JP2008138961A - Cooling box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cooling box preventing dew condensation and cooling failure due to partial opening, and capable of notifying anomaly to a user by detecting a partial opened state of a storage box door without storage box modification in a present cooling box. <P>SOLUTION: The cooling box comprises a storage box 101, and a cooling unit 104 cooling the storage box 101. The storage box 101 is provided with the storage box door 103. The cooling unit 104 is provided with an infrared ray type internal temperature sensor 12 carrying out temperature detection of the storage box 101, an infrared ray type outside air temperature sensor 105 installed in the storage box 101 to detect a temperature, a controller 110 controlling the temperature in the storage box 101, and an anomaly communicating means 102 for notifying an abnormal state. Detection is carried out by the controller 110 from signals from the infrared ray type outside air temperature sensor 105 and the infrared ray type internal temperature sensor 12, emergency operation is carried out by the cooling unit 104, and a partial opened state of the storage box door 103 is notified by the anomaly communicating means 102. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a cool box used for storing and storing rice grains and the like.

  2. Description of the Related Art Conventionally, a cold storage used for storing and storing this kind of rice grains and the like is known in which a cooling unit is installed on the storage. The internal temperature control of the storage is performed by a refrigerant circuit and a control device arranged in the cooling unit. In addition, the storage door employs a structure in which magnet packing is attached and the cool air from the cooling unit does not leak (for example, see Patent Document 1).

  FIG. 6 is a perspective view of a cool box in which a conventional cooling unit described in Patent Document 1 is mounted. FIG. 7 is a configuration diagram of a cooling unit mounted in a conventional cool box described in Patent Document 1. FIG. 8 is a diagram illustrating the behavior of the internal temperature when the storage door is closed and the control operation of the compressor. FIG. 9 is a control operation diagram of the compressor and the behavior of the internal temperature when the storage door is half open when the outside air temperature is higher than the compressor operating temperature. FIG. 10 is a control operation diagram of the compressor and the behavior of the internal temperature when the storage door is half-opened when the outside air temperature is near the compressor operating temperature.

  As shown in FIGS. 6 and 7, the cool box 1 includes a storage box 2 and a cooling unit 3. The storage 2 is provided with a storage door 4, and the storage door 4 is provided with a magnet packing (not shown) for preventing cold air leakage.

  The cooling unit 3 includes a compressor 6, a condenser 7, a condenser blower 8, a capillary tube 9, an evaporator 10, an evaporator blower 11, an internal temperature sensor 12, and a control device 13. It is configured.

  Operation | movement of the cooling unit mounted in the conventional cool box comprised as mentioned above is demonstrated.

First, the internal temperature in the storage 2 is detected by the internal temperature sensor 12, and electrical signals are sent from the control device 13 provided in the cooling unit 3 to the compressor 6, the condenser blower 8, and the evaporator blower 11. The method of sending and controlling so that it may become set temperature in each warehouse is employ | adopted.
JP 2002-277139 A

  However, the conventional configuration has a problem that when the storage door is continuously opened, air outside the storage enters into the storage and condensation or non-cooling occurs.

  The present invention solves the above-described conventional problem, and provides a cold storage that prevents condensation and non-cooling in the storage even when the storage door is continuously opened in a half-open state, and notifies the user by means of abnormal communication. The purpose is to do.

  In order to solve the above-described conventional problems, the storage unit includes a storage unit, a cooling unit that cools the storage unit, and an abnormal communication unit that notifies an abnormal state. The storage unit includes a storage door, and the cooling unit includes the Infrared type temperature sensor for detecting the temperature of the storage, an infrared outside temperature sensor for detecting the temperature at which the storage is installed, a control device for controlling the temperature in the storage, and for cooling the inside of the storage A cooler, a blower for cooler, a compressor, a radiator, and a blower for radiator, and when the door of the storage is open, the cooling unit is stopped.

  Thereby, dew condensation in the storage can be suppressed, an uncooled state can be prevented, and the user can be notified by the abnormal contact means.

  The cool box of the present invention can be easily installed in a storage room such as the current cool box, and when the door of the store room is open without remodeling the store room, the condensation in the store room is suppressed, and it is in an uncooled state. By preventing this, it is possible to prevent the deterioration of the quality of the crops due to the dew condensation water, and it is possible to easily notify the user by the abnormality communication means.

  Invention of Claim 1 consists of a storage, the cooling unit which cools the said storage, and the abnormal communication means which notifies an abnormal condition, The said storage is provided with the storage door, and the said cooling unit is the said storage Infrared type temperature sensor for detecting the temperature inside, an infrared type outside air temperature sensor for detecting the temperature at which the storage is installed, a control device for controlling the temperature in the storage, and for cooling the inside of the storage It is possible to prevent dew condensation in the storage by stopping the cooling unit when the storage door is open when the storage door is open. It is possible to easily notify the user by means of abnormal communication.

  According to a second aspect of the invention, in the first aspect of the invention, when the door of the storage is open, the cooler blower is operated, so that condensation in the storage can be prevented and no cooling is caused. Can prevent the deterioration of crop quality.

  The invention according to claim 3 is the invention according to claim 1, wherein when the door of the storage is open, the rotation of the fan for the cooler is controlled to prevent condensation in the storage. Non-cooling can be prevented, quality degradation of crops can be prevented, and energy can be saved with light load.

  The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the infrared type internal temperature sensor and the infrared type outside air temperature sensor are stored in a single infrared type temperature sensor. By detecting the temperature inside and outside, it is possible to accurately grasp the situation where the door of the storage is open, and it is possible to prevent excessive notification.

  According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the abnormal communication means can notify the user with certainty by notifying by sound.

  According to a sixth aspect of the present invention, in the invention according to any one of the first to fifth aspects, the abnormality communication means can notify the user reliably by visual notification.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings, but the same reference numerals are given to the same configurations as those of the conventional examples or the embodiments described above, and detailed description thereof will be omitted. In addition, this invention is not limited by this embodiment.

(Embodiment 1)
FIG. 1 is a perspective view of a cool box in Embodiment 1 of the present invention. FIG. 2 is a configuration diagram of the cooling unit in the embodiment. FIG. 3 is a characteristic diagram showing the relationship between the outside air temperature of the cool box and the operating rate of the cooling unit in the same embodiment. FIG. 4 is a characteristic diagram showing the internal temperature and the operation behavior of the cooling unit in the same embodiment.

  In FIG. 1, the cool box 1 includes a storage room 101, a storage door 103 located on the front surface of the storage room, and a cooling unit 104 disposed on the upper surface of the storage room 101, and the internal temperature provided on the storage door 103. The display device that performs the display detects the half-open state of the storage door 103 and is also used as the abnormality communication means 102, and the cooling unit 104 is an infrared ray that detects the outside air temperature where the cool box 1 is installed. An outside temperature sensor 105 is provided.

  2, the cooling unit 104 operates the cooling unit 104 via the infrared type internal temperature sensor 12, the infrared type external temperature sensor 105 installed on the exterior of the cooling unit 104, and the infrared type internal temperature sensor 12. And a control device 110 that monitors and controls the behavior.

  In FIG. 3, the horizontal axis represents the outside air temperature, and the vertical axis represents the operating rate of the cooling unit 104.

  In FIG. 3, the solid line indicates the outside temperature when the storage door 103 is closed and the operating rate of the cooling unit 104, and the broken line indicates the outside temperature when the storage door 103 is half-opened and the operating rate of the cooling unit 104, Represents a threshold value for determining whether the storage door 103 is half open.

  From the relationship between the outside air temperature when the storage door of FIG. 3 is closed and the outside air temperature when the storage door is half-opened and the operation rate of the cooling unit 104, the operation behavior of the cooling unit 104 is also observed when the outside air temperature is near the compressor operating temperature. In order to distinguish between when the storage door at each temperature is closed in the control device 110 to be monitored and controlled, and when the storage door is half open, a threshold is provided to distinguish the half open state of the storage door 103.

  When the control device 110 determines that the storage door 103 is in a half-open state after a certain period of time after the defrosting of the cooling unit 104, as in the internal temperature and the operation behavior of the cooling unit 104 in FIG. The cooling unit 104 is stopped for 5 minutes, and then the operation of the cooling unit 104 is resumed for 5 to 15 minutes in order to dry the condensation formed in the storage 101. By repeating this operation in order to suppress the occurrence of dew condensation in the storage box 101, it is possible to suppress the quality deterioration of the crops stored in the storage box 101.

  The display device that displays the internal temperature from the control device 110 to the storage door 103 can be used as the abnormal communication means 102 to notify the user by displaying the abnormal temperature display.

  Moreover, when restarting the operation of the cooling unit 104, by operating only the cooler blower 111, dew condensation in the storage can be prevented and non-cooling can be prevented, and deterioration of the quality of crops can be prevented.

  Further, when only the cooler blower 111 is controlled in rotation speed, dew condensation in the storage 101 can be prevented and non-cooling can be prevented, quality degradation of crops can be prevented, and energy can be saved with light load.

  In addition, the abnormal communication means 102 can be surely notified to the user by a buzzer sound or the like.

(Embodiment 2)
Next, the cool box 1 according to Embodiment 2 of the present invention will be described with reference to FIG.

  FIG. 5 shows that one infrared type temperature sensor 106 can detect an infrared type outside temperature sensor 105 that detects the outside temperature in which the cool box 1 is placed and an infrared type temperature sensor 12 that detects the temperature in the storage. It is an example of the cold storage 1 made into.

  In FIG. 5, when the storage door 103 is closed, the infrared temperature sensor 106 detects the inside temperature of the storage 101, and when the storage door 103 is open, the infrared temperature sensor 106 puts the storage 101. An infrared temperature sensor 106 is installed at a position where it can detect the temperature at which it is detected.

  In such a case, when the storage door 103 is open, the infrared temperature sensor 106 grasps changes in the storage temperature of the storage 101 and the installation temperature of the storage 101, and whether or not a person has to put in and out the storage work. By the control device 110, it is possible to prevent an excessive notification such as an abnormality display or a buzzer sound as the abnormality communication means 102.

  As described above, the cool box according to the present invention can be applied to uses such as a showcase and a commercial refrigerator.

The perspective view of the cool box in Embodiment 1 of this invention Configuration diagram of cooling unit in the embodiment The characteristic figure showing the relation between the outside temperature of the cool box and the operation rate of the cooling unit in the same embodiment Characteristic diagram showing internal temperature and operation behavior of cooling unit in the same embodiment The perspective view of the cold storage in Embodiment 2 of this invention Perspective view of a cool box equipped with a conventional cooling unit Configuration diagram of a cooling unit installed in a conventional cool box Behavior of internal temperature when storage door is closed and control operation diagram of compressor Behavior of the internal temperature when the storage door is half open when the outside air temperature is higher than the operating temperature of the compressor and the control operation diagram of the compressor Behavior of the internal temperature when the storage door is half-opened when the outside air temperature is close to the compressor operating temperature, and control operation diagram of the compressor

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cold storage 12 Infrared type | mold inside temperature sensor 101 Storage 102 Abnormal communication means 103 Storage door 104 Cooling unit 105 Infrared type external temperature sensor 106 Infrared type temperature sensor 110 Control apparatus 111 Fan for cooler

Claims (6)

  A storage unit, a cooling unit for cooling the storage unit, and an abnormal communication means for notifying an abnormal state, wherein the storage unit includes a storage door, and the cooling unit detects the temperature in the storage unit. A temperature sensor; an infrared-type outside air temperature sensor that detects a temperature at which the storage is installed; a control device that controls the temperature in the storage; a cooler used to cool the storage; and a fan for the cooler And a compressor, a radiator, and a radiator fan, and the cooling unit is stopped when the door of the storage is open.   The cool box according to claim 1, wherein the cooler blower is operated when the door of the storage is open.   The cold storage box according to claim 1, wherein the cooling fan is controlled to rotate when the door of the storage is open.   The cold storage box according to any one of claims 1 to 3, wherein the infrared type internal temperature sensor and the infrared external temperature sensor detect the temperature inside and outside the storage with one infrared type temperature sensor.   The cold storage according to any one of claims 1 to 4, wherein the abnormality communication means notifies by sound.   The cold storage box according to any one of claims 1 to 5, wherein the abnormality communication means notifies by visual inspection.

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