Glue injection structure of camera module

Abstract

The invention belongs to the technical field of camera shooting equipment, and discloses a glue injection structure of a camera shooting module, which comprises a glue injection passage, a guide groove, a capillary passage and a glue overflow groove. And a plurality of glue injection passages, guide grooves and glue overflow grooves are arranged. The multiple glue injection channels are arranged in the circumferential direction of the base at intervals, glue injection openings of the glue injection channels are located in the end, away from the magnet assembly, of the base, glue outlets of the glue injection channels face the inner wall of the shielding cover, the multiple guide grooves are formed in the periphery of the base at intervals and communicate with the multiple glue outlets one to one, and the outlet ends of the guide grooves face the inner wall of the shielding cover. The capillary channel is arranged between the shielding cover and the base and communicated with the guide grooves, the multiple glue overflowing grooves are formed in the periphery of the base at intervals and communicated with the multiple glue outlets in a one-to-one mode, and the outlet ends of the glue overflowing grooves face the magnet assembly. By means of the arrangement, the glue injection structure of the camera module can facilitate glue dispensing operation of the camera module, and the glue dispensing effect and the working efficiency are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of camera equipment, and in particular to a glue injection structure of a camera module. Background Art

[0002] A camera module refers to a modular product that integrates components such as lenses, image sensors, digital signal processors, VCM motors, IR filters, circuit boards, etc. It is widely used in mobile phones, computers, security monitoring, smart homes and other fields, bringing convenience to people's lives and work.

[0003] At present, in order to facilitate the mass production of camera modules, a flipping device is generally required to flip the camera module, and a glue dispensing device is used to seal the camera module all around. Specifically, the prior art requires four sets of flipping devices and glue dispensing devices during glue dispensing to achieve full-circle glue sealing of the camera module. During the glue dispensing process, multiple workstations need to be set up and the camera module needs to be flipped multiple times, which makes the entire glue dispensing operation more complicated and requires more steps to complete the glue dispensing, thereby reducing the operating efficiency; and because the structure of the camera module is relatively integrated, the operating space for glue dispensing is relatively limited, making it difficult to ensure the glue dispensing effect. Summary of the invention

[0004] The object of the present invention is to provide a glue injection structure for a camera module, which can facilitate the glue dispensing operation of the camera module and improve the glue dispensing effect and operating efficiency.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A glue injection structure of a camera module, the camera module comprises a base, a magnet assembly fixed on the base, a movable assembly movably arranged on the base, a lens mounted on the movable assembly, and a shielding cover arranged on the base, the magnet assembly and the movable assembly are both located in the mounting cavity of the shielding cover, and the glue injection structure of the camera module comprises:

[0007] A plurality of glue injection passages are arranged at intervals along the circumference of the base, the glue injection port of each of the glue injection passages is located at an end of the base away from the magnet assembly, and the glue outlet of each of the glue injection passages faces the inner wall of the shielding cover;

[0008] A plurality of guide grooves are arranged at intervals on the outer periphery of the base, and are respectively connected to the plurality of glue outlets one by one, and the outlet ends of the guide grooves face the inner wall of the shielding cover;

[0009] A capillary passage is provided between the shielding cover and the base, and the capillary passage is communicated with each of the guide grooves;

[0010] A plurality of overflow glue grooves are arranged at intervals on the outer periphery of the base and are respectively connected to the plurality of glue outlets one by one, and the outlet ends of the overflow glue grooves face the magnet assembly.

[0011] Optionally, a buffer step is provided in the glue injection passage, and the buffer step is provided at an angle to an extension direction of the glue injection passage.

[0012] Optionally, a plurality of the buffer steps are provided, and the plurality of the buffer steps are spaced apart along the extension direction of the glue injection passage, and the areas of the plurality of the buffer steps decrease sequentially in the direction from the glue injection port to the glue outlet.

[0013] Optionally, the opening size of the guide groove gradually increases from the inner wall far away from the shielding cover to the inner wall close to the shielding cover.

[0014] Optionally, the glue overflow groove is provided with a diameter expansion portion, and the outlet end of the glue overflow groove is arranged at the diameter expansion portion.

[0015] Optionally, a glue pouring groove is provided on the outer peripheral wall of the base, the outlet end of the glue pouring groove faces the inner wall of the shielding cover, and the glue pouring groove and the inner wall of the shielding cover are surrounded to form a glue pouring passage.

[0016] Optionally, a step portion is provided in the glue pouring groove, and the step portion is arranged at an angle to the extension direction of the glue pouring groove.

[0017] Optionally, a guide portion is further provided in the glue-filling groove, and the guide portion gradually approaches the inner wall of the shielding cover toward the direction approaching the magnet assembly.

[0018] Optionally, a plurality of the glue pouring grooves are provided, and the plurality of the glue pouring grooves are spaced apart along the circumference of the base.

[0019] Optionally, a first avoidance opening is provided on the base, and a second avoidance opening is provided on the shielding cover; the movable component includes a movable frame and a coil component wound on the movable frame, a third avoidance opening is provided on the movable frame, and the magnet component is arranged around the coil component; the front end of the lens passes through the third avoidance opening and the second avoidance opening in sequence, and the rear end of the lens is exposed from the first avoidance opening.

[0020] Beneficial effects of the present invention:

[0021] The present invention provides a glue injection structure of a camera module, the camera module includes a base, a magnet assembly fixed on the base, a movable assembly movably arranged on the base, a lens installed on the movable assembly, and a shielding cover covered on the base, the magnet assembly and the movable assembly are both located in the mounting cavity of the shielding cover, and the glue injection structure of the camera module includes a glue injection passage, a guide groove, a capillary passage, and a glue overflow groove, so as to achieve full-circle glue sealing of the glue injection structure of the camera module and improve the glue dispensing effect. Among them, a plurality of glue injection passages, guide grooves, and glue overflow grooves are respectively provided. The plurality of glue injection passages are arranged at intervals along the circumference of the base, which can ensure that the glue is evenly distributed in the circumference of the base, thereby ensuring the glue dispensing effect between the base and other components, and improving the overall structural strength of the camera module. The glue injection ports of each glue injection passage are located at one end of the base away from the magnet assembly, and there is no need to flip the camera module, so as to improve the convenience of the glue dispensing operation. The glue outlet of each glue injection passage faces the inner wall of the shielding cover, ensuring that the glue can reach the shielding cover through the glue outlet, thereby improving the connection strength between the base and the shielding cover. A plurality of guide grooves are arranged at intervals on the outer periphery of the base, and are respectively connected to the plurality of glue outlets one by one. The outlet end of the guide groove faces the inner wall of the shielding cover, which can ensure that the glue can fully cover the inner wall of the shielding cover, thereby improving the glue dispensing effect between the base and the shielding cover. The capillary passage is arranged between the shielding cover and the base, and the capillary passage is connected to each guide groove, so that the glue in the guide groove can reach the capillary passage under the capillary action, thereby further improving the glue dispensing effect. A plurality of overflow glue grooves are arranged at intervals on the outer periphery of the base, and are respectively connected to the plurality of glue outlets one by one. The outlet end of the overflow glue groove faces the magnet assembly, so that the glue in the glue injection passage can reach the magnet assembly through the overflow glue groove to achieve bonding and fixation, thereby ensuring the glue dispensing effect. Through the above-mentioned arrangement, the glue injection structure of the camera module of the present application can facilitate the glue dispensing operation of the camera module, thereby improving the glue dispensing effect and operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a first isometric diagram of a camera module provided by an embodiment of the present invention;

[0023] Figure 2 is a second isometric diagram of the camera module provided by an embodiment of the present invention;

[0024] Figure 3 is a top view of a camera module provided by an embodiment of the present invention;

[0025] Figure 4 is an exploded diagram of a camera module provided by an embodiment of the present invention;

[0026] Figure 5 is a cross-sectional view of a camera module provided by an embodiment of the present invention;

[0027] Figure 6 yes Figure 5A partial enlarged view of the center

[0028] Figure 7 is a first axonometric view of a base provided by an embodiment of the present invention;

[0029] Figure 8 yes Figure 7 A partial enlarged view of point B in the middle;

[0030] Fig. 9 is a second axonometric view of a base provided by an embodiment of the present invention;

[0031] Fig.10 yes Fig. 9 A partial enlarged view of point C in the middle;

[0032] Fig.11 is a third axonometric view of the base provided by an embodiment of the present invention;

[0033] Fig.12 yes Fig.11 A partial enlarged view of point D in the middle.

[0034] In the figure:

[0035] 1. Shielding cover; 11. Installation cavity; 12. Assembly port; 2. Magnet assembly; 3. Base; 31. Glue injection passage; 311. Glue injection port; 312. Glue outlet; 32. Glue overflow groove; 321. Expansion portion; 33. Buffer step; 34. Guide groove; 35. Capillary passage; 36. Glue filling groove; 361. Glue filling passage; 362. Step portion; 363. Guide portion; 4. Movable assembly; 5. Lens. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0037] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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 or an electrical connection; 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 the present invention can be understood according to specific circumstances.

[0038] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0039] In the description of this embodiment, the terms "upper", "lower", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0040] like Figure 1-Figure 12 As shown, this embodiment provides a glue injection structure of a camera module, the camera module includes a base 3, a magnet assembly 2 fixed on the base 3, a movable assembly 4 movably arranged on the base 3, a lens 5 installed on the movable assembly 4, and a shielding cover 1 covered on the base 3, the magnet assembly 2 and the movable assembly 4 are both located in the installation cavity 11 of the shielding cover 1, and the glue injection structure of the camera module includes a glue injection passage 31, a guide groove 34, a capillary passage 35 and a glue overflow groove 32. Among them, the glue injection passage 31, the guide groove 34 and the glue overflow groove 32 are respectively provided with a plurality. A plurality of glue injection passages 31 are arranged at intervals along the circumference of the base 3, and a glue injection port 311 of each glue injection passage 31 is located at the end of the base 3 away from the magnet assembly 2, and a glue outlet 312 of each glue injection passage 31 is facing the inner wall of the shielding cover 1. A plurality of guide grooves 34 are arranged at intervals on the outer periphery of the base 3, and are respectively connected with the plurality of glue outlets 312 one by one, and an outlet end of the guide groove 34 faces the inner wall of the shielding cover 1. A capillary passage 35 is arranged between the shielding cover 1 and the base 3, and the capillary passage 35 is connected with each guide groove 34. A plurality of glue overflow grooves 32 are arranged at intervals on the outer periphery of the base 3, and are respectively connected with the plurality of glue outlets 312 one by one, and an outlet end of the glue overflow groove 32 faces the magnet assembly 2.

[0041] In this embodiment, a glue injection structure is provided to facilitate the full-circle sealing of the camera module and improve the glue dispensing effect. The glue injection structure includes a glue injection passage 31, a guide groove 34, a capillary passage 35 and a glue overflow groove 32. Among them, a plurality of glue injection passages 31, a guide groove 34 and a glue overflow groove 32 are respectively provided. Multiple glue injection passages 31 are arranged at intervals along the circumference of the base 3, which can ensure that the glue is evenly distributed in the circumference of the base 3, thereby ensuring the glue dispensing effect between the base 3 and other components, and improving the overall structural strength of the camera module. The glue injection port 311 of each glue injection passage 31 is located at one end of the base 3 away from the magnet assembly 2, and there is no need to flip the camera module to improve the convenience of the glue dispensing operation. The glue outlet 312 of each glue injection passage 31 is facing the inner wall of the shielding cover 1, ensuring that the glue can reach the shielding cover 1 through the glue outlet 312, thereby improving the connection strength between the base 3 and the shielding cover 1. A plurality of guide grooves 34 are arranged at intervals on the periphery of the base 3, and are respectively connected to a plurality of glue outlets 312 one by one. The outlet end of the guide groove 34 faces the inner wall of the shielding cover 1, which can ensure that the glue can fully cover the inner wall of the shielding cover 1, thereby improving the glue dispensing effect between the base 3 and the shielding cover 1. The capillary passage 35 is arranged between the shielding cover 1 and the base 3, and the capillary passage 35 is connected to each guide groove 34, so that the glue in the guide groove 34 can reach the capillary passage 35 under the capillary action, thereby further improving the glue dispensing effect. A plurality of overflow glue grooves 32 are arranged at intervals on the periphery of the base 3, and are respectively connected to a plurality of glue outlets 312 one by one. The outlet end of the overflow glue groove 32 faces the magnet assembly 2, so that the glue in the glue injection passage 31 can reach the magnet assembly 2 through the overflow glue groove 32 to achieve bonding and fixing, thereby ensuring the glue dispensing effect. Through the above arrangement, the glue injection structure of the camera module of this embodiment can facilitate the glue dispensing operation of the camera module, and improve the glue dispensing effect and operation efficiency.

[0042] The specific structure of the glue injection structure of the camera module is described below:

[0043] Specifically, Figure 3-Figure 8 As shown, a buffer step 33 is provided in the glue injection passage 31, and the buffer step 33 is provided at an angle to the extension direction of the glue injection passage 31. When the glue flows onto the buffer step 33, the flow speed of the glue can be slowed down, so that the glue can flow more smoothly in the glue injection passage 31 and be distributed more evenly, thereby improving the glue dispensing effect.

[0044] More specifically, a plurality of buffer steps 33 are provided, and the plurality of buffer steps 33 are arranged at intervals along the extension direction of the glue injection passage 31, which can gradually slow down the flow speed of the glue, and further improve the uniform diffusion of the glue in the glue injection passage 31. From the glue injection port 311 to the glue outlet 312, the area of ​​the plurality of buffer steps 33 decreases successively, which can optimize the flow path of the glue, ensure that the glue can accurately flow to the glue outlet 312, and thus improve the glue dispensing effect. Moreover, inclined surfaces are provided between the buffer steps 33 to facilitate the flow and diffusion of the glue.

[0045] Specifically, Figure 5-Figure 10 As shown, the opening size of the guide groove 34 gradually increases from the inner wall far away from the shielding cover 1 to the inner wall close to the shielding cover 1. As the opening size of the guide groove 34 gradually increases, the glue can flow more smoothly to the inner wall of the shielding cover 1 and achieve a large area coverage, which is beneficial to improve the glue dispensing effect between the base 3 and the shielding cover 1.

[0046] Specifically, the overflow glue groove 32 is provided with an expansion portion 321, and the outlet end of the overflow glue groove 32 is arranged at the expansion portion 321. When the glue passes through the expansion portion 321, due to the increase in the opening size of the expansion portion 321, the flow direction of the glue will be adjusted and dispersed to a certain extent, which helps the glue to be more evenly diffused between the base 3 and the magnet assembly 2, thereby improving the glue dispensing effect.

[0047] Specifically, Figure 1-Figure 12 As shown, a glue pouring groove 36 is opened on the outer wall of the base 3, and the outlet end of the glue pouring groove 36 faces the inner wall of the shielding cover 1. The glue pouring groove 36 and the inner wall of the shielding cover 1 are surrounded to form a glue pouring passage 361, which ensures that the glue can be diffused along the extension direction of the glue pouring passage 361, thereby ensuring a firm connection between the base 3 and the shielding cover 1.

[0048] More specifically, a step portion 362 is provided in the glue pouring groove 36, and the step portion 362 is set at an angle to the extension direction of the glue pouring groove 36. By setting the step portion 362, the flow rate of the glue can be gradually slowed down during the flow process, which can not only reduce the bubbles generated by the glue during the flow process and improve the gluing effect, but also increase the contact area between the glue and the base 3, which is beneficial to improve the connection strength.

[0049] More specifically, a guide portion 363 is further provided in the glue pouring groove 36. Towards the direction approaching the magnet assembly 2, the guide portion 363 gradually approaches the inner wall of the shielding cover 1, ensuring that the glue can gradually approach the magnet assembly 2 along the guide portion 363 during the flow process, thereby improving the accuracy and uniformity of filling.

[0050] Specifically, a plurality of glue pouring grooves 36 are provided, and the plurality of glue pouring grooves 36 are arranged at intervals along the circumference of the base 3 , thereby increasing the contact area between the glue and other components, thereby improving the connection strength between the base 3 and the shielding cover 1 .

[0051] Specifically, Figure 1-Figure 4 As shown, the base 3 is provided with a first avoidance opening, and the shielding cover 1 is provided with a second avoidance opening. By providing the first avoidance opening and the second avoidance opening, sufficient space is provided for the lens 5 to ensure that the lens 5 can be normally installed and the focal length can be adjusted. The movable component 4 includes a movable frame and a coil component wound on the movable frame. The movable frame is provided with a third avoidance opening. The magnet component 2 is arranged around the coil component to ensure the normal use of the camera module. The front end of the lens 5 passes through the third avoidance opening and the second avoidance opening in turn, and the rear end of the lens 5 is exposed at the first avoidance opening, thereby ensuring the compactness and reliability of the overall structure of the camera module. Among them, the magnet component 2 includes a plurality of magnet blocks, and the plurality of magnet blocks are arranged at intervals around the coil component. Through the interaction between the plurality of magnet blocks and the coil component, the moving direction and distance of the lens 5 can be accurately controlled, thereby realizing functions such as autofocus and optical image stabilization.

[0052] More specifically, an assembly opening 12 is provided on the shielding cover 1, and the assembly opening 12 and the second avoidance opening are respectively arranged at two ends of the shielding cover 1 facing each other, and the base 3 is connected to the assembly opening 12 to facilitate the mutual assembly of the base 3, the lens 5, the movable component 4, the magnet component 2 and the shielding cover 1, thereby improving the compactness of the overall structure of the camera module.

[0053] Moreover, if Figure 1-Figure 12 As shown, by pouring glue into the glue injection passage 31, and with the help of the overflow groove 32, the guide groove 34 and the capillary passage 35, the base 3, the magnet assembly 2 and the shielding cover 1 are bonded respectively, thereby avoiding additional glue dispensing operations on the magnet assembly 2, reducing the number of glue dispensing operations, and the glue will not flow onto the movable assembly 4 and the lens 5, thereby improving the glue dispensing effect and operating efficiency.

[0054] It should be noted that the glue in this embodiment includes but is not limited to epoxy resin, UV glue and AB glue, etc. As long as the glue dispensing effect between the base 3, the magnet assembly 2 and the shielding cover 1 can be ensured, the specific material of the glue is not too limited.

[0055] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A glue injection structure of a camera module, the camera module comprising a base (3), a magnet assembly (2) fixed on the base (3), a movable assembly (4) movably arranged on the base (3), a lens (5) mounted on the movable assembly (4), and a shielding cover (1) covered on the base (3), the magnet assembly (2) and the movable assembly (4) are both located in a mounting cavity (11) of the shielding cover (1), characterized in that: The glue injection structure of the camera module includes: A plurality of glue injection passages (31) are arranged at intervals along the circumference of the base (3), the glue injection port (311) of each of the glue injection passages (31) is located at an end of the base (3) away from the magnet assembly (2), and the glue outlet (312) of each of the glue injection passages (31) faces the inner wall of the shielding cover (1); A plurality of guide grooves (34) are arranged at intervals on the outer periphery of the base (3), and are respectively connected to the plurality of glue outlets (312) one by one, and the outlet ends of the guide grooves (34) face the inner wall of the shielding cover (1); A capillary passage (35) is provided between the shielding cover (1) and the base (3), and the capillary passage (35) is connected to each of the guide grooves (34); A plurality of overflow glue grooves (32) are arranged at intervals on the outer periphery of the base (3) and are respectively connected one by one with the plurality of glue outlets (312), and the outlet ends of the overflow glue grooves (32) face the magnet assembly (2).

2. The glue injection structure of the camera module according to claim 1, characterized in that: A buffer step (33) is provided in the glue injection passage (31), and the buffer step (33) is arranged at an angle with the extension direction of the glue injection passage (31).

3. The glue injection structure of the camera module according to claim 2, characterized in that: A plurality of the buffer steps (33) are provided, and the plurality of the buffer steps (33) are arranged at intervals along the extension direction of the glue injection passage (31), and the areas of the plurality of the buffer steps (33) decrease in sequence from the glue injection port (311) to the glue outlet (312).

4. The glue injection structure of the camera module according to claim 1, characterized in that: The opening size of the guide groove (34) gradually increases from the inner wall away from the shielding cover (1) to the inner wall close to the shielding cover (1).

5. The glue injection structure of the camera module according to claim 1, characterized in that: The glue overflow groove (32) is provided with a diameter expansion portion (321), and the outlet end of the glue overflow groove (32) is arranged at the diameter expansion portion (321).

6. The glue injection structure of the camera module according to any one of claims 1 to 5, characterized in that: A glue pouring groove (36) is provided on the outer peripheral wall of the base (3), the outlet end of the glue pouring groove (36) faces the inner wall of the shielding cover (1), and the glue pouring groove (36) and the inner wall of the shielding cover (1) are surrounded to form a glue pouring passage (361).

7. The glue injection structure of the camera module according to claim 6, characterized in that: A step portion (362) is provided in the glue pouring groove (36), and the step portion (362) is arranged at an angle with the extension direction of the glue pouring groove (36).

8. The glue injection structure of the camera module according to claim 7, characterized in that: A guide portion (363) is also provided in the glue pouring groove (36), and in a direction approaching the magnet assembly (2), the guide portion (363) gradually approaches the inner wall of the shielding cover (1).

9. The glue injection structure of the camera module according to claim 6, characterized in that: A plurality of the glue pouring grooves (36) are provided, and the plurality of the glue pouring grooves (36) are arranged at intervals along the circumference of the base (3).

10. The glue injection structure of the camera module according to claim 1, characterized in that: The base (3) is provided with a first avoidance opening, and the shielding cover (1) is provided with a second avoidance opening; the movable component (4) comprises a movable frame and a coil component wound on the movable frame, the movable frame is provided with a third avoidance opening, and the magnet component (2) is arranged around the coil component; the front end of the lens (5) passes through the third avoidance opening and the second avoidance opening in sequence, and the rear end of the lens (5) is exposed at the first avoidance opening.

Images