Coil framework assembly capable of increasing heat conduction

Abstract

The utility model discloses a coil framework assembly capable of increasing heat conduction, and belongs to the technical field of motor stator coil frameworks. The technical problem that how to improve the heat dissipation capacity of the coil framework needs to be urgently solved is solved. According to the technical scheme, an outer silicon steel body is annular, a plurality of equidistant magnetic conduction parts are evenly arranged on the circumferential face of the outer silicon steel body, each magnetic conduction part comprises a radial part and an arc-shaped part, a V-shaped groove is formed in the joint of each radial part and the corresponding arc-shaped part, an insulating cover plate is laid on the end face of the outer silicon steel body, and a stator framework is composed of two framework half bodies of the same structure; one inner silicon steel body is assembled in each stator framework, each inner silicon steel body comprises an inner head part, a neck part and an outer head part, the two framework half bodies are spliced into the two sides of the neck part and the outer head part of each inner silicon steel body, a male head and a female head are respectively arranged on the two sides of the neck part and the outer head part of each inner silicon steel body, and the plurality of inner silicon steel bodies are spliced into a ring in the outer silicon steel bodies, so that the heat conduction effect is improved, the assembly is convenient, and the assembly efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of motor stator coil frames, and in particular to a coil frame component with increased thermal conductivity. Background Art

[0002] Currently, a Chinese patent with publication number CN 112531948 A discloses a coil skeleton, which includes: a skeleton body, on which a wire can be wound to form a coil, the skeleton body including a receiving channel running through the skeleton body; the receiving channel including a first receiving portion and a second receiving portion opposite to the first receiving portion, the first receiving portion being configured to receive a lead end of the wire from a first side of the skeleton body, and the second receiving portion being configured to receive a conductive terminal from a second side of the skeleton body, so that when the conductive terminal is accommodated in the second receiving portion, the conductive terminal forms electrical contact with the lead end.

[0003] As for the above structure, we know that silicon steel sheets are used as the frame material on the stator frame. The use of silicon steel sheets can reduce eddy current loss. At the same time, the frame will also generate heat due to the influence of eddy current. Based on the current structure, for example, the above-mentioned disclosed solution can be seen that the stator frame structure can form eddy currents in a large area, and after heating, it is easy to accumulate on the surface, and the conduction efficiency is poor, which causes this structure to be more prone to heating during use. The above-mentioned solution has not effectively solved or improved this problem.

[0004] It can be seen that how to improve the heat dissipation capacity of the coil skeleton is a technical problem that needs to be solved urgently. Utility Model Content

[0005] In order to solve the above technical problems and shortcomings: how to improve the heat conduction and heat dissipation capabilities of the coil skeleton and facilitate assembly and positioning, the present invention provides a coil skeleton assembly with increased heat conduction.

[0006] To achieve the above-mentioned and other related purposes, the present invention adopts the following technical solutions:

[0007] A coil skeleton assembly for improving heat conduction includes an insulating cover plate, an outer silicon steel body, a stator skeleton, and an inner silicon steel body. The outer silicon steel body is annular and has a plurality of equally spaced magnetic conductive portions evenly arranged on the circumference. The magnetic conductive portions include radial portions and arcuate portions. A V-shaped groove is formed at the intersection of the radial portion and the arcuate portion. The insulating cover plate is applied to the end surface of the outer silicon steel body.

[0008] The stator frame is composed of two frame halves of the same structure. An inner silicon steel body is assembled in each stator frame. The inner silicon steel body includes an inner head, a neck and an outer head. The two frame halves are spliced together at the neck of the inner silicon steel body. Male and female heads are respectively provided on both sides of the outer head. Multiple inner silicon steel bodies are spliced into a ring inside the outer silicon steel body.

[0009] Preferably, the skeleton half is made of thermal conductive nylon, PA6.

[0010] Preferably, the skeleton half comprises an inner seat, a winding seat, and an outer seat. Both the inner seat and the outer seat are turned outward from the end of the winding seat, and a winding groove is provided on the winding seat.

[0011] Preferably, the inner seat and the outer seat are provided with wire grooves and wire holes.

[0012] Preferably, the wire trough includes a first-class wire trough and a second-class wire trough. The first-class wire trough is arranged on the symmetry line of the skeleton half. The first-class wire trough starts from the inner seat and extends on the inner side of the winding seat to the outer seat. Two second-class wire troughs are symmetrically arranged on the outer seat.

[0013] In summary, the present invention has at least one of the following beneficial technical effects:

[0014] 1. Compared with the integrated silicon steel body, this solution uses a separate design of outer and inner silicon steel bodies, which can increase the heat dissipation area, increase the gap, improve the thermal conductivity, and reduce eddy current heating. In terms of assembly, while installing through the stator frame, it also utilizes the assembly method of male and female connectors to facilitate the assembly of the entire structure. The outer silicon steel body is annular and has a limiting effect on the stator frame and inner silicon steel body, thereby improving assembly efficiency.

[0015] 2. Using thermal conductive nylon as the skeleton half, it is light, has good structural strength, and can further increase the thermal conductivity;

[0016] 3. The winding groove on the winding seat can limit the winding group to prevent the copper wire winding from slipping and improve the efficiency of the assembly process;

[0017] 4. The design of the wire trough can facilitate the adjustment of the position and direction of the winding terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of an embodiment of the present invention;

[0019] Figure 2 This is a top view of the structure of an embodiment of the present invention;

[0020] Figure 3 This is an exploded view of the structure of an embodiment of the present invention;

[0021] Figure 4 It is a structural diagram of the inner silicon steel body;

[0022] Figure 5 This is a schematic structural diagram of an embodiment of a skeleton half body;

[0023] Figure 6 It is a schematic structural diagram of the second embodiment of the skeleton half.

[0024] Description of the reference numerals of the main components:

[0025] 1. Insulating cover; 2. Outer silicon steel body; 21. Magnetic conductive part; 211. Radial part; 212. Arc-shaped part; 213. V-shaped groove; 3. Stator frame; 31. Frame half; 311. Inner seat; 312. Winding seat; 313. Outer seat; 314. Class I wire slot; 315. Class II wire slot; 316. Wire hole; 317. Winding slot; 4. Inner silicon steel body; 41. Inner head; 42. Neck; 43. Outer head; 431. Male connector; 432. Female connector. DETAILED DESCRIPTION

[0026] The following describes the embodiments of the present invention through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through different specific embodiments. The details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other unless they conflict.

[0027] It should be noted that the illustrations provided in the following embodiments are merely schematic illustrations of the basic concept of the present invention. The illustrations only show components related to the present invention and are not drawn according to the number, shape, and size of components in actual implementation. In actual implementation, the type, quantity, and proportion of each component can be changed at will, and the component layout may also be more complex.

[0028] The following is combined with Figure 1-6 The specific implementation methods of the present invention are further described.

[0029] Example:

[0030] refer to Figure 1 、 Figure 2 The present invention discloses an embodiment of a coil skeleton assembly with increased thermal conductivity, comprising an insulating cover plate 1, an outer silicon steel body 2, a stator skeleton 3, and an inner silicon steel body 4. The outer silicon steel body 2 is annular and has a plurality of equally spaced magnetic conductive portions 21 evenly arranged on the circumference. The magnetic conductive portion 21 includes a radial portion 211 and an arcuate portion 212. A V-shaped groove 213 is formed at the intersection of the radial portion 211 and the arcuate portion 212. This shape design can largely overcome the generation of eddy current heat and improve heat dissipation and thermal conductivity. The insulating cover plate 1 is laid on the end face of the outer silicon steel body 2. The insulating cover plate 1 is relatively light and has the function of isolating and protecting the outer silicon steel body 2.

[0031] refer to Figure 3 、 Figure 4 and Figure 5 The stator frame 3 is composed of two identical frame halves 31. Each stator frame 3 houses an inner silicon steel body 4, which includes an inner head 41, a neck 42, and an outer head 43. The two frame halves 31 are joined to the neck 42 of the inner silicon steel body 4. The outer head 43 is flanked by male and female connectors 431 and 432, respectively. Multiple inner silicon steel bodies 4 are assembled into a ring within the outer silicon steel body 2. This assembly method is highly efficient and robust.

[0032] In order to further improve the thermal conductivity, the skeleton half 31 is made of thermal conductive nylon, PA6.

[0033] from Figure 5 As can be seen in the figure, the frame half 31 includes an inner seat 311, a winding seat 312, and an outer seat 313. The inner seat 311 and the outer seat 313 are both turned outward from the end of the winding seat 312. The winding seat 312 is provided with a winding groove 317. The winding groove 317 on the winding seat 312 can limit the winding assembly, prevent the copper wire winding from slipping, and improve the efficiency of the assembly process.

[0034] exist Figure 5 As can be seen in the figure, the inner seat 311 and the outer seat 313 are provided with a wire groove and a wire hole 316. The design of the wire groove can facilitate the adjustment of the position and direction of the winding terminal.

[0035] The wire ducts include a first-class duct 314 and a second-class duct 315. The first-class duct 314 is located on the symmetry line of the frame half 31, extending from the inner seat 311 inside the winding seat 312 to the outer seat 313. Two second-class ducts 315 are symmetrically arranged on the outer seat 313. This structure helps reduce manufacturing costs and facilitates the winding of wires (copper wires).

[0036] In order to further reduce costs, you can also use Figure 6 The structure shown is to simplify the appearance of the skeleton half 31.

[0037] As can be seen from the above, compared to the integrated silicon steel body, this solution utilizes a separate design of the outer silicon steel body 2 and the inner silicon steel body 4, thereby increasing the heat dissipation area, increasing the gap, improving the thermal conductivity, and reducing eddy current heating. In terms of assembly, while being installed through the stator frame 3, it also utilizes the assembly method of the male head 431 and the female head 432 to facilitate the assembly of the entire structure. The outer silicon steel body 2 is annular and has a limiting effect on the stator frame 3 and the inner silicon steel body 4 assembled therein, improving assembly efficiency. The use of thermally conductive nylon material as the frame half 31 is lightweight, has good structural strength, and can further increase the thermal conductivity effect.

[0038] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, any equivalent variations based on the structure, shape, or principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A coil skeleton assembly for increasing thermal conductivity, comprising an insulating cover plate (1), an outer silicon steel body (2), a stator skeleton (3), and an inner silicon steel body (4), characterized in that: The outer silicon steel body (2) is annular and has a plurality of equally spaced magnetic conductive portions (21) evenly arranged on its circumference. The magnetic conductive portion (21) includes a radial portion (211) and an arc portion (212). A V-shaped groove (213) is formed at the intersection of the radial portion (211) and the arc portion (212). The insulating cover plate (1) is laid on the end surface of the outer silicon steel body (2). The stator frame (3) is composed of two frame halves (31) of the same structure. An inner silicon steel body (4) is assembled in each stator frame (3). The inner silicon steel body (4) includes an inner head (41), a neck (42) and an outer head (43). The two frame halves (31) are spliced together on the neck (42) of the inner silicon steel body (4). A male head (431) and a female head (432) are respectively provided on both sides of the outer head (43). Multiple inner silicon steel bodies (4) are spliced into a ring inside the outer silicon steel body (2).

2. The coil skeleton assembly with increased thermal conductivity according to claim 1, characterized in that: The skeleton half (31) is made of heat-conducting nylon, PA6.

3. The coil skeleton assembly with increased thermal conductivity according to claim 2, characterized in that: The skeleton half body (31) comprises an inner seat (311), a winding seat (312), and an outer seat (313). Both the inner seat (311) and the outer seat (313) are turned outward from the end of the winding seat (312). A winding groove (317) is provided on the winding seat (312).

4. The coil skeleton assembly with increased thermal conductivity according to claim 3, characterized in that: The inner seat (311) and the outer seat (313) are provided with a wire passing groove and a wire passing hole (316).

5. The coil skeleton assembly with increased thermal conductivity according to claim 4, characterized in that: The wire trough includes a first-class wire trough (314) and a second-class wire trough (315). The first-class wire trough (314) is arranged on the symmetry line of the skeleton half body (31). The first-class wire trough (314) starts from the inner seat (311) and extends on the inner side of the winding seat (312) to the outer seat (313). Two second-class wire troughs (315) are symmetrically arranged on the outer seat (313).

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