CN104976406A - Electromagnetic valve - Google Patents

Abstract

The invention provides an electromagnetic valve, of which the connection between a coil assembly and a valve seat thereof has high reliability, and the use is safer. The electromagnetic valve comprises a valve seat, a coil assembly and a connecting piece, wherein the connecting piece is connected with the coil assembly in a positioning way, the connecting piece comprises at least two oppositely arranged connecting portions, the valve seat comprises a plurality of joint parts tightly locked and cooperated with the connecting portions, and at least one of the joint parts is arranged on the opposite side of other joint parts. In the electromagnetic valve of the invention, the plurality of joint parts tightly locked and cooperated with the connecting portions of the connecting piece are arranged on the valve seat, and at least one joint part is arranged at the opposite side of the other joint parts, that is, the two sides of the electromagnetic valve are both provided with at least one connection point formed by tight locking of the connecting portion and the joint part, and the two sides of the electromagnetic valve are fixed; compared with the unilateral fixation in the prior art, the connection type of bilateral or multi-lateral fixation adopted by the electromagnetic valve is more stable, the connection reliability of the coil assembly and the valve seat is improved, and shake and noise during the use procedure are avoided.

Description

A kind of solenoid valve

Technical field

The present invention relates to control valve technical field, particularly relate to a kind of solenoid valve.

Background technique

Solenoid valve is mainly used in chiller plant, particularly in heat pump type air conditioner pipeline, is controlled break-make and the flow direction of refrigerant by the opening and closing of solenoid valve.

Please refer to Fig. 1, Fig. 1 is the perspective view of a kind of set-up mode of solenoid valve in prior art.

The patent No. be 201010579900.8 Chinese patent disclose a kind of solenoid valve, comprise valve seat 1 ' and coil block 2 ', wherein, coil block 2 ' is sleeved in housing 3 ', and the bottom surface of housing 3 ' is provided with bayonet socket, and is provided with locking member 4 ' by bayonet socket; The outer surface of valve seat 1 ' is provided with the recess 11 ' of spherical crown shape, locking member 4 ' has the spring sheet 41 ' of longitudinal extension, spring sheet 41 ' extends to valve seat 1 ' by coil block 2 ', and be provided with protuberance in the position corresponding with recess 11 ', locate to be formed to engage with recess 11 ', then coil block 2 ' and valve seat 1 ' are formed by locking member 4 ' and are connected, as shown in Figure 1.

In above-mentioned existing solenoid valve, locking member 4 ' is detachable connection with the clamping of valve seat 1 ', spring sheet 41 ' snaps in recess 11 ' with its protuberance, just as above-mentioned patent document specification described in, recess 11 ' is with the engaging of the protuberance with spring sheet 41 ' and remove the recess that the mode of being easy to is formed as more shallow spherical crown shape, the Placement of this One-Point Location is easy to get loose, namely locking member 4 ' is lower with the reliability of positioning of valve seat 1 ', reduces the connection reliability of coil block 2 ' and valve seat 1 '.

On the other hand, locking member 4 ' is arranged on the side of coil block 2 ' and valve seat 1 ', the requirement of Placement to locking member 4 ' of this one-sided location is higher, and be unfavorable for improving coil block 2 ' and the stability of valve seat 1 ', have impact on the reliability of positioning of coil block 2 ' and valve seat 1 '; Definition wires coil assembly 2 ' is above-below direction to the bearing of trend of valve seat 1 ', then the upper plane of the lower plane of coil block 2 ' and valve seat 1 ' is difficult to form complete laminating, so cause solenoid valve in use to produce rocking, noise etc.

Therefore, how designing a kind of solenoid valve, to improve the connection reliability of coil block 2 ' and valve seat 1 ', is the current technical issues that need to address of those skilled in the art.

Summary of the invention

The object of this invention is to provide a kind of solenoid valve, the connection reliability of its coil block and valve seat is higher, uses safer.

For solving the problems of the technologies described above, the invention provides a kind of solenoid valve, comprise valve seat, coil block and link, described link and coil block are located by connecting, described link comprises at least two joints be oppositely arranged, described valve seat has locks friction tight some connecting parts with described joint, and connecting part described at least one is in the offside of connecting part described in other.

In solenoid valve of the present invention, valve seat is provided with somely locks friction tight connecting part with the joint of link, and at least one connecting part is in the offside of other connecting parts, namely the both sides of solenoid valve all at least have the tie point of a joint and connecting part locking formation, and the both sides of solenoid valve are all fixed; With one-sided Stationary liquid ratio of the prior art, present invention employs the fixing Placement in bilateral or many sides more firm, improve the connection reliability of coil block and valve seat, avoid occurring in using process rocking and noise.

Preferably, described link has two described joints, described valve seat has connecting part described in even number, and described connecting part is symmetrical between two about the medial axis of described valve seat, and two symmetrically arranged described connecting parts are locked with the described joint radial direction of its homonymy respectively.

Can even number connecting part be set on valve seat, and connecting part is symmetrical between two, then symmetrically arranged connecting part forms an installation position, joint can select wherein a pair connecting part to connect, then after joint selects different installation positions and valve seat is fixed, different relative position relations can be presented, to adapt to different user demands between valve seat from coil block; Meanwhile, the joint of both sides is connected with connecting part and can be formed radially clamping force, with the location of auxiliary realization to coil block and valve seat, improves reliability of positioning.

Preferably, the both sides of described link have the side plate of upper downward-extension, and described side plate extrudes with the outside of its inner face and described valve seat and fits; The lower end of described side plate is to projecting inward or bending, and to form the described joint of projection or flanging state, the lower end of described valve seat is inwardly recessed and forms described connecting part.

The both sides of link extend to form side plate, thus extrude with valve seat and fit, and improve the reliability of location, avoid valve seat in use to produce and rock.

Preferably, described coil block comprises the shell for packaged battery magnetic coil, and described link and described shell are connected; Described valve seat runs through described electromagnetic coil with its plunger portion, and the end face of described plunger portion and the inner face of described shell support laminating.

Valve seat supports laminating with the inner face of the end face of its plunger portion and shell, carries out the spacing of above-below direction by face contact, avoids producing in valve seat using process teetertottering, reduces to use noise, improve stability in use.

Preferably, the wherein one of described link and described shell is provided with some buckles, is provided with some draw-in grooves in another one, described buckle and the corresponding clamping of draw-in groove.

Preferably, some described buckles are in same circumference, and some described draw-in grooves are in same circumference, and the center of circle of two circumference is all on the medial axis of described valve seat.

Some buckles can circumference distribution centered by the medial axis of valve seat, some draw-in grooves are correspondingly circumferentially shape distribution also, then, after buckle and draw-in groove form clamping, the connection of link and shell is more reliable, to carry out circumference location by link to valve seat, eliminate the destabilizing factor of one-sided location.

Preferably, described buckle and draw-in groove are even number, and buckle described in even number is in the diameter two ends of its circumference respectively, and draw-in groove described in even number is in the diameter two ends of its circumference respectively, so that by shell and link radial clamping.

Preferably, some described buckles turn down all inwardly, and some described draw-in grooves are all towards outward opening; Or some described buckles turn down all outwardly, some described draw-in grooves are all towards inner opening.

Preferably, described link is welded on the bottom surface of described shell.

Accompanying drawing explanation

Fig. 1 is the perspective view of a kind of set-up mode of solenoid valve in prior art;

Fig. 2 is the cross-sectional view of solenoid valve provided by the present invention in a kind of embodiment;

Fig. 3 is the worm's eye view of solenoid valve shown in Fig. 2;

The Facad structure schematic diagram of Fig. 4 link provided by the present invention;

The side structure schematic diagram that Fig. 5 is link shown in Fig. 4;

Fig. 6 is the worm's eye view of link shown in Fig. 4;

Fig. 7 is the side structure schematic diagram of shell provided by the present invention.

In Fig. 1:

1 ' valve seat, 11 ' recess, 2 ' coil block, 3 ' housing, 4 ' locking member, 41 ' spring sheet

In Fig. 2-7:

1 valve seat, 11 connecting parts, 12 plunger portion, 2 coil blocks, 21 electromagnetic coils, 22 shells, 3 links, 31 joints, 32 side plates, 4 buckles, 5 draw-in grooves

Embodiment

Core of the present invention is to provide a kind of solenoid valve, and the connection reliability of its coil block and valve seat is higher, uses safer.

In order to make those skilled in the art person understand the present invention program better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.

Please refer to Fig. 2 and Fig. 3, Fig. 2 is the cross-sectional view of solenoid valve provided by the present invention in a kind of embodiment; Fig. 3 is the worm's eye view of solenoid valve shown in Fig. 2.

In a kind of embodiment, solenoid valve of the present invention comprises valve body and coil block 2, and valve body has valve seat 1, is connected between coil block 2 with valve seat 1 by link 3, and link 3 and coil block 2 are located by connecting; Link 3 also comprises at least two joints 31, and at least two joints 31 are oppositely arranged, namely have at least two joints 31 to be in the both sides of link 3 respectively, the side of link 3 has at least one joint 31, and opposite side also has at least one joint 31; Valve seat 1 has can lock friction tight some connecting parts 11 with joint 31, an offside being in other connecting parts 11 is had at least in some connecting parts 11, namely a connecting part 11 and other connecting part 11 heteropleurals are had at least to arrange, so that all there is at least one connecting part 11 every side of valve seat 1.

Herein described some be that exponential quantity is uncertain, can be one, more than two or three, but consider that connecting part 11 is herein connected with joint 31, and joint 31 has at least two, therefore also should there is at least two basic change portion 11, can coordinate with joint 31.

Each connecting part 11 herein all can coordinate with joint 31, but connecting part 11 and joint 31 are not limited only to one_to_one corresponding, and that is, both quantity can be identical or different; During connection, the joint 31 being in side can be connected with the connecting part 11 of its homonymy, and the connecting part 11 of the joint 31 and its homonymy that are in opposite side is connected, so that valve seat 1 all can be connected location with the both sides of coil block 2, that is, as long as at least there are two tie points; Certainly, joint 31 and the connecting part 11 of more than three also can be set, multipoint positioning is carried out to coil block 2 and valve seat 1.

Described homonymy and offside are comparatively speaking, and stricti jurise is said, two sides being in the radial two ends of valve seat 1 form described offside, and described offside can with reference to above-mentioned definition, but be not limited only to proper completely relative herein; The circumference of valve seat 1 can be divided into some regions, namely the connecting part 11 be in the same area is in homonymy, and namely the connecting part 11 being in zones of different is in relative both sides; Obviously, if the region divided is too intensive, then the distance between two relative sides is less, substantially cannot Special composition be structural is oppositely arranged, therefore, the region divided is not easily too much, be advisable to be no more than 6, can distinguish with side region and contralateral regions.

Solenoid valve of the present invention, is provided with connecting part 11 at the offside of valve seat 1, and coil block 2 has been located by connecting link 3, then the joint 31 on link 3 can be connected with the connecting part 11 being in offside, realizes the location of coil block 2 and valve seat 1; Because connecting part 11 and joint 31 are in offside respectively, coil block 2 all can be fixed with the both sides of valve seat 1, compared with the one-sided location of prior art, solenoid valve of the present invention connects more reliable, the location of axial and circumferential can be carried out valve seat 1 and coil block 2, avoid producing in using process rocking and noise.

In a preferred embodiment, the both sides that two joints, 31, two joints 31 are oppositely arranged on link 3 can be set; Then arrange even number connecting part 11, even number connecting part 11 is symmetrical between two about the medial axis of valve seat 1, and that is, connecting part 11 arranges in pairs, and the line of often pair of connecting part 11 extends in the radial direction of valve seat 1.

Two joints 31 can be selected to be connected with wherein a pair connecting part 11, because often pair of connecting part 11 is distributed in the diverse location of valve seat 1, link 3 is fixed relative to the position relationship of coil block 2, then when joint 31 converts connected a pair connecting part 11, the position relationship of coil block 2 and valve seat 1 can be changed, to realize the installation of different amount, the Applicable scope of expansion solenoid valve.

The connecting part 11 of described even number is greater than 2 usually, installs to provide multi-angle; Certainly, be simplified structure, valve seat 1 also can arrange two basic change portion 11, two basic change portion 11 is oppositely arranged, so that corresponding with two joints 31, realizes the location of valve seat 1 and coil block 2.

Because the medial axis of often pair of connecting part 11 all about valve seat 1 is symmetrical, namely the two basic change portion 11 be oppositely arranged is in the radial two ends of valve seat 1, then can provide radial coupling mechanism force after connecting part 11 is connected with joint 31, the radial direction of valve seat 1 is locked, avoid valve seat 1 and coil block 2 diametrically to move, improve reliability of positioning.

In addition, when joint 31 is different from the quantity of connecting part 11, the installation of different amount can be realized, the number of joint 31 is also not limited to two, three or multiple can be arranged, then the interval between the number of corresponding adjustment connecting part 11 and two neighbouring bonds 11, so that joint 31 can combine with corresponding connecting part 11, realizes the installation of certain angle.

Please further refer to the Facad structure schematic diagram of Fig. 4-6, Fig. 4 link provided by the present invention; The side structure schematic diagram that Fig. 5 is link shown in Fig. 4; Fig. 6 is the worm's eye view of link shown in Fig. 4.

Joint 31 and connecting part 11 can adopt dismountable Placement, so that conversion setting angle.Such as, joint 31 can be groove with the one in connecting part 11, and another one can be snap close, so that both can lock or be separated; Or joint 31 and connecting part 11 can adopt dismountable Placements such as being spirally connected.

The axis of definition valve seat 1 is above-below direction, and coil block 2 is in the top of valve seat 1; Definition is in the middle axial direction of valve seat 1 is, the direction away from the medial axis of valve seat 1 is outward.

Particularly, the both sides of link 3 can be arranged the side plate 32 of upper downward-extension, side plate 32 extrudes with the outside of its inner face and valve seat 1 and fits, and applies certain radial clamping force to valve seat 1; Side plate 32 is arranged to projecting inward or bending with its lower end, and to form projection or flanging, described projection or flanging form above-mentioned joint 31; The lower end of valve seat 1 is inwardly recessed formation groove, the above-mentioned connecting part 11 of described groove mechanism, then the joint 31 of projection or flanging state snaps in described groove, forms clamping location.

Link 3 can comprise side plate 32 and joint 31, downward-extension on side plate 32, and forms pressing with valve seat 1, joint 32 and valve seat 1 clamping, then the upper and lower and radial direction of valve seat 1 is all fixed, and can not rock in using process, also would not because rocking generation noise.

Please refer to Fig. 7, Fig. 7 is the side structure schematic diagram of shell provided by the present invention.

On the basis of the above, coil block 2 can comprise electromagnetic coil 21 and the shell 22 for packaged battery magnetic coil 21, and link 3 and shell 22 are connected, and as shown in Figures 2 and 3, link 3 can be connected in the bottom surface of shell 22; Valve seat 1 has plunger portion 12, and plunger portion 12 runs through electromagnetic coil 21, and supports laminating with the inner face of its end face and shell 22, then the upper end of valve seat 1 is able to effective location.

For realizing running through of plunger portion 12, the lower end of shell 22 and the top of link 3 are equipped with mounting hole, so that plunger portion 12 lower end surface of through-connections 3, shell 22 and electromagnetic coil 21 successively from bottom to top, the inner face being finally in top with its end face and shell 22 supports laminating.

Valve seat 1 with its plunger portion 12 and the inner face of shell 22 support fit after spacing, the lower end of valve seat 1 is positioned by link 3, and whole valve seat 1 does not exist spacing difference substantially at above-below direction, can effectively avoid rocking in using process, reduction noise.

Link 3 can for removably connecting with the connection of shell 22, and such as, link 3 can arrange some buckles 4 with the wherein one of shell 22, and another one arranges some draw-in grooves 5, buckle 4 clamping corresponding to draw-in groove 5.

As shown in fig. 3 to 7, can some draw-in grooves 5 be set on link 3, to arrange two draw-in grooves 5, two draw-in grooves 5 can be in circumferentially same, and be circumferentially uniformly distributed at this, the center of circle of this circumference can be on the medial axis of valve seat 1, then offers the mounting hole run through for plunger portion 12 at circle centre position, as shown in Figure 2; Meanwhile, shell 22 is provided with some buckles 4, and buckle 4 is corresponding with draw-in groove 5, some buckles 4 also can source in circumferentially same, can be the incircle corresponding with the circumference at draw-in groove 5 place or circumcircle, so that buckle 4 and the clamping of draw-in groove 5 phase; Buckle 4 can coaxially be arranged with the circumference at draw-in groove 5 place, namely both centers of circle can all be on the medial axis of valve seat 1, then shell 22 offers mounting hole with link 3 in the position that above-below direction is corresponding, thus run through for the plunger portion 12 of valve seat 1, improve coaxality and the reliability of positioning of link 3 and shell 22, valve seat 1.

Further, the end face of link 3 can be set to discoid, to fit with the bottom surface of shell 22, simultaneously, discoid structure is convenient to buckle 4 or draw-in groove 5 is uniformly distributed along its circumference, to provide coupling mechanism force by shell 22 to all directions of valve seat 1, avoid local coupling mechanism force not enough and to cause valve seat 1 to produce crooked.

It will be understood by those skilled in the art that and link 3 can arrange multiple draw-in groove 5, be not limited to above-mentioned two, accordingly, the number of buckle 4 is also not limited to two; The setting position of buckle 4 and draw-in groove 5 can also be converted.

In addition, buckle 4 and draw-in groove 5 all can be set to even number, and even number buckle 4 can be in the diameter two ends of its place circumference respectively, i.e. buckle 4 between two a pair, and the line of often pair of buckle 4 all extends along the radial direction of its place circumference; In like manner, even number draw-in groove 5 also can a pair setting between two, be in the diameter two ends of its place circumference respectively, described diameter can be the arbitrary diameter of circumference, and be not same diameter, that is, the two ends of each diameter all can arrange draw-in groove 5, and the line of often pair of draw-in groove 5 also all extends along the radial direction of its place circumference.When after buckle 4 with draw-in groove 5 clamping, link 3 comparatively disperses with the tie point of shell 22, is convenient to provide and locates comparatively uniformly, avoids tie point too to concentrate the deviations caused.

In detail, as shown in Fig. 3,6 and Fig. 7, some buckles 4 can turn down all inwardly, and some draw-in grooves 5 can all towards outward opening, and buckle 4 is arranged on the outside of draw-in groove 5, so that buckle 4 inwardly press-in draw-in groove 5 formation locking; Some buckles 4 can also be turned down outwardly, buckle 4, to inner opening, is then arranged on the inner side of draw-in groove 5 by some draw-in grooves 5, so that buckle 4 is pressed into locking and positioning in draw-in groove 5 from inside to outside with its flange.

In addition, link 3 and shell 22 can also adopt non-removable positioning connection, and such as, link 3 can be welded on the bottom surface of shell 22, or by link 3 and shell 22 integrated injection molding.

Solenoid valve of the present invention, is connected coil block 2 with valve seat 1 by link 3, without the need to offering auxiliary hole on coil block 2, can effectively prevent salt fog, steam from directly entering valve body by shell 22; Valve body is directly fitted with shell 22 with its plunger portion 12, there is not the auxiliary hole affecting adhesive area, then the shell 22 of coil block 2 forms the magnet case of electromagnetic coil 21, magnetic conductive area can not be reduced because offering auxiliary hole, effectively can improve the suction-combining force of equal conditions lower coil, finally be presented as the raising of valve body performance; In addition link 3 pairs of coil blocks 2 and valve seat 1 carries out bilateral or many sides are located, improve reliability of positioning, avoid occurring in using process rocking and noise, thus improve valve body accuracy of action and flexibility.

Above solenoid valve provided by the present invention is described in detail.Apply specific case herein to set forth principle of the present invention and mode of execution, the explanation of above embodiment just understands core concept of the present invention for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.

Claims (9)

1. a solenoid valve, comprises valve seat (1), coil block (2) and link (3), and described link (3) and coil block (2) are located by connecting, and it is characterized in that,

Described link (3) comprises at least two joints be oppositely arranged (31), described valve seat (1) has locks friction tight some connecting parts (11) with described joint (31), and connecting part described at least one (11) are in the offside of connecting part described in other (11).

2. solenoid valve as claimed in claim 1, it is characterized in that, described link (3) has two described joints (31), described valve seat (1) has connecting part described in even number (11), and described connecting part (11) are symmetrical between two about the medial axis of described valve seat (1), two symmetrically arranged described connecting parts (11) are locked with described joint (31) radial direction of its homonymy respectively.

3. solenoid valve as claimed in claim 2, it is characterized in that, the both sides of described link (3) have the side plate (32) of upper downward-extension, and described side plate (32) extrudes with the outside of its inner face and described valve seat (1) and fits; The lower end of described side plate (32) is to projecting inward or bending, and to form the described joint (31) of projection or flanging state, the lower end of described valve seat (1) is inwardly recessed and forms described connecting part (11).

4. the solenoid valve as described in any one of claim 1-3, is characterized in that, described coil block (2) comprises the shell (22) for packaged battery magnetic coil (21), and described link (3) and described shell (22) are connected; Described valve seat (1) runs through described electromagnetic coil (21) with its plunger portion (12), and the end face of described plunger portion (12) and the inner face of described shell (22) support laminating.

5. solenoid valve as claimed in claim 4, it is characterized in that, the wherein one of described link (3) and described shell (22) is provided with some buckles (4), is provided with some draw-in grooves (5) in another one, described buckle (4) and draw-in groove (5) corresponding clamping.

6. solenoid valve as claimed in claim 5, it is characterized in that, some described buckles (4) are in same circumference, and some described draw-in grooves (5) are in same circumference, and the center of circle of two circumference is all on the medial axis of described valve seat (1).

7. solenoid valve as claimed in claim 6, it is characterized in that, described buckle (4) and draw-in groove (5) are even number, and buckle described in even number (4) is in the diameter two ends of its circumference respectively, and draw-in groove described in even number (5) is in the diameter two ends of its circumference respectively.

8. solenoid valve as claimed in claim 7, it is characterized in that, some described buckles (4) turn down all inwardly, and some described draw-in grooves (5) are all towards outward opening; Or some described buckles (4) turn down all outwardly, some described draw-in grooves (5) are all towards inner opening.

9. solenoid valve as claimed in claim 4, it is characterized in that, described link (3) is welded on the bottom surface of described shell (22).