer ring plate 2 and the inner ring plate 3 away from the winding bobbin 1 are higher than the top surface of the coil seat 4, and the three form a concave structure, as Figure 1 shown.

[0068] A coil skeleton provided by the present utility model is convenient for installation and can be used for insulation between the stator core and the stator winding; during use, a plurality of circumferentially evenly distributed winding bobbins 1 can be respectively inserted into the corresponding stator slots. The outer plate body 11, the inner plate body 12, and the side plate body 13 of the winding bobbin 1 can respectively correspond to the yoke part, pole shoes, and tooth part of the stator core, and the coil seat 4 can correspond to the end face of the tooth part of the stator core. The stator winding can be wound around the side plate body 13 and the coil seat 4, so as to play an insulating role.

[0069] The coil skeleton described in the present utility model can be used for the insulation between the stator core and the stator winding of high and low temperature stepping motors. By adopting the later insertion method, the winding cylinder 1 is embedded in the stator core, which is flexible to use and does not require changing the existing manufacturing process of the stator core. The coil skeleton is integrally arranged, and several winding cylinders 1 can be inserted into the stator slots simultaneously, which is beneficial to simplifying the installation steps. During winding, the coil skeleton only needs to be slightly supported or even not supported at all, which can reduce the difficulty of manual operation.

[0070] The number of winding cylinders 1 in the winding cylinder assembly can be 2N (N = 2, 3, 4...); for this embodiment, the winding cylinder assembly includes 8 circumferentially evenly distributed winding cylinders 1.

[0071] Preferably, the winding cylinder 1 is in interference fit with the stator slot. Through the interference fit, the winding cylinder 1 can be stuck in the stator slot, which is convenient for subsequent winding.

[0072] In one or several preferred embodiments, a number of wire passing posts 21 are circumferentially arranged on the inner wall of the outer ring plate 2. The wire passing posts 21 protrude from the top surface of the outer ring plate 2 away from the winding cylinder 1, and the wire passing posts 21 are located between two adjacent coil seats 4.

[0073] The wire passing posts 21 can be used for wire outlet or wire passing during winding. The wire material of the stator winding (such as enameled wire) bypasses the outside of the wire passing posts 21, which can provide support for the tension of the enameled wire during winding, make it wound more tightly, and reduce the probability of loosening.

[0074] Preferably, the wire passing posts 21 are in the shape of a frustum of a cone or a cylinder, and a hemispherical top cover is connected to the upper end of the wire passing posts 21. The inner wall of the outer plate body 11 protrudes from the inner wall of the outer ring plate 2. The lower end face of the wire passing posts 21 partially abuts against the end face of the outer plate body 11, and the lower side wall of the wire passing posts 21 is connected to the inner wall of the outer ring plate 2. A notch 22 is formed between the wire passing posts 21 and the outer ring plate 2.

[0075] The side surface of the frustum of a cone or cylindrical structure is a relatively smooth arc surface, which can reduce the probability of scratching the enameled wire. The hemispherical top cover can also reduce the folded edge at the top edge of the wire passing posts 21 and reduce the probability of scratching the enameled wire. Preferably, the distance between the wire passing posts 21 and two adjacent coil seats 4 is equal.

[0076] Such as Figure 4 、 10As shown in Fig. 11, the inner wall of the outer plate body 11 protrudes from the inner wall of the outer ring plate 2. In this way, the wall thickness of the outer ring plate 2 can be reduced, saving some materials. Moreover, the end face of the protruding part can increase the connection area of the wire passing column 21, providing certain support for the wire passing column 21, enabling it to have greater resistance to tipping inward, so that a greater force can be used to tighten the enameled wire during wire winding, which is beneficial to improving the winding quality. The notch 22 allows the enameled wire to pass through, and the enameled wire is clamped between the outer ring plate 2 and the wire passing column 21, which is beneficial to reducing the shaking of the enameled wire and facilitating the fixing of the enameled wire.

[0077] One way to form the notch 22 is as follows: the wire passing column 21 has a frustum-shaped structure, and its end face far from the winding cylinder 1 is the small end. Through a cross-section that continuously narrows in the direction away from the winding cylinder 1, a notch 22 with a smaller lower part and a larger upper part is formed between the wire passing column 21 and the outer ring plate 2. Another way to form the notch 22 is: the inner side wall of the outer ring plate 2 is slightly inclined upward, and a notch 22 with a smaller lower part and a larger upper part can also be formed.

[0078] In one or several preferred embodiments, the inner plate body 12 and the inner ring plate 3 are provided with axially communicating openings 31, and the end of the inner plate body 12 close to the axially communicating opening 31 is provided with an outwardly bent portion 33.

[0079] As Figures 5-8 shown, the direction of the axially communicating opening 31 is parallel or approximately parallel to the central axis of the coil skeleton. The axially communicating opening 31 divides the inner plate body 12 into two isolated sub-plates, and divides the inner ring plate 3 into several inner baffles 32 arranged circumferentially. The axially communicating opening can be used for the wire needle of the winding machine to extend in, enabling this coil skeleton to be applicable to the situation of winding the stator winding by the winding machine, which is beneficial to expanding the usage scenario.

[0080] The bent portion is arranged at the adjacent ends of the two sub-plates of the same inner plate body 12. The bent portion bends outwardly towards the outside of the winding cylinder 1, and can cover the end of the stator pole shoe, achieving a better insulation effect between the stator pole shoes.

[0081] Preferably, the inner ring plate 3 is divided into several circumferentially arranged inner baffles 32 by the axially communicating opening 31; along the direction away from the inner plate body 12, the width of the inner baffle 32 gradually decreases.

[0082] Those skilled in the art can understand that the wire needle of the winding machine works by surrounding the teeth of the stator core. In order to shorten the distance traveled by the wire needle of the winding machine in one week, the shape of the inner baffle 32 can be appropriately adjusted, for example, gradually shortening its width in the direction away from the inner plate body 12, so that the wire needle of the winding machine can better bypass.

[0083] Preferably, the coil skeleton is integrally injection-molded; the coil skeleton is made of glass fiber-reinforced polyamide.

[0084] Integral injection molding can endow the coil skeleton with high structural strength; glass fiber-reinforced polyamide can further enhance the strength of the coil skeleton, and this material is resistant to high and low temperatures and can meet the usage requirements in the range of -196 to +300 °C.

[0085] Preferably, the outer wall of the outer ring plate 2 protrudes from the outer wall of the outer plate body 11; the inner wall of the inner ring plate 3 protrudes from the outer wall of the inner plate body 12. As Figures 5-6 shown, a stepped structure can be formed on the outer and inner sides of the coil skeleton, enabling the fixing ring assembly to abut against the end of the stator core from inside and outside the ring, which is beneficial to improving the flatness of the fixing ring assembly and the winding quality.

[0086] Embodiment 2

[0087] A high and low temperature motor stator provided in this embodiment includes a stator core and two coil skeletons as described in Embodiment 1. The two coil skeletons are respectively located at both ends of the stator core, and at least part of the winding cylinder 1 is embedded in the stator slots of the stator core.

[0088] Two coil skeletons can be inserted from both ends of the stator core, and the ends of the two coil skeletons can abut against each other (as Figure 9 shown) to achieve a better insulation effect.

[0089] Preferably, it further includes a stator winding, and the stator winding is wound around the side plate body 13 and the coil seat 4.

[0090] In some embodiments, the stator winding is an enameled wire, a copper bar or an aluminum bar.

[0091] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A coil bobbin that is convenient for installation, characterized in that, Comprising: A bobbin assembly, including a plurality of bobbins (1) evenly distributed circumferentially, and the bobbin (1) includes an outer plate body (11), an inner plate body (12) and a side plate body (13); A fixing ring assembly, located at one end of the bobbin assembly, for connecting all the bobbins (1); The fixing ring assembly includes an outer ring plate (2), an inner ring plate (3) and a coil seat (4). The outer ring plate (2) is connected to the end of the outer plate body (11) of the bobbin (1), and the inner ring plate (3) is connected to the end of the inner plate body (12) of the bobbin (1); The coil seat (4) is erected on the side plate bodies (13) of two adjacent bobbins (1) and is connected to the outer ring plate (2) and the inner ring plate (3).

2. The coil bobbin that is easy to install according to claim 1, wherein, A plurality of wire passing posts (21) are circumferentially arranged on the inner wall of the outer ring plate (2). The wire passing posts (21) protrude from the top surface of the outer ring plate (2) away from the bobbin (1), and the wire passing posts (21) are located between two adjacent coil seats (4).

3. The coil bobbin facilitating installation according to claim 2, wherein, The wire passing post (21) is in a frustum or cylindrical structure, and a hemispherical top cover is connected to the upper end of the wire passing post (21); The inner wall of the outer plate body (11) protrudes from the inner wall of the outer ring plate (2). The lower end surface of the wire passing post (21) is partially connected to the end surface of the outer plate body (11), and the lower side wall of the wire passing post (21) is connected to the inner wall of the outer ring plate (2). A notch (22) is formed between the wire passing post (21) and the outer ring plate (2).

4. The coil skeleton facilitating installation according to claim 1, characterized in that, Axial openings (31) communicating with each other are formed on the inner plate body (12) and the inner ring plate (3), and a bent portion (33) facing outward is arranged at the end of the inner plate body (12) close to the axial opening (31).

5. The coil skeleton facilitating installation according to claim 4, wherein, The inner ring plate (3) is divided into a plurality of inner baffles (32) arranged circumferentially by the axial opening (31); along the direction away from the inner plate body (12), the width of the inner baffle (32) gradually decreases.

6. The coil skeleton facilitating installation according to claim 1, wherein, The coil skeleton is integrally injection-molded; the coil skeleton is made of glass fiber-reinforced polyamide.

7. The coil skeleton facilitating installation according to claim 1, wherein The outer wall of the outer ring plate (2) protrudes from the outer wall of the outer plate body (11); the inner wall of the inner ring plate (3) protrudes from the outer wall of the inner plate body (12).

8. The coil skeleton convenient for installation according to claim 1, wherein: The top surface of the coil seat (4) is lower than the top surfaces of the outer ring plate (2) and the inner ring plate (3); and / or, the bobbin (1) is in interference fit with the stator slot; and / or, the bobbin assembly includes eight bobbins (1) evenly distributed circumferentially.

9. A high and low temperature motor stator, comprising a stator core, characterized in that, It further includes two coil skeletons as described in any one of claims 1-8. The two coil skeletons are respectively located at both ends of the stator core, and the bobbin (1) is at least partially embedded in the stator slots of the stator core.

10. The high and low temperature motor stator according to claim 9, characterized in that, It further includes a stator winding, and the stator winding is wound on the side plate body (13) and the coil seat (4).

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