CN207146968U

CN207146968U - Air conditioner

Info

Publication number: CN207146968U
Application number: CN201720913074.3U
Authority: CN
Inventors: 申孟亮; 尚秀玲
Original assignee: Guangdong Midea Refrigeration Equipment Co Ltd
Current assignee: GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2017-07-25
Filing date: 2017-07-25
Publication date: 2018-03-27
Anticipated expiration: 2027-07-25

Abstract

The utility model proposes air conditioner, the air conditioner includes：Indoor heat exchanger；Compressor, the compressor are connected with the indoor heat exchanger；Outdoor heat exchanger, the outdoor heat exchanger are connected with the compressor；Orifice union, the orifice union are connected with the outdoor heat exchanger and the indoor heat exchanger respectively；Refrigerant line, the refrigerant line connect indoor heat exchanger, the compressor, the outdoor heat exchanger and the expansion valve to form refrigerant circulation；First and second stop valves, first and second stop valve is separately positioned between the indoor heat exchanger and compressor, between the indoor heat exchanger and the orifice union, wherein, orifice union includes：Filter；Electric expansion valve；First and second silencers, wherein, at least one of filter, electric expansion valve, first and second silencers are anaerobic copper piece.The air conditioner can be effectively reduced the corrosion of elements speed of air conditioner, increase the service life.

Description

Air conditioner

Technical field

Air-conditioning technical field is the utility model is related to, in particular it relates to a kind of air conditioner.

Background technology

Air conditioner, also referred to as i.e. air regulator (Air Conditioner), refer to manually means, to building/constructing The equipment that the parameter such as the temperature of surrounding air, humidity, cleanliness factor, speed is adjusted and controlled in thing.

However, current air conditioner still has much room for improvement.

Utility model content

The utility model is intended to one of technical problem at least solving in correlation technique to a certain extent.

The utility model is following discovery based on inventor and the understanding of the fact is completed：

Inventor is carrying out research process to air conditioner, it is found that weather and air ambient are adjusted for the temperature of air conditioner Section efficiency such as refrigerating efficiency can have a significant impact even with the life-span, for example, inventor has found that sulfur content compares in atmosphere High, atmosphere pollution is than in more serious environment, the service life and temperature adjustment efficiency such as refrigerating efficiency of air conditioner have It is decreased obviously.Therefore, inventor has made intensive studies discovery, in air, sulfur content is higher, atmosphere pollution is than more serious In environment, for example, in tropical rain forest, the atmosphere pollution such as wet environment, air be poor, vehicle exhaust, volcanic gas it is tighter The part such as area, evaporator, condenser pipe and the connecting tube of air-conditioning of weight due to containing copper member such as copper pipe, so easily by Corrosion, over time, corrosion can cause the leakage of air-conditioning duct, when especially copper pipe surface has condensed water, condensed water The acid that sulfurous gas (such as sulfur dioxide) in absorption air is formed afterwards can react with copper pipe accelerates corrosion, so as to serious Ground have impact on the service life and temperature adjustment efficiency of air conditioner.Inventor had found by in-depth study, by by air conditioner Employed in copper member replace with anaerobic copper piece, the corrosion rate of air conditioner in use can be effectively reduced, from And air-conditioning duct slip is effectively reduced, in addition, inventor is surprised to find that by using anaerobic copper piece, can effectively carry The temperature adjustment efficiency of high air conditioner.

In view of this, a purpose of the present utility model is to propose that one kind has corrosion-resistant or excellent performance, such as temperature The air conditioner for the advantages that adjusting efficiency high.

In one side of the present utility model, the utility model proposes a kind of air conditioner, according to reality of the present utility model Example is applied, the air conditioner includes：Indoor heat exchanger；Compressor, the compressor are connected with the indoor heat exchanger；Outdoor heat exchange Device, the outdoor heat exchanger are connected with the compressor；Orifice union, the orifice union respectively with the outdoor heat exchanger and The indoor heat exchanger is connected；Refrigerant line, the refrigerant line connect the indoor heat exchanger, the compressor, institute Outdoor heat exchanger and the orifice union are stated to form refrigerant circulation；First and second stop valves, described first and second Stop valve is separately positioned between the indoor heat exchanger and compressor, between the indoor heat exchanger and the orifice union, Wherein, the orifice union includes：Filter, the filter are connected with the outdoor heat exchanger；Electric expansion valve, the electricity Sub- expansion valve is connected with the filter and second stop valve respectively；First and second silencers, described first and second Silencer is separately positioned between the filter and the electric expansion valve, and the electric expansion valve and described second section Only between valve, wherein, at least one of the filter, the electric expansion valve, described first and second silencer are anaerobic Copper piece.Inventor can be effectively reduced the element of air conditioner it was unexpectedly observed that by using anaerobic copper piece in air conditioner Corrosion rate, so as to be effectively reduced air-conditioning duct slip, the service life of air conditioner is effectively extended, in addition, invention People is also surprising that, by using anaerobic copper piece in air conditioner, the temperature adjustment efficiency that can improve air conditioner is for example made Cold efficiency.

Optionally, the indoor heat exchanger separately includes with the outdoor heat exchanger：Multiple fins, it is the multiple Fin is arranged side by side；Heat conducting pipe, the heat conducting pipe are located in the multiple fin, wherein, the fin and the heat conducting pipe At least one of at least a portion be anaerobic copper piece.Thus, it is possible to further effectively reduce the corrosion speed of the element of air conditioner Rate, and further improve the temperature adjustment efficiency such as refrigerating efficiency of air conditioner.

Optionally, the heat conducting pipe is made up of oxygen-free copper.Thus, it is possible to further effectively reduce the corruption of the element of air conditioner Speed is lost, and further improves the temperature adjustment efficiency such as refrigerating efficiency of air conditioner.

Optionally, the heat conducting pipe includes U-shaped coil pipe, and at least a portion of the U-shaped coil pipe is oxygen-free copper pipe.Thus, The corrosion rate of the element of air conditioner can be effectively further reduced, and further improves the temperature adjustment efficiency of air conditioner Such as refrigerating efficiency.

Optionally, the heat conducting pipe is including more at least one of sub- heat conducting pipes, the multiple sub- heat conducting pipe in parallel Oxygen-free copper pipe.Thus, it is possible to effectively further reduce the corrosion rate of the element of air conditioner, and further improve air conditioner Temperature adjustment efficiency such as refrigerating efficiency.

Optionally, the heat conducting pipe includes：Heat conducting pipe body, refrigerant passage is limited in the heat conducting pipe body；With And heat conduction pipe screw thread, the heat conduction pipe screw thread are formed on the inwall of the heat conducting pipe body.Thus, it is possible to effectively further The corrosion rate of the element of air conditioner is reduced, further to improve the temperature adjustment efficiency such as refrigerating efficiency of air conditioner.

Optionally, the outer surface of the heat conducting pipe body does not have anti-corrosion layer.Thus, it is possible to and further improve air-conditioning The temperature adjustment efficiency such as refrigerating efficiency of device.

Optionally, the refrigerant line includes indoor and outdoor machine connecting line, and the indoor and outdoor machine connecting line includes：Even Adapter tube body, refrigerant passage is limited in the connecting tube body；Heat-insulation layer, the heat-insulation layer are set in the connecting tube pipe The outer surface of body；Wherein, at least a portion of the connecting tube body is anaerobic copper piece.Thus, it is possible to effectively further drop The corrosion rate of the element of low air conditioner, and further improve the temperature adjustment efficiency such as refrigerating efficiency of air conditioner.

Optionally, the indoor and outdoor machine connecting line includes pressure duct and low pressure line, the pressure duct and described Low pressure line is anaerobic copper piece.Thus, it is possible to effectively further reduce the corrosion rate of the element of air conditioner, and enter one Step improves the temperature adjustment efficiency such as refrigerating efficiency of air conditioner.

Optionally, the outer surface of the connecting tube body is formed with screw thread.It can prevent from transporting and in installation process connecting Adapter folding is flat, fracture.

Optionally, the connecting tube outer surface of tube body does not have anti-corrosion layer.Thus, it is possible to further improve air conditioner Temperature adjustment efficiency such as refrigerating efficiency.

Optionally, the refrigerant line includes indoor set auxiliary piping, and the indoor set auxiliary piping includes：Indoor set Connecting tube；Indoor set branch pipe；Distributor, the distributor respectively with the indoor set connecting tube and the indoor set branch pipe phase Even, so that the indoor set connecting tube forms fluid communication with the indoor set branch pipe, wherein, the indoor set connection At least a portion of at least one of pipe, the indoor set branch pipe and the distributor is anaerobic copper piece.Thus, it is possible to further The corrosion rate of the element of air conditioner is effectively reduced, is increased the service life.

Optionally, the distributor includes：Housing, main channel and a plurality of branch road are limited in the housing, it is a plurality of described Branch road connects with the main channel, wherein, the indoor set connecting tube is connected with the primary path, the indoor set branch pipe with The branch road is connected, and the housing, the main channel, the branch road, the indoor set connecting tube, the indoor set branch road are extremely One of few at least a portion is anaerobic copper piece.Thus, it is possible to the corrosion rate of the element of air conditioner is effectively further reduced, Increase the service life.

Optionally, further comprise：Four-way valve, the four-way valve is used to switch the outdoor heat exchanger and the interior is changed The function of hot device, wherein, at least a portion of the four-way valve is anaerobic copper piece.Thus, it is possible to effectively further reduce empty The corrosion rate of the element of device is adjusted, is increased the service life.

Optionally, the four-way valve includes:Solenoid pilot valve；Main valve body, the main valve body lead to the solenoid pilot valve Capillary is crossed to be connected；First to fourth valve port, first to fourth valve port are arranged on the main valve body, and described first Valve port is connected with the exhaust outlet of the compressor, and second valve port is connected with the air entry of the compressor, the 3rd valve Mouthful it is connected with the indoor heat exchanger, the 4th valve port is connected with the outdoor heat exchanger, wherein, it is the main valve body, described At least a portion of at least one of capillary, first to fourth valve port is anaerobic copper piece.Thus, it is possible to further effectively Ground reduces the corrosion rate of the element of air conditioner, increases the service life.

Optionally, further comprise：High pressure valve, the high pressure valve are arranged on second stop valve and the outdoor heat exchange Between device；Low pressure valve, the low pressure valve are arranged between first stop valve and the compressor, wherein, the low pressure valve At least a portion with least one of the high pressure valve is anaerobic copper piece.Thus, it is possible to effectively further reduce air conditioner Corrosion of elements speed, increase the service life.

Optionally, the orifice union further comprises：Anaerobic copper capillary tube and oxygen-free copper transition conduit, the anaerobic capillary copper Tubule and oxygen-free copper transition conduit are arranged on the electric expansion valve and first silencer, and the electric expansion valve and institute State between the second silencer.Thus, it is possible to effectively further reduce the corrosion rate of the element of air conditioner, extension uses the longevity Life.

Optionally, the anaerobic copper piece is selected from TU0, TU1 or TU2.Thus, it is possible to effectively further reduce air conditioner Element corrosion rate, and further improve air conditioner temperature adjustment efficiency such as refrigerating efficiency.

The utility model the utility model additional aspect and advantage of the present utility model will partly give in the following description Go out, partly will become apparent from the description below, or recognized by practice of the present utility model.

Brief description of the drawings

Of the present utility model above-mentioned and/or additional aspect and advantage will in the description from combination accompanying drawings below to embodiment Become obvious and be readily appreciated that, wherein：

Fig. 1 shows the structural representation of the air conditioner according to the utility model one embodiment；

Fig. 2 shows the structural representation of the heat exchanger according to the utility model another embodiment；

Fig. 3 shows the structural representation of the heat exchanger heat conducting pipe according to the utility model another embodiment；

Fig. 4 shows the structural representation of the heat exchanger heat conducting pipe according to the utility model another embodiment；

Fig. 5 shows the structural representation of the heat exchanger according to the utility model another embodiment；

Fig. 6 shows the structural representation of the indoor and outdoor machine connecting line according to the utility model one embodiment；

Fig. 7 shows the structural representation of the indoor and outdoor machine connecting line according to the utility model another embodiment；

Fig. 8 shows the structural representation of the indoor set auxiliary piping according to the utility model one embodiment；

Fig. 9 shows the structural representation of the indoor set distributor according to the utility model one embodiment；

Figure 10 shows the structural representation of the four-way valve according to the utility model one embodiment；

Figure 11 shows the structural representation of the air conditioner according to the utility model another embodiment；

Figure 12 shows the structural representation of the orifice union according to the utility model one embodiment；

Figure 13 shows the structural representation of the air-conditioner outdoor unit according to the utility model another embodiment；

Figure 14 shows the structural representation of the air-conditioner outdoor unit according to the utility model another embodiment；

Figure 15 shows the electron microscope of the TP2 copper pipes according to the utility model one embodiment；

Figure 16 shows the electron microscope of the oxygen-free copper copper pipe according to the utility model one embodiment；

Figure 17 shows the oxygen-free copper copper pipe (TU1, rhombus) and TP2 copper pipes (side according to the utility model one embodiment Shape) corrosion rate curve in salting liquid, in salting liquid, TU1 uniform corrosion rate is less than TP2 (the smaller corrosion of data Speed is smaller, and corrosion resistance is better)；

Figure 18 shows the oxygen-free copper copper pipe (TU1, rhombus) and TP2 copper pipes (side according to the utility model one embodiment Shape) corrosion rate curve in sulfur dioxide environment, in sulfur dioxide environment, TU1 uniform corrosion rate dispersiveness is small In TP2 (dispersiveness is small to show that each position difference is smaller, and overall anti-corrosion gender gap is small).

Reference：

Indoor heat exchanger 100；Compressor 200；Outdoor heat exchanger 300；Orifice union 400；Refrigerant line 500；First Stop valve 600, the second stop valve 700；Fin 110；Heat conducting pipe 120；Distributor 130；Connecting tube body 510；Heat-insulation layer 520； Indoor and outdoor machine connecting tube low-voltage tube body 510A；Indoor and outdoor machine connecting tube high-voltage tube body 510B；Indoor and outdoor machine connecting tube low pressure Pipe heat-insulation layer 520A；Indoor and outdoor machine connecting tube high-voltage tube heat-insulation layer 520B；High-voltage tube copper nut 530B；High-voltage tube copper nut seals Fill in 540B；Low-voltage tube copper nut 530A；Low-voltage tube copper nut sealing plug 540A；Indoor set connecting tube 5510；Indoor set branch pipe 5520；Distributor body 1310；Main channel 13110；Branch road 13120；Solenoid pilot valve 810；Main valve body 820；First to fourth Valve port 8210~8240；High pressure valve 900；Low pressure valve 1000；Filter 410；Electric expansion valve 420；First silencer 430；The Two silencers 440；Anaerobic copper capillary tube 450；Oxygen-free copper transition conduit 460.

Embodiment

Embodiment of the present utility model is described below in detail.The embodiments described below is exemplary, is only used for explaining The utility model, and it is not intended that to limitation of the present utility model.Unreceipted particular technique or condition in embodiment, according to Technology or condition described by document in the art are carried out according to product description.Agents useful for same or the unreceipted life of instrument Manufacturer person is produced, being can be by the conventional products of acquisition purchased in market.

Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the utility model, and it is not intended that to of the present utility model Limitation.

In description of the present utility model, it is to be understood that term " on ", " under ", "front", "rear", "left", "right", The orientation or position relationship of the instruction such as " vertical ", " level ", " top ", " bottom ", " interior ", " outer " be based on orientation shown in the drawings or Position relationship, it is for only for ease of description the utility model and simplifies description, rather than indicates or imply signified device or member Part must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.

, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Can be connection or the interaction relationship of two elements of two element internals.For one of ordinary skill in the art Speech, can understand concrete meaning of the above-mentioned term in the utility model as the case may be.

Additional aspect and advantage of the present utility model will be set forth in part in the description, partly by from following description In become obvious, or by it is of the present utility model practice recognize.

Inventor is carrying out research process to air conditioner, it is found that weather and air ambient are adjusted for the temperature of air conditioner Section efficiency such as refrigerating efficiency can have a significant impact even with the life-span, for example, inventor has found that sulfur content compares in atmosphere High, atmosphere pollution can make the service life and temperature of air conditioner than in more serious environment, copper member generates corrosion scales Regulation efficiency such as refrigerating efficiency, which has, to be decreased obviously.Therefore, inventor has made intensive studies discovery, sulfur content ratio in air Higher, atmosphere pollution than in more serious environment, such as in such as tropical rain forest, wet environment, air be poor, vehicle exhaust, The atmosphere pollution such as volcanic gas, acid rain is serious than the part such as more serious area, evaporator, condenser pipe and the connecting tube of air-conditioning by In containing copper member such as copper pipe, so easily being corroded, over time, corrosion can cause letting out for air-conditioning duct Leakage, especially when copper pipe surface has condensed water, the sulfurous gas (such as sulfur dioxide) in condensed water absorption air is formed afterwards Acid can be reacted with copper pipe quickening corrosion, so as to severely impacted the service life of air conditioner and temperature adjustment efficiency hair A person of good sense had found by in-depth study, in order to slow down under foregoing mal-condition air conditioner during temperature adjustment it is outstanding It is that copper member corrodes in process of refrigerastion.In copper member surface spraying or anti-corrosion layer would generally be electroplated, such as in copper Element surface sprays resistant material, or electroplates other protective metal layer such as tin.But so operation can significantly improve Manufacturing cost, and it is all difficult the forming position for controlling anti-corrosion layer to spray, and often sprays anti-corrosion layer in preparation process Onto the peripheral element of copper member.For example, in the heat conducting pipe surface spraying anti-corrosion layer of heat exchanger, it will usually by corrosion-resistant material Material is sprayed on fin, reduces heat exchange efficiency.In addition, spraying and electro-cladding uniformity are poor, are often formed and leaked on surface Plating leakage is sprayed, so as to cause manufacturing process poor reliability, yields is low, further increases the production cost of air-conditioning.

Thus, inventor further has made intensive studies to the corrosion rate for how slowing down copper member, in air conditioner Copper member carried out material substitution, such as copper member is replaced into aluminium element.By the way that to full aluminium heater, (evaporator is cold Condenser) carry out analysis and find, the market acceptance of full aluminium heater is bad, and heat conductivility is poor.

In research process, inventor is surprised to find that by the way that the copper member employed in air conditioner is replaced with into oxygen-free copper Part, the corrosion rate of air conditioner in use can be effectively reduced, so as to effectively reduce air-conditioning duct slip, separately Outside, inventor is surprised to find that the temperature adjustment efficiency of air conditioner can be effectively improved by using anaerobic copper piece.

In view of this, a purpose of the present utility model is to propose that there is one kind corrosion-resistant or excellent performance such as temperature to adjust The air conditioner for the advantages that saving efficiency high.

In one side of the present utility model, the utility model proposes a kind of air conditioner, with reference to figure 1~18, according to this The embodiment of utility model, the air conditioner include：Indoor heat exchanger 100, compressor 200, outdoor heat exchanger 300, orifice union 400th, refrigerant line 500, the first stop valve 600 and the second stop valve 700.Wherein, according to embodiment of the present utility model, pressure Contracting machine 200 is connected with indoor heat exchanger 100, and outdoor heat exchanger 300 is connected with compressor 200, orifice union 400 respectively with room External heat exchanger 300 is connected with indoor heat exchanger 100, and refrigerant line 500 connects indoor heat exchanger 100, compressor 200, outdoor To form refrigerant circulation, the first stop valve 600 and the second stop valve 700 are set respectively for heat exchanger 300 and orifice union 400 Indoors between heat exchanger 100 and compressor 200, between indoor heat exchanger 100 and orifice union 400.So as in air conditioner Running in, refrigerant can pass sequentially through indoor heat exchanger 100, the first stop valve 600, compressor 200, outdoor are changed Hot device 300, orifice union 400, the second stop valve 700, finally return indoor heat exchanger 100, are followed so as to form refrigerant Ring, and the heat exchange between conversion between the gas phase and liquid phase for passing through refrigerant, refrigerant and interior or outdoor air, so as to Realize the regulation to indoor temperature and for example carry out refrigeration processing.According to embodiment of the present utility model, orifice union 400 wraps Include：Filter 410, filter 410 are connected with outdoor heat exchanger 300；Electric expansion valve 420, electric expansion valve 420 respectively with mistake Filter 410 is connected with the second stop valve 700；First muffler 430 and the second silencer 440, the first muffler 430 and second Silencer 440 is separately positioned between filter 410 and electric expansion valve 420, and the stop valve of electric expansion valve 420 and second Between 700, wherein, at least one of filter 410, electric expansion valve 420, the first muffler 430 and second silencer 440 are Anaerobic copper piece.Inventor it was unexpectedly observed that by air conditioner orifice union use anaerobic copper piece, sky can be effectively reduced The corrosion of elements speed of device is adjusted, so as to be effectively prevented from air-conditioning duct leakage, effectively extends the service life of air conditioner.

It should be noted that term " being at least partially anaerobic copper piece " used in herein refers to, in air-conditioning Specific part, all can be made up of oxygen-free copper or subelement therein or portion of material are oxygen-free copper.

It is made of oxygen-free copper that term " anaerobic copper piece " used in herein, which refers to the element,.

Term " oxygen-free copper " used in herein refers to such a copper product, and its copper content is high, and oxygen content is relatively low. Typically, the content of Oxygen in Oxygen-Free Copper is not more than 0.003%, and content of impurities is not more than 0.05%, and the purity of copper is more than 99.95%.Specifically, according to embodiment of the present utility model, according to embodiment of the present utility model, anaerobic copper piece be selected from TU0, TU1 or TU2, according to specific embodiment of the utility model, materials of the TU1 as anaerobic copper piece can be used.Thus, The corrosion rate of the element of air conditioner can be effectively further reduced, and further improves the temperature adjustment efficiency of air conditioner Such as refrigerating efficiency.According to embodiment of the present utility model, the copper content of anaerobic copper piece is at least 99.95 weight %.Thus, may be used Effectively further to reduce the corrosion rate of the element of air conditioner, and further improve the temperature adjustment efficiency example of air conditioner Such as refrigerating efficiency.According to embodiment of the present utility model, the copper content of anaerobic copper piece is at least 99.97 weight %.Thus, it is possible to The corrosion of elements speed of air conditioner is effectively further reduced, and further the temperature adjustment efficiency of raising air conditioner is for example made Cold efficiency.According to embodiment of the present utility model, the phosphorus content of anaerobic copper piece is at most 0.002 weight %.Thus, it is possible to enter one Step is effectively reduced the corrosion rate of the element of air conditioner, and further the temperature adjustment efficiency of raising air conditioner is for example freezed Efficiency.According to embodiment of the present utility model, the phosphorus content of anaerobic copper piece is at most 0.0017 weight %.Thus, it is possible to enter one Step is effectively reduced the corrosion rate of the element of air conditioner, and further the temperature adjustment efficiency of raising air conditioner is for example freezed Efficiency.Inventor is by testing it was unexpectedly observed that when the copper content of the U-tube of anaerobic copper piece such as heat exchanger is at least 99.97 Weight %, when phosphorus content is at most 0.0017 weight %, it resists the corrosive power meeting in salting liquid and sulfur dioxide environment Significantly increase, the temperature adjustment efficiency such as refrigerating efficiency of air-conditioning can be significantly improved, and this is probably due to copper content Raising can make it that the heat exchange property of air-conditioning is accordingly lifted.

In addition, inventor of the present utility model for preparing air conditioner element by oxygen-free copper to conducting in-depth research hair It is existing,, can be to anaerobic copper piece in order to improve the operational reliability of air-conditioning when oxygen-free copper to be used to prepare air conditioner element Performance parameter be adjusted.Specifically, according to embodiment of the present utility model, the elongation of anaerobic copper piece is at least 45%. It just can guarantee that the processing characteristics of copper piece.According to embodiment of the present utility model, the elongation of anaerobic copper piece is at least 50%, processing Performance significantly improves, and can improve yield rate.According to embodiment of the present utility model, the grain size of anaerobic copper piece for 0.020~ 0.035 millimeter.Now, anaerobic copper piece has good mechanical property according to embodiment of the present utility model, the table of anaerobic copper piece Face cleanliness factor is at most 17 ㎎/㎡.Thus, it is possible to effectively further reduce the corrosion rate of the element of air conditioner, Yi Jijin One step improves the temperature adjustment efficiency such as refrigerating efficiency of air conditioner.According to embodiment of the present utility model, the table of anaerobic copper piece Face cleanliness factor is at most 10 ㎎/㎡.Thus, it is possible to effectively further reduce the corrosion rate of the element of air conditioner, Yi Jijin One step improves the temperature adjustment efficiency such as refrigerating efficiency of air conditioner.According to embodiment of the present utility model, anaerobic copper piece resists Tensile strength is 235~245N/ ㎜²。

In addition, inventor of the present utility model is it was unexpectedly observed that in the preparation process of anaerobic copper piece, to annealing The condition of reason optimizes, and can effectively improve performance when anaerobic copper piece is applied to air conditioner.Specifically, according to this practicality New embodiment, anaerobic copper piece are handled by process annealing.Thus, it is possible to effectively further reduce the member of air conditioner The corrosion rate of part, increases the service life.It should be noted that term " process annealing processing " used in herein refers to Annealing temperature is less than the annealing temperature of conventional TP2 copper pipes.According to embodiment of the present utility model, process annealing processing is in 370- Carried out 35~45 minutes under 420 degrees Celsius.Those skilled in the art can make a thorough investigation of product specification and determine suitable annealing process.By This, can effectively further reduce the corrosion rate of the element of air conditioner, increase the service life.According to reality of the present utility model Example is applied, inventor has found, can be by former TP2 copper pipes crystallite dimension by being carried out 35~45 minutes under 370-420 degrees Celsius 0.008-0.010mm is reduced to by 0.015-0.020mm, the intensity of TU1 copper pipes is reached the level (ginseng suitable with TP2 copper pipes Examine Figure 15 and 16).

In order to facilitate understanding, each critical piece of air conditioner is described in detail below.

Heat exchanger is refrigerant, and the main place of temperature adjustment, the position according to set by heat exchanger occur with outside air Put, be referred to as indoor heat exchanger 100 and outdoor heat exchanger 300 herein.In addition, skilled artisans appreciate that It is that refrigerant is by the heat exchanger that liquid phase is gas phase, also referred to as evaporator, heat exchange of the refrigerant by gas phase transition for liquid phase Device, also referred to as condenser.According to embodiment of the present utility model, indoor heat exchanger 100 can be same with outdoor heat exchanger 300 The heat exchanger of type or different types of heat exchanger.

With reference to figure 2~5, according to embodiment of the present utility model, indoor heat exchanger 100 can divide with outdoor heat exchanger 300 Do not include independently：Multiple fins 110 and heat conducting pipe 120.According to embodiment of the present utility model, multiple fins 110 are set side by side Put, heat conducting pipe 120 is located in the multiple fins 110 being arranged side by side, so as to when refrigerant from heat conducting pipe 120 by when, energy It is enough that heat exchange is effectively occurred with outside air (indoor or outdoor) by heat conducting pipe 120 and fin 110, so as to realize system The phase transformation of cryogen, and then realize the temperature adjustment to room air.According to embodiment of the present utility model, fin 110 and heat conduction At least a portion of at least one of pipe 120 is anaerobic copper piece.Thus, it is possible to effectively further reduce the element of air conditioner Corrosion rate, and further improve the temperature adjustment efficiency such as refrigerating efficiency of air conditioner.According to implementation of the present utility model Example, heat conducting pipe 120 are made up of oxygen-free copper.Thus, it is possible to the corrosion rate of the element of air conditioner is effectively further reduced, and Further improve the temperature adjustment efficiency such as refrigerating efficiency of air conditioner.According to embodiment of the present utility model, indoor heat exchanger 100 or outdoor heat exchanger 300 in refrigerant when being changed into gas phase by liquid phase scrubbing external heat, due to easily in heat exchanger Surface form water droplet, so as to easily to causing to corrode as the heat exchanger of air conditioner critical piece, especially work as air quality The atmosphere pollution such as when poor, tropical rain forest, wet environment, air are poor, vehicle exhaust, volcanic gas, acid rain are serious Than more serious area.Outdoor heat exchanger 300 contacts, therefore, when air quality compares by exposure to outdoor with outdoor air The atmosphere pollution such as when poor, tropical rain forest, wet environment, air are poor, vehicle exhaust, volcanic gas, acid rain are serious are compared Corrosion phenomenon easily occurs for serious area, outdoor heat exchanger 300.For the utility model, due to indoor heat exchanger 100 Or the heat conducting pipe 120 of outdoor heat exchanger 300 and at least a portion of at least one of fin 110 are anaerobic copper piece, in other words At least a portion for saying at least one of heat conducting pipe 120 and fin 110 is made of oxygen-free copper.Therefore, it is possible to effectively support Anti- extraneous corrosiveness.In addition, inventor is it was unexpectedly observed that work as heat exchanger, no matter indoor heat exchanger 100 or outdoor heat exchange When device 300 is using oxygen-free copper, its corrosive power resisted in salting liquid and sulfur dioxide environment can significantly increase, the temperature of air-conditioning Degree regulation efficiency such as refrigerating efficiency can be significantly improved, and this is probably because the raising of copper content can be so that air-conditioning changes Hot property is accordingly lifted.

With reference to figure 3 and Fig. 4, according to embodiment of the present utility model, heat conducting pipe 120 includes U-shaped coil pipe, and U-shaped coil pipe is extremely A few part is oxygen-free copper pipe.It is thus possible to the flow of refrigerant is effectively improved, so as to improve the efficiency of heat exchange.In addition, According to embodiment of the present utility model, multistage U-shape structure can be included, as shown in Figure 4.Due to the U-shaped turning of U-shaped coil pipe, In the preparation, wall thickness easily corrodes generally than relatively thin.Other materials is substituted by using oxygen-free copper, can be effectively Reduce corrosion rate.So as to reduce preparation cost, the temperature adjustment efficiency that can further improve air conditioner is for example freezed effect Rate.

In addition, it will be appreciated to those of skill in the art that heat exchanger can also use other forms, for example, with reference to figure 5 According to embodiment of the present utility model, heat conducting pipe 120 includes more sub- heat conducting pipes 1210 in parallel, more sub- heat conducting pipes 1210 At least one of be oxygen-free copper pipe.Thus, it is possible to effectively further reduce the corrosion rate of the element of air conditioner, and enter one Step improves the temperature adjustment efficiency such as refrigerating efficiency of air conditioner.

In addition, according to embodiment of the present utility model, heat conducting pipe 120 includes heat conducting pipe body, is limited in heat conducting pipe body Go out refrigerant passage；And heat conduction pipe screw thread, heat conduction pipe screw thread form the (not shown) on the inwall of heat conducting pipe body.By This, can improve the heat exchange efficiency of refrigerant, can effectively further reduce the corrosion rate of the element of air conditioner, Yi Jijin One step improves the temperature adjustment efficiency such as refrigerating efficiency of air conditioner.

It will be appreciated by those skilled in the art that the utility model substitutes current material by using oxygen-free copper, can be effective Ground reduces the corrosion rate of air conditioner element, so as to which the outer surface of the heat conducting pipe 120 according to air conditioner element such as heat exchanger can To be not provided with anti-corrosion layer, corrosion resistant effect can be equally realized.Thus, it is possible to further reduce being produced into for air conditioner This, and heat transfer effect can be improved.Thus, embodiment of the present utility model, the outer surface of the body of heat conducting pipe 120 do not have Anti-corrosion layer.The temperature adjustment efficiency such as refrigerating efficiency of air conditioner can further be improved.

According to specific embodiment of the utility model, inventor is by U-tube heat exchanger corrosion resistance made of anaerobic copper piece Corrosion resistance test can be carried out with U-shaped heat exchanger made of TP2 copper pipes, be as a result summarised in Figure 17 and Figure 18, wherein, figure 17 show it is molten in salt according to the oxygen-free copper copper pipe (TU1, rhombus) and TP2 copper pipes (square) of the utility model one embodiment Corrosion rate curve in liquid, in salting liquid, the uniform corrosion rate of TU1 oxygen-free coppers is less than TP2 (the smaller corrosion rates of data Smaller, corrosion resistance is better).Figure 18 show according to the oxygen-free copper copper pipe (TU1, rhombus) of the utility model one embodiment with Corrosion rate curve of the TP2 copper pipes (square) in sulfur dioxide environment, in sulfur dioxide environment, in SO₂In environment, TU1 The uniform corrosion rate dispersiveness of oxygen-free copper is less than TP2, and (dispersiveness is small to show that each position difference is smaller, overall anti-corrosion gender gap It is small).In addition, according to embodiment of the present utility model, inventor is by U-tube indoor heat exchanger made of TU1 oxygen-free coppers and TP2 copper The air conditioner model machine of indoor heat exchanger made of pipe compares, it is found that the high-temperature refrigeration positive effect of oxygen-free copper model machine is better than TP2 copper pipe model machines.Thus, it was demonstrated that oxygen-free copper is effectively applied to indoor heat exchanger or outdoor heat exchanger.This area skill Art personnel are, it is understood that heat exchanger especially evaporator will be far above other portions of air conditioner for corrosion resistance requirement Part.

Refrigerant line 500 is described in detail below.

With reference to figure 6, according to embodiment of the present utility model, refrigerant line 500 includes indoor and outdoor machine connecting line, the room Connection pipe for internal-external unit road includes：Connecting tube body 510 and heat-insulation layer 520.According to embodiment of the present utility model, in connecting tube pipe Refrigerant passage is limited in body 510, heat-insulation layer 520 is set in the outer surface of connecting tube body 510, wherein, connecting tube body 510 at least a portion is anaerobic copper piece.Thus, it is possible to effectively further reduce the corrosion of elements speed of air conditioner, extend Service life.This area, it is understood that the surface of the connecting tube body 510 can equally be not provided with anti-corrosion layer, so as to Reduce production cost.

With reference to figure 7, according to an embodiment of the invention, indoor and outdoor machine connecting line includes pressure duct and low pressure line, high Pressure pipe road and low pressure line are anaerobic copper piece.Thus, it is possible to effectively further avoid the element of air conditioner from being corroded, and Further improve the temperature adjustment efficiency such as refrigerating efficiency of air conditioner.Specifically, pressure duct and low pressure line include interior Outer machine connecting tube low-voltage tube heat-insulation layer 520A, indoor and outdoor machine connecting tube high-voltage tube heat-insulation layer 520B, high-voltage tube copper nut 530B, height Pressure pipe copper nut sealing plug 540B, low-voltage tube copper nut 530A and low-voltage tube copper nut sealing plug 540A.People in the art Member is it is understood that these elements could be arranged to anaerobic copper piece, and the surface of these anaerobic copper piece can be equally not provided with Anti-corrosion layer, so as to reduce production cost.

According to embodiment of the present utility model, the outer surface of connecting tube body 510 is formed with screw thread.Thus connecting tube is facilitated Bending.

With reference to figure 8 and Fig. 9, according to embodiment of the present utility model, refrigerant line can also include indoor set auxiliary tube Road, indoor set auxiliary piping include：Indoor set connecting tube 5510；Indoor set branch pipe 5520；Distributor 130, distributor 130 are distinguished It is connected with indoor set connecting tube 5510 and indoor set branch pipe 5520, so that indoor set connecting tube 5510 and indoor set branch pipe 5520 form fluid communication, wherein, at least one of indoor set connecting tube 5510, indoor set branch pipe 5520 and distributor 130 At least a portion is anaerobic copper piece.Thus, it is possible to effectively further reduce the corrosion rate of the element of air conditioner, extend and use Life-span.It will be appreciated to those of skill in the art that when air conditioner is used to freeze, easily formed at the connecting line of indoor set Water droplet, so as to cause the corrosion of hardware.By using oxygenless copper material in machine auxiliary piping indoors, can effectively drop Low corrosion speed.In addition, it will be appreciated by those skilled in the art that by using oxygenless copper material, indoors in machine auxiliary piping Anti-corrosion layer can be no longer set, so as to improve production efficiency, reduce production cost, improve the production yield of product.

With reference to figure 9, according to embodiment of the present utility model, distributor 130 includes：Housing 1310, in the housing 1310 Main channel 13110 and a plurality of branch road 13120 are limited, a plurality of branch road 13120 connects with main channel 13110, wherein, it is indoor Machine connecting tube 5510 is connected with primary path 13110, and indoor set branch pipe 5520 is connected with branch road 13120, housing, main channel, branch road, At least a portion of at least one of indoor set connecting tube, indoor set branch road is anaerobic copper piece.Thus, it is possible to effectively further The corrosion rate of the element of air conditioner is reduced, is increased the service life.

With reference to figure 10, in addition, according to embodiment of the present utility model, air conditioner can further include：Four-way valve, four Port valve is used for the function of switching outdoor heat exchanger and indoor heat exchanger, wherein, at least a portion of four-way valve is anaerobic copper piece.By This, can effectively further reduce the corrosion of elements speed of air conditioner.By using four-way valve, it can effectively cause air-conditioning Can have refrigeration and heating effect simultaneously.Due to employing anaerobic copper piece in the air conditioner of the utility model embodiment, therefore, Either under the conditions of refrigeration or heating, air conditioner can show more preferable corrosion resistance.

According to specific embodiment of the utility model, four-way valve includes that solenoid pilot valve 810 and main valve body can be included 820, main valve body 810 is connected with solenoid pilot valve 820 by capillary, and the first valve port 8210, are provided with main valve body 810 Two valve ports 8220, the 3rd valve port 8230 and the 4th valve port 8240, and the exhaust outlet phase of the first valve port 8210 and compressor 200 Even, the second valve port 8220 is connected with the air entry of compressor 200, and the 3rd valve port 8230 is connected with indoor heat exchanger 100, the 4th valve Mouthfuls 8240 are connected 300 with outdoor heat exchanger, wherein, main valve body 810, capillary, first to fourth valve port 8210~8240 are extremely One of few at least a portion is anaerobic copper piece.Thus, it is possible to the corrosion rate of the element of air conditioner is effectively further reduced, Increase the service life.

With reference to 11~Figure 14 of figure, it will be appreciated to those of skill in the art that air conditioner can also have other elements.

Specifically, according to embodiment of the present utility model, air conditioner may further include：High pressure valve 900 and low pressure valve 1000, wherein, high pressure valve 900 is arranged between the second stop valve 700 and outdoor heat exchanger 300, and low pressure valve 1000 is arranged on Between one stop valve 600 and compressor 200, wherein, at least a portion of low pressure valve 1000 and at least one of high pressure valve 900 is Anaerobic copper piece.Thus, it is possible to effectively further reduce the corrosion rate of the element of air conditioner, increase the service life.

The utility model is in addition, according to embodiment of the present utility model, orifice union further comprises：Anaerobic copper capillary tube 450 and oxygen-free copper transition conduit 460, anaerobic copper capillary tube 450 and oxygen-free copper transition conduit 460 be arranged on electric expansion valve 420 and Between one silencer 430, and the silencer 440 of electric expansion valve 420 and second.Thus, it is possible to effectively further reduce empty The corrosion rate of the element of device is adjusted, is increased the service life.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description Point is contained at least one embodiment or example of the present utility model.In this manual, to the schematic table of above-mentioned term State and be necessarily directed to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be with Combined in an appropriate manner in any one or more embodiments or example.In addition, in the case of not conflicting, this area Technical staff the different embodiments or example and the feature of different embodiments or example described in this specification can be entered Row combines and combination.

Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in the scope of the utility model It is interior above-described embodiment to be changed, changed, replaced and modification.

Claims

A kind of 1. air conditioner, it is characterised in that including：

Indoor heat exchanger；

Compressor, the compressor are connected with the indoor heat exchanger；

Outdoor heat exchanger, the outdoor heat exchanger are connected with the compressor；

Orifice union, the orifice union are connected with the outdoor heat exchanger and the indoor heat exchanger respectively；

Refrigerant line, the refrigerant line connect indoor heat exchanger, the compressor, the outdoor heat exchanger and the institute Orifice union is stated to form refrigerant circulation；

First stop valve and the second stop valve, first stop valve and the second stop valve are separately positioned on the indoor heat exchanger Between compressor, between the indoor heat exchanger and the orifice union,

Wherein, the orifice union includes：

Filter, the filter are connected with the outdoor heat exchanger；

Electric expansion valve, the electric expansion valve are connected with the filter and second stop valve respectively；

First silencer and the second silencer, first silencer and the second silencer are separately positioned on the filter and institute Between stating electric expansion valve, and between the electric expansion valve and second stop valve,

Wherein, at least one of the filter, the electric expansion valve, first silencer and second silencer are anaerobic Copper piece.
2. air conditioner according to claim 1, it is characterised in that the indoor heat exchanger is distinguished with the outdoor heat exchanger Independently include：

Multiple fins, the multiple fin are arranged side by side；

Heat conducting pipe, the heat conducting pipe are located in the multiple fin,

Wherein, at least a portion of at least one of the fin and described heat conducting pipe is anaerobic copper piece.
3. air conditioner according to claim 2, it is characterised in that the heat conducting pipe is made up of oxygen-free copper.
4. air conditioner according to claim 2, it is characterised in that the heat conducting pipe includes U-shaped coil pipe, the U-shaped coil pipe At least a portion be oxygen-free copper pipe.
5. air conditioner according to claim 2, it is characterised in that the heat conducting pipe includes more sub- heat conducting pipes in parallel, At least one of the multiple sub- heat conducting pipe is oxygen-free copper pipe.
6. air conditioner according to claim 2, it is characterised in that the heat conducting pipe includes：

Heat conducting pipe body, refrigerant passage is limited in the heat conducting pipe body；And

Heat conduction pipe screw thread, the heat conduction pipe screw thread are formed on the inwall of the heat conducting pipe body.
7. air conditioner according to claim 6, it is characterised in that the outer surface of the body does not have anti-corrosion layer.
8. air conditioner according to claim 1, it is characterised in that the refrigerant line includes indoor and outdoor machine connecting tube Road, the indoor and outdoor machine connecting line include：

Connecting tube body, refrigerant passage is limited in the connecting tube body；

Heat-insulation layer, the heat-insulation layer are set in the outer surface of the connecting tube body；

Wherein, at least a portion of the connecting tube body is anaerobic copper piece.
9. air conditioner according to claim 8, it is characterised in that the indoor and outdoor machine connecting line include pressure duct and Low pressure line, the pressure duct and the low pressure line are anaerobic copper piece.
10. air conditioner according to claim 8, it is characterised in that the outer surface of the connecting tube body is formed with screw thread.
11. air conditioner according to claim 8, it is characterised in that the connecting tube outer surface of tube body is without corrosion-resistant Layer.
12. air conditioner according to claim 1, it is characterised in that the refrigerant line includes indoor set auxiliary piping, The indoor set auxiliary piping includes：

Indoor set connecting tube；

Indoor set branch pipe；

Distributor, the distributor is connected with the indoor set connecting tube and the indoor set branch pipe respectively, so that described Indoor set connecting tube is formed with the indoor set branch pipe to be in fluid communication,

Wherein, at least a portion of at least one of the indoor set connecting tube, the indoor set branch pipe and described distributor is Anaerobic copper piece.
13. air conditioner according to claim 12, it is characterised in that the distributor includes：

Housing, main channel and a plurality of branch road are limited in the housing, a plurality of branch road connects with the main channel,

Wherein, the indoor set connecting tube is connected with the primary path, and the indoor set branch pipe is connected with the branch road, the shell At least a portion of at least one of body, the main channel, the branch road, the indoor set connecting tube, the indoor set branch road For anaerobic copper piece.
14. air conditioner according to claim 1, it is characterised in that further comprise：

Four-way valve, the four-way valve are used for the function of switching the outdoor heat exchanger and the indoor heat exchanger,

Wherein, at least a portion of the four-way valve is anaerobic copper piece.
15. air conditioner according to claim 14, it is characterised in that the four-way valve includes:

Solenoid pilot valve；

Main valve body, the main valve body are connected with the solenoid pilot valve by capillary；

First valve port, the second valve port, the 3rd valve port and the 4th valve port, first valve port, the second valve port, the 3rd valve port and the 4th Valve port is arranged on the main valve body, and first valve port is connected with the exhaust outlet of the compressor, second valve port Be connected with the air entry of the compressor, the 3rd valve port is connected with the indoor heat exchanger, the 4th valve port with it is described Outdoor heat exchanger is connected,

Wherein, the main valve body, the capillary, first valve port, the second valve port, the 3rd valve port and the 4th valve port be at least One of at least a portion be anaerobic copper piece.
16. air conditioner according to claim 1, it is characterised in that further comprise：

High pressure valve, the high pressure valve are arranged between second stop valve and the outdoor heat exchanger；

Low pressure valve, the low pressure valve are arranged between first stop valve and the compressor,

Wherein, at least a portion of at least one of the low pressure valve and described high pressure valve is anaerobic copper piece.
17. air conditioner according to claim 1, it is characterised in that the orifice union further comprises：

Anaerobic copper capillary tube and oxygen-free copper transition conduit, it is swollen that the anaerobic copper capillary tube and oxygen-free copper transition conduit are arranged on the electronics Between swollen valve and first silencer, and the electric expansion valve and second silencer.
18. air conditioner according to claim 1, it is characterised in that the anaerobic copper piece is selected from TU0, TU1 or TU2.