JPS6038090Y2 - Ceiling-suspended indoor unit - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a ceiling fan-shaped indoor unit in which a heat exchanger is disposed in the front part and a fan is disposed in the rear part of the casing.

In this type of ceiling fan-shaped indoor unit that is thin in the vertical direction, as the equipment becomes larger due to improvement in heating and cooling capacity, for example, in the case of a four-unit fan, the fan top plate becomes extremely long, so it is usually two-way. Two sets of stand-set fan assemblies are constructed to improve assembly and serviceability, but with conventional structures, a special framework is required to attach multiple fans to the casing. Since the fan top plate is first fixed to this framework body using a casing, and then the framework body is attached to the casing, the structure is complicated, and the overall weight becomes large due to the weight of the framework body. There were drawbacks such as the need for a structure that could sufficiently withstand the weight.

Therefore, in the present invention, in a ceiling fan-shaped indoor unit, an upper reinforcing plate is fixed to the center part of the inner surface of the casing top plate,
A lower reinforcing stay is fixed at a position facing S' to the upper reinforcing plate on the inner surface of the casing bottom plate, and two sets of fan assemblies each having a fan connected to both sides of one motor are provided. The fan top plate is divided into left and right parts between the upper reinforcing plate and the lower reinforcing stay, and the fan top plates are connected to each other by a connecting plate, thereby making it possible to create a special system unlike that seen in conventional devices. Two sets of fan assemblies can be easily installed with a small number of parts without using a framework, and the casing can also be reinforced, compared to conventional equipment. The purpose is to provide a ceiling fan-shaped indoor unit that can be made lightweight.

Hereinafter, one embodiment of the present invention will be described in detail based on the drawings.

FIG. 1 is a side cross-sectional view of a ceiling fan-shaped indoor unit according to the present invention, and FIG. 2 is a plan view thereof, which includes a casing top plate 1, casing side plates 2, 2, casing front bottom plate 3, and A heat exchanger 5 that functions as an evaporator during cooling and a condenser during heating, a heater 6 for heating the refrigerant, a fan 7, etc. are housed inside a casing consisting of a rear bottom plate 4 and the like.

Further, a blowout grille 9 having vertical blades 8, 8, . An air inlet 12 equipped with an air filter 11 is formed on the rear surface between the rear bottom plate 4 and the rear bottom plate 4 of the casing.
A drain pan 13 is disposed below the heat exchanger 5.

Furthermore, the fans 7... are connected to both sides of one motor 14, and are a set of two fans 7.
．． Two sets of fan assemblies 16 are provided, each of which is integrally constructed with a common fan top plate 15.

Next, with reference to FIGS. 1 and 3, the connection structure of the left and right end portions of the fan top plate 15 of the fan assembly 16 to the casing will be described.

As shown in FIGS. 1 and 3, an inverted-shaped upper reinforcing plate 17 is fixed to the lower surface of the casing top plate 1 at approximately the center thereof by means of welding or the like, and the heat on the inner surface of the casing top plate 1 is A heat exchanger mounting piece 18 is fixed to a portion facing the exchanger 5 using similar welding means.

Further, a rear end rising portion 3a of the casing front bottom plate 3;
Vertical portion 1 of the lower reinforcing stay 19 fixed to this front bottom plate 3
As clearly shown in FIG. 3, holes 3b and 19b are formed in the lower region of the casing 9a, respectively, for inserting the insertion tongue piece 4a formed integrally with the front end of the rear bottom plate 4 of the casing.

Then, the lower reinforcing stay 19 is erected at the rear end of the casing front bottom plate 3 so that the number holes 3b and 19b are aligned, and the tongue pieces of the casing rear bottom plate 4 are inserted into the aligned holes 3b and 19b. 4a, and the rear end rising portion 3a of the casing front bottom plate 3 and the lower reinforcing stay 19 are fixed using screws 20.

Here, the lower reinforcing stay 19 is disposed at a position S opposite to the upper reinforcing plate 17, and as is clear from FIG.
It has an inverted Z-shape with a lower horizontal fixing piece 19c protruding forward from the lower end of the vertical part 19a, and an upper horizontal fixing piece 19d protruding backward from the upper end of the vertical part 19a. The fan top plates 15.15 of the two sets of fan assemblies 16.16 are divided into left and right parts and stretched between the upper horizontal fixing piece 19d of the lower reinforcing stay 19 and the upper reinforcing plate 17. .

That is, as clearly shown in FIGS. 3 and 4, the fan top plate 15 is integrally provided with horizontal mounting pieces 15a and 15b extending in opposite directions at its upper and lower ends. The lower horizontal mounting piece 15b of the plate 15 and the upper horizontal fixing piece 19d of the lower reinforcing stay 19 are connected to each other with screws 21, while the upper horizontal mounting piece 15a of the fan top plate 15 is connected to the upper reinforcing plate 19. By connecting the vertical part of the fan top plate 15 near the horizontal mounting piece 15a and the vertical part of the upper reinforcing plate 17 with screws 22, each element 17. 19
A fan top plate 15 is stretched between them.

In this embodiment, each element 17 is
．． At the same time, the fan top plate 15 is stretched between the holes 19 and 19, and the heat exchanger mounting plate 23 is attached to the upper reinforcing plate 1 using the screws 21 and 22.
7 and the upper surface of the horizontal mounting piece 15b of the fan top plate 15 at the same time.

The heat exchanger mounting plate 23 has a substantially triangular shape that is fixed to the outer surface of the left and right tube sheets of the heat exchanger 5 using screws 24, 24. The end bent portion 23b and the lower end bent portion 23c are integrally formed by bending, and the upper end bent portion 23a is formed by screw 2.
5 to the heat exchanger mounting piece 18, the rear end bent portion 23b is fixed to the upper reinforcing plate 17 by the screws 22, and the lower end bent portion 23c is fixed to the horizontal mounting piece of the fan top plate 15 by the screws 21. It is fixed at 15b.

Next, the connection structure at the divided portion between the fan top plates 15, 15 in the two sets of fan assemblies 16 and 16 described above will be described in detail with reference to FIG.

Reference numeral 26 denotes an L-shaped connecting plate in which a vertical surface 26a and a horizontal surface 26b are connected, and a rearward-facing center partition plate 27 is integrally connected to the center of the vertical surface 26a of this connecting plate 26 by welding means. .

Then, the connecting plate 26 is arranged in the divided part of the fan top plates 15, 15, and connected to the divided part of the fan top plates 15, 15 using four screws 28 as shown in FIG. The vertical surface 26a of the connecting plate 26 is connected to each other, and the horizontal surface 26b of the connecting plate 26, the horizontal mounting piece 15a of the fan top plate 15, and the upper horizontal fixing piece 19d of the lower reinforcing stay 19 are connected to each other. These three members 26b, 15a, and 19d are integrally connected by screws 29, 29, with the members stacked one on top of the other in the vertical direction.

As is clear from the above configuration, the ceiling fan-shaped indoor unit according to the present invention has a heat exchanger 5 in the front part inside the casing.
Moreover, it is a ceiling fan-shaped indoor unit in which fans 7 are respectively disposed at the rear, and an upper reinforcing plate 17 is fixed to the center of the inner surface of the casing top plate 1, and the upper reinforcing plate 17 on the inner surface of the casing bottom plate 3 The lower reinforcing stays 19 are fixed at opposite positions, and two sets of fan assemblies 16 each having a fan 7 connected to both sides of one motor 14 are provided, and the fan top plate of these fan assemblies 16 is 1
5 is divided into right and left sides between the upper reinforcing plate 17 and the lower reinforcing stay 19, and each of these fan top plates 15, 15 is hung.
Since the two fan assemblies 16 and 16 are connected to each other by a connecting plate 26, two sets of fan assemblies 16 and 16 can be assembled with a small number of parts without using a special framework as seen in conventional devices.
The heat exchanger 5 can be easily attached, and the casing can also be reinforced, and the weight can be reduced compared to that of the conventional device.
Since the fan 7 and the fan 7 are disposed in the front and rear, various excellent effects such as being able to balance the weight can be obtained.

[Brief explanation of drawings]

Fig. 1 is a side cross-sectional view of a ceiling fan-shaped indoor unit according to the present invention, Fig. 2 is a plan view thereof, Fig. 3 is an exploded view of the main parts of Fig. 1, and Fig. 4 shows two sets of fan assemblies. Fig. 16.16 is an exploded perspective view showing the connection structure of Fig. 16; 1... Casing top plate, 3... Casing bottom plate, 5... Heat exchanger, 7... Fan, 14... Motor, 15...Fan top plate, 16...Fan assembly, 17...
・・Top reinforcing plate, 19・・Lower reinforcing plate 26・
...Connection plate.

Claims (1)

[Scope of utility model registration request] This is a ceiling fan-shaped indoor unit in which a heat exchanger 5 is disposed in the front part and a fan 7 is disposed in the rear part of the casing, and an upper reinforcing plate 17 is fixed to the center part of the inner surface of the casing top plate 1. A lower reinforcing stay 19 is fixed at a position opposite to the upper reinforcing plate 17 on the inner surface of the casing bottom plate 3, and two fan assemblies 16 each having fans 7 connected to both sides of one motor 14 are installed. The fan top plate 15 of this fan assembly 16 is divided into left and right parts and stretched between the upper reinforcing plate 17 and the lower reinforcing stay 19, and a connecting plate is installed between each of these fan top plates 15, 15. 26
A ceiling fan-shaped indoor unit characterized by being connected to each other.