Stator structure and fan electric motor

Abstract

Disclosed are a stator structure and a fan electric motor, which belong to the technical field of electric motors. The stator structure comprises a core (1), a framework (2), a winding (3), a wire clamp (4) and a plastic package body (5), wherein the framework (2) is arranged on the core (1); the winding (3) is wound on the framework (2); a positioning portion (21) is provided at the edge of the framework (2), and the positioning portion (21) is exposed from the core (1); the wire clamp (4) is provided with a mounting portion (41), and the mounting portion (41) is mounted on the positioning portion (21); and the plastic package body (5) covers the core (1), the framework (2), the winding (3) and the wire clamp (4). According to the stator structure and the fan electric motor, the positioning portion (21) exposed from the core (1) is provided at the edge of the framework (2); meanwhile, the mounting portion (41) matching with the positioning portion (21) is provided on the wire clamp (4), such that the wire clamp (4) can be fixed to the framework (2), and there is no need to manually push the wire clamp (4) into an injection molding mold cavity during injection molding, thereby ensuring the quality of the stator structure.

Description

Stator structure and fan motor Technical Field

[0001] The utility model belongs to the technical field of motors, and in particular relates to a stator structure and a fan motor. Background Art

[0002] Motors are widely used in various electrical equipment in industrial production and daily life. In order to increase the service life of the motor and enable the motor to be used in harsh environments, the stator is usually sealed by injection molding. However, when the stator is sealed, the high temperature can easily cause the packaging skin wrapped around the lead wire to melt, resulting in leakage. To prevent this from happening, the existing technology uses wire clamps to wrap the lead wires to prevent the packaging skin wrapped around the lead wires from melting. However, the wire clamps need to be manually pushed into the injection mold cavity during injection molding, and manual pushing cannot ensure that the wire clamps are in the predetermined position in the injection mold cavity. Therefore, the quality of the stator will be affected.

[0003] Therefore, the existing technology needs to be improved and developed. Utility Model Content

[0004] The purpose of the utility model is to provide a stator structure and a fan motor, which can ensure the quality of the stator structure.

[0005] In the first aspect, the utility model provides a stator structure, including an iron core, a skeleton, a winding, a wire clamp and a plastic packaging body, wherein the skeleton is arranged on the iron core, the winding is wound on the skeleton, the edge of the skeleton has a positioning portion, the positioning portion is exposed from the iron core, the wire clamp is provided with an installation portion, the installation portion is installed on the positioning portion, and the plastic packaging body covers the iron core, the skeleton, the winding and the wire clamp.

[0006] The stator structure provided by the utility model is provided with a positioning portion exposed from the iron core at the edge of the frame, and at the same time, a mounting portion adapted to the positioning portion is provided on the wire clamp, so that the wire clamp can be fixed on the frame, thereby eliminating the need to manually push the wire clamp into the injection mold cavity during injection molding, thereby ensuring the quality of the stator structure.

[0007] Furthermore, the positioning portion includes a positioning groove, and the mounting portion includes a mounting plug-in block, and the mounting plug-in block is inserted into the positioning groove.

[0008] The utility model can quickly install and fix the wire clamp on the frame through the cooperation of the positioning groove and the installation plug block.

[0009] Furthermore, the positioning portion further includes a positioning plate, the mounting portion further includes a mounting slot, and the positioning plate is inserted into the mounting slot.

[0010] The utility model makes the wire clamp more firmly installed on the frame by cooperating with the positioning plate and the installation groove.

[0011] Furthermore, the number of the positioning plates is two, the number of the mounting slots is also two, the two positioning plates are respectively located on both sides of the positioning groove, and the two mounting slots are respectively located on both sides of the mounting plug.

[0012] Furthermore, the positioning portion includes two positioning pins, the mounting portion includes two mounting holes, and the two positioning pins are respectively inserted into the two mounting holes.

[0013] Furthermore, the wire clamp comprises a first clamp and a second clamp that are detachably connected, and opposite surfaces of the first clamp and the second clamp each have a wire groove that is adapted to the shape of the lead wire.

[0014] Furthermore, the first clip is provided with a socket, and the second clip is provided with a pin, which is inserted into the socket.

[0015] Furthermore, the inner side wall of the above-mentioned socket has an inwardly protruding retaining ring, and the end of the pin away from the second clamp has a connecting head, and the connecting head is clamped on the retaining ring.

[0016] Furthermore, the connector includes a plurality of elastic connecting blocks, and when the connector passes through the retaining ring, the plurality of connecting blocks can shrink inwards.

[0017] In the second aspect, the utility model provides a fan motor, including a shell, a rotor and a tail gear box, and also includes the stator structure described in the first aspect above; the shell is arranged on the iron core and covers the plastic package body; the rotor is rotatably arranged on the inner side of the iron core, and the rotating shaft of the rotor passes through the shell; the tail gear box is arranged on the shell and connected to the rotating shaft of the rotor.

[0018] From the above, it can be seen that the stator structure and fan motor of the present invention are provided with a positioning portion exposed from the iron core on the edge of the frame. At the same time, a mounting portion compatible with the positioning portion is provided on the wire clamp, so that the wire clamp can be fixed on the frame, thereby eliminating the need to manually push the wire clamp into the injection mold cavity during injection molding, thereby ensuring the quality of the stator structure.

[0019] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be achieved and obtained by the structures particularly pointed out in the written description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG1 is a schematic structural diagram of a stator structure provided by an embodiment of the present utility model.

[0021] FIG2 is a schematic structural diagram of a stator structure without a plastic package provided by an embodiment of the present invention.

[0022] FIG3 is a cross-sectional view of a stator structure provided by an embodiment of the present invention with the plastic package removed.

[0023] FIG4 is a schematic structural diagram of a wire clamp provided in an embodiment of the present utility model.

[0024] FIG5 is a schematic structural diagram of another stator structure provided by an embodiment of the present invention with the plastic package removed.

[0025] FIG6 is a cross-sectional view of another stator structure provided by an embodiment of the present invention with the plastic package removed.

[0026] FIG7 is an exploded schematic diagram of a wire clamp provided in an embodiment of the present utility model.

[0027] FIG8 is a cross-sectional view of a wire clamp provided in an embodiment of the present invention.

[0028] FIG9 is a schematic structural diagram of a fan motor provided by an embodiment of the present utility model.

[0029] FIG10 is a cross-sectional view of a fan motor provided in an embodiment of the present invention.

[0030] Explanation of reference numbers: 1. Iron core; 2. Skeleton; 21. Positioning part; 211. Positioning groove; 212. Positioning plate; 213. Positioning pin; 3. Winding; 4. Wire clamp; 41. Mounting part; 411. Mounting plug; 412. Mounting groove; 413. Mounting hole; 5. Plastic package; 6. First clamp; 61. Socket; 611. Retaining ring; 7. Second clamp; 71. Pin; 711. Connector; 7111. Connecting block; 8. Housing; 9. Rotor; 10. Tail gear box. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0033] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections, or mutual communication; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0034] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0035] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but a person of ordinary skill in the art will recognize the application of other processes and / or the use of other materials.

[0036] In the first aspect, as shown in Figures 1, 2, 3, and 4, the present invention provides a stator structure comprising an iron core 1, a frame 2, windings 3, a wire clamp 4, and a plastic encapsulation body 5. The frame 2 is disposed on the iron core 1, and the windings 3 are wound around the frame 2. The edge of the frame 2 has a positioning portion 21, which is exposed from the iron core 1. The wire clamp 4 has a mounting portion 41, which is mounted on the positioning portion 21. The plastic encapsulation body 5 covers the iron core 1, the frame 2, the windings 3, and the wire clamp 4.

[0037] In a specific application, first, the iron core 1, the skeleton 2 and the winding 3 are assembled to obtain component one, then, the lead wire of component one is fixed by using the wire clamp 4, and the mounting portion 41 of the wire clamp 4 is mounted on the positioning portion 21 of the skeleton 2 to obtain component two, and finally, component two is placed in an injection mold cavity for injection molding, so that a plastic package 5 covering the iron core 1, the skeleton 2, the winding 3 and the wire clamp 4 is formed on the outside of component two to obtain a stator structure.

[0038] Through this technical solution, the wire clamp 4 can be fixed on the frame 2, so that there is no need to manually push the wire clamp 4 into the injection mold cavity during injection molding, thereby ensuring the quality of the stator structure.

[0039] It should be noted that there are two ways to assemble the iron core 1, the frame 2, and the winding 3 to obtain the assembly 1. One is to first install the frame 2 on the iron core 1 and then wind the winding 3 on the frame 2. This method is called internal winding. The other is to first wind the winding 3 on the frame 2 and then install it on the iron core 1. This method is called external winding. Because the frame 2 structures used for internal winding and external winding are different, the structures of the positioning portion 21 and the mounting portion 41 are both different.

[0040] In some preferred embodiments, the positioning portion 21 includes a positioning groove 211, and the mounting portion 41 includes a mounting block 411, which is inserted into the positioning groove 211. In specific applications, the positioning groove 211 and the mounting block 411 cooperate to quickly secure the wire clip 4 to the frame 2.

[0041] To securely fasten the wire clamp 4 to the frame 2, in some preferred embodiments, the positioning portion 21 further includes a positioning plate 212, and the mounting portion 41 further includes a mounting slot 412, with the positioning plate 212 inserted into the mounting slot 412. The cooperation between the positioning plate 212 and the mounting slot 412, and the cooperation between the positioning groove 211 and the mounting insert 411, further securely fasten the wire clamp 4 to the frame 2. Specifically, there are two positioning plates 212 and two mounting slots 412, with the two positioning plates 212 positioned on either side of the positioning groove 211, and the two mounting slots 412 positioned on either side of the mounting insert 411. This ensures that the wire clamp 4 is evenly stressed when mounted on the frame 2.

[0042] As shown in Figures 5 and 6, in other preferred embodiments, the positioning portion 21 includes two positioning pins 213, and the mounting portion 41 includes two mounting holes 413. The two positioning pins 213 are respectively inserted into the two mounting holes 413. In specific applications, the positioning pins 213 cooperate with the mounting holes 413 to quickly secure the wire clip 4 to the frame 2.

[0043] It is understandable that, in order to enable a wire clamp 4 to be installed on two types of skeletons 2 , two types of positioning portions 21 may be provided on the wire clamp 4 at the same time.

[0044] As shown in Figures 7 and 8, in some preferred embodiments, the wire clamp 4 includes a detachably connected first clamp 6 and a second clamp 7. The opposing surfaces of the first clamp 6 and the second clamp 7 each have a wire groove adapted to the shape of the lead wire. In specific applications, by providing wire grooves adapted to the shape of the lead wire on the opposing surfaces of the first clamp 6 and the second clamp 7, the wire clamp 4 facilitates quick securing of the lead wire.

[0045] In some preferred embodiments, the first clip 6 is provided with an insertion hole 61, and the second clip 7 is provided with a latch 71, which is inserted into the insertion hole 61. In specific applications, by providing the insertion hole 61 on the first clip 6 and the latch 71 on the second clip 7, the latch 71 cooperates with the insertion hole 61 to achieve a quick connection between the first clip 6 and the second clip 7.

[0046] In some preferred embodiments, the inner sidewall of the insertion hole 61 has an inwardly protruding retaining ring 611, and the end of the latch 71 away from the second clamp 7 has a connector 711, which is locked in the retaining ring 611. In specific applications, by providing the inwardly protruding retaining ring 611 on the inner sidewall of the insertion hole 61 and the connector 711 on the end of the latch 71 away from the second clamp 7, the connector 711 cooperates with the stopper to achieve a secure connection between the first clamp 6 and the second clamp 7.

[0047] In some preferred embodiments, the connector 711 includes a plurality of elastic connecting blocks 7111, which can retract inward when the connector 711 passes through the retaining ring 611. In specific applications, the connector 711 is configured as a plurality of elastic connecting blocks 7111 to facilitate the connector 711 passing through the retaining ring 611.

[0048] In a second aspect, as shown in Figures 9 and 10, the present invention provides a fan motor comprising a housing 8, a rotor 9, and a tail gear housing 10, further comprising the stator structure of the first aspect described above. Housing 8 is disposed on an iron core 1 and is covered by a plastic encapsulation body 5. Rotor 9 is rotatably disposed within iron core 1, with its shaft extending through housing 8. Tail gear housing 10 is disposed on housing 8 and connected to the shaft of rotor 9.

[0049] In a specific application, the rotation of the rotor 9 drives the shaft to rotate, thereby driving the fan blades mounted on the shaft to rotate. During the rotation of the fan blades, the fan blades can be shaken by adjusting the tail gear box 10. Specifically, the tail gear box 10 can adopt a structure in the prior art.

[0050] To sum up, the stator structure and fan motor of the present invention are provided with a positioning portion 21 exposed from the iron core 1 on the edge of the frame 2, and at the same time, a mounting portion 41 adapted to the positioning portion 21 is provided on the wire clamp 4, so that the wire clamp 4 can be fixed on the frame 2, thereby eliminating the need to manually push the wire clamp 4 into the injection mold cavity during injection molding, thereby ensuring the quality of the stator structure.

[0051] The above descriptions are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A stator structure, comprising an iron core, a frame, a winding, a wire clamp and a plastic package, characterized in that: The frame is arranged on the iron core, the winding is wound on the frame, the edge of the frame has a positioning part, the positioning part is exposed from the iron core, the wire clamp is provided with a mounting part, the mounting part is mounted on the positioning part, and the plastic package covers the iron core, the frame, the winding and the wire clamp.

2. The stator structure according to claim 1, characterized in that The positioning portion includes a positioning groove, and the mounting portion includes a mounting plug-in block, and the mounting plug-in block is inserted into the positioning groove.

3. The stator structure according to claim 2, characterized in that: The positioning portion further includes a positioning plate, and the mounting portion further includes a mounting groove, and the positioning plate is inserted into the mounting groove.

4. The stator structure according to claim 3, characterized in that The number of the positioning plates is two, the number of the mounting grooves is also two, the two positioning plates are respectively located on both sides of the positioning groove, and the two mounting grooves are respectively located on both sides of the mounting plug block.

5. The stator structure according to claim 1, characterized in that The positioning portion includes two positioning pins, the mounting portion includes two mounting holes, and the two positioning pins are respectively inserted into the two mounting holes.

6. The stator structure according to claim 1, characterized in that The wire clamp comprises a first clamp and a second clamp which are detachably connected, and a surface opposite to the first clamp and the second clamp both have a wire groove which is adapted to the shape of the lead-out wire.

7. The stator structure according to claim 6, characterized in that The first clamp is provided with an insertion hole, and the second clamp is provided with a latch, and the latch is inserted into the insertion hole.

8. The stator structure according to claim 7, characterized in that The inner side wall of the insertion hole is provided with a retaining ring protruding inwardly, and the end of the latch away from the second clamp is provided with a connecting head, and the connecting head is clamped on the retaining ring.

9. The stator structure according to claim 8, characterized in that The connector includes a plurality of elastic connecting blocks. When the connector passes through the retaining ring, the plurality of connecting blocks can shrink inwardly.

10. A fan motor, comprising a housing, a rotor and a tail gear box, characterized in that: It also includes the stator structure described in any one of claims 1-9; the shell is arranged on the iron core and covers the plastic package body; the rotor is rotatably arranged on the inner side of the iron core, and the rotor shaft passes through the shell; the tail gear box is arranged on the shell and connected to the rotor shaft.

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