JP4267882B2 - Heat storage device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a warming device, and more particularly to a device that achieves uniform temperature in a warming chamber.
[0002]
[Prior art]
For example, in hospitals and hotels, a distribution car is used in which a partition wall is disposed inside a main body made of a heat insulating box to define a warm room and a cold room adjacent to each other. In the warming room of this distribution car, a heater panel (heating panel) with a cord heater attached to the back surface is stretched on the inner wall located on the opposite side of the cold storage room, mainly from the surface of the heater panel. The warming chamber is heated by radiant heat (see, for example, Patent Document 1).
More specifically, the back surface of the heater panel is divided into three regions in the lateral direction, and a reinforcing member made of a channel material is sandwiched and fixed between the boundary portion between each region and the inner wall, Reinforcement is made to prevent the heater panel from warping caused by thermal expansion, and three ducts facing in the vertical direction are formed side by side in the horizontal direction. Then, a downward flow of wind is blown into each duct from the fan arranged above, and a circulation flow is generated by blowing out from the lower end and ascending in the warming chamber. The temperature of the entire surface is made uniform so that the radiant heat does not vary, and the warming chamber can be heated uniformly over the entire area.
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 2000-97559
[Problems to be solved by the invention]
By the way, there is also a demand for downsizing of this type of arrangement vehicle. For example, if the dimension in the depth direction is reduced, the width of each duct has to be reduced, and as a result, the flow resistance in the duct increases. Some ducts may interfere with the smooth circulation of warm airflow. In other words, since the flow of warm air can vary between the ducts, there is a possibility that a temperature difference occurs in each part of the heater panel, and as a result, the temperature distribution in the warm room becomes non-uniform.
The present invention has been completed based on the above-described circumstances, and an object thereof is to make the temperature distribution in the warm room uniform.
[0005]
[Means for Solving the Problems]
As a means for achieving the above object, the invention of claim 1 is characterized in that a heating panel is provided in a main body formed of a heat insulating box with a gap for ventilation between the inner wall of the main body. The temperature distribution of the heating panel is made uniform by allowing the air to flow in almost one direction over the entire width of the ventilation gap by the blower , and the inside of the main body in the heating panel Between the wall-side surface and the inner wall of the main body opposed to the wall-side surface , a reinforcing member having an elongated shape in the wind flow direction is provided in the direction along the wind flow direction in the heating panel. together provided over the entire length, the reinforcing member has a plurality of communicating portions for communicating with each other on both sides of the reinforcing member, spaced from each other in the longitudinal direction of the reinforcing member, and substantially the entire length of the reinforcing member over in formation It has a feature where you are.
[0006]
[Action and effect of the invention]
<Invention of Claim 1>
The wind blown out from the blower flows through the openings formed in the reinforcing member as appropriate to both sides thereof, and smoothly circulates over the entire gap on the back surface of the heating panel without stagnation in the middle. As a result, the temperature of the heating panel is kept uniform over the entire surface, so that the temperature of the storage room can be made uniform. Moreover, the reinforcing function of the heating panel is secured.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment in which the present invention is applied to a hot and cold distribution vehicle will be described with reference to FIGS. 1 to 3.
As shown in FIG. 1, the heating / cooling distribution vehicle of the present embodiment includes a storage chamber body 1 (hereinafter simply referred to as a main body 1) having a rectangular box shape as a whole. In shape, it is configured as a heat insulating box body in which a ceiling wall, a bottom wall, and left and right side walls are filled with a heat insulating material such as urethane foam. The bottom surface of the main body 1 is equipped with casters, and the machine room 2 is provided on the top surface.
[0008]
A vertical frame 12 is erected at the center in the width direction at the front and rear openings of the main body 1, and an intermediate wall 13 is provided in the center of the main body 1 in the width direction. It is divided into two rooms on the left and right. Further, in the two left and right chambers, a heat insulating partition wall 14 to be described later is provided at a position slightly closer to the intermediate wall 13 side than the central portion in the width direction. Thereby, the warm room 3 is comprised outside the partition wall 14, and the refrigerator compartment 4 is comprised inside 2 each.
In other words, two sets of adjacent storage rooms 3 and refrigerator rooms 4 are formed in the left-right direction, and further divided into front and rear to form a total of four sets of storage rooms 3 and refrigerator rooms 4. In each set of the warm room 3 and the cold room 4, trays 5 to be described later are accommodated in multiple stages over both the rooms 3 and 4. Each of the warm room 3 and the cold room 4 is equipped with a double door (not shown).
[0009]
The tray 5 is formed in a horizontally long rectangular shape with synthetic resin or the like, and a boundary portion 51 is provided at a position slightly closer to one side than the central portion of the horizontal width, and the tray 5 is provided in a warm state across the boundary portion 51. The food to be served is placed in a cold state on the narrow side.
The partition wall 14 is formed by stacking a plurality of unit partition walls 14A on a base. The unit partition wall 14A is formed in a hollow shape having a vertically long cross section with the upper end pointed in a chevron shape by extrusion molding of a synthetic resin material, and has a length substantially equal to the depth dimension in the main body 1. A reinforcing material (not shown) is arranged on the. Further, a pair of movable members 14B are provided on the lower surface of the unit partition wall 14A so as to protrude downward and urged downward by a spring elasticity.
[0010]
A pair of support arms 15, 15 project from the center in the length direction on both the left and right sides of the unit partition wall 14 </ b> A, and tray receivers 16, 16 are attached to the projecting ends, respectively. These tray receivers 16, 16 are formed by bending a stainless steel plate, are formed in an angle shape having a length slightly shorter than the depth dimension of the main body, and the horizontal plane is the receiving surface of the tray 5. As a result, a pair of support arms 15, 15 project from both the left and right sides of the unit partition wall 14 </ b> A, and a partition unit 17 provided with tray receivers 16, 16 is formed at the projecting ends of the support arms 15, 15.
[0011]
The intermediate wall 13 is constituted by arranging two ducts 18 for front and rear for cold air flow with an interval between them, and the left and right sides of each duct 18 are divided into a plurality of regions, and a vent group 19 is formed respectively. Has been. In the machine room 2, a cooler room 21 is defined so as to cover both ducts 18 and the opening of the ceiling surface of one of the refrigerating rooms 4, and a refrigeration cycle together with a compressor 22, a condenser 23 and the like is formed therein. The cooler and the internal fan (not shown) which comprise are installed. For this reason, when the refrigeration cycle is operated and the internal fan is driven, cold air generated in the vicinity of the cooler is blown into each duct 18 and blown out to the left and right refrigerator compartments 4 through the vent group 19. After that, a circulation flow is caused such that the refrigerating chamber 4 is led from the ceiling side of the one refrigerating chamber 4 into the cooler chamber 21 so that the left and right refrigerating chambers 4 are cooled.
[0012]
Next, the structure of the warm room will be described with reference to FIGS.
On the side wall of the warm room 3 opposite to the partition wall 14, the heater panel 6 is stretched with a space therebetween. The heater panel 6 is made of an aluminum plate and, as shown in FIG. 2, has a shape in which a flange 61 bent at right angles to the back side is formed on the front and rear side edges, and the flange 61 is formed on the side wall. By fixing to the attached bracket by screwing, a gap is formed between the heater panel 61 and the side wall.
On the back surface of the heater panel 6, three sets of cord heaters 7 drawn from the heater unit 24 provided in the machine room 2 are arranged. Each of the cord heaters 7 is formed in a vertically long rectangular shape, and is arranged side by side in the front-rear direction with a predetermined gap between adjacent cord heaters 7, and a heater panel is formed by an aluminum foil tape (not shown). 6 is attached to the back surface.
[0013]
A reinforcing member 8 that prevents the heater panel 6 from warping toward the side wall due to thermal expansion is attached to the gap provided between the adjacent cord heaters 7 on the back surface of the heater panel 6 over almost the entire height. It has been. The reinforcing member 8 has a long and narrow plate shape as a whole, and a plurality of partition pieces 82 rising at a right angle to the plate surface 81 are formed in pairs with a predetermined interval in the vertical direction. The reinforcing member 8 is fixed to the heater panel 6 with a rivet driven at each position corresponding to the position where the partition piece 82 is formed on the plate surface 81, and the protruding end of the partition piece 82 is fixed to the main body 1. It comes in contact with the side wall. Thereby, the space is divided into three ducts 62 to 64, and the communicating portion 9 (the hatched portion in FIG. 3) communicates between the adjacent ducts 62 to 64 between the upper and lower partition pieces 82. Is formed).
Moreover, the lower end of the area | region in which the ducts 62-64 in the heater panel 6 were provided is cut off by the predetermined dimension, and the blower outlet 68 opened to the warming chamber 3 side is formed. Furthermore, a fan F is provided in the heater unit 24, and this fan F is arranged above the central duct 63 so that it can blow downward.
[0014]
The front and rear side edges of the heater panel 6 are each formed with a plurality of stages of two through holes 65 each having a long hole shape. A guide member 66 is provided over substantially the entire height of the heater panel 6. The guide member 66 is formed in an angled shape, one surface of the guide member 66 is applied to the heater panel 6 and fixed by rivets being driven into both upper and lower ends thereof, and the other surface rises from the heater panel 6 at a right angle. . An introduction portion 67 is formed on the upper edge of each guide member 66, and the introduction portion 67 is arranged in a slanting posture with a right angle to the heater panel 6 and an upper end inclined inward.
[0015]
This embodiment has the structure as described above, and the operation thereof will be described subsequently.
When the temperature refrigeration function of the main body 1 is activated, the refrigerator compartment 4 is cooled by the operation as described above, and in the refrigerator compartment 3, the inside of the ducts 62 to 64 is warmed by Joule heat generated from the cord heater 7, The inside of the warm room 3 is kept warm by the radiant heat from the heater panel 6.
At this time, the fan F is also driven, and as shown by the arrows in FIGS. 2 and 3, warm air is blown downward through the ducts 62 to 64, and flows into the warming chamber 3 from the outlet 68 at the lower end. A circulation flow is generated such that the air is blown out to rise in the warming chamber 3. Here, since the communication part 9 is formed in the reinforcing member 8, the warm air blown into each of the ducts 62 to 64 passes through the communication part 9 as appropriate as shown by the arrow in FIG. It flows smoothly through the ducts 62 to 64 without stagnation on the way. Thereby, the temperature of the heater panel 6 is kept uniform over the entire surface.
Part of the warm air is also blown out toward the warming chamber 3 from the through holes 65 formed in the front and rear side edges of the heater panel 6, and plays a role in speeding up the temperature rise in the warming chamber 3.
[0016]
Thus, in this embodiment, the reinforcement member 8 is attached to the back surface of the heater panel 6 and applied to the side wall, whereby the heater panel 6 is prevented from warping toward the side wall due to thermal expansion. In addition, since the communication member 9 is formed in the reinforcing member 8, the warm air blown into the ducts 62 to 64 flows through the communication unit 9 and appropriately flows to the adjacent ducts 62 to 64, and stays on the way. Flow smoothly without any problems. Thereby, the temperature of the heater panel 6 is kept uniform over the entire surface, and the temperature of the warming chamber 3 can be made uniform.
[0017]
<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention, and further, within the scope not departing from the gist of the invention other than the following. Various modifications can be made.
(1) In the above-described embodiment, the structure in which the code heaters 7 are arranged in the front-rear direction and arranged on the heater panel 6 is shown. However, for example, a structure in which these are arranged vertically may be used.
(2) The reinforcing member 8 is composed of the plate surface 81 and the partition piece 82, and the communication piece 9 is formed between the partition pieces 82. For example, the reinforcement member 8 is formed in a short angle shape. It is good also as a structure which forms and adheres to the heater panel 6 at predetermined intervals using two or more.
(3) In the present invention, the wind is circulated in the gap between the heating panel and the side wall, such as blowing the wind into one duct by a fan and sucking it through another adjacent duct. The present invention can be similarly applied to a type in which the temperature distribution is made uniform.
[Brief description of the drawings]
FIG. 1 is a partially cutaway perspective view showing the internal structure of a heating / cooling distribution vehicle according to an embodiment of the present invention. FIG. 2 is a perspective view of a heater panel arrangement portion. FIG. 3 is a rear view of the heater panel. Explanation of]
DESCRIPTION OF SYMBOLS 1 ... Storage chamber main body 6 ... Heater panel 7 ... Code heater 8 ... Reinforcement member 9 ... Communication part 62-64 ... Duct 81 ... Plate surface 82 ... Partition piece F ... Fan

Claims (1)

Inside the body of the insulation box, the heating panels are provided at a gap for ventilation between the inner wall of the body, the wind over the entire width of the gap for the ventilation by blowing apparatus- In what is intended to make the temperature distribution of the heating panel uniform by circulating in the direction ,
Between the inner wall side surface of the main body of the heating panel and the inner wall of the main body facing the main body, a reinforcing member having an elongated shape in the wind flow direction is provided on the heating panel. And provided over almost the entire length in the direction along the flow direction,
In the reinforcing member, a plurality of communicating portions that allow both sides of the reinforcing member to communicate with each other are spaced apart from each other in the longitudinal direction of the reinforcing member and are formed over substantially the entire length of the reinforcing member. Characterized warming device.

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