CN101762123B - Electric flow distributor - Google Patents
Electric flow distributor Download PDFInfo
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- CN101762123B CN101762123B CN 200810177728 CN200810177728A CN101762123B CN 101762123 B CN101762123 B CN 101762123B CN 200810177728 CN200810177728 CN 200810177728 CN 200810177728 A CN200810177728 A CN 200810177728A CN 101762123 B CN101762123 B CN 101762123B
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Abstract
The invention belongs to an electric flow distributor for a refrigerating system, in particular to an electric flow distributor for an air conditioner system. The electric flow distributor in prior art has the defects of more components, high manufacture cost and complicated pipeline connection. The electric flow distributor is provided with a basic flow distribution part and a variable flow distribution part to ensure each outlet connecting pipe of the electric flow distributor to realize basic flow and intelligent flow distribution simultaneously, therefore the number of system components with the same function is reduced; the flow distribution between the heat-exchanging units or groups of heat exchangers is uniform, each heat-exchanging or each group of heat exchangers can fully perform the heat exchange function, and the waste of heat exchange area is reduced, thereby improving the efficiency of the system; meanwhile, the system has simple manufacturing, basically needs no additional component, and has lower manufacturing cost.
Description
Technical field
The invention belongs to the electric flow distributor that a kind of refrigeration system is used, the electric flow distributor that particularly a kind of air-conditioning system is used.
Background technology
Air-conditioning system of the prior art mostly comprises 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 like the application number of on November 29th, 2006 application disclosed scheme in 200610145015.2 the application for a patent for invention Publication Specification; Just adopt and all transfer valve module to be used for the electric expansion valve that intelligence is regulated said each indoor set, thereby realize that one drags the distribution according to need of many air conditioner coolant flow quantities through a control to each indoor set.Be the 02137580.1 disclosed scheme of patent of invention specification announced and for example on October 23rd, 2002 application and the application number of authorizing on September 26th, 2007; It also is the flow that controls to the refrigerant of each indoor set through the controller enforcement of controlling each indoor set respectively separately; Thereby accomplish the assignment of traffic of multi-split air conditioner; And regulate the open degree and the refrigerant flow of electric expansion valve automatically, 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 through above-mentioned control mode; The flow of each indoor set can be realized control separately; Service precision is higher; But using parts more relatively, is that each indoor set of disclosed scheme all disposes an electric expansion valve separately and valve module is transferred in a control in 200610145015.2 the application for a patent for invention Publication Specification like the application number of on November 29th, 2006 application.Number of components is many like this, and manufacturing cost is very high, the pipeline complex connection, and simultaneously because the quantity of control circuit and valve is corresponding increases, its rate of breakdown also maybe corresponding increasing.The application number of authorizing on September 26th, 2007 is to have same problem too in the 02137580.1 patent of invention specification announced.
Summary of the invention
The technical problem that the present invention will solve and the technical assignment of proposition are that to overcome the number of components that prior art exists many; Manufacturing cost is high; The problem of pipeline complex connection; Refrigeration system to the multi-group heat exchanger that uses a plurality of heat exchangers or a heat exchanger comprises air-conditioning system; Provide a kind of multi-group heat exchanger at a plurality of heat exchangers or a heat exchanger to carry out the electric flow distributor that intelligent flow distributes, this electric flow distributor carries out smart allocation to the flow of discharge connection when guaranteeing that a kind of bare flow distributes.
For this reason, the present invention adopts following technical scheme:
A kind of electric flow distributor; Comprise shell, import and the entrance sleeve that is communicated with import, a plurality of discharge connection; The drive link that stepper motor and stepper motor drove with a driving usefulness; Be formed with a valve pocket in the said shell; Import is connected with said valve pocket, and this electric flow distributor comprises a bare flow dispenser and a changeable flow dispenser, thereby said changeable flow dispenser is to drive through stepper motor to rotate the distribution that realizes flow between described a plurality of outlet.
Preferably, the said bare flow distribution portion flow proportional that is fitted on discharge connection keeps stable.
Preferably, the normal open outlet of described bare flow dispenser for being connected with said valve pocket, said normal open outlet is communicated with respectively with said discharge connection.
Preferably, described changeable flow dispenser comprises a plurality of outlets that are provided with on a valve seat and the valve seat, and the outlet on the relative valve seat can rotate, realize outlet is carried out the guiding valve of assignment of traffic, and said outlet is communicated with respectively with said discharge connection.
Preferably, thus the drive link that described guiding valve drives through described stepper motor drives and rotates the distribution that realizes the flow of said a plurality of outlets.
Preferably, described valve seat is provided with a tabular surface, and described a plurality of outlets are arranged on the described tabular surface.
Preferably, a plurality of outlets that are provided with on the described valve seat also are provided with chamfering.
Preferably; Be that described changeable flow dispenser comprises a plurality of outlets that are provided with on a valve seat and the valve seat; And the guiding valve of assignment of traffic can be rotated, realized outlet is carried out to the outlet on the relative valve seat; Described normal open outlet and an outlet are communicated with a described discharge connection simultaneously, export and be somebody's turn to do the flow sum of outlet for this normal open through the flow of this discharge connection.
Optional, described discharge connection is more than 3.
The present invention is provided with a bare flow dispenser through on electric flow distributor, and a changeable flow dispenser also is set simultaneously; Make electric flow distributor on guaranteeing each discharge connection, carry out the smart allocation of flow in a bare flow, thereby reduce the parts of the system under the 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 overall system efficiency, the simultaneity factor manufacturing is simple; Basically need not increase other parts, manufacturing cost is lower.
Description of drawings
Fig. 1: the structural representation of first kind of embodiment of electric flow distributor of the present invention;
Fig. 2: the partial schematic diagram of the valve seat of electric flow distributor shown in Figure 1 and a kind of structure of guiding valve;
Fig. 3: the partial schematic diagram of the another kind of structure of the valve seat of electric flow distributor of the present invention and guiding valve;
Fig. 4: the partial schematic diagram of the another kind of structure of the valve seat of electric flow distributor of the present invention and guiding valve;
Fig. 5: the partial schematic diagram of the another kind of structure of the valve seat of electric flow distributor of the present invention and guiding valve;
Fig. 6: the contour structures sketch map of second kind of embodiment of electric flow distributor of the present invention;
Fig. 7: the partial schematic diagram at the valve seat of electric flow distributor shown in Figure 6 and guiding valve position;
Fig. 8: the structural representation of the third embodiment of electric flow distributor of the present invention;
Fig. 9: electric flow distributor shown in Figure 8 valve seat and the partial schematic diagram at guiding valve position;
Figure 10: the structural representation of the 4th kind of embodiment of electric flow distributor of the present invention;
Figure 11: the structural representation of the 4th kind of embodiment of electric flow distributor of the present invention;
Figure 12: electric flow distributor shown in Figure 11 valve seat and the partial schematic diagram at guiding valve position;
Figure 13: the structural representation of the 5th kind of embodiment of electric flow distributor of the present invention;
Figure 14: the A of the electric flow distributor among Figure 13-A partial structurtes sketch map.
The specific embodiment
Electric flow distributor of the present invention goes for the distribution of flow of the refrigeration system of a plurality of heat exchangers or multi-group heat exchanger; Like 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 to improving in the system that systematic energy efficiency ratio adopts multi-group heat exchanger combination carrying out heat exchange and use.Below in conjunction with accompanying drawing, specify embodiment of the present invention:
As shown in Figure 1, Fig. 1 is the structural representation of first kind of embodiment of electric flow distributor of the present invention.Fig. 2 is the partial structurtes sketch map at electric flow distributor valve seat shown in Figure 1 and guiding valve position.Electric flow distributor comprises a shell 709; A valve seat 705; The first half of this valve seat 705 is fixed in the said shell 709; Valve seat 705 is provided with an import 702 and entrance sleeve 701, three outlet 704a, 704b, 704c; Thereby valve seat 705 is fixed through welded seal with shell 709 and is formed a valve pocket 710 jointly, and valve pocket 710 is connected with entrance sleeve 701 through import 702, and valve seat 705 is being provided with a planar bottom surface 705a near the first half in the valve pocket 710; Described three outlet 704a, 704b, 704c are arranged on the planar bottom surface 705a of valve seat 705, and three outlet 704a, 704b, 704c are provided with chamfering (not drawing among the figure).In addition, on said valve seat, also be respectively equipped with three normal open outlet 713a, 713b, 713c, normal open outlet 713a, 713b, 713c are communicated with discharge connection 703a, 703b, 703c with three outlet 704a, 704b, 704c respectively simultaneously.The entrance sleeve of being mentioned among the present invention, discharge connection are not limited to straight adapter, and can be an end belt lacing or two ends various ways such as adapter not of uniform size, the promptly middle pipe fitting that the connection usefulness of through hole is arranged.Like this; Flow through electric flow distributor just is divided into two parts; Some is the bare flow through normal open outlet 713a, 713b, 713c; This some just constitutes the bare flow dispenser of this electric flow distributor, and the allocation proportion of this a part of flow just depends on the size of the latus rectum of normal open outlet 713a, 713b, 713c; And some is exactly the dispense flow rate through outlet 704a, 704b, 704c in addition; This some just constitutes the changeable flow dispenser with guiding valve, and the allocation proportion of this a part of flow depends on outlet 704a, 704b, the latus rectum of 704c and the time scale that guiding valve will export 704a, 704b, 704c conducting.
With magnetic rotor component 707 is fixed together drive link 708 arranged; Drive link 708 fixedly moulding together during through the magnet rotor injection mo(u)lding; The bottom of drive link 708 is provided with and is fixed with guiding valve 706; Guiding valve 706 is provided with a breach, is used for the location with the fixing drive bar (figure does not mark) of magnetic rotor component 707.When electric flow distributor moves; The coil component 711 of electric flow 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 not stalls in the drive shell are moving; Magnetic rotor component 707 drives drive link 708 again and guiding valve 706 constantly rotates, thus the time scale of a plurality of outlet 704a, 704b, 704c and valve pocket 710 conductings on the control valve seat, thus realize distribution to flow between described a plurality of outlet 704a, 704b, the 704c.For example; When the higher degree of superheat like outlet of outlet temperature of heat exchanger that is communicated with outlet 704a or heat exchanger reaches more than 5 ℃; At this moment system just sends the ratio that signal increases the assignment of traffic of outlet 704a; The flow of the heat exchanger that is communicated with outlet 704a like this or the cold-producing medium of heat exchanger has just strengthened; Thereby the outlet temperature that can make this heat exchanger or heat exchanger reduces as the degree of superheat of outlet is reduced to about 1 ℃, and this heat exchanger or efficiency of heat exchanger just can correspondingly improve like this.
The bare flow that just is respectively normal open outlet 713a, 713b, 713c from the top said flow that can find out that discharge connection 703a, 703b, 703c circulate adds three electronic dispense flow rate that export 704a, 704b, 704c respectively; When flow distributes between three outlets 704a, 704b, 704c, promptly be distribution to the last flow of three discharge connection 703a, 703b, 703c.
During concrete the rotation; The rotation of clockwise or counterclockwise not constant speed can rotated as carry out continuously to magnetic rotor component continuously to a direction; Particularly; Speed when the flow of each outlet 704a, 704b, 704c just depends on when latus rectum and the guiding valve 706 of each outlet 704a, 704b, 704c rotate through this outlet; If the velocity of rotation when guiding valve passes through outlet 704a conducting is slower, the time of then correspondingly passing through this conducting that exports 704a is corresponding longer, and is just corresponding higher through flow proportional of this outlet 704a; Likewise, if the velocity of rotation of guiding valve during through outlet 704a conducting is very fast, then correspondingly the time of the conducting through this outlet 704a is corresponding shorter, and is just corresponding lower through flow proportional of this outlet 704a; The situation of other several exits also is the same, just no longer repeats here.
A kind of in addition working method is such; Be provided with a stop mechanism (not drawing among the figure) between magnetic rotor component 707 or transmission mechanism 708 and the valve seat 705; Particularly; Be that a stop rod is set on magnetic rotor component 707 or transmission mechanism 708, correspondingly on valve seat 705, be provided with one with stop rod scotch accordingly; During concrete the rotation; Magnetic rotor component 707 forward to this correspondingly during the position stop rod run into scotch and just no longer rotate; But transfer counter-rotation to; Magnetic rotor component 707 is exactly continuously back and forth to rotate during so concrete work; Through the corresponding time scale of control, just can realize that electric flow distributor exports the distribution of the flow of 704a, 704b, 704c to each, likewise through each outlet 704a of guiding valve 706 conductings, 704b, 704c; Speed when the flow of each outlet 704a, 704b, 704c just depends on when latus rectum and the guiding valve of each outlet 704a, 704b, 704c rotate through this outlet; If the velocity of rotation when guiding valve passes through outlet 704a conducting is slower, the time of then correspondingly passing through this conducting that exports 704a is corresponding longer, and is just corresponding higher through flow proportional of this outlet 704a; Likewise; If the velocity of rotation when guiding valve passes through outlet 704a conducting is very fast; The time of then correspondingly passing through this conducting that exports 704a is corresponding shorter; Flow proportional through this outlet 704a is just corresponding lower, and at this moment the allocation proportion of correspondingly corresponding with outlet 704a discharge connection 703a flow is also just lower.
Top Fig. 2 a kind of partial structurtes sketch map at valve seat and guiding valve position that drawn.Fig. 3 then is a kind of partial structurtes sketch map that other a kind of valve seat cooperates with the guiding valve position; Among Fig. 3, that said guiding valve is used to control the outlet conducting is a via 706a, and no longer is a notch part among Fig. 2; Such advantage is relatively to be suitable for the less relatively situation of dispense flow rate; All pass through normal open outlet circulation at the most flow of system, at this moment use the time of this flow via conducting to control more easily, help improving the precision of assignment of traffic.
Fig. 4 then is a kind of partial structurtes sketch map that other a kind of valve seat cooperates with the guiding valve position; Among Fig. 4, said guiding valve is provided with the through-hole section 706b of an annular, and through-hole section 706b can be with the outlet of the part on relative valve seat conducting; Other outlet is then covered by guiding valve; As shown in Figure 4, through-hole section 706b can will export 704a, 704c conducting, covers and will export 704b.Be to adopt to require the form of a less port closing to carry out the distribution of flow the through-current capacity demand between the outlet on said guiding valve and the valve seat; If the heat exchanger that is connected with discharge connection 703a or the outlet temperature of heat exchanger are on the low side; At this moment electric flow distributor just will to export time of not conducting of 704a accordingly longer relatively with the 703a discharge connection after the system feedback signal; Speed during position when making not conducting of 704a through outlet 704a when guiding valve is rotated is slow relatively; Like this, the flow that is assigned to of outlet 704a just lacks relatively.Be exactly in addition when guiding valve is rotated to no longer conducting of outlet 704a, but dispense flow rate is distributed between outlet 704b, 704c, thereby realizes purpose the distribution of the last flow of three discharge connection 703a, 703b, 703c.This mainly is in order to satisfy the difference control requirement of different system.
Fig. 5 is a kind of partial structurtes sketch map that other a kind of valve seat cooperates with the guiding valve position; The mode that the difference of Fig. 5 and above-mentioned embodiment drives when being transmission is different; Guiding valve all has a notch part that is used to drive in the above-mentioned embodiment, and is that an obstructed driving hole 706d is set on guiding valve in this embodiment, and the transmission rod be fixed with among the driving hole 706d that an other end is fixed on this guiding valve correspondingly also is set on drive link; Like this; When electric flow distributor moved, the coil component 711 of electric flow distributor received 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 not stalls in the drive shell are moving; Magnetic rotor component drives drive link again, and drive link drives the guiding valve 706 that the transmission rod reaches and the transmission rod is fixed together and constantly rotates, thus the time scales of a plurality of outlet 704a, 704b, 704c and valve pocket 710 conductings on the control valve seat; Thereby realize distribution, promptly realize the purpose of the distribution of the flow that three discharge connection 703a, 703b, 703c are last flow between described a plurality of outlet 704a, 704b, the 704c.
Second kind of embodiment of electric flow distributor of the present invention is described below in conjunction with Fig. 6 and Fig. 7; Fig. 6 is the contour structures sketch map of this embodiment; Fig. 7 is the valve seat of this electric flow distributor and the structural representation at guiding valve position; As shown in the figure; This electric flow distributor has 6 discharge connection 703a, 703b, 703c, 703d, 703e, 703f; Correspondingly outlet also is 6: 704a, 704b, 704c, 704d, 704e, 704f also are provided with a normal open outlet on each outlet next door simultaneously: 713 ' a, 713 ' b, 713 ' c, 713 ' d, 713 ' e, 713 ' f, each outlet is connected with a discharge connection with a normal open outlet simultaneously.Under this embodiment; Normal open outlet: 713 ' a, 713 ' b, 713 ' c, 713 ' d, 713 ' e, this some of 713 ' f just constitute the bare flow dispenser of this electric flow distributor, and the allocation proportion of this a part of flow just depends on the size of normal open outlet 713 ' a, 713 ' b, 713 ' c, 713 ' d, 713 ' e, 713 ' latus rectum; And some is exactly the dispense flow rate through outlet 704a, 704b, 704c, 704d, 704e, 704f in addition; This some just constitutes the changeable flow dispenser with guiding valve, and the allocation proportion of this a part of flow depends on outlet 704a, 704b, 704c, 704d, 704e, the latus rectum of 704f and the time scale that guiding valve will export 704a, 704b, 704c, 704d, 704e, 704f conducting.This electric flow distributor is applicable in air-conditioning that indoor heat converter is more or the refrigeration system and uses that likewise, outlet can change according to the needs of system with the quantity of discharge connection, rather than is confined to above-mentioned described several kinds of modes.
Fig. 8 is the further improvement to above-mentioned embodiment, and Fig. 9 is the structural representation at valve seat and guiding valve position among Fig. 8.As shown in the figure; In this embodiment, valve seat is divided into two step-like parts, and wherein valve seat top is littler than the bottom; Be processed with outlet 704a, 704b, 704c on the planar bottom surface on top; Side by side the bottom of valve seat is processed with normal open outlet 713a, 713b, 713c, and correspondingly, outlet 704c is connected with discharge connection 703c with normal open outlet 713c.Normal open outlet 713a, 713b, this some of 713c just constitute the bare flow dispenser of this electric flow distributor, and the allocation proportion of this a part of flow has size with regard to the latus rectum that depends on normal open outlet 713a, 713b, 713c; And some is exactly the dispense flow rate through outlet 704a, 704b, 704c in addition; This some just constitutes the changeable flow dispenser with guiding valve, and the allocation proportion of this a part of flow depends on outlet 704a, 704b, the latus rectum of 704c and the time scale that guiding valve will export 704a, 704b, 704c conducting.Correspondingly, said shell also is set to two step-like parts, and in this embodiment, the upper dimension of valve seat can reduce, and correspondingly guiding valve and magnetic rotor component all can reduce, thereby help realizing miniaturization, reduce the use amount of material.Other operation principle and working method all with above described embodiment identical, just no longer repeat here.
In addition, the entrance sleeve of said electric flow distributor is not limited to be connected the below of said electric flow distributor, and is shown in figure 10; Entrance sleeve can be connected the peripheral side of shell; Also be not limited to and be connected on the said valve seat, entrance sleeve can also directly be connected on the shell, and is corresponding more proper in outlet like this; Can fully improve the utilization rate of valve seat, the reliability in the time of can bringing certain difficulty of processing like welding otherwise outlet and import are set together.Others are all identical with above-mentioned embodiment, no longer repeat here.
Simultaneously, electric flow distributor has all adopted and the normal open hole has been set as the requirement that guarantees the electric flow distributor bare flow in the above-mentioned embodiment, and electric flow distributor can also adopt alternate manner to guarantee the bare flow of its distribution.Figure 11 is the structural representation of the 4th kind of embodiment of electric flow distributor of the present invention, Figure 12 be electric flow distributor shown in Figure 11 valve seat and the partial schematic diagram at guiding valve position.As shown in the figure; In this embodiment; Electric flow distributor has an import 702, three outlet 704a, 704b, 704c, shell 709, valve seat 705 and valve seat 705 and the shell 709 common valve pockets 710 that form; Valve pocket 710 is taken over 701 through import 702 and input and is connected; The first half of valve seat 705 is fixed in the said valve pocket, and valve seat 705 is being provided with a planar bottom surface 705a near the first half in the valve pocket 710, and described three outlet 704a, 704b, 704c are arranged on the planar bottom surface 705a of valve seat 705.In addition, on planar bottom surface 705a, also be provided with a recess 712 that connects three outlet 704a, 704b, 704c, the degree of depth of recess 712 decides according to the size of the needed bare flow of system.Like this under the situation that guiding valve covers said outlet; Outlet is some flow that circulates from recess 712 also; Shown in figure 12, though outlet 704a, 704b are covered by guiding valve 706, but still some cold-producing medium can flow to outlet 704a, 704b through recess 712.Recess 712 and the outlet 704a that is communicated with recess 712,704b, this some of 704c just constitute the bare flow dispenser of this electric flow distributor, and the allocation proportion of this a part of flow just depends on size and the degree of depth of recess 712 of the latus rectum of normal open outlet 713a, 713b, 713c; And some is exactly the dispense flow rate through outlet 704a, 704b, 704c in addition; This some just constitutes the changeable flow dispenser with guiding valve, and the allocation proportion of this a part of flow depends on outlet 704a, 704b, the latus rectum of 704c and the time scale that guiding valve will export 704a, 704b, 704c conducting.So both guaranteed the needed bare flow of system, and made 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 suffered pressure of guiding valve will be smaller simultaneously; Likewise, magnetic rotor component drives the power that guiding valve rotates required consumption also can be less, and this embodiment is easy to process; Manufacturing procedure is less, thereby helps reducing manufacturing cost.
Introduce the 5th kind of embodiment of the present invention below, Figure 13 is the structural representation of the 5th kind of embodiment of electric flow distributor of the present invention, and Figure 14 is the A-A partial structurtes sketch map of the electric flow distributor among Figure 13.In this embodiment, electric flow distributor comprises a shell 809, with the valve body 805 of a valve pocket 810 of shell 809 welding formation; Said outlet all is arranged on radially position of valve body 805; In this embodiment, be provided with three outlet 804a, 804b, 804c altogether, with discharge connection 803a, 803b, 803c that outlet 804a, 804b, 804c are communicated with, housing exterior is fixed with solenoid parts 811; Be provided with the magnetic rotor component 807 relative in the shell with solenoid parts 811; Solenoid parts 811 and magnetic rotor component 807 constitute stepper motors and drive axle 808 and rotate, and the external diameter of the some of axle 808 valve body 805 in adapts with the internal diameter of valve body 805, keep that a certain amount of ability freely rotated and to exporting 804a, 804b, 804c the gap of certain bare flow are provided; Like 0.10～0.25mm; The entrance sleeve that valve body 805 also is provided with an import 802 and is connected with import, the inner chamber of valve body also be provided with at the import position one be used for fluid communication holding tank 805a, through holding tank 805a valve pocket 810 and import 802 complete conductings; While also is provided with a peristome 808a axle 808 with the corresponding position of outlet; Peristome 808a and valve pocket 810 conductings, like this, when axle 808 is followed the stepper motor rotation; Make outlet and valve pocket 810 complete conductings respectively through peristome 808a; Through the velocity of rotation of control step motor, thereby control the time scale of a plurality of outlet 804a, 804b, 804c and valve pocket 810 conductings, thereby realize distribution flow between described a plurality of 804a of outlet, 804b, the 804c through each when outlet.
Owing to remain with certain clearance between axle and valve body 805 inner chambers, therefore when axle covers outlet, still can there be a certain amount of fluid to pass through simultaneously, have just guaranteed a basic through-current capacity from these outlets.It is big that basic through-current capacity is if desired wanted, and can make axle 808 big slightly with the gap of valve body 805.
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 flow distributor, can a bearing 812 be set at axle 808 and valve body 805 bottom fixed positions.
Like this; Flow through electric flow distributor just is divided into two parts; Some is through the bare flow of the gap between the internal diameter of the external diameter of axle 808 and valve body 805 with outlet 804a, 804b, 804c; Gap between the internal diameter of axle 808 external diameter and valve body 805 and outlet 804a, 804b, this some of 804c just constitute the bare flow dispenser of this electric flow distributor, the gap between the external diameter that the allocation proportion of this a part of flow just depends on axle 808 and the internal diameter of valve body 805 and export the size of the latus rectum of 804a, 804b, 804c; And some is exactly the dispense flow rate through outlet 804a, 804b, 804c in addition; Axle 808 just constitutes the changeable flow dispenser with outlet 804a, 804b, this some of 804c, and the allocation proportion of this a part of flow depends on the latus rectum of outlet 804a, 804b, 804c and the time scale that axle 808 will export 804a, 804b, 804c conducting.
The advantage of this embodiment is, can make the electric flow distributor profile less after adopting this structure, and is highly lower; Structure is simple relatively; The quantity of outlet will increase easily simultaneously, and because stepper motor only need drive the axle rotation, 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 flow distributor of the present invention can be realized the purpose that flow quantity intelligent distributes between a plurality of pipelines; 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; Adopt the assignment of traffic mode of this maintenance bare flow simultaneously, member profile is reduced, reduce the driving power of stepper motor; It is easy to use to adopt this electric flow distributor to connect; Do not need many circuits to connect, connecting line is few like this, and it is also relatively low that cost is installed and used in manufacturing.
The above only is several kinds of embodiments of the present invention; And be not the restriction to application of the present invention; Should be pointed out 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 improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (9)
1. electric flow distributor; Comprise shell, import and the entrance sleeve that is communicated with import, a plurality of outlet and the discharge connection that is communicated with said a plurality of outlets; The drive link that stepper motor and stepper motor drove with a driving usefulness; Be formed with a valve pocket in the said shell; Import is connected with said valve pocket, and this electric flow distributor comprises a bare flow dispenser and a changeable flow dispenser, thereby said changeable flow dispenser is to drive through stepper motor to rotate the distribution that realizes flow between described a plurality of outlet.
2. electric flow distributor as claimed in claim 1 is characterized in that the flow proportional that said bare flow distribution portion is fitted on discharge connection keeps stable.
3. electric flow distributor as claimed in claim 2 is characterized in that the normal open outlet of described bare flow dispenser for being connected with said valve pocket, and said normal open outlet is communicated with respectively with said discharge connection.
4. electric flow distributor as claimed in claim 1; It is characterized in that described changeable flow dispenser comprises a plurality of outlets that are provided with on a valve seat and the valve seat; And the outlet on the relative valve seat can rotate, realize outlet is carried out the guiding valve of assignment of traffic, and said outlet is communicated with respectively with said discharge connection.
5. electric flow distributor as claimed in claim 4, thus it is characterized in that the drive link that described guiding valve drives through described stepper motor drives the distribution of rotation realization to the flow of said a plurality of outlets.
6. electric flow distributor as claimed in claim 4 is characterized in that described valve seat is provided with a tabular surface, and described a plurality of outlets are arranged on the described tabular surface.
7. electric flow distributor as claimed in claim 6 is characterized in that a plurality of outlets that are provided with on the described valve seat are provided with chamfering.
8. electric flow distributor as claimed in claim 3; It is characterized in that described changeable flow dispenser comprises a plurality of outlets that are provided with on a valve seat and the valve seat; And the guiding valve of assignment of traffic can be rotated, realized outlet is carried out to the outlet on the relative valve seat; Described normal open outlet and an outlet are communicated with a described discharge connection simultaneously, export and be somebody's turn to do the flow sum of outlet for this normal open through the flow of this discharge connection.
9. like each described electric flow distributor of claim 1～8, it is characterized in that described discharge connection is more than 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810177728 CN101762123B (en) | 2008-11-12 | 2008-11-12 | Electric flow distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810177728 CN101762123B (en) | 2008-11-12 | 2008-11-12 | Electric flow distributor |
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| CN101762123A CN101762123A (en) | 2010-06-30 |
| CN101762123B true CN101762123B (en) | 2012-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200810177728 Active CN101762123B (en) | 2008-11-12 | 2008-11-12 | Electric flow distributor |
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| US6591619B2 (en) * | 2000-08-11 | 2003-07-15 | Kabushiki Kaisha Saginomiya Seisakusho | Motor-operated selector valve and refrigerating cycle device for refrigerator-freezer |
| CN1971111A (en) * | 2005-11-25 | 2007-05-30 | 浙江三花制冷集团有限公司 | Electric switch valve and refrigerating cycle for freezing refrigerator |
| CN100360844C (en) * | 2003-02-14 | 2008-01-09 | 株式会社鹭宫制作所 | Electrically operated switch-over valve |
| US7437888B2 (en) * | 2005-10-17 | 2008-10-21 | Samsung Electronics Co., Ltd. | Refrigerator |
-
2008
- 2008-11-12 CN CN 200810177728 patent/CN101762123B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6591619B2 (en) * | 2000-08-11 | 2003-07-15 | Kabushiki Kaisha Saginomiya Seisakusho | Motor-operated selector valve and refrigerating cycle device for refrigerator-freezer |
| CN1375650A (en) * | 2001-03-16 | 2002-10-23 | 太平洋工业株式会社 | Control valve |
| CN100360844C (en) * | 2003-02-14 | 2008-01-09 | 株式会社鹭宫制作所 | Electrically operated switch-over valve |
| US7437888B2 (en) * | 2005-10-17 | 2008-10-21 | Samsung Electronics Co., Ltd. | Refrigerator |
| CN1971111A (en) * | 2005-11-25 | 2007-05-30 | 浙江三花制冷集团有限公司 | Electric switch valve and refrigerating cycle for freezing refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101762123A (en) | 2010-06-30 |
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