JPS6241145Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a casing for an outdoor unit in a heating and cooling system.

An outdoor unit of an air conditioning system that has both heating and cooling functions incorporates a device for cooling operation and a device for heating operation, but the refrigerant heating device, which is the device for heating operation, is installed above the compressor etc. Therefore, the casing is often divided into an upper and lower part. However, in the case of conventional outdoor unit casings, the joint between the upper structure and the lower structure at the front is a simple linear butt, so the front part tends to be distorted and deformed by small external forces. In addition to the problem that it is easy to screw, it is necessary to prevent rattling of the joint by using threaded parts.

The present invention aims to solve the above-mentioned conventional problems and provides an outdoor unit casing for an air-conditioning/heating system that can improve the rigidity of the front part and reduce the number of screw parts.

Next, the configuration of the present invention will be specifically explained based on an embodiment shown in the drawings.

A casing 1 of an outdoor unit of an air-conditioning and heating system as an application example of the present invention shown in the drawings has a hollow box-shaped sheet metal structure whose interior is partitioned vertically by an upper base 2, and a lower casing 3 forming the lower front part.
The outer shell is formed by an upper casing 4 constituting the front upper part and a top part, a back casing 5 constituting the back surface, left and right side casings 6, and a bottom plate 7 constituting the bottom. Casing 1
The front surface of is formed by the front surface of the upper casing 4 and the front surface of the lower casing 3. That is, the upper casing 4 and the lower casing 3 are joined to form a horizontally straight joint 8 at a position slightly above the midpoint of the vertical dimension of the casing 1, and the casing 1 is discontinuous but flush. It forms the front of the An upper base 2 whose one edge is fixed to the back casing 5 at a position corresponding to this horizontally running joint 8 on the front surface is arranged parallel to a bottom plate 7 constituting the bottom. The front end edge of the upper base 2 is in a free state, and an upwardly directed flange 2A is formed on the free end by bending it inside the joint portion 8 on the front surface. A slit-shaped holding hole 2B is formed in the plane portion of the upper base 2 following the base of the flange 2A in the lateral direction along the joint portion 8. On the other hand, the aforementioned front joint part 8 has a structure as shown in FIG. 2, and a part of the structure fits into the holding hole 2B of the upper base 2 as shown. That is, the lower edge of the upper casing 4, which is one element constituting the joint part 8, has a channel structure formed by bending an upward channel 4A inward, and the other element of the joint part 8 has a channel structure formed by bending an upward channel 4A inside. The upper edge of a certain lower casing 3 is
It has an angle structure along the web 4B and the inner flange 4C in the channel 4A of the upper casing 4. Therefore, the internal structure of the joint portion 8 is a double structure in which the channel structure and the angle structure overlap from below. The inner flange 4C of the channel 4A constituted by the upper casing 4 of the joint part 8 faces the flange 2A of the front edge of the upper base 2, and the inner flange 4C of the channel 4A constituted by the lower casing 4 of the joint part 8 faces the edge flange 3A of the angle structure constituted by the lower casing 3 of the joint part 8. is fitted into a holding hole 2B formed in the upper base 2 from below. Therefore, as a result, the internal structure of the joint portion 8 involves the upper base 2, and has a triple structure in part. Therefore, in the casing 1 having such a structure, the rigidity of the front surface is improved by the structure of the joint part 8, and not only is distortion and deformation less likely to occur, but also rainwater can be prevented from entering, and the lower casing 3 and the back casing 5 are are connected via the upper base 2 and held in a tensioned state, so that chatter vibration of the casing 1 can be suppressed, and screw parts for holding down the lower casing 3 can be removed. be.

As is clear from the above description of the embodiments, the outdoor unit casing of the air conditioning system of the present invention has a channel structure and an angle structure bent at the joint of the upper casing and the lower casing, respectively, which constitute the front surface, and Since the angle structure of the lower casing is fitted to the front edge of the upper base, which is fixed on the back side and partitions the interior into upper and lower parts, the rigidity of the front can be increased by the structure of the joint, and This has the advantage of preventing rainwater from entering and ensuring the stability of the front part without using screw parts.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the appearance of a casing of an outdoor unit of a heating and cooling system as an application example of the present invention;
FIG. 2 is a cross-sectional view showing the configuration of its main parts.
Note that the same reference numerals in the figures indicate the same or equivalent parts. 1...Casing, 2...Upper base, 2A...
... flange, 3 ... lower casing, 3A ... edge flange, 4 ... upper casing, 4A ... channel, 4B ... web, 4C ... inner flange, 7 ... bottom plate, 8 ... joint.

Claims (1)

[Scope of utility model registration request] A front surface is formed by the front surface of the upper casing and the front surface of the lower casing, and the front surface is formed by the front surface of the upper casing and the lower casing. It has a hollow box-shaped structure in which the upper base that partitions the casing is arranged almost parallel to the bottom plate that forms the bottom, and the upper casing at the joint on the front side has a channel structure in which an upward channel is bent inside the upper casing. The lower casing at the joint part has an angled structure in which the part along the channel web of the upper casing and the inner flange is bent inward, and the free end inside the joint part of the lower casing is bent on the back side. An outdoor unit casing of an air-conditioning device configured to be fitted to a front end edge of the fixed upper base.