TR201601228T1 - Outdoor unit and air conditioner. - Google Patents

Abstract

An outdoor unit (B) includes an indicator cover (70) including at least one type of refrigerant used and the cover portion (71) on which the measures are written, the cover portion (71), the hexagonal column of the hexagon nut (24). to cover the annular portion 73, which is connected to the gas side valve 9, with a refrigerant pipe connection valve and foldable and to form a connection between the lid portion 71 and the annular portion 73. placed.

Description

DESCRIPTION EXTERIOR UNIT AND AIR CONDITIONING DEVICE; TECHNICAL FIELD The present invention is a compressor-based refrigeration cycle. with the outdoor unit of an air conditioner using with an air conditioner that includes the unit, and more specifically, the air conditioner higher during installation work and maintenance service of the device. a disk configured to provide safety and reliability relates to the space unit and an air conditioner.

PAST WORKS Traditionally, hydrochlorofluorocarbon (HCFC)-based R22 refrigerant or hydrochlorocarbon (HFC) based R410A refrigerant base It is used in air conditioning/ventilation devices. Because, most of the existing air conditioners and those currently in production, It uses R22 refrigerant or R410A refrigerant.

However, in recent years, the protection of the ozone layer and in terms of preventing global warming, all flammable HCF based R32 refrigerant (difluoromethane), which are refrigerants, Hydrofluoroolefin based refrigerant (eg HF , Mixed refrigerant containing R32 or HFO-based refrigerant and R290 over natural refrigerants such as (propane) and R600a (isobutane) needed to focus. Among them, HCF based R32 refrigerant, to R22 refrigerant and R410A refrigerant via atmospheric emission significantly lower warming potential compared to later referred to as GWP (=G10bal Warming Potential) has the advantage.

However, since the R32 refrigerant is flammable, R32 The device using the refrigerant is taken into account with sufficient safety. should be designed. In this direction, a fire-retardant refrigerant such as R32 to improve the level of reliability when it is needed to be used. A certain amount of cost investment must be made.

Air conditioner, a compressor, outdoor heat exchanger, indoor space heat exchanger, four-way valve and refrigerant pipe. a compression device consisting of a pressure reliever connected to the other includes the refrigerant loop. Therefore, especially the R32 refrigerant For air conditioner using flammable refrigerant such as, Filling work of the refrigerant in the refrigerant cycle performed for example, during installation of the air conditioner and its maintenance Adoption of a reliability-oriented design during service An example of the design mentioned is the type of refrigerant used. a display portion that shows and is located near the entrance, and in Patent Literature 1, which describes the “cooling device that includes the inlet” can be found.

Citation List Patent Literature Patent Literature 1: Japanese Unexamined Patent Application Publication No. 10-311629 INVENTION OF THE INVENTION Technical problem Patent Literature 1, the inlet through which the refrigerant is filled (door for maintenance) showing the type of refrigerant in a close position, so that the operator can identify the type of refrigerant being used. describes a technique that allows However, the installation Depending on the location of the area, the installation work of the air conditioner conditions (for example, forcing the operator to perform an uneven posture) It may be necessary to perform it under insufficient light and narrow space.

Accordingly, the operator identifies the displayed content. may fail, and therefore, the type of cooler simply cannot be determined. display allows the operator to identify the displayed content. may not be enough to provide it perfectly.

Using a flammable refrigerant such as R32 refrigerant risk of failing to diagnose the displayed, how unfavorable the conditions of installation work must be completely eliminated regardless of adequate security cannot be provided. Accordingly, the operator without fail of the type of refrigerant used by a much more reliable method that allows development is required.

In addition, the continued increase in refrigerant replacement work, It causes an increase in the types of refrigerants to be handled. This Accordingly, the care provider's mistake is an incorrect the chance of filling the refrigerant increases. In such a case, safety and reliability deteriorates significantly. For example, use R22 refrigerant or R410A refrigerant. existing air conditioners using flammable refrigerant It has not been designed with reliability in mind. flammable the refrigerant accidentally in the existing air conditioner like this. on the assumption that refrigerant installation or maintenance if it leaks during operation or if the refrigerant due to disruption of the refrigerant cycle during use if it leaks, the refrigerant concentration of the ambient air, flammability it can reach your nerve or hang it.

On the other hand, R22 refrigerant or R410A refrigerant, configured to use flammable refrigerant as a result of error. In the case of filling the air conditioner, the inside of the compressor may corrode and the cooling and heating performance may deteriorate, because e.g; For the flammable refrigerant, the refrigerant machine oil is selected and is used, and hence the reliability deteriorates significantly.

The present invention can be realized by considering the previous problem and the operator (for example, the operator participating in the assembly work, maintenance operator participating in the service or operator participating in the recycling business) which allows to diagnose the type of refrigerant without failure, thus an outdoor unit that improves reliability and safety, and provides an air conditioner comprising such an outdoor unit.

Problem Solution In one approach, the present invention is when the refrigerant is filled. closed with a sealed hex nut to be removed. a refrigerant pipe enclosing the maintenance door to fill refrigerant It provides an outdoor unit incorporating a connecting valve. Outdoor unit, marked with at least one type and measure of refrigerant used. includes an indicator cover, which includes a cover part of the hexagonal column of the sealing hexagonal nut around it, the ring part connected to the refrigerant pipe connection valve and foldable and between the lid part and the ring part to cover the connection part formed to make the connection is placed.

In another approach, the present invention is connected to the outdoor unit. an air conditioner that includes the indoor unit and the previous outdoor unit. provides the device.

Advantageous Effects of the Invention As above, outdoor unit, refrigerant filling work accidental refilling of the refrigerant by the operator during minimizes similar errors.

Air conditioner in accordance with the present invention, former outdoor Since it includes the unit, the deterioration performance of the air conditioner and quality can be suppressed. Summary Description of Drawings general purpose of an air conditioner that includes an outdoor unit. It is a sematic perspective view showing its configuration. indicator cover that connects to an outdoor unit This is a perspective view showing 1oir example of its configuration. side of the outdoor unit in the form suitable for the application of the invention. is a magnified perspective view showing part of his face. of the indicator cover, which is connected to the outdoor unit in the figure. A perspective view showing another example of is the view. side of the outdoor unit in the form suitable for the application of the invention. is a magnified perspective view showing part of his face. of the indicator cover, which is connected to the outdoor unit in the figure. A perspective view showing another example of is the view. side of the outdoor unit in the form suitable for the application of the invention. is a magnified perspective view showing part of his face. of the indicator cover, which is connected to the outdoor unit in the figure. A perspective view showing another example of is the view. side of the outdoor unit in the form suitable for the application of the invention. is a magnified perspective view showing part of his face.

Description of Applications Hereinafter, the application of the present invention is to the drawings. will be described in print. including Figure 1 here. in drawings referenced later, the size difference between components Relationships may differ from real ones. Here in Figure 1 In addition, in the drawings referenced later, including the components of the reference numbers are the same or the corresponding ones, will be applied throughout the specification. Also, throughout the specification the expression The configurations of the components provided are exemplary only and It is not intended to limit configuration to expressions.

Figure 1 is the external shape suitable for the application of the present invention. General of the Air Conditioner (A) that includes the indoor unit (B) It is a sematic perspective view showing its configuration. Shape The configuration of the Air Conditioner (A) is described, referring to the will be.

Air conditioner (A) with a separate type of air conditioner for domestic use can be sampled and includes the indoor unit (C) and the outdoor unit (B). takes in.

The outdoor unit (13) will be ventilated (e.g. outside mounted in the space separated from the space that will be the space It is fixed on the pedestals (51) and is attached to the indoor unit (C) for cooling. It serves to supply energy or heating energy. Outdoor unit (B) of operation not too far from the indoor unit. in a position that allows air passage to be secured. installation is preferred.

Indoor unit (C), eg; to the room wall with screws (59) hung and fixed on a fixed mounting plate (21), and supply of ventilated air to the space to be ventilated serves to.

Outdoor unit (B) in the form suitable for the application, operator (for example, who participated in the installation of the Air Conditioner (A) operator, the operator participating in the maintenance service of the Air Conditioner (A), or Operator involved in recycling of air conditioner (A) the type of refrigerant filled into the air conditioner (A) without fail. contiguous to allow diagnosis.

Liquid side piping (12) and gas side piping (I3) is connected to the indoor unit (C). Liquid side valve (refrigerant pipe connecting valve) (8) and gas side valve (refrigerant pipe connecting valve) 9 connected to the outdoor unit (B). Liquid side of indoor unit (C) pipe connection (12) and liquid side valve (8) of outdoor unit (B), extension tube with bell-like expanding ends (in/out connection refrigerant pipe) are connected to each other through (7).

Similarly, the gas side of the indoor unit (C) connection (13) and gas side valve (9) of outdoor unit (B) the other extension having ends that expand into each other in the shape of a bell It is connected via the pipe (7). Accordingly, the interior components of the unit (C) and those of the outdoor unit (B) pipes and hence the refrigerant circuit is formed.

Also, indoor unit (C) and outdoor unit (B) terminal of the indoor unit (C) for the electrical connection between base and the terminal base (17) of the outdoor unit (B) it is connected via cable 22 . On liquid side valve (8), gas side valve (9) and the terminal base (17) of the outdoor unit (B) (10) allowing it to be removed from the outdoor unit (B) in positions. In other words, the cover (10) for maintenance, the outer it is attached detachably to the side face of the space unit (B).

Additionally, the liquid side valve (8) and the gas side valve (9) are shown in Fig. fixed to the valve fixing plate (14) as shown.

(Indoor unit ((3)) The indoor unit (C) contains at least one indoor heat exchanger/ It includes the heat exchanger and an air-supplying fan.

Condenser in indoor heat exchanger heating operation in the form of (radiator) and in the form of an evaporator in the cooling process serves.

The air-supplying fan is located close to the indoor heat exchanger. and supplies the air flow to the indoor heat exchanger.

The indoor unit (C) is the air in the space to be ventilated. It includes the air inlet formed on the upper face for suction. Inner the indoor unit (C) is also the indoor temperature changing air obtained from the heat exchanger with the air sucked through the inlet, for blowing the ventilated air into the space to be ventilated It includes an air outlet formed in the lower part of the front face.

(Outdoor unit (13)) Outdoor unit (B), at least for example; different turn A compressor that compresses the refrigerant rapidly a four-way valve to change the flow, in the heating process A condenser (radiator) in the form of an evaporator and in the cooling process an outdoor heat exchanger that serves as a a flow control device (pressure reliever) that reduces the pressure and air an outdoor fan that supplies its flow to the outdoor heat exchanger. takes in.

The outdoor unit (B) is also a part of the front and the side. form the upper face from a front panel (62) forming the forming part of the upper panel (65) and the side face encloses a housing (outer shell) consisting of the side panel (66). The front panel (62) includes an opening (63) through which air passes.

A fan guard (64) consisting of wires is connected to the mouth (63).

Side panel (66), through which the cable (22) of the outdoor unit (B) includes a mouth (68) from which it is withdrawn. From the mouth of the side panel (66) The resulting cable (68) (22) is covered by the cover (10) for maintenance. External The space unit (B) is also configured to manage the compressor. an actuation unit, four-way valve and outdoor fan and into the terminal base (17) for electrical connection to indoor unit C. (Refrigerant Circuit) The indoor heat exchanger of the indoor unit (C), the compressor, four-way valve, outdoor heat exchanger and outdoor unit (B) flow control device, thereby forming a cooling circuit are connected to each other by means of pipes. More specifically, In the refrigerant circuit heating operation, the compressor of the refrigerant, four-way valve, indoor heat exchanger, flow controller and outdoor heat exchanger will flow through the exchanger in this order and in the cooling process compressor, four-way valve, outdoor heat exchanger, flow will flow through the controller and the indoor heat exchanger in this order. is configured as follows.

Here, the four-way valve thus only controls the cooling operation. or it can be excluded as it will perform the heating operation. Additional as, for example; thus changing the flow of the refrigerant in the same way a large number of two-way valves or three-way valves, such as can be used instead.

(Cooler) circulating in the refrigerant circuit of the air conditioner (A). Samples of the refrigerant include the flammable R32 refrigerant.

Naturally, the refrigerant that can be used in the air conditioner (A) is R32 It is not limited by the coolant. For example, other products such as R290 refrigerant flammable refrigerant, carbon dioxide (CO2), hydrocarbon and helium other flammable refrigerant and chlorine-free replacement refrigerant, typically R410A but also R407C and R404A can be used.

(Installation Method of the air conditioner (A)) The installation method of the air conditioner (A) is now here below will be described. First, the assembly for mounting the indoor unit (C) plate (21), Screws (59) or similar to the room wall.

The indoor unit (C) is attached to the mounting plate (21), from which it is fixed because of it' Next, the outdoor unit (B) ensures the safety of the air passage for operation. from the indoor unit (C) (for example, the house surrounding space, patio, roof top, garage, garden v2e etc.) It is installed in a position not too far away.

The liquid side piping (12) of the indoor unit (C) and the outer the liquid side valve (8) of the room unit (B) is then (A) Bell expanding to form the refrigerant circuit are connected to each other via the extension tube (7) having ends.

Similarly, the gas side piping connection (13) of the indoor unit (C) and the gas side valve (9) of the outdoor unit (B), bell-shaped via another extension tube (7) with expanding ends are tied together. Also, indoor unit (C) and outdoor unit (B) for the electrical connection between the indoor unit (C) terminal base and terminal base (17) of the outdoor unit (B), they are connected to each other via cable 22 .

Cover (10) for later maintenance, thus the liquid side valve (8), gas side valve (9) and terminal base (17) of outdoor unit (B) It joins the side face of the outdoor unit (B) to cover it.

Here, each pair of extension pipes (7) is heat-insulating. covered with material. Then coated with heat insulating material. each of the extension tubes (7) with tape (61) in a bundle Figure 2, indicator connected to an outdoor unit (B) cover (referred to as 70(70A))) configuration It is a perspective view. Figure 3, the indicator associated with it cover (70(70A)) and the side face of the outdoor unit (B). This is an enlarged perspective view showing the Figure 2 and Configuration of the indicator cover (70(70A)), referring to Figure 3 and the type of refrigerant charged in the operator's air conditioner (A) Its diagnosis will be described hereinbelow.

The liquid side valve (8) and the gas side valve (9) are connected to the outdoor unit. (B) is provided on its side face. Gas side valve (9), refrigerant includes a maintenance port 23 for filling. in the installation area the operator first removes the sealing hex nut (24) and then refrigerant charge to the maintenance door (23) for refrigerant charge connects the hose. Through this process, thus, the refrigerant on the maintenance door (23) to fill the coolant. the flush push-button valve opens.

A currently used, R410A refrigerant. air conditioner hex sealing nut (24) to 1/2 inch size and the flat surfaces of the sealed hex nut (24) The distance between them is 17 mm. However, the mentioned sized hexagonal sealing nut (24) is used. In this case, a refrigerant other than the R410A refrigerant is installed. Operator's refrigerant type when filled into the air conditioner. In this direction, as explained by drawing in Figure 3, the outdoor space Indicator (B) on which the name of the refrigerant is marked. cover (70(70A)) of the gas side valve on the outdoor unit (B) side. (9) is provided in the joining part. Preferably, the indicator cover (70(70A)) with an elastic material such as resin, metal, rubber or the like. can be made of matter. Indicator cover (70(70A)), Figure As shown in Fig. 2, a cover portion (71(7IA)) portion 72(72A)) and a ring portion 73(73A)).

Cover section (71(71A)) It is formed to cover the hexagonal column-shaped part.

In other words, the cover part (71(71A)), sealed hexagon the hexagonal column of the nut (24) here that it will allow the placement of the the outer circumference of the hexagonal columnar part of the nut (24) configured to cover. Additionally, the “1132” cooler name on the cover portion (71(71A)) in several positions. is marked so that the refrigerant name can be distinguished from any angle.

Here, not only the type of refrigerant but also a symbol or initials indicating that the refrigerant is flammable or the cover part of a cautionary sentence with this meaning (71(71A)) can be marked on.

Between the cover portion (71(71A)) and the ring portion (73(73A)) coupling portion (72(72A)), which serves to join, foldable will be created as follows. In other words, the joining part (72(72A)), part of the cover part (71(71A)) and the ring part (73(73A)) is configured to be connected to a part. Merger part (72(72A)) is formed, for example, as a flat belt and it is foldable. As shown in Figure 2, the junction part (72(72A)) where the upper and lower surfaces of the central part will be embedded In the figure, in other words, the cap portion (71(71A)) and the ring portion (73(73A)) with reduced thickness relative to adjacent sections on the side is preferred. A configuration like this, merge section (72(72A)) to be folded so that the cover part (71(71A)) onto the sealed hex nut (24) It improves the working efficiency. Here, the merge part (72(72A)) thickness and width depend on the material to be used can be determined as desired.

Ring part (73(73A)), gas at outdoor unit (B) side outdoor valve (9) to be connected to the junction of the valve (9) unit (B) than the union of the gas side valve (9). created on a large scale. Joining the ring portion (73(73A)) As a practical example of the method, the ring portion (73(73A)) expandable and gas-side valve as illustrated in Figure 3* (9) on the valve fixing plate (14), screw fixing It is held in a position close to its position. In this case, the gas side valve (9) to be attached around it, when assembled Due to the elasticity of the rubber, the ring portion (73(73A)) is temporarily expandable. Accordingly, the indicator cover (70(70A)) sized gas side valves (9) and a large number of seals can be applied to the angular nut (24) type. Then, the cover Fitting (71(71A)) on the sealing hex nut (24) on, the joining work is finished.

Presence of indicator cover (70(70A)), cooler outdoor during maintenance or installation work of the unit (B) When it is to be filled, the operator must be careful to fill the refrigerant. before removing the hex sealing nut (24) of the door (23) first cut the cover portion (71(71A)) of the indicator cover (70(70A)) will be forced to remove it. In other words, the instrument cover (70(70A)), when the hexagonal nut (24) is removed it serves as an attachment that requires the operator to work.

Figure 4 shows the indicator cover attached to the outdoor unit (B). (70(70A, 7GB, 70C, 70D)) (hereinafter, indicator cover Another example of the (referred to as 70(7OB)) configuration It is a perspective view. Figure 5, the indicator associated with it cover (70(7OB)) and part of the side surface of the outdoor unit (B). This is a magnified perspective view. To Figure 4 and Figure 5 configuration of the instrument cover (70(70B)) and the operator's information on the type of air conditioner (A) refrigerated. diagnosis will be described hereinbelow.

Basic configuration of the instrument cover (70(70B)), Fig. Similar to that of the gauge cover (70(70A)) shown at 2°, but the gas the ring part to be connected to the side valve (9) (hereinafter, the ring portion (referred to as 73(73B))) can be configured differently Gauge cover (70(70B)), as illustrated in Figure 4 cover part (71018)), joint part (72(72B)) and ring part (73(73B)).

Cover part (71(7lb)) and joint part (72(72B)), Figure 2, cover portion (71(71A)) and cover portion (71A) It is configured in the same way as the coupling part (72(72A)).

Cover part (73(73B)), the indicator shown in Fig. that the ring portion (73(73A)) of the cover (70(70A)) is connected. it is intended to connect to a different position and therefore, in Figure 2 from the ring (73(73A)) of the indicator cover (70(70A)) shown created in a different way. More specifically, the ring portion (73(73B)), the gas side valve (9) on the outdoor unit (B) side the sealing hex nut (24) instead of the circumference of the union to fit around the base of the gas side valve (9) to which it is connected. is configured.

ring portion 73(73B), first ring portion 74, and second ring portion comprising the ring portion 75.

First ring part ('74), hexagonal nut (24), gas side, connected by the elastic force of the first ring portion (74) to be fixed (locked) around the base of the valve (9), gas side valve (9) to which the sealing hex nut (24) is attached. having a diameter equal to or less than the base ring-shaped Second ring portion 75, central portion 75A, and central portion U-shaped part (75B) protruding outward relative to (75A) (first U-shaped part) and the U-shaped part (75B) It is formed in such a way that it can be deformed.

Accordingly, to form the ring portion 73(73B) of an elastically deformable substance such as rubber or resin. is preferred to be used. Ring portion (73(73B)) of e.g. rubber When the gauge cover (70(70B)) is made, different sizes of gas side valves (9) and multiple sealing hex nuts (24) type can be applied, which leads to further improvement in working efficiency. opens. In addition, the number of parts of the U-shaped sections (7513) It is not limited to the number explained by drawing in Figure 4.

A practical example of the method of joining the ring portion 73(73B) as an example, the hexagonal nut (24) U to fit the bottom of the gas side valve (9) to which (75A) is connected. shaped portion 75B can be deformed and then the ring portion (73(73B)) to the first ring portion of the sealing hex nut (24). (74) moves the bottom part of the gas side valve (9) to which it is connected. can be scrolled for. Therefore, the leakproof hexagonal the base of the gas side valve (9) to which the nut (24) is attached, it is locked in the ring portion (74). Next, the cover portion (71(71B)) upon fitting on the sealed hex nut (24) the heat is finished.

The presence of the indicator cover (70(70B)) means that the outdoor unit (B) when refrigerant is filled in installation job or maintenance service Sealed hexagon of the maintenance door (23) for refrigerant filling Before removing the nut (24) the operator must first forced to remove the cover part (71(71B)) of the cover (70(70B)) leaves. In other words, the indicator cover (70(70B)), sealed bottom When the angular nut (24) is to be removed, keep the operator working. It serves as a necessary supplement.

Figure 6 shows the indicator cover attached to the outdoor unit (B). (70(7OA,70B, 70C, 70D)) configuration (hereinafter, A perspective view showing another example of the instrument cover (70(70C)) is the view. Figure 7 with the indicator cover (70(70C)) attached to it showing a portion of the side face of the outdoor unit (B), It is a magnified perspective view. Figure 6 and Figure Tye the configuration of the instrument cover (70(70C)) and the operator can identify the type of refrigerant charged to the air conditioner (A) will be described hereinafter.

Basic configuration of the instrument cover (70(70C)), Fig. Similar to that of the indicator cover (70(7OA)) shown in Fig. 2, but the ring portion (hereinafter referred to as) to be connected to the gas side valve (9) then the ring portion (hereinafter referred to as 73(73C))) differently is configured.

Indicator cover (70(70C)) As illustrated in Figure 6 a cover portion (71(71C)), a coupling portion (72(72C)) and a ring portion (73(73 C)).

Cover part (71(71C)) and joint part (72(72C)), Figure Joining part of indicator cover (70(70A)) shown in Fig. (72(72A)) and cover part (71(71A)) are configured in the same way.

Ring portion (73(73C)), indicator shown in Figure 2 that the ring portion (73(73A)) of the cover (70(70A)) is connected. it is intended to connect to a different position and therefore, in Figure 2l from the ring (73(73A)) of the indicator cover (70(7OA)) shown created in a different way. More specifically, the ring portion (73(73C)), the gas side valve (9) on the outdoor unit (B) side the sealing hex nut (24) instead of the circumference of the union to fit around the base of the gas side valve (9) to which it is connected. is configured.

The ring portion 73(73C)) includes the central portion 76 of a ring and U projecting outward relative to the central part (76) of the ring It encloses a section (77) (second U-shaped section).

The central part (76) of the ring is thus sealed with hexagonal base of gas side valve (9) to which nut (24) is attached Sealed hexagonal for fixing (locking) around equal to the bottom of the gas side valve (9) to which the nut (24) is attached. or in the form of a ring of smaller diameter is created.

The U-shaped portion 77 is formed and can be deformed.

In this direction, to form the ring portion (73(73C)) of an elastically deformable material such as rubber or resin. is preferred to be used. Ring portion (73(73C)), eg of rubber when the indicator cover (70(70C)) is side valves (9) and various types of sealed hex nuts (24) types can be applied, which further increases the working efficiency. leads to improvement. In addition, at least two U-shaped sections (77) It is sufficient to supply it as explained in the drawing in Figure 6.

A practical example of the method of joining the ring portion (73(73C)) as an example, the U-shaped section (77) (24) of the gas side valve (9) to which the ring is connected in the central part (76) it can be deformed to fit the base part. Because of that, gas side valve (9) to which the sealing hex nut (24) is attached. the base is locked at the central portion 76 of the ring. Later on on the cover part (71(71B)) on the sealed hex nut (24). Upon seating, the joining work is finished.

Presence of indicator cover (70(70C)), cooler outdoor during maintenance or installation work of the unit (B) When it is to be drilled, the operator must perform a maintenance check to fill the coolant. before removing the hex-sealing hexagon nut (24) of the door (23) First, cut the cover part (71(71C)) of the indicator cover (70(70C)) will be forced to remove it. In other words, the instrument cover (70(70C)), when removing the sealed hex nut (24) it serves as an attachment that requires the operator to work.

Figure 8 shows the indicator cover attached to the outdoor unit (B). (70(70A, 7GB, 7OC, 70D)) (hereinafter indicator cover (referred to as 70(7OD))) This is a perspective view showing an example. Figure 9, related to display cover (70(70D)) and side face of outdoor unit (B) is a magnified perspective view showing a portion of it. Figure 8 and Configuration of the indicator cover (70(70D)) referring to Figure 9 and identify the type of refrigerant charged in the operator's air conditioner (A). will be described hereinbelow.

Basic configuration of the instrument cover (70(70D)), Fig. Similar to that of the gauge cover (70(70A)) shown in Fig. the ring part to be connected to the side valve (9) (hereinafter, the ring portion (referred to as 73(73D))) can be configured differently Indicator cover (70(70D)) As illustrated in figure 8° a closure portion (71(71D)), a coupling portion (72(72D)) and a ring (73(73D)).

Cover part (71(71D)), indicator shown in Figure 2 same as the cover part (71(71A)) of the cover (70(70A)) is configured.

The junction section (72(72D)) illustrated in Figure 8 is a flat it is in the form of a belt.

Ring portion (73(73D)), indicator shown in Figure 2 that the ring portion (73(73A)) of the cover (70(70A)) is connected. it is intended to connect to a different position and therefore, in Figure 2 from the ring (73(73A)) of the indicator cover (70(70A)) shown More specifically, the ring portion formed in a different way (73(73D)), the gas side valve (9) on the outdoor unit (B) side the union part leaks instead of the hexagonal nut (24) connected to fit around the base of the gas side valve (9). is conigured.

The ring portion (73(73DD) is a star-shaped a disc-shaped portion enclosing the opening and a ring as a whole has shape.

Rubber or resin to form the ring portion (73(73D)) It is preferred to use a deformable material such as Ring when the part (73(73D)) is made of rubber, for example, the indicator cover (70(70D)) for a wide variety of types and types of sealing hex nuts (24) can be applied to gas side governors (9) of different sizes, which leads to further improvement in working efficiency.

A practical example of the method of joining the ring portion (73(73D)) as an example, the gas side to which the sealing hex nut (24) is attached The base of the valve (9) is pressed through the star-shaped opening. can be placed. Therefore, the sealing hexagon nut By pressing the bottom part of the gas side valve (9) to which (24) is connected, seated and locked within the star-shaped opening. of the cover (to sit on on, the joining work is finished.

Presence of indicator cover (70(70D)), cooler outdoor during maintenance or installation work of the unit (B) When it is to be filled, the operator must be careful to fill the refrigerant. before removing the hexagonal nut (24) of the door (23) first cut the cover part (70(71D)) of the indicator cover (70(70D)) will be forced to remove it. In other words, the instrument cover (70(7OD)), when removing the sealing hex nut (24) it serves as an attachment that requires the operator to work.

As described so far, the outdoor unit (B), When removing the sealed hex nut (24), the operator's connect a connection (indicator covers (70(70A)) to (70(70D)) and therefore also the operator's refrigerant a sticker on which the type of the cooler is written. simply position the label or the like in a position close to the connecting valve. provides more than when applied. Because, the operator's refrigerant is filled with the wrong refrigerant. is prevented from filling in, which results in a higher level of reliability and Minimizing the deterioration of the performance and quality of the air conditioner (A). causes a download. Especially with a flammable product such as R32. improvement in reliability if the refrigerant is used significant and contributes significantly to the prevention of global warming. realizable. (joint portions (72(72A)) to (72(72D))) in the drawings It is not limited to what has been described, but can be created as desired. to (71(71D))) is also indicated above. such as, in addition to or instead of the type of refrigerant, a symbol or initials meaning that it is flammable, and may contain a caution statement expressing the same effect. For example, in case the refrigerant is collected at a recycling center advantageous for diagnosing the type of refrigerant, for durability reasons the sign is engraved rather than printed is preferred. When detailed measures of pressure are to be written, it is more although suitable, when the viewing area is limited or when it is intended to distribute the device globally symbols or capital letters are more advantageous.

Type of refrigerant and related precautions, installation or maintenance are the information to be provided to the operator in case of service In the case of the room unit (B), such information is provided by the gas side valve (9). is marked on it and the cover is removed for maintenance from the outdoor unit (B). (10) can be accessed upon removal. A configuration in this section protects general users from accessing unnecessary information, thus minimizes the possibility of unnecessary confusion. Specifically, like R32 of a low flammable refrigerant Despite its classification, there is little chance of burns and the operator's fire during the installation or maintenance service of the air conditioner. exposure to a combustion accident, provided that you avoid using it it is very unlikely. That's appropriate. As a result, only the Operator of the measures making it accessible to general users is an unnecessary thus exempt from concern and therefore, such a The regulation is particularly useful when a low-flammability refrigerant is used. time is useful.

During the installation of the air conditioner (A), an incorrect The protection from filling the refrigerant is described above. However, the same effects can be achieved in the maintenance service of the Air Conditioner (A). For example, in case of malfunctioning, the refrigerant in the circuit, When the refrigerant is collected for circuit repair, the refrigerant collection device, to collect the refrigerant, to fill the refrigerant it is connected to the maintenance door (23). When the new refrigerant is filled, pre-prepared cooling cylinder, filled into the cooling cylinder To fill the refrigerant into the appliance, maintenance for the refrigerant charge It is connected to the door (23). Therefore, also in the case of maintenance service type of refrigerant, maintenance to fill refrigerant At the moment of removing the sealing hexagonal nut (24) of the door (23) it can diagnose that it is different from the previous one.

In addition, the maintenance door (23) for refrigerant filling 1/2" inlet same as inlet for R410A refrigerant used as Designed for screw. Accordingly, the operator has so far the filling hose, vacuum pump and can prepare pressure gauge and specific for R32 refrigerant there is no need to prepare (purchase) the devices. Because, operator, Air Conditioner with low global warming potential a new infrastructure that facilitates the distribution of the device (A) to the market. may be free of time and expense to set up

The maintenance door (23) for refrigerant filling is already essentially 1/2" Screw, same as the door, for the R410A refrigerant used designed for, the entrance door is traditionally used R22 It can be designed for a 7116” screw for the heatsink. Operator currently for R22 refrigerant and R410 A refrigerant so far with used filling hose, vacuum pump and pressure gauge has the same advantageous effects as these devices for the R22 refrigerant. accessible.

The air conditioner (A) is of the type used in practice in a separate house. Although sampled with air conditioner, the air conditioner (A) is in a separate type house. for use is not limited to the air conditioner, but the outdoor unit (B) provided it includes the maintenance door (23) for refrigerant filling, for commercial use it can be air conditioner or cooler.

In practice, the cover portion (71(71A, 7IB, 71C, 7ID)) (cover parts (71(71A)) to (71(71D))) specifically describe the color is not done. However, the color of the indicator cover and indicator plate, for easy identification visually, by the color of the refrigerant cylinder it is the same because the color of the refrigerant cylinder depends on the type of refrigerant cylinder as different. As an example, the color of the cylinder of the R32 refrigerant The mark is light blue and as a result, the instrument plate and It is preferable to paint the indicator cover in a light blue color.

Also, the cover part (71(71A, 7IB, 71C, 71D)) (cover (73(73D))) may be made entirely of the same material or some of the parts may be formed from a different substance and the remainder can be combined with For example, the ring portion (73(73A, 73B, 73C, It can be formed from soft rubber and the cover part (71(71A, 71B, can be formed from soft rubber. Alternatively, the cover material, for example rubber.

As noted above, the ring portion (73(73A, 73B, 73C, 73D)) although it is preferred to be formed from rubber, different items can be implemented. For example, the ring portion (73(73A, 73B, 73C, 73D)) some may be made of a metal and the rest can be formed from rubber or resin. Alternatively, the ring Elastic material such as

Reference Marks List (7): Extension tube, (8): liquid side valve, (9): gas side valve, (10): cover for maintenance; (12): liquid side pipe connection; (13): gas side piping; (14): valve fixing plate; (17): terminal base; (21): mounting plate; (22): cable, (23): maintenance door for refrigerant filling, (24): sealed hex nut, (51): pedestal, (5 9): screw, (61): tape, (62): front panel, (63): mouth, (64): fan guard, (65): top panel, (66): side panel, (68): mouth, (70(7OA)): gauge cover, (70(70B)): indicator cover, (70(70C)): indicator cover, (70(70D)): instrument cover, (71(71A)): cover part, (71(7lb)): cover part, (71(71C)): cover part, (7I(71D)): cover part, (72(72A)): junction part, (72(72B)): junction part, (72(72C)): junction part, (72(72D)): junction part, (73(73A)): ring portion, (73(73B)): ring portion, (73(73C)): ring portion, (73(73D)): ring portion, (74): first ring segment, (75): second ring segment, (75A): central part, (75B): U-shaped part, (76): the central part of the ring, (77): U-shaped part, A: air conditioner, B: outdoor unit, C: indoor unit.

MEANINGS OF THE INSTRUCTIONS IN THE FIGURES }73(7aß) 70 (TGC) 70 (7013)

Claims (6)

REQUESTS 1. An outdoor unit (B) that includes a refrigerant pipe connection valve (8,9) that includes a refrigerant charge door (23) closed with a leakproof hexagonal nut (24) that will be removed when the refrigerant is filled. a coupling part (72(72A, 72B) which is flexible, where the unit (B) is placed to cover the hexagonal column-shaped outer circumference of the nut (24), at least one type of refrigerant used on it, and a ring connected to the refrigerant pipe connection valve (8,9) , 72C, 72D)), an indicator cover (70(70A, 7GB, 70C, 70D)). 2. The outdoor unit (B) of claim 1, characterized in that the cover part of the indicator cover (70(70A, 7GB, 70C, 70D)) is formed from elastically deformable rubber. 3. The outdoor unit (B) of claim 1 or 2, which is fixed to the refrigerant pipe connection valve (8,9). 4. Claims 1 to All of which is, and is, an outdoor unit (B) and constructed in the form of a belt. 5. It is the outdoor unit (B) of claim 4 and it is formed. 6. An air conditioner (A), characterized in that any one of claims 1 to 5° includes an outdoor unit (B) and an indoor unit (C) connected to the outdoor unit (B). 21457