Miniaturized cameras and terminals

Abstract

The present application discloses a miniaturized camera and terminal. The miniaturized camera includes a circuit board, a motor assembly, a lens, a reinforcement and a photosensitive chip. The circuit board has a first surface, a second surface and a receiving hole that passes through the first surface and the second surface. The motor assembly includes a housing, a first driving member and a second driving member. The housing is arranged on the first surface and has a light-through hole that is directly opposite to the receiving hole. The lens is arranged in the light-through hole and is connected to the second driving member. The first driving member drives the second driving member and the lens to move by magnetic force. The reinforcement is connected to the second surface and covers the receiving hole. The reinforcement is configured so that the magnetic force between the reinforcement and the first driving member and the magnetic force between the reinforcement and the second driving member are both less than a preset value. The photosensitive chip is accommodated in the receiving hole and is connected to the reinforcement and is electrically connected to the circuit board. By configuring the magnetic force between the reinforcement and the first driving member and the magnetic force between the reinforcement and the second driving member to be less than a preset value, the motor assembly is prevented from being disturbed by magnetic attraction.

Description

Technical Field

[0001] The present application relates to the field of camera technology, and in particular to a miniaturized camera and terminal. Background Art

[0002] With the development of camera technology, motor assemblies are usually used to drive the lens to move so that the camera can achieve automatic focus. In order to meet the needs of miniaturization and long travel, motor assemblies usually use stronger magnetic force to drive the lens to move farther. However, due to the stronger magnetic force of the motor assembly, there is a significant magnetic attraction between the magnetic force of the motor assembly and the steel plate used to enhance the strength of the circuit board in the camera, which interferes with the normal electromagnetic drive of the motor assembly, thereby affecting the focus effect of the camera. Utility Model Content

[0003] In view of the above, it is necessary to propose a miniaturized camera and terminal to prevent the motor assembly from being disturbed by the magnetic attraction and ensure the focusing effect of the miniaturized camera.

[0004] The embodiment of the present application provides a miniaturized camera having an optical axis, including:

[0005] A circuit board, the circuit board having a first surface and a second surface disposed opposite to each other, and the circuit board is provided with a receiving hole penetrating the first surface and the second surface along the direction of the optical axis;

[0006] A motor assembly, the motor assembly comprising a housing, a first driving member and a second driving member, the housing being disposed on the first surface of the circuit board and surrounding the receiving hole, the housing being provided with a light-through hole extending in the direction of the optical axis, the light-through hole being arranged opposite to the receiving hole, the first driving member being disposed in the housing, the second driving member being arranged in the housing for movement along the direction of the optical axis and opposite to the first driving member, and a magnetic force being generated between the first driving member and the second driving member;

[0007] A lens is disposed in the light-through hole of the housing and connected to the second driving member, wherein the first driving member drives the second driving member to move along the direction of the optical axis through magnetic force, so that the second driving member drives the lens to move along the direction of the optical axis;

[0008] a reinforcing member connected to the second surface of the circuit board and covering the receiving hole, wherein the reinforcing member is configured such that the magnetic force between the reinforcing member and the first driving member and the magnetic force between the reinforcing member and the second driving member are both smaller than a preset value;

[0009] A photosensitive chip, at least a portion of which is accommodated in the accommodation hole and connected to the reinforcing member, and the photosensitive chip is also electrically connected to the circuit board.

[0010] The above-mentioned miniaturized camera is configured such that the magnetic force between the reinforcing member and the first driving member and the magnetic force between the reinforcing member and the second driving member are both smaller than a preset value, for example, the preset value is 0, then there is no magnetic force between the reinforcing member and the first driving member and between the reinforcing member and the second driving member or the magnetic force is negligible, and there is substantially no magnetic attraction between the reinforcing member and the first driving member and between the reinforcing member and the second driving member, and the reinforcing member will not interfere with the electromagnetic drive of the motor assembly, effectively preventing the motor assembly from being interfered with by the magnetic attraction, and ensuring the focusing effect of the miniaturized camera. In addition, by using the reinforcing member to enhance the strength of the circuit board, and by opening a receiving hole on the circuit board and accommodating at least part of the photosensitive chip in the receiving hole, it helps to reduce the height of the miniaturized camera along the optical axis, so that the miniaturized camera meets the requirements of miniaturized design.

[0011] In one of the embodiments, a side of the photosensitive chip facing away from the reinforcing member is electrically connected to the first side of the circuit board through a plurality of electrical connectors.

[0012] In the above-mentioned miniaturized camera, the photosensitive chip is electrically connected to the circuit board through a number of electrical connectors.

[0013] In one embodiment, the miniaturized camera further includes a bracket and a filter, wherein the bracket is disposed on the first surface of the circuit board and around the receiving hole, wherein the shell is also disposed around the bracket, the bracket is provided with a receiving hole extending along the direction of the optical axis, the receiving hole is disposed opposite to the receiving hole, and the filter is disposed on the side of the bracket away from the first surface of the circuit board and covers the receiving hole.

[0014] The above-mentioned miniaturized camera can achieve the function of filtering light by setting the above-mentioned bracket and filter. In addition, by setting the bracket and filter in the light hole of the shell, the space in the shell can be fully utilized, which helps the miniaturized camera meet the needs of miniaturized design. By accommodating the photosensitive chip in the space enclosed by the bracket, filter, circuit board, and reinforcement, it helps to protect the photosensitive chip and ensure the stable use of the photosensitive chip.

[0015] In one embodiment, the light-through hole includes a first hole and a second hole that are continuously connected, the lens is arranged in the first hole, the bracket and the filter are located in the second hole, the diameter of the second hole is larger than the diameter of the first hole, and the cross-sectional area of ​​the second hole in the direction perpendicular to the optical axis is larger than the cross-sectional area of ​​the bracket in the direction perpendicular to the optical axis.

[0016] The miniaturized camera, by limiting the diameter of the second hole to be larger than the diameter of the first hole and larger than the diameter of the bracket, enables the bracket and the filter to be accommodated in the light-through hole, thereby fully utilizing the space in the housing.

[0017] In one embodiment, the filter is connected to the bracket by gluing, and the bracket is also provided with an escape hole connected to the storage hole in the bracket and the space outside the bracket, and / or the filter is gluingly connected to the bracket by waterproof and breathable glue.

[0018] The above-mentioned miniaturized camera, by providing the above-mentioned air escape holes and / or waterproof breathable glue, enables the space enclosed by the bracket, filter, circuit board, and reinforcement to be connected to the external space, thereby ensuring the positive and negative pressure balance in the space enclosed by the bracket, filter, circuit board, and reinforcement, and effectively protecting the normal use of electrical components such as photosensitive chips in the space enclosed by the bracket, filter, circuit board, and reinforcement.

[0019] In one of the embodiments, the photosensitive chip is connected to the reinforcement piece by gluing and / or welding.

[0020] The above-mentioned miniaturized camera limits the connection method between the photosensitive chip and the reinforcement component, and the connection method between the photosensitive chip and the reinforcement component is simple and effective, which helps to improve the packaging efficiency.

[0021] In one embodiment, there is a gap between the photosensitive chip and the hole wall of the accommodating hole.

[0022] The miniaturized camera defines a gap between the photosensitive chip and the wall of the receiving hole, so as to facilitate placement of the photosensitive chip in the receiving hole and adjust the position of the photosensitive chip, thereby ensuring the packaging yield.

[0023] In one of the embodiments, the second surface of the circuit board is connected to the reinforcing member by gluing and / or welding, and the circuit board and the reinforcing member are electrically connected.

[0024] The above-mentioned miniaturized camera, by limiting the connection method between the circuit board and the reinforcement, the connection method between the circuit board and the reinforcement is simple and effective, which helps to improve the packaging efficiency. In addition, by limiting the electrical connection between the circuit board and the reinforcement, the reinforcement can be grounded through a wire, thereby enabling the miniaturized camera to be grounded. The wiring of the wire is simple, which helps to optimize the layout within the terminal including the miniaturized camera.

[0025] In one embodiment, the miniaturized camera further includes an electrical component, wherein the electrical component is located in the light through hole and is electrically connected to the first surface of the circuit board, and the electrical component is located on one side of the photosensitive chip.

[0026] The above-mentioned miniaturized camera, by arranging electrical components in the light-through hole, can fully utilize the space in the shell, which helps the miniaturized camera meet the needs of miniaturized design.

[0027] An embodiment of the present application also provides a terminal, comprising a miniaturized camera as described in any of the above technical solutions.

[0028] In the above-mentioned terminal, in its miniaturized camera, by configuring the magnetic force between the reinforcing member and the first driving member and the magnetic force between the reinforcing member and the second driving member to be less than a preset value, such as 0, there is no magnetic force or the magnetic force is negligible between the reinforcing member and the first driving member and between the reinforcing member and the second driving member, and there is substantially no magnetic attraction between the reinforcing member and the first driving member and between the reinforcing member and the second driving member. The reinforcing member will not interfere with the electromagnetic drive of the motor assembly, effectively preventing the motor assembly from being interfered with by the magnetic attraction, and ensuring the focusing effect of the miniaturized camera. In addition, by using the reinforcing member to enhance the strength of the circuit board, and by opening a receiving hole on the circuit board and accommodating at least part of the photosensitive chip in the receiving hole, it is helpful to reduce the height of the miniaturized camera along the optical axis, so that the miniaturized camera meets the requirements of miniaturized design. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a cross-sectional schematic diagram of the miniaturized camera provided in an embodiment of the present application.

[0030] Figure 2 yes Figure 1 Enlarged schematic diagram of the middle II area.

[0031] Figure 3 It is a schematic diagram of the structure of the terminal provided in the embodiment of the present application.

[0032] Main component symbols

[0033] Terminal 1

[0034] Miniaturized Camera 100

[0035] Circuit board 10

[0036] First side 12

[0037] Second side 14

[0038] Accommodation hole 16

[0039] Gap 162

[0040] Motor assembly 20

[0041] Housing 22

[0042] The first driving member 24

[0043] Second driving member 26

[0044] Light hole 28

[0045] First hole 282

[0046] Second hole 284

[0047] Shot 30

[0048] Reinforcement 40

[0049] Photosensitive chip 50

[0050] Electrical connector 60

[0051] Bracket 70

[0052] Storage hole 72

[0053] Escape hole 74

[0054] Filter 80

[0055] Electrical components 90

[0056] Optical axis 200 DETAILED DESCRIPTION

[0057] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0058] In the description of the present application, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, it should be noted that the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0059] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0060] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0061] See also Figure 1 The embodiment of the present application provides a miniaturized camera 100. The miniaturized camera 100 can prevent the motor assembly 20 from being disturbed by the magnetic attraction, thereby ensuring the focusing effect of the miniaturized camera 100. In addition, the miniaturized camera 100 can also be used in situations such as mobile phone front cameras that require a one-way size reduction.

[0062] Please refer to Figure 1 and Figure 2 The miniaturized camera 100 has an optical axis 200 . The miniaturized camera 100 includes a circuit board 10 , a motor assembly 20 , a lens 30 , a reinforcement member 40 and a photosensitive chip 50 .

[0063] The circuit board 10 may be a flexible circuit board (FPC) or a printed circuit board (PCB). The circuit board 10 has a first surface 12 and a second surface 14 disposed opposite to each other. The circuit board 10 is provided with a receiving hole 16 penetrating the first surface 12 and the second surface 14 along the direction of the optical axis 200 .

[0064] The motor assembly 20 includes a shell 22, a first driving member 24 and a second driving member 26. The shell 22 is disposed on the first surface 12 of the circuit board 10 and is disposed around the accommodating hole 16. The shell 22 is provided with a light-through hole 28 extending in the direction of the optical axis 200. The light-through hole 28 is disposed opposite to the accommodating hole 16. The first driving member 24 is disposed in the shell 22. The second driving member 26 is movable in the direction of the optical axis 200 and is disposed in the shell 22 and is opposite to the first driving member 24. Magnetic force can be generated between the first driving member 24 and the second driving member 26. Exemplarily, the housing 22 may include a shell (not shown) and a carrier (not shown), the carrier is arranged on the shell to move along the direction of the optical axis 200, the light hole 28 is opened on the carrier, the first driving member 24 may include a coil (not shown), the second driving member 26 may include a magnet (not shown), the first driving member 24 is arranged on the shell, the second driving member 26 is arranged on the carrier, and the first driving member 24 and the second driving member 26 are arranged relative to each other, and by inputting a direction-variable electric signal to the first driving member 24, the first driving member 24 generates a direction-variable magnetic field, so that a magnetic force is generated between the first driving member 24 and the second driving member 26, thereby driving the second driving member 26 and the carrier to move along the direction of the optical axis 200. It can be understood that in other embodiments, the first driving member 24 may also include a magnet, and the second driving member 26 may include a coil.

[0065] The lens 30 is disposed in the light-through hole 28 of the housing 22 and is connected to the second driving member 26. The first driving member 24 drives the second driving member 26 to move along the direction of the optical axis 200 through magnetic force, so that the second driving member 26 drives the lens 30 to move along the direction of the optical axis 200. Exemplarily, the lens 30 is disposed in the light-through hole 28 of the carrier, and the lens 30 is indirectly connected to the second driving member 26 through the carrier. The first driving member 24 drives the second driving member 26 and the carrier to move along the direction of the optical axis 200 through magnetic force, so that the second driving member 26 and the carrier drive the lens 30 to move along the direction of the optical axis 200.

[0066] The reinforcing member 40 is connected to the second surface 14 of the circuit board 10 and covers the accommodating hole 16. The reinforcing member 40 is configured so that the magnetic force between the reinforcing member 40 and the first driving member 24 and the magnetic force between the reinforcing member 40 and the second driving member 26 are both less than a preset value. Exemplarily, the preset value may be 0, then there is no magnetic force between the reinforcing member 40 and the first driving member 24 and between the reinforcing member 40 and the second driving member 26, and the reinforcing member 40 will not cause electromagnetic interference to the first driving member 24 and the second driving member 26 of the motor assembly 20. Alternatively, the preset value may be slightly greater than 0, or may be a value less than 0.05N, then the magnetic force between the reinforcing member 40 and the first driving member 24 and between the reinforcing member 40 and the second driving member 26 can be ignored, and the reinforcing member 40 will not cause electromagnetic interference to the first driving member 24 and the second driving member 26 of the motor assembly 20. It can be understood that the preset value only needs to satisfy that the reinforcing member 40 does not cause electromagnetic interference to the first driving member 24 and the second driving member 26 of the motor assembly 20. For example, the preset value can be 0.01, 0.02, 0.03, 0.04, 0.05, etc., and this embodiment does not specifically limit this. The second surface 14 of the circuit board 10 can be connected to the reinforcing member 40 by gluing and / or welding, and the circuit board 10 and the reinforcing member 40 can be electrically connected. Adhesion can be understood as bonding by glue or conductive glue, and welding can be understood as welding by molten solder balls. When the circuit board 10 is connected to the reinforcing member 40 by conductive glue or welding, the circuit board 10 and the reinforcing member 40 are electrically connected. When the circuit board 10 and the reinforcing member 40 are electrically connected, the reinforcing member 40 can be grounded through a wire, so that the miniaturized camera 100 can be grounded. The grounding wire can be directly connected to the reinforcing member 40 to ground the miniaturized camera 100. The wiring of the wire is simple, which helps to optimize the terminal 1 including the miniaturized camera 100 (see Figure 3 Layout as shown).

[0067] In some embodiments, the reinforcing member 40 may be made of a metal material, and the metal material includes a weakly magnetic metal material and a magnetic metal material. The weakly magnetic metal material may be, for example, copper, aluminum, silver, titanium, aluminum alloy, alloy copper, copper-aluminum alloy, silicon-copper-aluminum-nickel alloy, or the like, which is not easy to generate magnetic force with the first driving member 24 and the second driving member 26. Alternatively, the magnetic metal material may be a ferromagnetic material such as steel, iron, or nickel, and a shielding layer may be at least partially plated on the reinforcing member 40 to weaken the magnetic force between the reinforcing member 40 and the first driving member 24 and the second driving member 26. For example, the shielding layer may be plated on the reinforcing member 40 at a position directly below the first driving member 24 and the second driving member 26, at a position adjacent to the position directly below, or at other positions relatively close to the first driving member 24 and the second driving member 26. The partially plated shielding layer may also avoid interference with other devices.

[0068] It can be understood that when the reinforcement 40 is made of metal material and the reinforcement 40 is connected to the circuit board 10 by conductive adhesive, the surface of the reinforcement 40 connected to the circuit board 10 can be partially nickel-plated so that the plated nickel material can be used to combine with the conductive adhesive to improve the conductivity between the circuit board 10 and the reinforcement 40. Exemplarily, nickel can be plated at other positions on the reinforcement 40 away from the position directly below the first driving member 24 and the second driving member 26, such as the edge position of the reinforcement 40. Local nickel plating can also reduce the magnetic interference generated between the plated nickel material and the first driving member 24 and the second driving member 26.

[0069] In some embodiments, the reinforcement 40 can also be a weak magnetic material such as 316L stainless steel. The surface where the reinforcement 40 and the circuit board 10 are connected needs to be partially nickel-plated so that the plated nickel material can be used to combine with the conductive adhesive to improve the conductivity between the circuit board 10 and the reinforcement 40. For example, nickel can be plated at other positions on the reinforcement 40 away from the position directly below the first driving member 24 and the second driving member 26, such as the edge of the reinforcement 40. By locally plating nickel on the reinforcement 40, on the one hand, the conductivity between the circuit board 10 and the reinforcement 40 can be improved, and on the other hand, the magnetic interference generated between the plated nickel material and the first driving member 24 and the second driving member 26 can be reduced.

[0070] In some embodiments, the reinforcing member 40 may also be made of a ceramic material, such as alumina ceramics, silicon nitride ceramics, silicon carbide ceramics, and other materials that are not easy to generate magnetic force with the first driving member 24 and the second driving member 26. It can be understood that when the reinforcing member 40 is made of a ceramic material, it can be directly connected to the wire through the circuit board 10 for grounding.

[0071] In some embodiments, the reinforcing member 40 may also be made of a superhard material, such as natural diamond, black diamond, polymerized diamond nanorods, chemical vapor deposited diamond, polycrystalline cubic silicon nitride, and other materials that are not easy to generate magnetic force with the first driving member 24 and the second driving member 26. It can be understood that when the reinforcing member 40 is made of a superhard material, it can be directly connected to the wire through the circuit board 10 for grounding.

[0072] In some embodiments, the reinforcing member 40 may also be made of special materials, such as hard alloy, special plastic, special rubber, etc., which are not easy to generate magnetic force with the first driving member 24 and the second driving member 26. It can be understood that when the reinforcing member 40 is made of special materials, it can be directly connected to the wire through the circuit board 10 for grounding.

[0073] It can be understood that the reinforcing member 40 can be a solid structure, a hollow structure, a partially hollow structure, a mesh structure, etc., and it is only necessary to ensure that the reinforcing member 40 has sufficient hardness to support the circuit board 10 and the photosensitive chip 50. In this way, when the reinforcing member 40 is a hollow structure, a partially hollow structure, or a mesh structure, it helps to reduce the weight of the reinforcing member 40, thereby reducing the weight of the miniaturized camera 100, and helping the terminal 1 including the miniaturized camera 100 to meet the lightweight requirements.

[0074] At least part of the photosensitive chip 50 is accommodated in the accommodation hole 16 of the circuit board 10 and connected to the reinforcement 40, and the photosensitive chip 50 is also electrically connected to the circuit board 10. The photosensitive chip 50 is used to receive the light signal passing through the lens 30 and convert the light signal into an electrical signal, and then transmit the electrical signal to the circuit board 10. In this embodiment, the side of the photosensitive chip 50 away from the reinforcement 40 is relatively protruding from the first surface 12 of the circuit board 10 along the direction of the optical axis 200. It can be understood that in other embodiments, the photosensitive chip 50 can also be completely accommodated in the accommodation hole 16 of the circuit board 10. Among them, the photosensitive chip 50 can be connected to the reinforcement 40 by gluing and / or welding.

[0075] The above-mentioned miniaturized camera 100 is configured so that the magnetic force between the reinforcement member 40 and the first driving member 24 and the magnetic force between the reinforcement member 40 and the second driving member 26 are both smaller than a preset value, the preset value is, for example, 0 or slightly greater than 0, then there is no magnetic force or the magnetic force is negligible between the reinforcement member 40 and the first driving member 24 and between the reinforcement member 40 and the second driving member 26, and there is substantially no magnetic attraction between the reinforcement member 40 and the first driving member 24 and between the reinforcement member 40 and the second driving member 26, the reinforcement member 40 will not interfere with the electromagnetic drive of the motor assembly 20, and the motor assembly 20 is effectively prevented from being interfered with by the magnetic attraction of the reinforcement member 40, thereby ensuring the driving accuracy of the motor assembly 20 and thereby ensuring the focusing effect of the miniaturized camera 100. In addition, by providing a reinforcing member 40 to enhance the strength of the circuit board 10, and by opening a receiving hole 16 on the circuit board 10 and accommodating at least a portion of the photosensitive chip 50 in the receiving hole 16, it helps to reduce the height of the miniaturized camera 100 along the optical axis 200, so that the miniaturized camera 100 meets the requirements of miniaturized design, thereby enabling the terminal 1 including the miniaturized camera 100 to meet the requirements of lightness and thinness.

[0076] In this embodiment, the side of the photosensitive chip 50 facing away from the reinforcing member 40 is electrically connected to the first side 12 of the circuit board 10 through a plurality of electrical connectors 60, and the plurality of electrical connectors 60 are distributed around the photosensitive chip 50, wherein the electrical connectors 60 may be gold wires. In this way, by providing the above-mentioned electrical connectors 60, the photosensitive chip 50 is electrically connected to the circuit board 10. It can be understood that the electrical connectors 60 may also be copper wires, aluminum wires, silver wires, and other conductors that can electrically connect the photosensitive chip 50 to the first side 12 of the circuit board 10.

[0077] In this embodiment, there is a gap 162 between the photosensitive chip 50 and the hole wall of the receiving hole 16, that is, the cross-sectional area of ​​the photosensitive chip 50 in the direction perpendicular to the optical axis 200 is smaller than the cross-sectional area of ​​the receiving hole 16 in the direction perpendicular to the optical axis 200. In this way, by limiting the gap 162 between the photosensitive chip 50 and the hole wall of the receiving hole 16, it is convenient to place the photosensitive chip 50 in the receiving hole 16 and adjust the position of the photosensitive chip 50 to ensure the packaging yield. It can be understood that during actual packaging, colloid can be poured into the gap 162 to improve the connection strength between the photosensitive chip 50 and the circuit board 10.

[0078] In this embodiment, the miniaturized camera 100 further includes a bracket 70 and a filter 80. The bracket 70 is disposed on the first surface 12 of the circuit board 10 and is disposed around the receiving hole 16. The housing 22 is also disposed around the bracket 70. The bracket 70 is provided with a receiving hole 72 extending along the direction of the optical axis 200. The receiving hole 72 is disposed opposite to the receiving hole 16. The filter 80 is disposed on the side of the bracket 70 away from the first surface 12 of the circuit board 10 and covers the receiving hole 72. The bracket 70 and the filter 80 are both located in the light-through hole 28. The filter 80, the bracket 70, the circuit board 10 and the reinforcement 40 enclose a space for accommodating the photosensitive chip 50. The bracket 70 may be rectangular, circular or in other shapes. In this way, by providing the above-mentioned bracket 70 and the filter 80, the miniaturized camera 100 can achieve the function of filtering light and improve the photographic effect of the miniaturized camera 100. In addition, by arranging the bracket 70 and the filter 80 in the light hole 28 of the housing 22, the space in the housing 22 is fully utilized, which helps the miniaturized camera 100 meet the requirements of miniaturized design. By accommodating the photosensitive chip 50 in the space enclosed by the bracket 70, the filter 80, the circuit board 10, and the reinforcing member 40, it helps to protect the photosensitive chip 50 and ensure the stable use of the photosensitive chip 50.

[0079] In this embodiment, the light-through hole 28 of the housing 22 includes a first hole 282 and a second hole 284 which are continuously connected. The lens 30 is disposed in the first hole 282, and the bracket 70 and the filter 80 are located in the second hole 284. The diameter of the second hole 284 is larger than the diameter of the first hole 282, and the cross-sectional area of ​​the second hole 284 in the direction perpendicular to the optical axis 200 is larger than the cross-sectional area of ​​the bracket 70 in the direction perpendicular to the optical axis 200. The first hole 282 is generally a trumpet-shaped hole, and the second hole 284 is generally a cylindrical hole. In this way, by limiting the diameter of the second hole 284 to be larger than the diameter of the first hole 282, and the cross-sectional area of ​​the second hole 284 in the direction perpendicular to the optical axis 200 is larger than the cross-sectional area of ​​the bracket 70 in the direction perpendicular to the optical axis 200, the bracket 70 and the filter 80 can be accommodated in the light-through hole 28, so as to make full use of the space in the housing 22, so that the miniaturized camera 100 meets the requirements of miniaturized design.

[0080] In this embodiment, the filter 80 can be connected to the bracket 70 by gluing, and the bracket 70 is also provided with an air escape hole 74 that is connected to the storage hole 72 in the bracket 70 and the space outside the bracket 70. In this way, by providing the above-mentioned air escape hole 74 on the bracket 70, the space enclosed by the bracket 70, the filter 80, the circuit board 10, and the reinforcing member 40 can be connected to the external space, ensuring the positive and negative pressure balance in the space enclosed by the bracket 70, the filter 80, the circuit board 10, and the reinforcing member 40, and effectively protecting the normal use of electrical components such as the photosensitive chip 50 in the space enclosed by the bracket 70, the filter 80, the circuit board 10, and the reinforcing member 40.

[0081] It can be understood that in other embodiments, the filter 80 can also be connected to the bracket 70 by gluing with a waterproof and breathable adhesive (not shown), and the waterproof and breathable adhesive can be silicone adhesive or other adhesive that can meet the waterproof and breathable requirements, and the waterproof and breathable adhesive has waterproof and breathable functions. In this way, by providing the above-mentioned waterproof and breathable adhesive, the space enclosed by the bracket 70, the filter 80, the circuit board 10, and the reinforcement 40 is connected to the external space through the waterproof and breathable functions of the waterproof and breathable adhesive.

[0082] In this embodiment, the miniaturized camera 100 further includes an electrical component 90, which is located in the light-through hole 28 and electrically connected to the first surface 12 of the circuit board 10. The electrical component 90 is located on one side of the photosensitive chip 50, wherein the electrical component 90 is, for example, a capacitor, a resistor, etc. The number of electrical components 90 can be multiple. In this way, by arranging the electrical component 90 in the light-through hole 28, the space in the housing 22 can be fully utilized, which helps the miniaturized camera 100 meet the requirements of miniaturized design.

[0083] See also Figure 3, the embodiment of the present application further provides a terminal 1. The terminal 1 includes the miniaturized camera 100 as described in the above embodiment, wherein the terminal 1 may be a mobile phone, and the miniaturized camera 100 may be a front camera of the mobile phone. It can be understood that in other embodiments, the terminal 1 may also be a tablet computer, a car, a security monitor, a smart watch, an AR device, a VR device, a sweeping robot, or other devices with a camera function.

[0084] The terminal 1 mentioned above and its miniaturized camera 100 are configured such that the magnetic force between the reinforcement 40 and the first driving member 24 and the magnetic force between the reinforcement 40 and the second driving member 26 are both smaller than a preset value, such as 0 or slightly greater than 0. Then, there is no magnetic force or the magnetic force is negligible between the reinforcement 40 and the first driving member 24 and between the reinforcement 40 and the second driving member 26. There is substantially no magnetic attraction between the reinforcement 40 and the first driving member 24 and between the reinforcement 40 and the second driving member 26. The reinforcement 40 will not interfere with the electromagnetic drive of the motor assembly 20, effectively preventing the motor assembly 20 from being interfered with by the magnetic attraction of the reinforcement 40, thereby ensuring the driving accuracy of the motor assembly 20 and thereby ensuring the focusing effect of the miniaturized camera 100. In addition, by providing a reinforcing member 40 to enhance the strength of the circuit board 10, and by opening a receiving hole 16 on the circuit board 10 and accommodating at least a portion of the photosensitive chip 50 in the receiving hole 16, it helps to reduce the height of the miniaturized camera 100 along the optical axis 200, so that the miniaturized camera 100 meets the requirements of miniaturized design, thereby enabling the terminal 1 including the miniaturized camera 100 to meet the requirements of lightness and thinness.

[0085] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present application.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person of ordinary skill in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. A miniaturized camera having an optical axis, characterized in that: include: A circuit board, the circuit board having a first surface and a second surface disposed opposite to each other, and the circuit board is provided with a receiving hole penetrating the first surface and the second surface along the direction of the optical axis; A motor assembly, the motor assembly comprising a housing, a first driving member and a second driving member, the housing being disposed on the first surface of the circuit board and surrounding the receiving hole, the housing being provided with a light-through hole extending in the direction of the optical axis, the light-through hole being arranged opposite to the receiving hole, the first driving member being disposed in the housing, the second driving member being arranged in the housing for movement along the direction of the optical axis and opposite to the first driving member, and a magnetic force being generated between the first driving member and the second driving member; A lens is disposed in the light-through hole of the housing and connected to the second driving member, wherein the first driving member drives the second driving member to move along the direction of the optical axis through magnetic force, so that the second driving member drives the lens to move along the direction of the optical axis; a reinforcing member connected to the second surface of the circuit board and covering the receiving hole, wherein the reinforcing member is configured such that the magnetic force between the reinforcing member and the first driving member and the magnetic force between the reinforcing member and the second driving member are both smaller than a preset value; A photosensitive chip, at least a portion of which is accommodated in the accommodation hole and connected to the reinforcing member, and the photosensitive chip is also electrically connected to the circuit board.

2. The miniaturized camera as claimed in claim 1, characterized in that: The side of the photosensitive chip facing away from the reinforcing member is electrically connected to the first side of the circuit board through a plurality of electrical connectors.

3. The miniaturized camera as claimed in claim 1, characterized in that: The miniaturized camera also includes a bracket and a filter, wherein the bracket is arranged on the first surface of the circuit board and around the receiving hole, wherein the shell is also arranged around the bracket, and the bracket is provided with a receiving hole extending along the direction of the optical axis, and the receiving hole is arranged opposite to the receiving hole, and the filter is arranged on the side of the bracket away from the first surface of the circuit board and covers the receiving hole.

4. The miniaturized camera as claimed in claim 3, characterized in that: The light-through hole includes a first hole and a second hole that are continuously connected. The lens is arranged in the first hole, and the bracket and the filter are located in the second hole. The diameter of the second hole is larger than the diameter of the first hole, and the cross-sectional area of ​​the second hole in the direction perpendicular to the optical axis is larger than the cross-sectional area of ​​the bracket in the direction perpendicular to the optical axis.

5. The miniaturized camera as claimed in claim 3, characterized in that: The optical filter is connected to the bracket by gluing, and the bracket is further provided with an air escape hole communicating with the storage hole in the bracket and the space outside the bracket, and / or the optical filter is gluingly connected to the bracket by waterproof and breathable glue.

6. The miniaturized camera as claimed in claim 1, characterized in that: The photosensitive chip is connected to the reinforcing piece by gluing and / or welding.

7. The miniaturized camera as claimed in claim 1, characterized in that: There is a gap between the photosensitive chip and the hole wall of the accommodating hole.

8. The miniaturized camera as claimed in claim 1, characterized in that: The second surface of the circuit board is connected to the reinforcing piece by gluing and / or welding, and the circuit board and the reinforcing piece are electrically connected.

9. The miniaturized camera as claimed in claim 1, characterized in that: The miniaturized camera also includes an electrical component, which is located in the light-through hole and electrically connected to the first surface of the circuit board. The electrical component is located on one side of the photosensitive chip.

10. A terminal, characterized in that: Comprising a miniaturized camera as claimed in any one of claims 1 to 9.

Images