WO2022213484A1 - Base having coil, and periscopic voice coil motor and manufacturing method therefor - Google Patents

Abstract

The present invention provides a base having a coil, the base comprising: a rectangular insulating base; a metal circuit, which is embedded and formed in the insulating base; a coil, which is electrically connected to the metal circuit; and an electronic element, wherein the metal circuit is coated and formed on the insulating base by means of primary injection molding; the insulating base is horizontally arranged, and is provided with a peripheral side face which is arranged on a periphery, and an upper surface; the coil is arranged on the upper surface; the base comprises an insulating frame which coats the insulating base and the metal circuit by means of secondary injection molding; and the insulating frame is provided with a frame body portion which is integrally sealed and coated on the peripheral side face of the insulating base and is horizontally arranged, and vertical portions which vertically extend from the periphery of an upper surface of the frame body portion. The technical problem of horizontally mounting the coil and the electronic element on the basis of the metal circuit having perpendicular parts on the periphery of the base is solved, and the degree of freedom in the design of a periscopic voice coil motor is thus improved.

Description

A base with a coil, a periscope voice coil motor and a manufacturing method thereof

This application claims the priority of the Chinese patent application with an application date of April 7, 2021 and an application number of 202110372672.5, the entire contents of which are incorporated into this application by reference.

technical field

The invention relates to the technical field of a base with a coil, a periscope voice coil motor and a manufacturing method thereof, and in particular to a base for use in the field of electronic equipment, a periscope voice coil motor and a manufacturing method thereof.

Background technique

Existing bases and voice coil motors with coils usually include a base, a metal circuit injected into the base, an electronic component welded to the metal circuit, a coil formed by winding or mounted and assembled, and a coil connected to the coil. Actuated magnetic structures and other drive components. Generally, assemblers of voice coil motors need to electrically assemble the above basic components. In order to match the layout and installation requirements of various components, the layout of each component is usually difficult, and some additional assembly space needs to be reserved. For switching components, such as flexible printed circuit boards (FPC, Flexible Printed circuit) that need to integrate ICs or coils, at least part of the installation space needs to be reserved, and the assembly space for integrated ICs or coils and FPCs needs to be designed. Existing bases with coils and periscope voice coil motors usually use the FPC surface assembly process to achieve line connection. However, due to the high requirements of the assembly process on the accuracy of the shape and position tolerance of the component itself, the repeatability of positioning accuracy, etc., the overall defect rate of the assembly is currently high, and the mass production is not good.

For example, for a voice coil motor, a flexible printed circuit (FPC, Flexible Printed circuit) surface assembly process is usually used, so that the coil is arranged on the flexible circuit board and welded with the metal circuit in the base to achieve circuit connection. For example, the utility model patent with the publication number CN209134273U discloses a connection structure applied in a voice coil motor, including an injection molded part and a flexible circuit board (FPC). The injection molded part has a plurality of side walls that are connected in sequence to form the hollow cavity. One of the side walls is provided with a positioning cavity that penetrates through the hollow cavity. The side walls of the cavity are attached, and the FPC is mounted or wound with integrated ICs and coils, so as to achieve the effect of circuit conduction.

Another example is the invention patent application with publication number CN108989511A, a base with electronic components and a voice coil motor. On the surface, it needs to be mounted by SMT (Surface Mount Technology) in the future, and because the side of the surface to be mounted is open, the coil winding or mounting is difficult, and the position design requirements for the coil are very high. Therefore, it is difficult to automate the integrated electronic components (IC, Integrated Circuit) or coils on the vertical plane, requiring tedious manual operations, low efficiency, and poor quality stability. And when ICs or coils are integrated on a horizontal base, they can only be assembled one by one, and the automation efficiency of assembly is very low. And now the SMT placement equipment on the market all deal with the base separately, and there is no batch processing. When installing coils or electronic components on a horizontal plane in a periscope voice coil motor, it is difficult to assemble the coils or electronic components in the space inside the four columns on the premise that there are four columns provided on the peripheral side of the insulating base. , and automation is difficult to achieve.

The above problems mainly occur when the existing voice coil motor manufacturers produce voice coil motors, they need to purchase parts and then position and assemble components such as flexible circuit boards/shrapnel. The positioning, processing and assembly procedures are complicated and the operating space is limited. , it is easy to cause defective parts, and then cause the overall cost to be too high. At the same time, since these purchased parts are reproduced without considering their combination and ignoring the problem of combination space design, it is necessary to reserve some installation positions when designing the voice coil motor, resulting in a waste of space and making the product The structure cannot be compact and miniaturized. And because the original coil generally needs to be integrated with the metal circuit in the base by being integrated on an independent FPC, the FPC itself is very thin and fragile, and the cost is very high. It is very difficult to install the coil, which is easy to cause defects, and the number of coils that can be wound and the thickness of the coil will be affected by the thickness of the FPC, which in turn affects the size of the coil energized current, increasing the loss of the circuit. In addition, the coil is wound or mounted on an independent FPC. Since the FPC is very soft, when the electronic device falls, the voice coil motor with the coil fixed on the FPC is easy to cause overall failure due to its weak integration strength.

Therefore, it is necessary to provide a new base with a coil, a voice coil motor and a manufacturing method thereof to overcome the above-mentioned defects.

SUMMARY OF THE INVENTION

An object of the present invention is to provide a base having a coil, a periscope voice coil motor, and a manufacturing method thereof.

The object of the present invention is achieved through the following technical solution: a base with a coil, comprising: a rectangular insulating base, a metal circuit embedded in the insulating base, and a coil electrically connected to the metal circuit and electronic components, the insulating base is overmolded on the metal circuit by one injection molding, the insulating base is arranged horizontally and has an outer peripheral side and an upper surface arranged on the outer periphery, and the coil is arranged on the insulating The upper surface of the base, the electronic components are mounted on the upper surface of the insulating base by surface mounting technology, and the base includes the insulating base and the metal covered by the secondary injection molding An insulating frame of a circuit, the insulating frame is provided with a frame body part that is integrally enclosed and covered on the outer peripheral side of the insulating base and is arranged horizontally, and a vertical frame body extending vertically from the periphery of the upper surface of the frame body part. department.

Further, the metal circuit includes a horizontal part embedded in the insulating base, a vertical part embedded in the vertical part, and a bending part connected between the horizontal part and the vertical part, The bending portion is located outside the insulating base and is embedded in the frame portion.

Further, the metal circuit includes a plurality of branches, the plurality of the branches include at least two column branches, each of the column branches includes the horizontal part and the vertical part, and the two column branches The vertical parts are distributed on the outer circumference of the outer peripheral side surface of the insulating base, and the electronic component and the coil are arranged between the vertical parts of at least two of the upright branches.

Further, a plurality of the branches of the metal circuit include a horizontal branch embedded in the insulating base and the column branch located on the peripheral side of the horizontal branch, and one end of the column branch is provided with A column pin exposed on the top surface of the vertical portion, the other end of the column branch is arranged to form a column solder foot welded to the electronic component, and the column pin of the column branch is connected to the A column connecting part is formed between the column welding legs and is located on the peripheral side of the horizontal branch and constitutes a vertical column part of the vertical part, and the vertical column part is located outside the insulating base and is embedded in the the vertical part.

Further, one end of several of the horizontal branches is provided with pins arranged at intervals, and the other ends of several of the horizontal branches are provided with solder pins arranged in parallel, and the pins and the solder pins are formed between the pins. a connecting part; the solder pins and the upright solder pins are exposed on the upper surface of the insulating base, the pins are exposed on the upper surface of the frame part, and the upright pins are exposed on the vertical the top surface of the straight portion.

Further, the insulating frame is provided with a thinned portion on one side of the insulating base, and the pins are embedded in the thinned portion of the insulating frame and exposed on the surface of the thinned portion.

Further, the branch circuit is provided with welding positions exposed on the upper surface of the insulating base and arranged at intervals, the coil is provided with two welding pins, and the two welding pins are respectively welded to the welding positions. bit.

Further, the base is provided with at least two coils, each of the coils is welded corresponding to the welding position in the branch circuit, and one end side of each of the branch circuit and each of the coils is injection-molded on the inside the insulating base.

Further, the welding positions corresponding to the welding of the two welding pins of the same coil are formed at different positions in the same branch, and the insulating base is provided with welding grooves to expose the corresponding welding bit.

Further, at least two of the coils are respectively located inside two adjacent sides of the insulating base, and the longitudinal directions of the two coils are perpendicular to each other.

Further, the metal circuits are double-layer metal circuits arranged in a first direction, which are an upper-layer metal circuit and a lower-layer metal circuit, respectively, and the column branches are at least both the upper-layer metal circuit and the lower-layer metal circuit one.

Further, the coil is fixed to the insulating base by means of wire winding, the insulating base is provided with a pair of winding posts arranged at intervals, and the coil wire is fixed to the winding posts.

Further, the insulating base is provided with a pair of positioning posts, the coil has a pair of lead ends, the lead ends are fixed on the positioning posts, and the welding slot is located between the winding posts and the positioning posts.

Further, the electronic component is located in the area where the coil is wound or is located outside the area where the coil is wound.

The object of the present invention is achieved by the following technical solution 2: a periscope voice coil motor, comprising the above-mentioned base with a coil.

The object of the present invention is achieved through the following technical solution three: a manufacturing method for manufacturing the above-mentioned base with a coil, comprising the following steps:

The first step is to stamp and form several metal circuits connected in sequence on the material strip;

In the second step, an injection molding is performed on the metal circuit to form a rectangular insulating base, the insulating base is arranged horizontally and has an outer peripheral side surface and an upper surface arranged on the outer periphery;

The third step is to electrically connect a horizontally arranged coil on the upper surface of the insulating base, and mount electronic components on the upper surface of the insulating base through surface mounting technology;

In the fourth step, secondary injection molding is performed on the periphery of the metal circuit and the insulating base to form an insulating frame, the metal circuit is embedded in the insulating base and the insulating frame at the same time, and the insulating frame is There is a frame body part that is integrally enclosed and covered on the outer peripheral side of the insulating base and is arranged horizontally, and a vertical part that extends vertically from the periphery of the upper surface of the frame body part;

The fifth step is to cut the material strips connecting a plurality of the metal circuits to form a plurality of independent and complete bases.

Further, in the first step, the metal circuit includes a horizontal part located on the same plane and a vertical part located on the outer peripheral side of the horizontal part; in the second step, the insulating base is injection-molded on the horizontal part, so The vertical part is located outside the insulating base; a sixth step is added between the third step and the fourth step, and the horizontal part and the vertical part of the metal circuit located outside the insulating base are bent A part of the connection is formed to form a bending part, and the bending part is injection-molded in the frame part.

Further, in the first step, the metal circuit includes several horizontal branches and a column branch located on the outer periphery of the horizontal branch, one end of the several horizontal branches is arranged in parallel and at intervals to form pins, the The end of the other end of the horizontal branch is arranged to form a welding leg, a connection portion is formed between the lead and the welding leg, and one end of the column branch is arranged at intervals to form a rectangular column lead. The other end of the column branch is arranged to form a column welding leg located on the same plane as the welding leg; in the sixth step, the welding leg and the column welding leg are exposed on the upper surface of the insulating base, The pins are exposed on the upper surface of the frame portion, and the upright pins are exposed on the top surface of the vertical portion.

Further, in the third step, a downwardly concave welding groove is provided on the upper surface of the insulating base at a position corresponding to the welding leg, and the welding leg is disposed in the welding groove.

Further, in the process of forming the insulating base in the second step, a pair of winding posts and a pair of positioning posts are also formed on the insulating base. In the third step, the coil is wound around the winding. A pair of lead ends of the coil is fixed through the positioning post.

The object of the present invention is achieved by the following technical solution 4: a manufacturing method of a periscope voice coil motor, comprising the steps of the above-mentioned manufacturing method of a base having a coil.

In the base with coils in the present invention, an insulating base and an insulating frame located on the peripheral side of the insulating base are formed by injection molding twice, and a vertical portion perpendicular to the insulating base is formed around the insulating frame. The circuit includes a horizontal part that is injection-molded on the insulating base and a vertical part that is injection-molded on the insulating frame. At the same time, the coils and electronic components are positioned when the insulating base is injection-molded at one time, and then the vertical part that is originally located on the horizontal plane is bent. Folded to be perpendicular to the horizontal part, there is no need to carry out limited horizontal mounting of coils and electronic products on the basis of the predetermined vertical part of the metal circuit arranged on the peripheral side of the base, and there is no need to mount the flexible circuit board. The design freedom of the periscope voice coil motor is improved, the assembly cost is reduced, and the yield rate is improved. And because the coil and electronic components are integrated on the insulating base, the structure of the product is more compact and miniaturized. When the electronic device is dropped, it will not fail because the winding post attached to the coil is too soft. And since the base is an injection-molded insulating base on the same plane, and the coils and electronic components are mounted and then bent, multiple bases can be manufactured on the same tape, which can realize mass production and automation.

Description of drawings

FIG. 1 is a schematic perspective view of a periscope voice coil motor of the present invention.

FIG. 2 is a three-dimensional schematic diagram of a base with a patch-type flexible circuit coil of the present invention.

FIG. 3 is a perspective view of a base with a wound coil according to the present invention.

FIG. 4 is an exploded perspective view of the base shown in FIG. 3 .

FIG. 5 is a further exploded perspective view of FIG. 4 .

FIG. 6 is a partial enlarged view of the coil and the insulating base in FIG. 5 .

FIG. 7 is a three-dimensional schematic diagram of the metal circuit in the base before being bent.

FIG. 8 is a three-dimensional schematic view of the metal circuit in FIG. 7 by one-shot injection molding of the insulating base.

FIG. 9 is a three-dimensional schematic diagram of an upper-layer metal circuit and a lower-layer metal circuit of the metal circuit.

Description of main component symbols

Please refer to the following reference numerals, periscope voice coil motor 1000, photosensitive component 1001, optical lens 1002, reflective element 1003, base 100, metal circuit 1, pin 1a, solder pin 1b, connection portion 1c, upper metal Circuit 1d, lower metal circuit 1e, bent portion 1f, soldering position 1g, horizontal branch 10, first branch 11, first lead 11a, first solder pin 11b, first connection portion 11c, first bend part 11f, second branch 12, second lead 12a, second solder leg 12b, second connection part 12c, third branch 13, third lead 13a, third solder leg 13b, third connection part 13c , the fourth branch 14, the fourth pin 14a, the fourth solder pin 14b, the fourth connection part 14c, the fifth branch 15, the fifth pin 15a, the fifth solder pin 15b, the fifth connection part 15c, the first The fifth bent portion 15f, the sixth branch 16, the sixth lead 16a, the sixth welding leg 16b, the sixth connecting portion 16c, the seventh branch 17, the seventh lead 17a, the seventh welding leg 17b, the seventh The connecting part 17c, the eighth branch 18, the eighth pin 18a, the eighth welding leg 18b, the eighth connecting part 18c, the eighth bending part 18f, the column branch 19, the column pin 19a, the column welding leg 19b, Column connecting portion 19c, vertical column portion 19d, first column branch 191, first column pin 191a, first column solder leg 191b, first column connecting portion 191c, first vertical column portion 191d, second column Branch 192, second column pin 192a, second column connecting portion 192c, second vertical column portion 192d, third column branch 193, third column pin 193a, third column welding leg 193b, third column Connection part 193c, third vertical column part 193d, bending part 194, insulating base 2, upper surface 20, first side 21, second side 22, third side 23, fourth side 24, welding Groove 25, winding post 26, positioning post 27, welding slot 28, outer peripheral side 29, insulating frame 3, frame body 30, vertical part 31, first vertical part 311, second vertical part 312, Three vertical parts 313 , fourth vertical part 314 , top surface 32 , thinned part 33 , coil 4 , flexible circuit coil 4 ′, soldering pin 41 , lead terminal 42 , electronic component 5 , first plane P1 .

The following specific embodiments will further illustrate the present invention in conjunction with the above drawings.

Detailed ways

In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the orientations or positional relationships shown in the accompanying drawings, only for the purpose of It is for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the term "connection" should be understood in a broad sense. For those of ordinary skill in the art, the above-mentioned term can be understood in the present invention under specific circumstances. specific meaning.

The periscope voice coil motor in the prior art requires subsequent integration with the coil. Generally, an additional flexible circuit board (FPC) that is mounted or integrated with the coil is required, and then the flexible circuit board is positioned relative to the base again for assembly. Integral voice coil motor. The coil-integrated base of the present invention does not need to additionally provide a flexible circuit board for switching and positioning, and adopts the simultaneous winding integration when the injection base is formed, which saves the assembly and component installation space of subsequent assemblers. Moreover, in the prior art, if it is necessary to subsequently perform coil winding or mounting on the upper surface of the formed base, it is limited by the limited winding space or operation space inside the base, which is not conducive to the assembly of the base and the coil. integrated. Specifically, if the integrated coil and electronic components are in the horizontal plane of the base, the coils or electronic components need to be wound or mounted in the insulating base in the vertical part under the premise that there are vertical parts around the base, The operation space is limited, the positioning integration is very difficult, and the processing integration is limited to a single base and a single coil or electronic component, and the integration efficiency is low, which is not conducive to the cost reduction and efficiency improvement of automated mass production.

In the present invention, the insulating base 2 is formed by one-time injection molding on the horizontal plane where the metal circuit 1 is located, and then the electronic component 5 and the coil 4 are electrically assembled or mounted on the insulating base 2 , and then the insulating base 2 is placed outside the insulating base 2 . The vertical portion (vertical column portion 19d ) of the metal circuit 1 is bent, and over-injection molding is performed on the outer peripheral side surface 29 of the insulating base 2 to form the insulating frame 3, and the vertical portion (the vertical column portion 19d ) is embedded It is formed in the insulating frame 3 . The electronic component 5 and the coil 4 in the present invention are electrically welded to the electronic component 5, the coil 4 and the metal circuit 1 before the vertical part of the insulating frame 3 is formed, and there is no need to use a flexible circuit board (FPC) and the coil to complete the The reassembly with the base after injection molding reduces the assembly cost and improves the yield rate; at the same time, it solves the technical problem that the wound hollow coil 4 and the electronic component 5 are difficult to mount under the premise of the existence of the vertical part 31. (Electrical mounting is only suitable for the vertical opening of the mounting surface, which is suitable for mounting. However, if there are two mounting surfaces that are parallel to each other in the vertical direction, it is unfavorable to use the mounting method. It is forced to use manual method only), which helps to improve the degree of freedom in the design of the internal space of the periscope voice coil motor 1000, and the internal structure of the periscope voice coil motor product is also more compact and miniaturized. Hereinafter, the base 100 of the present invention, the periscope voice coil motor 1000 having the base 100 and the manufacturing method thereof will be described with reference to FIGS. 1 to 9 .

In the present invention, the base 100 and the periscope voice coil motor 1000 can be applied to a periscope camera module in a mobile phone. Due to the limitation of the thickness of the mobile phone, the conventional vertical placement (that is, facing the outside on the surface of the mobile phone) is adopted. Due to the small focal length of the mobile phone camera, the optical zoom capability is limited. In the present invention, different from the vertical arrangement of the traditional lens, the The periscope voice coil motor 1000 is placed laterally in the mobile phone, as shown in FIG. 1 . A periscope voice coil motor 1000 includes a photosensitive element 1001, an optical lens 1002, a magnetic element (not shown) fixed on the optical lens 1002, a reflective element 1003, and a reflection element 1003 integrated with the magnetic element. The base 100 of the active coil 4 and the lens holder (not shown) whose movement is controlled by the metal circuit 1 , the coil 4 and the magnetic element. The optical lens 1002 is located between the photosensitive component 1001 and the reflective element 1003, so that the ambient light is first reflected by the reflective element 1003 to change the propagation direction of the ambient light (the light entering the vertical direction of the mobile phone camera changes light in the lateral direction), and after passing through the optical lens 1002, it is received by the photosensitive component 1001 to capture an image. The reflecting element 1003 may be a prism or a lens, which is not specifically limited. After the metal circuit 1 is powered on, it can interact with the magnetic element to drive the lens holder to move, so as to assist the optical lens 1002 in focusing. Hereinafter, a detailed description will be given.

In the voice coil motor in the prior art, the side of the base 100 carrying the optical lens 1002 is provided with an air-core coil wound on a flexible circuit board, and then interacts with a magnetic element to adjust the optical lens. Make adjustments. In the present invention, the coil 4 is integrated on the base 100 . At the same time, the magnetic element in the present invention can interact with the coil 4 to realize the movement in the horizontal plane (X-axis or Y-axis direction) or the vertical direction (Z-axis direction), which is not limited here. The form of the coil can be a wire-wound hollow coil 4 or a patch-type flexible circuit coil (FP Coil) 4', etc. The specific coil form is not limited in the present invention, but in the best mode of the present invention, a wound coil is used. Wire or SMD flexible circuit coils. As shown in FIG. 2 , the patch-type flexible circuit coil 4 ′ is shown, and as shown in FIG. 3 , the wire-wound circuit coil 4 is shown.

Referring to FIGS. 1 to 9 , the base 100 includes a rectangular insulating base 2 , a metal circuit 1 embedded in the insulating base 2 , an electronic component 5 and a coil electrically connected to the metal circuit 1 . 4 (flexible circuit coil 4 ′) and the insulating frame 3 embedded and molded outside the insulating base 2 . The insulating base 2 is arranged horizontally and has an outer peripheral side surface 29 and an upper surface 20 arranged on the outer periphery. The insulating frame 3 is located outside the outer peripheral side surface 29 of the insulating base 2 . The insulating base 2 is located on a first plane P1. The insulating base 2 is overmolded on the metal circuit 1 by one-shot injection molding, the coil 4 is disposed on the upper surface 20 of the insulating base 2 , and the base 100 includes a secondary injection molding. The insulating frame 3 of the insulating base 2 and the metal circuit 1 is covered by the insulating frame 3, and the insulating frame 3 is provided with a frame portion 30 and a horizontally arranged frame portion 30 that is integrally enclosed and wrapped on the outer peripheral side surface 29 of the insulating base 2. The vertical portion 31 extends vertically from the periphery of the upper surface of the frame portion 30 . The insulating base 2 and the insulating frame 3 are integrally connected by means of secondary injection molding. The metal circuit 1 is embedded in the insulating base 2 by one injection molding. In the present invention, the first plane P1 is the horizontal plane.

Please refer to FIG. 5 , the insulating base 2 is in a rectangular shape, having oppositely disposed first side 21 and third side 23 and a second side connecting the first side 21 and the third side 23 side 22 and fourth side 24 . The insulating base 2 has the outer peripheral side surface 29 disposed on the outer periphery thereof and a surface exposed to the outside of the insulating frame 3 . In the present invention, the outer peripheral side 29 is the side corresponding to the first side 21 , the second side 22 , the third side 23 and the fourth side 24 . In other embodiments, the outer peripheral side 29 is It is the side that is in contact with the insulating frame 3 . In the present invention, the surface is the upper surface 20 of the insulating base 2 , and in other embodiments, the surface can also be another surface exposed to the insulating frame 3 . The coil 4 is positioned on the insulating base 2 and fixed to the insulating base 2 by means of winding. In the present invention, the base 100 is provided with two coils 4 for interacting with the magnetic element to realize automatic focusing, and the two coils 4 are respectively close to the first side 21 and the The second side 22 is provided, and the longitudinal directions of the two coils 4 are perpendicular to each other. The insulating base 2 includes a pair of winding posts 26 spaced apart along the extending direction of the first side 21 and the second side 22 , a pair of positioning posts 27 located inside the two winding posts 26 , and A welding slot 28 is located between each winding post 26 and the corresponding positioning post 27 on the same side. The insulating base 2 is also provided with a number of soldering grooves 25 for exposing the soldering feet 1b of the metal circuit 1 so as to realize soldering with the electronic components 5 . In the present invention, the base 100 has three of the electronic components 5 .

The insulating frame 3 is formed on the insulating base 2 by secondary injection molding so as to be integrally connected with the insulating base 2 . The insulating frame 3 includes the frame body portion 30 disposed horizontally, a vertical portion 31 disposed perpendicular to the first plane P1 and extending vertically from the periphery of the upper surface of the frame body portion 30 , and a vertical portion 31 located in the vertical direction. The top surface 32 of the surface of the straight portion 31 . The insulating frame 3 is integrally closed and wrapped, and has a thinned portion 33 . The thinned portion 33 is formed on one side of the frame portion 30 . In the present invention, the thinned portion 33 is disposed corresponding to the first side edge 21 . The pins 1 a described below are exposed on the surface of the thinned portion 33 . Since the insulating frame 3 is integrally closed and wrapped, the structural strength of the base 100 after injection molding is better. In addition, after the thinned portion 33 is thinned, it is easier to be installed on an external circuit board (not shown), and the thickness of the thinned portion 33 will not be increased after installation. The vertical portion 31 includes a first vertical portion 311 located at the intersection of the first side 21 and the second side 22 , the first side 21 and the fourth side 24 The second vertical portion 312 disposed at the intersection, the third vertical portion 313 disposed at the intersection of the fourth side 24 and the third side 23, and the second side 22 and the first The fourth vertical portion 314 is provided at the intersection of the three side edges 23 .

The metal circuit 1 is a double-layered metal circuit along a first direction, which is an upper-layer metal circuit 1d and a lower-layer metal circuit 1e respectively, please refer to FIG. 9 . In the present invention, the first direction is a vertical direction perpendicular to the first plane P1. In other embodiments, other directions are also possible. The metal circuit 1 includes a horizontal part embedded in the insulating base 2 and a vertical part embedded in the insulating frame 3, and the horizontal part and the vertical part are bent to form a fold. The bent portion 194 is accommodated in the insulating frame 3 . The vertical portion of the metal circuit 1 is embedded in the insulating frame 3 .

The metal circuit 1 includes a plurality of branches, and the plurality of the branches include a plurality of horizontal branches 10 located on the first plane P1 and at least two pillar supports located on the peripheral side of the plurality of horizontal branches 10 Road 19. One ends of the plurality of horizontal branches 10 are arranged in parallel and spaced apart to form pins 1a exposed to the outside of the insulating base 2 , and the other ends of the horizontal branches 10 are arranged to be electrically connected to the electronic components 5 . A connecting portion 1c is formed between the soldering pin 1b of each of the horizontal branches 10 and the pin 1a. The horizontal branch 10 includes a first branch 11, a second branch 12, a third branch 13, a fourth branch 14, a fifth branch 15, a sixth branch 16, The seventh branch 17 and the eighth branch 18. The first branch 11 , the fifth branch 15 and the eighth branch 18 constitute the upper metal circuit 1d located on the upper layer, the second branch 12 , the third branch 13 and the fourth branch 14 , the sixth branch 16 , the seventh branch 17 and the column branch 19 constitute the lower metal circuit 1e located in the lower layer. Bending portions 1f are provided between the soldering legs 1b of the upper metal circuit 1d and the connecting portion 1c, so that the soldering legs 1b of the upper metal circuit 1d and the soldering legs 1b of the lower metal circuit 1e are located at the same position. The plane can be soldered to the same electronic component 5 . In the present invention, the horizontal branch 10 forms part of the horizontal portion of the metal circuit 1 .

In the present invention, the base 100 has three of the column branches 19 . Each column branch 19 includes the horizontal part and the vertical part, the vertical part of the column branch 19 is distributed on the outer circumference of one side surface of the insulating base 2, and the electronic component 5 is connected to the The coil 4 is arranged in the horizontal portion between the vertical portions of at least two of the upright legs 19 . Specifically, one end of the column branch 19 is provided with a column pin 19a exposed to the top surface 32 of the insulating frame 3, and the other end is arranged to form a column solder pin 19b welded to the electronic component 5, A column connecting portion 19c with the vertical column portion 19d is formed between the column lead 19a and the column welding leg 19b on the peripheral side of the horizontal branch 10 . The vertical column portion 19d is perpendicular to the first plane P1 and is located outside the insulating base 2 and inside the insulating frame 3. The vertical column portion 19d is connected to the first plane P1. The connecting portion of the column connecting portion 19c is bent to form the bent portion 194 . The column branch 19 includes a first column branch 191 located at the intersection of the first side 21 and the second side 22 , and a second column branch 192 located at the fourth side 24 . and a third column branch 193 disposed at the intersection of the second side 22 and the third side 23 . At this time, the vertical column portion 19d is located outside the insulating base 2 and inside the vertical portion 31 of the insulating frame 3 .

Specifically, the horizontal part of the metal circuit 1 is constituted by the column welding legs 19b of the horizontal branch 10 and the column branch 19 and a part of the column connecting portion 19c located in the first plane P1 , the vertical part of the metal circuit 1 is constituted by the vertical column portion 19d of the column branch 19 and the column pin 19a. The horizontal portion is embedded in the insulating base 2 , the vertical portion is embedded in the insulating frame 3 , and the bent portion 194 between the vertical portion and the horizontal portion is located on the insulating base 2 Outer and embedded in the insulating frame 3 .

The column branch 19 is included in either the upper metal circuit 1d and the lower metal circuit 1e. In the present invention, the column branch 19 is a part of the lower metal circuit 1e. In other embodiments , the column branch 19 may also be a part of the upper metal circuit 1d, and may also be formed by a part of the upper metal circuit 1d and the lower metal circuit 1e.

The first branch 11 includes two first pins 11 a located on the first side 21 and the fourth side 24 of the insulating base 2 , and a first solder joint for soldering with the electronic component 5 . The pin 11b, the first connection portion 11c connecting the first solder pin 11b and the first pin 11a, and the first bend located inside the first solder pin 11b and connected to the first connection portion 11c Section 11f.

The second branch 12 includes a second pin 12a located on the first side 21, a second solder pin 12b soldered to the same electronic component 5 as the first solder pin 11b and located on the same plane therewith, and The second connecting portion 12c connecting the second pin 12a and the second solder leg 12b. The first solder pins 11b and the second solder pins 12b are located in two different rows but are soldered to the same electronic component 5 together.

The third branch 13 includes a third pin 13a located on the first side 21, a third solder pin 13b soldered to the same electronic component 5 as the first solder pin 11b and located on the same plane therewith, and The third connecting portion 13c is connected between the third pin 13a and the third soldering pin 13b. The third welding leg 13b is located in the same row on the right side of the second welding leg 12b and is opposite to the first welding leg 11b.

The fourth branch 14 includes a fourth pin 14a located on the first side 21, a fourth solder pin 14b soldered to the same electronic component 5 as the first solder pin 11b and located on the same plane therewith, and The fourth connection portion 14c is connected between the fourth pin 14a and the fourth solder pin 14b. The fourth welding leg 14b is located in the same row to the left of the first welding leg 11b and is opposite to the second welding leg 12b.

One of the electronic components 5 has four pins, and is welded with the first solder pins 11b, the second solder pins 12b, the third solder pins 13b and the fourth solder pins 14b. The first bending portion 11f makes the first solder leg 11b, the second solder leg 12b, the third solder leg 13b and the fourth solder leg 14b lie on the same plane.

The fifth branch 15 includes two fifth pins 15 a located on the first side 21 and the fourth side 24 of the insulating base 2 , and the first solder pins 11 b are soldered in different places. The fifth solder pin 15b of the electronic component 5, the fifth connection portion 15c connected between the fifth solder pin 15b and the fifth pin 15a, and the inner side of the fifth solder pin 15b connected to the The fifth bending portion 15f of the fifth connecting portion 15c is described.

The sixth branch 16 includes two sixth pins 16 a located on the first side 21 and the third side 23 of the insulating base 2 , and the fifth solder pins 15 b are soldered on the same side. The sixth soldering pin 16b of the electronic component 5 and the sixth connecting portion 16c connected between the sixth soldering pin 16b and the sixth lead 16a. The sixth welding leg 16b is disposed opposite to the fifth welding leg 15b.

The seventh branch 17 includes a seventh pin 17a located on the first side 21 of the insulating base 2, and a seventh pin 17a located on the fifth solder pin 15b soldered to the same electronic component 5 as the fifth solder pin 15b. The seventh solder pin 17b on the right side of the pin 15b, and another seventh solder pin soldered to another electronic component 5 that is different from the electronic component 5 soldered to the first solder pin 11b and the fifth solder pin 15b 17b and a seventh connection portion 17c connecting the seventh solder pin 17b and the seventh pin 17a.

The eighth branch 18 includes one of the first sides 21 , two of the second sides 22 , one of the third sides 23 , and five of the fourth sides 24 located on the insulating base 2 . The eighth pins 18a, the eighth solder pins 18b located opposite the seventh solder pins 17b are soldered to the same electronic component 5 as the fifth solder pins 15b, and the other seventh solder pins 17b are soldered to Another eighth solder pin 18b of the same electronic component 5, an eighth connection portion 18c connecting the eighth solder pin 18b and the eighth pin 18a, and the inner side of the eighth solder pin 18b are connected to the eighth solder pin 18b. The eighth bent portion 18f of the eighth connection portion 18c. The seventh branch 17 has two of the seventh solder legs 17b, and the eighth branch 18 has two of the eighth solder legs 18b. The eighth branch 18 has two eighth bent portions 18f so that the eighth solder leg 18b is located on the same plane as the fifth solder leg 15b and the other seventh solder leg 17b for welding in the same electronic component 5. The fifth bending portion 15f is also arranged so that the fifth soldering leg 15b and other soldering legs soldered to the same electronic component 5 are located on the same plane.

The electronic component 5 soldered to the fifth soldering pin 15b has six pins, and the soldering pins 1b are respectively the fifth soldering pin 15b, the sixth soldering pin 16b, the seventh soldering pin 17b and the eighth soldering pin 18b. , the other two welding legs 1b are respectively the first column welding leg 191b of the first column branch 191 and the third column welding leg 191b of the third column branch 193 disposed opposite to the first column welding leg 191b 193b.

The third electronic component 5 has two leads, which are respectively welded with the other seventh soldering pin 17b and the other eighth soldering pin 18b. A welding groove 25 is provided at the insulating base 2 at the position where each electronic component 5 is to be welded with the solder pins.

In this embodiment, there are three electronic components 5 . The number of electronic components 5 affects the number and arrangement of the horizontal branches 10 and the column branches 19 . The first lead 11a, the second lead 12a, the third lead 13a, the fourth lead 14a, the fifth lead 15a, the sixth lead 16a, the seventh lead 17a, and the eighth lead 18a are all Called pin 1a.

The first welding leg 11b, the second welding leg 12b, the third welding leg 13b, the fourth welding leg 14b, the fifth welding leg 15b, the sixth welding leg 16b, the seventh welding leg 17b and the eighth welding leg 18b are all It is called solder foot 1b.

The first connecting portion 11c, the second connecting portion 12c, the third connecting portion 13c, the fourth connecting portion 14c, the fifth connecting portion 15c, the sixth connecting portion 16c, the seventh connecting portion 17c and the eighth connecting portion 18c are all It is called the connection part 1c.

The first bent portion 11f, the fifth bent portion 15f, and the eighth bent portion 18f are all referred to as the bent portion 1f.

The first column branch 191 includes a first vertical column portion 191 d embedded in the first vertical portion 311 , a first vertical column portion 191 d extending upward from the end of the first vertical column portion 191 d and exposed to the first vertical column portion 191 d. The first column lead 191a of the top surface 32 of a vertical portion 311, the first column lead 191b welded to the same electronic component 5 as the fifth lead 15b, and connected to the first column The first column connecting portion 191c between the pins 191a and the first column soldering legs 191b. The first vertical column portion 191d is provided with a bending portion 194 perpendicular to the first plane P1. The first vertical column portion 191 d is formed by vertically bending the first column connecting portion 191 c located in the first plane P1 , and has the bending portion 194 . The bent portion 194 is located outside the insulating base 2 and inside the insulating frame 3 . In the present invention, the first column connecting portion 191c is located at least in one of the insulating base 2 and the insulating frame 3. In other embodiments, only the vertical column portion 19d and the folding The bent portion 194 may be located outside the insulating base 2 and inside the insulating frame 3 , and the column connecting portion 19c may also be located inside the insulating base 2 and outside the insulating frame 3 , which is not limited here. In the present invention, the first column connecting portion 191c is located outside the insulating base 2 and inside the insulating frame 3 .

The second column branch 192 includes two second vertical column portions 192d fixed in the second vertical portion 312 and the third vertical portion 313, and two second vertical column portions 192d from the second vertical column portion 192d. The two second upright pins 192a of the top surfaces 32 of the second upright portion 312 and the third upright portion 313 whose ends extend upwardly and are connected to the two second upright upright portions 192d The second column connecting portion 192c between them. At this time, the second column connecting portion 192c is located outside the insulating base 2 and inside the insulating frame 3 . The second vertical column portion 192d is formed by being vertically bent from the second column connecting portion 192c located in the first plane P1 and has the bending portion 194 . The bent portion 194 is located outside the insulating base 2 and inside the insulating frame 3 .

The third upright branch 193 includes a third upright upright portion 193d fixed in the fourth upright portion 314, and a third upright upright portion 193d extending upward from the end of the third upright upright portion 193d and exposed to the fourth upright portion. The third upright pin 193a of the top surface 32 of the straight portion 314, the third upright pin 193b soldered to the same electronic component 5 as the fifth solder pin 15b, and connected to the third upright pin 193a and the third column connecting portion 193c between the third column welding legs 193b. The third vertical column portion 193d is provided with a bending portion 194 perpendicular to the first plane P1. The third vertical column portion 193 d is formed by being vertically bent from the third column connecting portion 193 c located in the first plane P1 , and has the bending portion 194 . The bent portion 194 is located outside the insulating base 2 and inside the insulating frame 3 . In the present invention, the third column connecting portion 193c is located outside the insulating base 2 and inside the insulating frame 3 .

The first vertical column portion 191d, the second vertical column portion 192d and the third vertical column portion 193d are all referred to as the vertical column portion 19d.

The first upright pin 191a, the second upright pin 192a and the third upright pin 193a are all called upright pins 19a.

The first column welding leg 191b and the third column welding leg 193b are both referred to as the column welding leg 19b.

The first column connecting portion 191c, the second column connecting portion 192c and the third column connecting portion 193c are all referred to as the column connecting portion 19c.

The first side 21 and the second side 22 of the insulating base 2 are provided with two welding grooves 28 at intervals to expose two spaced welding positions 1g on the branch, and the coil 4 is provided with Two welding pins 41 , the two welding pins 41 are respectively corresponding to the two welding grooves 28 of the insulating base 2 to be welded to the branch circuit. The welding positions 1g can be arranged in the same branch or in different branches. In the present invention, a pair of the welding positions 1g are arranged in different branches, and the other pair of the welding positions 1g are arranged in the same branch. . Specifically, the welding position 1g corresponding to the coil 4 located on the first side 21 is located on the second connection portion 12c of the second branch 12 and the sixth connection portion 16c of the sixth branch 16 . The welding position 1 g of the coil 4 corresponding to the second side 22 is located on the first column connecting portion 191 c of the first column branch 191 . In other embodiments, the welding positions 1g corresponding to the two welding pins 41 may also protrude out of the insulating base 2 and be directly exposed on the surface of the insulating base 2 , that is, the welding grooves 28 do not need to be provided.

In the present invention, the manner in which the coil 4 is held on the insulating base 2 can be selected to realize the winding of the coil 4 on the insulating base 2 or to use an SMT (Surface Mount Technology) method to mount a patch-type coil. If the first method is selected to assemble the coil, the welding slot 28 needs to be provided with a winding column 26 and a positioning column 27 on the insulating base 2, but the number of the winding column 26 and the positioning column 27 is not limited, and can be set according to the needs of the product . If the second method is selected, the winding posts 26 and the positioning posts 27 do not need to be provided. However, in both methods, it is necessary to set a welding position 1g so that the coil 4 and the metal circuit 1 can be welded. In this embodiment, the coil 4 is fixed to the insulating base 2 by means of wire winding, and a pair of spaced winding posts 26 are provided on both the first side 21 and the second side 22 of the insulating base 2 and the positioning column 27 located under the winding column 26 , and the welding slot 28 here is arranged between the winding column 26 and the positioning column 27 . The coil 4 is wound and fixed to a pair of the winding posts 26 , and the coil 4 is further provided with a pair of lead ends 42 , and the lead ends 42 are fixed to the positioning posts 27 . Finally, the welding pin 41 inside the lead end 42 of the coil 4 is welded to the welding position 1g exposed in the welding groove 28 , and the outer part of the welding pin 41 is cut off.

One end of each of the branches and the coil 4 welded is injection-molded into the insulating base 2 . At least two of the coils 4 are located on the same insulating base 2 , and each of the coils 4 is independently positioned on the surface of the insulating base 2 .

The electronic component 5 and the coil 4 are both located on the same insulating base 2, and the electronic component 5 is located in the area where the coil 4 is wound or outside the area where the coil 4 is wound, which is not limited here. In the present invention, since there are three electronic components 5, there are those arranged in the area around which the coil 4 is wound, and there are also those arranged outside the area around which the coil 4 is wound. The electronic component 5 is mounted on the upper surface 20 of the insulating base 2 by surface mount technology (Surface Mount Technology, SMT). The surface mount technology (SMT) described here is to mount electronic components on a printed circuit board and form an electrical connection by soldering, and the surface mount technology here refers to attaching the electronic components 5 to the insulation. The upper surface 20 of the base 2 . The location of the electronic components 5 will affect the arrangement of the horizontal branch 10 and the column branch 19 .

The present invention also relates to a manufacturing method for manufacturing the base 100 with the coil 4, which specifically includes the following steps:

A plurality of connected upper-layer metal circuits 1d and a plurality of connected lower-layer metal circuits 1e are formed by stamping on the two material strips, respectively, and the upper-layer metal circuits 1d and the lower-layer metal circuits 1e are stacked up and down to form a plurality of connected metal circuits 1. The metal circuits 1 It includes a horizontal part located on the horizontal plane and a vertical part located on the outer peripheral side of the horizontal part, the horizontal plane at this time is the first plane P1, and the horizontal part of the metal circuit 1 is the horizontal branch 10 and the The upright leg 19b of the upright branch 19 and a part of the upright connecting portion 19c located in the first plane P1 are formed. The vertical part of the metal circuit 1 is the vertical portion of the upright branch 19 . The upright portion 19d and the upright pin 19a are constituted. The metal circuit 1 includes several horizontal branches 10 and a column branch 19 located on the outer periphery of the horizontal branch 10. At this time, the vertical branch 19 and the horizontal branch 10 are located on the same plane, and the several horizontal branches One end of the circuit 10 is arranged in parallel and at intervals to form a pin 1a, the other end of the branch circuit is arranged to form a solder pin 1b, and a connection portion 1c is formed between the pin 1a and the solder pin 1b, and the first The two connecting parts 12c and the sixth connecting part 16c are provided with welding positions 1g arranged at intervals; one end of the column branch 19 forms a column pin 19a located on the outer periphery of the horizontal branch 10, and the other end is arranged to form A column connecting portion 19c is formed between the column pin 19a of the column branch 19 and the column welding leg 19b, which is located on the same plane as the welding leg 1b. Another pair of the welding positions 1g is formed on the first column connecting portion 191c located on the horizontal plane.

One injection molding is performed on the horizontal portion of the metal circuit 1 to form a rectangular insulating base 2. At this time, the insulating base 2 is arranged horizontally and has an outer peripheral side 29 and an upper surface 20 arranged on the outer periphery. The vertical portion is located outside the insulating base 2, and the column connecting portion 19c is located outside the insulating base 2. The welding position 1g is exposed on the upper surface 20 of the insulating base 2, and the insulating The base 2 is provided with a welding groove 25 at the position corresponding to the welding leg 1b. At the same time, a winding post 26 and a positioning post 27 are arranged on the insulating base 2 and located between the winding post 26 and the positioning post 27. The welding groove 28 of the welding position 1g is exposed. The electronic component 5 is mounted on the upper surface 20 of the insulating base 2 by surface mount technology (SMT) in the soldering groove 25 , and is soldered and mounted with the solder pins 1b and the column solder pins 19b.

A coil 4 or a flexible circuit coil 4' mounted horizontally is wound around and positioned on the insulating base 2, the coil 4 includes two welding pins 41, and the two welding pins 41 correspond to the insulating base respectively. The welding groove 28 of 2 is provided to correspond to the welding position 1g exposed in the welding groove 28 .

Bend the connection between the horizontal part and the vertical part of the metal circuit 1 outside the insulating base 2 to form a bending part 194 and a vertical part arranged perpendicular to the horizontal part, and the vertical part is the vertical column The portion 19d and the post pin 19a are formed, thereby forming a first semi-finished product. At this time, the bent portion 194 and the vertical column portion 19d together with the column pins 19a are located outside the insulating base 2 .

Over-injection molding is performed on the first semi-finished product to form the insulating frame 3 , and then the base 100 is formed. That is, secondary injection molding is performed on the periphery of the metal circuit 1 and the insulating base 2 to form an insulating frame 3, and the metal circuit 1 is embedded and molded on the insulating base 2 and the insulating frame 3 at the same time. There is a frame portion 30 that is integrally enclosed and covered on the outer peripheral side surface 29 of the insulating base 2 and is arranged horizontally, and a vertical portion 31 that extends vertically from the upper surface of the frame portion 30 around. The insulating frame 3 covers the column connecting portion 19c and has a vertically arranged vertical portion 31 to be embedded in the vertical column portion 19d, and the column pins 19a of the vertical column portion 19d are located at the The top surface 32 of the vertical portion 31 is described. The insulating frame 3 is completely enclosed and wrapped, and has a thinned portion 33 corresponding to the first side edge 21 . The rows are arranged in parallel outside the thinned portion 33 , and an external circuit board can be more easily installed corresponding to the thinned portion 33 .

The material strips connecting several of the bases 100 and the material strips at the connection between the horizontal branches 10 and the column branches 19 in the metal circuit 1 are cut to form several independent and complete bases 100 .

A manufacturing method of a periscope voice coil motor 1000 includes the above steps of manufacturing the base 100 .

In the present invention, the insulating base 2 and the insulating frame 3 are injected into one body by two injection molding, and the coil 4 (flexible circuit coil 4') and electronic components are first electrically integrated on the insulating base 2 arranged in a rectangular shape. 5. Bend the part of the column connecting part 19c outside the insulating base 2 of the column branch 19 of the metal circuit 1 to form a vertical column part 19d (vertical part) perpendicular to the horizontal plane, and then go through the second time. The insulating frame 3 is injection-molded, the insulating frame 3 is embedded with the part of the metal circuit 1 outside the insulating base 2 and the insulating base 2 is positioned, so as to realize the formation of the periscope voice coil motor 1000 Before the vertically arranged vertical portion 31 of the base 100, the electrical integration (surface mounting or winding) of the coil 4 and the electronic component 5 is performed first, and there is no need to carry out a flexible circuit board (FPC) operated by a single base. And flexible coil mounting assembly, which reduces the assembly cost and improves the yield. At the same time, the technical problem that the coil 4 and the electronic component 5 cannot be mounted horizontally on the basis that the base 100 of the periscope voice coil motor 1000 has the vertical portion 31 is solved, which is helpful to improve the periscope voice coil. The degree of freedom in the design of the motor 1000 . And because the coil 4 and the electronic components 5 are integrated on the insulating base 2, the structure of the product is more compact and miniaturized. More importantly, since the base 100 is injection-molded with the insulating base 2 on a horizontal plane, and the metal circuit 1 is bent after the coils and electronic components are mounted, several bases 100 can be manufactured on the same tape. It can realize mass production and realize automation. Further, the insulating base 2 which is injection-molded once fixes and exposes one end of the plurality of branches, namely the welding legs 1b and the column welding legs 19b, on the upper surface 20, while the insulating frame 3 which is injection-molded by the second injection The other ends of the plurality of branches, that is, the pins 1a and the upright pins 19a are fixed and exposed on the upper surface thereof. More specifically, the pins 1a are exposed on the upper surface of the frame body 30 of the insulating frame 3. The pins 19a are exposed on the top surface 32 of the vertical portion 31 of the insulating frame 3, so that the manufacturing precision of the base 100 can be improved, and the manufacturing difficulty of injection molding can be reduced.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it can still be The technical solutions described in the foregoing embodiments are modified, or some or all of the technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

The above descriptions are only part of the embodiments of the present invention, not all of the embodiments. Any equivalent changes to the technical solutions of the present invention taken by those of ordinary skill in the art by reading the description of the present invention are covered by the claims of the present invention. .

Claims (21)

1. A base with a coil, comprising: a rectangular insulating base (2), a metal circuit (1) embedded and formed on the insulating base (2), and a coil electrically connected to the metal circuit (1) (4) and the electronic component (5), characterized in that: the insulating base (2) is overmolded on the metal circuit (1) by one-shot injection molding, and the insulating base (2) is arranged horizontally and It has an outer peripheral side surface (29) and an upper surface (20) arranged on the outer periphery, the coil (4) is arranged on the upper surface (20) of the insulating base (2), and the electronic component (5) passes through the surface The mounting technology is mounted on the upper surface (20) of the insulating base (2), and the base (100) includes covering the insulating base (2) and the metal circuit by means of secondary injection molding The insulating frame (3) of (1), wherein the insulating frame (3) is provided with a horizontally arranged frame portion (30) integrally enclosing and covering the outer peripheral side surface (29) of the insulating base (2). and a vertical portion (31) vertically extending from the periphery of the upper surface of the frame body portion (30).
2. The base with coil according to claim 1, characterized in that: the metal circuit (1) comprises a horizontal part embedded in the insulating base (2), embedded in the vertical part ( 31) The vertical part and the bent part (194) connected between the horizontal part and the vertical part, the bent part (194) is located outside the insulating base (2) and is embedded in the inside the frame body (30).
3. The base with coil according to claim 2, characterized in that: the metal circuit (1) comprises several branches, and the several branches comprise at least two upright branches (19), each of the uprights The branch (19) includes the horizontal part and the vertical part, and the vertical parts of the two column branches (19) are distributed on the outer circumference of the outer peripheral side surface (29) of the insulating base (2). , the electronic component (5) and the coil (4) are arranged between the vertical parts of at least two of the column branches (19).
4. The base with coils according to claim 3, characterized in that: a plurality of the branches of the metal circuit (1) comprise horizontal branches (10) embedded in the insulating base (2) and The column branch (19) located on the peripheral side of the horizontal branch (10), one end of the column branch (19) is provided with a top surface (32) exposed to the vertical portion (31) A column pin (19a), the other end of the column branch (19) is arranged to form a column solder leg (19b) welded to the electronic component (5), the column of the column branch (19) A column connecting portion (19c) that constitutes a vertical column portion (19d) of the vertical portion and is located on the peripheral side of the horizontal branch (10) is formed between the lead (19a) and the column welding leg (19b) , the vertical column portion (19d) is located outside the insulating base (2) and is embedded in the vertical portion (31).
5. The base with coils according to claim 4, characterized in that: one end of a plurality of the horizontal branches (10) is provided with pins (1a) arranged at intervals, and a plurality of the horizontal branches (10) The other end is provided with solder pins (1b) arranged in parallel, and a connecting portion (1c) is formed between the pins (1a) and the solder pins (1b); the solder pins (1b) and the upright column Soldering legs (19b) are exposed on the upper surface of the insulating base (2), the pins (1a) are exposed on the upper surface (20) of the frame body (30), and the upright pins ( 19a) is exposed on the top surface (32) of the vertical portion (31).
6. The base with coils according to claim 5, characterized in that: the insulating frame (3) is provided with a thinned portion (33) on one side of the insulating base (2), and the pins (1a) ) is embedded in the thinned portion (33) of the insulating frame (3) and exposed on the surface of the thinned portion (33).
7. The base with coil according to claim 5, characterized in that: the branch circuit is provided with welding positions (1g) exposed on the upper surface (20) of the insulating base (2) and arranged at intervals, The coil (4) is provided with two welding pins (41), and the two welding pins (41) are respectively welded to the welding positions (1g).
8. The base with coils according to claim 7, characterized in that: the base (100) is provided with at least two coils (4), and each of the coils (4) corresponds to the one in the branch. The welding position (1g) is welded, and one end side of each branch circuit and each coil (4) welded is injection-molded into the insulating base (2).
9. The base with a coil according to claim 8, characterized in that: the welding positions (1g) corresponding to the two welding pins (41) of the same coil (4) for welding are formed at the same interval. At different positions in the branch, the insulating base (2) is provided with a welding groove (28) to expose the corresponding welding position (1g).
10. The base with coils according to claim 9, characterized in that: at least two of the coils (4) are respectively located inside two adjacent sides of the insulating base (2), and the two coils The longitudinal directions are perpendicular to each other.
11. The base with coil according to claim 3, characterized in that: the metal circuit (1) is a double-layer metal circuit arranged in a first direction, which are an upper-layer metal circuit (1d) and a lower-layer metal circuit respectively (1e), the column branch (19) is at least one of the upper metal circuit (1d) and the lower metal circuit (1e).
12. The base with coil according to claim 9, characterized in that: the coil (4) is fixed to the insulating base (2) by means of winding, and the insulating base (2) is provided with a pair of spaced apart A winding post (26), on which the coil (4) is wound and fixed.
13. The base with coil according to claim 12, characterized in that: the insulating base (2) is provided with a pair of positioning posts (27), the coil (4) has a pair of lead ends (42), the The lead end (42) is fixed on the positioning post (27), and the welding slot (28) is located between the winding post (26) and the positioning post (27).
14. The base with coil according to claim 13, characterized in that: the electronic component (5) is located in the area where the coil (4) is wound or is located outside the area where the coil (4) is wound.
15. A periscope voice coil motor, characterized by comprising the base (100) with a coil (4) according to any one of claims 1-14.
16. A method of manufacturing a base with a coil as claimed in any one of claims 1-14, characterized in that it comprises the steps of:

    In the first step, a plurality of metal circuits (1) connected in sequence are stamped and formed on the material tape;

    In the second step, an injection molding is performed on the metal circuit (1) to form a rectangular insulating base (2), the insulating base (2) is arranged horizontally and has an outer peripheral side surface (29) arranged on the outer periphery and upper surface (20);

    In the third step, a horizontally arranged coil (4) is electrically connected to the upper surface (20) of the insulating base (2), and electronic components (5) are mounted on the insulating base ( 2) the upper surface (20);

    In the fourth step, secondary injection molding is performed on the periphery of the metal circuit (1) and the insulating base (2) to form an insulating frame (3), and the metal circuit (1) is embedded in the insulating frame at the same time. The base (2) and the insulating frame (3), the insulating frame (3) is provided with a frame body part that is integrally enclosed and covered on the outer peripheral side surface (29) of the insulating base (2) and is arranged horizontally (30) and a vertical portion (31) vertically extending from the periphery of the upper surface of the frame portion (30);

    The fifth step is to cut the material strips connecting a plurality of the metal circuits (1), thereby forming a plurality of independent and complete bases (100).
17. The method for manufacturing a base with coils according to claim 16, characterized in that: in the first step, the metal circuit (1) includes a horizontal portion located on the same plane and a horizontal portion located on the outer peripheral side of the horizontal portion. vertical part; in the second step, the insulating base (2) is injection-molded on the horizontal part, and the vertical part is located outside the insulating base (2); between the third step and the fourth step A sixth step is added, bending the connection between the horizontal part and the vertical part of the metal circuit (1) outside the insulating base (2) to form a bending part (194), the folding The bent portion (194) is injection-molded into the frame portion (30).
18. The method for manufacturing a base with coils according to claim 17, characterized in that: in the first step, the metal circuit (1) comprises a number of horizontal branches (10) and a plurality of horizontal branches (10) located in the horizontal branches ( 10) A column branch (19) on the outer periphery, one end of a plurality of the horizontal branches (10) is arranged in parallel and at intervals to form a pin (1a), and the other end of the horizontal branch (10) is arranged at the end Soldering legs (1b) are formed, a connecting portion (1c) is formed between the pins (1a) and the welding legs (1b), and one end of the column branch (19) is arranged at intervals to form a rectangular column A pin (19a), the other end of the column branch (19) is arranged to form a column welding leg (19b) located on the same plane as the welding leg (1b); in the sixth step, the welding The feet (1b) and the post welding feet (19b) are exposed on the upper surface of the insulating base (2), and the pins (1a) are exposed on the upper surface (20) of the frame body (30). ), the upright pins (19a) are exposed on the top surface (32) of the vertical portion (31).
19. The method for manufacturing a base with a coil according to claim 18, characterized in that: in the third step, the upper surface of the insulating base (2) is set to a position corresponding to the welding leg (1b). A welding groove (25) is provided concavely below, and the welding leg (1b) is arranged in the welding groove (25).
20. The method for manufacturing a base with coils according to claim 19, characterized in that: in the process of forming the insulating base (2) in the second step, a pair of windings are further formed on the insulating base (2). A wire post (26) and a pair of positioning posts (27), in the third step, the coil (4) is wound on the wire winding post (26) and fixed to the position by the positioning post (27). The coil (4) has a pair of lead terminals (42).
21. A manufacturing method of a periscope voice coil motor, characterized by comprising the steps of manufacturing a base having a coil as described in any one of claims 16 to 20.

Images