Coil assembly and motor

Abstract

The utility model provides a coil assembly and a motor, and relates to the technical field of motors. The coil assembly comprises a coil holder, a contact pin, a wire, a wire blocking column and an external wire. The coil holder is provided with an outer ring and a plurality of frameworks arranged in the outer ring, the frameworks extend from the outer ring to the center in the radial direction, and the frameworks are arranged at intervals in the circumferential direction. A contact pin is arranged on the outer ring; and the wire is wound on the plurality of frameworks. The wire inlet end of the wire is wound on one contact pin, and the wire outlet end of the wire is wound on the other contact pin. The wire blocking columns extend from the outer ring in the radial direction in the direction away from the center. And a wire bypasses the wire blocking column and is attached to the outer ring when being wired between the framework and the contact pin. And the external wire is connected with the pin. By arranging the contact pins, electric connection of external wires and wires is facilitated, the structure is reliable, wire ends do not need to be trimmed for many times, and the winding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor winding, and in particular, to a coil assembly and a motor. Background Art

[0002] When the coil assembly of the existing motor winds the wire, an additional wire column tooling is required, and the wire ends need to be trimmed multiple times during the winding process to connect with the external wire. Trimming the wire ends is cumbersome and causes material waste. In addition, when the wire is connected to the external wire, welding is used. During the welding process, the wire is in a suspended state without support, and it is easy to touch and break during welding. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a coil assembly and a motor, which can improve the winding efficiency, reduce material waste, facilitate the connection between the external wire and the wire, and have a reliable structure.

[0004] The embodiments of the utility model are implemented as follows:

[0005] In a first aspect, the utility model provides a coil assembly, including:

[0006] A wire frame, the wire frame having an outer ring and a plurality of skeletons provided inside the outer ring, the skeletons extending from the outer ring in a radial direction towards the center, and the plurality of skeletons being spaced apart in a circumferential direction;

[0007] A pin, the pin being provided on the outer ring;

[0008] A wire, the wire being wound around the plurality of skeletons; the inlet end of the wire is wound around one of the pins, and the outlet end of the wire is wound around another one of the pins;

[0009] A wire stop post, the wire stop post being provided on the outer ring, the wire stop post extending from the outer ring in a radial direction away from the center; when the wire is routed between the skeleton and the pin, the wire bypasses the wire stop post and fits against the outer ring;

[0010] An external wire, the external wire being connected to the pin.

[0011] In an optional embodiment, the outer ring is provided with a mounting portion, and the pin is provided on the mounting portion; the mounting portion is adjacent to the wire stop post;

[0012] The mounting portion is circumferentially adjacent to the wire stop post; and / or, the wire stop post is radially located on a side of the mounting portion away from the center of the outer ring; and / or, the wire stop post is axially located on a side of the mounting portion away from the pin.

[0013] In an alternative embodiment, a transition portion is provided at the connection between the mounting portion and the pin. The cross-section of the transition portion is circular, and the transition portion and the pin are coaxial.

[0014] In an alternative embodiment, the transition portion includes a first end portion and a second end portion which are oppositely arranged. The first end portion is connected to the pin, and the second end portion is connected to the mounting portion.

[0015] In the direction from the first end portion to the second end portion, the circular cross-section of the transition portion gradually increases.

[0016] In an alternative embodiment, the pin includes a first pin, a second pin, and a third pin which are arranged at intervals in the circumferential direction. The second pin is located between the first pin and the third pin.

[0017] The mounting portion includes a first mounting portion, a second mounting portion, and a third mounting portion. The first pin is arranged on the first mounting portion, the second pin is arranged on the second mounting portion, and the third pin is arranged on the third mounting portion.

[0018] One of the stop wire columns is connected to each of the first mounting portion and the third mounting portion; two of the stop wire columns are connected to the second mounting portion, and the two stop wire columns are respectively located on both sides of the second pin.

[0019] In an alternative embodiment, the external wire is connected to one end of the pin away from the outer ring, and the wire on the pin is located between the external wire and the mounting portion.

[0020] In an alternative embodiment, the external wire and the wire are combined and wound around the pin.

[0021] In an alternative embodiment, the skeleton includes a first group of skeletons and a second group of skeletons.

[0022] The inlet end of the wire is fixed on the first pin, sequentially bypasses the stop wire column below the first pin and enters the first group of skeletons for winding; the end of the first group of skeletons bypasses the stop wire column on one side below the second pin and then winds around the second pin, and enters the second group of skeletons for winding after passing the stop wire column on the other side below the second pin; the end of the second group of skeletons bypasses the stop wire column below the third pin and then winds around the third pin.

[0023] In an alternative embodiment, an arc portion is provided on the outer peripheral surface of the outer ring, and the arc portion is arranged corresponding to the mounting portion.

[0024] In a second aspect, the present invention provides a motor, including the coil assembly according to any one of the foregoing embodiments.

[0025] The beneficial effects of the embodiments of the present utility model include:

[0026] For the coil assembly provided by the present utility model, a plurality of wound skeletons are located inside the wire holder. After setting the insertion pins, continuous winding can be realized without trimming the wire ends. The winding efficiency is improved, and the waste of materials is reduced. Moreover, no additional wire post tooling is required during the winding process, making the operation more convenient. The wire blocking post is provided to prevent the wire from being in a suspended state, providing better support for the wire. In addition, the electrical connection between the external wire and the wire is achieved through the connection between the external wire and the insertion pin, with reliable connection, effectively avoiding the risk of the wire being easily broken in a suspended state when connected to the external wire in the prior art.

[0027] The motor provided by the present utility model includes the above-mentioned coil assembly. It has high winding efficiency, reduces the use of winding tooling, is convenient to operate, has reliable connection, reduces material waste, and saves costs. Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0029] Figure 1 It is a schematic structural diagram of the application scenario of the coil assembly provided by the embodiment of the present utility model;

[0030] Figure 2 It is a schematic structural diagram of the wire holder of the coil assembly provided by the embodiment of the present utility model;

[0031] Figure 3 It is a partially enlarged schematic structural diagram of the insertion pin and the wire blocking post of the coil assembly provided by the embodiment of the present utility model;

[0032] Figure 4 It is a schematic diagram of the winding principle at the second insertion pin provided by the embodiment of the present utility model.

[0033] Reference numerals: 100 - coil assembly; 110 - wire holder; 111 - outer ring; 113 - skeleton; 115 - arc portion; 120 - insertion pin; 130 - wire blocking post; 131 - installation portion; 135 - transition portion; 121 - first insertion pin; 122 - second insertion pin; 123 - third insertion pin; 150 - external wire; 160 - wire; 200 - motor shaft. Detailed Embodiments

[0034] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. The components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0037] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed when in use. It is only for the convenience of describing the present utility model 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 should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0038] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0039] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected to" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0040] Please refer toFigures 1 to 4 , this embodiment provides a coil assembly 100, which can be applied to a motor. The coil assembly 100 can improve the winding efficiency without using an additional wire post tooling.

[0041] The coil assembly 100 includes a bobbin 110, pins 120, a wire 160, a wire stop post 130, and an external wire 150. The bobbin 110 has an outer ring 111 and a plurality of skeletons 113 disposed inside the outer ring 111. The skeletons 113 extend from the outer ring 111 in a radial direction toward the center, and the plurality of skeletons 113 are spaced apart in the circumferential direction. Pins 120 are provided on the outer ring 111. The wire 160 is wound around the plurality of skeletons 113. The inlet end of the wire 160 is wound around one of the pins 120, and the outlet end of the wire 160 is wound around another pin 120. A wire stop post 130 is provided on the outer ring 111, and the wire stop post 130 extends from the outer ring 111 in a radial direction away from the center. The pins 120 and the wire stop post 130 are disposed adjacent to each other. When the wire 160 is routed between the skeleton 113 and the pin 120, it bypasses the wire stop post 130 and adheres to the outer ring 111, thereby preventing the wire 160 from being in a suspended state. The external wire 150 is connected to the pin 120. After the pins 120 are provided, continuous winding can be achieved without trimming the wire ends. The winding efficiency is improved, and the waste of materials is reduced. Moreover, no additional wire post tooling is required during the winding process, and the operation is more convenient. In addition, the electrical connection between the external wire 150 and the wire 160 is achieved by connecting the external wire 150 and the pin 120, and the connection is reliable, effectively avoiding the risk that the wire 160 is easily broken when connected to the external wire 150 in the prior art.

[0042] It should be noted that there are two cases of the routing of the wire 160 between the skeleton 113 and the pin 120, namely, winding from the pin 120 into the skeleton 113 winding and winding from the skeleton 113 into the pin 120 winding.

[0043] Optionally, an installation portion 131 is provided on the outer ring 111, and the pins 120 are fixedly provided on the installation portion 131. The installation portion 131 and the wire stop post 130 are disposed adjacent to each other. The installation portion 131 and the outer ring 111 can be integrally formed. The wire stop post 130 is used to limit and support the wire 160, which can make the wire 160 route along and closely adhere to the surface of the bobbin 110, prevent the wire 160 from being in a suspended state, and reduce the risk of the wire 160 breaking.

[0044] It can be understood that the adjacent setting of the installation portion 131 and the wire stop post 130 can be understood as: the installation portion 131 is provided on the wire stop post 130, that is, the projections of the installation portion 131 and the wire stop post 130 on the upper surface of the outer ring 111 have an overlapping part. Or, the installation portion 131 and the wire stop post 130 are separated by a preset distance that is relatively close, for example, the distance between the installation portion 131 and the wire stop post 130 is less than 15 mm.

[0045] It should be noted that the installation part 131 and the wire blocking post 130 can be adjacent in the circumferential direction. It is also possible that the wire blocking post 130 is located radially on the side of the installation part 131 away from the center of the outer ring 111. Of course, it can also be adjacent in the axial direction of the outer ring 111. For example, the wire blocking post 130 is axially located on the side of the installation part 131 away from the pin 120, that is, the wire blocking post 130 is located below the pin 120. This can make the wire 160 better fit the surface of the outer ring 111 before or after winding around the pin 120, preventing the wire 160 from hanging in the air.

[0046] Optionally, the installation part 131 is provided with an installation hole, and the pin 120 is inserted into the installation hole. Of course, the connection method between the installation part 131 and the pin 120 can also be welding, clamping or threaded connection, etc., which is not specifically limited here. It can be understood that since the skeleton 113 is provided inside the wire holder 110. During the winding process, the wire 160 is wound around the skeleton 113 and then wound around the pin 120, and then enters the internal skeleton 113 from the pin 120 for winding. In the case where the wire 160 goes from the internal skeleton 113 to the pin 120 or enters the internal skeleton 113 from the pin 120, it will bypass the wire blocking post 130, making the wire 160 fit the surface of the wire holder 110 better, playing a supporting role for the wire 160, and preventing the wire 160 from being easily touched and broken due to hanging in the air.

[0047] Optionally, a transition part 135 is provided at the connection between the installation part 131 and the pin 120. The cross-section of the transition part 135 is circular, and the transition part 135 and the pin 120 are coaxial. By setting the transition part 135 with a circular arc cross-section, when the wire 160 enters the pin 120 from the wire blocking post 130 or enters the wire blocking post 130 from the pin 120, it can better adhere to the surface of the wire holder 110.

[0048] In this embodiment, the transition part 135 includes a first end part and a second end part which are oppositely arranged. The first end part is connected to the pin 120, and the second end part is connected to the installation part 131. Along the direction from the first end part to the second end part, the circular cross-section of the transition part 135 gradually increases. The gradually changing circular arc cross-section has better support for the wire 160, the contact area between the wire holder 110 and the wire 160 is larger, the fitting degree is better, and the routing of the wire 160 on the surface of the wire holder 110 is more stable.

[0049] Optionally, the transition part 135 can be separately connected to the pin 120 and the mounting part 131, such as by adhesion, welding, threaded connection, snap connection, etc. Of course, the transition part 135 and the mounting part 131 can also be integrally formed, that is, the transition part 135 is part of the mounting part 131, and the transition part 135 and the mounting part 131 are regarded as a whole, which is not specifically limited here. The mounting part 131, the wire blocking post 130 and the outer ring 111 can be integrally formed or separately connected, which is not specifically limited here.

[0050] Optionally, the pin 120 includes a first pin 121, a second pin 122 and a third pin 123 that are arranged at intervals in the circumferential direction. The second pin 122 is located between the first pin 121 and the third pin 123. There are three wire blocking posts 130. The three wire blocking posts 130 and the three pins 120 are arranged in one-to-one correspondence. The mounting part 131 includes a first mounting part 131, a second mounting part 131 and a third mounting part 131. The first pin 121 is arranged on the first mounting part 131, the second pin 122 is arranged on the second mounting part 131, and the third pin 123 is arranged on the third mounting part 131.

[0051] One wire blocking post 130 is respectively connected to the first mounting part 131 and the third mounting part 131. Two wire blocking posts 130 are connected to the second mounting part 131, and the two wire blocking posts 130 are respectively located on both sides of the second pin 122.

[0052] Optionally, the multiple skeletons 113 inside the outer ring 111 include a first group of skeletons 113 and a second group of skeletons 113. Among them, the first group of skeletons 113 and the second group of skeletons 113 respectively include multiple skeletons 113.

[0053] When winding the wire, the incoming end of the wire 160 is first fixed on the first pin 121 and wound several times for fixation. Then it bypasses the wire blocking post 130 below the first pin 121, returns to the upper surface of the outer ring 111 from below the wire blocking post 130, and then enters the first group of skeletons 113 for winding. The multiple skeletons 113 in the first group of skeletons 113 are successively wound with the wire 160. The wire 160 is successively wound around each of the skeletons 113 in the first group of skeletons 113 until the winding of the last skeleton 113 in the first group of skeletons 113 is completed.

[0054] Combined Figure 4, taking the second pin 122 as an example. The wire 160 enters below the wire blocking post 130 on one side below the second pin 122 from the upper surface of the outer ring 111 at the end of the first group of skeletons 113, and then returns to the upper surface of the outer ring 111 and winds around the second pin 122. After winding around the second pin 122 for several turns and fixing, it then passes downward below the wire blocking post 130 on the other side below the second pin 122, and then returns to the upper surface of the outer ring 111 and enters the second group of skeletons 113 inside the outer ring 111 for winding. The wire 160 winds around each of the skeletons 113 in the second group of skeletons 113 in sequence until the winding of the last skeleton 113 in the second group of skeletons 113 is completed.

[0055] At the end of the second group of skeletons 113, the wire 160 enters below the wire blocking post 130 below the third pin 123 from the upper surface of the outer ring 111, then bypasses the wire blocking post 130 and returns to the upper surface of the outer ring 111, and then winds around the third pin 123. After winding around the third pin 123 for several turns and fixing, the winding of the coil is completed.

[0056] Optionally, the pin 120 is in a straight bar shape. After the winding is completed, the external wire 150 is connected to the end of the pin 120 far from the outer ring 111, and the wire 160 on the pin 120 is located between the external wire 150 and the mounting portion 131. The pin 120 and the external wire 150 can be electrically connected by welding. It can be understood that by welding the pin 120 and the external wire 150, compared with connecting the pin 120 to the suspended wire 160, the welding is more convenient, the welding is more reliable, the electrical connection is more stable, which is beneficial to reducing the difficulty of the welding process and the risk of the wire 160 breaking. Optionally, the external wire 150 is connected to the upper middle part of the pin 120.

[0057] In this embodiment, there are three external wires 150, which are respectively welded to the first pin 121, the second pin 122, and the third pin 123 in one-to-one correspondence. Optionally, during the process of the wire 160 winding to the pin 120, the external wire 150 can be first merged with the wire 160 and then wound around the pin 120 together, and finally the external wire 150 and the pin 120 are welded, which can improve the reliability of the connection and the electrical connection is more stable. Optionally, the external wire 150 can be first merged with the wire 160 at the bottom of the pin 120 (the end close to the mounting portion 131), and then wound upward to the upper middle part of the pin 120, and the external wire 150 is led out from the upper middle part or the top of the pin 120.

[0058] Optionally, an arc portion 115 is provided on the outer peripheral surface of the outer ring 111, and the arc portion 115 is correspondingly arranged with the mounting portion 131. Optionally, the arc portion 115 is correspondingly arranged with the transition portion 135. In this way, in the cases where the wire 160 runs from the upper surface of the outer ring 111 to below the wire blocking post 130 and from below the wire blocking post 130 to the upper surface of the outer ring 111, the wire 160 can be effectively supported. The wire 160 fits better with the surface of the wire holder 110, and the wire 160 adopts an arc transition during the routing turning process, avoiding scratches caused by sharp edges and reducing the risk of wire 160 breakage.

[0059] In this embodiment, the wire holder 110 and the wire blocking post 130 are made of insulating materials, and the pin 120 is made of a conductive material.

[0060] The coil assembly 100 in this embodiment can be completed by continuously winding a single wire 160 without trimming the wire ends midway, reducing the process steps of trimming the wire ends, reducing material waste, and saving costs. And there is no need to use an additional wire post tooling, the winding is more convenient, and the winding efficiency is higher. In addition, due to the provision of the pin 120 and the wire blocking post 130, the support for the wire 160 is better. The wire 160 fits better with the surface of the wire holder 110, avoiding the wire 160 being in a suspended state and reducing the risk of wire 160 breakage. The external connection wire 150 is connected to the pin 120 to achieve the electrical connection between the external connection wire 150 and the wire 160, and the welding operation is more convenient and the connection is more reliable.

[0061] The embodiment of the present utility model further provides a motor, including a rotor, a stator, a motor shaft 200, and the coil assembly 100 according to any one of the foregoing embodiments. The motor has a high winding efficiency, the external connection wire 150 and the wire 160 in the coil are conveniently and reliably connected, which is beneficial to the stable and reliable operation of the motor, reduces the risk of wire 160 breakage, and extends the service life of the motor.

[0062] It should be noted that the assembly of the stator, rotor, and coil assembly 100 of the motor belongs to the prior art and will not be elaborated in detail here.

[0063] In summary, the coil assembly 100 and the motor provided by the embodiment of the present utility model have the following beneficial effects:

[0064] The coil assembly 100 provided by the embodiment of the present utility model has a plurality of wound skeletons 113 located inside the bobbin 110. After the insertion pins 120 are provided, continuous winding can be achieved without trimming the wire ends. The winding efficiency is improved, and the waste of materials is reduced. Moreover, no additional wire post tooling is required during the winding process, making the operation more convenient. In addition, the electrical connection between the external wire 150 and the wire 160 is realized by connecting the external wire 150 and the insertion pins 120, and the connection is reliable, effectively avoiding the risk that the wire 160 is easily broken when connected to the external wire 150 in the prior art. By providing the wire blocking posts 130, the degree of fit between the wire 160 and the surface of the bobbin 110 is better, the support for the wire 160 is better, the risk of wire 160 breakage is reduced, and the reliability of the coil assembly 100 is improved.

[0065] The motor provided by the embodiment of the present utility model includes the above-mentioned coil assembly 100. It has high winding efficiency, reduces the use of winding tooling, is convenient to operate, has reliable connection, reduces material waste, and saves costs. It is beneficial to improve the reliability of the motor operation and extend the service life of the motor.

[0066] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A coil assembly, characterized in that, Including: A wire holder (110), the wire holder (110) having an outer ring (111) and a plurality of skeletons (113) disposed within the outer ring (111), the skeletons (113) extending radially inward from the outer ring (111) towards the center, and the plurality of skeletons (113) being spaced apart circumferentially; Pin needles (120), the outer ring (111) being provided with pin needles (120); A wire (160), the wire (160) being wound around the plurality of skeletons (113); the inlet end of the wire (160) is wound around one of the pin needles (120), and the outlet end of the wire (160) is wound around another pin needle (120); Wire blocking posts (130), the outer ring (111) being provided with the wire blocking posts (130), the wire blocking posts (130) extending radially outward from the outer ring (111) in a direction away from the center; when the wire (160) is routed between the skeletons (113) and the pin needles (120), it bypasses the wire blocking posts (130) and adheres to the outer ring (111); External connection wires (150), the external connection wires (150) being connected to the pin needles (120).

2. The coil assembly according to claim 1, wherein The outer ring (111) is provided with a mounting portion (131), and the pin needles (120) are disposed on the mounting portion (131); the mounting portion (131) is disposed adjacent to the wire blocking posts (130).

3. The coil assembly according to claim 2, wherein, The mounting portion (131) is circumferentially adjacent to the wire blocking posts (130); and / or, the wire blocking posts (130) are radially located on a side of the mounting portion (131) away from the center of the outer ring (111); and / or, the wire blocking posts (130) are axially located on a side of the mounting portion (131) away from the pin needles (120).

4. The coil assembly according to claim 2, wherein A transition portion (135) is provided at the connection between the mounting portion (131) and the pin needles (120), the cross-section of the transition portion (135) is circular, and the transition portion (135) and the pin needles (120) are coaxial.

5. The coil assembly according to claim 4, wherein The transition portion (135) includes a first end portion and a second end portion disposed opposite to each other, the first end portion is connected to the pin needles (120), and the second end portion is connected to the mounting portion (131); Along the direction from the first end portion to the second end portion, the circular cross-section of the transition portion (135) gradually increases.

6. The coil assembly according to claim 2, wherein, The pin needles (120) include first pin needles (121), second pin needles (122), and third pin needles (123) spaced apart circumferentially, and the second pin needles (122) are located between the first pin needles (121) and the third pin needles (123); The mounting portion (131) includes a first mounting portion (131), a second mounting portion (131), and a third mounting portion (131), the first pin needles (121) are disposed on the first mounting portion (131), the second pin needles (122) are disposed on the second mounting portion (131), and the third pin needles (123) are disposed on the third mounting portion (131); One of the wire blocking posts (130) is connected to each of the first mounting portion (131) and the third mounting portion (131); two of the wire blocking posts (130) are connected to the second mounting portion (131), and the two wire blocking posts (130) are respectively located on both sides of the second pin (122).

7. The coil assembly according to claim 2, wherein, The external connection wire (150) is connected to the end of the pin (120) away from the outer ring (111), and the wire (160) on the pin (120) is located between the external connection wire (150) and the mounting portion (131).

8. The coil assembly according to claim 1, wherein, The external connection wire (150) and the wire (160) are combined and wound around the pin (120).

9. The coil assembly according to claim 6, wherein The skeleton (113) includes a first group of skeletons (113) and a second group of skeletons (113); The inlet end of the wire (160) is fixed to the first pin (121), and then passes around the wire blocking post (130) below the first pin (121) and enters the first group of skeletons (113) for winding; the end of the first group of skeletons (113) passes around the wire blocking post (130) on one side below the second pin (122) and then winds around the second pin (122), and then enters the second group of skeletons (113) for winding along the wire blocking post (130) on the other side below the second pin (122); the end of the second group of skeletons (113) passes around the wire blocking post (130) below the third pin (123) and then winds around the third pin (123).

10. The coil assembly according to claim 2, wherein, An arc portion (115) is provided on the outer peripheral surface of the outer ring (111), and the arc portion (115) is arranged corresponding to the mounting portion (131).

11. A motor, characterized in that, Comprising a coil assembly according to any one of claims 1 to 10.

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