JP3524292B2 - Ventilation type temperature and humidity measurement device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation type temperature and humidity measuring device, and more particularly, to a thermometer and a humidity meter which are installed outdoors so that the temperature and humidity of the atmosphere can be simultaneously measured with high accuracy. The present invention relates to improvement of a ventilation type temperature and humidity measuring device equipped with a meter.

[0002]

2. Description of the Related Art Conventionally, when measuring the atmospheric temperature of this kind, it is necessary to improve the accuracy of the measurement to ensure accuracy.
Direct solar radiant energy (direct light, reflected light, ground,
A housing structure capable of blocking radiation (including radiation from the peripheral portion), in which a ventilation tube is used, and a temperature sensor as a temperature-sensing element is internally housed and held in the ventilation tube. The temperature is measured by forcibly ventilating a large amount of ambient air, and an electric temperature measuring element such as a platinum resistor is generally used as the temperature sensor in many cases. Further, a humidity sensor such as a hair hygrometer, an electric hygrometer, or a dew point hygrometer as a humidity sensitive element is usually used for measuring the atmospheric humidity. However, on the other hand, each of these temperature and humidity sensors has a configuration that takes into consideration the measurement environment, etc., because the suitable points for the wind speed of each sensing part differ due to differences in size, shape, sensitivity characteristics, etc. Unless the above special measures were taken, the same ventilation tube could not be shared and both could be installed inside.

[0003]

Therefore, in the prior art, various arrangements have been made in the structure of the ventilation tube so as to meet the purpose. At present, the structure of an effective ventilation tube device sufficient to mount the sensor in the ventilation tube in common is not yet obtained.

Further, in the conventional ventilation tube device, generally, the ambient air (measured atmosphere) sucked from the lower intake port side of the ventilation tube is discharged to the upper exhaust port side, and when passing through the ventilation tube. , The temperature or humidity of the atmosphere is measured by each temperature or humidity sensor placed inside,
Depending on the structure of the ventilation tube and the conditions of use, the heated air discharged from the upper outlet may be taken into the lower inlet again and an abnormal measured value may be displayed, or it may be taken into the ventilation tube. The water content of the fog and the water droplets caused by rainwater or dew condensation adhere to the temperature sensitive part or the moisture sensitive part and impair the measurement accuracy. Therefore, it is necessary to devise a quick recovery to the normal state after the fog is eliminated. Also, under strong wind, the inlet of the ventilation cylinder,
There is a concern that each part of the outlet will be blocked by wind pressure, and the ventilation in the temperature-sensitive part or the humidity-sensitive part will stagnate, making accurate temperature or humidity measurement impossible. There have been various undesired problems such as loss of maintainability due to the complicated structure.

The present invention has been made in order to solve the above-mentioned problems of the prior art. The object of the present invention is to use a common ventilation tube to measure each temperature and humidity with high accuracy at all times. It is an object of the present invention to provide a ventilation-type temperature and humidity measuring device that can be achieved, and that is structurally relatively simple and that exhibits excellent maintainability.

[0006]

In order to achieve the above object, a ventilation type temperature and humidity measuring apparatus according to claim 1 of the present invention is provided on an upper cylinder and a lower side of the upper cylinder. A ventilation tube composed of a lower cylinder body that can be assembled and divided as closely as possible, a support bracket provided in the upper cylinder body, and a suspension bracket individually attached to the support bracket and suspended in the lower cylinder body, respectively. A temperature detecting element and a humidity detecting element, and a blower that is arranged on the upper part of the ventilation tube and sucks ambient air from the lower side of the ventilation tube and discharges it to the outer periphery on the upper side. I am trying.

Therefore, in the measuring device according to the first aspect of the present invention, the temperature of the ventilation flow is changed in the process of sucking the ambient air from the lower side of the ventilation tube and discharging it to the outer periphery of the upper side with the ventilation operation. At the same time, the humidity of the ventilation flow is detected by the humidity detecting element. On the other hand, by separating the lower tubular body from the upper tubular body of the ventilation duct, both the temperature detecting element and the humidity detecting element can be exposed to the outside, so effective maintainability is ensured. Then, when measuring temperature and humidity, water drops such as rainwater that enter from the upper side of the ventilation tube and minute water drops such as dew condensation or fog are sucked into the inner surfaces of the upper and lower cylinders and become larger water droplets during collision. The generated water is vaporized and dissipated by the aeration flow passing through the relevant part, and also flows down through the relevant part and is discharged to the outside from around the lower end opening of the lower cylinder, and as a result, is not affected by the infiltrated water content and the condensed water content. Accurate temperature and humidity measurements are made.

In the ventilation type temperature and humidity measuring apparatus according to a second aspect of the present invention, in the apparatus configuration according to the first aspect, at least the lower tubular body of the ventilation tube is formed in a tubular shape in which a heat insulating material is filled. It is characterized by being.

In the measuring device according to the second aspect, among the lower cylindrical body,
Since the space between the outer and outer surfaces is insulated by the heat insulating material inside,
The heat insulating property on the inner surface side of the lower cylinder, which is most likely to cause dew condensation, is excellently secured, and the influence of dew condensation on the temperature measurement can be significantly reduced.

A ventilation type temperature and humidity measuring device according to a third aspect of the present invention is the device configuration according to the first or second aspect, wherein:
A holding opening on the temperature measuring side is provided in the central portion, an insertion opening on the humidity measuring side is provided on one side, and a ventilation rectifying plate having a plurality of rectifying openings penetratingly formed on the other portion is provided, and the ventilation rectifying plate is provided on the lower tubular body. Is fixed to the inside of the upper end of the ventilation duct, and a ventilation duct is hung from the holding opening so that the temperature sensing part of the temperature detecting element can be received in the ventilation duct, and the ventilation duct is connected to the lower end of the ventilation duct. The ventilation introduction hood is connected, and further, a guide conduit is projectingly provided through a portion of the ventilation introduction hood corresponding to the insertion opening, and the humidity sensing portion of the humidity detecting element is passed through the insertion opening in the guide conduit. It is characterized by making it possible to accept.

In the measuring device according to the third aspect of the present invention, by the ventilation straightening plate installed inside the lower side of the upper cylinder, water drops such as rainwater and the like which enter from the upper side of the ventilation cylinder at the time of each measurement of temperature and humidity and the upper cylinder. Inside the ventilation duct for moisture that attaches to the inner surface of the
Direct entry into the guide conduit is prevented, water droplets are vaporized by the ventilation flow passing through the corresponding part, and drip from the insertion opening and adhere to the outer surface of the ventilation introduction hood or the inner surface of the lower cylinder. Moisture that attaches to and is attached to the water is also evaporated and diffused by an airflow passing through the corresponding portion, and is also discharged to the outside from around the lower end opening of the lower tubular body while flowing down the corresponding portion.

According to a fourth aspect of the present invention, there is provided the ventilation type temperature and humidity measuring apparatus according to the third aspect, wherein the ventilation straightening plate is slightly bulged upward from the central portion and has an inclination angle toward the periphery. It is characterized by being formed in a large frusto-conical shape (shade shape).

In the measuring device according to the fourth aspect, since the cross-sectional shape of the ventilation baffle plate is formed in a cap shape, raindrops or the like that infiltrate from the upper side of the ventilation tube rapidly flow toward the peripheral portion and are collected. Therefore, the inflow to the temperature sensitive part and the humidity sensitive part side is effectively prevented.

According to a fifth aspect of the present invention, there is provided a ventilation type temperature and humidity measuring device in the device configuration according to the third or fourth aspect.
It is characterized in that an external conduit is arranged around the outer periphery of the ventilation conduit suspended in the holding opening of the ventilation baffle with a ventilation path.

In the measuring apparatus of the fifth aspect, the heat flow of the ambient temperature with respect to the temperature sensing portion is enhanced because the heat insulation of the ventilation duct is enhanced by the air flow flowing in the ventilation passage between the ventilation duct and the outer peripheral duct. The impact is effectively reduced.

According to a sixth aspect of the present invention, there is provided a ventilation type temperature and humidity measuring apparatus, wherein in the device configuration according to any of the third to fifth aspects, the downward direction is set to have a hem diameter slightly larger than the inner diameter of the ventilation duct. Has a light-shielding cup in the center, and a ventilation guide plate having a downward facing inner surface of the cup formed into a mirror surface is provided,
The ventilation introducing plate is fixed to the lower end opening of the lower cylindrical body.

In the measuring device of the sixth aspect, the ventilation introducing plate fixed to the lower end opening of the lower cylindrical body has a downward shading cup having a hem diameter larger than the inner diameter of the ventilation duct in the central portion, and Since the lower inner surface of the cup is formed as a mirror surface, unwanted light and heat energy incident from the ground surface can be effectively reflected and the invasion thereof can be prevented even better.

According to a seventh aspect of the present invention, there is provided a ventilation type temperature and humidity measuring apparatus according to any one of the first to sixth aspects, wherein a sirocco fan is used as the ventilation device, and the sirocco fan is spaced apart. It is characterized by arranging an exhaust lead-out ring around the outside.

In the measuring device of claim 7, the sirocco fan used as a ventilation device blows air on the rotation axis core side (center axis side) and then exerts a centrifugal air blowing action in the circumferential direction. Since the exhaust ventilation lead-out ring is provided in the periphery, ventilation from the lower side to the upper side of the ventilation tube and discharge to the outer periphery are smoothly and appropriately performed, and re-suction of the exhaust gas is blocked. In particular, in the measuring device according to claim 8, since the sirocco fan is in the opposite direction to the normal rotation direction, the wind works so as to amplify the rotational force of the fan under strong wind, and the temperature and humidity sensing parts are different. It is characterized by promoting the ventilation of. The sirocco fan sucks in and discharges air both in forward rotation and in reverse rotation, but in reverse rotation, even if efficiency decreases somewhat, it will act in the direction of promoting the rotation when a side wind is received, so the rotation will not decrease and the motor There is an advantage that the current is reduced.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a ventilation type temperature and humidity measuring apparatus according to the present invention will be described below with reference to FIGS.
Will be described in detail with reference to.

FIG. 1 is a vertical sectional side view showing the general construction of the ventilation type temperature and humidity measuring apparatus according to this embodiment.
FIG. 4 is a cross-sectional explanatory view showing a state in which a lower cylinder is separated from an upper cylinder of the measuring device. 3 and 4 are a plan view and a central cross-sectional view showing a rectifying board with ventilation holes that are fixedly installed at a required height position in the upper cylinder, and FIGS. FIG. 5 is a plan view and a central cross-sectional view showing a ventilation introducing plate arranged in a lower surface ventilation opening of the lower tubular body.

In the apparatus configurations shown in the respective drawings of these embodiment examples, the present measuring apparatus is set to have a length as short as possible in which each measuring element for temperature and humidity is separately installed to reduce the internal surface area. It has a tubular ventilation tube 11 and a blower 41 for introducing forced air by introducing the surrounding atmosphere from the lower side to the upper side in the ventilation tube 11. In addition, the ventilation tube 11
Is composed of an upper cylinder 11A having a cylindrical cross section and a lower cylinder 11B having a cylindrical cross section that is detachably inserted into the lower inside of the upper cylinder 11A as closely as possible. Cage,
By appropriately fixing the upper tubular body 11A to the mounting arm 62 of the planting pillar 61, the upper tubular body 11A is held at an axially vertical position above and away from the ground surface G. Here, the reason why the inner surface area of the ventilation tube 11 is made as small as possible is to reduce the adhesion of water to the inner surface as much as possible, and to make it straight tube. Is to maintain the desired amount of ventilation by eliminating the change in pipe diameter and bending that become ventilation resistance.

For the upper cylinder 11A, a sensor support bracket 12 is provided inside the upper part so as not to obstruct ventilation as much as possible, and the exhaust air is exhausted through a mounting flange 13 around the outer periphery of the upper end surface. The side opening ring 14 is arranged. A ventilation rectifying plate 15 for ventilation is fixedly provided so as to cross the inside of the lower side at a required distance from the lower end surface.

The lower cylindrical body 11B is formed in a double circular tubular shape with the heat insulating material 25 filling the inside thereof, and the heat insulating material 25 insulates the inside of the cylindrical body from the outside. The annular upper and lower end plates 26, 27
The lower end plate 27 is provided with an annular groove 28 for draining around the lower surface of the lower end plate 27.
On the other hand, the ventilation introducing plate 31 which partially serves as the light shielding portion is fixed. Further, a ventilation rectifying plate 15 for ventilation is fixedly provided so as to cross the inside of the upper end side of the lower tubular body 11B.

As shown in FIGS. 3 and 4, the ventilation baffle plate 15 has a circular plane shape and a vertical cross-section that is slightly bulged upward from the center and has a large inclination angle, that is, a frustoconical shape. It has a cap shape, and the cap shape facilitates the flow of water such as rainwater that enters from above from the top and moisture due to dew condensation to the peripheral side, and in the center part, a holding opening 16A having a required inner diameter on the temperature measurement side. In addition, one of the center portions, in this case, one side portion that is biased to the left is formed with an insertion opening 16B that also functions as ventilation and rectification with a sufficiently large inner diameter on the humidity measurement side. In addition, rectifying openings 17A, 17B, and 17C are formed at a plurality of other portions so as to achieve good ventilation. Each of the openings has a ring diameter so that the temperature and humidity can be easily changed by setting the diameter to the required wind speed of the sensing part.
Orifices can be attached. Further, each of the openings, particularly the insertion opening 1 which is a part of the ventilation path for the introduced air.
6B and each of the rectifying openings 17A, 17B, 17C have a plate-like shape or a rounded arc-like shape at the inner end edge portions above and below the opening in order to make the ventilation as smooth as possible. It is preferable to chamfer.

In the holding opening 16A, a ventilation duct 18 serving as a temperature-measuring holding pipe, in which an external duct 19 is arranged on a concentric circle around the outside with a ventilation passage at a required interval, is suspended and supported in the vertical direction. The upper end surface of each of the conduits 18 and 19 is fixedly held by a mounting end plate 20 having a required orifice opening, and the ventilation conduit 18 is provided in the external conduit 19 around the outer periphery thereof, that is, by the air flow flowing through the ventilation path. Eliminates thermal effects from the surroundings. In addition, an inverted funnel-shaped ventilation introduction hood 22 having a lower end skirt portion formed into a concentric cylindrical shape is connected to the lower end of the ventilation duct 18 by interposing an end connection pipe 21 so as to spread downward and expand. I am doing it. Further, on one side portion of the ventilation introduction hood 22 corresponding to the insertion opening 16B, a guide conduit 23 as a humidity measuring holding pipe protruding vertically through is independently fixed. With respect to the guide conduit 23, the independent arrangement prevents the occurrence of dew condensation or the like as much as possible.

As the ventilation introducing plate 31, as shown in FIGS.
As shown in FIG. 4, a downward light-shielding cup 32 having a skirt diameter slightly larger than the inner diameter of the ventilation duct 18 is provided in the center portion, and a downward inner surface of the light-shielding cup 32 has a mirror surface for reflecting radiant heat energy. After being formed in 33, each support piece 34 with an intermediate step portion 35 extending in the radial direction from the light shielding cup 32 is fixed to the lower end plate 27 of the lower cylindrical body 11B, which is opened at the lower end. The width of the intermediate step portion 35 is set to be larger than the other portions in the portion immediately below the humidity detecting element B to enhance the light shielding effect.

The temperature sensor A and the humidity sensor B, which are used as the temperature and humidity detecting elements, are both fixed to the sensor support bracket 12 so that they are suspended downward. The former temperature sensor A is loaded into the ventilation duct 18 from above to a predetermined height position, and the latter humidity sensor B is guided by a guide duct 23 independently provided in the ventilation introduction hood 22.
Similarly received and charged within. In each of these sensors A and B, a sufficient ventilation space is left in the surroundings in the respective charging states, so that the generation of dew condensation on the inner surface of each pipe and the generation of water droplets by the ventilation flow flowing through the ventilation space. Adhesion can be effectively prevented, and the influence of residual water droplets can be effectively prevented especially in the case of humidity measurement.

Here, as shown in FIG. 1, the lower tubular body 11B contacts the lower end of the upper tubular body 11A with the upper end plate 26 side in contact with the peripheral skirt of the ventilation baffle plate 15. Up to the lower end plate 27 in the fitted state.
The respective support pieces 34 of the air intake introducing plate 31 fixed to the above are brought into contact with the lower end opening surface of the ventilation introducing hood 22 to be combined, and in this combined state, the upper cylindrical body 11A
The lower cylinder 11B can be detachably fixedly held by screwing the set screw 29 from the outside. Therefore, at the time of maintenance or the like, by unscrewing the set screw 29, as shown in FIG. 2, the lower cylindrical body 11B including the air intake introducing plate 31 at the lower end opening is replaced with the upper cylindrical body 11A.
The main constituent parts including the temperature sensor A and the humidity sensor B that require maintenance or the like in the ventilation tube 11 can be easily exposed.

Next, the blower 41 corresponds to the upper cylindrical body 1
At the upper opening end of 1A, there are respectively provided two upper and lower exhaust lead-out rings 43 and a motor board 44, which are fixed to a mounting flange 13 including the opening ring 14 via a support pillar 45 which also serves as a spacer. A rotary fan unit for ventilation, here an electric motor 42A, and a sirocco fan 42B rotatably driven by the electric motor 42A are arranged on the motor substrate 44. In addition, these electric motor 42A and sirocco fan 4
A rain cover 48 is covered by a mounting post 49 on the top exhaust port 47 of the outer hood 46 that covers the entire 2B. In this case, the sirocco fan 42B is configured to generate air on the rotation shaft core side (center axis side) and then to perform centrifugal air blowing action to the circumferential direction side, and each exhaust derivation ring arranged on the circumferential direction side. 43 and 43 regulate the exhaust direction. And
Here, the electric motor 42A is arranged at an upper position separated from the sirocco fan 42B, and the external hood 4
Since it is protected by 6 and the rain cover 48, the life of the motor can be extended without being directly hit by wind and rain.

Therefore, in the configuration of the above-described embodiment, by rotating the electric motor 42A in the upper part of the apparatus to blow the sirocco fan 42B, the ambient air is introduced into the ventilation pipe 11 of the lower cylinder 11B. On the one hand, the introduced airflow is sucked and introduced through the part 31, and then passes through the ventilation introduction hood 22 inside the ventilation conduit 18 and then through the detection part of the temperature sensor A which is a temperature sensing part, and then, respectively in upper and lower two stages. On the other hand, it is guided to the exhaust gas outlet ring 43 and discharged to the outside, and on the other hand, inside the guide conduit 23 independently held through a part of the ventilation introduction hood 22, and by extension, of the humidity sensor B, which is the humidity sensing part. After passing through the detection portion, it is similarly guided to each exhaust lead-out ring 43 and discharged to the outer periphery,
The former temperature sensor A measures the temperature and the latter humidity sensor B measures the humidity satisfactorily and effectively.

That is to say, in the case of the device configuration according to the present embodiment example, each of the temperature sensor A and the humidity sensor B is separately installed in the same ventilation tube.
In other words, in other words, the same ventilation tube can be shared and each temperature and humidity measurement can be performed effectively and appropriately.

In this case, the ventilation introduction plate 31 attached to the lower end plate 27 of the lower cylinder 11B constituting the ventilation cylinder 11 is located at the center and is slightly larger than the inner diameter of the ventilation conduit 18. Since the downward light-shielding cup 32 having a large skirt diameter is provided and the downward inner surface of the light-shielding cup 32 is formed as the mirror surface 33, it is possible to effectively input unnecessary light and thermal energy from the ground surface. It is possible to satisfactorily prevent the invasion of each of these energies which reflects and interferes with each measurement of temperature and humidity.

Further, since the exhaust gas on the upper side by the sirocco fan 42B is directed in a substantially horizontal direction by the exhaust lead-out rings 43, 43, the exhaust gas is directly sucked again from the intake port at the lower part. This allows accurate temperature and humidity measurements.

On the other hand, by separating the lower tubular body 11B from the upper tubular body 11A of the ventilation duct 11, both the temperature sensitive portion and the moisture sensitive portion can be exposed to the outside, so that effective maintainability is secured. It Further, when measuring the temperature and humidity, water droplets such as rainwater that infiltrate from the upper side of the ventilation tube and moisture that condenses and adheres to the inner surface of the upper tube are directly attached to the ventilation conduit and the guide conduit by the ventilation straightening plate. In addition to being prevented from infiltrating, the water is vaporized by the ventilation flow passing through the corresponding part, and drops from the insertion opening to adhere to the outer surface of the ventilation introduction hood or to form dew on the inner surface of the lower cylinder. Similarly, the water is evaporated and dissipated by the aeration flow passing through the corresponding portion, and also flows down through the corresponding portion and is discharged to the outside from around the lower end opening of the lower cylinder, resulting in the infiltrated water and the condensed water. Accurate temperature and humidity measurements that are not affected by

[0036]

As described above in detail with reference to the embodiments, according to the ventilation type temperature and humidity measuring device of the present invention, the upper cylinder and the lower side of the upper cylinder are fitted as closely as possible. A ventilation tube composed of a lower cylinder that can be assembled and divided by being inserted is provided, and a temperature detection element and a humidity detection element are attached to a support bracket arranged in the upper cylinder to hang them individually toward the lower cylinder, Further, since the ventilation device is arranged on the upper part of the ventilation tube so that the ambient air is sucked from the lower side of the ventilation tube and discharged to the outer periphery of the upper side, the temperature of the ventilation flow in the ventilation tube is controlled to be the temperature. The humidity can be detected by the detection element and simultaneously by the humidity detection element.
That is, here, there is an advantage that the same ventilation tube can be shared and the temperature and humidity can be measured simultaneously.

Water droplets such as rainwater that enter from the upper side of the ventilation tube at the time of measuring the temperature and humidity and moisture that condenses and adheres to the inner surfaces of the upper and lower cylinders pass through the corresponding section. In addition to being vaporized by the airflow, it flows down the relevant part and is discharged from around the lower end opening of the lower cylinder to the outside. As a result, it is possible to obtain accurate temperature and humidity that are not affected by infiltrated water and condensed water. Each measurement is made. On the other hand, by separating the lower tubular body from the upper tubular body of the ventilation tube, both the temperature detecting element and the humidity detecting element can be exposed, so that it has an excellent feature that maintenance work can be performed very easily and easily. Therefore, despite the relatively simple structure, various advantageous effects can be exhibited in practical use.

When at least the inside of the lower cylinder of the ventilation cylinder is filled with a heat insulating material, the inside and outside surfaces of the lower cylinder can be effectively insulated, and the inner surface of the lower cylinder most likely to cause dew condensation. The heat insulation on the side is well secured, and
The effect on humidity measurement can be significantly reduced.

Further, a holding opening on the temperature measuring side is provided in the central portion, an insertion opening on the humidity measuring side is provided on one side, and a ventilation rectifying plate having a plurality of rectifying openings penetratingly formed on the other portion is provided. Is fixed to the inside of the lower side of the upper tubular body, and the temperature sensing part of the temperature detecting element can be received in the ventilation duct suspended in the holding opening, and the ventilation introduction hood is connected to the lower end of the ventilation duct. In addition, when the humidity sensing element of the humidity detecting element can be received in the guide conduit projecting through the portion corresponding to the insertion opening, the ventilation rectifier plate is used to measure the temperature and humidity of the ventilation tube. Direct intrusion of water drops such as rainwater entering from the upper side and water that condenses and attaches to the inner surface of the upper cylinder into the ventilation conduit and guide conduit, and evaporates by the ventilation flow passing through the corresponding part. Can be volatilized and, in addition, can be dripped from the insertion opening to ventilate For even water adhering to condensation on the inner surface of the water droplets and the lower cylindrical body to adhere to the outer surface of the entrance hood, in addition to be vaporized stripped with ventilation flow through similarly applicable portion,
The corresponding part can be made to flow down and be discharged to the outside from around the lower end opening of the lower cylinder.

When arranging an external conduit around the outer periphery of the ventilation conduit suspended in the holding opening of the ventilation baffle with a ventilation conduit, the ventilation conduit between the ventilation conduit and the outer peripheral conduit is provided. The flowing airflow enhances the heat insulating property of the ventilation duct, and can effectively reduce the thermal influence of the ambient temperature on the temperature sensing part.

Further, there is provided a ventilation guide plate having a bottom-side light-shielding cup having a hem diameter slightly larger than the inner diameter of the ventilation duct at the center and a downward inner surface formed into a mirror surface, and the ventilation guide plate is provided at the lower end of the lower cylinder. When it is fixed to the opening, it can effectively reflect unwanted light and heat energy incident from the ground surface,
The influence of each energy can be eliminated.

Furthermore, when a sirocco fan is used as the ventilation device and the exhaust air guide ring is arranged around the outer periphery of the sirocco fan at a distance, the exhaust air guide ring unique to the sirocco fan moves from the exhaust air guide ring to the outer periphery. Of the exhaust gas is smoothly and properly performed, and re-suction of the exhaust gas is prevented. Further, even under strong wind, the ventilation in the ventilation duct is smoothly performed.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional side view showing a schematic configuration of an entire ventilation type temperature and humidity measuring device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional explanatory view showing a state in which a lower tubular body is separated from an upper tubular body of the ventilation tube.

FIG. 3 is a plan view showing a flow regulating board with ventilation holes that is fixedly installed at a required height position in the upper cylinder.

FIG. 4 is a central cross-sectional view showing the same rectifying board.

FIG. 5 is a plan view showing a ventilation introducing plate disposed in a lower surface suction opening portion of the lower cylindrical body.

FIG. 6 is a central cross-sectional view showing a ventilation introducing plate of the same.

[Explanation of symbols]

11 air duct 11A Upper cylinder 11B Lower cylinder 12 Sensor support bracket 13 Mounting flange 14 Opening ring 15 Ventilation straightening plate 16A holding opening 16B insertion opening 17A-C Rectifier opening 18 Ventilation conduit as a holding tube for temperature measurement 19 External conduit 20 Mounting end plate with orifice opening 21 End connection pipe 22 Ventilation introduction hood 23 Guide conduit as a holding tube for humidity measurement 25 insulation 26 Upper end plate 27 Lower end plate 28 annular groove for drainage 29 Set screw 31 Ventilation introduction plate 32 Shading cup 33 Mirror surface for reflection 34 Support piece 35 Intermediate stage 41 blower 42A electric motor 42B Sirocco fan 43 Exhaust gas outlet ring 44 motor board 45 Support columns 46 External hood 47 Top exhaust port 48 rain cover 49 Mounting post A temperature sensor (temperature detection element) B Humidity sensor (humidity detection element) 61 planting columns 62 mounting arm

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G01K 1/14 G01W 1/00-1/02 G01W 1/11

Claims (8)

(57) [Claims] 1. A ventilation tube comprising an upper cylinder, and a lower cylinder that can be assembled / divided into the lower side of the upper cylinder as closely as possible, and a support bracket provided in the upper cylinder. A temperature detecting element and a humidity detecting element which are individually attached to the support bracket and are respectively hung in the lower cylinder, and the temperature detecting element and the humidity detecting element, which are arranged on the upper part of the ventilation cylinder and which surround the surrounding atmosphere from the lower side of the ventilation cylinder. It is equipped with an air blower that sucks and discharges to the outside of the upper side.
Providing ventilation rectifier plates that penetrate through the insertion openings,
The ventilation straightening plate is fixed to the upper end of the lower cylinder, and
Further, by suspending a ventilation conduit from the holding opening,
So that it can receive the temperature sensing part of the temperature detecting element
And connect the ventilation introduction hood to the lower end of the ventilation conduit.
And further correspond to the insertion opening of the ventilation introduction hood.
The guide conduit through the part where
Receive the humidity sensitive part of the humidity detecting element through the insertion opening.
A ventilated temperature and humidity measuring device characterized by being capable of being operated. 2. The ventilation type temperature and humidity measuring device according to claim 1, wherein at least a lower tubular body of the ventilation duct is formed into a tubular shape with an insulating material filled therein. 3. A temperature measuring side is provided at the center of the ventilation straightening plate.
Hold the holding opening on one side and the insertion opening on the humidity measurement side on the other side.
The above-mentioned claim in which a plurality of respective rectifying openings are formed so as to penetrate therethrough.
The ventilation type temperature and humidity measuring device according to 1 or 2 . 4. The ventilation rectifying plate according to claim 3, wherein the ventilation rectifying plate is formed in a frusto-conical shape (shade shape) having a large inclination angle toward the periphery, which is slightly bulged upward from the central portion. Ventilation type temperature and humidity measuring device. 5. The ventilation duct according to claim 3 or 4, wherein an external duct is arranged with a ventilation passage being separated from an outer periphery of the ventilation duct suspended from the holding opening of the ventilation baffle. Temperature and humidity measuring device. 6. A ventilation introducing plate having a downward light-shielding cup having a skirt diameter slightly larger than the inner diameter of the ventilation duct at the center and a downward inner surface of the cup formed into a mirror surface, wherein the ventilation is provided. The ventilation type temperature and humidity measuring device according to any one of claims 1 to 5 , wherein an introduction plate is fixed to an opening at a lower end of the lower cylindrical body. 7. The ventilation type temperature according to claim 1, wherein a sirocco fan is used for the blower, and an exhaust lead-out ring is arranged around an outer periphery of the sirocco fan with a space therebetween. And humidity measuring device. 8. The ventilation type temperature and humidity measuring device according to claim 7, wherein the sirocco fan is adapted to rotate in the opposite direction to the normal rotation.