CN107917557A - Throttling sleeve and air conditioner - Google Patents

Throttling sleeve and air conditioner Download PDF

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Publication number
CN107917557A
CN107917557A CN201711013773.3A CN201711013773A CN107917557A CN 107917557 A CN107917557 A CN 107917557A CN 201711013773 A CN201711013773 A CN 201711013773A CN 107917557 A CN107917557 A CN 107917557A
Authority
CN
China
Prior art keywords
refrigeration
heating
valve chamber
spool
refrigerant
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201711013773.3A
Other languages
Chinese (zh)
Inventor
陈焕锐
李德鹏
陈禹贵
王宏翔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hisense Guangdong Air Conditioning Co Ltd
Hisense Home Appliances Group Co Ltd
Original Assignee
Hisense Kelon Electrical Holdings Co Ltd
Hisense Guangdong Air Conditioning Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hisense Kelon Electrical Holdings Co Ltd, Hisense Guangdong Air Conditioning Co Ltd filed Critical Hisense Kelon Electrical Holdings Co Ltd
Priority to CN201711013773.3A priority Critical patent/CN107917557A/en
Publication of CN107917557A publication Critical patent/CN107917557A/en
Withdrawn legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00Problems to be solved
    • F25B2500/12Sound

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Valves (AREA)
  • Temperature-Responsive Valves (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The invention discloses a throttling short pipe and an air conditioner, relates to the technical field of air conditioners and aims to reduce the liquid flow noise of the throttling short pipe in the throttling process. The utility model provides a restriction nozzle stub for air conditioner refrigerating system, including the body that the circulation has the refrigerant, the internal refrigeration valve body that is fixed with of body heats the valve body, the throttle to the refrigerant when the refrigeration valve body is used for air conditioner refrigeration, heat the throttle to the refrigerant when the valve body is used for the air conditioner to heat, be equipped with in the body and fall the chamber of making an uproar, fall the internal diameter in chamber of making an uproar and be greater than the internal diameter of body, fall the chamber of making an uproar and be located exit when the refrigeration valve body throttles the refrigerant, and/or, be located the exit when heating the valve body throttles the refrigerant. The throttling device is used for throttling the refrigerant of the refrigerating system.

Description

A kind of restriction sleeve and air conditioner
Technical field
The present invention relates to air-conditioning technical field, more particularly to a kind of restriction sleeve and air conditioner.
Background technology
Nowadays, the refrigeration plant such as air conditioner due to can low-temperature storage article and be widely used.In these refrigeration plants Refrigeration system in, throttle part is a very important component in system, and throttle part generally has three kinds, be respectively hair Tubule, restriction sleeve and electric expansion valve.Wherein, since restriction sleeve is simple in structure, have for the production efficiency of air conditioner It is obvious to improve.On air-conditioning, majority is throttled using restriction sleeve, to improve complete machine production efficiency.
The prior art provides a kind of restriction sleeve, as shown in Figure 1, including tube body 01, tube body 01 is interior to be equipped with refrigeration valve block 02 and heating valve body 03, the outer wall of first end of refrigeration valve block 02 and heating valve body 03 is connected with 01 inner wall sealing of tube body, and second The outer wall at end has certain gap with 01 inner wall of tube body, is respectively equipped with refrigeration valve block 02 and the second end of heating valve body 03 Freeze spool 021 and heating spool 031, and the refrigeration spool bore 023 that refrigerant passes through can be made by being equipped with refrigeration spool 021, heat valve The heating spool bore 033 that refrigerant passes through can be made by being equipped with core 031, and refrigeration spool 021 can be along the inner wall of 02 second end of refrigeration valve block Slide, and the refrigeration deflector hole 022 connected with tube body 01 is offered on the inner wall of 02 second end of refrigeration valve block;Heat spool 031 It can be slided along the inner wall of heating 03 second end of valve body, and offer what is connected with tube body 01 on the inner wall of heating 03 second end of valve body Heat deflector hole 032.
When air conditioner refrigerating, as shown in Fig. 2, refrigerant is introduced into heating valve body 03 from the right side of tube body 01 flow direction left side, refrigerant Interior, heating spool 031 is moved to the left along the inner wall of heating 03 second end of valve body by refrigerant pressure, is made positioned at heating valve body 03 the Heating deflector hole 032 on the inner wall at two ends is opened, and then refrigerant is led by the heating spool bore 033 and heating of heating spool 03 Discharge orifice 032 throttles, and continues towards the left side of tube body 01, subsequently into refrigeration valve block 02, refrigeration spool 021 by refrigerant pressure, It is moved to the left along the inner wall of 02 second end of refrigeration valve block, and then blocks refrigeration deflector hole 022, makes refrigerant by refrigeration spool 021 Refrigeration spool bore 023 flow to the left side of tube body 01;
When air-conditioning heating, as shown in figure 3, refrigerant with flow direction during refrigeration on the contrary, from the left side of tube body 01 flow direction right side, it is cold Matchmaker is introduced into refrigeration valve block 02, and refrigeration spool 021 is moved right along the inner wall of 02 second end of refrigeration valve block by refrigerant pressure, Refrigeration deflector hole 022 is opened, and then refrigerant throttles by the refrigeration spool bore 023 and refrigeration deflector hole 022 of refrigeration spool 02, The right side of tube body 01 is continued towards, subsequently into heating valve body 03, heating spool 031 is by refrigerant pressure, along heating valve body 03 The inner wall of second end moves right, and then blocks heating deflector hole 032, makes heating spool bore of the refrigerant by heating spool 031 033 flows to the right side of tube body 01.
But with reference to Fig. 1 and Fig. 4, the internal diameter of the tube body 01 of the restriction sleeve of the prior art is basic one before and after throttling Sample, for restriction sleeve during throttling, refrigerant is the gas-liquid mixed by high temperature and pressure especially in air conditioner refrigerating pattern The gas liquid mixture of body segment stream into low-temp low-pressure enters evaporator, and throttling process is due to refrigerant temperature, the rapidly change of pressure, flow velocity Change, throttling noise can be thus produced after throttling and is passed on the inside of air conditioning chamber, and then side can hear obvious liquid stream indoors Noise.
The content of the invention
The embodiment of the present invention provides a kind of restriction sleeve and air conditioner, can reduce liquid of the restriction sleeve in throttling process Flow noise.
To reach above-mentioned purpose, the embodiment of the present invention adopts the following technical scheme that:
A kind of restriction sleeve, has the tube body of refrigerant for air-conditioning refrigeration system, including circulation, system is fixed with the tube body Low temperature valve body and heating valve body, the throttling when refrigeration valve block is used for air conditioner refrigerating to refrigerant, the valve body that heats are used for air-conditioning To the throttling of refrigerant during heating, the tube body is interior to be equipped with noise reduction cavity, and the internal diameter of the noise reduction cavity is more than the internal diameter of the tube body, institute Exit when noise reduction cavity is located at the refrigeration valve block to coolant throttle is stated, and/or, positioned at the heating valve body to coolant throttle When exit.
The restriction sleeve of the embodiment of the present invention, due to being provided with noise reduction cavity in tube body, and the internal diameter of noise reduction cavity is more than pipe The internal diameter of body.In this way, when refrigerant is flowed in the larger noise reduction cavity of internal diameter by the less tube body of internal diameter, refrigerant stream can be alleviated Speed, and then reduce liquid stream noise.Meanwhile in order to ensure noise reduction cavity can reduce noise when restriction sleeve throttles, noise reduction cavity is set Put at the throttle part rear of restriction sleeve, i.e. exit when noise reduction cavity is located at refrigeration valve block to coolant throttle, and/or, position Exit when valve body is heated to coolant throttle.Thus, it is ensured that reduction of the noise reduction cavity to liquid stream noise after restriction sleeve throttling.
On the other hand, the embodiment of the present invention additionally provides a kind of air conditioner, is equipped with the cooling cycle system of air conditioner Above-mentioned restriction sleeve.
The air conditioner of the embodiment of the present invention, due to being equipped with above-mentioned restriction sleeve in cooling cycle system, has same Beneficial effect, i.e. liquid stream noise of the restriction sleeve in throttling process can be reduced.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, embodiment will be described below Needed in attached drawing be briefly described, it should be apparent that, drawings in the following description be only the present invention some Embodiment, for those of ordinary skill in the art, without creative efforts, can also be attached according to these Figure obtains other attached drawings.
Fig. 1 is a kind of structure diagram of restriction sleeve of the prior art;
Fig. 2 is a kind of structure diagram in refrigeration of restriction sleeve of the prior art;
Fig. 3 is a kind of structure diagram in heating of restriction sleeve of the prior art;
Fig. 4 is a kind of tube body appearance diagram of restriction sleeve of the prior art;
Fig. 5 is the structure diagram of the restriction sleeve of the embodiment of the present invention;
Fig. 6 is the tube body appearance diagram of the restriction sleeve of the embodiment of the present invention;
Fig. 7 is that the noise reduction cavity of the restriction sleeve of the embodiment of the present invention is arranged on refrigeration valve block and heats the structure between valve body Schematic diagram;
Fig. 8 is that the noise reduction cavity of the restriction sleeve of the embodiment of the present invention is arranged on refrigeration valve block and heats the tube body between valve body Appearance diagram;
Structure diagram when Fig. 9 is the refrigeration valve block throttling of the restriction sleeve of the embodiment of the present invention;
Partial enlargement structural representation when Figure 10 is the refrigeration valve block throttling of the restriction sleeve of the embodiment of the present invention;
Structure diagram when Figure 11 is the heating valve body throttling of the restriction sleeve of the embodiment of the present invention.
Reference numeral:
1- tube bodies;2- refrigeration valve blocks;21- refrigeration valve chambers;211- refrigeration valve chamber imports;The outlet of 212- refrigeration valve chambers;22- systems Cooling spool;23- refrigeration throttle orifices;24- refrigeration deflector holes;3- heats valve body;31- heats valve chamber;311- heats valve chamber import; The outlet of 312- heating valve chambers;32- heats spool;33- heats throttle orifice;34- heats deflector hole;4- noise reduction cavities;41- noise suppression networks; 5- filter screens.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work Embodiment, belongs to the scope of protection of the invention.
In the description of the present invention, it is to be understood that term " " center ", " on ", " under ", "front", "rear", " left side ", The orientation or position relationship of the instruction such as " right side ", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are based on attached drawing or assembling Shown orientation or position relationship, are for only for ease of and describe the present invention and simplify description, rather than indicate or imply meaning Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to the present invention's Limitation.
In the description of the present invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected.It is right For those of ordinary skill in the art, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
The embodiment of the present invention provides a kind of restriction sleeve, for air-conditioning refrigeration system, as shown in Figure 5 and Figure 6, including circulates There is the tube body 1 of refrigerant, refrigeration valve block 2 and heating valve body 3 are fixed with tube body 1, to refrigerant when refrigeration valve block 2 is used for air conditioner refrigerating Throttling, throttling when heating valve body 3 is used for air-conditioning heating to refrigerant, tube body 1 is interior to be equipped with noise reduction cavity 4, and the internal diameter of noise reduction cavity 4 is big In the internal diameter of tube body 1, exit when noise reduction cavity 4 is located at refrigeration valve block 2 to coolant throttle, and/or, it is right positioned at heating valve body 3 Exit during coolant throttle.
The restriction sleeve of the embodiment of the present invention, with reference to Fig. 5, due to being provided with noise reduction cavity 4 in tube body 1, and noise reduction cavity 4 Internal diameter is more than the internal diameter of tube body 1.In this way, when refrigerant is flowed in the larger noise reduction cavity 4 of internal diameter by the less tube body 1 of internal diameter, Refrigerant flow rate can be alleviated, and then reduce liquid stream noise.Meanwhile in order to ensure noise reduction cavity 4 can reduce restriction sleeve throttling when Noise, noise reduction cavity 4 is arranged on the throttle part rear of restriction sleeve, i.e. noise reduction cavity 4 is located at refrigeration valve block 2 to coolant throttle When exit, and/or, positioned at heating valve body 3 to coolant throttle when exit.Thus, it is ensured that noise reduction cavity 4 is to restriction sleeve The reduction of liquid stream noise after throttling.
It should be noted that noise reduction cavity 4 can be exit when being provided only on refrigeration valve block 2 to coolant throttle, or, drop Exit when chamber 4 of making an uproar is provided only on heating valve body 3 to coolant throttle, or, in the outlet when refrigeration valve block 2 is to coolant throttle Exit when place and heating valve body 3 are to coolant throttle is all set.Generally, during due to air-conditioning heating pattern, indoor belongs to High-temperature gas, and the throttling to refrigerant is directed towards outdoor side, therefore, the noise of indoor is relatively small.Made reducing Make technique, on the premise of reducing cost, exit when noise reduction cavity 4 preferably being arranged on refrigeration valve block 2 to coolant throttle.
The internal diameter of noise reduction cavity 4 determines the stream for alleviating refrigerant after throttling with the magnitude relationship that differs of the internal diameter of tube body 1 The effect of speed, is verified according to many experiments, when the internal diameter of noise reduction cavity 4 is greater than or equal to two times of 1 internal diameter of tube body, best results.
In order to further reduce liquid stream noise, as shown in figure 5, being equipped with noise suppression network 41 in noise reduction cavity 4.Noise suppression network 41 is set Put, can further alleviate refrigerant flow rate, and reduce sound transmission effect, and then increase the effect for reducing liquid stream noise.
It should be noted that being arranged on the requirement at the throttle part rear of restriction sleeve according to noise reduction cavity 4, noise reduction cavity 4 can To be one or more, meanwhile, the position that noise reduction cavity 4 is set is needed according to refrigeration valve block 2 and heating 3 inside concrete structure of valve body To determine.For example, referring to Fig. 2, when air conditioner refrigerating, refrigerant first passes through heating spool 03 on the left of the flow direction of the right side of tube body 01, then By the spool 02 that freezes, the rear that refrigeration spool 02 throttles is the left side of tube body 01, therefore, as shown in figure 5, noise reduction cavity 4 can be with For one, the left side of tube body 1 is arranged on;With reference to Fig. 3, when air-conditioning heating, refrigerant is first passed through from the left side of tube body 01 flow direction right side Freeze spool 02, then by heating spool 03, the rear that heating spool 02 throttles is the right side of tube body 01, therefore, such as Fig. 5 institutes Show, noise reduction cavity 4 can be one, be arranged on the right side of tube body 1.In this way, to make to reduce in air conditioner refrigerating and heating Liquid stream noise, as shown in figure 5, noise reduction cavity 4 can be two, and is separately positioned on the left and right sides of tube body 1.In order to simplify knot Structure, reduces cost, manufacture easy to process, considers when denoiser 4 is one, to make in air conditioner refrigerating and heating all Liquid stream noise can be reduced, with reference to Fig. 7, the rear flow direction that can make refrigeration valve block 2 and heat the throttling of valve body 3 is all located at tube body 1 Middle part, in this way, noise reduction cavity 4 can be arranged on refrigeration valve block 2 and heating valve body 3 between.I.e., as shown in Figure 7 and Figure 8, tube body 1 The interior direction flowed along refrigerant during air conditioner refrigerating, fixes refrigeration valve block 2 and heating valve body 3 successively, and noise reduction cavity 4 is located at refrigeration valve block Between 2 and heating valve body 3.
To realize that the rear flow direction of the throttling of refrigeration valve block 2 and heating valve body 3 is all located at the middle part of tube body 1, such as Fig. 9 and figure There are refrigeration valve chamber 21, the both ends in the direction flowed in refrigeration valve chamber 21 along refrigerant during air conditioner refrigerating shown in 10, in refrigeration valve block 2 Refrigeration valve chamber import 211 and refrigeration valve chamber outlet 212 are equipped with successively, slidable connection has refrigeration spool 22 in the valve chamber 21 that freezes, Offer refrigeration throttle orifice 23 and refrigeration deflector hole 24 on refrigeration spool 22, the opening at refrigeration throttle orifice 23 both ends respectively with refrigeration Valve chamber import 211 and refrigeration valve chamber outlet 212 correspond to, and the opening of the one end for deflector hole 24 of freezing and refrigeration valve chamber import 211 are right Should, the opening of the other end is corresponding with the inner wall that refrigeration valve chamber 21 sets refrigeration valve chamber to export 212 sides;
Heating in valve body 3 has heating valve chamber 31, and the two of the direction flowed in heating valve chamber 31 along refrigerant during air-conditioning heating End is equipped with heating valve chamber import 311 and heating valve chamber outlet 312 successively, and heating slidable connection in valve chamber 31 has heating spool 32, heat and heating throttle orifice 33 and heating deflector hole 34 offered on spool 32, the opening at heating throttle orifice 33 both ends respectively with Heat valve chamber import 311 and heating valve chamber outlet 312 corresponds to, heat the opening and heating valve chamber import of one end of deflector hole 34 311 correspond to, and the opening of the other end is corresponding with the inner wall that heating valve chamber 31 sets heating valve chamber to export 312 sides.
In this way, with reference to Fig. 9 and Figure 10, when air-conditioning is refrigeration mode, refrigerant flows to right side by the left side of tube body 1, specifically, Refrigerant first passes through refrigeration valve chamber import 211 and enters in refrigeration valve chamber 21, and then the refrigeration spool 22 to freeze in valve chamber 21 is by refrigerant The pressure of flowing is moved to the left, and makes refrigeration throttle orifice 23 and the outlet of refrigeration valve chamber 212 correspondings, one end of refrigeration deflector hole 24 against On the inner wall of the refrigeration valve chamber 21 on 212 side of refrigeration valve chamber outlet, blocked by the inner wall of refrigeration valve chamber 21, refrigerant can only be from refrigeration Throttle orifice 23 circulates, and achievees the purpose that throttling.Then, refrigerant is from 212 outflow of refrigeration valve chamber outlet, and enters in noise reduction cavity 4, by It is bigger than the internal diameter of tube body 1 in the internal diameter of noise reduction cavity 4, and noise suppression network 41 is provided with noise reduction cavity 4, and then refrigerant section can be reduced Noise after stream.Refrigerant enters in heating valve chamber 31, heating spool 32 is cooled after noise reduction cavity 4 from heating valve chamber outlet 312 The pressure of matchmaker's flowing is moved to the left, and heating throttle orifice 33 and heating deflector hole 34 is connected with heating valve chamber import 311, and then Refrigerant flows to the left side of tube body 1 from heating throttle orifice 33 and heating deflector hole 34, and is circulated in coolant circulating system;
With reference to Figure 11, when air-conditioning is heating mode, refrigerant is by the right side of tube body 1 flow direction left side, and specifically, refrigerant first passes through Heat valve chamber import 311 to enter in heating valve chamber 31, and then heat the pressure that the heating spool 32 in valve chamber 31 is flowed by refrigerant Move right, make heating throttle orifice 33 corresponding with the outlet 312 of heating valve chamber, one end of heating deflector hole 34 is resisted against heating valve chamber On the inner wall of the heating valve chamber 31 on the side of outlet 312, blocked by the inner wall of heating valve chamber 31, refrigerant can only be flowed from heating throttle orifice 33 It is logical, achieve the purpose that throttling.Then, refrigerant is from 312 outflow of heating valve chamber outlet, and enters in noise reduction cavity 4, due to noise reduction cavity 4 Internal diameter it is bigger than the internal diameter of tube body 1, and noise suppression network 41 is provided with noise reduction cavity 4, and then making an uproar after coolant throttle can be reduced Sound.Refrigerant enters in refrigeration valve chamber 21, refrigeration spool 22 is flowed by refrigerant after noise reduction cavity 4 from refrigeration valve chamber outlet 212 Pressure moves right, and refrigeration throttle orifice 23 and refrigeration deflector hole 24 is connected with refrigeration valve chamber import 211, and then refrigerant is from system Cold throttle orifice 23 and refrigeration deflector hole 24 flow to the right side of tube body 1, and are circulated in coolant circulating system.
It should be noted that the usually coolant refrigeration flow direction of the refrigeration system of air-conditioning and heating flow direction is opposite Direction, described only for convenient in Fig. 9, Figure 10 and Figure 11, refrigerant in figure flowed from right to left and is considered as coolant refrigeration flow direction, Refrigerant flows from left to right is considered as refrigerant heating flow direction, in actual scheme above-mentioned expression protection domain is not caused to limit It is fixed.
The refrigeration deflector hole that will can freeze for the inner wall for the valve chamber 21 that when refrigeration valve block 2 throttles, freezes on spool 22 24 closure, and heat throttle orifice 33 and heat deflector hole 34 and do not blocked;And when heating the throttling of valve body 3, heat valve chamber 31 Inner wall can by heat spool 32 on heating deflector hole 34 block, and freeze throttle orifice 23 and refrigeration deflector hole 24 do not sealed Stifled, as shown in Figure 10, refrigeration spool 22 is close to the outer contour of one end of refrigeration valve chamber outlet 212, the lubrication groove with the valve chamber 21 that freezes Exterior feature is adapted, and when the spool 22 that freezes slides into one end of refrigeration valve chamber import 211, refrigeration spool 22 and the valve chamber 21 that freezes There is gap between inner wall;Outer contour of the spool 32 close to one end of heating valve chamber outlet 312 is heated, in heating valve chamber 31 Profile is adapted, and when heating spool 32 and sliding into the one end for heating valve chamber import 311, heating spool 32 and heating valve chamber 31 Inner wall between there is gap.
It is as shown in Figure 10 a kind of specifically implementation, the both ends of refrigeration valve chamber 21 are respectively provided with inner chamfer, and freeze spool 22 set outer chamfer close to one end of refrigeration valve chamber outlet 212, and refrigeration spool 22 is flat close to one end of refrigeration valve chamber import 211 End face;The both ends for heating valve chamber 31 are respectively provided with inner chamfer, and one end setting of the close heating valve chamber outlet 312 of heating spool 32 is outer Angle, heating spool 32 are planar end surface close to one end of heating valve chamber import 311.In this way, when refrigeration valve block 2 throttles, refrigeration valve Core 22 is adapted cooperation close to the outer chamfer of one end of refrigeration valve chamber outlet 212 and the inner chamfer of refrigeration valve chamber 21, will can freeze Deflector hole 24 blocks, and heat spool 32 close to one end of heating valve chamber import 311 planar end surface and heating valve chamber 31 it is interior fall Angle certainly exists gap, is not blocked with ensuring to heat throttle orifice 33 and heating deflector hole 34 due to that can not be adapted cooperation;When Heat valve body 3 throttle when, heating spool 32 close to heating valve chamber outlet 312 one end outer chamfer and heating valve chamber 31 it is interior fall Angle is adapted cooperation, can block heating deflector hole 34, and flush end of the spool 22 close to one end of refrigeration valve chamber import 211 that freeze The inner chamfer of face and refrigeration valve chamber 21 certainly exists gap, with ensure to freeze throttle orifice 23 and system due to that can not be adapted cooperation Cold deflector hole 24 is not blocked.
The quantity of refrigeration throttle orifice 23 and deflector hole 24 of freezing on refrigeration spool 22 and setting position, and heating spool The quantity for heating throttle orifice 33 and heating deflector hole 34 and setting position on 32, can flexibly be set according to actual needs.For Simplified structure, and be easily achieved, as shown in Figure 10, refrigeration throttle orifice 23 is one, is arranged on the center of refrigeration spool 22, system Cold deflector hole 24 is two, respectively close to the outer peripheral both sides of refrigeration spool 22;It is one to heat throttle orifice 33, is arranged on system The center of thermal valve core 32, heating deflector hole 34 is two, respectively close to the outer peripheral both sides of heating spool 32.
In order to filter the impurity in refrigerant, entrance when refrigeration valve block 2 is corresponded in tube body 1 to coolant throttle, with And entrance when corresponding to heating valve body 3 to coolant throttle is both provided with filter screen 5.
It should be noted that the movement of refrigeration spool 22 and heating spool 32 can be driven by refrigerant pressure, certainly It can be driven by other driving devices, for example, refrigeration spool 22 and heating spool 32 are that magnetic material is made, and then using electricity Magnetic coil driving refrigeration spool 22 and the movement for heating spool 32, can also realize restriction sleeve in refrigeration and heating to refrigerant Throttling.
On the other hand, the embodiment of the present invention also provides a kind of air conditioner, is equipped with the cooling cycle system of the air conditioner upper The restriction sleeve stated.
The air conditioner of the embodiment of the present invention, due to being equipped with above-mentioned restriction sleeve in cooling cycle system, has same Beneficial effect, i.e. liquid stream noise of the restriction sleeve in throttling process can be reduced.
It should be noted that the restriction sleeve of the embodiment of the present invention, can be applied in all changes in temperature refrigeration systems, bag Include mobile air conditioner, wall-hanging air conditioner, integral air conditioner, and other equipment with changes in temperature refrigeration system.
It these are only the embodiment of the present invention, but protection scope of the present invention is not limited thereto, it is any to be familiar with Those skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in should all be covered Within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection domain described in claim.

Claims (10)

1. a kind of restriction sleeve, has the tube body of refrigerant for air-conditioning refrigeration system, including circulation, refrigeration is fixed with the tube body Valve body and heating valve body, the throttling when refrigeration valve block is used for air conditioner refrigerating to refrigerant, the valve body that heats are used for air-conditioning system To the throttling of refrigerant when hot, it is characterised in that be equipped with noise reduction cavity in the tube body, the internal diameter of the noise reduction cavity is more than the tube body Internal diameter, the exit when noise reduction cavity is located at the refrigeration valve block to coolant throttle, and/or, positioned at the heating valve body Exit during to coolant throttle.
2. restriction sleeve according to claim 1, it is characterised in that the internal diameter of the noise reduction cavity is greater than or equal to the pipe Two times of internal footpath.
3. restriction sleeve according to claim 1, it is characterised in that be equipped with noise suppression network in the noise reduction cavity.
4. according to restriction sleeve according to any one of claims 1 to 3, it is characterised in that along air conditioner refrigerating in the tube body When refrigerant flowing direction, fix the refrigeration valve block and the heating valve body, the noise reduction cavity successively and be located at the refrigeration valve Between body and the heating valve body.
5. restriction sleeve according to claim 4, it is characterised in that there is refrigeration valve chamber in the refrigeration valve block, it is described The both ends in the direction that refrigeration valve intracavitary is flowed along refrigerant during air conditioner refrigerating are equipped with refrigeration valve chamber import and the outlet of refrigeration valve chamber successively, The refrigeration valve intracavitary slidable connection has refrigeration spool, and refrigeration throttle orifice and refrigeration water conservancy diversion are offered on the refrigeration spool Hole, the opening at the refrigeration throttle orifice both ends is corresponding with the refrigeration valve chamber import and the refrigeration valve chamber outlet respectively, described The opening of the one end for deflector hole of freezing is corresponding with the refrigeration valve chamber import, and the opening of the other end sets institute with the refrigeration valve chamber The inner wall for stating refrigeration valve chamber outlet side corresponds to;
There are heating valve chamber, the both ends in the direction flowed in the heating valve chamber along refrigerant during air-conditioning heating in the heating valve body Heating valve chamber import and the outlet of heating valve chamber are equipped with successively, and slidable connection has heating spool, the system in the heating valve chamber Offer heating throttle orifice and heating deflector hole on thermal valve core, the opening at the heating throttle orifice both ends respectively with the heating valve Chamber import and the heating valve chamber outlet correspond to, the opening of one end of the heating deflector hole and the heating valve chamber import pair Should, the opening of the other end sets the inner wall of the heating valve chamber outlet side corresponding with the heating valve chamber.
6. restriction sleeve according to claim 5, it is characterised in that the refrigeration spool is close to the refrigeration valve chamber outlet One end outer contour, with it is described refrigeration valve chamber Internal periphery be adapted, and when it is described refrigeration spool slide into the refrigeration valve During one end of chamber import, there is gap between the inner wall of the refrigeration spool and the refrigeration valve chamber;
The heating spool is mutually fitted close to the outer contour of one end of the heating valve chamber outlet with the Internal periphery of the heating valve chamber Should, and when the heating spool slides into one end of the heating valve chamber import, the heating spool and the heating valve chamber Inner wall between there is gap.
7. restriction sleeve according to claim 6, it is characterised in that the both ends of the refrigeration valve chamber are respectively provided with inner chamfer, The refrigeration spool sets outer chamfer close to one end of the refrigeration valve chamber outlet, and the refrigeration spool is close to the refrigeration valve chamber One end of import is planar end surface;
The both ends of the heating valve chamber are respectively provided with inner chamfer, and the heating spool is set close to one end of the heating valve chamber outlet Outer chamfer, the heating spool are planar end surface close to one end of the heating valve chamber import.
8. restriction sleeve according to claim 5, it is characterised in that the refrigeration throttle orifice is one, is arranged on described The center of refrigeration spool, the refrigeration deflector hole is two, respectively close to the outer peripheral both sides of the refrigeration spool;The system Thermal center discharge orifice is one, is arranged on the center of the heating spool, the heating deflector hole is two, respectively close to the heating The outer peripheral both sides of spool.
9. restriction sleeve according to claim 1, it is characterised in that the refrigeration valve block is corresponded in the tube body to refrigerant Entrance during throttling, and entrance when the corresponding heating valve body is to coolant throttle are both provided with filter screen.
10. a kind of air conditioner, it is characterised in that be equipped with the cooling cycle system of the air conditioner any in claim 1~9 Restriction sleeve described in.
CN201711013773.3A 2017-10-26 2017-10-26 Throttling sleeve and air conditioner Withdrawn CN107917557A (en)

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CN114791184A (en) * 2022-03-16 2022-07-26 青岛海尔空调器有限总公司 Throttling device, air conditioner and method for vacuumizing and filling refrigerant into air conditioner

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WO2017158716A1 (en) * 2016-03-15 2017-09-21 三菱電機株式会社 Throttle mechanism and air-conditioning system
CN207365517U (en) * 2017-10-26 2018-05-15 海信科龙电器股份有限公司 Throttling sleeve and air conditioner

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JP2004251357A (en) * 2003-02-19 2004-09-09 Taiheiyo Seiko Kk Tube material, expansion unit, and refrigerant circuit module
US20080000255A1 (en) * 2006-06-30 2008-01-03 Wilson Shawn T Combination restrictor cartridge
CN201335574Y (en) * 2008-10-30 2009-10-28 张良灿 Air conditioning throttling sleeve
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CN110454581A (en) * 2019-06-11 2019-11-15 新昌县丰亿电器有限公司 A kind of noise reduction throttle valve and throttle valve component
CN114791184A (en) * 2022-03-16 2022-07-26 青岛海尔空调器有限总公司 Throttling device, air conditioner and method for vacuumizing and filling refrigerant into air conditioner

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