WO2022037325A1 - 换向阀阀体及具有其的换向阀 - Google Patents

换向阀阀体及具有其的换向阀 Download PDF

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Publication number
WO2022037325A1
WO2022037325A1 PCT/CN2021/106126 CN2021106126W WO2022037325A1 WO 2022037325 A1 WO2022037325 A1 WO 2022037325A1 CN 2021106126 W CN2021106126 W CN 2021106126W WO 2022037325 A1 WO2022037325 A1 WO 2022037325A1
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WO
WIPO (PCT)
Prior art keywords
air guide
guide hole
valve
passage
channel
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Application number
PCT/CN2021/106126
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English (en)
French (fr)
Inventor
韩润虎
Original Assignee
浙江盾安人工环境股份有限公司
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Publication of WO2022037325A1 publication Critical patent/WO2022037325A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/04—Construction of housing; Use of materials therefor of sliding valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks

Definitions

  • the present application relates to the technical field of reversing valve equipment, and in particular, to a reversing valve body and a reversing valve having the same.
  • the four-way reversing valve is a common reversing valve for heat pump air conditioners. By changing the exhaust and return flow directions of the compressor, it can achieve cooling in summer and heating in winter.
  • the main purpose of the present application is to provide a reversing valve body and a reversing valve having the same, so as to solve the problem of difficult handling and replacement caused by many external pipelines of the reversing valve body in the prior art.
  • a reversing valve body includes: a valve cylinder, a plurality of passages are provided on the valve cylinder, and the inside of the valve cylinder is used to install a valve core, Driving the valve core can selectively make at least two of the multiple passages communicate; the first end cover, the first end cover is mounted on the first end of the valve barrel, and the first end cover or the first end of the valve barrel is provided with a first end cover; an air guide hole; a first channel is opened on the side wall of the valve cylinder, the first end of the first channel is arranged corresponding to the first air guide hole, and communicates with the first air guide hole, and the second end of the first channel is connected to the passage or valve
  • the outer sidewall of the cartridge or the inner sidewall of the valve cartridge communicates.
  • a sealing portion is provided between the first air guide hole and the first end of the first channel to seal the gap between the first air guide hole and the first channel.
  • the sealing part includes a sealing ring, a side of the first air guide hole close to the first channel is provided with an annular groove, the annular groove is coaxial with the first air guide hole, and the sealing ring is partially accommodated in the annular groove.
  • the sealing part further includes a hollow tube, the first end of the hollow tube is inserted into the first air guide hole, the second end of the hollow tube is inserted into the first end of the first channel, and the sealing part is sleeved outside the hollow tube.
  • first end of the first channel is provided with an accommodating groove, and the second end of the hollow tube is penetrated in the accommodating groove.
  • the hollow tube is in interference fit with the accommodating groove, or the outer wall of the hollow tube is provided with an external thread, the inner wall of the accommodating groove is provided with an internal thread, and the hollow tube and the accommodating groove are connected with the internal thread through the external thread.
  • valve core can move along the axial direction of the valve cylinder, and the plurality of passages include D passage, S passage, E passage and C passage, wherein, the reversing valve body further comprises a second end cover, and the second end cover is installed on the The second end of the valve barrel, the second end cover or the valve barrel is provided with a second air guide hole, the end wall of the valve barrel is provided with a third channel, the first end of the third channel is correspondingly arranged with the second air guide hole, and In communication with the second air guide hole, the second end of the third channel is in communication with the passage or the side wall of the valve cylinder.
  • the reversing valve body further comprises a second end cover, and the second end cover is installed on the The second end of the valve barrel, the second end cover or the valve barrel is provided with a second air guide hole, the end wall of the valve barrel is provided with a third channel, the first end of the third channel is correspondingly arranged with the second air guide hole, and In communication with the second air guide hole, the
  • first end cover is provided with a second channel, the first end of the second channel is communicated with the first air guide hole, the second end of the second channel is communicated with the inner end wall of the first end of the valve cylinder, the first channel
  • the second end of the valve cylinder forms an opening on the side wall of the valve cylinder; the second end of the third channel passes through the side wall of the valve cylinder and communicates with the pilot valve, the second end cover is provided with a fourth channel, and the first The end communicates with the second air guide hole, and the second end of the fourth passage communicates with the inner end wall of the second end of the valve cylinder.
  • first air guide hole is opened on the inner side wall of the first end of the valve cylinder, and the second end of the first channel is communicated with the outer side wall of the valve cylinder; the second air guide hole is opened on the inner side wall of the second end of the valve cylinder. , the second end of the third passage communicates with the outer side wall of the valve cylinder.
  • the first end cover is provided with a guide hole, the guide hole and the first air guide hole are both through holes, the guide hole is communicated with the inner cavity of the first end of the valve cylinder, and the second end of the first channel is connected with the inner cavity of the first end of the valve cylinder.
  • the inner cavity of the second end of the valve barrel communicates.
  • the first air guide hole is a through hole opened on the first end cover
  • the second end of the first channel is communicated with the D channel
  • the second air guide hole is a through hole opened on the second end cover
  • the third channel The first end of the channel is communicated with the second air guide hole
  • the second end of the third channel is communicated with the S channel
  • the first air guide hole and the second air guide hole are both communicated with the pilot valve.
  • first air guide hole is a through hole opened on the first end cover
  • second end of the first channel is communicated with the side wall of the valve cylinder
  • second air guide hole is a through hole opened on the second end cover
  • the first end of the third passage communicates with the second air guide hole
  • the second end of the third passage communicates with the side wall of the valve cylinder.
  • the plurality of passages include D passage, S passage, E passage and C passage
  • the valve core is rotatably installed inside the valve barrel, and the inside of the valve barrel is provided with a first chamber and a second chamber separated from each other, A control cavity is arranged inside the first cavity, and the multiple passages are all communicated with the second cavity.
  • the valve body of the reversing valve further includes: a driving part, which is rotatably arranged in the control cavity and divides the control cavity into two parts.
  • a pressure cavity, the driving part is fixedly connected with the valve core, the pressure difference between the two pressure cavities can drive the driving part to drive the valve core to rotate, and the end of the driving part is pivotally connected to the end wall of the first chamber;
  • the cover is provided with a first air guide hole and a second air guide hole, a third channel is opened on the end wall of the valve cylinder, the first end of the third channel is arranged corresponding to the second air guide hole and communicated with the second air guide hole, the third The first air guide hole and the second air guide hole are both through holes opened on the first end cover and communicate with the pilot valve, the second end of the first channel is communicated with the D channel, and the second end of the third channel is communicated with the S channel , the first end of the first channel is communicated with the first air guide hole;
  • the first end cover is provided with a third air guide hole and a fourth air guide hole or the first end of the valve cylinder is provided with a third air guide hole and a fourth air guide hole, the first The third air
  • a reversing valve is provided, and the reversing valve includes the foregoing reversing valve valve body.
  • the first end cover of the valve body of the reversing valve of the present application or the first end of the valve cylinder is provided with a first air guide hole, and the end wall of the valve cylinder is clamped with a first channel, which passes through the first air hole.
  • the connection between the air guide hole and the first channel can replace the existing pilot valve nozzle set on the outside, and realize the inner channel circulation of the valve cylinder wall and the end cover.
  • the built-in structure of the channel can also avoid transportation. Damage to the pilot valve nozzle caused by a collision during the process.
  • FIG. 1 schematically shows a structural diagram of an embodiment in which the first air guide hole of the reversing valve of the present application is not a through hole;
  • Figure 2 schematically shows a cross-sectional view of the embodiment of the reversing valve of Figure 1;
  • FIG. 3 schematically shows a cross-sectional view of an embodiment in which the first air guide hole of the reversing valve of the present application is a through hole;
  • FIG. 4 schematically shows an internal structure diagram of an embodiment in which the reversing valve of the present application has a driving part.
  • valve cylinder 11, passageway; 12, first end cap; 13, first air guide hole; 13a, first air guide hole; 13b, first air guide hole; 14, first passage; 14a, first passage; 141 , the first hole segment; 142, the second hole segment; 15, the sealing ring; 16, the hollow tube; 17, the second channel; 20, the valve core; 30, the second end cap; 31, the third channel; 32, the first Four channels; 40, pilot valve; 50, driving part; 51, pressure chamber; 52, second air guide hole; 53, third air guide hole; 54, fourth air guide hole.
  • the current detachable four-way reversing valve has an end cover, which can be removed during maintenance.
  • the pilot valve is installed on the side wall of the cylinder, and the nozzle of the pilot valve is installed on the outside of the end cover.
  • the connection between the nozzle of the pilot valve and the end cover is usually threaded.
  • the pilot valve is installed on the end cover, and the nozzle of the pilot valve must be connected to the nozzle of the main valve.
  • the pilot valve connection when removing the end cover, the pilot valve connection must be removed first.
  • the pipe connections must be welded instead of threaded connections. If the welding connection is used, it is very troublesome to disassemble the end cover later, and it often requires a torch gun, oxygen and acetylene to achieve disassembly.
  • an embodiment of the present application provides a reversing valve valve body.
  • the reversing valve valve body includes a valve barrel 10 and a first end cover 12 , wherein the valve barrel 10 A plurality of passages 11 are provided on the upper part of the valve cylinder 10 , and the valve core 20 is used to install the valve core 20 inside the valve cylinder 10 , and the valve core 20 can be driven to selectively connect at least two of the multiple passages 11 ; the first end cover 12 is installed on the valve cylinder 10 .
  • the first end, the first end cover 12 or the first end of the valve barrel 10 is provided with a first air guide hole 13; the side wall of the valve barrel 10 is provided with a first channel 14, and the first end of the first channel 14 is connected to the first
  • the air guide holes 13 are correspondingly arranged and communicate with the first air guide holes 13 .
  • the first end cover 12 of the valve body of the reversing valve of the present application is provided with a first air guide hole 13
  • the end wall of the valve cylinder 10 is provided with a first channel 14
  • the first air guide hole 13 communicates with the first channel 14 .
  • the built-in structure of the channel can also avoid the pilot caused by collision during transportation. Damage to the valve nozzle.
  • the first end cover 12 is detachably installed on the first end of the valve cylinder 10. When removing the end cover, there is no need to disassemble the external pilot valve nozzle, and the disassembly is convenient.
  • An internal channel is provided between the first end cover 12 and the inside of the first end of the valve cylinder 10. Since there is a gap between the first air guide hole 13 and the first end of the first channel 14, the gap between the two is prone to occur.
  • a sealing portion is provided between the first air guide hole 13 and the first end of the first channel 14 in this embodiment to seal the gap between the first air guide hole 13 and the first channel 14 .
  • the sealing portion is provided to seal the gap between the first air guide hole 13 and the first end of the first channel 14, so as to ensure the sealing performance of the internal channel.
  • the sealing part in this embodiment includes a sealing ring 15 , an annular groove is provided on the side of the first air guide hole 13 close to the first channel 14 , the annular groove is coaxial with the first air guide hole 13 , and the sealing ring 15 is partially accommodated in the annular groove.
  • the sealing portion may also be a sealing sheet, or other structures with sealing function.
  • a side of the first air guide hole 13 close to the first channel 14 is provided The annular groove is provided, and the sealing ring 15 is accommodated by the annular groove, which can reduce the gap between the first end cover 12 and the valve cylinder 10 on the one hand, and prevent the sealing ring 15 from being offset on the other hand.
  • the first end of the first channel 14 may also be provided with a second annular groove, the second annular groove is coaxial with the first channel 14 and realized together with the annular groove of the first air guide hole 13 The accommodation of the sealing ring 15.
  • the sealing portion further includes a hollow tube 16, the first end of the hollow tube 16 is inserted into the first air guide hole 13, the second end of the hollow tube 16 is inserted into the first end of the first channel 14,
  • the sealing ring 15 is sleeved on the outside of the hollow tube 16.
  • the hollow tube 16 can facilitate the positioning and docking of the first end cover 12 during installation by the staff, and on the other hand, the hollow tube 16 can play a role in the sealing ring 15. Fixed action to prevent it from shifting.
  • an annular groove is provided on the side wall of the hollow tube 16, and the sealing ring 15 is clamped in the annular groove.
  • a first end of the first channel 14 in this embodiment is provided with an accommodating groove, and the second end of the hollow tube 16 passes through the accommodating groove.
  • the hollow tube 16 in this embodiment is in interference fit with the accommodating groove, or the outer wall of the hollow tube 16 is provided with an external thread, the inner wall of the accommodating groove is provided with an internal thread, and the hollow tube 16 and the accommodating groove pass through the external thread and the internal thread Mate connection.
  • the valve core 20 of this embodiment can move along the axial direction of the valve cylinder 10
  • the plurality of passages 11 include D passage, S passage, E passage and C passage, wherein the above four passages 11 are known to those skilled in the art That is, the D passage is used to communicate with the compressor discharge pipe, the S passage is used to communicate with the compressor suction pipe, the E passage is used to communicate with the indoor heat exchanger, and the C passage is used to communicate with the outdoor heat exchanger.
  • the reversing valve The valve body further includes a second end cover 30 , the second end cover 30 is mounted on the second end of the valve cylinder 10 , the second end cover 30 or the valve cylinder 10 is provided with a second air guide hole 52 , and the end wall of the valve cylinder 10 is provided with a second air guide hole 52 .
  • a third channel 31 is opened, the first end of the third channel 31 is arranged corresponding to the second air guide hole 52 and communicated with the second air guide hole 52 , and the second end of the third channel 31 is connected to the side of the passage 11 or the valve cylinder 10 wall connection. Therefore, the communication between the second air guide hole 52 and the third passage 31 replaces the existing pilot valve nozzle set on the outside, and the inner passage of the cylinder wall and the end cover of the valve cylinder 10 is realized.
  • the first air guide hole 13 is not a through hole
  • the first end cover 12 is provided with a second channel 17
  • the first end of the second channel 17 is connected to the first air guide hole 13 .
  • the second end of the second passage 17 communicates with the inner end wall of the first end of the valve cylinder 10
  • the second end of the first passage 14 forms an opening on the side wall of the valve cylinder 10 .
  • the first passage 14 includes a first hole section 141 and a second hole section 142.
  • the first hole section 141 communicates with the first air guide hole 13
  • the second hole section 142 communicates with the first end of the first hole section 141
  • the extension direction of the segment 142 is perpendicular to the axial direction of the valve cylinder 10
  • the second end of the second hole segment 142 forms an opening on the side wall of the valve cylinder 10 , and the opening is used to communicate with the pilot valve 40 .
  • the second end of the third channel 31 passes through the side wall of the valve cylinder 10 and communicates with the pilot valve 40
  • the second end cover 30 is provided with a fourth channel 32
  • the first end of the fourth channel 32 communicates with the second pilot valve 40 .
  • the air holes 52 communicate with each other, and the second end of the fourth passage 32 communicates with the inner end wall of the second end of the valve cylinder 10 .
  • the first channel 14, the first air guide hole 13 and the second channel 17 form the first internal pipeline
  • the third channel 31, the second air guide hole 52 and the fourth channel 32 form the second internal pipeline
  • the pilot valve 40 is installed on the side wall of the valve cylinder 10 at the butt joint with the first channel 14 and the third channel 31.
  • the four capillaries of the pilot valve 40 except for the external pipe connecting the D channel and the S channel, the other two The capillary used to communicate the two ends of the valve cylinder 10 is replaced by the first internal pipeline and the second internal pipeline.
  • the built-in structure of the channel can avoid the damage of the pilot valve nozzle caused by the collision during transportation.
  • disassembling the end cover there is no need to disassemble the external pilot valve connection, which is convenient for disassembly.
  • the first air guide hole 13 is opened on the inner side wall of the first end of the valve cylinder 10, and the second end of the first passage 14 is communicated with the outer side wall of the valve cylinder 10;
  • the second air guide hole 52 is opened on the inner side wall of the second end of the valve cylinder 10, the second end of the third passage 31 is communicated with the outer side wall of the valve cylinder 10, the pilot valve 40 is mounted on the side wall of the valve cylinder 10, and the pilot valve 40
  • the two pipelines are connected to the D channel and the S channel directly through the external pipeline, and the other two pipelines are connected to the two ends of the valve cylinder 10 through the first air guide hole 13 and the second air guide hole 52 respectively through the inner side walls of the two ends of the valve cylinder 10. lumen.
  • the first end cover 12 is provided with a guide hole, the guide hole and the first air guide hole 13 are both through holes, and the guide hole is connected to the first air guide hole of the valve cylinder 10 .
  • the inner cavity of the end communicates with the inner cavity of the second end of the first channel 14 and the inner cavity of the second end of the valve cylinder 10 is communicated.
  • the pilot valve 40 is mounted on the first end cover 12, and the two pipelines of the pilot valve 40 are directly connected to the D passage and the S passage through external pipelines.
  • One of the other two pipelines communicates with the inner cavity of the first end of the valve cylinder 10 through the guide hole, and the other extends through the first channel 14 to the second end of the valve cylinder 10 and communicates with the inner cavity of the second end of the valve cylinder 10 , the first channel 14 can enter the inner cavity from the side wall of the second end of the valve cylinder 10 , and can also enter the inner cavity through the end cover of the second end of the valve cylinder 10 .
  • the first air guide hole 13 a is a through hole opened on the first end cover 12
  • the second end of the first passage 14 a is communicated with the D passage
  • the second air guide hole 52 In order to open a through hole on the second end cover 30, which is not shown in the figure, a third channel 31 is opened on the end wall of the valve cylinder 10, and the first end of the third channel 31 is communicated with the second air guide hole 52.
  • the second ends of the three passages 31 communicate with the S passage, and both the first air guide hole 13 a and the second air guide hole 52 communicate with the pilot valve 40 .
  • the first end cover 12 is provided with a guide hole, the guide hole and the first air guide hole 13 a are both through holes, and the guide hole communicates with the inner cavity of the first end of the valve cylinder 10 .
  • the second end of the first channel 14a communicates with the inner cavity of the second end of the valve cylinder 10 .
  • the pilot valve 40 is mounted on the first end cover 12. The two pipelines of the pilot valve 40 communicate with the D channel and the S channel respectively through the first channel 14a and the third channel 31, and one of the other two pipelines is connected through the diversion channel.
  • the hole communicates with the inner cavity of the first end of the valve cylinder 10 , and the other one extends to the second end of the valve cylinder 10 through the first channel 14a and communicates with the inner cavity of the second end of the valve cylinder 10 .
  • the side walls of the two ends enter the inner cavity, and the end caps at the second end of the valve cylinder 10 can also enter the inner cavity.
  • the pilot valve 40 is installed on the first end cover 12, and the four pipelines of the pilot valve 40 are all located inside the valve body. During the transportation of the whole machine, the built-in structure of the channel can avoid collisions during transportation. Damage to the pilot valve nozzle.
  • the first air guide hole 13 is a through hole opened on the first end cover 12
  • the second end of the first channel 14 is communicated with the side wall of the valve cylinder 10
  • the second air guide hole 52 is an open hole.
  • the through hole on the second end cover 30 and the end wall of the valve cylinder 10 are provided with a third channel 31
  • the first end of the third channel 31 communicates with the second air guide hole 52
  • the second end of the third channel 31 communicates with The side walls of the valve cylinder 10 communicate with each other.
  • the pilot valve 40 can be installed on the first end cover 12, and the second end of the first passage 14 and the second end of the third passage 31 respectively protrude from the pipe to communicate with the D passage and the S passage.
  • the setting of the channel makes the length of the pipe connecting the D channel and the S channel very short, which is convenient for transportation.
  • the pilot valve 40 can also be installed on the side wall of the valve cylinder 10.
  • the second end of the first passage 14 and the second end of the third passage 31 respectively extend out of the pipes to communicate with the pilot valve 40.
  • the first air guide holes 13 and the second The air guide holes 52 are respectively communicated with the two ends of the inside of the valve cylinder 10 through the connecting pipe, so that the length of the connecting pipe connecting the two ends of the valve cylinder 10 is very short, which is convenient for transportation.
  • the plurality of passages 11 include D passage, S passage, E passage and C passage
  • the valve core 20 is rotatably installed inside the valve cylinder 10
  • the valve cylinder 10 is provided with a first chamber and a second chamber which are separated from each other
  • the first chamber is provided with a control chamber
  • a plurality of passages 11 are all communicated with the second chamber
  • the reversing valve body also includes: a drive
  • the driving part 50 is rotatably arranged in the control chamber, and divides the control chamber into two pressure chambers 51
  • the driving part 50 is fixedly connected with the valve core 20
  • the pressure difference between the two pressure chambers 51 can drive the driving part 50 .
  • the driving part 50 drives the valve core 20 to rotate, and the end of the driving part 50 is pivotally connected to the end wall of the first chamber; the first end cover 12 is provided with a first air guide hole 13b and a second air guide hole 52.
  • a third channel 31 is opened on the end wall.
  • the first end of the third channel 31 is arranged corresponding to the second air guide hole 52 and communicates with the second air guide hole 52.
  • the first air guide hole 13b and the second air guide hole 52 are both open.
  • the through hole on the first end cover 12 communicates with the pilot valve 40, the second end of the first channel 14 communicates with the D channel; the second end of the third channel 31 communicates with the S channel, and the second end of the first channel 14 communicates with the S channel.
  • the first end cover 12 is provided with a third air guide hole 53 and a fourth air guide hole 54 (scheme in FIG. 4 ) or the first end of the valve cylinder 10 is provided with a third air guide hole 53 and The fourth air guide hole 54, (the scheme in FIG. 4) the third air guide hole 53 and the fourth air guide hole 54 are in communication with the two pressure chambers 51 in one-to-one correspondence, and the third air guide hole 53 and the fourth air guide hole 54 are used to communicate the guide valve 40.
  • the pilot valve 40 is installed on the first end cover 12
  • the driving part 50 includes a driving plate
  • the driving plate is fixed on the end of the valve core 20
  • the driving plate is rotatably arranged in the control cavity and separates the control cavity
  • the first pressure chamber and the second pressure chamber are formed, and the rotating shaft of the driving plate is coaxial with the valve core 20 .
  • the third air guide hole 53 communicates with the first pressure chamber
  • the fourth air guide hole 54 communicates with the second pressure chamber.
  • the pilot valve 40 generates relatively high pressure and low pressure in the first pressure chamber and the second pressure chamber respectively, thereby pushing
  • the driving plate rotates and drives the valve core 20 to rotate to realize the reversing function
  • the two pipelines of the pilot valve 40 for connecting the D channel and the S channel are located inside the valve cylinder 10, thereby reducing the length of the external pipeline.
  • the built-in channel can avoid the damage of the pilot valve nozzle caused by the collision during transportation.
  • a fourth channel 32 is opened on the end wall of the valve cylinder 10 , the first end of the fourth channel 32 is communicated with the second air guide hole 52 , and the second end of the fourth channel 32 is communicated with the S channel.
  • an embodiment of the present application provides a reversing valve, and the reversing valve of this embodiment includes the foregoing reversing valve valve body.
  • the first end cover 12 of the valve body of the reversing valve of the present application or the first end of the valve cylinder 10 is provided with a first air guide hole 13, and the end wall of the valve cylinder 10 is clamped with a first channel 14, which passes through the first air guide hole.
  • the connection between 13 and the first channel 14 can replace the existing pilot valve nozzle set on the outside, and realize the inner channel circulation of the cylinder wall and the end cover of the valve cylinder 10.
  • the built-in structure of the channel can also be avoided. Damage to the pilot valve nozzle due to collision during transportation.

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Abstract

一种换向阀阀体及具有其的换向阀，换向阀阀体包括：阀筒（10），阀筒（10）上设置有多个通路（11），阀筒（10）内部用于安装阀芯（20），驱动阀芯（20）能够可选择地使得多个通路（11）中的至少两个连通；第一端盖（12），第一端盖（12）安装在阀筒（10）的第一端，第一端盖（12）或阀筒（10）的第一端开设有第一导气孔（13）；阀筒（10）的侧壁上开设有第一通道（14），第一通道（14）的第一端与第一导气孔（13）对应设置，并与第一导气孔（13）连通，第一通道（14）的第二端与通路（11）或阀筒（10）的外侧壁或阀筒（10）的内侧壁连通。

Description

换向阀阀体及具有其的换向阀 技术领域
本申请涉及换向阀设备技术领域，具体而言，涉及一种换向阀阀体及具有其的换向阀。
背景技术
四通换向阀是热泵空调常用的换向阀件，通过改变压缩机排气和回气流向，实现夏天制冷，冬天制热。
目前的可拆卸式四通换向阀带有端盖，在维修时端盖可以拆卸。导阀安装在筒体侧壁，导阀的接管安装在端盖外侧。为了方便拆卸维修，导阀的接管与端盖的连接通常采用螺纹连接。另一种情况，导阀安装在端盖上面，而导阀的接管必须要连接主阀的接管。以上两种情况，拆卸端盖时，都必须先拆掉导阀接管。尤其是对于新型环保可燃制冷剂，一般要求管路连接部位必须是焊接，而不能采用螺纹连接。如果采用焊接连接，后期如果要拆卸端盖非常麻烦，往往需要火炬枪、氧气以及乙炔等才可实现拆卸，且外部管路过多，也会导致搬运过程易发生损坏。
申请内容
本申请的主要目的在于提供一种换向阀阀体及具有其的换向阀，以解决现有技术中的换向阀阀体外部管路多，导致的搬运及更换困难的问题。
为了实现上述目的，根据本申请的一个方面，提供了一种换向阀阀体，换向阀阀体包括：阀筒，阀筒上设置有多个通路，阀筒内部用于安装阀芯，驱动阀芯能够可选择地使得多个通路中的至少两个连通；第一端盖，第一端盖安装在阀筒的第一端，第一端盖或阀筒的第一端开设有第一导气孔；阀筒的侧壁上开设有第一通道，第一通道的第一端与第一导气孔对应设置，并与第一导气孔连通，第一通道的第二端与通路或阀筒的外侧壁或阀筒的内侧壁连通。
进一步地，第一导气孔与第一通道的第一端之间设置有密封部，以密封第一导气孔与第一通道之间的间隙。
进一步地，密封部包括密封圈，第一导气孔的靠近第一通道的一侧设置有环形凹槽，环形凹槽与第一导气孔同轴，密封圈部分地容纳在环形凹槽。
进一步地，密封部还包括空心管，空心管的第一端插入第一导气孔，空心管的第二端插入第一通道的第一端，密封部套设在空心管的外部。
进一步地，第一通道的第一端设置有容纳槽，空心管的第二端穿设在容纳槽中。
进一步地，空心管与容纳槽过盈配合，或，空心管的外壁设置有外螺纹，容纳槽的内壁设置有内螺纹，空心管与容纳槽通过外螺纹与内螺纹配合连接。
进一步地，阀芯能够沿阀筒的轴向移动，多个通路包括D通路、S通路、E通路及C通路，其中，换向阀阀体还包括第二端盖，第二端盖安装在阀筒的第二端，第二端盖或阀筒上开设有第二导气孔，阀筒的端壁上开设有第三通道，第三通道的第一端与第二导气孔对应设置，并与第二导气孔连通，第三通道的第二端与通路或阀筒的侧壁连通。
进一步地，第一端盖上设置有第二通道，第二通道的第一端与第一导气孔连通，第二通道的第二端与阀筒第一端的内部端壁连通，第一通道的第二端在阀筒的侧壁上形成开口；第三通道的第二端穿出阀筒的侧壁与导阀连通，第二端盖上设置有第四通道，第四通道的第一端与第二导气孔连通，第四通道的第二端与阀筒的第二端的内部端壁连通。
进一步地，第一导气孔开设在阀筒的第一端的内侧壁上，第一通道的第二端与阀筒的外侧壁连通；第二导气孔开设在阀筒的第二端的内侧壁上，第三通道的第二端与阀筒的外侧壁连通。
进一步地，第一端盖上设置有导流孔，导流孔与第一导气孔均为通孔，导流孔与阀筒的第一端的内腔连通，第一通道的第二端与阀筒的第二端的内腔连通。
进一步地，第一导气孔为开在第一端盖上的通孔，第一通道的第二端与D通路连通，第二导气孔为开在第二端盖上的通孔，第三通道的第一端与第二导气孔连通，第三通道的第二端与S通路连通，第一导气孔与第二导气孔均与导阀连通。
进一步地，第一导气孔为开在第一端盖上的通孔，第一通道的第二端与阀筒的侧壁连通，第二导气孔为开在第二端盖上的通孔，第三通道的第一端与第二导气孔连通，第三通道的第二端与阀筒的侧壁连通。
进一步地，多个通路包括D通路、S通路、E通路及C通路，阀芯可转动地安装在阀筒内部，阀筒内部设置有彼此分隔开的第一腔室和第二腔室，第一腔室内部设置有控制腔，多个通路均与第二腔室连通，换向阀阀体还包括：驱动部，驱动部可转动地设置在控制腔内，且将控制腔分隔成两个压腔，驱动部与阀芯固定连接，两个压腔之间的压差能够驱动驱动部带动阀芯旋转，驱动部的端部枢接在第一腔室的端壁中；第一端盖上设置有第一导气孔和第二导气孔，阀筒的端壁上开设有第三通道，第三通道的第一端与第二导气孔对应设置，并与第二导气孔连通，第一导气孔与第二导气孔均为开在第一端盖上的通孔，并与导阀连通，第一通道的第二端与D通路连通，第三通道的第二端和S通路连通，第一通道的第一端与第一导气孔连通；第一端盖设置有第三导气孔及第四导气孔或阀筒的第一端设置有第三导气孔及第四导气孔，第三导气孔及第四导气孔一一对应地与两个压腔连通，第三导气孔及第四导气孔用于连通导阀。
根据本申请的另一个方面，提供了一种换向阀，该换向阀包括上述换向阀阀体。
应用本申请的技术方案，本申请的换向阀阀体的第一端盖或阀筒的第一端设置有第一导气孔，阀筒的端壁上卡设有第一通道，通过第一导气孔与第一通道的连通，可取代已有的设 置在外部的导阀接管，实现阀筒筒壁及端盖的内通道流通，在整机运输过程中，通道的内置结构也可避免运输过程中发生碰撞导致的导阀接管的损坏。
附图说明
构成本申请的一部分的说明书附图用来提供对本申请的进一步理解，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1示意性示出了本申请的换向阀的第一导气孔不为通孔的实施例的结构图；
图2示意性示出了图1的换向阀的实施例的剖视图；
图3示意性示出了本申请的换向阀的第一导气孔为通孔的实施例的剖视图；
图4示意性示出了本申请的换向阀具有驱动部的实施例的内部结构图。
其中，上述附图包括以下附图标记：
10、阀筒；11、通路；12、第一端盖；13、第一导气孔；13a、第一导气孔；13b、第一导气孔；14、第一通道；14a、第一通道；141、第一孔段；142、第二孔段；15、密封圈；16、空心管；17、第二通道；20、阀芯；30、第二端盖；31、第三通道；32、第四通道；40、导阀；50、驱动部；51、压腔；52、第二导气孔；53、第三导气孔；54、第四导气孔。
具体实施方式
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本申请。
正如背景技术中所记载的，目前的可拆卸式四通换向阀带有端盖，在维修时端盖可以拆卸。导阀安装在筒体侧壁，导阀的接管安装在端盖外侧。为了方便拆卸维修，导阀的接管与端盖的连接通常采用螺纹连接。另一种情况，导阀安装在端盖上面，而导阀的接管必须要连接主阀的接管。以上两种情况，拆卸端盖时，都必须先拆掉导阀接管。尤其是对于新型环保可燃制冷剂，一般要求管路连接部位必须是焊接，而不能采用螺纹连接。如果采用焊接连接，后期如果要拆卸端盖非常麻烦，往往需要火炬枪、氧气以及乙炔等才可实现拆卸。
为了解决上述问题，参见图1至图4所示，本申请的实施例提供了一种换向阀阀体，换向阀阀体包括阀筒10、第一端盖12，其中，阀筒10上设置有多个通路11，阀筒10内部用于安装阀芯20，驱动阀芯20能够可选择地使得多个通路11中的至少两个连通；第一端盖12安装在阀筒10的第一端，第一端盖12或阀筒10的第一端开设有第一导气孔13；阀筒10的侧壁上开设有第一通道14，第一通道14的第一端与第一导气孔13对应设置，并与第一导气孔13连通，第一通道14的第二端与通路11或阀筒10的外侧壁连通或阀筒10的内侧壁连通。本申请的换向阀阀体的第一端盖12上设置有第一导气孔13，阀筒10的端壁上开设有第一通道14，通过第一导气孔13与第一通道14的连通，可取代已有的设置在外部的导阀接管，实 现阀筒10筒壁及端盖的内通道流通，在整机运输过程中，通道的内置结构也可避免运输过程中发生碰撞导致的导阀接管的损坏。其中，第一端盖12可拆卸地安装在阀筒10的第一端，在进行拆卸端盖时，无需拆卸外部的导阀接管，拆卸方便。
在第一端盖12与阀筒10的第一端内部之间设置内部通道，由于第一导气孔13与第一通道14的第一端之间存在缝隙，易出现从两者之间的缝隙漏气的情况，为此，本实施例中的第一导气孔13与第一通道14的第一端之间设置有密封部，以密封第一导气孔13与第一通道14之间的间隙。通过设置密封部对第一导气孔13与第一通道14的第一端对接处的缝隙进行密封，保证内部通道的密封性能。
具体来说，本实施例中的密封部包括密封圈15，第一导气孔13的靠近第一通道14的一侧设置有环形凹槽，环形凹槽与第一导气孔13同轴，密封圈15部分地容纳在环形凹槽。在其他实施例中密封部还可为密封片，或其他具有密封功能的结构，为了给密封圈15提供容纳空间，本实施例中在第一导气孔13的靠近第一通道14的一侧设置了环形凹槽，通过环形凹槽对密封圈15进行容纳，一方面可以减小第一端盖12与阀筒10之间的缝隙，另一方面可以防止密封圈15发生偏移。在另一种实施例中，第一通道14的第一端也可设置第二环形凹槽，第二环形凹槽与第一通道14同轴，与第一导气孔13的环形凹槽共同实现对密封圈15的容纳。
为了进一步地防止密封圈15发生偏移，密封部还包括空心管16，空心管16的第一端插入第一导气孔13，空心管16的第二端插入第一通道14的第一端，密封圈15套设在空心管16的外部，一方面通过空心管16可以便于工作人员进行安装时，对第一端盖12的定位对接，另一方面通过空心管16可对密封圈15起到固定作用，防止其发生偏移。在一种优选地实施例中，空心管16的侧壁上设置有环形槽，密封圈15卡在环形槽中。
为了给空心管16提供足够的安装空间，本实施例中的第一通道14的第一端设置有容纳槽，空心管16的第二端穿设在容纳槽中。其中，本实施例中的空心管16与容纳槽过盈配合，或，空心管16的外壁设置有外螺纹，容纳槽的内壁设置有内螺纹，空心管16与容纳槽通过外螺纹与内螺纹配合连接。
其中，本实施例的阀芯20能够沿阀筒10的轴向移动，多个通路11包括D通路、S通路、E通路及C通路，其中，上述四个通路11为本领域技术人员所知的，即D通路用于连通压缩机排气管，S通路用于连通压缩机吸气管，E通路用于连通室内热交换器，C通路用于连通室外热交换器，其中，换向阀阀体还包括第二端盖30，第二端盖30安装在阀筒10的第二端，第二端盖30或阀筒10上开设有第二导气孔52，阀筒10的端壁上开设有第三通道31，第三通道31的第一端与第二导气孔52对应设置，并与第二导气孔52连通，第三通道31的第二端与通路11或阀筒10的侧壁连通。从而通过第二导气孔52与第三通道31的连通，取代已有的设置在外部的导阀接管，实现阀筒10筒壁及端盖的内通道流通。
在一种实施例中，如图2所示，第一导气孔13不为通孔，第一端盖12上设置有第二通道17，第二通道17的第一端与第一导气孔13连通，第二通道17的第二端与阀筒10第一端的内部端壁连通，第一通道14的第二端在阀筒10的侧壁上形成开口。第一通道14包括第一 孔段141和第二孔段142，第一孔段141与第一导气孔13连通，第二孔段142与第一孔段141的第一端连通，第二孔段142的延伸方向垂直于阀筒10的轴线方向，第二孔段142的第二端在阀筒10的侧壁上形成开口，开口用于与导阀40连通。优选地，第三通道31的第二端穿出阀筒10的侧壁与导阀40连通，第二端盖30上设置有第四通道32，第四通道32的第一端与第二导气孔52连通，第四通道32的第二端与阀筒10的第二端的内部端壁连通。在本实施例中，第一通道14、第一导气孔13及第二通道17组成第一内部管路，第三通道31、第二导气孔52及第四通道32组成第二内部管路，导阀40安装于阀筒10侧壁的与第一通道14及第三通道31对接处，导阀40的四个毛细管中，除用于连接D通路及S通路的外部接管外，其他两个用于连通阀筒10两端的毛细管被第一内部管路及第二内部管路所替代，在整机运输过程中，通道的内置结构可避免运输过程中发生碰撞导致的导阀接管的损坏，在进行拆卸端盖时，无需拆卸外部的导阀接管，拆卸方便。
在另一种实施例中，图中未示出，第一导气孔13开设在阀筒10的第一端的内侧壁上，第一通道14的第二端与阀筒10的外侧壁连通；第二导气孔52开设在阀筒10的第二端的内侧壁上，第三通道31的第二端与阀筒10的外侧壁连通，导阀40装在阀筒10侧壁上，导阀40的两个管路与D通路，S通路直接通过外部管路连通，另两个管路通过第一导气孔13及第二导气孔52分别经过阀筒10两端的内侧壁连通阀筒10两端的内腔。
在又一种实施例中，图中未示出，第一端盖12上设置有导流孔，导流孔与第一导气孔13均为通孔，导流孔与阀筒10的第一端的内腔连通，第一通道14的第二端与阀筒10的第二端的内腔连通。导阀40装在第一端盖12上，导阀40的两个管路与D通路，S通路直接通过外部管路连通。另两个管路中的一个通过导流孔连通阀筒10第一端的内腔，另一个通过第一通道14引伸至阀筒10的第二端与阀筒10的第二端的内腔连通，第一通道14可以从阀筒10第二端的侧壁进入内腔，也可通过阀筒10的第二端的端盖进入内腔。
在另一种实施例中，如图3所示，第一导气孔13a为开在第一端盖12上的通孔，第一通道14a的第二端与D通路连通，第二导气孔52为开在第二端盖30上的通孔，图中未示出，阀筒10的端壁上开设有第三通道31，第三通道31的第一端与第二导气孔52连通，第三通道31的第二端与S通路连通，第一导气孔13a与第二导气孔52均与导阀40连通。在一种优选地实施例中，第一端盖12上设置有导流孔，导流孔与第一导气孔13a均为通孔，导流孔与阀筒10的第一端的内腔连通，第一通道14a的第二端与阀筒10的第二端的内腔连通。导阀40装在第一端盖12上，导阀40的两个管路与D通路，S通路分别通过第一通道14a及第三通道31连通，另两个管路中的一个通过导流孔连通阀筒10第一端的内腔，另一个通过第一通道14a引伸至阀筒10的第二端与阀筒10的第二端的内腔连通，第一通道14a可以从阀筒10第二端的侧壁进入内腔，也可通过阀筒10的第二端的端盖进入内腔。在本实施例中，导阀40安装于第一端盖12，导阀40的四个管路均位于阀体内部，在整机运输过程中，通道的内置结构可避免运输过程中发生碰撞导致的导阀接管的损坏。
在又一种实施例中，第一导气孔13为开在第一端盖12上的通孔，第一通道14的第二端与阀筒10的侧壁连通，第二导气孔52为开在第二端盖30上的通孔，阀筒10的端壁上开设 有第三通道31，第三通道31的第一端与第二导气孔52连通，第三通道31的第二端与阀筒10的侧壁连通。在本实施例中，导阀40可安装在第一端盖12上，第一通道14的第二端及第三通道31的第二端分别伸出接管与D通路和S通路连通，通过内部通道的设置，使得连通D通路和S通路的接管长度很短，便于运输。导阀40也可安装在阀筒10的侧壁上，第一通道14的第二端及第三通道31的第二端分别伸出接管与导阀40连通，第一导气孔13及第二导气孔52分别通过接管与阀筒10内部的两端连通，使得连通阀筒10两端的接管长度很短，便于运输。
参见图4所示，在一种可转动阀芯的实施例中，多个通路11包括D通路、S通路、E通路及C通路，阀芯20可转动地安装在阀筒10内部，阀筒10内部设置有彼此分隔开的第一腔室和第二腔室，第一腔室内部设置有控制腔，多个通路11均与第二腔室连通，换向阀阀体还包括：驱动部50，驱动部50可转动地设置在控制腔内，且将控制腔分隔成两个压腔51，驱动部50与阀芯20固定连接，两个压腔51之间的压差能够驱动驱动部50带动阀芯20旋转，驱动部50的端部枢接在第一腔室的端壁中；第一端盖12上设置有第一导气孔13b和第二导气孔52，阀筒10的端壁上开设有第三通道31，第三通道31的第一端与第二导气孔52对应设置，并与第二导气孔52连通，第一导气孔13b与第二导气孔52均为开在第一端盖12上的通孔，并与导阀40连通，第一通道14的第二端与D通路连通；第三通道31的第二端和S通路连通，第一通道14的第一端与第一导气孔13b连通；第一端盖12设置有第三导气孔53及第四导气孔54(图4中方案)或阀筒10的第一端设置有第三导气孔53及第四导气孔54，(图4中方案)第三导气孔53及第四导气孔54一一对应地与两个压腔51连通，第三导气孔53及第四导气孔54用于连通导阀40。本实施例中导阀40安装在第一端盖12上，驱动部50包括驱动板，驱动板固定在阀芯20的端部，驱动板可转动地设置在控制腔中，并将控制腔分隔成第一压腔和第二压腔，驱动板的转动轴与阀芯20同轴。通过第三导气孔53与第一压腔连通，第四导气孔54与第二压腔连通，通过导阀40在第一压腔和第二压腔中分别产生相对的高压和低压，进而推动驱动板转动，并带动阀芯20转动，实现换向功能，且导阀40用于连通D通路和S通路的两个管路处于阀筒10内部，从而减少了外部管路的长度，在整机运输过程中，通道的内置可避免运输过程中发生碰撞导致的导阀接管的损坏。进一步地，阀筒10的端壁上开设有第四通道32，第四通道32的第一端与第二导气孔52连通，第四通道32的第二端与S通路连通。
根据本申请的另一个方面，本申请的实施例提供了一种换向阀，本实施例的换向阀包括上述换向阀阀体。
从以上的描述中，可以看出，本申请上述的实施例实现了如下技术效果：
本申请的换向阀阀体的第一端盖12或阀筒10的第一端设置有第一导气孔13，阀筒10的端壁上卡设有第一通道14，通过第一导气孔13与第一通道14的连通，可取代已有的设置在外部的导阀接管，实现阀筒10筒壁及端盖的内通道流通，在整机运输过程中，通道的内置结构也可避免运输过程中发生碰撞导致的导阀接管的损坏。
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (14)

  1. 一种换向阀阀体，其特征在于，所述换向阀阀体包括：
    阀筒(10)，所述阀筒(10)上设置有多个通路(11)，所述阀筒(10)内部用于安装阀芯(20)，驱动所述阀芯(20)能够可选择地使得多个通路(11)中的至少两个连通；
    第一端盖(12)，所述第一端盖(12)安装在所述阀筒(10)的第一端，所述第一端盖(12)或所述阀筒(10)的第一端开设有第一导气孔(13)；
    所述阀筒(10)的侧壁上开设有第一通道(14)，所述第一通道(14)的第一端与所述第一导气孔(13)对应设置，并与所述第一导气孔(13)连通，所述第一通道(14)的第二端与所述通路(11)或所述阀筒(10)的外侧壁或所述阀筒(10)的内侧壁连通。
  2. 根据权利要求1所述的换向阀阀体，其特征在于，所述第一导气孔(13)与所述第一通道(14)的第一端之间设置有密封部，以密封所述第一导气孔(13)与所述第一通道(14)之间的间隙。
  3. 根据权利要求2所述的换向阀阀体，其特征在于，所述密封部包括密封圈(15)，所述第一导气孔(13)的靠近所述第一通道(14)的一侧设置有环形凹槽，所述环形凹槽与所述第一导气孔(13)同轴，所述密封圈(15)部分地容纳在所述环形凹槽。
  4. 根据权利要求2所述的换向阀阀体，其特征在于，所述密封部还包括空心管(16)，所述空心管(16)的第一端插入所述第一导气孔(13)，所述空心管(16)的第二端插入所述第一通道(14)的第一端，所述密封部套设在所述空心管(16)的外部。
  5. 根据权利要求4所述的换向阀阀体，其特征在于，所述第一通道(14)的第一端设置有容纳槽，所述空心管(16)的第二端穿设在所述容纳槽中。
  6. 根据权利要求5所述的换向阀阀体，其特征在于，所述空心管(16)与所述容纳槽过盈配合，或，所述空心管(16)的外壁设置有外螺纹，所述容纳槽的内壁设置有内螺纹，所述空心管(16)与所述容纳槽通过外螺纹与内螺纹配合连接。
  7. 根据权利要求1所述的换向阀阀体，其特征在于，所述阀芯(20)能够沿所述阀筒(10)的轴向移动，多个所述通路包括D通路、S通路、E通路及C通路，其中，所述换向阀阀体还包括第二端盖(30)，所述第二端盖(30)安装在所述阀筒(10)的第二端，所述第二端盖(30)或所述阀筒(10)上开设有第二导气孔(52)，所述阀筒(10)的端壁上开设有第三通道(31)，所述第三通道(31)的第一端与所述第二导气孔(52)对应设置，并与所述第二导气孔(52)连通，所述第三通道(31)的第二端与所述通路(11)或所述阀筒(10)的侧壁连通。
  8. 根据权利要求7所述的换向阀阀体，其特征在于，所述第一端盖(12)上设置有第二通道(17)，所述第二通道(17)的第一端与所述第一导气孔(13)连通，所述第二通道(17)的第二端与所述阀筒(10)第一端的内部端壁连通，所述第一通道(14)的第二端在所述阀筒(10)的侧壁上形成开口；所述第三通道(31)的第二端穿出所述阀筒(10)的 侧壁与导阀(40)连通，所述第二端盖(30)上设置有第四通道(32)，所述第四通道(32)的第一端与所述第二导气孔(52)连通，所述第四通道(32)的第二端与所述阀筒(10)的第二端的内部端壁连通。
  9. 根据权利要求7所述的换向阀阀体，其特征在于，所述第一导气孔(13)开设在所述阀筒(10)的第一端的内侧壁上，所述第一通道(14)的第二端与所述阀筒(10)的外侧壁连通；所述第二导气孔(52)开设在所述阀筒(10)的第二端的内侧壁上，所述第三通道(31)的第二端与所述阀筒(10)的外侧壁连通。
  10. 根据权利要求1所述的换向阀阀体，其特征在于，所述第一端盖(12)上设置有导流孔，所述导流孔与所述第一导气孔(13)均为通孔，所述导流孔与所述阀筒(10)的第一端的内腔连通，所述第一通道(14)的第二端与所述阀筒(10)的第二端的内腔连通。
  11. 根据权利要求7所述的换向阀阀体，其特征在于，所述第一导气孔(13a)为开在所述第一端盖(12)上的通孔，所述第一通道(14a)的第二端与D通路连通，所述第二导气孔(52)为开在所述第二端盖(30)上的通孔，所述第三通道(31)的第一端与所述第二导气孔(52)连通，所述第三通道(31)的第二端与S通路连通，所述第一导气孔(13a)与所述第二导气孔(52)均与导阀(40)连通。
  12. 根据权利要求7所述的换向阀阀体，其特征在于，所述第一导气孔(13)为开在所述第一端盖(12)上的通孔，所述第一通道(14)的第二端与所述阀筒(10)的侧壁连通，所述第二导气孔(52)为开在所述第二端盖(30)上的通孔，所述第三通道(31)的第一端与所述第二导气孔(52)连通，所述第三通道(31)的第二端与所述阀筒(10)的侧壁连通。
  13. 根据权利要求1所述的换向阀阀体，其特征在于，多个所述通路包括D通路、S通路、E通路及C通路，所述阀芯(20)可转动地安装在所述阀筒(10)内部，所述阀筒(10)内部设置有彼此分隔开的第一腔室和第二腔室，所述第一腔室内部设置有控制腔，多个所述通路(11)均与所述第二腔室连通，所述换向阀阀体还包括：
    驱动部(50)，所述驱动部(50)可转动地设置在所述控制腔内，且将所述控制腔分隔成两个压腔(51)，所述驱动部(50)与所述阀芯(20)固定连接，两个所述压腔(51)之间的压差能够驱动所述驱动部(50)带动所述阀芯(20)旋转，所述驱动部(50)的端部枢接在所述第一腔室的端壁中；
    所述第一端盖(12)上设置有第一导气孔(13b)和第二导气孔(52)，所述阀筒(10)的端壁上开设有第三通道(31)，所述第三通道(31)的第一端与所述第二导气孔(52)对应设置，并与所述第二导气孔(52)连通，所述第一导气孔(13b)与第二导气孔(52)均为开在所述第一端盖(12)上的通孔，并与导阀(40)连通，所述第一通道(14)的第二端与D通路连通，所述第三通道(31)的第二端和S通路连通，所述第一通道(14)的第一端与所述第一导气孔(13b)连通；
    所述第一端盖(12)设置有第三导气孔(53)及第四导气孔(54)或所述阀筒(10)的第一端设置有第三导气孔(53)及第四导气孔(54)，所述第三导气孔(53)及所述第四导气孔(54)一一对应地与两个所述压腔(51)连通，所述第三导气孔(53)及所述第四导气孔(54)用于连通导阀(40)。
  14. 一种换向阀，其特征在于，所述换向阀包括换向阀阀体，所述换向阀阀体为权利要求1至权利要求13中任一项所述的换向阀阀体。
PCT/CN2021/106126 2020-08-20 2021-07-13 换向阀阀体及具有其的换向阀 WO2022037325A1 (zh)

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