JP7093281B2 - Heat stroke index measuring device - Google Patents

Description

The present invention relates to a heat stroke index measuring device used for heat stroke prevention.

As global warming progresses and solar radiation becomes stronger, the problem of heat stroke is becoming more serious. Therefore, as a measure against heat stroke, the Ministry of the Environment's heat stroke prevention information site and the Japan Weather Association's heat stroke information are used to notify the occurrence of heat stroke.
For example, in the heat stroke information by the Japan Meteorological Association, heat stroke nationwide using the thermal index WBGT (Wet Bulb Globe Temperature / index for evaluating heat stress) obtained based on the black globe temperature (radiant heat), humidity and temperature. You can check the degree of danger, detailed information every 3 hours, and forecasts up to one week ahead by city, ward, town, and village.
However, according to the temperature-based heat stroke information installed in these Stevenson screens, for example, there are actually workers, etc. It is difficult to confirm the possibility of heat stroke in the indoor environment of construction sites and manufacturing plants.
Therefore, recently, a heat stroke index measurement display device provided with a dry / wet thermometer, a black bulb thermometer, and a display for displaying a heat stroke index obtained based on the measured values has been provided. Those who are there are able to recognize the indication and prevent the occurrence of heat stroke (Patent Documents 1 and 2).

Japanese Unexamined Patent Publication No. 2014-181973 Japanese Unexamined Patent Publication No. 2016-132835

The wet-bulb globe temperature measuring device (heat stroke index measurement display device) of Patent Document 1 and Patent Document 2 includes a black ball temperature sensor that detects black ball temperature, a temperature sensor that detects temperature, and humidity that detects humidity. Displays the sensor, a calculation unit that calculates the heat index (WBGT: wet-bulb globe temperature) that indicates the likelihood of heat stroke based on these measured values, and the heat index calculated by the calculation unit. It is a portable heat stroke index measurement display device with an integrated display unit.
Further, the wet-bulb globe temperature measuring device of Patent Document 2 is different when, for example, a worker at a construction site such as outdoors attaches the measuring device described in Patent Document 1 to a belt or hangs it from the neck with a string or the like. It is configured to be removable from the helmet of the operator in order to prevent the measuring device from being damaged by contact with the tool and hindering the carrying and work of the tool.
However, in any of the heat stroke index measurement display devices, in order for the worker to confirm the heat index during work, it is necessary to stop the work and visually check the display unit, which lowers the work efficiency. In addition, if the heat stroke index measurement display device is worn on the body, it is easily affected by the temperature of the body.
Furthermore, although the individual worker can see the measurement result of the heat stroke index measurement display device, the manager who supervises the worker cannot access the information, and the manager who prepares the work environment at the site. I can't respond to the information in a timely manner.
Therefore, it was necessary to provide a communication function and install a repeater for communication.

The present invention has been made in view of this viewpoint, and in particular, for measuring and communicating with an accurate wet-bulb globe temperature to a supervisor, for measuring and communicating heat stroke indicators in a wide range of sites. It is an object of the present invention to provide a heat stroke index measuring device (wet-bulb globe temperature measuring device) having an effective structure.
The purpose is to provide a heat stroke index measuring device that can visually notify the workers of the site who are actually working at the construction site or the manufacturing factory. be.

The present inventors have solved the above problems by the following means.
(1) Calculation of a thermal index based on a black ball temperature measuring device 10 having a black ball temperature sensor 19 inside, a temperature / humidity sensor 42, the temperature / humidity sensor 42, and the measured values of the black ball temperature sensor 19. It is a heat stroke index measuring device in which a circuit board 40 including a circuit unit is connected and fixed to a radiation shield 30 provided inside.
The black sphere temperature measuring instrument includes a hemisphere member 11a composed of a hemisphere 11a configured in two parts, a strut 12a having a semicircular cross section and a hemispherical flange 13a, a hemisphere 11b, a strut 12b having a semicircular cross section, and a semicircle. A hemispherical member 11B composed of a circuit board mounting portion 14 extending and hanging from the semicircular flange 13b is fastened together to form a spherical shape.
The radiation shield 30 connects the umbrella-shaped plate connecting member insertion cylinder 35 hanging from the central flat plate portion 32 of the umbrella-shaped plate 31, and the umbrella-shaped plate connecting member 51 is attached to each umbrella-shaped plate connecting member insertion cylinder 35. A heat stroke index measuring device characterized in that a plurality of umbrella-shaped plates 31 are connected and fixed vertically at regular intervals to form a tower shape by inserting and penetrating.
(2) A semicircular hole 16a in the bottom surface of the hemisphere 11a of the hemisphere member 11A of the black ball temperature measuring instrument 10, a through hole 17a in the flange 13a, a semicircle hole 16b in the bottom surface of the hemisphere 11b of the hemisphere member 11B, and a flange 13b. A hole 17b is provided, and the semicircular hole 16a and the semicircular hole 16b form a circular hole penetrating an electric wire connecting the black ball temperature sensor 19 and the circuit board 40 in the previous period, and the umbrella-shaped plate connecting member 51 is formed. The heat stroke index measuring device according to (1), wherein the device is penetrated through the through holes 17a and 17b.
(3) The heat according to (1) or (2), wherein an LED light is provided on at least one of the flange 13a of the hemispherical member 11A of the black globe temperature measuring instrument 10 or the flange 13b of the hemispherical member 11B. Disease index measuring device.
(4) The umbrella-shaped plate 31 constituting the radiation shield 30 is a flat plate portion 32 having a flat upper surface, and the outer peripheral edge portion is inclined outward toward the lower side to form an outer peripheral inclined surface 33. An opening 34 at the center of the flat plate portion 32, an umbrella-shaped plate connecting member insertion cylinder 35 hanging below the flat plate portion 32, and a tip hanging from the flat plate portion 32 in parallel with the umbrella-shaped plate connecting member insertion cylinder 35. The invention according to any one of (1) to (3), wherein a connecting member 36 having a protrusion 36a at a portion and a recess 36b at a rear end portion, and circuit board insertion grooves 37a and 37b are provided. Heat stroke index measuring device.
(5) Any of (1) to (4), wherein the circuit mounting board 40 is provided with a low power wireless module 41, a temperature / humidity sensor 42, a control unit 44, an internal antenna 45, and a power supply 47. The heat stroke index measuring device according to 1.

According to the heat stroke index measuring device of the present invention, the following effects are exhibited.
<1> Calculation of a thermal index based on a black ball temperature measuring instrument 10 having a black ball temperature sensor 19 inside, a temperature / humidity sensor 42, the temperature / humidity sensor 42, and the measured values of the black ball temperature sensor 19. It is a heat stroke index measuring device in which a circuit board 40 including a circuit unit is connected and fixed to a radiation shield 30 provided inside.
The black sphere temperature measuring instrument includes a hemisphere member 11a composed of a hemisphere 11a configured into two parts, a strut 12a having a hemicircular cross section, and a hemispherical flange 13a, a hemisphere 11b, a strut 12b having a semicircular cross section, and a hemicircle. A hemispherical member 11B including a flange 13b and a circuit board mounting portion 14 extending and hanging from the semicircular flange 13b is fastened together to form a spherical shape, and the radiation shield 30 is located at the center of the umbrella-shaped plate 31. By connecting the umbrella-shaped plate connecting member insertion cylinder 35 hanging from the flat plate portion 32 of the above and inserting and penetrating the umbrella-shaped plate connecting member 51 into each umbrella-shaped plate connecting member insertion cylinder 35, a plurality of umbrella-shaped plates 31 Is formed in a tower shape by connecting and fixing at regular intervals up and down, so it can measure the ideal black ball wet ball temperature as a heat stroke index measuring device that is left unattended and installed in various places at the site, and has a built-in communication circuit. It is possible to provide a device that is rugged while still being.
<2> Since the LED light is provided on at least one of the flange 13a of the hemisphere member 11A of the black globe temperature measuring instrument 10 or the flange 13b of the hemisphere member 11B, the LED light is based on the measurement result by the heat stroke index measuring device. By blinking, changing the color, etc., it is possible to visually inform the workers in the field of the status of the heat index, which indicates the susceptibility to heat stroke at the location where the heat stroke index measuring device is installed.
<3> The umbrella-shaped plate 31 constituting the radiation shield 30 is a flat plate portion 32 having a flat upper surface, and the outer peripheral edge portion is inclined outward toward the lower side to form an outer peripheral inclined surface 33. An opening 34 at the center of the flat plate portion 32, an umbrella-shaped plate connecting member insertion cylinder 35 hanging below the flat plate portion 32, and a tip hanging from the flat plate portion 32 in parallel with the umbrella-shaped plate connecting member insertion cylinder 35. A connecting member 36 having a protrusion 36a at a portion and a recess 36b at the rear end, and an umbrella-shaped plate 31 having a required number of umbrella-shaped plates 31 provided with circuit board insertion grooves 37a and 37b. Since the temperature and humidity sensor 42 provided in the radiation shield 30 is protected from direct sunlight and radiant heat from the ground, etc., the temperature and humidity sensor 42 provided in the radiation shield 30 is ventilated in the radiation shield 30 because it is integrally fixed and configured in a tower shape. You can accurately measure the air temperature at that location. Further, the connecting member 36 makes it possible to easily assemble the radiation shield 30 portion by securing a predetermined interval while inserting the circuit board 40.
Further, since the radiation shield 30 is integrally fixed by stacking the umbrella-shaped plates 31 at a required number of predetermined intervals using the umbrella-shaped plate connecting member 51 to form a tower shape, the entire radiation shield has a complicated shape. It is only necessary to manufacture a mold for an umbrella-shaped plate having a simple shape without the need for a mold, and it is possible to inexpensively manufacture a radiation shield 30 having different sizes depending on the scale.
<4> Since the circuit board 40 provided in the radiation shield 30 is provided with the low power wireless module 41, the internal antenna 45, and the power supply 47, it can be moved even when the work area of the worker moves every day at a construction site or the like. And communication is easy. In addition, by wirelessly communicating the measurement results of many points using a large number of heat stroke index measuring devices to a personal computer installed in the office where the work manager is located, the work managers who are not at the work site are scattered in a wide site. It is possible to manage the heat stroke of each worker who is working.

It is a schematic perspective view of the heat stroke index measuring apparatus of this invention. It is a front view of the heat stroke index measuring apparatus of this invention. FIG. 2 is a cross-sectional view taken along the line AA of FIG. 2 in which the internal mechanism is omitted. It is a schematic exploded view of the black bulb temperature measuring instrument which constitutes the heat stroke index measuring apparatus of this invention. It is the component of the radiation shield which constitutes the heat stroke index measuring apparatus of this invention, and the assembly schematic diagram. It is a schematic diagram of the circuit board of the heat stroke index measuring apparatus of this invention. It is a schematic diagram of the bottom plate of the heat stroke index measuring apparatus of this invention.

The embodiment for carrying out the heat stroke index measuring apparatus of this invention will be described with reference to the figure of an Example.
1 is a schematic perspective view of the heat stroke index measuring device of the present invention, FIG. 2 is a front view of the heat stroke index measuring device of the present invention, and FIG. 3 is a sectional view taken along line AA of FIG. 2 in which an internal mechanism is omitted. FIG. 4 is a schematic exploded view of a black ball temperature measuring device constituting the heat stroke index measuring device of the present invention, and FIG. 5 is a schematic exploded view of a radiation shield component constituting the heat stroke index measuring device of the present invention and its assembly. 6 and 6 are schematic views of the circuit board of the heat stroke index measuring device of the present invention, and FIG. 7 is a schematic view of the bottom plate of the heat stroke index measuring device of the present invention.
In FIGS. 1 to 7, reference numeral 1 denotes a heat stroke index measuring device including a black bulb temperature measuring device 10 and a radiation shield 30.

Reference numeral 10 is a hemisphere member 11A composed of a hemisphere 11a configured in two parts, a strut 12a having a semicircular cross section and a hemispherical flange 13a, a hemisphere 11b, a strut 12b having a semicircular cross section, and a semicircular flange 13b. It is a black sphere temperature measuring instrument formed into a sphere by fastening the hemispherical member 11B including the circuit board mounting portion 14 extending and hanging from the circular flange 13b together. Reference numeral 12 is a cylindrical support column formed by combining the support column 12b of the hemispherical member 11A and the support column 12b of the hemispherical member 11B.
Further, on the lower surface of the flange 13b of the hemispherical member 11B, a protrusion 13c that fits into the recess 36b provided in the flat plate portion 32 of the umbrella-shaped plate 31 constituting the radiation shield 30 described later is provided.
The hemispherical member may be made of a copper plate, an aluminum plate, a synthetic resin plate, or the like, but in the present embodiment, plastic is used.
The JIS standard stipulates that the size of the black globe is 25 mm to 150 mm, but in the present embodiment, it is 75 mm in consideration of the accuracy of the black bulb temperature measurement and the size of the device.
Reference numeral 15 is a circuit board mounting hole formed in the circuit board mounting portion 14, 16a is a hemispherical hole formed in the bottom surface of the hemisphere 11a of the hemisphere member 11A, and 16b is provided in the bottom surface of the hemisphere member 11B. The hemispherical hole 17a is a through hole formed in the flange 13a of the hemisphere member 11aA, 17b is a through hole formed in the flange 13b of the hemisphere member 11B, 18 is a substrate, and 19 is the black ball temperature measurement. A temperature sensor for measuring the temperature of the black ball arranged in the center of the vessel 10, 20 is a board mounting member, and 21 is an LED light. The through hole 17a and the through hole 17b are provided to penetrate the umbrella-shaped plate connecting member 51, which will be described later.

The temperature sensor 19 has a hemispherical hole 16a in which a connection cord (not shown) is formed in the bottom surface of the hemisphere 11a of the hemisphere member 11A and a semicircular hole in which a hole is provided in the bottom surface of the hemisphere 11b of the hemisphere member 11B. It is connected to the control unit 44 provided on the circuit board 40 (see FIG. 6) through the circular hole 16 formed by the 16b.
Through the circular hole 16 formed by the semicircular hole 16a formed in the bottom surface of the hemisphere 11a of the hemisphere member 11A and the semicircular hole 16b formed in the bottom surface of the hemisphere 11b of the hemisphere member 11B as described above. By connecting the connection cord to the control unit 44 provided on the circuit board, it is possible to prevent the air in the black sphere and the air in the radiation shield from being mixed. This is because the temperature inside the black globe rises due to sunlight or the like and is different from the temperature at the place where the temperature and humidity inside the radiation shield are measured, so that both airs do not intersect.
In the embodiment of the present invention, the substrate 18 is provided in the hemisphere 11b and the temperature sensor 19 is attached to the substrate 18, but the temperature sensor 19 is limited to this if it can be arranged in the inner center of the black globe temperature measuring instrument 10. It is not something that will be done.
The LED light 21 is connected to a control unit 44 provided on the circuit board 40 by a connection cord (not shown), and the heat stroke index measuring device is operated by blinking, changing color, etc. based on the measurement result. It informs the status of the heat index (WBGT: wet-bulb globe temperature), which indicates the likelihood of heat stroke at the location where the heat stroke index measuring device is installed.
For example, blinking in green at 10-second intervals informs that each temperature / humidity sensor is operating, or blinks in red every 5 seconds to notify the first warning alarm, and when the risk becomes higher, 2 seconds. It is possible to notify the worker at the site of the warning information that can be visually recognized by blinking the LED light or changing the color, such as notifying the warning alarm by blinking every second.

Reference numeral 30 is a radiation shield for eliminating the influence of direct sunlight and reflection from the ground and protecting the temperature / humidity sensor from sunlight (ultraviolet rays). In this embodiment, the umbrella-shaped plate 31 is provided in consideration of breathability. Is integrally fixed using a required number of stacked umbrella-shaped plate connecting members 51 at predetermined intervals, and the umbrellas are stacked.
5 (a) is a plan view of the umbrella-shaped plate 31, FIG. 5 (b) is a front view of the umbrella-shaped plate 31, FIG. 5 (c) is a sectional view taken along the line BB of FIG. 5 (a), and FIG. d) is a cross-sectional view of two umbrella-shaped plates 31 connected and fixed.
The umbrella-shaped plate 31 is a flat plate portion 32 having a flat upper surface, and the outer peripheral edge portion is inclined outward toward the lower side to form an outer peripheral inclined surface 33.
34 is an opening through which the central portion of the flat plate portion 32 of the umbrella-shaped plate 31 is perforated, and 35 is an opening through which the umbrella-shaped plate connecting member 51 for connecting and fixing the umbrella-shaped plate 31 is penetrated by the umbrella-shaped plate connecting member insertion cylinder. It is a through hole for the purpose. Reference numeral 36 is a connecting member provided with a protrusion 36a at the front end and a recess 36b at the rear end, and 37a and 37b are circuit board insertion grooves.
In the present embodiment, the umbrella-shaped plate 31 is made of plastic in consideration of ultraviolet resistance, low thermal conductivity, high reflectivity, and cost, and has a white color to improve reflection, but the present invention is not limited to this. do not have.

In the present embodiment, eight umbrella-shaped plates 31 are integrally fixed by using a stacking umbrella-shaped plate connecting member 51 at predetermined intervals to form an eight-layered tower. The number of shaped plates 31 is selected in consideration of the length of the circuit board 40 provided in the radiation shield 30.
The umbrella-shaped plate connecting member 51 is composed of a bolt 51a and a nut 51b, but is limited to this as long as a plurality of umbrella-shaped plates 31 stacked at predetermined intervals can be integrally fixed. It's not a thing.
Further, as shown in FIG. 5D, the height of the umbrella-shaped plate 31 is such that ventilation in the radiation shield 30 is important when accurately measuring the air temperature or humidity in the target space, so that each umbrella is used. When the shaped plates 31 are laminated and connected, ventilation is possible from each flat plate portion 32 of each umbrella-shaped plate 31 toward the outer peripheral inclined surface 33, and the lower end of the outer peripheral inclined surface 33 is the flat plate of the lower umbrella-shaped plate 31. It is formed to have a predetermined length so as to be at a position lower than the portion 32.
As a result, while protecting the temperature / humidity sensor 42 in the radiation shield 30 from direct sunlight and radiant heat from the ground or the like, the inside of the radiation shield 30 is passed through the peripheral side opening 38 between the upper and lower umbrella-shaped plates 31. Ventilation is provided by the surrounding airflow.
Further, since the umbrella-shaped plates 31 are integrally fixed by the stacking umbrella-shaped plate connecting members 51 at a required number of predetermined intervals to form the radiation shield 30, the circuit board 40 built in the heat stroke index measuring device. The size can be changed according to the scale, and the radiation shield 30 can be manufactured at low cost because it can be manufactured with a mold having a simple shape.

6A and 6B are a flat plate-shaped circuit board, FIG. 6A is a front view of the circuit board, and FIG. 6B is a back view of the circuit board.
Reference numeral 40 denotes a flat plate-shaped circuit board provided in the radiation shield 30, and on the surface of the circuit board 40, a low power wireless module 41 and a temperature / humidity sensor 42 for measuring the temperature of the air in the radiation shield and the relative humidity of the air 42. , A signal cable connector 43, a control unit (semiconductor) 44 including an arithmetic circuit unit, an internal antenna 45, and the like are provided. Reference numeral 46 denotes a groove provided around the temperature / humidity sensor 42, and air is allowed to pass through this groove to improve ventilation. The calculation circuit unit heats up based on the measured values of the temperature / humidity sensor 42 that measures the temperature of the air in the radiation shield and the relative humidity of the air, and the temperature sensor 19 provided inside the black ball temperature measuring device 10. Calculate the index.
Further, a dry battery 47 constituting a power source is provided on the back surface of the circuit board 40. Reference numeral 48 is a mounting hole for mounting the circuit board 40 to the circuit board mounting portion 14 extending and hanging from the semicircular flange 13b of the hemispherical member 11B of the black globe temperature measuring device 10.
In this embodiment, a specific low power wireless module in the 920 MHz band is used as the low power wireless module 41. In this way, since the communication module 41 can operate at a frequency in the 920 MHZ band with a small amount of power, it can operate for one year or more with a power source consisting of several AA batteries.
In addition, since many functions can be mounted on the circuit board 40, the heat stroke index measuring device 1 which is a measuring instrument becomes a communication slave unit, a master unit is installed at the site, and the center is connected to the site office where the manager is located. Since it is equipped with a communication function that enables the operation of a monitoring computer, etc., measurement information is transmitted directly from the master unit at the site to the cloud, and heat stroke occurs with a simple central monitoring device using software on the cloud. Can be managed.

"Bottom plate 60"
Reference numeral 60 is a circular bottom plate that closes the bottom of the radiation shield 30, 61 is a fixing portion for fixing the heat stroke index measuring device 1 to a tripod (not shown) or the like, and 62 is provided on the circuit board 40. A USB connector insertion hole for connecting a USB cable (communication during setting / adjustment, power supply application, not shown) to the external USB cable connection part, 63 is for restarting the heat stroke index measurement device provided on the circuit board 40. 16 is an escape hole for a switch or the like (not shown), 64 is an external antenna mounting portion for mounting an external antenna to increase communication strength, 65 is an umbrella-shaped plate connecting member insertion hole, and 66 is the umbrella-shaped plate 31. It is a concave portion into which the protrusion 36a of the connecting member 36 is fitted.

An example of a process of assembling the heat stroke index measurement display device of the present invention using each of the above components will be described.
[Step 1]
"Assembly of Radiation Shield 30"
(A) Bolts 51a of the umbrella-shaped plate connecting member 51 are inserted into each of the insertion holes 65 of the umbrella-shaped plate connecting member provided in the bottom plate 60 and fixed with nuts 51b, and the umbrella-shaped plate connecting member 51 stands on the bottom plate 60. Set up.
(B) The umbrella-shaped plate 31 is inserted from above the bolt 51a of the umbrella-shaped plate connecting member 51, and the umbrella-shaped plate connecting member insertion cylinder 35 provided on the umbrella-shaped plate 31 is inserted and provided on the umbrella-shaped plate 31. The protrusion 36a at the tip of the connecting member 36 is fitted and fixed in the recess 66 provided in the bottom plate 60.
(C) After that, in the same manner, the remaining umbrella-shaped plate 31 is inserted from above the bolt 51a of the umbrella-shaped plate connecting member 51, and the umbrella-shaped plate connecting member insertion cylinder 35 provided in the umbrella-shaped plate 31 is inserted. The projection 36a of the connecting member 36 provided on the umbrella-shaped plate 31 is fitted and fixed in the recess 36b provided on the flat plate portion 32 of the umbrella-shaped plate 31 located below the projection 36a, and the radiation shield 30 is completed.
[Step 2]
"Assembly of black bulb temperature measuring instrument 10"
(A) From a hemisphere member 11A composed of a hemisphere 11a configured in two parts, a support column 12a having a semicircular cross section and a flange 13a, a support column 12b having a semicircular cross section 12b, a flange 13b, and a circuit board mounting portion 14. The hemispherical member 11B is fastened together with the hemisphere 11a and the hemisphere 11b, the support column 12a and the support column 12b, and the flange 13a and the flange 13c, respectively, to assemble the spherical black ball temperature measuring device 10.
(B) The LED light is attached to at least one of the flange 13a of the hemispherical member 11A of the black globe temperature measuring instrument 10 or the flange 13b of the hemispherical member 11B.
(C) The circuit board 40 is fixed to the circuit board mounting portion 14 of the hemispherical member 11B of the black globe temperature measuring device 10 with bolts, nuts, or the like.
[Step 3]
"Assemble the heat stroke index measurement display device"
In the next step, the black bulb temperature measuring device 10 assembled as described above is attached to the uppermost portion of the radiation shield 30 to assemble the heat stroke index measurement display device.
(A) A flat plate-shaped circuit board 40 fixed to a circuit board mounting portion 14 of the hemispherical member 11B of the black ball temperature measuring instrument 10, and an umbrella-shaped plate 31 of the radiation shield 30 on the left and right sides of the circuit board 40. It is inserted into the circuit board insertion grooves 37a and 37b provided in the flat plate portion 32 of the above, and is inserted through the opening 34 through which the central portion of the flat plate portion 32 of the umbrella-shaped plate 31 is perforated while sliding downward.
(B) Further, the circuit board 40 is slid downward to form a through hole 17a formed in the flange 13a of the hemisphere member 11A of the black ball temperature measuring instrument 10 and a through hole 17b formed in the flange 13b of the hemisphere member 11B. Is aligned with the bolt 51a of the umbrella-shaped plate connecting member 51 protruding through the umbrella-shaped plate connecting member insertion cylinder 35 of the flat plate portion 32 of the umbrella-shaped plate 31 at the uppermost portion of the radiation shield 30, and then the black ball. The temperature measuring instrument 10 is dropped, and the protrusion 13c provided on the flange 13b of the hemisphere portion 11b is fitted into the recess 36b provided in the upper surface of the flat plate portion 32 of the uppermost umbrella-shaped plate 31.
(C) Finally, the umbrella-shaped plate protruding from the through hole 17a formed in the flange 13a of the hemisphere member 11A of the black globe temperature measuring instrument 10 and the through hole 17b formed in the flange 13b of the hemisphere member 11B. A nut is tightened from above the bolt 51a of the connecting member 51 to fix the black bulb temperature measuring instrument 10 to the upper part of the radiation shield 30.
As described above, the heat stroke index measuring device 1 of the present embodiment is completed.

Regarding the measurement of the WBGT value by the heat stroke index measuring device of the present invention, the black ball temperature is measured by the black ball temperature measuring device 10, and the dry ball temperature of the ambient air of the radiation shield 30 is measured by the temperature / humidity sensor 42 in the radiation shield 30. As the relative humidity of the air, the dry bulb temperature of the air in the radiation shield 30 and the relative humidity of the air are measured, and the WBGT value calculation unit calculates and calculates the WBGT value based on the input signals of these three measured values.

The heat stroke index measuring device of the present invention can be used in a facility where many people gather, such as a construction site or a manufacturing factory where workers actually exist, a meeting place, a gymnasium in a school, or the like.

1 Heat illness index measuring device 10 Black ball temperature measuring device 12 Strut 13A, 13B Hemispherical member 16 Circular hole 17a, 17b Through hole 18 Board 19 Temperature sensor 21 LED light 30 Radiation shield 31 Umbrella plate 34 Opening 35 Umbrella plate connection Member insertion cylinder 36 Connecting member 37a, 37b Circuit board insertion groove 40 Circuit board 41 Low power wireless module 42 Temperature / humidity sensor 44 Control unit 45 Internal antenna 46 Groove 47 Dry battery 51 Umbrella plate connecting member 60 Bottom plate 61 Fixed part 64 External antenna Mounting part 65 Antenna-shaped plate connecting member insertion hole 66 Recess

Claims (5)

A black ball temperature measuring instrument 10 having a black ball temperature sensor 19 inside, a temperature / humidity sensor 42, a temperature / humidity sensor 42, and an arithmetic circuit unit that calculates a thermal index based on the measured values of the black ball temperature sensor 19. It is a heat stroke index measuring device which is connected and fixed to a radiation shield 30 which is provided inside with a circuit board 40 provided with the above.
The black sphere temperature measuring instrument includes a hemisphere member 11a composed of a hemisphere 11a configured in two parts, a strut 12a having a semicircular cross section and a hemispherical flange 13a, a hemisphere 11b, a strut 12b having a semicircular cross section, and a semicircle. A hemispherical member 11B composed of a circuit board mounting portion 14 extending and hanging from the semicircular flange 13b is fastened together to form a spherical shape.
The radiation shield 30 connects the umbrella-shaped plate connecting member insertion cylinder 35 hanging from the central flat plate portion 32 of the umbrella-shaped plate 31, and the umbrella-shaped plate connecting member 51 is attached to each umbrella-shaped plate connecting member insertion cylinder 35. A heat stroke index measuring device characterized in that a plurality of umbrella-shaped plates 31 are connected and fixed vertically at regular intervals to form a tower shape by inserting and penetrating. A hemispherical hole 16a is provided on the bottom surface of the hemisphere 11a of the hemisphere member 11A of the black globe temperature measuring instrument 10, a through hole 17a is provided on the flange 13a, a hemispherical hole 16b is provided on the bottom surface of the hemisphere 11b of the hemisphere member 11B, and a through hole 17b is provided on the flange 13b. Perforated,
The semicircular hole 16a and the semicircular hole 16b form a circular hole penetrating the electric wire connecting the black bulb temperature sensor 19 and the circuit board 40 in the previous period, and the umbrella-shaped plate connecting member 51 is formed into the through holes 17a and 17b. The heat stroke index measuring device according to claim 1, wherein the device is penetrated. The heat stroke index measuring device according to claim 1 or 2, wherein an LED light is provided on at least one of the flange 13a of the hemisphere member 11A and the flange 13b of the hemisphere member 11B of the black globe temperature measuring instrument 10. The umbrella-shaped plate 31 constituting the radiation shield 30 is a flat plate portion 32 having a flat upper surface, and the outer peripheral edge portion is inclined outward toward the outside to form an outer peripheral inclined surface 33, and the flat plate portion 32 of the umbrella-shaped plate 31 is formed. The opening 34 is hung in the center of the flat plate portion 32, the umbrella-shaped plate connecting member insertion cylinder 35 is hung below the flat plate portion 32, and the umbrella-shaped plate connecting member insertion cylinder 35 is hung down on the flat plate portion 32 in parallel with the umbrella-shaped plate connecting member insertion cylinder 35. The heat stroke index measuring device according to any one of claims 1 to 3, wherein the connecting member 36 having a recess 36b at the rear end thereof and the circuit board insertion grooves 37a and 37b are provided. .. The passion according to any one of claims 1 to 4, wherein the circuit mounting board 40 is provided with a low power wireless module 41, a temperature / humidity sensor 42, a control unit 44, an internal antenna 45, and a power supply 47. Disease index measuring device.

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