Forward and reverse direct winding reel, motor, camera and electronic equipment

Abstract

The invention relates to a forward and reverse direct winding reel, a motor, a camera and electronic equipment, the forward and reverse direct winding reel comprises a reel body, a plurality of winding grooves arranged on the reel body and a reversing column arranged on the reel body, coils are wound in the winding grooves, the plurality of winding grooves are distributed at intervals, and the reversing column is arranged on the reel body. A gap exists between every two adjacent winding grooves, the reversing columns are arranged in the gaps, and the current directions of coils wound in every two adjacent winding grooves are opposite to each other after the coils pass through the reversing columns. The coil holder body is provided with the multiple winding grooves distributed at intervals, the reversing columns are ingeniously arranged between every two adjacent grooves, the winding direction is changed, the directions of currents of coils wound in the adjacent winding grooves are opposite, the magnets are reasonably assembled, the directions of Ampere forces generated by all the winding grooves are consistent after the coils are powered on, and therefore the winding effect is improved. Therefore, bidirectional current driving is realized.

Description

Technical Field

[0001] The present invention relates to the field of motors, and in particular to a forward and reverse straight-winding bobbin, a motor, a camera and an electronic device. Background Art

[0002] In precision electronic products such as mobile phone camera modules, voice coil motors (VCMs) are an important component of driving focus. Their winding process directly determines the performance and cost of the motor. Currently, the VCM winding methods on the market are mainly divided into two types: side winding and straight winding. Although both have their own advantages, they also face their own limitations and challenges.

[0003] The side winding process is usually used in VCM motors. Although it can meet the miniaturization requirements of products in certain specific cases, its disadvantages are also obvious. First, since the coil needs to be wound on the side, the process is relatively cumbersome, which affects production efficiency and increases the production and material costs of each unit product.

[0004] In contrast, direct winding is more intuitive and simple in operation. However, its biggest shortcoming is that it can only form a single current direction, which means that in complex application scenarios that require bidirectional current drive, such as realizing functions such as fast lens focus or reverse movement, traditional direct winding is stretched. The limitations of this winding method restrict the functional expansion of VCM motors and cannot meet the diverse requirements of motor performance for products such as high-end smartphones. Summary of the invention

[0005] In view of this, the present invention provides a forward and reverse straight-winding bobbin, a motor, a camera and an electronic device, wherein the bobbin body is equipped with a plurality of winding slots distributed at intervals, and a reversing column is cleverly arranged between two adjacent slots to change the winding direction, so that the current directions of the coils wound in adjacent winding slots are opposite to each other, and by reasonably assembling magnets, the directions of the Ampere forces generated in all winding slots are consistent after the coils are energized, thereby realizing bidirectional current drive.

[0006] The purpose of the present invention is achieved through the following technical solutions: A forward and reverse straight-winding bobbin comprises a bobbin body, a winding groove arranged on the bobbin body and a commutation column arranged on the bobbin body, a coil is wound in the winding groove, there are a plurality of winding grooves, the plurality of winding grooves are arranged at intervals, a gap exists between two adjacent winding grooves, the commutation column is arranged in the gap, and the current directions of the coils wound in two adjacent winding grooves are opposite to each other after passing through the commutation column.

[0007] The bobbin body is equipped with multiple winding slots distributed at intervals. By cleverly setting a reversing column between two adjacent slots, coils connected in series are wound in each winding slot. When the number of turns in a certain winding slot reaches the requirement, the wire can be wound in the reversing column to change the winding direction, that is, only a slight rotation of the fixture that clamps the bobbin body is required, and no complicated switching action is required to change from clockwise to counterclockwise, or vice versa. This greatly simplifies the operation process, greatly shortens the production time, improves the winding speed and continuity, and through the reasonable assembly of magnets, the direction of the Ampere force generated in all winding slots is consistent after the coil is energized, thereby realizing bidirectional current drive.

[0008] In order to meet more diverse coil construction needs, the winding frame supports the construction of double-layer or even multi-layer winding slots. When the ampere force requirements are not met, the number of winding slot layers can be increased to expand the capacity of the coil, thereby meeting the needs of designers and providing engineers with greater design freedom, which is suitable for a wider range of electronic devices and application scenarios.

[0009] Compared with the traditional side winding method, the forward and reverse direct winding process does not require a complicated reversing process and does not need to prevent the winding from exceeding the predetermined height. It significantly reduces the invalid working hours in the winding process, achieves a leap in the degree of automation, greatly reduces the manual intervention required for a single product, and significantly increases the output per unit time.

[0010] Preferably, the winding groove is excavated around the wire rack body.

[0011] The winding grooves are arranged in a ring shape along the side wall of the wire rack body, and the winding grooves are integrated with the wire rack body, which reduces the need for additional brackets or accessories and reduces material costs.

[0012] Preferably, the commutation column is provided with a receiving groove for receiving the coil.

[0013] The design of the receiving slot is to provide precise guidance and firm fixation for the coil. When the coil is wound around the commutation column, it can smoothly reverse into the next winding slot without twisting or loosening. By adding a receiving slot to the commutation column, the coil can be better managed during the winding process to prevent the coil from falling off the top of the commutation column due to external factors after the coil is wound around the commutation column and the turning is completed, thereby improving the stability of the product. The presence of the receiving slot gives the commutation column higher stability, allowing the same equipment to adapt to the winding needs of coils of different types and specifications, whether it is wires of different thicknesses or complex and changeable winding modes. This high adaptability allows companies to make adjustments more quickly and respond to diversified order challenges when faced with changes in market demand.

[0014] Preferably, two adjacent winding grooves are parallel to each other.

[0015] Adjacent winding slots are parallel to each other to avoid angle deviation, which may cause Ampere force generated by different winding slots after power is turned on. This will make the actual resultant force differ greatly from the expected force, ensuring the structural unity and stability of the coils, avoiding crossing and overlapping between coils, and laying the foundation for uniform distribution and compact winding of the coils.

[0016] Preferably, it further comprises a wire hanging post, wherein the wire hanging post is arranged on the wire rack body, and the starting wire end and the ending wire end of the coil are fixed to the wire hanging post.

[0017] The hanging pole provides a reliable fulcrum to ensure the stability of the coil during the winding process. Like an anchor, it firmly grasps the starting end of the coil. Even in high-speed winding or encountering external disturbances, it can still keep the position of the coil unshakable, avoiding the risk of the coil being scattered due to the slipping of the wire head, or the risk of the wire breaking due to excessive tension, which significantly improves the safety and reliability of coil winding. The addition of the hanging pole makes the winding operation easier and more convenient. Workers or automated equipment only need to hang one end of the coil on the pole to start winding in an orderly manner, eliminating the frequent manual fixing and adjustment time, greatly facilitating the installation and removal of the coil, and reducing the frequency of manual intervention. For automated production lines, this feature is particularly prominent, which can achieve seamless docking and rapid switching, greatly speeding up the pace of production.

[0018] Preferably, one or more commutation posts are provided in the gap between two adjacent winding slots.

[0019] The commutation column is cleverly placed in the gap between the winding slots. After the wire is wound in a certain winding slot, it can be fixed with the commutation column, and can quickly change direction and smoothly transition to the next winding slot, forming a smooth and uninterrupted winding path. This design overcomes the problem of manual adjustment or machine stop in traditional winding to change the winding area, greatly simplifies the operation process and improves the winding efficiency. The precise setting of the commutation column can realize the steering of the coil, and can also ensure that the wire slot of the previous layer is firm, avoid the problem of scattered wires caused by unstable factors, and maintain the consistency of the overall shape and geometric dimensions of the coil. This is crucial for the production of high-quality coils, especially for high-end electronic components with strict precision requirements. The accuracy of the commutation column is indispensable. By rationally planning the position of the commutation column in a limited space, the winding frame achieves a compact and efficient layout, so that each winding slot can be fully utilized, reducing space waste and increasing the volumetric efficiency of the winding frame.

[0020] Preferably, the wire hanging pole is located at the bottom of the wire rack body, and the starting wire end of the coil in the winding groove close to the wire hanging pole is directly fixed to the wire hanging pole. After the wire groove is completely wound, it is wound and fixed on the reversing pole, and then pulled to the wire hanging pole for winding and fixing to complete the winding.

[0021] The hanging pole is the starting and ending point of the winding, located at the bottom of the wire rack, and can provide a stable base for the coil. After the winding of the wire slot is completed, it is first wound on the reversing pole and then fixed to the hanging pole. This process injects flexibility into the winding process. The function of the reversing pole is to change the direction. As a relay point, it balances the process of the coil transferring from one winding slot to another, ensuring the smooth and efficient movement of the coil, and also avoiding the physical damage that the coil may encounter during the winding process.

[0022] Another implementation of the present patent is a motor comprising a forward and reverse direct-winding bobbin as described above.

[0023] Another implementation of the present patent is a camera comprising the motor as described above.

[0024] Another implementation of the present patent is an electronic device comprising the camera as described above.

[0025] Compared with the prior art, the present invention has the following beneficial effects: The forward and reverse straight winding frame of the present invention is equipped with a plurality of winding slots distributed at intervals. By cleverly setting a reversing column between two adjacent slots, coils connected in series are wound in each winding slot. When the number of turns of the winding in a certain winding slot reaches the requirement, the winding direction can be changed by winding the wire in the reversing column, that is, only a slight rotation of the fixture clamping the wire frame body is required, and no complicated switching action is required to change from clockwise to counterclockwise, or vice versa, which greatly simplifies the operation process, greatly shortens the production time, improves the winding speed and continuity, and realizes bidirectional current drive.

[0026] In order to meet more diverse coil construction requirements, the winding frame supports the construction of double-layer or even multi-layer winding slots, which not only expands the capacity of the coil, but also provides engineers with greater design freedom and is suitable for a wider range of electronic devices and application scenarios.

[0027] Compared with the traditional side winding method, the forward and reverse direct winding process significantly reduces the invalid working hours in the winding process, achieves a leap in the degree of automation, greatly reduces the manual intervention required for a single product, and significantly increases the output per unit time. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1It is a structural diagram of a forward and reverse direct winding winding frame according to an embodiment of the present invention.

[0030] Figure 2 for Figure 1 Magnified view of area A.

[0031] Figure 3 It is a structural diagram of a side winding frame in the background technology.

[0032] Figure 4 It is a structural diagram of a direct-winding winding frame in the background technology.

[0033] Figure 5 FIG. 1 is a schematic diagram of the coordination between a magnet and a coil according to an embodiment of the present invention. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0036] It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of the embodiments of the present application, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the application product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0037] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0038] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0039] The present embodiment provides a forward and reverse straight-winding bobbin, comprising a bobbin body 10, a winding groove 20 disposed on the bobbin body 10, and a commutation column 30 disposed on the bobbin body 10, wherein a coil is wound in the winding groove 20, and there are two winding grooves 20, which are arranged at intervals, and there is a gap between two adjacent winding grooves 20, and the commutation column 30 is disposed in the gap, and the current directions of the coils wound in the two adjacent winding grooves 20 are opposite to each other after passing through the commutation column 30.

[0040] The bobbin body 10 is equipped with a plurality of winding slots 20 distributed at intervals. By cleverly setting a reversing column 30 between two adjacent slots, coils connected in series are wound in each winding slot 20. When the number of turns in a certain winding slot 20 reaches the requirement, the winding direction can be changed by winding the wire in the reversing column 30, that is, only a slight rotation of the fixture clamping the bobbin body 10 is required, and no complicated switching action is required to change from clockwise to counterclockwise, or vice versa, which greatly simplifies the operation process, greatly shortens the production time, and improves the winding speed and continuity. By reasonably assembling the magnets, the direction of the Ampere force generated in all winding slots 20 is consistent after the coil is energized, thereby realizing bidirectional current drive.

[0041] In order to meet more diverse coil construction requirements, the winding frame supports the construction of double-layer or even multi-layer winding slots 20. When the Ampere force requirement is not met, the number of winding slot layers can be increased to expand the capacity of the coil, thereby meeting the needs of designers and providing engineers with greater design freedom, which is suitable for a wider range of electronic devices and application scenarios.

[0042] Compared with the traditional side winding method, the forward and reverse direct winding process does not require a complicated reversing process and does not need to prevent the winding from exceeding the predetermined height. It significantly reduces the invalid working hours in the winding process, achieves a leap in the degree of automation, greatly reduces the manual intervention required for a single product, and significantly increases the output per unit time.

[0043] In this embodiment, the winding groove 20 is circumferentially excavated on the wire rack body 10 .

[0044] The winding grooves 20 are arranged in a ring shape along the side wall of the bobbin body 10 . The winding grooves 20 and the bobbin body 10 are integrated, which reduces the need for additional brackets or accessories and reduces material costs.

[0045] In this embodiment, the commutation column 30 is provided with a receiving groove 31 for receiving the coil.

[0046] The design of the receiving slot 31 is intended to provide precise guidance and firm fixation for the coil. When the coil is wound around the commutation column 30, it can smoothly reverse into the next winding slot 20 without twisting or loosening. By adding the receiving slot 31 to the commutation column 30, the coil can be better managed during the winding process on the commutation column 30, avoiding the coil from falling off the top of the commutation column 30 due to external factors after the coil is wound around the commutation column 30, thereby improving the stability of the product. The presence of the receiving slot 31 gives the commutation column 30 greater flexibility, allowing the same device to adapt to the winding needs of coils of different types and specifications, whether it is wires of different thicknesses or complex and changeable winding modes. This high adaptability allows companies to make adjustments more quickly and respond to diversified order challenges when faced with changes in market demand.

[0047] In this embodiment, two adjacent winding grooves 20 are parallel to each other.

[0048] Adjacent winding slots 20 are parallel to each other to avoid angle deviation, which may cause different winding slots to generate Ampere force after power is turned on. This will make the actual resultant force differ greatly from the expected force, ensuring the structural uniformity and stability of the coils, avoiding crossing and overlapping between coils, and laying the foundation for uniform distribution and tight winding of the coils.

[0049] In this embodiment, a wire hanging post 40 is further included. The wire hanging post 40 is disposed on the wire rack body 10 , and the starting wire end and the ending wire end of the coil are fixed to the wire hanging post 40 .

[0050] The wire hanging post 40 provides a reliable fulcrum to ensure the stability of the coil during the winding process. Like an anchor, it firmly grasps the starting end of the coil, and can keep the position of the coil unshakable even in high-speed winding or encountering external disturbances, avoiding the risk of the coil being scattered due to the slipping of the wire head, or the risk of the wire breaking due to excessive tension, which significantly improves the safety and reliability of the coil winding. The addition of the wire hanging post 40 makes the winding operation easier and more convenient. Workers or automated equipment only need to hang one end of the coil on the post to start winding in an orderly manner, eliminating frequent manual fixing and adjustment time, greatly facilitating the installation and removal of the coil, and reducing the frequency of manual intervention. For automated production lines, this feature is particularly prominent, enabling seamless docking and rapid switching, greatly speeding up the pace of production.

[0051] In this embodiment, two reversing posts 30 are disposed in the gap between two adjacent winding slots 20 .

[0052] The commutation column 30 is cleverly placed in the gap between the winding grooves 20. After the wire is wound in a certain winding groove 20, it can quickly change direction through contact with the commutation column 30 and smoothly transition to the next winding groove 20, forming a smooth and uninterrupted winding path. This design overcomes the problem that the winding area needs to be changed manually or the machine stops in traditional winding, greatly simplifies the operation process and improves the winding efficiency. The precise setting of the commutation column 30 ensures that the coil can be turned, and also ensures that the wire groove of the previous layer is firm, avoiding the problem of scattered wires caused by unstable factors, and maintaining the consistency of the overall shape and geometric dimensions of the coil. This is crucial for the production of high-quality coils, especially for high-end electronic components with strict precision requirements, the accuracy of the commutation column 30 is indispensable. By rationally planning the position of the commutation column 30 in a limited space, the winding frame achieves a compact and efficient layout, so that each winding groove 20 can be fully utilized, reducing space waste and increasing the volumetric efficiency of the winding frame.

[0053] In this embodiment, the wire hanging post 40 is located at the bottom of the wire rack body 10, and the starting wire end of the coil in the winding groove 20 close to the wire hanging post 40 is directly fixed to the wire hanging post 40, and the end of the coil in the winding groove 20 away from the wire hanging post 40 is first wound around the reversing post 30 and then fixed to the wire hanging post 40.

[0054] The wire hanging post 40 is the starting and ending point of the winding, located at the bottom of the wire rack, and can provide a stable base for the coil. For the ends of the coil in the winding slot 20 far away from the wire hanging post 40, they are first wound on the reversing post 30 and then fixed to the wire hanging post 40. This process injects flexibility into the winding process. The function of the reversing post 30 is to change direction. As a relay point, it balances the process of transferring the coil from one winding slot 20 to another winding slot 20, ensuring the smoothness and efficiency of the coil movement, while also avoiding the physical damage that the coil may encounter during the winding process.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A forward and reverse direct winding winding frame, characterized in that: It includes a bobbin body, a winding groove arranged on the bobbin body, and a commutation column arranged on the bobbin body, a coil is wound in the winding groove, there are multiple winding grooves, the multiple winding grooves are distributed at intervals, there is a gap between two adjacent winding grooves, the commutation column is arranged in the gap, and the current directions of the coils wound in two adjacent winding grooves are opposite to each other after passing through the commutation column.

2. The forward and reverse direct winding winding frame according to claim 1, characterized in that: The winding groove is circumferentially excavated on the wire rack body.

3. The forward and reverse direct winding winding frame according to claim 1, characterized in that: The commutation column is provided with a receiving groove for receiving the coil.

4. The forward and reverse direct winding winding frame according to claim 1, characterized in that: Two adjacent winding grooves are parallel to each other.

5. The forward and reverse direct winding winding frame according to claim 1, characterized in that: It also includes a wire hanging post, which is arranged on the wire rack body, and the starting wire end and the ending wire end of the coil are fixed to the wire hanging post.

6. The forward and reverse direct winding winding frame according to claim 5, characterized in that: One or more commutation posts are arranged at the gap between two adjacent winding slots.

7. The forward and reverse direct winding winding frame according to claim 6, characterized in that: The wire hanging post is located at the bottom of the wire rack body, the end of the coil in the winding groove close to the wire hanging post is directly fixed to the wire hanging post, and the end of the coil in the winding groove far from the wire hanging post is firstly wound around the reversing post and then fixed to the wire hanging post.

8. A motor, characterized in that: It comprises a forward and reverse straight-winding winding frame as described in any one of claims 1 to 7.

9. A camera, characterized in that: Comprising a motor as claimed in any one of claim 8.

10. An electronic device, characterized in that: Comprising a camera as described in any one of claim 9.

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