JP2010196936A - On-vehicle cooling cabinet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an on-vehicle cooling cabinet having a simple configuration and efficiently and inexpensively cooling stored articles. <P>SOLUTION: Inside of a heat insulating casing 2 including opening/closing lids 10, 11 on the upper opening is partitioned into a refrigerating chamber 4 and a freezing chamber 5. A cool storage plate holding part 7 for holding cool storage plates 6 is provided within the freezing chamber 5, and a fan 8 for supplying cold air within the freezing chamber 5 to the refrigerating chamber 4 is provided. The cool storage plate holding part 7 includes a plurality of air-permeable cool storage plate holding compartments formed to hold the plurality of cool storage plates 6 with the same shape. The cool storage plates 6 are cooled by a cooling facility using nighttime electric power. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an in-vehicle cooling cabinet, and more particularly to an in-vehicle cooling cabinet suitable for delivering food or the like while keeping it at a low temperature.

For example, when a small food is delivered from a distribution center to a store or a personal home of a courier while maintaining a low temperature state, a small delivery vehicle equipped with an in-vehicle cooling cabinet is generally used. . In-vehicle cooling cabinets that cool the interior of an in-vehicle refrigerator driven by an engine or battery, not only the weight of the in-vehicle refrigerator, but also the battery is large and heavy. There is a problem that a large load is applied and the life of the battery is remarkably shortened. In addition, as a part of preventing air pollution and global warming due to vehicle exhaust gas, a method of stopping the engine at the time of parking and stopping when loading and unloading luggage (so-called idling stop) is practiced. However, since the on-vehicle refrigerator is also stopped together with the engine, it has become difficult to keep the inside of the cabinet constant at a low temperature in a delivery vehicle that frequently loads and unloads luggage.
Therefore, in recent years, it has been performed to cool the inside of the cabinet by introducing dry ice grains as a cooling source into the cabinet (for example, see Patent Document 1).

JP 2000-106858 A

  However, when dry ice grains are used as a cooling source, new dry ice grains are used every time, so a large amount of dry ice grains must be kept in a low temperature state in the distribution center. In addition to the grain consumption cost, there were also problems in equipment cost and energy cost.

  Therefore, an object of the present invention is to provide an in-vehicle cooling cabinet that has a simple configuration and can efficiently cool stored articles at low cost.

  In order to achieve the above object, the in-vehicle cooling cabinet of the present invention partitions the inside of a heat insulation box having an open / close lid on the top opening into a refrigerator compartment and a freezer compartment, and a cold storage material is formed in a plate shape in the freezer compartment. A cold storage plate holding unit for holding the cold storage plate is provided, and a fan for supplying cold air in the freezer compartment to the refrigerator compartment is provided.

  Furthermore, it is preferable that the cold storage plate holding part in the in-vehicle cooling cabinet of the present invention has a plurality of cold storage plate holding sections capable of holding the same shape of the cold storage plate and having air permeability, and the cold storage plate is It is preferable that the power is cooled by a cooling facility in a distribution center using nighttime power.

According to the in-vehicle cooling cabinet of the present invention, the amount of the cold storage plate to be held in the cold storage plate holding portion is selected according to the conditions such as the amount of articles to be cooled, the temperature, the cooling time, etc., and stored in the cabinet. The article can be cooled to a predetermined temperature for a predetermined time.
For example, in the case of small-sized delivery vehicles that deliver products to private homes, the amount of delivery of frozen and refrigerated foods is extremely large during trays and at the end of the day. If it is cooling by, it becomes possible to respond appropriately to the ambient temperature load and the amount to be delivered.
Moreover, since it divides into the refrigerator compartment and the freezer compartment, a refrigerator and frozen goods can be delivered simultaneously by one vehicle-mounted cooling cabinet. Furthermore, by supplying an appropriate amount of cold air in the freezer compartment to the refrigerator compartment, the number of cold storage plates to be used can be reduced, and only the fans that consume less power are driven. The freezer compartment and the refrigerator compartment can be cooled to a predetermined temperature without imposing a heavy burden on the car battery. In addition, by making the cold storage plate holding portion into a shape that can hold the same shape of the cold storage plate and has a plurality of cold storage plate holding sections having air permeability, a necessary and sufficient amount of the cold storage plate can be easily installed in the cabinet. Can be installed. Furthermore, the cost required for cooling can be reduced by cooling the regenerator plate with the cooling facility of the distribution center using nighttime power.

It is a cross-sectional front view which shows one example of the vehicle-mounted cooling cabinet of this invention. It is also a plan view. It is a side view similarly. It is a perspective view which shows an example of a cool storage board holding | maintenance part.

  The in-vehicle cooling cabinet 1 shown in the present embodiment divides the inside of a heat insulating box 2 having an opening on the upper surface into a left refrigerator compartment 4 and a right freezer compartment 5 in FIG. 5 is provided with a cold storage plate holder 7 for holding the cold storage plate 6 and a duct 9 provided with a fan 8 for supplying a part of the cold air in the freezer compartment 5 to the refrigerator compartment 4.

  The cold storage plate 6 may be a plate formed of a known solid cold storage material or a plate having the same shape as a plate formed by enclosing a known liquid cold storage material in a flat container. The kind of the regenerator material and each dimension of the regenerator plate 6 can be appropriately set according to the size of the heat insulating box 2 and the required cooling capacity. As shown in FIG. 4, the cold storage plate holding portion 7 for holding the cold storage plate 6 includes a plurality of partition members 7a and a bottom member 7b made of a plate member having a large number of air holes or a member having air permeability such as a net-like body. And the back member 7c form a plurality of cold storage plate holding sections, and the shape of the cold storage plate 6 can be held, and the cold storage plate 6 can be attached to and detached from the upper part or front surface of the cold storage plate holding part 7. It is formed as follows.

  The duct 9 has a cylindrical shape whose base is opened at the top of the partition plate 3, and two fans 8 driven by a battery of a delivery vehicle or other arbitrary power source are provided on the front surface of the duct 9. Is provided. By rotating the fan 8, a part of the cold air in the freezer compartment 5 cooled to a predetermined freezing temperature by the cold storage plate 6 is supplied to the refrigerating room 4, and the inside of the refrigerating room 4 is cooled to a predetermined refrigerating temperature. Is done. The fan 8 does not always rotate, but stops when the temperature of the refrigerator compartment reaches a predetermined temperature.

  At the top opening of the heat insulating box 2, an article opening / closing lid 10 for taking in and out articles stored in the inside of the refrigerator compartment 4 and the freezer compartment 5 is provided in the front. A cold storage plate opening / closing lid 11 is provided. Each of the lids 10 and 11 may be capable of opening and closing the refrigerator compartment 4 side and the freezer compartment 5 side independently, or may be capable of opening and closing both chambers as a whole. An article and a cold storage plate may be taken in and out. The opening / closing method may be a sliding door type in addition to opening / closing by a hinge, and is arbitrary.

  When using the vehicle-mounted cooling cabinet formed in this way, for example, when delivering articles such as frozen foods or cryopreserved foods from a distribution center to a plurality of stores or courier personal homes, first, a cold storage plate 6 is in a state of being cooled to a predetermined temperature in advance by a cooling facility of a distribution center using nighttime power. Next, from the various conditions such as the amount of articles stored in the refrigerator compartment 4 and the freezer compartment 5, the cooling temperature, and the time required for delivery, the number of the cold storage plates 6 used is selected and the required number of cold storage plates is stored in the cold storage plate holder 7. 6 is installed.

  After a predetermined article is stored in the refrigerator compartment 4 and the freezer compartment 5, delivery to each store or home delivery is performed. During the movement of each dealer or courier to a private home, the engine is not burdened at all, and it is lighter than an in-vehicle refrigerator, so that the fuel consumption is not deteriorated. Since the delivery work at each store or courier's private home is usually completed in a short time, there is almost no burden on the battery even if the fan 8 is driven with the battery of the delivery vehicle. Moreover, even if the fan 8 is stopped for a short time, the temperature in the refrigerator compartment 4 hardly rises above the allowable temperature.

  In delivery using a small delivery vehicle, it is rare to deliver for a long time at a long distance. Therefore, it is sufficient that the cooling capacity of the cold storage plate 6 can be continued for several hours. One delivery, for example, in the morning After the delivery is completed, the cool storage plate 6 installed in the cool storage plate holding unit 7 after returning to the delivery center is replaced with a predetermined number of cool storage plates 6 stored in a state cooled to a predetermined temperature by the cooling facility of the delivery center. Exchange the next delivery, for example, the afternoon delivery. When the delivery of one day is completed, all the cold storage plates 6 are taken out from the cold storage plate holding unit 7, cooled to a predetermined temperature using the nighttime power in the cooling facility of the distribution center, and repeatedly used for the next day's delivery.

  Thus, since the inside of the heat insulation box 2 is divided into the refrigerator compartment 4 and the freezer compartment 5, and it forms so that the refrigerator compartment 4 may be cooled by supplying the cold air of the refrigerator compartment 5 with a fan, storage temperature When different goods such as beverages and ice cream can be delivered simultaneously by a single on-board cooling cabinet, two types of on-vehicle cooling cabinets for refrigeration and freezing are used, or two delivery vehicles are used. The cost can be greatly reduced compared to. Furthermore, by using the regenerator plate 6 that can be used repeatedly as a cooling source for the in-vehicle cooling cabinet, an in-vehicle refrigerator and a large battery become unnecessary, the weight of the delivery vehicle can be reduced, and fuel consumption can be improved. . Further, even if the engine is stopped during the delivery work at the store or the personal delivery home delivery, the temperature of the refrigerator compartment 4 and the freezer compartment 5 hardly increases, and a stable cooling state can be maintained. In particular, since a cooler that requires defrosting is not used, a stable cooling state with little temperature fluctuation can be obtained.

  Furthermore, the cooling cost installed in the distribution center can be used to cool the cold storage plate 6 using cheap nighttime power, thereby reducing the running cost required for cooling. In addition, since the number of sheets used for the cold storage plates 6 can be selected according to the travel distance and time during delivery, the amount of articles stored in the refrigerator compartment 4 and the freezer compartment 5 and the article temperature, there is no waste and the cooling equipment Effective use of the entire cooling energy, including it, can be achieved. In addition, since the cold storage plate 6 whose cooling capacity has decreased due to aging can be recovered and regenerated, it is possible to effectively use resources and to make the system friendly to the global environment.

  In addition, an auxiliary cold storage plate holding part is also provided in the refrigerator compartment, and if necessary, the refrigerator compartment can be directly cooled by the cold storage plate, for example, in the refrigerator compartment where the temperature is rising at the end of the day off. By installing the cold storage plate in the cold storage plate holding part, the refrigerator compartment can be directly cooled by the cold storage plate, so that the cooling to the predetermined temperature can be completed in a short time. The fan can also be provided on the partition plate.

DESCRIPTION OF SYMBOLS 1 In-vehicle cooling cabinet 2 Heat insulation box 3 Partition plate 4 Cold storage room 5 Freezing room 6 Cold storage board 7 Cold storage board holding | maintenance part 7a Partition member 7b Bottom member 7c Back member 8 Fan 9 Duct 10 Open / close cover for goods 11 Open / close cover for cold storage board

Claims (3)

  The inside of the heat insulation box provided with an open / close lid on the top opening is partitioned into a refrigerator compartment and a freezer compartment, and a regenerator plate holder for holding a regenerator plate in which a regenerator material is formed in a plate shape is provided in the freezer compartment. An on-vehicle cooling cabinet provided with a fan for supplying indoor cold air to the refrigerator compartment.   The in-vehicle cooling cabinet according to claim 1, wherein the cold storage plate holding section includes a plurality of cold storage plate holding sections that are capable of holding a cold storage plate having the same shape and have air permeability.   The in-vehicle cooling cabinet according to claim 1 or 2, wherein the cold storage plate is cooled by a cooling facility using nighttime electric power.

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