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.