JPH0712846Y2 - Air conditioner combination test decoy device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention is an air conditioner combination test decoy that is connected to an outdoor unit of a split type air conditioner as a dummy of an indoor unit to perform a combination test. Regarding the device.

(Prior Art) Conventionally, in this type of split type air conditioner, after assembling an outdoor unit equipped with a compressor, a combination test of this outdoor unit with an indoor unit having the same capacity (horsepower) is performed. There is.

That is, as shown in FIG. 3, a refrigerant pipe 1c interposing the compressor 1a and the outdoor heat exchanger 1b of the outdoor unit 1 for testing.
The pressure reducer 2a of the indoor unit 2 and the outdoor heat exchanger 1b at both ends of the
Both ends of a refrigerant pipe 2a interposing an indoor heat exchanger 2b having a heat exchange capacity equivalent to the above are connected to form a closed refrigeration cycle for circulating a refrigerant.

Next, the compressor 1a is operated to circulate the refrigeration cycle in the refrigerant in the direction of the arrow in the drawing, air-conditioning operation such as cooling is performed, and a combination test of the outdoor unit 1 and the indoor unit 2 is performed.

(Problems to be solved by the invention) However, in such a conventional split type air conditioner combination test method, at the time of production of the air conditioner, the outdoor unit 1 and the same capability as the outdoor unit 1 ( It is necessary to perform pair production in which every other indoor unit 2 having horsepower is flowed to the assembly line for production. For this,
There is a problem that the workability is low due to a large demerit at the production site, such as an imbalance in the work of each process in the assembly line of the outdoor unit 1 and the indoor unit 2, an increase in the number of parts management points, and the accompanying securing of a parts storage space. .

After the above combination test, the heat exchanger for the indoor unit, which is a product
Since water droplets adhere to 2b and the like, there is a problem that workability is low such that draining work for removing the water droplets is required.

Therefore, an object of the present invention is to provide an air conditioner combination test decoy device that can improve the workability of the air conditioner assembly work.

[Constitution of device]

(Means for Solving Problems) The present invention uses a decoupling device for an air conditioner combination test, which is a dummy of an indoor unit, in a combination test of an outdoor unit for testing, without using an indoor unit of the product. This is done and is configured as follows.

A plurality of unit heat exchangers having a predetermined unit capacity, and a plurality of refrigerant flow passages by connecting a pressure reducer to each of the unit heat exchangers, and a solenoid valve for selectively switching the plurality of refrigerant flow passages, An outdoor fan connected to the refrigerant flow path, comprising a blower fan that blows air to the unit heat exchanger, and a controller that controls the rotation speed of the blower fan to finely adjust the heat exchange capacity of the unit heat exchanger. The refrigerant passages are selectively switched according to the heat exchange capacity of the machine, and the rotation speed of the blower fan is controlled.

(Operation) When the combination test is performed by connecting the outdoor unit of the split type air conditioner as a dummy of the indoor unit and performing a combination test, first, the heat exchange capacity of the decoupling device for the air conditioner combination test is changed to the heat exchange capacity of the outdoor unit. The selection of the refrigerant flow path and the rotation speed of the blower fan are controlled so as to match. After that, the outdoor unit is connected to the decoy device for the air conditioner combination test to perform the combination test.

For this reason, during the air conditioner combination test, the refrigerant from the outdoor unit flows into the heat exchanger of the air conditioner combination test decoy device having a heat exchange capacity almost equal to the heat exchange capacity thereof to exchange heat. It

Therefore, the decoupling apparatus for an air conditioner combination test according to the present invention can perform a test in which its heat exchange capacity is matched to the capacity of the outdoor unit, and a single unit can perform a combination test with an outdoor unit having various capacities. In addition, since the indoor unit which is a product is not required, it is not necessary to produce the outdoor unit and the indoor unit in pairs.

As a result, the workability of assembling the air conditioner can be improved.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

FIG. 1 is a system diagram of essential parts of an embodiment of the present invention, and FIG. 2 is an external perspective view thereof. Reference numeral 11 is detachably connected to an outdoor unit of a split type air conditioner as a dummy of an indoor unit. This is a decoy device that performs a combined test of this outdoor unit.

The decoy device 11 is configured as shown in FIG. 1, and has a refrigerant pipe 12 that is detachably connected to a refrigerant outlet and a refrigerant inlet of a refrigerant pipe of an outdoor unit (not shown). Is provided with a heat exchanger 13.

The heat exchanger 13 includes, for example, four unit heat exchangers 13a to 13d each having a capacity of 1 HP (horsepower), and each unit heat exchanger 13
Each of the refrigerant inlets and outlets of a to 13d is connected to a respective four-branch branch end of an inlet-side branch pipe 14 and an outlet-side branch pipe 15 which are four-branch branch pipes. Each main pipe part of is connected to each inner end part of the refrigerant pipes 12, 12.

In addition, each branch pipe portion of the inlet side branch pipe 14 has an inlet valve 16a to 16d formed of a solenoid valve and a capillary tube 17 which is a pressure reducer.
a to 17d are respectively provided, and outlet valves 18a to 18d, which are electromagnetic valves, are provided to the outlet side branch pipe 15 so as to be laterally paired with the inlet valves 16a to 16d.

Each inlet, outlet valve 16a ~ 16d, 18a ~ 18d is electrically connected to a controller (not shown), each inlet by the operation of this controller,
The outlet valves 16a to 16d and 18a to 18d are controlled to open and close, and the refrigerant pipe 1
2 unit heat exchangers 13a to 13d for circulating the refrigerant flowing in from
Can be appropriately selected.

Therefore, for example, when the capacity of the outdoor unit is 1 HP, the inlet of the decoy device 11 and the required pair of outlet valves 16a to 16d and 18a to 18d are opened to open the required unit heat exchanger, for example, one unit of 13a. By selecting, the capacity of the decoy device 11 can be adapted to the capacity of the outdoor unit, and when the capacity of the outdoor unit is 2HP, two required unit heat exchangers 13a to 13d should be selected. The required inlet and outlet valves, for example, two pairs of 16a, 16b, 18a and 18b may be opened.

And a blower fan that blows air to each unit heat exchanger 13a to 13d
19 is electrically connected to a controller (not shown) via an inverter 20, and is configured to appropriately control the rotation speed of the blower fan 19 by operating the controller, and the heat exchange capacity of the heat exchanger 13 is controlled by the blower fan 19. Is finely adjusted.

That is, when the capacity of the outdoor unit has an intermediate value such as 1.5 HP, one of the required unit heat exchangers 13a (1 HP) is selected and the fan rotation speed is appropriately controlled to generate heat. The heat exchange capacity of the exchanger 13 can be adjusted to 1.5 HP.

Next, the operation of this embodiment will be described.

First, the refrigerant inlet and outlet ends of the refrigerant pipe of the outdoor unit to be subjected to the combination test are detachably connected to the refrigerant outlet and inlet end of the refrigerant pipe 12 of the decoy device 11.

Next, required inlet and outlet valves 15a to 15d and 16a to 16d to match the capacity (horsepower) of the outdoor unit with the capacity of the decoy device 11.
And the fan fan 19 is started and the rotation speed is selected.

When the capacity of the outdoor unit is, for example, 2 HP, two pairs of inlet valves and outlet valves, for example, 15a, 15b, 16a and 16b are controlled so that the required unit heat exchangers, such as 13a and 13b, are brought into conduction. Select and open with a container.

Next, when the compressor of the outdoor unit is started, the refrigerant from the outdoor heat exchanger of the outdoor unit is introduced into the refrigerant pipe 12 of the decoy device 11 as shown by the arrows in FIGS. 1 and 2, and After passing through the four-branch inlet branch pipe 14, the two open inlet valves, for example, 15a and 15b are guided to reduce the pressure through the two capillary tubes 14a and 14b, and then the blower fan 1
It is introduced into the two unit heat exchangers 13a and 13b being blown by 9 and heat is exchanged there. The heat exchange capacity here is
It is a total of 2 horsepower of two unit heat exchangers 13a and 13b having a capacity of 1HP, and is adapted to the capacity of the outdoor unit.

The refrigerant that has exchanged heat with the two unit heat exchangers 13a and 13b is guided to the outlet valves 16a and 16b that are open in the outlet side branch pipe 15,
Further, it is returned to the refrigerant inlet of the refrigerant pipe of the outdoor unit through the refrigerant pipe 12.

Therefore, according to the present embodiment, the heat exchange capacity of the decoy device 11 can be appropriately adapted to the capacity of the outdoor unit.
By the decoy unit 11 of the table, various combination tests of outdoor units having various capacities can be performed, and it is not necessary to use the indoor unit of the product.

Therefore, it is not necessary to perform pair production of the outdoor unit and the indoor unit, and the work balance (process balance) of each process in these assembly lines can be easily achieved, and the workability can be improved.

Moreover, since the combination test of the outdoor unit can be performed without using the indoor unit of the product, it is possible to omit the draining work of the indoor unit which is performed in the conventional example using the indoor unit.

[Effect of device]

As described above, according to the present invention, the combination test of the outdoor unit is performed by the decoy device capable of adapting the capacity of the heat exchanger to the capacity of the outdoor unit. No need to use.

Therefore, there is no need for pair production in which every other unit and an indoor unit having the same capacity as this outdoor unit are flowed to the assembly line for production, and the work balance of each process in these assembly lines can be achieved. It is easy and the workability can be improved.

[Brief description of drawings]

FIG. 1 is a system diagram of a main part of an embodiment of an air conditioner combination test decoy device according to the present invention, and FIG. 2 is an external perspective view of FIG.
FIG. 3 is a refrigeration cycle diagram of a split type air conditioner for explaining a conventional air conditioner combination test method. 11 …… Decoy device, 12 …… Refrigerant piping, 13 …… Heat exchanger, 13a
〜13d …… Unit heat exchanger, 14a ～ 14d …… Capillary tube, 19 …… Blower fan.

Claims (1)

[Scope of utility model registration request] 1. A decoupling apparatus for an air conditioner combination test, which is connected to an outdoor unit of a split type air conditioner as a dummy of an indoor unit to perform a combination test, and a plurality of unit heat exchangers having a predetermined unit capacity. , A plurality of refrigerant flow passages are respectively connected to the unit heat exchanger to form a plurality of refrigerant passages, a solenoid valve for selectively switching the plurality of refrigerant passages, and a blower fan for blowing air to the unit heat exchangers, And a controller for controlling the rotation speed of the blower fan to finely adjust the heat exchange capacity of the unit heat exchanger, depending on the heat exchange capacity of the outdoor unit connected to the refrigerant flow path, the refrigerant flow path Is selectively switched, and
An air conditioner combination test decoy device characterized in that the rotation speed of a blower fan is controlled.