JP2005180851A - Cold insulation chamber for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cold insulation chamber for a vehicle achieving an increase of a loading capacity, evenness of cargo chamber temperature, and efficiency of cleaning work. <P>SOLUTION: An inside of a cargo chamber 8 is made even by providing a cooling passage 27 for circulating cool air A delivered from an air cooling machine 4 on a floor part 10, a side wall 11, a ceiling part 12, a front wall 13, and a rear wall 14 of the cargo chamber 8. The floor part 10, side wall 11, ceiling part 12, front wall 13, and rear wall 14 are cooled by the cool air A which circulates through the cooling passage 27, and the cool air A is fed from a wind guiding means 28 on the ceiling part 12 to the cargo chamber 8, and a temperature of an inside of the cargo chamber 8 is kept low depending on a stowage condition of cargo 7. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a cold room for a vehicle.

  FIG. 3 shows an example of a conventional vehicle cold room, a box-shaped cargo room 3 mounted on a frame 2 of a truck 1, and an air cooler 4 attached to the upper front end of the cargo room 3. And a movable floor 6 laid in the cargo compartment 3 so as to form a passage 5 for the cold air A with respect to the floor surface of the cargo compartment 3, and the cargo 7 is placed on the movable floor 6 ( For example, see Patent Document 1).

  The cool air A sent out by the air cooler 4 flows in the gap between the ceiling surface of the cargo compartment 3 and the cargo 7 toward the rear side of the vehicle, descends along the rear inner wall surface of the cargo compartment 3, and then moves to the movable floor 6. Enters the lower passage 5, flows toward the front side of the vehicle, rises along the front inner wall surface of the luggage compartment 3, and returns to the air cooler 4.

  Further, ribs are provided at appropriate intervals on the inner side wall surface of the cargo compartment 3 so that a gap for the cold air A to enter between the cargo 7 and the inner side wall surface is formed by the ribs.

The floor portion, left and right side walls, the ceiling portion, the front wall, and the rear wall of the luggage compartment 3 generally have a structure in which a heat insulating material for cold insulation is sandwiched between an inner plate and an outer plate.
Japanese Patent Laid-Open No. 2002-193022

  In the conventional vehicle cold room, the movable floor 6 and ribs are provided inside the cargo room 3 to secure the circulation path of the cold air A, so the load capacity of the cargo 7 is reduced by the amount of these members. Yes.

  The clearance between the ceiling surface of the cargo compartment 3 and the cargo 7 is preferably shaped so that the cross section gradually expands toward the rear side of the vehicle in consideration of the flow of the cold air A, but such loading of the cargo 7 is a fact. This is difficult, and the circulation of the cold air A is likely to occur, and the temperature of the cargo compartment 3 tends to be uneven.

  When the pre-cooling is performed when the cargo 7 is loaded, the air cooler 4 cools the inner wall surface and the ceiling surface through the air in the empty cargo room 3, so that a considerably large cooling capacity is provided. The air cooler 4 must be provided, and if the door is opened after pre-cooling, the cold air in the cargo compartment 3 is replaced with outside air within a short time.

  In addition to this, when cleaning the interior of the cargo compartment 3, the movable floor 6 must be removed, so that the cleaning operation cannot be performed efficiently.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a cold storage room for a vehicle that can achieve an increase in load capacity, a uniform cargo room temperature, and an efficient cleaning operation.

  In order to achieve the above object, according to the first aspect of the present invention, there is provided a cooling passage through which the cool air sent from the air cooler can be circulated in the interior and ceiling of the cargo compartment wall, It has air guide means that can supply cold air to the cargo compartment.

  In the invention according to claim 2, the plurality of air guiding means are arranged in the front-rear direction of the cargo compartment.

  In the first aspect of the present invention, the cool air sent out by the air cooler is circulated through the cooling passage to cool the wall of the cargo compartment, and the cold air passing through the cooling passage in the ceiling portion is sent to the cargo compartment by the air guiding means. Feed and keep the interior of the cargo compartment at a low temperature.

  In invention of Claim 2, the cold air | gas which passes through the cold air | gas channel | path of a ceiling part is sent to the specific part of a luggage compartment by a required wind guide means.

  (1) In the invention described in claim 1, since the wall of the cargo compartment is cooled by the cold air circulating in the cooling passage and the cold air is fed from the air guiding means to the cargo compartment, the cargo is loaded in a state in contact with the wall surface of the cargo compartment. This makes it possible to increase the load capacity and make the temperature of the cargo room uniform.

  (2) In the invention described in claim 2, since the cool air is supplied from the required air guiding means to the specific part of the cargo compartment, the interior of the cargo compartment is kept at a low temperature according to the cargo loading state. Can do.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows an example of an embodiment of a cold room for a vehicle according to the present invention. A cargo room 8 mounted on a frame 2 of a truck 1 and an air cooler 4 attached to the upper front end of the cargo room 8 are shown. I have.

  The luggage compartment 8 has a box shape having a floor portion 10, a side wall 11, a ceiling portion 12, a front wall 13, and a rear wall 14.

  The ceiling portion 12 includes a flat inner plate 15 and an outer plate 16, a spacer 17 forming a cooling passage 27 and a heat insulating material 18 for cold insulation, the spacer 17 being in contact with the inner plate 15, and the heat insulating material 18 being an outer plate. 16 so as to be in contact with 16.

  The side wall 11, the rear wall 14, the floor portion 10, and the front wall 13 have the same structure as the ceiling portion 12, and the cold air A fed from the air cooler 4 circulates through these cooling passages 27.

  Further, a plurality of air guiding means 28 for supplying the cold air A from the cooling passage 27 to the interior of the cargo compartment 8 are arranged in the ceiling portion 12 side by side in the longitudinal direction of the vehicle.

  The air guide means 28 includes an opening 29 formed in the inner plate 15 (see FIG. 2) of the ceiling portion 12 and a flap 30 that can close the opening 29.

  That is, since the inner plate 15 constituting the floor portion 10, the side wall 11, the ceiling portion 12, the front wall 13, and the rear wall 14 is cooled by the cold air A circulating in the cooling passage 27, the cargo 7 is brought into contact with the inner plate 15. It becomes possible to load in the state, and the loading capacity is increased. Further, since the heat input from the outer plate 16 side is suppressed by the heat insulating material 18, the temperature of the cargo compartment 8 can be made uniform and the door is opened. There is little loss of heat.

  When the flap 30 is operated to open the opening 29, the cold air A is supplied from the cooling passage 27 of the ceiling portion 12 to the inside of the cargo compartment 8, and the cargo 7 can be directly cooled by the cold air A.

  Therefore, if the cold air A is fed to a specific portion of the cargo compartment 8 from the opening 29 of the required air guiding means 28, the interior of the cargo compartment 8 can be kept at a low temperature according to the loaded state of the cargo 7.

  In addition, since the inner plate 15 is flat, the interior of the luggage compartment 8 can be easily cleaned.

  Note that the vehicular cold storage room of the present invention is not limited to the above-described embodiment, and it is needless to say that changes can be made without departing from the scope of the present invention.

  The vehicle cold room of the present invention can be applied to various types of vehicles.

It is a conceptual diagram which shows an example of embodiment of the cold storage room for vehicles of this invention. It is sectional drawing of the ceiling part relevant to FIG. It is a conceptual diagram which shows an example of the conventional cold storage chamber for vehicles.

Explanation of symbols

4 Air Cooler 8 Loading Room 10 Floor Part 11 Side Wall 12 Ceiling Part 13 Front Wall 14 Rear Wall 27 Cooling Passage 28 Air-Conducting Means A Cool Air

Claims (2)

  A cooling passage through which the cool air sent from the air cooler can be circulated is provided in the interior of the cargo compartment wall and in the ceiling, and air guide means is provided that can send cold air from the cooling passage in the ceiling to the cargo compartment. A vehicle cold room characterized by the following.   The vehicular cold storage chamber according to claim 1, wherein a plurality of air guide means are arranged side by side in the front-rear direction of the cargo compartment.

Images