JPS6231795Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a spot type air conditioner that connects a duct to the outlet of a casing containing a heat exchanger and a fan, thereby enabling local air conditioning of a plurality of locations.

This type of air conditioner is shown in Japanese Utility Model Application No. 51-95250, and as shown in FIG. 5, a heat exchanger and a fan (not shown) are installed in a casing 50 having a suction port 51. In addition, a blowout chamber is provided on the blowout side of the fan, and the blowout port 52 of the blowout chamber is provided on the blowout side of the fan.
, a connecting device 5 consisting of a short pipe 56 and an elbow 57
3 and 54 are provided, and each of these connectors 53 and 54 has a
It is configured such that ducts (not shown) that guide blown air to a plurality of air conditioning locations are connected to each of the ducts separately.

Therefore, according to this air conditioner, conditioned air can be blown out to a plurality of air conditioning locations through each of the ducts, but no means is provided to adjust the volume of conditioned air supplied to each duct. Not only are the ducts connected directly to the casing 50 through the connectors 53 and 54, respectively,
Firstly, if the length of each duct is different, such as when the distance from the casing 50 to the air conditioning location is different,
The flow path resistance differs for each duct, and as a result, even if each duct attempts to supply the same air volume, the air volume supplied by each air conditioning location will differ, resulting in mutually comfortable air conditioning. There was a problem that prevented me from doing this.

Second, when the air conditioning loads vary in size at each of the air conditioning locations, even if an attempt is made to mutually adjust the air volume to each air conditioning location to match the respective loads, such air volume adjustment may not be possible. It was hot too.

Furthermore, thirdly, in the conventional one, each duct (not shown) is connected to the casing 50 of the air conditioner.
For example, when the air conditioner is installed outdoors and the duct is led indoors through a wall that partitions the indoor and outdoor areas, the Each duct must be arranged by providing a plurality of through holes in the wall corresponding to the number of said ducts, or by providing a large through hole that can pass through a plurality of ducts, and as a result,
There was a problem in that duct placement was time consuming and increased costs.

The present invention was developed in view of the above-mentioned conventional problems, and its purpose is to use a branch joint that connects multiple ducts, and to provide an air volume adjustment damper on the branch path of the joint to each duct. This makes it possible to appropriately adjust the air volume to multiple air conditioning locations, and even when installing the air conditioner outdoors using multiple ducts, the duct piping can be easily done and multiple air conditioning The point is that when the locations are in the same direction, the common flow path portion can be formed by a single duct.

The configuration of the present invention is to connect the duct to the outlet of the casing containing the heat exchanger and fan,
A spot-type air conditioner capable of air conditioning multiple locations, in which a branch joint having a plurality of branch duct connections is provided, and an air volume adjustment damper is supported at a variable inclination angle in each branch path of the branch joint. At the same time, each of these dampers is provided with an operating tool that can be operated externally, and by appropriately setting each inclination angle of each of the air volume adjustment dampers, the air volume to each air conditioning location can be mutually adjusted. In addition, by using the branch joint, a common flow path for the blown air from the outlet to the group of air conditioning points can be formed with a single duct. be.

Hereinafter, embodiments of the present invention will be described based on the drawings.

The spot type air conditioner of this embodiment shown in FIGS. 1 to 4 has a user side unit separated from a heat source side unit (not shown), and this user side unit 1.
is placed outside the room, and two locations inside the room can be air-conditioned using duct piping.

In FIG. 1, 2 is the user unit 1.
A heat exchanger 3, a fan 4, a fan motor 5, and a drain pan 6 are housed inside the casing. Further, a suction port 7 is provided on the front surface of the casing 2, and three air outlets 9, 9 are provided on the adjacent front, top, and side surfaces of the casing 2 for making the drawing direction of the duct 8 variable in three directions. , 9 are formed.

Incidentally, the air outlets 9 which are not used are each closed with a blind plate 10. Although not shown, the user unit 1 is connected via a refrigerant pipe to a heat source unit that includes a compressor, a heat exchanger, a fan, and a fan motor.

Then, the usage side unit 1 sucks air through the suction port 7, heats or cools the air with the heat exchanger 3, and then sends the air into the blowout chamber 12 via the fan 4. 9 to the outside of the casing 2, that is, to the duct 8.

Therefore, in this embodiment, the duct 8 is connected to the air outlet 9, and the duct 8 and
Branch ducts 14 and 15 that respectively guide the blown air to the two air conditioning locations are connected by a branch joint 16.

Furthermore, as shown in FIGS. 2 to 4, the branch joint 16 has a bifurcated structure, and has a connecting part 17 that connects the duct 8 on the outlet 9 side, and branch passages 18 and 19 to the branch ducts 14 and 15. is forming. Each branch duct 1 is connected to the branch paths 18 and 19.
4 and 15 are provided, and disc-shaped air volume adjustment dampers 22 and 23 having a smaller diameter than the inner diameter of each branch passage 18 and 19 are installed inside. Further, the dampers 22 and 23 are supported by support members 24 and 25 to have a variable inclination angle, and the inclination angle can be changed by operating operating tools 26 and 27 connected to the support members 24 and 25. It can be changed from the outside. Furthermore, 28,
Reference numeral 29 denotes screws provided on the operating tools 26, 27. By screwing the screws 28, 29 into any of a plurality of screw holes 32, 32... provided on the fixing plates 30, 31, the damper 22, 23 can be fixed at a desired angle of inclination.

Next, the effects of this embodiment will be explained.

First, when the distances between two indoor air conditioning locations and the branch joint 16 are different, and therefore the lengths of the branch ducts 14 and 15 are different, and the same air volume is supplied to each air conditioning location. Explain. Now, assuming that the branch duct 14 is shorter than the other branch ducts 15, the flow path resistance of each branch duct 14, 15 will be greater in the longer branch duct 15 than in the duct 14. Therefore, the air volume adjustment damper 22 on the branch duct 14 side is fixed with a large inclination angle α, as shown in FIGS.
3, the inclination angle α is fixed at 0 degrees so that the flow path resistance is minimized. (In addition, branch duct 15
(The same applies if the branch duct 14 is shorter than the other branch duct 14) By doing this, each branch duct 14, 1
Each duct 14, 15 depending on the length of the duct 5
The difference in flow path resistance can be eliminated by increasing or decreasing the resistance using the dampers 22 and 23. Therefore, even though the branch ducts 14 and 15 have different duct lengths, the same amount of air can be supplied to each air conditioning location.

Further, when the branch ducts 14 and 15 have the same duct length and the air volume supplied to each air conditioning location is the same, the inclination angles α and α' of the air volume adjustment dampers 22 and 23 should both be set to 0 degrees. It's okay.

Similarly, when increasing the amount of air supplied to one air conditioning location than the other, if the duct lengths are approximately the same, the inclination angle of the damper (22 or 23) on the side where the amount of supply is to be increased is changed to that of the other damper. (23
Alternatively, the angle of inclination may be adjusted to be smaller than the inclination angle of 22).

Furthermore, since this embodiment uses the branch joint 16 as described above, the common flow path for the blown air from the user unit 1 installed outdoors to the room where the air conditioning area (air conditioning area group) is located is one line. Therefore, only one duct hole 34 is required in the wall 33 that separates the indoor and outdoor spaces, and the diameter of the duct hole 34 can be as small as that of one duct 8. Not only can the number of man-hours be reduced, but the appearance can also be improved.

In the above embodiment, the branch joint 16 is connected to the air outlet 9 through the duct 8, but if the user unit 1 is installed indoors, the branch joint 16 may be connected directly to the air outlet 9. You can also do that.

Further, the branch joint 16 may be provided with three or more branch passages to connect three or more ducts.

As described above, the present invention includes the heat exchanger 3, the fan 4
This is a spot type air conditioner in which a duct is connected to the outlet 9 of a casing 2 containing a built-in duct, and air conditioning is possible at multiple locations, and the branch joint 16 has connection parts 20 and 21 for a plurality of branch ducts 14 and 15. are provided in each of the branch passages 18 and 19 of the branch joint 16 to support air volume adjustment dampers 22 and 23 with variable inclination angles, and each damper 22 and 23 is provided with operating tools 26 and 27 that can be operated externally. As a result, the difference in flow path resistance between the ducts 14 and 15 due to the length of each branch duct 14 and 15 can be eliminated by increasing or decreasing the resistance using the dampers 22 and 23. Even if the branch ducts 14 and 15 have different duct lengths, the same amount of electricity can be supplied to each air conditioning location.

In addition, increasing the amount of air supplied to a specific air-conditioned location can be easily achieved by adjusting the inclination angle of the damper (22 or 23) that increases the amount of air supplied and the inclination angle of the other damper (23 or 22).

Furthermore, by using the branch joint 16,
Since a single duct 8 can form the air passage from the air outlet 9 of the indoor unit 1 on the user side to multiple air-conditioning points, the duct can be arranged easily and at low cost. .

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view of an embodiment of the present invention, Fig. 2 is an enlarged front view of the main parts, Fig. 3 is a plan view of the same, Fig. 4 is a side view of the same, and Fig. 5 is a conventional example. It is a perspective view with a part notched away showing. 2... Casing, 3... Heat exchanger, 4... Fan, 9... Outlet, 14, 15... Branch duct, 16... Branch joint, 18, 19... Branch pipe,
20, 21... Connection portion, 22, 23... Air volume adjustment damper, 26, 27... Operation tool.

Claims (1)

[Scope of utility model registration request] Casing 2 with built-in heat exchanger 3 and fan 4
This is a spot type air conditioner in which a duct is connected to the outlet 9 of the air outlet 9 to enable air conditioning in multiple locations, and a branch joint 16 having connection portions 20, 21 of a plurality of branch ducts 14, 15 is provided to connect the branch ducts 14, 15. Air volume adjustment dampers 22 and 23 are installed in each branch path 18 and 19 of the joint 16.
The dampers 22 and 23 are each provided with an operating tool 2 that can be operated externally.
6, 27. A spot type air conditioner.