CN200961709Y

CN200961709Y - Mini electromagnetic valve

Info

Publication number: CN200961709Y
Application number: CN 200620126944
Authority: CN
Inventors: 顾丰乐
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-10-20
Filing date: 2006-10-20
Publication date: 2007-10-17
Anticipated expiration: 2016-10-20

Abstract

The utility model relates to a mini electric magnetic valve, comprising a plastic sealing coil assembly, a pipe connection, a sliding part assembly and a head, wherein the plastic sealing coil assembly comprises coils rolled around a bone, a magnet guide mount connected with the bone, an inserter connected with the magnet guide mount and a plastic sealing layer coated outside, the pipe connection comprises a valve core tube, a Y shaped tee joint structure formed of a liquid inlet pipe and a liquid outlet pipe, the liquid inlet pipe and the liquid outlet pipe are respectively communicated with the valve core tube, the valve core tube of the pipe connection and the head are coaxially equipped inside the bone, sealed and connected, a sliding pillar assembly is equipped inside the valve core tube wherein the sliding pillar assembly comprises a sliding pillar, a sliding disk equipped between the sliding pillar and the valve gate end portion of the valve core tube and a spring equipped inside the axis hole of the sliding pillar, two ends of the spring are respectively equipped against the axis hole seat and the end portion of the head, and a liquid chamber is equipped between the sliding pillar and the valve core tube. The utility model has the features of a compact structure, a small volume, a reliable working performance, a good environmental adaptation and a long using life.

Description

Miniature electromagnetic valve

Technical field

The utility model relates to a kind of miniature electromagnetic valve that is used for the transmitting fluid medium.

Background technique

Solenoid valve is to come the reciprocating equipment to realize that flowing medium is carried of driven plunger or plunger with electromagnetic force, and it is long-pending little, simple in structure to have a valve body, reliable operation, low power consumption and other advantages.Present disclosed solenoid valve, be that coil that coiling is good is after the plastic packaging moulding, install with anchor ear and fix by external magnetic conduction, or directly carry out overall package with housing, behind coil electricity, produce alternating magnetic field and make plunger reciprocating, the flowing medium in the active chamber of valve body both sides is sucked and sends.Its circuit of the solenoid valve of existing structure is what to separate with magnetic circuit, liquid inlet pipe and drain pipe are separately positioned on the two ends of plunger, not only component are more, cause the valve body processed complex, the assembly technology complexity, and the spool pipeline needs to be tightly connected with liquid inlet pipe and drain pipe respectively the sealability of reduction solenoid valve, the working life of shortening solenoid valve.Secondly, at least one is structure open in usual for the liquid inlet pipe of solenoid valve and drain pipe, and the solenoid valve compression capability is little, and its coil is the individual layer sealing in addition, and the ability of being heated is not suitable for working in long-term or the rugged environment, so using scope is restricted.

Summary of the invention

The purpose of this utility model provides a kind of compact structure, and volume is little, functional reliability height, good environmental adaptability and the miniature electromagnetic valve that can increase the service life.

The further purpose of the utility model provides the good miniature electromagnetic valve of a kind of versatility.

The utility model is that the technological scheme that achieves the above object is: a kind of miniature electromagnetic valve, comprise plastic packaging coil block, pipe joint, slide post assembly and end socket, the inserted sheet that described plastic packaging coil block comprises the coil that is wound on the skeleton, be connected magnetic conduction support on the skeleton, join with the magnetic conduction support and be coated on outside plastic packaging layer; Described pipe joint constitutes Y shape three-port structure by spool sleeve pipe, liquid inlet pipe and drain pipe, and liquid inlet pipe and drain pipe communicate with the spool sleeve pipe respectively; The spool sleeve pipe of described pipe joint and end socket be coaxial to be arranged in the axis hole of skeleton and to be tightly connected, the slide post assembly is housed in the spool sleeve pipe, described slide post assembly comprises slide post, be arranged on the valve disc between the valve port end face of slide post and spool sleeve pipe and be installed in spring in the slide post axis hole, the two ends of spring withstand on respectively on the end face of boss and end socket, and are provided with sap cavity between slide post and the spool sleeve pipe.

The utility model is that the technological scheme that reaches above-mentioned further purpose is, described end socket interior edge face is provided with annular groove, and short-circuited conducting sleeve is housed in the annular groove.

The utility model adopts the advantage after the technique scheme to be: 1, solenoid valve of the present utility model only comprises plastic packaging coil block, pipe joint, slide post assembly and end socket, and pipe joint is whole Three way type structure, the component of solenoid valve have been significantly reduced, because pipe joint and valve seal are simple and reliable for structure, simple in structure, assembly technology is reasonable, suitable production line production in enormous quantities.2, the plastic packaging coil block of the utility model solenoid valve is fixed together coil, skeleton and magnetic conduction support by isolation layer, because circuit and magnetic circuit are overall structure, make electromagnetic valve structure compact and reasonable more, further reduce the volume of solenoid valve, be fit to the demanding product of space mounting.Moreover because coil adopts the double hyer insulation protection, coil bearing temperature height has improved the solenoid valve functional reliability, makes solenoid valve can work good environmental adaptability in rugged environment.3, the slide post assembly be made up of slide post, valve disc and spring of the utility model to be to constitute the one-way valve structures of stability, under electromagnetic force and spring force effect, by this one-way valve can to the pipeline inner fluid carry out break-make control, control convenient and reliable.4, its liquid inlet and outlet pipe of solenoid valve of the present utility model is the Normally closed type structure, therefore can bear great positive pressure, and is applied widely.5, the utility model pipe joint is installed in a side of valve body, and under the constant situation of hold-in winding, the liquid inlet and outlet tube side of pipe joint when pipe joint is equipped with different apertures, can satisfy the control requirement in the different flow scope to adjusting arbitrarily by customer requirement.6, the utility model is equipped with short-circuited conducting sleeve on the end socket interior edge face, when the input AC sinusoidal voltage, can realize the effect of one way rectifier by short-circuited conducting sleeve, the effect that makes alternating magnetic fields be created in short-circuited conducting sleeve produces the electromagnetic force of constant direction down, therefore solenoid valve of the present utility model can not only insert DC electrical source, but also be applicable to ac power supply, improve the versatility of part greatly.

Description of drawings

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

Fig. 1 is the structural representation of the utility model miniature electromagnetic valve when closing.

Fig. 2 is the structural representation of pipe joint.

Structural representation when Fig. 3 is the utility model micro electromagnetic opening of valves.

Wherein: 1-end socket, 1-1-annular groove, 2-locking nut, 3-magnetic conduction support, the 4-skeleton, 5-seal ring, 6-coil, 7-plastic packaging layer, the 8-pipe joint, 8-1-drain pipe, 8-2-liquid inlet pipe, 8-3-valve port, 8-4-spool sleeve pipe, 8-5-inlet opening, 9-valve disc, 10-slide post, the 10-1-plane, 10-2-notch, 10-3-boss, 11-earth tag, the 12-spring, 13-short-circuited conducting sleeve, 14-inserted sheet.

Embodiment

See miniature electromagnetic valve of the present utility model shown in Fig. 1,3, comprise plastic packaging coil block, pipe joint 8, slide post assembly and end socket 1.Plastic packaging coil block of the present utility model comprises coil 6, magnetic conduction support 3, inserted sheet 14 and the plastic packaging layer 7 that is wound on the skeleton 4, magnetic conduction support 3 is connected with the two ends of skeleton 4, inserted sheet 14 is connected with magnetic conduction support 3, for making solenoid valve have good safety performance, one earth tag 11 is connected with

magnetic conduction support

3,7 on plastic packaging layer is coated on the outside of skeleton 4, coil 6 and magnetic conduction support 3, and magnetic conduction support 3 and coil 6 are fixed on inside, makes solenoid valve volume miniaturization.See shown in Fig. 1,2, pipe joint 8 of the present utility model constitutes Y shape three-port structure by spool sleeve pipe 8-4, liquid inlet pipe 8-2 and drain pipe 8-1, spool sleeve pipe 8-4 one end is provided with valve port 8-3, valve port 8-3 communicates with drain pipe 8-1, spool sleeve pipe 8-4 communicates with inlet opening 8-5, and valve port 8-3 and inlet opening 8-5 are obstructed mutually, owing to liquid inlet pipe 8-2 communicates with spool sleeve pipe 8-4 respectively with drain pipe 8-1, so the break-make that can come the control flows body medium by the switching of control valve port 8-3.See shown in Figure 1, pipe joint 8 its spool sleeve pipe 8-4 of the present utility model and end socket 1 be coaxial to be arranged in the axis hole of skeleton 4, and be tightly connected by seal ring 5, when end socket 1 adopts bolt, can be screwed on the spool sleeve pipe 8-4,5 of seal rings are positioned at spool sleeve pipe 8-4 port and realize sealing, and the outside of end socket 1 is connected with locking nut 2.See shown in Figure 1, the slide post assembly is installed in the spool sleeve pipe 8-4, this slide post assembly comprises slide post 10, valve disc 9 and spring 12, valve disc 9 is arranged between the end face of valve port 8-3 of slide post 10 and spool sleeve pipe 8-4, this valve disc 9 can be by end face and valve port 8-3 end joined and close port 8-3, it can also be the protruding axle that valve disc 9 is provided with the band tapering, protruding axle cooperates close port 8-3 with valve port 8-3 aperture, for making valve disc 9 in the course of the work, can not move, the end of slide post 10 is provided with notch 10-2, valve disc 9 is installed in this notch 10-2, move axially with slide post 10, spring 12 is installed in slide post 10 axis holes, the two ends of spring 12 withstand on the end face of boss 10-3 and end socket 1 respectively, and be provided with sap cavity between slide post 10 and the spool sleeve pipe 8-4, see shown in Figure 1, slide post 10 is axially arranged with plane 10-1 along it, or slide post 10 is axially arranged with two planes of symmetry along it, also can be provided with a concave arc surface at least at slide post 10 less than its diameter, slide post 10 can be moved axially in spool sleeve pipe 8-4, but also has bigger sap cavity, under the effect of electromagnetic force, make slide post assembly axial action, realize the break-make of pipeline inner fluid medium is controlled.

The utility model can not only carry out work under DC electrical source, can also satisfy under the alternating current (a.c.) situation and work on, see shown in Figure 1, end socket 1 interior edge face is provided with annular groove 1-1, short-circuited conducting sleeve 13 is housed in the annular groove 1-1, encircle the effect that realizes one way rectifier by short circuit 13, the effect that makes alternating magnetic fields be created in short-circuited conducting sleeve 13 produces the electromagnetic force of constant direction down, improves the versatility of part.

See shown in Figure 1, state when being solenoid valve access failure power supply, this moment, liquid stream entered into the spool sleeve pipe 8-4 inside of pipe joint 8 by liquid inlet pipe 8-2, and around slide post 10, reach hydraulic balance, and valve disc 9 is under the effect of suppressing of spring 12, withstand on the valve port 8-3 place of spool sleeve pipe 8-4, valve disc 9 close port 8-3, this moment, liquid inlet pipe 8-2 and drain pipe 8-1 were by not conducting.See shown in Figure 3, when solenoid valve is connected DC electrical source or is passed through the external AC power supply of inserted sheet 14 external voltage rating frequencies, coil 6 energisings of solenoid valve, produce magnetic field around the coil 6, slide post 10 overcomes the elastic force of spring 12 and is pull-in on the end face of end socket 1 under the action of a magnetic field, valve disc 9 also moves with slide post 10, and this moment, valve port 8-3 opened, liquid flows out through drain pipe 8-1 by spool sleeve pipe 8-4 is inner, make liquid inlet pipe 8-2 and drain pipe 8-1 respectively with spool sleeve pipe 8-4 conducting.

Claims

1, a kind of miniature electromagnetic valve, it is characterized in that: comprise plastic packaging coil block, pipe joint (8), slide post assembly and end socket (1), the inserted sheet (14) that described plastic packaging coil block comprises the coil (6) that is wound on the skeleton (4), be connected magnetic conduction support (3) on the skeleton (4), join with magnetic conduction support (3) and be coated on outside plastic packaging layer (7); Described pipe joint (8) constitutes Y shape three-port structure by spool sleeve pipe (8-4), liquid inlet pipe (8-2) and drain pipe (8-1), and liquid inlet pipe (8-2) and drain pipe (8-1) communicate with spool sleeve pipe (8-4) respectively; The spool sleeve pipe (8-4) of described pipe joint (8) and end socket (1) be coaxial to be arranged in the axis hole of skeleton (4) and to be tightly connected, in the spool sleeve pipe (8-4) the slide post assembly is housed, described slide post assembly comprises slide post (10), be arranged on the valve disc (9) between valve port (8-3) end face of slide post (10) and spool sleeve pipe (8-4) and be installed in spring (12) in slide post (10) axis hole, the two ends of spring (12) withstand on respectively on the end face of boss (10-3) and end socket (1), and are provided with sap cavity between slide post (10) and the spool sleeve pipe (8-4).

2, miniature electromagnetic valve according to claim 1 is characterized in that: described end socket (1) interior edge face is provided with annular groove (1-1), and short-circuited conducting sleeve (13) is housed in the annular groove (1-1).

3, miniature electromagnetic valve according to claim 1 and 2 is characterized in that: described end socket (1) is screwed on the spool sleeve pipe (8-4), and seal ring (5) is positioned at spool sleeve pipe (8-4) port, and the outside of end socket (1) is connected locking nut (2).

4, miniature electromagnetic valve according to claim 1 is characterized in that: described slide post (10) axially is provided with a plane (10-1) at least or has a concave arc surface less than slide post (10) diameter at least along it.

5, according to claim 1 or 4 described miniature electromagnetic valves, it is characterized in that: the end of described slide post (10) is provided with notch (10-2), and valve disc (9) is arranged in this notch (10-2).

6, miniature electromagnetic valve according to claim 1 is characterized in that: the valve port (8-3) of described spool sleeve pipe (8-4) communicates with drain pipe (8-1), and the inlet opening (8-5) of spool sleeve pipe (8-4) communicates with liquid inlet pipe (8-2).