CN101749896A - Electrically throttling distributor - Google Patents
Electrically throttling distributor Download PDFInfo
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- CN101749896A CN101749896A CN200810183091A CN200810183091A CN101749896A CN 101749896 A CN101749896 A CN 101749896A CN 200810183091 A CN200810183091 A CN 200810183091A CN 200810183091 A CN200810183091 A CN 200810183091A CN 101749896 A CN101749896 A CN 101749896A
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- base member
- throttling
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Abstract
The invention belongs to an electrically throttling distributor for a refrigeration system, in particular to the electrically throttling distributor for an air conditioner system with a plurality of heat exchanger groups. The electrically throttling distributor comprises a shell, a base part, a first adapter pipe, a plurality of throttling orifices and a second adapter pipe which is communicated with the throttling orifices, and also comprises a stepper motor for driving and a drive shaft which is driven by the stepper motor, wherein the shell and the base part form a valve cavity; and the first adapter pipe is communicated with the valve cavity. The electrically throttling distributor realizes the throttling distribution among the plurality of throttling orifices by using the stepper motor to the drive shaft in the valve cavity to rotate; the plurality of throttling orifices are formed on the base part; and a filter part is arranged in a channel between the first adapter pipe and the valve cavity to prevent blockage of the throttling orifices. The electrically throttling distributor can replace a plurality of expansion valves and the distributor which are adopted in the conventional system and has the advantages of small driving power, convenient arrangement and use and low cost.
Description
Technical field
The invention belongs to the electric throttling distributor that a kind of refrigeration system is used, the electric throttling distributor that particularly a kind of air-conditioning system is carried out throttling and distribution before with manifold heat exchanger.
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, make every indoor set assignment of traffic even, thereby improve the efficient of whole air-conditioning system, and system needs a plurality of expansion valves and a distributor like this.
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 system's throttling and dispense flow rate that prior art exists many, the manufacturing cost height, pipeline connects complicated problems, refrigeration system at the multi-group heat exchanger that uses a plurality of heat exchangers or a heat exchanger comprises air-conditioning system and fridge-freezer, provide a kind of at least one first heat exchanger and a plurality of second heat exchanger or organize more and carry out the electric throttling distributor that intelligent flow distributes and finish simultaneously throttling between second heat exchanger, substitute the distributor of a plurality of expansion valves and flow simultaneously, and because the aperture of this throttle orifice is less relatively, for fear of the obstruction of throttle orifice, take in the first passage between first adapter and valve pocket a filter element to be set.For this reason, the present invention is by the following technical solutions:
A kind of electric throttling distributor, comprise shell, base member, at least one first through hole and first adapter that is connected with described first through hole, second adapter that a plurality of throttle orifices and a plurality of and described throttle orifice are connected, the power transmission shaft that stepper motor and stepper motor drove that also comprises a driving usefulness, described stepper motor comprises coil component and the interior magnetic rotor component of shell that described shell is fixing outward, described shell and described base member form a valve pocket, first adapter is connected with described valve pocket, this electric throttling distributor drives power transmission shaft in the valve pocket by stepper motor and rotates the control that realizes throttling flow between described a plurality of throttle orifice and distribute, described first take over or first take over and valve pocket between be provided with a filter element.
Preferably, described filter element is arranged between described first adapter and the described base member.
Preferably, described filter element is arranged on the end position of described first end that stretches into described base member of taking over, and fixes with described base member with described first adapter.
Optionally, described filter element setting is fixed on described first and takes over.
Preferably, described base member comprises a base and a base plate, and described filter element is arranged on the described base member, and is fixed between described base and the base plate.
Preferably, also be provided with second filter element between described a plurality of second adapter or second adapter and the described throttle orifice.
Optionally, described filter element is a screen pack.
Optionally, described filter element is a kind of filter.
Optionally, described filter is that fibrous filtering material is made.
Electric throttling distributor of the present invention is applicable to the throttling of the throttle orifice more than 2 and the control respectively of flow, simultaneously corresponding to the throttling of the refrigeration system that has 2 above heat exchangers or heat exchanger and the control of flow, to the result of use of 3 above throttle orifices and reduce cost more obvious.Electric throttling distributor at a kind of one-way flow, by one group of filter element is set at the import position, electric throttling distributor at a kind of two-way flow is provided with filter element respectively between first adapter and valve pocket, second adapter and throttle orifice, thereby avoid throttle orifice to occur stopping up or local phenomenon of blocking, and guarantee the accuracy of normal operation of system and flow-control.
Description of drawings
Fig. 1: the structural representation of first kind of embodiment of electric throttling distributor of the present invention;
Fig. 2: the structural representation of second kind of embodiment of electric throttling distributor of the present invention;
Fig. 3: the structural representation of the third embodiment of electric throttling distributor of the present invention;
Fig. 4: the structural representation of the 4th kind of embodiment of electric throttling distributor of the present invention;
Fig. 5: the structural representation of the 5th kind of embodiment of electric throttling distributor of the present invention;
Fig. 6: the structural representation of the 6th kind of embodiment of electric throttling distributor of the present invention;
Fig. 7: be the structural representation of seven kinds of embodiments of electric throttling distributor of the present invention;
Fig. 8: the A-A structural representation of electric throttling distributor shown in Figure 7;
Fig. 9: the structural representation of the 8th kind of embodiment of electric throttling distributor of the present invention.
The specific embodiment
Electric throttling distributor of the present invention goes for the throttling of flow of refrigeration system of a plurality of heat exchangers or multi-group heat exchanger and the control of flow, as the system with heat exchanger or heat exchanger more than 2 groups such as domestic air conditioning or fridge-freezer, 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 parallel flow type heat exchangers combination the carrying out heat exchange in parallel of many groups and use to improve the efficient of system.Below in conjunction with accompanying drawing, specify embodiments of the present invention:
As shown in Figure 1, Fig. 1 is the structural representation of first kind of embodiment of electric throttling distributor of the present invention.This electric throttling distributor comprises a shell 709 and a base member, and base member comprises base 714 and base plate 717; Valve pocket 710 of shell 709 and the common formation of base member, the some of base 714 and base plate 717 are fixed on the axial location in the described valve pocket, and base and shell are fixed by welded seal; Shell 709 outer being fixed with as stepper motor stator coil component 711 partly, also be provided with in the shell as partly magnetic rotor component 707 of stepper motor mover, the power transmission shaft 708 that under magnetic rotor component 707 drives, can come back rotation, and the guiding valve 706 that rotates with magnetic rotor component and power transmission shaft, guiding valve 706 is oppositely arranged and is fixed on along on the axial location of magnetic rotor component and power transmission shaft with base plate 717, and power transmission shaft 708 is fixed-type together during by the magnetic rotor component injection mo(u)lding.Base plate 717 is provided with a plurality of throttle orifices on the plane relative with guiding valve, a plurality of throttle orifices such as 702c connect base plate 717 and are connected as 703c with a plurality of second adapters respectively as 704 by throttle orifice passage set on the base 714 respectively, it is less that throttle orifice can be provided with the latus rectum of a chamfering (not shown) and a plurality of throttle orifices, as between 0.6～1.5mm.Base 714 is provided with one first through hole 701a, and is welded with first adapter 701 that is communicated with described first through hole and a plurality of second adapter 703a, the 703b, 703c that is communicated with throttle orifice respectively, and welding can disposablely be finished.Be provided with a flexible member in addition between the back of guiding valve 706 and magnetic rotor component 707, flexible member is a spring in the present embodiment.One end of power transmission shaft 708 is arranged with a keeper and stretches into the recess of cover top portion and position, and keeper adopts anti-cold-producing medium and the good material of greasy property to make, as materials such as polytetrafluoroethylene (PTFE), nylon.The other end of power transmission shaft 708 stretches in the set recess of base member, this electric throttling distributor drives power transmission shaft, guiding valve rotational action by the magnetic rotor component of stepper motor, the axial location of guiding valve is fixed with flexible member and base plate position, when rotating, make a plurality of axial throttle orifice that is provided with on the base plate 717 pass through the conducting portion and valve pocket 710 conductings of guiding valve respectively, thereby realize the distribution and the control of throttling flow between described a plurality of throttle orifice.
When system moves, after the coil component 711 of electric throttling distributor receives corresponding pulse signal, through the break-make between a plurality of phase places, thereby the magnetic pole that changes on the coil component drives 707 rotations of the interior magnetic rotor component of shell, magnetic rotor component drives power transmission shaft 708 again and guiding valve 706 rotates, velocity of rotation when passing through each throttle orifice by the control step motor, or set time inner control stepper motor makes the dead time ratio of the complete conducting of each throttle orifice, thereby the time scale of a plurality of throttle orifices on the control base member and valve pocket 710 conductings, thereby realize distribution and control to throttling flow between described a plurality of throttle orifices, cold-producing medium is assigned to every group of heat exchanger or heat exchanger more respectively or flows into valve pocket from every group of heat exchanger or heat exchanger by throttle orifice after by the throttle orifice throttling of electric throttling distributor, takes over by first and flows out.For guaranteeing the correct phase relation between coil component 711 and the magnetic rotor component 707, also have a locator card locking mechanism to fix (not drawing among the figure) between the two.In order to guarantee the not blocked or local obstruction of the less throttle orifice of latus rectum, between first adapter 701 and valve pocket, a filter element is set, be arranged on the end position of an end that stretches into base 714 of first adapter 701 as filter element in this embodiment, be that filter element is fixed between first adapter 701 and the base 714, take over to compress by first and fix, for fixing more reliable, can also when first adapter 701 is welded with base 714, weld fixing with base 714, first adapter 701.Filter element adopts screen pack 721 in this embodiment; Filter element can also adopt filter in addition, and as the filter made with fibrous filtering material such as nonwoven or the filter of being made by porous material, and all can be used by the filter of stainless steel wire moulding, its occupation mode and principle are all identical.
Fig. 2 is as second embodiment of the present invention, it is a kind of improvement to above-mentioned embodiment, the difference of this embodiment and first embodiment is: stop up when described a plurality of second takes over inflow valve pocket 710 or the local throttle orifice that stops up for fear of fluid in system, on described a plurality of second passage of taking over or taking between the throttle orifice that is connected with this second adapter, also be provided with second filter element 721 ' respectively, filter element 721 ' can adopt screen pack or filter, as filter made from fibrous filtering material or the filter of being made by porous material, reach filter by the stainless steel wire moulding or the like.Filter element can be arranged between the end and base of described a plurality of second end that stretches into base of taking over, as shown in Figure 2, specifically be arranged on the end position of the end that stretches into base of the second adapter 703c, can also be arranged on second in addition and take over upward or be arranged between the throttle orifice position of base and base plate.Like this, when described a plurality of second take over to flow into, the situation of corresponding throttle orifice can not take place to stop up because of some impurity depositions at refrigerant fluid.Other operation principle and the working method of this embodiment are same as described above, no longer repeat here.
Fig. 3 is as the 3rd embodiment of the present invention, the difference of itself and above-mentioned second embodiment is: described first take over and valve pocket between filter element be arranged on first take over and valve pocket between first passage on, be arranged between base 714 and the base plate 717 as Fig. 3, particularly, near this channel position, on the close face of base plate of base or on the face of the close base of base plate a recess that holds filter element is being set, concave depth is slightly less than the thickness of filter element, like this filter element is placed in the recess, and described base plate and base be fixed, thereby guarantee the fixing of filter element.Filter element can adopt the screen pack 721a among screen pack parts such as the figure, in addition the filter that also can make with fibrous filtering material or the filter of making by porous material, and by filter of stainless steel wire moulding or the like.
Fig. 4 is the 4th embodiment of the present invention, the difference of this embodiment and above-mentioned the 3rd embodiment is: described filter element is a screen pack parts 721b, the filtration reticulum that screen pack parts 721b comprises a screen pack and fixes this screen pack and fix with adapter; Screen pack parts 721b is fixed on first and takes on 701, thereby takes over and make first to take over and filter reticulum and fix with screen pack parts 721b is snap-in and fix by pushing first specifically.
Fig. 5 is the 5th embodiment of the present invention, base member described in this embodiment is an integrally formed base member 705, base member 705 and the shell 709 common valve pockets 710 that form, the upper half part of this base member 705 is fixed in the described valve pocket, base member 705 comprises that is used to relative with guiding valve is provided with the plane of a plurality of throttle orifices such as 702c, and another one is a little less than second plane on first plane; The stepper motor of the driving usefulness in this embodiment, comprise equally shell 709 outer fixing as the stepper motor stator partly coil component 711 and shell in as the mover magnetic rotor component 707 relative partly with the coil component magnetic pole; Also being included in the magnetic rotor component drive in addition can come the power transmission shaft 708 of back rotation to reach with magnetic rotor component down, the guiding valve 706 that power transmission shaft rotates together, also be welded with first on the base member 705 and take over 701, a plurality of second takes over 703a, 703b, 703c, 703d, be respectively equipped with on first plane of base member 705 and a plurality ofly take over 703a with second respectively, 703b, 703c, the throttle orifice that 703d is connected (all not drawing among the figure), be fixed with a filter element 721 at first adapter 701 and the end position that base member 705 connects, particularly, filter element is a screen pack.Can avoid described a plurality of throttle orifice to occur stopping up like this or local situation about stopping up, to guarantee the accuracy of throttling assignment of traffic between a plurality of throttle orifices.Drive the resistance of drive link 708 and guiding valve 706 rotations in addition for fear of magnetic rotor component 707, also a bearing 712 is being set between drive link 708 and the base member 705, between drive link 708 and shell 709, is being provided with another bearing 712b, shell is provided with a recess 709a who is used to hold bearing, bearing 712b is fixed among the recess 709a, on base member 705, be provided with a recess, bearing 712 is fixed in the recess that is provided with on the base member 705, and the resistance of the drive of drive link rotation can significantly reduce like this.Thereby realize the purpose of further energy-conservation and electric flow distributor miniaturization.
Fig. 6 is the structural representation of the 6th kind of embodiment of electric throttling distributor of the present invention, the difference of this embodiment and above-mentioned the 5th embodiment is: when being provided with first filter element 721 between first adapter 701 and valve pocket, also be fixed with a filter element respectively, be fixed with screen pack 721 ' as taking between the end of 703c and the throttle orifice 702c second at a plurality of second that end position that connects with base member 705 that take over 703a, 703b, 703c, 703d.This mainly is to be used to prevent when reverse fluid flow, as when heating, will occur when being used for the air-conditioning system of heat pump taking over and flow into from a plurality of second, and the throttle orifice that occurs when first takes over outflow stops up or local situation about stopping up, thereby guarantees the normal operation of the accuracy and the system of throttling assignment of traffic between a plurality of throttle orifices.Other operation principle and the working method of this embodiment are same as described above, repeat no more here.
First adapter of being mentioned among the present invention, second is taken over and is not limited to straight adapter, but the middle pipe fitting that the connection usefulness of through hole is arranged, as being an end belt lacing or two ends various ways such as adapter not of uniform size.Other first take over, second to take over be not to have only one but can be a plurality of yet, taking over as first is 2, the corresponding heat exchanger that is connected with this first adapter also is 2; Second adapter is 3,4 or more, and the heat exchanger that is connected with second adapter also is 3,4 or more like this.Similarly throttle orifice can be 3,2 or 4,5 even more.
In addition, above embodiment in all have a guiding valve, this is not a limitation of the present invention yet, is electric flow distributor below not with the embodiment of guiding valve, this embodiment relatively is suitable for some relatively large systems of flow, and is also more suitable to two-way flow simultaneously.
Fig. 7 is the 7th a kind of embodiment of the present invention, and Fig. 8 then is the A-A partial schematic diagram of Fig. 7.Electric throttling distributor comprises a shell 809, base member 805, base member 805 forms a valve pocket 810 with shell 809 welding, described throttle orifice all is arranged on the circumferential lateral location of base member 805, be provided with 5 throttle orifice 804a, 804b, 804c, 804d, 804e in the present embodiment altogether, throttle orifice is separately positioned on 5 circumferential lateral location of base member 805; With throttle orifice 804a, 804b, 804c, 804d, the second adapter 803a that 804e is communicated with respectively, 803b, 803c, 803d, 803e is weldingly fixed on respectively on the circumferential lateral location of base member 805, housing exterior is fixed with as stepper motor stator solenoid parts 811 partly, be provided with the magnetic rotor component 807 relative in the shell with solenoid parts 811, the magnetic pole of the magnetic pole of solenoid parts 811 and magnetic rotor component 807 is oppositely arranged, solenoid parts 811 constitute stepper motor with magnetic rotor component 807 like this, driving power transmission shaft 808 by magnetic rotor component 807 when coil component is switched on rotates, power transmission shaft 808 wherein is provided with the external diameter of some of throttle orifice position and the internal diameter of base member 805 adapts at base member 805, keep a certain amount of gap that can freely rotate as 0.06～0.20mm, base member 805 also is provided with one first through hole 802 and is welded with first adapter 801 that is connected with first through hole, the inner chamber of base also is provided with a circulation groove 805a who is used for fluid communication at the first through hole position, by circulation groove 805a valve pocket 810 and the 802 complete conductings of first through hole, simultaneously also be provided with a peristome 808a with the corresponding position of throttle orifice at power transmission shaft 808, peristome 808a and valve pocket 810 complete conductings, peristome 808a during over against throttle orifice this throttle orifice by peristome 808a and the complete conducting of valve pocket.In addition, be provided with a recess in the bottom of the inner chamber of base member 805, be provided with a bearing 812a between power transmission shaft 808 and base member 805, bearing 812a is fixed on the recess of base member 805; Also be provided with a recess that is used for fixing bearing 812b at the top of shell 809, also pass through bearing fixing between power transmission shaft 808 and the shell 809; Like this, power transmission shaft 808 just also can rotate by bearing fixing between shell 809 and base member 805 well; Like this, when power transmission shaft 808 is followed the stepper motor rotation, make a plurality of throttle orifices and valve pocket 810 complete conductings respectively respectively by peristome 808a, the dead time ratio that velocity of rotation by the control step motor during by each throttle orifice or set time inner control stepper motor make the complete conducting of each throttle orifice, thereby control a plurality of throttle orifice 804a, 804b, 804c, 804d, the time scale of 804e and valve pocket 810 complete conductings, thus realize described a plurality of throttle orifice 804a, 804b, 804c, 804d, the pro rata control of circulation flow distributes between the 804e.As, when system need strengthen with the flow that second of electric throttling distributor is taken over the heat exchanger that 803a be connected, can make power transmission shaft 808 slow down or the dead time of axle when turning to the complete conducting of the throttle orifice 804a that matches with this second adapter 803a and valve pocket 810 extended turning to velocity of rotation with this second axle when taking over the complete conducting of the corresponding throttle orifice 804a of 803a and valve pocket 810, thereby increase this throttle orifice and time scales valve pocket 810 complete conductings, thereby increase in the certain hour and the flow supply ratio of the cold-producing medium of this throttle orifice corresponding heat exchanger or the ratio of flow circulation.Also be fixed with a filter element 821 between first adapter 801 and base member 805, particularly, filter element 821 is a screen pack, and filter element also can adopt other filtering material such as filter or the like in addition.
In addition, because power transmission shaft 808 remains with certain clearance between the some of base member inner chamber and base member 805 inner chambers, therefore at power transmission shaft 808 throttle orifice is covered and makes under the situation of throttle orifice and valve pocket 810 incomplete conductings, still can there be a certain amount of fluid to pass through, have just guaranteed a basic through-current capacity from these throttle orifices.It is big that basic through-current capacity is if desired wanted, and can make power transmission shaft 808 in the internal diameter gap of the external diameter at throttle orifice position relatively and the inner chamber of this position base member 805 slightly greatly.Therefore this structure is more suitable for the relatively large system of some power system capacities because relative throttle orifice can be provided with greatly, as some commercial fridge-freezers and relatively large air-conditioning system etc.In this in addition embodiment, less to the impact of power transmission shaft when fluid flows into, being more suitable for some needs two-way flow and carries out in the system of two-way control.In addition, power transmission shaft also can adopt combining form, and is not limited to illustrated one form.The working method of electric throttling distributor still is the same with operation principle, therefore repeats no more.
Fig. 9 is the further improvement to above-mentioned the 7th embodiment, the main distinction is to be provided with second filter element 821 ' respectively between a plurality of second adapters and base member 805, as shown in the figure, be to fix one second filter element 821 ' at second end position of taking over, fixed form can adopt second take over and base member 805 between crimping fix or in crimping, weld fixing again.Second filter element 821 ' can adopt screen pack, but preferably adopt the partly filter of silencing function of band, filter of making as porous material or fibrous material or the like, as the filter that can adopt nonwoven to make, the mobile noise in the time of can reducing throttling like this.
In sum, electric throttling distributor of the present invention, can realize controlling between a plurality of pipelines the purpose that flow quantity intelligent distributes and finish throttling, can make the refrigerant flow of system reasonably be controlled distribution like this, 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, can substitute a plurality of expansion valves and the distributor that use in the previous system, easy to install, manufacturing cost is lower.And by take over and valve pocket between filter element is set, thereby can avoid the obstruction of throttle orifice or local the obstruction influences the correct problem of distributing of throttling flow, thereby the correctness of assurance assignment of traffic and the normal operation of system.
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, base member, at least one first through hole and first adapter that is connected with described first through hole, second adapter that a plurality of throttle orifices and a plurality of and described throttle orifice are connected, the power transmission shaft that stepper motor and stepper motor drove that also comprises a driving usefulness, described stepper motor comprises coil component and the interior magnetic rotor component of shell that described shell is fixing outward, described shell and described base member form a valve pocket, first adapter is connected with described valve pocket, this electric throttling distributor drives power transmission shaft in the valve pocket by stepper motor and rotates the control that realizes throttling flow between described a plurality of throttle orifice and distribute, it is characterized in that described first take over or first take over and valve pocket between be provided with a filter element.
2. electric throttling distributor as claimed in claim 1 is characterized in that, described filter element is arranged between described first adapter and the described base member.
3. electric throttling distributor as claimed in claim 2 is characterized in that described filter element is arranged on the end position of described first end that stretches into described base member of taking over, and fixes with described base member with described first adapter.
4. electric throttling distributor as claimed in claim 1 is characterized in that described filter element setting is fixed on described first and takes over.
5. electric throttling distributor as claimed in claim 1 is characterized in that described base member comprises a base and a base plate, and described filter element is arranged on the described base member, and is fixed between described base and the base plate.
6. electric throttling distributor as claimed in claim 1 is characterized in that also being provided with second filter element between described a plurality of second adapter or second adapter and the described throttle orifice.
7. as each described electric throttling distributor of claim 1～6, it is characterized in that described filter element is a screen pack.
8. as each described electric throttling distributor of claim 1～6, it is characterized in that described filter element is a kind of filter.
9. electric throttling distributor as claimed in claim 8 is characterized in that described filter is that fibrous filtering material is made.
10. electric throttling distributor as claimed in claim 1 is characterized in that described throttle orifice is more than 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810183091A CN101749896A (en) | 2008-12-04 | 2008-12-04 | Electrically throttling distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810183091A CN101749896A (en) | 2008-12-04 | 2008-12-04 | Electrically throttling distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101749896A true CN101749896A (en) | 2010-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810183091A Pending CN101749896A (en) | 2008-12-04 | 2008-12-04 | Electrically throttling distributor |
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| CN (1) | CN101749896A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641333A (en) * | 2015-10-29 | 2017-05-10 | 浙江盾安禾田金属有限公司 | Electromagnetic pilot-operated type three-way valve and air conditioner system |
| CN108799534A (en) * | 2017-04-28 | 2018-11-13 | 浙江三花智能控制股份有限公司 | Valve gear |
| CN110375081A (en) * | 2018-04-13 | 2019-10-25 | 浙江三花智能控制股份有限公司 | Valve gear and its valve block |
| CN110822130A (en) * | 2018-08-07 | 2020-02-21 | 浙江三花智能控制股份有限公司 | Electric switching valve and valve block thereof |
| CN111379883A (en) * | 2018-12-31 | 2020-07-07 | 浙江三花智能控制股份有限公司 | Electric switching valve |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1375650A (en) * | 2001-03-16 | 2002-10-23 | 太平洋工业株式会社 | Control valve |
-
2008
- 2008-12-04 CN CN200810183091A patent/CN101749896A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1375650A (en) * | 2001-03-16 | 2002-10-23 | 太平洋工业株式会社 | Control valve |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641333A (en) * | 2015-10-29 | 2017-05-10 | 浙江盾安禾田金属有限公司 | Electromagnetic pilot-operated type three-way valve and air conditioner system |
| CN106641333B (en) * | 2015-10-29 | 2019-09-13 | 浙江盾安禾田金属有限公司 | A kind of electromagnetic pilot-operated triple valve and air-conditioning system |
| CN108799534A (en) * | 2017-04-28 | 2018-11-13 | 浙江三花智能控制股份有限公司 | Valve gear |
| CN108799534B (en) * | 2017-04-28 | 2019-09-27 | 浙江三花智能控制股份有限公司 | Valve gear |
| CN110375081A (en) * | 2018-04-13 | 2019-10-25 | 浙江三花智能控制股份有限公司 | Valve gear and its valve block |
| CN110822130A (en) * | 2018-08-07 | 2020-02-21 | 浙江三花智能控制股份有限公司 | Electric switching valve and valve block thereof |
| CN111379883A (en) * | 2018-12-31 | 2020-07-07 | 浙江三花智能控制股份有限公司 | Electric switching valve |
| CN111379883B (en) * | 2018-12-31 | 2024-04-12 | 浙江三花智能控制股份有限公司 | Electric switching valve |
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Application publication date: 20100623 |