JPH039700Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a temperature and humidity measuring device applied to an incubator, and is used to measure the temperature and humidity of a nursery room for protecting and raising premature infants such as premature infants. This invention relates to a device for detection.

[Conventional technology]

As is well known, incubators are used to protect and raise physically immature premature infants, such as preterm infants, in an optimal environment that is cut off from outside air. The general structure of such an incubator is that a bed for premature infants is placed on a pedestal, and a transparent hood made of acrylic resin or the like surrounds this bed to form an incubation room. The air inside the nursery room is drawn into an air supply path arranged at the bottom of the nursery room, and this air is mixed in the air supply path with fresh air drawn in from outside as needed. Then, after being heated to an appropriate temperature by an electric heater or humidified by a humidifying means, it is circulated and supplied into the nursery room.

In the case of conventional incubators, the temperature measurement to control the amount of power supplied to the electric heater is performed using a single temperature sensor, and the temperature sensor is connected to air drawn from the nursery room and air drawn from outside. It is disposed in a merging chamber provided within the air supply path in order to merge the air with the air. A temperature sensor disposed in the merging chamber measures the temperature inside the merging chamber, and the amount of power supplied to the electric heater is controlled based on this measured value.

[Problem that the invention attempts to solve]

In order to control the environment inside the nursery room to be optimal for the infants to be housed, it is essential to detect the temperature and humidity inside the nursery room. However, in order to attach all of these multiple sensors to the hood surrounding the nursery room, openings for each sensor must be formed in the hood.
In addition, signal transmission lines from each sensor must be wired to the control unit installed in the incubator body, but when multiple sensors are used, the wiring work is troublesome and If the signal transmission lines are wired, they will become tangled and become a hindrance when handling the incubator.

In particular, nursery rooms must be frequently cleaned or disinfected to prevent cross-infection, and the hood must be opened or removed each time.
In that case, it is necessary to remove the sensor one by one, and for this reason, when a plurality of sensors are disposed, the cleaning work becomes very troublesome, and the efficiency of the cleaning work is significantly reduced.

For these reasons, as described above, in conventional incubators, the temperature in the air merging chamber in the air supply path is measured instead of measuring the actual temperature inside the nursery room. Even if the temperature of the air merging room is measured in this way, if all the air flowing into the merging room is from inside the incubator, the difference between the temperature detected in the merging room and the actual temperature inside the nursery will be very small. It was thought that the error was so small that it could be ignored.
However, fresh air may be drawn into the air confluence room, especially from outside the incubator, and for this reason, if there is a large difference between the temperature outside the incubator and the temperature inside the incubator, the air confluence room may detect The difference between the temperature and the actual temperature inside the nursery room becomes so large that it cannot be ignored.

Furthermore, the heat loss of infants being protected and raised in the nursery room is not only affected by the temperature and humidity inside the nursery room, but is also strongly influenced by the wall temperature of the hood and heat radiation from outside the incubator through this wall. . Therefore, when controlling the amount of power supplied to the electric heater for heating the air supplied into the nursery room, it is desirable to take the wall temperature of the hood into consideration. However, conventional incubators were not provided with a wall temperature sensor for detecting the wall temperature of the hood.

The present invention was developed in view of the above-mentioned problems, and allows multiple sensors to be easily attached to and removed from the nursery room, thereby making cleaning work easier and controlling the temperature inside the nursery room. The purpose is to enable ideal control.

[Means for solving problems]

As shown in FIG. 1, for example, the rear wall 6b of the hood 6 to which the sensor unit 38 of the temperature and humidity measuring device according to the present invention is attached has a wall temperature measuring hole 44 extending along the wall surface of this wall portion 6b. is formed. Further, in the vicinity of the wall temperature measurement hole 44, an opening 43 is provided in, for example, the side wall 6a, which is substantially orthogonal to the rear wall 6b in which the wall temperature measurement hole 44 is formed. A rod-shaped wall temperature sensor 42 inserted into the wall temperature measurement hole 44, an air temperature sensor 41 for measuring the temperature inside the nursery room 2, and a humidity sensor for measuring the humidity inside the nursery room 2. 45 and
It is assembled into a single casing 46 formed into an elongated box shape, and constitutes a single sensor unit 38.

A fitting portion 48 that fits into the opening 43 of the hood 6 is provided on the casing 46 of the sensor unit 38, and at least the wall temperature sensor 41 is directed outward from the surface where the fitting portion 48 is provided. It is provided so as to protrude from the top. Furthermore, when the sensor unit 38 is attached to the hood 6 while the fitting portion 48 is fitted into the opening 43, the wall temperature detection sensor 42 is inserted into the wall temperature detection hole 44 of the rear wall 6b of the hood 6. The sensor unit casing 46 is mounted in a position exactly aligned with the sensor unit casing 46.

[Effect]

When the sensor unit 38 is attached to the hood 6, the fitting portion 48 formed on the casing 46 is fitted into the opening 43 provided in the side wall 6a of the hood 6. The casing 46 includes a wall temperature detection sensor 42 and an air temperature sensor 4.
1 and the humidity sensor 45 are integrated, so if the casing 46 is attached to the hood 6 in this way, these sensors 42, 41,
45 can be easily attached to the hood 6.

Further, as described above, since the casing 46 is attached to the hood 6 while fitting the fitting portion 48 provided on the casing 46 into the opening 43 formed in the hood 6, positioning for attachment is easy. , and can be done reliably. Therefore, when the casing 46 is mounted on the hood 6 in this manner, the wall temperature sensor 42 can be easily inserted into the wall temperature measurement hole 42.

〔Example〕

First, in FIG. 2, 1 is an incubator, 2 is an incubation room, and 3 is an air supply path. As shown in Fig. 3, the nursery room 2 is provided to protect and raise physically immature infants 4, such as premature infants, in a suitable environment isolated from the outside world. A bed 5 on which the body 4 lies is surrounded by a hood 6 made of transparent acrylic resin.

The air supply path 3 is provided to supply air suitable for the protection and growth of infant bodies 4 such as premature infants housed in the nursery room 2, and is shown on the right side in FIG. An air merging chamber 30, a heating chamber 31, a humidity adjusting section 32, and a mixing chamber 105 are provided in this order from the upstream section 27 side shown on the left side to the downstream section 28 side shown on the left side. The air confluence room 30 is the nursery room 2
It communicates with the nursery room 2 through an air outlet 25 formed near one end of a partition plate 23 that partitions the air supply path 3 and the air supply path 3 . Further, the mixing chamber 105 provided at the downstream end of the air supply path 3 is connected to the partition plate 2.
3 is connected to the nursery room 2 through an air inlet 24 formed near the other end.

As shown in FIG. 3, a circulation fan 34 is disposed in the air merging room 30, and this circulation fan 34 sucks air from the nursery room 2 through the air outlet 25, and also draws air from the nursery room 2 through the air outlet 25. It has the function of sucking fresh air from outside through a through hole 35 (see Fig. 2) provided in the inner wall surface 30a of the chamber 30, merging the air, and sending it into the heating chamber 31 provided on the downstream side. There is.

An electric heater 36 is disposed in the heating chamber 31, and the air sent from the air merging chamber 30 side is heated by the electric heater 36 as necessary, and then heated to a humidity adjusting section provided on the downstream side 28. Sent to 32.

The humidity adjusting unit 32 is directly connected to the mixing chamber 10 without humidifying the air flowing from the upstream side.
5 and an opening 65 provided in this dry passage 60 as shown in FIG. This humidification passage 67
A wet passage 61 is provided for passing the humidified air from the opening 66 to the mixing chamber 105.

The dry passage 60 and the humidification passage 61 are used to adjust whether the air sent to the mixing chamber 105 is humidified or is passed through the mixing chamber 105 without being humidified.
This is done by sliding a sliding humidity adjusting plate 102a provided across openings 100 and 101 formed at the downstream end of the .

The air that has flowed into the mixing chamber 105 through the dry passage 60 or the wet passage 61 is sufficiently mixed in the mixing chamber 105 to have a uniform humidity, and then flows into the nursery room 2 from the air inlet 24. Supplied.

The incubator 1 supplies air whose temperature and humidity are controlled into the nursery room 2 as described above. Therefore, in order to control the supplied air to the optimum temperature and humidity for the protection and growth of the infant body 4 housed in the nursery room 2, it is necessary to adjust the temperature and humidity inside the nursery room 2,
Alternatively, it is necessary to accurately detect the wall temperature of the hood 6.

The incubator temperature and humidity measuring device of this example is as follows:
Wall temperature sensor 42 for measuring wall temperature of hood 6
A room temperature sensor 41, which is a temperature sensor for measuring the temperature inside the nursery room 2, and a humidity sensor 45, which is used to measure the humidity inside the nursery room 2, are each installed in a long and narrow box as shown in FIG. A casing 4 shaped like
6 to form a single sensor unit 3
8. Each sensor 42, 4
Reference numerals 1 and 45 are conventionally known thermistors.

On the front surface 46a of the casing 46, a first
As shown in the figure, a protruding fitting part 48 is formed, and the humidity sensor 45 and room temperature sensor 41 are attached to this fitting part 48. This fitting part 4
An engagement groove 52 having a T-shaped cross section is formed on the top 8, and a water bottle 53 can be attached thereto.

This water pot 53 is for storing water 55 for moistening a towel holder 54 hung on the humidity sensor 45, and has a U-shaped support arm 56.
It is suspended so that it can swing freely. An engaging flange 57 having a T-shaped cross section is formed on the support arm 56, and the engaging flange 57 is connected to the sensor unit 38.
By inserting the water bottle 53 into an engaging groove 52 formed on the fitting part 48, the water bottle 53 can be swingably attached to the fitting part 48. Since the water bottle 53 is thus swingably attached to the fitting part 48 of the sensor unit 38, the hood 6 can be moved upwardly about the hinge 37 as shown by the dashed line in FIG. Even when it is rotated and opened, the water bottle 53 can always be suspended along the vertical line. Therefore, hood 6
When the water bottle 53 is opened in this way, or when it is closed from an open state, the water 55 contained in the water bottle 53 will not spill out.

As shown in FIG. 1, the wall temperature sensor 52 is attached to the rear end of the front surface 46a where the fitting portion 48 of the sensor unit 38 is formed so as to protrude substantially perpendicularly to the front surface 46a. This is the rear wall 6b of the hood 6 into which this wall temperature sensor 42 is inserted.
This is because it is formed substantially perpendicular to the side wall 6a to which the casing 46 is attached.

One connection cord 4 from the main body casing 46
A signal transmission line 41a, which is connected to the room temperature sensor 41, the wall temperature sensor 42, and the humidity sensor 45 attached to the main body casing 46;
Each of 42a and 45a is as shown in FIG.
They are collected in this connection code 49. The connection cord 49 is connected to the main body casing 46.
It extends from to the control section of the incubator main body.

As shown in FIGS. 1 and 4, the casing 4 of the sensor unit 38 is attached to the side of the hood 6 to which the sensor unit 38 configured in this manner is attached.
Opening 4 for fitting the fitting part 48 provided in 6
3 and a wall temperature measurement hole 44 into which a wall temperature sensor 42 is inserted. This wall temperature measurement hole 4
4 is formed on the lower right side of the rear wall 6b of the hood 6, and is formed so that the wall temperature sensor 42 can be inserted straight into the interior along the wall surface of the rear wall 6b. There is. On the other hand, the opening 43 is formed in the side wall 6a which is perpendicular to the rear wall 6b in which the wall temperature measurement hole 44 of the hood 6 is formed, and is formed in the side wall 6a of the hood 6. It is sized and shaped to allow the portion 48 to fit snugly therethrough. 1 and 4, the fitting part 4
8 and the opening 43 are each formed into an oval shape. This opening 43 allows the wall temperature sensor 42 attached to the casing 46 of the sensor unit 38 to be inserted into the rear wall of the hood 6 when the fitting part 48 of the sensor unit 38 is fitted into the opening 43.
It is formed at a position where it can just penetrate into the wall temperature measuring hole 44 formed in b.

As shown in FIG. 1, a pair of bolt insertion holes 50 are formed in the casing 46 of the sensor unit 38, and a pair of bolt insertion holes 50 are formed in the side wall 6a of the hood 6 to which the casing 46 is attached. Female threaded portions 51 are formed at corresponding positions, respectively. Thereby, the casing 46 can be easily fixed to the side wall 6a using the bolts 47.

FIG. 3 shows a state in which a skin temperature sensor 58 for measuring the skin temperature of a baby 4 housed in the nursery room 2 is attached. This skin temperature sensor 58 is inserted into the nursery room 2 through a small circular opening 6c formed approximately in the center of the upper wall of the hood 6. As shown in FIGS. 1 and 4, the connection cord 58a connected to the skin temperature sensor 58 is connected to the casing 4 of the sensor unit 38 by a connector 59 attached to its end.
It is now possible to connect to 6. The signal from the skin temperature sensor 58 is sent via the sensor unit 38 to the control section of the incubator main body via a single cord 49.

As explained above, in this embodiment, the room temperature sensor 41, the wall temperature sensor 42, the humidity sensor 45
is integrally incorporated into the casing 46 to form a single sensor unit 38. Therefore, these plurality of sensors can be easily attached to and removed from the hood 6 at the same time.

In the above embodiment, the skin temperature sensor 58
The connector 59 of the sensor unit 38 can be connected to the casing 46 of the sensor unit 38. For this purpose, the connection cord 58a of this skin temperature sensor 58 is
However, it is not necessary to connect the connector 59 to the sensor unit 38.

[Effect of idea]

As mentioned above, the present invention combines a wall temperature sensor for measuring the wall temperature of the hood, an air temperature sensor for measuring the temperature inside the nursery room, and a humidity sensor for measuring the humidity inside the nursery room into one. In addition to being integrated into the casing to form a single sensor unit,
A fitting portion is protruded from one side of the casing, and an opening for fitting the fitting portion and a wall temperature measurement hole for allowing the wall temperature sensor to enter the inside of the wall are respectively formed on the hood. did. For this purpose, simply install this single sensor unit on the hood.
Multiple sensors can be easily attached to the hood. Furthermore, since the incubator can be removed easily as well, cleaning of the incubator is easy.

These have made it easy to install multiple sensors on the hood.
When controlling the temperature and humidity of the air supplied to the nursery room, it is now possible to measure the actual temperature inside the nursery room, and it is also possible to perform optimal temperature control by taking into account the wall temperature of the hood. Now I can do it.

In addition, a fitting part is provided protrudingly on one side of the casing, and an opening is formed on the wall surface to which the casing is attached to fit with the fitting part, so that the casing can be mounted while accurately positioning it at the correct position. This makes it possible to always perform accurate measurements under the same conditions.

In addition, a wall temperature measurement hole is provided on the wall of the hood that penetrates into the interior along this wall surface, and a wall temperature sensor is inserted into this wall temperature measurement hole to measure the outside temperature and the outside temperature. The wall temperature can be accurately measured without being affected by the external environment such as heat radiation from the wall.

[Brief explanation of the drawing]

The attached drawings show one embodiment of the present invention, in which Fig. 1 is a perspective view of a sensor unit, Fig. 2 is an exploded perspective view of the entire incubator, and Fig. 3 is a main part taken along line A-A in Fig. 2. The sectional view and FIG. 4 are partially enlarged views showing the opened and closed states of the hood. In addition, in the symbols used in the drawings, 2...Nursery room, 38...Sensor unit, 41...Room temperature sensor (air temperature sensor), 42...Wall temperature sensor, 43...
... opening, 44 ... wall temperature measurement hole, 45 ... humidity sensor, 46 ... casing, 48 ... fitting part.

Claims (1)

[Scope of Claim for Utility Model Registration] In a device for measuring the temperature and humidity of an incubator in which a nursery room for accommodating a baby is surrounded by a hood that can be opened and closed, on one wall of the hood: Another part of the hood has a wall temperature measurement hole that penetrates into the wall along the wall surface of the wall portion, and a wall surface in the vicinity of the wall temperature measurement hole and in a direction substantially perpendicular to the wall temperature measurement hole. An opening is provided in the wall, and a rod-shaped wall temperature sensor is inserted into the wall temperature measurement hole, an air temperature sensor for measuring the temperature inside the nursery room, and a humidity sensor for measuring the humidity inside the nursery room. are assembled into a single casing to form a single sensor unit, and the casing of this sensor unit is provided with a fitting portion that fits into the opening of the hood, and the At least the wall temperature sensor is provided to protrude from the surface of the casing, and when the fitting portion of the sensor unit is fitted into the opening of the hood and installed, the wall temperature sensor simultaneously measures the wall temperature. A device configured to be inserted into a hole.