Electrical equipment

Abstract

To provide electrical equipment that can be suppressed from rising suddenly in manufacturing cost although a substrate is installed in a main body case in an inclined attitude.SOLUTION: A substrate fitting rib 33 capable of abutting on the front of an IR substrate 30 in a backward leaning posture is protruded backward on the back of a front case 11, a cover 23 for lighting installed adjacently above the IR substrate 30 is provided with press claws 26, 26 tips of which abut on the back of the IR substrate 30, so that the IR substrate 30 in the backward leaning posture is held from before and behind with the substrate fitting rib 33 and press claws 26, 26. Therefore, although the IR substrate 30 is installed in the backward leaning posture, the IR substrate 30 which is not screwed can be restricted from moving forward and backward, thereby suppressing a sudden rise in manufacturing cost.SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] The present invention relates to an electrical device having a circuit board disposed in a main body case. [Background technology]

[0002] In a conventional intercom device, which is an example of an electrical device, when a predetermined component is installed inside the main body case, the component is sometimes installed in an inclined position, inclined in a predetermined direction relative to the front surface of the main body case. For example, in the intercom device described in Patent Document 1, the speaker is installed in an inclined position relative to the front surface of the main body case. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-155965 Summary of the Invention [Problem to be solved by the invention]

[0004] As described above, if the component to be installed in an inclined position is a circuit board that needs to be screwed to the main body case, the screw holes must be drilled in the inclined direction, which creates the problem of increasing the cost of the mold and ultimately the manufacturing cost of the electrical equipment.

[0005] Therefore, the present invention has been made in consideration of the above problems, and aims to provide an electrical device that can suppress increases in manufacturing costs even when the circuit board is installed in an inclined position inside the main body case. [Means for solving the problem]

[0006] In order to achieve the above object, the invention described in claim 1 of the present invention is an electrical device in which a substrate is installed inside a main body case and the substrate is inclined in a predetermined direction relative to the surface of the main body case, characterized in that a substrate mounting portion that abuts against the surface of the substrate is provided inside the main body case, and a pressing portion that abuts against the back surface of the substrate is provided on a predetermined member installed adjacent to the substrate, and the substrate in an inclined position is clamped from the front and back by the substrate mounting portion and the pressing portion. According to the invention described in claim 1, the substrate in an inclined position is clamped from the front and back by the substrate mounting portion and the holding portion, so even though the substrate is installed in an inclined position, it is possible to restrict movement of the substrate in the front and back directions without using screws, thereby preventing manufacturing costs from rising.

[0007] The invention described in claim 2 is characterized in that, in the invention described in claim 1, a camera unit that captures images of the surroundings, a lighting unit that illuminates the surroundings, and an infrared irradiation unit that emits infrared rays in connection with imaging by the camera unit are provided on the front of the main body case, the board is an infrared LED board that has an infrared LED mounted on the front and constitutes the infrared irradiation unit, and is inclined forward or backward relative to the front of the main body case, and the member on which the pressing part is provided is a cover member made of synthetic resin with light-diffusing properties, and is arranged to cover the front of the lighting board that constitutes the lighting unit. According to the invention of claim 2, since the infrared LED board is installed in an inclined position, the infrared LED board can be moved closer to the front of the main body case, which allows, for example, the opening for exposing the infrared LED to be narrowed, thereby contributing to the miniaturization of the electrical device. Also, by inclining the infrared LED board, it is easy to make the direction of the lens in the camera unit different from the direction of infrared radiation, which makes it easy to prevent situations such as the image captured by the camera unit being too bright. Furthermore, since a pressing portion is provided on the cover member that constitutes the lighting unit, it is possible to rationalize the structure, such as by reducing the number of parts. [Effects of the Invention]

[0008] According to the present invention, a board mounting portion that contacts the front surface of the board is provided inside the main body case. Furthermore, a predetermined member installed adjacent to the board is provided with a retainer portion that contacts the back surface of the board. The board, which is in an inclined position, is then clamped from the front and back by the board mounting portion and the retainer portion. Therefore, even though the board is installed in an inclined position, it is possible to restrict movement of the board in the front-to-back direction without using screws, thereby suppressing increases in manufacturing costs. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective explanatory view showing the appearance of a surveillance camera. [Figure 2] FIG. 2 is an explanatory diagram showing the camera device from the front side. [Figure 3] 10 is an explanatory diagram showing the front case from the rear side in which the illumination board and the infrared LED board are installed. FIG. [Figure 4] 4 is an explanatory diagram showing the front case from the rear side in a state where the illumination board is removed from FIG. 3. FIG. [Figure 5] 10 is an explanatory perspective view showing the front case, the lighting cover, the lighting board, and the infrared LED board in an exploded state, as viewed from the front side. FIG. [Figure 6] 10 is an explanatory perspective view showing the front case, the lighting cover, the lighting board, and the infrared LED board in an exploded state from the rear side. FIG. [Figure 7] 10 is an explanatory diagram showing a vertical cross section of the front case at the center in the left-right direction. FIG. [Figure 8] 3 is an explanatory diagram showing an enlarged view of a main part in a cross section taken along line AA in FIG. 2. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0010] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A waterproof structure for a body case of a camera device according to an embodiment of the present invention will now be described in detail with reference to the drawings.

[0011] FIG. 1 is a perspective view showing the exterior of the surveillance camera 1. FIG. 2 is a front view of the camera device 2. FIG. 3 is a rear view of the front case 11 with the lighting board 20 and infrared LED board 30 installed. FIG. 4 is a rear view of the front case 11 with the lighting board 20 removed from FIG. 3. FIG. 5 is a front perspective view of the front case 11, lighting cover 23, lighting board 20, and infrared LED board 30 disassembled. FIG. 6 is a rear perspective view of the front case 11, lighting cover 23, lighting board 20, and infrared LED board 30 disassembled. FIG. 7 is a vertical cross-section of the front case 11 at the center in the left-right direction. FIG. 8 is an enlarged view of the main parts of the cross-section taken along line AA in FIG. 2.

[0012] The surveillance camera 1 comprises a camera device 2 having a camera unit 4 that captures images of the surroundings and a microphone unit 5, etc., and a communication device 3 for transmitting and receiving images captured by the camera unit 4 to and from other devices. The communication device 3 is connected to the rear of the camera device 2 via an angle adjustment mechanism 6. The attitude of the camera device 2 relative to the communication device 3 can be adjusted by rotating the angle adjustment mechanism 6 around an axis in the vertical direction and an axis in the horizontal direction. Such a surveillance camera 1 is used by installing the rear surface of the communication device 3 on an installation surface such as a wall.

[0013] Here, the installation structure of the infrared LED board (hereinafter referred to as the IR board) 30 in the main body case 10 of the camera device 2, which is the main part of the present invention, will be described. The camera device 2 includes a main body case 10 formed by assembling a front case 11 and a rear case 21, and a decorative panel 13 attached to the front of the main body case 10. The main body case 10 also includes a camera (not shown), a microphone (not shown), an illumination board 20 having white LEDs 21 mounted on the front surface thereof, an IR board 30 having infrared LEDs 31 mounted on the front surface thereof, and a control board 14 for controlling their operation. The camera unit 4 is provided at the top of the front surface of the main body case 10, and an illumination unit 7 for illuminating the area around the camera device 2 is provided approximately in the center of the front surface of the main body case 10. An infrared irradiation unit 8 is provided adjacent to the lower side of the illumination unit 7 on the front surface of the main body case 10, enabling the camera unit 4 to capture images even when the illumination unit 7 is not illuminating the area. The microphone unit 5 is provided at the bottom of the front surface of the main body case 10.

[0014] The front case 11 is formed in a box shape that opens to the rear, and has a front plate 15 that is a generally rectangular plate when viewed from the front, and outer peripheral walls that extend rearward along the top, bottom, left, and right edges of the front plate 15. An illumination opening 22 is formed approximately in the center of the front plate 15, and screw-fastening bosses 16, 16·· for screwing an illumination board 20 are provided around the illumination opening 22 on the rear surface of the front plate 15. An illumination cover 23 is attached using the illumination opening 22, and the illumination board 20 is screwed to the rear side of the illumination cover 23 with the white LEDs 21, 21·· positioned within the illumination opening 22, thereby forming the illumination unit 7.

[0015] The lighting cover 23 is a member made of synthetic resin with light diffusing properties, and has a cover main body 24 that bulges forward and can be fitted into the lighting opening 22, and flanges 25 that protrude outward in all directions from the base end of the cover main body 24. In addition, the downward protruding part of the flange 25 is provided with holding claws 26, 26 that have claws bent downward at the tips of legs that protrude further rearward.

[0016] An irradiation opening 32 for exposing the infrared LEDs 31, 31... is provided below the illumination opening 22 in the front panel 15. Furthermore, a board mounting rib 33 for mounting the IR board 30 protrudes rearward around the illumination opening 22 on the rear surface of the front panel 15. The IR board 30 is mounted using the board mounting rib 33, and the infrared LEDs 31, 31... are exposed inside the irradiation opening 32, thereby forming the infrared irradiation unit 8.

[0017] The board mounting rib 33 extends annularly along the edge of the illumination opening 22, and the mounting posture of the IR board 30 can be positioned by abutting the leading end (rear end) of the board mounting rib 33 against the front surface of the IR board 30. The portion of the board mounting rib 33 above the illumination opening 22 protrudes higher from the rear surface of the front panel 15 than the portion below the illumination opening 22. Furthermore, the portions of the board mounting rib 33 on both sides of the illumination opening 22 are formed so that their protrusion height gradually decreases from top to bottom, as shown in FIG. 7 . That is, the rear end of the board mounting rib 33 at these portions is formed in an inclined shape that slopes downward and forward. Furthermore, the upper ends of the board mounting rib 33 on both sides of the illumination opening 22 protrude further rearward than the portions of the board mounting rib 33 above the illumination opening 22. These protruding portions are located on the left and right outer sides of the IR board 30 and function as restriction walls 35 that restrict left-right movement of the IR board 30. In addition, below the board mounting rib 33, there are provided holding steps 34, 34 that protrude further rearward than the board mounting rib 33 and restrict downward movement of the IR board 30. Therefore, when attaching the IR board 30, by abutting the front surface of the IR board 30 against the rear end of the board mounting rib 33, the IR board 30 assumes a rearward tilted position relative to the front panel 15 and is held in this rearward tilted position on the holding steps 34, 34.

[0018] Next, the installation of the IR board 30 in the front case 11, and ultimately in the main case 10, will be described. First, the front case 11 is positioned so that the front plate 15 faces downward, and the IR board 30 is placed on the board mounting rib 33. Then, between the left and right restricting walls 35, 35, the tip of the board mounting rib 33 abuts against the surface of the IR board 30, causing the IR board 30 to assume the inclined posture. In this state, the infrared LEDs 32, 32... are exposed within the irradiation opening 32. Next, the cover body 24 is fitted into the illumination opening 22 from inside the front case 11 to attach the illumination cover 23. Then, the flange 25 abuts against the inner surface of the front plate 15, and the illumination cover 23 is positioned adjacent to the upper side of the IR board 30. As shown in FIG. 8 , the tips of the retaining claws 26, 26 of the illumination cover 23 abut against the back surface of the IR board 30. Furthermore, the lighting board 20 is screwed into the screw bosses 16, 16.... Then, the surface of the lighting board 20 comes into contact with the flange 25 of the lighting cover 23, and the lighting cover 23 is sandwiched from the front and back between the front plate 15 and the lighting board 20. Then, the front case 11 and the rear case 12 are integrated, and the installation of the IR board 30 is completed.

[0019] The IR board 30 installed as described above is sandwiched from the front and rear by the lighting cover 23 held between the front panel 15 and the lighting board 20, and is therefore sandwiched from the front and rear by the tips of the board mounting ribs 33 and the pressing claws 26, 26, restricting movement in the front-to-rear direction. In addition, movement in the left-to-right direction is restricted by the restricting walls 35, 35, downward movement by the holding steps 34, 34, and upward movement by the undersides of the legs of the pressing claws 26, 26.

[0020] According to the installation structure for the IR board 30 in the camera device 2 having the above-described configuration, the rear surface of the front case 11 is provided with a board mounting rib 33 that protrudes rearward and can abut against the front surface of the IR board 30 when the board is tilted backward. Meanwhile, the lighting cover 23, which is installed adjacent to the upper side of the IR board 30, is provided with pressing claws 26, 26 whose tips abut against the rear surface of the IR board 30, so that the IR board 30 in the backward tilted position is clamped from the front and rear by the board mounting rib 33 and the pressing claws 26, 26. Therefore, even when the IR board 30 is installed in a backward tilted position, it is possible to restrict forward and rearward movement of the IR board 30 without using screws, thereby suppressing increases in manufacturing costs. Furthermore, since the pressing claws 26, 26 are provided on the lighting cover 23 that constitutes the lighting unit 7, the structure can be streamlined, for example by reducing the number of parts.

[0021] In addition, the IR board 30, which has infrared LEDs 31, 31... mounted on its front surface and constitutes the infrared irradiation unit 8, is tilted backward relative to the front panel 15 of the front case 11. Therefore, the IR board 30 can be moved closer to the front panel 15 of the front case 11, which makes it possible to narrow the irradiation opening 32 for exposing the infrared LEDs 31, 31..., thereby reducing the size of the camera device 2. Furthermore, by tilting the IR board 30, it is easy to make the direction of the lens in the camera unit 4 different from the direction of irradiation of infrared rays from the infrared LEDs 31, 31..., which makes it easy to prevent situations such as the image captured by the camera unit 4 becoming too bright due to reflection from the object being captured.

[0022] The electrical equipment of the present invention is not limited to the above-described embodiments, and the overall configuration of the electrical equipment as well as the configuration related to the installation of the board can be appropriately modified as needed within the scope of the present invention.

[0023] For example, in the above embodiment, the IR board is installed in a backward tilted position, but it may be installed in a forward tilted position, or in a tilted position inclined in the left and right directions. Furthermore, in the above embodiment, the IR board is installed in an inclined position, but the present invention can also be suitably adopted as an installation structure for other boards, such as a sensor board with a human presence sensor mounted on the front surface.

[0024] Furthermore, although the above embodiment describes the installation structure of a circuit board in a camera device, the present invention can also be suitably adopted as an installation structure of a circuit board in other electrical equipment such as communication equipment such as an intercom master unit or an outlet device, as long as the circuit board is built in. In the above embodiment, the pressing portion is provided on the lighting cover, but it is possible to provide the pressing portion on other components, such as a camera holder or a case component that holds an LCD display device, and the design can be changed appropriately to determine which component the pressing portion is provided on depending on the type of electrical equipment, etc. [Explanation of symbols]

[0025] 2. Camera device (electrical equipment), 7. Lighting unit, 8. Infrared irradiation unit, 10. Main body case, 11. Front case, 15. Front panel, 20. Lighting board, 22. Lighting opening, 23. Lighting cover (cover member), 25. Flange portion, 26. Pressing claw (pressing portion), 30. IR board (board), 31. Infrared LED, 32. Lighting opening, 33. Board mounting rib (board mounting portion), 34. Holding step portion, 35. Regulating wall.

Claims

1. An electrical device in which a substrate is installed in a main body case, and the substrate is inclined in a predetermined direction relative to a surface of the main body case, a substrate mounting portion that contacts the front surface of the substrate is provided within the main body case, and a pressing portion that contacts the back surface of the substrate is provided on a predetermined member installed adjacent to the substrate, The electrical device is characterized in that the board in the inclined position is sandwiched from the front and back by the board mounting portion and the pressing portion.

2. a camera unit that captures an image of the surroundings, an illumination unit that illuminates the surroundings, and an infrared irradiation unit that emits infrared light for imaging by the camera unit are provided on the front surface of the main body case; The substrate is an infrared LED substrate having an infrared LED mounted on a front surface thereof to constitute the infrared irradiation unit, and is inclined forward or backward with respect to the front surface of the main body case; The electrical device according to claim 1, characterized in that the member on which the pressing portion is provided is a cover member made of a synthetic resin having light-diffusing properties, and is arranged to cover the front of the lighting board that constitutes the lighting portion.

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