On-vehicle camera

Abstract

To provide an on-vehicle camera which can efficiently dissipate heat generated inside a housing.SOLUTION: An on-vehicle camera includes a lens unit, a circuit board, an imaging element, a conductive member arranged so as to house at least the circuit board and the imaging element, a housing for housing at least the circuit board, the imaging element and the conductive member, and a resin member which includes predetermined heat conductivity, and is arranged between at least a second surface of the circuit board and a bottom face part of the conductive member. The resin member passes through a first hole of a first planar part of the conductive member, and is brought into contact with a first inside surface of a large-diameter cylindrical part of the housing. The resin member passes through a second hole of a second planar part of the conductive member, and is brought into contact with a second inside surface of the large diameter cylindrical part of the housing. The resin member passes through a third hole of a third planar part of the conductive member, and is brought into contact with a third inside surface of a large diameter cylindrical part of a housing. The resin member passes through a fourth hole of a fourth planar part of the conducive member, and is brought into contact with a fourth inside surface of the large diameter cylindrical part of the housing.SELECTED DRAWING: Figure 10

Description

[Technical Field]

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

[0002] 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 Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2021 / 125074 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 unit including a first cylindrical portion having a first cylindrical shape and at least one lens arranged inside the first cylindrical portion and on an 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 of the circuit board and arranged on the first surface of the circuit board on the optical axis; a conductive member arranged to accommodate at least the circuit board and the imaging element; and a housing that accommodates at least the circuit board, the imaging element, and the conductive member, wherein the housing has at least a first inner surface, a second inner surface, a second cylindrical portion having a second cylindrical shape and a third inner side surface and a fourth inner side surface; a first housing end portion disposed between the first cylindrical portion of the lens unit and the circuit board; and a second housing end portion opposite the first housing end portion in a first direction that is a direction along the optical axis and at least a portion of the second housing end portion facing the second surface of the circuit board, wherein the conductive member has a bottom surface at least a portion of which faces the second surface of the circuit board and is disposed at the second housing end portion of the housing, 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 conductive member. a first planar portion extending from the first side of the bottom portion in a second direction that is a direction away from the second housing end of the housing and disposed along the first inner side surface of the second cylindrical portion of the housing; a second planar portion extending from the second side of the bottom portion in the second direction and disposed along the second inner side surface of the second cylindrical portion of the housing; a third planar portion extending from the third side of the bottom portion in the second direction and disposed along the third inner side surface of the second cylindrical portion of the housing; and a fourth planar portion extending from the fourth side of the bottom portion in the second direction and disposed along the second inner side surface of the second cylindrical portion of the housing. the second cylindrical portion of the housing further includes a resin member having a predetermined thermal conductivity and disposed at least between the second surface of the circuit board and the bottom surface of the conductive member, the resin member having a fourth planar portion disposed along the fourth inner side surface of the second cylindrical portion of the housing, at least one first hole penetrating the first planar portion, at least one second hole penetrating the second planar portion, at least one third hole penetrating the third planar portion, and at least one fourth hole penetrating the fourth planar portion, the resin member having a predetermined thermal conductivity and disposed at least between the second surface of the circuit board and the bottom surface of the conductive member, the resin member passing through the first hole in the first planar portion of the conductive member and contacting the first inner side surface of the second cylindrical portion of the housing;The conductive member passes through the second hole in the second planar portion of the conductive member and contacts the second inner surface of the second cylindrical portion of the housing, passes through the third hole in the third planar portion of the conductive member and contacts the third inner surface of the second cylindrical portion of the housing, and passes through the fourth hole in the fourth planar portion of the conductive member and contacts the fourth inner surface of the second cylindrical portion of the housing. [Effects of the Invention]

[0007] According to the present disclosure, the resin member contacts the inner surface of the housing through the hole in the conductive member, so that heat generated inside the housing can be efficiently dissipated. Also, by appropriately designing the hole in the conductive member in consideration of the noise shielding effect, it is possible to prevent noise from passing through the hole and to prevent a decrease in sealing performance. [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 a side view of an in-vehicle camera according to an embodiment; [Figure 10] Cross-sectional view taken along line II in Figure 9 [Figure 11] 1 is a bottom view of an in-vehicle camera according to an embodiment; [Figure 12] Cross-sectional view taken along line II-II in Figure 11 [Figure 13A] 1 is a top perspective view of a conductive member according to a first embodiment; [Figure 13B] 1 is a bottom perspective view of a conductive member according to a first embodiment; [Figure 14A] 10 is a top perspective view of a conductive member according to a second embodiment of the present invention; [Figure 14B] 10 is a bottom perspective view of the conductive member of the second embodiment; [Figure 15A] 10 is a top perspective view of a conductive member according to a third embodiment; [Figure 15B] 10 is a bottom perspective view of the conductive member of the third embodiment; [Figure 16A] 10 is a top perspective view of a conductive member according to a fourth embodiment of the present invention; [Figure 16B] 10 is a bottom perspective view of the conductive member of the fourth embodiment; [Figure 17] 1 is a simulation diagram showing the heat distribution when a conventional vehicle-mounted camera and an embodiment of the vehicle-mounted camera are energized. 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) FIG. 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 a field of view of, for example, about 180°, and are positioned so that the entire periphery of vehicle V can be captured.

[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 a side view of the vehicle-mounted camera 100 according to the embodiment. Fig. 10 is a cross-sectional view taken along line II in Fig. 9. Fig. 11 is a bottom view of the vehicle-mounted camera 100 according to the embodiment. Fig. 12 is a cross-sectional view taken along line II-II in Fig. 11. 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 explanation.

[0015] The vehicle-mounted camera 100 of this embodiment includes a ring member 20, a lens unit 30, a circuit board 40, an imaging element 50, a housing 60, a conductive member 70, and a resin member 90.

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

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

[0018] The lens unit 30 includes a first cylindrical portion 31 that forms 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. 11 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 optical axes L aligned, and form a lens group used to capture images of the inside and outside of the body of the vehicle V.

[0019] Furthermore, the lens unit 30 has a flange portion 32 arranged on the outside of the first cylindrical portion 31, extending outward around the entire circumference centered on the optical axis L. The flange portion 32 has a first flange surface 32a facing the ring member 20, a second flange surface 32b opposite the first flange surface 32a and positioned in the internal space of a large-diameter cylindrical portion 61 (described later) of the housing 60, and a flange end surface 32c connecting the first flange surface 32a and the second flange surface 32b.

[0020] At least the flange portion 32 of the lens unit 30 can be molded from the second resin. The entire lens unit 30 may also be molded from the second resin. This allows the lens unit 30 to be molded easily and at low cost.

[0021] 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 to the first surface 40a. However, two or more circuit boards may be provided.

[0022] In a plan view of the circuit board 40 (a shape viewed in a direction along the Z axis, which is the direction of the optical axis L; the same applies below), the circuit board 40 has at least a fifth side 41, a sixth side 42, a seventh side 43, and an eighth side 44. The circuit board 40 has, for example, a rectangular shape. The circuit board 40 is located between the first surface 40a and the second surface 40b and has at least a first end face 40c1 corresponding to the fifth side 41, a second end face 40c2 corresponding to the sixth side 42, a third end face 40c3 corresponding to the seventh side 43, and a fourth end face 40c4 corresponding to the eighth side 44.

[0023] The imaging element 50 is disposed on the first surface 40a of the circuit board 40, on the optical axis L of at least one lens of the lens unit 30. The imaging element 50 is electrically connected to the circuit of the circuit board 40, and is capable of capturing an image by guiding external light to the imaging element 50.

[0024] The conductive member 70 is arranged to house the circuit board 40 and the imaging element 50 in the internal space of the housing 60. The conductive member 70 serves to block electromagnetic noise coming from outside the housing 60 and electromagnetic noise radiated within the internal space. The conductive member 70 may be made of, for example, metal or a resin member having electrical conductivity.

[0025] The housing 60 is a cylindrical member with an internal space, supports the lens unit 30, and accommodates at least the circuit board 40, the image sensor 50, and the conductive member 70. The housing 60 includes 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 accommodates at least the circuit board 40, the image sensor 50, and the conductive member 70. The small-diameter cylindrical portion 62 accommodates 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. In this embodiment, the housing 60 is a rectangular cylinder, but is not limited to this and may be a cylinder of a polygon other than a rectangle, such as a triangle or a polygon with pentagons or more sides, a circle or an ellipse, or any other shape.

[0026] The large-diameter cylindrical portion 61 of the housing 60 is configured by a first wall portion 65a, a second wall portion 65b, a third wall portion 65c, and a fourth wall portion 65d. The first inner surface 66a corresponds to the inner surface of the first wall portion 65a, the second inner surface 66b corresponds to the inner surface of the second wall portion 65b, the third inner surface 66c corresponds to the inner surface of the third wall portion 65c, and the fourth inner surface 66d corresponds to the inner surface of the fourth wall portion 65d.

[0027] Furthermore, the large diameter cylindrical portion 61 has a first housing end 63 arranged between the first cylindrical portion 31 of the lens unit 30 and the circuit board 40, and a second housing end 64 located opposite the first housing end 63 in the first direction along the optical axis L, and at least a portion of which faces the second surface 40b of the circuit board 40.

[0028] At least the first housing end 63 of the housing 60 can be molded from the third resin. The entire housing 60 may be molded from the third resin. This allows the housing 60 to be molded easily and at low cost.

[0029] The conductive member 70 will now be described again. The conductive member 70 has a flat bottom surface portion 71. At least a portion of the bottom surface portion 71 faces the second surface 40b of the circuit board 40, is disposed at the second housing end portion 64 of the housing 60, and has a first shape including at least a first side 71a, a second side 71b, a third side 71c, and a fourth side 71d in a plan view of the conductive member 70. Furthermore, the conductive member 70 has a first planar portion 72a, a second planar portion 72b, a third planar portion 72c, and a fourth planar portion 72d that extend from the bottom surface portion 71 like walls.

[0030] The first planar portion 72a extends from the first side 71a of the bottom surface portion 71 in the second direction, which is a direction away from the second housing end portion 64 of the housing 60, and is disposed along the first inner side surface 66a of the large-diameter cylindrical portion 61 of the housing 60. The second planar portion 72b extends from the second side 71b of the bottom surface portion 71 in the second direction and is disposed along the second inner side surface 66b of the large-diameter cylindrical portion 61 of the housing 60. The third planar portion 72c extends from the third side 71c of the bottom surface portion 71 in the second direction and is disposed along the third inner side surface 66c of the large-diameter cylindrical portion 61 of the housing 60. The fourth planar portion 72d extends from the fourth side 71d of the bottom surface portion 71 in the second direction and is disposed along the fourth inner side surface 66d of the large-diameter cylindrical portion 61 of the housing 60.

[0031] Furthermore, the conductive member 70 has at least one first hole 73a penetrating the first planar portion 72a, at least one second hole 73b penetrating the second planar portion 72b, at least one third hole 73c penetrating the third planar portion 72c, and at least one fourth hole 73d penetrating the fourth planar portion 72d.

[0032] The resin member 90 is a member made of resin with a predetermined thermal conductivity, and is disposed at least between the second surface 40b of the circuit board 40 and the bottom surface portion 71 of the conductive member 70. The resin member 90 is formed from, for example, a silicone resin.

[0033] The resin member 90 passes through the first hole 73a of the first planar portion 72a of the conductive member 70 and contacts the first inner surface 66a of the large-diameter cylindrical portion 61 of the housing 60. The resin member 90 passes through the second hole 73b of the second planar portion 72b of the conductive member 70 and contacts the second inner surface 66b of the large-diameter cylindrical portion 61 of the housing 60. The resin member 90 passes through the third hole 73c of the third planar portion 72c of the conductive member 70 and contacts the third inner surface 66c of the large-diameter cylindrical portion 61 of the housing 60. The resin member 90 passes through the fourth hole 73d of the fourth planar portion 72d of the conductive member 70 and contacts the fourth inner surface 66d of the large-diameter cylindrical portion 61 of the housing 60.

[0034] The resin member 90 is a solid, gel-like member having a predetermined fluidity. When assembling the vehicle-mounted camera 100, the resin member 90 is placed on the bottom surface 71 of the conductive member 70, and then components such as the circuit board 40 are placed on the upper surface. The resin member 90 is deformed by applying pressure from above. The resin member 90 deforms so as to expand radially outward in a direction perpendicular to the optical axis L. When the resin member 90 reaches the first, second, third, and fourth planar portions 72a, 72b, 72c, and 72d, it protrudes from the first, second, third, and fourth holes 73a, 73b, 73c, and 73d. The protruding portions become protruding portions 91 (see FIG. 8 ), which contact the first, second, third, and fourth inner surfaces 66a, 66b, 66c, and 66d of the large-diameter cylindrical portion 61 of the housing 60. 8 is an exploded perspective view before assembly, but shows the shape of the resin member 90 after deformation, not the shape before assembly, and the protrusion 91 does not exist before actual assembly. Also, a through-hole 92 is formed in advance in the bottom surface of the resin member 90 before assembly, and a predetermined opening area is ensured even after the resin member 90 is deformed.

[0035] Because the vehicle-mounted camera 100 processes large amounts of data, components such as the circuit board 40 generate heat. Efficient dissipation of this heat is an important issue. In the vehicle-mounted camera 100 according to this embodiment, the resin member 90 passes through the holes (first hole 73a to fourth hole 73d) of the conductive member 70 and comes into contact with the inner surfaces (first inner surface 66a to fourth inner surface 66d) of the housing 60, so that heat generated inside the housing 60 can be efficiently dissipated.

[0036] However, the conductive member 70 originally serves to shield electromagnetic noise inside and outside the housing 60 through its shielding effect. Providing holes in the conductive member 70 may weaken the shielding effect. However, because the size of the holes through which electromagnetic noise can pass is predictable, appropriately designing the holes in consideration of the noise shielding effect can prevent noise from passing through the holes and suppress deterioration of shielding performance. Furthermore, the holes (first hole 73a to fourth hole 73d) in the conductive member 70 reduce capacitive coupling between electromagnetic noise generated from the circuit board 40 and the conductive member 70 via the resin member 90. Therefore, electromagnetic noise capacitively coupled from the circuit board 40 to the conductive member 70 can be suppressed from being transmitted to the connector 80. The first hole 73a, second hole 73b, third hole 73c, and fourth hole 73d may have the same shape and size. The shapes of the first hole 73a, the second hole 73b, the third hole 73c, and the fourth hole 73d may be, for example, a triangle, a rectangle, a polygon with pentagons or more sides, or a circle. The circle may include an ellipse.

[0037] The first hole 73a has a first hole shape, the second hole 73b has a second hole shape, the third hole 73c has a third hole shape, and the fourth hole 73d has a fourth hole shape. The holes of the conductive member 70 can be freely designed. The shapes of the first to fourth holes may be, for example, triangular, rectangular, pentagonal or higher polygonal, or circular. The circular shape may include an ellipse.

[0038] In particular, in this embodiment, the first hole shape of the first hole 73a, the second hole shape of the second hole 73b, the third hole shape of the third hole 73c, and the fourth hole shape of the fourth hole 73d are circular, which makes it easy to form the holes in the conductive member 70.

[0039] Furthermore, in the embodiment, the plurality of first holes 73a penetrate the first planar portion 72a of the conductive member 70, the plurality of second holes 73b penetrate the second planar portion 72b of the conductive member 70, the plurality of third holes 73c penetrate the third planar portion 72c of the conductive member 70, and the plurality of fourth holes 73d penetrate the fourth planar portion 72d of the conductive member 70. As a result, the resin member 90 penetrates the plurality of holes in each planar portion of the conductive member 70, and therefore the heat dissipation effect of the resin member 90 is improved.

[0040] As in the embodiment, three or more evenly spaced first holes 73a may penetrate the first planar portion 72a, three or more evenly spaced second holes 73b may penetrate the second planar portion 72b, three or more evenly spaced third holes 73c may penetrate the third planar portion 72c, and three or more evenly spaced fourth holes 73d may penetrate the fourth planar portion 72d.

[0041] Furthermore, the conductive member 70 further has at least one fifth hole 73e penetrating the bottom surface portion 71. This allows a member such as a connector to be connected to the circuit board 40 through the fifth hole 73e.

[0042] Regarding the design of the holes described above, the maximum inner diameters of the first hole 73a, the second hole 73b, the third hole 73c, and the fourth hole 73d can be set to be smaller than half the wavelength of the upper limit frequency of the EMC (Electromagnetic Compatibility) standard, for example. This effectively prevents electromagnetic noise from passing through the holes and suppresses a decrease in EMC, which is a performance index of the shielding effect.

[0043] The resin member 90 may further be in contact with at least a part of the second surface 40b of the circuit board 40, at least a part of the first planar portion 72a of the conductive member 70, at least a part of the second planar portion 72b of the conductive member 70, at least a part of the third planar portion 72c of the conductive member 70, at least a part of the fourth planar portion 72d of the conductive member 70, and at least a part of the bottom surface portion 71 of the conductive member 70. In this way, the resin member 90 is in contact with the circuit board 40 and the conductive member 70, and therefore heat generated in the circuit board 40 can be efficiently dissipated.

[0044] Returning to the circuit board 40, the circuit board 40 has a second shape including at least a fifth side 41, a sixth side 42, a seventh side 43, and an eighth side 44 in a plan view of the circuit board 40. The circuit board 40 has at least a first end face 40c1 corresponding to the fifth side 41, a second end face 40c2 corresponding to the sixth side 42, a third end face 40c3 corresponding to the seventh side 43, and a fourth end face 40c4 corresponding to the eighth side 44.

[0045] At least a portion of the first planar portion 72a of the conductive member 70 faces the first end face 40c1 of the circuit board 40, at least a portion of the second planar portion 72b faces the second end face 40c2 of the circuit board 40, at least a portion of the third planar portion 72c faces the third end face 40c3 of the circuit board 40, and at least a portion of the fourth planar portion 72d faces the fourth end face 40c4 of the circuit board 40. The resin member 90 also contacts at least a portion of the first end face 40c1 of the circuit board 40, at least a portion of the second end face 40c2 of the circuit board 40, at least a portion of the third end face 40c3 of the circuit board 40, and at least a portion of the fourth end face 40c4 of the circuit board 40. As a result, the resin member 90 contacts the end faces of the circuit board 40, allowing heat generated in the circuit board 40 to be efficiently dissipated. Note that even if there is another member such as resin member 90 between each end face of circuit board 40 and each planar portion of conductive member 70, they are considered to be facing each other.

[0046] At least a part of the interface of the resin member 90 may be located between the first surface 40a of the circuit board 40 and the second surface 40b of the circuit board 40 in the first direction. That is, the upper surface of the resin member 90 may be located midway between each end surface of the circuit board 40. This brings the resin member 90 into contact with the end surface of the circuit board 40, allowing heat generated in the circuit board 40 to be efficiently dissipated.

[0047] FIG. 13A is a top perspective view of a conductive member 70 of a first example, and FIG. 13B is a bottom perspective view of the conductive member 70 of the first example. The conductive member 70 of the first example is the conductive member 70 in the above-described embodiment. In this example, a first gap 74a exists between the first planar portion 72a and the second planar portion 72b of the conductive member 70, a second gap 74b exists between the second planar portion 72b and the third planar portion 72c of the conductive member 70, a third gap 74c exists between the third planar portion 72b and the fourth planar portion 72d of the conductive member 70, and a fourth gap 74d exists between the fourth planar portion 72d of the conductive member 70 and the first planar portion 72a. The resin member 90 is disposed in the first gap 74a, the second gap 74b, the third gap 74c, and the fourth gap 74d.

[0048] As a result, the resin member 90 is disposed in each gap of the conductive member 70, so that heat generated inside the housing 60 can be efficiently dissipated.

[0049] The conductive member 70 of this embodiment can be formed, for example, by bending a single metal plate, which allows the conductive member 70 to be formed easily and at low cost.

[0050] As described above, the large-diameter cylindrical portion 61 of the housing 60 is composed of a first wall portion 65a, a second wall portion 65b, a third wall portion 65c, and a fourth wall portion 65d. The first wall portion 65a of the large-diameter cylindrical portion 61 corresponds to the first planar portion 72a of the conductive member 70. The second wall portion 65b is formed continuously with the first wall portion 65a and corresponds to the second planar portion 72b of the conductive member 70. The third wall portion 65c is formed continuously with the second wall portion 65b and corresponds to the third planar portion 72c of the conductive member 70. The fourth wall portion 65d is formed continuously with the third wall portion 65c and the first wall portion 65a and corresponds to the fourth planar portion 72d of the conductive member 70.

[0051] Furthermore, the large-diameter cylindrical portion 61 of the housing 60 has a first housing corner 67a, a second housing corner 67b, a third housing corner 67c, and a fourth housing corner 67d. The first housing corner 67a is formed between the first wall portion 65a and the second wall portion 65b of the large-diameter cylindrical portion 61 and has a first corner inner surface 68a. The second housing corner 67b is formed between the second wall portion 65b and the third wall portion 65c of the large-diameter cylindrical portion 61 and has a second corner inner surface 68b. The third housing corner 67c is formed between the third wall portion 65c and the fourth wall portion 65d of the large-diameter cylindrical portion 61 and has a third corner inner surface 68c. The fourth housing corner 67d is formed between the fourth wall portion 65d of the large-diameter cylindrical portion 61 and the first wall portion 65a and has a fourth corner inner surface 68d.

[0052] Then, the resin member 90 passes through the first gap 74a of the conductive member 70 to further contact the first corner inner surface 68a of the first housing corner portion 67a of the large diameter cylindrical portion 61, passes through the second gap 74b to further contact the second corner inner surface 68b of the second housing corner portion 67b, passes through the third gap 74c to further contact the third corner inner surface 68c of the third housing corner portion 67c, and passes through the fourth gap 74d to further contact the fourth corner inner surface 68d of the fourth housing corner portion 67d.

[0053] With the above-described configuration, the resin member 90 passes through each gap in the conductive member 70 and contacts the inner surfaces of each corner of the housing 60, thereby enabling heat generated inside the housing 60 to be dissipated more efficiently.

[0054] 14A is a top perspective view of conductive member 70 of the second embodiment, and Fig. 14B is a bottom perspective view of conductive member 70 of the second embodiment. Compared to conductive member 70 of the second embodiment, conductive member 70 of the second embodiment has, in addition to fifth hole 73e in bottom surface portion 71, a plurality of seventh holes 73f formed around fifth hole 73e.

[0055] The second housing end 64 of the housing 60 has a housing end surface 69 that faces at least a part of the second surface 40b of the circuit board 40. The resin member 90 also protrudes from the seventh hole 73f and contacts the housing end surface 69. This allows heat generated inside the housing 60 to be dissipated more efficiently.

[0056] FIG. 15A is a top perspective view of a conductive member 70 of the third embodiment, and FIG. 15B is a bottom perspective view of the conductive member 70 of the third embodiment. In this embodiment, the first gap 74a, second gap 74b, third gap 74c, and fourth gap 74d present in the first and second embodiments do not exist. At least the first planar portion 72a, second planar portion 72b, third planar portion 72c, fourth planar portion 72d, and bottom portion 71 of the conductive member 70 are connected to each other. This allows the conductive member 70 to be easily formed.

[0057] In the conductive member 70 of this embodiment, for example, at least the first planar portion 72a, the second planar portion 72b, the third planar portion 72c, the fourth planar portion 72d, and the bottom portion can be formed by drawing a single metal plate, which allows the conductive member 70 to be formed easily and at low cost.

[0058] 16A is a top perspective view of a conductive member 70 of the fourth embodiment, and FIG. 16B is a bottom perspective view of the conductive member 70 of the fourth embodiment. Compared to the conductive member 70 of the third embodiment, the conductive member 70 of the fourth embodiment has a fifth hole 73e in the bottom surface portion 71, and also has a plurality of seventh holes 73f formed around the fifth hole 73e. The resin member 90 also protrudes from the seventh holes 73f and contacts the housing end surface 69. This allows heat generated inside the housing 60 to be dissipated more efficiently.

[0059] With respect to the housing 60, a sixth hole 69a penetrating the second housing end 64 of the housing 60 in the first direction is formed in the second housing end 64 of the housing 60. The second housing end 64 of the housing 60 has a housing end surface 69 facing at least a part of the second surface 40b of the circuit board 40. A bottom surface portion 71 of the conductive member 70 is disposed corresponding to the housing end surface 69 of the second housing end 64 of the housing 60. As shown in FIGS. 10 and 12 , a connector 80 is disposed across the inside and outside of the housing 60, passing through the sixth hole 69a of the second housing end 64 of the housing 60 and the fifth hole 73e of the bottom surface portion 71 of the conductive member 70.

[0060] The connector 80 has a first connector end 81 arranged inside the housing 60 and a second connector end 82 located opposite the first connector end 81 and arranged outside the housing 60. The first connector end 81 is electrically connected to the second surface 40b of the circuit board 40, and the second connector end 82 is electrically connected to a wire of the vehicle V when the vehicle-mounted camera 100 is installed in the vehicle V. This ensures the supply of power from the vehicle V and the exchange of signals with the vehicle V.

[0061] The connector 80 may be a coaxial connector having a signal terminal 83 and a ground terminal 84. This ensures power supply from the vehicle V and exchange of high-frequency signals with the vehicle V.

[0062] The lens unit 30 is supported by the first housing end 63 of the housing 60. This allows the lens unit 30 to be supported by the housing 60. In the embodiment, the ring member 20 is welded over the entire circumference to the flange portion 32 of the lens unit 30 on the radially inner side and to the first housing end 63 of the housing 60 on the radially outer side. This welding is performed by, for example, laser welding.

[0063] In the embodiment, the first shape of the bottom surface portion 71 of the conductive member 70 is a first rectangular shape, and the second shape of the circuit board 40 is a second rectangular shape. This allows the vehicle-mounted camera 100 to be easily manufactured using members of common shapes.

[0064] The resin member 90 may contain a magnetic material such as ferrite, etc. This allows the resin member 90 to also have a shielding effect.

[0065] At least one of the housing 60 and the lens unit 30 can be molded from resin, which allows the housing 60 or the lens unit 30 to be formed easily and at low cost.

[0066] 17 is a simulation diagram illustrating the heat distribution when current is applied to a conventional vehicle-mounted camera and an in-vehicle camera according to the embodiment. In the conventional vehicle-mounted camera, the conductive member does not have the first through fourth holes 73a through 73d. In the in-vehicle camera according to the embodiment, the conductive member does have the first through fourth holes 73a through 73d. This simulation diagram shows that the in-vehicle camera according to the embodiment has a wider low-temperature region than the in-vehicle camera according to the conventional example, and that the heat dissipation effect of the resin member 90 according to the embodiment is more efficient than that of the conventional example.

[0067] 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.

[0068] (1) A lens unit (lens unit 30) including a first cylindrical portion (first cylindrical portion 31) having a first cylindrical shape and at least one lens arranged on an optical axis (optical axis L) inside the first cylindrical portion; 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 conductive member (conductive member 70) arranged to accommodate at least the circuit board and the imaging element; a housing (housing 60) that houses at least the circuit board, the imaging element, and the conductive member; The housing includes: a second cylindrical portion (large diameter cylindrical portion 61) having a second cylindrical shape having at least a first inner surface (first inner surface 66a), a second inner surface (second inner surface 66b), a third inner surface (third inner surface 66c), and a fourth inner surface (fourth inner surface 66d); a first housing end portion (first housing end portion 63) disposed between the first cylindrical portion of the lens unit and the circuit board; a second housing end (second housing end 64) that is located opposite the first housing end in a first direction that is a direction along the optical axis and at least a portion of which faces the second surface of the circuit board; The conductive member is a bottom surface portion (bottom surface portion 71) having a first shape including at least a first side (first side 71a), a second side (second side 71b), a third side (third side 71c), and a fourth side (fourth side 71d) in a plan view of the conductive member, the bottom surface portion (bottom surface portion 71) being at least partially opposed to the second surface of the circuit board and being disposed at the second housing end portion of the housing; a first planar portion (first planar portion 72a) extending from the first side of the bottom surface portion toward a second direction that is a direction away from the second housing end portion of the housing and disposed along the first inner side surface of the second cylindrical portion of the housing; a second planar portion (second planar portion 72b) extending from the second side of the bottom surface portion in the second direction and disposed along the second inner side surface of the second cylindrical portion of the housing; a third planar portion (third planar portion 72c) extending from the third side of the bottom surface portion in the second direction and disposed along the third inner side surface of the second cylindrical portion of the housing; a fourth planar portion (fourth planar portion 72d) extending from the fourth side of the bottom surface portion in the second direction and disposed along the fourth inner side surface of the second cylindrical portion of the housing; At least one first hole (first hole 73a) penetrating the first planar portion; at least one second hole (second hole 73b) penetrating the second planar portion; at least one third hole (third hole 73c) penetrating the third planar portion; At least one fourth hole (fourth hole 73d) penetrating the fourth planar portion, a resin member (90) having a predetermined thermal conductivity and disposed at least between the second surface of the circuit board and the bottom surface of the conductive member; The resin member is the conductive member passes through the first hole in the first planar portion and comes into contact with the first inner surface of the second cylindrical portion of the housing; the second hole in the second planar portion of the conductive member contacts the second inner surface of the second cylindrical portion of the housing; the third hole in the third planar portion of the conductive member contacts the third inner surface of the second cylindrical portion of the housing; the conductive member passes through the fourth hole in the fourth planar portion and comes into contact with the fourth inner surface of the second cylindrical portion of the housing; An in-vehicle camera (in-vehicle camera 100).

[0069] This allows the resin member to come into contact with the inner surface of the housing through the holes in the conductive member, allowing for efficient dissipation of heat generated inside the housing. Also, by appropriately designing the holes in the conductive member in consideration of the noise shielding effect, it is possible to prevent noise from passing through the holes and prevent a decrease in sealing performance.

[0070] In addition, in the conductive member, only one of the first planar portion, the second planar portion, the third planar portion, and the fourth planar portion may have at least one hole, and the other three planar portions may not have any holes. Also, in the conductive member, only two of the first planar portion, the second planar portion, the third planar portion, and the fourth planar portion may have at least one hole, and the other two planar portions may not have any holes. Also, in the conductive member, only three of the first planar portion, the second planar portion, the third planar portion, and the fourth planar portion may have at least one hole, and the other one planar portion may not have any holes.

[0071] (2) The vehicle-mounted camera according to (1), the first hole in the first planar portion of the conductive member has a first hole shape, the second hole in the second planar portion of the conductive member has a second hole shape, the third hole of the third surface portion of the conductive member has a third hole shape, the fourth hole of the fourth surface portion of the conductive member has a fourth hole shape; In-car camera.

[0072] This allows the holes in the conductive member to be freely designed.

[0073] (3) The vehicle-mounted camera according to (2), the first hole shape of the first hole, the second hole shape of the second hole, the third hole shape of the third hole, and the fourth hole shape of the fourth hole are circular. In-car camera.

[0074] This makes it possible to easily form holes in the conductive member.

[0075] (4) The vehicle-mounted camera according to (1), a plurality of the first holes penetrate the first planar portion of the conductive member; a plurality of the second holes penetrate the second planar portion of the conductive member; a plurality of the third holes penetrate the third planar portion of the conductive member; a plurality of the fourth holes penetrating the fourth planar portion of the conductive member; In-car camera.

[0076] As a result, the resin member penetrates through a plurality of holes in each planar portion of the conductive member, improving the heat dissipation effect of the resin member.

[0077] (5) The vehicle-mounted camera according to (1), The conductive member further has at least one fifth hole (fifth hole 73e) penetrating the bottom surface portion. In-car camera.

[0078] This allows a component such as a connector to be connected to the circuit board through the fifth hole.

[0079] (6) The vehicle-mounted camera according to (1), the maximum inner diameters of the first hole, the second hole, the third hole, and the fourth hole are smaller than half the wavelength of the upper limit frequency of the EMC standard; In-car camera.

[0080] This effectively prevents noise from passing through the holes, and prevents a decrease in EMC, which is a performance index of the shielding effect.

[0081] (7) The vehicle-mounted camera according to (1), the resin member further contacts at least a portion of the second surface of the circuit board, at least a portion of the first planar portion of the conductive member, at least a portion of the second planar portion of the conductive member, at least a portion of the third planar portion of the conductive member, at least a portion of the fourth planar portion of the conductive member, and at least a portion of the bottom surface of the conductive member; In-car camera.

[0082] This allows the resin member to come into contact with the circuit board and the conductive member, so that heat generated in the circuit board can be efficiently dissipated.

[0083] (8) The vehicle-mounted camera according to (1), the circuit board has a second shape including at least a fifth side (fifth side 41), a sixth side (sixth side 42), a seventh side (seventh side 43), and an eighth side (eighth side 44) in a plan view of the circuit board; the circuit board has at least a first end face (first end face 40c1) corresponding to the fifth side, a second end face (second end face 40c2) corresponding to the sixth side, a third end face (third end face 40c3) corresponding to the seventh side, and a fourth end face (fourth end face 40c4) corresponding to the eighth side, at least a portion of the first planar portion of the conductive member faces the first end surface of the circuit board; at least a portion of the second planar portion of the conductive member faces the second end surface of the circuit board; at least a portion of the third planar portion of the conductive member faces the third end surface of the circuit board; at least a portion of the fourth planar portion of the conductive member faces the fourth end surface of the circuit board; the resin member further contacts at least a portion of the first end surface of the circuit board, at least a portion of the second end surface of the circuit board, at least a portion of the third end surface of the circuit board, and at least a portion of the fourth end surfaces of the circuit board; In-car camera.

[0084] This allows the resin member to come into contact with the end surface of the circuit board, thereby enabling efficient dissipation of heat generated in the circuit board.

[0085] (9) The vehicle-mounted camera according to (8), At least a part of the interface of the resin member is located between the first surface of the circuit board and the second surface of the circuit board in the first direction. In-car camera.

[0086] This allows the resin member to come into contact with the end surface of the circuit board, thereby enabling efficient dissipation of heat generated in the circuit board.

[0087] (10) The vehicle-mounted camera according to (1), a first gap (first gap 74a) exists between the first planar portion and the second planar portion of the conductive member; a second gap (second gap 74b) exists between the second planar portion and the third planar portion of the conductive member, a third gap (third gap 74c) exists between the third surface portion and the fourth surface portion of the conductive member, a fourth gap (fourth gap 74d) exists between the fourth planar portion and the first planar portion of the conductive member, The resin member is disposed in the first gap, the second gap, the third gap, and the fourth gap. In-car camera.

[0088] As a result, the resin member is disposed in the gap between the conductive members, so that heat generated inside the housing can be efficiently dissipated.

[0089] (11) The vehicle-mounted camera according to (10), The conductive member is formed by bending a single metal plate. In-car camera.

[0090] This allows the conductive member to be formed easily and at low cost.

[0091] (12) The vehicle-mounted camera according to (10), The second cylindrical portion of the housing is configured by a first wall portion (first wall portion 65a), a second wall portion (second wall portion 65b), a third wall portion (third wall portion 65c), and a fourth wall portion (fourth wall portion 65d), the first wall portion of the second cylindrical portion corresponds to the first planar portion of the conductive member, the second wall portion of the second cylindrical portion is formed continuously with the first wall portion and corresponds to the second planar portion of the conductive member; the third wall portion of the second cylindrical portion is formed continuously with the second wall portion and corresponds to the third planar portion of the conductive member; the fourth wall portion of the second cylindrical portion is formed continuously with the third wall portion and the first wall portion and corresponds to the fourth planar portion of the conductive member; The housing includes: a first housing corner portion (first housing corner portion 67a) formed between the first wall portion and the second wall portion of the second cylindrical portion and having a first corner portion inner surface (first corner portion inner surface 68a); a second housing corner portion (second housing corner portion 67b) formed between the second wall portion and the third wall portion of the second cylindrical portion and having a second corner portion inner surface (second corner portion inner surface 68b); a third housing corner portion (third housing corner portion 67c) formed between the third wall portion and the fourth wall portion of the second cylindrical portion and having a third corner portion inner surface (third corner portion inner surface 68c); a fourth housing corner portion (fourth housing corner portion 67d) formed between the fourth wall portion and the first wall portion of the second cylindrical portion, the fourth housing corner portion having a fourth corner inner surface (fourth corner inner surface 68d); The resin member is the second cylindrical portion passes through the first gap and further comes into contact with an inner surface of a first corner of the first housing corner portion, the second cylindrical portion passes through the second gap and further comes into contact with the inner surface of the second corner portion of the second housing corner portion, the second cylindrical portion passes through the third gap and further comes into contact with an inner surface of a third corner portion of the third housing corner portion, The second cylindrical portion passes through the fourth gap and further comes into contact with the inner surface of the fourth corner portion of the fourth housing corner portion. In-car camera.

[0092] This allows the resin member to pass through the gaps in the conductive member and come into contact with the inner surfaces of the corners of the housing, making it possible to more efficiently dissipate heat generated inside the housing.

[0093] (13) The vehicle-mounted camera according to (1), At least the first planar portion, the second planar portion, the third planar portion, the fourth planar portion, and the bottom surface portion of the conductive member are formed to be connected to each other. In-car camera.

[0094] This makes it possible to easily form the conductive member.

[0095] (14) The vehicle-mounted camera according to (13), At least the first planar portion, the second planar portion, the third planar portion, the fourth planar portion, and the bottom surface portion of the conductive member are formed by drawing a single metal plate. In-car camera.

[0096] The conductive member can be formed easily and at low cost.

[0097] (15) The vehicle-mounted camera according to (5), a sixth hole (sixth hole 69a) penetrating the second housing end of the housing in the first direction is formed in the second housing end of the housing; the second housing end of the housing has a housing end surface (housing end surface 69) facing at least a part of the second surface of the circuit board, the bottom surface of the conductive member is disposed to correspond to the housing end surface of the second housing end of the housing, Further provided is a connector (connector 80) arranged across the inside and outside of the housing through the sixth hole at the second housing end of the housing and the fifth hole at the bottom surface of the conductive member, The connector comprises: a first connector end (first connector end 81) disposed inside the housing; a second connector end (second connector end 82) opposite the first connector end and disposed outside the housing; the first connector end is electrically connected to the second side of the circuit board; The second connector end is electrically connected to a wire of the vehicle when the vehicle-mounted camera is installed in the vehicle. In-car camera.

[0098] This ensures power supply from the vehicle and signal exchange with the vehicle.

[0099] (16) The vehicle-mounted camera according to (15), The connector is a coaxial connector having a signal terminal (signal terminal 83) and a ground terminal (ground terminal 84). In-car camera.

[0100] This ensures power supply from the vehicle and exchange of high-frequency signals with the vehicle.

[0101] (17) The vehicle-mounted camera according to (1), The lens unit is supported by the first housing end of the housing. In-car camera.

[0102] This allows the lens unit to be supported by the housing.

[0103] (18) The vehicle-mounted camera according to (1), the first shape of the bottom surface of the conductive member is a first quadrangular shape, The second shape of the circuit board is a second rectangular shape. In-car camera.

[0104] This allows the vehicle-mounted camera to be easily manufactured using components with common shapes.

[0105] (19) The vehicle-mounted camera according to (1), The resin member contains a magnetic material. In-car camera.

[0106] This allows the resin member to also have a shielding effect.

[0107] (20) The vehicle-mounted camera according to (1), The housing or the lens unit is molded from resin. In-car camera.

[0108] This allows the housing or lens unit to be formed easily and at low cost.

[0109] 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]

[0110] The present disclosure is useful as an in-vehicle camera that can efficiently dissipate heat generated inside the housing. [Explanation of symbols]

[0111] 20 Ring member 30 Lens unit 31 First cylindrical portion 32 Flange 32a First flange surface 32b Second flange surface 32c flange end face 40 Circuit Board 40a Page 1 40b 2nd side 40c1 1st end face 40c2 2nd end face 40c3 3rd end face 40c4 4th end face 41 Side 5 42 Side 6 43 Side 7 44 Side 8 50 imaging element 60 cabinets 61 large diameter cylindrical portion (second cylindrical portion) 62 Small diameter cylindrical part 63 First housing end 64 Second housing end 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 First corner of the housing 67b Second housing corner 67c Third corner of the housing 67d Fourth corner of the housing 68a First corner inner surface 68b Second corner inner surface 68c 3rd corner inner surface 68d 4th corner inner surface 69 Housing end face 69a Hole 6 70 Conductive materials 71 Bottom part 71a Side 1 71b Side 2 71c Third side 71d Side 4 72a First surface part 72b Second surface part 72c Third surface part 72d Fourth surface 73a 1st hole 73b 2nd hole 73c 3rd hole 73d Hole 4 73e Hole 5 74a First gap 74b Second gap 74c Third gap 74d 4th gap 80 Connector 81 First connector end 82 Second connector end 83 Signal terminal 84 Ground terminal 90 Resin parts 100 In-car camera

Claims

1. a lens unit including a first cylindrical portion having a first cylindrical shape and at least one lens disposed on an optical axis inside the first cylindrical portion; 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 conductive member arranged to accommodate at least the circuit board and the imaging element; a housing that houses at least the circuit board, the imaging element, and the conductive member, The housing includes: a second cylindrical portion having at least a first inner surface, a second inner surface, a third inner surface, and a fourth inner surface; a first housing end portion disposed between the first cylindrical portion of the lens unit and the circuit board; a second housing end portion that is opposite to the first housing end portion in a first direction that is a direction along the optical axis and at least a portion of which faces the second surface of the circuit board; The conductive member is a bottom surface portion, at least a portion of which faces the second surface of the circuit board and is disposed at the second housing end portion of the housing, and which 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 conductive member; a first planar portion extending from the first side of the bottom surface portion toward a second direction that is a direction away from the second housing end portion of the housing and disposed along the first inner side surface of the second cylindrical portion of the housing; a second planar portion extending from the second side of the bottom surface portion in the second direction and disposed along the second inner side surface of the second cylindrical portion of the housing; a third planar portion extending from the third side of the bottom surface portion in the second direction and disposed along the third inner side surface of the second cylindrical portion of the housing; a fourth planar portion extending from the fourth side of the bottom surface portion in the second direction and disposed along the fourth inner side surface of the second cylindrical portion of the housing; at least one first hole penetrating the first planar portion; at least one second hole penetrating the second planar portion; at least one third hole penetrating the third planar portion; at least one fourth hole penetrating the fourth planar portion; a resin member having a predetermined thermal conductivity and disposed at least between the second surface of the circuit board and the bottom surface of the conductive member; The resin member is the conductive member passes through the first hole in the first planar portion and comes into contact with the first inner surface of the second cylindrical portion of the housing; the conductive member passes through the second hole in the second planar portion and comes into contact with the second inner surface of the second cylindrical portion of the housing; the conductive member passes through the third hole in the third planar portion and comes into contact with the third inner surface of the second cylindrical portion of the housing; the conductive member passes through the fourth hole in the fourth planar portion and comes into contact with the fourth inner surface of the second cylindrical portion of the housing; In-car camera.

2. The vehicle-mounted camera according to claim 1, the first hole in the first planar portion of the conductive member has a first hole shape, the second hole in the second surface portion of the conductive member has a second hole shape, the third hole of the third planar portion of the conductive member has a third hole shape, the fourth hole of the fourth surface portion of the conductive member has a fourth hole shape; In-car camera.

3. The vehicle-mounted camera according to claim 2, the first hole shape of the first hole, the second hole shape of the second hole, the third hole shape of the third hole, and the fourth hole shape of the fourth hole are circular. In-car camera.

4. The vehicle-mounted camera according to claim 1, a plurality of the first holes penetrate the first planar portion of the conductive member; a plurality of the second holes penetrate the second planar portion of the conductive member; a plurality of the third holes penetrate the third planar portion of the conductive member; a plurality of the fourth holes penetrating the fourth planar portion of the conductive member; In-car camera.

5. The vehicle-mounted camera according to claim 1, The conductive member further has at least one fifth hole penetrating the bottom surface portion. In-car camera.

6. The vehicle-mounted camera according to claim 1, the maximum inner diameters of the first hole, the second hole, the third hole, and the fourth hole are smaller than half the wavelength of the upper limit frequency of the EMC standard; In-car camera.

7. The vehicle-mounted camera according to claim 1, the resin member further contacts at least a portion of the second surface of the circuit board, at least a portion of the first planar portion of the conductive member, at least a portion of the second planar portion of the conductive member, at least a portion of the third planar portion of the conductive member, at least a portion of the fourth planar portion of the conductive member, and at least a portion of the bottom surface of the conductive member; In-car camera.

8. The vehicle-mounted camera according to claim 1, the circuit board 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 circuit board; the circuit board has at least a first end surface corresponding to the fifth side, a second end surface corresponding to the sixth side, a third end surface corresponding to the seventh side, and a fourth end surface corresponding to the eighth side; at least a portion of the first planar portion of the conductive member faces the first end surface of the circuit board; at least a portion of the second planar portion of the conductive member faces the second end surface of the circuit board; at least a portion of the third planar portion of the conductive member faces the third end surface of the circuit board; at least a portion of the fourth planar portion of the conductive member faces the fourth end surface of the circuit board; the resin member is in further contact with at least a portion of the first end surface of the circuit board, at least a portion of the second end surface of the circuit board, at least a portion of the third end surface of the circuit board, and at least a portion of the fourth end surface of the circuit board; In-car camera.

9. The vehicle-mounted camera according to claim 8, At least a part of the interface of the resin member is located between the first surface of the circuit board and the second surface of the circuit board in the first direction. In-car camera.

10. The vehicle-mounted camera according to claim 1, a first gap exists between the first planar portion and the second planar portion of the conductive member; a second gap exists between the second planar portion and the third planar portion of the conductive member; a third gap exists between the third planar portion and the fourth planar portion of the conductive member, a fourth gap exists between the fourth planar portion and the first planar portion of the conductive member, The resin member is disposed in the first gap, the second gap, the third gap, and the fourth gap. In-car camera.

11. The vehicle-mounted camera according to claim 10, The conductive member is formed by bending a single metal plate. In-car camera.

12. The vehicle-mounted camera according to claim 10, the second cylindrical portion of the housing is configured by a first wall portion, a second wall portion, a third wall portion, and a fourth wall portion, the first wall portion of the second cylindrical portion corresponds to the first planar portion of the conductive member, the second wall portion of the second cylindrical portion is formed continuously with the first wall portion and corresponds to the second planar portion of the conductive member; the third wall portion of the second cylindrical portion is formed continuously with the second wall portion and corresponds to the third planar portion of the conductive member; the fourth wall portion of the second cylindrical portion is formed continuously with the third wall portion and the first wall portion and corresponds to the fourth planar portion of the conductive member, The housing includes: a first housing corner portion formed between the first wall portion and the second wall portion of the second cylindrical portion and having a first corner inner surface; a second housing corner portion formed between the second wall portion and the third wall portion of the second cylindrical portion and having a second corner inner surface; a third housing corner portion formed between the third wall portion and the fourth wall portion of the second cylindrical portion and having a third corner inner surface; a fourth housing corner portion formed between the fourth wall portion and the first wall portion of the second cylindrical portion and having a fourth corner inner surface, The resin member is the second cylindrical portion passes through the first gap and further comes into contact with an inner surface of a first corner of the first housing corner portion, the second cylindrical portion passes through the second gap and further comes into contact with a second corner inner surface of the second housing corner portion, the second cylindrical portion passes through the third gap and further comes into contact with an inner surface of a third corner portion of the third housing corner portion, The second cylindrical portion passes through the fourth gap and further comes into contact with the inner surface of the fourth corner portion of the fourth housing corner portion. In-car camera.

13. The vehicle-mounted camera according to claim 1, At least the first planar portion, the second planar portion, the third planar portion, the fourth planar portion, and the bottom surface portion of the conductive member are formed to be connected to each other. In-car camera.

14. The vehicle-mounted camera according to claim 13, At least the first planar portion, the second planar portion, the third planar portion, the fourth planar portion, and the bottom surface portion of the conductive member are formed by drawing a single metal plate. In-car camera.

15. The vehicle-mounted camera according to claim 5, a sixth hole penetrating the second housing end of the housing in the first direction is formed in the second housing end of the housing; the second housing end of the housing has a housing end surface facing at least a portion of the second surface of the circuit board, the bottom surface of the conductive member is disposed to correspond to the housing end surface of the second housing end of the housing, a connector disposed across the inside and outside of the housing through the sixth hole at the second housing end of the housing and the fifth hole at the bottom surface of the conductive member; The connector comprises: a first connector end disposed inside the housing; a second connector end opposite the first connector end and disposed outside the housing; the first connector end is electrically connected to the second side of the circuit board; The second connector end is electrically connected to a wire of the vehicle when the vehicle-mounted camera is installed in the vehicle. In-car camera.

16. The vehicle-mounted camera according to claim 15, The connector is a coaxial connector having a signal terminal and a ground terminal. In-car camera.

17. The vehicle-mounted camera according to claim 1, the lens unit is supported by the first housing end of the housing; In-car camera.

18. The vehicle-mounted camera according to claim 8, the first shape of the bottom surface portion of the conductive member is a first quadrangular shape, the second shape of the circuit board is a second rectangular shape; In-car camera.

19. The vehicle-mounted camera according to claim 1, The resin member contains a magnetic material. In-car camera.

20. The vehicle-mounted camera according to claim 1, The housing or the lens unit is molded from resin. In-car camera.

Images