JP2019137457A - Constant-temperature transportation box and constant-temperature transportation method - Google Patents

Abstract

To provide a constant-temperature transportation box in which the temperature in the box can be easily known and transportation work is easy and a constant-temperature transportation method using the constant-temperature transportation box.SOLUTION: A constant-temperature transportation box 1 includes a box body 2 that is opened upward, a lid 3 that is detachably mounted on the box body 2, and a shelf 4. The shelf 4 includes a shelf plate 5 and legs 6 that are suspended downward from four corners of the shelf plate 5. A sensor unit 7 having a temperature sensor and a transmitter is attached to the wall surface. The lower side of the shelf plate 5 is a storage space for the article A, and the upper side of the shelf plate 5 is an arrangement space for a heat storage material 10.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a constant temperature transport box and a constant temperature transport method using the constant temperature transport box.

  Constant-temperature shipping boxes containing heat storage materials are used for transporting foods and pharmaceuticals. Patent Document 1 describes a cold storage container that has a bottom surface and four side walls as a constant temperature transport box, and each side wall can fall on the bottom surface.

  In Patent Document 2, a storage container is disposed in a cold storage box, a cold storage object is disposed in the storage container, a heat storage material is disposed so as to surround the storage container, and dry ice is further disposed in the cold storage box. It is described to do. In the experimental example of Patent Document 2, the measurement result of the temperature change in the box is described, but there is no description about how the temperature was measured.

  Patent Document 3 describes that a heat storage material is disposed at the bottom of a box and an article is placed thereon. The experimental example of Patent Document 3 also describes the measurement result of the temperature change in the box, but does not describe how the temperature was measured.

  Patent Document 4 describes that an inner box is disposed in a box body, a heat storage material is disposed between the box body and the inner box, and an article is accommodated in the box body. Patent Document 4 describes the result of measuring the temperature in the inner box using a data logger. However, there is a description of how to arrange the temperature sensor and how to transmit the data signal. Absent.

JP 2008-285185 A JP 2007-118972 A JP 2001-63776 A JP 2011-51632 A

  It is an object of the present invention to provide a constant temperature transport box that can easily know the temperature in the box and that can be easily transported, and a constant temperature transport method using the constant temperature transport box.

  The constant temperature transport box of the present invention is a constant temperature transport box having a temperature sensor for detecting the temperature in the box, and includes a wireless transmission means for transmitting a temperature signal detected by the temperature sensor, and the temperature sensor includes air inside the box. It is installed so that any 1 or 2 or more of temperature, thermal storage material surface temperature, wall surface temperature, and bottom surface temperature may be measured.

  In one aspect of the present invention, a shelf is provided in the box, the upper side of the shelf is an arrangement space for the heat storage material, and the lower side of the shelf is an arrangement space for the article to be transported.

  In one aspect of the present invention, the shelf includes a shelf plate and a leg that supports the shelf, and the shelf is installed such that the lower end of the leg stands from the bottom surface of the box.

  In one aspect of the present invention, the temperature sensor is installed on a wall surface in the box.

  The constant temperature transport method of the present invention accommodates articles and a heat storage material in a constant temperature transport box and transports them at a constant temperature.

  In one aspect of the present invention, the temperature of the article is estimated based on a temperature signal transmitted from the transmission unit, and it is determined whether the article temperature is within a predetermined range.

  In one aspect of the present invention, the temperature of the article is estimated based on correlation data between the temperature detected by the temperature sensor and the temperature of the article.

In one embodiment of the present invention, the predetermined range of the temperature of the article is T _{1 to} T ₂ (° C.), and the melting point of the heat storage material is (T ₁ −3) to (T ₂ −3) (° C.). .

  According to the constant temperature transport box and the constant temperature transport method of the present invention, the temperature in the constant temperature transport box is detected by the temperature sensor and the temperature data is transmitted wirelessly, so there is no need to pull out the lead wire from the constant temperature transport box, You can easily know the temperature. In addition, the carrying work of the constant temperature shipping box becomes easy.

  In one aspect of the present invention, a heat storage material and an article are directly provided by installing a shelf in a constant temperature transport box, placing an article below the shelf, and placing a heat storage material (cold storage material) on the upper side of the shelf. Is prevented from over-cooling of the article.

  In one embodiment of the present invention, based on correlation data between a temperature detected by a temperature sensor and the temperature of the article, the temperature of the article can be estimated with high accuracy without the temperature sensor directly touching the article.

It is a perspective view of the constant temperature transport box which concerns on embodiment. It is a longitudinal cross-sectional view which shows the usage example of a constant temperature transport box. It is a figure which shows an example of the correlation data of the temperature of the box main body 2 (side wall), and the temperature of the articles | goods A.

  Hereinafter, embodiments will be described with reference to FIGS.

  FIG. 1 is a perspective view of a constant temperature transport box 1 according to an embodiment. The constant temperature transport box 1 includes an open box body 2, a lid 3 that is detachably mounted on the box body 2, and a shelf 4 that is disposed in the box body 2.

  The box body 2 has a bottom plate 2a and four side walls 2b, 2c, 2d, 2e. Each of the side walls 2b to 2e is connected to the bottom plate 2a by a hinge structure, and can fall on the bottom plate 2a. Lock keys 2k for locking the side walls 2c and 2e are provided on the inner side surfaces of the side walls 2b and 2d. When the side walls 2c and 2e are pushed in with the lock key 2k pushed, the side walls 2c and 2e fall on the bottom plate 2a. Thereafter, the box body 2 is folded by causing the side walls 2b and 2d to fall down. The box body 2 is assembled by raising the side walls 2b to 2e in the reverse order.

  The box body 2 and the lid 3 are provided with a fastening mechanism (not shown) for locking the lid 3 to the box body 2 after the lid 3 is put on the box body 2. As the box body 2 and the lid 3, for example, those having a heat insulating structure such as a foamed resin filled inside a synthetic resin shell are suitably used.

  The shelf 4 includes a shelf plate 5 and legs 6 that are suspended downward from four corners of the shelf plate 5. The lower side of the shelf 5 is a storage space for the article A, and the upper side of the shelf 5 is an arrangement space for the heat storage material 10. From the viewpoint of efficiently circulating air, it is preferable that the shelf plate 5 has a large number of holes 5a penetrating in the vertical direction.

  When the article A is transported using the constant temperature transport box 1, as shown in FIG. 2, the article A is arranged on the bottom plate 2a, the shelf 4 is installed, and the sensor unit 7 having the temperature sensor and the wireless transmitter is connected to the side wall 2b. Attach to any point of ~ 2e. Thereafter, the heat storage material 10 is placed on the upper side of the shelf board 5, covered with the lid 3, and the lid 3 is fastened to the box body 2. The person in charge of transportation delivers the constant temperature transport box 1 on a loading platform of a delivery vehicle, for example.

  The temperature in the box body 2 is detected by the temperature sensor of the sensor unit 7, and the temperature signal is wirelessly transmitted according to the short-range wireless communication standard or the like, for example, received by the portable terminal of the person in charge of transportation. In this case, it is sufficient if the range of radio waves from the transmitter is about several meters, but the present invention is not limited to this. In this portable terminal, correlation data between the temperature in the box body 2 detected by the temperature sensor of the sensor unit 7 and the temperature of the article A is stored, and the detected temperature is converted into the article temperature and displayed. It is preferable to capture application software to be stored in the memory.

The heat storage material 10 has a melting point in the temperature range of (T ₁ -3) to (T ₂ -3) (° C.) with respect to the target temperature range T _{1 to} T ₂ (° C.) of the article A. Is preferred. By using the heat storage material 10 including the heat storage material having such a melting point, the temperature of the article A can be reliably maintained in the range of T _{1 to} T ₂ .

  In this embodiment, as shown in the figure, the sensor unit 7 is an intersection corner of the side walls 2b and 2c, near the middle in the depth direction of the box body 2, and an intersection corner of the side walls 2c and 2d. Near the middle of the box body 2 in the depth direction, at the intersection corners of the side walls 2d and 2e and near the middle of the box body 2 in the depth direction, and at the intersection corners of the side walls 2e and 2b and the box body 2 It is installed in at least one of the four locations in the middle of the depth direction. The reason why it is preferable to set the installation position of the sensor unit 7 in this way will be described next.

  When the melting point of the heat storage material is lower than room temperature, the air (cold air) cooled by the heat storage material 10 descends from the periphery of the heat storage material 10 and stays at the bottom in the box body 2. Also, most of the cool air descends through the holes 5a. The air heated in contact with the article A rises along the side walls 2b to 2e. In addition, outside air that enters through a slight gap between the box body 2 and the lid 3 stays in the vicinity of the inner surfaces of the side walls 2 b to 2 e in the box body 2. For this reason, the side walls 2 b to 2 e in the box body 2 are zones with relatively high temperatures even in the box body 2. Therefore, the temperature detected by the temperature sensor of the sensor unit 7 is higher than the temperature of the article A itself. Therefore, the above correlation data is created in advance, and the actual temperature of the article A can be estimated with high accuracy based on this correlation data. At this time, the air heated in contact with the article A and the outside air entering from a slight gap between the box body 2 and the lid 3 are particularly the crossing corners of the side walls 2b and 2c and the crossing corners of the side walls 2c and 2d. Part, the crossing corners of the side walls 2d and 2e, and the crossing corners of the side walls 2e and 2b, and stays at a location where the height is intermediate between the bottom and the lid. For this reason, the sensor unit 7 is located at the intersection corner of the side walls 2b and 2c and near the middle in the depth direction of the box body 2, and at the intersection corner of the side walls 2c and 2d and the depth of the box body 2. Near the middle in the vertical direction, at the intersection corner of the side walls 2d, 2e and near the middle in the depth direction of the box body 2, and at the intersection corner of the side walls 2e, 2b and in the depth direction of the box body 2. It is particularly preferable to arrange at least one of the four locations in the vicinity of the middle.

  Detecting the temperature with such high accuracy is suitable for constant temperature transportation of pharmaceuticals and foods whose quality may deteriorate due to supercooling.

It is possible to carry out constant temperature transportation without deteriorating the quality of the article A by recording the change over time of the temperature of the article A and carrying out the constant temperature transportation while confirming that the article A is always in the predetermined range T _{1 to} T _2. it can.

  FIG. 3 shows temperature correlation data between the box body 2 and the transported body when water is used as the transported body.

  The temperature of the transported body (water) always shows a lower temperature than each part of the intersection corner of the side wall having the highest temperature in the box body 2 within the measurement time. By obtaining such correlation data in advance, the temperature of the transported object can be estimated from the temperature in the box without directly measuring the temperature of the transported object.

  The above-described embodiment is an example of the present invention, and the present invention may be configured other than the above. For example, in the present invention, the sensor unit may be installed so as to measure the surface temperature of the heat storage material 10, the surface temperature of one or more side walls 2b to 2e, or the surface temperature of the upper surface of the bottom plate 2a. Moreover, you may install a sensor unit so that temperature may be measured in two or more places of these places.

1 constant temperature transport box 2 box body 3 lid 4 shelf 5 shelf board 6 leg 7 sensor unit

Claims (8)

In a constant temperature transport box having a temperature sensor for detecting the temperature in the box,
A wireless transmission means for transmitting a temperature signal detected by the temperature sensor;
The temperature sensor is installed so as to measure any one or more of an air temperature inside the box, a heat storage material surface temperature, a wall surface temperature, and a bottom surface temperature.   The constant temperature transport box according to claim 1, wherein a shelf is provided in the box, an upper side of the shelf is an arrangement space for a heat storage material, and a lower side of the shelf is an arrangement space for an article to be transported. . The shelf has a shelf board and legs that support the shelf,
The constant temperature transport box according to claim 2, wherein a shelf is installed so that a lower end of the leg stands from a bottom surface of the box.   The constant temperature transport box according to any one of claims 1 to 3, wherein the temperature sensor is installed on a wall surface in the box.   A constant temperature transport method for storing articles and a heat storage material in the constant temperature transport box according to any one of claims 1 to 4 and transporting the articles at a constant temperature.   6. The constant temperature transportation method according to claim 5, wherein the temperature of the article is estimated based on a temperature signal transmitted from the transmission means, and it is determined whether the article temperature is within a predetermined range.   7. The constant temperature transportation method according to claim 6, wherein the temperature of the article is estimated based on correlation data between a temperature detected by the temperature sensor and a temperature of the article. Claims wherein the predetermined range of temperature of the article is _T 1 ~T ₂ (℃), melting point of the heat storage material, characterized in that a _{(T 1 -3) ~ (T} 2 -3) (℃) 6 or 7 constant temperature transportation method.

Images