JP2003254657A - Refrigeration unit for transportation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigeration unit for transportation comprising a frame fully supporting a load, even though being light. <P>SOLUTION: In this refrigeration unit for transportation comprising the frame 20 supporting a condenser and having the frame 20 fixed on outer peripheral wall in front of a cargo chamber of a refrigerated vehicle, the frame 20 has two lateral frame materials 21a vertically in front, both ends of at least one of the lateral frame materials 21a are supported by a support frame material 21b going down to the cargo chamber or going up therefrom, and an evaporator hanging member (fixing member) 15 for fixing the lateral frame material 21a, approximately in a horizontal attitude, to the cargo chamber is provided. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transportation refrigeration system mounted on a refrigeration vehicle for land transportation.

[0002]

2. Description of the Related Art FIG. 6 is a vertical sectional view of a front portion of a luggage compartment 1 of a refrigerating vehicle. A transportation refrigeration system 2 is provided in the upper front part of the luggage compartment 1. A heat insulating wall 3 is provided so as to project 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, outside the heat insulating wall 3, a condenser 6 and a fan 7 for blowing air are provided. The evaporator 4 and the condenser 6 are supported by a frame 10 fixed to the luggage compartment 1.

FIG. 7 is a perspective view of the frame 10. The frame 10 includes horizontal frame members 11, which are provided at the top and bottom,
12, a van attachment member 13 for attaching these horizontal frame members 11 and 12 to the luggage compartment, and a horizontal frame member 1
Capacitor mounting member 1 passed vertically between 1 and 12
4 and between the horizontal frame members 11 and 12, and between the horizontal frame members 11 and 12 and the van mounting member 13, an evaporator suspension member 15 is provided.

[0004]

In the conventional transport refrigeration system thus constructed, the evaporator suspension member 15 is used.
Also, the evaporator 4 and the condenser 6 are attached to the condenser attaching member 14. Other fans 5,7,
The heat insulating material 3 is also supported by the frame 10. However, in the above-described conventional transportation refrigeration apparatus, the loads of the evaporator 4 and the condenser 6 all act on the frame 10. The frame 10 has a cantilever support structure in which one ends of the horizontal frame members 11 and 12 are fixed to the luggage compartment 1 at the same vertical height. Therefore, it is necessary to increase the rigidity of the frame 10 to support the load,
There was a problem that the weight increased.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a transportation refrigerating apparatus provided with a frame which realizes sufficient load support even if it is lightweight.

[0006]

According to a first aspect of the present invention, there is provided a refrigerating apparatus for transportation, comprising a frame for supporting a condenser, the frame being attached to an outer peripheral wall in front of a luggage compartment of a refrigerating 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 of the horizontal frame members are supported by supporting frame members which descend or rise toward the luggage compartment, and further have a substantially horizontal posture. And a fixing member for fixing the lateral frame to the luggage compartment is provided.

In the present invention, since the horizontal frame member is supported by both the oblique support frame member and the substantially horizontal fixed member, it is possible to support a heavier weight without increasing the rigidity.

According to a second aspect of the present invention, in the transportation refrigerating apparatus according to the first aspect, both ends of the upper horizontal frame member are supported by supporting frame members that descend toward the luggage compartment, The upper horizontal frame member and the support frame member are integrated to form an inclined frame member,
The inclined frame member has a U-shaped cross-sectional shape in which both ends in the width direction of the plate member are raised in one direction, and the whole is bent in a U-shape so that both ends in the width direction face outward, and further, A condenser is provided in front of the frame.

In the present invention, since the horizontal frame member and the support frame member are U-shaped in cross section, it is possible to obtain lightweight and high rigidity. Further, the wind that has passed through the condenser from the front passes near the horizontal frame member when passing upward behind the condenser and in front of the frame. At this time, since the widthwise end of the horizontal frame member is facing outward and obliquely upward, the U-shaped horizontal frame member is unlikely to have air passage resistance.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS 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. This frame 20
In, the horizontal frame member 12 provided at the bottom,
A tilted frame member 21 provided to be tilted, a van mounting member 13 for mounting the horizontal frame member 12 and the tilted frame member 20 in a luggage compartment, and a horizontal frame member 1
The capacitor mounting member 14 extends vertically between the inclined frame member 21 and the inclined frame member 21, and the evaporator suspension member 15 extends between the inclined frame member 21 and the van attachment member 13.

The inclined frame member 21 is composed of a front horizontal frame member 21a and two support frame members 21b for supporting both side parts of the horizontal frame member 21a. As shown in FIG. 2, the tilted frame member 21 has a U-shaped cross-sectional shape in which both widthwise ends 21a of the plate member are raised in one direction, and further, the entire widthwise both ends are outwardly U-shaped. It has been folded into. As a result, the horizontal frame member 2
The support frame member 21b is continuous with both ends of 1a. Similarly, the horizontal frame member 12 also has a U-shaped cross-sectional shape in which both ends in the width direction of the plate member are raised in one direction, and the whole is bent in a U-shape so that both ends in the width direction face outward. ing. The horizontal frame member 21a is substantially parallel to the horizontal frame member 12, and the supporting frame member 21b is inclined so that the height at the base end side is low at both sides.
Is attached to the van attachment member 13.
Therefore, the horizontal frame member 21a having a U-shaped cross section is
As shown in FIG. 3, both ends in the width direction are outward and face diagonally upward. The van mounting member 13 is a horizontal frame member 12.
It is a member for attaching the inclined frame member 21 to the luggage compartment 1. The capacitor mounting member 14 is the frame 2
0 is attached to the horizontal frame member 12 and the inclined frame member 21 at several positions in the front width direction and in a vertical posture. The evaporator suspension member 15 has a part of the evaporator suspension member 15a attached to the horizontal frame member 12 and the inclined frame member 21 at both ends in the same vertical posture as the capacitor attachment member 14, and the remaining evaporator suspension member 15a. The (fixing member) 15b is attached to the horizontal frame member 21a of the inclined frame member 21 and the van mounting member 13 in a substantially horizontal posture at the upper part of the frame.

With such a structure, 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 supporting frame member 21 b of the inclined frame member 21, high strength can be obtained, and the capacitor mounting member 14 is also attached to the horizontal frame member 12. By being fixed by the evaporator suspension member 15, higher strength can be obtained. Therefore, it is possible to support a heavier weight with substantially the same component structure as the conventional one without increasing the rigidity of the material. Therefore, the weight can be reduced and the cost can be suppressed.

The inclined frame member 21 may have any cross-sectional 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. Facing upwards. For this reason, as can be seen from the comparison with the case where there is no inclination shown in FIG. 4, both ends 21a in the width direction of the inclined frame member 21 are unlikely to become the air passage resistance of the wind W from the fan. In addition, since the inclined frame member 21 is U-shaped in cross section, it is possible to obtain lightweight and high rigidity. Further, in the above-described embodiment, the upper frame member is inclined to form the inclined frame member 21, but 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.

In the above description, the evaporator suspension member 15b as a fixing member supports the horizontal frame member 21a of the inclined frame member 21 in a substantially horizontal posture. However, the present invention is not limited to this, and any angle different from that of the support frame member 21b may be used.

[0015]

As described above, the following effects can be obtained in the present invention. According to the invention described in claim 1, since the horizontal frame member is supported by both the diagonal support frame member and the substantially horizontal fixed member, it is possible to support a heavier weight without increasing the rigidity. You can
Therefore, the weight can be reduced and the cost can be suppressed. According to the invention of claim 2,
When the wind that has passed through the condenser from the front escapes upward behind the condenser and in front of the frame, the widthwise both ends of the horizontal frame are outward and obliquely upward, so that the widthwise both ends Does not cause wind resistance. Further, since the horizontal frame member and the support frame member are U-shaped in cross section, lightweight and high rigidity can be obtained.

[Brief description of drawings]

FIG. 1 is a perspective view of a frame used in a transportation refrigeration apparatus shown as an embodiment of the present invention.

FIG. 2 is a diagram showing a shape of a frame material.

FIG. 3 is a partial vertical cross-sectional view of the frame in a used state.

FIG. 4 is a diagram comparing the air passages of the wind W when the frame material is inclined and when it is not inclined.

FIG. 5 is a diagram showing a modified example of the present embodiment.

FIG. 6 is a vertical sectional view showing a usage state of a conventional transportation refrigeration apparatus.

FIG. 7 is a perspective view of a frame used in a conventional transportation refrigeration apparatus.

[Explanation of symbols]

15a Evaporator suspension member (fixing member) 20 frames 21 Tilt frame 21a Horizontal frame material 21b Support frame material

Claims (2)

[Claims] 1. A frame for supporting a capacitor is provided,
In the transportation refrigeration apparatus in which the frame is attached to the outer peripheral wall in the front of the luggage compartment of the refrigeration vehicle, the frame is provided with two horizontal frame members on the upper and lower sides of the front, and at least one of the horizontal frame members has both ends. And a supporting member that is supported by a supporting frame member that descends or rises toward the luggage compartment, and that further includes a fixing member that fixes the horizontal frame to the luggage compartment in a substantially horizontal posture. Refrigeration equipment for transportation. 2. The refrigeration apparatus for transportation according to claim 1, wherein both ends of the upper horizontal frame member are supported by support frame members that descend toward the luggage compartment, and the upper horizontal frame member and the upper horizontal frame member The supporting frame member and the supporting frame member integrally form an inclined frame member, and the inclined frame member has a U-shaped cross-sectional shape in which both ends in the width direction of the plate stand in one direction, and both ends in the width direction are outside. A refrigerating apparatus for transportation, characterized in that the whole is bent in a U shape so as to face to, and a condenser is provided in front of the frame.