Valve element assembly, one-way valve and air conditioner
By designing a combination structure of the connecting sleeve and the limit sleeve in the air conditioner's check valve, the problem of heat melting and insufficient refrigerant overflow space during welding is solved, and a larger refrigerant flow rate and higher air conditioner performance.
Patent Information
- Application Number
- CN202420831885.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-19
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-19
AI Technical Summary
In existing air conditioners, the valve core of the check valve is made of plastic and is easily melted by heat during welding. The refrigerant overflow space is limited when the valve core assembly is opened, resulting in a small refrigerant flow rate and affecting the performance of the air conditioner.
A valve core assembly is designed. By setting a connecting sleeve and a limit sleeve, the overflow hole is placed on the connecting sleeve, avoiding the limit sleeve, increasing the overflow space of the valve core when the valve core is in the open valve position, and through the connecting sleeve The larger outer diameter and multiple long holes through holes increase the refrigerant flow rate.
It effectively prevents the limit sleeve from deformation, expands the refrigerant overcurrent space and flow, and improves the overall performance of the air conditioner.
Smart Images
Figure CN222185822U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air conditioners, and in particular to a valve core component, a one-way valve and an air conditioner. Background Art
[0002] In recent years, as people's living standards have gradually improved, air conditioners have become a daily consumer product that has entered thousands of households. In air conditioners, one-way valves are important components. The one-way valve realizes the functions of forward conduction and reverse cutoff of the internal fluid through the movement of its internal valve core.
[0003] In the prior art air conditioner, the valve core of the one-way valve is generally made of non-metallic materials (such as plastic), while the valve seat of the one-way valve and the external pipe are generally made of metal. When the valve seat of the one-way valve is welded to the external pipe, the heat generated by the welding will be transferred to the valve core due to the good thermal conductivity of metal, so that the temperature of the valve core increases, while the valve core made of plastic material often cannot withstand the welding temperature, causing the valve core to melt due to the heat, and the one-way valve fails.
[0004] In order to prevent the valve core from melting due to heat, a wet towel is usually used to wrap the external pipe during welding to remove some of the heat through evaporation of water, thereby reducing the heat transferred to the valve core. However, despite this, there is still a risk that the valve core will be affected by high temperature.
[0005] In some related technologies, a metal valve core is used to replace a plastic valve core to avoid high temperature melting. However, the valve core assembly in the prior art has limited refrigerant flow space when opened, resulting in a small refrigerant flow rate, which easily affects the air conditioning performance. Utility Model Content
[0006] The utility model aims to at least solve the problem in the prior art that the refrigerant flow space of the valve core assembly is limited when it is opened, resulting in a small refrigerant flow rate and easily affecting the air conditioning performance, and proposes a valve core assembly, a one-way valve and an air conditioner.
[0007] In order to achieve the purpose of the utility model, a valve core assembly is provided, comprising: a valve port member, having a valve port, the valve port having a central axis; a connecting sleeve, having a first end and a second end along the central axis of the valve port, the first end of the connecting sleeve being connected to the valve port member, the valve port being located in the connecting sleeve, the connecting sleeve being provided with a flow hole communicating with the interior thereof; a limiting sleeve, connected to the second end of the connecting sleeve, the interior of the limiting sleeve being communicated with the interior of the connecting sleeve, the minimum outer diameter of the connecting sleeve being larger than the outer diameter of the limiting sleeve; ... The valve core is movably arranged in the limit sleeve along the direction of the central axis of the valve port, and the valve core has a first end facing the valve port and a second end away from the valve port; the valve core is configured to be able to move between a valve opening position and a valve closing position relative to the limit sleeve; in the valve closing position, the first end of the valve core abuts against the side wall of the valve port to block the valve port, and the second end of the valve core is located in the limit sleeve; in the valve opening position, the first end of the valve core is separated from the side wall of the valve port, and the valve port is connected to the flow hole.
[0008] Optionally, the connecting sleeve and the limiting sleeve are an integrally formed structure.
[0009] Optionally, the connecting sleeve includes: a connecting tube, whose axis is parallel to the central axis of the valve port, the first end of the connecting tube is connected to the valve port member, and a connecting channel is formed inside the connecting tube; an annular end plate, which is perpendicular to the axis of the connecting tube, the outer peripheral wall of the annular end plate is connected to the second end of the connecting tube, the inner peripheral wall of the annular end plate is connected to the limit sleeve, and the connecting tube, the annular end plate and the limit sleeve form a step structure.
[0010] Optionally, the flow hole is arranged on the outer peripheral wall of the connecting tube or on the annular end plate, and the flow hole is communicated with the connecting channel.
[0011] Optionally, there are multiple flow holes, and the multiple flow holes are spaced apart and distributed around the axis of the connecting tube.
[0012] Optionally, the flow hole is a long hole, and the length of the flow hole in the direction surrounding the axis of the connecting tube is greater than the distance between two adjacent flow holes.
[0013] Optionally, the connecting sleeve includes: a connecting tube, whose axis is parallel to the central axis of the valve port, the connecting tube is connected to the valve port member; an annular end plate, which is perpendicular to the axis of the connecting tube, the annular end plate and the connecting tube are axially spaced apart, and the inner circumferential wall of the annular end plate is connected to the limiting sleeve; a plurality of connecting arms, each of the connecting arms is connected between the connecting tube and the outer circumferential wall of the annular end plate, all of the connecting arms are circumferentially spaced around the axis of the connecting tube, and the flow hole is formed between two adjacent connecting arms.
[0014] Optionally, the connecting arm is an arc-shaped structure.
[0015] Optionally, the valve mouth member includes: an annular body for connecting to a fixed object, the annular body axially having a first end, a second end and a first channel extending from the first end to the second end of the annular body, the connecting sleeve being sleeved on the outer peripheral wall of the annular body; an annular protrusion connected to the first end of the annular body, the annular protrusion having a second channel extending axially therethrough, the first end of the second channel being connected to the first channel, and the second end of the second channel forming the valve mouth.
[0016] Optionally, an annular groove is provided on the outer peripheral wall of the annular body, and the connecting sleeve is located in the annular groove.
[0017] Optionally, the valve core is a cup-shaped hollow structure.
[0018] According to a second aspect of the utility model, a one-way valve is also disclosed, comprising the above-mentioned valve core assembly.
[0019] According to a third aspect of the utility model, an air conditioner is also disclosed, comprising the one-way valve mentioned above.
[0020] The valve core assembly of the utility model is provided with a connecting sleeve, so that the limit sleeve is connected to the valve mouth member through the connecting sleeve, and the flow hole is provided on the connecting sleeve, that is, the opening position of the flow hole avoids the limit sleeve. Therefore, the limit sleeve will not be affected in the process of opening the flow hole, and deformation of the limit sleeve is effectively prevented. Since the minimum outer diameter of the connecting sleeve is larger than the outer diameter of the limit sleeve, even if slight deformation occurs, it will not interfere with the movement of the valve core.
[0021] In addition, since the valve port is located in the connecting sleeve, compared with the related art, the limit sleeve is connected to the valve port member through the connecting sleeve, which increases the distance between the limit sleeve and the valve port in the direction of the central axis, and the valve core is always located in the limit sleeve. Therefore, when the valve core is in the valve opening position, the distance between the first end of the valve core and the side wall of the valve port is increased, and the flow space is expanded, so that more fluid can pass through, which is more conducive to the passage of fluid. Moreover, since the outer diameter of the connecting sleeve is larger, it also means that the size of the flow hole can be set larger, so the overall flow of the refrigerant can be increased, thereby ensuring the performance of the air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a structural schematic diagram of a one-way valve in the related art;
[0023] Figure 2 This is a structural schematic diagram of the valve core assembly of the first embodiment of the utility model;
[0024] Figure 3 This is a structural schematic diagram of a connecting sleeve and a limiting sleeve of a valve core assembly in Embodiment 1 of the utility model;
[0025] Figure 4 This is a structural schematic diagram of a valve core assembly according to Embodiment 2 of the present utility model;
[0026] Figure 5 This is a structural schematic diagram of a connecting sleeve and a limiting sleeve of a valve core assembly in Embodiment 2 of the present utility model;
[0027] Figure 6 This is a schematic diagram of the structure of the valve core assembly of the third embodiment of the present utility model;
[0028] Figure 7 This is a structural schematic diagram of the valve core assembly of the first embodiment of the utility model applied to a one-way valve;
[0029] Figure 8 This is a schematic diagram of the structure of the valve core assembly of the second embodiment of the utility model applied to a one-way valve;
[0030] List of reference numerals:
[0031] 10. Valve mouth member; 11. Valve mouth; 12. Annular body; 121. First channel; 122. Annular groove; 13. Annular protrusion; 131. Second channel; 20. Connecting sleeve; 21. Connecting tube; 211. Connecting channel; 22. Annular end plate; 23. Connecting arm; 24. Flow hole; 30. Limiting sleeve; 31. Limiting channel; 32. Limiting protrusion; 40. Valve core; 50. Valve seat; 51. Cylindrical body; 52. Connecting pipe; 521. Limiting structure; 522. Outer flange; 53. Flow channel. DETAILED DESCRIPTION
[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the valve core assembly, the one-way valve and the air conditioner provided by the present invention are described in detail below in conjunction with the accompanying drawings.
[0033] In order to make the purpose, technical solution and advantages of the technical solution of the present disclosure clearer, the technical solution of the embodiment of the present disclosure will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present disclosure. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.
[0034] Compared to the embodiments shown in the drawings, feasible implementations within the scope of the present disclosure may have fewer components, other components not shown in the drawings, different components, differently arranged components, or differently connected components, etc. In addition, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.
[0035] Unless otherwise defined, the technical or scientific terms used herein shall have the usual meanings understood by persons of ordinary skill in the field to which the present disclosure belongs. The words "first", "second" and similar words used in the patent application specification and claims of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. When the number of components is not specified, the number of components may be one or more; similarly, words such as "one", "the" and the like do not necessarily indicate a quantity limitation. Words such as "include" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate the relative orientation relationship when the device is in use or the orientation relationship shown in the drawings. When the absolute position of the described object changes, the relative position relationship may also change accordingly.
[0036] In recent years, as people's living standards have gradually improved, air conditioners have become a daily consumer product that has entered thousands of households. In air conditioners, one-way valves are important components. The one-way valve realizes the functions of forward conduction and reverse cutoff of the internal fluid through the movement of its internal valve core.
[0037] In the prior art air conditioner, the valve core of the one-way valve is generally made of non-metallic materials (such as plastic), while the valve seat of the one-way valve and the external pipe are generally made of metal. When the valve seat of the one-way valve is welded to the external pipe, the heat generated by the welding will be transferred to the valve core due to the good thermal conductivity of metal, so that the temperature of the valve core increases, while the valve core made of plastic material often cannot withstand the welding temperature, causing the valve core to melt due to the heat, and the one-way valve fails.
[0038] In order to prevent the valve core from melting due to heat, a wet towel is usually used to wrap the external pipe during welding to remove some of the heat through evaporation of water, thereby reducing the heat transferred to the valve core. However, despite this, there is still a risk that the valve core will be affected by high temperature.
[0039] In some related technologies, a valve core made of metal is used to replace a valve core made of plastic to avoid high temperature melting. Figure 1As shown, in the valve core assembly in the related art, the valve port 10' is provided with a valve port 11' and a protruding structure 12' surrounding the valve port 11'. The limiting sleeve 30' is cylindrical, and its first end is sleeved on the protruding structure 12' of the valve port 10', and a limiting protrusion 32' is provided on the second end. The limiting sleeve 30' is provided with a flow hole 31' near the first end. The valve core 40' is arranged in the limiting sleeve 30' and is matched with the radial upper limit, and the valve core 40' is movable relative to the limiting sleeve 30' in the axial direction.
[0040] When the fluid Figure 1 When the fluid flows from the right side to the left side, the fluid pushes the valve core 40' to move toward the valve port 11', and the valve port 11' is blocked by the blocking end 41' of the valve core 40'; Figure 1 When the water flows from the left side to the right side, the valve core 40' is pushed away from the valve port 11', so that the valve port 11' is opened. After the valve port 11' is opened, the valve core 40' cooperates with the axial upper limit of the limiting protrusion 32'.
[0041] It can be seen that the limiting sleeve 30' has the following functions. The first function is to limit the radial position of the valve core 40' and guide the valve core 40' to move axially. In order to achieve this function, the inner diameter of the limiting sleeve 30' matches the maximum outer diameter of the valve core 40' to avoid the valve core 40' from shaking greatly in the radial direction. The second function is the flow diversion function, and the valve port 11' can flow out through the flow hole 31' on the limiting sleeve 30'.
[0042] However, there are some problems with the use of a cylindrical limiting sleeve 30': first, in the above scheme, when processing the flow hole 31', the limiting sleeve 30' is easily deformed in the radial direction, thereby affecting the radial cooperation with the valve core 40', causing the valve core 40' to wobble more or get stuck with the limiting sleeve 30'; second, because the limiting sleeve 30' is connected to the protruding structure 12', a part of the protruding structure 12' will enter the limiting sleeve 30', resulting in a smaller radial movable space for the valve core 40'. When the valve is in the open position, the blocking end 41 of the valve core 40' ' is closer to the valve port 11', therefore, the distance between the blocking end 41' of the valve core 40' and the side wall of the valve port 11' is smaller, resulting in a smaller flow space, affecting the fluid flow rate; thirdly, in order to prevent the valve core 40' from shaking, the inner diameter of the limit sleeve 30' needs to match the valve core 40', and a large inner diameter cannot be achieved. Therefore, the outer wall area of the limit sleeve 30' is also smaller, resulting in a limited area of the flow hole 31' that can be opened on its outer wall, that is, the flow area of the flow hole 31' is smaller, resulting in a smaller fluid flow rate, which is easy to affect the air-conditioning performance.
[0043] In order to solve the above problems, Figure 1As shown, in order to achieve the purpose of the utility model, a valve core assembly is disclosed, which is installed in a one-way valve to control the flow direction of a fluid, wherein the fluid can be liquid refrigerant, gaseous refrigerant, lubricating oil or other substances. In this embodiment, the fluid is liquid refrigerant.
[0044] like Figure 1 and Figure 2 As shown, the valve core assembly includes: a valve port member 10, a connecting sleeve 20, a limiting sleeve 30 and a valve core 40. The valve port member 10 has a valve port 11, and the valve port 11 has a central axis; the connecting sleeve 20 has a first end and a second end along the central axis (x axis) of the valve port 11, the first end of the connecting sleeve 20 is connected to the valve port member 10, the valve port 11 is located in the connecting sleeve 20, and the connecting sleeve 20 is provided with a flow hole 24 connected to the interior thereof; the limiting sleeve 30 is connected to the second end of the connecting sleeve 20, the interior of the limiting sleeve 30 is connected to the interior of the connecting sleeve 20, and the minimum outer diameter of the connecting sleeve 20 is greater than the outer diameter of the limiting sleeve 30; the valve core 40 is movably arranged in the limiting sleeve 30 along the direction of the central axis of the valve port 11 and is radially limited in the limiting sleeve 30, and the valve core 40 has a first end facing the valve port 11 and a second end away from the valve port 11.
[0045] The valve core 40 is configured to be able to move between an open valve position and a closed valve position relative to the limit sleeve 30; in the closed valve position, the first end of the valve core 40 abuts against the side wall of the valve port 11 to block the valve port 11, and the second end of the valve core 40 is located in the limit sleeve 30; in the open valve position, the first end of the valve core 40 is separated from the side wall of the valve port 11, and the second end of the valve core 40 cooperates with the limit sleeve 30 for upper limit in the x-axis direction, and the valve port 11 is connected to the flow hole 24.
[0046] The valve core 40 component of the utility model is connected to the valve mouth member 10 through the connecting sleeve 20, and the flow hole 24 is arranged on the connecting sleeve 20, that is, the opening position of the flow hole 24 avoids the limit sleeve 30. Therefore, the limit sleeve 30 will not be affected in the process of opening the flow hole 24, and the deformation of the limit sleeve 30 is effectively prevented. Since the minimum outer diameter of the connecting sleeve 20 is larger than the outer diameter of the limit sleeve 30, even if a slight deformation occurs, it will not interfere with the movement of the valve core 40.
[0047] In addition, since the valve port 11 is located in the connecting sleeve 20, Figure 1Compared with the related art in the invention, the limit sleeve 30 is connected to the valve port member 10 through the connecting sleeve 20, which increases the distance between the limit sleeve 30 and the valve port 11 in the direction of the central axis (x axis), and the valve core 40 is always located in the limit sleeve 30. Therefore, when the valve core 40 is in the valve opening position, the distance between the first end of the valve core 40 and the side wall of the valve port 11 is increased, thereby expanding the flow space, so that more fluid can pass through, which is more conducive to the passage of fluid. Moreover, since the outer diameter of the connecting sleeve 20 is larger, it also means that the size of the flow hole 24 can be set larger, so the overall flow of the refrigerant can be increased, thereby ensuring the performance of the air conditioner.
[0048] Combine the following Figure 3 The illustrated embodiment 1 specifically describes the specific structure of the valve core assembly.
[0049] In this embodiment, the connection sleeve 20 and the limiting sleeve 30 are an integrally formed structure, so the connection strength is stronger. Specifically, it can be formed by stretching a pipe or by stamping a plate, while the limiting sleeve 30 in the related art usually adopts a turning process, which takes a long time, and by adopting stamping or stretching, the process steps can be simplified, the process time is shorter, the time cost is reduced, and the production efficiency is improved.
[0050] like Figure 3 As shown, the connecting sleeve 20 includes: a connecting cylinder 21 and an annular end plate 22. The axis of the connecting cylinder 21 is parallel to the central axis (x axis) of the valve port 11, the first end of the connecting cylinder 21 is connected to the valve port member 10, and a connecting channel 211 is formed inside the connecting cylinder 21; the annular end plate 22 is perpendicular to the axis of the connecting cylinder 21, the outer peripheral wall of the annular end plate 22 is connected to the second end of the connecting cylinder 21, the inner peripheral wall of the annular end plate 22 is connected to the limiting sleeve 30, and the connecting cylinder 21, the annular end plate 22 and the limiting sleeve 30 form a step structure. In this embodiment, the flow hole 24 is arranged on the outer peripheral wall of the connecting cylinder 21, and the flow hole 24 is connected to the connecting channel 211. A step structure is formed by the connecting tube 21, the annular end plate 22 and the limit sleeve 30, and the flow hole 24 is arranged on the outer peripheral wall of the connecting tube 21. When the flow hole 24 is opened, the annular end plate 22 forms a support in the direction perpendicular to the central axis (x-axis) of the valve port 11. Even if the connecting tube 21 is deformed, it will not affect the limit sleeve 30, thereby effectively preventing the limit sleeve 30 from being deformed.
[0051] like Figure 3 As shown, in this embodiment, there are multiple flow holes 24, and the multiple flow holes 24 are spaced around the axis of the connecting tube 21 to make it easier for the fluid to pass through, reduce the resistance of the fluid passing through, and increase the flow rate of the fluid passing through.
[0052] Furthermore, the flow hole 24 is a long hole, and the length of the flow hole 24 in the direction surrounding the axis of the connecting tube 21 is greater than the distance between two adjacent flow holes 24. By setting the flow hole 24 as a long hole, the flow hole 24 occupies a larger proportion in the circumferential direction of the connecting tube 21, thereby increasing the flow area of the flow hole 24. Furthermore, the width of the flow hole 24 in the axial direction (x-axis direction) of the connecting tube 21 is greater than the distance between two adjacent flow holes 24 in the circumferential direction of the connecting tube 21. In other words, the width of the flow hole 24 in the axial direction is also larger, so that the flow area of the flow hole 24 is further increased.
[0053] In the above embodiment, the limiting sleeve 30 is cylindrical, and the limiting passage 31 is inside the limiting sleeve 30. The outer diameter of the limiting sleeve 30 is smaller than the outer diameter of the connecting sleeve 21. Since the outer diameter of the limiting sleeve 30 is smaller than the outer diameter of the connecting sleeve 21, it can match the size of the valve core 40, and can better limit and guide the valve core 40, avoid the shaking of the valve core 40, and reduce noise. It can be understood that the first end of the limiting sleeve 30 is connected to the connecting sleeve 20, and the second end is provided with a limiting protrusion 32 to cooperate with the valve core 40 in the valve opening position.
[0054] like Figure 2 In the first embodiment shown, the valve port member 10 includes: an annular body 12 and an annular protrusion 13. The annular body 12 is used to connect with a fixed object (for example: a valve seat 50 or a pipeline). The annular body 12 has a first end, a second end and a first channel 121 extending from the first end to the second end of the annular body 12 in the axial direction (x-axis direction). The first channel 121 is used to connect with the pipeline. The connecting cylinder 21 of the connecting sleeve 20 is sleeved on the outer peripheral wall of the annular body 12; the annular protrusion 13 is connected to the first end of the annular body 12, and the annular protrusion 13 has a second channel 131 extending axially (in the x-axis direction) inside. The first end of the second channel 131 is connected to the first channel 121, and the second end of the second channel 131 extends axially to the valve port 11 formed on the surface of the annular protrusion 13. Among them, an annular groove 122 is provided on the outer peripheral wall of the annular body 12, and the connecting cylinder 21 of the connecting sleeve 20 is connected in the annular groove 122. The annular groove 122 is provided to facilitate installation of the connecting sleeve 20 . Compared with the method of connecting to the annular protrusion 13 , the contact surface between the connecting sleeve 20 and the annular body 12 is larger, which can improve the reliability of the connection.
[0055] In this embodiment, the valve core 40 is made of metal and is formed by stretching or cutting process, so that the wall thickness of the valve core 40 can reach 0.1-1 mm, forming a cup-like hollow structure, the first end of which is a closed end, and the second end is an open end. The valve core 40 with such a structure can not only move better under the action of the fluid to achieve the function of one-way flow restriction, but also the open end of the valve core 40 is more conducive to interacting with the fluid, so that the fluid can more easily push the valve core 40 away from the closed valve position, thereby improving the low-pressure opening capability of the one-way valve.
[0056] It should be noted that in this embodiment, the first end of the valve core 40 is a closed end and the second end is an open end, but this is not restrictive. In some other embodiments not shown in the figure, the first end of the valve core 40 can be an open end and the second end can be a closed end.
[0057] It can be understood that, in this embodiment, the limiting sleeve 30 is cylindrical, the first end of which is connected to the annular end plate 22, and the second end is provided with a limiting protrusion, the valve core 40 is arranged in the limiting sleeve 30 and cooperates with the radial upper limit, and the valve core 40 is movable relative to the limiting sleeve 30 in the axial direction. When the valve core 40 moves to the valve opening position, the valve core 40 cooperates with the axial upper limit of the limiting protrusion to prevent the valve core 40 from being separated from the limiting sleeve 30.
[0058] It should also be noted that in the first embodiment, the flow hole 24 is provided on the connecting tube 21, but this is not restrictive, and the flow hole 24 can also be provided on the annular end plate 22. Figure 4 and Figure 5 The second embodiment of the present utility model is described in detail.
[0059] like Figure 4 and Figure 5 The second embodiment of the utility model shown also discloses a valve core assembly, and its structure is basically the same as that of the first embodiment, except that, in this embodiment, the flow hole 24 is arranged on the annular end plate 22, rather than on the connecting tube 21. With this arrangement, the direction of the flow hole 24 is consistent with the direction of the valve port 11. On the one hand, when the flow hole 24 is opened, the processing direction is consistent with the radial direction of the limit sleeve 30, that is, perpendicular to the radial direction of the limit sleeve 30, so that the limit sleeve 30 will not be deformed; on the other hand, after the fluid flows out of the valve port 11, it flows out through the flow hole 24 on the annular end plate 22. In this process, since the direction of the flow hole 24 is consistent with the direction of the valve port 11, the flow direction of the fluid changes less, and therefore, the resistance generated is also less, which is more conducive to the flow of the fluid.
[0060] Specifically, if Figure 5 As shown, in this embodiment, there are also a plurality of flow holes 24 , and the plurality of flow holes 24 are arranged on the annular end plate 22 at intervals along the circumferential direction.
[0061] like Figure 6 The third embodiment of the present invention shown also discloses a valve core assembly, the structure of which is basically the same as that of the first embodiment, except that, in this embodiment, the connecting sleeve 20 includes: a connecting tube 21, an annular end plate 22 and a plurality of connecting arms 23.
[0062] like Figure 6 As shown, the axis of the connecting cylinder 21 is parallel to the central axis of the valve port 11, and the connecting cylinder 21 is connected to the valve port member 10; the annular end plate 22 is perpendicular to the axis of the connecting cylinder 21, and the annular end plate 22 and the connecting cylinder 21 are spaced apart in the axial direction, and the inner peripheral wall of the annular end plate 22 is connected to the limiting sleeve 30; each connecting arm 23 is connected between the connecting cylinder 21 and the outer peripheral wall of the annular end plate 22, and all the connecting arms 23 are circumferentially spaced around the axis of the connecting cylinder 21, and a flow hole 24 is formed between two adjacent connecting arms 23. In this embodiment, the connecting cylinder 21 is the first end of the connecting sleeve 20, the annular end plate 22 is the second end of the connecting sleeve 20, and the flow hole 24 is between two adjacent connecting arms 23. In this way, the surface of the connecting sleeve 20 is fully utilized, so that the flow area of the flow hole 24 accounts for a large proportion, thereby effectively reducing the flow resistance of the fluid and improving the flow efficiency of the fluid.
[0063] In this embodiment, the connecting arm 23 is an arc-shaped structure. Figure 6 It can be seen that the diameter of the annular end plate 22 is smaller than the outer diameter of the connecting tube 21. In the present embodiment, the diameter of the annular end plate 22 is equivalent to the minimum outer diameter of the connecting sleeve 20. By adopting the connecting arm 23 with an arc structure, the flow surface of the flow hole 24 is no longer a plane, but is also equivalent to an arc surface. Therefore, the direction of a part of the flow hole 24 is consistent with the direction of the valve port 11. During the process of the fluid flowing from the valve port 11 to the flow hole 24, the flow direction of the fluid changes less, and therefore, the resistance generated is also less. Therefore, the resistance to fluid flow can be effectively reduced.
[0064] According to a second aspect of the utility model, a scenario in which a valve core assembly is applied to a one-way valve is disclosed, wherein: Figure 7 This is a schematic diagram of the first embodiment applied to a one-way valve. Figure 8 This is a schematic diagram of the second embodiment applied to a one-way valve. The two structures are basically the same, and the only difference is the valve core assembly. The following takes the application scenario of the first embodiment as an example to specifically describe the structure of the one-way valve:
[0065] like Figure 7As shown, the one-way valve comprises: a valve seat 50 and the above-mentioned valve core assembly. The valve seat 50 has a first end and a second end along the direction of the central axis (x axis) of the valve port 11, and the first end of the valve seat 50 is used to connect the pipeline; the valve port member 10 of the valve core assembly is connected to the second end of the valve seat 50, the connecting sleeve 20, the limiting sleeve 30 and the valve core 40 are all located in the valve seat 50, and a flow passage 53 is formed between the outer peripheral wall of the connecting sleeve 20 and the inner peripheral wall of the valve seat 50, and between the limiting sleeve 30 and the inner peripheral wall of the valve seat 50; in the closed valve position, the first end of the valve core 40 blocks the valve port 11 to prevent the valve from flowing in the first direction (from the valve seat 11 to the valve seat 11). Figure 7 In the open position, the valve port 11 is connected to the flow channel 53 through the flow hole 24, so that the fluid flowing in the second direction opposite to the first direction (from the right to the left) passes through the valve port 11; in the open position, the valve port 11 is connected to the flow channel 53 through the flow hole 24, so that the fluid flowing in the second direction opposite to the first direction (from the right to the left) passes through the valve port 11; Figure 7 The fluid flowing from left to right in the valve body passes through the valve port 11.
[0066] like Figure 7 As shown, the valve seat 50 includes: a cylindrical body 51 and a connecting pipe 52. The first end of the cylindrical body 51 is used to connect with the valve mouth member 10, and the connecting sleeve 20, the limiting sleeve 30 and the valve core 40 are all located in the cylindrical body 51; the connecting pipe 52 is used to connect with the pipeline, and the connecting pipe 52 is connected to the second end of the cylindrical body 51 and is integrally formed with the cylindrical body 51, and the outer diameter of the connecting pipe 52 is smaller than the outer diameter of the cylindrical body 51. Since the cylindrical body 51 and the connecting pipe 52 are integrally formed, the connection is more firm and reliable. In this embodiment, the valve seat 50 can be formed by stamping of a plate or by stretching of a pipe. The use of stamping or stretching can simplify the process steps, shorten the process time, reduce time costs, and improve production efficiency.
[0067] like Figure 7 As shown, the first end of the connecting tube 52 is connected to the cylindrical body 51, and the second end of the connecting tube 52 is provided with an outer flange 522 for welding. During assembly, the pipeline is plugged into the connecting tube 52 from the second end of the connecting tube 52. By providing the outer flange 522, the contact area between the connecting tube 52 and the solder can be increased during welding, thereby improving the reliability of the connection.
[0068] Furthermore, in this embodiment, a limiting structure 521 for limiting the assembly position of the pipeline is provided on the connecting pipe 52. By providing the limiting structure 521, the pipeline can be prevented from entering the cylindrical body 51 when the pipeline is installed, thereby improving the assembly accuracy and efficiency. In this embodiment, the limiting structure 521 of the connecting pipe 52 is an annular limiting protrusion formed on the inner wall of the connecting pipe 52 by the pipe wall of the connecting pipe 52 being recessed inward.
[0069] It should be noted that, in the present embodiment, the pipeline is plugged into the interior of the connecting pipe 52, but this is not restrictive. In some other embodiments not shown in the figure, the connecting pipe 52 can be plugged into the interior of the pipeline.
[0070] According to a third aspect of the utility model, an air conditioner is also disclosed, comprising the one-way valve mentioned above.
[0071] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.
Claims
1. A valve core assembly, characterized in that: include: A valve port member (10) having a valve port (11), wherein the valve port (11) has a central axis; a connecting sleeve (20) having a first end and a second end in a direction along the central axis of the valve port (11), the first end of the connecting sleeve (20) being connected to the valve port member (10), the valve port (11) being located in the connecting sleeve (20), and the connecting sleeve (20) being provided with a flow hole (24) communicating with the interior thereof; A limiting sleeve (30) is connected to the second end of the connecting sleeve (20), the interior of the limiting sleeve (30) is communicated with the interior of the connecting sleeve (20), and the minimum outer diameter of the connecting sleeve (20) is greater than the outer diameter of the limiting sleeve (30); A valve core (40) is movably arranged in the limiting sleeve (30) along the direction of the central axis of the valve port (11), and the valve core (40) has a first end facing the valve port (11) and a second end facing away from the valve port (11); The valve core (40) is configured to be movable relative to the limiting sleeve (30) between a valve opening position and a valve closing position; In the valve closing position, the first end of the valve core (40) abuts against the side wall of the valve port (11) to block the valve port (11), and the second end of the valve core (40) is located in the limiting sleeve (30); In the valve opening position, the first end of the valve core (40) is separated from the side wall of the valve port (11), and the valve port (11) is connected to the flow hole (24).
2. The valve core assembly according to claim 1, characterized in that: The connecting sleeve (20) and the limiting sleeve (30) are an integrally formed structure.
3. The valve core assembly according to claim 1, characterized in that: The connecting sleeve (20) comprises: A connecting tube (21), the axis of which is parallel to the central axis of the valve port (11), a first end of the connecting tube (21) is connected to the valve port member (10), and a connecting channel (211) is formed inside the connecting tube (21); The annular end plate (22) is perpendicular to the axis of the connecting tube (21), the outer peripheral wall of the annular end plate (22) is connected to the second end of the connecting tube (21), the inner peripheral wall of the annular end plate (22) is connected to the limiting sleeve (30), and the connecting tube (21), the annular end plate (22) and the limiting sleeve (30) form a step structure.
4. The valve core assembly according to claim 3, characterized in that: The flow hole (24) is arranged on the outer peripheral wall of the connecting cylinder (21) or on the annular end plate (22), and the flow hole (24) is communicated with the connecting channel (211).
5. The valve core assembly according to claim 4, characterized in that: There are a plurality of flow holes (24), and the plurality of flow holes (24) are distributed at intervals around the axis of the connecting tube (21).
6. The valve core assembly according to claim 5, characterized in that: The flow hole (24) is a long hole, and the length of the flow hole (24) in the direction surrounding the axis of the connecting tube (21) is greater than the distance between two adjacent flow holes (24).
7. The valve core assembly according to claim 1, characterized in that: The connecting sleeve (20) comprises: A connecting tube (21), the axis of which is parallel to the central axis of the valve port (11), and the connecting tube (21) is connected to the valve port member (10); an annular end plate (22) which is perpendicular to the axis of the connecting tube (21); the annular end plate (22) and the connecting tube (21) are spaced apart in the axial direction; and the inner peripheral wall of the annular end plate (22) is connected to the limiting sleeve (30); A plurality of connecting arms (23), each of the connecting arms (23) being connected between the connecting tube (21) and the outer peripheral wall of the annular end plate (22), all of the connecting arms (23) being circumferentially spaced and distributed around the axis of the connecting tube (21), and the flow hole (24) being formed between two adjacent connecting arms (23).
8. The valve core assembly according to claim 7, characterized in that: The connecting arm (23) is an arc-shaped structure.
9. The valve core assembly according to claim 1, characterized in that: The valve port member (10) comprises: An annular body (12) is used to connect to a fixed object, the annular body (12) axially having a first end, a second end and a first channel (121) penetrating from the first end to the second end of the annular body (12), and the connecting sleeve (20) is sleeved on the outer peripheral wall of the annular body (12); An annular protrusion (13) is connected to the first end of the annular body (12), and an axially penetrating second channel (131) is provided inside the annular protrusion (13), a first end of the second channel (131) is connected to the first channel (121), and a second end of the second channel (131) forms the valve port (11).
10. The valve core assembly according to claim 9, characterized in that: An annular groove (122) is provided on the outer peripheral wall of the annular main body (12), and the connecting sleeve (20) is located in the annular groove (122).
11. The valve core assembly according to claim 1, characterized in that: The valve core (40) is a cup-shaped hollow structure.
12. A one-way valve, characterized in that: include: A valve core assembly according to any one of claims 1 to 11.
13. An air conditioner, characterized in that: Includes the one-way valve as described in claim 12.