JP2002106885A - Expansion valve holding device for air conditioner outdoor unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a lead for an expansion valve driving coil from contacting components such as piping and consequently being broken or generating noises in an expansion valve holding device for an air conditioner outdoor unit by maintaining the strength of the unit and reducing the vibration thereof. SOLUTION: The inlet and outlet pipes 2a and 2b of an expansion valve 1 are fixed to pipes 3a and 3b adjacent to the inlet and outlet pipes 2a and 2b through protective bushings 5a and 5b, respectively, by way of a band 4a or a leaf spring 4b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an expansion valve holding structure for an air conditioner outdoor unit.
The means and the parts used reduce the strength and reduce the vibration, and prevent the coil lead wires for driving the expansion valve from coming into contact with parts such as pipes to prevent breakage and abnormal noise.

[0002]

2. Description of the Related Art An expansion valve constituting a refrigeration cycle of an air conditioner outdoor unit has an enlarged plan view of a refrigeration cycle portion of the conventional air conditioner outdoor unit shown in FIG. As shown in an enlarged front view of a refrigeration cycle portion of the conventional air conditioner outdoor unit in FIG. 8, a protection bushing made of rubber or the like is provided on an expansion valve fixing plate 9 fixed to strong parts constituting a frame of the outdoor unit. 10 was fixed through.

In order to prevent the drive coil lead wire 7 of the expansion valve from coming into contact with parts such as piping, a band 11 for fixing the drive coil lead wire of the expansion valve or a hook-shaped special plate to be hooked is provided. Was used.

[0004]

However, the prior art has the following problems.

[0005] First, in order to hold the expansion valve and prevent it from moving downward, it is necessary to provide an expansion valve fixing plate for fixing the expansion valve to a strong component constituting the skeleton of the outdoor unit.

Further, in order to suppress the vibration of the expansion valve, the expansion valve must be fixed through a protective bushing made of rubber.

Further, in order to prevent the drive coil lead wire of the expansion valve from coming into contact with parts such as piping, a band for fixing the drive coil lead wire of the expansion valve or a claw-shaped special plate for hooking is used. Was.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has been made in consideration of the above-mentioned problems. The present invention is directed to an expansion valve fixed to a rigid component constituting an outdoor unit skeleton by holding an expansion valve, suppressing downward movement and vibration. It is realized without fixing through a fixing plate and a protective bushing made of rubber.

Further, it is possible to prevent the drive coil lead wire of the expansion valve from coming into contact with parts such as piping without using a band for fixing the drive coil lead wire of the expansion valve or a claw-shaped special plate to be hooked. To be realized.

[0010]

According to a first aspect of the present invention, there is provided an expansion valve holding plate, which does not require an expansion valve fixing plate for fixing the expansion valve to a strong part constituting an outdoor unit frame. Each of the inlet pipe and the outlet pipe of the expansion valve is bound by a pipe and a band routed in the vicinity thereof to hold and fix the expansion valve.

[0011] Similarly, in order to eliminate the need for an expansion valve fixing plate for fixing the expansion valve to a strong component constituting the outdoor unit skeleton in holding the expansion valve in the above-mentioned problem, it is preferable that the expansion valve be fixed. The expansion valve is held and fixed by fixing the inlet pipe and the outlet pipe of the expansion valve to the piping routed in the vicinity thereof by a leaf spring.

[0012] Similarly, in order to avoid the need for an expansion valve fixing plate for fixing the expansion valve to a strong part constituting the outdoor unit skeleton in holding the expansion valve in the above-mentioned subject, it is preferable that the expansion valve be fixed. Steps or bends are provided in pipes for holding and fixing the expansion valve by binding the pipes around the vicinity of the inlet pipe and the outlet pipe of the expansion valve with a band or fixing with a leaf spring, and providing a step or bend under the expansion valve fixture. It is characterized in that movement in the direction is prevented.

In order to suppress the vibration of the expansion valve, it is not necessary to fix the expansion valve via a special plate for fixing the expansion valve and a protective bushing made of rubber, which is fixed to a strong part constituting the frame of the outdoor unit. In order to realize the above, the inlet pipe and the outlet pipe of the expansion valve according to claim 4 are respectively banded through a piping routed in the vicinity thereof and a protective bushing made of a material having excellent vibration absorption such as rubber. Or fixed by a leaf spring.

In order to prevent the drive coil lead wire of the expansion valve from coming into contact with parts such as pipes, a band or a hook-shaped special hook for fixing the drive coil lead wire of the expansion valve. A leaf spring for fixing the inlet pipe and the outlet pipe of the expansion valve according to claim 5 via the protective piping and the piping routed in the vicinity thereof in order to realize without using a plate. A claw is provided at a position between the valve and the adjacent pipe to hook the coil lead wire for driving the expansion valve.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an enlarged plan view of a refrigeration cycle portion of the air conditioner outdoor unit according to the present embodiment. FIG.
It is the front view which expanded the refrigeration cycle part of the air conditioner outdoor unit of this invention. FIG. 3 is an enlarged view of the vicinity of the expansion valve of FIG. FIG. 4 is a sectional view taken along line AA of FIG.

1 to 4, 1 is an expansion valve, 2a is an expansion valve inlet pipe, 2b is an expansion valve outlet pipe, 3a is a pipe near an expansion valve inlet pipe, 3b is a pipe near an expansion valve outlet pipe, and 4a is a pipe near the expansion valve outlet pipe. A band that fixes the expansion valve inlet pipe 2a to the pipe 3a near the expansion valve inlet pipe, 4b is a leaf spring that fixes the expansion valve outlet pipe 2b to the pipe 3b near the expansion valve outlet pipe, and 5a is an expansion valve inlet pipe 2
a, a protective bushing for fixing a to the pipe 3a near the expansion valve inlet pipe with a band 4a; 5b, a protective bushing for fixing the expansion valve outlet pipe 2b to the pipe 3b near the expansion valve outlet pipe with the band 4b; A step provided below the protective bushing 5a of the pipe near the inlet pipe, 6b is a bend provided below the protective bushing 5b of the pipe near the outlet pipe of the expansion valve,
7 is a coil lead wire for driving the expansion valve, 8 is the leaf spring 4
b is a hook for fixing and hooking a drive coil lead wire of the expansion valve provided at a position between the expansion valve outlet pipe 2b and the pipe 3b near the expansion valve outlet pipe.

FIG. 5 is an enlarged front view of the protective bushing 5a of the present invention. FIG. 6 is an enlarged front view of the protective bushing 5b of the present invention.

[0019]

The present invention has the following effects because it is configured as described above.

That is, in the expansion valve holding structure of the present invention, the expansion valve is held by fixing the expansion valve by binding the inlet pipe and the outlet pipe of the expansion valve by a pipe and a band routed in the vicinity thereof. In addition, in order to prevent downward movement, there is an effect that an expansion valve fixing plate for fixing to a strong component constituting the outdoor unit skeleton is not required.

Further, in the expansion valve holding structure according to another aspect of the present invention, the expansion valve is held and fixed by fixing an inlet pipe and an outlet pipe of the expansion valve to a pipe routed in the vicinity thereof by a leaf spring. This has the effect of eliminating the need for an expansion valve fixing plate for fixing the expansion valve to a strong component constituting the outdoor unit skeleton in order to hold the expansion valve and prevent downward movement.

In the expansion valve holding structure according to another aspect of the present invention, the expansion valve is fixed by binding the inlet pipe and the outlet pipe of the expansion valve around the pipe and the band with a band or a leaf spring. A step or a bend is provided in the pipe to be held and fixed, which has an effect of preventing the expansion valve from moving downward.

In the expansion valve holding structure according to another aspect of the present invention, each of the inlet pipe and the outlet pipe of the expansion valve is provided with a piping routed in the vicinity thereof and a protection made of rubber or other material having excellent vibration absorption properties. The effect of suppressing the vibration of the expansion valve is achieved by binding with a band or fixing with a leaf spring via bushing.

Further, in a leaf spring for fixing the inlet pipe and the outlet pipe of the expansion valve according to another invention of the present application via the pipe whose vicinity is routed and the protective bushing, the expansion valve and the near pipe are connected to each other. By having a claw that fixes and hooks the drive coil lead wire of the expansion valve at a position between
This has the effect that a band or a special claw-shaped plate for hooking a new coil coil wire for driving the expansion valve is unnecessary.

[Brief description of the drawings]

FIG. 1 is an enlarged plan view of a refrigeration cycle portion of an air conditioner outdoor unit according to an embodiment of the present invention.

FIG. 2 is an enlarged front view of the refrigeration cycle.

FIG. 3 is an enlarged view of the vicinity of an expansion valve in FIG. 2;

FIG. 4 is a sectional view taken along line AA of FIG. 3;

FIG. 5 is an enlarged front view of a protective bushing of the air conditioner according to the embodiment of the present invention.

FIG. 6 is an enlarged front view of another protective bushing.

FIG. 7 is an enlarged plan view of a refrigeration cycle of a conventional air conditioner outdoor unit.

FIG. 8 is an enlarged front view of a refrigeration cycle portion of the conventional air conditioner outdoor unit.

[Explanation of symbols]

 Reference Signs List 1 expansion valve 2a expansion valve inlet pipe 2b expansion valve outlet pipe 3a pipe near expansion valve inlet pipe 3b pipe near expansion valve outlet pipe 4a band 4b band 5a protection bushing 5b protection bushing 6a step 6b bending 7 coil lead wire 8 claw

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Hideaki Nakagawa 1006 Kadoma Kadoma, Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. 72) Inventor Tetsuo Kiyo 1006 Kazuma Kadoma, Kadoma City, Osaka Inside Matsushita Electric Industrial Co., Ltd.

Claims (5)

[Claims] In a compressor, an outdoor heat exchanger, a pipe, an expansion valve, etc. constituting a refrigeration cycle inside an outdoor unit, each of an inlet pipe and an outlet pipe of the expansion valve is connected to the pipe whose vicinity is routed. An expansion valve holding device for an outdoor unit of an air conditioner, wherein the expansion valve is held and fixed by being bound by a band. 2. A compressor, an outdoor heat exchanger, a pipe, an expansion valve, etc. constituting a refrigeration cycle inside an outdoor unit, wherein each of an inlet pipe and an outlet pipe of the expansion valve is connected to the pipe whose vicinity is routed. An expansion valve holding device for an air conditioner outdoor unit, wherein the expansion valve is held and fixed by a leaf spring. 3. A step or a bend is provided in a pipe around which the inlet pipe and the outlet pipe of the expansion valve are routed, and the pipe for holding and fixing the expansion valve by binding with a band or by means of a leaf spring. The expansion valve holding device for an outdoor unit of an air conditioner according to claim 1, wherein the expansion valve is prevented from moving downward. 4. A band-bound or leaf-spring unit via a pipe around which an inlet pipe and an outlet pipe of the expansion valve are routed in the vicinity thereof and a protective bushing made of a material having excellent vibration absorption such as rubber. The expansion valve holding device for an outdoor unit of an air conditioner according to claim 1 or 2, wherein the expansion valve is fixed. 5. A leaf spring for fixing an inlet pipe and an outlet pipe of the expansion valve via a protection bushing and a pipe whose vicinity is routed, wherein the leaf spring is provided at a position between the expansion valve and the vicinity pipe. The expansion valve holding device for an outdoor unit of an air conditioner according to claim 2, further comprising a claw for fixing and hooking a coil lead wire for driving the expansion valve.