Vehicle-mounted camera and method for manufacturing the same

Abstract

To provide an imaging apparatus capable of improving noise resistance performance, a shield, and a method for manufacturing the imaging apparatus.SOLUTION: The imaging apparatus includes a lens unit, a substrate, a housing, and a shield. The lens unit includes a lens barrel in which a lens is arranged. An imaging element which is arranged on the emission side of light from the lens barrel and receives the light is mounted on the substrate. The housing stores the lens unit and the substrate. The shield is provided to face a first surface on which the imaging element is mounted among surfaces possessed by the substrate, in the housing.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to In-vehicle cameras, Call In-vehicle cameras The present invention relates to a method for producing the same. [Background technology]

[0002] As sensors become more sophisticated, imaging devices such as vehicle-mounted cameras are required to have both noise resistance and heat dissipation. From the viewpoint of noise resistance of the imaging device, a shield is disposed inside the camera case, which is an example of a plastic housing. For example, Patent Document 1 discloses a technology for covering the sides and bottom of the substrate of the imaging device with a shield. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6234572 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the technology described in Patent Document 1, a lens is placed directly above the sensor, and while the sides and bottom of the board inside the imaging device can be covered with a shield, the top surface of the board is not covered with a shield, making it difficult to suppress noise from the top side of the board.

[0005] The present disclosure can improve noise resistance performance In-vehicle cameras, Call In-vehicle cameras The present invention provides a method for producing the above-mentioned compound. [Means for solving the problem]

[0006] The present disclosure In-vehicle cameras a lens unit; An imaging element; The lens unit includes a substrate, a housing, and a shield. The lens unit includes a lens barrel in which a lens is disposed. Image sensoris disposed on the light output side of the lens barrel and receives the light. The substrate is The image sensor The support has a first surface disposed opposite the first surface, a second surface opposite the first surface, and a side portion disposed between the first surface and the second surface. The housing is At least some Lens unit Contact with The board is stored in the case. The shield is placed inside the case. To be placed . The shield has a bottom surface portion, at least a portion of which faces the second surface of the substrate, and four side surfaces erected from the bottom surface portion and facing the side surfaces of the substrate, each of the four side surfaces of the shield extending obliquely from the side of the substrate toward a position facing the first surface of the substrate. Effect of the Invention

[0007] The present disclosure In-vehicle cameras, Call In-vehicle cameras According to the manufacturing method of In-vehicle cameras The noise resistance performance can be improved. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is an exploded view of an on-vehicle camera which is an example of an imaging device according to a first embodiment. [Diagram 2] FIG. 2 is a schematic diagram of a vertical cross section of the vehicle-mounted camera according to the first embodiment. [Diagram 3] FIG. 3 is a schematic diagram of a vertical cross section of the vehicle-mounted camera according to the first embodiment. [Figure 4] FIG. 4 is a perspective cross-sectional view of the vehicle-mounted camera according to the first embodiment. [Diagram 5] FIG. 5 is a flowchart showing an example of the flow of the manufacturing method for the vehicle-mounted camera according to the first embodiment. [Figure 6] FIG. 6 is a schematic vertical cross-sectional view for explaining an example of a method for manufacturing the vehicle-mounted camera according to the second embodiment. [Figure 7] FIG. 7 is a perspective cross-sectional view of the vehicle-mounted camera according to the third embodiment. [Figure 8] FIG. 8 is a perspective cross-sectional view of the vehicle-mounted camera according to the third embodiment. [Figure 9] FIG. 9 is a perspective view of a camera case provided in the vehicle-mounted camera according to the third embodiment. [Figure 10] FIG. 10 is a diagram for explaining an example of a welding structure between a lens substrate ASSY, a camera case, and a welding ring in a conventional vehicle-mounted camera. [Figure 11] FIG. 11 is a diagram for explaining an example of a welding structure between the lens substrate ASSY, the camera case, and the welding ring in the vehicle-mounted camera according to the third embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, embodiments of an imaging device, a shield, and a method for manufacturing an imaging device according to the present disclosure will be described with reference to the drawings.

[0010] (First embodiment) First, an example of the configuration of an imaging device according to the present embodiment will be described with reference to Figs. 1 to 4. Fig. 1 is an exploded view of an on-vehicle camera which is an example of an imaging device according to the first embodiment. Fig. 2 is a schematic view of a vertical section of the on-vehicle camera according to the first embodiment. Fig. 3 is a schematic view of a vertical section of the on-vehicle camera according to the first embodiment. Fig. 4 is a perspective cross-sectional view of the on-vehicle camera according to the first embodiment.

[0011] An in-vehicle camera 10, which is an example of an imaging device according to this embodiment, includes a lens substrate ASSY1, a camera case 3, a heat dissipation member 4, a shield 5, and a substrate 6, as shown in FIGS.

[0012] The lens substrate ASSY1 is an example of a lens unit having a lens barrel 11 and a lens 12. The lens 12 is disposed inside the lens barrel 11. The lens barrel 11 may be formed using, for example, a resin material.

[0013] In this embodiment, the lens substrate ASSY1 has a cover 13 that covers the periphery of the lens barrel 11. The cover 13 may be formed using a resin material. In this embodiment, the entire cover 13 is formed using a resin material, but it is sufficient that at least the portion that comes into contact with an upper end 5i of a shield 5, which will be described later, when the substrate 6 is inserted into the camera case 3 is formed of a resin material.

[0014] The substrate 6 is attached to the lens substrate ASSY1 by an adhesive 2. In this embodiment, an adhesive having the property of being hardened by at least a heat treatment can be used as the adhesive 2. In order to attach the substrate 6 to the lens substrate ASSY1 with high precision, in other words, for optical adjustment between the lens barrel 11 (lens 12) and the imaging element 7, it is preferable that the adhesive 2 has the property of being temporarily hardened by, for example, ultraviolet (UV) irradiation prior to being fully hardened by a heat treatment.

[0015] Therefore, in this embodiment, it is preferable that the adhesive 2 is cured through a two-stage process of provisional curing by UV irradiation and final curing by heat treatment. For example, the adhesive 2 may be an adhesive containing an epoxy resin. This makes it possible to prevent the positional relationship between the lens barrel 11 and the image sensor 7 from shifting after provisional curing and before final curing.

[0016] The substrate 6 is disposed on the light emission side from the lens barrel 11, and is an example of a substrate on which the imaging element 7 is mounted. The imaging element 7 is, for example, a CMOS (Complementary MOS) or a CCD (Charge Coupled Device), and is an example of an imaging element that receives light that has passed through the lens 12. The imaging element 7 also converts the received light into a video signal. In this embodiment, the corners of the substrate 6 are fixed to the lens substrate ASSY 1 via an adhesive 2.

[0017] The camera case 3 is an example of a housing that houses the lens substrate ASSY1 and the substrate 6. In this embodiment, the camera case 3 has an opening 34. Here, the opening 34 is an example of an opening that allows the substrate 6 to be inserted into the camera case 3 and is closed by the lens substrate ASSY1.

[0018] In this embodiment, the camera case 3 is a box-shaped housing that is open at the top. Specifically, the camera case 3 has an end wall 31 and a peripheral wall 32. The end wall 31 is formed in a substantially rectangular plate shape that is substantially perpendicular to the optical axis of the lens 12. The peripheral wall 32 is formed in a rectangular box shape that is substantially parallel to the optical axis of the lens 12. The camera case 3 also has an abutment surface 33 that abuts against the lens substrate ASSY1 when the substrate 6 is stored in the camera case 3.

[0019] The shield 5 is provided inside the camera case 3. The substrate 6 is housed inside the shield 5. The shield 5 is an example of a shield that covers the substrate 6. In other words, the shield 5 is provided to face the upper surface 6a, the side portion 6c, and the lower surface 6b of the substrate 6. Specifically, the shield 5 has a plurality of shield parts 5a to 5e. The shield part 5e is provided to face the lower surface 6b, which is an example of a second surface of the substrate 6, opposite to the upper surface 6a, which is an example of a first surface on which the imaging element 7 is mounted. The shield parts 5a to 5d stand upright from the shield part 5e and are provided to face the side portion 6c and the upper surface 6a of the substrate 6.

[0020] In this embodiment, the shield parts 5a to 5d extend in a direction perpendicular to the upper surface 6a of the substrate 6, in other words, in the x direction, which is an example of a first direction perpendicular to a surface of the substrate 6. The shield parts 5a to 5d are provided so as to extend obliquely from a side part 6c, which is a side edge of the substrate 6, toward a position facing the upper surface 6a. That is, the shield parts 5a to 5d are provided so as to extend obliquely from the side part 6c toward the optical axis of the lens substrate ASSY1 (lens 12) in a state in which the lens substrate ASSY1 and the substrate 6 are inserted into the camera case 3. Furthermore, the length of the shield parts 5a to 5d in the x direction is longer than the inner dimension L of the camera case 3 that covers the side part 6c of the substrate 6 in the x direction.

[0021] In this embodiment, the shield parts 5c and 5d are an example of a first shield pair that is a plate-like member arranged opposite to each other. The shield parts 5a and 5b are an example of a second shield pair that is a plate-like member arranged opposite to each other. It is preferable that the shield parts 5a and 5b are inclined toward the inside of the camera case 3 more than the shield parts 5c and 5d. Furthermore, the ends of the shield parts 5a and 5b are partially overlapped by the shield parts 5c and 5d.

[0022] When the lens substrate ASSY1 and the substrate 6 are inserted into the camera case 3, the shield parts 5c and 5d are pushed by the cover 13 of the lens substrate ASSY1 and tilt toward the inside of the camera case 3 before the shield parts 5a and 5b. The overlapping parts of the shield parts 5a and 5b are pushed with the tilting operation of the shield parts 5c and 5d, so that the shield parts 5a and 5b tilt toward the inside of the camera case 3. In other words, the shield parts 5c and 5d tilt toward the inside of the camera case 3 with a time difference from the shield parts 5a and 5b. This makes it possible to easily bend the shield parts 5a to 5d toward the inside of the camera case 3 without causing adjacent shield parts to come into contact with each other when tilting the shield parts 5a to 5d along the lens substrate ASSY1 toward the inside of the camera case 3.

[0023] In this embodiment, as shown in Fig. 3, the upper end 5i of the shield 5 in the x direction is hemmed by bending it into a U shape, for example. This can reduce friction between the upper end 5i of the shield 5 and the cover 13 of the lens substrate ASSY1 when the lens substrate ASSY1 and the substrate 6 are stored in the camera case 3. As a result, it is possible to prevent the upper end 5i of the shield 5 from getting caught on the cover 13 and being unable to move to the inside of the camera case 3, and the upper surface 6a of the substrate 6 from being unable to be covered by the shield 5. This can also prevent the upper end 5i of the shield 5 from getting caught on the substrate 6 when the substrate 6 is stored in the camera case 3, and therefore it is possible to prevent the substrate 6 from being damaged by the shield 5 getting caught on the substrate 6.

[0024] Furthermore, it is preferable that the contact portion of the lens substrate ASSY1 that comes into contact with the upper end 5i of the shield 5 is made of a resin material. In this embodiment, the cover 13 of the lens substrate ASSY1 is made of a resin material. This makes it possible to further reduce friction between the upper end 5i of the shield 5 and the cover 13 of the lens substrate ASSY1 when the substrate 6 is stored in the camera case 3. In this embodiment, the entire cover 13 is made of a resin material, but it is sufficient that at least the portion of the cover 13 that comes into contact with the upper end 5i of the shield 5 is made of a resin material.

[0025] Furthermore, the shield 5 has notches or holes 5f, 5g at the position of the substrate 6 in the x direction. This allows stress to be concentrated at the holes 5f, 5g when the shield portions 5a-5d are tilted toward the inside of the camera case 3 along the lens substrate ASSY1, and the position of the substrate 6 of the shield 5 can be used as the starting point for bending the shield 5. As a result, when the shield portions 5a-5d are tilted toward the inside of the camera case 3 along the lens substrate ASSY1, it is possible to prevent only the upper portion of the shield 5 from bending and the shield 5 from being unable to cover the upper surface 6a of the substrate 6.

[0026] As shown in FIG. 3, when the vehicle-mounted camera 10 is manufactured or assembled, specifically, when the lens substrate ASSY1 and the substrate 6 are inserted into the camera case 3, the shield parts 5a to 5d are inclined toward the inside of the camera case 3 along the lens substrate ASSY1. Specifically, the shield parts 5c and 5d are inclined toward the inside of the camera case 3 along the cover 13 by bringing the upper end 5i, which is an example of the first end on the upper surface 6a side of the substrate 6, into contact with the cover 13 of the lens substrate ASSY1. The shield parts 5a and 5b are inclined toward the inside of the camera case 3 by pushing the overlapping parts with the tilting operation of the shield parts 5c and 5d. In this embodiment, when the vehicle-mounted camera 10 is manufactured or assembled, the shield parts 5a to 5d are inclined toward the inside of the camera case 3 until the cover 13 of the lens substrate ASSY1 abuts against the abutment surface 33 of the camera case 3.

[0027] As a result, the upper ends 5i of the shield parts 5a to 5d move inwardly to the camera case 3, and the shield 5 is provided at a position facing the upper surface 6a of the substrate 6, so that the upper surface 6a of the substrate 6 can be covered by the shield 5. As a result, noise to the substrate 6 from the upper surface 6a side of the substrate 6 is reduced, and the noise resistance performance of the vehicle-mounted camera 10 can be improved. In addition, since the shield parts 5a to 5d are inclined in advance toward the inside of the camera case 3, when the upper ends 5i of the shield parts 5a to 5d are inclined along the lens substrate ASSY1, the shield parts 5a to 5d can be bent inwardly to the camera case 3 with a low load.

[0028] Incidentally, it is also possible to insert-mold the shield 5 into the camera case 3 by, for example, evaporating metal onto the inside of the camera case 3 including the lid side of the camera case 3 (i.e., the lens substrate ASSY1). However, the technology for insert-mold the thin shield 5 into the camera case 3 is difficult, and there is a concern that the cost will be high.

[0029] In contrast, with the shield 5 according to this embodiment, the periphery of the substrate 6 including the space between the upper surface 6a of the substrate 6 and the lens substrate ASSY1 can be covered with the shield 5 without changing the components constituting the conventional vehicle-mounted camera and without using a special method such as insert molding. As a result, the heat dissipation performance and noise resistance performance of the substrate 6 can be improved easily and at low cost.

[0030] In this embodiment, as shown in FIG. 4, the holes in the shield 5 include, in addition to the aforementioned holes 5f and 5g, a hole (opening) 5h that penetrates from the space between the shield 5 and the substrate 6 to the space between the shield 5 and the camera case 3.

[0031] Here, the hole 5f is a circular hole provided in the center of each of the shield parts 5a to 5d in the y and z directions perpendicular to the x direction. The hole 5g is an elliptical hole provided at the end of each of the shield parts 5a to 5d in the y and z directions. The hole 5h is provided at the end opposite to the upper end 5i of the shield parts 5a to 5d in the x direction. In this embodiment, the hole 5h is provided at the end of each of the shield parts 5a to 5d in the y and z directions. In this embodiment, the holes 5f, 5g, and 5h are circular holes, but they may be holes that penetrate from the gap between the shield 5 and the substrate 6 to the gap between the shield 5 and the camera case 3, and may be, for example, rectangular holes.

[0032] The heat dissipation member 4 is provided in the space between the shield 5 and the substrate 6. When the lens substrate ASSY1 and the substrate 6 are inserted into the camera case 3, the heat dissipation member 4 is pushed out between the shield 5 and the camera case 3 by the substrate 6 through the holes 5f, 5g, and 5h, as shown in Fig. 4. This allows the heat generated in the substrate 6 to be efficiently dissipated to the camera case 3, thereby improving the heat dissipation performance of the vehicle-mounted camera 10.

[0033] Here, the heat dissipation member 4 is a resin material that hardens over time. For example, the heat dissipation member 4 may be silicone. Alternatively, the heat dissipation member 4 may be a heat dissipation member whose base material is silicone, whose filler is aluminum hydroxide or aluminum oxide, and whose thermal conductivity is 3 W / m·K. Alternatively, the heat dissipation member 4 may be a heat dissipation member whose base material is silicone, whose filler is aluminum oxide, and whose thermal conductivity is 5 W / m·K.

[0034] The heat dissipation member 4 is poured into the gap between the shield 5 and the substrate 6. Then, when the lens substrate ASSY1 and the substrate 6 are inserted into the camera case 3, the substrate 6 causes the heat dissipation member 4 to flow into the gap between the shield 5 and the camera case 3 through the holes 5f, 5g, and 5h. This allows the substrate 6, the shield 5, and the camera case 3 to be connected by the heat dissipation member 4, and the heat generated in the substrate 6 to be efficiently dissipated to the camera case 3, thereby improving the heat dissipation performance of the vehicle-mounted camera 10.

[0035] Furthermore, by leaving the heat dissipation member 4 in an incompletely hardened state when the lens substrate ASSY1 and the substrate 6 are housed in the camera case 3, the heat dissipation member 4 is pushed out into the gap between the shield 5 and the camera case 3 through the holes 5f, 5g, and 6h by the substrate 6 housed in the camera case 3. This allows the heat dissipation member 4 to reliably fill the gap between the substrate 6, the shield 5, and the camera case 3. As a result, the heat generated in the substrate 6 can be efficiently dissipated to the camera case 3.

[0036] Next, an example of the flow of the manufacturing method for the vehicle-mounted camera 10 according to this embodiment will be described with reference to Fig. 5. Fig. 5 is a flow chart showing an example of the flow of the manufacturing method for the vehicle-mounted camera according to the first embodiment.

[0037] In this embodiment, first, the lens substrate ASSY1 and the substrate 6 are inserted into the camera case 3. At that time, the upper ends 5i of the shield parts 5a to 5d come into contact with the lens substrate ASSY1, and the shield parts 5a to 5d are inclined toward the inside of the camera case 3 along the lens substrate ASSY1 (step S601). This makes it possible to provide the shield parts 5a to 5d facing the upper surface 6a of the substrate 6.

[0038] When the heat dissipation member 4 is poured into the gap between the shield parts 5a-5e and the substrate 6, the substrate 6 pours the heat dissipation member 4 in the gap between the shield parts 5a-5e and the substrate 6 into the gap space between the shield parts 5a-5e and the camera case 3 through the holes 5f, 5g, 5h (step S602). This connects the substrate 6, the shield 5, and the camera case 3 with the heat dissipation member 4, and allows the heat generated in the substrate 6 to be efficiently dissipated to the camera case 3, improving the heat dissipation performance of the vehicle-mounted camera 10.

[0039] Thus, according to the vehicle-mounted camera 10 of the first embodiment, when the lens substrate ASSY1 and the substrate 6 are inserted into the camera case 3, the shield portions 5a to 5d can be inclined toward the inside of the camera case 3 along the lens substrate ASSY1, and the shield 5 can be provided facing the upper surface 6a of the substrate 6. As a result, noise to the substrate 6 from the upper surface 6a side of the substrate 6 is reduced, and the noise resistance performance of the vehicle-mounted camera 10 can be improved.

[0040] Second embodiment This embodiment is an example in which the lens substrate ASSY has a stopper that suppresses the inclination of the shield toward the inside of the camera case after the top surface of the substrate is covered by the shield, and pushes the substrate of the shield toward the outside of the camera case in the x direction. In the following description, the same configuration as the first embodiment will not be described.

[0041] An example of a method for manufacturing the vehicle-mounted camera 10 according to the present embodiment will be described with reference to Fig. 6. Fig. 6 is a schematic diagram of a vertical cross section for explaining an example of a method for manufacturing the vehicle-mounted camera according to the second embodiment.

[0042] In this embodiment, before the board 6 is inserted into the camera case 3, the shield 5 is in an open state outward beyond the board 6 in the y and z directions.

[0043] Thereafter, when the lens substrate ASSY1 and the substrate 6 are inserted into the camera case 3, the cover 13 of the lens substrate ASSY1 comes into contact with the upper end 5i of the shield 5, and the upper end 5i of the shield 5 is pushed into the camera case 3. As a result, the shield portions 5a to 5d fall toward the inside of the camera case 3 and are disposed opposite the upper surface 6a of the substrate 6.

[0044] Moreover, the cover 13 of the lens substrate ASSY1 has a stopper 14. The stopper 14 is an example of a stopper that suppresses the inward tilt of the shield 5 into the camera case 3 and pushes the position of the substrate 6 of the shield 5 in the x direction outward from the camera case 3 after the shield 5 is disposed facing the upper surface 6a of the substrate 6, in other words, after the upper surface 6a is covered by the shield portions 5a to 5d.

[0045] As a result, in the vehicle-mounted camera 10 according to the second embodiment, after the upper surface 6a is covered by the shield parts 5a to 5d, the movement of the upper end 5i of the shield 5 is stopped by the stopper 14, so that the position of the substrate 6 in the x direction of the shield 5 is pushed to the outside of the camera case 3. As a result, the gap between the shield 5 and the camera case 3 becomes smaller, and heat generated in the substrate 6 can be efficiently dissipated to the camera case 3, thereby improving the heat dissipation performance of the vehicle-mounted camera 10.

[0046] Third embodiment In this embodiment, the lens substrate ASSY is stored in the camera case in a state where a cover of the lens substrate ASSY and a welding ring that is welded to the camera case are separate from the lens substrate ASSY. In the following description, the same configuration as the above embodiment will not be described.

[0047] An example of the configuration of the vehicle-mounted camera 10 according to this embodiment will be described with reference to Figures 7 to 9. Figures 7 and 8 are perspective cross-sectional views of the vehicle-mounted camera according to the third embodiment. Figure 9 is a perspective view of a camera case provided in the vehicle-mounted camera according to the third embodiment.

[0048] In the first and second embodiments, an example has been described in which the lens substrate ASSY1 and the welding ring 701 are welded in advance before the lens substrate ASSY1 and the substrate 6 are housed in the camera case 3. That is, in the first and second embodiments, the welding ring 701 is welded in advance to the cover 702 provided around the lens barrel 11 of the lens substrate ASSY1. In contrast, the present embodiment is an example in which the cover 702 of the lens substrate ASSY1 and the welding ring 701 are separate, and after the lens substrate ASSY1 and the substrate 6 are housed in the camera case 3, the camera case 3 and the lens substrate ASSY1 are welded by the welding ring 701.

[0049] In this embodiment, the camera case 3 is a rectangular box-shaped housing having an opening on the upper surface 6a side of the substrate 6, similarly to the first and second embodiments. The lens substrate ASSY1 has a cover 702 that is at least partially stored inside the camera case 3 and closes the opening 34. The welding ring 701 is an example of a welding member that is provided on the outside of the camera case 3, comes into contact with the camera case 3 and the cover 702, and is welded to the camera case 3 and the cover 702 by laser irradiation.

[0050] 9, the camera case 3 has four receiving portions 703 that are provided at corners inside the camera case 3 and support the cover 702 stored inside the camera case 3. The receiving portions 703 are made of resin or the like and are an example of a receiving portion that fixes the position of the lens substrate ASSY1 in the insertion direction of the lens substrate ASSY1 from the opening 34 into the camera case 3. Furthermore, in this embodiment, when the lens substrate ASSY1 and the substrate 6 are stored inside the camera case 3, the upper end 5i of the shield 5 is brought into contact with the cover 702, and the central portion (inner side) of the cover 702 is supported by the reaction force of the shield 5.

[0051] Conventionally, in a structure in which the lens substrate ASSY1 and the welding ring 701 are separated into two components, two laser irradiations are required, one for welding the camera case 3 to the welding ring 701 and the other for welding the lens substrate ASSY1 to the welding ring 701. That is, conventionally, prior to storing the lens substrate ASSY1 in the camera case 3, the lens substrate ASSY1 and the welding ring 701 are placed on a completely fixed jig, and laser irradiation is performed while the lens substrate ASSY1 and the welding ring 701 are pressed down by external equipment. Furthermore, conventionally, because the receiving portion 703 in the camera case 3 is not provided, it was necessary to separate the laser irradiation for welding the camera case 3 to the welding ring 701 and the other for welding the lens substrate ASSY1 to the welding ring 701 into two separate irradiations.

[0052] In contrast, in this embodiment, camera case 3 has four receiving portions 703 that fix the position of lens substrate ASSY1 in the insertion direction of lens substrate ASSY1 from opening 34 into camera case 3. Thereby, similar to the case where a jig is used, it is possible to create a fixed state of the positional relationship between lens substrate ASSY1 and welding ring 701 inside camera case 3 by receiving portions 703 and shield 5. As a result, after lens substrate ASSY1 is stored inside camera case 3, welding of lens substrate ASSY1 to welding ring 701 and welding of camera case 3 to welding ring 701 can be performed simultaneously.

[0053] Fig. 10 is a diagram for explaining an example of a welding structure between the lens substrate ASSY, the camera case, and the welding ring in a conventional vehicle-mounted camera. Fig. 11 is a diagram for explaining an example of a welding structure between the lens substrate ASSY, the camera case, and the welding ring in a vehicle-mounted camera according to a third embodiment. Next, an example of a welding structure between the lens substrate ASSY1, the camera case 3, and the welding ring 701 in the vehicle-mounted camera 10 according to this embodiment will be described with reference to Figs. 10 and 11.

[0054] As shown in Fig. 10, in the conventional manufacturing method for a vehicle-mounted camera, prior to storing the lens substrate ASSY1 in the camera case 3, the lens substrate ASSY1 and the welding ring 701 are placed on a completely fixed jig, and laser irradiation is performed in a state in which the lens substrate ASSY1 and the welding ring 701 are pressed down by an external device (RIGID fixed state). Next, in the conventional manufacturing method for a vehicle-mounted camera, after performing a six-axis adjustment in a state in which the welding ring 701 is welded to the lens substrate ASSY1, the lens substrate ASSY1 and the substrate 6 are stored in the camera case 3. Thereafter, in the conventional manufacturing method for a vehicle-mounted camera, laser irradiation is performed again on the welding ring 701 in a state in which the welding ring 701 is pressed down by an external force of the camera case 3 (for example, an external force of 200 to 300 N), to weld the welding ring 701 to the camera case 3.

[0055] In contrast, in the manufacturing method for vehicle-mounted camera 10 according to the present embodiment, after six-axis adjustment is performed only on lens substrate ASSY1, lens substrate ASSY1 and substrate 6 are stored in camera case 3. At that time, receiving portion 703 fixes the position of lens substrate ASSY1 in the insertion direction of lens substrate ASSY1 from opening 34 into camera case 3. Thereafter, in the manufacturing method for vehicle-mounted camera 10 according to the present embodiment, welding ring 701 is pressed down by an external force (for example, an external force of 200 to 300 N), and laser irradiation is performed on welding ring 701 to achieve welding of cover 702 of lens substrate ASSY1 to welding ring 701 and welding of welding ring 701 to camera case 3 at the same time.

[0056] Thus, with vehicle-mounted camera 10 according to the third embodiment, similarly to the case where a jig is used, it is possible to create a fixed positional relationship between lens substrate ASSY1 and welding ring 701 within camera case 3 by receiver 703 and shield 5. As a result, after lens substrate ASSY1 is stored within camera case 3, welding of lens substrate ASSY1 to welding ring 701 and welding of camera case 3 to welding ring 701 can be performed simultaneously.

[0057] Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope of the invention and its equivalents described in the claims, as well as in the scope and spirit of the invention. [Explanation of symbols]

[0058] 1 Lens board assembly 2. Glue 3. Camera Case 4 Heat dissipation materials 5. Shield 5f,5g,5h hole 5a, 5b Shield section 6 Substrate 7. Image sensor 10. Car Camera 11 Telescope tube 12 Lenses 13,702 Covers 33 Contact surface 34 Aperture 701 Welding Ring 703 Receiving part

Claims

1. a lens unit including a lens barrel in which a lens is disposed; an image sensor disposed on an emission side of the light from the lens barrel and configured to receive the light; a substrate having a first surface on which the imaging element is disposed, a second surface opposite to the first surface, and a side portion disposed between the first surface and the second surface; a housing that houses the substrate and has at least a portion in contact with the lens unit; a shield disposed within the housing; Equipped with The shield is a bottom surface portion, at least a portion of which is provided opposite the second surface of the substrate; four side surfaces extending from the bottom surface and facing the side surfaces of the substrate; An in-vehicle camera, wherein each of the four side portions of the shield extends obliquely from the side portion of the substrate toward a position opposite the first surface of the substrate.

2. 2. The vehicle-mounted camera of claim 1, wherein the length of the shield in a first direction perpendicular to the substrate is longer than an inner dimension of the housing covering the side of the substrate in the first direction, and the shield inclines toward the inside of the housing along the lens unit when the lens unit and the substrate are inserted into the housing.

3. 3. The vehicle-mounted camera of claim 2, wherein the shield has a first shield pair which is a plate-like member arranged opposite to each other, and a second shield pair which is a plate-like member arranged opposite to each other and partially overlaps an end of the first shield pair, and when the lens unit and the substrate are inserted into the housing, the first shield pair inclines toward the inside of the housing with a time difference from the second shield pair.

4. The vehicle-mounted camera according to claim 2 , wherein a portion of the lens unit that comes into contact with the shield is made of a resin material.

5. 5. The vehicle-mounted camera according to claim 2, wherein an end of the shield that comes into contact with the lens unit is hemmed.

6. The vehicle-mounted camera according to claim 2 , wherein the shield has a hole at a position of the substrate in the first direction.

7. The vehicle-mounted camera according to claim 6 , wherein the holes are provided at a position of the substrate in the first direction and at a center and an end of the shield in a second direction perpendicular to the first direction.

8. a heat dissipation member provided between the shield and the substrate; the hole is further provided in a second end of the shield opposite to a first end that contacts the lens unit in the first direction, 8. The vehicle-mounted camera according to claim 6, wherein the heat dissipation member is pushed out between the shield and the housing through the hole by the board when the lens unit and the board are inserted into the housing.

9. 9. The vehicle-mounted camera according to claim 3, further comprising a stopper that suppresses inward tilt of the shield with respect to the housing after the first surface is covered by the shield and pushes a position of the substrate of the shield in the first direction outward from the housing.

10. the housing is a rectangular box-shaped housing having an opening on the first surface side, the lens unit has a cover that is housed in the housing and closes the opening, a welding member provided outside the housing, in contact with the housing and the cover, and welded to the housing and the cover by laser irradiation; a receiving portion provided at a corner of the housing, the receiving portion supporting the cover and fixing a position of the lens unit in a direction in which the lens unit is inserted from the opening into the housing; The vehicle-mounted camera according to claim 2 , further comprising:

11. a housing for housing the lens unit and the board; a shield provided in the housing to face a side of the board and a first surface of the board on which the image sensor is mounted, the shield having a length in a first direction perpendicular to the board that is longer than an inner dimension of the housing that covers the side of the board in the first direction; and a heat dissipation member provided between the shield and the board, the shield has holes at a center and an end of the substrate in the first direction and at a second end opposite the first end in contact with the lens unit; When the lens unit and the substrate are inserted into the housing, the shield inclining toward the inside of the housing along the lens unit; the substrate extruding the heat dissipation member through the hole and between the shield and the housing; A method for manufacturing an in-vehicle camera, comprising:

12. a step of, after the first surface is covered by the shield, a stopper of the lens unit suppresses tilt of the shield toward the inside of the housing, and pushing a position of the substrate of the shield in the first direction toward the outside of the housing; The method for manufacturing an in-vehicle camera according to claim 11, further comprising:

13. the housing is a rectangular box-shaped housing having an opening on the first surface side, the lens unit has a cover that is housed in the housing and closes the opening, a receiving portion provided at a corner portion inside the housing supports the cover and fixes a position of the lens unit in an insertion direction of the lens unit from the opening into the housing; a step of bringing a welding member provided on the outside of the housing into contact with the housing and the cover and welding the housing and the cover to each other by laser irradiation; The method for manufacturing an in-vehicle camera according to claim 11 or 12, further comprising:

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