CN101738024B - Electrical throttling distributor - Google Patents
Electrical throttling distributor Download PDFInfo
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- CN101738024B CN101738024B CN2008101813598A CN200810181359A CN101738024B CN 101738024 B CN101738024 B CN 101738024B CN 2008101813598 A CN2008101813598 A CN 2008101813598A CN 200810181359 A CN200810181359 A CN 200810181359A CN 101738024 B CN101738024 B CN 101738024B
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- electric throttling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention belongs to an electrical throttling distributor for a refrigerating system, in particular to an electrical throttling distributor for an air conditioner system. The prior art has the defects of multiple components, high manufacture cost and complicated pipeline connection. As one electrical throttling distributor is arranged between two heat changers or among heat exchanger groups, the intelligent flow distribution of coolant of each heat exchanger or each group of heat exchangers can be realized and the throttling is realized simultaneously, therefore the component parts of the system under the same function are reduced; the flow distribution of each heat exchanger or among the heat exchangers is uniform; each heat exchanger or each group of heat exchangers can fully perform the heat exchange function, and reduce the waste of heat exchange area, thereby enhancing the efficiency of the whole system; and the system has the advantages of simple manufacture, convenient installation and low manufacture cost.
Description
Technical field
The invention belongs to the electric throttling distributor that a kind of refrigeration system is used, particularly the electric throttling distributor used of a kind of air-conditioning system.
Background technology
Air-conditioning system of the prior art mostly comprises the parts such as indoor heat converter, outdoor heat converter, compressor and throttling arrangement, one drag in many air-conditioning systems at some, in order to improve the heat exchange efficiency of heat exchanger, the assignment of traffic of inner refrigerant is technological difficulties always; Many systems all adopt electric expansion valve that each indoor set is controlled separately and dispense flow rate, it is disclosed scheme in 200610145015.2 the application for a patent for invention Publication Specification such as the application number of on November 29th, 2006 application, just adopt and transfer valve module to be used for the electric expansion valve that intelligence is regulated described each indoor set to each indoor set by a control, thereby realize that one drags the distribution according to need of many air conditioner coolant flow quantities.Be the 02137580.1 disclosed scheme of patent of invention specification of announcing on October 23rd, 2002 application and the application number of authorizing on September 26th, 2007 and for example, it also is the flow that controls to separately the refrigerant of each indoor set by the controller enforcement of controlling respectively each indoor set, thereby finish the assignment of traffic of multi-split air conditioner, and automatically regulate open degree and the refrigerant flow of electric expansion valve, make every indoor set assignment of traffic even, thereby improve the efficient of whole air-conditioning system.
Control to the flow of the refrigerant of each indoor set by above-mentioned control mode, the flow of each indoor set can be realized separately control, service precision is higher, but the relative usage parts are more, are that each indoor set of disclosed scheme all disposes separately an electric expansion valve and valve module is transferred in a control in 200610145015.2 the application for a patent for invention Publication Specification such as the application number of on November 29th, 2006 application.Number of components is many like this, and manufacturing cost is very high, and pipeline connects complicated, and simultaneously because the quantity of control circuit and valve is corresponding increases, its rate of breakdown also may corresponding increasing.The application number that on September 26th, 2007 authorized is to have too same problem in the 02137580.1 patent of invention specification of announcing.
Summary of the invention
The technical assignment of the technical problem to be solved in the present invention and proposition is that to overcome the number of components that is used for throttling and dispense flow rate that prior art exists many, manufacturing cost is high, pipeline connects complicated problem, refrigeration system for the multi-group heat exchanger that uses a plurality of heat exchangers or a heat exchanger comprises air-conditioning system, provides a kind of multi-group heat exchanger at a plurality of heat exchangers or a heat exchanger to carry out the electric throttling distributor that intelligent flow distributes and finish simultaneously throttling.
For this reason, the present invention is by the following technical solutions:
A kind of electric throttling distributor, comprise discharge connection and the stepper motor of a driving usefulness and the transmission mechanism that stepper motor drives that shell, entrance sleeve, a plurality of throttle orifice and a plurality of and described throttle orifice are connected, be formed with a valve pocket in the described shell, entrance sleeve is connected with described valve pocket, and this electric throttling distributor drives the distribution that transmission mechanism in the valve pocket rotates to realize flow between described a plurality of throttle orifice by stepper motor.
Preferably, described stepper motor comprises described shell outward fixing coil component and the magnetic rotor component corresponding with described coil component magnetic pole in the shell, thereby thereby rotates the distribution that realizes flow between described a plurality of throttle orifices by make magnetic rotor component in the shell rotate the transmission mechanism that drives in the valve pocket to described coil component energising during work.
Preferably, described transmission mechanism and described magnetic rotor component are fixed together, and described magnetic rotor component drives described transmission mechanism when rotating and rotates together.
Optionally, the distribution of flow between to be described magnetic rotor component when work by one direction rotate to realize described a plurality of throttle orifices.
Optionally, described magnetic rotor component when work by come back rotation realize described a plurality of throttle orifices between the distribution of flow.
Preferably, described electric throttling distributor also includes one and forms the outer shell base of described valve pocket with described shell, interior fixing with body seal forms described valve pocket thereby this outer shell base all or partly stretches into described shell, perhaps thereby described shell partly stretches into to seal in the described outer shell base to fix and forms described valve pocket, and described a plurality of throttle orifices have at least one to be arranged on the described outer shell base.
Optionally, described outer shell base is a valve seat, and interior fixing with body seal forms described valve pocket thereby this valve seat or part valve seat stretch into described shell, and described a plurality of throttle orifices have at least one to be arranged on the described valve seat.
Preferably, valve seat is being provided with a planar bottom surface near a side in the valve pocket, and described a plurality of throttle orifices have at least on the planar bottom surface that is arranged on described valve seat.
Optionally, described transmission mechanism also comprises a guiding valve, and described guiding valve matches with described valve seat, thereby realizes the distribution to flow between described a plurality of throttle orifices.
Another preferred version, described outer shell base are a base member, and described a plurality of throttle orifices have at least one to be arranged on the described base member.
Preferably, the distribution of flow is to rotate the time scale of controlling respectively described a plurality of throttle orifice and described valve pocket conducting by the transmission mechanism in the described stepper motor drive valve pocket to realize between described a plurality of throttle orifice.
Electric throttling distributor of the present invention is applicable to distribution and the throttling of the throttle orifice more than 2, and is more suitable to 3 above throttle orifices, and it is more obvious to reduce cost.
The present invention is by arranging an electric throttling distributor before a plurality of heat exchangers or multi-group heat exchanger, make the flow of refrigerant of every group of heat exchanger of each heat exchanger or heat exchanger can realize smart allocation and finish simultaneously throttling, the expansion valve and the distributor that use in the original system have been substituted, thereby the parts of the system under the minimizing said function, make between each heat exchanger or the every group of heat exchanger assignment of traffic even, make every heat exchanger or every group of heat exchanger give full play to its heat exchange effect, reduce the waste of heat exchange area, thereby improve the efficient of whole system, the simultaneity factor manufacturing is simple, amount of parts is few, install convenient and simple for connectionly, manufacturing cost is lower.
Description of drawings
Fig. 1: the structural representation of the first embodiment of electric throttling distributor of the present invention;
Fig. 2: the partial structurtes schematic diagram at the valve seat of electric throttling distributor shown in Figure 1 and guiding valve position;
Fig. 3: the valve seat of the second embodiment of electric throttling distributor of the present invention and the partial structurtes schematic diagram at guiding valve position;
Fig. 4: the structural representation of the third embodiment of electric throttling distributor of the present invention;
Fig. 5: the partial structurtes schematic diagram at the valve seat of electric throttling distributor shown in Figure 4 and guiding valve position;
Fig. 6: be the view of the use of electric throttling distributor of the present invention in a kind of domestic air-conditioning system;
Fig. 7: the structural representation of the 4th kind of embodiment of electric throttling distributor of the present invention;
Fig. 8: the structural representation of the 5th kind of embodiment of electric throttling distributor of the present invention;
Fig. 9: the partial structurtes schematic diagram at the base member of electric throttling distributor shown in Figure 8 and guiding valve position;
Figure 10: the contour structures schematic diagram of the 6th kind of embodiment of electric throttling distributor of the present invention;
Figure 11: the partial structurtes schematic diagram at the valve seat of electric throttling distributor shown in Figure 10 and guiding valve position;
Figure 12: the structural representation of the 7th kind of embodiment of electric throttling distributor of the present invention;
The A of the electric throttling distributor of Figure 13: Figure 12-A partial schematic sectional view.
The specific embodiment
Electric throttling distributor of the present invention goes for distribution and the throttling of flow of the refrigeration system of a plurality of heat exchangers or multi-group heat exchanger, such as domestic air conditioning or fridge-freezer etc., be particularly suitable in the domestic air conditioning one and drag in many air-conditionings and the novel heat exchanger and adopt the multi-group heat exchanger combination to carry out using in the system of heat exchange for improving systematic energy efficiency ratio.Below in conjunction with accompanying drawing, specify embodiments of the present invention:
As shown in Figure 1, Fig. 1 is the structural representation of the first embodiment of electric throttling distributor of the present invention.Fig. 2 is the partial structurtes schematic diagram at electric throttling distributor valve seat shown in Figure 1 and guiding valve position.
This electric throttling distributor has an import 701a, three throttle orifice 702a, 702b, 702c, three throttle orifice 702a, 702b, 702c are connected with three discharge conection 703a, 703b, 703c by exit passageway 704a, 704b, 704c respectively, and three throttle orifice 702a, 702b, 702c can arrange the latus rectum of a chamfering (not shown) and three throttle orifice 702a, 702b, 702c less than the latus rectum of three discharge conection 703a, 703b, 703c.Electric throttling distributor comprises shell 709 and valve seat 705 as outer shell base, and shell 709 and valve seat 705 be common to form a valve pocket 710, and the upper half part of this valve seat 705 is fixed in the described valve pocket; Valve pocket 710 is taken over 701 by import 701a with input and is connected, described import 701a is arranged on the valve seat 705 and with valve pocket 710 and communicates, valve seat 705 is being provided with a planar bottom surface 705a near the first half in the valve pocket 710, and described three throttle orifice 702a, 702b, 702c are arranged on the planar bottom surface 705a of valve seat 705.The stepper motor of the driving usefulness in the present embodiment comprises that shell 710 is outer fixing as the coil component 711 of step motor stator part and the magnetic rotor component 707 as the mover part in the shell; The transmission mechanism that can come back rotation under magnetic rotor component drives is drive link 708 and forms with the guiding valve 706 that magnetic rotor component and drive link rotate, and drive link 708 is fixed-type together during by the magnetic rotor component injection mo(u)lding; This electric throttling distributor drives the distribution that transmission mechanism moves to realize flow between described a plurality of throttle orifice by stepper motor.When system moves, after the coil component 711 of electric throttling distributor receives corresponding pulse signal, thereby realize the break-make between a plurality of phase places, thereby the magnetic rotor component 707 not stalls in the drive shell are moving, magnetic rotor component drives drive link 708 again and guiding valve 706 constantly rotates, thereby a plurality of throttle orifice 702a on the control valve seat, 702b, the time scale of 702c and valve pocket 710 conductings, thereby realize described a plurality of throttle orifice 702a, 702b, the distribution of flow between the 702c, cold-producing medium are assigned to respectively every group of heat exchanger or heat exchanger after by the throttle orifice throttling of electric throttling distributor again.For guaranteeing the correct phase relation between coil component 711 and the magnetic rotor component 707, also have a location to lock mechanism between the two and be fixed.
During concrete the rotation, the rotation of clockwise or counterclockwise not constant speed can rotate as carry out continuously to a direction to magnetic rotor component continuously, particularly, speed when the flow of each throttle orifice 702a, 702b, 702c just depends on when the latus rectum of each throttle orifice 702a, 702b, 702c and guiding valve rotate by this throttle orifice, if the velocity of rotation when guiding valve passes through throttle orifice 702a conducting is slower, then correspondingly the time of the conducting by this throttle orifice 702a is corresponding longer, and is just corresponding higher by the flow proportional of this throttle orifice 702a; Similarly, if the velocity of rotation of guiding valve when the throttle orifice 702a conducting is very fast, then correspondingly the time of the conducting by this throttle orifice 702a is corresponding shorter, and is just corresponding lower by the flow proportional of this throttle orifice 702a; The situation of other several throttle orifices also is the same, just no longer repeats here.
Another working method is such, be provided with a stop mechanism (not shown in FIG.) between magnetic rotor component 707 or transmission mechanism and the valve seat 705, particularly, on the movable parts such as magnetic rotor component 707 or transmission mechanism, a stop rod or scotch to be set also, correspondingly on the fixed parts such as valve seat 705 or shell 709, also arrange one with stop rod or scotch accordingly scotch or stop rod; During concrete the rotation, the stop rod was run into just no longer rotation of scotch when magnetic rotor component 707 forwarded this correspondence position to, at this moment can transfer counter-rotation to or before the stop rod is run into scotch, just change counter-rotation into, magnetic rotor component 707 is exactly continuously to carry out reciprocating rotation during specific works like this, pass through each throttle orifice 702a of guiding valve 706 conductings by control, 702b, the corresponding time scale of 702c, just can realize that electric throttling distributor is to each throttle orifice 702a, 702b, the distribution of the flow of 702c, similarly, each throttle orifice 702a, 702b, the flow of 702c just depends on each throttle orifice 702a, 702b, the time scale of this throttle orifice of conducting when the latus rectum of 702c and guiding valve rotate, speed during namely by this throttle orifice, if the velocity of rotation when guiding valve passes through throttle orifice 702a conducting is slower, then correspondingly the time of the conducting by this throttle orifice 702a is corresponding longer, and is just corresponding higher by the flow proportional of this throttle orifice 702a; Similarly, if the velocity of rotation of guiding valve when the throttle orifice 702a conducting is very fast, then correspondingly the time of the conducting by this throttle orifice 702a is corresponding shorter, and is just corresponding lower by the flow proportional of this throttle orifice 702a.Simultaneously in this embodiment, if system need to no longer keep the flow of certain throttle orifice distributing, such as, in the multi-split air conditioner wherein certain indoor heat converter close when not needing flow, discharge connection and the corresponding throttle orifice of the electric throttling distributor that is connected with this indoor heat converter so also flow through without the need for cold-producing medium, at this moment 707 needs drive drive disk assemblies 708 of magnetic rotor component and guiding valve 706 are at other several throttle orifices such as 702a, come back rotation just passable between the position of 702b conducting, can realize like this function that certain throttle orifice is wherein closed.Simultaneously this mode also helps the position relationship of determining between guiding valve 706 and the valve seat 705, the flow generation error that cumulative errors that can be when not rotating and causing are distributed.
Another embodiment is such, as shown in Figure 3, in the electric throttling distributor, on valve seat, also be processed with a recess 712a who is communicated with throttle orifice 702b, 702c, like this, when guiding valve covers the part throttle orifice, still can ensure certain bare flow and flow to these by throttle orifice that guiding valve covered by recess 712a, as shown in the figure, in the situation that throttle orifice 702b is covered by guiding valve, throttle orifice 702b still can some cold-producing medium from recess 712a by arriving throttle orifice 702b; Arrange like this because the existence of recess between guiding valve and the valve seat, friction between guiding valve and the valve seat can reduce, thereby the resistance in the time of can reducing the magnetic rotor component rotation, reduce the driving power of stepper motor, simultaneously also can make fluid divide the fluctuation of timing to reduce, the noise of the fluid of the cold-producing medium that is assigned with is reduced; The speed that the magnetic rotor component band movable pulley that can slow down in addition rotates.Other operation principle is all identical with embodiment described above with working method in this embodiment, just no longer repeats here.
Fig. 4 is the third embodiment of electric throttling distributor of the present invention, and the valve seat of this embodiment and guiding valve are as shown in Figure 5.As shown in the figure, be provided with 2 planes on the valve seat, first planar bottom surface at valve seat is provided with throttle orifice 702a, 702b, 702c, on second plane of valve seat, also be provided with simultaneously throttle orifice 713a, 713b, the 713c of another normal open on the next door of throttle orifice 702a, 702b, 702c, per two throttle orifices such as 702c and throttle hole 713c are communicated with discharge connection 703c simultaneously, and the latus rectum of throttle orifice 702a, 702b, 702c and throttle hole 713a, 713b, 713c is all respectively less than the latus rectum of discharge conection 703a, 703b, 703c; Like this at guiding valve 706 when not stall is moving under magnetic rotor component drives, the flow of throttle orifice 702c changes according to allocation result, the flow of throttle orifice 713c then remains unchanged substantially, and the flow of discharge connection is exactly the flow sum of throttle orifice 702c and throttle orifice 713c like this.The advantage that arranges like this is, owing to be provided with the throttle orifice 713c of normal open, correspondingly the flow of throttle orifice 702c is just so long as allow that part flow of variation just passable in the system, throttle orifice 702c just can process smallerly like this, similarly, other throttle orifice 702a, 702b also can be smaller, like this, this of valve seat plane 705a just can arrange littlely, and the flow of coupled discharge connection then still can satisfy the needs of system.So correspondingly guiding valve also can be smaller, and the resistance that rotates so just can reduce, and magnetic rotor component can be reduced equally, thereby stepper motor integral body be reduced and the power of stepper motor is also reduced, thereby realize miniaturization, the use amount of minimizing material.Because the flow of discharge connection partly is to come from throttle hole, the fluctuation of the flow that distributes so also can reduce, thereby more is conducive to Systems balanth simultaneously.Other operation principle and working method are all same as the above first embodiment in this embodiment, just no longer repeat here.
Fig. 6 is that above-mentioned electric throttling distributor is applied to the schematic diagram in the air-conditioning system, as shown in the figure, this air-conditioning system comprises compressor 1, outdoor heat converter 2, indoor heat converter 5, indoor heat converter 5 is by three groups of heat exchangers: First Heat Exchanger 5a, the second heat exchanger 5b, the 3rd heat exchanger 5c are composed in parallel, the benefit that indoor heat converter arranges like this is to give full play to the heat exchanger effectiveness of indoor heat converter, improves the Energy Efficiency Ratio of this air-conditioning system.Simultaneously all be provided with a temperature sensor 501,502,503 at the outlet position of three groups of heat exchangers.During concrete operation, air-conditioning system is according to three groups of heat exchanger 5a, 5b, the set temperature sensor 501 in 5c outlet position, 502,503 temperature signal, analysis through control system is judged, send corresponding control signal to electric throttling distributor, the cold-producing medium that electric throttling distributor will be come from outdoor heat converter is according to the indoor situation of air-conditioning system and arrange and require and the flow of signal that outlet temperature situation that every group of heat exchanger detects is sent after comprehensively judging three throttle orifices above distributing and finish simultaneously throttling, then make be assigned with and throttling after cold-producing medium flow to corresponding heat exchanger.
The mode of utilizing the electric throttling device to distribute generally is such, increase supply ratio to the cold-producing medium of this heat exchanger for the higher heat exchanger of outlet temperature, as: the control system of air-conditioning is according to three groups of heat exchanger 5a that detect indoor heat converter 5,5b, the temperature sensor 501 that the outlet position of 5c is set, 502, the requirement of the operating mode that 503 temperature and air-conditioning are set, the outlet temperature of judging which group in three groups of heat exchangers is higher, when sending corresponding control signal stepper motor rotated according to judged result to the throttle orifice complete conduction position corresponding with this group heat exchanger, thereby increase the supply ratio of this throttle orifice, thereby make the flow proportional increase by the cold-producing medium of the discharge connection that is communicated with this throttle orifice and the heat exchanger that is communicated with this discharge connection, namely improve air-conditioning system to the supply of the flow of this group heat exchanger, the outlet temperature of this group heat exchanger just can reduce like this, can also control in case of necessity the operation of other parts such as blower fan.Another mode is, according to three groups of heat exchanger 5a that detect indoor heat converter 5,5b, the temperature sensor 501 that the outlet position of 5c is set, 502, the requirement of the operating mode that 503 temperature and air-conditioning are set, the outlet temperature of judging which group in three groups of heat exchangers is higher, when sending corresponding control signal stepper motor rotated according to judged result during to the throttle orifice conduction position corresponding with this group heat exchanger corresponding velocity of rotation slow down, thereby increase the supply ratio of this throttle orifice, make the flow proportional increase by the cold-producing medium of the discharge connection that is communicated with this throttle orifice and the heat exchanger that is communicated with this discharge connection, namely improve air-conditioning system to the supply of the flow of this group heat exchanger, the outlet temperature of this group heat exchanger just can reduce like this, can also control in case of necessity the operation of other parts such as blower fan.
Another method of salary distribution is with top just in time opposite, to utilize the electric throttling device to reduce supply ratio to the cold-producing medium of this heat exchanger for outlet temperature heat exchanger on the low side, such as the three group heat exchanger 5as of control system according to detection indoor heat converter 5,5b, the temperature sensor 501 that the outlet position of 5c is set, 502, the requirement of the operating mode that 503 temperature and air-conditioning are set, the outlet temperature of judging which group in three groups of heat exchangers is on the low side, when sending corresponding control signal stepper motor rotated according to judged result near corresponding velocity of rotation quickening of the time throttle orifice conduction position corresponding with this group heat exchanger or turn to and make this throttle orifice closed position, thereby the flow proportional of the cold-producing medium that flows out by this throttle orifice is reduced, thereby reduce air-conditioning system to the supply of the flow of this group heat exchanger, the outlet temperature of this group heat exchanger just can rise like this.This mode reaches too a kind of reasonable distribution cold-producing medium and improves the ratio of heat transfer effect, and this process circulates all the time and guarantees that cold-producing medium can reasonably distribute all the time.
As the improvement to the third embodiment of the present invention, Fig. 7 is the 4th kind of embodiment of electric throttling distributor of the present invention, the operating principle of this embodiment and manner of execution are all same as the above third embodiment, be the side that the import 701b described in this embodiment and entrance sleeve are arranged at shell and valve seat, the bottom space of valve seat can be left the installation of discharge connection for like this; Entrance sleeve can also be connected to the peripheral side of shell in addition, be connected on the described valve seat and be not limited to, as directly being connected on the shell, corresponding proper when more at throttle orifice like this, can fully improve the utilization rate of valve seat, the reliability in the time of to bring certain difficulty of processing such as welding otherwise throttle orifice, discharge connection and import, entrance sleeve are set together.
Fig. 8 is the 5th kind of embodiment of electric throttling distributor of the present invention, and Fig. 9 is the partial structurtes schematic diagram at base member and guiding valve position among Fig. 8.As shown in the figure, this electric throttling distributor comprises a shell 709 and a base 714, base 714 is valve pocket 710 of fixing and common formation with shell 709 welded seals, is provided with an import 701a and a plurality of outlet through hole on the base 714 and is welded with the entrance sleeve 701 that communicates with import 701a, discharge conection 703a, the 703b, the 703c that communicate with a plurality of outlet through holes; The noise control that also is fixed with in addition a stop pin 715 on the base 714 and is set on the stop pin 715 overlaps 716.On base 714, also be embedded simultaneously and be fixed with a base plate 717, base plate is provided with a smooth flat 717a, match with base 714 in the position of base plate 717, throttle orifice 702a, 702b on the base plate 717,702c are matched with outlet through hole on the base respectively, thereby a plurality of throttle orifice 702a, 702b, the 702c that arrange are connected with discharge conection 703a, 703b, 703c respectively, and the latus rectum of throttle orifice 702a, 702b, 702c is respectively less than the latus rectum of discharge conection 703a, 703b, 703c.Base plate 717 part embeds base 714 and is fixed together by crimping, and base 714 is fixed together as outer shell base with base plate 717 in this embodiment.Certainly base plate is not limited to this mode that directly is fixed together with base, and can also add a reed in the centre and indirectly be fixed together, and fixed form can also adopt rivets or other fixed form such as spot welding.
Similarly, outside shell 709, be fixed with the solenoid parts 711 as the step motor stator part, 710 of valve pockets in the shell 709 are provided with the magnetic rotor component 707 as stepper motor mover part, dispose a stop rod on the magnetic rotor component 707, with noise control on the stop pin 715 recited above overlap 716 1 when being used from electric throttling distributor and opening the location and the location in the rotation process.In order to guarantee between coil component 711 and shell 709a, have a locator card locking apparatus to be fixed as the solenoid parts 711 of step motor stator part and as the phase place between the magnetic rotor component 707 of stepper motor mover part.With magnetic rotor component 707 is fixed together drive link 708 arranged, drive link 708 is fixed-type together during by the magnet rotor injection mo(u)lding, the bottom of drive link 708 arranges and is fixed with guiding valve 706, be provided with a breach on the guiding valve 706, be used for the location with the fixing driven rod (figure does not mark) of magnetic rotor component 707, when electric throttling distributor moves, the coil component 711 of electric throttling distributor receives the pulse signal that systems control division part is sent, constantly break-make conversion between a plurality of phase places, thereby the magnetic rotor component 707 that drives in the shell 709 does not stop to come back rotation, magnetic rotor component drives drive link 708 again and guiding valve 706 constantly comes back rotation, thereby a plurality of throttle orifice 702a on the control base plate 717,702b, the time scale of 702c and valve pocket 710 conductings, thus realize described a plurality of throttle orifice 702a, 702b, the distribution of flow between the 702c.
During concrete the rotation, when magnetic rotor component 707 forwards stop rod to and noise control cover 716 on the stop pin 715 contacts this position or before not arriving this position, just no longer be rotated further, but transfer counter-rotation to, magnetic rotor component 707 is exactly continuously to carry out reciprocating rotation during specific works like this, pass through each throttle orifice 702a of guiding valve 706 conductings by control, 702b, the corresponding time scale of 702c, just can realize that electric throttling distributor is to each throttle orifice 702a, 702b, the distribution of the flow of 702c, similarly, each throttle orifice 702a, 702b, the flow of 702c just depends on each throttle orifice 702a, 702b, the time scale of the latus rectum of 702c and the conducting of each throttle orifice, speed when passing through this throttle orifice when rotating such as guiding valve, if the velocity of rotation when guiding valve passes through throttle orifice 702a conducting is slower, then correspondingly the time of the conducting by this throttle orifice 702a is corresponding longer, and is just corresponding higher by the flow proportional of this throttle orifice 702a; Similarly, if the velocity of rotation when guiding valve passes through throttle orifice 702a conducting is very fast, then correspondingly the time of the conducting by this throttle orifice 702a is corresponding shorter, flow proportional by this throttle orifice 702a is just corresponding lower, and at this moment correspondingly the allocation proportion of the discharge conection 703a flow corresponding with throttle orifice 702a is also just lower.Then carry out at regular intervals one-time positioning, to guarantee the position relationship between guiding valve and the base plate.
In this embodiment, described base plate 717 adopts stamping processing, the light face when the plane 717a of described base plate adopts punching press, and this side surface fineness of base plate is better like this.Adopt the base plate of punch process to make up the use amount that can reduce material with base, adopt simultaneously the base plate of punching press can improve the uniformity of throttle orifice; Correspondingly, described shell 709 can also be set to two step-like parts, in this embodiment, the upper dimension of shell 709 can reduce, correspondingly coil component and magnetic rotor component all can reduce, thereby be conducive to realize miniaturization, the power of motor also can reduce simultaneously, reduces the use amount of material when reducing power consumption.Other operation principle is all identical with the first embodiment described above with working method, just no longer repeats here.
The throttle orifice of electric throttling distributor is 3 in the embodiment recited above, and this is not to be confined to 3, just adopts 3 can say something, and can not become again very complicated.Electric throttling distributor can arrange according to the needs of system the quantity of discharge conection and throttle orifice fully, be to drag 5 o'clock such as air-conditioning system, when air-conditioning need to be controlled flow respectively to 5 indoor heat converters, correspondingly the throttle orifice of electric throttling distributor and discharge conection also will keep more than 5 or 5 at least; And air-conditioning system is to drag 4 o'clock, when air-conditioning need to be controlled flow respectively to 4 indoor heat converters, correspondingly the throttle orifice of electric throttling distributor and discharge conection also will keep more than 4 or 4 at least, because we can adopt 2 throttle orifices or indoor heat converter of more orifices controls, this can arrange fully as required.
The below more by reference to the accompanying drawings 10 and Figure 11 another specific embodiment of electric throttling distributor of the present invention is once described, Figure 10 is the schematic appearance of this electric throttling distributor, and Figure 11 is the guiding valve of this embodiment electric throttling distributor and the partial schematic diagram at base position.This embodiment other side is identical with the 5th embodiment shown in Figure 8, just the throttle orifice of this embodiment is 6: 702a, 702b, 702c, 702d, 702e, 702f, the discharge conection that correspondingly is connected with throttle orifice also is 6: 703a, 703b, 703c, 703d, 703e, 703f, electric throttling distributor distributes corresponding refrigerant flow in a minute timing according to control signal between 6 throttle orifices.Other part of this invention embodiment is just no longer given unnecessary details here with above-mentioned embodiment.
The present invention also has a kind of embodiment as shown in figure 12, and Figure 12 is the structural representation of the 7th kind of embodiment of electric throttling distributor of the present invention, and Figure 13 is the A-A partial schematic sectional view of the electric throttling distributor of Figure 12.This electric throttling distributor comprises a shell 809, valve body 805 with a valve pocket 810 of shell 809 welding formation, valve body 805 is the outer shell base in this embodiment, valve body 805 radially position is provided with throttle orifice 804a, 804b, 804c, with throttle orifice 804a, 804b, the discharge connection 803a that 804c is communicated with, 803b, 803c is weldingly fixed on the valve body, throttle orifice 804a, 804b, the latus rectum of 804c is less than coupled logical discharge connection 803a, 803b, the latus rectum of 803c, housing exterior is fixed with the solenoid parts 811 as the step motor stator parts, be provided with the magnetic rotor component 807 as stepper motor mover part relative with solenoid parts 811 in the shell, as transmission mechanism in this embodiment is axle 808, coil component 811 consists of stepper motor band moving axis 808 with magnetic rotor component 807 and rotates, the external diameter of the some of axle 808 in valve body 805 and the internal diameter of valve body 805 adapt, keep a certain amount of gap that can freely rotate such as 0.10～0.30mm, valve body 805 also is provided with an import 802 and is welded with the entrance sleeve 801 that is connected with import 802, the inner chamber of valve body also is provided with a holding tank 805a for fluid communication at import 802 positions, by holding tank 805a valve pocket 810 and import 802 complete conductings, simultaneously also be provided with a peristome 808a at axle 808 with the corresponding position of throttle orifice, peristome 808a and valve pocket 810 conductings, like this, when axle 808 is followed the stepper motor rotation, make respectively throttle orifice and valve pocket 810 complete conductings by peristome 808a, velocity of rotation when passing through each throttle orifice by the control step motor, thereby control a plurality of throttle orifice 804a, 804b, the time scale of 804c and valve pocket 810 complete conductings, thus realize described a plurality of throttle orifice 804a, 804b, the distribution of flow between the 804c.
Simultaneously owing to remain with certain gap between axle 808 and valve body 805 inner chambers, so when axle 808 covers throttle orifice, still can there be a certain amount of fluid to pass through from these throttle orifices, have namely guaranteed a basic through-current capacity; If the basic through-current capacity that needs is larger, can make axle 808 slightly larger with the gap of valve body 805, although covered such as Figure 13 axis 808 throttle orifice 803a, 803b, throttle orifice 803a, 803b still can have certain bare flow to pass through from the gap of the inner chamber of axle 808 and valve body.
In order to make axle 808 more flexible when rotating, reduce the wearing and tearing of axle in rotation process, thereby guarantee the service life of electric throttling distributor, can a bearing 812 be set at axle 808 and valve body 805 bottom fixed positions.
The advantage of this embodiment is, after adopting this structure the height of electric throttling distributor profile is reduced, structure is relatively simple, the quantity of throttle orifice will increase easily simultaneously, when coming throttling and dispense flow rate such as 5 throttle orifices of needs, can adopt hexagonal valve body material, wherein a side is used for processing sets up import and entrance sleeve, and all the other 5 sides can't be used for arranging the fixing of processing throttle orifice and corresponding discharge connection.And because stepper motor only need to be with moving axis to rotate, and do not have the friction of other parts such as guiding valve, the power of motor also can be smaller, is easy to realize miniaturization.
In sum, electric throttling distributor of the present invention, can realize that flow quantity intelligent between a plurality of pipelines distributes and finish the purpose of throttling, the refrigerant flow of system is reasonably distributed, heat exchanger or efficiency of heat exchanger are not fully exerted, and avoid between much more original group heat exchangers the mass flow discrepancy wasting problem that weighs, this connection occupation mode is easy simultaneously, connecting line is few, and it is also relatively low that cost is installed and used in manufacturing.
The above only is several embodiment of the present invention; and be not restriction to application of the present invention; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. electric throttling distributor, comprise shell, entrance sleeve, the discharge connection that a plurality of throttle orifices and a plurality of and described throttle orifice are connected and the stepper motor of a driving usefulness and the transmission mechanism that stepper motor drives, be formed with a valve pocket in the described shell, entrance sleeve is connected with described valve pocket, this electric throttling distributor drives the distribution that not stall of transmission mechanism in the valve pocket moves to realize flow between described a plurality of throttle orifice by stepper motor, and the distribution of flow is to realize by the moving time scale of controlling respectively described a plurality of throttle orifice and described valve pocket conducting of not stall of transmission mechanism that described stepper motor drives in the valve pocket between described a plurality of throttle orifices.
2. electric throttling distributor as claimed in claim 1, it is characterized in that described stepper motor comprises described shell outward fixing coil component and the magnetic rotor component corresponding with described coil component magnetic pole in the shell, thereby thereby rotate the distribution that realizes flow between described a plurality of throttle orifices by make magnetic rotor component in the shell rotate the transmission mechanism that drives in the valve pocket to described coil component energising during work.
3. electric throttling distributor as claimed in claim 2 is characterized in that described transmission mechanism and described magnetic rotor component are fixed together, and described magnetic rotor component drives described transmission mechanism when rotating and rotates together.
4. electric throttling distributor as claimed in claim 2, it is characterized in that described magnetic rotor component when work, rotate to realize described a plurality of throttle orifices by one direction between the distribution of flow.
5. electric throttling distributor as claimed in claim 2, it is characterized in that described magnetic rotor component when work by come back rotation realize described a plurality of throttle orifices between the distribution of flow.
6. electric throttling distributor as claimed in claim 1, it is characterized in that described electric throttling distributor also includes one and forms the outer shell base of described valve pocket with described shell, thereby this outer shell base is all or part of to be stretched in the described shell to fix with body seal and forms described valve pocket, perhaps thereby described housing parts stretches into to seal in the described outer shell base to fix and forms described valve pocket, and described a plurality of throttle orifices have at least one to be arranged on the described outer shell base.
7. electric throttling distributor as claimed in claim 6, it is characterized in that described outer shell base is a valve seat, interior fixing with body seal forms described valve pocket thereby this valve seat or part valve seat stretch into described shell, and described a plurality of throttle orifices have at least one to be arranged on the described valve seat.
8. electric throttling distributor as claimed in claim 7 is characterized in that valve seat is being provided with a planar bottom surface near a side in the valve pocket, and described a plurality of throttle orifices have at least on the planar bottom surface that is arranged on described valve seat.
9. such as claim 7 or 8 described electric throttling distributors, it is characterized in that described transmission mechanism also comprises a guiding valve, described guiding valve matches with described valve seat, thereby realizes the distribution to flow between described a plurality of throttle orifices.
10. electric throttling distributor as claimed in claim 6 is characterized in that described outer shell base is a base member, and described a plurality of throttle orifices have at least one to be arranged on the described base member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101813598A CN101738024B (en) | 2008-11-18 | 2008-11-18 | Electrical throttling distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101813598A CN101738024B (en) | 2008-11-18 | 2008-11-18 | Electrical throttling distributor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101738024A CN101738024A (en) | 2010-06-16 |
| CN101738024B true CN101738024B (en) | 2013-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008101813598A Active CN101738024B (en) | 2008-11-18 | 2008-11-18 | Electrical throttling distributor |
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| Country | Link |
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| CN (1) | CN101738024B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528129B (en) * | 2012-07-06 | 2016-01-13 | 美的集团股份有限公司 | The control method of indoor apparatus of air conditioner and air-condition heat exchanger temperature |
| DE102019201015A1 (en) * | 2018-02-07 | 2019-08-08 | Robert Bosch Gmbh | Multiway valve, especially for a vehicle heating / cooling system |
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|---|---|---|---|---|
| CN1188885A (en) * | 1997-01-20 | 1998-07-29 | 三星电子株式会社 | Refrigerant distributor of heat exchanger for air-conditioner |
| US6530230B2 (en) * | 2000-11-09 | 2003-03-11 | Denso Corporation | Accumulator module |
| CN201043622Y (en) * | 2007-03-29 | 2008-04-02 | 浙江三花制冷集团有限公司 | Electric switching valve and refrigerator refrigeration cycle device |
| CN101230928A (en) * | 2007-01-26 | 2008-07-30 | 浙江三花制冷集团有限公司 | Electric switching valve and refrigerator refrigerating cycle device |
| CN101270826A (en) * | 2007-03-19 | 2008-09-24 | 浙江三花制冷集团有限公司 | Electric switching valve |
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2008
- 2008-11-18 CN CN2008101813598A patent/CN101738024B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1188885A (en) * | 1997-01-20 | 1998-07-29 | 三星电子株式会社 | Refrigerant distributor of heat exchanger for air-conditioner |
| US6530230B2 (en) * | 2000-11-09 | 2003-03-11 | Denso Corporation | Accumulator module |
| CN101230928A (en) * | 2007-01-26 | 2008-07-30 | 浙江三花制冷集团有限公司 | Electric switching valve and refrigerator refrigerating cycle device |
| CN101270826A (en) * | 2007-03-19 | 2008-09-24 | 浙江三花制冷集团有限公司 | Electric switching valve |
| CN201043622Y (en) * | 2007-03-29 | 2008-04-02 | 浙江三花制冷集团有限公司 | Electric switching valve and refrigerator refrigeration cycle device |
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| Title |
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| JP特开2008-157588A 2008.07.10 |
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| CN101738024A (en) | 2010-06-16 |
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Address after: 312500 Shaoxing City, Zhejiang province Xinchang Qixing street under the Liquan Patentee after: Zhejiang three flower intelligent control Limited by Share Ltd Address before: 312500 Liquan village of Zhejiang County in Xinchang Province town under Patentee before: Zhejiang Sanhua Group Co., Ltd. |