CN101929563B - Electromagnetic valve closed in electrified state - Google Patents
Electromagnetic valve closed in electrified state Download PDFInfo
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- CN101929563B CN101929563B CN 200910149820 CN200910149820A CN101929563B CN 101929563 B CN101929563 B CN 101929563B CN 200910149820 CN200910149820 CN 200910149820 CN 200910149820 A CN200910149820 A CN 200910149820A CN 101929563 B CN101929563 B CN 101929563B
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 155
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- 238000002788 crimping Methods 0.000 claims description 6
- 239000000306 component Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 4
- 238000005057 refrigeration Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 description 47
- 230000009471 action Effects 0.000 description 10
- 230000033558 biomineral tissue development Effects 0.000 description 3
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- 239000007788 liquid Substances 0.000 description 3
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Abstract
The invention discloses an electromagnetic valve closed in an electrified state, which comprises a valve body part and a coil part, wherein a movable iron core part and a fixed ion core component are arranged in the valve body part. The electromagnetic valve is characterized in that: the fixed ion core component comprises a fixed part which is immobilized axially and a moveable part which can move axially and relatively; and an offsetting spring is arranged between the fixed part and the moveable part which can rotate axially and relatively. The electromagnetic valve closed in the electrified state belongs to the technical field of refrigeration control. After the electromagnetic valve of the invention is used, an assembly process is relative simple, the offsetting spring avoids an electromagnetic loop, the magnetic loop is rationally designed, and thus, the stability and reliability of the electromagnetic valve can be guaranteed.
Description
Technical field
The invention belongs to the refrigeration control technical field, be particularly suitable for the control of the pipeline of the refrigeration systems such as chiller plant, business air conditioner.Be specifically related to a kind of electromagnetic valve structure of closed in electrified state.
Background technique
The solenoid valve that opens and closes usefulness as pipeline is widely used in the loop of refrigeration system, and general solenoid valve is opened during for energising, and the pipeline that has adopts closed in electrified state and more energy-conservation and suitable.The solenoid valve that energising is closed generally has two kinds, a kind of is that to be 03231177.X, patent name such as number of patent application be the disclosed solenoid valve of Chinese utility model patent of " have reducing pressure by regulating flow often open DC electromagnetic valve ", this solenoid valve is the mode of operation that adopts direct open and close, the through-current capacity less of general solenoid valve; And be the working method that adopts leading type namely indirectly to open and close for relatively large a kind of of through-current capacity, be that 200420108493.2 the disclosed name of Chinese utility model patent is called " a kind of silencing vibration-damping fore-runner normal open type solenoid valve " such as number of patent application.
In above-mentioned two kinds of solenoid valves, electromagnetic coil parts, valve body parts have been included.Be provided with valve port in the valve body parts, be provided with sealed member with respect to this valve port, be fixed with the static iron core parts in the side near sealed member, and the end away from sealed member at the static iron core parts also is provided with a moving iron core member in valve body, and sealed member is fixedly connected on the moving iron core member; When the electromagnetic coil parts are switched on, thereby thereby moving iron core member moves to static iron core parts direction under the effect of electromagnetic force and drives described sealed member and move shut electromagnetic valve to the valve port direction; And when the electromagnetic coil parts cut off the power supply, thereby thereby moving iron core member moves to the direction away from the static iron core parts under the effect of spring restoring force and drives described sealed member and open solenoid valve away from the valve port direction.
In the solenoid valve of such scheme, sealed member is fixedly connected on the moving iron core member, and moving iron core member and sealed member lay respectively at the two ends of static iron core parts, in addition because sealed member is to drive action by the drive link that is fixed on the moving iron core member, requirement is higher when assembling like this, and assembly technology is more complicated also.
Summary of the invention
The technical assignment of the technical problem to be solved in the present invention and proposition is a kind of new solenoid valve at closed in electrified state of design, and assembly technology is relatively simple, and magnetic Circuit Design is reasonable.The present invention is by the following technical solutions for this reason:
A kind of solenoid valve of closed in electrified state, comprise valve body parts and coil component, there are iron core member, static iron core assembly in described valve body parts inside, it is characterized in that: described static iron core assembly comprises the motionless fixed part of axial restraint and can be axially relative movable movable part, also be provided with returning spring between the movable part of described fixed part and axially relative activity; Described fixed part comprises static iron core parts and fixed block, and fixed block is fixed by crimping or riveted joint static iron core parts; Described movable part comprises the drive sleeve of transmission part, and described returning spring is arranged between described drive sleeve and the described fixed block.
The movable part of described static iron core assembly also comprises sealed member, also is provided with elastic element between described transmission part and described sealed member.
Optionally, described elastic element is Packing spring.
Preferably, when solenoid valve energising is closed the spring force of Packing spring less than the spring force of returning spring this moment.
Preferably, the spring force of Packing spring be this moment returning spring spring force 1/3 to 1/10 between.
Optionally, described movable part also comprises the retainer of the described transmission part in the receiving cavity that is arranged on described static iron core parts and is arranged in described receiving cavity or part is arranged in the sealed member of described receiving cavity.
Optionally, the length of the drive link of described transmission part is greater than the degree of depth of the through hole of described static iron core component upper ends section and the stroke sum of described moving iron core member; In solenoid valve no electric circuit situation, directly do not contact between the upper plane of the locating face of the bottom of the receiving cavity of described static iron core parts and drive sleeve and the upper plane of retainer.
Optionally, the gap between the upper plane of the upper plane of the locating face of the bottom of the receiving cavity of described static iron core parts and drive sleeve and retainer is between the 0.05-1mm.
Optionally, described movable part also comprise part stretch out in described static iron core parts, part be arranged in described static iron core parts receiving cavity dirivig member and be arranged in the described receiving cavity of static iron core parts or the sealed member that part is arranged in described receiving cavity; Described transmission part further comprises described dirivig member.
Preferably, the length of the upper end of described dirivig member part is greater than the degree of depth of the through hole of described static iron core component upper ends section and the stroke sum of described moving iron core member; In solenoid valve no electric circuit situation, directly do not contact between the upper plane of the locating face of the bottom of the receiving cavity of described static iron core parts and drive sleeve and the step surface of dirivig member.
Preferably, the gap between the step surface of the upper plane of the locating face of the bottom of the receiving cavity of described static iron core parts and drive sleeve and dirivig member is between the 0.05-1mm.Be more preferably, the gap is between the 0.15-0.5mm.
After adopting solenoid valve of the present invention, make sealed member be fixed in static iron core assembly of described static iron core formation axially and movably, can make whole static iron core assembly unified, when the apertures different, that need the adjustment solenoid valve of the through-current capacity at solenoid valve are spacing, as long as adjust the spacing of moving iron core member and static iron core assembly, can make like this static iron core assembly realize standardization; In addition, the returning spring of solenoid valve of the present invention is arranged between the fixed part and movable part of static iron core assembly, has avoided the magnetic circuit of solenoid valve, thereby can guarantee the Stability and dependability of solenoid valve; And when assembling, sealed member need not to be fixed on the moving iron core member, assembled conveniently, reduced difficulty of processing.
Description of drawings
Fig. 1: the schematic representation of the first mode of execution of the static iron core assembly of the solenoid valve that the present invention provides;
Fig. 1 a: the schematic representation of the drive sleeve of static iron core assembly shown in Figure 1;
Fig. 2: the schematic representation of the second mode of execution of the static iron core assembly of the solenoid valve that the present invention provides;
Fig. 3: the schematic representation of the 3rd mode of execution of the static iron core assembly of the solenoid valve that the present invention provides;
Fig. 4: the schematic representation of the 4th mode of execution of the static iron core assembly of the solenoid valve that the present invention provides;
Fig. 5: the schematic representation of the 5th mode of execution of the static iron core assembly of the solenoid valve that the present invention provides;
Fig. 6: the schematic representation of the 6th mode of execution of the static iron core assembly of the solenoid valve that the present invention provides;
Fig. 7: the schematic representation of a kind of mode of execution of solenoid valve of the present invention;
Fig. 7 a: the local enlarged diagram of solenoid valve shown in Figure 7.
Embodiment
The present invention is applicable to the solenoid valve of closed in electrified state, as the solenoid valve of directly closing when being applicable to switch on and realizing by leading type indirectly closing, when the through-current capacity of solenoid valve requires less, generally adopt the structure of direct open and close, and when solenoid valve requires through-current capacity relatively large, adopt a kind of structure of indirect open and close of leading type; From two kinds of structures, adopt the structure of indirect open and close of leading type relatively complicated, both working principles are identical, are specifically described with a kind of solenoid valve that adopts leading type to realize and indirectly closing below for this reason.
Fig. 7 is the schematic representation of a kind of mode of execution of solenoid valve of the present invention, and Fig. 1 is the schematic representation of the first mode of execution of the static iron core assembly of the solenoid valve that provides of the present invention, and Fig. 1 a is the schematic representation of the drive sleeve of static iron core assembly shown in Figure 1.
As shown in the figure, solenoid valve comprises valve body parts 2, valve body 3 and electromagnetic coil parts 1, and valve body parts 2 comprises sleeve pipe 24, plug 21, and sleeve pipe 24 seals fixing with valve seat 26 by welding; End shutoff at sleeve pipe 24 has plug 21, near an end of plug 21 have can be under the effect of electromagnetic force axial movable moving iron core member 22, the other end at plug 21 is the static iron core assembly 25 of fixing with sleeve pipe 24, the static iron core parts 251 of static iron core assembly 25 and sleeve pipe 24 are fixed by welded seal, also can be by the fixing welded seal that then carries out of roll extrusion.Valve body 3 with the end opposite with plug 21 of valve body parts 2, valve body 3 is tightly connected with valve body parts 2, realizes sealing by sealing gasket 4 in the present embodiment.Be provided with the valve port that seals usefulness for open and close at valve body 3.In the present embodiment, be to utilize the diaphragm 53 of diaphragm parts 5 to contact sealing with valve port; Also have guide valve core 51, catch 52 on the diaphragm parts 5.Guide valve core 51 is provided with the pilot valve mouth 51a that contacts and seal with Sealing 257.This partial structure of valve body and of the present invention the contact are not close especially, therefore no longer are described in detail.
Static iron core assembly 25 includes static iron core parts 251, the upper end portion 251a near moving iron core member side of static iron core parts 251 is provided with a through hole 251d, static iron core parts 251 are provided with receiving cavity 258 at the underpart 251b near the opposite side of described moving iron core member side, thereby the internal diameter of receiving cavity 258 forms a locating face 2511 greater than the internal diameter of through hole 251d; Static iron core parts 251 are a thinner wall section 251c bottom; Be fixed with fixed block 255 ' in receiving cavity 258, fixed block 255 ' and static iron core parts 251 tip portion by the thinner wall section 251c of crimping static iron core parts 251 makes it distortion and fixes; In the present embodiment, also be provided with drive sleeve 252 in the receiving cavity 258, drive sleeve 252 is positioned at described receiving cavity 258, can be fixed in axially and movably in the drive sleeve 252 as the Sealing 257 ' of sealed member, and Sealing 257 ' also is positioned at described receiving cavity like this.Be not limited to this in the embodiment in addition, an end of drive sleeve 252 can protrude from described receiving cavity 258, and namely part is arranged in described receiving cavity, and part protrudes from receiving cavity; Being fixed on Sealing in the drive sleeve also can be that part is arranged in receiving cavity, and some protrudes from the receiving cavity of static iron core parts, and like this, the short transverse of solenoid valve can shorten and more reasonable.
The top 2521 of drive sleeve 252 has upper plane 252g, thereby the external diameter on top 2521 is formed for locating the second locating face 252e of returning spring greater than the external diameter at middle part 2522; Thereby the internal diameter in the hole on top 2521 is formed for the first locating face 252d of positioning transmission seat greater than the internal diameter at middle part 2522; The bottom 252b of drive sleeve 252 has hole 252c, thereby the internal diameter of hole 252c forms the 3rd locating face 252f of fixing seals less than the internal diameter at middle part 2522, and Sealing contacts with valve port by hole 252c and realizes open and close.Be provided with returning spring 254 between drive sleeve 252 and the fixed block 255 ', the second locating face 252e of returning spring 254 1 end butt drive sleeve 252, the plane of the other end butt fixed block 255 '.Like this when energising, the outer electromagnetic coil parts 1 of the upper end portion of static iron core parts 251, moving iron core member 22 and sleeve pipe form a magnetic circuit, be arranged in the returning spring of receiving cavity 258 of underpart of static iron core parts 251 then not at magnetic circuit, improve the adhesive electromagnetic force of solenoid valve so on the one hand, and helped the stability of returning spring.In addition, also be provided with retainer 253 ' in the drive sleeve 252, and between retainer 253 ' and Sealing 257 ', be provided with elastic member, elastic member in the present embodiment is Packing spring 256, and the spring force of Packing spring 256 is less than returning spring 254 spring force this moment when solenoid valve energising is closed; More suitable, the spring force of Packing spring 256 be this moment returning spring 254 spring force 1/3 to 1/10.Contact with moving iron core member 22 as the drive link 23 of transmission part some through hole 251d one end by the upper end portion of static iron core parts 251, the other end and retainer 253 ' connect.Drive link 23 all is the component part of transmission part with retainer 253 ', drive sleeve 252.In order to guarantee pressure in the receiving cavity 258 and the pressure balance outside the chamber, on fixed block 255 ', also equalizing orifice 255a can be set.Be similarly the pressure balance that guarantees position between receiving cavity and static iron core parts and the moving iron core member, on drive sleeve 252, also be provided with drive sleeve equalizing orifice 252a.Simultaneously, solenoid valve is in the no electric circuit situation, make between the locating face 2511 of receiving cavity of the upper plane of upper plane 252g, retainer 253 ' of drive sleeve 252 and static iron core parts 251 all to keep certain gap, between 0.05-1.0mm, thereby make the inside of solenoid valve keep pressure balance; More suitable, this gap is arranged between the 0.15-0.5mm.Like this, just form a pressure equalisation passage in solenoid valve inside, can wholely keep pressure balance.In addition, the upper plane 252g of drive sleeve 252 might not keep equal with the upper plane of retainer 253 ', and certain height difference can be arranged, as is not more than the height difference about 0.25mm.
Static iron core parts 251 are that retainer shaft is to fixed fixed part in solenoid valve with fixed block 255 ', and the retainer 253 ', drive sleeve 252, Sealing 257 ', the Packing spring 256 that are fixed on static iron core parts 251 are exactly the axial movable movable part of energy in the static iron core assembly, and this part is moved along with the action of moving iron core member and drive link.And the energy that returning spring just is arranged on the static iron core assembly is axially between the motionless fixed part of movable movable part and axial restraint.
The working principle of solenoid valve and working condition are substantially as follows:
In the cold situation of electromagnetic coil parts, under the effect of the spring force of returning spring 254, by drive sleeve 252, further pass to drive link 23, thereby make iron core member 22 press close to plug 21, iron core member 22 and static iron core parts 251 are separated and be in disengaged position.Do not have at the two ends of solenoid valve in the situation of pressure difference, at this moment diaphragm parts 5 contact with valve port under Gravitative Loads, and at this moment solenoid valve is in closed condition.
If at this moment the suction port 31 of solenoid valve has gas/liquid to flow into, at this moment the pressure at suction port 31 positions is higher than the pressure at 32 positions, air outlet, the pressure that namely is higher than the chamber of the diaphragm parts top that communicates with air outlet 32, the up and down both sides mineralization pressure of diaphragm parts 5 is poor like this, under the effect of the pressure that pressure difference produces, move on the diaphragm parts 5, and spacing by catch 52 and valve seat 26, at this moment the valve port 51a of Sealing and guide valve core 51 is in disengaged position, and valve port is in opening state.Open in order to reduce diaphragm, the impact force when closing, guarantee working life of diaphragm to be provided with diaphragm equalizing orifice 53a at diaphragm, the latus rectum of diaphragm equalizing orifice 53a is less than the latus rectum of the valve port 51a of guide valve core 51.
In the situation of electromagnetic coil parts 1 energising, electromagnetic force is greater than the effect of the spring force of returning spring 254, moving iron core member 22 moves and drives drive link 23 as transmission part to static iron core parts 251 directions under the effect of electromagnetic force, drive link 23 drives retainer 253 ', retainer 253 ' drives drive sleeve 252 and moves as the Sealing of the sealed member together pilot valve mouth 51a direction of guide spool 51, until the pilot valve mouth 51a of Sealing contact guide valve core 51, at this moment the diaphragm equalizing orifice 53a by arranging on the diaphragm parts 53 tends to balance the pressure at the up and down two ends of diaphragm parts 53.Diaphragm parts 53 move down close port under the effect of the electromagnetic force of moving iron core member 22 and static iron core parts 251; During beginning, the displacement of Sealing equates with the displacement of moving iron core member 22, until the sealing surface of Sealing touches the pilot valve mouth 51a of guide valve core 51, at this moment moving iron core member 22 continues mobile certain distance, such as 0.1-1mm, and Sealing is at this moment no longer mobile because of the pilot valve mouth 51a of butt guide valve core 51, Packing spring 256 by compression like this, its spring force makes Sealing (257,257 ') keep with the valve port 51a of guide valve core 51 and contact and seal, and the 3rd locating face 252f of the bottom surface of Sealing this moment (257,257 ') and drive sleeve 252 keeps certain interval.Be that Sealing (257,257 ') is axially relatively to be movably fixed on the static iron core parts 251.
When the solenoid valve energising turns to outage, electromagnetic force between moving iron core member 22 and the static iron core parts disappears, moving iron core member 22 leaves the static iron core parts under the effect of the spring force of returning spring 254, at the beginning, Sealing (257,257 ') not mobile, until after moving a certain distance, the bottom surface of Sealing (257,257 ') contacts with the 3rd locating face 252f of drive sleeve 252, drive sleeve 252 band dynamic seals (257,257 ') move on, at this moment the spring force of returning spring 254 overcomes the active force of pressure reduction of the pilot valve mouth 51a of guide valve core 51, opens the pilot valve mouth 51a of guide valve core 51, like this, the pressure decreased of the upper end of diaphragm parts 5, thereby the upper and lower end mineralization pressure at diaphragm parts 5 is poor, under the pressure difference effect, removes the valve port that opens lower valve body 3 on the diaphragm parts 5.When if the two ends of solenoid valve do not have pressure difference or pressure difference less than 0.005Ma, the diaphragm parts contact with valve port under Gravitative Loads, and solenoid valve is in closed condition; If the suction port of solenoid valve 31 has gas/liquid to flow into, the pressure of suction port 31 is higher than the pressure of air outlet 32, the pressure that namely is higher than the chamber of the diaphragm parts top that communicates with air outlet 32, the up and down both sides mineralization pressure of diaphragm parts 5 is poor, when the pressure of pressure difference reaches greater than diaphragm parts deadweight power, move on the diaphragm parts 5, and spacing by catch 52 and valve seat 26, at this moment Sealing 257 is in disengaged position with the valve port 51a of guide valve core 51, and primary valve is in opening state.Thereby realize usually opening and in function that can closed in electrified state.
The below introduces another static iron core assembly, Figure 2 shows that the second mode of execution of static iron core assembly of the present invention.As shown in the figure, the difference of present embodiment and the first mode of execution is: in order to guarantee drive sleeve 252 good guidance quality in course of action, adopted a fixed block that replaces in the first mode of execution with the fixed block 255 of the guiding of ring-type.Like this, the guidance quality of solenoid valve action of drive sleeve in course of action is just reliable, and the action of solenoid valve is also more steadily reliable.
In addition, the retainer among the present invention and the elastic element between the Sealing are not limited to Packing spring, can also adopt elasticity relatively preferably rubber parts and other elastic element.
In order to make the Packing spring that arranges between retainer in above-mentioned the first mode of execution, the second mode of execution and the Sealing fixing reliable, stable, can surely be used for the protuberance that Packing spring is located usefulness arranging towards Packing spring one side of retainer or Sealing, like this, Packing spring 256 can not break away or be offset, thereby makes the sealing of Sealing and valve port reliable and stable.Protuberance can be arranged on retainer and part of Sealing, also can on retainer and Sealing, all arrange, as shown in Figure 3, it namely is a kind of mode of execution that on retainer and Sealing, all is provided with for the protuberance of location sealing spring, and the solenoid valve among Fig. 7 is the solenoid valve that has adopted a kind of leading type energising of static iron core assembly shown in Figure 3 to cut out, be specially solenoid valve at no electric circuit, without the schematic representation in the situation of pressure difference, Fig. 7 a then is the local enlarged diagram at static iron core assembly and this position of drive link.As shown in the figure, the length of drive link 23 is greater than the degree of depth in the hole of the placement drive link of moving iron core member 22 and the stroke sum of moving iron core member 22, like this, this solenoid valve is at no electric circuit, in the situation without pressure difference, drive sleeve 252 and retainer 253 is because the butt of drive link and directly not contacting with the locating face 2511 of the bottom of the receiving cavity 258 of static iron core parts, like this, in the course of action of solenoid valve, the upper plane 252g of drive sleeve 252 and the upper plane 2531 of retainer 253 not with locating face 2511 direct collisions of the bottom of the receiving cavity 258 of static iron core parts 251, thereby the problem on deformation that can avoid the upper plane 2531 of the upper plane 252g of drive sleeve 252 and retainer 253 to cause because of direct collision; In addition, the upper plane 252g of drive sleeve 252 does not directly contact the balance that can also guarantee internal pressure with the upper plane 2531 of retainer 253 with the locating face 2511 of the bottom of the receiving cavity 258 of static iron core parts 251, it is the pressure energy of gas or liquid or two-phase fluid makes the receiving cavity 258 of static iron core assembly by the equalizing orifice 255a of guide shaft fixing unit 255 inside and outside pressure balance, and the laterally or longitudinally equalizing orifice by being arranged on drive sleeve 252 and the upper plane 252g of drive sleeve 252, gap between the locating face 2511 of the bottom of the upper plane 2531 of retainer 253 and the receiving cavity 258 of static iron core parts 251 can make the up and down both sides of static iron core assembly keep pressure balance, whole solenoid valve is inner to keep pressure balance thereby make, and improves reliability and the life-span of using.Preferably, the gap between the locating face 2511 of the bottom of the receiving cavity 258 of the upper plane 2531 of the upper plane 252g of drive sleeve 252, retainer 253 and static iron core parts 251 is between the 0.05-1mm.More suitable, the gap between the locating face 2511 of the bottom of the receiving cavity 258 of the upper plane 252g of drive sleeve 252, the upper plane 2531 of retainer 253 and static iron core parts 251 is between the 0.15-0.7mm.Not necessarily equal between the upper plane 2531 of the upper plane 252g of drive sleeve 252 and retainer 253 in addition, and certain height difference can be arranged slightly, as be not more than the height difference about 0.25mm.
Fig. 4 is the 4th kind of mode of execution of static iron core assembly of the present invention.As shown in the figure, this mode of execution is the further improvement of the second mode of execution, the main distinction of this mode of execution and the second mode of execution is: in the present embodiment, the static iron core assembly has further comprised the drive link of a gearing, drive link and retainer are processed into one and have formed dirivig member 23a, can reduce number of spare parts like this.Dirivig member 23a is divided into two parts: part stretches out in the upper end part 23a1 and the lower end part 23a2 that is installed in the static iron core parts of the through hole of static iron core parts; Wherein the length of upper end part 23a1 is longer than the length of through hole of static iron core component upper ends section and the stroke sum of moving iron core member, and transmission part 23a can be fixed on the static iron core parts 251 axially and movably.During assembling, transmission part 23a is installed in first on the static iron core parts 251, be loaded on drive sleeve with Packing spring or other elastic member, Sealing, be loaded on returning spring 254 and guide shaft fixing unit 255, then the tip portion of the bottom of crimping static iron core parts makes itself and guide shaft fixing unit 255 fixing; All the other assembly processes, structure, working principle and working method all with above-mentioned mode of execution, repeat no more here.
Fig. 5 is the 5th mode of execution of static iron core assembly of the present invention, and the main distinction of this mode of execution and the 4th mode of execution is to be provided with on the Sealing protuberance for the Packing spring location.
Fig. 6 is the 6th mode of execution of static iron core assembly of the present invention.As shown in the figure, the static iron core assembly includes static iron core parts 251, the upper end portion 251a near moving iron core member side of static iron core parts 251 is provided with a through hole 251d, static iron core parts 251 are provided with receiving cavity 258 at the underpart 251b of an opposite side of close described moving iron core member side, thereby the internal diameter of receiving cavity 258 is greater than the internal diameter formation locating face 2511 of through hole 251d; Static iron core parts 251 are a thinner wall section 251c bottom; Be fixed with guide shaft fixing unit 255 in receiving cavity 258, guide shaft fixing unit 255 and static iron core parts 251 tip portion by the thinner wall section 251c of crimping static iron core parts 251 makes it distortion and fixes.Equally in the present embodiment, also be provided with drive sleeve 252 in the receiving cavity 258, drive sleeve 252 is positioned at described receiving cavity 258, described Sealing 257b can be axially movable in being fixed in drive sleeve 252, the upper end of Sealing 257b also is provided with a positioning part 257b1 who is used for location sealing spring 256, positioning part 257b1 is positioned at described receiving cavity, and Sealing 257b also is provided with a sealed department 257b2 who protrudes from drive sleeve 252 simultaneously, sealed department 257b2 protrudes from static iron core parts 251 equally, the plane that is used for the sealing valve port of guide valve core of Sealing is the surperficial 257b4 of sealed department 257b2 like this, rather than original whole bottom surface, the processing of sealing surface is more convenient like this, and airtight quality also can be more reliable.Simultaneously, the outstanding height of sealed department 257b2 is greater than Sealing 257b move distance with respect to drive sleeve 252 in movement process.Simultaneously outwards outstanding sealed department 257b2 has formed the stepped part 257b3 with the inconsistent location of the 3rd locating face 252f of drive sleeve 252 of being used for of Sealing 257b, Sealing is can be axially movable and reliablely and stablely be fixed on the drive sleeve 252 like this, and is can be axially movable and reliablely and stablely be fixed on the static iron core parts 251.
Simultaneously, also be provided with returning spring 254 between drive sleeve 252 and the guide shaft fixing unit 255, like this when energising, the outer electromagnetic coil parts 1 of the upper end portion of static iron core parts 251, moving iron core member 22 and sleeve pipe form a magnetic circuit, be arranged in the returning spring of receiving cavity 258 of lower end of static iron core parts 251 then not at magnetic circuit, improve the adhesive electromagnetic force of solenoid valve so on the one hand, and helped the stability of returning spring.In addition, the transmission part that plays gearing in the present embodiment comprises dirivig member 23b, drive sleeve 252, and dirivig member 23b comprises: part stretch out in static iron core parts 251 through hole 251d upper end part 23b1 be installed on lower end part 23b2 in the static iron core parts, and be used for the positioning part 23b3 of location sealing spring 256; Wherein the length of upper end part 23b1 is longer than the degree of depth of through hole 251d of static iron core parts one end and the stroke sum of moving iron core member, dirivig member 23b can be fixed on the static iron core parts 251 axially and movably, like this in solenoid valve no electric circuit situation, directly do not contact between the locating face 2511 of the bottom of the receiving cavity 258 of described static iron core parts 251 and the step surface 23b4 of dirivig member 23b.Dirivig member 23b consists of the transmission part of solenoid valve with drive sleeve 252.During action, thereby drive dirivig member, further drive the action of drive sleeve band dynamic seal by moving iron core member, and finish closing of solenoid valve.During concrete the installation, first dirivig member 23b is installed on the static iron core parts 251, be loaded on Packing spring, Sealing and drive sleeve, be loaded on returning spring 254 and guide shaft fixing unit 255, then the tip portion of the bottom of crimping static iron core parts is fixed itself and guide shaft fixing unit 255.All the other assembly processes, structure, working principle and working method all with above-mentioned the first mode of execution, repeat no more here.
In the top mode of execution, solenoid valve all is leading type, the present invention is not limited to this, in the situation of the through-current capacity less that requires solenoid valve, just need not adopt leading type, and as long as adopt direct open and close type just passable, as long as the Sealing that namely makes solenoid valve is directly to the primary valve on-off action of solenoid valve; Corresponding working principle, working method are simpler, no longer repeat here.
Below only be several preferred implementations that exemplify for setting forth technological scheme 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, all these improvements and modifications also should be considered as protection scope of the present invention.
Claims (11)
1. the solenoid valve of a closed in electrified state, comprise valve body parts and coil component, there are iron core member, static iron core assembly in described valve body parts inside, it is characterized in that: described static iron core assembly comprises the motionless standing part of axial restraint and can be axially relative movable moving element, be provided with returning spring between the moving element of described standing part and axially relative activity; Described standing part comprises static iron core parts and fixed block, and fixed block is fixed by crimping or riveted joint static iron core parts; Described moving element comprises the drive sleeve of transmission part, and described returning spring is arranged between described drive sleeve and the described fixed block.
2. solenoid valve as claimed in claim 1 is characterized in that, the moving element of described static iron core assembly also comprises sealed member, also is provided with elastic element between described transmission part and described sealed member.
3. solenoid valve as claimed in claim 2 is characterized in that, described elastic element is Packing spring.
4. solenoid valve as claimed in claim 3 is characterized in that, the spring force of Packing spring is less than the spring force of returning spring this moment when the solenoid valve energising is closed.
5. solenoid valve as claimed in claim 4 is characterized in that, the spring force of Packing spring be this moment returning spring spring force 1/3 to 1/10 between.
6. solenoid valve as claimed in claim 1 is characterized in that, described moving element also comprises the retainer of the described transmission part in the receiving cavity that is arranged on described static iron core parts and is arranged in described receiving cavity or part is arranged in the sealed member of described receiving cavity.
7. solenoid valve as claimed in claim 6 is characterized in that, the length of the drive link of described transmission part is greater than the degree of depth of the through hole of described static iron core component upper ends section and the stroke sum of described moving iron core member; In solenoid valve no electric circuit situation, directly do not contact between the upper plane of the locating face of the bottom of the receiving cavity of described static iron core parts and drive sleeve and the upper plane of retainer.
8. solenoid valve as claimed in claim 7 is characterized in that, the gap between the upper plane of the locating face of the bottom of the receiving cavity of described static iron core parts and drive sleeve and the upper plane of retainer is between the 0.05-1mm.
9. solenoid valve as claimed in claim 1, it is characterized in that described moving element comprises that also part stretches out in that described static iron core parts, part are arranged in the dirivig member of receiving cavity of described static iron core parts and described receiving cavity or the part that is arranged in the static iron core parts is arranged in the sealed member of described receiving cavity; Described transmission part further comprises described dirivig member.
10. solenoid valve as claimed in claim 9 is characterized in that, the length of the upper end part of described dirivig member is greater than the degree of depth of the through hole of described static iron core component upper ends section and the stroke sum of described moving iron core member; In solenoid valve no electric circuit situation, directly do not contact between the upper plane of the locating face of the bottom of the receiving cavity of described static iron core parts and drive sleeve and the step surface of dirivig member.
11. solenoid valve as claimed in claim 10 is characterized in that, the gap between the upper plane of the locating face of the bottom of the receiving cavity of described static iron core parts and drive sleeve and the step surface of dirivig member is between the 0.05-1mm.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910149820 CN101929563B (en) | 2009-06-26 | 2009-06-26 | Electromagnetic valve closed in electrified state |
| EP10167069.3A EP2267348B2 (en) | 2009-06-26 | 2010-06-23 | A normally open solenoid valve and an assembling method thereof |
| KR1020100060250A KR101155700B1 (en) | 2009-06-26 | 2010-06-24 | A normally open solenoid valve and an assembling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910149820 CN101929563B (en) | 2009-06-26 | 2009-06-26 | Electromagnetic valve closed in electrified state |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101929563A CN101929563A (en) | 2010-12-29 |
| CN101929563B true CN101929563B (en) | 2013-03-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910149820 Active CN101929563B (en) | 2009-06-26 | 2009-06-26 | Electromagnetic valve closed in electrified state |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101929563B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10522313B2 (en) | 2013-10-23 | 2019-12-31 | Rhefor Gbr | Reversing linear solenoid |
| CN111384835B (en) | 2013-10-23 | 2023-01-10 | 雷福尔公司 | Driver and locking unit including the same |
| CN105422044B (en) * | 2015-11-27 | 2018-11-16 | 中国石油天然气股份有限公司 | Simple straight-through type two-stage unloading electromagnetic valve |
| CN217401701U (en) * | 2022-01-14 | 2022-09-09 | 浙江盾安机械有限公司 | Electromagnetic valve |
| WO2024235261A1 (en) * | 2023-05-16 | 2024-11-21 | 浙江盾安人工环境股份有限公司 | Solenoid valve |
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| DE2740646A1 (en) * | 1977-09-09 | 1979-03-29 | Buerkert Gmbh | ELECTROMAGNETIC DIRECT ACTING SAFETY SHUT-OFF VALVE |
| US4608208A (en) * | 1984-08-24 | 1986-08-26 | Aisin Seiki Kabushiki Kaisha | Control valve device |
| CN2459489Y (en) * | 2001-01-12 | 2001-11-14 | 济南华能气动元器件公司 | Electromagnetic control valve for gas boosting motorcycle |
| CN2619099Y (en) * | 2003-05-12 | 2004-06-02 | 浙江三花股份有限公司 | Normally open DC electromagnetic valve with throtting and voltage reducing |
| CN201412522Y (en) * | 2009-05-24 | 2010-02-24 | 奉化市星宇电子有限公司 | Normally opened type double-spring solenoid valve |
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| DE2740646A1 (en) * | 1977-09-09 | 1979-03-29 | Buerkert Gmbh | ELECTROMAGNETIC DIRECT ACTING SAFETY SHUT-OFF VALVE |
| US4608208A (en) * | 1984-08-24 | 1986-08-26 | Aisin Seiki Kabushiki Kaisha | Control valve device |
| CN2459489Y (en) * | 2001-01-12 | 2001-11-14 | 济南华能气动元器件公司 | Electromagnetic control valve for gas boosting motorcycle |
| CN2619099Y (en) * | 2003-05-12 | 2004-06-02 | 浙江三花股份有限公司 | Normally open DC electromagnetic valve with throtting and voltage reducing |
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| JP特开2004-162771A 2004.06.10 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101929563A (en) | 2010-12-29 |
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