JP2000095276A - Packing device for air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent danger of a taking fire and an explosion of a leaked combustible refrigerant by providing a box body having an opening on the upper surface, and an upper lid to cover the opening, and constituting the box body in such a manner that a specified amount of the leaked refrigerant from an air conditioner can reside in the box body, when an air conditioner using a refrigerant gas having a combustible refrigerant is packed. SOLUTION: This packing device for an air conditioner 1A is constituted of an upper lid 2A, a box body 3A, and a sealing material 4A. The box body 3A is constituted of a paper material such as corrugated fiberboard, and the sealing material 4a is applied at bonded portions which are constituted of the corrugated fiberboard of respective faces. The sealing material 4A may be one which covers the bonded portions of respective faces of the box body 3A with a polyethylene based resin tape or the like, or one which covers the bonded portions on the inside. Also, the box body 3A may by one which is integrally molded with a resin or the like. Also, when required, a refrigerant reaction sensor which reacts to a pressure change in the packing device is provided, and a display portion which notifies the leakage of the refrigerant in the packing device by the refrigerant reaction sensor, can be provided on the packing device as well.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging device for an air conditioner using a flammable refrigerant.

[0002]

2. Description of the Related Art In a conventional air conditioner packing apparatus, a cardboard for packing is laid under a body of an air conditioner for the purpose of easy disassembly or cost reduction, and a protective sheet of vinyl or the like is placed thereon. The air conditioner was placed on the top, covered with corrugated cardboard, and the upper and lower lids were finally covered with vinyl tape wrapped in the vertical direction.

[0003]

However, with such a protection structure using a mere vinyl sheet, if the flammable refrigerant leaks from the air conditioner body during transportation or storage, the flammable refrigerant is packed. Even if a flammable refrigerant can diffuse out of the apparatus and ignite, or if a flammable refrigerant can stay in the sheet, the sheet is a vinyl sheet. In addition, flammable refrigerants used as refrigerants are generally colorless and odorless and are difficult to detect with human perception. The present invention prevents the diffusion of the flammable refrigerant leaked from the air conditioner during transportation or storage to the outside of the packaging device, or at the initial stage of refrigerant leakage,
By detecting refrigerant leakage, the danger of ignition and explosion is prevented, and a safe packaging device is provided.

[0004]

According to a first aspect of the present invention, there is provided an air conditioner packing apparatus using a refrigerant gas having a flammable refrigerant according to the present invention, wherein a box having an opening on an upper surface and an upper cover for covering the opening. The packaging device is characterized in that a fixed amount of refrigerant leaked from the air conditioner can be retained in the box body. According to a second aspect of the present invention, in the packing device according to the first aspect, a portion of the internal space and the external space through which gas enters and exits is leaked to the outside when the amount of the leaking refrigerant inside is less than a predetermined amount or a predetermined pressure. It is characterized by having no configuration. According to a third aspect of the present invention, in the air conditioner packaging device according to the second aspect, even when the internal pressure increases to about twice the atmospheric pressure, the internal gas does not leak to the outside of the packaging device. It is characterized by the following. The present invention according to claim 4 is a packing device for an air conditioner using a flammable refrigerant, wherein a refrigerant reaction reacting to a component of the refrigerant gas leaked into the packing device or a pressure change inside the packing device. A sensor is provided, and a display unit for notifying that the refrigerant has leaked into the packing device by the refrigerant reaction sensor is provided in the packing device. According to a fifth aspect of the present invention, in the packing device for an air conditioner according to the first aspect, a refrigerant reaction sensor that responds to a gas component of the refrigerant or a pressure change inside the packing device is provided, and the refrigerant is detected by the refrigerant reaction sensor. A display unit for notifying that the leakage has occurred inside the packing device is provided in the packing device. Claim 6
According to the present invention, in the packing device for an air conditioner according to claim 4 or 5, the display unit is provided on an indoor unit, an outdoor unit, or both of the air conditioner and the indoor unit of the air conditioner. And a visible window is provided at a corresponding portion of the packing device where the display can be viewed from the outside. The present invention according to claim 7 is the packing device for an air conditioner according to claim 1 or 4, wherein the packing device for an air conditioner using a flammable refrigerant is provided in the air conditioner body or the packing device. And an antistatic device is provided. The present invention according to claim 8 is a packing device for an air conditioner using a flammable refrigerant, which indicates that a flammable refrigerant is used in the packing device and evokes the danger of using fire. And a display. The present invention according to claim 9 is a protective sheet for packaging an air conditioner having a component that changes color by reacting with a component of a refrigerant gas used in a refrigeration cycle of an air conditioner, wherein the reaction causes a flammable refrigerant. Is displayed. The present invention according to claim 10 is a packing sealing member of an air conditioner having a composition that changes color by reacting with a flammable refrigerant, and the leakage of the refrigerant in the sheet due to the reaction reduces at least the sheet. It is characterized in that it is partially displayed.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION

The first embodiment of the present invention comprises a box having an opening on the upper surface and an upper lid covering the opening. In this way, by adopting a configuration in which a certain amount of refrigerant leaking from the air conditioner can be retained, a flammable refrigerant having an average molecular weight larger than that of air can be retained in the lower part of the packing device. Therefore, it is possible to prevent the refrigerant from leaking to the outside and danger due to ignition or the like.

In a second embodiment of the present invention, a sealing material is sandwiched or applied between the box and the upper lid in a portion of the internal space and the external space where gas flows in and out. . Thereby, the amount of the refrigerant leaked from the air conditioner stays inside the packing device, so that the refrigerant does not leak outside from the joint between the box and the upper lid.

A third embodiment according to the present invention is a packing apparatus capable of withstanding a pressure difference between the internal pressure of the packing apparatus and about two times or less the atmospheric pressure which is an external pressure. This means that even if flammable refrigerant leaks from the air conditioner,
The amount of leakage is not so large in a short time, and the pressure inside the packing device does not increase very much. Therefore, even a package that can withstand this small amount of refrigerant pressure (for example, a simple sealing is provided at a seam of a paper package, or the entire air conditioner is covered with a heat-shrinkable film) is also provided inside the packaging device. The leakage of the refrigerant can be stopped. For this reason, it is possible to provide a packing device which is inexpensive and can be easily removed even when the air conditioner is installed, as compared with a case where a completely closed structure such as a can is used.

According to a fourth embodiment of the present invention, there is provided a refrigerant reaction sensor which reacts with the refrigerant or the like inside the packing device, and the refrigerant leaks into the packing device by an electric signal or the like from the refrigerant reaction sensor. A display unit for displaying the fact is provided in the packing device. The refrigerant usually does not easily react with other substances, and the reaction may be obtained by mixing a reagent or the like for causing the reaction with the refrigerant.

In a fifth embodiment according to the present invention, by using the refrigerant leakage display section in a packing device, it is possible to display the refrigerant with the refrigerant accumulated inside the packing device without being diffused. Even a relatively small amount of refrigerant can be detected. In particular, when a refrigerant heavier than air is used, the refrigerant reaction sensor may be provided at the lower part of the packing device so that the retained refrigerant can be detected early.

According to a sixth embodiment of the present invention, a display unit for indicating that the refrigerant has leaked into the packing apparatus is displayed on the surface of the indoor unit, the outdoor unit, or both of the air conditioner or the air. Visible windows are provided at corresponding locations where the information can be displayed on the information display section of the main body of the air conditioner and where the display can be viewed from the outside of the packing device of the air conditioner. Thereby, the cost can be reduced, and after the air conditioner is installed, the refrigerant leakage is displayed on the main body, and the refrigerant leakage can be confirmed.

A seventh embodiment according to the present invention is provided with a discharging device for preventing charging of a packing device. Thereby, even if the refrigerant leaks, the possibility of ignition by static electricity can be reduced. Incidentally, the discharging device for preventing charging is a ground or the like.

In the eighth embodiment according to the present invention, it may not be possible to understand the danger of using fire only by displaying the use of a flammable refrigerant. Since it is not possible to understand erroneous indications in some cases, the danger of using fire can be surely understood by both indications, and effective prevention can be achieved.

According to a ninth embodiment of the present invention, the leakage of the refrigerant is covered by a sheet having a component that changes its color in response to the flammable refrigerant in a conventional packing apparatus. It can be recognized by the change. Most of the conventional packing methods are diverted as they are, and a chemical substance that reacts with a refrigerant or a reagent mixed with the refrigerant is mixed with the composition of the sheet to reduce costs.

A tenth embodiment according to the present invention uses a tape having a component that reacts with a flammable refrigerant and changes its color, using a tape that comes into contact with the outside air of a packaging device, for example,
If it is a cardboard packing device, it is used for the joint surface of the upper lid and the like. Thus, when the flammable refrigerant leaks, the color of the tape changes, the refrigerant leak is recognized, and damage due to ignition or the like can be prevented.

[0016]

An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the packing device of the air conditioner 1 includes an upper lid 2 </ b> A, a box 3 </ b> A, and a sealing material 4. In this embodiment, the box 3A made of paper such as cardboard is used, but a resin material may be used. This is because the pressure resistance with respect to the leaking refrigerant becomes higher. In addition, a sealing material 4 is applied to the joint formed by the corrugated cardboard on each surface to make the joint airtight. The sealing material 4 may be made of polyethylene resin tape or the like so as to cover the joints on the respective surfaces of the box body 3A, or to cover the inner joints. The airtightness of the container 3 is such that a certain amount of refrigerant can stay inside.
This is because A and the sealing material can be used.
Further, the box 3A may be integrally molded from a resin or the like from the beginning. Similarly, the leaked refrigerant is placed at the bottom of the box 3A,
This is because they can stay.

As shown in FIG. 2, the packing device of the air conditioner 1 includes an upper cover 2B, a box 3B, and an upper cover 2B and a box 3B.
From the tape 11 for fastening in the vertical direction. In the present embodiment, the upper lid 2B has a plate shape, and there is a slight gap between the upper lid 2B and the box 3B. This is because many flammable refrigerants are heavier than air and the leakage of the refrigerant does not become large in a short time, so that it is sufficient that the refrigerant can stay at a certain amount on the bottom surface of the box 3B. In fact, even this gap,
It is preferable to use a tape made of paper or the like for closing. This is to make it more airtight. Further, in this embodiment, the box 3B is covered with the heat-shrinkable film 5 to ensure the hermeticity of the box 3B.

As shown in FIG. 3, the packing device of the air conditioner 1 includes an upper lid 2C and a box 3C. The lower surface of the upper lid 2C is wider than the opening. For this reason, the upper lid 2C has a structure that covers the opening and the side surface of the box body from above. In this embodiment, in order to make the gas flow portion between the upper lid 2C and the outside of the box 3C more airtight, the vicinity of the joint is sealed with a sealing material 6. It should be noted that it may be near the joint, and may be either the outer surface or the inner surface of the upper lid 2C and the box 3C.

As shown in FIG. 4, the packing device of the air conditioner 1 is such that the upper lid 2D and the box 3D are each covered with a heat-shrinkable film 7. Further, the pressure resistance of the film is set to about twice the atmospheric pressure. When a small amount of refrigerant leaks, the heat-shrinkable film 7 expands without breaking, thereby preventing refrigerant leakage.

As shown in FIG. 5, the packing apparatus of the air conditioner 1 receives and displays signals from the upper lid 2E, the box 3E, the refrigerant reaction sensor 9E reacting with the internal refrigerant, and the refrigerant reaction sensor 9E. A refrigerant leak indicator 8E is provided.
In addition, a through hole may be provided in the lid 2E or the box 3E to detect and display the refrigerant on the outer surface of the packing device.
This is because the refrigerant reaction sensor 3E and the display unit 8E can be integrally formed, and cost can be reduced.
It is effective if a refrigerant reaction sensor is provided below the box 3E where the flammable refrigerant stays.

As shown in FIG. 6, the packing device of the air conditioner 1 has a refrigerant leakage display section 8F which receives and displays signals from the upper lid 2F, the box 3F, and the refrigerant reaction sensor 9F which reacts with the refrigerant inside. And the display unit 8 from outside the box 3F.
It comprises a visible window 10 through which F can be seen. In this case, the visible window 10 is made of translucent glass, resin, or the like, and is attached to the packing device with an adhesive or the like in order to maintain the airtightness of the packing device. Further, the signal of the refrigerant reaction sensor 9F is transmitted to the air conditioner 1 by radio waves in FIG. As shown in FIG. 7, the information display unit 12 may be provided in the indoor unit 1 of the air conditioner.

As shown in FIG. 8, the packing device of the air conditioner 1 is composed of an upper cover 2G, a box 3G, and an antistatic device 12G provided on the main body of the air conditioner 1. By doing so, the danger of firing due to the charging of the air conditioner 1 is eliminated. Examples of the antistatic device 12G include a device that discharges static electricity of the packing device into the air and a device that discharges static electricity to the ground. Further, as shown in FIG. 9, it is also possible to provide an antistatic device 12H in the packing device itself.
The antistatic device 12H may be one in which only the box 3H is grounded, or one in which the air conditioner 1 and one of the packing devices 2H or 3H are connected by a conducting wire and discharged from the box 3H. It is enough that ignition by static electricity can be prevented as a result.

[0023]

According to the present invention, the safety of an air conditioner using a flammable refrigerant is ensured by adopting the above structure.

[Brief description of the drawings]

FIG. 1 is a perspective view of a packing device according to an embodiment of the present invention.

FIG. 2 is a perspective view of the packing apparatus according to the embodiment.

FIG. 3 is a perspective view of the packing device of the embodiment.

FIG. 4 is a perspective view of the packing device of the embodiment.

FIG. 5 is a perspective view of the packing device of the embodiment.

FIG. 6 is a perspective view of the packing device of the embodiment.

FIG. 7 is a perspective view of the packing device of the embodiment.

FIG. 8 is a perspective view of the packing device of the embodiment.

FIG. 9 is a perspective view of the packing device of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Air conditioner 2 Top cover 3 Box 4 Sealing material 5, 7 Heat shrink film 8 Refrigerant leak display part 9 Refrigerant reaction sensor 10 Visible window 11 Information display part 12 Antistatic device 13 Tape

Continued on the front page (72) Inventor Yoshikazu Kawabe 1006 Kazuma Kadoma, Kadoma City, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. Person Yoshinori Kobayashi 1006 Kadoma Kadoma, Kadoma-shi, Osaka Matsushita Electric Industrial Co., Ltd.

Claims (10)

[Claims] 1. An air conditioner packaging device using a refrigerant gas having a flammable refrigerant, comprising a box having an opening on an upper surface and an upper lid covering the opening.
A packaging device for an air conditioner, characterized in that a certain amount of refrigerant leaking from the air conditioner can be retained. 2. A structure in which gas in the internal space and the external space between the box body and the upper lid, through which gas enters and exits, does not leak to the outside when the amount of refrigerant leaked inside is below a predetermined amount or a predetermined pressure. The packing device according to claim 1, wherein: 3. The packing device according to claim 1, wherein the internal pressure is 2 at atmospheric pressure.
The packing device for an air conditioner according to claim 2, wherein the internal gas does not leak to the outside of the packing device even when the packing device rises about twice. 4. A packing device for an air conditioner using a flammable refrigerant, comprising: a refrigerant reaction sensor that reacts to a component of a refrigerant gas leaked into the packing device or a pressure change inside the packing device. A packing device for an air conditioner, wherein a display unit for indicating that the refrigerant has leaked into the packing device by the refrigerant reaction sensor is provided in the packing device. 5. A display unit for providing a refrigerant reaction sensor for reacting to a gas component of a refrigerant or a pressure change inside the packaging device inside the packaging device, and indicating that the refrigerant has leaked into the packaging device by the refrigerant reaction sensor. The packing device of the air conditioner according to claim 1, wherein the packing device is provided in the packing device. 6. The display unit may be provided on an indoor unit, an outdoor unit, or both of the air conditioner, or may be displayed on an information display unit of the indoor unit of the air conditioner, and may be provided from outside the packing device. The packaging device for an air conditioner according to claim 4 or 5, wherein a visible window is provided at a corresponding portion where the display can be viewed. 7. A packing device for an air conditioner using a flammable refrigerant, wherein the air conditioner body or the packing device includes:
An antistatic device is provided.
The packing device of the air conditioner according to the above. 8. A packing device for an air conditioner using a flammable refrigerant, wherein a display indicating that a flammable refrigerant is used in the packing device and a display indicating a danger of using fire are provided. A packing device for an air conditioner, comprising: 9. A packaging protection sheet for an air conditioner having a component that changes color by reacting with a component of a refrigerant gas used in a refrigeration cycle of the air conditioner, wherein the reaction indicates a leakage of a flammable refrigerant. A protective sheet for packing an air conditioner, comprising: 10. A sealing member for packing an air conditioner having a composition that changes color by reacting with a flammable refrigerant, wherein refrigerant leakage in the sheet due to the reaction is displayed on at least a part of the sheet. A sealing member for packing of an air conditioner, comprising: