On-vehicle camera

The innovative design of the in-vehicle camera with conductive and resin members addresses heat dissipation issues by reducing the distance between internal components and the housing, improving heat dissipation and maintaining camera performance.

JP2025132694APending Publication Date: 2025-09-10PANASONIC AUTOMOTIVE SYST CO LTD
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Patent Information

Application Number
JP2024030433
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-02-29
Publication Date
2025-09-10

AI Technical Summary

Technical Problem

Existing in-vehicle cameras face challenges in heat dissipation due to the presence of spaces that reduce the effectiveness of dissipating heat generated by internal components, which can impair their functionality.

Method used

The design incorporates a conductive member and resin members that house the circuit board and imaging element, with the conductive member's bottom surface and side surfaces positioned between the housing's inner and outer surfaces, reducing the distance to improve heat dissipation, and resin members further enhance thermal conductivity.

Benefits of technology

This configuration enhances heat dissipation by minimizing the gap between internal components and the housing, ensuring effective heat removal and maintaining camera functionality.

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Abstract

To reduce a distance between an inner face of a housing and a component such as a circuit board arranged inside the housing, and improve heat dissipation action.SOLUTION: An on-vehicle camera includes a lens barrel, a circuit board, an imaging element, a first conductive member arranged so as to store the circuit board and the imaging element, and a housing storing the circuit board and the imaging element. A large-diameter cylindrical part of the housing has a housing end face, a first wall part, a second wall part, a third wall part, and a fourth wall part. The first conductive member includes; a bottom face part between the inner face and the outer face of the housing end face; a first side face part which extends from the bottom face part, and is between a first inside face and a first outside face of the first wall part of the large-diameter cylindrical part of the housing; a second side face part which extends from the bottom face part, and is between a second inside face and a second outside face of the second wall part of the large-diameter cylindrical part of the housing; a third side face part which extends from the bottom face part and is between a third inside face and a third outside face of the third wall part of the large-diameter cylindrical part; and a fourth side face part which extends from the bottom face part and is between a fourth inside face and a fourth outside face of the fourth wall part of the large-diameter cylindrical part.SELECTED DRAWING: Figure 12
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Description

[Technical Field]

[0001] The present disclosure relates to an in-vehicle camera. [Background technology]

[0002] BACKGROUND ART In recent years, with demands for improved vehicle safety and the introduction of autonomous driving functions, there has been active development of in-vehicle cameras that are mounted on vehicles and capture images of the inside and outside of the vehicle (see, for example, Patent Documents 1 to 4). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] US Patent Application Publication No. 2010 / 367984 [Patent Document 2] US Patent Application Publication No. 2010 / 506141 [Patent Document 3] US Patent Application Publication No. 2010 / 694090 [Patent Document 4] Japanese Patent Application Laid-Open No. 2017-147648 Summary of the Invention [Problem to be solved by the invention]

[0004] The level of requirements for vehicle safety and autonomous driving functions is constantly increasing, and further improvements in the performance of in-vehicle cameras are also being called for.

[0005] The present disclosure relates to a technology for providing a new vehicle-mounted camera. [Means for solving the problem]

[0006] The present disclosure provides a lens barrel including a first cylindrical portion having a first cylindrical shape along an optical axis and at least one lens arranged inside the first cylindrical portion and on the optical axis; a circuit board having a first surface and a second surface opposite to the first surface; an imaging element electrically connected to a circuit on the circuit board and arranged on the first surface of the circuit board on the optical axis; a first conductive member arranged to accommodate at least the circuit board and the imaging element; and a second cylindrical portion arranged to accommodate at least the circuit board and the imaging element and having a second cylindrical shape along the optical axis. a housing made of resin, wherein the second cylindrical portion of the housing has a housing end surface at least a portion of which faces the second surface of the circuit board and has a first shape including at least a first side, a second side, a third side, and a fourth side in a plan view of the housing, a first wall portion having a first inner side surface and a first outer side surface and extending from the first side of the housing end surface in a direction away from the housing end surface along the optical axis, a second wall portion having a second inner side surface and a second outer side surface and extending from the second side of the housing end surface in a direction away from the housing end surface along the optical axis, and a third inner side surface and a third outer side surface and extending from the housing end surface along the optical axis the first conductive member has a third wall portion extending from the third side in a direction away from the housing end face, and a fourth wall portion having a fourth inner side surface and a fourth outer side surface, and extending from the fourth side of the housing end face in a direction away from the housing end face along the optical axis, at least a portion of the first conductive member being between the inner surface of the housing end face and the outer surface of the housing end face, and having a second shape including at least a fifth side, a sixth side, a seventh side, and an eighth side in a plan view of the first conductive member; a first side surface portion between the first inner side surface and the first outer side surface of the first wall portion of the second cylindrical portion of the housing; a second side surface portion at least a portion of which extends along the optical axis from the sixth side of the bottom portion in a direction away from the bottom portion and between the second inner side surface and the second outer side surface of the second wall portion of the second cylindrical portion of the housing; and a third side surface portion at least a portion of which extends along the optical axis from the seventh side of the bottom portion in a direction away from the bottom portion and between the third inner side surface and the third outer side surface of the third wall portion of the second cylindrical portion of the housing;and a fourth side surface portion, at least a portion of which extends from the eighth side of the bottom surface portion along the optical axis in a direction away from the bottom surface portion, and which is located between the fourth inner surface and the fourth outer surface of the fourth wall portion of the second cylindrical portion of the housing. [Effects of the Invention]

[0007] According to the present disclosure, the first conductive member housing at least the circuit board and the imaging element has a bottom surface and a side surface. At least a portion of the bottom surface is disposed between the inner surface of the housing end face and the outer surface of the housing end face, and at least a portion of the side surface is disposed between the inner surface and the outer surface of the wall of the second cylindrical portion of the housing. This reduces the distance between the inner surface of the housing and components, such as the circuit board, disposed inside the housing, thereby improving heat dissipation. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a top view of an example of a vehicle equipped with an on-board camera. [Figure 2] FIG. 2 is a block diagram showing an example of connections between an in-vehicle camera, a camera ECU, and a display provided in the vehicle shown in FIG. [Figure 3] 1 is a schematic diagram of another example of a vehicle, in which an on-board camera is installed; [Figure 4] Figure 3: Top view of the vehicle [Figure 5] FIG. 4 is a block diagram showing an example of connections between an in-vehicle camera, a camera ECU, and a display provided in the vehicle shown in FIG. [Figure 6] FIG. 1 is a front perspective view of an in-vehicle camera according to an embodiment; [Figure 7] FIG. 1 is a rear perspective view of an in-vehicle camera according to an embodiment; [Figure 8] FIG. 1 is an exploded perspective view of an in-vehicle camera according to an embodiment; [Figure 9] 1 is an exploded side view of an in-vehicle camera according to an embodiment; [Figure 10] 1 is a top view of an in-vehicle camera according to an embodiment; [Figure 11] Cross-sectional view taken along line II in Figure 9 [Figure 12] Top perspective view showing the inside of the housing [Figure 13] 1 is a perspective view of a second conductive member; [Figure 14] A bottom perspective view of the lens barrel bracket DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, with reference to the drawings as appropriate, a detailed description of an embodiment specifically disclosing an in-vehicle camera according to the present disclosure will be provided. However, more detailed description than necessary may be omitted. For example, detailed description of well-known matters and redundant description of substantially identical configurations may be omitted. This is to avoid unnecessary redundancy in the following description and to facilitate understanding by those skilled in the art. Note that the accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter of the claims.

[0010] (Vehicles equipped with in-vehicle cameras) 1 shows an example of a vehicle, a top view of a vehicle equipped with an on-board camera. Vehicle V is equipped with on-board cameras 100, including on-board camera 100A, on-board camera 100B, on-board camera 100C, and on-board camera 100D. On-board camera 100A is a front camera, on-board camera 100B is a rear camera, on-board camera 100C is a right-side camera, and on-board camera 100D is a left-side camera. On-board cameras 100A to 100D are wide-angle cameras with an angle of view of, for example, about 180°, and are positioned so that the entire periphery of vehicle V can be imaged.

[0011] For example, vehicle-mounted camera 100A is installed on the front grill of vehicle V and captures images of the area ahead in a direction looking diagonally down relative to the ground. Vehicle-mounted camera 100B is installed on the roof spoiler of vehicle V and captures images of the area behind in a direction looking diagonally down relative to the ground. Vehicle-mounted camera 100C and vehicle-mounted camera 100D are each installed on the side mirrors of vehicle V and capture images of the areas to the side in a direction looking diagonally down relative to the ground.

[0012] Fig. 2 is a block diagram showing an example of connections between the vehicle-mounted cameras 100A to 100D, the camera ECU 110, and the display 7 provided in the vehicle V shown in Fig. 1. The camera ECU (Electronic Control Unit) 110 shown in Fig. 2 combines images captured by the vehicle-mounted cameras 100A to 100D and displays the combined image on a display 7 of a navigation system disposed on, for example, an instrument panel. The occupants can view the display 7 to check the situation around the vehicle V.

[0013] FIG. 3 is a schematic diagram of another example of a vehicle cabin equipped with an on-board camera, and FIG. 4 is a top view of the vehicle of FIG. 3. The vehicle V is provided with a display 5 (e.g., an electronic rearview mirror) in the front portion of the cabin 2 between the driver's seat 3 and the passenger seat 4, at the mounting position of the rearview mirror. The vehicle V also has an on-board camera 100 mounted at the rear of the vehicle body. FIG. 5 is a block diagram showing an example of the connection between the on-board camera 100, camera ECU 111, and display 5 provided in the vehicle V shown in FIG. 3. The camera ECU (Electronic Control Unit) 111 shown in FIG. 4 processes images captured by the on-board camera 100, and the display 5 displays the images. Passengers can view the display 5 to check the situation behind the vehicle V.

[0014] (Embodiment of an in-vehicle camera) FIG. 6 is a front perspective view of the vehicle-mounted camera 100 according to the embodiment. FIG. 7 is a rear perspective view of the vehicle-mounted camera 100 according to the embodiment. FIG. 8 is an exploded perspective view of the vehicle-mounted camera 100 according to the embodiment. FIG. 9 is an exploded side view of the vehicle-mounted camera 100 according to the embodiment. FIG. 10 is a top view of the vehicle-mounted camera 100 according to the embodiment. FIG. 11 is a cross-sectional view taken along line II in FIG. 10. Note that coordinates are defined that include an X-axis along one side of the vehicle-mounted camera 100, a Y-axis that is perpendicular to the X-axis and along the other side of the vehicle-mounted camera 100, and a Z-axis that is perpendicular to the X-axis and Y-axis and along the height direction of the vehicle-mounted camera 100, and these will be used in the following description.

[0015] The vehicle-mounted camera 100 of this embodiment includes a ring member 20, a lens barrel 30, a circuit board 40, an imaging element 50, a housing 60, a first conductive member 70, a first resin member 90, a second conductive member 75, a second resin member 95, and a lens barrel bracket 32. 8 and 9 show perspective views of the first conductive member 70 and the housing 60, and a housing module 11 combining the first conductive member 70 and the housing 60, as well as perspective views of the second conductive member 75 and the lens barrel bracket 32, and a bracket module 12 combining the second conductive member 75 and the lens barrel bracket 32.

[0016] The ring member 20 is made of a flat member having a rectangular ring shape in a plan view, and is laser welded to the lens barrel 30, the housing 60, and the lens barrel bracket 32. The inner peripheral surface of the ring member 20 faces the outer peripheral surface of the first cylindrical portion 31 (see below) of the lens barrel 30. The inner diameter of the ring member 20 has a length that allows the first cylindrical portion 31 of the lens barrel 30 to be inserted therein.

[0017] The ring member 20 can be molded from, for example, resin, which allows the ring member 20 to be molded easily and at low cost.

[0018] The lens barrel 30 includes a first cylindrical portion 31 that constitutes a cylindrical lens barrel, and at least one lens that is housed inside the first cylindrical portion 31 and is arranged on an optical axis L (an axis that extends perpendicular to the plane of the paper in FIG. 10 and is along the Z axis). The first cylindrical portion 31 is cylindrical and holds, for example, a lens group made up of multiple lenses inside. The lenses in the lens group are arranged with their respective optical axes L aligned, constituting a lens group used for capturing images of the inside and outside of the body of the vehicle V. The lens barrel 30 can be molded, for example, from resin. This allows the lens barrel 30 to be molded easily and at low cost.

[0019] The circuit board 40 is disposed in the internal space of the housing 60 and has a first surface 40a and a second surface 40b opposite the first surface 40a. However, two or more circuit boards may be provided. The circuit board 40 has a circuit on at least one of the first surface 40a and the second surface 40b, but may have a circuit on both surfaces.

[0020] In a plan view of the circuit board 40 (a shape viewed in a direction along the Z axis in the direction of the optical axis L; the same applies below), the circuit board 40 has a fourth shape including at least a thirteenth side 41a, a fourteenth side 41b, a fifteenth side 41c, and a sixteenth side 41d. The third shape is, for example, a third quadrangle, but may also be a triangle or a polygon with five or more sides. The circuit board 40 is located between the first surface 40a and the second surface 40b, and includes at least a first circuit board end face 41a1 corresponding to the thirteenth side 41a, a second circuit board end face 41b1 corresponding to the fourteenth side 41b, a third circuit board end face 41c1 corresponding to the fifteenth side 41c, and a fourth circuit board end face 41d1 corresponding to the sixteenth side 41d.

[0021] The imaging element 50 is disposed on the first surface 40a of the circuit board 40, and on the optical axis L of at least one lens of the lens barrel 30. The imaging element 50 is electrically connected to the circuit of the circuit board 40, and can capture an image by guiding external light to the imaging element 50.

[0022] The housing 60 is a cylindrical member with an internal space, supports the lens barrel 30, and houses at least the circuit board 40, the image sensor 50, and the first conductive member 70. The housing 60 has a large-diameter cylindrical portion 61 having a second cylindrical shape along the optical axis L and a small-diameter cylindrical portion 62 along the optical axis L. The large-diameter cylindrical portion 61 constituting the second cylindrical portion has a larger cross-sectional area than the small-diameter cylindrical portion 62, and both have rectangular cross sections. The large-diameter cylindrical portion 61 houses at least the circuit board 40 and the image sensor 50. The small-diameter cylindrical portion 62 houses a connector 80 (described below) that ensures electrical connection between the vehicle-mounted camera 100 and the outside. The large-diameter cylindrical portion 61 and the small-diameter cylindrical portion 62 can be integrally molded using a resin, as described below, or they may be joined by welding, screws, or other methods separately prepared in advance.

[0023] FIG. 12 is a top perspective view showing the interior of the housing 60. The large-diameter cylindrical portion 61 of the housing 60 has a housing end surface 69, a first wall portion 65a, a second wall portion 65b, a third wall portion 65c, and a fourth wall portion 65d. At least a portion of the housing end surface 69 faces the second surface of the circuit board and has a first shape including at least a first side 69a, a second side 69b, a third side 69c, and a fourth side 69d in a plan view of the housing. However, the first side 69a and the second side 69b are hidden by the first wall portion 65a and the second wall portion 65b in FIG. 12 and cannot be seen. The first shape is, for example, a first quadrangle, but may also be a triangle, a pentagon, or a polygon with more sides.

[0024] The first wall portion 65a has a first inner surface 66a and a first outer surface 67a, and extends along the optical axis L from the first side 69a of the housing end surface 69 in a direction away from the housing end surface 69. The first wall portion 65a further has a first housing end portion 63a located between the lens barrel 30 and the housing end surface 69 of the housing 60, and a first housing protrusion 64a that protrudes in a direction away from the first housing end portion 63a, using the housing end surface 69 of the housing 60 as a reference.

[0025] The second wall portion 65b has a second inner surface 66b and a second outer surface 67b, and extends along the optical axis L from a second side 69b of the housing end surface 69 in a direction away from the housing end surface 69. The second wall portion 65b further has a second housing end portion 63b located between the lens barrel 30 and the housing end surface 69 of the housing 60, and a second housing protrusion 64b that protrudes in a direction away from the second housing end portion 63b, using the housing end surface 69 of the housing 60 as a reference.

[0026] The third wall portion 65c has a third inner surface 66c and a third outer surface 67c, and extends along the optical axis L from a third side 69c of the housing end surface 69 in a direction away from the housing end surface 69. The third wall portion 65c further has a third housing end portion 63c located between the lens barrel 30 and the housing end surface 69 of the housing 60, and a third housing protrusion 64c that protrudes in a direction away from the third housing end portion 63c, using the housing end surface 69 of the housing 60 as a reference. However, the third housing protrusion 64c is hidden by the third wall portion 65c and cannot be seen in FIG.

[0027] Fourth wall 65d has a fourth inner side surface 66d and a fourth outer side surface 67d, and extends from a fourth side 69d of housing end surface 69 in a direction away from housing end surface 69 along optical axis L. Fourth wall 65d further has a fourth housing end portion 63d located between lens barrel 30 and housing end surface 69 of housing 60, and a fourth housing protrusion 64d (see FIG. 9) that protrudes in a direction away from fourth housing end portion 63d, using housing end surface 69 of housing 60 as a reference. However, fourth housing protrusion 64d is hidden by fourth wall 65d and cannot be seen in FIG.

[0028] The first conductive member 70 is arranged in the internal space of the housing 60 so as to accommodate at least the circuit board 40 and the imaging element 50. The first conductive member 70 serves to shield electromagnetic noise coming from outside the housing 60 and electromagnetic noise radiated within the internal space. The first conductive member 70 is made of a metal such as aluminum or stainless steel. The first conductive member 70 may be formed by bending a single metal plate or by drawing.

[0029] The first conductive member 70 has a flat bottom surface portion 71, a first side surface portion 72a, a second side surface portion 72b, a third side surface portion 72c, and a fourth side surface portion 72d. At least a portion of the bottom surface portion 71 is located between an inner surface 69e of the housing end face 69 and an outer surface 69f of the housing end face 69, and has a second shape including at least a fifth side 71a, a sixth side 71b, a seventh side 71c, and an eighth side 71d in a plan view of the first conductive member 70. The second shape is, for example, a second quadrangle, but may also be a triangle, a pentagon, or a polygon with more sides.

[0030] At least a portion of the first side surface portion 72a extends along the optical axis L from the fifth side 71a of the bottom surface portion 71 in a direction away from the bottom surface portion 71 and is located between the first inner side surface 66a and the first outer side surface 67a of the first wall portion 65a of the large-diameter cylindrical portion 61 of the housing 60. At least a portion of the second side surface portion 72b extends along the optical axis L from the sixth side 71b of the bottom surface portion 71 in a direction away from the bottom surface portion 71 and is located between the second inner side surface 66b and the second outer side surface 67b of the second wall portion 65b of the large-diameter cylindrical portion 61 of the housing 60. At least a portion of the third side surface portion 72c extends along the optical axis L from the seventh side 71c of the bottom surface portion 71 in a direction away from the bottom surface portion 71 and is located between the third inner side surface 66c and the third outer side surface 67c of the third wall portion 65c of the large-diameter cylindrical portion 61 of the housing 60. At least a portion of the fourth side surface portion 72d extends along the optical axis L from the eighth edge 71d of the bottom surface portion 71 in a direction away from the bottom surface portion 71, and is located between the fourth inner surface 66d and the fourth outer surface 67d of the fourth wall portion 65d of the large-diameter cylindrical portion 61 of the housing 60.

[0031] That is, in this embodiment, at least a portion of the first conductive member 70 is embedded in the housing end surface 69 and four wall portions of the housing 60, thereby constituting the housing module 11. Such a structure of the housing module 11 can be achieved, for example, by so-called insert molding, in which the first conductive member 70 is embedded in the housing 60 when the housing 60 is molded.

[0032] In conventional vehicle-mounted cameras, a shielding member corresponding to the first conductive member 70 is disposed on the inner surface of the housing. Furthermore, internal components such as circuit boards are disposed away from the shielding member to avoid electrical conduction due to contact with the shielding member. As a result, the internal components are disposed away from the inner surface of the housing, creating a space around the internal components.

[0033] Internal components, including the circuit board, generate heat, which must be dissipated; however, the presence of the space reduces the heat dissipation effect, which may impair the functionality of the in-vehicle camera.

[0034] In this embodiment, the first conductive member 70, which houses at least the circuit board 40 and the imaging element 50, has a bottom surface 71 and side surfaces. At least a portion of the bottom surface 71 is disposed between the inner surface 69e of the housing end face 69 and the outer surface 69f of the housing end face 69, and at least a portion of the side surface is disposed between the inner surface and the outer surface of the wall of the large-diameter cylindrical portion 61 of the housing 60. As a result, even if internal components are disposed close to the inner surface of the housing 60, contact and conduction with the first conductive member 70 can be avoided. Therefore, the distance between the inner surface of the housing 60 and internal components such as the circuit board 40 disposed inside the housing 60 can be reduced, thereby improving heat dissipation.

[0035] Furthermore, a first end 73a (see FIGS. 8 and 9) of the first side surface portion 72a of the first conductive member 70 is exposed to the inside of the housing 60 from a part of the first inner side surface 66a of the first wall portion 65a of the large-diameter cylindrical portion 61 of the housing 60. The first end 73a is exposed from the first housing end portion 63a of the first end 73a along the optical axis L, and is located more inward than the first housing protrusion portion 64a with respect to the optical axis L.

[0036] Furthermore, a second end 73b (see FIG. 8) of the second side surface portion 72b of the first conductive member 70 is exposed to the inside of the housing 60 from a part of the second inner side surface 66b of the second wall portion 65b of the large-diameter cylindrical portion 61 of the housing 60. The second end 73b is exposed from the second housing end portion 63b of the second end 73b along the optical axis L, and is located more inward than the second housing protrusion portion 64b with respect to the optical axis L.

[0037] 12, a third end 73c of the third side surface portion 72c of the first conductive member 70 is exposed to the inside of the housing from a part of the third inner side surface 66c of the third wall portion 65c of the large-diameter cylindrical portion 61 of the housing 60. The third end 73c is exposed from the third housing end portion 63c of the third end 73c along the optical axis L, and is located more inward than the third housing protrusion portion 64c with respect to the optical axis L.

[0038] 12, a fourth end 73d of a fourth side surface portion 72d of the first conductive member 70 is exposed to the inside of the housing 60 from a part of a fourth inner side surface 66d of a fourth wall portion 65d of the large-diameter cylindrical portion 61 of the housing 60. The fourth end 73d is exposed from a fourth housing end portion 63d of the fourth end 73d along the optical axis L, and is located more inward than the fourth housing protrusion portion 64d with respect to the optical axis L.

[0039] As a result, the end of the side surface of the first conductive member 70 is exposed inside the housing 60, ensuring connection with other conductive members such as the second conductive member 75 described below, and allowing for greater freedom in designing the shielding effect of the conductive members.

[0040] 13 is a perspective view of second conductive member 75. At least a portion of second conductive member 75 is disposed between lens barrel 30 and circuit board 40. Similar to first conductive member 70, second conductive member 75 serves to block electromagnetic noise arriving from outside housing 60 and electromagnetic noise radiated within the internal space. Second conductive member 75 is made of metal such as aluminum or stainless steel, for example. Second conductive member 75 may be formed by bending a single metal plate, or may be formed by drawing.

[0041] The second conductive member 75 has a planar portion 76 having a third shape including at least a ninth side 76a, a tenth side 76b, an eleventh side 76c, and a twelfth side 76d in a plan view. The third shape is, for example, a third quadrangle, but may also be a triangle, a polygon with pentagons or more sides, or a circle including an ellipse.

[0042] The second conductive member 75 further has a first contact portion 77a that contacts the first end 73a of the first side portion 72a of the first conductive member 70, particularly the inner surface of the first end 73a, via a first contact 77a1.

[0043] This provides second conductive member 75 in contact with first conductive member 70, thereby improving the shielding effect.

[0044] The second conductive member 75 has a second contact portion 77b that contacts the second end 73b of the second side surface 72b of the first conductive member 70, particularly the inner surface of the second end 73b, via a second contact 77b1. The second conductive member 75 also has a third contact portion 77c that contacts the third end 73c of the third side surface 72c of the first conductive member 70, particularly the inner surface of the third end 73c, via a third contact 77c1. The second conductive member 75 also has a fourth contact portion 77d that contacts the fourth end 73d of the fourth side surface 72d of the first conductive member 70, particularly the inner surface of the fourth end 73d, via a fourth contact 77d1. As a result, the second conductive member 75 contacts the first conductive member 70 via at least four contacts, thereby reliably ensuring the shielding effect of the second conductive member 75.

[0045] In particular, the second conductive member 75 has a first protrusion 78a that protrudes from a first portion 76a1 of the ninth side 76a of the planar portion 76 toward the inner surface of the first end 73a of the first conductive member 70. The second conductive member 75 also has a second protrusion 78b that protrudes from a second portion 76b1 of the tenth side 76b toward the inner surface of the second end 73b of the first conductive member 70. The second conductive member 75 also has a third protrusion 78c that protrudes from a third portion 76c1 of the eleventh side 76c toward the inner surface of the third end 73c of the first conductive member 70. The second conductive member 75 also has a fourth protrusion 78d that protrudes from a fourth portion 76d1 of the twelfth side 76d toward the inner surface of the fourth end 73d of the first conductive member 70.

[0046] A first end 73a of the first side surface portion 72a of the first conductive member 70 contacts a first protruding portion 78a of the second conductive member 75 via a first contact point 77a1 of the second conductive member 75. A second end 73b of the second side surface portion 72b of the first conductive member 70 contacts a second protruding portion 78b of the second conductive member 75 via a second contact point 77b1 of the second conductive member 75. A third end 73c of the third side surface portion 72c of the first conductive member 70 contacts a third protruding portion 78c of the second conductive member 75 via a third contact point 77c1 of the second conductive member 75. A fourth end 73d of the fourth side surface portion 72d of the first conductive member 70 contacts a fourth protruding portion 78d of the second conductive member 75 via a fourth contact point 77d1 of the second conductive member 75.

[0047] This allows the protruding portions protruding from the planar portion 76 of the second conductive member 75 to come into contact with the ends of the side surfaces of the first conductive member 70 via the contact points, thereby ensuring more reliable contact between the first conductive member 70 and the second conductive member 75. Note that the ninth side 76a, the tenth side 76b, the eleventh side 76c, and the twelfth side 76d may be defined along the portions where the protruding portions of each side are bent toward the contact points, as shown by the dashed lines of the rectangle in Fig. 13 .

[0048] The relationship between the circuit board 40 and the housing 60 will be described. At least a portion of a first inner side surface 66a of the first wall portion 65a of the large-diameter cylindrical portion 61 of the housing 60 faces the first circuit board end surface 41a1 of the circuit board 40. At least a portion of a second inner side surface 66b of the second wall portion 65b faces the second circuit board end surface 41b1 of the circuit board 40. At least a portion of a third inner side surface 66c of the third wall portion 65c faces the third circuit board end surface 41c1 of the circuit board 40. At least a portion of a fourth inner side surface 66d of the fourth wall portion 65d faces the fourth circuit board end surface 41d1 of the circuit board 40.

[0049] This allows the circuit board 40 to be efficiently arranged inside the large-diameter cylindrical portion 61 of the housing 60.

[0050] Furthermore, the first resin member 90 has a predetermined thermal conductivity and is disposed at least between the second surface 40b of the circuit board 40 and the inner surface 69e of the housing end surface 69 of the housing 60. As a result, by disposing the first resin member 90 between the second surface 40b of the circuit board 40 and the inner surface 69e of the housing end surface 69, the space between the second surface 40b and the inner surface 69e can be reduced, and the heat generated by the internal components can be dissipated more effectively.

[0051] The first resin member 90 is also disposed between the first inner surface 66a of the first wall portion 65a of the large-diameter cylindrical portion 61 of the housing 60 and the first circuit board end surface 41a1 of the circuit board 40. The first resin member 90 is also disposed between the second inner surface 66b of the second wall portion 65b of the large-diameter cylindrical portion 61 of the housing 60 and the second circuit board end surface 41b1 of the circuit board 40. The first resin member 90 is also disposed between the third inner surface 66c of the third wall portion 65c of the large-diameter cylindrical portion 61 of the housing 60 and the third circuit board end surface 41c1 of the circuit board 40. The first resin member 90 is also disposed between the fourth inner surface 66d of the fourth wall portion 65d of the large-diameter cylindrical portion 61 of the housing 60 and the fourth circuit board end surface 41d1 of the circuit board 40.

[0052] As a result, the first resin member 90 is also disposed between the inner surface of the wall portion of the large-diameter cylindrical portion 61 of the housing 60 and the end face of the circuit board 40, thereby further improving the heat dissipation effect.

[0053] Furthermore, a plurality of first electronic components 42 are arranged on the second surface 40b of the circuit board 40 (see Figure 9), and the inner surface 69e of the housing end surface 69 of the housing 60 has a plurality of first recesses 69e1 corresponding to the plurality of first electronic components 42.

[0054] As a result, the first recess 69e1 on the inner surface 69e of the housing end face 69 corresponds to the first electronic component 42 arranged on the second surface 40b of the circuit board 40, thereby reducing the gap between the inner surface 69e of the housing end face 69 and the second surface 40b of the circuit board 40 and improving the heat dissipation effect.

[0055] In such a structure, the first resin member 90 may be disposed between the plurality of first electronic components 42 and the plurality of first recesses 69e1 on the inner surface 69e of the housing end face 69. This allows the first resin member 90 to be disposed also between the first electronic components 42 and the first recesses 69e1, thereby further improving the heat dissipation effect.

[0056] 14 is a bottom perspective view of lens barrel bracket 32. Lens barrel bracket 32 ​​is a resin member with at least a portion thereof disposed between lens barrel 30 and first surface 40a of circuit board 40. Lens barrel bracket 32 ​​supports lens barrel 30 and is connected to housing 60 via ring member 20. Lens barrel bracket 32 ​​has a fifth shape including at least seventeenth side 33a, eighteenth side 33b, nineteenth side 33c, and twentieth side 33d in a plan view. The fifth shape is, for example, a quadrangle, but may also be a triangle or a polygon with five or more sides.

[0057] The lens barrel bracket 32 ​​has a first bracket surface 32a, a second bracket surface 32b opposite to the first bracket surface 32a and at least a portion of which faces the first surface 40a of the circuit board 40, and a bracket end surface 32c connecting the first bracket surface 32a and the second bracket surface 32b. The bracket end surface 32c has at least a first bracket end surface 32c1, a second bracket end surface 32c2, a third bracket end surface 32c3, and a fourth bracket end surface 32c4.

[0058] Here, at least a portion of the planar portion 76 of the second conductive member 75 is located between the first bracket surface 32a and the second bracket surface 32b of the lens barrel bracket 32. At least a portion of the first protrusion 78a of the second conductive member 75, particularly the first contact 77a1, is exposed from the first bracket end surface 32c1. At least a portion of the second protrusion 78b, particularly the second contact 77b1, is exposed from the second bracket end surface 32c2. At least a portion of the third protrusion 78c, particularly the third contact 77c1, is exposed from the third bracket end surface 32c3. At least a portion of the fourth protrusion 78d, particularly the fourth contact 77d1, is exposed from the fourth bracket end surface 32c4.

[0059] That is, in this embodiment, at least a portion of second conductive member 75 is embedded in lens barrel bracket 32, thereby constituting bracket module 12. Such a structure of bracket module 12 can be achieved, for example, by so-called insert molding, in which second conductive member 75 is embedded in lens barrel bracket 32 ​​when lens barrel bracket 32 ​​is molded.

[0060] As a result, at least a portion of the planar portion 76 of the second conductive member 75 is positioned inside the lens barrel bracket 32, thereby reducing the distance between the second bracket surface 32b of the lens barrel bracket 32 ​​and internal components such as the circuit board 40 positioned inside the housing 60, thereby improving heat dissipation.

[0061] Second resin member 95 has a predetermined thermal conductivity and is disposed at least between first surface 40a of circuit board 40 and second bracket surface 32b of lens barrel bracket 32. This reduces the space between first surface 40a of circuit board 40 and second bracket surface 32b of lens barrel bracket 32, and further improves the dissipation of heat generated by internal components.

[0062] Furthermore, a plurality of second electronic components 43 are arranged on the first surface 40a of the circuit board 40 (see Figure 9), and the second bracket surface 32b of the lens barrel bracket 32 ​​has a plurality of second recesses 32b1 corresponding to the plurality of second electronic components 43.

[0063] This allows the second recess 32b1 of the second bracket surface 32b to correspond to the second electronic component 43 arranged on the first surface 40a of the circuit board, thereby reducing the gap between the second bracket surface 32b and the second surface 40b of the circuit board 40 and improving the heat dissipation effect.

[0064] In such a structure, the second resin member 95 may be disposed between the plurality of second electronic components 43 disposed on the first surface 40a of the circuit board 40 and the plurality of second recesses 32b1 in the second bracket surface 32b of the lens barrel bracket 32. This allows the second resin member 85 to be disposed also between the second electronic components 43 and the second recesses 32b1, thereby further improving the heat dissipation effect.

[0065] The second resin member 95 can be disposed so as to surround the imaging element 50 disposed on the first surface 40a of the circuit board 40. This can improve the heat dissipation effect while ensuring the functionality of the imaging element 50.

[0066] 8, at least a portion of second bracket surface 32b of lens barrel bracket 32 ​​may be joined to first surface 40a of circuit board 40 with at least one adhesive 38. This allows circuit board 40 to be stably positioned inside large-diameter cylindrical portion 61 of housing 60.

[0067] Furthermore, the lens barrel bracket 32 ​​has a first hole 32d that corresponds to the optical axis L and penetrates the first bracket surface 32a and the second bracket surface 32b, and the second conductive member 75 has a second hole 76e in the planar portion 76 that corresponds to the first hole 32d of the lens barrel bracket 32.

[0068] As a result, the first hole 32d of the lens barrel bracket 32 ​​and the second hole 76e of the second conductive member 75 correspond to each other, and light can be introduced into the housing 60 from the outside.

[0069] Meanwhile, the bottom surface portion 71 of the first conductive member 70 has a third hole 71e penetrating the bottom surface portion 71, and the housing 60 has a fourth hole 69g that corresponds to the third hole 71e of the first conductive member 70 and penetrates the housing end surface 69. The vehicle-mounted camera 100 is provided with a connector 80 that penetrates the third hole 71e and the fourth hole 69g and is electrically connected to the circuit of the circuit board 40. The first resin member 90 is arranged to surround the connector 80. This allows the connector 80 to ensure electrical connection between the vehicle-mounted camera 100 and the external power source.

[0070] The connector 80 is disposed inside the housing 60 and has a first connector end 81 that is electrically connected to the circuit of the circuit board 40, and a second connector end 82 that is opposite the first connector end 81 and is disposed in a fourth hole 69g of the housing end surface 69 of the housing 60. When the dashcam 100 is disposed in the vehicle V, the second connector end 82 of the connector 80 is electrically connected to the wires of the vehicle V. This allows the connector 80 to ensure an electrical connection between the dashcam 100 and the wires of the vehicle V.

[0071] The first resin member 90 and the second resin member 95 may contain a magnetic material such as ferrite, which allows the resin members to also have a shielding effect.

[0072] The first resin member 90 may be in contact with the second resin member 95. When the first resin member 90 is in contact with the second resin member 95, the heat generated from the circuit board 40 can be conducted to the housing 60 more efficiently.

[0073] As a result, the present disclosure describes at least the following: Note that the components in parentheses correspond to those in the above-described embodiments, but are not limited to these.

[0074] (1) A lens barrel (lens barrel 30) including a first cylindrical portion (first cylindrical portion 31) having a first cylindrical shape along an optical axis (optical axis L) and at least one lens arranged inside the first cylindrical portion and on the optical axis; a circuit board (circuit board 40) having a first surface (first surface 40a) and a second surface (second surface 40b) opposite to the first surface; an image pickup element (image pickup element 50) electrically connected to the circuit of the circuit board and disposed on the first surface of the circuit board on the optical axis; a first conductive member (first conductive member 70) arranged to accommodate at least the circuit board and the imaging element; a resin housing (housing 60) that is arranged to house at least the circuit board and the imaging element and has a second cylindrical portion (large-diameter cylindrical portion 61) that is a second cylindrical shape along the optical axis, The second cylindrical portion of the housing is a housing end surface (housing end surface 69), at least a portion of which faces the second surface of the circuit board and has a first shape including at least a first side (first side 69a), a second side (second side 69b), a third side (third side 69c), and a fourth side (fourth side 69d) in a plan view of the housing; a first wall portion (first wall portion 65a) having a first inner surface (first inner surface 66a) and a first outer surface (first outer surface 67a), and extending from the first side of the housing end surface along the optical axis in a direction away from the housing end surface; a second wall portion (second wall portion 65b) having a second inner surface (second inner surface 66b) and a second outer surface (second outer surface 67b), and extending from the second side of the housing end surface along the optical axis in a direction away from the housing end surface; a third wall portion (third wall portion 65c) having a third inner surface (third inner surface 66c) and a third outer surface (third outer surface 67c), and extending from the third side of the housing end surface along the optical axis in a direction away from the housing end surface; a fourth wall portion (fourth wall portion 65d) having a fourth inner surface (fourth inner surface 66d) and a fourth outer surface (fourth outer surface 67d), and extending from the fourth side of the housing end surface along the optical axis in a direction away from the housing end surface, The first conductive member is a bottom surface portion (bottom surface portion 71) having a second shape, at least a portion of which is located between an inner surface (inner surface 69e) of the housing end surface and an outer surface (outer surface 69f) of the housing end surface, and which includes at least a fifth side (fifth side 71a), a sixth side (sixth side 71b), a seventh side (seventh side 71c), and an eighth side (eighth side 71d) in a plan view of the first conductive member; a first side surface portion (first side surface portion 72a) at least a portion of which extends from the fifth side of the bottom surface portion along the optical axis in a direction away from the bottom surface portion and which is located between the first inner surface and the first outer surface of the first wall portion of the second cylindrical portion of the housing; a second side surface portion (second side surface portion 72b) at least a portion of which extends from the sixth side of the bottom surface portion along the optical axis in a direction away from the bottom surface portion and which is located between the second inner surface and the second outer surface of the second wall portion of the second cylindrical portion of the housing; a third side surface portion (third side surface portion 72c) at least a portion of which extends along the optical axis from the seventh side of the bottom surface portion in a direction away from the bottom surface portion and which is located between the third inner surface and the third outer surface of the third wall portion of the second cylindrical portion of the housing; and a fourth side surface portion (fourth side surface portion 72d) at least a portion of which extends from the eighth side of the bottom surface portion along the optical axis in a direction away from the bottom surface portion and which is located between the fourth inner surface and the fourth outer surface of the fourth wall portion of the second cylindrical portion of the housing. An in-vehicle camera (in-vehicle camera 100). As a result, the first conductive member housing at least the circuit board and the imaging element has a bottom surface and a side surface. At least a portion of the bottom surface is disposed between the inner surface of the housing end face and the outer surface of the housing end face, and at least a portion of the side surface is disposed between the inner surface and the outer surface of the wall of the second cylindrical portion of the housing. This reduces the distance between the inner surface of the housing and components such as the circuit board disposed inside the housing, thereby improving heat dissipation.

[0075] (2) The vehicle-mounted camera according to (1), a first end (first end 73a) of the first side surface portion of the first conductive member is exposed to the inside of the housing from a part of the first inner surface of the first wall portion of the second cylindrical portion of the housing, a second end (second end 73b) of the second side surface portion of the first conductive member is exposed to the interior of the housing from a part of the second inner surface of the second wall portion of the second cylindrical portion of the housing, a third end (third end 73c) of the third side surface portion of the first conductive member is exposed to the interior of the housing from a part of the third inner side surface of the third wall portion of the second cylindrical portion of the housing, a fourth end (fourth end 73d) of the fourth side surface portion of the first conductive member is exposed to the interior of the housing from a part of the fourth inner side surface of the fourth wall portion of the second cylindrical portion of the housing; In-car camera. This exposes the end of the side surface of the first conductive member to the inside of the housing, ensuring connection with other conductive members and increasing the degree of freedom in designing the shielding effect of the conductive members.

[0076] (3) The vehicle-mounted camera according to (2), further comprising a second conductive member (second conductive member 75) at least a portion of which is disposed between the lens barrel and the circuit board; The second conductive member is a planar portion (planar portion 76) having a third shape including at least a ninth side (ninth side 76a), a tenth side (tenth side 76b), an eleventh side (eleventh side 76c), and a twelfth side (twelfth side 76d) in a plan view of the second conductive member; a first contact portion (first contact portion 77a) that contacts the first end portion of the first side surface portion of the first conductive member via a first contact (first contact portion 77a1); In-car camera. This provides a second conductive member that contacts the first conductive member, thereby improving the shielding effect.

[0077] (4) The vehicle-mounted camera according to (3), The second conductive member is a second contact portion (second contact portion 77b) that contacts the second end portion of the second side surface portion of the first conductive member via a second contact (second contact portion 77b1); a third contact portion (third contact portion 77c) that contacts the third end portion of the third side surface portion of the first conductive member via a third contact (third contact portion 77c1); and a fourth contact portion (fourth contact portion 77d) that contacts the fourth end portion of the fourth side surface portion of the first conductive member via a fourth contact (fourth contact portion 77d1). In-car camera. This allows the second conductive member to contact the first conductive member via at least four contact points, thereby ensuring the shielding effect of the second conductive member.

[0078] (5) The vehicle-mounted camera according to (4), The second conductive member is a first protruding portion (first protruding portion 78a) protruding from a first portion (first portion 76a1) of the ninth side of the planar portion toward an inner surface of the first end portion of the first conductive member; a second protruding portion (second protruding portion 78b) protruding from a second portion (second portion 76b1) of the tenth side of the planar portion toward an inner surface of the second end portion of the first conductive member; a third protruding portion (third protruding portion 78c) protruding from a third portion (third portion 76c1) of the eleventh side of the planar portion toward an inner surface of the third end portion of the first conductive member; a fourth protrusion (fourth protrusion 78d) protruding from a fourth portion (fourth portion 76d1) of the twelfth side of the planar portion toward an inner surface of the fourth end portion of the first conductive member, the first end of the first side surface portion of the first conductive member contacts the first protrusion of the second conductive member via the first contact point; the second end of the second side surface portion of the first conductive member contacts the second protrusion of the second conductive member via the second contact point; the third end of the third side surface portion of the first conductive member contacts the third protrusion of the second conductive member via the third contact point; the fourth end of the fourth side surface portion of the first conductive member contacts the fourth protrusion of the second conductive member via the fourth contact point; In-car camera. This allows the protruding portion protruding from the planar portion of the second conductive member to contact the end of the side portion of the first conductive member via the contact point, thereby making the contact between the first conductive member and the second conductive member more reliable.

[0079] (6) The vehicle-mounted camera according to (1), the circuit board has a fourth shape including at least a thirteenth side (thirteenth side 41a), a fourteenth side (fourteenth side 41b), a fifteenth side (fifteenth side 41c), and a sixteenth side (sixteenth side 41d) in a plan view of the circuit board; the circuit board has a first circuit board end face (first circuit board end face 41a1) corresponding to the thirteenth side, a second circuit board end face (second circuit board end face 41b1) corresponding to the fourteenth side, a third circuit board end face (third circuit board end face 41c1) corresponding to the fifteenth side, and a fourth circuit board end face (fourth circuit board end face 41d1) corresponding to the sixteenth side, at least a part of the first inner surface of the first wall portion of the second cylindrical portion of the housing faces the first circuit board end surface of the circuit board, at least a part of the second inner surface of the second wall portion of the second cylindrical portion of the housing faces the second circuit board end surface of the circuit board, at least a part of the third inner surface of the third wall portion of the second cylindrical portion of the housing faces the third circuit board end surface of the circuit board, At least a part of the fourth inner surface of the fourth wall portion of the second cylindrical portion of the housing faces the fourth circuit board end surface of the circuit board. In-car camera. This allows the circuit board to be efficiently arranged inside the second cylindrical portion of the housing.

[0080] (7) The vehicle-mounted camera according to (1), The device further includes a first resin member (first resin member 90) having a predetermined thermal conductivity and disposed at least between the second surface of the circuit board and the inner surface of the housing end surface of the housing. In-car camera. This allows the first resin member to reduce the space between the second surface of the circuit board and the inner surface of the end surface of the housing, thereby further improving the heat dissipation effect of heat generated by internal components.

[0081] (8) The vehicle-mounted camera according to (6), The first resin member is a space between the first inner surface of the first wall portion of the second cylindrical portion of the housing and the first circuit board end surface of the circuit board; a space between the second inner surface of the second wall portion of the second cylindrical portion of the housing and the second circuit board end surface of the circuit board; a space between the third inner surface of the third wall portion of the second cylindrical portion of the housing and the third circuit board end surface of the circuit board; and disposed between the fourth inner surface of the fourth wall portion of the second cylindrical portion of the housing and the fourth circuit board end surface of the circuit board. In-car camera. This allows the first resin member to be disposed also between the inner surface of the wall portion of the second cylindrical portion of the housing and the end surface of the circuit board, thereby further improving the heat dissipation effect.

[0082] (9) The vehicle-mounted camera according to (7), the inner surface of the housing end face of the housing has a plurality of first recesses (first recesses 69e1) corresponding to a plurality of first electronic components (first electronic components 42) arranged on the second surface of the circuit board; In-car camera. This allows the first recess on the inner surface of the housing end face to correspond to the first electronic component arranged on the second surface of the circuit board, thereby reducing the gap between the inner surface of the housing end face and the second surface of the circuit board and improving heat dissipation.

[0083] (10) The vehicle-mounted camera according to (9), the first resin member is disposed between the plurality of first electronic components disposed on the second surface of the circuit board and the plurality of first recesses on the inner surface of the housing end surface of the housing; In-car camera. This allows the first resin member to be disposed also between the first electronic component and the first recess, thereby further improving the heat dissipation effect.

[0084] (11) The vehicle-mounted camera according to (5), further comprising a lens barrel bracket (lens barrel bracket 32) made of resin, at least a portion of which is disposed between the lens barrel and the first surface of the circuit board; The lens barrel bracket is a first bracket surface (first bracket surface 32a); a second bracket surface (second bracket surface 32b) opposite the first bracket surface and at least a portion of which faces the first surface of the circuit board; a bracket end surface (bracket end surface 32c) that connects the first bracket surface and the second bracket surface and has at least a first bracket end surface (first bracket end surface 32c1), a second bracket end surface (second bracket end surface 32c2), a third bracket end surface (third bracket end surface 32c3), and a fourth bracket end surface (fourth bracket end surface 32c4); at least a portion of the planar portion of the second conductive member is located between the first bracket surface and the second bracket surface of the lens barrel bracket; At least a portion of the first protrusion of the second conductive member is exposed from an end surface of the first bracket, At least a portion of the second protrusion of the second conductive member is exposed from an end surface of the second bracket, at least a portion of the third protrusion of the second conductive member is exposed from an end surface of the third bracket; At least a portion of the fourth protrusion of the second conductive member is exposed from an end surface of the fourth bracket. In-car camera. This means that at least a portion of the planar portion of the second conductive member is positioned inside the lens barrel bracket, thereby reducing the distance between the second bracket surface of the lens barrel bracket and components such as a circuit board that are positioned inside the housing, thereby improving heat dissipation.

[0085] (12) The vehicle-mounted camera according to (11), Further comprising a second resin member (second resin member 95) having a predetermined thermal conductivity and disposed at least between the first surface of the circuit board and the second bracket surface of the lens barrel bracket, In-car camera. This reduces the space between the first surface of the circuit board and the second bracket surface of the lens barrel bracket, and further improves the heat dissipation effect of heat generated by internal components.

[0086] (13) The vehicle-mounted camera according to (12), the second bracket surface of the lens barrel bracket has a plurality of second recesses (second recesses 32b1) corresponding to a plurality of second electronic components (second electronic components 43) arranged on the first surface of the circuit board; In-car camera. This allows the second recess in the second bracket surface to correspond to the second electronic component arranged on the first surface of the circuit board, thereby reducing the gap between the second bracket surface and the second surface of the circuit board and improving heat dissipation.

[0087] (14) The vehicle-mounted camera according to (13), the second resin member is disposed between the plurality of second electronic components disposed on the first surface of the circuit board and the plurality of second recesses on the second bracket surface of the lens barrel bracket; In-car camera. This allows the second resin member to be disposed also between the second electronic component and the second recess, thereby further improving the heat dissipation effect.

[0088] (15) The vehicle-mounted camera according to (12), the second resin member is disposed so as to surround the imaging element disposed on the first surface of the circuit board; In-car camera. This makes it possible to improve the heat dissipation effect while ensuring the functionality of the imaging element.

[0089] (16) The vehicle-mounted camera according to (11), At least a portion of the second bracket surface of the lens barrel bracket is bonded to the first surface of the circuit board by at least one adhesive (adhesive 38). In-car camera. This allows the circuit board to be stably disposed inside the second cylindrical portion of the housing.

[0090] (17) The vehicle-mounted camera according to (11), the lens barrel bracket has a first hole (first hole 32d) that corresponds to the optical axis and penetrates the first bracket surface and the second bracket surface, The second conductive member has a second hole (second hole 76e) in the planar portion corresponding to the first hole. In-car camera. This allows the first hole in the lens barrel bracket to correspond to the second hole in the second conductive member, allowing light from outside to be introduced into the housing.

[0091] (18) The vehicle-mounted camera according to (17), the bottom surface portion of the first conductive member has a third hole (third hole 71e) penetrating the bottom surface portion, the housing has a fourth hole (fourth hole 69g) that corresponds to the third hole and penetrates the housing end surface, a connector (connector 80) that passes through the third hole and the fourth hole and is electrically connected to the circuit of the circuit board, The first resin member is disposed so as to surround the connector. In-car camera. This allows the connector to ensure electrical connection between the vehicle-mounted camera and the external power source.

[0092] (19) The vehicle-mounted camera according to (18), The connector comprises: a first connector end (first connector end 81) disposed inside the housing and electrically connected to the circuit of the circuit board; a second connector end (second connector end 82) opposite the first connector end and disposed in the fourth hole in the housing end surface of the housing; When the in-vehicle camera is disposed in a vehicle, the second connector end of the connector is electrically connected to a wire of the vehicle. In-car camera. This allows the connector to ensure an electrical connection between the vehicle-mounted camera and the vehicle wires.

[0093] (20) The vehicle-mounted camera according to (12), the first resin member and the second resin member contain a magnetic material; In-car camera. This allows the resin member to also have a shielding effect.

[0094] Although the embodiments have been described above with reference to the accompanying drawings, the present disclosure is not limited to such examples. It will be apparent to those skilled in the art that various modifications, alterations, substitutions, additions, deletions, and equivalents may be made within the scope of the claims, and it is understood that these also fall within the technical scope of the present disclosure. Furthermore, the components of the above-described embodiments may be combined in any manner without departing from the spirit of the invention. [Industrial Applicability]

[0095] The present disclosure is useful as an in-vehicle camera that can reduce the distance between the inner surface of the housing and components such as a circuit board arranged inside the housing, thereby improving heat dissipation. [Explanation of symbols]

[0096] 11 Housing module 12 Bracket Module 20 Ring member 30 Lens barrel 31 First cylindrical portion 32 Lens barrel bracket 32a First bracket surface 32b Second bracket surface 32b1 Second recess 32c Bracket end face 32c1 First bracket end face 32c2 End face of second bracket 32c3 Third bracket end face 32c4 End face of 4th bracket 32d 1st hole 38 Adhesive 40 Circuit Board 40a Page 1 40b 2nd side 41a Side 13 41a1 1st circuit board end surface 41b Side 14 41b1 2nd circuit board end surface 41c Side 15 41c1 3rd circuit board end surface 41d Side 16 41d1 End face of 4th circuit board 42 First Electronic Parts 43 Secondary Electronic Components 50 imaging element 60 cabinets 61 large diameter cylindrical portion (second cylindrical portion) 62 Small diameter cylindrical part 63a First housing end 63b Second housing end 63c Third housing end 63d End of the fourth housing 64a First housing protrusion 64b Second housing protrusion 64c Third housing protrusion 64d Fourth housing protrusion 65a 1st wall 65b 2nd wall section 65c Third wall 65d 4th wall section 66a 1st inner surface 66b Second inner surface 66c Third inner surface 66d 4th inner surface 67a 1st outer surface 67b Second outer surface 67c Third outer surface 67d 4th outer surface 69 Housing end face 69a Side 1 69b Side 2 69c Third side 69d Side 4 69e Inside 69e1 First recess 69f Exterior 69g 4th hole 70 First conductive member 71 Bottom part 71a Side 5 71b Side 6 71c Side 7 71d Side 8 71e 3rd hole 72a 1st side part 72b 2nd side part 72c 3rd side part 72d Fourth side part 73a First end 73b Second end 73c 3rd end 73d 4th end 75 second conductive member 76 Planar part 76a Side 9 76a1 Part 1 76b Side 10 76b1 2nd part 76c Side 11 76c1 3rd part 76d Side 12 76d1 4th part 76e 2nd hole 77a 1st contact part 77a1 First contact 77b 2nd contact part 77b1 2nd contact 77c 3rd contact part 77c1 3rd contact 77d 4th contact part 77d1 Fourth contact 78a 1st protrusion 78b Second protrusion 78c 3rd protrusion 78d 4th protrusion 80 Connector 81 First connector end 82 Second connector end 90 First resin member 95 Second resin member 100 In-car camera

Claims

1. a lens barrel including a first cylindrical portion having a first cylindrical shape along an optical axis, and at least one lens disposed inside the first cylindrical portion and on the optical axis; a circuit board having a first surface and a second surface opposite the first surface; an imaging element electrically connected to a circuit on the circuit board and disposed on the first surface of the circuit board on the optical axis; a first conductive member arranged to accommodate at least the circuit board and the imaging element; a resin housing arranged to house at least the circuit board and the imaging element, the housing including a second cylindrical portion having a second cylindrical shape along the optical axis, The second cylindrical portion of the housing is a housing end surface having a first shape including at least a first side, a second side, a third side, and a fourth side in a plan view of the housing, at least a portion of which faces the second surface of the circuit board; a first wall portion having a first inner surface and a first outer surface, and extending from the first side of the housing end surface along the optical axis in a direction away from the housing end surface; a second wall portion having a second inner surface and a second outer surface, and extending from the second side of the housing end surface along the optical axis in a direction away from the housing end surface; a third wall portion having a third inner surface and a third outer surface, and extending from the third side of the housing end surface along the optical axis in a direction away from the housing end surface; a fourth wall portion having a fourth inner surface and a fourth outer surface, the fourth wall portion extending from the fourth side of the housing end surface along the optical axis in a direction away from the housing end surface, The first conductive member is a bottom surface portion, at least a portion of which is located between the inner surface of the housing end surface and the outer surface of the housing end surface, and which has a second shape including at least a fifth side, a sixth side, a seventh side, and an eighth side in a plan view of the first conductive member; a first side surface portion, at least a portion of which extends from the fifth side of the bottom surface portion along the optical axis in a direction away from the bottom surface portion, and which is located between the first inner surface and the first outer surface of the first wall portion of the second cylindrical portion of the housing; a second side surface portion, at least a portion of which extends from the sixth side of the bottom surface portion along the optical axis in a direction away from the bottom surface portion, and which is located between the second inner surface and the second outer surface of the second wall portion of the second cylindrical portion of the housing; a third side surface portion, at least a portion of which extends from the seventh side of the bottom surface portion along the optical axis in a direction away from the bottom surface portion, and which is located between the third inner surface and the third outer surface of the third wall portion of the second cylindrical portion of the housing; a fourth side surface portion, at least a portion of which extends from the eighth side of the bottom surface portion along the optical axis in a direction away from the bottom surface portion, and which is located between the fourth inner surface and the fourth outer surface of the fourth wall portion of the second cylindrical portion of the housing; In-car camera.

2. The vehicle-mounted camera according to claim 1, a first end of the first side surface portion of the first conductive member is exposed to an interior of the housing from a part of the first inner surface of the first wall portion of the second cylindrical portion of the housing; a second end of the second side surface portion of the first conductive member is exposed to the interior of the housing from a part of the second inner surface of the second wall portion of the second cylindrical portion of the housing, a third end of the third side surface portion of the first conductive member is exposed to the interior of the housing from a part of the third inner surface of the third wall portion of the second cylindrical portion of the housing, a fourth end portion of the fourth side surface portion of the first conductive member is exposed to the interior of the housing from a part of the fourth inner surface of the fourth wall portion of the second cylindrical portion of the housing; In-car camera.

3. The vehicle-mounted camera according to claim 2, a second conductive member at least a portion of which is disposed between the lens barrel and the circuit board; The second conductive member is a planar portion having a third shape including at least a ninth side, a tenth side, an eleventh side, and a twelfth side in a plan view of the second conductive member; a first contact portion that contacts the first end portion of the first side surface portion of the first conductive member via a first contact point; In-car camera.

4. The vehicle-mounted camera according to claim 3, The second conductive member is a second contact portion that contacts the second end portion of the second side surface portion of the first conductive member via a second contact point; a third contact portion that contacts the third end portion of the third side surface portion of the first conductive member via a third contact point; a fourth contact portion that contacts the fourth end portion of the fourth side surface portion of the first conductive member via a fourth contact point. In-car camera.

5. The vehicle-mounted camera according to claim 4, The second conductive member is a first protrusion protruding from a first portion of the ninth side of the planar portion toward an inner surface of the first end portion of the first conductive member; a second protruding portion protruding from a second portion of the tenth side of the planar portion toward an inner surface of the second end portion of the first conductive member; a third protruding portion protruding from a third portion of the eleventh side of the planar portion toward an inner surface of the third end portion of the first conductive member; a fourth protrusion protruding from a fourth portion of the twelfth side of the planar portion toward an inner surface of the fourth end portion of the first conductive member, the first end of the first side surface portion of the first conductive member contacts the first protruding portion of the second conductive member via the first contact point; the second end of the second side surface portion of the first conductive member contacts the second protruding portion of the second conductive member via the second contact point; the third end of the third side surface portion of the first conductive member contacts the third protrusion of the second conductive member via the third contact point; the fourth end of the fourth side surface portion of the first conductive member contacts the fourth protrusion of the second conductive member via the fourth contact point; In-car camera.

6. The vehicle-mounted camera according to claim 5, the circuit board has a fourth shape including at least a thirteenth side, a fourteenth side, a fifteenth side, and a sixteenth side in a plan view of the circuit board, the circuit board has a first circuit board end surface corresponding to the thirteenth side, a second circuit board end surface corresponding to the fourteenth side, a third circuit board end surface corresponding to the fifteenth side, and a fourth circuit board end surface corresponding to the sixteenth side; at least a part of the first inner surface of the first wall portion of the second cylindrical portion of the housing faces the first circuit board end surface of the circuit board, at least a part of the second inner surface of the second wall portion of the second cylindrical portion of the housing faces the second circuit board end surface of the circuit board, at least a part of the third inner surface of the third wall portion of the second cylindrical portion of the housing faces the third circuit board end surface of the circuit board, at least a part of the fourth inner surface of the fourth wall portion of the second cylindrical portion of the housing faces the fourth circuit board end surface of the circuit board; In-car camera.

7. The vehicle-mounted camera according to claim 6, a first resin member having a predetermined thermal conductivity and disposed at least between the second surface of the circuit board and the inner surface of the housing end surface of the housing; In-car camera.

8. The vehicle-mounted camera according to claim 7, The first resin member is a space between the first inner surface of the first wall portion of the second cylindrical portion of the housing and the first circuit board end surface of the circuit board; a space between the second inner surface of the second wall portion of the second cylindrical portion of the housing and the second circuit board end surface of the circuit board; a space between the third inner surface of the third wall portion of the second cylindrical portion of the housing and the third circuit board end surface of the circuit board; the fourth inner surface of the fourth wall portion of the second cylindrical portion of the housing and the fourth circuit board end surface of the circuit board, In-car camera.

9. The vehicle-mounted camera according to claim 7, the inner surface of the housing end surface of the housing has a plurality of first recesses corresponding to a plurality of first electronic components arranged on the second surface of the circuit board; In-car camera.

10. The vehicle-mounted camera according to claim 9, the first resin member is disposed between the plurality of first electronic components disposed on the second surface of the circuit board and the plurality of first recesses on the inner surface of the housing end surface of the housing; In-car camera.

11. The vehicle-mounted camera according to claim 7, a lens barrel bracket made of resin, at least a portion of which is disposed between the lens barrel and the first surface of the circuit board; The lens barrel bracket is a first bracket surface; a second bracket surface opposite the first bracket surface and at least a portion of which faces the first surface of the circuit board; a bracket end surface connecting the first bracket surface and the second bracket surface and having at least a first bracket end surface, a second bracket end surface, a third bracket end surface, and a fourth bracket end surface; at least a portion of the planar portion of the second conductive member is located between the first bracket surface and the second bracket surface of the lens barrel bracket; At least a portion of the first protrusion of the second conductive member is exposed from an end surface of the first bracket, At least a portion of the second protrusion of the second conductive member is exposed from an end surface of the second bracket, at least a portion of the third protrusion of the second conductive member is exposed from an end surface of the third bracket; At least a portion of the fourth protrusion of the second conductive member is exposed from an end surface of the fourth bracket. In-car camera.

12. The vehicle-mounted camera according to claim 11, a second resin member having a predetermined thermal conductivity and disposed at least between the first surface of the circuit board and the second bracket surface of the lens barrel bracket; In-car camera.

13. The vehicle-mounted camera according to claim 12, the second bracket surface of the lens barrel bracket has a plurality of second recesses corresponding to a plurality of second electronic components arranged on the first surface of the circuit board; In-car camera.

14. The vehicle-mounted camera according to claim 13, the second resin member is disposed between the plurality of second electronic components disposed on the first surface of the circuit board and the plurality of second recesses on the second bracket surface of the lens barrel bracket; In-car camera.

15. The vehicle-mounted camera according to claim 12, the second resin member is disposed so as to surround the imaging element disposed on the first surface of the circuit board; In-car camera.

16. The vehicle-mounted camera according to claim 11, at least a portion of the second bracket surface of the lens barrel bracket is bonded to the first surface of the circuit board by at least one adhesive; In-car camera.

17. The vehicle-mounted camera according to claim 11, the lens barrel bracket has a first hole that corresponds to the optical axis and penetrates the first bracket surface and the second bracket surface; the second conductive member has a second hole in the planar portion corresponding to the first hole; In-car camera.

18. The vehicle-mounted camera according to claim 17, the bottom surface portion of the first conductive member has a third hole penetrating the bottom surface portion, the housing has a fourth hole corresponding to the third hole and penetrating the end surface of the housing; a connector that passes through the third hole and the fourth hole and is electrically connected to the circuit of the circuit board, The first resin member is disposed so as to surround the connector. In-car camera.

19. The vehicle-mounted camera according to claim 18, The connector comprises: a first connector end portion disposed within the housing and electrically connected to the circuit of the circuit board; a second connector end opposite the first connector end and disposed in the fourth hole in the housing end surface of the housing; When the dashcam is installed in a vehicle, the second connector end of the connector is electrically connected to a wire of the vehicle. In-car camera.

20. The vehicle-mounted camera according to claim 12, the first resin member and the second resin member contain a magnetic material; In-car camera.

Citation Information

Patent Citations

  • Electronic apparatus case

    JP2017147648A

  • US2010/367984

  • US2010/506141

  • US2010/694090