Hollow cup winding structure, micro motor and power device

Abstract

The utility model relates to a hollow cup winding structure, a micro motor and a power device. All turns in the same winding are connected in series head to tail through a first wiring element to form a first wiring structure, and the head end and the tail end of the first wiring structure of the same phase line are connected in series head to tail through a second wiring element to form a second wiring structure, and then one end of each second wiring structure is electrically connected together through the second wiring element, and the other end of each second wiring structure is electrically connected to the outside through the second wiring element. By electrically connecting different wire ends to the first wiring element and the second wiring element respectively, the electrical connection of the wire ends can be transferred to the external space to avoid operation in a small space, and can also avoid connection defects such as cold soldering.

Description

Technical Field

[0001] The utility model relates to the technical field of power devices, in particular to a hollow cup winding structure, a micro motor and a power device. Background Art

[0002] During surgical operations, power devices are usually used for milling, drilling and other operations. Micromotors are the core components that provide rotational driving force in power devices, and the stability of micromotors directly affects the efficiency of surgery. In traditional micromotors, the wire ends in the hollow cup winding structure are connected by direct soldering or crimping terminals. Due to the limited space on the micromotor, it is not only inconvenient to operate, but also prone to connection defects such as cold soldering. Utility Model Content

[0003] Based on this, it is necessary to provide a hollow cup winding structure, a micro motor and a power device to address the problems of not only inconvenient operation but also prone to connection defects such as cold soldering.

[0004] The technical solution is as follows:

[0005] On the one hand, a hollow cup winding structure is provided, comprising:

[0006] A hollow wire cup, wherein the hollow wire cup comprises at least three phase wires, each of the phase wires comprises at least two windings, and each of the windings comprises at least two turns;

[0007] A mounting frame, wherein the mounting frame is provided with a mounting cavity with openings on both sides, and the hollow wire cup is plugged and matched with the mounting cavity through one of the openings on one side;

[0008] a first wiring element, wherein the first wiring element is disposed in the installation cavity, and all the turns belonging to the same winding are connected in series end to end through the first wiring element to form a first wiring structure, and the first wiring structure has a head end and a tail end disposed at intervals; and

[0009] A second wiring element, wherein the second wiring element is arranged at the opening on the other side of the mounting frame, and the head end and the tail end of each of the first wiring structures belonging to the same phase line are connected in series through the second wiring element to form a second wiring structure; one end of each of the second wiring structures is electrically connected to each other through the second wiring element, and the other end of each of the second wiring structures is electrically connected to the outside through the second wiring element.

[0010] The technical solution is further described below:

[0011] In one embodiment, the first wiring element is configured as a circuit board structure having a first middle through hole, and the outer peripheral side of the first wiring element is connected and matched with the inner wall of the mounting frame; the second wiring element is configured as a circuit board structure having a second middle through hole, and a portion of the board surface of the second wiring element is connected and matched with the end face of the opening of the mounting frame.

[0012] In one embodiment, at least six wire-holding grooves are provided on the side of the first wiring element, and each of the wire-holding grooves is arranged in a one-to-one correspondence with each of the wire turns and is snap-fitted; and / or, at least six wire-passing holes are provided on the side of the first wiring element, and each of the wire-passing holes is arranged in a one-to-one correspondence with the head end and the tail end of each of the first connection structures and is plug-fitted.

[0013] In one embodiment, a conductive sheet for connecting the turns in series from end to end to form a first wiring structure is laid on the board surface of the first wiring element.

[0014] In one embodiment, the hollow hole of the hollow wire cup, the opening of the mounting frame, the first middle through hole and the second middle through hole are correspondingly connected; the hollow cup winding structure also includes an insulating sleeve, which is at least partially arranged in the mounting cavity, and the outer wall of the insulating sleeve is sealed and fitted with the inner wall of the first middle through hole and the inner wall of the second middle through hole, and the insulating sleeve, the first wiring element, the mounting frame and the second wiring element are surrounded by a sealing cavity for setting potting glue.

[0015] In one of the embodiments, a mounting flange is provided on the inner side wall of the mounting cavity, the first wiring element is arranged in close contact with the mounting flange, and one side of the insulating sleeve is sealingly fitted with the mounting flange.

[0016] In one of the embodiments, the hollow cup winding structure further includes an insulating sleeve, which is sleeved on the outer wall of the hollow wire cup, and the insulating sleeve is plugged into and matched with the installation cavity through an opening on one side thereof and is in contact with the installation flange.

[0017] In one embodiment, the coreless cup winding structure further includes an abutting element, one side of the abutting element abuts with the first wiring element, and the other side of the abutting element abuts with the second wiring element.

[0018] On the other hand, a micromotor is provided, comprising a housing and the hollow cup winding structure, wherein the hollow cup winding structure is rotatably disposed in the housing.

[0019] On the other hand, a power device is provided, including an actuator and the micromotor, wherein the micromotor is transmission-connected to the actuator to drive the actuator to rotate.

[0020] The hollow cup winding structure, micromotor and power device of the above-mentioned embodiments connect all the turns in the same winding in series through the first wiring element to form a first wiring structure, and connect the head end and the tail end of the first wiring structure of the same phase line in series through the second wiring element to form a second wiring structure, and then electrically connect one end of each second wiring structure together through the second wiring element, and electrically connect the other end of each second wiring structure to the outside through the second wiring element. By electrically connecting different wire ends to the first wiring element and the second wiring element respectively, the electrical connection of the wire ends can be transferred to the external space to avoid operation in a small space, and can also avoid connection defects such as cold soldering. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and the description thereof are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 A schematic structural diagram of a hollow cup winding structure according to an embodiment;

[0024] Figure 2 for Figure 1 A schematic structural diagram of a first wiring element of a hollow cup winding structure;

[0025] Figure 3 for Figure 1 Winding connection diagram of hollow cup winding structure;

[0026] Figure 4 for Figure 3 Winding connection schematic diagram of hollow cup winding structure;

[0027] Figure 5 for Figure 1 Schematic diagram of the structure of the second wiring element of the hollow cup winding structure.

[0028] Description of reference numerals:

[0029] 10. Hollow cup winding structure; 100. Hollow wire cup; 110. Phase wire; 111. Winding; 1111. Turn wire; 200. Mounting frame; 210. Mounting flange; 220. Mounting cavity; 300. First wiring element; 310. Conductive sheet; 320. First middle through hole; 330. Wire clamping groove; 340. Wire through hole; 400. First wiring structure; 500. Second wiring element; 510. Second middle through hole; 600. Second wiring structure; 700. Abutment element; 800. Insulation sleeve; 900. Insulation sleeve. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0031] In one embodiment, a power device is provided, including an actuator and a micromotor, wherein the micromotor and the actuator are connected to each other by plugging or snapping, so that the micromotor drives the actuator to rotate as power output, so as to stably and reliably drive the surgical tool to perform milling, drilling and other operations.

[0032] The surgical tool may be a hollow tool such as a planer, which is not limited here.

[0033] like Figure 1 As shown, in one embodiment, a micromotor is provided, including a housing and a hollow cup winding structure 10. The hollow cup winding structure 10 can be rotatably arranged in the housing, so as to output rotational driving kinetic energy to the outside. In addition, the wire ends in the winding 111 in the hollow cup winding structure 10 can be simply and conveniently electrically connected, and welding defects such as cold welding will not occur, thereby ensuring the stability of the micromotor.

[0034] like Figure 1 As shown, in one embodiment, a hollow cup winding structure 10 is provided, including a hollow wire cup 100 , a mounting frame 200 , a first wiring element 300 , and a second wiring element 500 .

[0035] like Figure 3 and Figure 4 As shown, the hollow wire cup 100 includes at least three phase wires 110, each phase wire 110 includes at least two windings 111, and each winding 111 includes at least two turns 1111. The number of phase wires 100 is a multiple of three, such as three, six, nine, etc., so that it can be evenly divided into three-phase electricity, such as Figure 4 In the illustrated example, three phase lines 100 are provided, each corresponding to one phase of electricity.

[0036] The mounting frame 200 may be in a circular ring structure. The mounting frame 200 is provided with a mounting cavity 220 with openings on both sides, that is, both sides of the mounting cavity 220 have openings. The hollow wire cup 100 is plugged into the mounting cavity 220 through one of the openings to achieve assembly connection between the two.

[0037] like Figure 1 and Figure 2 As shown, the first wiring element 300 can be in the form of a circuit board. The first wiring element 300 is arranged in the installation cavity 220 in the form of a clip connection or a plug connection. Further, the first wiring element 300 is connected and matched with the inner wall of the mounting frame 200. In addition, all the turns 1111 belonging to the same winding 111 are connected in series end to end through the first wiring element 300 in the form of welding or crimping to form a first connection structure 400. In addition, the first connection structure 400 has a head end and a tail end arranged at intervals.

[0038] In one embodiment, a winding 111 has two turns 1111, and one end of the first turn 1111 and one end of the second turn 1111 are electrically connected on the first wiring element 300 to form a first wiring structure 400. At this time, the head end and the tail end of the first wiring structure 400 are the other end of the first turn 1111 and the other end of the second turn 1111, and the head end and the tail end of the first wiring structure 400 are spaced apart from each other and are not electrically connected on the first wiring element 300.

[0039] In one embodiment, a winding 111 has three turns 1111, and one end of the first turn 1111 is electrically connected to one end of the second turn 1111 on the first wiring element 300, and the other end of the second turn 1111 is electrically connected to one end of the third turn 1111 on the first wiring element 300, thereby forming a first wiring structure 400. At this time, the head end and the tail end of the first wiring structure 400 are the other end of the first turn 1111 and the other end of the third turn 1111, and the head end and the tail end of the first wiring structure 400 are spaced from each other and are not electrically connected on the first wiring element 300.

[0040] like Figure 1 and Figure 5As shown, the second wiring element 500 can be in the form of a circuit board. The second wiring element 500 is arranged at the opening on the other side of the mounting frame 200, so that the second wiring element 500 and the first wiring element 300 are arranged axially spaced from each other along the mounting cavity 220. For example, the second wiring element 500 can be bonded or welded to the end surface of the opening on the other side of the mounting frame 200. In addition, the head end and the tail end of each first connection structure 400 belonging to the same phase line 110 are connected in series by welding or crimping through the second wiring element 500 to form a second connection structure 600. In addition, one end of each second connection structure 600 is electrically connected to each other by welding or crimping through the second wiring element 500, and the other end of each second connection structure 600 is electrically connected to the outside by welding or crimping.

[0041] In one embodiment, a winding 111 has two turns 1111, a phase line 110 has two windings 111, and the hollow wire cup 100 includes two phase lines 110. One end of the first turn 1111 of the first winding 111 of the first phase line 110 and one end of the second turn 1111 are electrically connected on the first wiring element 300 to form a first first wiring structure 400, one end of the first turn 1111 of the second winding 111 of the first phase line 110 and one end of the second turn 1111 are electrically connected on the first wiring element 300 to form a second first wiring structure 400, and the head end of the first first wiring structure 400 and the tail end of the second first wiring structure 400 are electrically connected on the second wiring element 500 to form a first second wiring structure 600. One end of the first turn 1111 of the first winding 111 of the second phase line 110 and one end of the second turn 1111 are electrically connected on the first wiring element 300, thereby forming a third first wiring structure 400. One end of the first turn 1111 of the second winding 111 of the second phase line 110 and one end of the second turn 1111 are electrically connected on the first wiring element 300, thereby forming a second first wiring structure 400. The head end of the first first wiring structure 400 and the tail end of the second first wiring structure 400 are electrically connected on the second wiring element 500, thereby forming a second second wiring structure 600. One end of the first second wiring structure 600 and one end of the second second wiring structure 600 are electrically connected on the second wiring element 500, the other end of the first second wiring structure 600 is electrically connected to the outside on the second wiring element 500, and the other end of the second second wiring structure 600 is electrically connected to the outside on the second wiring element 500.

[0042] In the hollow cup winding structure 10 of the above-mentioned embodiment, all the turns 1111 in the same winding 111 are connected in series head to tail through the first wiring element 300 to form a first wiring structure 400, and the head end and the tail end of the first wiring structure 400 of the same phase line 110 are connected in series head to tail through the second wiring element 500 to form a second wiring structure 600, and then one end of each second wiring structure 600 is electrically connected together through the second wiring element 500, and the other end of each second wiring structure 600 is electrically connected to the outside through the second wiring element 500. By electrically connecting different wire ends on the first wiring element 300 and the second wiring element 500 respectively, the electrical connection of the wire ends can be transferred to the external space to avoid operation in a small space, and can also avoid connection defects such as cold soldering.

[0043] As a preferred embodiment, the first wiring element 300 is configured as a circuit board structure having a first middle through hole 320, and the outer peripheral side of the first wiring element 300 is connected and matched with the inner wall of the mounting frame 200 by interference fitting or the like, thereby realizing the assembly and fixation of the first wiring element 300 and the mounting frame 200. The second wiring element 500 is configured as a circuit board structure having a second middle through hole 510, and a part of the board surface of the second wiring element 500 is connected and matched with the end surface of the opening of the mounting frame 200 by bonding or welding enameled wire or the like, thereby realizing the assembly and fixation of the second wiring element 500 and the mounting frame 200.

[0044] like Figure 2 As shown, in one embodiment, at least six wire clamping grooves 330 are provided on the side of the first wiring element 300, and each wire clamping groove 330 is arranged and clamped with each wire turn 1111 in a one-to-one correspondence. In this way, the wire turns 1111 are clamped by the wire clamping grooves 330 to prevent the wire turns 1111 from moving randomly, which is not only conducive to achieving electrical connection of the wire ends of the wire turns 1111 on the first wiring element 300 through welding or crimping, but also avoids the problem of poor connection or unreliable connection caused by the random movement of the wire turns 1111 after the electrical connection is achieved.

[0045] The side of the first wiring element 300 may be the inner side or the outer peripheral side thereof.

[0046] like Figure 2 As shown, in one embodiment, at least six wire-passing holes 340 are provided on the side of the first wiring element 300, and each wire-passing hole 340 is arranged one-to-one with the head end and the tail end of each first wiring structure 400 and plugged in. In this way, the head end and the tail end of the first wiring structure 400 can pass through the wire-passing holes 340 to achieve electrical connection on the second wiring element 500.

[0047] like Figure 2As shown, in addition, a conductive sheet 310 for electrically connecting the ends of the turns 1111 to form the first wiring structure 400 is laid on the board surface of the first wiring element 300. In this way, the ends of the different turns 1111 can be electrically connected by simply fixing the beginning and the end of the different turns 1111 to the ends of the conductive sheet 310 by welding or the like, which is simple to operate and reduces the strength of the electrical connection.

[0048] The conductive sheet 310 is made of conductive materials such as solder and can be disposed on the circuit board of the first wiring element 300 by plating. The extension track of the conductive sheet 310 can be in the shape of an arch bridge or a parabola.

[0049] like Figure 1 , Figure 2 and Figure 5 As shown, in one embodiment, the hollow hole of the hollow wire cup 100, the opening of the mounting frame 200, the first middle through hole 320 and the second middle through hole 510 are correspondingly connected. In addition, the hollow cup winding structure 10 further includes an insulating sleeve 800, which is at least partially disposed in the mounting cavity 220, and the outer wall of the insulating sleeve 800 is sealed and fitted with the inner wall of the first middle through hole 320 and the inner wall of the second middle through hole 510. In addition, the insulating sleeve 800, the first wiring element 300, the mounting frame 200 and the second wiring element 500 are surrounded by a sealing cavity for setting a potting glue. In this way, the potting glue can be injected into the sealing cavity to further package and assemble the first wiring element 300 and the second wiring element 500, so as to prevent the first wiring element 300 and the second wiring element 500 from moving relative to the mounting frame 200, thereby preventing the electrical connection parts from being damaged or damaged.

[0050] The central axis of the first middle through hole 320 , the central axis of the second middle through hole 510 , and the central axis of the installation cavity 220 are collinear.

[0051] In one embodiment, the side of the first wiring element 300 can be a side close to the first middle through hole 320, that is, the wire clamping groove 330 and / or the wire hole 340 can be set on a side close to the first middle through hole 320 to facilitate wiring and avoid interference or influence on the installation of the first wiring element 300 in the installation cavity 220.

[0052] like Figure 1As shown, further, the inner wall of the mounting cavity 220 is provided with a mounting flange 210, and the first wiring element 300 is arranged in close contact with the mounting flange 210, so that the first wiring element 300 is supported and positioned by the mounting flange 210 to complete the assembly connection between the first wiring element 300 and the mounting frame 200. In addition, one side of the insulating sleeve 800 is sealed and in close contact with the mounting flange 210, so that the insulating sleeve 800 is supported and supported by the mounting flange 210 to ensure that the filling glue in the sealing glue cavity will not leak.

[0053] like Figure 1 As shown, further, the hollow cup winding structure 10 further includes an insulating sleeve 900, which is sleeved on the outer wall of the hollow wire cup 100, so that the hollow wire cup 100 is insulated and protected by the insulating sleeve 900. The insulating sleeve 900 is plugged into the installation cavity 220 through one side opening thereof and is in conflict with the installation flange 210, so that the mounting frame 200 and the hollow wire cup 100 are stably and reliably assembled and connected.

[0054] The insulating sleeve 900 may be made of epoxy resin.

[0055] like Figure 1 As shown, in addition, the hollow cup winding structure 10 further includes an abutting element 700. One side of the abutting element 700 abuts and cooperates with the first wiring element 300, and the other side of the abutting element 700 abuts and cooperates with the second wiring element 500. In this way, after the first wiring element 300 is installed in the installation cavity 220, the connection between the second wiring element 500 and the mounting frame 200 and the abutment of the abutting element 700 on the first wiring element 300 are used to ensure that the first wiring element 300 does not move axially, thereby avoiding poor connection problems such as welding damage caused by the movement of the first wiring element 300.

[0056] Optionally, the abutting element 700 may be in the form of an abutting sleeve or an abutting column. The abutting element 700 may be made of elastic material and utilize elastic deformation to press the first wiring element 300 to avoid damage to the first wiring element 300 and to avoid interference or influence on the assembly connection between the second wiring element 500 and the mounting frame 200.

[0057] It should be noted that "some body" or "some part" can be a part of the corresponding "component", that is, "some body" or "some part" can be integrally formed with the "other parts of the component"; it can also be an independent component that can be separated from the "other parts of the component", that is, "some body" or "some part" can be manufactured independently and then combined with the "other parts of the component" into a whole. The expression of the above-mentioned "some body" or "some part" in this application is only one of the embodiments, for the convenience of reading, and not to limit the scope of protection of this application. As long as it contains the above-mentioned features and has the same function, it should be understood as an equivalent technical solution of this application.

[0058] It should be noted that the components included in the "unit", "assembly", "mechanism" and "device" of this application can also be flexibly combined, that is, modular production can be carried out according to actual needs to facilitate modular assembly. The division of the above components in this application is only one of the embodiments, for the convenience of reading, and not to limit the scope of protection of this application. As long as the above components are included and have the same functions, it should be understood that it is an equivalent technical solution of this application.

[0059] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention 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 on the present invention. The term "and / or" used in the present invention includes any and all combinations of one or more related listed items.

[0060] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0061] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0063] It should be noted that when an element is referred to as being "fixed on", "set on", "fixed on" or "installed on" another element, it can be directly on the other element or there can be a central element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be a central element at the same time. Further, when an element is considered to be "fixed transmission connected" to another element, the two can be fixed in a detachable connection manner or in a non-detachable connection, as long as power transmission can be achieved, such as socketing, snap-on, one-piece molding fixation, welding, etc., which can be achieved in the prior art and will not be repeated here. When an element is perpendicular or approximately perpendicular to another element, it means that the ideal state of the two is vertical, but due to the influence of manufacturing and assembly, there may be a certain vertical error. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0064] It should also be understood that when explaining the connection relationship or positional relationship of elements, although not explicitly described, the connection relationship and positional relationship are interpreted as including an error range, which should be within the acceptable deviation range of a specific value determined by those skilled in the art. For example, "approximately", "approximately" or "substantially" may mean within one or more standard deviations, which are not limited here.

[0065] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0066] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A hollow cup winding structure, characterized in that: include: A hollow wire cup, wherein the hollow wire cup comprises at least three phase wires, each of the phase wires comprises at least two windings, and each of the windings comprises at least two turns; A mounting frame, wherein the mounting frame is provided with a mounting cavity with openings on both sides, and the hollow wire cup is plugged and matched with the mounting cavity through one of the openings on one side; a first wiring element, wherein the first wiring element is disposed in the installation cavity, and all the turns belonging to the same winding are connected in series end to end through the first wiring element to form a first wiring structure, and the first wiring structure has a head end and a tail end disposed at intervals; and A second wiring element, wherein the second wiring element is arranged at the opening on the other side of the mounting frame, and the head end and the tail end of each of the first wiring structures belonging to the same phase line are connected in series through the second wiring element to form a second wiring structure; one end of each of the second wiring structures is electrically connected to each other through the second wiring element, and the other end of each of the second wiring structures is electrically connected to the outside through the second wiring element.

2. The hollow cup winding structure according to claim 1, characterized in that: The first wiring element is configured as a circuit board structure having a first middle through hole, and the outer peripheral side of the first wiring element is connected and matched with the inner wall of the mounting frame; the second wiring element is configured as a circuit board structure having a second middle through hole, and a portion of the board surface of the second wiring element is connected and matched with the end surface at the opening of the mounting frame.

3. The hollow cup winding structure according to claim 2, characterized in that: The side of the first wiring element is provided with at least six wire clamping grooves, each of which is arranged in a one-to-one correspondence with each of the turns of wire and is snap-fitted; and / or, the side of the first wiring element is provided with at least six wire passing holes, each of which is arranged in a one-to-one correspondence with the head end and the tail end of each of the first connection structures and is plug-fitted.

4. The hollow cup winding structure according to claim 2, characterized in that: A conductive sheet for connecting the turns in series from end to end to form a first wiring structure is laid on the plate surface of the first wiring element.

5. The hollow cup winding structure according to claim 2, characterized in that: The hollow hole of the hollow wire cup, the opening of the mounting frame, the first middle through hole and the second middle through hole are correspondingly connected; the hollow cup winding structure also includes an insulating sleeve, which is at least partially arranged in the mounting cavity, and the outer wall of the insulating sleeve is sealed and fitted with the inner wall of the first middle through hole and the inner wall of the second middle through hole, and the insulating sleeve, the first wiring element, the mounting frame and the second wiring element are surrounded by a sealing cavity for setting potting glue.

6. The hollow cup winding structure according to claim 5, characterized in that: The inner side wall of the installation cavity is provided with an installation flange, the first wiring element is arranged in close contact with the installation flange, and one side of the isolation sleeve is sealingly fitted with the installation flange.

7. The hollow cup winding structure according to claim 6, characterized in that: The hollow cup winding structure also includes an insulating sleeve, which is sleeved on the outer side wall of the hollow wire cup. The insulating sleeve is plug-fitted with the installation cavity through an opening on one side thereof and is in abutting engagement with the installation flange.

8. The hollow cup winding structure according to any one of claims 1 to 7, characterized in that: The coreless cup winding structure further includes an abutting element, one side of which is in abutment with the first wiring element, and the other side of which is in abutment with the second wiring element.

9. A micromotor, characterized in that: It comprises a shell and a hollow cup winding structure as claimed in any one of claims 1 to 8, wherein the hollow cup winding structure is rotatably arranged in the shell.

10. A power device, characterized in that: It comprises an actuator and the micromotor as claimed in claim 9, wherein the micromotor is transmission-connected with the actuator to drive the actuator to rotate.

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