Electronic apparatus and image pickup apparatus
By designing a box-shaped chassis formed by conductive materials, the problems of poor EMC, high cost and insufficient internal space utilization in the prior art are solved, and efficient electrical connection and cost reduction are achieved.
Patent Information
- Application Number
- CN202380064422.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-09-15
- Filing Date
- 2023-07-25
- Publication Date
- 2025-04-15
AI Technical Summary
In the prior art, the lens-side chassis of the image pickup device is composed of three metal sheets, resulting in poor electromagnetic compatibility (EMC), high cost, and insufficient utilization of internal space.
The box-shaped chassis formed of conductive materials is used to achieve electrical connection through the design of the box part without the need for conductive rubber, reducing the number of components, improving EMC performance, and reducing manufacturing costs.
The effective electrical connection between the chassis without using conductive rubber is achieved, improving EMC performance and cost-effectiveness while simplifying quality control.
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Figure CN119836852A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to an image pickup device and an electronic device that can be mounted on a movable body such as a vehicle. Background Art
[0002] An image pickup device that can be mounted on a movable body such as a vehicle is known (Patent Document 1). In the image pickup device 20 of Patent Document 1, a chassis structure covering a lens side substrate 14 is formed of metal sheets 22, 23, and 24. The metal sheets 22, 23, and 24 are integrated by welding, caulking, bonding, etc., and then combined with a cover 16 formed of resin by insert molding. A rear connector side metal plate 38 is assembled while being pressed against the lens side chassis 22, 23, and 24 with a conductive rubber 39 interposed therebetween, and is thus electrically connected to the lens side chassis 22, 23, and 24.
[0003] Citation List
[0004] Patent Literature
[0005] Patent Document 1: Japanese Patent Application Publication No. 2020-177195 Summary of the invention
[0006] Technical issues
[0007] In Patent Document 1, from the viewpoint of EMC (electromagnetic compatibility), the electrical connection based on the conductive rubber 39 between the lens side chassis composed of three components, namely, the metal sheets 22, 23 and 24, and the metal sheet 38t as the rear connector side chassis is disadvantageous compared to the simultaneous connection of the metal sheets. In addition, since the lens side chassis is composed of three components, namely, the metal sheets 22, 23 and 24, they also need to be combined together by welding, caulking, bonding, etc., so there is a concern that the cost will increase. In addition, there is a concern that the internal space for accommodating the components will become smaller. The lens side chassis composed of three components, namely, the metal sheets 22, 23 and 24 is insert-molded relative to the outer cover 16 formed of resin. Therefore, there is a concern that the component cost will increase due to the facilities, man-hours, management, etc. of the insert molding, and quality control will become difficult due to the wear of the resin, etc.
[0008] In view of the above circumstances, the present disclosure aims to electrically connect a plurality of chassis for accommodating substrate units including electronic components in an efficient manner and to maximize an internal space for accommodating the components.
[0009] Solution to the problem
[0010] An electronic device according to an embodiment of the present disclosure includes:
[0011] a substrate unit including an electronic component;
[0012] A first chassis, the first chassis is formed of a conductive material and includes a box body portion, the box body portion includes a first base portion, a first side wall and a second side wall, and accommodates the substrate unit, the first side wall and the second side wall are arranged in the first base portion and are opposite to each other in any one direction orthogonal to the first direction;
[0013] a first housing, the first housing including a bottom surface and a first opening portion opposite to each other in a first direction, accommodating the first chassis so that the first base portion is opposite to the bottom surface in the first direction, and being in a state where the first side wall and the second side wall are electrically connected to each other by pushing at least one of the first side wall or the second side wall in at least any one direction orthogonal to the first direction through the inner surface of the first housing;
[0014] a second chassis formed of a conductive material and including a second base portion opposed to the substrate unit in the first direction; and
[0015] The second housing includes a second opening portion joined to the first opening portion and fixes the first chassis and the second chassis in a state where the first opening portion and the second opening portion are joined to each other in a first direction so that the first chassis and the second chassis are electrically connected.
[0016] By this configuration, the first chassis and the second chassis can be electrically connected (GND bonding) without using conductive rubber. Compared with the case of using conductive rubber, this achieves excellent EMC and low cost due to the small number of components, and is advantageous in terms of quality control because the number of manufacturing processes is small. When the first chassis is accommodated in the first housing, the first housing and the first chassis relatively push and repel each other, so that the four surfaces of the first chassis can be electrically connected to each other.
[0017] The first housing may have a tapered shape that widens from the bottom surface toward the first opening portion, and
[0018] When the first chassis is accommodated in the first housing, the first side wall and the second side wall may widen from the first base portion along the tapered shape.
[0019] Through this configuration, the first chassis is closely attached to most of the inner wall surface of the first shell, so that the internal space of the first shell can be fully utilized, and as a box-type first chassis, the internal space for accommodating components can be maximized. In other words, since the first chassis and the first shell both have a truncated regular quadrangular pyramid shape extending toward the bottom, the space efficiency is higher than that of a right-angle bent box structure. In addition, the first shell can stably hold the first chassis without gaps so that individual differences of each of the first shell and the first chassis can be absorbed. In addition, since the contact points can be ensured without using deburring caulking, spot welding, etc., this helps to simplify the component manufacturing process and reduce component costs.
[0020] The first side wall and the second side wall may be at least partially separated from each other when not received in the first housing.
[0021] The first side wall and the second side wall may be completely separated from each other when not housed in the first shell, or when separated from each other when at least a portion of them may be in contact with each other, an electrical connection may be established by bringing them into contact with each other, or when at least a portion of them are in contact with each other, the electrical connection formed by the contact may continue.
[0022] One of the first side wall or the second side wall may each include one or more protrusion portions which relatively protrude in a direction in which the first side wall and the second side wall are opposite to each other.
[0023] By accommodating the first chassis in the first housing, a box shape is obtained, and a contact point formed by the raised portion is ensured. By providing the raised portion, the raised portion easily and reliably contacts the side wall, compared with a case where surface contact is assumed without providing the raised portion, the possibility of poor contact due to deviation is reduced, and mutual electrical connection is easily and reliably established.
[0024] The other of the first side wall or the second side wall may each include one or more receiving holes engaged with the one or more raised portions.
[0025] By engaging the protruding portion with the receiving hole, the possibility of poor contact is reduced, and mutual electrical connection can be easily and reliably established.
[0026] One of the first side wall or the second side wall may each include two or more convex portions which protrude relatively in a direction in which the first side wall and the second side wall are opposite to each other and are arranged apart from each other in the first direction, and
[0027] The one or the other of the first side wall or the second side wall may each include one or more slit portions disposed between the two or more convex portions in the first direction and extending in a direction including a component of a direction orthogonal to the first direction.
[0028] When the first chassis is accommodated in the first housing, the portions provided with the raised portions are divided by the slit portions, and each portion can be deformed (bent, etc.) independently. The two raised portions can independently follow the contact surface so as to be in contact with it with certainty, thereby ensuring electrical contact. In other words, by accommodating the first chassis in the first housing, a box shape is obtained, and a contact point formed by the raised portion is ensured.
[0029] The first chassis may include a pair of first contact members and a pair of second contact members disposed in the box portion,
[0030] The first housing may house the first chassis so that the pair of first contact members and the pair of second contact members are exposed from the first opening portion,
[0031] The second chassis may include a pair of third contact members and a pair of fourth contact members disposed in the base portion, and
[0032] The second shell can fix the first chassis and the second chassis so that when the first opening part and the second opening part are engaged with each other in the first direction, the pair of first contact members and the pair of third contact members are electrically connected at two or more first contact points, and the pair of second contact members and the pair of fourth contact members are electrically connected at two or more second contact points.
[0033] By this configuration, the first chassis and the second chassis can be electrically connected (GND bonding) without using conductive rubber. Compared with the case of using conductive rubber, this achieves excellent EMC and low cost due to the small number of components, and is advantageous in terms of quality control because the number of manufacturing processes is small.
[0034] The third contact member of the second chassis is bendable in a second direction orthogonal to the first direction, and
[0035] When the first opening portion of the first shell and the second opening portion of the second shell are engaged with each other in the first direction, the second shell can press the third contact member of the second chassis against the first contact member of the first chassis in the second direction, so that the first contact member and the third contact member are electrically connected at the first contact point.
[0036] By pressing the third contact member of the second chassis against the first contact member of the first chassis in the X direction, the first contact member and the third contact member can be reliably electrically connected at the first contact point.
[0037] The third contact member of the second chassis can be opened and closed in the second direction by bending in the second direction,
[0038] The second housing may push the third contact member of the second chassis in the second direction to close the third contact member, and
[0039] The first contact member of the first chassis can be inserted into the third contact member closed by the second housing in the first direction so that the third contact member bends in the second direction to clamp the first contact member in the second direction, thereby electrically connecting the first contact member and the third contact member at the first contact point.
[0040] When the first contact member of the first chassis is inserted, the first contact member contacts the openable / closable third contact member, so the first contact member can be surely inserted into the third contact member. In addition, after insertion, the first contact member is reliably electrically connected (GND connection) to the openable / closable third contact member.
[0041] When the first chassis and the second chassis are fixed by the second shell, the thickness of the to-be-clamped portion of each first contact member, i.e., the portion to be clamped by the third contact member, in the second direction can be greater than the thickness of the non-contact portion of each first contact member, i.e., the portion that does not contact the third contact member, in the second direction.
[0042] The first contact member and the third contact member can be reliably electrically connected at the first contact point by the third contact member bending in the X direction and clamping the to-be-clamped portion of the first contact member having a large thickness.
[0043] The fourth contact member of the second chassis is bendable in the first direction, and
[0044] When the first opening portion of the first shell and the second opening portion of the second shell are engaged with each other in the first direction, the second contact member of the first chassis and the fourth contact member of the second chassis can be pressed relative to each other in the first direction so that the second contact member and the fourth contact member can be electrically connected at the second contact point.
[0045] Thus, the two second contact members of the first chassis and the fourth contact member of the second chassis are electrically connected stably and reliably (GND bonding).
[0046] The second contact members of the first chassis may each protrude from a first fulcrum provided in the box portion in a direction including a component of a third direction orthogonal to the first direction,
[0047] The fourth contact members of the second chassis may each protrude from a second fulcrum provided in the second base portion in a direction including a component of the third direction,
[0048] The length of the fourth contact member of the second chassis in the third direction may be greater than the length of the second contact member of the first chassis in the third direction.
[0049] The second fulcrum of the second chassis may be closer to the inner side of the electronic device in the third direction than the first fulcrum of the first chassis.
[0050] The second contact member of the first chassis may be inclined toward the fourth contact member of the second chassis, and
[0051] At the second contact point, an inclination angle of the second contact member of the first chassis with respect to the third direction may be greater than an inclination angle of the fourth contact member of the second chassis with respect to the third direction.
[0052] Then, the fourth contact member of the second chassis is pushed downward to bend. However, unreasonable stress is not generated in the cantilever leaf spring structure of the fourth contact member, so the second contact member of the first chassis and the fourth contact member of the second chassis are stably and reliably electrically connected (GND connection).
[0053] The fourth contact member of the second chassis may include a space portion penetrating between the second fulcrum and the second contact point in the first direction.
[0054] By the structure in which the space portion is provided inside each fourth contact member, each of the fourth contact members forms a leaf spring structure that can be flexibly bent. Thus, the fourth contact member of the second chassis is easier to bend than the second contact member of the first chassis. On the contrary, the second contact member of the first chassis is stronger than the fourth contact member of the second chassis. Thus, the fourth contact member of the second chassis is pushed downward and thus bent. However, no unreasonable stress is generated in the cantilever leaf spring structure of the fourth contact member, and therefore the second contact member of the first chassis and the fourth contact member of the second chassis are stably and reliably electrically connected (GND connection).
[0055] Two or more second contact members may be electrically connected to one of the fourth contact members at the second contact point.
[0056] With this configuration, the first chassis and the second chassis are GND-connected at a total of more than 6 positions (including more than 2 first contact points and more than 4 second contact points), so it is advantageous from the viewpoint of EMC because the span of the electrically unconnected state becomes shorter. In addition, since the first chassis and the second chassis are GND-connected at a total of more than 6 positions, the gap between the first chassis and the second chassis is minimized, which is advantageous from the viewpoint of EMC. In addition, the first chassis and the second chassis are GND-connected at a total of more than 6 positions. Therefore, heat can be effectively transferred to the second chassis via the first chassis, and the heat of the heat-generating built-in device can be effectively released to the first shell and the second shell as the outer shell of the image pickup device 2 via the first chassis and the second chassis.
[0057] The fourth contact member of the second chassis is bendable in a third direction orthogonal to the first direction, and
[0058] When the first opening portion of the first shell and the second opening portion of the second shell are engaged with each other in the first direction, the second contact member of the first chassis and the fourth contact member of the second base can be pressed relative to each other in the third direction so that the second contact member and the fourth contact member can be electrically connected at the second contact point.
[0059] Thus, the first chassis and the second chassis are electrically connected stably and reliably (GND bonding).
[0060] When viewed along the first direction, the two or more first contact points and the two or more second contact points may be arranged at positions corresponding to four sides of the rectangle.
[0061] With this configuration, since the first chassis and the second chassis can be electrically connected at many points substantially equally in the circumferential direction, it is advantageous from the viewpoint of EMC because the span of the electrically unconnected state becomes shorter.
[0062] The first chassis may be formed of a metal material as the conductive material.
[0063] The second chassis may be formed of a metal material as the conductive material, and
[0064] The electrical connection between the first chassis and the second chassis need not include an electrical connection through a member formed of a conductive material other than the first chassis and the second chassis.
[0065] Compared with the case of using conductive rubber, this achieves excellent EMC and low cost because the number of components is small, and is advantageous in terms of quality control because the number of manufacturing processes is small.
[0066] The electronic assembly may include an imager device, and
[0067] The electronic apparatus may further include a lens block including a lens held in the first housing or the second housing and optically connected to the imager device when the first direction is set as the optical axis direction.
[0068] Compared with the case of using conductive rubber in the image pickup device, this achieves excellent EMC and low cost because the number of components is small, and is advantageous in terms of quality control because the number of manufacturing processes is small.
[0069] An image pickup device according to an embodiment of the present disclosure includes:
[0070] a substrate unit including an electronic assembly including an imager device;
[0071] A first chassis, the first chassis is formed of a conductive material and includes a box body portion, the box body portion includes a first base portion, a first side wall and a second side wall, and accommodates the substrate unit, the first side wall and the second side wall are arranged in the first base portion and are opposite to each other in any one direction orthogonal to the first direction;
[0072] a first housing, the first housing including a bottom surface and a first opening portion opposite to each other in a first direction, accommodating the first chassis so that the first base portion is opposite to the bottom surface in the first direction, and being in a state where the first side wall and the second side wall are electrically connected to each other by pushing at least one of the first side wall or the second side wall in at least any one direction orthogonal to the first direction by an inner surface of the first housing;
[0073] a second chassis, the second chassis being formed of a conductive material and including a second base portion opposite to the substrate unit in the first direction;
[0074] a second housing including a second opening portion engaged to the first opening portion and fixing the first chassis and the second chassis in a state where the first opening portion and the second opening portion are engaged with each other in the first direction so that the first chassis and the second chassis are electrically connected; and
[0075] A lens unit is held in the first housing or the second housing and is optically connected to the imager device when the first direction is set as the optical axis direction. BRIEF DESCRIPTION OF THE DRAWINGS
[0076] Figure 1 is a cross-sectional view illustrating an image pickup device according to an embodiment of the present disclosure.
[0077] Figure 2 is an exploded perspective view illustrating the image pickup device.
[0078] Figure 3 is a perspective view illustrating the front chassis.
[0079] Figure 4 It is a side view of the front chassis seen along the Y direction.
[0080] Figure 5 is a perspective view illustrating a state in which the front chassis is attached to the front housing of the lens block (the dust-proof sheet is not shown).
[0081] Figure 6 is a diagram schematically illustrating a state in which the front chassis is attached to the front housing of the lens block (the dust-proof sheet is not shown).
[0082] Figure 7 It is seen along the Y direction Figure 6 Side view of the front chassis in the state shown in .
[0083] Figure 8 is a perspective view illustrating the rear chassis before being attached to the rear case.
[0084] Fig. 9 is a side view of the rear chassis before being attached to the rear case, as seen in the Y direction.
[0085] Fig.10 is a side view of the rear chassis before being attached to the rear case, as seen in the X direction.
[0086] Fig.11 is a perspective view illustrating a state in which the rear chassis is attached to the rear case.
[0087] Fig.12 is a sectional view illustrating a state in which the rear chassis is attached to the rear housing.
[0088] Fig.13 It is a graphic description Fig.11 A perspective view of the rear chassis in the state shown in FIG.
[0089] Fig.14 It is seen along the Y direction Fig.11 Side view of the rear chassis in the state shown in .
[0090] Fig.15 is seen along the X direction Fig.11 Side view of the rear chassis in the state shown in .
[0091] Fig.16 is a perspective view illustrating a state after the rear chassis attached to the rear case (not shown) is attached to the front chassis attached to the front case (not shown).
[0092] Fig.17 is a perspective view illustrating a state after the rear chassis attached to the rear case (not shown) is attached to the front chassis attached to the front case (not shown).
[0093] Fig.18 1 is a side view illustrating a state before the rear chassis attached to the rear case (not shown) is attached to the front chassis attached to the front case (not shown), the side view being seen in the Y direction.
[0094] Fig.19 is a side view illustrating a state after the rear chassis attached to the rear case (not shown) is attached to the front chassis attached to the front case (not shown), the side view being seen in the Y direction.
[0095] Fig. 20is a diagram illustrating a state before the rear chassis attached to the rear housing (not shown) is attached to the front chassis (the front chassis is attached to the front housing (not shown)). Fig.18 ), which is seen along the X direction.
[0096] Fig.21 is a diagram illustrating a state after the rear chassis attached to the rear housing (not shown) is attached to the front chassis (the front chassis is attached to the front housing (not shown)). Fig.19 ), which is seen along the X direction.
[0097] Fig. 22 is a partial perspective view illustrating a rear chassis according to a modified example.
[0098] Fig.23 is a partial perspective view illustrating a rear chassis according to another modification.
[0099] Fig.24 is a perspective view illustrating a rear chassis and a front chassis according to a modified example.
[0100] Fig.25 is a diagram schematically illustrating a rear chassis and a front chassis attached to a front case.
[0101] Fig.26 is a perspective view illustrating a rear chassis and a front chassis according to another modification.
[0102] Fig. 27 is a partial perspective view illustrating the rear chassis and the front chassis before attachment.
[0103] Fig.28 is a partial perspective view illustrating the rear chassis and the front chassis after attachment.
[0104] Fig.29 1 is a partial side view of the rear chassis and the front chassis after attachment, the side view being viewed along the Y direction.
[0105] Fig.30 It is a block diagram illustrating a configuration example of a vehicle control system.
[0106] Fig.31 is a diagram illustrating an example of a sensing area. DETAILED DESCRIPTION
[0107] Hereinafter, an embodiment of the present disclosure will be described with reference to the accompanying drawings. An electronic device according to the present embodiment is described as an image pickup device mounted on a movable body such as a vehicle.
[0108] 1. Image pickup device
[0109] Figure 1 is a cross-sectional view illustrating an image pickup device according to an embodiment of the present disclosure. Figure 2 is an exploded perspective view illustrating the image pickup device.
[0110] The image pickup device 2 is mounted on a movable body such as a vehicle, for example. The image pickup device 2 includes a rear housing 100 (first housing), a rear chassis 200 (first chassis), a substrate unit 3, a front chassis 800 (second chassis), a dustproof sheet 900, and a lens block 1000. The lens block 1000 includes a front housing 1001 (second housing) and a lens 1002. The substrate unit 3 includes a heat sink block 300, a heat sink 400, a connector substrate 500, a substrate holder 600, and an imager substrate 700, and also includes electronic components mounted on the connector substrate 500 and the imager substrate 700.
[0111] The rear housing 100 (first housing) is a rear housing formed of a resin material such as nylon resin, polyamide, polystyrene, ABS resin, and PMMA resin, and the coaxial connector 101 is press-fitted therein.
[0112] The coaxial connector 101 includes a housing formed of brass die casting or copper alloy and terminals formed of brass or copper alloy.
[0113] The rear chassis 200 (first chassis) is a chassis on the side of the rear case 100. The rear chassis 200 is formed of a conductive material, specifically, a metal sheet formed of a copper-based, stainless steel-based, or aluminum-based metal material or the like.
[0114] The heat sink 300 is formed of a material having high thermal conductivity, such as polycarbonate resin, ABS resin, and PBT resin.
[0115] The heat sink 400 has shape-following properties and elasticity, and is formed of a material having high thermal conductivity, such as a silicone rubber sheet material, a heat-dissipating gel material, a heat-dissipating grease, or the like.
[0116] The substrate holder 600 is formed of a resin material such as polycarbonate resin, ABS resin, and PBT resin, and holds the connector substrate 500 and the imager substrate 700 .
[0117] The imager substrate 700 includes an imager device as an electronic component. The imager device is, for example, a CCD (charge coupled device) image sensor or a CMOS (complementary metal oxide semiconductor) image sensor, and picks up an optical image formed on a light receiving surface to generate an image signal. The imager substrate 700 is an epoxy glass multilayer substrate, (Registered trademark, the same applies hereinafter) multi-layer substrate, etc.
[0118] The front housing 1001 (second housing) of the lens block 1000 is a front housing formed of a resin material such as nylon resin, polyamide, polystyrene, ABS resin, and PMMA resin. The lens 1002 of the lens block 1000 is held in the front housing 1001 and is formed of, for example, glass or plastic.
[0119] The front chassis 800 (second chassis) is a chassis on the side of the front case 1001. The front chassis 800 is formed of a conductive material, specifically, a metal sheet formed of a copper-based, stainless steel-based, or aluminum-based metal material or the like.
[0120] The dust-proof sheet 900 is a molded component formed of silicone rubber or urethane rubber, and prevents dust from entering the lens block 1000 .
[0121] The connector substrate 500 optically connects the coaxial connector 101, the imager device of the imager substrate 700, and the lens 1002 of the lens block 1000. The connector substrate 500 is a glass epoxy multilayer substrate, a Teflon multilayer substrate, or the like.
[0122] In the following description, the optical axis direction will be referred to as the Z direction (first direction), a direction orthogonal to the Z direction will be referred to as the X direction (second direction), and a direction orthogonal to the Z direction and the X direction will be referred to as the Y direction (third direction). In the Z direction, in particular, the direction from the front housing 1001 to the rear housing 100 (that is, from the lens 1002 to the coaxial connector 101) ( Figure 1 In contrast, the direction from the rear housing 100 to the front housing 1001 (i.e., from the coaxial connector 101 to the lens 1002) is referred to as the +Z direction. Figure 1 The direction from the top to the bottom in the image pickup device 2) will be referred to as the -Z direction. When viewed along the Z direction, the image pickup device 2 has a rectangular shape, specifically, a rectangular shape having four sides in the X direction and the Y direction orthogonal to each other. In the following, the rectangular shape does not strictly refer only to a rectangle, but includes a shape that is close to a rectangle as a whole, that is, a planar shape including four sides that can form a right angle in at least one portion thereof. In addition, a rectangle includes a square, and a rectangular shape includes a square shape. Similarly, a rectangular parallelepiped shape does not strictly refer only to a rectangular parallelepiped, but includes a shape that is close to a rectangular parallelepiped as a whole, that is, a three-dimensional shape including six sides that can form a right angle in at least one portion thereof. In addition, a rectangular parallelepiped includes a cube, and a rectangular parallelepiped shape includes a cube shape. Similarly, a truncated regular tetrahedron shape does not strictly refer only to a truncated regular tetrahedron, but includes a shape that is close to a truncated regular tetrahedron as a whole. In the accompanying drawings, shadows may be omitted in sectional views for visibility.
[0123] The front chassis 800 is pushed in and temporarily fixed to the front housing 1001 of the lens block 1000, with the dustproof sheet 900 interposed therebetween. The substrate holder 600 is held in the imager substrate 700 via the left and right claws 601, 601. The imager substrate 700 and the connector substrate 500 are coupled by connectors respectively mounted thereon. The imager substrate 700 is adhesively fixed to the lens block 1000 at a position where its imager device is optically adjusted relative to the lens 1002 of the lens block 1000. The rear chassis 200 is pushed in and fixed to the rear housing 100. The heat sink 300 is held in the rear chassis 200 inserted into the rear housing 100 by fitting the left and right claws 301, 301 into the hole portions 205, 205 of the rear chassis 200. The coaxial connector 101 is incorporated into the rear housing 100 as a built-in component. The optical system including the lens 1002 is incorporated into the front housing 1001, thereby constituting the lens block 1000. The rear housing opening portion 102 (first opening portion) of the rear housing 100 and the front housing opening portion 1003 (second opening portion) of the front housing 1001 are joined in the Z direction and are welded at their joining surfaces to be fixed to each other.
[0124] 2. Front chassis (second chassis)
[0125] Figure 3 is a perspective view illustrating the front chassis. Figure 4 It is a side view of the front chassis seen along the Y direction.
[0126] The front chassis 800 is formed by bending a sheet of metal. The front chassis 800 includes a front chassis base portion 801 (first base portion). The front chassis base portion 801 has a rectangular shape having a pair of Y sides 811, 811 extending in the Y direction and a pair of X sides 812, 812 extending in the X direction. In the central portion of the front chassis base portion 801, an area 802 for receiving image light from the lens 1002 is provided. Through holes 815, 815 are also provided in the front chassis base portion 801. The positioning protrusions 901, 901 of the dustproof sheet 900 are inserted into the through holes 815, 815 ( Figure 1 and Figure 2 ), through holes 815 and 815 are used to position the front chassis 800 and the dustproof sheet 900.
[0127] A catch-type contact member 813 (third contact member) is provided at the Y side 811 of the front chassis base portion 801. The catch-type contact member 813 can be opened and closed in the X direction by bending in the X direction. Specifically, the catch-type contact member 813 includes a first leaf spring 808 and a second leaf spring 809. The first leaf spring 808 and the second leaf spring 809 do not contact each other, and both can be opened and closed in the X direction by bending in the X direction.
[0128] The first leaf spring 808 protrudes in a cantilevered manner from a fulcrum 816 including the center of the Y side 811 in a direction including components in the X direction and the -Z direction, and is bent into a mountain shape at a first leaf spring contact point 817. The first leaf spring contact point 817, which is the vertex of the mountain shape, protrudes in a direction in which its distance from the front chassis base portion 801 in the X direction increases. With this structure, the first leaf spring 808 can be bent from the fulcrum 816 in the X direction.
[0129] The second leaf spring 809 includes a pair of wall portions 818, 818, which protrude (bend) in the -Z direction from a pair of bent portions 831, 831 on the Y side 811, respectively, and the pair of bent portions 831, 831 are arranged to have a space in the Y direction relative to the first leaf spring 808. U-shaped portions 820 that are bent into a U shape in a direction including components of the X direction and the -Z direction are continuously formed from the end portions 819 of the corresponding wall portions 818 in the -Z direction. The width of each U-shaped portion 820 in the Y direction is smaller than the width of each wall portion 818 in the Y direction. Therefore, the U-shaped portion 820 has a higher elasticity than the wall portion 818. The tip 828 of the first leaf spring 808 in the -Z direction is located in the space between the U-shaped portions 820 of the second leaf spring 809. When viewed in the Y direction ( Figure 4 ), the tip 828 of the first leaf spring 808 in the -Z direction is opposite to the U-shaped portion 820 of the second leaf spring 809, and a space is provided in the X direction and the Z direction. The U-shaped end points 821 of the U-shaped portion 820 are respectively provided with arm portions 822, and the arm portions 822 extend in a direction in which the distance from the front chassis base portion 801 in the X direction and the +Z direction increases. The arm portions 822 are bent into a mountain shape at the second leaf spring contact points 823. The second leaf spring contact points 823, which are all vertices of the mountain shape, face the front chassis base portion 801 in the X direction. When viewed in the Y direction ( Figure 4 ), the second leaf spring contact point 823 is opposite to the first leaf spring contact point 817 of the first leaf spring 808, while being provided with a space in the X direction (i.e., being substantially at the same height in the Z direction). The pair of second leaf spring contact points 823, 823 are separated from each other in the Y direction and do not contact each other. The tips of the pair of arm portions 822, 822 in the +Z direction are continuous via the first longitudinal portion 827 extending in the Y direction. With this structure, the second leaf spring 809 can be bent in the X direction while using the ends 819, 819 of the pair of wall portions 818, 818 in the -Z direction as fulcrums.
[0130] A positioning piece 803 and a leaf spring type contact member 805 (fourth contact member) are provided on each X side 812 of the front chassis base portion 801 .
[0131] The positioning members 803 are each provided in a region including the center of the X side 812 and stand upright in the +Z direction. The positioning members 803 are used for positioning when the front chassis 800 is attached to the front housing 1001 of the lens block 1000 .
[0132] The leaf spring contact member 805 is capable of bending in the Z direction. The leaf spring contact member 805 of the front chassis 800 protrudes from a pair of second fulcrums 806, 806 provided in the front chassis base portion 801 in a direction including components in the Y direction and the -Z direction. The pair of second fulcrums 806, 806 are located on the X side 812, and a space is provided in the X direction relative to the positioning member 803. Specifically, the leaf spring contact member 805 includes a pair of arm portions 807, 807, which protrude (bend) from a pair of second fulcrums 806, 806 in a cantilevered form in a direction including components in the Y direction and the -Z direction. In other words, the arm portion 807 is inclined in the Y direction. The tips 824, 824 of the pair of arm portions 807, 807 in the -Z direction are continuous via a second longitudinal portion 825 parallel to the XY plane and extending in the X direction. The second longitudinal portion 825 and the front chassis base portion 801 are located at positions separated from each other in the Z direction and are parallel to the XY plane. Through this structure, the arm portion 807 constitutes a Z-shaped bending structure bent at the second fulcrum 806 and the tip 824. Although the two ends of the second longitudinal portion 825 in the X direction extend straightly along the X direction, the central portion 826 in the X direction is bent (meandered) toward the X side 812 of the front chassis base portion 801 on the XY plane. Through the X side 812 of the front chassis base portion 801, the second longitudinal portion 825 and a pair of arm portions 807, 807, when viewed on the XY plane, a slit-shaped space portion 810 extending along the X direction is provided on the inner side of the leaf spring contact member 805. Through the X side 812 of the front chassis base part 801, the second longitudinal part 825 and the pair of arm parts 807, 807, when viewed on the XY plane, a slit-shaped space part 810 extending along the X direction is provided on the inner side of the leaf spring type contact member 805. The space part 810 is penetrated in the Z direction. With this structure, the leaf spring type contact member 805 is constituted of a leaf spring structure that can be bent in the Z direction while using a pair of second fulcrums 806, 806 as fulcrums. The space part 810 is used to position the front chassis 800 and the front housing 1001. The second longitudinal part 825 constitutes a second contact point (described later).
[0133] 3. Connection between the front chassis (second chassis) and the front housing (second housing)
[0134] Figure 5 is a perspective view illustrating a state in which the front chassis is attached to the front housing of the lens block (the dust-proof sheet is not shown). Figure 6The diagram schematically illustrates a state in which the front chassis is attached to the front housing of the lens block (the dust sheet is not shown). Figure 7 It is seen along the Y direction Figure 6 Side view of the front chassis in the state shown in .
[0135] The front housing 1001 includes a pair of X side walls 1004, 1004 extending in the X direction and both having a height in the Z direction, and a pair of Y side walls 1006, 1006 extending in the Y direction and both having a height in the Z direction. At least a portion of the front housing 1001 is in a rectangular parallelepiped shape. The front housing opening portion 1003 of the front housing 1001 faces the +Z direction. The front housing 1001 includes a pair of X positioning protrusions 1005, 1005 and a pair of Y positioning protrusions 1007, 1007 in the front housing opening portion 1003.
[0136] When the front housing 1001 is viewed from the front housing opening portion 1003 side in the -Z direction ( Figure 5 ), a pair of X-positioning protrusions 1005, 1005 are respectively arranged away from a pair of X-side walls 1004, 1004. The X-positioning protrusions 1005 each have a longitudinal side in the X direction and protrude in the +Z direction. The X-positioning protrusions 1005 are each inserted into the space portion 810 of the front chassis 800. The X-positioning protrusions 1005 are arranged at a position where the X-positioning protrusions 1005 contact the positioning member 803 when the X-positioning protrusions 1005 are inserted into the space portion 810 of the front chassis 800. Therefore, the front chassis 800 is positioned relative to the front housing 1001.
[0137] When the front housing 1001 is viewed from the front housing opening portion 1003 side in the -Z direction ( Figure 5), a pair of Y positioning protrusions 1007, 1007 are respectively arranged away from a pair of Y side walls 1006, 1006 in the X direction. The Y positioning protrusions 1007 each have a longitudinal side in the Y direction and protrude in the +Z direction. The snap-on contact member 813 (i.e., the first leaf spring 808 and the second leaf spring 809) of the front chassis 800 is pushed into the space 1011 between the Y positioning protrusion 1007 and the Y side wall 1006 in the -Z direction. Specifically, the U-shaped portion 820 of the second leaf spring 809 is pushed into the space 1011 between the Y positioning protrusion 1007 and the Y side wall 1006 in the -Z direction. The inner surface of the wall portion 818 of the second leaf spring 809 of the front chassis 800 contacts the opposite surface of the Y positioning protrusion 1007 that is opposite to the Y side wall 1006. The width of the space 1011 between the Y positioning protrusion 1007 and the Y side wall 1006 in the X direction is slightly larger than the width of the first leaf spring 808 in the X direction, but smaller than the width of the second leaf spring 809 in the X direction. Thus, the arm 822 of the second leaf spring 809 is pushed in the X direction from the inner surface 1010 of the Y side wall 1006 of the front housing 1001 so as to be deformed and thus narrowed, and rebounds in the direction in which the arm 822 opens in the X direction. In this way, the Y positioning protrusion 1007 and the Y side wall 1006 of the front housing 1001 push the snap-on contact member 813 of the front chassis 800 in the X direction, thereby closing the snap-on contact member 813. When the front chassis 800 is attached to the front housing 1001, the front chassis 800 ( Figure 7 ). At this time, the second leaf spring contact point 823 of the second leaf spring 809 and the first leaf spring contact point 817 of the first leaf spring 808 are close to each other in the X direction to form a V-shaped snap-fit structure 830. In the V-shaped snap-fit structure 830, the first leaf spring 808 is not deformed and has its own elasticity. On the other hand, the second leaf spring 809 receives the pushing force pointing to the inside of the X direction from the inner surface 1010 of the Y side wall 1006 of the front housing 1001, and thus has a repulsive force pointing to the X direction of the Y side wall 1006 of the front housing 1001.
[0138] 4. Rear chassis (first chassis)
[0139] Figure 8 is a perspective view illustrating the rear chassis before being attached to the rear case. Fig. 9 is a side view of the rear chassis before being attached to the rear case, as seen in the Y direction. Fig.10 is a side view of the rear chassis before being attached to the rear case, as seen in the X direction.
[0140] The rear chassis 200 is formed by bending a sheet of metal. The rear chassis 200 includes a box portion 206 that accommodates the substrate unit 3 and a pair of clamping contact members 204 (first contact members) and a pair of push-type contact members 203 (second contact members) arranged in the box portion 206. The box portion 206 includes a rear chassis base portion 201 (first base portion) and a pair of Y side walls 207, 207 and a pair of X side walls 208, 208 arranged in the rear chassis base portion 201. The assembly portion 202 composed of 4 deburred shapes is arranged in the center of the rear chassis base portion 201 and is coupled to the connector terminal of the rear housing 100.
[0141] When accommodated in the rear housing 100, the rear chassis base portion 201 is opposite to the bottom surface 103 of the rear housing 100 in the Z direction. The rear chassis base portion 201 has a rectangular shape including a pair of Y sides 209, 209 extending in the Y direction and a pair of X sides 210, 210 extending in the X direction. When the rear chassis base portion 201 is viewed on the XY plane, the four corners of the rectangle are cut, but this depends on the raised portion 105 ( Fig.11 and Fig.12 ).
[0142] The Y side wall 207 is formed by bending the Y edge 209 of the rear chassis base portion 201. The Y side wall 207 does not form a right angle with respect to the rear chassis base portion 201, but widens from the rear chassis base portion 201 in a direction including components of the X direction and the -Z direction ( Fig. 9 ). A to-be-clamped contact member 204 protruding in the -Z direction is provided at the Y end 211 which is the end of the Y side wall 207 in the -Z direction. The to-be-clamped contact member 204 includes a to-be-clamped portion 212 and a non-contact portion 213. The to-be-clamped portion 212 is a portion clamped by the snap-on contact member 813 when the rear chassis 200 and the front chassis 800 are fixed by the front housing 1001. The non-contact portion 213 is a portion that is not in contact with the snap-on contact member 813. The thickness of the to-be-clamped portion 212 in the X direction is greater than the thickness of the non-contact portion 213 in the X direction. For example, the to-be-clamped portion 212 is folded 180 degrees in the Z direction so that its thickness in the X direction becomes twice the thickness of the non-contact portion 213.
[0143] The X side wall 208 is formed by bending the X side 210 of the rear chassis base portion 201. The X side wall 208 does not form a right angle with respect to the rear chassis base portion 201, but widens from the rear chassis base portion in a direction including components of the Y direction and the -Z direction ( Fig.10). Two or more (two in this example) push-type contact members 203, 203 are provided at the X end 216 which is the end of the X side wall 208 in the -Z direction. In other words, since two push-type contact members 203, 203 are provided for a pair of X end portions 216, 216, respectively, the rear chassis 200 includes a total of four push-type contact members 203. At the X end portion 216, two push-type contact members 203, 203 are provided at positions spaced apart from each other in the X direction. The push-type contact members 203 all protrude from the first fulcrum 215 provided at the X end portion 216 of the X side wall 208 in a direction including components in the Y direction and the -Z direction. In other words, the push-type contact member 203 is inclined in the Y direction. The inclination angle of the push-type contact member 203 of the rear chassis 200 relative to the Y direction and the -Z direction is greater than the inclination angle of the arm 807 of the leaf spring type contact member 805 of the front chassis 800 relative to the Y direction or the -Z direction ( Fig. 20 ).
[0144] The Y side wall 207 widens from the rear chassis base portion 201 in the X direction ( Fig. 9 ), the X side wall 208 widens from the rear chassis base portion 201 along the Y direction ( Fig.10 ). In other words, when not accommodated in the rear housing 100, at least a portion of the box portion 206 of the rear chassis 200 has a truncated regular quadrangular pyramid shape that expands toward the bottom in the -Z direction, rather than a rectangular parallelepiped shape.
[0145] A pair of X-ends 216, 216 of the X-side wall 208 in the X-direction are bent in the Y-direction. Thus, the X-end 216 of the X-side wall 208 in the X-direction is opposite to the Y-side wall 207 in the X-direction. The X-side wall 208 is located on the inner side, and the Y-side wall 207 is located on the outer side. When not accommodated in the rear housing 100, the Y-side wall 207 and the X-side wall 208 are at least partially separated from each other in the X-direction and / or the Y-direction. In this example, by widening the Y-side wall 207 in the X-direction, the Y-side wall 207 and a pair of X-ends 216, 216 of each X-side wall 208 are opposite to each other, and are separated from each other in the X-direction ( Fig. 9 ).
[0146] One of the Y side wall 207 or the X side wall 208 includes one or more pin protrusions 217 (protrusions) that are opposite to each other in the X direction in which the Y side wall 207 and the X side wall 208 are opposite to each other while protruding. In this example, the inner X side wall 208 includes two pin protrusions 217, 217 that protrude toward the outer Y side wall 207 in the X direction. The two pin protrusions 217, 217 are arranged at the X end 216 of the X side wall 208 while being separated from each other at least in the Z direction. One or the other of the Y side wall 207 or the X side wall 208 includes one or more slit portions 218 that are arranged between the two or more pin protrusions 217, 217 in the Z direction and extend in a direction including a component of a direction orthogonal to the Z direction. In this example, the X side wall 208 includes a slit portion 218 that is arranged between the two pin protrusions 217, 217 and extends in the Y direction. Therefore, the portions 219, 219 of the X end portion 216 of the X side wall 208, where the two pin protrusions 217, 217 are respectively provided, are divided by the slit portion 218 to become cantilevers, so that the portions 219, 419 can be deformed (bent, etc.) independently.
[0147] When not housed in the rear housing 100, the Y side wall 207 and the X side wall 208 may be completely separated from each other ( Fig. 9 ), or at least a portion thereof may contact each other (not shown). When at least a portion thereof contacts each other, at least one pin protrusion 217 may contact the Y side wall 207, or a portion of the X end portion 216 of the X side wall 208 where the pin protrusion 217 is not provided may contact the Y end wall 207, or both of them may contact each other.
[0148] 5. Connection between the rear chassis (first chassis) and the rear housing (first housing)
[0149] Fig.11 is a perspective view illustrating a state in which the rear chassis is attached to the rear case. Fig.12 is a sectional view illustrating a state in which the rear chassis is attached to the rear housing. Fig.13 It is a graphic description Fig.11 A perspective view of the rear chassis in the state shown in FIG. Fig.14 It is seen along the Y direction Fig.11 Side view of the rear chassis in the state shown in . Fig.15 is seen along the X direction Fig.11 Side view of the rear chassis in the state shown in .
[0150] The rear housing 100 includes a pair of X-side inner wall surfaces 104, 104 extending in the X direction and having a height in the Z direction, and a pair of Y-side inner wall surfaces 106, 106 extending in the Y direction and having a height in the Z direction. The rear housing opening portion 102 of the rear housing 100 faces the -Z direction. In the rear housing 100, the rear housing opening portion 102 is larger than the bottom surface 103, and the rear housing 100 has a tapered shape that widens from the bottom surface 103 toward the rear housing opening portion 102 along the -Z direction. Specifically, a pair of X-side inner wall surfaces 104, 104 are inclined in the Y direction. A pair of Y-side inner wall surfaces 106, 106 are inclined in the X direction. In other words, at least a portion of the space formed by a pair of X-side inner wall surfaces 104, 104, a pair of Y-side inner wall surfaces 106, 106 and the bottom surface 103 of the rear housing 100 has a truncated regular quadrangular pyramid shape that expands toward the bottom in the -Z direction, rather than a rectangular parallelepiped shape.
[0151] As described above, when not accommodated in the rear housing 100, at least a portion of the box portion 206 of the rear chassis 200 has a truncated regular quadrangular pyramid shape, rather than a rectangular parallelepiped shape. The inclination of the X-side inner wall surface 104 and the Y-side inner wall surface 106 in the rear housing 100 is smaller than the inclination of the Y-side wall 207 and the X-side wall 208 of the box portion 206 of the rear chassis 200. In other words, in the box portion 206 of the rear chassis 200, the widening of the truncated regular quadrangular pyramid shape extending toward the bottom in the -Z direction is larger than that of the rear housing 100. Thus, the internal space of the rear housing 100 is smaller than the internal space of the box portion 206 of the rear chassis 200. Therefore, when the box portion 206 of the rear chassis 200 is accommodated in the rear housing 100, the X-side inner wall surface 104 of the rear housing 100 pushes the X-side wall 208 of the rear chassis 200 in the Y direction. On the contrary, the X side wall 208 of the rear chassis 200 resists to widen in the Y direction toward the X side inner wall surface 104 of the rear housing 100. In addition, the Y side inner wall surface 106 of the rear housing 100 pushes the Y side wall 207 of the rear chassis 200 and the X end 216 of the X side wall 208 in the X direction. On the contrary, the Y side wall 207 of the rear housing 200 resists to widen in the X direction toward the Y side inner wall surface 106 of the rear housing 100, and the X end 216 of the X side wall 208 resists to widen in the X direction toward the Y side wall 207 of the rear chassis 200. Therefore, the four surfaces of the rear chassis 200 are electrically connected to each other, and the box portion 206 of the rear chassis 200 is in close contact with most of the X side inner wall surface 104 and the Y side inner wall surface 106 of the rear housing 100. Thus, the internal space of the rear housing 100 can be fully utilized, and the internal space of the box-type rear chassis 200 for accommodating components can be maximized. In other words, since the box portion 206 of the rear chassis 200 and the rear housing 100 have a truncated regular quadrangular pyramid shape extending toward the bottom on the side of the rear housing opening portion 102, the space efficiency is higher than the space efficiency of the right-angle bent box structure. In addition, the rear housing 100 can stably hold the rear chassis 200 without play so that the individual differences of each of the rear housing 100 and the rear chassis 200 can be absorbed. In addition, since the contact point can be ensured without using deburring caulking, spot welding, etc., this helps to simplify the component manufacturing process and reduce component costs. In addition, by maximizing the internal space, another other substrate (not shown) can be accommodated in the image pickup device 2, on which a processor that performs information processing different from the processing of the connector substrate 500 and the imager substrate 700 is mounted. In other words, the substrate unit 3 can also include a substrate different from the connector substrate 500 and the imager substrate 700.
[0152] When the rear chassis 200 is accommodated in the rear housing 100, the pin protrusion 217 of the X end 216 of the X side wall 208 contacts the Y side wall 207 in the X direction. The portions 219, 219 of the X end 216 of the X side wall 208, which are respectively provided with the two pin protrusions 217, 217, are divided by the slit portion 218 so as to be able to deform (bend, etc.) independently. The two pin protrusions 217, 217 can independently follow the Y side wall 207 of the rear chassis 200 as the contact surface in the X direction so as to ensure that the Y side wall 207 is indeed contacted in the X direction, thereby ensuring electrical contact. In other words, by accommodating the rear chassis 200 in the rear housing 100, the Y side wall 207 and the X side wall 208 are closed to form the shape of the box portion 206, thereby ensuring the contact point constituted by the pin protrusions 217, 217. By providing the pin projections 217, 217 at the X end 216 of the X side wall 208, the pin projections 217, 217 easily and surely contact the Y side wall 207, compared with the case where the surface contact is assumed without providing the pin projections. In addition, the possibility of poor contact due to deviation of the rear chassis 200 and the rear case 100 is reduced, and it is easy to reliably electrically connect the four surfaces of the rear chassis 200 to each other.
[0153] At this time, the Y-side inner wall surface 106 and the X-side inner wall surface 104 of the rear housing 100 push at least one of the Y-side wall 207 and the X-side wall 208 (both in the present embodiment) in at least any one of the directions orthogonal to the Z direction (both in the present embodiment, the X direction and the Y direction). Therefore, a state in which an electrical connection is established between the Y-side wall 207 and the X-side wall 208 is obtained. Note that, as described above, when not housed in the rear housing 100, the Y-side wall 207 and the X-side wall 208 of the box portion 206 of the rear chassis 200 can be completely separated from each other ( Fig. 9 ), or at least a portion thereof may be in contact with each other (not shown). “A state in which electrical connection is established” means that electrical connection is established by bringing them into contact with each other when they are separated from each other, and electrical connection continues by contact when at least a portion thereof is in contact with each other, thereby obtaining a state in which electrical connection is established between Y side wall 207 and X side wall 208.
[0154] 6. Electrical connection between the rear chassis (first chassis) and the front chassis (second chassis)
[0155] Fig.16 is a perspective view illustrating a state after the rear chassis attached to the rear case (not shown) is attached to the front chassis attached to the front case (not shown). Fig.17 is a perspective view illustrating a state after the rear chassis attached to the rear case (not shown) is attached to the front chassis attached to the front case (not shown).
[0156] The front housing opening portion 1003 of the front housing 1001 and the rear housing opening portion 102 of the rear housing 100 are joined in the Z direction. In this joined state, a pair of clamped contact members 204, 204 of the rear chassis 200 and a pair of snap-on contact members 813, 813 of the front chassis 800 are electrically connected at two or more (2 in this example) first contact points E1. In addition, a pair of push-type contact members 203, 203 of the rear chassis 200 and a pair of leaf spring contact members 805, 805 of the front chassis 800 are electrically connected at two or more (4 in this example) second contact points E2. The rear chassis 200 and the front chassis 800 are fixed so as to establish these electrical connections. When viewed in the Z direction, two or more (2 in this example) first contact points E1 and two or more (4 in this example) second contact points E2 are arranged at positions corresponding to the four sides of a rectangle (rectangular shape).
[0157] When the rear housing 100 and the front housing 1001 are joined in the Z direction, the front chassis 800 and the rear chassis 200, both formed of a metal material, are mechanically connected at two or more first contact points E1 and two or more second contact points E2, thereby being electrically connected and GND-joined. The image pickup device 2 does not include an electrical connection through a member formed of a conductive material other than the rear chassis 200 and the front chassis 800. For example, the image pickup device 2 does not include a conductive rubber for electrical connection between the rear chassis 200 and the front chassis 800. Compared with the case of using conductive rubber, this achieves excellent EMC and low cost due to the small number of components, and is advantageous in terms of quality control because the number of manufacturing processes is small.
[0158] Assuming that conductive rubber is used for the electrical connection between the rear chassis 200 and the front chassis 800, the rear chassis 200 and the front chassis 800 may be able to be electrically connected in the circumferential direction relative to the Z axis. This is advantageous when compared with a structure that does not use conductive rubber. However, in the present embodiment, when viewed along the Z direction, two or more (2 in this example) first contact points E1 and two or more (4 in this example) second contact points E2 are arranged at positions corresponding to the four sides of a rectangle (rectangular shape). Thus, although conductive rubber is not used, the rear chassis 200 and the front chassis 800 can be electrically connected at 6 points approximately equally in the circumferential direction relative to the Z axis, which is advantageous from the viewpoint of EMC because the span of the electrically unconnected state becomes shorter.
[0159] Fig.18 1 is a side view illustrating a state before the rear chassis attached to the rear case (not shown) is attached to the front chassis attached to the front case (not shown), the side view being seen in the Y direction. Fig.19is a side view illustrating a state after the rear chassis attached to the rear case (not shown) is attached to the front chassis attached to the front case (not shown), the side view being seen in the Y direction.
[0160] First, the electrical connection between the pair of clamped contact members 204, 204 of the rear chassis 200 and the pair of snap-fit contact members 813, 813 of the front chassis 800 at the two first contact points E1 will be described. As described above, when the front chassis 800 is attached to the front housing 1001, the front chassis 800 ( Figure 7 ). At this time, the second leaf spring contact point 823 of the second leaf spring 809 and the first leaf spring contact point 817 of the first leaf spring 808 are close to each other in the X direction to form a V-shaped snap-fit structure 830. In the V-shaped snap-fit structure 830, the first leaf spring 808 is not deformed and has its own elasticity. On the other hand, the second leaf spring 809 receives a pushing force pointing to the inside of the X direction from the inner surface 1010 of the Y side wall 1006 of the front housing 1001, and therefore has a repulsive force in the X direction pointing to the Y side wall 1006 of the front housing 1001. The to-be-clamped contact member 204 of the rear chassis 200 is pushed in and inserted in the -Z direction into the snap-fit contact member 813 that forms the V-shaped snap-fit structure 830 when closed by the front housing 1001 ( Fig.18 ). Therefore, the snap-on contact member 813 is bent in the X direction so as to clamp the to-be-clamped portion 212 having a large thickness of the to-be-clamped contact member 204 in the X direction. Therefore, the to-be-clamped contact member 204 and the snap-on contact member 813 are reliably electrically connected at the first contact point E1. The rear housing opening portion 102 of the rear housing 100 and the front housing opening portion 1003 of the front housing 1001 are engaged in the Z direction. In this state, the Y positioning protrusion 1007 and the Y side wall 1006 of the front housing 1001 press the snap-on contact member 813 of the front chassis 800 against the to-be-clamped contact member 204 of the rear chassis 200 in the X direction. Therefore, the Y positioning protrusion 1007 and the Y side wall 1006 reliably electrically connect the to-be-clamped contact member 204 and the snap-on contact member 813 at the first contact point E1.
[0161] When inserting the to-be-clamped contact member 204 of the rear chassis 200, the position of the to-be-clamped contact member 204 of the rear chassis 200 in the X direction and / or the Y direction may vary due to individual differences or operators. However, when inserting the to-be-clamped contact member 204 of the rear chassis 200, the to-be-clamped portion 212 having a large thickness contacts at least one of the second leaf spring 809 or the first leaf spring 808 constituting the V-shaped snap-fit structure 830. Thus, the to-be-clamped contact member 204 can be surely inserted into the V-shaped snap-fit structure 830. In addition, after the insertion, the to-be-clamped portion 212 having a large thickness of the to-be-clamped contact member 204 is reliably electrically connected (GND bonded) to at least one of the second leaf spring 809 or the first leaf spring 808.
[0162] Fig. 20 is a diagram illustrating a state before the rear chassis attached to the rear housing (not shown) is attached to the front chassis (the front chassis is attached to the front housing (not shown)). Fig.18 ), which is seen along the X direction. Fig.21 is a diagram illustrating a state after the rear chassis attached to the rear housing (not shown) is attached to the front chassis (the front chassis is attached to the front housing (not shown)). Fig.19 ), which is seen along the X direction.
[0163] Next, the electrical connection at the four second contact points E2 between the pair of push-type contact members 203, 203 of the rear chassis 200 and the pair of leaf spring contact members 805, 805 of the front chassis 800 will be described. The relationship between the leaf spring contact member 805 of the front chassis 800 and the push-type contact member 203 of the rear chassis 200 is as follows. The length of the leaf spring contact member 805 of the front chassis 800 from the second fulcrum 806 in the Y direction is greater than the length of the push-type contact member 203 of the rear chassis 200 from the first fulcrum 215 in the Y direction. Thus, the leaf spring contact member 805 of the front chassis 800 is more easily bent in the -Z direction than the push-type contact member 203 of the rear chassis 200. By the structure in which the space portion 810 is provided on the inner side of the leaf spring type contact member 805, the second leaf spring 809 also has a leaf spring structure capable of flexibly bending in the Z direction using a pair of second fulcrums 806, 806 as fulcrums. In contrast, the push-type contact member 203 of the rear chassis 200 is stronger than the leaf spring type contact member 805 of the front chassis 800. The second fulcrum 806 of the front chassis 800 is located further on the inner side of the image pickup device 2 in the Y direction than the first fulcrum 215 of the rear chassis 200. The push-type contact member 203 of the rear chassis 200 is inclined toward the leaf spring type contact member 805 of the front chassis 800. At the second contact point E2, the inclination angle of the push-type contact member 203 of the rear chassis 200 relative to the Y direction and the -Z direction is greater than the inclination angle of the leaf spring type contact member 805 of the front chassis 800 relative to the Y direction and the -Z direction.
[0164] The rear housing opening portion 102 of the rear housing 100 and the front housing opening portion 1003 of the front housing 1001 are engaged in the Z direction. At this time, the two push-type contact members 203, 203 of the rear chassis 200 push the leaf spring contact member 805 ( Fig. 20). Therefore, the rear housing opening portion 102 of the rear housing 100 and the front housing opening portion 1003 of the front housing 1001 are engaged in the Z direction. At this time, the two push-type contact members 203, 203 of the rear chassis 200 and the leaf spring contact member 805 of the front chassis 800 push each other relatively in the Z direction. Therefore, the two push-type contact members 203, 203 and the leaf spring contact member 805 are reliably electrically connected at two second contact points E2. Specifically, the curved tip portion of the push-type contact member 203 of the rear chassis 200 is tilted in the -Z direction. Then, when contacting the leaf spring contact member 805 of the front chassis 800, the two push-type contact members 203, 203 push the first longitudinal portion 827 of the leaf spring contact member 805 at the position farthest from the second fulcrum 806 of the leaf spring contact member 805. Thus, the leaf spring contact member 805 of the front chassis 800 is pushed downward to bend in the -Z direction. However, unreasonable stress is not generated in the cantilever leaf spring structure of the leaf spring contact member 805. In this state, the two push-type contact members 203, 203 of the rear chassis 200 and the leaf spring contact member 805 of the front chassis 800 are stably and reliably electrically connected (GND connection).
[0165] Therefore, the connector substrate 500 and the imager substrate 700 are surrounded by a box shape formed by the chassis including the rear chassis 200 and the front chassis 800, thereby being electrically shielded ( Fig.16 ). In addition, the rear chassis 200 and the front chassis 800 are connected by GND at a total of 6 positions, that is, 2 first contact points E1 and 4 second contact points E2. Specifically, when viewed along the Z direction, the 2 first contact points E1 and the 4 second contact points E2 are arranged at positions corresponding to all four sides of the rectangle (rectangular shape). Therefore, it is advantageous from the point of view of EMC because the span of the electrically unconnected state becomes shorter. In addition, the rear chassis 200 and the front chassis 800 are connected by GND at a total of 6 positions. Therefore, the gap between the rear chassis 200 and the front chassis 800 is minimized, which is advantageous from the point of view of EMC. In addition, the rear chassis 200 and the front chassis 800 are connected by GND at a total of 6 positions. Therefore, heat can be effectively transferred to the front chassis 800 via the rear chassis 200. The heat of the built-in devices that generate heat can be effectively released to the rear case 100 and the front case 1001 as the outer casing of the image pickup device 2 via the rear chassis 200 and the front chassis 800 .
[0166] The connection position between the rear chassis 200 and the front chassis 800 will be described. The engagement force at the first contact point E1 (the force of the snap-on contact member 813 clamping the to-be-clamped contact member 204 in the X direction) is greater than the engagement force at the second contact point E2 (the force of the push-type contact member 203 bending and rebounding the leaf spring contact member 805 in the -Z direction). Therefore, since the rear chassis 200 is held at the insertion position after being inserted into the front chassis 800, welding between the rear housing 100 and the front housing 1001 can be performed in a stable state.
[0167] 7. Modifications
[0168] (1) Modification Example Related to the Pin Boss 217 of the Rear Chassis 200
[0169] Fig. 22 is a partial perspective view illustrating a rear chassis according to a modified example.
[0170] Instead of the X side wall 208 of the rear chassis 200 including the pin protrusion portion 217, the Y side wall 207 may include the pin protrusion portion 217. In this case, the slit portion 218 may be provided in the X side wall 208 where the pin protrusion portions 217, 217 are not provided ( Fig. 22 ). Alternatively, the slit portion 218 may be provided in the Y side wall 207 provided with the pin protrusion portions 217, 217. Alternatively, the slit portion 218 may be provided in both the Y side wall 207 and the X side wall 208. Alternatively, the slit portion 218 need not be provided in either the Y side wall 207 or the X side wall 208.
[0171] Fig.23 is a partial perspective view illustrating a rear chassis according to another modification.
[0172] The Y side wall 207 of the rear chassis 200 may include receiving holes 220, 220 that are respectively engaged with the pin protrusions 217, 217 of the X side wall 208. The pin protrusions 217, 217 are respectively engaged with the receiving holes 220, 220. Therefore, the possibility of poor contact due to the deviation of the rear chassis 200 and the rear housing 100 is reduced, and it is easy to reliably connect the four surfaces of the rear chassis 200 to each other electrically. The receiving holes 220, 220 may be through holes or holes with a bottom. The slit portion 218 may be provided in the Y side wall 207 including the receiving holes 220, 220 and / or the X side wall 208 including the pin protrusions 217, 217.
[0173] Although not shown, the following modifications are possible: Slit portion 218 may be provided in Y side wall 207 where pin protrusion portions 217, 217 are not provided, rather than in X side wall 208 where pin protrusion portions 217, 217 are provided. Alternatively, slit portion 218 may be provided in both Y side wall 207 and X side wall 208.
[0174] The X-side wall 208 of the rear chassis 200 does not need to include the slit portion 218. In other words, the two pin boss portions 217, 217 do not need to be divided by the slit portion 218.
[0175] The X-side wall 208 of the rear chassis 200 may include a pin boss portion 217 .
[0176] The X-side wall 208 of the rear chassis 200 may include three or more pin protrusion portions 217. In this case, the slit portion 218 may be provided between at least some of the pin protrusion portions 217, 217 adjacent to each other. The slit portion 218 may be provided between all adjacent pin protrusion portions 217, 217. Alternatively, the X-side wall 208 does not need to include the slit portion 218.
[0177] Neither the Y side wall 207 nor the X side wall 208 of the rear chassis 200 need include the pin boss portion 217. In this case, the X end portions 216 of the Y side wall 207 and the X side wall 208 are in surface contact with each other. In this case, the slit portion 218 may be provided in the Y side wall 207 and / or the X side wall 208.
[0178] As described above, when not housed in the rear housing 100, the Y side wall 207 and the X side wall 208 of the rear chassis 200 may be completely separated from each other ( Fig. 9 ), or at least a portion of them may contact each other (not shown). When at least a portion of them contact each other, at least one pin protrusion 217 may contact the Y side wall 207. Alternatively, a portion of the X end portion 216 of the X side wall 208 where the pin protrusion 217 is not provided may contact the Y side wall 207, or both are possible.
[0179] (2) Modifications of the Pushing Contact Member 203 of the Rear Chassis 200 and the Leaf Spring Contact Member 805 of the Front Chassis 800
[0180] Fig.24 is a perspective view illustrating a rear chassis and a front chassis according to a modified example. Fig.25 The schematic diagram illustrates the rear chassis and the front chassis attached to the front housing.
[0181] In the above embodiment, the leaf spring contact member 805 of the front chassis 800 can be bent in the Z direction. Instead of this, the leaf spring contact member 805A of the front chassis 800A can be bent in the Y direction. Assume that the rear housing opening portion 102 of the rear housing 100 and the front housing opening portion 1003 of the front housing 1001 are engaged in the Z direction. In this state, it is assumed that the second contact point E2 member 203A of the rear chassis 200A and the leaf spring contact member 805A of the front chassis 800A are relatively pushed each other in the Y direction. Therefore, the push-type contact member 203A and the leaf spring contact member 805A can be electrically connected at the second contact point E2.
[0182] According to a modified example, at the X end 216 which is the end of the X side wall 208 of the rear chassis 200A in the -Z direction, two or more (2 in this example) push-type contact members 203A, 203A are provided which protrude from the first fulcrum 215A in the -Z direction. In other words, the rear chassis 200A includes a total of 4 push-type contact members 203A. The two push-type contact members 203A, 203A are located at positions separated from each other in the X direction on the X end 216. The push-type contact member 203A includes a portion to be clamped 212A and a non-contact portion 213A. The portion to be clamped 212A is a portion that contacts the leaf spring contact member 805A when the rear chassis 200A and the front chassis 800A are fixed by the front housing 1001. The non-contact portion 213A is a portion that does not contact the leaf spring contact member 805A. The thickness of the to-be-clamped portion 212A in the X direction is greater than the thickness of the non-contact portion 213A in the X direction. For example, the to-be-clamped portion 212A is folded 180 degrees in the Z direction so that its thickness in the X direction becomes twice that of the non-contact portion 213A.
[0183] The leaf spring contact member 805A of the front chassis 800A is arranged at each X side 812 of the front chassis base part 801. The leaf spring contact member 805A can be bent in the Y direction. Specifically, the leaf spring contact member 805A protrudes from the X side 812 in a cantilever form along a direction including components of the Y direction and the -Z direction, and is bent into a mountain shape at the leaf spring contact point 817A. The leaf spring contact points 817A, which are all vertices of the mountain shape, protrude in a direction in which their distance from the front chassis base part 801 in the Y direction increases. With this structure, the leaf spring contact member 805A can be bent in the Y direction from the X side 812 as a fulcrum.
[0184] Compared with the first fulcrum 215A of the rear chassis 200A, the X side 812 as the fulcrum of the leaf spring type contact member 805A of the front chassis 800A is located further inside the image pickup device 2 in the Y direction. The inclination angle A of the leaf spring type contact member 805A of the front chassis 800A with respect to the Y direction and the -Z direction is greater than the inclination angle A of the push type contact member 203 of the rear chassis 200A with respect to the Y direction or the -Z direction. With this configuration, the rear case opening portion 102 of the rear case 100 and the front case opening portion 1003 of the front case 1001 are engaged in the Z direction. In this state, the to-be-clamped portion 212A of the second contact point E2 member 203A of the rear chassis 200A presses the leaf spring contact point 817A of the leaf spring type contact member 805A of the front chassis 800A toward the inside of the front chassis 800A in the Y direction. Therefore, the push-type contact member 203A and the leaf spring type contact member 805A are electrically connected at the second contact point E2.
[0185] (3) Another Modification Example Regarding the Pushing Contact Member 203 of the Rear Chassis 200 and the Leaf Spring Contact Member 805 of the Front Chassis 800
[0186] Fig.26 is a perspective view illustrating a rear chassis and a front chassis according to another modification. Fig. 27 is a partial perspective view illustrating the rear chassis and the front chassis before attachment. Fig.28 is a partial perspective view illustrating the rear chassis and the front chassis after attachment. Fig.29 1 is a partial side view of the rear chassis and the front chassis after attachment, the side view being viewed along the Y direction.
[0187] In the above embodiment, the leaf spring contact member 805 of the front chassis 800 is more easily deformed in the -Z direction than the push-type contact member 203 of the rear chassis 200. On the contrary, the push-type contact member 203 of the rear chassis 200 is stronger than the leaf spring contact member 805 of the front chassis 800. Thus, when the push-type contact members 203, 203 of the rear chassis 200 push the first longitudinal portion 827 of the leaf spring contact member 805 in the -Z direction, the leaf spring contact member 805 of the front chassis 800 is pushed downward to bend in the -Z direction. The two push-type contact members 203, 203 of the rear chassis 200 and the leaf spring contact member 805 of the front chassis 800 are electrically connected at the second contact point E2.
[0188] Or, according to another modification, rear chassis 200B includes leaf spring type contact member 203B, and front chassis 800B includes push type contact member 805B.Compared with the push type contact member 805B of front chassis 800B, leaf spring type contact member 203B of rear chassis 200B is easier to bend in +Z direction.On the contrary, the push type contact member 805B of front chassis 800B is stronger than the leaf spring type contact member 203B of rear chassis 200B.So, the rear shell opening part 102 of rear housing 100 and the front shell opening part 1003 of front housing 1001 are engaged in Z direction.In this state, the leaf spring type contact member 203B of rear chassis 200B is pushed upwards by the push type contact member 805B of front chassis 800B, to bend in +Z direction. The leaf spring type contact member 203B of the rear chassis 200B and the push type contact member 805B of the front chassis 800B are electrically connected.
[0189] Specifically, the push-type contact member 805B of the front chassis 800B comprises an arm 807B bent along the -Z direction from the X edge 812B of the front chassis base part 801B. The arm 807B comprises a longitudinal portion 825B parallel to the XY plane and extending along the X direction at the tip 824B in the -Z direction. The longitudinal portion 825B and the front chassis base part 801B are located at a position separated from each other in the Z direction, and are parallel to the XY plane. Through this structure, the push-type contact member 805B has a Z-shaped bending structure bent at the X edge 812B and the tip 824B of the front chassis base part 801B. The longitudinal portion 825B extends in a straight line along the X direction. A protruding portion 826B protruding along the +Z direction is provided at the central portion in the X direction of the longitudinal portion 825B.
[0190] At the X-end 216B, which is the end of the X-side wall 208B of the rear chassis 200B in the -Z direction, two or more (two in this example) leaf spring contact members 203B, 203B are provided. In other words, the rear chassis 200B includes a total of four leaf spring contact members 203B. The two leaf spring contact members 203B, 203B are located at positions separated from each other in the X-direction on the X-end 216B. The leaf spring contact members 203B each include an arm portion 207B bent along the -Z direction from the X-end 216B of the X-side wall 208B. The tip 224B of the arm portion 207B in the -Z direction includes a longitudinal portion 225B parallel to the XY plane and extending along the X direction. The tip portions 226B, 226B of the corresponding longitudinal portions 225B, 225B of the two leaf spring contact members 203B, 203B disposed at the common X end 216B are opposite to each other in the X direction with a space therebetween. The tip portions 226B, 226B are opposite to the protrusion 826B of the push-type contact member 805B of the front chassis 800B in the Z direction.
[0191] The rear housing opening part 102 of the rear housing 100 and the front housing opening part 1003 of the front housing 1001 are engaged in the Z direction. In this state, the two leaf spring contact members 203B, 203B of the rear chassis 200B and the push-type contact member 805B of the front chassis 800B are relatively pushed each other in the Z direction. Therefore, the two leaf spring contact members 203B, 203B and the push-type contact member 805B are electrically connected at two or more second contact points E2. Specifically, the root (part continuous with the arm 207B) of the longitudinal part 225B of the leaf spring contact member 203B of the rear chassis 200B is pressed on the longitudinal part 825B of the push-type contact member 805B of the front chassis 800B in the -Z direction. The tip portion 226B of the longitudinal portion 225B of the leaf spring type contact member 203B of the rear chassis 200B is pushed upward along the +Z direction by the protruding portion 826B of the push type contact member 805B of the front chassis 800B. Therefore, one leaf spring type contact member 203B is electrically connected to the push type contact member 805B at two second contact points E2. Thus, the rear chassis 200B and the front chassis 800B are electrically connected at a total of 8 second contact points E2. Through this structure, the tip portion 226B of the longitudinal portion 225B of the leaf spring type contact member 203B of the rear chassis 200B is pushed upward along the +Z direction by the protruding portion 826B of the push type contact member 805B of the front chassis 800B at the position farthest from its root. So, the longitudinal portion 225B of the leaf spring type contact member 203B of the rear chassis 200B is pushed upward to bend in the +Z direction. However, unreasonable stress is not generated in the cantilever leaf spring structure of the leaf spring contact member 203B. Therefore, the two leaf spring contact members 203B, 203B of the rear chassis 200B and the push-type contact member 805B of the front chassis 800B are stably and reliably electrically connected (GND connection).
[0192] 8. Vehicle composition
[0193] Fig.30 It is a block diagram illustrating a configuration example of a vehicle control system of a vehicle to which the present technology is applied.
[0194] The image pickup device 2 according to the present embodiment can be used as a camera 51 described later.
[0195] The vehicle control system 11 is provided in the vehicle 1 , and performs processing related to driving support and driving automation of the vehicle 1 .
[0196] The vehicle control system 11 includes a vehicle control ECU (electronic control unit) 21, a communication unit 22, a map information accumulation unit 23, a position information acquisition unit 24, an external identification sensor 25, an in-vehicle sensor 26, a vehicle sensor 27, a storage unit 28, a driving support / driving automation control unit 29, a DMS (driver monitoring system) 30, an HMI (human-machine interface) 31 and a vehicle control unit 32.
[0197] The vehicle control ECU 21, the communication unit 22, the map information accumulation unit 23, the position information acquisition unit 24, the external recognition sensor 25, the in-vehicle sensor 26, the vehicle sensor 27, the storage unit 28, the driving support / driving automation control unit 29, the driver monitoring system (DMS) 30, the human-machine interface (HMI) 31, and the vehicle control unit 32 are connected to each other in a communicable manner via a communication network 41. The communication network 41 includes, for example, a system conforming to a protocol such as CAN (Controller Area Network), LIN (Local Interconnect Network), LAN (Local Area Network), or The communication network 41 may be selectively used according to the type of data to be transmitted. For example, CAN may be used for data related to vehicle control, while Ethernet may be used for large-capacity data. It should be noted that the corresponding units of the vehicle control system 11 may be connected not through the communication network 41, but via communication assuming a relatively short distance, such as near field communication (NFC) and Direct wireless communication connection.
[0198] It is to be noted that, hereinafter, when the respective units of the vehicle control system 11 communicate with each other via the communication network 41, the communication network 41 will not be described. For example, when the vehicle control ECU 21 and the communication unit 22 communicate with each other via the communication network 41, it is simply described that the vehicle control ECU 21 and the communication unit 22 communicate with each other.
[0199] The vehicle control ECU 21 is realized by, for example, various processors such as a CPU (Central Processing Unit) and / or an MPU (Micro Processing Unit). The vehicle control ECU 21 controls all or part of the functions of the vehicle control system 11.
[0200] The communication unit 22 communicates with various devices inside and outside the vehicle, other vehicles, servers, base stations, etc. to send and receive various types of data. At this time, the communication unit 22 can use a variety of communication technologies for communication.
[0201] The communication with the outside of the vehicle that the communication unit 22 can perform will be schematically described. The communication unit 22 communicates with a server (hereinafter, referred to as an external server) or the like existing on an external network via a base station or an access point by wireless communication technology, and examples of wireless communication technology include 5G (fifth generation mobile communication system), LTE (Long Term Evolution), DSRC (Dedicated Short Range Communication), etc. The external network with which the communication unit 22 communicates is, for example, the Internet, a cloud network, a company-specific network, etc. There is no particular limitation on the communication technology used by the communication unit 22 to communicate with the external network, as long as the communication technology is a wireless communication technology capable of performing digital two-way communication at a communication speed equal to or greater than a predetermined speed and at a distance equal to or greater than a predetermined distance.
[0202] In addition, for example, the communication unit 22 can communicate with a terminal present near the vehicle using P2P (peer-to-peer) technology. The terminal present near the vehicle includes, for example, an object moving at a relatively low speed, such as a terminal worn by a pedestrian or a bicycle, a terminal installed in a fixed position in a store, etc., or an MTC (machine type communication) terminal. In addition, the communication unit 22 can also perform V2X communication. V2X communication refers to communication between a vehicle and other entities, examples of which include vehicle-to-vehicle communication with other vehicles, vehicle-to-infrastructure communication with roadside equipment, etc., vehicle-to-residence communication with residences, and vehicle-to-pedestrian communication with terminals carried by pedestrians, etc.
[0203] The communication unit 22 can receive a program for updating software for controlling the operation of the vehicle control system 11 from the outside (over-the-air download). The communication unit 22 can receive map information, traffic information, information around the vehicle 1, etc. from the outside. In addition, for example, the communication unit 22 can send information about the vehicle 1, information around the vehicle 1, etc. to the outside. Examples of the information about the vehicle 1 sent to the outside by the communication unit 22 include data indicating the state of the vehicle 1, the recognition result of the recognition unit 73, etc. In addition, for example, the communication unit 22 performs communication to support a vehicle emergency call system such as eCall.
[0204] For example, the communication unit 22 receives the traffic information communication system (VICS) ) which is transmitted using radio wave beacons, optical beacons and / or FM multiplex broadcasting.
[0205] The communication with the interior of the vehicle that the communication unit 22 can perform will be schematically described. The communication unit 22 can, for example, communicate with various devices in the vehicle using wireless communications. For example, the communication unit 22 can wirelessly communicate with the in-vehicle device through a wireless communication technology that enables digital two-way communication at a communication speed equal to or greater than a predetermined speed, examples of which include wireless LAN, Bluetooth, NFC, and WUSB (Wireless USB). The communication unit 22 is not limited to this, and can communicate with the in-vehicle device using wired communication. For example, the communication unit 22 can communicate with various in-vehicle devices through wired communication via a cable connected to a connection terminal (not shown). The communication unit 22 can communicate with various in-vehicle devices through a wired communication technology that enables digital two-way communication at a communication speed equal to or greater than a predetermined speed, examples of which include USB (Universal Serial Bus), HDMI and MHL (Mobile High-Definition Link).
[0206] Here, the in-vehicle device refers to, for example, a device in the vehicle that is not connected to the communication network 41. Examples of the in-vehicle device include a mobile device or wearable device carried by a vehicle occupant such as a driver, an information device brought into and temporarily installed in the vehicle, and the like.
[0207] The map information accumulation unit 23 accumulates one or both of maps acquired from the outside and / or maps created by the vehicle 1. For example, the map information accumulation unit 23 accumulates three-dimensional high-precision maps, global maps with lower precision than high-precision maps but covering a wide area, and the like.
[0208] High-precision maps are, for example, dynamic maps, point cloud maps, vector maps, etc. A dynamic map is, for example, a map including four layers of dynamic information, semi-dynamic information, semi-static information, and static information, and is provided to the vehicle 1 from an external server or the like. A point cloud map is a map including a point cloud (point cloud data). A vector map is, for example, a map in which traffic information such as the location of lanes and / or traffic lights is associated with a point cloud map, and is suitable for ADAS (Advanced Driver Assistance System) and AD (Autonomous Driving).
[0209] The point cloud map and the vector map may be provided, for example, from an external server or the like, or may be created by the vehicle 1 as a map that matches a local map described later based on the sensing results of the camera 51, the radar 52, the LiDAR 53, etc., and may be accumulated in the map information accumulation unit 23. In addition, in the case where a high-precision map is provided from an external server or the like, in order to reduce the amount of communication, for example, map data of several hundred square meters regarding a planned path on which the vehicle 1 will travel is acquired from the external server or the like.
[0210] The position information acquisition unit 24 receives a GNSS (Global Navigation Satellite System) signal from a GNSS satellite and acquires the position information of the vehicle 1. The acquired position information is provided to the driving support / driving automation control unit 29. It is to be noted that the position information acquisition unit 24 is not limited to the technology using the GNSS signal, and for example, the position information may be acquired using a beacon or the like.
[0211] The exterior recognition sensor 25 includes various sensors for recognizing conditions outside the vehicle 1, and provides sensor data from the various sensors to various units of the vehicle control system 11. The exterior recognition sensor 25 may include any type and any number of sensors.
[0212] For example, the external recognition sensor 25 includes a camera 51, a radar 52, a LiDAR (Light Detection and Ranging / Laser Imaging Detection and Ranging) 53, and an ultrasonic sensor 54. The external recognition sensor 25 is not limited to this, and the external recognition sensor 25 may include one or more types of sensors among the camera 51, the radar 52, the LiDAR 53, and the ultrasonic sensor 54. The number of the camera 51, the radar 52, the LiDAR 53, and the ultrasonic sensor 54 is not particularly limited as long as they can be actually installed in the vehicle 1. In addition, the type of sensor included in the external recognition sensor 25 is not limited to this example, and the external recognition sensor 25 may include other types of sensors. An example of a sensing area of each sensor included in the external recognition sensor 25 will be described later.
[0213] It should be noted that there is no particular limitation on the imaging method of the camera 51. For example, as needed, cameras using various imaging methods, such as a TOF (time of flight) camera capable of distance measurement, a stereo camera, a monocular camera, and an infrared camera, can be applied to the camera 51. The camera 51 is not limited thereto, and may be a camera used only for acquiring a captured image regardless of distance measurement.
[0214] In addition, for example, the exterior recognition sensor 25 may include an environmental sensor for detecting the environment of the vehicle 1. The environmental sensor is a sensor for detecting the environment including weather, meteorological phenomena, brightness, etc., and may include various sensors such as a raindrop sensor, a fog sensor, a sunshine sensor, a snow sensor, and / or an illumination sensor.
[0215] Furthermore, for example, the exterior recognition sensor 25 includes a microphone for detecting sounds around the vehicle 1 , the position of a sound source, and the like.
[0216] The in-vehicle sensor 26 includes various sensors for detecting information inside the vehicle, and provides sensor data from the corresponding sensors to corresponding units of the vehicle control system 11. The types and numbers of the various sensors included in the in-vehicle sensor 26 are not particularly limited as long as they allow the sensors to be actually installed in the vehicle 1.
[0217] For example, the in-vehicle sensor 26 may include one or more types of sensors among a camera, a radar, a seat sensor, a steering wheel sensor, a microphone, and a biometric sensor. As a camera included in the in-vehicle sensor 26, a camera using various imaging methods capable of measuring distance can be used, examples of which include a ToF camera, a stereo camera, a monocular camera, and an infrared camera. The camera included in the in-vehicle sensor 26 is not limited thereto, and the camera may be a camera used only to obtain a captured image regardless of distance measurement. The biometric sensor included in the in-vehicle sensor 26 is, for example, set in a seat, a steering wheel, etc. to detect various types of biometric information of a person on board such as a driver.
[0218] The vehicle sensor 27 includes various sensors for detecting the state of the vehicle 1, and provides sensor data from the corresponding sensors to corresponding units of the vehicle control system 11. The types and numbers of the various sensors included in the vehicle sensor 27 are not particularly limited as long as they allow the sensors to be actually installed in the vehicle 1.
[0219] For example, the vehicle sensor 27 includes a speed sensor, an acceleration sensor, an angular velocity sensor (gyro sensor), and an inertial measurement unit (IMU (Inertial Measurement Unit)) obtained by integrating these sensors. For example, the vehicle sensor 27 includes a steering angle sensor that detects the steering angle of the steering wheel, a yaw rate sensor, an acceleration sensor that detects the operation amount of the accelerator pedal, and a brake sensor that detects the operation amount of the brake pedal. For example, the vehicle sensor 27 includes a rotation sensor that detects the rotation speed of the engine or motor, an air pressure sensor that detects the tire air pressure, a slip rate sensor that detects the tire slip rate, and a wheel speed sensor that detects the rotation speed of the wheel. For example, the vehicle sensor 27 includes a battery sensor that detects the remaining amount and temperature of the battery, and an impact sensor that detects an external impact.
[0220] The storage unit 28 includes at least one of a nonvolatile storage medium or a volatile storage medium, and stores data and programs. The storage unit 28 is used as, for example, an EEPROM (Electrically Erasable Programmable Read-Only Memory) and a RAM (Random Access Memory), and as a storage medium, a magnetic storage device such as an HDD (Hard Disk Drive), a semiconductor storage device, an optical storage device, and a magneto-optical storage device can be applied. The storage unit 28 stores various programs and data used by the corresponding units of the vehicle control system 11. For example, the storage unit 28 includes an EDR (Event Data Recorder) and / or a DSSAD (Data Storage System for Automatic Driving), and stores information of the vehicle 1 before and after an event such as an accident and / or information acquired by the in-vehicle sensor 26.
[0221] The driving support / driving automation control unit 29 controls driving support and driving automation of the vehicle 1. For example, the driving support / driving automation control unit 29 includes an analyzing unit 61, an action planning unit 62, and an operation control unit 63.
[0222] The analysis unit 61 performs analysis processing of the vehicle 1 and the conditions around the vehicle 1. The analysis unit 61 includes a self-position estimation unit 71, a sensor fusion unit 72, and a recognition unit 73.
[0223] The self-position estimating unit 71 estimates the self-position of the vehicle 1 based on the sensor data from the external recognition sensor 25 and the high-precision map accumulated in the map information accumulation unit 23. For example, the self-position estimating unit 71 estimates the self-position of the vehicle 1 by generating a local map based on the sensor data from the external recognition sensor 25 and matching the local map with the high-precision map. As the position of the vehicle 1, for example, the center of the rear wheel pair axle is used as a reference.
[0224] The local map is, for example, a three-dimensional high-precision map, a placeholder grid map, etc. created using a technology such as SLAM (Simultaneous Localization and Mapping). The three-dimensional high-precision map is, for example, the above-mentioned point cloud map, etc. The placeholder grid map is a map in which the three-dimensional or two-dimensional space around the vehicle 1 is divided into grids (grids) of a predetermined size, and the occupancy state of the object is indicated for each grid. The occupancy state of the object is indicated, for example, by the presence or absence of the object or the probability of its existence. For example, the local map is also used for the detection processing and recognition processing of the condition outside the vehicle 1 by the recognition unit 73.
[0225] Note that the self-position estimating unit 71 may estimate the self-position of the vehicle 1 based on the position information acquired by the position information acquiring unit 24 and the sensor data from the vehicle sensor 27 .
[0226] The sensor fusion unit 72 performs sensor fusion processing to combine a plurality of different types of sensor data (e.g., image data provided from the camera 51 and sensor data provided from the radar 52) to obtain new information. Methods for combining different types of sensor data include integration, fusion, correlation, and the like.
[0227] The recognition unit 73 performs a detection process of detecting a condition outside the vehicle 1 and a recognition process of recognizing a condition outside the vehicle 1 .
[0228] For example, the recognition unit 73 performs detection processing and recognition processing of the conditions outside the vehicle 1 based on information from the exterior recognition sensor 25 , information from the self-position estimation unit 71 , information from the sensor fusion unit 72 , and the like.
[0229] Specifically, for example, the recognition unit 73 performs detection processing, recognition processing, etc. of objects around the vehicle 1. The object detection processing is, for example, a process of detecting the presence, size, shape, position, movement, etc. of an object. The object recognition processing is, for example, a process of recognizing attributes such as the type of an object and / or recognizing a specific object. It should be noted that the detection processing and the recognition processing are not necessarily clearly divided and may be at least partially overlapped.
[0230] For example, the recognition unit 73 detects objects around the vehicle 1 by performing clustering to classify point clouds based on sensor data from the radar 52, LiDAR 53, etc. into point group clusters. Thus, the presence, size, shape, and / or position of objects around the vehicle 1 are detected.
[0231] For example, the recognition unit 73 detects the movement of the object around the vehicle 1 by tracking the movement of the point cluster classified by clustering. Then, the speed and the moving direction (movement vector) of the object around the vehicle 1 are detected.
[0232] For example, the recognition unit 73 detects or recognizes vehicles, people, bicycles, obstacles, buildings, roads, traffic lights, traffic signs, road signs, etc. based on the image data provided from the camera 51. In addition, the recognition unit 73 recognizes the type of objects around the vehicle 1 by performing recognition processing such as semantic segmentation.
[0233] For example, the recognition unit 73 can perform recognition processing of traffic regulations around the vehicle 1 based on the map accumulated in the map information accumulation unit 23, the estimation result of the self-position by the self-position estimation unit 71, and the recognition result of the objects around the vehicle 1 by the recognition unit 73. Through this processing, the recognition unit 73 can recognize the position and state of traffic lights, the content of traffic signs and road signs, the content of traffic control, drivable lanes, etc.
[0234] For example, the recognition unit 73 may perform recognition processing of the environment around the vehicle 1. As the surrounding environment to be recognized by the recognition unit 73, there are weather, temperature, humidity, brightness, road surface conditions, and the like.
[0235] The action planning unit 62 creates an action plan of the vehicle 1. For example, the action planning unit 62 creates the action plan by performing path planning and path following.
[0236] It should be noted that path planning (global path planning) is the process of planning a rough path from the starting point to the destination. This path planning, also known as trajectory planning, also includes the process of generating a trajectory (local path planning) along the planned path in the vicinity of the vehicle 1, in which the vehicle 1 can travel safely and smoothly, taking into account the motion characteristics of the vehicle 1.
[0237] Path following is a process of planning an operation for safely and correctly traveling on a path planned by path planning within a planned time. For example, the action planning unit 62 may calculate a target speed and a target angular velocity of the vehicle 1 based on the result of the path following process.
[0238] The operation control unit 63 controls the operation of the vehicle 1 so as to implement the action plan created by the action planning unit 62 .
[0239] For example, the operation control unit 63 controls the steering control unit 81, the braking control unit 82, and the driving control unit 83 included in the vehicle control unit 32 described later to perform acceleration and deceleration control and direction control so that the vehicle 1 travels on the trajectory calculated by trajectory planning. For example, the operation control unit 63 performs cooperative control aimed at realizing ADAS functions such as collision avoidance or impact reduction, following driving, vehicle speed control, vehicle collision warning, and lane departure warning. For example, the operation control unit 63 performs cooperative control of driving automation and the like aimed at realizing autonomous driving of the vehicle regardless of the driver's operation.
[0240] The DMS 30 performs driver authentication processing, driver status recognition processing, etc. based on sensor data from the in-vehicle sensor 26, input data input to the HMI 31 described later, etc. Examples of the driver's status that can be recognized include physical condition, degree of wakefulness, concentration, fatigue, line of sight direction, degree of drunkenness, driving operation, posture, etc.
[0241] It should be noted that the DMS 30 can perform authentication processing of vehicle occupants other than the driver and recognition processing of the status of vehicle occupants. For example, the DMS 30 can perform recognition processing of the vehicle interior conditions based on sensor data from the in-vehicle sensor 26. Examples of vehicle interior conditions that can be recognized include temperature, humidity, brightness, odor, and the like.
[0242] The HMI 31 receives various types of data, instructions, and the like as input, and presents various types of data to a driver or the like.
[0243] The data input to the HMI 31 will be described schematically. The HMI 31 includes an input device for an individual to input data. The HMI 31 generates an input signal based on the data, instructions, etc. input by the input device, and provides the input signal to the corresponding unit of the vehicle control system 11. The HMI 31 includes, for example, operating members such as a touch panel, a button, a switch, and a joystick as an input device. The HMI 31 is not limited thereto, and may also include an input device that enables information to be input by methods other than manual operation, such as voice, gestures, etc. In addition, the HMI 31 may use, for example, a remote control device using infrared rays or radio waves and / or an external connection device such as a mobile device and a wearable device adapted to the operation of the vehicle control system 11 as an input device.
[0244] The presentation of data by HMI 31 will be described schematically. HMI 31 generates visual information, auditory information, and tactile information about the person on board or the outside of the vehicle. In addition, HMI 31 performs output control for controlling the output, output content, output timing, output method, etc. of each generated information. Examples of visual information that can be generated and output by HMI 31 include operation screens, status displays of the vehicle 1, alarm displays, images such as monitor images indicating the conditions around the vehicle 1, and information indicated by light. Examples of auditory information that can be generated and output by HMI 31 are information indicated by sound, such as voice guidance, alarm sounds, and alarm messages. In addition, examples of tactile information that can be generated and output by HMI 31 are information given to the person on board by force, vibration, motion, etc.
[0245] As an output device to which the HMI 31 outputs visual information, for example, a display device that presents visual information by displaying an image by itself, and / or a projector device that presents visual information by projecting an image can be applied. It should be noted that, in addition to a typical display device including a display, the display device can also be a device that displays visual information in the field of vision of a person on the vehicle, such as a head-up display, a transmissive display, or a wearable device with an AR (augmented reality) function. In addition, the HMI 31 can also use a display device included in a navigation device, an instrument panel, a CMS (camera monitoring system), an electronic rearview mirror, a light, etc., provided in the vehicle 1, as an output device for outputting visual information.
[0246] As an output device to which the HMI 31 outputs auditory information, for example, an audio speaker, earphones, and / or a receiver may be applied.
[0247] As an output device to which the HMI 31 outputs tactile information, for example, a tactile element using tactile technology can be applied. The tactile element is provided in a portion of the vehicle 1 that contacts a person on board, such as a steering wheel or a seat, for example.
[0248] The vehicle control unit 32 controls respective units of the vehicle 1. The vehicle control unit 32 includes a steering control unit 81, a brake control unit 82, a drive control unit 83, a body system control unit 84, a lamp control unit 85, and a horn control unit 86.
[0249] The steering control unit 81 detects and controls the state of the steering system of the vehicle 1. The steering system includes, for example, a steering mechanism including a steering wheel, an electric power steering device, etc. The steering control unit 81 includes, for example, a steering ECU that controls the steering system, an actuator that drives the steering system, etc.
[0250] The brake control unit 82 detects and controls the state of the brake system of the vehicle 1. The brake system includes, for example, a brake mechanism including a brake pedal, an ABS (anti-lock brake system), a regenerative brake mechanism, etc. The brake control unit 82 includes, for example, a brake ECU that controls the brake system, an actuator that drives the brake system, etc.
[0251] The drive control unit 83 detects and controls the state of the drive system of the vehicle 1. The drive system includes, for example, an accelerator pedal, a drive force generating device for generating a drive force of an internal combustion engine, a drive motor, etc., a drive force transmission mechanism for transmitting the drive force to the wheels, etc. The drive control unit 83 includes, for example, a drive ECU for controlling the drive system, an actuator for driving the drive system, etc.
[0252] The body system control unit 84 detects and controls the state of the body system of the vehicle 1. The body system includes, for example, a keyless entry system, a smart key system, a power window device, a power seat, an air conditioner, an airbag, a seat belt, a shift lever, etc. The body system control unit 84 includes, for example, a body system ECU that controls the body system, an actuator that drives the body system, etc.
[0253] The light control unit 85 performs detection and control of the states of various lights of the vehicle 1. Examples of lights to be controlled include headlights, taillights, fog lights, turn signals, brake lights, projection lights, bumper indicators, etc. The light control unit 85 includes a light ECU that controls the lights, an actuator that drives the lights, etc.
[0254] The horn control unit 86 performs detection and control of the state of the car horn of the vehicle 1. The horn control unit 86 includes, for example, a horn ECU for controlling the car horn, an actuator for driving the car horn, and the like.
[0255] Fig.31 It is a graphic description Fig.30 25, the radar 52, the LiDAR 53, the ultrasonic sensor 54, etc., of the external recognition sensor 25. Note that, Fig.31 The diagram schematically illustrates a state of the vehicle 1 viewed from above, wherein the left end side is the front end (front) side of the vehicle 1 , and the right end side is the rear end (rear) side of the vehicle 1 .
[0256] The sensing area 101F and the sensing area 101B indicate examples of sensing areas of the ultrasonic sensors 54. The sensing area 101F covers the front periphery of the vehicle 1 by the plurality of ultrasonic sensors 54. The sensing area 101B covers the rear periphery of the vehicle 1 by the plurality of ultrasonic sensors 54.
[0257] The sensing results in the sensing area 101F and the sensing area 1011B are used for, for example, parking assistance of the vehicle 1 .
[0258] Sensing areas 102F to 102B indicate examples of sensing areas of the short-range or medium-range radar 52. Sensing area 102F covers a position farther in front of the vehicle 1 than sensing area 101F. Sensing area 102B covers a position farther behind the vehicle 1 than sensing area 101B. Sensing area 102L covers the rear periphery of the left side of the vehicle 1. Sensing area 102R covers the rear periphery of the right side of the vehicle 1.
[0259] The sensing result in the sensing area 102F is used, for example, to detect a vehicle or pedestrian in front of the vehicle 1. The sensing result in the sensing area 102B is used, for example, for a collision prevention function behind the vehicle 1. The sensing results in the sensing area 102L and the sensing area 102R are used, for example, for detecting an object in a side blind spot of the vehicle 1.
[0260] Sensing areas 103F to 103B indicate examples of sensing areas of the camera 51. The sensing area 103F covers a position farther in front of the vehicle 1 than the sensing area 102F. The sensing area 103B covers a position farther behind the vehicle 1 than the sensing area 102B. The sensing area 103L covers the periphery of the left side of the vehicle 1. The sensing area 103R covers the periphery of the right side of the vehicle 1.
[0261] The sensing results in the sensing area 103F can be used, for example, for the recognition of traffic lights and / or traffic signs, a lane departure prevention assistance system, and / or an automatic headlight control system. The sensing results in the sensing area 103B can be used, for example, for parking assistance and a surround view system. The sensing results in the sensing areas 103L and 103R can be used, for example, for a surround view system.
[0262] The sensing area 104 indicates an example of the sensing area of the LiDAR 53. The sensing area 104 covers a position farther in front of the vehicle 1 than the sensing area 103F. On the other hand, the range of the sensing area 104 in the left-right direction is narrower than that of the sensing area 103F.
[0263] The sensing results in the sensing area 104 are used, for example, to detect objects such as surrounding vehicles.
[0264] The sensing area 105 indicates an example of the sensing area of the long-range radar 52 .
[0265] The sensing area 105 covers a position farther in front of the vehicle 1 than the sensing area 104. On the other hand, the sensing area 105 is narrower than the sensing area 104 in the left-right direction.
[0266] The sensing result in the sensing area 105 is used for ACC (Adaptive Cruise Control), emergency braking, collision avoidance, etc., for example.
[0267] It is to be noted that the sensing area of each of the camera 51, the radar 52, the LiDAR 53, and the ultrasonic sensor 54 included in the exterior recognition sensor 25 may have a range other than Figure 2 Specifically, the ultrasonic sensor 54 can also sense the side of the vehicle 1, and / or the LiDAR 53 can sense the rear of the vehicle 1. In addition, the installation position of each sensor is not limited to each of the above examples. In addition, the number of each sensor can be one or more.
[0268] It should be noted that at least a part of the detection process and the recognition process of the recognition unit 73 can be performed by the image pickup device 2. For example, a processor (not shown) can be mounted on the connector substrate 500 and / or the imager substrate 700 of the image pickup device 2, so that the processor performs at least a part of the detection process and the recognition process of the recognition unit 73. Alternatively, another substrate (not shown) different from the connector substrate 500 and the imager substrate 700 can be accommodated in the image pickup device 2, so that the processor mounted on the substrate performs at least a part of the detection process and the recognition process of the recognition unit 73. In this case, for example, the substrate can be provided between the connector substrate 500 and the imager substrate 700. According to the present embodiment, as described above, the internal space of the rear housing 100 can be used as effectively as possible, and the internal space for accommodating components as the box-type rear chassis 200 can be maximized. Therefore, other substrates can be further accommodated in the internal space. In addition, by maximizing the internal space, other substrates on which processors that perform information processing other than the detection process and the recognition process of the recognition unit 73 are mounted can be accommodated in the image pickup device 2.
[0269] The present disclosure may also adopt the following configurations.
[0270] (1) An electronic device comprising:
[0271] a substrate unit including an electronic component;
[0272] A first chassis, the first chassis is formed of a conductive material and includes a box body portion, the box body portion includes a first base portion, a first side wall and a second side wall, and accommodates the substrate unit, the first side wall and the second side wall are arranged in the first base portion and are opposite to each other in any one direction orthogonal to the first direction;
[0273] a first housing, the first housing including a bottom surface and a first opening portion that are opposite to each other in a first direction, accommodating the first chassis so that the first base portion is opposite to the bottom surface in the first direction, and being in a state where the first side wall and the second side wall are electrically connected to each other by pushing at least one of the first side wall and the second side wall in at least any one direction orthogonal to the first direction by an inner surface of the first housing;
[0274] a second chassis formed of a conductive material and including a second base portion opposed to the substrate unit in the first direction; and
[0275] The second housing includes a second opening portion joined to the first opening portion and fixes the first chassis and the second chassis in a state where the first opening portion and the second opening portion are joined to each other in a first direction so that the first chassis and the second chassis are electrically connected.
[0276] (2) The electronic device according to (1), wherein
[0277] The first housing has a tapered shape that widens from the bottom surface toward the first opening portion, and
[0278] When the first chassis is accommodated in the first housing, the first side wall and the second side wall widen from the first base portion along the tapered shape.
[0279] (3) The electronic device according to (1) or (2), wherein
[0280] The first side wall and the second side wall are at least partially separated from each other when not accommodated in the first housing.
[0281] (4) The electronic device according to any one of (1) to (3), wherein
[0282] One of the first side wall and the second side wall each includes one or more protruding portions which protrude relatively in a direction in which the first side wall and the second side wall are opposite to each other.
[0283] (5) The electronic device according to (4), wherein
[0284] The other of the first side wall and the second side wall each includes one or more receiving holes engaged with the one or more raised portions.
[0285] (6) The electronic device according to any one of (1) to (5), wherein
[0286] One of the first side wall and the second side wall each includes two or more convex portions which protrude relatively in a direction in which the first side wall and the second side wall are opposite to each other and are arranged apart from each other in the first direction, and
[0287] The one or the other of the first side wall and the second side wall each includes one or more slit portions disposed between the two or more convex portions in the first direction and extending in a direction including a component of a direction orthogonal to the first direction.
[0288] (7) The electronic device according to any one of (1) to (6), wherein
[0289] The first chassis includes a pair of first contact members and a pair of second contact members disposed in the box portion,
[0290] The first housing accommodates the first chassis so that the pair of first contact members and the pair of second contact members are exposed from the first opening portion,
[0291] The second chassis includes a pair of third contact members and a pair of fourth contact members disposed in the base portion, and
[0292] The second shell fixes the first chassis and the second chassis so that when the first opening portion and the second opening portion are engaged with each other in the first direction, the pair of first contact members and the pair of third contact members are electrically connected at two or more first contact points, and the pair of second contact members and the pair of fourth contact members are electrically connected at two or more second contact points.
[0293] (8) The electronic device according to (7), wherein
[0294] The third contact member of the second chassis is bendable in a second direction orthogonal to the first direction, and
[0295] When the first opening portion of the first shell and the second opening portion of the second shell are engaged with each other in the first direction, the second shell presses the third contact member of the second chassis against the first contact member of the first chassis in the second direction, so that the first contact member and the third contact member are electrically connected at the first contact point.
[0296] (9) The electronic device according to (8), wherein
[0297] The third contact member of the second chassis is capable of opening and closing in the second direction by bending in the second direction,
[0298] The second housing pushes the third contact member of the second chassis in the second direction to close the third contact member, and
[0299] The first contact member of the first chassis is inserted into the third contact member closed by the second housing in the first direction so that the third contact member is bent in the second direction to clamp the first contact member in the second direction, and the first contact member and the third contact member are electrically connected at the first contact point.
[0300] (10) The electronic device according to (8) or (9), wherein
[0301] When the first chassis and the second chassis are fixed by the second shell, the thickness of the to-be-clamped portion of each first contact member, i.e., the portion to be clamped by the third contact member, in the second direction is greater than the thickness of the non-contact portion of each first contact member, i.e., the portion not in contact with the third contact member, in the second direction.
[0302] (11) The electronic device according to any one of (7) to (10), wherein
[0303] The fourth contact member of the second chassis is bendable in the first direction, and
[0304] When the first opening portion of the first shell and the second opening portion of the second shell are engaged with each other in the first direction, the second contact member of the first chassis and the fourth contact member of the second chassis are pressed relative to each other in the first direction, so that the second contact member and the fourth contact member are electrically connected at the second contact point.
[0305] (12) The electronic device according to (11), wherein
[0306] The second contact members of the first chassis each protrude from a first fulcrum provided in the box portion in a direction including a component of a third direction orthogonal to the first direction,
[0307] The fourth contact members of the second chassis each protrude from a second fulcrum provided in the second base portion in a direction including a component of the third direction,
[0308] The length of the fourth contact member of the second chassis in the third direction is greater than the length of the second contact member of the first chassis in the third direction,
[0309] The second fulcrum of the second chassis is closer to the inner side of the electronic device in the third direction than the first fulcrum of the first chassis.
[0310] The second contact member of the first chassis is inclined toward the fourth contact member of the second chassis, and
[0311] At the second contact point, an inclination angle of the second contact member of the first chassis with respect to the third direction is greater than an inclination angle of the fourth contact member of the second chassis with respect to the third direction.
[0312] (13) The electronic device according to (12), wherein
[0313] The fourth contact member of the second chassis includes a space portion penetrating in the first direction between the second fulcrum and the second contact point.
[0314] (14) The electronic device according to any one of (7) to (13), wherein
[0315] The two or more second contact members are electrically connected to one of the fourth contact members at the second contact point.
[0316] (15) The electronic device according to any one of (7) to (10), wherein
[0317] The fourth contact member of the second chassis is bendable in a third direction orthogonal to the first direction, and
[0318] When the first opening portion of the first shell and the second opening portion of the second shell are engaged with each other in the first direction, the second contact member of the first chassis and the fourth contact member of the second chassis are pressed relative to each other in the third direction, so that the second contact member and the fourth contact member are electrically connected at the second contact point.
[0319] (16) The electronic device according to any one of (7) to (15), wherein
[0320] When viewed along the first direction, the two or more first contact points and the two or more second contact points are arranged at positions corresponding to four sides of the rectangle.
[0321] (17) The electronic device according to any one of (1) to (16), wherein
[0322] The first chassis is formed of a metal material as the conductive material,
[0323] The second chassis is formed of a metal material as the conductive material, and
[0324] The electrical connection between the first chassis and the second chassis does not include an electrical connection through other members formed of a conductive material other than the first chassis and the second chassis.
[0325] (18) The electronic device according to any one of (1) to (17), wherein
[0326] The electronic assembly includes an imager device, and
[0327] The electronic apparatus further includes a lens block including a lens held in the first housing or the second housing and optically connected to the imager device when the first direction is set as an optical axis direction.
[0328] (19) An image pickup device comprising:
[0329] a substrate unit including an electronic assembly including an imager device;
[0330] A first chassis, the first chassis is formed of a conductive material and includes a box body portion, the box body portion includes a first base portion, a first side wall and a second side wall, and accommodates the substrate unit, the first side wall and the second side wall are arranged in the first base portion and are opposite to each other in any one direction orthogonal to the first direction;
[0331] a first housing, the first housing including a bottom surface and a first opening portion that are opposite to each other in a first direction, accommodating the first chassis so that the first base portion is opposite to the bottom surface in the first direction, and being in a state where the first side wall and the second side wall are electrically connected to each other by pushing at least one of the first side wall and the second side wall in at least any one direction orthogonal to the first direction by an inner surface of the first housing;
[0332] a second chassis formed of a conductive material and including a second base portion opposed to the substrate unit in the first direction;
[0333] a second housing including a second opening portion joined to the first opening portion and fixing the first chassis and the second chassis in a state where the first opening portion and the second opening portion are joined to each other in the first direction so that the first chassis is electrically connected to the second chassis; and
[0334] A lens unit is held in the first housing or the second housing and is optically connected to the imager device when the first direction is set as the optical axis direction.
[0335] Although the embodiments and modifications of the present technology have been described above, the present technology is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present technology.
[0336] Reference numerals list
[0337] 100 rear housing
[0338] 1000 lens blocks
[0339] 1001 front housing
[0340] 1002 lens
[0341] 2 Image pickup device
[0342] 200 rear chassis
[0343] 3 base unit
[0344] 300 Heat sink
[0345] 400 Heat sink
[0346] 500 Connector Base Plate
[0347] 600 Substrate Holder
[0348] 700 Imager Substrate
[0349] 800 front chassis
[0350] 900 Dust-proof sheet
Claims
1. An electronic device, comprising: a substrate unit including an electronic component; A first chassis, the first chassis is formed of a conductive material and includes a box body portion, the box body portion includes a first base portion, a first side wall and a second side wall, and accommodates the substrate unit, the first side wall and the second side wall are arranged in the first base portion and are opposite to each other in any one direction orthogonal to the first direction; a first housing, the first housing including a bottom surface and a first opening portion that are opposite to each other in a first direction, accommodating the first chassis so that the first base portion is opposite to the bottom surface in the first direction, and being in a state where the first side wall and the second side wall are electrically connected to each other by pushing at least one of the first side wall and the second side wall in at least any one direction orthogonal to the first direction by an inner surface of the first housing; a second chassis, the second chassis being formed of a conductive material and including a second base portion opposite to the substrate unit in the first direction; and The second housing includes a second opening portion joined to the first opening portion and fixes the first chassis and the second chassis in a state where the first opening portion and the second opening portion are joined to each other in a first direction so that the first chassis and the second chassis are electrically connected.
2. The electronic device according to claim 1, wherein The first housing has a tapered shape that widens from the bottom surface toward the first opening portion, and When the first chassis is accommodated in the first housing, the first side wall and the second side wall widen from the first base portion along the tapered shape.
3. The electronic device according to claim 1, wherein The first side wall and the second side wall are at least partially separated from each other when not accommodated in the first housing.
4. The electronic device according to claim 1, wherein One of the first side wall and the second side wall each includes one or more protruding portions which protrude relatively in a direction in which the first side wall and the second side wall are opposite to each other.
5. The electronic device according to claim 4, wherein The other of the first side wall and the second side wall each includes one or more receiving holes engaged with the one or more raised portions.
6. The electronic device according to claim 1, wherein One of the first side wall and the second side wall each includes two or more convex portions which protrude relatively in a direction in which the first side wall and the second side wall are opposite to each other and are arranged apart from each other in the first direction, and The one or the other of the first side wall and the second side wall each includes one or more slit portions disposed between the two or more convex portions in the first direction and extending in a direction including a component of a direction orthogonal to the first direction.
7. The electronic device according to claim 1, wherein The first chassis includes a pair of first contact members and a pair of second contact members disposed in the box portion, The first housing accommodates the first chassis so that the pair of first contact members and the pair of second contact members are exposed from the first opening portion, The second chassis includes a pair of third contact members and a pair of fourth contact members disposed in the base portion, and The second shell fixes the first chassis and the second chassis so that when the first opening portion and the second opening portion are engaged with each other in the first direction, the pair of first contact members and the pair of third contact members are electrically connected at two or more first contact points, and the pair of second contact members and the pair of fourth contact members are electrically connected at two or more second contact points.
8. The electronic device according to claim 7, wherein The third contact member of the second chassis is bendable in a second direction orthogonal to the first direction, and When the first opening portion of the first shell and the second opening portion of the second shell are engaged with each other in the first direction, the second shell presses the third contact member of the second chassis against the first contact member of the first chassis in the second direction, so that the first contact member and the third contact member are electrically connected at the first contact point.
9. The electronic device according to claim 8, wherein The third contact member of the second chassis is capable of opening and closing in the second direction by bending in the second direction, The second housing pushes the third contact member of the second chassis in the second direction to close the third contact member, and The first contact member and the third contact member are electrically connected at a first contact point by inserting the first contact member of the first chassis in the first direction into the third contact member closed by the second housing so that the third contact member is bent in the second direction to clamp the first contact member in the second direction.
10. The electronic device according to claim 8, wherein When the first chassis and the second chassis are fixed by the second shell, the clamped portion of each first contact member, that is, the portion to be clamped by the third contact member, has a thickness in the second direction that is greater than the non-contact portion of each first contact member, that is, the portion that does not contact the third contact member.
11. The electronic device according to claim 7, wherein The fourth contact member of the second chassis is bendable in the first direction, and When the first opening portion of the first shell and the second opening portion of the second shell are engaged with each other in the first direction, the second contact member of the first chassis and the fourth contact member of the second chassis are pressed relative to each other in the first direction, so that the second contact member and the fourth contact member are electrically connected at the second contact point.
12. The electronic device according to claim 11, wherein The second contact members of the first chassis each protrude from a first fulcrum provided in the box portion in a direction including a component of a third direction orthogonal to the first direction, The fourth contact members of the second chassis each protrude from a second fulcrum provided in the second base portion in a direction including a component of the third direction, The length of the fourth contact member of the second chassis in the third direction is greater than the length of the second contact member of the first chassis in the third direction, The second fulcrum of the second chassis is closer to the inner side of the electronic device in the third direction than the first fulcrum of the first chassis. The second contact member of the first chassis is inclined toward the fourth contact member of the second chassis, and At the second contact point, an inclination angle of the second contact member of the first chassis with respect to the third direction is greater than an inclination angle of the fourth contact member of the second chassis with respect to the third direction.
13. The electronic device according to claim 12, wherein The fourth contact member of the second chassis includes a space portion penetrating in the first direction between the second fulcrum and the second contact point.
14. The electronic device according to claim 7, wherein The two or more second contact members are electrically connected to one of the fourth contact members at the second contact point.
15. The electronic device according to claim 7, wherein The fourth contact member of the second chassis is bendable in a third direction orthogonal to the first direction, and When the first opening portion of the first shell and the second opening portion of the second shell are engaged with each other in the first direction, the second contact member of the first chassis and the fourth contact member of the second chassis are pressed relative to each other in the third direction, so that the second contact member and the fourth contact member are electrically connected at the second contact point.
16. The electronic device according to claim 7, wherein When viewed along the first direction, the two or more first contact points and the two or more second contact points are arranged at positions corresponding to four sides of the rectangle.
17. The electronic device according to claim 1, wherein The first chassis is formed of a metal material as the conductive material, The second chassis is formed of a metal material as the conductive material, and The electrical connection between the first chassis and the second chassis does not include an electrical connection through other members formed of a conductive material other than the first chassis and the second chassis.
18. The electronic device according to claim 1, wherein The electronic assembly includes an imager device, and The electronic apparatus further includes a lens block including a lens held in the first housing or the second housing and optically connected to the imager device when the first direction is set as an optical axis direction.
19. An image pickup device, comprising: a substrate unit including an electronic assembly including an imager device; A first chassis, the first chassis is formed of a conductive material and includes a box body portion, the box body portion includes a first base portion, a first side wall and a second side wall, and accommodates the substrate unit, the first side wall and the second side wall are arranged in the first base portion and are opposite to each other in any one direction orthogonal to the first direction; a first housing, the first housing including a bottom surface and a first opening portion that are opposite to each other in a first direction, accommodating the first chassis so that the first base portion is opposite to the bottom surface in the first direction, and being in a state where the first side wall and the second side wall are electrically connected to each other by pushing at least one of the first side wall and the second side wall in at least any one direction orthogonal to the first direction by an inner surface of the first housing; a second chassis formed of a conductive material and including a second base portion opposed to the substrate unit in the first direction; a second housing including a second opening portion joined to the first opening portion and fixing the first chassis and the second chassis in a state where the first opening portion and the second opening portion are joined to each other in a first direction so that the first chassis is electrically connected to the second chassis; and A lens unit is held in the first housing or the second housing and is optically connected to the imager device when the first direction is set as the optical axis direction.
Citation Information
Patent Citations
Electronic apparatus, imaging device, and movable body
JP2020177195A