CN102359639A - Compact motor driven four-way reversal valve - Google Patents
Compact motor driven four-way reversal valve Download PDFInfo
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- CN102359639A CN102359639A CN2011102611167A CN201110261116A CN102359639A CN 102359639 A CN102359639 A CN 102359639A CN 2011102611167 A CN2011102611167 A CN 2011102611167A CN 201110261116 A CN201110261116 A CN 201110261116A CN 102359639 A CN102359639 A CN 102359639A
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Abstract
The invention provides a motor driven four-way reversal valve which has the advantages of compact structure and lower manufacturing cost. The four-way reversal valve comprises a synchro motor and a cam member driven by the synchro motor, wherein the rotating angular velocity of the cam member is same to that of a reversing rotor, and a location switch with a normally open contact, a normally close contact and a public contact is arranged nearby the cam member; the cam member is provided with a cam used for leading the location switch to act and allowing the work position of the location switch to change once when the cam member rounds one-quarter circumference; when the reversing rotor is located in a heating position, the contact which is just switched to be disconnected with the public contact on the location switch is a heating contact, and the other contact is a refrigerating contact; and the heating contact is conducted with a heating supple line, the refrigerating contact is conducted with a refrigerating supple line, the public contact is conducted with one electrode of the synchro motor, and the other one electrode of the synchro motor is conducted with a concentric line. The four-way reversal valve provided by the invention has the advantages of short conduction time, high motion reliability, simple structure, simplified fitting process, lower cost and the like.
Description
Technical field
The present invention relates to the four-way change-over valve that a kind of air conditioner is used.
Background technique
Like Fig. 1, shown in Figure 2, air conditioner uses traditional electromagnetism four-way change-over valve to change refrigeration and heats the flow direction of mutual transfer process refrigeration agent.The deficiency that traditional electromagnetism four-way change-over valve exists is:
1) accomplish the electromagnetic coil that freezes after the conversion that heats and still switch on, not energy-conservation, simultaneously since current"on"time long easy scaling loss;
2) adopt electromagnetic priority valve control guiding valve both sides pressure reduction to realize switching-over, medium tache is many, and guiding valve is stuck easily not to commutate;
3) except that electromagnetic coil, other number of spare parts reaches more than 35, and part is many, complex structure;
4) assembly technology is complicated, and particularly nearly more than 16 places, welding equipment requires high in the welding part, and quality is restive;
5) material and processing cost are high.
Therefore need traditional electromagnetism four-way change-over valve be improved.
The Chinese utility model patent of " a kind of electric four passes selector valve " by name (patent No.: 201020214283.7, the applying date: on May 29th, 2010, open day: on March 23rd, 2011), disclose a kind of four-way valve through driven by motor.Yet a kind of structure that adopts the four-way valve that actuating motor drives is only disclosed, the structure of the four-way valve that the motor of unexposed other characteristics of employing drives in this patent document.Structure according to the four-way valve that is limited in this technological scheme; Those skilled in the art also can directly judge its technological scheme and also can only adopt actuating motor to drive; If the motor that adopts other characteristics as: when synchronous machine drives; Then can occur and to make the switching-over rotor that can't guarantee four-way valve be in correct working position to the problem controlled of action moment, time and rotation angle of switching-over rotor.In addition, those skilled in the art knows that also the driving of actuating motor and control need comparatively complicated control circuit can realize that just this makes such four-way valve in fact not have cost advantage.
Summary of the invention
The present invention provides a kind of compact structure, the energy-saving four-way change-over valve of motor driving that cost of production is lower, to substitute existing four-way change-over valve.
For realizing above-mentioned purpose, the present invention takes following technological scheme:
Compact(ing) machine drives four-way change-over valve, comprises motor and the four-way change-over valve body that disposes the switching-over rotor; Said motor carries out transmission to the switching-over rotor; Especially, said motor is a synchronous machine; Also comprise a cam member that drives by synchronous machine; Said cam member rotational angular is identical with the angular velocity of switching-over rotor rotation; Near cam member, be provided with the location switch of band normally opened contact, normally-closed contact and a common; Said cam member is provided with and is used to make location switch to move, and changes cam once whenever cam member turns over the working position that just makes location switch 1/4 week; Be in when heating the position with the switching-over rotor, just switched to the contact broken off with common on the location switch for heating the contact, another contact is the contact of freezing; Heat the contact and heat the supply lines conducting, refrigeration contact and the conducting of refrigeration supply lines, an electrode conduction of common and synchronous machine, another electrode of synchronous machine and common wire conducting.
Working principle of the present invention is following:
In the existing technology, dispose the four-way change-over valve body of switching-over rotor, the normal operation position of switching-over rotor has two kinds: heat position and refrigeration position.Heat the position: the switching-over position that rotor stopped makes that air-conditioning system can be to indoor heating.The refrigeration position: the switching-over position that rotor stopped makes that air-conditioning system can be to indoor refrigeration.Existing four-way change-over valve body as long as it's 1/4 week past for switching-over rotor revolution, can switch to the refrigeration position from heating the position, perhaps switch to from the refrigeration position and heat the position, and handoff procedure is to the no requirement (NR) that turns to of switching-over rotor.When such four-way change-over valve body is when adopting synchronous machine to drive; The problem that faces is: how to make the synchronous machine that self does not possess the accurate control of rotation angle can both drive the switching-over rotor at every turn and turned over for 1/4 week exactly; Then stop, heating position or refrigeration position to guarantee to commutate to be in exactly after rotor switches at every turn.Based on the existing four-way change-over valve body that disposes the switching-over rotor; When synchronous machine rotates among the present invention except that driving the switching-over rotor rotation; The pivotal position of the rotor that commutates also drives cam member and rotate, and cam member is identical with the rotor that commutates around the angular velocity of self pivot axis around the angular velocity of self pivot axis, so can be reflected in the pivotal position of cam member; That is: when the switching-over rotor turned over for 1/4 week, cam member also turned over for 1/4 week.In addition; Because it's 1/4 week past for the cam member revolution, the cam on it can make the working position of location switch change once, thus make synchronous machine from electricity condition becomes power failure state and stops; So cam member and all only rotatable at every turn 1/4 week of switching-over rotor; So just can guarantee to commutate rotor or be in and heat the position, or be in the refrigeration position, can not cause the working position to depart from.
Location switch is provided with normally opened contact, normally-closed contact and common, and the working position of location switch is equipped with two: when i) normally opened contact and common were connected, normally-closed contact and common were broken off; When ii) normally opened contact and common were broken off, normally-closed contact can be connected with common.The present invention's rotor that will commutate is in when heating the position, has just switched to the contact of breaking off with common on the location switch and has been defined as and heats the contact, and another contact is defined as the refrigeration contact.Then can draw: when heating the connection of contact and common, refrigeration contact and common are broken off; When heating the disconnection of contact and common, refrigeration contact and common are connected.Heat the contact and heat the supply lines conducting, refrigeration contact and the conducting of refrigeration supply lines.In the time of need heating, can be only to heating the supply lines power supply; When needing refrigeration, can combine the residing at that time position of rotor of commutating only to the power supply of refrigeration supply lines, four-way change-over valve of the present invention will be according to following rule action:
1) the switching-over rotor is in and heats the position, heats the supply lines energising, the outage of refrigeration supply lines: synchronous machine can not get electric rotation because of heating the disconnection of contact and common, and the rotor that commutates this moment still is in and heats the position;
2) the switching-over rotor is in and heats the position; Heat the supply lines outage, the energising of refrigeration supply lines: synchronous machine is connected because of freeze contact and common can get electric rotation, is driving the switching-over rotor rotation after 1/4 week; Cam on the cam member makes the working position of location switch change once; Refrigeration contact and common are broken off, and heat contact and common and connect, and synchronous machine stops to change
Moving, the rotor that commutates this moment is in the refrigeration position;
3) the switching-over rotor is in the refrigeration position, heats supply lines energising, the outage of refrigeration supply lines: synchronous machine can get electric rotation because of heating the connection of contact and common; Driving the switching-over rotor rotation after 1/4 week; Cam on the cam member makes the working position of location switch change once, heats contact and common and breaks off, and refrigeration contact and common are connected; Synchronous machine stops operating, and the rotor that commutates this moment is in and heats the position;
4) the switching-over rotor is in the refrigeration position, heats supply lines outage, the energising of refrigeration supply lines: synchronous machine breaks off with common because of the refrigeration contact can not get electric rotation, and the rotor that commutates this moment still is in the position of freezing.
This shows that the rotor that no matter commutates is in and heats the position of still freezing, position, as long as to heating the supply lines energising, the switching-over rotor finally will be in and heat the position; As long as to the energising of refrigeration supply lines, the switching-over rotor finally will be in the refrigeration position.And the words of synchronous machine rotation; Also can only drive switching-over just stops in 1/4 week of rotor rotation at every turn automatically; The rotor of guaranteeing to commutate drops on exactly and heats position or refrigeration position, and need not to realize the control to switching-over rotor stop place through the mode that the supplied character of supply lines is done accurately to require.Therefore this product is very low to the requirement of power supply circuits, the corresponding raising of the versatility of product.
For realizing " it's 1/4 week past for the cam member revolution; the cam on it can make the working position of location switch change once " function; Can adopt following technological scheme: the cam on the cam member is provided with first protuberance and second protuberance that is mutually 180 °; Location switch all can change the working position and keep on first protuberance and second protuberance, turned over for 1/4 week until cam member.
Above-described cam member preferably is arranged between the input shaft of the output shaft of synchronous machine and the rotor that commutates, the double as coupling.Cam member also can be arranged on other positions and driven through other kinds of drive such as gear transmissions by synchronous machine.
Above-described location switch is preferably with the sensitive switch of normally opened contact, normally-closed contact and common.
Described four-way change-over valve body, first mouth of pipe on it, second mouth of pipe, the 3rd mouth of pipe, the 4th mouth of pipe can be drawn from the direction of the input shaft that is parallel to the rotor that commutates, also can draw from the direction perpendicular to the input shaft of switching-over rotor.
Motor driving four-way change-over valve of the present invention is compared with existing product, has the following advantages:
1) current"on"time is short: no electric circuit under traditional electromagnetism four-way change-over valve refrigerating state, but switch on all the time in the state lower coil of heating; Four-way change-over valve of the present invention is just just switched in switching-over rotor switch operating position, and shorten current"on"time greatly, reached energy-conservation effect;
2) reliable in action property is high: traditional electromagnetism four-way change-over valve switching-over parts are realized switching-over by refrigerant gas pressure-driven slide block linear slide; And four-way change-over valve switching-over parts of the present invention rotate the realization switching-over under the direct driving of motor, and reliable in action property is improved;
3) simple in structure: traditional electromagnetism four-way change-over valve number of spare parts reaches more than 35; Four-way change-over valve number of spare parts of the present invention has only about 20, and cost reduces;
4) assembly process is simplified: traditional electromagnetism four-way change-over valve welding part is nearly more than 16 places; Four-way change-over valve of the present invention welding part is only less than 10 places, and quality of product guarantees easily;
5) cost is lower: compare with the four-way change-over valve that adopts actuating motor, four-way change-over valve of the present invention can be saved the cost of motor cost and control circuit, even can on the part type of existing air conditioner, directly use, and effectively reduces the complete machine of air conditioner cost.
Description of drawings
Fig. 1 is the refrigeration cycle schematic diagram of existing electromagnetism four-way change-over valve;
Fig. 2 be existing electromagnetism four-way change-over valve heat circulation theory figure;
Fig. 3 is embodiment 1 a plan view;
Fig. 4 is that the A-A of Fig. 3 is to sectional view (switching-over rotor be in heat the position);
Fig. 5 is embodiment 1 a refrigeration cycle schematic diagram one;
Fig. 6 is embodiment 1 a refrigeration cycle schematic diagram two;
Fig. 7 be embodiment 1 heat circulation theory figure one;
Fig. 8 be embodiment 1 heat circulation theory figure two;
Fig. 9 is the stereogram of embodiment 1 cam member;
Figure 10 is the plan view of embodiment 1 cam member;
Figure 11 is that the B-B of Figure 10 is to sectional view;
Figure 12 is the stereogram of embodiment 1 switching-over rotor;
Figure 13 is the plan view of embodiment 1 switching-over rotor;
Figure 14 is embodiment 1 circuit theory diagrams (current being in of switching-over rotor heats the position);
Figure 15 is embodiment 1 circuit theory diagrams (the current refrigeration position that is in of switching-over rotor);
Figure 16 is embodiment 2 a structure sectional view;
Figure 17 is that the C-C of Figure 16 is to sectional view.
Description of reference numerals: 1-drive unit; 2-four-way change-over valve body; The 3-lid; The 4-cassette holder; The 5-synchronous machine; The 6-cam member; The 7-sensitive switch; 8-heats supply lines; The 9-supply lines that freezes; The 10-common wire; The 11-output shaft; The 12-valve shell; 13-valve body gland; The 14-rotor that commutates; The 15-input shaft; 16-input shaft seal ring; The 17-valve seals; The 18-pressure-equalizing pipe; 19-first mouth of pipe; 20-second mouth of pipe; 21-the 3rd mouth of pipe; 22-the 4th mouth of pipe; The 23-refrigerant passage; The 61-cam; 611-first protuberance; 612-second protuberance; The 71-normally opened contact; The 72-normally-closed contact; The 73-common; The 711-contact of freezing; 721-heats the contact; 12 '-valve shell; 14 '-switching-over rotor; 15 '-input shaft; 19 '-the first mouth of pipe; 20 '-the second mouth of pipe; 21 '-Di, three mouths of pipe; 22 '-Di, four mouths of pipe; 23 '-refrigerant passage.
Embodiment
Below in conjunction with accompanying drawing and embodiment content of the present invention is described further.
Like Fig. 3, shown in Figure 4, the motor driving four-way change-over valve of present embodiment comprises the drive unit 1 and four-way change-over valve body 2 that links together.Wherein:
A) drive unit 1 comprises: lid 3, cassette holder 4, synchronous machine 5, cam member 6, as the sensitive switch 7 of location switch, heat supply lines 8, refrigeration supply lines 9 and common wire 10.
B) four-way change-over valve body 2 comprises: valve shell 12, valve body gland 13, switching-over rotor 14, input shaft 15, input shaft seal ring 16, valve seals 17 and pressure-equalizing pipe 18
Like Fig. 9, Figure 10, shown in Figure 11, the cam 61 on the cam member 6 is provided with first protuberance 611 and second protuberance 612 that is mutually 180 °.Under the situation of establishment to the control requirement of sensitive switch 7; Those skilled in the art is according to its knowledge and the shape of cam is designed; In the time of can making the sensitive switch 7 and first protuberance 611 and second protuberance, 612 interoperations; The working position of sensitive switch 7 is changed and is held, and turns over for 1/4 week until cam member 6.
Like Fig. 5, shown in Figure 6; Be in the air-conditioning system of refrigeration cycle; Require the switching-over rotor 14 of four-way change-over valve to be in the refrigeration position, promptly require switching-over rotor 14 to be in and make first mouth of pipe 19 communicate, the position that the 3rd mouth of pipe 21 communicates with the 4th mouth of pipe 22 with second mouth of pipe 20.Like Fig. 7, shown in Figure 8; Be in and heat in the circuit air-conditioning system; The switching-over rotor 14 of requirement four-way change-over valve is in and heats the position, promptly requires switching-over rotor 14 to be in and makes first mouth of pipe 19 communicate with the 4th mouth of pipe 22, the position that second mouth of pipe 20 communicates with the 3rd mouth of pipe 21.For switching-over rotor 14, as long as switching-over rotor 14 turned over for 1/4 week, the position and heat the switching between the position of can realizing freezing clockwise or counterclockwise.
Shown in figure 14, sensitive switch 7 is provided with normally opened contact 71, normally-closed contact 72 and common 73.In the present embodiment; When switching-over rotor 14 is in when heating the position; This moment, sensitive switch 7 was in the state of just having been depressed by cam 61; So the normally-closed contact 72 that this moment and common 73 are broken off be present embodiment heat contact 721, the normally opened contact of connecting with common 73 71 is refrigeration contacts 711 of present embodiment.On the contrary, if be in when heating the position when the switching-over rotor, this moment, sensitive switch was in the state that has just been discharged by cam, and then the normally opened contact that breaks off of this moment and common is to heat the contact, and the normally-closed contact of connecting with common is the refrigeration contact.The circuit structure of present embodiment is shown in figure 14; Heat contact 721 and heat supply lines 8 conductings; Refrigeration contact 711 and 9 conductings of refrigeration supply lines, an electrode conduction, another electrode of synchronous machine 5 and common wire 10 conductings of common 73 and synchronous machine 5.
Like Fig. 4, shown in Figure 14, switching-over rotor 14 is in when heating the position, heats contact 721 and breaks off with common 73; Refrigeration contact 711 is connected with common 73; Therefore when heating supply lines 8 energisings, synchronous machine 5 can not rotate, and switching-over rotor 14 still is in and heats the position; When the energising of refrigeration supply lines 9, synchronous machine 5 rotates, and is shown in figure 15 after driving switching-over rotor 14 and turning over for 1/4 week, and cam member 6 can discharge sensitive switches 7 and order refrigeration contact 711 is broken off with common 73, and order switching-over rotor 14 rests on the refrigeration position.On the contrary, when switching-over rotor 14 is in the refrigeration position, heats contact 721 and connect with common 73; Refrigeration contact 711 is broken off with common 73; Therefore when 9 energisings of refrigeration supply lines, synchronous machine can not rotate, and switching-over rotor 14 still is in the refrigeration position; When heating supply lines 8 energising, synchronous machine 5 rotates, and after driving switching-over rotor 14 and turning over for 1/4 week, cam member 6 can be depressed sensitive switch 7 and order heats contact 711 and breaks off with common 73, and order switching-over rotor 14 rests on and heats the position.
Therefore, the motor driving four-way change-over valve of the present embodiment rotor 14 that no matter commutates is in and heats the position of still freezing, position, as long as to heating supply lines 8 energisings, switching-over rotor 14 finally will be in and heat the position; As long as to 9 energisings of refrigeration supply lines, switching-over rotor 14 finally will be in the refrigeration position.And the rotor 14 of can guaranteeing to commutate drop on exactly at every turn heat the position or the refrigeration position.Embodiment 2
Like Figure 16, shown in Figure 17, present embodiment is with embodiment 1 difference: on shape and the valve shell of switching-over rotor first mouth of pipe, second mouth of pipe, the 3rd mouth of pipe and the 4th mouth of pipe to draw direction different.Be specially: switching-over rotor 14 ' is processed one with input shaft 15 '; Be shaped on a dividing plate 24 ' on the switching-over rotor 14 '; This dividing plate 24 ' is along the diametric(al) setting of switching-over rotor 14 '; And perpendicular to the end face of switching-over rotor 14 ', corresponding two refrigerant passages 23 ' in the both sides of dividing plate 24 ' as switching-over rotor 14 '; First mouth of pipe 19 ', second mouth of pipe 20 ', the 3rd mouth of pipe 21 ' and the 4th mouth of pipe 24 ' are all gone up perpendicular to the direction of the input shaft of switching-over rotor 14 ' from valve shell 12 ' and are drawn.Shown in figure 20, the rotor 14 ' that commutates this moment makes the mouth of pipe 19 ' of winning communicate with second mouth of pipe 20 ', and the 3rd mouth of pipe 21 ' communicates with the 4th mouth of pipe 22 '.After switching-over rotor 14 ' turned over for 1/4 week, then first mouth of pipe 19 ' communicated with the 4th mouth of pipe 22 ', and second mouth of pipe 20 ' communicates with the 3rd mouth of pipe 21 ', realized commutation function.
Claims (7)
1. compact(ing) machine drives four-way change-over valve, comprises motor and the four-way change-over valve body that disposes the switching-over rotor; Said motor carries out transmission to the switching-over rotor; It is characterized in that: said motor is a synchronous machine; Also comprise a cam member that drives by synchronous machine; Said cam member rotational angular is identical with the angular velocity of switching-over rotor rotation; Near cam member, be provided with the location switch of band normally opened contact, normally-closed contact and a common; Said cam member is provided with and is used to make location switch to move, and changes cam once whenever cam member turns over the working position that just makes location switch 1/4 week; Be in when heating the position with the switching-over rotor, just switched to the contact broken off with common on the location switch for heating the contact, another contact is the contact of freezing; Heat the contact and heat the supply lines conducting, refrigeration contact and the conducting of refrigeration supply lines, an electrode conduction of common and synchronous machine, another electrode of synchronous machine and common wire conducting.
2. compact(ing) machine as claimed in claim 1 drives four-way change-over valve; It is characterized in that: the cam on the cam member is provided with first protuberance and second protuberance that is mutually 180 °; Location switch all can change the working position and keep on first protuberance and second protuberance, turned over for 1/4 week until cam member.
3. according to claim 1 or claim 2 compact(ing) machine drives four-way change-over valve, and it is characterized in that: the motor driving four-way change-over valve comprises drive unit (1) and the four-way change-over valve body (2) that links together; Wherein:
A) drive unit (1) comprising: lid (3), cassette holder (4), synchronous machine (5), cam member (6), as the sensitive switch (7) of location switch, heat supply lines (8), refrigeration supply lines (9) and common wire (10);
Lid (3) and cassette holder (4) link together through screw, constitute box body; Synchronous machine (5), cam member (6), sensitive switch (7) all are in the box body; Cam member (6) coaxially is installed on the output shaft (11) of synchronous machine (5), and as the coupling of output shaft (11) and input shaft (15); Sensitive switch (7) be arranged on cam member (6) near, cooperate the cam (61) on the cam member (6) and move; Heat supply lines (8) and refrigeration supply lines (9) is drawn from sensitive switch (7), common wire (10) is drawn from synchronous machine (5), heats supply lines (8), refrigeration supply lines (9) and common wire (10) pass outside the box body;
B) four-way change-over valve body (2) comprising: valve shell (12), valve body gland (13), switching-over rotor (14), input shaft (15), input shaft seal ring (16), valve seals (17) and pressure-equalizing pipe (18); Valve shell (12) links together through being threaded with valve body gland (13), between valve shell (12) and valve body gland (13), is provided with valve seals (17); Switching-over rotor (14) is arranged between valve shell (12) and the valve body gland (13) in the formed cavity; Input shaft (15) passes from valve body gland (13), and one of which end and cam member (6) link together, and its other end is inserted in the groove position of switching-over rotor (14); Input shaft seal ring (16) is arranged between input shaft (15) and the valve body gland (13); On valve shell (12), also be provided with and be used for first mouth of pipe (19), second mouth of pipe (20), the 3rd mouth of pipe (21) and the 4th mouth of pipe (22) that are connected with the refrigerant pipeline of air conditioner; Pressure-equalizing pipe (18) is communicated with formed cavity between second mouth of pipe (20) and valve shell (12) and the valve body gland (13); Two refrigerant passages (23) of switching-over rotor (14) are arranged on the end face of switching-over rotor (14); Be " one " shape and parallel to each other respectively, first mouth of pipe (19), second mouth of pipe (20), the 3rd mouth of pipe (21) and the 4th mouth of pipe (22) are all drawn from the direction of input shaft (15) that is parallel to switching-over rotor (14).
4. according to claim 1 or claim 2 motor driving four-way change-over valve is characterized in that: said cam member is arranged between the input shaft of output shaft and switching-over rotor of synchronous machine, the double as coupling.
5. according to claim 1 or claim 2 motor driving four-way change-over valve, it is characterized in that: said location switch is a sensitive switch.
6. according to claim 1 or claim 2 motor driving four-way change-over valve is characterized in that: first mouth of pipe of four-way change-over valve body on it, second mouth of pipe, the 3rd mouth of pipe, the 4th mouth of pipe are drawn from the direction of the input shaft that is parallel to the rotor that commutates.
7. according to claim 1 or claim 2 motor driving four-way change-over valve is characterized in that: first mouth of pipe of four-way change-over valve body on it, second mouth of pipe, the 3rd mouth of pipe, the 4th mouth of pipe are drawn from the direction perpendicular to the input shaft of switching-over rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102611167A CN102359639A (en) | 2011-09-05 | 2011-09-05 | Compact motor driven four-way reversal valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102611167A CN102359639A (en) | 2011-09-05 | 2011-09-05 | Compact motor driven four-way reversal valve |
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| Publication Number | Publication Date |
|---|---|
| CN102359639A true CN102359639A (en) | 2012-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102611167A Pending CN102359639A (en) | 2011-09-05 | 2011-09-05 | Compact motor driven four-way reversal valve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641335A (en) * | 2016-12-16 | 2017-05-10 | 海信（广东）空调有限公司 | Three-way reversing valve, refrigeration system and control method of refrigeration system |
| CN110703659A (en) * | 2019-10-28 | 2020-01-17 | 北京动力机械研究所 | Three-position switching electric mechanism control device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4139355A (en) * | 1977-04-28 | 1979-02-13 | Essex Group, Inc. | Four wave valve for reversible cycle refrigeration system |
| CN1090382A (en) * | 1993-01-25 | 1994-08-03 | 太平洋精工株式会社 | Air conditioner four-way change-over valve and service valve |
| CN1254805A (en) * | 1998-11-25 | 2000-05-31 | 姜永明 | Electrically controlled 4-way diverter valve |
| JP2002022041A (en) * | 2000-07-11 | 2002-01-23 | Saginomiya Seisakusho Inc | Four way valve |
| CN202215822U (en) * | 2011-09-05 | 2012-05-09 | 广东恒基金属制品实业有限公司 | Compact-type motor-driving four-way reversing valve |
-
2011
- 2011-09-05 CN CN2011102611167A patent/CN102359639A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4139355A (en) * | 1977-04-28 | 1979-02-13 | Essex Group, Inc. | Four wave valve for reversible cycle refrigeration system |
| CN1090382A (en) * | 1993-01-25 | 1994-08-03 | 太平洋精工株式会社 | Air conditioner four-way change-over valve and service valve |
| CN1254805A (en) * | 1998-11-25 | 2000-05-31 | 姜永明 | Electrically controlled 4-way diverter valve |
| JP2002022041A (en) * | 2000-07-11 | 2002-01-23 | Saginomiya Seisakusho Inc | Four way valve |
| CN202215822U (en) * | 2011-09-05 | 2012-05-09 | 广东恒基金属制品实业有限公司 | Compact-type motor-driving four-way reversing valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641335A (en) * | 2016-12-16 | 2017-05-10 | 海信（广东）空调有限公司 | Three-way reversing valve, refrigeration system and control method of refrigeration system |
| CN106641335B (en) * | 2016-12-16 | 2018-12-28 | 海信（广东）空调有限公司 | A kind of three-way diverter valve, refrigeration system and its control method |
| CN110703659A (en) * | 2019-10-28 | 2020-01-17 | 北京动力机械研究所 | Three-position switching electric mechanism control device |
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Application publication date: 20120222 |