CN213929625U - Valve assembly - Google Patents

Abstract

The utility model discloses a valve assembly, including the valve body, the solenoid valve case, at least part of solenoid valve case is located the installation cavity, the valve body includes first runner, first interface, the second runner, the second interface, the valve assembly has valve chamber and choke, first runner communicates with the valve chamber, the valve body includes first connecting runner and second connecting runner, the choke can communicate first connecting runner and valve chamber, when the solenoid valve case opens, first connecting runner communicates with the installation cavity, the second connecting runner communicates with the second runner, when the solenoid valve case closes, first connecting runner blocks with the installation cavity, the second connecting runner blocks with the second runner; the valve body also comprises a third flow passage and a third interface, the third interface is an inlet of the third flow passage, and the third flow passage is communicated with the second flow passage; the valve component has the advantages that the valve component has throttling and fluid communication functions, and the cost is low.

Description

Valve assembly

Technical Field

The utility model relates to a valve module.

Background

Vehicle air conditioning systems, particularly electric vehicle air conditioning systems, typically have two modes, cooling and heating. Air conditioning systems having a cooling mode and a heating mode are also called heat pump systems. The heat pump system has a compressor, a first indoor heat exchanger, a second indoor heat exchanger, an outdoor heat exchanger, and a plurality of valve parts, such as solenoid valves, valve assemblies, and the like.

In a refrigeration system, one of the heat exchangers functions as an evaporator, and one of the heat exchangers functions as a condenser, and a refrigeration mode and a heating mode are realized by switching flow paths.

In a refrigeration mode, the first indoor heat exchanger located at the downstream of the valve assembly serves as an evaporator, the outdoor heat exchanger serves as a condenser, the second indoor heat exchanger does not work, and at the moment, high-pressure refrigerant discharged from the compressor passes through the outdoor heat exchanger, the pipeline connecting block, the valve assembly, the first indoor heat exchanger and then returns to the compressor.

In the heating mode, the refrigerant circuit generates a reverse flow. At this time, since the valve assembly cannot perform reverse throttling operation, a bypass line and a throttling element are separately provided on the basis of the original refrigeration circuit in heating. On the heating loop, after the high-pressure refrigerant at the outlet of the second indoor heat exchanger is throttled and depressurized by the valve assembly, the refrigerant flows into the outdoor heat exchanger through the communicated bypass pipeline and the pipeline connecting block.

Thus, the number of system components is increased, and the product cost is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lower valve module of cost with bypass runner. In order to realize the purpose, the following technical scheme is adopted:

a valve assembly comprises a valve body and a solenoid valve core, wherein the valve body comprises an installation cavity, at least part of the solenoid valve core is positioned in the installation cavity, the valve body comprises a first flow passage and a first interface, the first interface is an inlet of the first flow passage, the valve body comprises a second flow passage and a second interface, the second interface is an outlet of the second flow passage, the valve assembly is provided with a valve chamber, the first flow passage is communicated with the valve chamber, the valve body comprises a first connecting flow passage and a second connecting flow passage, the valve assembly is provided with a throttling opening, the throttling opening can be communicated with the first connecting flow passage and the valve chamber, when the solenoid valve core is opened, the first connecting flow passage is communicated with the installation cavity, the second connecting flow passage is communicated with the second flow passage, and when the solenoid valve core is closed, the first connecting flow passage is blocked from the installation cavity, the second connecting flow passage is blocked from the second flow passage; the valve body further comprises a third flow passage and a third interface, the third interface is an inlet of the third flow passage, and the third flow passage is communicated with the second flow passage.

The utility model discloses above-mentioned technical scheme valve unit's second runner department increases third runner and third interface, when the solenoid valve case is opened, first runner and second runner intercommunication, fluid gets into from first interface, the second interface leaves, this valve unit spare plays the throttle function, when the solenoid valve case is closed, first runner blocks with the second runner, fluid gets into from the third interface, the second interface leaves, this valve unit spare plays the fluid and switches on the function that changes, make the valve unit spare both have the throttle and have the fluid and switch on the function, the export is the second interface when the solenoid valve case is closed or is opened, need not switch over the export, the system spare part quantity of being connected with this valve unit spare has been reduced, valve unit spare manufacturing cost reduces.

Drawings

FIG. 1 is a perspective view of a valve assembly of the present application;

FIG. 2 is a perspective view of the valve assembly of FIG. 1 from another perspective;

FIG. 3 is a schematic front elevational view of a fourth side of the valve assembly of FIG. 1;

FIG. 4 is a cross-sectional view of the D-D surface of the valve assembly of FIG. 3;

FIG. 5 is a first side elevational schematic view of the valve assembly of FIG. 1;

FIG. 6 is a cross-sectional view of the valve assembly shown in FIG. 5 at plane B-B;

FIG. 7 is a cross-sectional view of the valve assembly shown in FIG. 5 at plane C-C;

FIG. 8 is a second side elevational schematic view of the valve assembly of FIG. 1;

FIG. 9 is a third side elevational schematic view of the valve assembly of FIG. 1;

FIG. 10 is a schematic cross-sectional view of the valve assembly shown in FIG. 9 at plane E-E;

FIG. 11 is a front view schematic of a side portion of another valve assembly of the present application;

FIG. 12 is a cross-sectional view of the valve assembly of FIG. 11 taken along plane B-B;

FIG. 13 is a cross-sectional view of the face C-C of the valve assembly of FIG. 11;

FIG. 14 is a front structural view of another side portion of the valve assembly of FIG. 11;

FIG. 15 is a cross-sectional view of the face E-E of the valve assembly of FIG. 14.

Detailed Description

Referring to fig. 1-10, fig. 1 illustrates the structure of a valve assembly 100, the valve assembly 100 including a valve body 11, a powerhead assembly 12, a drive rod member 13, a valve cartridge assembly 14, and an adjustment seat assembly 15.

The valve assembly 100 has a solenoid valve spool 16, the valve body 11 has a mounting cavity 123, a portion of the solenoid valve spool 16 is located in the mounting cavity 123, the valve body 11 has a second connecting flow passage 124, and the solenoid valve spool 16 movably connects or blocks the mounting cavity 123 and the second connecting flow passage 124, although the blocking is not limited to a situation where the fluid flow is zero, and the blocking herein allows leakage within a specified range.

Referring to fig. 1 to 3, the valve body 11 includes a first port 111, a second port 112, a third port 113, a fourth port 114, and a fifth port 115. When the solenoid valve spool 16 is connected, fluid enters from the first port 111, exits from the second port 112, and fluid enters from the fourth port 114 and exits from the fifth port 115. When the solenoid spool 16 is blocked, fluid enters the third port 113, exits the second port 112, enters the fourth port 114, and exits the fifth port 115. It should be noted that the valve body 11 is not limited to necessarily include the first port 111, the second port 112, the fourth port 114, and the fifth port 115, and may include only the first port 111 and the second port 112. The second port 112 and the fifth port 115 may also serve as inlets. The first port 111, the second port 112, the third port 113, the fourth port 114, and the fifth port 115 are connected to external piping.

The valve body 11 includes a first side 131, a second side 132, a third side 133, and a fourth side 134, the first side 131 and the second side 132 are oppositely disposed, the third side 133 is disposed adjacent to the first side 131, the fourth side 134 is oppositely disposed from the third side 133, the second port 112 and the fourth port 114 are disposed on the first side 131, the third port 113 is disposed on the second side 132, the first port 111 and the fifth port 115 are disposed on the fourth side 134, and the mounting cavity 123 is disposed on the third side 133.

Referring to fig. 4-6, the top 120 of the valve body 11 is open, and the powerhead assembly 12 is located on the top 120 of the valve body 11; the bottom 125 of the valve body 11 is open and the valve body 11 includes a valve chamber 116 with the cartridge assembly 14 and the adjustment seat assembly 15 at least partially positioned in the valve chamber 116. The valve body 11 includes a first flow passage 117, the first port 111 is a port of the first flow passage 117, the valve body 11 includes a second flow passage 118, and the cartridge assembly 14 regulates flow through the valve chamber 116 to either the first flow passage 117 or the second flow passage 118. The transmission rod member 13 is located inside the valve body 11, and the transmission rod member 13 is in transmission connection with the power head assembly 12 and the valve core assembly 14, that is, the transmission rod member 13 can convert the force of the power head assembly 12 on the transmission rod member 13 into the force of the transmission rod member 13 on the valve core assembly 14, so that the valve core assembly 14 can move up and down under the action of the power head assembly 12. It should be noted that the power head assembly 12 may not be mounted on the valve body 11, and may be disposed outside the valve body 11 in the form of a bulb.

The valve body 11 further includes a valve port 142, the valve port 142 communicates with the valve chamber 116 and the first flow passage 117, the valve port 142 communicates with the first flow passage 117, the first flow passage 117 extends from the first port 111 to the valve chamber 116, and the first flow passage 117 communicates with the valve chamber 116.

The valve core assembly 14 includes a valve core 141, and the valve core 141 may be in the form of a ball, a needle, a table, a cylinder, or the like.

The valve assembly 100 includes a restriction 101, the valve element 141 is movable in an axial direction of the valve assembly 100, the valve element 141 is capable of regulating a flow rate through the restriction 101, a size of the restriction 101 varies with the movement of the valve element 141, the flow rate of the restriction 101 is influenced by a shape of a valve port wall 1161, which may be a slope or other shape.

Referring to fig. 1-10, the valve body 11 further includes a third flow passage 119, the third port 113 is an inlet of the third flow passage 119, and the third flow passage 119 is communicated with the second flow passage 118. The second flow channel 118 includes a first communication port 121, the first communication port 121 is an inlet of the second connection flow channel 124, the third flow channel 119 includes a second communication port 122, the second communication port 122 is an outlet of the third flow channel 119, the first communication port 121 is a communication port of the second flow channel 118 and the second connection flow channel 124, and the second communication port 122 is a communication port of the second flow channel 118 and the third flow channel 119.

According to the technical scheme, the third flow channel and the third interface are additionally arranged at the second flow channel of the valve assembly, when the valve core of the electromagnetic valve is opened, the first flow channel is communicated with the second flow channel, fluid enters from the first interface and leaves from the second interface, the valve assembly has a throttling function, when the valve core of the electromagnetic valve is closed, the first flow channel is blocked from the second flow channel, the fluid enters from the third interface and leaves from the second interface, and the valve assembly has a fluid conduction and change function, so that the valve assembly has the throttling function and the fluid conduction function, outlets are the second interface when the valve core of the electromagnetic valve is closed or opened, the outlets do not need to be switched, the number of parts of a system connected with the valve assembly is reduced, and the production cost of the valve assembly is reduced.

The third flow passage 119 has an end opening area 1191, a communication area 1192, and a small-diameter area 1193, the end opening area 1191 has a third interface 113, the communication area 1192 communicates the end opening area 1191 with the small-diameter area 1193, the small-diameter area 1193 has a second communication opening 122, the inner diameter of the small-diameter area 1193 is not larger than the inner diameter of the communication area 1192, and the aperture of the second communication opening 122 is smaller than the inner diameter of the communication area 1192. The fluid entering from the third port 1113 is prevented from generating a diameter reduction effect when entering the communication region 1192 through the second communication port 122, and a large pressure drop is generated.

The aperture phi 1 of the second communication port 122 is greater than or equal to 1.5mm, the aperture phi 2 of the first communication port 121 is greater than or equal to 3.0mm, optionally, the aperture of the second communication hole is 2mm, the aperture of the first communication hole is 3mm, the valve body 11 has a first side wall 1181 corresponding to the second flow channel 118, the valve body 11 has a second side wall 1194 corresponding to the small-diameter area 1193 of the third flow channel 119, and the distance between the first side wall 1191 and the second side wall 1194 is greater than or equal to 0.5mm, so that secondary throttling caused by too small aperture is prevented.

The valve body 11 further includes a first connection flow passage 126 and a connection hole 1102, the first connection flow passage 126 communicates with the connection hole 1102, the connection hole 1102 communicates with the valve chamber 116, the first connection flow passage 126 communicates with the mounting chamber 123, the first connection flow passage 126 communicates with the connection hole 1102, and when the fluid of the first port 111 enters the first flow passage 117, the fluid throttles through the throttle orifice 101 and then flows into the mounting chamber 123 from the connection hole 1102 and the first connection flow passage 126. The second connecting passage 124 includes a first connecting passage 1241 and a second connecting passage 1242, the first connecting passage 1241 and the second connecting passage 1242 are vertically communicated, and the solenoid valve spool 16 moves to communicate or block the mounting cavity 123 and the second connecting passage 1242, although the blocking is not limited to the case where the fluid flow is zero, and the blocking herein allows a small range of leakage. When the valve core 16 of the solenoid valve is in an open state, the first connecting flow passage 126 is communicated with the mounting cavity 123, the mounting cavity 123 is communicated with the second connecting passage 1242, the second connecting passage 1242 is communicated with the first connecting passage 1241, and fluid leaves from the second port 112 from the first connecting passage 1241 and the second flow passage 118, so that the valve assembly realizes a throttling function;

in another state, the solenoid valve spool 16 is in a closed state, the first connecting passage 126 is blocked from the mounting chamber 123, the mounting chamber 123 is blocked from the second connecting passage 1242, fluid flows from the third port 113 of the valve body 11, enters the second passage 118 through the third passage 119, and exits the valve body 11 from the second port 112. Thus, the valve assembly performs a conduction function.

Referring to fig. 11-15, fig. 11 illustrates the structure of the valve assembly 200, the valve assembly 200 includes a valve body 11, a power head assembly 12, a drive rod member 13, a valve core assembly 14, and an adjustment seat assembly 15. The structure of the valve assembly 200 that is identical to the valve assembly 100 is not described in detail herein, and the valve assembly 200 differs from the valve assembly 100 in that:

the valve body 11 further includes a third flow passage 119 and a third port 113, the third port 113 is a port of the third flow passage 119, and the third flow passage 119 is communicated with the second flow passage 118. The second flow channel 118 includes a first communication port 121, the first communication port 121 is one port of a first connection flow channel 124, the third flow channel 119 includes a second communication port 122, the second communication port 122 is one port of the third flow channel 119, the first communication port 121 is a communication port of the second flow channel 118 and the first connection flow channel 124, and the second communication port 122 is a communication port of the second flow channel 118 and the third flow channel 119.

The third flow passage 119 has an end opening area 1191, a communication area 1192, and a small-diameter area 1193, the end opening area 1191 has a third interface 113, the communication area 1192 communicates the end opening area 1191 with the small-diameter area 1193, the small-diameter area 1193 has a second communication opening 122, the inner diameter of the small-diameter area 1193 is not larger than the inner diameter of the communication area 1192, and the aperture of the second communication opening 122 is smaller than the inner diameter of the communication area 1192. The fluid entering from the third port 1113 is prevented from generating a diameter reduction effect when entering the communication region 1192 through the second communication port 122, and a large pressure drop is generated.

The aperture phi 1 of the second communication port 122 is larger than or equal to 1.5mm, the aperture phi 2 of the first communication port 121 is larger than or equal to 3.0mm, the valve body 11 is provided with a first side wall 1181 corresponding to the second flow channel 118, the valve body 11 is provided with a second side wall 1194 corresponding to a small-diameter area 1193 of the third flow channel 119, the distance between the first side wall 1191 and the second side wall 1194 is larger than or equal to 0.5mm, and secondary throttling caused by over-small aperture is prevented.

The valve assembly 200 further comprises a hole adding plate 19, the hole adding plate 19 is arranged at the joint of the communicating area 1192 and the small-diameter area 1193 and is located in the communicating area 1192, a through hole 191 is formed in the center of the hole adding plate 19, the hole adding plate 19 is fixed on the valve body 11 through riveting, and the fixing mode of the hole adding plate 19 is not limited and can be other fixing modes such as clamping, threaded connection and the like. Aperture D range of the middle through hole 191 of the orifice plate 19: d is more than or equal to 0.4mm and less than or equal to 0.8mm, and the thickness D of the orifice plate 19 is within the range: d is more than or equal to 1mm and less than or equal to 3mm, optional aperture is D0.6 mm, D2 mm, the aperture size of through-hole 191 and the thick ability of orifice plate 19 board according to the ability of actual dehumidification can the independent assortment, and orifice plate 19 in this embodiment plays throttling action, and when the air conditioner was in dehumidification mode, orifice plate 19's setting can replace the throttling function of electronic valve subassembly or ball valve.

The valve assembly 200 also has a second connection flow passage 124, the second connection flow passage 124 includes a first connection passage 1241 and a second connection passage 1242, the first connection passage 1241 and the second connection passage 1242 vertically communicate, the valve body 11 further includes a connection hole 1102, the valve body 11 further includes a first connection flow passage 126, the first connection flow passage 126 communicates with the connection hole 1102, the connection hole 1102 communicates with the valve chamber 116, the first connection flow passage 126 communicates with the installation cavity 123, the first connection flow passage 126 communicates with the connection hole 1102, and when the fluid of the first port 111 enters the first flow passage 117, the fluid flows into the installation cavity 123 through the orifice 101, the connection hole 1102 and the first connection flow passage 126. There is also a solenoid valve spool 16, the valve body 11 has a mounting cavity 123, a portion of the solenoid valve spool 16 is located in the mounting cavity 123, and the solenoid valve spool 16 moves to connect or block the mounting cavity 123 and the second connecting passage 1242, although blocking is not limited to zero fluid flow, and blocking herein allows a small range of leakage. When the solenoid valve spool 16 is in the open state, the first connecting passage 126 communicates with the mounting chamber 123, the mounting chamber 123 communicates with the second connecting passage 1242, the second connecting passage 1242 communicates with the first connecting passage 1241, and the fluid exits from the second port 112 from the first connecting passage 1241 and the second flow passage 118, so that the valve assembly performs the throttling function.

In another state, the solenoid valve spool 16 is in a closed state, the first connecting passage 126 is blocked from the mounting cavity 123, and the solenoid valve spool 16 blocks the mounting cavity 123 from communicating with the second connecting passage 1242. The fluid flows in from the third port of the valve body 11, flows through the through hole 191 in the middle of the orifice plate 19 to realize throttling, then enters the second flow passage 118 from the third flow passage 119, and the fluid leaves the valve body 11 from the second port 112. At this time, the orifice plate 19 may be provided to replace the throttling function of an electronic valve assembly or a ball valve in the heat pump system, and the throttling and conducting functions are realized through the orifice plate 19 and the third flow passage 119.

The valve assembly can be applied to a heat pump system, when the heat pump system is in a refrigeration and dehumidification mode, the valve core of the electromagnetic valve is opened, working medium enters from the first interface of the valve assembly, flows through the second interface after being throttled by the valve assembly, leaves, flows into the fourth interface and finally flows out from the fifth interface;

when the heat pump system is in a heating and dehumidifying mode, the valve core of the electromagnetic valve is closed, the working medium enters from the third interface of the valve assembly and leaves through the second interface, and then flows into the fourth interface and finally flows out of the fifth interface.

It should be noted that: the above embodiments are only used for illustrating the present invention and not for limiting the technical solutions described in the present invention, such as the definition of the directionality of "front", "back", "left", "right", "up", "down", etc., although the present specification has described the present invention in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solutions and modifications can be combined with each other, modified or replaced with equivalents by those skilled in the art, and all the technical solutions and modifications that do not depart from the spirit and scope of the present invention should be covered by the scope of the claims of the present invention.

Claims (9)

1. A valve assembly comprises a valve body and a solenoid valve core, wherein the valve body comprises an installation cavity, at least part of the solenoid valve core is positioned in the installation cavity, the valve body comprises a first flow passage and a first interface, the first interface is an inlet of the first flow passage, the valve body comprises a second flow passage and a second interface, the second interface is an outlet of the second flow passage, the valve assembly is provided with a valve chamber, the first flow passage is communicated with the valve chamber, the valve body comprises a first connecting flow passage and a second connecting flow passage, the valve assembly is provided with a throttling opening, the throttling opening can be communicated with the first connecting flow passage and the valve chamber, when the solenoid valve core is opened, the first connecting flow passage is communicated with the installation cavity, the second connecting flow passage is communicated with the second flow passage, and when the solenoid valve core is closed, the first connecting flow passage is blocked from the installation cavity, the second connecting flow passage is blocked from the second flow passage;

the method is characterized in that: the valve body further comprises a third flow passage and a third interface, the third interface is an inlet of the third flow passage, and the third flow passage is communicated with the second flow passage.

2. The valve assembly of claim 1, wherein: the first channel extends from the first port to the valve chamber, the second channel includes a first communication port, the second channel includes a second communication port, the first communication port is a communication hole of the second channel and the second connection channel, and the second communication port is a communication port of the second channel and the third channel.

3. The valve assembly of claim 2, wherein: the third flow channel is provided with a port area, a communication area and a small-diameter area, the port area is provided with a third interface, the communication area is communicated with the port area and the small-diameter area, the small-diameter area is provided with the second communication port, the inner diameter of the small-diameter area is smaller than or equal to that of the communication area, and the aperture of the second communication port is smaller than that of the communication area.

4. The valve assembly of claim 3, wherein: the aperture phi 1 of the first communication port is larger than or equal to 1.5mm, the aperture phi 2 of the second communication port is larger than or equal to 3.0mm, the valve body is provided with a first side wall corresponding to the second flow channel, the valve body is provided with a second side wall corresponding to the small-diameter area of the third flow channel, and the distance between the first side wall and the second side wall is larger than or equal to 0.5 mm.

5. The valve assembly of claim 3 or 4, wherein: still include with the orifice plate, it locates to add the orifice plate the intercommunication district with path district junction, and be located in the intercommunication district, the center that adds the orifice plate is equipped with the through-hole, add the orifice plate with valve body fixed connection.

6. The valve assembly of claim 5, wherein: add the orifice plate with the valve body passes through the riveting and connects, add the aperture D scope of orifice plate middle through-hole: d is more than or equal to 0.4mm and less than or equal to 0.8mm, and the thickness D range of the pore plate is as follows: d is more than or equal to 1mm and less than or equal to 3 mm.

7. The valve assembly of any of claims 1-4, wherein: the valve body further comprises a connecting hole, the first connecting flow channel is communicated with the installation cavity, the second connecting flow channel comprises a first connecting channel and a second connecting channel, the first connecting channel and the second connecting channel are vertically communicated, the first connecting channel is communicated with the second flow channel, the second connecting channel is communicated with the installation cavity, and the valve core of the electromagnetic valve is communicated or blocked in a moving mode through the installation cavity and the second connecting channel.

8. The valve assembly of claim 7, wherein: the valve body is provided with a fourth port and a fifth port, the valve body is provided with a first side portion, a second side portion, a third side portion and a fourth side portion, the first side portion and the second side portion are arranged oppositely, the third side portion is arranged adjacent to the first side portion, the fourth side portion is arranged opposite to the third side portion, the second port and the fourth port are located on the first side portion, the third port is located on the second side portion, the first port and the fifth port are located on the fourth side portion, and the installation cavity is located on the third side portion.

9. The valve assembly of claim 8, wherein: the valve assembly further comprises a valve core assembly, the valve core assembly comprises a valve core, the valve core is located in the valve chamber, the valve core adjusts the flow passing through the throttling port, the valve assembly further comprises a power head assembly, a transmission rod component and an adjusting seat assembly, the top of the valve body is provided with an opening, and the power head assembly is located at the top of the valve body; the valve body is provided with an opening at the bottom, the valve core assembly and the adjusting seat assembly are at least partially positioned in the valve chamber, the transmission rod component is positioned in the valve body and is in transmission connection with the power head assembly and the valve core assembly.

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