JP6389097B2 - Outdoor communication device - Google Patents

Description

  The present application relates to a communication device installed outdoors.

  For example, as disclosed in Patent Document 1, a communication device (field device) installed outdoors is known. In this communication device, a communication mechanism such as a circuit board for communication and a battery (charger) for driving the circuit board is accommodated in a casing which is a sealed container. In the communication device, for example, a detection signal from a sensor or the like is processed by a circuit board, and the processed signal is transmitted to an external device.

JP 2009-133755 A

  By the way, in the outdoor communication device as described above, the casing and the inside thereof are heated by direct sunlight, and there is a risk of causing a failure of the communication mechanism which is an electrical component. Therefore, in outdoor communication devices, measures are taken to cover the casing with a light shielding cap (light shielding cover) at intervals in order to block sunlight. However, there is a problem in that the high temperature of the casing cannot be sufficiently suppressed only by providing the light shielding cap. In particular, the problem becomes prominent when it is installed in a place where the average temperature is high or in a place where the sunshine time is long.

  The present application has been made in view of such circumstances, and an object thereof is to provide an outdoor communication device capable of sufficiently suppressing the temperature increase of the casing.

  The present application has a casing having a cylindrical body portion extending in the vertical direction, an upper wall portion and a bottom wall portion closing both ends of the body portion, and a circuit board for communication, and is accommodated in the casing. It is premised on an outdoor communication device that includes a communication mechanism and a sunlight shielding cap that covers the casing from above and is provided at a distance from the casing. The outdoor communication device according to the present application is provided between the casing body and the light shielding cap, extends in the vertical direction, has a lower end positioned below the light shielding cap, and directs the wind upward from below. And a first guide for guiding the light into the light shielding cap. Furthermore, a ventilation hole through which the wind guided by the first guide portion flows is formed in the upper wall portion of the light shielding cap. The sunlight blocking cap means a cap that blocks sunlight.

  According to the outdoor communication device of the present application, since the light shielding cap is provided, it is possible to prevent direct sunlight from hitting the casing, and since the casing and the light shielding cap are provided at an interval, they are heated by direct sunlight. It is possible to prevent heat from being transmitted from the light shielding cap to the casing. Further, according to the outdoor communication device of the present application, the wind flowing on the side of the casing hits a lower part than the light shielding cap in the first guide portion, flows upward along the first guide portion, and enters the light shielding cap. Inflow. The wind that has flowed into the light shielding cap flows to the upper wall portion of the casing and flows out from the ventilation hole. In this way, in the outdoor communication device of the present application, the body portion and the upper wall portion of the casing can be ventilated in this order in the light shielding cap. The casing can be cooled by this ventilation action. That is, the casing can be cooled by ventilation. Due to the above-described action by the light shielding cap and the action by the first guide portion, the temperature rise of the casing can be sufficiently suppressed.

FIG. 1 is a front view illustrating a schematic configuration of the sensor device according to the first embodiment. FIG. 2 is a top view illustrating a schematic configuration of the outdoor communication device according to the first embodiment with a light shielding cap omitted. FIG. 3 is a front view illustrating a schematic configuration of the outdoor communication device according to the first embodiment with a light shielding cap omitted. FIG. 4 is a side view illustrating a schematic configuration of the outdoor communication device according to the first embodiment with a light shielding cap omitted. FIG. 5 is a perspective view illustrating a schematic configuration of the outdoor communication device according to the first embodiment with a light shielding cap omitted. FIG. 6 is a front view illustrating a schematic configuration of the outdoor communication device according to the second embodiment with a light shielding cap omitted.

  Hereinafter, embodiments of the present application will be described with reference to the drawings. The following embodiments are essentially preferable examples, and are not intended to limit the scope of the present application, its application, or its use.

(Embodiment 1)
Embodiment 1 of the present application will be described with reference to FIGS. A sensor device 1 of the present embodiment shown in FIG. 1 is provided with an outdoor communication device (hereinafter simply referred to as a communication device 4) according to the present application. The sensor device 1 is a so-called fixed type sensor that is fixed to a measurement object (for example, a steam trap) installed outdoors and detects temperature and vibration of the measurement object. The sensor device 1 is fixed to the measurement object in a state extending in the vertical direction.

  The sensor device 1 includes a sensor body 2, a connection shaft 3, and the communication device 4 described above. The connection shaft 3 is a hollow shaft, and both ends are connected to the sensor body 2 and the communication device 4 by nuts 5 and 6. In the sensor device 1, a signal related to the temperature of the measurement object detected by the sensor body 2 is sent to the communication device 4.

  The communication device 4 is a wireless communication device that processes a signal transmitted from the sensor body 2 and transmits the signal to an external device. As shown in FIGS. 2 to 4, the communication device 4 includes a casing 10, an antenna 23, a communication mechanism 30, and a light shielding cap 40.

  The casing 10 has a trunk portion 11, an upper wall portion 12, and a bottom wall portion 13. The trunk | drum 11 is formed in the cylindrical shape extended in an up-down direction. The upper wall portion 12 and the bottom wall portion 13 are provided at both ends (upper and lower ends) of the body portion 11 and close the both ends. That is, the casing 10 is a substantially cylindrical closed container. The upper wall portion 12 is formed in a flat bowl shape. A connecting portion 17 to which the connecting shaft 3 is connected is provided on the lower surface of the bottom wall portion 13.

  A connection port 21 is provided in the body portion 11 of the casing 10. The connection port 21 is located near the upper portion of the trunk portion 11 and is formed so as to protrude from the trunk portion 11. The antenna 23 is formed in a substantially rod shape, and is attached to the connection port 21 via the connection tube 22. The connection tube 22 is formed in an L shape and is connected to the connection port 21 so as to be freely rotatable. That is, the angle of the antenna 23 can be changed by rotating the connecting tube 22. In addition, the body portion 11 of the casing 10 is provided with an external connection port 25 at the lower portion. The external connection port 25 is formed so as to protrude from the body 11 and is connected to an external device via an electric wire. Note that the connection port 21 and the external connection port 25 are provided at positions that are shifted by approximately 90 degrees in the circumferential direction of the body portion 11.

  The communication mechanism 30 is accommodated in the casing 10 as shown in FIG. The communication mechanism 30 includes a communication circuit board 31 that processes a signal sent from the sensor main body 2, and a battery 32 that is a drive source of the circuit board 31. The signal processed by the circuit board 31 is wirelessly transmitted by the antenna 23.

  The light shielding cap 40 is provided outside the casing 10 to block sunlight. Specifically, the light shielding cap 40 includes a cylindrical body portion 41 and an upper wall portion 42 that closes the upper end of the body portion 41. The upper wall portion 42 is formed in a flat bowl shape. The light shielding cap 40 covers the casing 10 from above and is provided at a distance from the casing 10. The light shielding cap 40 is attached by fixing the center of the upper wall portion 42 to the attachment portion 15 of the casing 10 with a bolt 16. The attachment portion 15 is formed to protrude from the center of the upper wall portion 12 of the casing 10 and has a screw hole. The light shielding cap 40 covers substantially the upper half of the casing 10, that is, the entire upper wall portion 12 and the substantially upper half of the body portion 11. A notch 44 is formed in the body 41 of the light shielding cap 40 at a portion corresponding to the connection port 21.

  The communication device 4 is provided with a ventilation mechanism that allows ventilation through the light shielding cap 40. The ventilation mechanism of the present embodiment includes trunk side guide portions 51, 52, 53, upper wall side guide portions 55, 56, 57, 58, and ventilation holes 43.

  The trunk side guide parts 51, 52, 53 guide the wind (outside wind) flowing to the side of the casing 10 from the lower side to the upper side into the light shielding cap 40, and constitute the first guide part according to the present application. doing. The trunk side guide portions 51, 52, and 53 are linear plate members that are provided between the trunk portion 11 of the casing 10 and the light shielding cap 40 and extend in the vertical direction. More specifically, the trunk side guide portions 51, 52, 53 extend perpendicular to the horizontal direction. In this embodiment, the trunk | drum side guide parts 51, 52, and 53 are provided in three places in the circumferential direction of the casing 10 (refer FIG. 3). Specifically, the trunk side guide portion 51 is disposed at a position shifted by 90 degrees from the connection port 21, the trunk side guide portion 52 is disposed at a position facing the connection port 21, and the trunk side guide portion 53 is disposed at the trunk side guide portion. It is arranged at a position facing 51.

  The trunk side guide parts 51, 52, 53 are formed so as to protrude from the outer surface of the trunk part 11 of the casing 10. The trunk side guide parts 51, 52, 53 have upper ends located in the vicinity of the upper end of the trunk part 11 of the casing 10 and lower ends located below the light shielding cap 40. The trunk side guide portions 51, 52, and 53 are in contact with the inner surface of the trunk portion 41 of the light shielding cap 40 at the protruding tips (projecting ends).

  The upper wall side guide portions 55, 56, 57, 58 guide the wind guided into the light shielding cap 40 by the trunk side guide portions 51, 52, 53 to the center of the upper wall portion 12 of the casing 10. The 2nd guide part which concerns on is comprised. The upper wall side guide portions 55, 56, 57, and 58 are plate members that are provided between the upper wall portion 12 of the casing 10 and the light shielding cap 40 and extend from the outer side of the upper wall portion 12 toward the center. . That is, the upper wall side guide portions 55, 56, 57, 58 extend in the radial direction from the center in the upper wall portion 12. In the present embodiment, the upper wall side guide portions 55, 56, 57, and 58 are provided at four locations on the upper wall portion 12 (see FIG. 3). The four upper wall side guide portions 55, 56, 57, and 58 are arranged at equal intervals (90 degree intervals). Further, the upper wall side guide portions 55, 56, 57, 58 and the trunk side guide portions 51, 52, 53 are arranged so as to be shifted from each other by, for example, 45 degrees in the circumferential direction of the casing 10.

  The upper wall side guide portions 55, 56, 57, 58 are formed so as to protrude from the outer surface of the upper wall portion 12 of the casing 10. The upper wall side guide portions 55, 56, 57, 58 have outer ends positioned in the vicinity of the outer edge of the upper wall portion 12, and the inner ends are joined to the mounting portion 15. The upper wall side guide portions 55, 56, 57, 58 are in contact with the inner surface of the upper wall portion 42 of the light shielding cap 40 at the protruding tips (projecting ends).

  The ventilation hole 43 is provided in the upper wall portion 42 of the light shielding cap 40, and is configured such that the wind guided into the light shielding cap 40 by the trunk side guide portions 51, 52, 53 flows out to the outside. In the present embodiment, four ventilation holes 43 are provided (see FIG. 3). Specifically, the four ventilation holes 43 are provided at substantially the center of the upper wall portion 42 and are provided between the upper wall side guide portions 55, 56, 57, and 58. That is, each ventilation hole 43 is opened in a space partitioned by the upper wall side guide portions 55, 56, 57, 58 between the upper wall portion 12 of the casing 10 and the light shielding cap 40.

  In the communication device 4 of the present embodiment, the wind flows as shown by the arrow A in FIG. The wind that flows to the side of the casing 10 hits the lower part of the trunk side guide portions 51, 52, 53 than the light shielding cap 40, flows upward along the trunk side guide portions 51, 52, 53, and flows into the light shielding cap 40. To do. That is, the wind flowing on the side of the casing 10 is guided into the light shielding cap 40 by hitting the trunk side guide portions 51, 52, 53. The wind that has flowed into the light shielding cap 40 flows to the upper wall portion 12 of the casing 10 along the trunk side guide portions 51, 52, 53 as it is and flows out from the ventilation holes 43. At that time, the wind that has flowed to the upper wall portion 12 is reliably guided to the center of the upper wall portion 12 by the upper wall side guide portions 55, 56, 57, and 58. In this way, the body portion 11 and the upper wall portion 12 of the casing 10 are ventilated in this order in the light shielding cap 40. The casing 10 is cooled by this ventilation action.

  As described above, according to the communication device 4 of the first embodiment, since the light shielding cap 40 is provided, it is possible to prevent direct sunlight from hitting the casing 10. Moreover, since the casing 10 and the light shielding cap 40 are provided at an interval, it is possible to suppress heat from being transmitted to the casing 10 from the light shielding cap 40 heated by direct sunlight. Thereby, the high temperature of the casing 10 can be suppressed.

  Further, according to the communication device 4 of the first embodiment, since the trunk side guide portions 51, 52, 53 and the ventilation hole 43 are provided, the wind flowing to the side of the casing 10 is introduced into the light shielding cap 40. The trunk portion 11 and the upper wall portion 12 of the casing 10 can be ventilated in this order. Thereby, the casing 10 can be cooled (ventilation cooling). Therefore, in the communication device 4 according to the first embodiment, the temperature increase of the casing 10 can be sufficiently suppressed.

  Further, in the communication device 4 according to the first embodiment, the upper wall side guide portions 55, 56, 57, and 58 are provided, so that the wind that has flowed to the upper wall portion 12 by the trunk side guide portions 51, 52, and 53 is surely obtained. To the center of the upper wall portion 12. Therefore, the wind that has flowed into the light shielding cap 40 can be reliably discharged from the ventilation hole 43. That is, the ventilation path from the lower end of the light shielding cap 40 to the ventilation hole 43 can be reliably formed. Thereby, the casing 10 can be cooled effectively.

  Further, in the communication device 4 of the first embodiment, the trunk side guide portions 51, 52, 53 and the upper wall side guide portions 55, 56, 57, 58 are formed to protrude from the outer surface of the casing 10. Therefore, the trunk portion 11 of the casing 10 can be reinforced by the trunk side guide portions 51, 52, and 53, and the upper wall portion 12 of the casing 10 can be reinforced by the upper wall side guide portions 55, 56, 57, and 58. it can. That is, the trunk side guide portions 51, 52, 53 and the upper wall side guide portions 55, 56, 57, 58 can also be used as reinforcing members.

  Further, in the communication device 4 of the first embodiment, the tips (projecting ends) of the trunk side guide portions 51, 52, 53 and the upper wall side guide portions 55, 56, 57, 58 are in contact with the inner surface of the light shielding cap 40. did. Thereby, the trunk | drum 41 and the upper wall part 42 of the light shielding cap 40 can be supported by the trunk | drum side guide part 51,52,53 and the upper wall side guide part 55,56,57,58. Therefore, the rigidity of the light shielding cap 40 can be increased.

(Embodiment 2)
Embodiment 2 of the present application will be described with reference to FIG. In this embodiment, the configuration of the trunk side guide portion is changed in the communication device 4 of the first embodiment. Here, the changes will be described. It should be noted that the body side guide portions 61 and 62 of the present embodiment are also provided at three locations on the body portion 11 of the casing 10 as in the first embodiment. Here, the trunk side guide portion 61 will be described as a representative.

  The trunk side guide portion 61 of the present embodiment is a plate member that extends in the vertical direction as in the first embodiment. The trunk side guide portion 61 has a lower end 61a that is bifurcated and bent in a circular arc shape to opposite sides (left and right in FIG. 6). In this way, by bending the lower end 61a of the trunk side guide portion 61 into an arc shape, the wind flowing on the side of the casing 10 can be smoothly guided into the light shielding cap 40 (see arrow B shown in FIG. 6). . Other operations and effects are the same as those of the first embodiment.

(Other embodiments)
In the above embodiment, the numbers of the trunk side guide portions 51, 52, 53, 61, 62, the upper wall side guide portions 55, 56, 57, 58, and the ventilation holes 43 are not limited to the above-described numbers, but one It may be more than the quantity mentioned above.

  In the above embodiment, the front end (protruding end) of the trunk side guide portions 51, 52, 53, 61, 62 and the upper wall side guide portions 55, 56, 57, 58 are in contact with the inner surface of the light shielding cap 40. In the present application, a gap may be provided between the tips of the guide portions and the inner surface of the light shielding cap 40.

  In the first embodiment, the trunk side guide portions 51, 52, 53 are formed in a straight line extending perpendicularly to the horizontal direction, but are formed in a straight line or curved line extending obliquely with respect to the horizontal direction. Also good.

  In the above embodiment, the upper wall side guide portions 55, 56, 57, and 58 may be omitted.

  In the above embodiment, the wireless communication device 4 has been described. However, the present application can achieve the same operational effects even with a wired communication device.

  The present application is useful for a communication device installed outdoors.

4 outdoor communication device 10 casing 11 trunk 12 upper wall 13 bottom wall 30 communication mechanism 31 circuit board 40 light shielding cap 42 upper wall 43 vent holes 51, 52, 53 trunk side guide (first guide)
55, 56, 57, 58 Upper wall side guide portion (second guide portion)
61, 62 trunk side guide portion (first guide portion)
61a Bottom

Claims (5)

A casing having a cylindrical body portion extending in the vertical direction, and an upper wall portion and a bottom wall portion that close both ends of the body portion;
A communication mechanism having a circuit board for communication and housed in the casing;
An outdoor communication device that covers the casing from above and includes a sunlight shading cap provided at an interval from the casing,
It is provided between the body of the casing and the light shielding cap, extends in the vertical direction, has a lower end positioned below the light shielding cap, and applies wind to a lower part of the light shielding cap to face upward from below. A first guide portion for guiding the light into the light shielding cap,
An outdoor communication device, wherein an air vent hole through which the wind guided by the first guide portion flows is formed in the upper wall portion of the light shielding cap. The outdoor communication device according to claim 1,
An airflow is provided between the upper wall portion of the casing and the light shielding cap, extends from the outer side of the upper wall portion of the casing toward the center, and guides the wind guided by the first guide portion. A second guide portion that leads to the center of the wall portion;
The outdoor communication device, wherein the ventilation hole is formed at a center of an upper wall portion of the light shielding cap. The outdoor communication device according to claim 1 or 2,
The outdoor communication device according to claim 1, wherein the first guide portion has a lower end divided into two forks and is bent in an arc shape to opposite sides. The outdoor communication device according to any one of claims 1 to 3,
The outdoor communication device, wherein the guide portion is formed to protrude from an outer surface of the casing. The outdoor communication device according to claim 4,
An outdoor communication device characterized in that a tip of the guide portion is in contact with an inner surface of the light shielding cap.

Images