Novel periscopic camera module

Abstract

The utility model discloses a novel periscopic camera module. The novel periscopic camera module comprises a driving IC, a current detection unit and a transmission unit, the transmission unit and the current detection unit are electrically connected with the driving IC; the driving IC is in communication connection with the assembly equipment through an integrated circuit bus; the driving IC is electrically connected with the periscopic motor and is used for driving the periscopic motor to move the lens assembly and the prism assembly to designated positions during assembly; the driving IC is electrically connected with the current detection unit through the transmission unit; and the current detection unit is also electrically connected with the periscopic motor and is used for detecting the current flowing through the periscopic motor and transmitting the current to the driving IC through the transmission unit. By arranging the current detection unit, the motor current in the periscopic camera module is detected to determine whether the current value of the motor meets the requirement or not, whether the periscopic motor drives the prism assembly and the lens assembly to the designated position or not is sequentially determined, closed-loop confirmation is formed, and the product assembling efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to periscopic camera module's assembly technical field, especially a new periscopic camera module. BACKGROUND

[0002] Periscopic motor is the key component applied in periscopic camera module, is mainly used to realize the long -focus shooting and anti -shake function of electronic equipment, it utilizes the Lorentz force between the energized coil and magnet, drives the lens to move in the optical axis direction, changes the distance between the lens and photosensitive element, makes the shooting object of different distance can be clearly imaged. Control the current size in the coil, realize the balance of Lorentz force and the deformation reaction force of shell, let the lens stabilize in the focus position needed.

[0003] Periscopic camera module is widely applied, can be applied in smart mobile phone, tablet computer and notebook computer, provides clearer, stable picture for user.

[0004] The existing periscopic camera module is assembled, and the current is confirmed whether the current passes through the periscopic motor, and the size of the current is confirmed, so whether the prism assembly and lens assembly are driven to the specified position is confirmed, that is, the function of closed loop confirmation is lacked. UTILITY MODEL CONTENTS

[0005] The existing periscopic camera module is assembled, and the function of closed loop confirmation is lacked, so whether the periscopic motor drives the prism assembly and lens assembly to the specified position is confirmed.

[0006] In view of the above problem, a new periscopic camera module is provided, the current of motor in periscopic camera module is detected through the setting current detection unit, to determine whether the current value of motor meets the requirement, in turn determine whether the periscopic motor drives the prism assembly and lens assembly to the specified position, form closed loop confirmation, improve the assembly efficiency of product.

[0007] A new periscopic camera module, comprising:

[0008] Drive IC;

[0009] Current detection unit;

[0010] Transmission unit;

[0011] The transmission unit, current detection unit and drive IC are electrically connected;

[0012] The drive IC is connected with the assembly equipment through integrated circuit bus;

[0013] The driving IC is electrically connected with the periscope motor, and is used for moving the lens assembly and the prism assembly to a specified position by driving the periscope motor during assembly.

[0014] The driving IC is electrically connected with the current detection unit through the transmission unit.

[0015] The current detection unit is also electrically connected with the periscope motor, and is used for detecting the current flowing through the periscope motor and transmitting the current to the driving IC through the transmission unit.

[0016] In a first possible implementation of the periscope camera module, the periscope motor is a voice coil motor.

[0017] The coil of the voice coil motor comprises a positive terminal and a negative terminal.

[0018] In a second possible implementation of the first possible implementation of the periscope camera module, the current detection unit comprises:

[0019] a current detection chip;

[0020] a current conversion circuit;

[0021] The current detection chip is electrically connected with the current conversion circuit.

[0022] The current conversion circuit is electrically connected with the coil through the negative terminal.

[0023] The current conversion circuit is also electrically connected with the transmission unit.

[0024] In a third possible implementation of the second possible implementation of the periscope camera module, the current conversion circuit comprises:

[0025] a first resistor, a second resistor and a third resistor;

[0026] a first capacitor;

[0027] A first end of the first capacitor is electrically connected with a first end of the first resistor and a first pin of the current detection chip, and a second end of the first capacitor is electrically connected with a first end of the second resistor and a second pin of the current detection chip.

[0028] A second end of the first resistor is connected with a first end of the third resistor, and the negative terminal is connected after the connection.

[0029] A second end of the second resistor is electrically connected with a second end of the third resistor, and the transmission unit is electrically connected after the connection.

[0030] In combination with the third possible implementation manner of the utility model, in the fourth possible implementation manner, the transmission unit comprises:

[0031] The transmission chip;

[0032] The transmission chip comprises a first current pin;

[0033] The second end of the second resistor is connected with the second end of the third resistor, and a current signal output end is formed, which is electrically connected with the first current pin of the transmission chip.

[0034] In combination with the fourth possible implementation manner of the utility model, in the fifth possible implementation manner, the transmission chip further comprises:

[0035] An SDA pin and an SCL pin;

[0036] The transmission chip is electrically connected with the current detection chip through the SDA pin and the SCL pin.

[0037] The novel periscopic camera module is implemented, the current detection unit is arranged, the motor current in the periscopic camera module is detected, whether the current value of the motor meets the requirement is determined, whether the periscopic motor drives the prism assembly and the lens assembly to the specified position is determined in sequence, the closed loop confirmation is formed, and the assembly efficiency of the product is improved. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0039] Figure 1 It is the periscopic camera module assembly flowchart in the application;

[0040] Figure 2 It is the module connection schematic diagram of the novel periscopic camera module in the application;

[0041] Figure 3 It is the coil circuit diagram of the periscopic motor in the application;

[0042] Figure 4 It is the circuit diagram of the current detection unit in the application;

[0043] Figure 5 It is the circuit diagram of the transmission unit in the application. DETAILED DESCRIPTION

[0044] The technical solutions in the utility model will be clearly and completely described below in combination with the drawings in the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, other embodiments obtained by those skilled in the art without creative effort fall within the scope of the utility model.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0046] It is to be noted that when an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or indirectly connected to the other element.

[0047] It is to be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like, indicate directions or positions based on the directions or positions shown in the drawings, and are used for convenience of description and simplification of description only, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0048] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0049] The existing periscope type camera module lacks the function of closed loop confirmation when assembling, and thus cannot confirm whether the periscope motor drives the prism assembly and the lens assembly to the specified position.

[0050] In view of the above problems, a new periscope type camera module is proposed.

[0051] A new periscope type camera module, such as Figure 2 , Figure 2Is the module connection diagram of the novel periscope type camera module in the application; including driving IC, current detection unit, transmission unit; the transmission unit, the current detection unit and the driving IC are electrically connected; the driving IC is communicated and connected with the assembly equipment through the integrated circuit bus; the driving IC is electrically connected with the periscope motor, used for moving the lens assembly and the prism assembly to the specified position by driving the periscope motor during assembly; the driving IC is electrically connected with the current detection unit through the transmission unit; the current detection unit is also electrically connected with the periscope motor, used for detecting the current flowing through the periscope motor and transmitting to the driving IC through the transmission unit.

[0052] As Figure 1 , Figure 1 Is the periscope type camera module assembly process diagram in the application; in Figure 1 , 1 and 2 are prism assemblies, 3 and 4 are lens assemblies, 5 is the assembled periscope type camera module, the assembly equipment includes two device clamps, one is used for clamping the prism assembly or the lens assembly, and the other clamps the periscope motor (the energized probe on the clamp contacts the pin of the VCM, controls the driving IC through the integrated circuit bus IIC), the clamp can set the value of the 0x03 / 0x04 register of the driving IC to control the current size of the periscope motor. After the periscope motor is powered on, the lifting / sinking action of the specified position is performed, so that the lens assembly (Lens) and the prism assembly (Prism) are assembled.

[0053] In the embodiment, by setting the current detection unit, the motor current in the periscope type camera module is detected to determine whether the current value of the motor meets the requirements, and in turn to determine whether the periscope motor drives the prism assembly and the lens assembly to the specified position, forming a closed loop confirmation, and improving the assembly efficiency of the product.

[0054] Further, as Figure 3 , Figure 3 Is the coil circuit diagram of the periscope motor in the application; the periscope motor is a voice coil motor; the coil of the voice coil motor includes a positive terminal and a negative terminal.

[0055] In the embodiment, the coil of the voice coil motor (VCM Coil) includes 13 pins, wherein the pin 2 is the negative terminal VCM-, and the pin 10 is the positive terminal VCM+.

[0056] Further, as Figure 4 , Figure 4 Is the circuit diagram of the current detection unit in the application; the current detection unit includes a current detection chip U2 and a current conversion circuit; the current detection chip U2 is electrically connected with the current conversion circuit; the current conversion circuit is electrically connected with the coil through the negative terminal; the current conversion circuit is also electrically connected with the transmission unit.

[0057] As Figure 4 , the dashed part is a current conversion circuit, which is electrically connected with the pin IN+ and the pin IN- of the current detection chip U2, and is respectively electrically connected with the negative terminal VCM- of the coil and the IOUTN pin of the transmission chip U1.

[0058] As Figure 4 , the current conversion circuit includes a first resistor R1, a second resistor R2, a third resistor R3, and a first capacitor C3; the first end of the first capacitor C3 is electrically connected with the first end of the first resistor R1 and the first pin of the current detection chip U2, and the second end of the first capacitor C3 is electrically connected with the first end of the second resistor R2 and the second pin of the current detection chip U2; the second end of the first resistor R1 is connected with the first end of the third resistor R3, and the negative terminal is connected after the second end of the second resistor R2 and the second end of the third resistor R3 are connected.

[0059] Further, as Figure 5 , Figure 5 is the circuit diagram of the transmission unit in the present application. The transmission unit includes: a transmission chip U1; the transmission chip U1 includes a first current pin IOUTN; the second end of the second resistor R2 and the second end of the third resistor R3 are connected, forming a current signal output end IOUTN, which is electrically connected with the first current pin IOUTN of the transmission chip U1. The transmission chip U1 further includes an SDA pin and an SCL pin; the transmission chip U1 is electrically connected with the current detection chip U2 through the SDA pin and the SCL pin.

[0060] After the periscopic motor VCM is powered on, the assembly equipment reads the specified register of the current detection chip U2 (SGM832B) through IIC, obtains the power supply current size through the VCM, confirms whether the current meets the standard, determines whether the power-on effect of the VCM (driving the lens) is Pass, and then completes the assembly of the VCM Lens and Prism components, improves the assembly stability of the Lens and Prism components, and improves the product yield.

[0061] The assembly process is: the assembly equipment clamps the lens or prism with one clamp jaw, clamps the periscopic VCM with the other clamp jaw, drives the IC (Driver IC) to power on through IIC control, the motor is powered on, the current passes through the "SGM832B" chip, the register value is read through IIC and it is confirmed whether the current meets the standard, the power-on is OK, and the assembly of the Lens and Prism components is performed.

[0062] The novel periscopic camera module has the current detection unit, the motor current in the periscopic camera module is detected, whether the current value of the motor meets the requirement is determined, whether the periscopic motor drives the prism assembly and the lens assembly to the specified position is determined in turn, the closed loop confirmation is formed, and the assembly efficiency of the product is improved.

[0063] The above is only the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A new periscope camera module, characterized by, The utility model relates to a driving IC, a current detection unit, a transmission unit, the transmission unit, current detection unit with driving IC electric connection, driving IC passes through integrated circuit bus and assembly equipment communication connection, driving IC and periscopic motor electric connection is used for moving lens assembly and prism assembly to the designated position through driving periscopic motor in assembly, driving IC passes through transmission unit with current detection unit electric connection, current detection unit still with periscopic motor electric connection is used for detecting the current that flows through periscopic motor, and transmission unit is transmitted to driving IC. The periscopic motor is a voice coil motor. The coil of the voice coil motor includes a positive terminal and a negative terminal. The current detection unit includes a current detection chip, a current conversion circuit, the current detection chip with circuit conversion circuit electric connection, the current conversion circuit passes through negative terminal with coil electric connection, the current conversion circuit still with transmission unit electric connection. The current conversion circuit includes a first resistor, a second resistor, and a third resistor, a first capacitor, the first end of the first capacitor is electrically connected with the first end of the first resistor and the first pin of the current detection chip, the second end of the first capacitor is electrically connected with the first end of the second resistor and the second pin of the current detection chip, the second end of the first resistor is connected with the first end of the third resistor, and the negative terminal is connected. The second end of the second resistor is connected with the second end of the third resistor, and the transmission unit is electrically connected. The transmission unit includes a transmission chip, the transmission chip includes a first current pin, the second end of the second resistor is connected with the second end of the third resistor, and the first current pin of the transmission chip is electrically connected. The transmission chip further includes an SDA pin and an SCL pin, and the transmission chip is electrically connected with the current detection chip through the SDA pin and the SCL pin. ​ 2. The new periscope camera module according to claim 1, characterized in that, ​ ​ 3. The new periscope camera module according to claim 2, characterized in that, ​ ​ ​ ​ ​ ​ 4. The new periscope camera module according to claim 3, characterized in that, ​ ​ ​ ​ ​ ​ 5. The new periscope camera module according to claim 4, characterized in that, ​ ​ ​ ​ 6. The new periscope camera module according to claim 5, characterized in that, ​ ​ ​

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