Line knotting structure of motor stator

Abstract

The utility model provides a wire connection structure of a motor stator. The wire connection structure comprises a wire connection module, a plurality of wires of at least one phase and a connection assembly. The wire binding module is provided with a plurality of holes and an accommodating space. The holes are communicated with the accommodating space, and the plurality of holes correspond to a plurality of end points of the motor stator. A plurality of wires of at least one phase are arranged in the accommodating space. The lead wire is composed of a wire material containing a wire sheath or a wire material having an insulating layer. The plurality of wires of at least one phase are electrically connected to the plurality of endpoints of the motor stator via the plurality of holes. The connection assembly connects a plurality of wires of at least one phase to a power device.

Description

Technical Field

[0001] The present disclosure relates to a wiring structure of a motor stator, and more particularly to a preformed wiring structure. Background Art

[0002] With the advancement of technology, the demand for small motors is increasing. For some high-power motors, the stator requires a large current, but it is difficult to complete the wiring in a limited space.

[0003] Traditionally, printed circuit boards (PCBs) have been used to create wiring connections. However, due to the high current requirements, the number of PCB layers increases, hindering miniaturization. Furthermore, this increased number of layers can lead to severe heat accumulation in the inner layers, impacting motor performance and stator life.

[0004] If manual wiring is used, it will increase working hours and costs, thus affecting the factory's production capacity.

[0005] Therefore, for high-power motors, how to meet high-current wiring requirements while effectively simplifying the process, shortening manufacturing time, reducing thickness, and simultaneously eliminating heat accumulation inside the motor has become an important issue. Utility Model Content

[0006] According to some embodiments of the present disclosure, a wiring structure for a motor stator is provided, comprising: a wiring module, a plurality of wires of at least one phase, and a connecting assembly. The wiring module has a plurality of holes and a storage space. The holes are connected to the storage space, and the plurality of holes correspond to a plurality of endpoints of the motor stator. The plurality of wires of at least one phase are arranged in the storage space. The wires are composed of wires with a sheath or wires with an insulation layer. The plurality of wires of at least one phase are electrically connected to the plurality of endpoints of the motor stator via the plurality of holes. The connecting assembly connects the plurality of wires of at least one phase to an electrical device.

[0007] In some embodiments, the wiring module is formed by using a mold forming technology or a fixture glue potting technology to cover and fix multiple wires of at least one phase.

[0008] In some embodiments, the material of the wiring module includes an electrically insulating material.

[0009] In some embodiments, a plurality of conductors of at least one phase are fixed in the accommodating space of the wiring module in a manner of at least partially overlapping each other.

[0010] In some embodiments, the plurality of conductors of at least one phase includes a three-phase run.

[0011] In some embodiments, the connection component includes three connection components, corresponding to the three-phase routing described above.

[0012] In some embodiments, the sheathed wire is a sheathed single-core wire.

[0013] In some embodiments, the sheathed wire is a sheathed multi-core wire.

[0014] In some embodiments, a wire material including a sheath includes: an electrical conductor, an anti-interference layer, and an insulating sheath. The anti-interference layer covers the electrical conductor. The insulating sheath covers the anti-interference layer.

[0015] In some embodiments, the anti-interference layer includes an aluminum foil layer and a braided layer. The aluminum foil layer is located on a side close to the electrical conductor, and the braided layer is located on a side close to the insulating sheath. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Various aspects of the present disclosure are best understood from the following detailed description when read with the accompanying drawings. It should be noted that, in accordance with standard practice in the industry, various features are not necessarily drawn to scale. In fact, the dimensions of various features may be arbitrarily increased or decreased for clarity of illustration.

[0017] Figure 1 A three-dimensional schematic diagram of a combination of a wiring structure and a motor stator according to some embodiments of the present disclosure is shown.

[0018] Figure 2 A top view of a combination of a wiring structure and a motor stator is shown according to some embodiments of the present disclosure.

[0019] Figure 3 Some embodiments according to the present disclosure are shown. Figure 1 An enlarged view of the portion indicated by box A in FIG.

[0020] Figure 4 A three-dimensional schematic diagram of a wiring module, wires, and connection components according to some embodiments of the present disclosure is shown.

[0021] Figure 5 A three-dimensional schematic diagram of a wiring module, wires, and connection components according to some embodiments of the present disclosure is shown, wherein the wiring module is marked with a dotted line.

[0022] Figure 6A A schematic diagram of a wire is shown when the wire with a sheath is a single-core wire with a sheath according to some embodiments of the present disclosure.

[0023] Figure 6B A schematic diagram of a wire according to some embodiments of the present disclosure is shown, in which the wire containing a sheath is a multi-core wire containing a sheath.

[0024] Description of Reference Numerals

[0025] 100: knot structure,

[0026] 110: Wiring module,

[0027] 111: holes,

[0028] 115: Accommodation space,

[0029] 120: wire,

[0030] 121: Wire with wire skin,

[0031] 122: thread skin,

[0032] 123: Electrical conductors,

[0033] 124: Anti-interference layer,

[0034] 125: Aluminum foil layer,

[0035] 126: Braided layer,

[0036] 127: Insulation sheath,

[0037] 128: Single core wire,

[0038] 129: Multi-core wire,

[0039] 130: Connecting components,

[0040] 131: Connecting components,

[0041] 132: terminal,

[0042] 200: Motor stator,

[0043] 210: Coil winding,

[0044] 215: endpoint,

[0045] 250: Rotor setting,

[0046] A: Box,

[0047] F: filling material,

[0048] O: Axial direction. DETAILED DESCRIPTION

[0049] The following disclosure provides many different embodiments or examples, and describes specific examples of various components and arrangements to implement the various features of the present disclosure. For example, if this specification describes a first feature being formed "on" or "above" a second feature, this includes embodiments in which the first feature and the second feature are in direct contact, as well as embodiments in which an additional feature is formed between the first and second features, so that the first and second features are not in direct contact.

[0050] Relative spatial terms may be used in the embodiments, such as "below" and "above," to facilitate describing the relationship of components or features to other components or features in the drawings. These spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the drawings. The device can be rotated 90 degrees or at other orientations, and the spatial terms used herein should be interpreted accordingly.

[0051] First, please refer to Figure 1 and Figure 2 . Figure 1 A three-dimensional schematic diagram of a combination of a wiring structure 100 and a motor stator 200 according to some embodiments of the present disclosure is shown. Figure 2 FIG. 1 shows a top view of a combination of a wiring structure 100 and a motor stator 200 according to some embodiments of the present disclosure.

[0052] In the embodiment of the present disclosure, the wiring structure 100 and the motor stator 200 are applicable to high-power motors, for example, motors with a power greater than 2 kilowatts. In such motors, the current of the motor stator 200 is relatively high, thus requiring a special wiring structure.

[0053] like Figure 1 As shown, in an embodiment of the present disclosure, a wiring structure 100 is disposed above a motor stator 200. The wiring structure 100 mainly includes a wiring module 110, a plurality of wires 120, and a connecting assembly 130.

[0054] like Figure 1 and Figure 2 As shown, the wiring module 110 is formed as an annular element with a diameter that roughly corresponds to the outer diameter of the motor stator 200. The wiring module 110 has an opening in the center that roughly corresponds to the motor rotor location 250. In other words, the wiring module 110 and the motor stator 200 are coaxially arranged along the axial direction O.

[0055] The wiring module 110 has an internal storage space 115. The wires 120 are disposed within the storage space 115. In some embodiments, the wiring module 110 is formed using a mold forming technique or a jig-and-glue potting technique to encase and secure the wires 120. In some embodiments, the wiring module 110 is constructed from an electrically insulating material, such as a thermosetting plastic, thermoplastic, or other suitable insulating material. Forming the wiring module 110 using a mold forming technique or a jig-and-glue potting technique offers the advantages of simple manufacturing and reduced production time.

[0056] Please refer to Figures 1 to 3 . Figure 3 Some embodiments according to the present disclosure are shown. Figure 1 An enlarged view of the portion indicated by box A in FIG.

[0057] The motor stator 200 may include a plurality of coil windings 210. These coil windings 210 are arranged along the circumference of the motor stator 200 and surround the rotor arrangement 250 ( Figure 2 ).like Figure 3 As shown, each coil winding 210 may include one or more endpoints 215. Figure 3 In the illustrated embodiment, each coil winding 210 includes two terminals 215 , and each terminal 215 corresponds to a hole 111 of the wiring module 110 .

[0058] The wiring module 110 may include a plurality of holes 111. Because the holes 111 are positioned to correspond to the endpoints 215 of the coil windings 210 of the motor stator 200, the holes 111 are arranged along the circumference of the wiring module 110 and are located radially outward of the wiring module 110. The holes 111 communicate with the accommodating space 115. The wires 120 disposed in the accommodating space 115 are electrically connected to the endpoints 215 via the holes 111. The number of endpoints 215 and holes 111 is not limited to the embodiment shown in this disclosure and may be determined based on actual needs.

[0059] In addition, if Figure 3 As shown, compared to the prior art in which each stator coil winding must retain a longer wire for wiring, the hole 111 of the wiring module 110 according to the present disclosure can be set at a position closer to the end point 215 of the coil winding 210, so that the coil winding 210 only requires a shorter length of wire to be connected to the conductor 120 in the wiring module 110, further simplifying the process.

[0060] In some embodiments, the conductive wire 120 is formed from a wire material 121 with a wire sheath. In this specification, "wire sheath" refers to an insulating layer covering the outer surface of a conductive wire, which prevents the conductive wires 120 from contacting each other and causing a short circuit. In other words, the conductive wire 120 can be formed from a wire material with an insulating layer.

[0061] In some embodiments, in order to match the power supply scheme of the motor, the plurality of wires 120 can be configured to have at least one phase. Based on the default phase, the wiring pattern of the wires 120 in the accommodation space 115 can be pre-arranged. The wired wires 120 can be connected to an external power device (not shown) via the connecting component 130. Figure 1 As shown, the connection assembly 130 may be disposed above the wiring module 110 , ie, on the opposite side of the motor stator 200 , so as to connect the wires 120 connected to the motor stator 200 with other devices.

[0062] For example, in an embodiment of the present disclosure, the conductor 120 of at least one phase includes three-phase wiring, corresponding to three-phase input power. Figure 1 and Figure 2 As shown, the connection assembly 130 includes three connection assemblies 131, corresponding to the three-phase routing described above. In the embodiment of the present disclosure, the connection assemblies 131 extend along the axial direction O, but their extension direction is not limited to this. Furthermore, the placement of the connection assemblies 131 is not limited to the embodiment shown in the present disclosure and can be determined based on actual needs.

[0063] Please refer to Figure 4 and Figure 5 . Figure 4 1 is a perspective schematic diagram of a wiring module 110 , a wire 120 , and a connection assembly 130 according to some embodiments of the present disclosure. Figure 5 1 is a perspective schematic diagram of a wiring module 110 , a wire 120 , and a connection assembly 130 according to some embodiments of the present disclosure, wherein the wiring module 110 is indicated by a dotted line.

[0064] As described above, the conductive wire 120 composed of the wire material 121 with a wire sheath is disposed in the accommodating space 115. In some embodiments, Figure 5 As shown, multiple conductors 120 of at least one phase are fixed in the accommodating space 115 of the wiring module 110 in a manner that at least partially overlaps each other. The overlapping conductors 120 have the advantage of reducing the thickness of the wiring module 110. Compared with the prior art method of using printed circuit boards for wiring, the wiring structure 100 according to the present disclosure has the advantages of small thickness, low cost, and low heat accumulation, and can also maintain the performance of the motor and the service life of the motor stator. In addition, the conductors 120 according to the present disclosure are composed of wires 121 with wire sheaths or wires with an insulation layer, ensuring that the stacking of wires in the accommodating space 115 does not cause short circuit problems.

[0065] In addition, if Figure 4 and Figure 5 As shown, each connection component 131 of the connection component 130 may have a terminal 132 at its distal end (relative to the proximal end of the connection wiring module 110). The terminal 132 is used to electrically connect to other electrical devices. However, the form of the terminal 132 is not limited, and the user can select an appropriate terminal according to their needs.

[0066] Please refer to Figure 6A . Figure 6A FIG. 1 is a schematic diagram of a wire when the wire 121 with a sheath is a single-core wire 128 with a sheath according to some embodiments of the present disclosure.

[0067] like Figure 6AAs shown, a single-core wire 128 may include a sheath 122 (also known as an insulation layer) and an electrical conductor 123. In some embodiments, the material of the electrical conductor 123 may include copper. For example, the electrical conductor 123 may be a copper wire. The sheath 122 may be an electrically insulating material used to cover the electrical conductor 123.

[0068] Please refer to Figure 6B . Figure 6B Schematic diagram of a wire when the wire 121 with a sheath is a multi-core wire 129 with a sheath according to some embodiments of the present disclosure.

[0069] like Figure 6B As shown, the multi-core wire 129 may include a plurality of wire sheaths 122 and electrical conductors 123. In other words, the multi-core wire 129 may include a plurality of single core wires 128.

[0070] In some embodiments, the multi-core cable 129 may further include an anti-interference layer 124 and an insulating sheath 127 (also referred to as an insulation layer). The anti-interference layer 124 covers the conductors 123 and / or the sheath 122 and serves to prevent interference from other power sources in the signals transmitted through the sheathed wire 121. The insulating sheath 127, covering the outer surface of the anti-interference layer 124, serves to protect the internal structure and wires. The insulating sheath 127 may be made of polyvinyl chloride (PVC) or other suitable insulating materials.

[0071] exist Figure 6B In the illustrated embodiment, the anti-interference layer 124 includes an aluminum foil layer 125 and a braided layer 126. The aluminum foil layer 125 is located near the conductor 123, while the braided layer 126 is located near the insulating sheath 127. In other words, the aluminum foil layer 125 covers the innermost conductor 123 and the cable sheath 122, the braided layer 126 covers the aluminum foil layer 125, and the insulating sheath 127 further covers the braided layer 126. This effectively prevents signal interference. In some embodiments, the braided layer 126 may be made of copper.

[0072] In addition, if Figure 6B As shown, a plurality of filler materials F are provided between the plurality of electrical conductors 123 (and the sheath 122 covering the electrical conductors 123). The filler material F is used to increase the roundness of the cable of the multi-core wire 129 and is not limited to a specific size or a specific number.

[0073] According to the embodiment of the present disclosure, the user can select the following according to the actual needs (for example, current size, signal type, etc.): Figure 6A The single core wire 128 shown or Figure 6B The multi-core wire 129 is shown as the wire material 121 including a wire sheath.

[0074] Furthermore, since the wiring module 110 can be formed using mold forming technology or fixture glue potting technology, the structure of the wiring module 110 is not limited by the type of wires, so that the wiring structure 100 according to the present disclosure has greater design flexibility and compatibility.

[0075] In summary, embodiments of the present disclosure provide a pre-formed wiring structure 100 suitable for use in a high-current motor stator 200. Depending on user needs, the housing 115 within the wiring structure 100 can be configured to house and secure a plurality of wires 120, each consisting of single-core wires 128 or multi-core wires 129, for at least one phase. These wires 120 are electrically connected to the terminals 215 of the coil windings 210 of the motor stator 200 via holes 111 pre-designed near the coil windings 210. This allows power for at least one phase to be input into the motor stator 200 via the corresponding wires 120. This wiring structure 100 effectively simplifies the process, shortens manufacturing time, reduces thickness, and simultaneously addresses the issue of heat accumulation within the motor.

[0076] Although the embodiments of the present disclosure and their advantages have been disclosed as above, it should be understood that any person skilled in the art can make changes, substitutions and modifications without departing from the spirit and scope of the present disclosure. In addition, the scope of protection of the present disclosure is not limited to the processes, machines, manufactures, material compositions, devices, methods and steps in the specific embodiments described in the specification. Anyone with ordinary knowledge in the relevant technical field can understand from the disclosure of this disclosure that the processes, machines, manufactures, material compositions, devices, methods and steps currently or in the future can be developed. As long as they can implement substantially the same functions or obtain substantially the same results in the embodiments described herein, they can be used according to the present disclosure. Therefore, the scope of protection of the present disclosure includes the above-mentioned processes, machines, manufactures, material compositions, devices, methods and steps. In addition, each patent application constitutes an individual embodiment, and the scope of protection of the present disclosure also includes the combination of each patent application and embodiment.

Claims

1. A wiring structure of a motor stator, wherein: include: a wiring module having a plurality of holes and a receiving space, wherein the plurality of holes are connected to the receiving space and the plurality of holes correspond to the plurality of end points of the motor stator; A plurality of wires of at least one phase are disposed in the accommodating space, wherein the plurality of wires are formed of wires with a sheath or wires with an insulation layer, and the plurality of wires of at least one phase are electrically connected to the plurality of end points of the motor stator via the plurality of holes; and A connecting assembly connects the plurality of conductors of the at least one phase to an electric device.

2. The wiring structure of the motor stator according to claim 1, wherein: The wiring module is formed by using a mold forming technology or a fixture glue pouring technology to cover and fix the multiple wires of at least one phase.

3. The wiring structure of the motor stator according to claim 2, wherein: The material of the wiring module includes electrical insulation material.

4. The wiring structure of the motor stator according to claim 1, wherein: The plurality of conducting wires of at least one phase are fixed in the accommodating space of the wiring module in a manner of at least partially overlapping each other.

5. The wiring structure of the motor stator according to claim 1, wherein: The plurality of conductors of at least one phase include three-phase wiring.

6. The wiring structure of the motor stator according to claim 5, wherein: The connection component includes three connection components corresponding to the three-phase wiring.

7. The wiring structure of the motor stator according to claim 1, wherein: The wire material containing a wire sheath is a single-core wire containing a wire sheath.

8. The wiring structure of the motor stator according to claim 1, wherein: The wire material containing a wire sheath is a multi-core wire containing a wire sheath.

9. The wiring structure of the motor stator according to claim 1, wherein: The wire with wire sheath includes: one or more electrical conductors; an anti-tampering layer covering the one or more electrical conductors; and An insulating outer shell covers the anti-interference layer.

10. The wiring structure of the motor stator according to claim 9, wherein: The anti-interference layer includes: an aluminum foil layer located on a side close to the electrical conductor; and A braided layer is located on a side close to the insulating sheath.

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