CN208153819U

CN208153819U - A kind of electric four-way valve

Info

Publication number: CN208153819U
Application number: CN201820313665.1U
Authority: CN
Inventors: 贾培育
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-03-07
Filing date: 2018-03-07
Publication date: 2018-11-27
Anticipated expiration: 2028-03-07

Abstract

The utility model discloses a kind of electric four-way valves, by valve body（1）, upper cover（2）And lower cover（3）Three closes composition, inside sets spool（4）, spool（4）Surrounding is all provided with tetra- channels A.B.C.D, its main feature is that, the spool（4）Upper shaft and driving assembly（6）Export axis connection, spool（4）Upper shaft and upper cover（2）Between be equipped with sealing element；Driving assembly（6）Motor is arranged at top（14）, outside is upper cap（5）, motor（14）Extracting power supply cord, with upper cap（5）The terminal connections plate of upper end（15）It is connected；Upper cap（5）With upper cover（2）Pass through sealing element（21）It is sealed, spool（4）Set lid in lower end（3）, the two sealed connection；Sealed reliable plays the role of fighting impurity, while greatly reducing the internal leakage of valve.

Description

A kind of electric four-way valve

Technical field：

The utility model relates to fluids to flow to switching valve technical field, and specifically a kind of electric four-way valve can make Fluid flow direction changes；It is mainly used for the fields such as air-conditioning or freezer or chemical petroleum and carries out fluid switching, cooling and warming turns Change or be used to defrost.

Technical background：

Four-way valve is the core component in air conditioner refrigerating field, but existing four-way valve leakage rate is big, and anti-impurity ability is poor, Switch cumbersome, does not feed back etc., and fluid resistance is also very big.

Utility model content：

The purpose of the utility model is to overcome the deficiencies of above-mentioned prior art, and provide a kind of electric four-way valve；Main solution The problems such as certainly existing four-way valve leakage is big, and anti-impurity ability is poor and does not feed back.

The technical solution of the utility model is：A kind of electric four-way valve is made of valve body, upper cover and lower cover three closing, Spool is set in valve body, tetra- channels A.B.C.D are all provided with around valve body, is referred to as adapter tube；It is characterized in that, the spool A longitudinal cross-section be to lift one's head I-shaped structure up and down, transversal cross-section is ellipsoidal structure, and oval major diameter is in spool interval portion Position or spool are circle, but spool interval part is expanded, and diameter is bigger than at two shoulder of spool；Two shoulder of spool of the spool It is upper to be embedded with copper sheathing, there is interstitial hole on the upper lid, shaft is drawn from upper cover interstitial hole on spool, on spool in shaft and upper cover Between O-ring sealing and hard sealing are equipped between hole, and pass through clamp nut compression；Shaft and driving assembly are defeated on the spool Shaft is attached, and motor is set on driving assembly；Upper cap is set outside the driving assembly, upper cap is located on lid, is led to Sealing element is crossed to be sealed；The power supply line that the motor is drawn, is connected with the terminal connections plate of upper cap upper end；The valve Lid is set in body lower end, and the two is tightly connected.

Further, it drills on the copper sheathing on two shoulder of spool of the spool, hole is provided with lubrication sealing material.

Further, the spool interval part is provided with groove, is embedded with graphite or copper material in groove.

Further, gauge hole is set on the lower lid, gauge hole is through-hole or blind hole, fills sensing in gauge hole Device.

Further, there is hole in the spool lower surface, and positioning pin is set in hole, and lower cap upper surface is provided with fan angle Positioning ring groove, positioning pin move in positioning ring groove.

Further, output shaft position under output shaft position and spool on the spool, is equipped with bearing, bearing outer ring connects respectively Connect lower cover center.

Further, the driving assembly is shield electric machine or Magnetic Force Transmission Coupling, is driven.

Further, which is characterized in that the spool bottom sets visor.

Compared with the prior art a kind of electric four-way valve described in the utility model has a following good effect, 1, spool be Oval structure, leakage-gap position will become very little, to greatly reduced the internal leakage of valve；2, two shoulder position of spool It is inlaid with copper sheathing, and is drilled, equipped with lubrication sealing material in hole, ensure that spool and valve interior wall lubrication and leakproofness, together When confrontation impurity also have certain effect；3, due to the sealing twice of shaft and upper cover interstitial hole on spool, and valve body with Upper and lower covers are also sealing structure, to keep the sealing performance of this valve very good, and upper cap and upper cover also by sealing element into The sealing gone again, to ensure that the sealing reliability of this valve.

Detailed description of the invention：

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the valve core structure schematic diagram of the utility model；

Fig. 3 is 90 ° of structural schematic diagrams of Spool rotating of Fig. 2；

Fig. 4 is the structural schematic diagram of the spool embedding sealing material of the utility model；

Fig. 5 is that existing common spool generates leakage schematic diagram；

Fig. 6 is the oval valve core structure schematic diagram of the utility model；

Fig. 7 is that the spool interval of the utility model increases structural schematic diagram；

Fig. 8 is the lower cover structure schematic diagram of the utility model；

Fig. 9 is a kind of structural schematic diagram with shield electric machine of the utility model；

Figure 10 is another band visor band pipe connecting flange structural schematic diagram of the utility model；

Figure 11 is the structural schematic diagram that shaft is seperated with spool on the spool of the utility model.

Specific embodiment：

In order to better understand and implement, detailed description the utility model of embodiment is given with reference to the accompanying drawing；It is lifted Embodiment is only used for explaining the utility model, is not intended to limit the protection scope of the utility model.

Embodiment 1 according to the design needs, is processed into valve body 1, upper cover 2,3 and of lower cover referring to Fig. 1,2,3,4,6,7,11 Spool 4；By spool 4 inside valve body 1, it is all provided with tetra- channels A.B.C.D around valve body 1, is referred to as adapter tube 8, spool 4 one is longitudinal Section is to lift one's head I-shaped structure up and down, and the upper shaft 12 and spool of spool 4 can be integrated, is also possible to seperated； 4 transversal cross-section of spool is ellipsoidal structure, and oval major diameter is at 24 position of spool interval；Alternatively, since oval spool makes work Skill is comparatively laborious, so circle can also be made when processing in spool 4, but 24 part of spool interval is expanded, i.e., in spool It is greater than the diameter of two shoulder of spool, 23 position every 24 position diameters, the leakage rate of four-way valve can be greatly reduced in this way；In spool 4 Embedded with embedded with copper sheathing 7 on two shoulder 23 of spool；There is interstitial hole in upper cover 2, shaft is drawn from 2 interstitial hole of upper cover on spool 4, spool 4 Dress is taper hole there are two O-ring 10, the upper hole of upper cover 2 between 2 interstitial hole of upper shaft and upper cover, and inside is equipped with matched Hard sealing material 16, is compressed by clamp nut 17；Shaft on spool 4 and 6 output shaft of driving assembly are attached, driving group Motor 14 is installed on part 6；Upper cap 5 is installed outside driving assembly 6, upper cap 5 is mounted in upper cover 2, by sealing element 21 into Row sealing；The power supply line that motor 14 is drawn, is connected with the terminal connections plate 15 of 5 upper end of upper cap, terminal connections plate 15 and outside Control system connection；Lower cover 3 is installed in 1 lower end of valve body, the two is tightly connected；The shaft under output shaft position and spool 4 on spool 4 Position is equipped with bearing 9, and 9 outer ring of bearing is separately connected upper and lower covers center；By 3 three's closed group of valve body 1, upper cover 2 and lower cover At a kind of electric four-way valve of the utility model.

Embodiment 2, referring to fig. 4, the present embodiment also drill on the copper sheathing 7 on two shoulder 23 of the spool of spool 4, and hole depth is big In the thickness of copper sheathing 7, hole is provided with lubrication sealing material 13, most preferably graphite rod；It is provided with simultaneously in 24 part of spool interval recessed Slot, graphite or copper material are embedded in groove, and most preferably graphite bar 22 is unlikely to make spool 4 in the rotation by impurity It is stuck.

Embodiment 3, referring to Fig. 8, the present embodiment also has hole in 4 lower surface of spool, positioning pin 11 is installed in hole, in lower cover 3 Upper surface is provided with the positioning ring groove 25 with fan angle, and positioning ring groove 25 is 90 ° in Fig. 8, and positioning pin 11 is in positioning ring groove 25 It is mobile.

Embodiment 4, referring to Fig. 8,9, the present embodiment also installs magnetic patch 18 in 4 bottom end of spool；Sensing is also provided on lower cover 3 Device hole 20, gauge hole 20 are through-hole or blind hole, fill sensor 19 in gauge hole 20.

Embodiment 5, referring to Fig. 9, the present embodiment uses shield electric machine, installs housing outside 14 internal rotor 29 of motor 30,31 part of coil of motor 14 is external, in order to overhaul；It can also be driven with magnetic coupling.

Embodiment 6, referring to Figure 10, the present embodiment also installs visor 33 in 4 bottom of spool, has position instruction on spool 4 32, to pass through visor 33, it can be seen that the rotation situation of spool 4；The connection of adapter tube 8 uses the side of pipe connecting flange 34 simultaneously Formula, to keep piping connection more convenient.

A kind of electric four-way valve described in the utility model, when normal work, external control system keeps motor 14 logical After electricity, driving assembly 6 is driven to rotate, driving assembly 6 output shaft band movable valve plug 4 rotates, and positioning pin 11 also follows spool 4 to rotate, Since positioning pin 11 is in positioning ring groove 25, so then spool 4 just stops operating when spool 4 turns to scheduled annular groove angle, Magnetic patch 18 is had on spool 4 at this time, magnetic patch 18 while going to 19 position of sensor with the rotation of spool 4, and sensor 19 exports Signal in place, control system make motor 14 have a power failure, to complete first switching action；

When needing another state, control system makes the energization reversion of motor 14, and band movable valve plug 4 also inverts, when Spool 4 drives positioning pin 11 to go to another the preset position of positioning ring groove 25 simultaneously, the magnetic patch 18 that 4 lower surface of spool is equipped with Also go to the position of another sensor 19, sensor 19 export in place signal to external control system, external control system Motor 14 is set to have a power failure, to complete the switching of second state.

Referring to Fig. 5,6, usual situation lower channel A, B are high-pressure channels, and C, D are low-pressure channel, and which results in the work of spool 4 When, it is amesiality, since spool needs to rotate, so 4 diameter of spool is less than 1 diameter of bore of valve body, at this time if spool 4 For circle, then fluid leaks into low-pressure side by gap 26, results in many energy consumptions；And if spool 4 is oval structure, Then 26 position of leakage-gap will become very little, to greatly reduced the internal leakage of valve.

Claims

1. a kind of electric four-way valve, by valve body（1）, upper cover（2）And lower cover（3）Three closes composition, in valve body（1）Inside set spool （4）, valve body（1）Surrounding is all provided with tetra- channels A.B.C.D, is referred to as adapter tube（8）；It is characterized in that, the spool（4）It is one vertical It is I-shaped structure of lifting one's head up and down to section, transversal cross-section is ellipsoidal structure, and oval major diameter is in spool interval（24）Position, Or spool（4）For circle, but spool interval（24）Part is expanded, and diameter is than two shoulder of spool（23）Place is big；The spool（4） Two shoulder of spool（23）It is upper to be embedded with copper sheathing（7）, the upper cover（2）On have interstitial hole, spool（4）Upper shaft is from upper cover（2）In Between hole draw, spool（4）Upper shaft and upper cover（2）It is equipped with O-ring sealing and hard sealing between interstitial hole, and passes through clamp nut （17）It compresses；The spool（4）Upper shaft and driving assembly（6）Output shaft is attached, driving assembly（6）On set motor （14）；The driving assembly（6）Outside sets upper cap（5）, upper cap（5）It is located at upper cover（2）On, pass through sealing element（21）Into Row sealing；The motor（14）The power supply line of extraction, with upper cap（5）The terminal connections plate of upper end（15）It is connected；Described Valve body（1）Set lid in lower end（3）, the two sealed connection.

2. a kind of electric four-way valve according to claim 1, which is characterized in that the spool（4）Two shoulder of spool （23）On copper sheathing（7）Upper drilling, hole are provided with lubrication sealing material（13）.

3. a kind of electric four-way valve according to claim 1, which is characterized in that the spool interval（24）Part is provided with Groove is embedded with graphite or copper material in groove.

4. a kind of electric four-way valve according to claim 1, which is characterized in that the lower cover（3）On set gauge hole （20）, gauge hole（20）For through-hole or blind hole, gauge hole（20）Middle dress sensor（19）.

5. a kind of electric four-way valve according to claim 1, which is characterized in that the spool（4）There are hole, hole in lower surface Inside set positioning pin（11）, lower cover（3）Upper surface is provided with the positioning ring groove with fan angle（25）, positioning pin（11）In positioning ring groove （25）Middle movement.

6. a kind of electric four-way valve according to claim 1, which is characterized in that the spool（4）Upper output shaft position and Spool（4）Lower output shaft position is equipped with bearing（9）, bearing（9）Outer ring is separately connected upper and lower covers center.

7. a kind of electric four-way valve according to claim 1, which is characterized in that the driving assembly（6）For shielding electricity Machine or Magnetic Force Transmission Coupling, are driven.

8. a kind of electric four-way valve described according to claim 1 or 2 or 5 or 6, which is characterized in that the spool（4）Bottom If visor（33）.