Camera module and electronic equipment

Abstract

The utility model provides a camera module and electronic equipment. The camera module comprises a lens, a sensor chip, a circuit board and a covering structure, wherein the circuit board and the covering structure are arranged on the two opposite sides of the sensor chip respectively; the circuit board is electrically connected with the sensor chip and is used for receiving the image signal generated by the sensor chip, and a first electrode array is arranged on the circuit board; the covering structure comprises at least two covering plates which can be opened and closed relatively and a second electrode array which is arranged on the covering plates and is electrically connected with the circuit board; the circuit board is further used for providing opposite or same voltage for the first electrode array and the second electrode array, so that attractive force or repulsive force is generated between the first electrode array and the second electrode array, the covering plate is driven to be closed or opened, debris can be prevented from falling to the position of the sensor chip, and the sensor chip is prevented from being damaged. Normal imaging is not affected, the user experience is improved, and the service life of the device can be prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of intelligent terminals, in particular to a camera module and an electronic device with the same. BACKGROUND

[0002] With the update of smart devices such as mobile phones and the change of customer needs, the camera of the smart device has an automatic focusing function. The automatic focusing is achieved by moving the lens along the Z direction to change the distance between the lens and the chip. During automatic focusing, the movement of the lens requires the interaction of the mover and the stator. However, in the process of conceiving and implementing the present application, the inventors found the following problems: in the existing products and schemes, there is a gap between the mover and the stator of the camera system. During use, dust and debris from the outside world can fall onto the chip through the gap, resulting in black spots and black spots during photography, affecting the imaging effect. Therefore, it is necessary to design a shielding structure that can shield debris to an area outside the chip and does not affect the normal imaging of the chip.

[0003] The foregoing narrative is to provide general background information and does not necessarily constitute the prior art. CONTENT OF THE UTILITY MODEL

[0004] The purpose of the present application is to provide a camera module and an electronic device that can shield debris to an area outside the chip and can be opened and closed by electrostatic driving without affecting the normal shooting function.

[0005] To solve the above technical problems, the present application provides a camera module, which comprises a lens for collecting optical signals and a sensor chip for converting the optical signals collected by the lens into image signals. The camera module further comprises a circuit board and a shielding structure arranged on opposite sides of the sensor chip, respectively. The circuit board is electrically connected to the sensor chip for receiving the image signals generated by the sensor chip, and the circuit board is provided with a first electrode array. The shielding structure comprises at least two cover plates that can be opened and closed relative to each other, and a second electrode array arranged on the cover plates and electrically connected to the circuit board. The circuit board is further used to provide opposite or same voltages for the first electrode array and the second electrode array, so as to generate an attractive force or a repulsive force between the first electrode array and the second electrode array, thereby driving the cover plates to close or open.

[0006] Optionally, the camera module is provided with a plurality of balls made of conductive material between the circuit board and the cover plates, and the circuit board and the second electrode array are electrically connected through the balls.

[0007] Optionally, the circuit board is provided with a first ball groove for mounting the balls, and the first electrode array and the first ball groove are arranged on the side surface of the circuit board facing the sensor chip.

[0008] Optionally, the first electrode array includes at least two rows of first electrodes respectively arranged on opposite sides of the sensor chip, and the first ball groove is arranged between the first electrode and the sensor chip.

[0009] Optionally, the cover plate is provided with a second ball groove for installing a ball, and the second electrode array and the second ball groove are arranged on a side surface of the cover plate facing the sensor chip.

[0010] Optionally, the second electrode array includes at least two rows of second electrodes respectively arranged on opposite sides of the sensor chip, and the second ball groove is arranged between the second electrode and the sensor chip.

[0011] Optionally, the first ball groove is a straight-line groove, and the second ball groove is a square groove.

[0012] Optionally, when the cover plate and the circuit board are relatively stationary, projections of the first electrode and the second electrode on the circuit board are staggered.

[0013] Optionally, a side of the cover plate facing away from the sensor chip can be inclined relative to the other side of the cover plate, so that dust falling on the cover plate slides down the inclined surface and does not adhere to the cover plate.

[0014] The application also provides an electronic device comprising the above-described camera module.

[0015] As described above, the camera module provided by the application includes a circuit board, a sensor chip and a cover structure; the circuit board and the cover structure are respectively arranged on two sides of the sensor chip, the circuit board is provided with a first electrode array and a first ball groove, the cover structure includes at least two cover plates, and the cover plate is provided with a second electrode array and a second ball groove. The circuit board provides opposite or same voltages for the first electrode array and the second electrode array, so that an attractive force or a repulsive force is generated between the first electrode array and the second electrode array, thereby driving the cover plate to close or open, and then avoiding the falling of debris objects to the position of the sensor chip, which does not affect normal imaging and improves user experience. In addition, the cover plate is driven to open and close by electrostatic force, the overall driving volume is small, and the cover plate is opened and closed according to the use of the camera, which does not affect the normal shooting function, and at the same time realizes multifunctionalization and miniaturization.

[0016] The above description is only a summary of the technical solutions of the application, in order to more clearly understand the technical means of the application, which can be implemented according to the content of the specification, and in order to make the above and other purposes, features and advantages of the application more obvious and easy to understand, the following preferred embodiments are described in detail, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments consistent with the application and, together with the description, further serve to explain the principles of the application. In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings needed to be used in the description of the embodiments will be briefly introduced. As is apparent from the drawings, other drawings can also be obtained by those of ordinary skill in the art without any creative effort, based on these drawings.

[0018] Figure 1 A schematic diagram of a hardware structure of a mobile terminal for implementing various embodiments of the application;

[0019] Figure 2 A schematic diagram of a structure of a camera module according to the first embodiment;

[0020] Figure 3 A schematic diagram of a circuit board of the camera module according to the first embodiment.

[0021] Figure 4 A schematic diagram of a cover structure of the camera module according to the first embodiment.

[0022] The implementation, functional features and advantages of the application will be further described with reference to the embodiments and the accompanying drawings. The above-described drawings have shown the specific embodiments of the application, and will be described in more detail hereinafter. These drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0023] The exemplary embodiments will be described in detail herein with reference to the accompanying drawings. Unless otherwise specified, the same numbers refer to the same elements throughout the drawings and the description. The following description of the exemplary embodiments is not representative of all embodiments consistent with the application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the application as detailed in the appended claims.

[0024] It should be noted that, as used in this document, the terms "include," "includes," "including," "has," "have," "having," or the like are used in the sense of "including but not limited to." The phrase "consisting of" is used herein to mean the listed items and no other. The phrase "consisting essentially of" is used herein to mean the listed items, and other items that can not materially change the basic and novel characteristics of the described implementation. Unless otherwise specified, all processes described herein can be performed with or without water. Unless otherwise specified, the use of "or" in the context of alternatives of a list of items or options does not mean exclusive or, unless specifically stated otherwise. Unless otherwise specified, the use of "a" or "an" in the context of one or more items or options does not mean one and only one, but rather one or more. The use of the term "about" in describing the spatial or temporal relationship between items or options does not mean that the items or options have to be exactly as stated. Rather, the term "about" means that the items or options are approximately the same as stated, with some allowable negative and / or positive mathematical error to the degree permitted by the application and / or the context in which the term is being used. The use of the term "if" in the context of describing conditions or events that can or will occur in the future is not construed as requiring that the condition or event will occur. Rather, the term "if" is used to express an anticipated or expected condition or event that can or will occur or be performed in the future. The use of the term "detect" in the context of describing events or conditions that can or will occur in the future is not construed as requiring that the event or condition will occur. Rather, the term "detect" is used to express an anticipated or expected event or condition that can or will occur or be performed in the future.

[0025] It should be noted that, as used in this document, the terms "include," "includes," "including," "has," "have," "having," or the like are used in the sense of "including but not limited to." The phrase "consisting of" is used herein to mean the listed items and no other. The phrase "consisting essentially of" is used herein to mean the listed items, and other items that can not materially change the basic and novel characteristics of the described implementation. Unless otherwise specified, all processes described herein can be performed with or without water. Unless otherwise specified, the use of "or" in the context of alternatives of a list of items or options does not mean exclusive or, unless specifically stated otherwise. Unless otherwise specified, the use of "a" or "an" in the context of one or more items or options does not mean one and only one, but rather one or more. The use of the term "about" in describing the spatial or temporal relationship between items or options does not mean that the items or options have to be exactly as stated. Rather, the term "about" means that the items or options are approximately the same as stated, with some allowable negative and / or positive mathematical error to the degree permitted by the application and / or the context in which the term is being used. The use of the term "if" in the context of describing conditions or events that can or will occur in the future is not construed as requiring that the condition or event will occur. Rather, the term "if" is used to express an anticipated or expected condition or event that can or will occur or be performed in the future. The use of the term "detect" in the context of describing events or conditions that can or will occur in the future is not construed as requiring that the event or condition will occur. Rather, the term "detect" is used to express an anticipated or expected event or condition that can or will occur or be performed in the future.

[0026] It should be noted that, as used in this document, the terms "include," "includes," "including," "has," "have," "having," or the like are used in the sense of "including but not limited to." The phrase "consisting of" is used herein to mean the listed items and no other. The phrase "consisting essentially of" is used herein to mean the listed items, and other items that can not materially change the basic and novel characteristics of the described implementation. Unless otherwise specified, all processes described herein can be performed with or without water. Unless otherwise specified, the use of "or" in the context of alternatives of a list of items or options does not mean exclusive or, unless specifically stated otherwise. Unless otherwise specified, the use of "a" or "an" in the context of one or more items or options does not mean one and only one, but rather one or more. The use of the term "about" in describing the spatial or temporal relationship between items or options does not mean that the items or options have to be exactly as stated. Rather, the term "about" means that the items or options are approximately the same as stated, with some allowable negative and / or positive mathematical error to the degree permitted by the application and / or the context in which the term is being used. The use of the term "if" in the context of describing conditions or events that can or will occur in the future is not construed as requiring that the condition or event will occur. Rather, the term "if" is used to express an anticipated or expected condition or event that can or will occur or be performed in the future. The use of the term "detect" in the context of describing events or conditions that can or will occur in the future is not construed as requiring that the event or condition will occur. Rather, the term "detect" is used to express an anticipated or expected event or condition that can or will occur or be performed in the future.

[0027] It should be understood that the specific embodiments described herein are merely illustrative of the application and should not be construed as limiting the application.

[0028] In the following description, the suffixes used for elements, such as "module", "part", or "unit", are merely intended for facilitating recitation of the elements, and are not intended to limit the application as set forth in the embodiments. Therefore, "module", "part", or "unit" can be mixedly used.

[0029] The smart terminal can be implemented in various forms. For example, the smart terminal described in the present application can include a mobile terminal such as a mobile phone, a tablet, a notebook computer, a palmtop computer, a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, a smart band, a pedometer, and the like, and a stationary terminal such as a digital TV, a desktop computer, and the like.

[0030] The following description will be made with a mobile terminal as an example, and it will be understood by those skilled in the art that the configuration according to the embodiments of the present application can be applied to a stationary type terminal, except for elements particularly used for mobile purposes.

[0031] Referring to FIG. 1, Figure 1 which is a hardware structure diagram of a mobile terminal according to an embodiment of the present application, the mobile terminal 100 can include an RF (Radio Frequency) unit 101, a WiFi module 102, an audio output unit 103, an A / V (audio / video) input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, a processor 110, and a power supply 111, etc. Those skilled in the art will appreciate that the mobile terminal structure shown in FIG. 1 does not limit the mobile terminal and the mobile terminal can include more or less components than those shown, or some components can be combined, or some components can be implemented by one component, or some components can be implemented differently. Figure 1 Those skilled in the art will appreciate that the mobile terminal structure shown in FIG. 1 does not limit the mobile terminal and the mobile terminal can include more or less components than those shown, or some components can be combined, or some components can be implemented by one component, or some components can be implemented differently.

[0032] Hereinafter, the components of the mobile terminal will be described in detail with reference to FIG. 1. Figure 1 The components of the mobile terminal will be described in detail as follows:

[0033] The radio frequency unit 101 can be used for receiving and transmitting signals in the process of transmitting or receiving information or a call. Specifically, the radio frequency unit 101 receives downlink information from a base station and provides the received information to the processor 110 for processing. In addition, the radio frequency unit 101 transmits uplink data to the base station. Generally, the radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 can communicate with a network and other devices through wireless communication. The wireless communication can use any communication standard or protocol, including but not limited to GSM (Global System for Mobile communication), GPRS (General Packet Radio Service), CDMA2000 (Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division Duplexing-Long Term Evolution), TDD-LTE (Time Division Duplexing-Long Term Evolution), 5G, and 6G, and the like.

[0034] The WiFi belongs to a short-range wireless transmission technology. The WiFi module 102 can help a user to send and receive e-mails, browse web pages, and access streaming media, and the like. The WiFi module 102 provides the user with wireless broadband Internet access. Although the WiFi module 102 is shown, it is understood that the WiFi module 102 is not a necessary component of the mobile terminal, and can be omitted as needed without changing the essence of the application. Figure 1 The WiFi module 102 is shown, but it is understood that it is not a necessary component of the mobile terminal, and can be omitted as needed without changing the essence of the application.

[0035] The audio output unit 103 can convert audio data, which is received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109, into an audio signal and output the audio signal as sound when the mobile terminal 100 is in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, a broadcast reception mode, and the like. In addition, the audio output unit 103 can provide audio output related to a particular function performed by the mobile terminal 100 (e.g., a call signal reception sound, a message reception sound, and the like). The audio output unit 103 can include a speaker, a buzzer, and the like.

[0036] The A / V input unit 104 is configured to receive audio or video signals. The A / V input unit 104 can include a graphics processor (GPU) 1041 and a microphone 1042. The graphics processor 1041 processes image data of a still picture or a video obtained by an image capture device (e.g., a camera) in a video call mode or an image call mode. Processed image frames can be displayed on the display unit 106. Processed image frames can be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 can receive sound (audio data) via the microphone 1042 in a phone call mode, a recording mode, a voice recognition mode, or the like, and can process such sound into audio data. Processed audio (voice) data can be converted into a format transmittable to a mobile communication base station via the radio frequency unit 101 in the case of the phone call mode. The microphone 1042 can implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the process of receiving and transmitting audio signals.

[0037] The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. The light sensor includes an ambient light sensor and a proximity sensor, which can optionally adjust the brightness of the display panel 1061 according to the brightness of ambient light, and turn off the display panel 1061 and / or the backlight when the mobile terminal 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), and detect the magnitude and direction of gravity when at rest, which can be used for applications that recognize the posture of the mobile terminal (such as switching between landscape and portrait screens, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometers, tapping), and the like. The mobile terminal can also be configured with a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, and other sensors, which are not described here.

[0038] The display unit 106 is configured to display information input by a user or information provided to the user. The display unit 106 can include a display panel 1061, which can be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

[0039] The user input unit 107 can be used to receive input numerals or character information, and to generate key signal inputs related to user settings of the mobile terminal and control of functions. Optionally, the user input unit 107 can include a touch panel 1071 and other input devices 1072. The touch panel 1071, also called a touch screen, can collect touch operations of a user on or proximity thereto (e.g., operations by the user using a finger, a touch pen, or any suitable object or accessory on or in proximity to the touch panel 1071) and drive corresponding connection devices according to a pre-set program. The touch panel 1071 can include two parts, a touch detecting device and a touch controller. The touch detecting device detects a user's touch position and detects a signal resulting from a touch operation, and transmits the signal to the touch controller; the touch controller receives touch information from the touch detecting device and converts it into touch coordinates, which are then transmitted to the processor 110, and can receive commands from the processor 110 and execute them. In addition, the touch panel 1071 can be implemented in various types such as a resistive type, a capacitive type, an infrared type, and a surface acoustic wave type. In addition to the touch panel 1071, the user input unit 107 can include other input devices 1072. Optionally, the other input devices 1072 can include one or more of, but are not limited to, a physical keyboard, function keys (e.g., a volume control button, a switch button, etc.), a trackball, a mouse, a joystick, etc.

[0040] Optionally, the touch panel 1071 can cover the display panel 1061, and when the touch panel 1071 detects a touch operation on or in proximity thereto, it transmits the same to the processor 110 to determine the type of touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of touch event. Although in the above description, the touch panel 1071 and the display panel 1061 are implemented as two separate components to achieve the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 and the display panel 1061 can be integrated to achieve the input and output functions of the mobile terminal, without being limited thereto. Figure 1

[0041] The interface unit 108 serves as an interface through which at least one external device can be connected with the mobile terminal 100. For example, the external device can include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input / output (I / O) port, a video I / O port, an earphone port, etc. The interface unit 108 can be used to receive input (e.g., data information, power, etc.) from an external device and to transmit the received input to one or more elements within the mobile terminal 100, or can be used to transmit data between the mobile terminal 100 and the external device. ​

[0042] The memory 109 can be used to store software programs and various data. The memory 109 can mainly include a program storage area and a data storage area, and the program storage area can store an operating system, application programs required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; and the data storage area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), and the like. In addition, the memory 109 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state memory device.

[0043] The processor 110 is the control center of the mobile terminal, connects all parts of the mobile terminal through various interfaces and lines, executes various functions of the mobile terminal and processes data by running or executing software programs and / or modules stored in the memory 109 and calling data stored in the memory 109, and thus monitors the mobile terminal as a whole. The processor 110 can include one or more processing units; and can be integrated with an application processor and a modem processor, and the application processor mainly processes an operating system, a user interface, and application programs, and the like, and the modem processor mainly processes wireless communication. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 110.

[0044] The mobile terminal 100 can also include a power supply 111 (such as a battery) for supplying power to various components; and the power supply 111 can be logically connected to the processor 110 through a power management system, so as to realize functions such as management of charging, discharging, and power consumption management through the power management system.

[0045] Although Figure 1 The mobile terminal 100 can also include a Bluetooth module and the like, which are not described here.

[0046] Based on the above mobile terminal hardware structure, various embodiments of the present application are proposed.

[0047] As Figure 2 shown, the first embodiment of the present application provides a camera module, which includes a lens 6, a sensor chip 2, and a motor 5. The lens 6 is used to collect optical signals, the sensor chip 2 is used to convert the optical signals collected by the lens 6 into image signals, and the motor 5 provides power for driving the movement of the lens 6 to realize automatic focusing, and is arranged between the sensor chip 2 and the lens 6.

[0048] The camera module further comprises a circuit board 1, a shielding structure 3 and a ball 4, the circuit board 1 and the shielding structure 3 are arranged on opposite sides of the sensor chip 2, the shielding structure 3 is arranged between the motor 5 and the sensor chip 2, the ball 4 is made of conductive material and is arranged between the circuit board 1 and the cover plate 30. The circuit board 1 is electrically connected with the sensor chip 2, used for receiving the image signal generated by the sensor chip 2 and enabling the image signal to be transmitted to the outside of the camera. The circuit board 1 is also electrically connected with the motor 5, connecting the motor 5 with the external circuit, so that the motor 5 can drive the lens 6 to complete the moving operation.

[0049] As shown in Figure 3 , the circuit board 1 is provided with a first electrode array 11 and a first ball groove 12, and the first electrode array 11 and the first ball groove 12 are arranged on the surface of the circuit board 1 facing the sensor chip 2; the first electrode array 11 includes at least two rows of first electrodes, and the at least two rows of first electrodes are arranged on opposite sides of the sensor chip 2, and the first electrodes are in electrical connection with the circuit of the circuit board 1. The first ball groove 12 is used for arranging the ball 4 and is arranged between the first electrode and the sensor chip 2, and the circuit board 1 is electrically connected with the cover plate 30 through the ball 4. Further, the first ball groove 12 can be a straight groove or other ball guide groove.

[0050] As shown in Figure 4 , the shielding structure 3 includes at least two cover plates 30 which can be opened and closed relative to each other, the cover plate 30 is provided with a second electrode array 31 and a second ball groove 32, and the second electrode array 31 and the second ball groove 32 are arranged on the surface of the cover plate 30 facing the sensor chip 2, and the second electrode array 31 is electrically connected with the circuit board 1 through the ball 4. The second electrode array 31 includes at least two rows of second electrodes, and the at least two rows of second electrodes are arranged on opposite sides of the sensor chip 2, respectively, and the second ball groove 32 is used for accommodating the ball 4 and is arranged between the second electrode 31 and the sensor chip 2. Among them, the second ball groove 32 can be a square groove or other shape groove. In a further embodiment, the side of the cover plate 30 away from the sensor chip 2 can be designed as a slope relative to the other side of the cover plate 30, so that the external debris falling to the cover plate 30 can slide along the slope, thereby avoiding the deposition of debris on the cover plate 30 affecting the service life of the equipment.

[0051] Further, when the cover plate 30 and the circuit board 1 are relatively static, the first electrode of the circuit board 1 and the second electrode of the cover plate 30 are arranged alternately, and the first electrode and the second electrode are respectively connected with different conductive circuits. Therefore, the circuit board 1 is also used for providing opposite or same voltage for the first electrode array 11 and the second electrode array 31 respectively, so that the attraction or repulsion is generated between the first electrode array 11 and the second electrode array 31, thereby driving the cover plate 30 to close or open, and further avoiding the influence of the falling of the debris object to the position of the sensor chip 2 on the normal shooting.

[0052] According to the above structure and principle, the process of the camera module provided in the embodiment to realize the shielding function is as follows: when the camera is not turned on, the two cover plates 30 are in a closed state and are arranged between the sensor chip 2 and the lens 6, so that external debris cannot fall on the sensor chip 2. When the camera is turned on, the circuit board 1 receives a signal to provide the same voltage for the first electrodes of the first electrode array 11 and the second electrodes of the second electrode array 31, so that repulsion is generated between the first electrode array 11 and the second electrode array 31, the rolling balls 4 are rolled along the first rolling ball grooves 12 to the two ends of the circuit board 1 respectively under the action of the force, so as to drive the two cover plates to move in opposite directions until the cover plates 30 are completely opened and then the photographing operation is performed. Similarly, when the shooting is completed, the camera is turned off, the circuit board 1 provides opposite voltages for the first electrodes and the second electrodes, so that attraction is generated between the first electrode array 11 and the second electrode array 31, the rolling balls 4 are rolled along the first rolling ball grooves 12 to the middle of the circuit board 1 respectively under the action of the force, so as to drive the two cover plates 30 to be closed. The cover plates 30 are opened and closed through electrostatic driving, the overall driving volume is small, and the cover plates 30 can be opened and closed according to the use of the camera, without affecting the normal photographing function, while realizing multifunction and miniaturization.

[0053] In summary, the present application provides a camera module, which comprises a circuit board 1, a sensor chip 2, a shielding structure 3 and a rolling ball 4; the circuit board 1 and the shielding structure 3 are arranged on the two sides of the sensor chip 2 respectively, the circuit board 1 provides driving force for the movement of the shielding structure 3, the shielding structure 3 shields the external falling debris and dust for the sensor chip 2, the circuit board 1 is provided with a first electrode array 11 and a first rolling ball groove 12, the shielding structure 3 comprises at least two cover plates 30, and the cover plate 30 is provided with a second electrode array 31 and a second rolling ball groove 32. The first electrode array 11 is in conduction with the circuit board 1, the circuit board 1 is electrically connected with the cover plate 30 and the second electrode array 31 through the rolling ball 4, and the first electrode and the second electrode are in conduction respectively. During the use of the product, the circuit board 1 provides opposite or same voltages for the first electrode array 11 and the second electrode array 31, so that attraction or repulsion is generated between the first electrode array 11 and the second electrode array 12, thereby driving the cover plate 30 to be closed or opened, and then avoiding the falling of debris objects to the position of the sensor chip 2, without affecting the normal imaging, and improving the user experience.

[0054] The embodiment of the present application also provides an electronic device comprising the above-mentioned camera module. The camera module can shield the external debris and dust of the device to the area outside the sensor chip 2, reduce the influence of the debris and dust on the imaging effect of the device and the internal components of the device, improve the use cycle of the device and reduce the maintenance cost.

[0055] It can be understood that the above scenarios are only as examples and do not constitute a limitation on the application scenarios of the technical solutions provided by the embodiments of the present application. The technical solutions provided by the embodiments of the present application can also be applied to other scenarios. For example, those skilled in the art can know that, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0056] The above sequence numbers of the embodiments of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0057] The steps in the method of the embodiments of the present application can be adjusted in sequence, combined and deleted according to actual needs.

[0058] The units in the device of the embodiments of the present application can be combined, divided and deleted according to actual needs.

[0059] In the present application, for the same or similar term concept, technical solution and / or application scenario description, generally only detailed description is made when it appears for the first time, and for the sake of brevity, it is generally not repeated when it repeatedly appears, and when understanding the technical solutions and the like of the present application, the same or similar term concept, technical solution and / or application scenario description and the like which are not described in detail can be referred to the relevant description before.

[0060] In the present application, the description of each embodiment has its own emphasis, and the parts not described or recorded in a certain embodiment can be referred to the relevant description of other embodiments.

[0061] The technical features of the technical solutions of the present application can be combined arbitrarily, and in order to make the description simple, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope recorded in the present application.

[0062] The above is only the preferred embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the contents of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A camera module, comprising a lens for acquiring optical signals and a sensor chip for converting the optical signals acquired by the lens into image signals, characterized in that, The camera module further includes a circuit board and a masking structure respectively disposed on opposite sides of the sensor chip; the circuit board is electrically connected to the sensor chip and is used to receive the image signal generated by the sensor chip, and a first electrode array is provided on the circuit board; the masking structure includes at least two cover plates that can be opened and closed relative to each other and a second electrode array disposed on the cover plates and electrically connected to the circuit board; the circuit board is also used to provide opposite or the same voltage to the first electrode array and the second electrode array respectively, so that an attractive or repulsive force is generated between the first electrode array and the second electrode array, thereby driving the cover plates to close or open.

2. The camera module as described in claim 1, characterized in that, The camera module is disposed between the circuit board and the cover plate by ball bearings made of conductive material, and the circuit board and the second electrode array are electrically connected through the ball bearings.

3. The camera module as described in claim 2, characterized in that, The circuit board is provided with a first ball groove for mounting the ball, and the first electrode array and the first ball groove are both disposed on the side surface of the circuit board facing the sensor chip.

4. The camera module as described in claim 3, characterized in that, The first electrode array includes at least two rows of first electrodes respectively disposed on opposite sides of the sensor chip, and the first ball groove is disposed between the first electrodes and the sensor chip.

5. The camera module as described in claim 4, characterized in that, The cover plate is provided with a second ball groove for mounting the ball, and the second electrode array and the second ball groove are both disposed on the side surface of the cover plate facing the sensor chip.

6. The camera module as described in claim 5, characterized in that, The second electrode array includes at least two rows of second electrodes respectively disposed on opposite sides of the sensor chip, and the second ball groove is disposed between the second electrode and the sensor chip.

7. The camera module as described in claim 6, characterized in that, The first ball groove is a straight groove, and the second ball groove is a square groove.

8. The camera module as described in claim 6, characterized in that, When the cover plate is stationary relative to the circuit board, the projections of the first electrode and the second electrode on the circuit board are arranged alternately.

9. The camera module as described in claim 1, characterized in that, The side of the cover plate facing away from the sensor chip can be tilted relative to the other side of the cover plate.

10. An electronic device, characterized in that, Includes the camera module as described in any one of claims 1-9.

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