JPH0587436U - Air conditioner outdoor unit - Google Patents

Abstract

(57) [Abstract] [Purpose] The workability of the flare nuts 21, 31 and valve lids 23, 33 of the liquid-side and gas-side pipe joint members 2 and 3 is reduced, and the workability thereof is reduced. Improve. [Structure] Flare nuts 21 and 3 screwed into the respective pipe connection ports 20 and 30 of the liquid side pipe joint member 2 and the gas side pipe joint member 3.
1 and the valve lids 23 and 33 screwed into the valve operating portions 24 and 34.
Are formed so that the engagement dimensions A when operating with a tool are all the same.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an outdoor unit for an air conditioner having a liquid side pipe joint member and a gas side pipe joint member.

[0002]

[Prior Art]

 A compressor, an outdoor heat exchanger, an expansion valve, and the like are arranged in an outdoor unit of a conventional air conditioner, and a pair of liquid side pipe and gas side pipe that are connected for communication with the indoor unit are provided. A pipe joint member is connected to the ends of the pair of pipes, and each pipe joint member protrudes from the casing of the outdoor unit and also has a pipe connection port that communicates with the indoor unit. It has a built-in valve part (liquid closing valve, gas closing valve) that opens and closes this pipe connection port.

In the liquid side pipe and the gas side pipe, the diameter of the gas side pipe is made larger than that of the liquid side pipe in consideration of the flow resistance of the refrigerant between the indoor unit and the outdoor unit.

[0004]

[Problems to be solved by the device]

 However, in the outdoor unit of the air conditioner, since the gas-side pipe and the liquid-side pipe have different diameters, the dimensions of the flare nut that connects the pipes by screwing into the pipe connection port of each pipe joint member, The size of the valve cover that protects the operating part by screwing it into the operating part that operates the valve part also differs depending on the diameter of the pipe. Therefore, for example, when installing the outdoor unit, when operating each of the pipe joint members, prepare a plurality of tools that match the above dimensions and change the tools for each component of different dimensions. Therefore, there was a problem that it required a lot of trouble and poor workability.

The present invention has been made in order to solve the above-mentioned conventional drawbacks, and an object thereof is to provide an outdoor unit of an air conditioner capable of improving workability by eliminating the need for tool replacement. Especially.

[0006]

[Means for Solving the Problems]

 Therefore, in the outdoor unit of the air conditioner according to claim 1, the pipe connection ports 20 and 30 of the liquid side pipe joint member 2 and the gas side pipe joint member 3 are led out from the casing 1, and the pipe joint members 2 are provided. In the outdoor unit of the air conditioner, in which the valve portions 22 and 32 for opening and closing the pipe connection ports 20 and 30 are built in 3 respectively, a flare screwed to the pipe connection ports 20 and 30 is provided. It is characterized in that the nuts 21 and 31 and the valve lids 23 and 33 of the valve portions 22 and 32 are formed so that the engagement dimensions A when operating with a tool are all the same.

In the outdoor unit for an air conditioner according to a second aspect of the present invention, the gas side pipe joint member 3 has a service port portion 40, and a service port lid 41 screwed to the service port portion 40 is also provided. It is characterized in that the combined dimension A is formed to be the same as the flare nuts 21 and 31 and the valve lids 23 and 33.

[0008]

[Action]

 In the outdoor unit for an air conditioner according to claim 1, the flare nuts 21 and 31 and the valve lids 23 and 33 of the liquid side pipe joint member 2 and the gas side pipe joint member 3 are engaged with each other when operating with a tool. Since the dimensions A are all the same, it is not necessary to prepare a plurality of tools having different engagement dimensions to operate the respective pipe joint members 2 and 3, and the workability is improved.

Further, in the outdoor unit of the air conditioner according to the second aspect, the service port lid 41 of the service port portion 40 of the gas side pipe joint member 3 is also formed so that the engagement dimension A is the same. The workability is further improved.

[0010]

【Example】

 Next, a specific embodiment of the outdoor unit of the air conditioner of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view for disassembling and explaining a mounting state of each pipe joint member mounted on a side surface of a box-shaped casing and an assembly structure of main components of each pipe joint member. The figure shows the state before the indoor unit was connected to the refrigerant communication pipe.

In the figure, 1 is a box-shaped casing of the outdoor unit. Reference numeral 2 is a liquid side pipe joint member, and 3 is a gas side pipe joint member. A mounting portion projects from the side surface of the box-shaped casing 1, and the pipe joint members 2 and 3 are fixed to the mounting surface 6 of the mounting portion with screws or the like. The pipe joint members 2 and 3 mainly include pipe connection ports 20 and 30, hexagonal flare nuts 21 and 31, hexagonal valve lids 23 and 33, valve operating portions 24 and 34, flare blind lid 25, and flare blind lid 25. 35, and the gas side pipe joint member 3 further includes a service port portion 40 and a service port lid 41.

On the other hand, inside the box-shaped casing 1, a compressor, a four-way switching valve, an outdoor heat exchanger, an outdoor fan, an expansion valve, etc., which are not shown, are arranged. Further, inside the box-shaped casing 1, a liquid pipe of a refrigerant communicating with the indoor heat exchanger in the indoor unit and the outdoor heat exchanger via the expansion valve, the indoor heat exchanger and the four-way switching valve. A pair of refrigerant gas pipes are provided for connecting the compressors via the.

FIG. 2 is a vertical sectional view of the liquid side pipe joint member 2, and FIG. 3 is a vertical sectional view of the gas side pipe joint member 3.

First, the liquid side pipe joint member 2 will be described in detail with reference to FIG. Reference numeral 4 is a liquid side pipe on the outdoor unit side through which the refrigerant liquid flows, and 8 is an end portion thereof. The pipe insertion port 26 of the liquid side pipe joint member 2 is externally fitted to this end portion 8 and brazed to establish a communication connection.

Reference numeral 20 denotes a pipe connection port. Reference numeral 21 is a hexagonal flare nut. The flare nut 21 is externally fitted and screwed into the pipe connection port 20, and the flare end of the refrigerant communication pipe leading to the indoor unit is pressure-contacted for communication connection.

Reference numeral 22 is a valve portion. The valve portion 22 includes a valve body 60, a valve rod 61, and an O-ring 62. A valve rod 61 is internally screwed into the valve body 60, and a bottomed hexagonal hole 63 is bored in the shaft center of the valve rod 61. A tool such as a hexagon wrench can be inserted into the hexagon hole 63 and rotated to move the valve rod 61 in the vertical direction. In the figure, the lower end of the valve rod 61 is closed by abutting against a valve seat formed in the flow path bent in an inverted L shape. When the valve rod 61 moves upward, the flow path is opened, and the pipe connection port 20 and the end 8 of the liquid side pipe 4 communicate with each other. Further, a groove is formed on the outer periphery of the valve rod 61 near the upper end portion, and an O-ring 62 is fitted on the groove.

Reference numeral 23 is a hexagonal valve lid. The valve lid 23 is externally fitted and screwed to the operating portion 24 for operating the valve rod 61, and protects the operating portion 24.

Reference numeral 25 is a flare blind lid. The flare blind lid 25 is removed when the outdoor unit is installed and the refrigerant communication pipe leading to the indoor unit is connected.

Next, the gas side pipe connecting member 3 will be described with reference to FIG. In the figure, reference numerals 30 to 36 are the same as or corresponding to reference numerals 20 to 26 in FIG. 2, and reference numerals 70 to 73 in FIG. 3 are the same as or equivalent to 60 to 63 in FIG. In addition to the above, the gas side pipe connecting member 3 has a service port portion 40, and the service port portion 40 communicates with the end portion 9 of the gas side pipe 5. 41 is a hexagonal service port lid. The service port lid 41 is externally fitted and screwed to the service port portion 40 to close the service port portion 40. A valve core 42 is fitted in the service port section 40.

FIG. 4 is a view of the flare nut 31 as seen from the direction of arrow B. It shows that the engagement dimension is A when the hexagonal flare nut 31 is operated using a tool such as a spanner. Although the same figure illustrates the flare nut 31 of the gas side pipe, the flare nut 21 of the liquid side pipe, the valve lids 23 and 33, and the service port lid 41 are also hexagonal and have the same engagement dimension A. Is.

The hexagonal flare nuts 21 and 31 and the valve lids 23 and 33 have the same engagement dimension A when operating with a tool such as a spanner, so that a plurality of tools having different engagement dimensions A can be used. There is no need to prepare and replace these to operate, and it does not take time for various work.

The specific embodiments of the outdoor unit of the air conditioner of the present invention have been described above, but the present invention is not limited to the above embodiments, and various modifications can be made within the scope of the present invention. It is possible to carry out. For example, in the above embodiment, a hexagonal flare nut and a valve lid are illustrated, but other shapes such as a square shape may be used.

[0023]

[Effect of the device]

 As described above, in the outdoor unit for an air conditioner according to claim 1, even if the diameters of the liquid side pipe and the gas side pipe are different, each flare nut and valve lid of each pipe joint member is operated with a tool. Since all the engaging dimensions are the same, there is no need to prepare multiple tools and change tools for different engaging dimensions as in the conventional example. Is improved.

Further, in the outdoor unit for an air conditioner according to claim 2, the service port lid of the gas side pipe joint member is formed so that the engaging dimensions are the same, so the workability is further improved. To do.

[Brief description of drawings]

FIG. 1 is a perspective view illustrating a mounting state and an assembling structure of each pipe joint member according to an embodiment of the present invention.

FIG. 2 is a vertical sectional view of a liquid side pipe joint member of the above embodiment.

FIG. 3 is a vertical sectional view of a gas side pipe joint member of the above embodiment.

FIG. 4 is a front view of a flare nut for explaining the engagement dimension of the above embodiment.

[Explanation of symbols]

 1 Casing 2 Liquid Side Pipe Joint Member 3 Gas Side Pipe Joint Member 20 Pipe Connection Port 21 Flare Nut 22 Valve Portion 23 Valve Lid 24 Valve Operation Portion 30 Pipe Connection Port portion 31 Flare Nut 32 Valve Portion 33 Valve Lid 34 Valve Operation Portion 40 Service Port 41 Service Port Lid A Engagement Dimension

Claims (2)

[Scope of utility model registration request] 1. A pipe connection port (2) between a liquid side pipe joint member (2) and a gas side pipe joint member (3) from a casing (1).
0) (30) is derived, and each pipe joint member (2) (3)
In the outdoor unit of an air conditioner, the valve units (22) and (32) for opening and closing the pipe connection ports (20) and (30) are respectively incorporated into the pipe connection port units (20).
Flare nuts (21) and (31) screwed to (30),
An air conditioner characterized in that the valve lids (23) and (33) of the valve portions (22) and (32) are formed so that the engagement dimensions (A) when operating with a tool are all the same. Outdoor unit of the machine. 2. The gas side pipe joint member (3) has a service port portion (40), and the service port portion (4) is provided.
The service port lid (41) that is screwed into the (0) is also formed so that its engagement dimension (A) is the same as the flare nuts (21) (31) and valve lids (23) (33). The outdoor unit for an air conditioner according to claim 1, wherein: