JP3999531B2 - Transport refrigeration equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a transport refrigeration apparatus mounted on a refrigeration vehicle for land transport.
[0002]
[Prior art]
FIG. 6 is a longitudinal sectional view of the front portion of the luggage compartment 1 of the refrigerator car. A transport refrigeration apparatus 2 is provided at the front upper part of the luggage compartment 1. A heat insulating wall 3 is provided so as to protrude outward from the rectangular luggage compartment 1, and an evaporator 4 and a fan 5 for blowing air are provided in the heat insulating wall 3. On the other hand, a capacitor 6 and a fan 7 for blowing air are provided outside the heat insulating wall 3. The evaporator 4 and the condenser 6 are supported by a frame 10 fixed to the luggage compartment 1.
[0003]
FIG. 7 is a perspective view of the frame 10. The frame 10 includes upper and lower horizontal frame members 11, 12, a van attachment member 13 for attaching the horizontal frame members 11, 12 to the luggage compartment, and a capacitor attachment vertically passed between the horizontal frame members 11, 12. A member 14 and an evaporator suspension member 15 provided between the horizontal frame members 11 and 12 and between the horizontal frame members 11 and 12 and the van attachment member 13 are provided.
[0004]
[Problems to be solved by the invention]
In the conventional transport refrigeration apparatus configured as described above, the evaporator 4 and the condenser 6 are attached to the evaporator suspension member 15 and the condenser attachment member 14. The other fans 5 and 7 and the heat insulating material 3 are also supported by the frame 10.
However, in the conventional transport refrigeration apparatus, all loads of the evaporator 4 and the capacitor 6 act on the frame 10. The frame 10 has a cantilever support structure in which one end side of the horizontal frame members 11 and 12 is fixed to the luggage compartment 1 at the same vertical height.
For this reason, in order to support the load, it is necessary to increase the rigidity of the frame 10, which increases the weight.
[0005]
The present invention has been made in view of the above circumstances, and an object thereof is to provide a transport refrigeration apparatus provided with a frame that realizes sufficient load support even with a light weight.
[0006]
[Means for Solving the Problems]
The invention according to claim 1 is a transport refrigeration apparatus comprising a frame that supports a condenser, and the frame is attached to an outer peripheral wall in front of a luggage compartment of a freezing vehicle. The horizontal frame material is provided, and both ends of at least one horizontal frame material are supported by a support frame material that descends or rises toward the luggage compartment, and the one horizontal frame material and the support frame material are integrated with each other. And a fixed member for fixing the horizontal frame to the luggage compartment in a substantially horizontal posture is provided. It is characterized by being.
[0007]
In this invention, at least one of the two upper and lower horizontal frame members of the frame that supports the capacitor is integrally folded with the diagonal support frame member toward the luggage compartment, and the entire shape is bent into a U shape. The horizontal frame material is supported by both the oblique support frame material on both sides constituting the inclined frame material and the substantially horizontal posture fixing member that fixes the horizontal frame material to the luggage compartment. Therefore, it is possible to obtain high strength simply by using the horizontal frame material as the inclined frame material while maintaining almost the same component structure as before, and it is possible to support a heavier weight without increasing rigidity.
[0008]
According to a second aspect of the present invention, in the transport refrigeration apparatus according to the first aspect, both ends of the upper horizontal frame member are supported by a support frame member descending toward the luggage compartment, and the upper horizontal frame member is supported. and the frame member the support frame members, constitutes an inclined frame member overall shape continuous together is bent in a U-shape, the inclined frame member in the width direction at both ends of the plate in one direction It has a U-shaped configuration in a sectional view, and is further bent in a U-shape so that both ends in the width direction face outward, and further, a capacitor is provided in front of the frame. To do.
[0009]
In the present invention, since the horizontal frame member and the support frame member are U-shaped in cross section, light weight and high rigidity can be obtained. Further, when the wind passing through the condenser from the front passes upward behind the condenser and in front of the frame, it passes through the vicinity of the horizontal frame material. At this time, the horizontal frame material is an inclined frame material, and since the inclined frame material is in an inclined state, the end in the width direction faces outward and obliquely upward. It is difficult to become wind path resistance.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
What is shown in FIG. 1 is a frame 20 according to the present embodiment.
In this frame 20, a horizontal frame member 12 provided at the lower portion, an inclined frame member 21 provided to be inclined, a van attachment member 13 for attaching the horizontal frame member 12 and the inclined frame member 20 to a luggage compartment, A capacitor mounting member 14 passed vertically between the horizontal frame material 12 and the inclined frame material 21 and an evaporator suspension member 15 passed between the inclined frame material 21 and the van mounting member 13 are provided.
[0011]
The inclined frame material 21 includes a front horizontal frame material 21a and two support frame materials 21b that support both side portions of the horizontal frame material 21a.
As shown in FIG. 2, the inclined frame member 21 has a U-shaped cross-sectional view in which both ends 21a in the width direction of the plate are raised in one direction, and further the entire U-shape so that the both ends in the width direction face the outside. It is bent to. Thus, the support frame material 21b is continuous with both ends of the horizontal frame material 21a. Similarly, the horizontal frame member 12 also has a U-shaped cross-sectional view in which both ends in the width direction of the plate rise in one direction, and is further bent in a U-shape so that both ends in the width direction face the outside. ing.
The horizontal frame member 21a is substantially parallel to the horizontal frame member 12, and is attached to the van attachment member 13 by a support frame member 21b that is inclined so that the height on the base end side is lowered on both sides. For this reason, the horizontal frame member 21a having a U-shaped cross section has both ends in the width direction on the outside and faces obliquely upward as shown in FIG.
The van attachment member 13 is a member for attaching the horizontal frame member 12 and the inclined frame member 21 to the luggage compartment 1.
The capacitor attachment member 14 is attached to the horizontal frame material 12 and the inclined frame material 21 at both ends in a vertical orientation at several places in the front width direction of the frame 20. The evaporator suspending member 15 has a part of the evaporator suspending member 15a in the vertical direction like the capacitor mounting member 14, and both ends thereof are respectively attached to the horizontal frame member 12 and the inclined frame member 21, and the remaining evaporator suspending members A (fixing member) 15b is attached to the horizontal frame member 21a of the inclined frame member 21 and the van attachment member 13 in a substantially horizontal posture at the upper part of the frame.
[0012]
With this configuration, the frame 20 has a truss structure. That is, since the horizontal frame member 21 a is supported by the evaporator suspension member 15 and the support frame member 21 b of the inclined frame member 21, high strength can be obtained, and the capacitor attachment member 14 is also applied to the horizontal frame member 12. Further, by being fixed by the evaporator suspension member 15, higher strength can be obtained.
Therefore, a heavier weight can be supported with almost the same component structure as before without increasing the rigidity of the material. Therefore, the weight can be reduced and the cost can be reduced.
[0013]
The cross-sectional shape of the inclined frame material 21 may be any shape (for example, a pipe shape). However, when a member having a U-shaped cross section is used for the inclined frame member 21 as in the present embodiment, as can be seen from the cross section of FIG. 3, both ends in the width direction are inclined as the inclined frame member 21 is in an inclined state. Looking up. For this reason, as can be seen from the comparison with the case of not tilting as shown in FIG.
Moreover, since the inclined frame material 21 is U-shaped in cross section, light weight and high rigidity can be obtained.
In the above embodiment, the upper frame member is inclined to form the inclined frame member 21. However, the lower horizontal frame member 12 may be similarly inclined as shown in FIG. It may be horizontal and only the lower horizontal frame member 12 may be inclined.
[0014]
In the above, the evaporator suspension member 15b as a fixing member supports the horizontal frame material 21a of the inclined frame material 21 in a substantially horizontal posture. However, the angle is not limited to this, and may be an angle different from that of the support frame member 21b.
[0015]
【The invention's effect】
As described above, the following effects can be obtained in the present invention.
According to the first aspect of the present invention, at least one of the two upper and lower horizontal frame members of the frame that supports the capacitor is integrated with the diagonal support frame member that faces the luggage compartment, and the entire continuous shape is copied. A slanted frame material that is bent into a letter shape, the horizontal frame material constituting the slanted frame material, the diagonal support frame material on both sides, and a substantially horizontal posture fixing member that fixes the horizontal frame material to the luggage compartment ; Therefore, it is possible to obtain a high strength simply by using the horizontal frame material as the inclined frame material while maintaining almost the same component structure as before, and it is possible to support a heavier weight without increasing the rigidity. . Therefore, the weight can be reduced and the cost can be reduced.
According to the second aspect of the present invention, when the wind passing through the condenser from the front passes upward behind the condenser and in front of the frame, the lateral frame material is the inclined frame material. Since both end portions in the width direction are outward and obliquely upward, the both end portions in the width direction do not serve as wind path resistance. Moreover, since the horizontal frame member and the support frame member are U-shaped in cross section, light weight and high rigidity can be obtained.
[Brief description of the drawings]
FIG. 1 is a perspective view of a frame used in a transport refrigeration apparatus shown as an embodiment of the present invention.
FIG. 2 is a diagram showing the shape of a frame material.
FIG. 3 is a partial longitudinal sectional view of the frame in use.
FIG. 4 is a diagram comparing wind paths of wind W when the frame material is tilted and when it is not tilted.
FIG. 5 is a diagram showing a modification of the present embodiment.
FIG. 6 is a longitudinal sectional view showing a use state of a conventional transport refrigeration apparatus.
FIG. 7 is a perspective view of a frame used in a conventional transport refrigeration apparatus.
[Explanation of symbols]
15a Evaporator suspension member (fixing member)
20 Frame 21 Inclined frame 21a Horizontal frame material 21b Support frame material

Claims (2)

In a transport refrigeration apparatus comprising a frame that supports a condenser, and the frame is attached to an outer peripheral wall in front of a luggage compartment of a refrigeration vehicle.
The frame is provided with two horizontal frame members on the upper and lower sides of the front, and both ends of at least one horizontal frame member are supported by a support frame member that descends or rises toward the luggage compartment,
The one horizontal frame material and the support frame material constitute an inclined frame material in which the entire continuous shape is bent in a U-shape,
The transport refrigeration apparatus further comprises a fixing member for fixing the horizontal frame to the luggage compartment in a substantially horizontal posture. In the transport refrigeration apparatus according to claim 1,
Both ends of the upper horizontal frame material are supported by a support frame material that descends toward the luggage compartment,
The upper horizontal frame material and the support frame material constitute an inclined frame material that is integrally folded into a U-shape , and the inclined frame material has both ends in the width direction of the plate material. Is a U-shaped cross-sectional view that rises in one direction, and is further bent into a U-shape so that both ends in the width direction face the outside,
Further, a transport refrigeration apparatus, wherein a condenser is provided in front of the frame.

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