Screw stator

Abstract

The utility model provides a screw stator, including a hollow shaft core and a motor stator sleeved on the outside of the shaft core, the motor stator including an inner ring, a tooth crown extending outward around the inner ring, the tooth crown being used to wind copper wire (not shown in the figure), first through holes communicating with each other are provided at both ends of the shaft core, a second through hole is provided on the side wall of the shaft core, and a plurality of wire grooves are provided around the shaft core between the inner ring and the shaft core. After winding the tooth crown, the copper wire will first be gathered in the wire groove, and then enter the shaft core from the second through hole along the outer wall of the shaft core from the wire groove, and then be led out from the first through hole to connect to the external circuit. The present application hides the copper wire inside by providing a wire groove on the outer circle of the shaft core at the matching position of the shaft core and the stator, thereby preventing the copper wire from warping during the operation of the motor, thereby scratching and generating noise.

Description

Technical Field

[0001] The utility model relates to the field of motors, in particular to a screw stator. Background Art

[0002] The screw stator is an accessory used in external rotor motors. Its structure is that a threaded shaft core is installed in the middle of the stator. For example, in the field of ceiling fan lamps, one end of the shaft core is used to install the lamp, and the other end is used to screw it on the roof. The outside of the stator is used to install the fan. Since the inside of the shaft core is hollow, the wires connecting the lamp and the copper wire on the stator are generally connected to the outside through the inside of the shaft core.

[0003] In the prior art, when the copper wire on the stator enters the shaft core, it will be lifted up during the operation of the motor. The lifted copper wire may be scratched and generate noise when the outer rotor rotates. Utility Model Content

[0004] In order to solve the above problems, the present application provides a screw stator, including a hollow shaft core and a motor stator sleeved on the outside of the shaft core, the motor stator including an inner ring, a tooth crown extending outward around the inner ring, the tooth crown is used to wind a copper wire (not shown in the figure), and first through holes communicating with each other are provided at both ends of the shaft core, a second through hole is opened on the side wall of the shaft core, and a plurality of wire grooves are provided around the shaft core between the inner ring and the shaft core.

[0005] Furthermore, a connecting ring is arranged on the outer wall of the shaft core, the motor stator is sleeved on the outer side of the connecting ring, and the wire accommodating groove is arranged inside the connecting ring.

[0006] Furthermore, a baffle is provided on one side of the wire accommodating trough.

[0007] Furthermore, a first limiting block is provided on the connecting ring, and a first limiting groove matching the shape of the first limiting block is provided on the inner circular ring of the motor stator.

[0008] Furthermore, a second limiting block is arranged on the baffle, and a second limiting groove matching the shape of the second limiting block is arranged on the inner ring of the motor stator.

[0009] Furthermore, a threaded portion is provided on the axial wall of the first through hole.

[0010] Furthermore, a through groove is provided on the threaded portion close to the second through hole.

[0011] Furthermore, the tooth crown divides the outer circumference of the motor stator into a plurality of tooth slots, and stator tooth poles are arranged at the ends of the tooth crown.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The present application provides a wire-accommodating groove on the outer circle of the shaft core at the matching position between the shaft core and the stator to hide the copper wire inside, thereby preventing the copper wire from warping up during the operation of the motor, thereby causing scratching and generating noise.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 This is a schematic diagram of the overall structure of the screw stator of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the shaft core of the screw stator of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the shaft core of the screw stator of the utility model from another angle;

[0019] Figure 4 It is a structural schematic diagram of the motor stator of the screw stator of the utility model;

[0020] The reference numerals and names in the figures are as follows:

[0021] The shaft core 100, the motor stator 200, the inner ring 210, the tooth crown 220, the first through hole 110, the second through hole 120, the wire groove 130, the connecting ring 140, the first limiting block 141, the baffle 131, the first limiting groove 211, the second limiting block 132, the second limiting groove 212, the threaded portion 150, the through groove 151, the tooth groove 230, and the stator tooth pole 221. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] The present invention is described in more detail. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween.

[0024] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, vertical, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself. In the description of the present invention, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning, and therefore cannot be understood as limiting the scope of protection of the present invention. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0025] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in this specification in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0026] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0027] The preferred implementation of the utility model is now further described in conjunction with the accompanying drawings. Figures 1 to 4As shown, a screw stator includes a hollow shaft core 100 and a motor stator 200 sleeved on the outside of the shaft core 100, wherein the motor stator 200 includes an inner ring 210, and a tooth crown 220 is provided around the inner ring 210 and extends outward, and the tooth crown 220 is used to wind a copper wire (not shown in the figure), and first through holes 110 are provided at both ends of the shaft core 100, and a second through hole 120 is provided on the side wall of the shaft core 100, and the copper wire wound on the tooth crown 220 passes through the second through hole 120 from the tooth crown 220 into the shaft core 100 and then leads out from the first through hole 110 After that, the external circuit is connected. A plurality of wire-accommodating grooves 130 are arranged around the shaft core 100 between the inner ring 210 and the shaft core 100. After the copper wire is wound around the tooth crown 220, it will first be gathered in the wire-accommodating grooves 130, and then enter the shaft core 100 from the second through hole 120 along the outer wall of the shaft core 100 from the wire-accommodating grooves 130, and then be led out from the first through hole 110 to connect to the external circuit. The present application hides the copper wire inside by opening the wire-accommodating grooves 130 on the outer circle of the shaft core 100 at the position where the shaft core 100 cooperates with the stator, thereby preventing the copper wire from curling up during the operation of the motor, thereby scratching and generating noise.

[0028] On the basis of the above embodiments, Figure 2 and Figure 3 As shown, a connecting ring 140 is provided on the outer wall of the shaft core 100 , the motor stator 200 is sleeved on the outer side of the connecting ring 140 , the wire accommodating groove 130 is provided in the connecting ring 140 , and a baffle 131 is provided on one side of the wire accommodating groove 130 .

[0029] On the basis of the above embodiments, Figure 2 and Figure 3 As shown, a first limit block 141 is provided on the connecting ring 140, and a first limit groove 211 matching the shape of the first limit block 141 is provided on the inner ring 210 of the motor stator 200. When the shaft core 100 needs to be inserted into the motor stator 200, the first limit block 141 can be inserted into the first limit groove 211, thereby facilitating the installation and positioning between the two.

[0030] On the basis of the above embodiments, Figure 2 and Figure 3As shown, a second limit block 132 is provided on the baffle 131, and a second limit groove 212 which matches the shape of the second limit block 132 is provided on the inner ring 210 of the motor stator 200. When the shaft core 100 needs to be inserted into the motor stator 200, the second limit block 132 can be inserted into the second limit groove 212. The second limit block 132 and the second limit groove 212 can cooperate with the first limit block 141 and the first limit groove 211 to make the positioning between the motor stator 200 and the shaft core 100 more precise.

[0031] On the basis of the above embodiments, Figure 2 and Figure 3 As shown, a threaded portion 150 is provided on the shaft wall of the first through hole 110, and the threaded portion 150 is used to install other external components. For example, when the present application is applied to a ceiling fan lamp, the threaded portion 150 is used to install a bulb and fix

[0032] On the basis of the above embodiments, Figure 2 and Figure 3 As shown, a through groove 151 is provided on the threaded portion 150 near the second through hole 120. When the threaded portion 150 is screwed onto the external component, the copper wire passes through the second through hole 120 from the tooth crown 220 into the interior of the shaft core 100 and then is led out from the first through hole 110. It can be connected to the circuit of the external circuit through the through groove 151.

[0033] On the basis of the above embodiments, Figure 4 As shown, the tooth crown 220 divides the outer circumference of the motor stator 200 into a plurality of tooth slots 230 , and a stator tooth pole 221 is disposed at the end of the tooth crown 220 .

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in this application.

Claims

1. A screw stator, characterized in that: The invention comprises a hollow shaft core (100) and a motor stator (200) sleeved on the outside of the shaft core (100), wherein the motor stator (200) comprises an inner ring (210), a tooth crown (220) is arranged around the inner ring (210) and extends outward, and the tooth crown (220) is used for winding copper wire, first through holes (110) are arranged at both ends of the shaft core (100), a second through hole (120) is opened on the side wall of the shaft core (100), and a plurality of wire accommodating grooves (130) are arranged around the shaft core (100) between the inner ring (210) and the shaft core (100).

2. The screw stator according to claim 1, characterized in that: A connecting ring (140) is arranged on the outer wall of the shaft core (100), the motor stator (200) is sleeved on the outer side of the connecting ring (140), and the wire accommodating groove (130) is arranged inside the connecting ring (140).

3. The screw stator according to claim 2, characterized in that: A baffle (131) is provided on one side of the wire accommodating groove (130).

4. The screw stator according to claim 3, characterized in that: A first limiting block (141) is also provided on the connecting ring (140), and a first limiting groove (211) matching the shape of the first limiting block (141) is provided on the inner ring (210) of the motor stator (200).

5. The screw stator according to claim 4, characterized in that: A second limiting block (132) is also provided on the baffle (131), and a second limiting groove (212) matching the shape of the second limiting block (132) is provided on the inner ring (210) of the motor stator (200).

6. The screw stator according to claim 1, characterized in that: A threaded portion (150) is provided on the axial wall of the first through hole (110).

7. The screw stator according to claim 6, characterized in that: A through groove (151) is provided on the threaded portion (150) close to the second through hole (120).

8. The screw stator according to any one of claims 1 to 7, characterized in that: The tooth crown (220) divides the outer circumference of the motor stator (200) into a plurality of tooth slots (230), and a stator tooth pole (221) is arranged at the end of the tooth crown (220).

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