Camera

Abstract

The utility model discloses a camera, which comprises a first shell, a second shell, a lens and a sensor board, and is characterized in that the lens is arranged in a first side of the first shell; the second side of the first shell is provided with an installation structure used for being matched with the sensor plate, so that the sensor plate is preassembled on the second side of the first shell and has alignment adjustment allowance relative to the lens, and the sensor plate is welded and fixed with the installation structure after being aligned with the lens; and the second shell is connected with the second side of the first shell in an involution manner. The lens is fixedly arranged on one side of the first shell, the sensor plate is preassembled on the other side of the first shell through the mounting structure of the first shell and has alignment adjustment allowance relative to the lens, the sensor plate is welded with the mounting structure of the first shell after being aligned, and finally the second shell and the first shell are assembled, so that the lens does not need to be dispensed and cured, and the production efficiency is improved. And the sensor plate does not need to be fixed by screwing a screw, so that the assembly cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of camera manufacturing, in particular to a camera. Background Art

[0002] Currently, some cameras are composed of an upper shell, a lower shell, a lens and a sensor board. To achieve the alignment function, most of the cameras use active optical alignment equipment, that is, the active alignment (Active Alignment Machine, AA) process can adjust all six degrees of freedom of the camera.

[0003] The basic assembly route of the camera is as follows: the sensor board and the upper shell are assembled and fixed by screws, the upper shell is glued, the active optical alignment equipment supports the lens to be actively aligned with the sensor board, the glue is baked at high temperature after active alignment to solidify the lens, and the lower shell and the upper shell are assembled. Among them, the sensor board and the upper shell are assembled and fixed by screw locking, which requires the setting of a separate work station, increasing the production cycle, and the upper shell and the lens are separate components before going online, which need to be glued and cured on the production line, which takes a lot of time and significantly reduces efficiency. In other words, the existing assembly method of the camera is inefficient and costly. Utility Model Content

[0004] In view of this, the utility model provides a camera, which helps to improve the efficiency of camera assembly and reduce assembly costs.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A camera comprises: a first housing, a second housing, a lens and a sensor board.

[0007] The lens is disposed in the first side of the first housing;

[0008] The second side of the first housing is provided with a mounting structure for cooperating with the sensor board, so that the sensor board is pre-installed on the second side of the first housing and has an alignment adjustment margin relative to the lens, and the sensor board is welded and fixed to the mounting structure after being aligned with the lens;

[0009] The second shell is connected to the second side of the first shell.

[0010] Preferably, the mounting structure comprises: a mounting post disposed on the second side of the first housing;

[0011] The sensor board is provided with a mounting hole for cooperating with the mounting post on the second side of the first shell, and the size of the mounting hole is larger than the size of the mounting post so that the sensor board has the alignment adjustment margin relative to the lens. After the sensor board is aligned with the lens, the mounting hole is welded and fixed to the mounting post.

[0012] Preferably, the mounting post is a cylindrical mounting post;

[0013] The mounting hole is a circular mounting hole used to cooperate with the cylindrical mounting column.

[0014] Preferably, the diameter of the circular mounting hole is at least 0.5 mm larger than the diameter of the cylindrical mounting post;

[0015] After the cylindrical mounting post passes through the circular mounting hole, the end thereof protrudes from the circular mounting hole by at least 1 mm.

[0016] Preferably, the number of the mounting posts is three, and they are distributed in pairs in a collinear manner on the second side of the first housing;

[0017] The number of the mounting holes is three, which match the three mounting posts one by one.

[0018] Preferably, the lens and the first housing are an integrated structure;

[0019] Alternatively, the lens is fixed to the first side of the first housing via a fixing member.

[0020] Preferably, the edge of the second side of the first shell has a first mating surface, and the mounting structure is distributed in the middle part of the second side of the first shell;

[0021] The edge of the end surface of the second shell has a second mating surface for matching with the first mating surface of the second side of the first shell, and the second mating surface of the second shell is laser welded to the first mating surface of the first shell.

[0022] Preferably, a limiting column for contacting and cooperating with the inner wall of the second shell is provided in the middle portion of the second side of the first shell;

[0023] The sensor plate is provided with an avoidance structure for cooperating with the limiting column on the second side of the first shell.

[0024] Preferably, the first mating surface is a first Z-shaped mating surface, and the middle surface of the first Z-shaped mating surface is a vertical surface;

[0025] The second mating surface is a second Z-shaped mating surface used to cooperate with the first Z-shaped mating surface, and the middle surface of the second Z-shaped mating surface is a vertical surface.

[0026] Preferably, the middle surface of the first Z-shaped mating surface is interference fit with the middle surface of the second Z-shaped mating surface.

[0027] It can be seen from the above technical solution that the camera provided by the utility model has a lens arranged and fixed on one side of the first shell, and the sensor board is pre-installed on the other side of the first shell through the mounting structure of the first shell, and has an alignment adjustment margin relative to the lens. After the sensor board is aligned, it is welded to the mounting structure of the first shell, and finally the second shell and the first shell are assembled. In this way, there is no need to dispense glue and cure the lens, and there is no need to fix the sensor board with screws, which helps to improve the efficiency of camera assembly and reduce assembly costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 An exploded view of the structure of the camera provided by the embodiment of the utility model;

[0030] Figure 2 Another structural exploded diagram of the camera provided by the embodiment of the utility model;

[0031] Figure 3 A partial structural front view of a camera provided by an embodiment of the utility model;

[0032] Figure 4 A bottom view of the structure of the first housing provided in an embodiment of the utility model;

[0033] Figure 5 A structural front view of a first housing provided in an embodiment of the utility model;

[0034] Figure 6 A bottom view of the structure of the sensor board provided in the embodiment of the utility model;

[0035] Figure 7 A structural front view of a sensor board provided in an embodiment of the utility model;

[0036] Figure 8 A bottom view of the structure of the second housing provided in an embodiment of the utility model;

[0037] Fig. 9A structural front view of a second housing provided in an embodiment of the utility model;

[0038] Fig.10 This is an assembly flow chart of a camera provided in an embodiment of the utility model.

[0039] 10 is the first shell, 11 is the mounting column, 12 is the first mating surface, 121 is the first surface, 122 is the middle surface, 123 is the second surface, 13 is the limiting column, 20 is the second shell, 21 is the second mating surface, 22 is the Fakara mounting hole, 30 is the lens, 40 is the sensor board, 41 is the mounting hole, and 42 is the avoidance groove. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] The camera provided by the embodiment of the utility model is as follows Figure 1 As shown, it includes: a first shell 10, a second shell 20, a lens 30 and a sensor board 40;

[0042] The lens 30 is disposed on the first side of the first housing 10;

[0043] The second side of the first housing 10 is provided with a mounting structure for cooperating with the sensor board 40, so that the sensor board 40 is pre-installed on the second side of the first housing 10 and has an alignment adjustment margin relative to the lens 30, and the sensor board 40 is aligned with the lens 30 and then fixed to the mounting structure by welding;

[0044] The second housing 20 is connected to the second side of the first housing 10 .

[0045] It should be noted that, in the existing cameras, the sensor board is first fixed to the second side of the upper shell by screw locking, the device supports the lens to perform active alignment adjustment relative to the sensor board, and after alignment, the glue is cured so that the lens is bonded and fixed to the first side of the upper shell, and finally the upper shell and the lower shell are assembled; that is, the existing camera first fixes the sensor board, and then installs the lens for alignment adjustment, and after alignment, the glue is cured to fix the lens, and finally the upper and lower shells are assembled. This assembly method has the problems existing in the fixation of the sensor board and the lens mentioned in the background technology above.

[0046] For this reason, the assembly method of the camera of this scheme is different from the existing assembly method, wherein the lens 30 is first arranged and fixed on the first side of the first shell 10 (i.e., the upper shell), and the sensor board 40 is pre-installed on the second side of the first shell 10 through the mounting structure (i.e., the assembly structure), and the sensor board 40 has an alignment adjustment activity relative to the lens 30, and then the sensor board 40 is supported by a device (active optical alignment device) to perform active alignment adjustment relative to the lens 30, that is, the sensor board 40 is actively aligned with the lens 30 as a reference, and after alignment, the sensor board 40 is welded and fixed to the mounting structure, and finally the second shell 20 (i.e., the lower shell) is assembled and connected with the second side of the first shell 10. Among them, the lens 30 and the first shell 10 can be an integrated structure, or the lens 30 is fixed to the first side of the first shell 10 by a fixing member. In addition, if Figure 3 As shown, the first side of the first shell 10 may be the top of the first shell 10 , and the second side may be the bottom of the first shell 10 .

[0047] It can be seen that in this solution, the lens 30 is first fixed, and then the sensor board 40 is pre-installed for alignment adjustment. After alignment, the sensor board 40 is welded and fixed, and finally the second shell 20 and the first shell 10 are assembled. In this way, the lens 30 is set and fixed on the first side of the first shell 10, and there is no need to dispense glue and cure, and there is no need to screw the sensor board 40, which helps to improve the efficiency of camera assembly and reduce assembly costs. Of course, the above-mentioned active alignment adjustment is performed at the AA station of the camera.

[0048] It can be seen from the above technical solution that the camera provided by the embodiment of the utility model has a lens arranged and fixed on one side of the first shell, and the sensor board is pre-installed on the other side of the first shell through the mounting structure of the first shell, and has an alignment adjustment margin relative to the lens. After the sensor board is aligned, it is welded to the mounting structure of the first shell, and finally the second shell and the first shell are assembled. In this way, there is no need to dispense glue and cure the lens, and there is no need to fix the sensor board with screws, which helps to improve the efficiency of camera assembly and reduce assembly costs.

[0049] In this solution, the mounting structure includes: a mounting column 11 disposed on the second side of the first housing 10, and its structure can be referred to Figure 4 and Figure 5 As shown;

[0050] like Figure 6 As shown, the sensor board 40 is provided with a mounting hole 41 for cooperating with the mounting post 11 on the second side of the first housing 10. The cooperating between the mounting post 11 on the second side of the first housing 10 and the mounting hole 41 of the sensor board 40 can be referred to Figure 2As shown, the mounting hole 41 is a through mounting hole, and the size of the mounting hole 41 is larger than the size of the mounting post 11, so that there is a gap between the mounting hole 41 of the sensor board 40 and the mounting post 11 on the second side of the first housing 10, that is, the sensor board 40 has an alignment adjustment margin relative to the lens 30, and the mounting hole 41 is welded and fixed to the mounting post 11 after the sensor board 40 is aligned with the lens 30. In other words, the sensor board 40 (with the mounting hole 41) is pre-installed on the second side of the first housing 10 through the mounting post 11 on the second side of the first housing 10, and the mounting hole 41 and the mounting post 11 have a certain gap, so that the sensor board 40 has an alignment adjustment margin of six degrees of freedom relative to the lens 30, and then the sensor board 40 is aligned and adjusted relative to the lens 30 by the active optical alignment device, and after alignment, the mounting hole of the sensor board 40 is welded and fixed to the mounting post 11 on the second side of the first housing 10, that is, the sensor board 40 is welded and fixed to the mounting post 11 on the second side of the first housing 10. The six degrees of freedom mentioned above include: movement along the X-axis, Y-axis and Z-axis, and rotation around the X-axis, Y-axis and Z-axis, that is, including X, Y, Z, R x , R y , R z .

[0051] That is, the sensor board 40 is pre-installed on the second side of the first housing 10 through the hole column, making the pre-installation of the sensor board 40 easier, and there is a gap between the hole column, so that the sensor board 40 has an alignment adjustment margin relative to the lens 30, and the mounting hole 41 is welded and fixed to the mounting column 11, which can make the welding and fixing of the sensor board 40 to the second side of the first housing 10 more convenient. Of course, this solution can also adopt other mounting structures, such as mounting grooves, which will not be repeated here.

[0052] Specifically, Figure 4 As shown, the mounting column 11 is a cylindrical mounting column;

[0053] like Figure 6 As shown, the mounting hole 41 is a circular mounting hole for cooperating with a cylindrical mounting post. In this way, it is not only convenient to pre-install the sensor board 40 on the second side of the first housing 10, but also convenient to align and adjust the sensor board 40 with respect to the lens 30 in six degrees of freedom.

[0054] Furthermore, if Figure 2 As shown, the diameter of the circular mounting hole is at least 0.5 mm larger than the diameter of the cylindrical mounting post; wherein the diameter of the circular mounting hole minus the diameter of the cylindrical mounting post is ≥ 0.5 mm;

[0055] After the cylindrical mounting post passes through the circular mounting hole, its end protrudes at least 1 mm from the circular mounting hole; that is, the height of the cylindrical mounting post is 1 mm greater than the depth of the circular mounting hole. Figure 7 The height of the cylindrical mounting post is equal to the thickness of the sensor board 40 (as shown in FIG. 1 ), and the height of the cylindrical mounting post is 1 mm greater than the thickness of the sensor board 40, that is, the height of the cylindrical mounting post minus the thickness of the sensor board 40>1 mm. This helps to ensure that the sensor board 40 has an alignment adjustment margin of six degrees of freedom relative to the lens 30, and also facilitates good welding between the mounting hole 41 and the mounting post 11. Of course, the alignment adjustment amount of the sensor board 40 relative to the lens 30 is very small.

[0056] Furthermore, the sensor board 40 is aligned with the lens 30 and then the mounting hole 41 is fixed to the mounting post 11 by laser welding, which can reduce costs and improve production efficiency. That is, after the sensor board 40 is aligned with the lens 30, the mounting hole 41 of the sensor board 40 is fixed to the mounting post 11 on the second side of the first housing 10 by laser welding, wherein the gap between the mounting hole 41 and the mounting post 11 needs to be filled with tin wire / tin ring.

[0057] In this scheme, if Figure 4 As shown, the number of mounting posts 11 is three, and they are arranged in pairs on the second side of the first housing 10 in a collinear manner; Figure 4 As shown, the three mounting posts 11 are distributed in a triangular pattern on the second side of the first housing 10 , that is, they can be connected to form a triangle;

[0058] There are three mounting holes 41, which correspond to the three mounting posts 11. This design facilitates the pre-installation of the sensor board 40 on the second side of the first housing 10, and further facilitates the active optical alignment device to actively align and adjust the sensor board 40.

[0059] Specifically, the lens 30 and the first housing 10 are an integrated structure; wherein the lens 30 and the first housing 10 can be integrally injection molded;

[0060] Alternatively, the lens 30 is fixed to the first side of the first housing 10 by a fixing member. The lens 30 can be fixed to the first side of the first housing 10 by screwing. In this way, the lens 30 and the first housing 10 can be made of an integral material, without the need for gluing and curing, thereby improving the efficiency of camera assembly and reducing assembly costs.

[0061] Furthermore, the second housing 20 is welded to the second side of the first housing 10. In the existing camera, the upper housing and the lower housing are screwed together, such as by screws. In this solution, the second housing 20 is welded to the second side of the first housing 10, which not only helps to improve the camera assembly efficiency, but also facilitates to reduce the assembly cost.

[0062] Furthermore, if Figure 4 As shown, the edge of the second side of the first shell 10 has a first mating surface 12, and the mounting structure is distributed in the middle part of the second side of the first shell 10; wherein, as described above, the second side of the first shell 10 may be the bottom of the first shell 10, and accordingly, the first mating surface 12 is distributed at the edge of the bottom of the first shell 10, and the mounting structure is distributed in the middle part of the bottom of the first shell 10;

[0063] like Fig. 9 As shown, the edge of the end face of the second shell 20 has a second mating surface 21 for matching with the first mating surface 12 on the second side of the first shell 10, and the second mating surface 21 of the second shell 20 is laser welded to the first mating surface 12 of the first shell 10. In other words, the first shell 10 and the second shell 20 are mated through the mating surfaces of the edges, which facilitates the rapid mating of the two, and the second mating surface 21 of the second shell 20 is laser welded to the first mating surface 12 of the first shell 10, so that the fixing method of the two shells is the same as the fixing method of the sensor board 40, which also helps to reduce the assembly cost of the camera. Of course, both the first mating surface 12 and the second mating surface 21 are used as laser welding surfaces.

[0064] To further optimize the above technical solution, Figure 5 As shown, a limiting column 13 is provided at the middle portion of the second side of the first housing 10 for contacting and cooperating with the inner wall (inner side wall) of the second housing 20, so as to facilitate the matching and assembly limiting of the second housing 20;

[0065] The sensor plate 40 is provided with an avoidance structure for cooperating with the limiting column 13 on the second side of the first housing 10. Figure 6 As shown, the avoidance structure can be an avoidance groove 42, and matches the structure of the limit column 13. Figure 5 As shown, there are three limit posts 13 , which are distributed in a triangle on the second side of the first housing 10 . Accordingly, there are also three avoidance grooves 42 , which are matched with the three limit posts 13 in a one-to-one manner.

[0066] In this scheme, if Figure 5 As shown, the first mating surface 12 is a first Z-shaped mating surface, and the middle surface of the first Z-shaped mating surface is a vertical surface;

[0067] The second mating surface 21 is a second Z-shaped mating surface used to cooperate with the first Z-shaped mating surface, and the middle surface of the second Z-shaped mating surface is a vertical surface. The first Z-shaped mating surface and the second Z-shaped mating surface both include: a first surface (close to the outside), a middle surface and a second surface (close to the inside), the first surface and the second surface are both horizontal surfaces, and the middle surface is a vertical surface. The structures of the first surface 121, the middle surface 122 and the second surface 123 of the first Z-shaped mating surface can be referred to Figure 2 That is to say, the first mating surface 12 and the second mating surface 21 adopt a stepped mating surface structure, which facilitates the rapid and accurate mating of the second side of the first shell 10 with the second shell 20. Of course, the middle surface of the first Z-shaped mating surface and the middle surface of the second Z-shaped mating surface can also adopt an adaptive inclined surface.

[0068] Specifically, the middle surface of the first Z-shaped mating surface is interference fit with the middle surface of the second Z-shaped mating surface, so that the second side of the first shell 10 and the second shell 20 can be pre-fixed, and then during laser welding, the second side of the first shell 10 and the second shell 20 are prevented from being slightly offset, thereby avoiding problems such as poor welding quality.

[0069] In addition, it should be noted that, first, at the connection between the first surface of the first Z-shaped mating surface and the first surface of the second Z-shaped mating surface, the two shells (both are metal shells) are melted by laser to form a molten weld, so that the second side of the first shell 10 and the welding point of the second shell 20 are melted into one, achieving the sealing effect required; secondly, during welding, by adjusting the welding power, the connection between the second surface of the first Z-shaped mating surface and the second surface of the second Z-shaped mating surface is controlled not to be melted or not to be melted through, so that the connection can resist welding slag from entering the interior of the shell to avoid pollution. In other words, in this way, the camera shell can have a good welding effect, excellent sealing performance and a long service life. Of course, in order to facilitate welding, the gap between the first surface of the first Z-shaped mating surface and the first surface of the second Z-shaped mating surface is as small as possible, and the gap between the second surface of the first Z-shaped mating surface and the second surface of the second Z-shaped mating surface is as small as possible.

[0070] That is to say, the first mating surface 12 on the second side of the first shell 10 and the second mating surface 21 of the second shell 20 adopt a Z-shaped interference fit design, which can enable the second side of the first shell 10 and the second shell 20 to achieve better mating, reduce the problem of loosening and offset during assembly, and prevent welding slag generated by laser welding from entering the internal device of the camera and contaminating it. It also has a longer sealing service life.

[0071] In addition, to better understand the assembly method of the camera in this solution, Fig.10 As shown, the assembly process is described as follows:

[0072] The lens and the first shell are transferred to the AA station by the transmission module, and then the lens and the first shell are fixedly installed at the AA station; wherein the lens and the first shell are integrally supplied;

[0073] The sensor board to be installed is transferred to the AA station by the transmission module;

[0074] The sensor board is pre-installed on the first housing through the mounting column, and then the sensor board is actively aligned by the active optical alignment device to adjust the position of the sensor board;

[0075] Fix the mounting column and the mounting hole of the sensor board by laser welding;

[0076] Assemble the first shell and the second shell, connect the first shell and the second shell by laser welding, limit the first shell by the limit column, and reserve the second shell with the Falcarra installation hole 22 (such as Figure 8 The mounting hole is used as a connection window for vehicle assembly.

[0077] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0078] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A camera, comprising: The first housing (10), the second housing (20), the lens (30) and the sensor board (40) are characterized in that: The lens (30) is arranged in the first side of the first housing (10); The second side of the first housing (10) is provided with a mounting structure for cooperating with the sensor board (40), so that the sensor board (40) is pre-installed on the second side of the first housing (10) and has an alignment adjustment margin relative to the lens (30), and the sensor board (40) is welded and fixed to the mounting structure after being aligned with the lens (30); The second shell (20) is connected to the second side of the first shell (10).

2. The camera according to claim 1, characterized in that: The mounting structure comprises: a mounting column (11) arranged on the second side of the first housing (10); The sensor board (40) is provided with a mounting hole (41) for cooperating with the mounting post (11) on the second side of the first housing (10); the size of the mounting hole (41) is larger than the size of the mounting post (11), so that the sensor board (40) has the alignment adjustment margin relative to the lens (30); after the sensor board (40) is aligned with the lens (30), the mounting hole (41) is fixed to the mounting post (11) by welding.

3. The camera according to claim 2, characterized in that: The mounting column (11) is a cylindrical mounting column; The mounting hole (41) is a circular mounting hole used to cooperate with the cylindrical mounting column.

4. The camera according to claim 3, characterized in that: The diameter of the circular mounting hole is at least 0.5 mm larger than the diameter of the cylindrical mounting post; After the cylindrical mounting post passes through the circular mounting hole, the end thereof protrudes from the circular mounting hole by at least 1 mm.

5. The camera according to any one of claims 2 to 4, characterized in that: The number of the mounting posts (11) is three, and they are arranged in pairs on the second side of the first housing (10) in a collinear manner; The number of the mounting holes (41) is three, which are matched one by one with the three mounting columns (11).

6. The camera according to claim 1, characterized in that: The lens (30) and the first housing (10) are an integrated structure; Alternatively, the lens (30) is fixed inside the first side of the first housing (10) via a fixing member.

7. The camera according to claim 1, characterized in that: The edge of the second side of the first shell (10) has a first mating surface (12), and the mounting structure is distributed in the middle part of the second side of the first shell (10); The edge of the end surface of the second shell (20) has a second mating surface (21) for cooperating with the first mating surface (12) on the second side of the first shell (10), and the second mating surface (21) of the second shell (20) is laser welded to the first mating surface (12) of the first shell (10).

8. The camera according to claim 7, characterized in that: A limiting column (13) is provided in the middle portion of the second side of the first shell (10) for contacting and cooperating with the inner wall of the second shell (20); The sensor plate (40) is provided with an avoidance structure for cooperating with a limiting column (13) on the second side of the first shell (10).

9. The camera according to claim 7, characterized in that: The first mating surface (12) is a first Z-shaped mating surface, and the middle surface of the first Z-shaped mating surface is a vertical surface; The second mating surface (21) is a second Z-shaped mating surface used to cooperate with the first Z-shaped mating surface, and the middle surface of the second Z-shaped mating surface is a vertical surface.

10. The camera according to claim 9, characterized in that: The middle surface of the first Z-shaped mating surface is interference fit with the middle surface of the second Z-shaped mating surface.

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