Motor base and motor

Abstract

The application discloses a motor base, belonging to the motor field, comprising a metal circuit, a plastic base injected into the metal circuit and a metal frame embedded into the plastic base, the metal frame comprising a bottom plate and at least one column fixed with the bottom plate, the at least one column being in a three-dimensional structure and comprising a first side arm and a second side arm fixed with the first side arm at an angle, at least one of the first side arm and the second side arm being integrally connected and fixed with the bottom plate, the first side arm, the second side arm and the bottom plate being integrally punched to ensure the fixation of the metal three-dimensional support structure in X and Y directions, prevent the generation of skew in the injection molding and the matching use process, and enhance the structural strength and the molding accuracy of the metal frame. The application also relates to a motor comprising the motor base.

Description

Technical Field

[0001] This invention relates to the field of motor technology, and in particular to a motor base. Background Technology

[0002] With the continuous development of electronic technology, mobile terminals such as smartphones and tablets have become commonly used electronic devices. Currently, mobile terminals with cameras are becoming increasingly prevalent. Cameras enable mobile terminals to take photos and videos while simultaneously providing call functionality, greatly enriching and expanding their usability and adding much enjoyment to people's lives. Camera modules are typically located inside the mobile terminal and are generally positioned using a motor base.

[0003] In existing technologies, camera modules include lenses, voice coil motors, sensors for imaging, and integrated circuit boards. The motor is used to fix the lens or control its movement, and can move the lens in one or more directions to assist in focusing and image stabilization. Specifically, the motor includes at least a plastic base, multiple coils electrically connected to the plastic base, multiple magnets opposite to and interacting with the coils, and a lens mount controlled by the coils and magnets. When the coils are energized, they interact with the magnets to move the lens mount, thereby assisting in focusing and image stabilization.

[0004] The plastic base of a motor mount is typically an injection-molded plastic part. To improve the structural strength of the plastic base while reducing its thickness to meet the trend of miniaturization, a metal plate is often incorporated within it to enhance structural strength. However, during the injection molding process, the metal plate is subject to impact from the plastic, causing it to tilt. Furthermore, the plastic base itself can cause the metal plate to tilt during use, resulting in reduced structural strength and lower molding precision for the motor mount.

[0005] In existing technologies, metal brackets include a base plate and side plates. The side plates are set on the four sides of the base plate, that is, the side plates are integrally connected to the four sides of the base plate to enhance structural strength. However, since this type of metal bracket with side plates integrally connected to the four sides of the base plate is set by an integral pull-out method, the side plates of the metal bracket extend a long distance in the plastic base of the motor base, which is not suitable for the integral pull-out method. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, one of the objectives of the present invention is to provide a motor base that can enhance the structural strength and molding accuracy of the motor while preventing the metal frame columns from tilting during injection molding and use.

[0007] One of the objectives of this invention is achieved through the following technical solution:

[0008] A motor base includes metal wiring, a plastic base injection-molded onto the metal wiring, and a metal frame embedded in the plastic base. The metal frame includes a base plate and at least one column fixed to the base plate. The at least one column has a three-dimensional structure and includes a first side arm and a second side arm fixed at an angle to the first side arm. At least one of the first side arm and the second side arm is integrally connected and fixed to the base plate. The first side arm, the second side arm, and the base plate are integrally stamped.

[0009] Furthermore, the first side arm is integrally connected and fixed to the base plate, while the second side arm is separately set and fixedly fitted to the base plate.

[0010] Furthermore, the first side arm is integrally bent from the base plate, and the second side arm is integrally bent from the first side arm; and the column rotates around the part where the first side arm is connected to the base plate as a rotation axis until the second side arm is fixedly engaged with the base plate.

[0011] Furthermore, both the first side arm and the second side arm are perpendicular to the base plate, and the first side arm and the second side arm are perpendicular to each other.

[0012] Furthermore, a process notch is provided at the connection between the first side arm and the base plate and at the connection between the second side arm and the first side arm. The process notch at the connection between the second side arm and the first side arm is formed simultaneously in the first side arm and the second side arm, and is provided at the ends of the first side arm and the second side arm near the base plate.

[0013] Furthermore, the second side arm includes a second plate integrally connected to the first side arm, and a gap is formed between the end of the second plate near the bottom plate and the bottom plate.

[0014] Furthermore, the base plate includes a snap-fit ​​portion, and the second side arm is provided with a positioning portion, the positioning portion cooperating with the snap-fit ​​portion to position the second side arm with the base plate.

[0015] Furthermore, the latching part includes a slot, and the positioning part of the second side arm is installed in the slot.

[0016] Furthermore, the positioning part extends from the second plate body, the positioning part and the second plate body are located on the same plane, and the buckle part is integrally bent from the base plate at the buckle groove position.

[0017] Furthermore, the latching part also includes a latching block, which is located on the outer side of the latching groove away from the base plate and perpendicular to the base plate, and the latching block stops on the outer side of the second side arm.

[0018] Furthermore, the card block has a protrusion on the inner side facing the base plate, and the second side arm has a buckle hole, with the protrusion buckling into the buckle hole.

[0019] Furthermore, the top of the card block is provided with a first inclined surface, the convex bulge is provided with a second inclined surface, the first inclined surface and the second inclined surface are inclined upwards, and the second plate is provided with a sixth inclined surface near the end of the bottom plate, the sixth inclined surface being located at the end of the second plate near the card block.

[0020] Furthermore, the positioning part is provided with a fifth inclined surface, which is located on the side of the positioning part facing the card block.

[0021] Furthermore, the positioning part is perpendicular to the second plate, the buckle part is perpendicular to the base plate, the slot is located at both the base plate and the buckle part, and the positioning part is at least partially engaged in the slot.

[0022] Furthermore, the top of the latching part is provided with a first inclined surface, which faces the base plate, and the end of the positioning part is provided with a fifth inclined surface, which faces the base plate and the latching part.

[0023] Furthermore, the positioning part is perpendicular to the second plate body, and the buckling part includes two stop plates. The two stop plates extend from the bottom plate and form a slot between the two stop plates. One side of the slot is open to form a positioning opening. The positioning part is fitted into the positioning opening and is fixedly connected to the stop plates by riveting or welding.

[0024] Furthermore, both the first side arm and the second side arm are integrally connected and fixed to the base plate, while the first side arm and the second side arm are separately set and fixedly fitted together.

[0025] Furthermore, the first side arm and the second side arm extend from the base plate and are formed by bending the base plate, and the first side arm and the second side arm are fixed to each other.

[0026] Furthermore, the first side arm includes a first plate and an extension plate, the extension plate being formed by bending the first plate, the outer side of the second side arm in the length direction abutting against the first plate, and the outer side of the second side arm in the width direction abutting against the extension plate.

[0027] Furthermore, the second side arm includes a second plate and a positioning part. The positioning part includes a straight portion extending from the second plate and located on the same plane as the second plate. The first side arm has a groove on the side facing the extension plate. The straight portion is partially located in the groove and abuts against the inner wall of the groove.

[0028] Furthermore, the positioning part also includes a blocking part that is offset from the straight part. The blocking part has a blocking wall that is perpendicular to the second plate and blocks the outer side of the first side arm.

[0029] Furthermore, the column is provided with several through-holes for gripping adhesive.

[0030] Furthermore, the plastic base includes a bottom surface that mates with the base plate and a retaining wall and / or a positioning post, wherein the retaining wall and / or the positioning post are vertically disposed on the bottom surface, the base plate is disposed on the bottom surface, and the upright is disposed on the retaining wall and / or the positioning post.

[0031] Furthermore, the first side arm is embedded in the retaining wall, and the second side arm is embedded in the positioning post; or, the first side arm is embedded in one of the retaining walls, and the second side arm is embedded in another adjacent retaining wall; or the first side arm and the second side arm are embedded in the same retaining wall.

[0032] Furthermore, the plastic base is injection molded onto the metal circuit and the metal frame, and the column is covered by the retaining wall and / or the positioning column.

[0033] Furthermore, at least one of the second side arm or the first side arm is provided with a fixing foot at its end away from the base plate for welding and fixing the spring, the fixing foot being exposed on the top surface of the retaining wall and / or the positioning post.

[0034] The second objective of this invention is achieved by the following technical solution:

[0035] A motor includes the aforementioned motor base and lens assembly, wherein the lens assembly is disposed within the metal frame of the motor base.

[0036] Furthermore, the motor also includes a reed, one end of which is welded and fixed to the metal frame.

[0037] Compared with the prior art, the motor base and motor of the present invention have the following advantages: by setting at least one of the first side arm and the second side arm of the column to be integrally connected and fixed to the base plate, and the first side arm, the second side arm and the base plate are integrally stamped, the column is fixed in both X and Y directions, preventing skewing during injection molding and use, and enhancing the structural strength and molding accuracy of the metal frame. Attached Figure Description

[0038] Figure 1 This is a perspective view of the motor base in the first embodiment of the present invention;

[0039] Figure 2 for Figure 1 A three-dimensional view of the internal structure of the motor base;

[0040] Figure 3 for Figure 2 A three-dimensional view of the metal frame of the motor base;

[0041] Figure 4 for Figure 3 A partial three-dimensional view of the metal frame structure;

[0042] Figure 5 for Figure 3 A partial three-dimensional view of the base plate of the metal frame;

[0043] Figure 6 For Figure 3 A partial three-dimensional view of the columns of the metal frame;

[0044] Figure 7 for Figure 3 Another perspective view of the metal frame;

[0045] Figure 8 for Figure 7 Enlarged view of the metal frame at point A;

[0046] Figure 9 This is a perspective view of the internal structure of the motor base in the second embodiment of the present invention;

[0047] Figure 10 for Figure 9 Enlarged view of point B on the motor base;

[0048] Figure 11 for Figure 9 A partial structural diagram of the motor base;

[0049] Figure 12 This is a perspective view of the internal structure of the motor base in the third embodiment of the present invention;

[0050] Figure 13 for Figure 12Enlarged view of point C on the motor base;

[0051] Figure 14 This is a perspective view of the internal structure of the motor base in the fourth embodiment of the present invention;

[0052] Figure 15 for Figure 14 A partial three-dimensional view of the metal frame structure;

[0053] Figure 16 for Figure 15 A perspective view of the second side arm of the metal frame;

[0054] Figure 17 for Figure 16 A partial structural diagram of the second side arm;

[0055] Figure 18 for Figure 15 A perspective view of the first side arm of the metal frame.

[0056] In the diagram: 10. Metal frame; 11. Base plate; 110. Main body; 111. Buckle part; 1110. Buckle block; 1111. First inclined surface; 1112. Protrusion; 1113. Second inclined surface; 1114. Stop plate; 1115. Positioning port; 113. Slot; 12. Column; 120. First side arm; 1201. First plate; 1202. First adhesive hole; 1203. Extension plate; 1204. Third inclined surface; 1205. Groove ; 1206, Fourth inclined surface; 121, Second side arm; 1210, Second plate; 1211, Fixed foot; 1212, Positioning part; 1213, Blocking part; 1214, Sixth inclined surface; 1215, Second adhesive gripping hole; 1216, Buckle hole; 1217, Straight part; 1218, Blocking wall; 123, Process notch; 124, Gap; 20, Plastic base; 21, Bottom surface; 22, Retaining wall; 23, Positioning post; 30, Metal wiring. Detailed Implementation

[0057] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0058] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or it can be fixed through another intermediate component. When a component is said to be "connected to" another component, it can be directly connected to the other component or it may be fixed through another intermediate component. When a component is said to be "set on" another component, it can be set directly on the other component or it may be set through another intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0059] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0060] First Embodiment

[0061] In the prior art, motors can be used in camera modules of handheld devices such as mobile phones or tablets. Due to the thickness limitations of mobile phones, the conventional vertical placement (i.e., facing outwards on the surface of the phone) results in a smaller focal length and limited optical zoom capability for the mobile phone camera. Therefore, in some existing technical solutions, the motor can be placed horizontally inside the phone. In the preferred embodiment of the invention, the motor base is suitable for a periscope-type voice coil motor. Of course, the invention can also be applied to other embodiments such as ordinary voice coil motors and piezoelectric motors. In the preferred embodiment of the present invention, the motor base includes a bottom surface 21 and a retaining wall 22 and / or positioning post 23 structure formed on the top periphery of the bottom surface 12. The retaining wall 22 and / or positioning post 23 are used to protect the internal lens, coil, and metal circuitry in the camera module, and serve as a frame support.

[0062] Figures 1 to 8 The first embodiment of the motor base of the present invention is shown. In the first embodiment, the motor base includes a metal frame 10, a plastic base 20 injection molded on the metal frame 10, and a metal line 30 injection molded inside the plastic base 20. The metal line 30 is located above the metal frame 10 and is electrically isolated from the metal frame 10.

[0063] Please continue reading. Figure 3The metal frame 10 includes a base plate 11 and at least one column 12, with the at least one column 12 perpendicular to the base plate 11. The base plate 11 and the at least one column 12 are formed by metal stamping and are a one-piece structure. Specifically, the base plate 11 is rectangular, and there are two columns 12, which are located at the two corners of the same side of the base plate 11.

[0064] Please continue reading. Figures 4 to 6 The base plate 11 includes a main body 110 and a latching part 111 connected to the main body 110. The latching part 111 is located at the edge of the main body 110, and the two are bent at an angle relative to each other. The latching part 111 is used to guide and latch with the second side arm 121, so that the bottom of the second side arm 121 is positioned relative to the base plate 11, preventing the second side arm 121 from shaking relative to the base plate 11. Specifically, the latching part 111 includes a latching block 1110 perpendicular to the base plate 11 and a protrusion 1112 protruding from the inner side of the latching block 1110. The latching block 1110 extends from the main body 110 and is stamped and bent so that it is perpendicular to the main body 110. The top of the latching block 1110 is provided with a first inclined surface 1111, which is located on the side of the latching block 1110 facing the main body 110 and inclined upward. The protrusion 1112 is located on the side of the locking block 1110 facing the main body 110. The protrusion 1112 has a second inclined surface 1113, which faces the main body 110 and tilts upwards. The arrangement of the first inclined surface 1111 and the second inclined surface 1113 ensures that when the column 12 rotates, the second side arm 121 first contacts the upper half of the locking block 1110 and the protrusion 1112 without interference, and also provides a guiding effect to ensure smooth cooperation between them. A slot 113 is also provided at the bend of the latching part 111 relative to the base plate 11, i.e., at the connection point. The slot 113 is located at both the main body 110 and the latching part 111. The slot 113 is used to insert and engage with the bottom of the second side arm 121, allowing the second side arm 121 to be positioned and engaged with the base plate 11. The card block 1110 is located on the outer side of the card slot 113 away from the motherboard 110 and perpendicular to the base plate 11. The card block 1110 stops on the outer side of the second side arm 121.

[0065] Each column 12 includes a first side arm 120 and a second side arm 121 as described above. An angle exists between the first side arm 120 and the second side arm 121, forming a three-dimensional support structure. The first side arm 120 is formed by stamping and bending a base plate 11, and the second side arm 121 is formed by stamping and bending the first side arm 120. During the forming process of the column 12, a flat plate (i.e., the precursor of the column 12) is integrally stamped from a metal plate. The flat plate is then bent to form the first side arm 120 and the second side arm 121, which form an angle between them. The column 12 rotates / bends around the connection point between the first side arm 120 and the base plate 11 as a rotation axis until the second side arm 121 is fixedly engaged with the snap-fit ​​portion 111 of the base plate 11. In this preferred embodiment, specifically, the first side arm 120 and the second side arm 121 are perpendicular to the base plate 11, and the first side arm 120 and the second side arm 121 are perpendicular. It can be understood that in other embodiments, the included angle between the first side arm 120 and the second side arm 121 can be adaptively adjusted based on the requirements of the internal space of the motor base.

[0066] A process notch 123 is provided between the bottom of the first side arm 120 near the base plate 11 and the bottom of the second side arm 121 near the base plate 11. The presence of the process notch 123 ensures the flatness of the first side arm 120 and the second side arm 121 after bending, prevents excess flat material from being extruded and causing wrinkles, and avoids damage to the metal frame 10 caused by metal bending stress. In this preferred embodiment, the process notch 123 between the second side arm 121 and the first side arm 120 is formed simultaneously in both the first side arm 120 and the second side arm 121, and is provided at the ends of the first side arm 120 and the second side arm 121 near the base plate 11.

[0067] There is a gap 124 between the bottom end of the second side arm 121 and the base plate 11. The gap 124 allows the first side arm 120 to have appropriate space for excessive bending. That is, the first side arm 120 first exhibits a certain degree of excessive bending, such as bending the first side arm 120 to an angle of 85° with the base plate 11. At this time, the bottom surface of the second side arm 121 will abut against the upper surface of the base plate 11 to prevent the first side arm 120 from further excessive bending. The first side arm 120 can also rebound to the required position / angle, that is, a 90° angle position, through its own rigidity. In addition, the size control of the gap 124 can also prevent the first side arm 120 from further excessive bending relative to the base plate 11, thereby accurately controlling the accuracy of the first bending of the first side arm 120 and ensuring that the first side arm 120 can return to a 90° angle position after rebounding.

[0068] Specifically, the first side arm 120 includes a first plate 1201, the bottom of which is integrally fixedly connected to the base plate 11. The first plate 1201 is provided with first adhesive-gripping holes 1202, which are used to allow the injected plastic to enter during subsequent injection molding to tightly bond with the column 12. There are multiple first adhesive-gripping holes 1202, which are evenly spaced along the vertical direction on the first plate 1201.

[0069] The second side arm 121 includes a second plate 1210, fixing feet 1211 extending from two opposite ends of the second plate 1210, and a positioning part 1212. The second plate 1210 extends from the side of the first plate 1201 and is perpendicular to and integrally fixedly connected to the first plate 1201. The fixing feet 1211 are located at the top of the second plate 1210, and the positioning part 1212 is located at the bottom of the second plate 1210. The second plate 1210, fixing feet 1211, and positioning part 1212 are stamped and formed as a single piece. The fixing feet 1211 are formed by bending the top of the second plate 1210 and are perpendicular to the second plate 1210. The fixing feet 1211 are used to fix the spring of the motor, providing a more stable support point for the spring. The positioning part 1212 is located on the same plane as the second plate 1210. The second plate 1210 is provided with a second adhesive gripping hole 1215 and a snap-fit ​​hole 1216. The second adhesive gripping hole 1215 is used to ensure that the injected plastic is tightly bonded to the column 12 during subsequent injection molding. There are multiple second adhesive gripping holes 1215, which are evenly spaced along the vertical direction on the second plate 1210. The snap-fit ​​hole 1216 is used to engage and fix the second side arm 121 with the snap-fit ​​part 111.

[0070] The bottom of the positioning part 1212 is provided with a fifth inclined surface 1213, which faces the locking block 1110 and slopes downward. The bottom of the second plate 1210 is provided with a sixth inclined surface 1214, which faces the locking block 1110 and slopes downward. The arrangement of the fifth inclined surface 1213 and the sixth inclined surface 1214 ensures that when the column 12 rotates, the second side arm 121 does not interfere with the locking block 1110 and its protrusion 1112 when they come into contact, and can also play a guiding role to ensure smooth cooperation between the two.

[0071] Please continue reading. Figure 7 as well as Figure 8During the manufacturing process of the metal frame 10, a base plate 11 and a flat plate (the precursor of the column 12) are integrally stamped from a flat metal sheet. The flat plate is then bent to form a first side arm 120 and a second side arm 121 that form an angle between each other, thus creating the three-dimensional column 12. The column 12 then rotates / bends around the connection between the first side arm 120 and the base plate 11. During the bending process, the positioning part 1212 of the second side arm 121 first contacts the upper half of the locking block 1110 and the protrusion 1112 until the positioning part 1212 is inserted into the locking slot 113. At this time, the protrusion 1112 is located in the buckle hole 1216, and the second side arm 121 is fixedly engaged with the base plate 11.

[0072] Please continue reading. Figure 1 as well as Figure 2During the manufacturing of the motor base, metal lines 30 are positioned at intervals on the base plate 11 of the metal frame 10. The metal lines 30 and the base plate 11 are placed together in an injection mold for plastic injection molding. The molten plastic covers the base plate 11 and the metal lines 30, thereby forming the bottom surface 21 of the plastic base 20. The molten plastic also forms a retaining wall 22 and / or a positioning post 23 perpendicular to the bottom surface 21. In this embodiment, the plastic base 20 is provided with both retaining walls 22 and positioning posts 23, and the uprights 12 are embedded or inlaid in the retaining walls 22 and positioning posts 23. Specifically, the first side arm 120 is embedded or inlaid in the retaining wall 22, and the second side arm 121 is embedded or inlaid in the positioning post 23. In other embodiments, the plastic base 20 may be provided with retaining walls 22 or positioning posts 23 alone, and the uprights 12 are correspondingly embedded in the retaining walls 22 or positioning posts 23. The fixing feet 1211 of the second side arm 121 extend from the retaining wall 22 or the positioning post 23. During the injection molding process, since the first side arm 120 is integrally connected to the base plate 11, and the second side arm 121 is separately set and fixedly fitted to the base plate 11, the column 12 is fixed in both the X and Y directions (the length direction of the first plate 1201 of the first side arm 120 of the column 12 is defined as the X direction, and the length direction of the second plate 1210 of the second side arm 121 of the column 12 is defined as the Y direction), preventing skewing during injection molding and use (the integral connection between the first side arm 120 and the base plate 11 prevents the second side arm 121 from skewing, and the fixed fit between the second side arm 121 and the base plate 11 prevents the first side arm 120 from skewing), thus enhancing the structural strength and molding accuracy of the metal frame 10. It is understood that in this embodiment, of the first side arm 120 and the second side arm 121 of the column 12, only the first side arm 120 is connected to the base plate 11 when the base plate 11 is integrally stamped, while the second side arm 121 is assembled and fixed to the base plate 11 in a subsequent assembly process. In other embodiments, since the second side arm 121 and the first side arm 120 are themselves three-dimensional structures, the second side arm 121 may not need to be assembled and fixed to the base plate 11. This method can save processes and also has the effect of improving the strength of the column 12.

[0073] It is understood that in other embodiments, the metal frame 10 can also be assembled with the plastic base 20 in other ways. In this case, the metal frame 10 does not need to bear the injection impact force during the injection molding process of the plastic base 20, but it can still strengthen the structural strength of the retaining wall 22 or positioning column 23 of the plastic base 20, resist the impact and vibration during the use of the motor, and thus improve the service life of the motor.

[0074] Second Embodiment

[0075] Please continue reading. Figures 9 to 11 , Figures 9 to 11This is a second embodiment of the motor base of the present invention. In the second embodiment, the structure of the motor base is largely the same as that in the first embodiment, except that: the latching part 111 extends from the base plate 11 and is perpendicular to the base plate 11, and the latching part 111 is provided with a latching groove 113. The positioning part 1212 extends from the second plate 1210 and is bent relative to the second plate 1210 to be perpendicular to the second plate 1210, thereby forming a latch. The bottom of the second plate 1210 is provided with a fifth inclined surface 1213, which faces the base plate 11 and the latching part 111. The top of the latching part 111 is provided with a first inclined surface 1111. During the manufacturing of the metal frame 10, a flat plate (i.e., the precursor of the column 12) is integrally stamped from a metal sheet. The flat plate is then bent to form a first side arm 120 and a second side arm 121 that form an angle with each other. The column 12 rotates / bends around the connection point between the first side arm 120 and the base plate 11. During the bending process, the positioning part 1212 of the second side arm 121 first contacts the first inclined surface 1111 at the top of the latching part 111 until the positioning part 1212 is inserted into the slot 113. Compared with the first embodiment, this design eliminates the latching part 111 and the protrusion 1112 structure, reducing the thickness of the second side arm 121 of the plastic base 20, which is beneficial for the miniaturization of the motor base.

[0076] Third Embodiment

[0077] Please continue reading. Figures 12 to 13 , Figures 12 to 13 This is a third embodiment of the motor base of the present invention. In the third embodiment, the structure of the motor base is generally the same as that in the first embodiment, except that: the latching part 111 consists of two stop plates 1114 extending from the base plate 11. The two stop plates 1114 are located on the same plane as the main body 110 and are spaced apart. A slot 113 is formed between the two stop plates 1114. One side of the slot 113 is open to form a positioning port 1115. The positioning part 1212 extends from the second plate 1210 and is bent relative to the second plate 1210 to be perpendicular to the second plate 1210. During the manufacturing of the metal frame 10, a flat plate (i.e., the precursor of the column 12) is integrally stamped from a metal sheet. The flat plate is bent to form a first side arm 120 and a second side arm 121 that form an angle with each other. The column 12 rotates / bends with the part where the first side arm 120 is connected to the base plate 11 as the axis of rotation. During the bending process, the positioning part 1212 of the second side arm 121 extends into the positioning port 1115 and is fixed to the stop plate 1114 by riveting or welding. Compared with the first embodiment, this design also eliminates the buckle part 111 and the protrusion 1112 structure, which reduces the thickness of the second side arm 121 of the plastic base 20, which is conducive to the miniaturization of the motor base. In addition, the overall structure of the metal frame 10 is simple and easy to manufacture.

[0078] Fourth embodiment

[0079] Please continue reading. Figures 14 to 17 , Figures 14 to 17 This is a fourth embodiment of the motor base of the present invention. In the fourth embodiment, the structure of the motor base is roughly the same as that in the first embodiment, except that: the first side arm 120 and the second side arm 121 are integrally connected and fixed to the base plate 11, and the first side arm 120 and the second side arm 121 are separately arranged and fixedly fitted, that is, the first side arm 120 and the second side arm 121 are both formed by bending the base plate 11.

[0080] The first side arm 120 includes a first plate 1201 and an extension plate 1203. The extension plate 1203 is formed by bending the first plate 1201 and is perpendicular to the first plate 1201. The bottom of the first plate 1201 is connected to the base plate 11. A groove 1205 is provided on the side of the first plate 1201, and the inner wall of the groove 1205 is a fourth inclined surface 1206. A third inclined surface 1204 is provided at the end of the extension plate 1203. The fourth inclined surface 1206 and the third inclined surface 1204 are used to ensure that the positioning part 1212 contacts the fourth inclined surface 1206 to avoid interference when the second side arm 121 is bent and inserted into the first side arm 120.

[0081] The second side arm 121 includes a positioning portion 1212, which includes a straight portion 1217 extending from the side of the second plate 1210 and located on the same plane as the second plate 1210. The straight portion 1217 is partially located in the groove 1205 and abuts against the inner wall of the groove 1205. The positioning portion 1212 also includes a blocking portion 1213 that is offset from the straight portion 1217. The blocking portion 1213 has a blocking wall 1218 that is perpendicular to the second plate 1210 and stops against the outer side of the first side arm 120.

[0082] When manufacturing the metal frame 10, the first side arm 120 can be bent first, but the extension plate 1203 can be left unbent. Then, the second side arm 121 can be bent. During the bending of the second side arm 121, the outer side of the second side arm 121 in the length direction abuts against the first plate 1201. The straight part 1217 of the positioning part 1212 is inserted into the groove 1205, and the inner wall of the groove 1205 abuts against the straight part 1217. The blocking part 1213 of the positioning part 1212 stops against the outer side of the first side arm 120. Then, the extension plate 1203 of the first side arm 120 is bent so that the outer side of the first side arm 121 in the width direction abuts against the extension plate 1203. Compared with the first embodiment, in this design, both the first side arm 120 and the second side arm 121 are integrally connected and fixed to the base plate 11. The second side arm 121 does not need to be separately fixed to the base plate 11, but the first side arm 120 and the second side arm 121 need to be connected. Compared with the first to third embodiments, this embodiment provides a more stable connection between the first side arm 120 and the second side arm 121 and the base plate 11.

[0083] Compared with the prior art, the metal frame 10 of the present invention is formed by integral stamping and then stamping and bending to form a three-dimensional metal support frame, namely the column 12. The first side arm 120 and the second side arm 121 of the column 12 can be formed by integral stamping and bending from a planar metal sheet according to actual size and shape requirements. Its length, width and shape are not strictly limited, greatly improving manufacturing flexibility and elasticity and significantly reducing manufacturing costs. The three-dimensional frame has good resistance to injection molding pressure and impacts and vibrations during motor use, greatly improving the stability of the motor base, and also has the following advantages:

[0084] 1. By setting at least one of the first side arm 120 and the second side arm 121 of the column 12 to be integrally connected and fixed to the base plate 11, and the first side arm 120, the second side arm 121 and the base plate 11 are integrally stamped, the structural stability of the column 12 can be improved. Compared with a metal column with only the first side arm 120, the stability and strength are better. It also ensures the fixation of the column 12 in the X and Y directions, preventing skewing during injection molding and use (the integral connection of the first side arm 120 and the base plate 11 prevents the second side arm 121 from skewing, and the fixed cooperation or integral connection of the second side arm 121 and the base plate 11 prevents the first side arm 120 from skewing), thereby enhancing the structural strength and molding accuracy of the metal frame 10.

[0085] 2. The first side arm 120 is located in the retaining wall 22, and the second side arm 121 is located in the positioning post 23. When the motor base is a support for the periscope motor, the positioning post 23 can limit the moving part (moving part) of the lens assembly. Due to the three-dimensional metal support structure, the structural strength of the positioning post 23 is enhanced, preventing the positioning post 23 from tilting when the moving part of the periscope motor hits the positioning post 23.

[0086] 3. A process notch 123 is provided between the bottom of the first side arm 120 near the base plate 11 and the bottom of the second side arm 121 near the base plate 11. The process notch 123 ensures the flatness of the first side arm 120 and the second side arm 121 after bending, prevents excess flat material from being squeezed out and causing wrinkles, and avoids damage to the metal frame 10 caused by bending stress.

[0087] 4. The gap 124 between the bottom surface 21 of the second side arm 121 and the surface of the base plate 11 provides the first side arm 120 with adequate space for over-bending to spring back to the required position / angle through its own rigidity. The existence of this gap 124 also prevents the metal plate from further over-bending of the first side arm 120, thereby controlling the accuracy of over-bending of the first side arm 120.

[0088] 5. The upper half of the locking block 1110, the protrusion 1112, and the second side arm 121 are provided with inclined surfaces to ensure that when the metal three-dimensional support structure rotates, the second side arm 121 first contacts the upper half of the locking block 1110 and the protrusion 1112, and the second side arm 121 does not interfere with the locking block 1110 and its protrusion 1112, thus ensuring the fit between the two.

[0089] 6. The fixing foot 1211 is fixedly connected to the spring by welding, which serves to fix the spring. Compared with the existing technology of fixing the spring by applying glue, the fixing effect is more stable.

[0090] 7. Several adhesive holes are provided on the column 12 to ensure that the injected plastic is tightly bonded to the column 12 during subsequent injection molding.

[0091] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These are all equivalent modifications and improvements made to the above embodiments based on the essential technology of the present invention, and all of these fall within the protection scope of the present invention.

Claims

1. A motor base, comprising metal wiring, a plastic base injection-molded onto the metal wiring, and a metal frame embedded in the plastic base, characterized in that: The metal frame includes a base plate and at least one column fixed to the base plate. The at least one column has a three-dimensional structure and includes a first side arm and a second side arm fixed at an angle to the first side arm. The first side arm and the base plate are integrally connected and fixed, and the second side arm and the first side arm are integrally connected and fixed and are separately disposed from the base plate. Alternatively, both the first side arm and the second side arm may be integrally connected and fixed to the base plate, and the second side arm may be separately disposed from the first side arm; the first side arm, the second side arm, and the base plate may be integrally stamped and bent to form the column.

2. The motor base according to claim 1, characterized in that: The second side arm is fixedly engaged with the base plate.

3. The motor base according to claim 2, characterized in that: The first side arm is integrally bent from the base plate, and the second side arm is integrally bent from the first side arm; and the column rotates around the part where the first side arm is connected to the base plate as a rotation axis until the second side arm is fixedly engaged with the base plate.

4. The motor base according to claim 3, characterized in that: Both the first side arm and the second side arm are perpendicular to the base plate, and the first side arm and the second side arm are perpendicular to each other.

5. The motor base according to claim 3, characterized in that: A process notch is provided at the connection between the first side arm and the base plate and at the connection between the second side arm and the first side arm. The process notch at the connection between the second side arm and the first side arm is formed simultaneously in the first side arm and the second side arm, and is provided at the ends of the first side arm and the second side arm near the base plate.

6. The motor base according to claim 3, characterized in that: The second side arm includes a second plate integrally connected to the first side arm, and a gap is formed between the end of the second plate near the bottom plate and the bottom plate.

7. The motor base according to claim 6, characterized in that: The base plate includes a snap-fit ​​part, and the second side arm is provided with a positioning part. The positioning part cooperates with the snap-fit ​​part to position the second side arm with the base plate.

8. The motor base according to claim 7, characterized in that: The buckle includes a slot, and the positioning part of the second side arm is installed in the slot.

9. The motor base according to claim 8, characterized in that: The positioning part extends from the second plate and is located on the same plane as the second plate. The buckle part is integrally bent from the base plate at the slot position.

10. The motor base according to claim 9, characterized in that: The latching part further includes a latching block, which is located on the outer side of the latching groove away from the base plate and perpendicular to the base plate, and the latching block stops on the outer side of the second side arm.

11. The motor base according to claim 10, characterized in that: The card block has a protrusion facing the inner side of the base plate, and the second side arm has a buckle hole, with the protrusion buckling into the buckle hole.

12. The motor base according to claim 11, characterized in that: The top of the card block is provided with a first inclined surface, the convex bulge is provided with a second inclined surface, the first inclined surface and the second inclined surface are inclined upwards, and the end of the second plate near the bottom plate is provided with a sixth inclined surface, the sixth inclined surface being located at the end of the second plate near the card block.

13. The motor base according to claim 12, characterized in that: The positioning part is provided with a fifth inclined surface, which is located on the side of the positioning part facing the card block.

14. The motor base according to claim 8, characterized in that: The positioning part is perpendicular to the second plate, the buckle part is perpendicular to the base plate, the slot is located at both the base plate and the buckle part, and the positioning part is at least partially engaged in the slot.

15. The motor base according to claim 14, characterized in that: The top of the latching part is provided with a first inclined surface, which faces the base plate. The end of the positioning part is provided with a fifth inclined surface, which faces the base plate and the latching part.

16. The motor base according to claim 8, characterized in that: The positioning part is perpendicular to the second plate. The buckle part includes two stop pieces. The two stop pieces extend from the bottom plate and form a slot between the two stop pieces. One side of the slot is open to form a positioning opening. The positioning part is fitted into the positioning opening and is fixedly connected to the stop pieces by riveting or welding.

17. The motor base according to claim 1, characterized in that: The first side arm and the second side arm are fixedly engaged.

18. The motor base according to claim 17, characterized in that: The first side arm and the second side arm extend from the base plate and are formed by bending the base plate, and the first side arm and the second side arm are fixed to each other.

19. The motor base according to claim 18, characterized in that: The first side arm includes a first plate and an extension plate. The extension plate is formed by bending the first plate. The outer side of the second side arm in the length direction abuts against the first plate, and the outer side of the second side arm in the width direction abuts against the extension plate.

20. The motor base according to claim 19, characterized in that: The second side arm includes a second plate and a positioning part. The positioning part includes a straight part that extends from the second plate and is located on the same plane as the second plate. The first side arm has a groove on the side facing the extension plate. The straight part is partially located in the groove and abuts against the inner wall of the groove.

21. The motor base according to claim 20, characterized in that: The positioning part further includes a blocking part that is offset from the straight part. The blocking part has a blocking wall that is perpendicular to the second plate and blocks the outer side of the first side arm.

22. The motor base according to claim 1, characterized in that: The column is provided with several through-holes for gripping adhesive.

23. The motor base according to claim 1, characterized in that: The plastic base includes a bottom surface that mates with the base plate and a retaining wall and / or a positioning post. The retaining wall and / or the positioning post are vertically arranged on the bottom surface, the base plate is arranged on the bottom surface, and the upright is arranged on the retaining wall and / or the positioning post.

24. The motor base according to claim 23, characterized in that: The first side arm is embedded in the retaining wall, and the second side arm is embedded in the positioning post; or, the first side arm is embedded in one of the retaining walls, and the second side arm is embedded in another adjacent retaining wall; or the first side arm and the second side arm are embedded in the same retaining wall.

25. The motor base according to claim 23, characterized in that: The plastic base is injection molded onto the metal circuit and the metal frame, and the column is covered by the retaining wall and / or the positioning column.

26. The motor base according to claim 25, characterized in that: The second side arm or at least one of the first side arms has a fixing foot at its end away from the base plate for welding and fixing the spring, and the fixing foot is exposed on the top surface of the retaining wall and / or the positioning post.

27. A motor, characterized in that: It includes a motor base and a lens assembly as described in any one of claims 1-26, wherein the lens assembly is disposed within the metal frame of the motor base.

28. The motor according to claim 27, characterized in that: The motor also includes a reed, one end of which is welded and fixed to the metal frame.

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