CN2918916Y - High capacity four-way change-over valve - Google Patents
High capacity four-way change-over valve Download PDFInfo
- Publication number
- CN2918916Y CN2918916Y CN 200620123918 CN200620123918U CN2918916Y CN 2918916 Y CN2918916 Y CN 2918916Y CN 200620123918 CN200620123918 CN 200620123918 CN 200620123918 U CN200620123918 U CN 200620123918U CN 2918916 Y CN2918916 Y CN 2918916Y
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- valve
- valve port
- port
- way change
- over
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- Expired - Lifetime
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Abstract
The utility model relates to a large-capacity four-way reversing valve, which is applied to a heat pump air conditioning, and comprises a main valve and a pilot valve controlling the main valve to reverse, the main valve comprises a cylinder and a reversing piston moved in the cylinder, wherein the pilot valve is an electromagnetic four-way reversing valve, which comprises a four-way reversing valve and an electromagnetic guide valve controlling the four-way reversing valve. The large-capacity four-way reversing valve of the utility model has the advantages of low resistance of the fluid flow, uneasy leakage, and reliable conversion in service. In addition, the guide valve of the utility model can be replaced by the four-way reversing valve of domestic air conditions, which is easy to implementation.
Description
Technical field
The utility model relates to and changes refrigerant flow direction in the heat pump type air conditioner, realizes refrigeration, heats the big capacity four-way change-over valve of switching.
Background technique
Big capacity four-way change-over valve is set in the heat pump type air conditioner, be used for changing the flow direction of refrigeration agent, realize freezing, heating the purpose of switching, usually big capacity four-way change-over valve is made of the pilot valve 20 that main valve 10 and control main valve commutate, and its structure as shown in Figure 1 and Figure 2.Wherein the main valve 10 of this big capacity four-way change-over valve is made of cylindrical shell 110 and reversing piston 120.This cylindrical shell 110 is sealed at both ends end cap 131,132, and cylindrical shell 110 is provided with the first main valve valve port 111, the second main valve valve port 113, the 3rd main valve valve port 115 and the 4th main valve valve port 117, and these four main valve valve ports are crosswise and are arranged on the cylindrical shell 110.
As shown in Figure 3, reversing piston 120 is arranged in the cylindrical shell 110, this cylindrical shell 110 is provided with first separate space 121,121 ' and second separate space 122,122 ' that separates vertically, first separate space is made up of two-part cavity 121,121 ' that radially separates, and second separate space is made up of two-part cavity 122,122 ' that radially separates.As shown in Figure 3, this reversing piston 120 offers through hole 124, this through hole 124 communicates with the two ends of reversing piston 120 respectively, be provided with steel ball seat 123 and two steel ball 125 in the through hole 124, this through hole 124 communicates with radial direction through hole 128 by steel ball seat 123, and this steel ball seat 123 is fixing by compressor arm 126 and fastening screw trip bolt 127.Steel ball seat 123, two steel ball 125 play the servo-actuated one-way valve in system, the flow direction of control reversing piston internal gas realizes that the high pressure side is communicated with, and low voltage side is closed, and to the high pressure side fast aeration, make height pressure reduction set up fast with pilot valve.
It more than is the basic system of big capacity main valve of four-way reversing valve, when the reversing piston two ends produce pressure difference, reversing piston will move, when first separate space 121 of reversing piston was positioned at main valve valve port position, the first main valve valve port and the 4th main valve valve port were communicated with by first separate space 121 and the second main valve valve port and the 3rd main valve valve port communicate by first separate space 121 '; When second separate space 122 of reversing piston is positioned at main valve valve port position, the first main valve valve port is connected by second separate space 122 ' with the second main valve valve port and the 4th main valve valve port and the 3rd main valve valve port are communicated with by second separate space 122, this shows, when chiller plant (mainly comprising condenser, vaporizer) is connected between the second main valve valve port and the 4th main valve valve port, promptly can realize the change of refrigerant flow direction realizing refrigeration, the purpose that heats by the position that changes reversing piston.In addition, when the first main valve valve port is connected with the outlet of compressor and the 3rd main valve valve port when being connected with the suction side of compressor, can realize the circulation of refrigeration agent.
But of the prior artly there is a following problem: the pilot valve complex structure of big capacity four-way change-over valve, poor reliability, and the pilot valve internal leakage can not effectively control, and influenced the commutation of main valve, so the pilot valve of the big capacity four-way change-over valve of this structure is further improved.
The model utility content
The utility model purpose is on the basis of existing technology, and the big capacity four-way change-over valve that provides a kind of pilot valve to improve makes the working stability of this big capacity four-way change-over valve, and the commutation of main valve is reliable.
In order to achieve the above object, the big capacity four-way change-over valve of the utility model, be to be used for heat pump type air conditioner, it comprises the pilot valve of main valve and this main valve commutation of control, this main valve comprises cylindrical shell and the reversing piston that can move in this cylindrical shell, wherein, this pilot valve is the electromagnetism four-way change-over valve, and this electromagnetism four-way change-over valve comprises the electromagnetism pilot valve of four-way change-over valve and control four-way change-over valve.
Preferably, above-mentioned electromagnetism pilot valve comprises electromagnet and valve body; This electromagnet is made of electromagnetic coil, armature and spring; This valve body is provided with slide, guiding valve and first valve port; This slide offers second valve port, the 3rd valve port, the 4th valve port; This guiding valve is connected with this armature and is arranged on movably on this slide, and connects second, third valve port under the electromagnetic coil off-position, connects the 3rd, the 4th valve port under the electromagnetic coil "on" position; This four-way change-over valve comprises valve body, and this valve body one side is provided with first piston, opposite side is provided with second piston, and between first, second piston and with the slide block valve of first, second piston interlock; Also be provided with valve seat and the 5th valve port on this valve body, this valve seat is provided with the 6th valve port, the 7th valve port and the 8th valve port; Wherein, constitute first cavity between this first piston and the valve body, constitute second cavity between this second piston and the valve body; Be connected by first capillary tube between this first cavity and this second valve port, be connected by second capillary tube between this second cavity and the 4th valve port, this first valve port is communicated with the 5th valve port by three capillary, and the 3rd valve port is communicated with the 7th valve port by the 4th capillary tube; Wherein, in the 5th valve port, be connected with high-pressure liquid and under this electromagnetic coil off-position, this slide block valve is connected the 6th valve port and the 7th valve port; Under this electromagnetic coil "on" position, this sliding shutter is connected the 7th, the 8th valve port.
Preferably, above-mentioned main valve is provided with the first main valve valve port, the second main valve valve port, the 3rd main valve valve port and the 4th main valve valve port, this first, second, third, fourth main valve valve port is cross and is arranged on the barrel wall, this first main valve valve port is that high-pressure refrigerant flows into end, the 3rd main valve valve port is connected with the suction side of compressor, the 5th valve port of this electromagnetism four-way change-over valve is communicated with the first main valve valve port, and the 7th valve port of this electromagnetism four-way change-over valve is communicated with the 3rd main valve valve port.
Preferably, the two ends of above-mentioned reversing piston and this cylindrical shell constitute the first side cavity and the second side cavity respectively, and this first side cavity is communicated with the 6th valve port, and this second side cavity is communicated with the 8th valve port.
Preferably, above-mentioned reversing piston is to be provided with first separate space and second separate space on solid body and its outer circumferential face side by side.
Preferably, the pilot valve of above-mentioned big capacity four-way change-over valve is the domestic air conditioning four-way change-over valve.
Because the pilot valve of the big capacity four-way change-over valve of the utility model is the electromagnetism four-way change-over valve, and the 5th valve port of this electromagnetism four-way change-over valve, the 7th valve port (turnover valve port) directly are connected with system high pressure side, system low-voltage side, and first cavity of electromagnetism four-way change-over valve, second cavity directly communicate with system high pressure side, system low-voltage side, thereby the fluid flow resistance is little, fluid pressure loss is less, be not easy to leak, and the maintenance of the pressure difference of first, second cavity is stable, thereby in use commutation is reliable.And the pilot valve of the big capacity four-way change-over valve of the utility model can replace with the domestic air conditioning four-way change-over valve, thereby is convenient to implement.
Should be appreciated that above generality is described and the following detailed description is all enumerated and illustrative, purpose is in order to provide further instruction to claimed the utility model.
Other features and advantages of the utility model provide in explanation subsequently, partly can be apparent from the description, and maybe can find out from enforcement of the present utility model.The purpose of this utility model and other advantage can be understood, obtain from the structure that following written explanation, claim and accompanying drawing provide especially.
Description of drawings
The accompanying drawing of forming the part of this specification helps further to understand the utility model, and these accompanying drawings illustrate embodiment of the present utility model, and can be used for illustrating principle of the present utility model with specification.In the accompanying drawing:
Fig. 1 is the front view of the big capacity four-way change-over valve of prior art;
Fig. 2 is the left view of the big capacity four-way change-over valve of prior art;
Fig. 3 is the sectional view of reversing piston of main valve of the big capacity four-way change-over valve of prior art;
Fig. 4 is a stereoscopic schematic representation of the present utility model;
Fig. 5 is the pilot valve of the big capacity four-way change-over valve of the utility model, and this pilot valve is the electromagnetism four-way change-over valve;
Fig. 6 is the "on" position fundamental diagram of the big capacity four-way change-over valve of the utility model; And
Fig. 7 is the off-position fundamental diagram of the big capacity four-way change-over valve of the utility model.
Embodiment
Followingly describe big capacity four-way change-over valve of the present utility model in detail with reference to accompanying drawing.
As shown in Figure 4, stereoscopic schematic representation for the big capacity four-way change-over valve of the utility model, this big capacity four-way change-over valve is mainly used in the heat pump type air conditioner, it comprises main valve 10 and pilot valve 20, this pilot valve 20 is the electromagnetism four-way change-over valve, and this electromagnetism four-way change-over valve comprises electromagnetism pilot valve 30 and four-way change-over valve 40.
As shown in Figure 5, this electromagnetism pilot valve 30 comprises electromagnet 310 and valve body 320, and this electromagnet 310 mainly comprises electromagnetic coil 311, armature 312 and spring 314.This valve body 320 is provided with first valve port 341 that comprises valve seat 322, guiding valve 321 and be arranged on valve body 320.Valve seat 322 is provided with second valve port 342, the 3rd valve port 343, the 4th valve port 344.Guiding valve 321 selectively is communicated with second, third valve port or the 3rd, the 4th valve port is communicated with for being buckled on the valve seat 322, and guiding valve 321 links together by link 323 with armature 312.Armature 312 is sleeved in the sleeve pipe 316 movably, and is subjected to pushing against of spring 314 and moves to left and drive guiding valve to connect second, third valve port.When electromagnetic coil 311 energising, magnetic force attracts armature 312 to overcome elastic force to move right, drive guiding valve and connect the 3rd, the 4th valve port.
Four-way change-over valve 40 comprises valve body 400, valve body 400 is made of the two end cap 402,403 of cylinder body 401 and sealed cylinder block 401, two ends in the valve body 400 are provided with the first piston 431 and second piston 435, first piston 431 constitutes first cavity 421 with valve body one end, second piston and valve body opposite side constitute second cavity 425, also be provided with slide block valve 433 between first, second piston, slide block valve 433 links together with first, second piston, forms the relation of interlock.Also be equiped with valve seat 407 on the valve body, offer the 5th valve port 411 on the valve body wall relative with valve seat 407, valve seat 407 is provided with the 6th valve port 413, the 7th valve port 415, the 8th valve port 417.Movable valve 433 slides on valve seat 407, selectively connects the 6th valve port and the 7th valve port, perhaps connects the 7th valve port and the 8th valve port.
Under the state that electromagnetic coil is not switched on, guiding valve 321 is communicated with second, third valve port, and the 5th valve port is communicated with system high pressure side (high-pressure liquid), the 7th valve port 415 is communicated with system low-voltage side (low-pressure fluid), because the 5th valve port is communicated with first valve port, thereby high-pressure liquid arrives second cavity 425 by the 4th valve port, capillary tube 334 in turn, and first cavity 421 is communicated with the 7th valve port 415 by capillary tube 332, second valve port 342, the 3rd valve port 343, capillary tube 333 in turn.Like this, the pressure of second cavity produces pressure difference greater than the pressure of first cavity, move to left together thereby make first, second piston drive slide block valve 433, thereby slide block valve 433 is communicated with the 6th, the 7th valve port.
Under these conditions, when electromagnetic coil was switched on, guiding valve 321 was communicated with the 3rd valve port, the 4th valve port, and high-pressure liquid then arrives first cavity 421 by capillary tube 331, first valve port 341, second valve port 342, capillary tube 332 in turn; Second cavity then is communicated with the 7th valve port 415 by capillary tube 334, the 4th valve port 344, the 3rd valve port 343, capillary tube 333 in turn.Like this, the pressure of second cavity produces pressure difference less than the pressure of first cavity, make first, second piston drive sliding shutter and move to right, thereby the slide block valve is communicated with the 7th, the 8th valve port.
From above-mentioned explanation as can be seen, this electromagnetism four-way change-over valve also can the following describes the pilot valve how this electromagnetism four-way change-over valve is used as the big capacity four-way valve of the utility model independently as the four-way change-over valve use of heat pump type air conditioner.
Fig. 6, Fig. 7 are the fundamental diagram of the utility model preferred embodiment, and wherein Fig. 6 shows "on" position, and Fig. 7 shows off-position.For the sake of clarity, the electromagnetism pilot valve 30 of pilot valve 40 (electromagnetism four-way change-over valve) is not shown.In conjunction with reference to Fig. 4, the 5th valve port of electromagnetism four-way change-over valve is communicated with by connecting tube 441 with the first main valve valve port of main valve, the 6th valve port is communicated with a side cavity 142 of main valve by connecting tube 442, the 8th valve port is communicated with the opposite side chamber 124 of main valve by connecting tube 444, and the 7th valve port is communicated with the 3rd main valve valve port by capillary tube 443 (referring to Fig. 4).
Here, the first main valve valve port and system high pressure side (high-pressure liquid) fluid communication, the 3rd main valve valve port and system low-voltage side (compressor suction side) fluid communication, because pilot valve and main valve have above-mentioned annexation, thereby, under the state that the electromagnetic coil of pilot valve is not switched on, the 6th, the 7th valve port is communicated with, and the chamber 141 of main valve communicates with the first main valve valve port 111 by connecting tube 444, the 8th valve port 417, first valve port 411 in turn.The chamber 142 of main valve is communicated with the 3rd main valve valve port by capillary tube 442, the 6th valve port 413, the 7th valve port 415, connecting tube 443.Thereby the pressure of chamber 141 is greater than the pressure of chamber 142, second separate space 122 of reversing piston 120 is displaced to main valve valve port position, and the first main valve valve port is connected by second separate space 122 ' with the second main valve valve port and the 4th main valve valve port and the 3rd main valve valve port are communicated with by second separate space 122.
Under the electromagnetic coil "on" position, the 7th, the 8th valve port is communicated with, and a side cavity 142 of main valve is communicated with the first main valve valve port 111 (high-pressure liquid) by connecting tube 442, the 6th valve port 413, the 5th valve port 411, connecting tube 441 in turn; 141 of the opposite side cavitys of main valve are communicated with the 3rd main valve valve port by connecting tube 444, the 8th valve port 417, the 7th valve port 415, connecting tube 443 in turn; Thereby the pressure of chamber 142 is greater than the pressure of chamber 141, make first separate space 121 of reversing piston be moved to main valve valve port position, thereby the first main valve valve port is communicated with by first separate space 121 with the 4th main valve valve port and the second main valve valve port and the 3rd main valve valve port are communicated with by first separate space 121 ', thereby realizes the purpose of commutation.
Owing to the utlity model has said structure, thereby main valve is easy to commutation.The same with prior art, the steel ball seat 123, the two steel ball 125 that are provided with in the reversing piston play the servo-actuated one-way valve in system, the flow direction of control reversing piston internal gas, the realization high pressure side is connected, low voltage side is closed, and with pilot valve to the high pressure side fast aeration, make height pressure reduction set up fast.Can certainly not establish through hole 124, steel ball seat 123, two steel ball 125, radial direction through hole 128, thereby make the designs simplification of reversing piston, can realize the purpose of this utility model equally.In addition, the pilot valve of big capacity four-way change-over valve of the present utility model can use the general domestic air conditioning four-way change-over valve identical or approximate with the utility model structure to substitute, this domestic air conditioning four-way change-over valve and main valve are easy to connect, and can multi-angle install, thereby implement easily.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Description of reference numerals
10 main valves, 20 pilot valves
110 cylindrical shells, 120 reversing pistons
131,132 end caps, 110 cylindrical shells
111 first main valve valve ports, 113 second main valve valve ports
115 the 3rd main valve valve ports 117 the 4th main valve valve port
141 chambers, 142 chambers
121,121 ' first separate space 122,122 ' second separate space
124 through holes, 127 trip bolts
125 pairs of steel balls of 123 steel ball seat
128 radial direction through hole, 126 tight bars
30 electromagnetism pilot valves, 310 electromagnets
320 valve bodies, 311 electromagnetic coils
312 armature, 314 springs
322 valve seats, 321 guiding valves
341 first valve ports, 342 second valve ports
343 the 3rd valve ports 344 the 4th valve port
323 links, 316 sleeve pipes
40 logical selector valve 400 valve bodies
401 cylinder bodies, 402,403 end caps
431 first pistons, 435 second pistons
421 first cavitys, 425 second cavitys
433 slide block valves, 407 valve seats
411 the 5th valve ports 413 the 6th valve port
415 the 7th valve ports 417 the 8th valve port
331 capillary tubies, 332 capillary tubies
333 capillary tubies, 334 capillary tubies
441 connecting tubes, 442 connecting tubes
444 connecting tubes, 443 capillary tubies
Claims (6)
1. one kind big capacity four-way change-over valve, be to be used for heat pump type air conditioner, it comprises the pilot valve of main valve and the described main valve commutation of control, described main valve comprises cylindrical shell and the reversing piston that can move in described cylindrical shell, it is characterized in that: described pilot valve is the electromagnetism four-way change-over valve, and described electromagnetism four-way change-over valve comprises the electromagnetism pilot valve of four-way change-over valve and control four-way change-over valve.
2. big capacity four-way change-over valve according to claim 1 is characterized in that:
Described electromagnetism pilot valve comprises electromagnet and valve body;
Described electromagnet comprises electromagnetic coil, armature and spring; Described valve body is provided with slide, guiding valve and first valve port; Described slide offers second valve port, the 3rd valve port, the 4th valve port; Described guiding valve is connected with described armature and movably is arranged on the described slide and connects second, third valve port under the electromagnetic coil off-position, connects the 3rd, the 4th valve port under the electromagnetic coil "on" position;
Described four-way change-over valve comprises valve body, and described valve body one side is provided with first piston, opposite side is provided with second piston, and between first, second piston and with the slide block valve of first, second piston interlock; Also be provided with valve seat and the 5th valve port on the described valve body, described valve seat is provided with the 6th valve port, the 7th valve port and the 8th valve port; Wherein, constitute first cavity between described first piston and the valve body, constitute second cavity between described second piston and the valve body;
Be connected by first capillary tube between described first cavity and described second valve port, be connected by second capillary tube between described second cavity and described the 4th valve port, described first valve port is communicated with described the 5th valve port by three capillary, and described the 3rd valve port is communicated with described the 7th valve port by the 4th capillary tube;
Wherein, in described the 5th valve port, be connected with high-pressure liquid and under described electromagnetic coil off-position, described slide block valve is connected described the 6th valve port and described the 7th valve port; Under described electromagnetic coil "on" position, described sliding shutter is connected described the 7th, the 8th valve port.
3. big capacity four-way change-over valve according to claim 2, it is characterized in that: described main valve is provided with the first main valve valve port, the second main valve valve port, the 3rd main valve valve port, and the 4th main valve valve port, described first, second, the 3rd, the 4th main valve valve port is cross and is arranged on the barrel wall, the described first main valve valve port is that high-pressure refrigerant flows into end, described the 3rd main valve valve port is connected with the suction side of compressor, the 5th valve port of described electromagnetism four-way change-over valve is communicated with the first main valve valve port, and the 7th valve port of described electromagnetism four-way change-over valve is communicated with described the 3rd main valve valve port.
4. big capacity four-way change-over valve according to claim 3, it is characterized in that: the two ends of described reversing piston and described cylindrical shell constitute the first side cavity and the second side cavity respectively, the described first side cavity is communicated with described the 6th valve port, and the described second side cavity is communicated with described the 8th valve port.
5. big capacity four-way change-over valve according to claim 4 is characterized in that: described reversing piston is to be provided with first separate space and second separate space on solid body and its outer circumferential face side by side.
6. big capacity four-way change-over valve according to claim 1 is characterized in that: the pilot valve of described big capacity four-way change-over valve is the domestic air conditioning four-way change-over valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620123918 CN2918916Y (en) | 2006-07-13 | 2006-07-13 | High capacity four-way change-over valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620123918 CN2918916Y (en) | 2006-07-13 | 2006-07-13 | High capacity four-way change-over valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2918916Y true CN2918916Y (en) | 2007-07-04 |
Family
ID=38216734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620123918 Expired - Lifetime CN2918916Y (en) | 2006-07-13 | 2006-07-13 | High capacity four-way change-over valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2918916Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758936A (en) * | 2012-02-08 | 2012-10-31 | 浙江三花制冷集团有限公司 | Pilot valve of four-way reversing valve and machining method of pilot valve |
| CN102853114A (en) * | 2011-06-29 | 2013-01-02 | 浙江盾安机械有限公司 | Two-position six-way valve for electric vehicle air conditionings and heat-pump heating and cooling air conditioning system for electric vehicles |
| CN106032847A (en) * | 2015-03-17 | 2016-10-19 | 浙江三花制冷集团有限公司 | Change-over valve and air-conditioning system comprising the same |
-
2006
- 2006-07-13 CN CN 200620123918 patent/CN2918916Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853114A (en) * | 2011-06-29 | 2013-01-02 | 浙江盾安机械有限公司 | Two-position six-way valve for electric vehicle air conditionings and heat-pump heating and cooling air conditioning system for electric vehicles |
| CN102853114B (en) * | 2011-06-29 | 2014-12-17 | 浙江盾安机械有限公司 | Two-position six-way valve for electric vehicle air conditionings and heat-pump heating and cooling air conditioning system for electric vehicles |
| CN102758936A (en) * | 2012-02-08 | 2012-10-31 | 浙江三花制冷集团有限公司 | Pilot valve of four-way reversing valve and machining method of pilot valve |
| CN106032847A (en) * | 2015-03-17 | 2016-10-19 | 浙江三花制冷集团有限公司 | Change-over valve and air-conditioning system comprising the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DUNAN ARTIFICIAL ENVIRONMENTAL APPARATUS CO., LTD Free format text: FORMER OWNER: DUNAN PRECISION INDUSTRY GROUP CO., LTD., ZHEJIANG Effective date: 20080222 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080222 Address after: Zhuji Industrial Zone, Zhejiang, China: 311835 Patentee after: Zhejiang Dun'an Artificial Environment Equipment Co., Ltd. Address before: Zhuji Industrial Zone, Zhejiang, China: 311835 Patentee before: Zhejiang Dun'an Precision Industries Group Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070704 |
|
| EXPY | Termination of patent right or utility model |