CN101762125A

CN101762125A - Electric throttling distribution mechanism, air conditioner system and flow control method thereof

Info

Publication number: CN101762125A
Application number: CN200810182234A
Authority: CN
Inventors: 胡梅宴
Original assignee: Zhejiang Sanhua Co Ltd
Current assignee: Zhejiang Sanhua Co Ltd
Priority date: 2008-11-21
Filing date: 2008-11-21
Publication date: 2010-06-30

Abstract

The invention relates to an electric throttling distribution mechanism which comprises a casing, an input connecting pipe, 2 outlet connecting pipes and at least 1 throttling hole, wherein the throttling hole is respectively communicated with each outlet connecting pipe; a coil component is fixed on the exterior of the casing; the interior of the casing is provided with a valve cavity, and the valve cavity is communicated with the input connecting pipe; an attracting piece is fixed at one end of the valve cavity; the interior of the valve cavity is also provided with a movable iron core and a return spring, wherein the movable iron core can move in a reciprocating way and the return spring is arranged between the attracting piece and the movable iron core; and the electric throttling distribution mechanism realizes the flow distribution between at least two throttling holes through the reciprocating movement of the movable iron core, realizes the flow throttling and distribution of the refrigerant to 2 groups of heat-exchanging units or 2 groups of heat exchangers, and then completes the flow throttling and distribution in the indoor machine in the one-for-two air conditioner system or the flow energy saving and distribution of the refrigerating system comprising 2 groups of heat exchangers; the flow distribution between the heat-exchanging units or groups of heat exchangers is uniform, therefore the heat exchange function can be fully performed; and the waste of heat exchange area is reduced, therefore the efficiency of the system is improved.

Description

A kind of electric throttling distribution mechanism and air-conditioning system thereof and flow control methods

Technical field

The invention belongs to a kind of electric throttling distribution mechanism, the electric throttling distribution mechanism 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 each indoor set to be controlled separately and by distributor and expansion valve dispense flow rate, it as 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 described each indoor set, thereby realize that one drags the distribution according to need of many air conditioner coolant flow quantities by a control to each indoor set.Be the 02137580.1 disclosed scheme of being announced of patent of invention specification 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 by the controller enforcement of controlling each indoor set respectively separately, thereby finish 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 by above-mentioned control mode, the flow of each indoor set can be realized control separately, service precision is higher, but use parts more relatively, be 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 as the application number of on November 29th, 2006 application, also need a distributor in addition.Number of components is many like this, and manufacturing cost height, pipeline connect complicated, and simultaneously because the quantity of control circuit and valve is corresponding increases, manufacturing cost is corresponding to be increased.The application number that on September 26th, 2007 authorized is to have same problem too in the 02137580.1 patent of invention specification of being announced.

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 prior art exists many, the manufacturing cost height, pipeline connects complicated problems, as with the fridge-freezer of 2 refrigerating evaporators etc., provide the electric throttling distribution mechanism that a kind of control is simple relatively, easy to install, manufacturing cost is lower at the air-conditioning system of using 2 indoor heat converters or 2 groups of heat exchangers or other refrigeration system.

For this reason, the present invention is by the following technical solutions:

A kind of electric throttling distribution mechanism, comprise that shell, input are taken over, 2 discharge connections reach at least 1 throttle orifice that is communicated with respectively with described each discharge connection, shell is fixed with coil component outward, a valve pocket is arranged in the shell, valve pocket is taken over input and is connected, end at valve pocket is fixed with an attractor, also have the moving iron core of an energy reciprocating action in the described valve pocket and be arranged on described attractor with should moving iron core between returning spring, the reciprocating action of this electric throttling distribution mechanism by moving iron core is to carrying out assignment of traffic between the described throttle orifice.

Preferably, thus described electric throttling distribution mechanism to the assignment of traffic between the described throttle orifice be by control described moving iron core reciprocating action make described throttle orifice respectively fully the time scale of conducting distribute.

Optionally, described electric throttling distribution mechanism also comprises 2 that be communicated with described discharge connection respectively and be communicated with valve pocket simultaneously normal open throttle orifices.

Optionally, described moving iron core is fixed with a guiding valve, and guiding valve is relative to described throttle orifice setting.

Optionally, electric throttling distribution mechanism also comprises a valve seat, described at least 2 throttle orifices are arranged on the described valve seat, described guiding valve is relative to described valve seat setting, described guiding valve makes the wherein complete conducting of at least one throttle orifice respectively in the coil component energising of electric throttling distribution mechanism, 2 operating positions of outage.

Optionally, described moving iron core has a sliding part that makes the complete conducting of one of them throttle orifice of throttle orifice respectively.

Preferably, electric throttling distribution mechanism also comprises a valve seat, described valve seat is relative to described sliding part setting, described throttle orifice is arranged on the described valve seat, described sliding part makes the wherein complete conducting of at least one throttle orifice respectively in the coil component energising of electric throttling distribution mechanism, 2 operating positions of outage.

Preferably, there is the gap between the surface that throttle orifice is set of described sliding part and described valve seat.

Stop the location, side at the inner surface of described attractor and of valve seat respectively when preferably, described moving iron core moves between two operating positions of electric throttling distribution mechanism.

Preferably, be provided with in stopping on the side of described moving iron core or described valve seat and be fixed with a noise abatement piece.

The present invention is applicable to the air-conditioning system of 2 indoor heat converters or 2 groups of heat exchangers or has the fridge-freezer of 2 groups of vapo(u)rization systems to use.The present invention is by using an electric throttling distribution mechanism in air-conditioning system or refrigeration system, can realize controlling to the throttling and the distribution of flow of the refrigerant of each indoor heat converter or heat exchanger, thereby finish the assignment of traffic of the assignment of traffic of indoor set of one drag two air-conditioning system or an air-conditioning system that comprises 2 groups of heat exchangers and the throttling and the distribution of the refrigerant between 2 heat exchangers such as evaporimeter, and be automatically assigned to the refrigerant flow of every group of indoor heat converter or every group of heat exchanger, make between 2 indoor heat converters or the 2 groups of heat exchangers assignment of traffic even, make indoor set or heat exchanger give full play to its heat exchange effect, reduce the waste of heat exchange area, thereby improve the efficient of whole system, substituted expansion valve and the distributor in the original system simultaneously, therefore pipeline connects and can reduce, when manufacturing cost reduces, control, it is also convenient that connection is installed.

Description of drawings

Fig. 1: the structural representation of first kind of embodiment of electric throttling distribution mechanism of the present invention;

Fig. 2: the structural representation of second kind of embodiment of electric throttling distribution mechanism of the present invention;

Fig. 3: the structural representation of the third embodiment of electric throttling distribution mechanism of the present invention;

Fig. 4: the structural representation of the 4th kind of embodiment of electric throttling distribution mechanism of the present invention;

Fig. 5: the structural representation of the 5th kind of embodiment of electric throttling distribution mechanism of the present invention;

Fig. 6: the left side view of the moving lost core of electric throttling distribution mechanism shown in Figure 5;

Fig. 7: the partial schematic diagram that cooperates of the valve seat of electric throttling distribution mechanism of the present invention and sliding part;

Fig. 8: the structural representation of the 6th kind of embodiment of electric throttling distribution mechanism of the present invention.

The specific embodiment

Below in conjunction with accompanying drawing, specify embodiments of the present invention, electric throttling distribution mechanism of the present invention needing to go for throttling and carries out in the system of assignment of traffic, as the air-conditioning of family expenses one drag two, have 2 spaces fridge-freezer, and use the air-conditioning etc. of 2 groups of heat exchangers.

Fig. 1 is the structural representation of first kind of embodiment of electric throttling distribution mechanism of the present invention.As shown in the figure, electric throttling distribution mechanism comprises shell 610, the shell 610 outer coil components 608 that are fixed with, an end of shell also is fixed with the attractor 607 that soft magnet material processes in addition, attractor 607 and shell 610 sealing and fixing, also have in the shell can reciprocating action the moving iron core 606 that processes by soft magnet material, the actuated element 605 of fixedlying connected on returning spring that is provided with between described moving iron core 606 and the described attractor and the moving iron core 606, actuated element 605 also comprises guiding valve 604, the other end sealing and fixing of shell 610 has end cap 610a, end cap 610a and the shell 610 common valve pockets 602 that form, integrally formed when end cap 610a also can be the shell shaping, manufacturing cost can be lower like this; Be fixed with an input on the end cap 610a and take over 601, the import of input adapter 601 is connected with the valve pocket in the shell always, also be fixed with a valve seat 603 in the valve pocket in the shell 610, valve seat 603 is provided with a planar bottom surface, on this planar bottom surface, be processed with 2 throttle orifice: 603a, 603b, 2

discharge connection

609a, 609b are communicated with two throttle orifices respectively, and the latus rectum of 2

throttle orifice

603a, 603b is much smaller than the latus rectum of 2

discharge connection

609a, 609b; When solenoid parts 608 constantly are switched on or disconnect, described moving iron core 606 just can ceaselessly reciprocating action always under the elastic force of electromagnetic force and returning spring, moving iron core 606 when coil component is switched on and attractor 607 inconsistent, and stop that when outage and described valve seat one side is inconsistent, moving iron core 606 stops the location, side at the inner surface of described attractor and of valve seat respectively, moving iron core 606 constantly carries out reciprocating action with the electromagnetic force of coil and the spring force of returning spring between these 2 positions, thereby thereby simultaneously actuated element 605 with guiding valve 604 when moving iron core 606 actions together 606 reciprocating actions of servo-actuated iron core make the different distribution of finishing the throttling flow between two throttle orifices of time scale of the conducting of 2 throttle orifices, simultaneously by two discharge connection 609a, flow after the throttling of 609b is also reasonably distributed.The flow of two

discharge connection

609a, 609b depends on the time scale that makes each throttle orifice and the complete conducting of valve pocket after formed flow area of the latus rectum of pairing two throttle orifices and guiding valve 604 move.

For the flow that makes 2 throttle orifices keeps relative stability, this electric throttling distribution mechanism generally can be finished at high speed the open and close action, and the action frequency of general per minute can be more than 60 times, even more than 120-240 time.Therefore to make the stroke of moving iron core 606 of this electric throttling distribution mechanism as far as possible little, guiding valve 604 is arranged between throttle orifice 603a, the 603b, so as shown in the figure, make guiding valve stroke as long as with the latus rectum of throttle orifice quite.

Simultaneously when electric throttling distribution mechanism designs, can make guiding valve 604 all simultaneously two throttle orifices of conducting but conducting amount difference when two operating positions, during as the complete conducting of first segment discharge orifice 603a, the second throttle orifice 603b can conducting 1/3rd or 1/4th or still less; And as during the complete conducting of the second throttle orifice 603b, first segment discharge orifice 603a can conducting 1/3rd or 1/4th or still less; The resistance of guiding valve can be less relatively when such benefit was action, can reduce simultaneously the actuating length of guiding valve, during as the complete conducting of first segment discharge orifice 603a, the second throttle orifice 603b conducting three/for the moment, during the complete conducting of the same second throttle orifice 603b, first segment discharge orifice 603a conducting 1/3rd, the stroke of guiding valve just needs only 2/3rds of throttle orifice latus rectum like this, the stroke that is corresponding moving iron core also needs only 2/3rds of throttle orifice latus rectum, and the electromagnetism consumed power of electric throttling distribution mechanism also can correspondingly reduce like this; And at guiding valve 604 during with the complete conducting of throttle orifice, another throttle orifice also can also keep certain flow, so more help the even running of system, flowed fluctuation is reduced, and the action frequency of electric throttling distribution mechanism also can correspondingly reduce, and can also improve the time in service life of electric throttling distribution mechanism like this.

Fig. 2 is second kind of embodiment of electric throttling distribution mechanism of the present invention, the difference of this embodiment and first embodiment is, on valve seat 603, also be respectively equipped with and discharge connection 609a, normal open throttle orifice 611a that 609b is communicated with respectively and that be communicated with described valve pocket 602 maintenances simultaneously, 611b, normal open throttle orifice 611a is connected with discharge connection 609a with throttle orifice 603a simultaneously, and normal open throttle orifice 611b is communicated with discharge connection 609b with throttle orifice 603b simultaneously, the flow of discharge connection just is respectively that flow after the throttling of a normal open throttle orifice is added the flow after a throttle orifice throttling distributes like this, like this under the constant situation of flow that discharge connection needs, throttle orifice 603a, the flow that the needs of 603b distribute just can reduce, throttle orifice 603a like this, the latus rectum of 603b just can reduce, and just the actuating length of the moving iron core of electric throttling mechanism can reduce promptly can reduce the power of electric throttling mechanism.The throttle orifice of being mentioned among the present invention does not comprise the normal open throttle orifice.Other structure of this embodiment is all consistent with top described embodiment with operation principle and working method, so just no longer repeat.

Fig. 3 is the further improvement to above-mentioned second embodiment, as shown in the figure, the main distinction of this embodiment and second embodiment is, shell 610 described in this embodiment is the shell of the integrally formed end sealing of an end cap and shell, so just cancelled the end cap 610a in the above-mentioned embodiment, described input adapter 601 changes into and being arranged on the valve seat, the welding of input adapter 601,

discharge connection

609a, 609b and shell 610, valve seat 603 can once be finished like this, thereby can reduce manufacturing procedure, reduce number of spare parts simultaneously.Other structure of this embodiment is all consistent with top described second embodiment with operation principle and working method, so just no longer repeat.

Introduce the 4th kind of embodiment of the present invention below in conjunction with Fig. 4, as shown in the figure, this electric throttling distribution mechanism comprises the shell 610 of one one end sealing, the shell 610 outer coil components 608 that are fixed with, an end of the shell sealing and fixing attractor 607 that has soft magnet material to process also in addition, attractor 607 is fixed with shell 610 seal weldings, the moving iron core 606 that processes by soft magnet material that also has vertically reciprocating action in the shell, the returning spring that is provided with between described moving iron core 606 and the described attractor 607, form valve pocket 602 in the shell 610, be provided with in the valve pocket 602 and be fixed with a valve seat 603, be fixed with an input on the valve seat 603 and take over 601,2

discharge connection

609a, 609b, 601 and 2 discharge connection 609a are taken in input, 609b and valve seat 603, shell 610 is welded seal simultaneously, the import of input adapter 601 is connected with the valve pocket in the shell, valve seat 603 has a planar bottom surface 603c, on this planar bottom surface, be processed with 2 throttle orifice: 603a, 603b, 2

discharge connection

609a, 609b respectively with two

throttle orifice

603a, 603b is communicated with, 2 throttle orifice 603a, the latus rectum of 603b is less than 2 discharge connection 609a, the latus rectum of 609b; Be relatively set with a sliding part 606e with the planar bottom surface 603c of valve seat, sliding part 606e and moving iron core are fixed together, and sliding part 606e and moving iron core are formed as one in this embodiment, and sliding part 606e and moving iron core also can the split fixed combination in addition.Sliding part 606e is provided with a central through hole 606d and is provided with a via 606a, sliding part 606e also has a corresponding plane 606c of the planar bottom surface with valve seat in addition, has the gap between the plane 606c of sliding part 606e and the planar bottom surface 603c of valve seat.When the solenoid parts cut off the power supply, as shown in Figure 4, sliding part 606e by central through hole 606d and via 606a with the complete conducting of throttle orifice 603b, and when the solenoid parts are switched on, moving iron core 606 drives sliding part 606e and moves to the right, at this moment sliding part makes the complete conducting of throttle orifice 603a, and corresponding throttle orifice 603b is then covered by sliding part 606e and not exclusively conducting; Because the existence in gap between the plane 606c of sliding part 606e and the planar bottom surface 603c of valve seat, throttle orifice still can guarantee certain basic throttling through-current capacity under situation about being covered by sliding part 606e.Like this when solenoid parts 608 constantly are switched on or disconnect, described moving iron core 606 just can ceaselessly reciprocating action always under the elastic force of electromagnetic force and returning spring, and inner surface by attractor 607 and valve seat stop the location, side, thereby thereby simultaneously sliding part 606e when moving iron core 606 actions together 606 reciprocating actions of servo-actuated iron core make the different distribution of finishing the throttling flow between two throttle orifices of time scale of the conducting of 2 throttle orifices, the flow by two

discharge connection

609a, 609b is also reasonably distributed simultaneously.The flow of two

discharge connection

609a, 609b depends on that the gap between the planar bottom surface 603c that makes the time scale of each throttle orifice and the complete conducting of valve pocket, the plane 606c that adds sliding part 606e and valve seat after formed flow area of the latus rectum of pairing two throttle orifices and sliding part move flows to the through-current capacity of 2 throttle orifices.Under this working method, because its sliding part 606e that is driven did not contact with valve seat 603 when moving iron core 606 moved, there is not corresponding friction like this, therefore, the resistance that moving iron core will overcome just compares less, some flow of gap of adding between the planar bottom surface 603c of the plane 606c of sliding part 606e and valve seat flows to 2 throttle orifices, and the latus rectum of such 2 throttle orifices also can suitably reduce, and the power of whole like this electric throttling mechanism just can reduce.

Fig. 5 is the improvement to above-mentioned the 4th embodiment, the difference of this embodiment and the 4th embodiment is: also be provided with a stage portion 606b at moving outer diameter part with ends described valve seat 603 inconsistent location iron core 606, like this, when moving iron core 606 contacts long-term the collision with valve seat 603 in course of action, because the difference of the mechanical performance of two kinds of materials, cause moving iron core 606 as meeting with valve seat 603 stop that the inconsistent external diameter in side partly has a certain amount of distortion because of long-term collision the time, owing to the existence of stage portion 606b causes moving phenomenon such as bad with regard to not taking place because of the big external diameter of the change of moving iron core and shell block.

In the embodiment recited above, the described throttle orifice that is communicated with discharge connection is one, this is not a kind of restriction, in actual moving process, if the capacity of system is bigger, as the freezing and refrigerating system of commercialization and the air-conditioning system that some are bigger etc., the needed through-current capacity meeting of system integral body is bigger like this, at this moment can in electric throttling mechanism, dispose corresponding 2 or more a plurality of parallel throttle orifice at each discharge connection, as shown in Figure 7, at this moment per 2 or a plurality of throttle orifice are connected with a discharge connection simultaneously, and the stroke of sliding part still needs only and the latus rectum sizableness of a throttle orifice, like this, use the electric throttling distribution mechanism of equal-wattage to carry out the throttling of the bigger system of through-current capacity and the function of assignment of traffic with regard to having satisfied.As shown in Figure 7, what be connected with first discharge connection has 2 throttle orifice 603a, what be connected with second discharge connection has 2 throttle orifice 603b, and the stroke of sliding part 606e is the same with above-mentioned embodiment, quite just passable with the latus rectum of a throttle orifice, if and replace this 2 throttle orifices with a relatively large throttle orifice, the stroke of then corresponding sliding part 606e also will increase.

Fig. 8 is the further improvement at top the 5th embodiment, in this embodiment, when reducing moving iron core 606 actions with valve seat 603 collide the metal to metal that causes collision sound and reduce to collide to moving the influence of iron core, between the inconsistent face of moving iron core 606 and valve seat 603, a nonmetallic noise abatement piece 612 is set, noise abatement piece 612 can be provided be fixed on valve seat 603 be used for moving iron core contacted stop the side and protrude in valve seat 603 slightly form with the contacted surface of moving iron core and stop the side, also can be arranged on the surface that contacts with valve seat that is used for also protruding in slightly moving iron core of moving iron core with the contacted surface of valve seat, among the figure, noise abatement piece 612 be arranged on moving iron core with the contacted surface of valve seat and protrude in this surface.In running, moving iron core is exactly inconsistent by noise abatement piece 612 and valve seat with contacting of valve seat like this, thereby the sound of both contacts just becomes nonmetal and metal bump sound, can reduce both noises that collision produced like this.Noise abatement piece 612 can be selected the material such as the materials such as nylon, PPS of anti-cold-producing medium and better mechanical property for use.

The entrance sleeve of being mentioned among the present invention, discharge connection are 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.

Air-conditioning system or an indoor heat converter that electric throttling distribution mechanism of the present invention is suitable for general one drag two are divided into 2 groups air-conditioning system, and the fridge-freezer in 2 spaces etc. is arranged.The control mode of this refrigeration system can adopt the control mode after the accurate Calculation, at digital signal processing unit by comprehensive analysis and judgement to the information that received, draw two indoor heat converters of air-conditioning system or the correct proportions of two needed flows of heat exchanger, send control signal and give control module, thereby control module is supplied with control information electric throttling distribution mechanism again the flow of 2 throttle orifices by electric throttling distribution mechanism can correctly be pro rata distributed.

In sum, the present invention is by electric throttling distribution mechanism of configuration in refrigeration system such as air-conditioning system, thereby can realize between two indoor heat converters of refrigeration system or the two groups of heat exchangers enforcement throttling and carry out reasonably assignment of traffic in cancellation expansion valve and flow distributor.The refrigerant flow of system is reasonably distributed, heat exchanger or efficiency of heat exchanger are not fully exerted, can also set simultaneously the through-current capacity of each throttle orifice according to the statistics of the heat-transfer effect of each heat exchanger or heat exchanger, and avoid between original two groups of heat exchangers or the heat exchanger 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

1. electric throttling distribution mechanism, comprise that shell, input are taken over, 2 discharge connections reach at least 1 throttle orifice that is communicated with respectively with described each discharge connection, shell is fixed with coil component outward, a valve pocket is arranged in the shell, valve pocket is taken over input and is connected, end at valve pocket is fixed with an attractor, also have the moving iron core of an energy reciprocating action in the described valve pocket and be arranged on described attractor with should moving iron core between returning spring, the reciprocating action of this electric throttling distribution mechanism by moving iron core is to carrying out assignment of traffic between the described throttle orifice.

2. electric throttling distribution mechanism as claimed in claim 1, thus it is characterized in that described electric throttling distribution mechanism to the assignment of traffic between the described throttle orifice be by control described moving iron core reciprocating action make described throttle orifice respectively fully the time scale of conducting distribute.

3. electric throttling distribution mechanism as claimed in claim 1 is characterized in that described electric throttling distribution mechanism also comprises 2 that be communicated with described discharge connection respectively and be communicated with valve pocket simultaneously normal open throttle orifices.

4. as claim 1～3 each described electric throttling distribution mechanism wherein, it is characterized in that described moving iron core is fixed with a guiding valve, guiding valve is relative to described throttle orifice setting.

5. electric throttling distribution mechanism as claimed in claim 4, it is characterized in that also comprising a valve seat, described at least 2 throttle orifices are arranged on the described valve seat, described guiding valve is relative to described valve seat setting, described guiding valve makes the wherein complete conducting of at least one throttle orifice respectively in the coil component energising of electric throttling distribution mechanism, 2 operating positions of outage.

6. electric throttling distribution mechanism as claimed in claim 1 is characterized in that described moving iron core has a sliding part that makes the complete conducting of one of them throttle orifice of throttle orifice respectively.

7. electric throttling distribution mechanism as claimed in claim 6, it is characterized in that also comprising a valve seat, described valve seat is relative to described sliding part setting, described throttle orifice is arranged on the described valve seat, described sliding part makes the wherein complete conducting of at least one throttle orifice respectively in the coil component energising of electric throttling distribution mechanism, 2 operating positions of outage.

8. electric throttling distribution mechanism as claimed in claim 7 is characterized in that having the gap between the surface that throttle orifice is set of described sliding part and described valve seat.

9. as claim 5,7,8 each described electric throttling distribution mechanism wherein, it is characterized in that stopping the location, side at the inner surface of described attractor and of valve seat respectively when described moving iron core moves between two operating positions of electric throttling distribution mechanism.

10. electric throttling distribution mechanism as claimed in claim 9 is characterized in that being provided with in stopping on the side of described moving iron core or described valve seat and is fixed with a noise abatement piece.