Novel iron core fixing assembly

Abstract

According to the novel iron core fixing assembly, after penetrating through the small-diameter part of the connecting hole, the connecting column of the iron core support is tightly attached to the inner wall of the large-diameter part of the connecting hole of the iron core body through the hot riveting technology, and therefore firm connection between the iron core body and the iron core support is achieved. By means of the design, the mechanical strength of the iron core assembly is improved, due to the limiting effect of the hot riveting end and the inner wall of the large-diameter part, displacement of the connecting column in the using process can be effectively prevented, and the stability and reliability of the iron core assembly are ensured. In the hot riveting process, the connecting columns are softened at high temperature and filled, and process control is achieved through temperature control, so that the iron core body and the iron core support are firmly combined together, the firmness after interference assembly of the iron core body and the iron core support is improved, the stability of the assembly performance is improved, and the service life of a product is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a core technical field, concretely relates to a novel core fixing assembly. BACKGROUND

[0002] In prior art, the iron core and the iron core support are connected only by interference assembly, two small through holes on the iron core are assembled into the bottom of the iron core support, and the iron core is fixed on the iron core support by size interference. But as the iron core support is an injection molding part, the size of two protruding cylindrical points is unstable, after interference assembly, the product is assembled and used, and in the rotating process, the iron core support and the iron core can be separated, the product performance is affected, and the service life is shortened. SUMMARY

[0003] Therefore, the utility model provides a novel core fixing assembly.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A novel core fixing assembly, comprising an iron core body and an iron core support, at least one connecting hole is formed on the iron core body, a connecting column corresponding to the connecting hole is formed on the iron core support, the connecting column is connected with the iron core body by penetrating the connecting hole, the connecting hole has a large diameter part and a small diameter part, a hot riveting end is formed by hot melting at one end of the connecting column penetrating the small diameter part of the connecting hole, and the hot riveting end is limited to be connected with the inner wall of the large diameter part.

[0006] Preferably, the radial section shape of the connecting hole is square, and the shape of the connecting column is set as a cuboid corresponding to the radial section shape of the connecting hole.

[0007] Preferably, two connecting holes are arranged, the radial section shape of the connecting hole is circular, and the shape of the connecting column is set as a cylinder corresponding to the radial section shape of the connecting hole.

[0008] Preferably, the iron core support has a body part and an iron core limiting part, the iron core limiting part is arranged at both ends of the body part, the connecting column is formed on the body part, the iron core body is fixed on the body part, and the iron core limiting part is limited to the position of the iron core body on the body part by abutting against both ends of the iron core body.

[0009] Preferably, a connecting part is further arranged between the iron core limiting part and the body part, the connecting part is formed by protruding from both ends of the body part to the direction away from the center of the body part, the width of the connecting part is smaller than the width of the body part, the iron core limiting part is arranged in a disc shape, and the center of the connecting part is connected with the iron core limiting part.

[0010] Preferably, the connecting column and the iron core support are integrally formed by injection molding, and the connecting column and the connecting hole are interference fitted.

[0011] Preferably, the hot-melt formed hot riveting end has an outer diameter greater than an inner diameter of the connecting hole, and the shape of the hot riveting end is set to correspond to the shape of the large-diameter portion.

[0012] The iron core support is firmly connected with the iron core body. The design not only improves the mechanical strength of the iron core assembly, but also effectively prevents displacement of the connecting column during use due to the limiting effect of the hot riveting end and the inner wall of the large-diameter portion, ensuring the stability and reliability of the iron core assembly. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0014] FIG. 1 is a structural schematic diagram of an iron core body according to the present application; Fig. 1 FIG. 1 is a structural schematic diagram of an iron core body according to the present application;

[0015] FIG. 1 is a structural schematic diagram of an iron core body according to the present application; Fig. 2 FIG. 1 is a structural schematic diagram of an iron core body according to the present application;

[0016] FIG. 1 is a structural schematic diagram of an iron core body according to the present application; Fig. 3 FIG. 1 is a structural schematic diagram of an iron core body according to the present application; DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application, and obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0018] The present application will be further described below with reference to the drawings of the present application.

[0019] The present application provides the following technical solutions:

[0020] FIG. 1 is a structural schematic diagram of an iron core body according to the present application; Figs. 1-3The utility model discloses a novel iron core fixed assembly, including iron core body 1 and iron core support 2, at least one connecting hole 3 is seted up on the iron core body 1, the connecting column 4 of corresponding connecting hole 3 is formed in the protruding on the iron core support 2, the connecting column 4 passes through connecting hole 3 and is connected with the iron core body 1, connecting hole 3 has large diameter portion 5 and small diameter portion 6, the hot riveting end 7 of one end hot melt of connecting column 4 passing through the small diameter portion 6 of connecting hole 3, the hot riveting end 7 and the inner wall of large diameter portion 5 limit and meet. Specifically, in the design, the connecting column 4 of iron core support 2 is closely attached with the inner wall of the connecting hole 3 large diameter portion 5 of iron core body 1 after passing through the small diameter portion 6 of connecting hole 3 through the hot riveting process, thereby realizing the firm connection of iron core body 1 and iron core support 2. The design not only improves the mechanical strength of the iron core assembly, but also can effectively prevent the displacement of the connecting column 4 during use due to the limiting effect of the hot riveting end 7 and the inner wall of the large diameter portion 5, ensuring the stability and reliability of the iron core assembly. In the process of hot riveting, the connecting column 4 is softened and filled by high temperature, and the temperature control is achieved by process control, so that the iron core body 1 and the iron core support 2 are firmly combined together, the firmness of the iron core body 1 and the iron core support 2 after interference assembly is increased, the stability of the assembly performance is improved, and the service life of the product is increased.

[0021] Specifically, after placing the iron core body 1 on the iron core support 2, heat the electric iron to 200-220℃, then press the iron head against the part of the connecting column located in the large diameter portion of the connecting hole, soften it with high temperature, and fill the large diameter portion. After filling, the outer diameter of the hot riveting end 7 is larger than the outer diameter of the small diameter portion.

[0022] Further, the radial cross-sectional shape of the connecting hole 3 is square, and the shape of the connecting column 4 is set as a cuboid corresponding to the radial cross-sectional shape of the connecting hole 3. Specifically, in this embodiment, the number of connecting holes 3 is set to one, and the square design of the connecting hole 3 can provide a larger contact area, thereby achieving more uniform heat distribution and stronger connection strength during hot riveting. The cuboid shape of the connecting column 4 matches the square connecting hole 3, ensuring the stability of the connecting column 4 in the hole and the close fit during hot riveting. In addition, by accurately controlling the size of the connecting hole 3 and the connecting column 4, the assembly accuracy and overall performance of the iron core assembly can be further improved. In practical application, this design can effectively reduce the loosening problem caused by vibration or rotation, ensuring the reliability of the iron core assembly under various working conditions.

[0023] Further, the connecting holes 3 are provided in two, and the radial cross-sectional shape of the connecting holes 3 is circular, and the shape of the connecting columns 4 is correspondingly provided as a cylindrical body. In this embodiment, when the radial cross-sectional shape of the connecting holes 3 is circular, the connecting columns 4 are also cylindrical in structure, at this time, the number of connecting holes 3 and connecting columns 4 are both provided as two, which can prevent loosening caused by rotation, and by increasing the number of contact points, further improve the stability and torsional capacity of the connection. This design not only ensures the reliability of the core assembly when subjected to high torque, but also effectively disperses stress and reduces fatigue damage caused by stress concentration. In addition, the matching of the cylindrical connecting holes 3 and connecting columns 4 allows heat to be more evenly transmitted during the hot riveting process, thereby improving the overall hot riveting quality.

[0024] Further, the core support 2 has a body part 8 and a core limiting part 9, the core limiting part 9 is provided at both ends of the body part 8, the connecting column 4 is protruding formed on the body part 8, the core body 1 is fixed on the body part 8, and the core limiting part 9 abuts against both ends of the core body 1 to limit the position of the core body 1 on the body part 8. Specifically, in this embodiment, the core limiting part 9 is designed in a shape that can closely cooperate with the core body 1, ensuring that the core body 1 will not displace when the core assembly is subjected to external force. The contact area between the core limiting part 9 and the core body 1 is large, which can effectively disperse the pressure and avoid damage caused by excessive local stress.

[0025] Further, the core limiting part 9 and the body part 8 are further provided with a connecting part 10, the connecting part 10 is protruding formed from both ends of the body part 8 away from the center of the body part 8, the width of the connecting part 10 is smaller than the width of the body part 8, the core limiting part 9 is provided in a disc shape, and the center of the connecting part 10 is connected with the core limiting part 9. Specifically, in this embodiment, the design of the connecting part 10 forms a kind of elastic connection between the core limiting part 9 and the body part 8, which not only enhances the overall stability of the core assembly, but also absorbs part of the energy when subjected to impact or vibration, thereby protecting the core body 1 from damage. In addition, the width of the connecting part 10 is smaller than the width of the body part 8, which helps to reduce material usage and reduce overall weight while maintaining sufficient strength and rigidity. The core limiting part 9 is disc-shaped, which can effectively disperse the pressure from the core body 1.

[0026] Further, the connecting column 4 is integrally formed with the iron core support 2 by injection molding, and the connecting column 4 and the connecting hole 3 are in interference fit. Specifically, in the embodiment, the outer diameter of the connecting column 4 is slightly larger than the inner diameter of the connecting hole 3, so that a certain interference amount is generated when the connecting column 4 is inserted into the connecting hole 3. This design can ensure that the connecting column 4 and the iron core support 2 have high connection strength and stability. In actual application, the interference fit can also prevent the connecting column 4 from loosening when subjected to vibration or impact, thereby ensuring the overall performance and reliability of the iron core assembly.

[0027] Further, the outer diameter of the hot riveting end 7 formed by hot melting is larger than the inner diameter of the connecting hole 3, and the shape of the hot riveting end 7 is set to correspond to the shape of the large-diameter part. Specifically, in the embodiment, the outer diameter of the hot riveting end 7 is larger than the inner diameter of the connecting hole 3, which ensures that the hot riveting end 7 can fully fill the connecting hole 3 during hot riveting, thereby forming a firm connection. The shape of the hot riveting end 7 matches the large-diameter part, which not only enhances the stability of the connection, but also ensures the reliability of the iron core assembly when subjected to vibration or impact. In actual application, this design can effectively prevent the iron core assembly from loosening or shifting during operation, thereby prolonging the service life of the equipment and improving its operating efficiency.

[0028] The above description of disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A novel core fixing assembly comprising a core body and a core support, characterized in that: At least one connecting hole is formed on the iron core body, a connecting column corresponding to the connecting hole is formed on the iron core support, the connecting column is connected with the iron core body through the connecting hole, the connecting hole has a large diameter part and a small diameter part, a hot riveting end is formed at one end of the connecting column through the small diameter part of the connecting hole, and the hot riveting end is limited by the inner wall of the large diameter part.

2. The novel core fixation assembly of claim 1, wherein: The radial section shape of the connecting hole is square, and the shape of the connecting column is a cuboid corresponding to the radial section shape of the connecting hole.

3. The novel core fixation assembly of claim 1, wherein: Two connecting holes are arranged, the radial section shape of the connecting hole is circular, and the shape of the connecting column is a cylinder corresponding to the radial section shape of the connecting hole.

4. The novel core fixation assembly of claim 1, wherein: The iron core support has a body part and iron core limiting parts, the iron core limiting parts are arranged at both ends of the body part, the connecting column is formed on the body part, the iron core body is fixed on the body part, and the iron core limiting parts limit the position of the iron core body on the body part by abutting against both ends of the iron core body.

5. The novel core fixation assembly of claim 4, wherein: A connecting part is further arranged between the iron core limiting part and the body part, the connecting part is formed by protruding from both ends of the body part away from the center of the body part, the width of the connecting part is smaller than that of the body part, the iron core limiting part is disc-shaped, and the center of the connecting part is connected with the center of the iron core limiting part.

6. The novel core fixation assembly of claim 1, wherein: The connecting column and the iron core support are integrally formed by injection molding, and the connecting column and the connecting hole are in interference fit.

7. The novel core fixation assembly of claim 1, wherein: The outer diameter of the hot riveting end formed by hot melting is larger than the inner diameter of the connecting hole, and the shape of the hot riveting end is set corresponding to the shape of the large diameter part.

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