Camera module, camera module assembling method and electronic equipment

Abstract

The invention relates to a camera module, an assembling method of the camera module and electronic equipment. The camera module comprises a base, a lens, an image acquisition module and a reflection assembly. The base is provided with an installation groove, the lens is provided with a motor used for moving the lens assembly, a first installation part and a second installation part which are arranged side by side are formed on a shell of the motor, a driving part of the motor is arranged on the first installation part, the shell is in sealed connection with the base, so that the installation groove forms a sealed space, and the image acquisition module is connected with the second connection part. The reflection assembly is arranged in the sealed space and is configured to reflect the light collected by the lens to the image collection module. According to the camera module, the assembly convenience is improved, and the shell of the motor is in sealed connection with the base, so that the reflection assembly is located in a sealed space, stray light is prevented from entering the image acquisition module through the reflection assembly, and the imaging quality is improved.

Description

Technical Field

[0001] The present application relates to the technical field of camera devices, and in particular to a camera module, an assembly method of a camera module, and an electronic device. Background Art

[0002] With the rapid development of electronic devices such as smart phones, tablets, and e-readers, lens modules in electronic devices also tend to be diversified in design to meet different shooting needs. Some electronic devices are equipped with periscope camera modules to obtain higher optical magnification shooting effects.

[0003] In the related art, a periscope camera module usually uses a 45° prism reflection method to deflect the light collected by the lens by 90° so as to be incident on the image sensor.

[0004] However, in the related art, the assembly structure of the camera module is complicated, and when the structure is simplified, light leakage is prone to occur, causing stray light to enter the image sensor, resulting in poor imaging effect. Summary of the invention

[0005] The embodiments of the present application provide a camera module, an assembly method of the camera module, and an electronic device to solve the problem of how to improve the ease of assembly while improving the imaging effect.

[0006] On the one hand, the present application provides a camera module, comprising:

[0007] A base having a mounting slot;

[0008] A lens, comprising a lens assembly and being provided with a motor for moving the lens assembly for focusing, the motor comprising a housing and a driving part, the housing being formed with a first mounting part and a second mounting part arranged side by side, the driving part being arranged at the first mounting part and connected to the lens assembly, the housing being sealingly connected to the base so that the mounting groove forms a sealed space;

[0009] an image acquisition module, connected to the second mounting portion; and

[0010] The reflective component is disposed in the sealed space and is configured to reflect the light collected by the lens to the image acquisition module.

[0011] The camera module, on the one hand, uses the reflective component in the optical path between the lens and the image acquisition module to reflect and adjust and extend the optical path, and then when the motor in the lens drives the lens component to move for focusing, the camera module can obtain a good telephoto imaging effect; on the other hand, the motor housing is formed with a first mounting portion and a second mounting portion arranged side by side, so that the image acquisition module can be easily assembled to the second mounting portion while meeting the installation requirements of the motor drive unit, thereby improving the convenience of assembly. Moreover, the housing is sealed and connected to the base, so that the reflective component is in a sealed space, avoiding stray light from entering the image acquisition module through the reflective component, so as to improve the imaging quality.

[0012] On the other hand, the present application provides an electronic device, including a shell, a decorative piece and the above-mentioned camera module, the decorative piece is connected to the shell and protrudes from the back side of the shell, the decorative piece has a groove connected to the space enclosed by the shell, the base of the camera module is arranged in the space enclosed by the shell, the image acquisition module of the camera module is located between the shell and the base, and part of the structure of the first mounting part of the camera module is accommodated in the groove.

[0013] The above-mentioned electronic device utilizes the above-mentioned camera module to achieve easy assembly and improved imaging quality, and further utilizes the groove of the decorative part to accommodate the first mounting portion where the lens assembly is located, so as to reduce the stacking thickness of the decorative part and the lens assembly, so as to maintain the lightness and thinness of the electronic device while reducing the protruding height of the decorative part from the back of the shell, so as to enhance the overall aesthetics of the electronic device.

[0014] On the other hand, the present application provides a method for assembling a camera module, comprising:

[0015] Providing a housing of a motor, the housing being formed with a first mounting portion and a second mounting portion disposed side by side;

[0016] Assembling a driving part of a motor and a lens assembly to the first mounting part, so that the driving part can drive the lens assembly to move relative to the first mounting part along the optical axis;

[0017] Assembling the image acquisition module to the second mounting portion;

[0018] Installing the reflector assembly into the mounting slot of the base; and,

[0019] The housing is sealed to the base so that the mounting groove forms a sealed space, and the reflective component is located in the sealed space;

[0020] Wherein, the reflection component is configured to be able to reflect the light collected by the lens to the image acquisition module.

[0021] The above-mentioned camera module assembly method can not only facilitate the assembly of the camera module, but also make it less likely for stray light to enter the reflective component of the obtained camera module, thereby providing a good imaging effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic rear view of an electronic device in one embodiment.

[0024] Figure 2 It is a schematic structural diagram of a camera module in one embodiment.

[0025] Figure 3 for Figure 2 A schematic diagram of the exploded structure of the camera module is shown.

[0026] Figure 4 It is a schematic diagram of the exploded structure of the first reflective element and the second reflective element relative to the base in a camera module in one embodiment.

[0027] Figure 5 It is a schematic diagram of the exploded structure of the adhesive component relative to the base in a camera module in one embodiment.

[0028] Figure 6 Another schematic diagram of the exploded structure of a camera module in one embodiment.

[0029] Figure 7 Another schematic diagram of the exploded structure of a camera module in one embodiment.

[0030] Figure 8 for Figure 2 The schematic diagram of the assembly structure of the camera module relative to the housing of the electronic device is shown.

[0031] Fig. 9 A schematic diagram of the partial structure of a camera module according to another embodiment.

[0032] Fig.10 for Fig. 9 A schematic diagram of the optical path of a camera module according to one embodiment is shown.

[0033] Fig.11 Schematic diagram of the partial structure of a camera module in another embodiment.

[0034] Fig.12 This is a schematic structural diagram of a camera module in one embodiment, in which the first reflective element and the second reflective element are plane reflective mirrors.

[0035] Fig.13 Schematic diagram of the structure of an electronic device in one embodiment.

[0036] Reference numerals:

[0037] 10. electronic device; 11. housing; 111. light-transmitting portion; 12. decorative part; 121. groove; 20. camera module; 21. base; 21a. mounting surface; 21b. mounting groove; 21b1. first groove wall; 21b2. second groove wall; 22. lens; 221. lens assembly; 221a. lens; 222. motor; 2221. housing; 2222. driving portion; A. first mounting portion; B. second mounting portion; 23. image acquisition module; 231. circuit board ; 232, image sensor; 222a, receiving cavity; 222b, light-transmitting hole; 222c, step groove; 24, reflection component; 24a, first reflective surface; 24b, second reflective surface; 24c, light-transmitting surface; 24d, strip groove; 241, first reflective element; 242, second reflective element; 243, first light-absorbing member; 244, second light-absorbing member; 245, first anti-reflection film; 246, second anti-reflection film; 247, light-blocking member; 25, filter element; 26, adhesive member. DETAILED DESCRIPTION

[0038] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0039] As used herein, "electronic device" refers to a device that can receive and / or send communication signals, including but not limited to a device that is connected via any one or more of the following connection methods:

[0040] (1) Connection via wired lines, such as Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, and direct cable connection;

[0041] (2) Via wireless interfaces, such as cellular networks, wireless local area networks (WLAN), digital television networks such as DVB-H networks, satellite networks, and AM-FM broadcast transmitters.

[0042] An electronic device configured to communicate via a wireless interface may be referred to as a "mobile terminal". Examples of mobile terminals include, but are not limited to, the following electronic devices:

[0043] (1) Satellite phone or cellular phone;

[0044] (2) Personal Communications System (PCS) terminals that can combine cellular radio telephones with data processing, fax, and data communications capabilities;

[0045] (3) Radiotelephone, pager, Internet / intranet access, Web browser, notepad, calendar, Personal Digital Assistant (PDA) equipped with a Global Positioning System (GPS) receiver;

[0046] (4) conventional laptop and / or palmtop receivers;

[0047] (5) Conventional laptop and / or palmtop radio telephone transceivers, etc.

[0048] See also Figure 1 , Figure 1 1 is a schematic diagram of a rear view of an electronic device 10 in an embodiment, that is, a schematic diagram of the structure when the electronic device 10 is observed from the back. The electronic device 10 includes a housing 11, and components of the electronic device 10 such as a camera module 20, a mainboard (not shown) and a battery (not shown) are arranged in the space enclosed by the housing 11. Among them, the mainboard can integrate the processor, power management module, storage unit and baseband chip of the electronic device 10. It can be understood that the electronic device 10 of the embodiment of the present application includes but is not limited to terminal devices such as mobile phones and tablet computers or other portable electronic devices.

[0049] In some embodiments, the housing 11 is provided with a light-transmitting portion 111, which may be a light inlet hole penetrating the housing 11, or a structural member such as glass or light-transmitting plastic. Taking the housing 11 provided with a light inlet hole as an example, the camera module 20 is arranged in the space enclosed by the housing 11, and the lens 22 of the camera module 20 is arranged corresponding to the light inlet hole, so that light outside the electronic device 10 can enter the lens 22 to meet the needs of the camera module 20 for imaging.

[0050] Combination Figure 2 and Figure 3As shown, the camera module 20 includes a base 21, a lens 22, an image acquisition module 23 and a reflective component 24. The base 21 is used as a carrier to install the lens 22, the image acquisition module 23 and the reflective component 24. It should be particularly pointed out that after the lens 22, the image acquisition module 23 and the reflective component 24 are installed and fixed by the carrier, the reflective component 24 is configured in the optical path between the lens 22 and the image acquisition module 23, and changes the propagation direction of light by reflection.

[0051] The base 21 has a mounting groove 21b, and the mounting groove 21b is used to mount the reflective component 24. The lens 22 and the image acquisition module 23 are mounted side by side to the base 21, so that the lens 22 and the image acquisition module 23 are located on the same side of the reflective component 24. The reflective component 24 is configured to reflect the light collected by the lens 22 to the image acquisition module 23.

[0052] Continue to combine Figure 2 and Figure 3 As shown, the lens 22 is equipped with a motor 222 for moving the lens assembly 221 for focusing. The motor 222 includes a housing 2221 and a driving part 2222, the driving part 2222 is connected to the lens assembly 221, and the driving part 2222 is used to drive the lens assembly 221 to move relative to the housing 2221 along the optical axis direction to adjust the moving distance of the lens assembly 221 along its optical axis direction, thereby achieving focusing.

[0053] Since the reflective component 24 plays a role in reflecting and adjusting and extending the optical path in the optical path between the lens 22 and the image acquisition module 23, when the motor 222 in the lens 22 drives the lens component 221 to move for focusing, the camera module 20 can obtain a good telephoto imaging effect. The motor 222 includes but is not limited to a voice coil motor.

[0054] The lens assembly 221 may include one or more lenses 221a with optical focal length. The lens 22 can collect incident light and adjust the light to improve the imaging quality of the camera module 20.

[0055] The housing 2221 is formed with a first mounting portion A and a second mounting portion B arranged side by side. Figure 2 and Figure 3 As shown, in some embodiments, the first mounting portion A of the housing 2221 serves as a carrier for mounting the lens assembly 221 and the driving portion 2222 of the motor 222, and the first mounting portion A encloses an installation space to accommodate the driving portion 2222 and the lens assembly 221, and provides space for the driving portion 222 to drive the lens assembly 2221 to move along the optical axis.

[0056] The image acquisition module 23 is connected to the second mounting portion B, so that the image acquisition module 23 will be connected to the first mounting portion A through the second mounting portion B, so that there is no need to separately set up a mounting seat to install the image acquisition module 23, so as to avoid the presence of a gap between the housing 2221 of the motor 222. This structural setting is conducive to simplifying the structure of the camera module 20 and improving the sealing performance. Specifically, the housing 2221 is sealed and connected to the base 21, so that the mounting groove 21b forms a sealed space. The reflective component 24 is arranged in the sealed space to avoid light leakage, causing stray light to enter the image acquisition module 23 through the reflective component 24. Therefore, the camera module 20 of the present application can reduce the interference of stray light on imaging to improve imaging quality.

[0057] Combination Figure 4 and Figure 5 As shown, the base 21 has a mounting surface 21a, and the mounting groove 21b has a notch that penetrates the mounting surface 21a, so that the reflective component 24 can be installed from the notch into the mounting groove 21b, and the reflective component 24 is accommodated by the mounting groove 21b, so that the reflective component 24 does not protrude from the mounting surface 21a. Therefore, when the housing 2221 is sealed and connected to the base 21, the mounting surface 21a can be used to improve the fit between the base 21 and the housing 2221, which is not only conducive to the sealing between the base 21 and the housing 2221, but also can make the overall stacking of the camera module 20 compact, so as to facilitate the miniaturization of the camera module 20.

[0058] It should be noted that a bonding member 26 is provided around the notch of the mounting surface 21 a , and the housing 2221 is sealedly connected to the base 21 via the bonding member 26 .

[0059] The adhesive member 26 may be formed by curing the glue connecting the outer shell 2221 and the base 21, or may be a double-sided tape. For example, when the outer shell 2221 and the base 21 are connected by glue, the glue may be first applied to one of the outer shell 2221 and the base 21, and then the surfaces to be connected are brought together so that the glue is squeezed apart to prevent the formation of air holes. In this way, good structural stability can be maintained, so that the lens 22 is not easy to fall off from the base 21; at the same time, the adhesive member 26 formed by curing the glue can play a dustproof and waterproof effect, thereby extending the service life of the camera module 20.

[0060] It should be noted that, since the driving part 2222 of the motor 222 and the lens assembly 221 are located in the first mounting part A, and the image acquisition module 23 is connected to the second mounting part B of the housing 2221, the image acquisition module 23 is arranged side by side with the lens assembly 221 in the first mounting part A, so that when the housing 2221 is sealed and connected to the base 21, the reflection assembly 24 is sealed in the mounting groove 21b, and the lens assembly 221 and the image acquisition module 23 are arranged side by side on the same side of the reflection assembly 24. The size of the lens assembly 221 along the optical axis direction is greater than the height of the image acquisition module 23, or there is a height difference between the first mounting part A and the second mounting part B. Thus, the whole of the camera module 20 forms a step shape on one side of the mounting surface 21a, so as to facilitate the assembly of the camera module 20 to the electronic device 10, the lens assembly 221 protrudes from the back of the housing 11 of the electronic device 10, and the image acquisition module 23 is accommodated in the housing 11 of the electronic device 10. Compared with the prior art, in which the lens assembly 221 and the image acquisition module 23 are stacked in the thickness direction of the electronic device 10, the camera module 20 of the present application is conducive to reducing the thickness of the electronic device 10 at the position corresponding to the image acquisition module 23, making it easier to achieve thinness and lightness of the electronic device 10 as a whole, and improving the overall appearance and portability. In addition, under this structural setting, the lens assembly 221 will not be stacked with the image acquisition module 23 in the length direction or width direction of the electronic device 10, thereby reducing the occupation of the internal space of the electronic device 10, which is conducive to miniaturization of the electronic device 10.

[0061] Combination Figure 1 and Figure 8 As shown, the electronic device 10 can be provided with a decorative piece 12 at a position corresponding to the lens 22 to enhance the decorative effect of the position. Specifically, the decorative piece 12 is connected to the housing 11 and protrudes from the back of the housing 11, thereby meeting the need for the lens 22 to be provided and the need for thinness of other positions of the housing 11 to be met.

[0062] The base 21 of the camera module 20 is arranged in the space enclosed by the housing 11, and the image acquisition module 23 of the camera module 20 is located between the housing 11 and the base 21. The decorative member 12 has a groove 121 connected to the space enclosed by the housing 11, and part of the structure of the first mounting portion A is accommodated in the groove 121. Since the lens assembly 221 is located in the space enclosed by the first mounting portion A, the first mounting portion A is accommodated by the groove 121 of the decorative member 12, and the stacking thickness of the decorative member 12 and the lens assembly 221 can be reduced, so as to maintain the electronic device 10 thin and light, and reduce the protruding height of the decorative member 12 from the back of the housing 11, so as to enhance the overall aesthetics of the electronic device 10.

[0063] See again Figure 2 and Figure 3As shown, the image acquisition module 23 includes a circuit board 231 and an image sensor 232, and the image sensor 232 is attached to the circuit board 231 and electrically connected to the circuit board 231. It can be understood that in the embodiment where the image acquisition module 23 includes the image sensor 232, the reflection component 24 is configured to be able to reflect the light collected by the lens 22 to the image sensor 232. In this embodiment, the circuit board 231 is connected to the second mounting portion B, so that the image sensor 232 is opposite to the reflection component 24 to receive the outgoing light of the reflection component 24.

[0064] The second mounting portion B is formed with a receiving cavity 222a, and the second mounting portion B is connected to the circuit board 231 and allows the image sensor 232 to be received in the receiving cavity 222a. Specifically, the side of the circuit board 231 where the image sensor 232 is provided is sealed and connected to the second mounting portion B, so that the image acquisition module 23 has a relatively independent space, so as to reduce the probability of dust adhering to the image sensor 232, so that the camera module 20 obtains a good imaging effect.

[0065] See again Figure 2 and Figure 3 As shown, in the camera module 20 provided by the present application, the camera module 20 also includes a filter element 25, which is used to filter out interference light to prevent the interference light from reaching the image sensor 232 and affecting normal imaging. The image sensor 232 includes but is not limited to a charge coupled device (CCD) or a complementary metal oxide semiconductor device (CMOS Sensor). In one embodiment, the filter element 25 can be an infrared cutoff filter.

[0066] In some embodiments, the filter element 25 is connected to the second mounting portion B and is located between the image acquisition module 23 and the reflective component 24. In this way, the stacking of the filter element 25 in the thickness direction of the image acquisition module 23 is utilized to reduce the height difference between the first mounting portion A and the second mounting portion B, so that the height difference between the first mounting portion A and the second mounting portion B is not too large. In this way, when the camera module 20 is assembled to the electronic device 10, the height of the lens assembly 221 protruding from the back of the housing 11 will not be very large, which is conducive to thinning the thickness of the decorative part 12 and avoiding the decorative part 12 from being too thick and too abrupt. Therefore, in this embodiment, when the camera module 20 is assembled to the electronic device 10, on the one hand, it is conducive to realizing the lightweight design of the electronic device 10, and at the same time, it also avoids the decorative part 12 from being too abrupt on the back of the housing 11, so as to maintain the overall aesthetic appearance of the electronic device 10.

[0067] Further, continue to combine Figure 2 and Figure 3 As shown, a light-transmitting hole 222b connected to the receiving cavity 222a is formed on one side of the second mounting portion B facing the reflective assembly 24, and a step groove 222c is formed on the hole wall of the light-transmitting hole 222b, and the filter element 25 is connected to the step groove 222c and covers the light-transmitting hole 222b. In this way, the filter element 25 can be connected to the housing 2221 of the motor 222 as a whole, so that the lens assembly 221, the motor 222 and the filter element 25 can be assembled to the base 21 together, thereby improving the assembly efficiency of the camera module 20.

[0068] The filter element 25 is sealed to the second mounting portion B, so that the light transmission hole 222b can be sealed by the filter element 25. Since the circuit board 231 is sealed to the second mounting portion B, the space where the image sensor 232 is located, that is, the receiving cavity 222a, is a closed space, so that the image sensor 232 is not easily stained with dust or moisture, so as to obtain a good imaging effect.

[0069] It should be noted that the filter element 25 can be connected to the second mounting portion B by glue to achieve a sealed connection between the filter element 25 and the second mounting portion B. Taking the installation of the filter element 25 in the step groove 222c as an example, when installing the filter element 25, glue can be applied around the peripheral side of the light-transmitting hole 222b at the step groove 222c, and then the filter element 25 can be attached to the step groove 222c, and the adhesion of the glue can be used to prevent the filter element 25 from falling off from the second mounting portion B. It can be understood that the glue can be UV glue, so that after the filter element 25 is attached to the step groove 222c, the UV glue can be irradiated with ultraviolet light to make the UV glue cure quickly without being placed in an oven, thereby improving assembly efficiency.

[0070] The step of connecting the image acquisition module 23 to the second mounting portion B may be performed before the housing 2221 is connected to the base 21 or after the housing 2221 is connected to the base.

[0071] For example, combined with Figure 6 As shown, after the filter element 25 and the image acquisition module 23 are connected to the second mounting portion B, the housing 2221 is connected to the base 21, so that the lens assembly 21, the driving portion 2222, the image acquisition module 23 and the filter element 25 located in the housing 2221 are assembled together to the base 21. This method has a high overall assembly efficiency.

[0072] For example, combining Figure 7As shown, in some embodiments, the filter 25 can be first assembled to the second mounting portion B, and then the housing 2221 is connected to the base 21, so that the lens assembly 21, the driving portion 2222 and the filter 25 are assembled to the base 21. After the housing 2221 is connected to the base 21, the image acquisition module 23 is connected to the second mounting portion B, so that the image acquisition module 23 is connected to the base 21 through the second mounting portion B.

[0073] It should be noted that the specific configuration of the reflective component 24 is not limited, as long as it can meet the deflection requirements of the light path to reflect the output light of the lens component 221 to the image sensor 232. Figure 2 As shown, the reflective component 24 includes a first reflective surface 24a and a second reflective surface 24b, the first reflective surface 24a is inclined to the optical axis of the lens component 221, and the second reflective surface 24b is inclined to the axis of the image acquisition module 23. The reflective component 24 is configured to be able to deflect the propagation optical path of the light collected by the lens component 221 by 180° so as to be incident on the image acquisition module 23. In this embodiment, the axis of the image acquisition module 23 can be understood as the perpendicular midline of the photosensitive surface of the image sensor 232. As a result, the alignment and assembly of the lens component 221, the reflective component 24 and the image acquisition module 23 can be made easier, the accuracy of the assembly can be improved, and the size of the camera module 20 in the thickness direction of the electronic device 10 can also be compressed to a greater extent.

[0074] In one embodiment, the reflective assembly 24 includes a first reflective element 241 and a second reflective element 242, and the first reflective element 241 and the second reflective element 242 are both configured to reflect light once. It should be noted that the first reflective surface 24a is located at the first reflective element 241, and the second reflective surface 24b is located at the second reflective element 242. The light-incoming side of the first reflective element 241 is arranged corresponding to the lens assembly 221, the light-outgoing side of the first reflective element 241 is arranged corresponding to the light-incoming side of the second reflective element 242, and the light-outgoing side of the second reflective element 242 is arranged corresponding to the image sensor 232. After the outgoing light of the lens assembly 221 hits the first reflective element 241, it is reflected by the first reflective element 241 and hits the second reflective element 242, and then is reflected by the second reflective element 242 and hits the image sensor 232.

[0075] Further, in one embodiment, the first reflective surface 24a forms an angle of 45° with the optical axis of the lens assembly 221, the first reflective surface 24a and the second reflective surface 24b are perpendicular to each other, and the second reflective surface 24b forms an angle of 45° with the axis of the image sensor 232. Thus, the first reflective surface 24a and the second reflective surface 24b can deflect the light path by 90° respectively, so that the reflective assembly 24 can deflect the light path by 180°, so that the light incident on the reflective assembly 24 can be emitted from the reflective assembly 24 in a direction parallel to the incident direction and then be emitted to the image sensor 232.

[0076] Combination Figure 3 and Figure 4 As shown, in some embodiments, the mounting groove 21b has a first groove wall 21b1 and a second groove wall 21b2 that are relatively inclined, and the first reflective element 241 and the second reflective element 242 are respectively in contact with the first groove wall 21b1 and the second groove wall 21b2.

[0077] In one embodiment, both the first reflective element 241 and the second reflective element 242 may be prisms, for example, right-angle prisms. Implementationally, both the first reflective element 241 and the second reflective element 242 are right-angle prisms, and both the first reflective element 241 and the second reflective element 242 include two right-angle surfaces and one inclined surface, one of the right-angle surfaces of the first reflective element 241 is disposed toward the lens assembly 221, one of the right-angle surfaces of the second reflective element 242 is disposed toward the image sensor 232, and the other right-angle surface of the first reflective element 241 is disposed opposite to the other right-angle surface of the second reflective element 242. The inclined surface of the first reflective element 241 forms the first light reflecting surface 24a, and the inclined surface of the second reflective element 242 forms the second light reflecting surface 24b.

[0078] Furthermore, combined with Fig. 9 and Fig.10 As shown, the first reflective element 241 and the second reflective element 242 can be an integral structure, that is, the two are connected as one. Taking the first reflective element 241 and the second reflective element 242 as an example, the first reflective element 241 and the second reflective element 242 can be a structural part of a prism for realizing at least two reflections of light.

[0079] It should be noted that, in some embodiments, the reflective component 24 is configured to be able to deflect the light collected by the lens component 221 to the image sensor 232 after at least two reflections. Fig. 9 and Fig.10As shown, in the embodiment where the first reflective element 241 and the second reflective element 242 are both prisms, the first reflective element 241 and the second reflective element 242 are arranged side by side to form a light-transmitting surface 24c facing the lens assembly 221 and the image acquisition module 23, and the reflective assembly 24 is configured such that the light emitted from the lens assembly 221 along the optical axis to the first reflective surface 24a can be incident on the light-transmitting surface 24c and totally reflected by the light-transmitting surface 24c to the second reflective surface 24b. For another example, in combination with Fig.11 and Fig.12 As shown, the reflective component 24 is configured to: be able to emit the light collected by the lens component 221 along the optical axis to the first reflective surface 24a, the first reflective surface 24a reflects the light to the second reflective surface 24b, and the light is reflected by the second reflective surface 24b to the transparent surface 24c to enter the image sensor 232.

[0080] Combination Fig. 9 and Fig.10 As shown, in the embodiment where both the first reflective element 241 and the second reflective element 242 are prisms and are integrally formed, the whole is a prism. In this embodiment, a light blocking member 247 is provided in the reflective assembly 24, and the light blocking member 247 is located between the first reflective surface 24a and the second reflective surface 24b. In some embodiments, a strip groove 24d is provided on the side of the reflective assembly 24 facing away from the light-transmitting surface 24c, and the light blocking member 247 is disposed in the strip groove 24d to further block stray light and prevent the stray light in the light reflected by the first reflective surface 24a from being reflected to the image sensor 232 through the second reflective surface 24b.

[0081] The light blocking member 247 may be formed by ink that is screen-printed or spin-coated on the sidewalls of the strip groove 24 d .

[0082] In some embodiments, in combination Fig.11 As shown, at least one of the first reflective surface 24 a and the second reflective surface 24 b is provided with a light absorbing material layer, and the light absorbing material layer is used to absorb stray light in the propagation light path between the lens assembly 221 and the image acquisition module 23 .

[0083] For ease of understanding, the camera module 20 will be further described below by taking the first light reflecting surface 24a and the second light reflecting surface 24b as an example in which both the light absorbing material layer is provided. Hereinafter, the light absorbing material layer provided on the first light reflecting surface 24a is referred to as the "first light absorbing member 243", and the light absorbing material layer provided on the second light reflecting surface 24b is referred to as the "second light absorbing member 244".

[0084] The first light absorbing member 243 is annular and encloses the first light reflecting area on the first light reflecting surface 24a, and the second light absorbing member 244 is annular and encloses the second light reflecting area on the second light reflecting surface 24b. In this way, while the first light absorbing member 243 and the second light absorbing member 244 absorb stray light, the first light reflecting area and the second light reflecting area can still meet the need for light reflection.

[0085] In one embodiment, the first reflective surface 24a and the second reflective surface 24b may be coated with a reflective film layer to improve the reflection effect of the first reflective surface 24a and the second reflective surface 24b on light, thereby improving the light utilization rate of the camera module 20, which is beneficial to improving the imaging brightness and imaging quality of the camera module 20. The reflective film layer may be a reflection enhancement film, which is used to increase the reflectivity of the reflective surface of the reflective component 24.

[0086] The first reflective surface 24 a is provided with a first anti-reflection film 245 , which covers the first reflective area. The first anti-reflection film 245 is used to increase the reflectivity of light incident on the first reflective area, thereby increasing the amount of light entering the image sensor 232 .

[0087] The second reflective surface 24 b is provided with a second anti-reflection film 246 , which covers the second reflective area. The second anti-reflection film 246 is used to increase the reflectivity of light incident on the second reflective area, thereby increasing the amount of light entering the image sensor 232 .

[0088] The first light absorbing member 243 and the second light absorbing member 244 may be formed on the prism by means of silk screen printing or spin coating, or may be formed on the prism by means of coating.

[0089] refer to Fig.12 As shown, in another embodiment, the first reflective element 241 and the second reflective element 242 may both be plane reflectors, for example, a plane reflector formed by coating a reflective film layer on one surface of a flat glass. By reflecting and deflecting the light path by a plane reflector, the volume and weight of the reflective component 24 can be effectively reduced, thereby reducing the volume and weight of the camera module 20. Of course, in another embodiment, one of the first reflective element 241 and the second reflective element 242 may be a prism and the other may be a plane reflector.

[0090] The first reflective element 241 and the second reflective element 242 are arranged at intervals from each other. The gap between the first reflective element 241 and the second reflective element 242 can be an air medium, or can be filled with materials such as light-transmitting glass or light-transmitting plastic. When the first reflective element 241 and the second reflective element 242 are air mediums, the loss of light propagating between the first reflective element 241 and the second reflective element 242 can be reduced, which is conducive to improving the light utilization rate of the camera module 20. The first reflective element 241 and the second reflective element 242 are arranged at intervals from each other, which can extend the path of light in the reflective component 24, that is, the back focus space of the lens component 221 is increased without increasing the size of the camera module 20 in the thickness direction of the electronic device 10, so that the lens component 221 with a telephoto characteristic can be adapted to achieve a higher optical magnification. It can be understood that the distance between the first reflective element 241 and the second reflective element 242 can be designed according to the back focus length of the lens component 221 to meet the corresponding magnification requirements, and this application will not repeat them.

[0091] Another embodiment of the present application provides an assembly method of a camera module 20, comprising:

[0092] A housing 2221 of the motor 222 is provided, and the housing 2221 is formed with a first mounting portion A and a second mounting portion B disposed side by side.

[0093] The driving portion 2222 of the motor 222 and the lens assembly 221 are assembled to the first mounting portion A, so that the driving portion 2222 can drive the lens assembly 221 to move relative to the first mounting portion A along the optical axis.

[0094] The image acquisition module 23 is assembled to the second mounting portion B.

[0095] Install the reflective assembly 24 into the mounting groove 21b of the base 21. And,

[0096] The housing 2221 is sealed and connected to the base 21, so that the mounting groove 21b forms a sealed space, and the reflective component 24 is located in the sealed space.

[0097] The reflection component 24 is configured to reflect the light collected by the lens 22 to the image collection module 23 .

[0098] The above-mentioned method for assembling the camera module 20 can not only facilitate the assembly of the camera module 20 , but also prevent stray light from entering the reflective component 24 in the obtained camera module 20 , thereby providing a good imaging effect.

[0099] It should be noted that, in the embodiment where the camera module 20 includes a filter element 25 located between the image acquisition module 23 and the reflective component 24, before the housing 2221 is sealed and connected to the base 21, it also includes:

[0100] The filter element 25 is connected to the second mounting portion B in a sealing manner.

[0101] In this embodiment, the filter element 25 can be connected to the second mounting portion B by glue to achieve a sealed connection between the filter element 25 and the second mounting portion B, so that the filter element 25 can be used for dust and water prevention, so that the image acquisition module 23 is not easily stained with dust or moisture, so as to obtain a good imaging effect.

[0102] refer to Fig.13 , Fig.13 The electronic device 10 is a schematic diagram of the structure of the electronic device 10 provided in the embodiment of the present application. The electronic device 10 may include a radio frequency (RF) circuit 501, a memory 502 including one or more computer-readable storage media, an input unit 503, a display unit 504, a sensor 505, an audio circuit 506, a wireless fidelity (WiFi) module 507, a processor 508 including one or more processing cores, and a power supply 509. Those skilled in the art will understand that Fig.13 The structure of the electronic device 10 shown in the figure does not constitute a limitation on the electronic device 10, and the electronic device 10 may include more or less components than those shown in the figure, or combine certain components, or arrange the components differently.

[0103] The radio frequency circuit 501 can be used to send and receive information, or receive and send signals during a call. In particular, after receiving the downlink information of the base station, it is handed over to one or more processors 508 for processing; in addition, the data related to the uplink is sent to the base station. Usually, the radio frequency circuit 501 includes but is not limited to an antenna, at least one amplifier, a tuner, one or more oscillators, a subscriber identity module (SIM) card, a transceiver, a coupler, a low noise amplifier (LNA), a duplexer, etc. In addition, the radio frequency circuit 501 can also communicate with the network and other devices through wireless communication. The wireless communication can use any communication standard or protocol, including but not limited to the global system for mobile communications (GSM), the general packet radio service (GPRS), the code division multiple access (CDMA), the wideband code division multiple access (WCDMA), the long term evolution (LTE), email, the short message service (SMS), etc.

[0104] The memory 502 can be used to store applications and data. The applications stored in the memory 502 contain executable codes. The applications can be composed of various functional modules. The processor 508 executes various functional applications and data processing by running the applications stored in the memory 502. The memory 502 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area can store data created according to the use of the electronic device 10 (such as audio data, a phone book, etc.), etc. In addition, the memory 502 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices. Accordingly, the memory 502 can also include a memory controller to provide the processor 508 and the input unit 503 with access to the memory 502.

[0105] The input unit 503 can be used to receive input digital, character information or user feature information (such as fingerprints), and generate keyboard, mouse, joystick, optical or trackball signal input related to user settings and function control. Specifically, in a specific embodiment, the input unit 503 may include a touch-sensitive surface and other input devices. The touch-sensitive surface, also known as a touch display screen or a touch pad, can collect user touch operations on or near it (such as operations performed by users using fingers, styluses, or any other suitable objects or accessories on or near the touch-sensitive surface), and drive corresponding connection devices according to a pre-set program. Optionally, the touch-sensitive surface may include a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into touch point coordinates, and then sends it to the processor 508, and can receive and execute commands sent by the processor 508.

[0106] The display unit 504 can be used to display information input by the user or information provided to the user and various graphical user interfaces of the electronic device 10, which can be composed of graphics, text, icons, videos and any combination thereof. The display unit 504 may include a display panel. Optionally, the display panel can be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like. Furthermore, the touch-sensitive surface may cover the display panel, and when the touch-sensitive surface detects a touch operation on or near it, it is transmitted to the processor 508 to determine the type of touch event, and then the processor 508 provides a corresponding visual output on the display panel according to the type of touch event. Although in Fig.13 In the embodiment, the touch sensitive surface and the display panel are used as two independent components to implement input and output functions, but in some embodiments, the touch sensitive surface and the display panel can be integrated to implement input and output functions. It can be understood that the display screen can include an input unit 503 and a display unit 504.

[0107] The electronic device 10 may also include at least one sensor 505, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel according to the brightness of the ambient light, and the proximity sensor may turn off the display panel and / or backlight when the electronic device 10 is moved to the ear. As a type of motion sensor, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (generally three axes), and can detect the magnitude and direction of gravity when stationary. It can be used for applications that identify the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for other sensors that the electronic device 10 can also be configured with, such as gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., they will not be repeated here.

[0108] The audio circuit 506 can provide an audio interface between the user and the electronic device 10 through a speaker and a microphone. The audio circuit 506 can convert the received audio data into an electrical signal, transmit it to the speaker, and convert it into a sound signal for output; on the other hand, the microphone converts the collected sound signal into an electrical signal, which is received by the audio circuit 506 and converted into audio data, and then the audio data is output to the processor 508 for processing, and then sent to another electronic device 10 through the radio frequency circuit 501, or the audio data is output to the memory 502 for further processing. The audio circuit 506 may also include an earphone socket to provide communication between an external earphone and the electronic device 10.

[0109] Wireless Fidelity (WiFi) is a short-range wireless transmission technology. The electronic device 10 can help users send and receive emails, browse web pages, and access streaming media through the wireless fidelity module 507, which provides users with wireless broadband Internet access. Fig.13 The wireless fidelity module 507 is shown, but it is understandable that it is not a necessary component of the electronic device 10 and can be omitted as needed without changing the essence of the invention.

[0110] The processor 508 is the control center of the electronic device 10. It uses various interfaces and lines to connect various parts of the entire electronic device 10. By running or executing applications stored in the memory 502 and calling data stored in the memory 502, it executes various functions of the electronic device 10 and processes data, thereby monitoring the electronic device 10 as a whole. Optionally, the processor 508 may include one or more processing cores; preferably, the processor 508 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, and the modem processor mainly processes wireless communications. It is understandable that the above-mentioned modem processor may not be integrated into the processor 508.

[0111] The electronic device 10 also includes a power supply 509 for supplying power to various components. Preferably, the power supply 509 can be logically connected to the processor 508 through a power management system, so that the power management system can manage charging, discharging, and power consumption. The power supply 509 can also include one or more DC or AC power supplies, recharging systems, power failure detection circuits, power converters or inverters, power status indicators, and other arbitrary components.

[0112] although Fig.13 Not shown, the electronic device 10 may also include a Bluetooth module, etc., which will not be described in detail here. In specific implementation, the above modules can be implemented as independent entities, or can be arbitrarily combined and implemented as the same or several entities. The specific implementation of the above modules can refer to the previous method embodiment, which will not be described in detail here.

[0113] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0114] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A camera module, characterized in that: include: A base having a mounting slot; A lens, comprising a lens assembly and being provided with a motor for moving the lens assembly for focusing, the motor comprising a housing and a driving part, the housing being formed with a first mounting part and a second mounting part arranged side by side, the driving part being arranged at the first mounting part and connected to the lens assembly, the housing being sealingly connected to the base so that the mounting groove forms a sealed space; an image acquisition module, connected to the second mounting portion; and The reflective component is disposed in the sealed space and is configured to reflect the light collected by the lens to the image acquisition module.

2. The camera module according to claim 1, characterized in that: The base has a mounting surface, the mounting groove has a notch penetrating the mounting surface, a bonding member is arranged around the notch, and the housing is sealed and connected to the base via the bonding member.

3. The camera module according to claim 1, characterized in that: The image acquisition module includes a circuit board and an image sensor. The image sensor is attached to the circuit board and electrically connected to the circuit board. The second mounting portion forms a receiving cavity. The side of the circuit board where the image sensor is arranged is sealed and connected to the second mounting portion, so that the image sensor is received in the receiving cavity.

4. The camera module according to claim 3, characterized in that: It also includes a filter element, which is connected to the second mounting portion and is located between the image sensor and the reflective component.

5. The camera module according to claim 4, characterized in that: A light-transmitting hole communicating with the receiving cavity is formed on one side of the second mounting portion facing the reflective component, a step groove is formed on the hole wall of the light-transmitting hole, and the filter element is connected to the step groove and covers the light-transmitting hole.

6. The camera module according to claim 4 or 5, characterized in that: The filter element is sealed and connected to the second mounting portion.

7. The camera module according to claim 1, characterized in that: The reflective component includes a first reflective surface and a second reflective surface, the first reflective surface is inclined to the optical axis of the lens, the second reflective surface is inclined to the axis of the image acquisition module, and the reflective component is configured to be able to deflect the propagation path of the light collected by the lens by 180° so as to be incident on the image acquisition module.

8. The camera module according to claim 7, characterized in that: The reflective assembly includes a first reflective element and a second reflective element. The first reflective element and the second reflective element are both configured to reflect light once. The first reflective surface is located on the first reflective element, and the second reflective surface is located on the second reflective element.

9. The camera module according to claim 8, characterized in that: The first reflective element includes a prism or a plane reflective mirror, and the second reflective element includes a prism or a plane reflective mirror.

10. The camera module according to claim 9, characterized in that: At least one of the first reflective surface and the second reflective surface is provided with a light absorbing material layer, and the light absorbing material layer is used to absorb stray light in the propagation light path between the lens and the image acquisition module.

11. An electronic device, characterized in that: It includes a shell, a decorative piece and a camera module as described in any one of claims 1 to 10, wherein the decorative piece is connected to the shell and protrudes from the back side of the shell, the decorative piece has a groove connected to the space enclosed by the shell, the base of the camera module is arranged in the space enclosed by the shell, the image acquisition module of the camera module is located between the shell and the base, and part of the structure of the first mounting part of the camera module is accommodated in the groove.

12. A method for assembling a camera module, characterized in that: include: Providing a housing of a motor, the housing being formed with a first mounting portion and a second mounting portion disposed side by side; Assembling a driving part of a motor and a lens assembly to the first mounting part, so that the driving part can drive the lens assembly to move relative to the first mounting part along the optical axis; Assembling the image acquisition module to the second mounting portion; Installing the reflector assembly into the mounting slot of the base; and, The housing is sealed and connected to the base so that the mounting groove forms a sealed space, and the reflective component is located in the sealed space; wherein the reflective component is configured to reflect the light collected by the lens to the image acquisition module.

13. The camera module assembly method according to claim 12, characterized in that: The camera module also includes a filter element located between the image acquisition module and the reflective component; Before the housing is sealed and connected to the base, the method further comprises: The filter element is sealed and connected to the second mounting portion.

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