Lighting device and camera unit
The lighting device addresses heat dissipation issues in integrated security cameras by using a housing with a heat conduction part and auxiliary material to prevent thermal damage, ensuring reliable operation under various conditions.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2026-04-02
Smart Images

Figure 2026057186000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a lighting device and a camera unit.
Background Art
[0002] Conventionally, from the viewpoint of improving security around houses in ordinary households and in commercial stores, etc., outdoor lighting fixtures configured to be able to incorporate or attach a security camera are known (for example, Patent Document 1).
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] However, in conventional lighting fixtures incorporating a security camera, including the outdoor lighting fixture described in Patent Document 1, it is common to control the camera unit by a control circuit provided on a control board stored in the lighting fixture body. However, as the control of the camera unit becomes complex, the heat generated from the control circuit also becomes high temperature. Therefore, if the heat generated from the control circuit is not appropriately radiated, there is a high possibility that the function of the camera unit will deteriorate due to thermal damage of the control board.
[0005] The present invention has been made in view of such problems, and an object thereof is to provide a lighting device and a camera unit capable of efficiently discharging the heat generated from a control board included in the camera unit to the outside.
Means for Solving the Problems
[0006] The lighting device according to the present invention comprises a lighting unit having a light-emitting part, and a camera unit attachable to the lighting unit, wherein the camera unit includes a camera part capable of photographing the surroundings, a control board equipped with a control circuit capable of controlling at least one of the lighting unit and the camera part, and a housing for housing the control board, wherein the control board is provided such that the control circuit faces the inner surface of the housing, and the housing is provided with a heat conduction part on the surface facing the control circuit, and is configured to dissipate heat generated from the control circuit to the outside of the housing via the heat conduction part.
[0007] In the lighting device according to the present invention, the housing has a through hole on the surface facing the control circuit, and the heat conducting portion may be embedded in the through hole.
[0008] In the lighting device according to the present invention, the heat conducting portion may include a flat plate portion that can make surface contact with the outer surface of the housing and a protruding portion that can be inserted into the through hole.
[0009] In the lighting device according to the present invention, the heat conduction section further comprises a heat conduction auxiliary material capable of absorbing heat generated from the control circuit, and the heat conduction auxiliary material may be provided between the control circuit and the inner surface of the housing.
[0010] In the lighting device according to the present invention, the heat conduction auxiliary material may be formed of an insulating material.
[0011] In the lighting device according to the present invention, the camera unit may further include a heat sink configured to be attachable to the housing.
[0012] In the lighting device according to the present invention, the camera unit may further include a spacer member configured to be insertable between the housing and the heat sink.
[0013] The camera unit according to the present invention is a camera unit that can be attached to an illumination device having an illumination unit, and includes a camera unit capable of photographing the surroundings, a control board equipped with a control circuit capable of controlling at least one of the illumination unit and the camera unit, and a housing that houses the control board, wherein the control board is provided such that the control circuit faces the inner surface of the housing, and the housing is provided with a heat conduction part on the surface facing the control circuit, and is configured to release heat generated from the control circuit to the outside of the housing via the heat conduction part.
[0014] The camera unit according to the present invention may be configured to be detachably attached to the illumination unit. [Effects of the Invention]
[0015] According to the present invention, it becomes possible to more efficiently dissipate heat generated from the control board included in the camera unit to the outside. [Brief explanation of the drawing]
[0016] [Figure 1] This is a schematic diagram showing a lighting device according to this embodiment. [Figure 2] This is a schematic diagram showing the lighting device according to this embodiment with the camera unit removed. [Figure 3] This is a schematic diagram showing the camera unit according to this embodiment. [Figure 4] This is a cross-sectional view showing the camera unit according to this embodiment. [Figure 5] This is a rear perspective view showing the housing of the camera unit according to this embodiment. [Figure 6] This is an exploded view showing the various components of the housing of the camera unit according to this embodiment. [Modes for carrying out the invention]
[0017] Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. Note that the following embodiments do not limit the invention according to each claim, and not all combinations of features described in the embodiments are essential for the solution means of the invention. Also, the drawings are schematic diagrams that are appropriately emphasized, omitted, or adjusted in ratio to show the present invention, and may differ from the actual shape, positional relationship, and ratio.
[0018] [Configuration of the lighting device according to this embodiment] First, referring to FIG. 1, the lighting device 1 according to this embodiment will be outlined. As shown in FIG. 1, the lighting device 1 according to this embodiment includes a lighting unit 10 having a light emitting part 12 and a camera unit 100 that can be attached to the lighting unit 10. In this embodiment, the lighting device 1 may include only one lighting unit 10 or a plurality of lighting units 10 as shown in FIG. 1.
[0019] The lighting device 1 according to this embodiment is attached to an arbitrary position in a building or an outdoor installation. Specifically, the lighting device 1 is attached, for example, to the entrance of a house, a side entrance, under the eaves, a gate, a parking lot, etc. Also, the lighting device 1 may be an apartment building such as an apartment or a condominium, or a welfare facility for the elderly such as a nursing home, a senior housing with services, a group home, etc., or an entrance or exit of a building where a specific number of people come and go, such as an office building, or an entrance or exit of each floor.
[0020] Furthermore, the lighting device 1 is attached to the entrance or on the premises of a building where an unspecified number of people come and go, such as a hospital, a school, an art museum, a museum, and a library, or a restaurant, a retail store, a lodging facility, and a showroom. Additionally, it can be attached to streetlights on the road, telephone poles, poles, etc., and can also be installed in a shopping street, a construction site, etc.
[0021] The lighting unit 10 has a dimming function and a color adjustment function, and is configured to be able to change the illuminance, color temperature, and emission color of the light emitting part 12. In this embodiment, the light emitting part 12 is a replaceable LED bulb, but is not limited to this. For example, the light emitting part 12 may be an integrated LED lighting or the like.
[0022] Furthermore, as shown in Figure 2, the lighting unit 10 includes a housing 14 to which the light-emitting unit 12 can be attached. The housing 14 has a socket 16 to which the light-emitting unit 12 can be electrically connected, and a unit storage section 18 to which the camera unit 100 can be attached. The unit storage section 18 is configured to be attached to the wall or ceiling of a building using mounting brackets.
[0023] Furthermore, the inner surface of the unit storage section 18 is provided with an illumination-side electronic contact (not shown) that can be electrically connected to the unit-side electronic contact, which will be described later. The illumination-side electronic contact is connected to the wiring of the illumination unit 10, and when the camera unit 100 is attached to the unit storage section 18, the unit-side electronic contact and the illumination-side electronic contact are electrically connected, thereby supplying power to the illumination unit 10.
[0024] In this embodiment, the lighting unit 10 is a porch light, but it is not limited to this and may be various lighting fixtures such as spotlights, downlights, or ceiling lights. Also, in this embodiment, the lighting fixtures include not only residential lighting fixtures but also commercial lighting fixtures. Furthermore, the shape of the porch light is not limited to the round shape shown in Figure 1, but may be square or other shapes.
[0025] [Configuration of the camera unit according to this embodiment] As shown in Figures 3 to 6, the camera unit 100 includes a camera unit 110 capable of photographing the area around the illumination unit 10, a control board 102 equipped with a control circuit 102a capable of controlling at least one of the illumination unit 10 and the camera unit 110, and a housing 101 housing the control board 102. Furthermore, the camera unit 100 according to this embodiment further includes a heat conduction auxiliary material 103B capable of absorbing heat generated from the control circuit 102a of the control board 102, a heat sink 104 configured to be attachable to the housing 101, and a spacer member 105 configured to be insertable between the housing 101 and the heat sink 104. Furthermore, the camera unit 100 according to this embodiment further includes a power supply unit 30 configured to be connectable to an external power supply and supplying power to the illumination unit 10 and the camera unit 110, and a connection unit 106 connecting the housing 101 and the camera unit 110. In addition to the configuration described above, the camera unit 100 may further include a storage unit (not shown) capable of storing image information captured by the camera unit 110, and an illuminance sensor (not shown) capable of measuring the illuminance around the lighting device 1, among other configurations for adding various functions.
[0026] In the following description, when the camera unit 100 according to this embodiment is attached to the illumination unit 10 (i.e., the state shown in Figure 1), the direction in which the illumination unit 10 is located (upward in Figure 1) will be described as "upwards," and the direction in which the camera unit 100 is located (downward in Figure 1) will be described as "downwards." Furthermore, the direction in which the lens 120 of the camera unit 100, which will be described later, is located (i.e., leftward in Figure 4) will be described as "forward," and the opposite direction will be described as "rearward." However, the up-down and front-back directions in this specification are merely formal directions defined for the convenience of explanation and are not necessarily the up-down directions, etc., in actual use.
[0027] As shown in Figure 4, the housing 101 is formed in the shape of a rectangular box having a longitudinal direction and a transverse direction, as well as an internal space, and is configured to house the control board 102, heat conduction auxiliary material 103B, power supply unit 30, etc., which will be described later, in this internal space. The shape of the housing 101 is not limited to this, and various known shapes can be adopted as long as they are configured to house the control board 102, etc., in the internal space.
[0028] The housing 101 according to this embodiment is configured to be detachable from the unit storage section 18 provided in the lighting unit 10. That is, the camera unit 100 according to this embodiment is configured to be detachable from the lighting unit 10. Here, from the viewpoint of efficiently dissipating heat generated from the control circuit 102a of the control board 102 stored in the internal space of the housing 101, the lower end of the housing 101 is configured not to be stored inside the unit storage section 18 when the housing 101 is stored in the unit storage section 18 of the lighting unit 10 (the state in Figure 1). That is, in the lighting device 1 according to this embodiment, the lower end of the housing 101 is not stored in the unit storage section 18 and is exposed so as to be in contact with the outside air.
[0029] As described above, by configuring the camera unit 100 according to this embodiment to be detachable from the lighting unit 10, it becomes easier to respond to malfunctions or deterioration of the camera unit 100. Furthermore, in the lighting device 1 according to this embodiment, since the lower end of the housing 101 is exposed to contact with the outside air, it is possible to effectively dissipate heat generated from the control circuit 102a of the control board 102 housed in the internal space of the housing 101, and it is also possible to suppress the conduction of heat into the unit storage section 18 and prevent deterioration of the unit storage section 18.
[0030] Furthermore, the housing 101 according to this embodiment is provided with a heat conduction section 103 on the surface facing the control circuit 102a of the control board 102, which will be described later, and is configured to dissipate heat generated from the control circuit 102a of the control board 102 to the outside of the housing 101 via the heat conduction section 103. Specifically, the housing 101 has a through hole 101c on the surface facing the control circuit 102a of the control board 102 (i.e., the back surface), and the heat conduction section 103 is embedded in the through hole 101c, thereby enabling heat generated from the control circuit 102a to dissipate via the heat conduction section 103. In the following description, the housing 101 and the heat conduction section 103 are described as separate components configured to be assembled to each other, but the invention is not limited to this, and for example, the housing 101 and the heat conduction section 103 may be formed integrally, such as when a part or all of the back surface of the housing 101 functions as the heat conduction section 103.
[0031] As shown in Figure 6, the back surface of the housing 101 is provided with a receiving portion 101a capable of receiving the flat plate portion 103a of the heat conduction plate 103A of the heat conduction section 103 (described later), an outer casing portion 101b formed around the receiving portion 101a and defining the receiving portion 101a, and a through hole 101c into which the protrusion 103b of the heat conduction plate 103A can be inserted. Since the receiving portion 101a and the outer casing portion 101b are formed on the back surface of the housing 101 in this way, the heat conduction plate 103A can be tightly attached to the back surface of the housing 101, thereby reducing the possibility of the heat conduction plate 103A falling off. Furthermore, since a through hole 101c is formed on the back surface of the housing 101, there is an advantage in that the heat conduction efficiency of the heat conduction section 103 can be further improved by inserting the protrusion 103b of the heat conduction plate 103A into the through hole 101c and directly drawing heat from the inside of the housing 101 through the protrusion 103b.
[0032] The receiving portion 101a is a region formed to approximately the same dimensions as the flat plate portion 103a of the heat conductive plate 103A, so that the flat plate portion 103a of the heat conductive plate 103A can be fitted tightly into it. The outer casing portion 101b is provided projecting from the back surface of the housing 101 toward the rear. Here, the length of the upper and lower middle portions of the outer casing portion 101b in the front-rear direction is configured to be approximately the same as the length (thickness) of the flat plate portion 103a of the heat conductive plate 103A in the front-rear direction. As a result, when the heat conductive plate 103A is fitted into the receiving portion 101a, no step is created between the outer casing portion 101b and the heat conductive plate 103A, thus improving the aesthetic design of the camera unit 100. On the other hand, the length of the outer casing portion 101b near the lower end in the front-rear direction is formed to be shorter than the length (thickness) of the flat plate portion 103a of the heat conductive plate 103A in the front-rear direction. In other words, the area near the bottom of the outer casing 101b is formed to be lower than the middle and upper parts in the vertical direction. With this configuration, when the heat sink 104, which will be described later, is attached to the housing 101, the flat plate portion 103a of the heat conduction plate 103A can be brought into close contact with the heat sink 104, thereby improving the heat dissipation efficiency of the heat sink 104.
[0033] The through-hole 101c is provided in the rear surface of the housing 101, penetrating in the front-to-back direction, and is formed at a location corresponding to the position of the control circuit 102a of the control board 102 when the control board 102 is housed in the housing 101 (as shown in Figures 4 and 5). Here, "corresponding location" is not limited to the case where the housing position of the control circuit 102a of the control board 102 and the formation position of the through-hole 101c coincide in the vertical and horizontal directions of the housing 101, but is sufficient if it is formed at a location that allows heat generated from the control circuit 102a to be dissipated to the outside of the housing 101.
[0034] Here, it is preferable that the opening area of the through hole 101c is an area that allows heat emitted from the control circuit 102a of the control board 102 to be more efficiently released to the outside via the heat conduction section 103.
[0035] The control board 102 includes a control circuit 102a capable of controlling at least one of the lighting unit 10 and the camera unit 110. The control circuit 102a is configured to perform control such as turning the lighting unit 10 on and off, controlling motion detection by the camera unit 110, more preferably controlling human body detection, and even more preferably controlling facial recognition of the detected human body. The control board 102 is housed in the internal space of the housing 101 such that the control circuit 102a faces the inner surface of the housing 101. Specifically, as shown in Figure 4, the control board 102 is housed in the internal space of the housing 101 on the rear and lower side, and the control circuit 102a is configured to face the rear surface of the housing 101.
[0036] In this way, by providing the control board 102 on the rear side of the housing 101 and arranging the control circuit 102a so as to face the rear surface of the housing 101, it is possible to efficiently conduct the heat emitted from the control circuit 102a to the rear side of the housing 101, thereby enhancing the heat dissipation effect of the heat conduction section 103 and the like.
[0037] In the above description, the control board 102 was described as being housed on the rear and lower side of the internal space of the housing 101, but it is not limited to this, and for example, the control board 102 may be housed on the front side of the housing 101 or on the upper side.
[0038] As shown in Figure 6, the heat conduction section 103 is composed of a heat conduction plate 103A and a heat conduction auxiliary material 103B, and is configured to conduct heat generated from the control circuit 102a of the control board 102 to the outside of the housing 101. The heat conduction plate 103A includes a flat plate portion 103a that can make surface contact with the outer surface of the housing 101 and a protrusion 103b that can be inserted into the through hole 101c of the housing 101. Specifically, the heat conduction plate 103A according to this embodiment is composed of a flat plate portion 103a formed in the shape of a long plate in the vertical direction and a protrusion 103b formed at a location corresponding to the through hole 101c of the housing 101, and is detachably attached to the housing 101 by fitting the flat plate portion 103a into a receiving portion 101a formed on the back surface of the housing 101 and inserting the protrusion 103b into the through hole 101c.
[0039] In the above description, the heat conductive plate 103A was described as being detachably attached to the housing 101, but the invention is not limited to this, and for example, the heat conductive plate 103A and the housing 101 may be fixed in a way that prevents them from being detachably attached.
[0040] Furthermore, in this embodiment, the heat conductive plate 103A has a protrusion 103b formed by a part of the flat plate portion 103a protruding forward. That is, in the area of the flat plate portion 103a where the protrusion 103b is formed, a recess corresponding to the protrusion 103b is formed. However, it is not limited to this, and a recess may not be formed in the area corresponding to the protrusion 103b, and the entire back surface of the heat conductive plate 103A may be formed in a flat shape.
[0041] From the viewpoint of enabling more efficient heat dissipation from the control circuit 102a of the control board 102, it is preferable that the protrusion 103b has a length in the front-to-back direction that allows it to come into contact with the heat conduction auxiliary material 103B, which will be described later. The length of the protrusion 103b in the front-to-back direction can be appropriately changed in accordance with the length (thickness) of the heat conduction auxiliary material 103B, which will be described later.
[0042] Here, the heat conductive plate 103A is preferably made of a material with excellent heat dissipation properties, from the viewpoint of dissipating heat generated from the control circuit 102a of the control board 102 housed in the housing 101 to the outside. Such materials can include, for example, aluminum, iron, or copper.
[0043] As shown in Figure 4, the heat conduction aid 103B is provided between the control board 102 and the housing 101, and is formed in the shape of a plate capable of covering at least the control circuit 102a provided on the control board 102. In this way, because the heat conduction aid 103B is configured to cover the control circuit 102a provided on the control board 102, even if the dimensions of the through hole 101c provided in the housing 101 and the protrusion 103b of the heat conduction plate 103A, which is configured to be insertable into the through hole 101c, are smaller than the dimensions of the control circuit 102a, it is possible to stably conduct heat generated from the control circuit 102a to the protrusion 103b via the heat conduction aid 103B.
[0044] Furthermore, it is preferable that the heat conduction aid 103B, when housed in the housing 101, has its front surface in contact with the control circuit 102a of the control board 102 and its back surface in contact with the protrusion 103b of the heat conduction plate 103A. By having the front surface of the heat conduction aid 103B in contact with the control circuit 102a of the control board 102 and its back surface in contact with the protrusion 103b of the heat conduction plate 103A, it is possible to form a series of processes in which the heat conduction aid 103B directly absorbs the heat generated from the control circuit 102a and conducts the heat absorbed by the heat conduction aid 103B to the heat conduction plate 103A, thereby enabling more efficient heat dissipation from the control circuit 102a of the control board 102 to the outside of the housing 101. However, it is not limited to this, and a gap may be formed between the heat conduction aid 103B and the control circuit 102a or between the heat conduction aid 103B and the protrusion 103b.
[0045] Here, it is preferable that the heat conduction aid 103B is made of an insulating material that can absorb heat generated from the control circuit 102a while insulating the current of the control circuit 102a. Furthermore, it is preferable that the heat conduction aid 103B is made of a material with excellent flexibility and pliability, from the viewpoint of improving adhesion to the control circuit 102a and the heat conduction plate 103A and improving the heat dissipation efficiency of the heat generated from the control circuit 102a. Such materials can be, for example, elastomers or silicon.
[0046] In the above description, the heat conduction aid 103B was described as a separate component formed in the shape of a plate capable of covering at least the control circuit 102a provided on the control board 102. However, it is not limited to this, and for example, the same effects as the heat conduction aid 103B can be achieved by filling the internal space of the housing 101 with a material such as silicon.
[0047] Furthermore, it is preferable that the heat conduction auxiliary material 103B has a predetermined length (thickness) in the front-to-back direction, from the viewpoint of ensuring a sufficient insulation distance between it and the inner surface (back surface) of the housing 101 and reliably preventing the current flowing through the control circuit 102a from being discharged to the outside of the housing 101 via the heat conduction plate 103A.
[0048] The heat conduction section 103, having the configuration described above, is configured to dissipate heat to the outside of the housing 101 by having the heat conduction auxiliary material 103B absorb heat generated from the control circuit 102a of the control board 102, and then conducting the heat absorbed by the heat conduction auxiliary material 103B to the heat conduction plate 103A. In the above description, it was explained that the protrusion 103b of the heat conduction plate 103A is inserted into the through hole 101c formed on the back surface of the housing 101, but it is not limited to this, and the heat conduction plate 103A may not have the protrusion 103b, and a protrusion projecting toward the rear is formed at a location corresponding to the through hole 101c of the heat conduction auxiliary material 103B, and the protrusion of the heat conduction auxiliary material 103B may be inserted into the through hole 101c.
[0049] As shown in Figures 3 to 5, the heat sink 104 is a heat dissipation member configured to be attached to the lower part of the housing 101. The heat sink 104 also has multiple fins that protrude radially outward on its front and side surfaces. By having multiple fins in this way, the heat sink 104 can dissipate heat generated from the control circuit 102a of the control board 102 with high heat dissipation efficiency.
[0050] As shown in Figure 3, the spacer member 105 is inserted between the front surface of the housing 101 and the inner circumferential surface of the heat sink 104, thereby enabling the heat sink 104 to be in close contact with the housing 101. In this way, by using the spacer member 105 to bring the housing 101 and the heat sink 104 into close contact, it is possible to improve the heat dissipation efficiency of the heat sink 104, and it is also possible to reduce the possibility of the heat sink 104 falling off the housing 101.
[0051] The connecting portion 106 is configured to connect the housing 101 and the camera unit 110. Preferably, the connecting portion 106 is configured to allow adjustment of the shooting direction of the camera unit 110. Note that various known configurations and structures can be adopted for the connecting portion 106 as long as it is configured to connect at least the housing 101 and the camera unit 110; therefore, a detailed explanation is omitted.
[0052] The camera unit 110 includes a lens 120, an image sensor 130, and an IR cut filter (not shown) positioned between the lens 120 and the image sensor 130. Since various known configurations and structures can be adopted for the camera unit 110, a detailed explanation is omitted.
[0053] The power supply unit 30 is configured to be directly connected to an external power supply. In this embodiment, "directly connectable" means that it is directly connected to low-voltage indoor wiring (not shown) using indoor electrical wires such as so-called F-cables (VVF cables, 600V vinyl-insulated vinyl-sheathed cables) without using wiring connectors such as plugs and outlets.
[0054] The power supply unit 30 has an AC / DC converter (not shown) and is connected to low-voltage indoor wiring, etc. For example, the power supply unit 30 converts (steps down) the 100V or 200V AC from the low-voltage indoor wiring to 12V DC and supplies power to each part of the lighting device 1, such as the camera unit 110 and the control board 102. The power supply unit 30 also supplies power to the lighting unit 10 as 100V or 200V AC.
[0055] [Advantages of the lighting device and camera unit according to this embodiment] As described above, the lighting device 1 according to this embodiment comprises a lighting unit 10 having a light-emitting unit 12, and a camera unit 100 that can be attached to the lighting unit 10. The camera unit 100 includes a camera unit 110 capable of photographing the surroundings, a control board 102 equipped with a control circuit 102a capable of controlling at least one of the lighting unit 10 and the camera unit 110, and a housing 101 housing the control board 102. The control board 102 is provided such that the control circuit 102a faces the inner surface of the housing 101, and the housing 101 is provided with a heat conduction unit 103 on the surface facing the control circuit 102a, and is configured to dissipate heat generated from the control circuit 102a to the outside of the housing 101 via the heat conduction unit 103.
[0056] Furthermore, the lighting device 1 according to this embodiment has the advantage that, by having such a configuration, the heat generated from the control circuit 102a of the control board 102 can be effectively dissipated to the outside of the housing 101 via the heat conduction section 103, thereby effectively preventing thermal damage to the control board 102. This advantage is particularly significant when the processing load on the control circuit 102a is large, such as when performing human body face recognition processing using AI on images captured by the camera section 110, or when the lighting device 1 is installed in an environment where the temperature of the lighting device 1 is likely to rise due to high outdoor temperatures or direct sunlight, such as when the lighting device 1 is installed in an environment where the temperature of the lighting device 1 is likely to rise.
[0057] Furthermore, in the lighting device 1 according to this embodiment, the housing 101 has a through hole 101c on the surface facing the control circuit 102a, and the heat conduction part 103 is configured to be embedded in the through hole 101c. With this configuration, it is possible to directly conduct the heat generated from the control circuit 102a to the heat conduction part 103 through the through hole 101c formed in the housing 101, which has the advantage of being able to more effectively dissipate the heat generated from the control circuit 102a to the outside of the housing 101.
[0058] Furthermore, in the lighting device 1 according to this embodiment, the heat conduction plate 103A of the heat conduction section 103 includes a flat plate portion 103a that can make surface contact with the outer surface of the housing 101 and a protrusion 103b that can be inserted into the through hole 101c. With this configuration, it is possible to effectively conduct heat generated from the control circuit 102a via the protrusion 103b, and by conducting heat from the protrusion 103b to the flat plate portion 103a, it is also possible to increase the contact area with the outside air and further improve the heat dissipation efficiency.
[0059] Furthermore, in the lighting device 1 according to this embodiment, the heat conduction section 103 further includes a heat conduction auxiliary material 103B capable of absorbing heat generated from the control circuit 102a, and the heat conduction auxiliary material 103B is provided between the control board 102 and the inner surface of the housing 101. By having such a configuration, a series of processes are formed in which heat generated from the control circuit 102a of the control board 102 is absorbed by the heat conduction auxiliary material 103B and then conducted from the heat conduction auxiliary material 103B to the heat conduction section 103 of the housing 101, which has the advantage of being able to further improve the heat conduction efficiency.
[0060] Furthermore, in the lighting device 1 according to this embodiment, the heat conduction auxiliary material 103B is made of an insulating material. By having such a configuration, the current flowing through the control board 102 is not discharged to the outside, which has the advantage of ensuring safety when using the lighting device 1.
[0061] Furthermore, in the lighting device 1 according to this embodiment, the camera unit 100 further includes a heat sink 104 that is configured to be attached to the housing 101. This configuration has the advantage of further improving the heat dissipation efficiency of the heat generated from the control circuit 102a of the control board 102.
[0062] Furthermore, in the lighting device 1 according to this embodiment, the camera unit 100 further includes a spacer member 105 configured to be insertable between the housing 101 and the heat sink 104. This configuration has the advantage of allowing the heat sink 104 to be brought into close contact with the housing 101, thereby further improving the heat dissipation efficiency of the heat sink 104.
[0063] [Differentiation] Although preferred embodiments of the present invention have been described above, the technical scope of the present invention is not limited to the embodiments described above. Various modifications or improvements can be made to the embodiments described above.
[0064] For example, in the embodiment described above, the housing 101 has a through hole 101c on the surface (back) facing the control circuit 102a, and the heat conduction part 103 is described as being embedded in the through hole 101c. However, the invention is not limited to this, and the heat conduction part 103 does not have to be embedded in the through hole 101c of the housing 101. Furthermore, the housing 101 does not have to have a through hole 101c.
[0065] Furthermore, in the embodiments described above, the heat conduction plate 103A of the heat conduction section 103 was described as having a flat plate portion 103a that can make surface contact with the outer surface of the housing 101 and a protrusion 103b that can be inserted into the through hole 101c. However, the invention is not limited to this, and the heat conduction section 103 does not necessarily have to have a flat plate portion 103a and a protrusion 103b.
[0066] Furthermore, although the above-described embodiment explained that the heat conduction section 103 further includes a heat conduction auxiliary material 103B capable of absorbing heat generated from the control circuit 102a, the invention is not limited to this, and the camera unit 100 does not necessarily have to include the heat conduction auxiliary material 103B.
[0067] Furthermore, although the above-described embodiment explained that the camera unit 100 further includes a heat sink 104 configured to be attachable to the housing 101, the invention is not limited to this, and the camera unit 100 does not necessarily have to include a heat sink 104. For example, the housing 101 may be made of a material with good heat dissipation efficiency as a whole, thereby utilizing the housing 101 as a heat sink, or the lighting unit 10, in particular the unit storage unit 18, may be made of a material with good heat dissipation efficiency as a whole, thereby configuring it to dissipate heat generated from the camera unit 100 (especially the control circuit 102a).
[0068] Furthermore, although the above-described embodiment explained that the camera unit 100 further includes a spacer member 105 configured to be insertable between the housing 101 and the heat sink 104, it is not limited to this, and the spacer member 105 is not required. In this case, for example, a configuration may be adopted in which the housing 101 and the heat sink 104 are brought into close contact with each other by making a part of the housing 101 protrude outward, or a configuration may be adopted in which thermal grease or the like is filled between the housing 101 and the heat sink 104 to bring them into close contact.
[0069] Furthermore, although the above-described embodiment assumed that the camera unit 100 is detachably configured to be attached to the illumination unit 10, the invention is not limited to this, and the camera unit 100 and the illumination unit 10 may be fixed in a way that prevents them from being detached.
[0070] It is clear from the claims that the above-mentioned modifications are included within the scope of the present invention. [Explanation of symbols]
[0071] 1: Lighting device 10: Lighting Department 12: Light-emitting part 14: Cabinet 16: Nozzle 18: Unit storage section 30: Power supply section 100: Camera Unit 101: Housing 101a: Receptor part 101b: Outer shell 101c: Through hole 102: Control board 102a: Control circuit 103: Heat conduction section 103A: Thermal conductive plate 103a: Flat plate part 103b: Convex part 103B: Heat conduction aid 104: Heat sink 105: Spacer member 106: Connection part 110: Camera Department 120: Lens 130: Image sensor
Claims
1. A lighting unit having a light-emitting part, A camera unit that can be attached to the aforementioned lighting unit and Equipped with, The aforementioned camera unit is A camera unit capable of capturing the surroundings, A control board comprising a control circuit capable of controlling at least one of the illumination unit and the camera unit, A housing that houses the control board and Includes, The control board is provided such that the control circuit faces the inner surface of the housing. The housing is equipped with a heat conduction section on the surface facing the control circuit, and is configured to dissipate heat generated from the control circuit to the outside of the housing via the heat conduction section. A lighting device characterized by the following features.
2. The housing has a through hole on the surface facing the control circuit, The heat conduction part is embedded in the through hole. The lighting device according to feature 1.
3. The heat conduction portion comprises a flat plate portion that can make surface contact with the outer surface of the housing and a protruding portion that can be inserted into the through hole. The lighting device according to feature 2.
4. The heat conduction section further comprises a heat conduction auxiliary material capable of absorbing heat generated from the control circuit, The heat conduction aid is provided between the control circuit and the inner surface of the housing. The lighting device according to claim 1 or 2.
5. The aforementioned heat conduction aid is formed of an insulating material. The lighting device according to feature 4.
6. The camera unit further comprises a heat sink configured to be attachable to the housing. The lighting device according to claim 1 or 2.
7. The camera unit further comprises a spacer member configured to be insertable between the housing and the heat sink. The lighting device according to feature 6.
8. A camera unit that can be attached to a lighting device having a lighting section, A camera unit capable of capturing the surroundings, A control board comprising a control circuit capable of controlling at least one of the illumination unit and the camera unit, A housing that houses the control board and Includes, The control board is provided such that the control circuit faces the inner surface of the housing. The housing is provided with a heat conduction section on the surface facing the control circuit, and is configured to release heat generated from the control circuit to the outside of the housing through the heat conduction section. A camera unit characterized by the following features.
9. The lighting unit is configured to be detachably attached to the aforementioned lighting unit. The camera unit according to feature 8.
Citation Information
Patent Citations
Outdoor lighting apparatus with security camera
JP2020140945A