A motor foot half-hole design module

Abstract

The utility model relates to camera module design field discloses a kind of module of motor foot half-hole design, including the shell of containing base, outer frame and pedestal, outer frame top end is equipped with lens group, built-in drive its focusing anti-shake motor mechanism, pin of outer frame side wall is electrically connected with motor mechanism;Pedestal is equipped with the circuit board with connecting half-hole, circuit board is around and is equipped in shell, pin and connecting half-hole one-to-one corresponding welding.The design is through the circuit board around and is equipped with adaptive shell structure, greatly reduces module internal space, fits the demand of three-fold periscopic module miniaturization, both solves the problem that traditional design causes module volume to be large due to reserving welding space, also avoids the reliability hidden danger such as welding difficulty increase, copper skin drop and virtual welding under compact layout, guarantees connection stability.

Description

Technical Field

[0001] This utility model relates to the field of camera module design, specifically to a module with a motor foot half-hole design. Background Technology

[0002] As consumer electronics devices rapidly evolve towards thinner, lighter, and higher-performance designs, the market has placed stringent demands on the miniaturization and compactness of cameras, especially for tri-fold periscope cameras. Their camera modules have a dense internal layout, requiring the integration of core components such as flexible circuit boards and motor mechanisms within a limited volume, making space utilization even more critical.

[0003] In the existing structural design of camera modules, the connection between the flexible circuit board and the internal motor mechanism needs to be achieved through pads for electrical and mechanical fixation. However, traditional pads mostly adopt conventional planar pad designs. This design requires additional installation space to be reserved in the connection area between the circuit board and the motor mechanism. This not only cannot adapt to the high-density layout requirements, but also easily causes structural redundancy in the connection parts, resulting in an increase in the overall size of the camera module and making it difficult to achieve device miniaturization. Utility Model Content

[0004] The present invention aims to provide a module with a half-hole design for motor feet to solve the problem of large module size caused by reserved space for circuit board pin connections.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a module with a motor foot half-hole design, comprising a housing, the housing comprising a base, an outer frame disposed on the base and a base, a lens assembly disposed at the top of the outer frame, a motor mechanism disposed inside the outer frame, the motor mechanism being used to drive the lens assembly for focusing and image stabilization, a plurality of pins disposed on the side wall of the outer frame, the pins being electrically connected to the motor mechanism, a circuit board disposed on the base, a plurality of connecting half-holes disposed at the end of the circuit board, the circuit board being wound around the housing, the plurality of pins corresponding one-to-one with the plurality of connecting half-holes and being soldered.

[0006] The beneficial effects of this solution are as follows: by winding the circuit board around the housing and adapting the circuit board winding layout to the housing structure, the internal space occupied by the module is greatly reduced, which meets the compact design requirements of the tri-fold periscope module. In space-constrained scenarios, traditional circuit board designs may also lead to increased difficulty in soldering operations due to the compact layout, and may even cause reliability issues such as copper foil peeling and poor soldering, which further restricts the application of camera modules in thin and light devices. However, the circuit board winding in this solution saves space while ensuring connection reliability, and solves the problem of large module size caused by reserved soldering space.

[0007] Preferably, as an improvement, the circuit board includes a substrate disposed on the base, a solder plate, and a flexible plate connected between the solder plate and the substrate. The base and the outer frame are respectively located on both sides of the top of the base. The substrate is connected to the top surface of the base. The flexible plate is wrapped around the top surface of the base and the side wall of the base. A number of connecting half holes are opened in the solder plate. The solder plate is laid flat on the side wall of the base and the outer frame.

[0008] The beneficial effects are as follows: the flexible board's bendable characteristics adapt to the shell winding requirements, allowing the substrate to fit the top surface of the base and the welding plate to fit the side walls of the base and the outer frame, thus optimizing the spatial layout; the connecting half holes are concentrated on the welding plate and laid flat on the side wall, shortening the pin welding path and improving the convenience of welding operations. At the same time, the flexible connection of the flexible board can absorb assembly errors, reduce the difficulty of module assembly, and take into account both structural compactness and assembly feasibility.

[0009] Preferably, as an improvement, the base sidewall is provided with a limiting member, which has a slot for engaging the welding plate. The limiting member is laid flat on the base sidewall to support the welding plate.

[0010] The beneficial effects are as follows: the limiting component on the side wall of the base engages the welding plate through the slot, achieving precise positioning of the welding plate and preventing displacement of the welding plate during welding or module use, thus ensuring the docking accuracy of the pins and the connecting half hole; the limiting component is laid flat on the side wall of the base and covers the welding plate, which not only provides stable support for the welding plate and prevents the welding plate from deforming under force, but also isolates the welding plate from the side wall of the base, reduces external interference, and improves connection stability.

[0011] Preferably, as an improvement, the limiting member includes a pad and a retaining plate fixed to the base, with a retaining groove formed in the retaining plate and the pad laid flat on the side wall of the base.

[0012] The beneficial effects are as follows: the pad is laid flat on the side wall of the base, providing uniform support for the welding plate and avoiding damage to the welding plate caused by localized stress; the slots in the clamping plate enable precise clamping of the welding plate, which not only enhances the installation stability of the welding plate, but also facilitates disassembly, processing and assembly, reduces the difficulty of component production, and improves the structural strength of the limiting component itself. Preferably, as an improvement, the width of the slot is equal to the thickness of the welding plate, and the bottom of the slot is rounded.

[0013] The beneficial effects are as follows: the width of the slot is equal to the thickness of the welding plate, so that there is no gap after the welding plate is snapped together, avoiding the loosening of the welding plate caused by module vibration and ensuring the electrical connection stability of the welding node; the bottom of the slot is set with rounded corners, which can avoid sharp edges from scratching the welding plate, while reducing the snapping resistance during assembly, improving the smoothness of assembly, and extending the service life of the welding plate.

[0014] Preferably, as an improvement, the welding plate is provided with a limiting hole, and the side wall of the base is provided with a limiting post corresponding to the limiting hole. The limiting post is engaged with a limiting ring, and the inner and outer rings of the limiting ring are respectively interference-fitted with the limiting post and the limiting hole.

[0015] The beneficial effects are as follows: the limiting hole of the welding plate and the limiting post of the base cooperate, and the limiting ring is fixed by interference fit, forming a multi-dimensional positioning structure, which further restricts the radial displacement of the welding plate; the interference fit connection method does not require additional fasteners, simplifies the assembly process, and improves the connection between the welding plate and the base, preventing the welding plate from shaking during module movement or anti-shaking, and ensuring welding reliability.

[0016] Preferably, as an improvement, a limiting plate perpendicular to the side wall is provided below the base side wall, and the limiting plate is used to abut against the welding plate.

[0017] The beneficial effects are as follows: the limiting plate at the bottom of the base is perpendicular to the side wall of the base and abuts against the welding plate, thereby achieving axial limiting of the welding plate and preventing the welding plate from sliding or falling off along the side wall of the base. The abutting action of the limiting plate can disperse the force on the welding plate, avoid damage to the welding joint caused by local force concentration, and improve the durability of the overall module structure.

[0018] Preferably, as an improvement, the shape and size of the welding plate are adapted to the shape and size of the base sidewall.

[0019] The beneficial effects are: the shape and size of the welding plate are perfectly matched with the side wall of the base, so that the welding plate can fit tightly against the side wall of the base, maximizing the use of the internal space of the module. The fit-fitting layout can reduce the gap between the welding plate and the base, enhance the impact and vibration resistance, and ensure the stable operation of the module in complex environments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is an exploded view of the overall structure of this utility model; Figure 3 This is an exploded structural diagram of the welding plate and base connection mechanism according to an embodiment of the present utility model. Detailed Implementation

[0021] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings include: base 1, pad 11, clamping plate 12, clamping slot 121, limiting post 13, limiting ring 131, limiting plate 14, outer frame 2, lens group 21, pin 22, base 3, circuit board 4, substrate 41, flexible plate 42, welding plate 43, connecting half hole 431, and limiting hole 432.

[0022] Example like Figures 1-2As shown, a module with a half-hole design for motor feet includes a housing. The housing includes a base 1 with a bottom end and an outer frame 2 and a base 3 fixedly connected to the top end of the base 1. The side walls of the outer frame 2 and the base 3 are coplanar with the side walls of the base 1 and are fixedly connected. A lens assembly 21 is provided at the top end of the outer frame 2, and a motor mechanism is provided inside the outer frame 2. The motor mechanism is used to drive the lens assembly 21 for focusing and image stabilization. Several pins 22 are provided on the side wall of the outer frame 2, and the pins 22 are electrically connected to the motor mechanism. A substrate 41 is horizontally provided at the top end of the base 3. A flexible plate 42 is connected to the substrate 41. The flexible plate 42 is a flexible circuit board. A solder plate 43 is connected to the end of the flexible plate 42 away from the substrate 41. The solder plate 43 and the substrate 41 are both rigid circuit boards. The substrate 41, the flexible plate 42 and the solder plate 43 together form the circuit board 4 of the module.

[0023] like Figures 2-3 As shown, the side wall of the base 1 is fixedly connected to a limiting post 13, a pad 11, a clamping plate 12, and a limiting plate 14. The side wall of the base 1 has an irregular shape. The limiting plate 14 is located below the side wall of the base 1 and is used to abut against the welding plate 43. The clamping plate 12 is located above the side wall of the base 1 near the flexible plate 42. The bottom end of the clamping plate 12 has a slot 121 for the welding plate 43 to be inserted. The thickness of the slot 121 is equal to that of the welding plate 43. The two sides of the slot 121 extend through the clamping plate 12. The bottom of the slot 121 on both sides is rounded. The pad 11 and the limiting post 13 are located in the middle of the side wall of the base 1. The pad 11 is laid flat on the side wall of the base 1. The side wall at the bottom of the outer frame 2 is provided with several pins 22. The shape and size of the welding plate 43 are adapted to the shape and size of the side wall of the base 1. The top of the welding plate 43 has several pins 22. The number of connecting half-holes 431 is equal to the number of pins 22 and corresponds one-to-one. The connecting half-holes 431 and pins 22 are connected by micro solder joints. Reflow soldering is performed by pre-printing solder paste on the connecting half-holes 431. After being heated in a high-temperature furnace, the solder paste melts and fills the gaps of the connecting half-holes 431. After cooling, a stable solder joint is formed. The molten solder fully coats the pins 22 and the half-hole wall, improving the soldering strength. Finally, glue is used to seal the solder joint. The soldering plate 43 is laid flat on the side wall of the base 1 and the outer frame 2. The soldering plate 43 has limiting holes 432 corresponding to the limiting posts 13. The limiting posts 13 are engaged with limiting rings 131. The inner and outer rings of the limiting rings 131 are interference-fitted with the limiting posts 13 and the limiting holes 432, respectively. The limiting rings 131 are made of plastic material.

[0024] Welding plate 43 manufacturing process: 1. Design the pads to extend beyond half the edge of the motherboard 43 and make several full-hole connections to provide a structural foundation for the subsequent forming of the half-holes 431. 2. The inner and outer walls of the connecting holes are copper-plated and gold-plated. The copper layer creates a stable conductive path, and the gold layer improves the welding reliability and corrosion resistance. At the same time, dot-matrix printing ink is used at the hole positions to avoid contamination or damage to the plating during subsequent processing. 3. Next, the shape of the soldering board 43 is cut using a two-step method of roughing and fine finishing. First, roughing is carried out along the preset path to separate the excess material outside the board frame of the soldering board 43. Then, a second cut is made on the basis of roughing to complete the fine finishing, which not only optimizes the shape accuracy, but also accurately removes half of the connecting full hole outside the board frame of the soldering board 43, so that the edge of the circuit board 4 forms a conductive pad in the shape of a half hole. 4. Finally, a CCD image sensor is used to perform a 100% full inspection of the connection half-hole 431, focusing on checking for defects such as exposed copper and oxidation, to ensure the integrity of the hole wall and the reliability of the plating of the connection half-hole 431, and to ensure the compatibility with subsequent soldering of pin 22.

[0025] The above are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A module with a motor foot half-hole design, characterized in that: The device includes a housing, which comprises a base, an outer frame and a base mounted on the base. A lens assembly is mounted on the top of the outer frame, and a motor mechanism is mounted inside the outer frame. The motor mechanism is used to drive the lens assembly for focusing and image stabilization. Several pins are mounted on the side wall of the outer frame, and the pins are electrically connected to the motor mechanism. A circuit board is mounted on the base, and several connecting half-holes are mounted on the end of the circuit board. The circuit board is wound around the housing, and the pins correspond one-to-one with the connecting half-holes and are soldered on.

2. The module with the motor foot half-hole design according to claim 1, characterized in that: The circuit board includes a substrate disposed on a base, a solder plate, and a flexible plate connected between the solder plate and the substrate. The base and the outer frame are located on the top two sides of the base, respectively. The substrate is connected to the top surface of the base, and the flexible plate is wrapped around the top surface of the base and the side wall of the base. Several connecting half holes are opened in the solder plate, and the solder plate is laid flat on the side wall of the base and the outer frame.

3. The module with the motor foot half-hole design according to claim 2, characterized in that: The base side wall is provided with a limiting component, which has a slot for locking the welding plate. The limiting component is laid flat on the base side wall to support the welding plate.

4. The module with the motor foot half-hole design according to claim 3, characterized in that: The limiting components include a pad and a locking plate fixed to the base, with a locking groove in the locking plate and the pad laid flat on the side wall of the base.

5. The module with the motor foot half-hole design according to claim 4, characterized in that: The width of the slot is equal to the thickness of the welding plate, and the bottom of the slot is rounded.

6. The module with the motor foot half-hole design according to claim 2, characterized in that: The welding plate has a limiting hole, and the side wall of the base is provided with a limiting post corresponding to the limiting hole. The limiting post is engaged with a limiting ring, and the inner and outer rings of the limiting ring are interference-fitted with the limiting post and the limiting hole, respectively.

7. The module with the motor foot half-hole design according to claim 2, characterized in that: A limiting plate perpendicular to the side wall is provided below the base side wall, and the limiting plate is used to abut against the welding plate.

8. The module with the motor foot half-hole design according to claim 2, characterized in that: The shape and size of the welding plate are adapted to the shape and size of the base sidewall.

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