CN201747960U

CN201747960U - Rotary multipath switching valve

Info

Publication number: CN201747960U
Application number: CN2010205084439U
Authority: CN
Inventors: 裘慧祥; 王伟伟
Original assignee: SHANGHAI YUANQUAN ELECTRIC TECHNOLOGY Co Ltd
Priority date: 2010-08-25
Filing date: 2010-08-25
Publication date: 2011-02-16
Anticipated expiration: 2020-08-25

Abstract

The utility model discloses a rotary multipath switching valve which is driven by a stepping motor and comprises an outer cover, a shaft, a rotor and a valve seat at the lower part of the rotor, wherein the rotor is sleeved on the shaft, the lower end surface of the rotor is provided with a slide block which is driven to rotate together with the rotor by the stepping motor, valve ports communicated with inlet and outlet connecting pipes are arranged on a plurality of concentric circumferences on the upper end surface of the valve seat, at least two valve ports are arranged on the same radial direction, and one or more valve ports are arranged on each circumference; and the axial bottom end surface of the slide block is provided with at least two boss planes which have different radii and are in sealed fit with the corresponding valve ports, the upper end surface of the slide block is provided with a pressure spring, and the upper end of the pressure spring is sleeved in the lower end of the rotor. The rotary multipath switching valve can conduct switch control a plurality of valve ports at the same time when the valve core stays in a certain angle, so as to realize the combination of various states for the refrigerant.

Description

The rotary type multi-way switching valve

Technical field

The utility model relates to a kind of rotary type multi-way switching valve, and it is mainly used in the high end home use in refrigerator refrigeration system, the different flow directions and the size of control refrigeration agent.

Background technique

Along with improving constantly of quality of life, the high end home refrigerator is required to realize control of multi-region section temperature and the soft Refrigeration Technique that food is insured more, existing two-bit triplet refrigerator solenoid valve can't satisfy above-mentioned requirements, existing two-bit triplet refrigerator solenoid valve is driven by electromagnetic coil, the spool straight line motion has only two working positions can't realize the multichannel multiposition control, the valve port hole of the rotating solenoid valve of other structure likeness in form is distributed on the circumference of same diameter, a valve port state so just can only be set on identical angle of swing, therefore restricted the setting of valve port quantity, control way and state of a control are reduced, can't realize combination refrigerator refrigerant various control state.

The model utility content

The purpose of this utility model is to propose a kind ofly can to realize the more rotary type multi-way switching valve of the conversion of multichannel number in identical angle of swing, and it can solve problems of the prior art.

The utility model can be solved by the following technical solutions:

A kind of rotary type multi-way switching valve, it is by step motor drive, comprise outer cover, axle, rotor, and the valve seat of rotor bottom, described rotor is nested with on axle and in this rotor lower end surface and is provided with slide block, this slide block rotates with rotor under described step motor drive, a plurality of concentric circumferences of described valve seat upper-end surface are provided with and pass in and out the valve port that connecting tube communicates, and at least 2 valve ports in same footpath upwards, and one or more valve ports are set on each circumference, the axial bottom end of described slide block be provided with at least 2 different radiis and with the boss plane of wherein corresponding described valve port coupling sealing, and the upper-end surface of described slide block is provided with a stage clip, and be inserted in the described rotor lower end this stage clip upper end.

Slide block described in the utility model center is the equilateral hexagon hole, the axle coupling assembling one of itself and hexgonal structure.

It around the equilateral hexagon hole of upper end of slide block face described in the utility model the pit of fixing described stage clip.

Circular arc type is adopted on boss described in the utility model plane, and its arc length is corresponding with the position of described valve port.

Owing to adopt above technological scheme, rotary type multi-way switching valve of the present utility model adopts step motor drive, the motion mode of rotation, can be in arbitrarily angled stop, because at least 2 valve ports make progress (radius does not wait, and angle is identical) in the same footpath that is arranged on concentric in the control valve port of this new structure, therefore when spool rests on a certain position, can carry out switch control simultaneously to a plurality of valve ports, realize the combination of refrigeration agent various states.

Description of drawings

The utility model is described in further detail with embodiment with reference to the accompanying drawings below:

Fig. 1 is the structural representation of the utility model rotary type multi-way switching valve;

Fig. 2 is provided with schematic representation for valve port position in the utility model rotary type multi-way switching valve;

Fig. 3 is a upper end of slide block face structural representation in the utility model rotary type multi-way switching valve;

Fig. 4 is a slide block lower end surface structural representation in the utility model rotary type multi-way switching valve.

1 outer cover among the figure; 2 rotors; 3 stage clips; 4 slide blocks; 5 valve seats; 6 connecting tubes; 7; 8 valve ports; A equilateral hexagon projection; B boss plane; The c pit

Embodiment

As shown in Figure 1, a kind of rotary type multi-way switching valve, comprise outer cover 1, axle 7, rotor 2, and the valve seat 5 of rotor bottom, rotor 2 is nested with on axle 7 and in these rotor 2 lower end surfaces and is provided with slide block 4, a plurality of concentric circumferences of valve seat 5 upper-end surfaces are provided with and pass in and out the valve port 8 that connecting tube 6 communicates, and at least 2 valve ports in same footpath upwards, and one or more valve ports are set on each circumference, the axial bottom end of slide block 4 be provided with at least 2 different radiis and with the boss plane b of wherein corresponding valve port coupling sealing, this boss level guarantees that smooth and easy the flowing of refrigerant gets final product, and radially be provided with the boss shear lug, this switching valve adopts step motor drive, the rotating magnetic field masterpiece that the stepper motor electronic coil produces is used for rotor 2, rotor 2 also passes to coupled slide block 4 with moment of rotation and drives slide blocks 4 and rotate together, and the upper-end surface of slide block 4 is provided with one and guarantees the stage clip 3 that slide block 4 contacts with valve seat 5 tightness, be inserted in rotor 2 lower ends stage clip 3 upper ends, the other end is pushed down slide block 4 and is guaranteed that the slide block boss contacts with valve seat 5 sealing surfaces, makes valve port 8 sealings under the effect of spring force.

Rotary type multi-way switching valve of the present utility model adopts step motor drive, the motion mode of rotation, and can be in arbitrarily angled stop, owing to wherein have at least the valve port that 2 radiuses do not wait, angle is identical to be arranged on the concentric circle, therefore as shown in Figure 2, when the spool of this switching valve rests on a certain position, promptly open the covering that valve angle carries out many valve ports 8 same, a plurality of valve ports 8 are carried out switch control simultaneously, realize the combination of refrigeration agent various states.

As shown in Figure 3, slide block 4 centers are equilateral hexagon hole a in the present embodiment, the axle coupling assembling one of itself and hexagonal structure; Around the equilateral hexagon hole a of slide block 4 upper-end surfaces is the pit c of fixedly stage clip 3.

As shown in Figure 4, circular arc type is adopted on the boss plane in the present embodiment, arc length is by valve port position correspondence, the quantity of this boss plane b is the temperature-controlled area section decision of refrigerator by the way of needs control, its shape is according to the traffic requirement of refrigerator refrigerant, decision has promptly realized the combination of various states to the Push And Release state on every road.

The manufacturing of slide block is by single injection-moldeds such as nonmetallic material such as nylon, polyoxymethylene, PPS, to guarantee the conformity of accessory size in the utility model; The boss plane is adopted finish turning to step up and is milled and guarantees its sealability; Outer cover adopts the stainless steel manufacturing of extending; Valve seat adopts the stainless steel metal manufacturing, and the valve port machining hole adopts boring, plane finish turning; Rotor adopts neodymium iron boron or ferrite die casting to make; Externally connected pipe adopts the TP2 copper tube to be connected with stainless steel hard soldering.

But above-mentioned embodiment is exemplary, is to be the restriction that this patent is comprised scope in order better to make those skilled in the art can understand this patent, can not to be interpreted as; So long as according to spirit that this patent discloses done anyly be equal to change or modify, all fall into the scope that this patent comprises.

Claims

1. rotary type multi-way switching valve, it is by step motor drive, comprise outer cover, axle, rotor, and the valve seat of rotor bottom, described rotor is nested with on axle and in this rotor lower end surface and is provided with slide block, this slide block rotates with rotor under described step motor drive, it is characterized in that: a plurality of concentric circumferences of described valve seat upper-end surface are provided with and pass in and out the valve port that connecting tube communicates, and at least 2 valve ports in same footpath upwards, and one or more valve ports are set on each circumference, the axial bottom end of described slide block be provided with at least 2 different radiis and with the boss plane of wherein corresponding described valve port coupling sealing, and the upper-end surface of described slide block is provided with a stage clip, and be inserted in the described rotor lower end this stage clip upper end.

2. rotary type multi-way switching valve according to claim 1 is characterized in that: described slide block center is the equilateral hexagon hole, the described axle coupling assembling one of itself and hexgonal structure.

3. rotary type multi-way switching valve according to claim 2 is characterized in that: be the pit of fixing described stage clip around the equilateral hexagon hole of described upper end of slide block face.

4. rotary type multi-way switching valve according to claim 1 is characterized in that: circular arc type is adopted on described boss plane, and its arc length is corresponding with the position of described valve port.