CN218582299U - Reversible electromagnetic valve and air conditioning unit - Google Patents
Reversible electromagnetic valve and air conditioning unit Download PDFInfo
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- CN218582299U CN218582299U CN202121093489.3U CN202121093489U CN218582299U CN 218582299 U CN218582299 U CN 218582299U CN 202121093489 U CN202121093489 U CN 202121093489U CN 218582299 U CN218582299 U CN 218582299U
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Abstract
The utility model relates to a refrigeration technology field especially relates to a reversible solenoid valve and air conditioning unit. A reversible electromagnetic valve comprises a valve body and a valve core assembly, wherein a first communication port and a second communication port are respectively formed in two sides of the valve body, the valve body is provided with a valve cavity, the valve core assembly is arranged in the valve cavity, and the valve core assembly can slide in the valve cavity to enable the first communication port and the second communication port to be communicated or separated; the valve core assembly comprises a piston part, a connecting rod part and a nut, the nut is abutted against the side face, far away from the first communication port, of the piston part, one end, far away from the first communication port, of the connecting rod part penetrates through the piston part and is in threaded connection with the nut, and the piston part and the nut are welded and fixed. The utility model has the advantages that: the strength of the connection between the connecting rod part and the piston part can be enhanced, and the piston part is prevented from falling off from the connecting rod part due to the loosening of the nut.
Description
Technical Field
The utility model relates to a refrigeration technology field especially relates to a reversible solenoid valve and air conditioning unit.
Background
The existing air conditioning unit usually needs to be provided with two modes of refrigeration and heating, the medium flowing directions of the two modes of refrigeration and heating are different, and usually, a cut-off piece is needed to be arranged to control the communication or the partition of a pipeline in the two modes of refrigeration and heating.
When the existing reversible solenoid valve connecting rod component is connected with the piston component through the nut, the nut is easy to loosen, and the connection firmness is affected.
SUMMERY OF THE UTILITY MODEL
Based on this, the present invention provides a reversible solenoid valve, which aims at the technical problems described above, and the technical scheme is as follows:
a reversible electromagnetic valve comprises a valve body and a valve core assembly, wherein a first communicating port and a second communicating port are respectively formed in two sides of the valve body, the valve body is provided with a valve cavity, the valve core assembly is arranged in the valve cavity, and the valve core assembly can slide in the valve cavity to enable the first communicating port and the second communicating port to be communicated or separated; the valve core assembly comprises a piston part, a connecting rod part and a nut, the nut is abutted against the side face, away from the first communication port, of the piston part, one end, away from the first communication port, of the connecting rod part penetrates through the piston part and is in threaded connection with the nut, and the piston part is welded and fixed with the nut.
According to the arrangement, the connection strength between the connecting rod component and the piston component can be enhanced, and the piston component is prevented from falling off from the connecting rod component due to the loosening of the nut.
In one embodiment, the piston member and the nut are fixed by laser welding.
So set up, can strengthen the fastness of welding.
In one embodiment, the connecting rod part comprises a conical section, the outer diameter of the conical section gradually decreases along the direction away from the first communication port, the piston part is provided with a connection hole, and the conical section extends into the connection hole and can be abutted against the inner wall of the connection hole, so that the connecting rod part is hermetically connected with the piston part.
By means of the arrangement, the connecting rod part and the piston part can be connected in a sealing mode, and cross flow caused by medium leakage is prevented.
In one embodiment, the tapered section has a first end and a second end opposite to each other, the first end is disposed near the first communication opening relative to the second end, and the first end has an outer diameter D 1 Is larger than the outer diameter D of the second end 2 The piston part comprises a piston bowl, the outer side wall of the piston bowl is abutted to the inner wall of the valve body, the connecting hole comprises a first hole, the first hole is formed in the piston bowl, and the inner diameter of the first hole is D 3 ，D 1 ＞D 3 ＞D 2 。
So set up, can make piston bowl and toper section form to interfere, strengthen sealed effect.
In one embodiment, an intermediate end cover is arranged in the valve cavity, the intermediate end cover divides the valve cavity into a circulation cavity and a pressure cavity, the circulation cavity can be communicated with the first communication port and the second communication port, the pressure cavity is divided into a first cavity and a second cavity by the piston component, and the first cavity and the second cavity can form a pressure difference to push the piston component to move.
In one embodiment, a side surface of the piston member facing the intermediate cover is provided with a first projection, and the first projection can abut against the intermediate cover when the piston member moves in a direction toward the first communication port and the second communication port; and/or, the valve body is kept away from one end of the first communication port and is provided with a second end cover, the side surface of the piston component facing the second end cover is provided with a second protrusion, and when the piston component moves towards the direction close to the second end cover, the second protrusion can be abutted to the second end cover.
So set up, at the in-process of closing the valve and/or opening the valve, first arch and/or second arch can play backstop limiting displacement.
In one embodiment, the first bulge is annular, a first throttling hole is formed in the side surface of the first bulge, and a medium can enter between the middle end cover and the piston component through the first throttling hole; and/or the second bulge is annular, a second throttling hole is formed in the side surface of the second bulge, and a medium can enter between the piston part and the second end cover through the second throttling hole.
By the arrangement, in the valve opening process, a medium can enter between the middle end cover and the piston part from the first throttling hole, so that the contact area of the medium and the piston part is enlarged, and the piston part can be pushed to move more smoothly; in the process of closing the valve, the medium can enter the space between the piston part and the second end cover from the second throttling hole, so that the contact area between the medium and the piston part is enlarged, and the piston part can be pushed to move more smoothly.
In one embodiment, the outer side wall surface of the middle end cover is provided with a solder groove.
In one embodiment, the middle end cover is provided with a mounting hole, the connecting rod component penetrates through the mounting hole, the inner wall of the mounting hole is provided with a sealing groove, a sealing element is arranged in the sealing groove, and the sealing element is abutted to the connecting rod component.
The utility model discloses still provide following technical scheme:
an air conditioning unit comprises the reversible electromagnetic valve.
Compared with the prior art, the utility model discloses passing through nut threaded connection with connecting rod part and piston part after, carry out welded fastening again to strengthen the joint strength between connecting rod part and the piston part, prevent that the nut is not hard up and make piston part drop from the connecting rod part.
Drawings
Fig. 1 is a first cross-sectional view of a reversible solenoid valve provided by the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a second cross-sectional view of the reversible solenoid valve;
FIG. 4 is a partial cross-sectional view of the connecting rod;
FIG. 5 is a perspective view of a link member;
fig. 6 is a cross-sectional view of the first bowl.
The symbols in the drawings represent the following meanings:
100. a reversible solenoid valve; 10. a valve body; 101. a first communication port; 102. a second communication port; 103. a first connecting pipe; 104. a second connecting pipe; 11. a valve cavity; 111. a flow-through chamber; 112. a pressure chamber; 1121. a first chamber; 1122. a second chamber; 12. a valve seat; 13. a third communication port; 131. a first capillary tube; 14. a fourth communication port; 141. a second capillary tube; 15. a middle end cap; 151. mounting holes; 152. a sealing groove; 153. A seal member; 154. a solder bath; 16. a first end cap; 17. a second end cap; 20. a valve core assembly; 21. A piston member; 201. connecting holes; 211. a piston bowl; 2111. a first bowl; 2112. a second bowl; 2113. a first hole; 212. an intermediate baffle; 2121. a second hole; 213. a first baffle plate; 2131. a first protrusion; 2132. A first orifice; 214. a second baffle; 2141. a second protrusion; 2142. a second orifice; 22. a link member; 221. a connecting rod; 2211. a tapered section; 2011. a first end; 2012. a second end; 222. a guide frame; 23. a slider member; 231. a first part; 232. a second section; 233. an elastic member; 234. a balance hole; 245. an accommodating cavity; 24. a nut; 30. a pilot valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 6, the present invention provides a reversible solenoid valve 100 (hereinafter referred to as a solenoid valve 100) installed in an air conditioning unit for controlling the connection or disconnection of a pipeline.
The utility model discloses a solenoid valve 100 can be used for the air conditioning unit that needs bidirectional operation, for example, can install in the air conditioning unit that needs possess two kinds of functions of refrigeration mode and heating mode simultaneously.
Referring to fig. 1 and 3, the solenoid valve 100 includes a valve body 10 and a valve core assembly 20, the valve body 10 has a valve cavity 11, the valve body 10 is opened with a first communicating opening 101 and a second communicating opening 102, and the valve core assembly 20 is disposed in the valve cavity 11 and can slide in the valve cavity 11 to connect or disconnect the first communicating opening 101 and the second communicating opening 102.
Specifically, a valve seat 12 is provided in the valve body 10, the valve seat 12 is fixed in the valve body 10, a part of the valve core assembly 20 is movable in the valve seat 12, and the first communication port 101 and the second communication port 102 penetrate the valve seat 12, respectively.
A first connecting pipe 103 is arranged in the first communicating port 101, a second connecting pipe 104 is arranged in the second communicating port 102, and the first connecting pipe 103 and the second connecting pipe 104 are respectively connected with a pipeline of the air conditioning unit.
The valve body 10 is opened with a third communication port 13 and a fourth communication port 14, the third communication port 13 communicates with the first chamber 1121, and the fourth communication port 14 communicates with the second chamber 1122. A first capillary tube 131 is provided in the third communication port 13, a second capillary tube 141 is provided in the fourth communication port 14, and the first capillary tube 131 and the second capillary tube 141 are connected to a pilot valve 30 described below, so that a pressure difference is formed between both sides of the valve core assembly 20 to push the valve core assembly 20 to move.
The valve cavity 11 is internally provided with a middle end cover 15, two ends of the valve body 10 are respectively provided with a first end cover 16 and a second end cover 17, the first end cover 16 and the middle end cover 15 form a circulation cavity 111, and the middle end cover 15 and the second end cover 17 form a pressure cavity 112. The intermediate end cap 15 cooperates with the valve core assembly 20 to divide the pressure chamber 112 into a first chamber 1121 and a second chamber 1122. When the solenoid valve 100 is in the open state, the communication chamber 111 communicates with the first communication port 101 and the second communication port 102. The medium in the first cavity 1121 and the second cavity 1122 can form a pressure difference to push the valve element assembly 20 to move, so that the communication or the separation of the first communication port 101 and the second communication port 102 is controlled, and a bidirectional function is realized.
The middle end cover 15 is provided with a mounting hole 151, a part of the valve core assembly 20 is arranged in the mounting hole 151 in a penetrating way, a part of the valve core assembly is positioned on one side of the middle end cover 15 close to the first end cover 16, and the other part of the valve core assembly is positioned on one side of the middle end cover 15 close to the second end cover 17.
A sealing groove 152 is formed in the inner wall of the mounting hole 151, a sealing element 153 is arranged in the sealing groove 152, and the sealing element 153 abuts against the valve core assembly 20 extending into the mounting hole 151, so that the valve core assembly 20 slides in the mounting hole 151 in a sealing manner.
The outer side wall of the middle end cover 15 is provided with a solder groove 154, when the middle end cover 15 is welded in the valve cavity 11, solder or a welding ring is arranged in the solder groove 154, and then welding is carried out to enhance the mounting firmness of the middle end cover 15.
The valve core assembly 20 includes a link member 22 and a slider member 23, the slider member 23 is connected to the link member 22, and one end of the link member 22 is inserted into the mounting hole 151.
Referring to fig. 4 and 5, the link member 22 includes a link 221 and a guide frame 222 connected to each other, the guide frame 222 is sleeved outside the slider member 23 and can guide the slider member 23, so as to prevent the slider member 23 from tilting during movement to affect the sealing performance of the slider member to block the first communication port 101 and the second communication port 102, and prevent the slider member 23 from tilting to interfere with the inner wall of the valve chamber 11.
The slider member 23 includes a first portion 231 and a second portion 232, the first portion 231 abuts against the second portion 232, the first portion 231 is provided near the first communication port 101, and the second portion 232 is provided near the second communication port 102. The first portion 231 can close the first communication port 101, and the second portion 232 can close the second communication port 102.
An accommodating cavity 245 is formed between the first portion 231 and the second portion 232, an elastic member 233 is arranged in the accommodating cavity 245, one end of the elastic member 233 abuts against the first portion 231, the other end of the elastic member 233 abuts against the second portion 232, and the elastic member 233 enables the first portion 231 and the second portion 232 to respectively abut against the end face of the first communication port 101 and the end face of the second communication port 102, so that sealing performance of plugging is enhanced.
The first portion 231 and/or the second portion 232 are provided with a balance hole 234, and the balance hole 234 is respectively communicated with the circulation cavity 111 and the accommodating cavity 245, so that the pressure between the circulation cavity 111 and the accommodating cavity 245 is balanced.
The valve core assembly 20 further includes a piston member 21, the piston member 21 is disposed in the pressure chamber 112 and connected to an end of the connecting rod 221 away from the slider member 23, and the piston member 21 abuts against an inner wall of the valve chamber 11 to isolate the first chamber 1121 from the second chamber 1122.
Further, the piston member 21 is opened with a connection hole 201, and the connecting rod 221 penetrates the connection hole 201 and is connected to the piston member 21. The connecting rod 221 includes a tapered section 2211, along the axial direction of the connecting rod 221, the outer diameter of the tapered section 2211 gradually changes, the tapered section 2211 is arranged in the connecting hole 201 in a penetrating manner, and the tapered section 2211 can abut against the inner wall of the connecting hole 201 to form a tapered surface seal, so that the connecting rod 221 is connected with the piston part 21 in a sealing manner.
The piston member 21 includes a bowl-shaped piston bowl 211, and an outer side wall of the piston bowl 211 can abut against an inner wall of the valve chamber 11 so that the piston member 21 can slide in the valve chamber 11 in a sealing manner. The piston bowl 211 is made of teflon.
Referring to fig. 2 and 4, the connecting hole 201 includes a first hole 2113, the first hole 2113 is opened on the piston bowl 211, and the tapered section 2211 is in a shape of a circular truncated cone and has a shape of a circular truncated coneHas a first end 2011 and a second end 2012 arranged oppositely, the first end 2011 is arranged close to the first communication port 101 relative to the second end 2012, and the outer diameter D of the first end 2011 1 Greater than outer diameter D of second end 2012 2 The first bore 2113 has an inner diameter D 3 ，D 1 ＞D 3 ＞D 2 . The inner wall of the first aperture 2113 interferes with the tapered section 2211, thereby enhancing the seal.
The piston bowl 211 comprises a first bowl 2111 and a second bowl 2112, the first bowl 2111 and the second bowl 2112 are both bowl-shaped, the piston component 21 further comprises a middle baffle plate 212, and the first bowl 2111 and the second bowl 2112 are respectively arranged on two sides of the middle baffle plate 212 and are arranged in a back-to-back manner. The intermediate baffle 212 connects and supports the first bowl 2111 and the second bowl 2112.
The first bowl 2111 is disposed adjacent the slider part 23, and the first hole 2113 is opened to the first bowl 2111, i.e., the first bowl 2111 interferes with the tapered section 2211. The inner hole of the second bowl 2112 is equal to the inner hole of the first bowl 2111, that is, the second bowl 2112 and the first bowl 2111 have the same structure and size respectively, and the processing is convenient.
The connecting hole 201 further includes a second hole 2121 communicating with the first hole 2113, the second hole 2121 is opened to the intermediate blocking plate 212, and an inner diameter D of the second hole 2121 4 Greater than the outer diameter D of the first end 2011 1 . Because the intermediate baffle 212 is made of stainless steel, the intermediate baffle 212 and the connecting rod 221 are arranged at intervals to prevent the intermediate baffle 212 from interfering with the conical section 2211, so that the sealing performance of the piston bowl 211 and the conical section 2211 is affected.
The piston assembly 21 further includes a first baffle 213 and a second baffle 214, the first baffle 213 is disposed in the first bowl 2111 and disposed in the first chamber 1121, the second baffle 214 is disposed in the second bowl 2112 and disposed in the second chamber 1122, and the connecting rod 221 penetrates through the first baffle 213 and the second baffle 214, respectively. The first baffle plate 213, the first bowl 2111, the intermediate baffle plate 212, the second bowl 2112 and the second baffle plate 214 are connected by screws or rivets.
A first protrusion 2131 is provided on a side surface of the piston member 21 facing the intermediate cap 15, and when the piston member 21 moves in a direction to approach the first communication port 101 and the second communication port 102, the first protrusion 2131 can abut against the intermediate cap 15 and can function as a stopper when the valve is closed; and/or, a second protrusion 2141 is provided on a side surface of the piston member 21 facing the second end cap 17, and when the piston member 21 moves in a direction approaching the second end cap 17, the second protrusion 2141 can abut against the second end cap 17, and functions as a stopper when the valve is opened.
In the present embodiment, since the first baffle 213 and the second baffle 214 are disposed on both sides of the piston bowl 211, the first protrusion 2131 and the second protrusion 2141 are disposed on the first baffle 213 and the second baffle 214, respectively.
With continued reference to fig. 1 and fig. 3, the first protrusion 2131 is annular, a first orifice 2132 is formed in a side surface of the first protrusion 2131, and a medium can enter between the middle cap 15 and the piston member 21 through the first orifice 2132; alternatively, the end surface of the first protrusion 2131 facing the middle end cover 15 is provided with a first throttling groove (not shown), and the medium can enter between the middle end cover 15 and the piston member 21 through the first throttling groove. When the solenoid valve 100 is in a closed state and needs to be opened, the medium entering the first cavity 1121 from the first capillary tube 131 can enter between the middle cap 15 and the piston member 21 from the first orifice 2132 or the first throttling groove to push the piston member 21 to move more smoothly.
The second protrusion 2141 is annular, a second throttle hole 2142 is formed in a side surface of the second protrusion 2141, and a medium can enter between the piston member 21 and the second end cap 17 through the second throttle hole 2142; alternatively, a throttling groove (not shown) is formed in an end surface of the second protrusion 2141 facing the second end cap 17, and the medium can enter between the piston member 21 and the second end cap 17 through the second throttling groove. When the solenoid valve 100 is in the open state and needs to be opened, the medium entering the second chamber 1122 from the second capillary 141 can enter between the piston member 21 and the second end cap 17 from the second throttle hole 2142 or the second throttle groove, so as to push the piston member 21 to move more smoothly.
The valve core assembly 20 further includes a nut 24, one end of the connecting rod 221 is inserted into the connecting hole 201, and extends out of the connecting hole 201 and is screwed into the nut 24, when one end of the connecting rod 221 is screwed into the nut 24, the first end 2011 of the tapered section 2211 can squeeze and deform the inner wall of the first hole 2113, that is, the piston bowl 211, and fill a gap between the intermediate baffle 212 and the connecting rod 221, so that the connecting rod 221 and the piston member 21 are connected in a sealing manner.
Preferably, the nut 24 is screwed to the connecting rod 221 and then fixed together by welding to enhance the firmness of the connection.
The nut 24 and the connecting rod 221 are welded together by laser welding, and the laser welding has deep melting depth and high speed.
The solenoid valve 100 further includes a pilot valve 30, and the pilot valve 30 is disposed outside the valve body 10 and connected to the first capillary tube 131 and the second capillary tube 141. By reversing the pilot valve 30, the pressure difference across the piston member 21 is controlled, thereby pushing the piston member 21.
The utility model also provides an air conditioning unit, including foretell reversible solenoid valve 100.
During operation, when the solenoid valve 100 needs to be closed, the pilot valve 30 is switched to introduce a high-pressure medium into the second chamber 1122 from the second capillary tube 141, the medium in the first chamber 1121 flows out from the first capillary tube 131, the piston member 21 is pushed to move in a direction approaching the valve seat 12, and the slider member 23 blocks the first communication port 101 and the second communication port 102; when the solenoid valve 100 needs to be opened, the pilot valve 30 is switched to introduce the high-pressure medium into the first chamber 1121 from the first capillary tube 131, and the medium in the second chamber 1122 flows out from the second capillary tube 141, so that the piston member 21 is pushed to move in a direction away from the valve seat 12, and the slider member 23 releases the sealing of the first communication port 101 and the second communication port 102. When the air conditioning unit is switched from the cooling mode to the heating mode or from the heating mode to the cooling mode, the flow direction of the medium is reversed, and the solenoid valve 100 can still work normally.
The utility model discloses it is fixed to carry out threaded connection back rethread welding between nut 24 and connecting rod 221 to strengthen the fastness that connecting rod 221 and piston part 21 are connected, prevent that nut 24 is not hard up.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A reversible electromagnetic valve comprises a valve body (10) and a valve core assembly (20), wherein a first communication port (101) and a second communication port (102) are respectively formed in two sides of the valve body (10), the valve body (10) is provided with a valve cavity (11), the valve core assembly (20) is arranged in the valve cavity (11), and the valve core assembly (20) can slide in the valve cavity (11) to enable the first communication port (101) and the second communication port (102) to be communicated or separated;
the valve core assembly (20) is characterized by comprising a piston part (21), a connecting rod part (22) and a nut (24), wherein the nut (24) abuts against the side face, far away from the first communication port (101), of the piston part (21), one end, far away from the first communication port (101), of the connecting rod part (22) penetrates through the piston part (21) and is in threaded connection with the nut (24), and the piston part (21) and the nut (24) are welded and fixed.
2. The reversible solenoid valve according to claim 1, characterized in that the piston member (21) and the nut (24) are fixed by laser welding.
3. The reversible solenoid valve according to claim 1, wherein the connecting rod member (22) comprises a tapered section (2211), an outer diameter of the tapered section (2211) is gradually reduced along a direction away from the first communication hole (101), the piston member (21) is provided with a connection hole (201), and the tapered section (2211) extends into the connection hole (201) and can abut against an inner wall of the connection hole (201) to enable the connecting rod member (22) to be connected with the piston member (21) in a sealing manner.
4. The reversible solenoid valve according to claim 3, characterized in that said conical section (2211) has a first end (2011) and a second end (2012) opposite each other, said first end (2011) being arranged close to said first communication port (101) with respect to said second end (2012), said first end (2011) having an outer diameter D 1 Is larger than the outer diameter D of the second end (2012) 2 The piston component (21) comprises a piston bowl (211), the outer side wall of the piston bowl (211) is abutted to the inner wall of the valve body (10), the connecting hole (201) comprises a first hole (2113), the first hole (2113) is arranged on the piston bowl (211), and the inner diameter of the first hole (2113) is D 3 ，D 1 ＞D 3 ＞D 2 。
5. The reversible electromagnetic valve according to claim 1, characterized in that an intermediate end cover (15) is disposed in the valve chamber (11), the intermediate end cover (15) divides the valve chamber (11) into a circulation chamber (111) and a pressure chamber (112), the circulation chamber (111) can communicate with the first communication port (101) and the second communication port (102), the piston member (21) divides the pressure chamber (112) into a first chamber (1121) and a second chamber (1122), and the first chamber (1121) and the second chamber (1122) can form a pressure difference to push the piston member (21) to move.
6. The reversible solenoid valve according to claim 5, characterized in that the side of the piston member (21) facing the intermediate cap (15) is provided with a first protrusion (2131), and the first protrusion (2131) is capable of abutting against the intermediate cap (15) when the piston member (21) moves in a direction approaching the first communication port (101) and the second communication port (102); and/or, one end of the valve body (10) far away from the first communication port (101) is provided with a second end cover (17), the side face of the piston part (21) facing the second end cover (17) is provided with a second protrusion (2141), and when the piston part (21) moves towards the direction close to the second end cover (17), the second protrusion (2141) can be abutted to the second end cover (17).
7. The reversible solenoid valve according to claim 6, wherein the first protrusion (2131) is ring-shaped, a first orifice (2132) is opened on a side surface of the first protrusion (2131), and a medium can enter between the middle cover (15) and the piston member (21) through the first orifice (2132); and/or the second bulge (2141) is annular, a second throttle hole (2142) is formed in the side surface of the second bulge (2141), and a medium can enter between the piston part (21) and the second end cover (17) through the second throttle hole (2142).
8. The reversible solenoid valve according to claim 5, characterized in that the outer side wall of the intermediate cover (15) is provided with solder grooves (154).
9. The reversible electromagnetic valve according to claim 5, wherein the intermediate end cover (15) is provided with a mounting hole (151), the connecting rod member (22) is inserted into the mounting hole (151), a sealing groove (152) is provided on an inner wall of the mounting hole (151), a sealing member (153) is provided in the sealing groove (152), and the sealing member (153) abuts against the connecting rod member (22).
10. Air conditioning assembly, characterized in that it comprises a reversible solenoid valve according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121093489.3U CN218582299U (en) | 2021-05-20 | 2021-05-20 | Reversible electromagnetic valve and air conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121093489.3U CN218582299U (en) | 2021-05-20 | 2021-05-20 | Reversible electromagnetic valve and air conditioning unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218582299U true CN218582299U (en) | 2023-03-07 |
Family
ID=85359077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121093489.3U Active CN218582299U (en) | 2021-05-20 | 2021-05-20 | Reversible electromagnetic valve and air conditioning unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218582299U (en) |
-
2021
- 2021-05-20 CN CN202121093489.3U patent/CN218582299U/en active Active
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