Valve seat structure and one-way valve
By designing round table-shaped elastic parts and magnetic parts in a check valve to optimize the valve core structure, the noise problem during the operation of the air conditioner is solved, the user experience is improved and the service life is extended.
Patent Information
- Application Number
- CN202422833570.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-11-20
AI Technical Summary
Existing check valves generate noise when the air conditioner is running, resulting in poor user experience, especially when the refrigerant leaks and impact sounds caused by the squirting of refrigerant during low-frequency operation.
A valve seat structure is designed, using an elastic member in the shape of a round table, arranged in the main body and partially protruded, through the longitudinal section of the main body, the spring compression direction is restricted, the conversion kinetic energy is reduced, the impact force is reduced, and the contact between the valve core and the valve seat is optimized through the magnetic member and the raised structure.
It effectively reduces the noise of the check valve, improves the user experience, extends the service life, and reduces the impact fatigue between the valve core and the valve seat.
Smart Images
Figure CN223294317U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of one-way valves, and in particular relates to a valve seat structure and a one-way valve. Background Art
[0002] Due to the use of existing check valves during the development of air conditioning products, when the compressor operates at low frequencies, the electronic expansion valve regulates the pressure difference between the front and rear of the check valve. High-frequency operation results in a large pressure differential, while low-frequency operation results in a smaller pressure differential. Furthermore, the check valve also leaks a certain amount of refrigerant, and at low pressures, the refrigerant leaks more. This further reduces the pressure differential, causing the check valve to vibrate. This metallic clattering sound is noticeable, and this clattering sound is amplified by the condenser, affecting the user experience. Therefore, an improved check valve is needed to reduce noise.
[0003] Since the one-way valve in the prior art generates noise when the air conditioner is running, resulting in poor user experience and other technical problems, the present invention studies and designs a valve seat structure and a one-way valve. Utility Model Content
[0004] Therefore, the utility model provides a valve seat structure and a one-way valve, which can solve the technical problem in the prior art that the one-way valve generates noise during operation of the air conditioner, resulting in a poor user experience.
[0005] In order to solve the above problems, the utility model provides a valve seat structure, including: a main body, an elastic member is arranged in the main body, the elastic member at least partially extends out of the main body, and the elastic member is truncated cone-shaped with the longitudinal section of the main body as the projection surface.
[0006] In some embodiments, the elastic member is a spring, the inner wall of the main body is provided with a first groove, the first groove extends along the circumference of the main body, and one end of the elastic member is provided in the first groove.
[0007] In some embodiments, a depth of the first groove is 1.4 times the diameter of the elastic material of the elastic member.
[0008] In some embodiments, along the direction from the inside to the outside of the main body, the first circle of elastic material of the elastic member is located in the first groove, and the winding diameter of the second circle of elastic material of the elastic member is 1.5 mm smaller than the inner diameter of the main body.
[0009] In some embodiments, along the direction from the inside to the outside of the main body, the coil diameters of the second circle of elastic material of the elastic member to the fourth circle of elastic material of the elastic member decrease successively, the coil diameters of the elastic material of two adjacent circles of the elastic member decrease by 1 mm, and the coil diameters of the fifth circle of elastic material of the elastic member to the end of the elastic member extending out of the main body are the same.
[0010] In some embodiments, when the elastic member is in an unstressed state, the length of the elastic member does not exceed 12 mm, and when the elastic member is compressed to an incompressible state, the length of the elastic member is 6-8 mm.
[0011] In some embodiments, the length of the elastic member extending from the main body portion is smaller than the length of the elastic member within the main body.
[0012] The utility model also provides a one-way valve, which includes the above-mentioned valve seat structure.
[0013] In some embodiments, the one-way valve includes a valve core, and a plurality of second protrusions are provided on the outer peripheral wall of the valve core along the circumference of the valve core, and the second protrusions extend along the axial direction of the valve core. A magnetic part is provided at one end of the valve core facing the elastic part, and the magnetic part is embedded in the end of the valve core facing the elastic part, and the surface of the end of the valve core facing the elastic part is galvanized.
[0014] In some embodiments, the one-way valve includes a tube body, the main body is sleeved in the tube body, and along the circumference of the tube body, the inner wall of the tube body is provided with a first protrusion, and the outer wall of the main body is provided with a second groove, and the first protrusion is located in the second groove.
[0015] The utility model also provides a one-way valve, which includes the above-mentioned valve seat structure.
[0016] The valve seat structure and the one-way valve provided by the utility model have the following beneficial effects:
[0017] An elastic member is installed within the main body, extending at least partially outward from the main body and forming a truncated cone shape, projected across the longitudinal cross-section of the main body. This limits spring movement in the compression direction, reduces kinetic energy conversion, reduces the impact force and noise generated by movement, and improves user experience. Because the valve core and valve seat are in linear contact, impact fatigue is reduced to a certain extent, extending service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the embodiments or the description of the prior art. The drawings described below are merely exemplary. For those skilled in the art, other implementation drawings can be derived from the provided drawings without inventive effort.
[0019] Figure 1 This is an assembly structure diagram of the valve seat structure of the utility model;
[0020] Figure 2It is a side view of the valve seat structure of the utility model;
[0021] Figure 3 This is a structural diagram of another one-way valve of the utility model;
[0022] Figure 4 It is a partial structural diagram of another one-way valve of the utility model.
[0023] The accompanying drawings are:
[0024] 1. Main body; 2. Elastic member; 3. First groove; 4. First protrusion; 5. Second groove; 6. Tube; 7. Valve core. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0026] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.
[0027] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0028] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.
[0029] See also Figure 1-4 As shown, according to an embodiment of the present invention, a valve seat structure is provided, comprising: a main body 1, wherein an elastic member 2 is provided in the main body 1, wherein the elastic member 2 at least partially extends out of the main body 1, and the longitudinal section of the main body 1 is used as a projection surface, and the elastic member 2 is in the shape of a truncated cone. In this technical solution, an elastic member 2 is provided in the main body 1, wherein the elastic member 2 at least partially extends out of the main body 1, and the longitudinal section of the main body 1 is used as a projection surface, and the elastic member 2 is in the shape of a truncated cone. In this way, the movement in the compression direction of the spring is limited, the converted kinetic energy is reduced, the impact force during movement is reduced, the noise generated by the movement and impact is reduced, and the user experience is improved. Since the valve core and the valve seat are in line-surface contact, the impact fatigue is reduced to a certain extent, and the service life is extended.
[0030] Because a straight-cylindrical spring can only fit around the outer circumference of the valve core, a frustum-shaped spring can be attached to the top of the valve core. When the spring is positioned outside, the contact surface between the valve core and the valve seat becomes deeper and further inward, significantly altering the existing structure and increasing the mold cost for the new part.
[0031] In some embodiments, the elastic member 2 is a spring, and the inner wall of the main body 1 is provided with a first groove 3, which extends along the circumference of the main body 1. One end of the elastic member 2 is disposed within the first groove 3. In this technical solution, the first groove 3 is annular, and the elastic member 2 is fixed by the first groove 3 to ensure that the elastic member 2 does not move.
[0032] In some embodiments, the depth of the first groove 3 is 1.4 times the diameter of the elastic material of the elastic member 2. In this technical solution, the valve seat has a first groove 3 inside, and the larger end of the truncated cone-shaped compression spring is secured by wrapping around the first groove 3 inside the valve seat. To prevent it from falling out, the groove depth is 1.4 times the diameter of the elastic material of the compression spring.
[0033] In some embodiments, along the direction from the inside to the outside of the main body 1, the first circle of elastic material of the elastic member 2 is located within the first groove 3, and the diameter of the second circle of elastic material of the elastic member 2 is 1.5 mm smaller than the inner diameter of the main body 1. In this technical solution, to ensure that there is no collision with the inner wall of the valve seat, along the direction from the inside to the outside of the main body 1, the first circle of elastic material of the elastic member 2 is located within the first groove 3, and the diameter of the second circle of elastic material of the elastic member 2 is 1.5 mm smaller than the inner diameter of the main body 1.
[0034] In some embodiments, the diameter of the coils of elastic material of the elastic member 2 decreases from the inside out of the main body 1 to the fourth coil, with the diameter of the coils of elastic material of the elastic member 2 decreasing by 1 mm between adjacent coils. The coils of elastic material of the elastic member 2 from the fifth coil to the end of the elastic member 2 extending from the main body 1 remain the same. Furthermore, when the elastic member 2 is unloaded, its length does not exceed 12 mm. When compressed to an incompressible state, its length is 6-8 mm. In this technical solution, due to the truncated cone-shaped spring, the diameter of the coils needs to decrease in the upward direction. To ensure that it does not collide with the inner wall of the valve core, the diameter of the coils of elastic material of the elastic member 2 decreases from the inside out of the main body 1 to the fourth coil, with the diameter of the coils of elastic material of the elastic member 2 decreasing by 1 mm between adjacent coils. The coils of elastic material of the elastic member 2 from the fifth coil to the end of the elastic member 2 extending from the main body 1 remain the same. At the same time, in order to ensure the deformation of the spring in the compressor direction, when the elastic part 2 is in a stress-free state, the length of the elastic part 2 does not exceed 12 mm, and when the elastic part 2 is compressed to an incompressible state, the length of the elastic part 2 is 6-8 mm.
[0035] In some embodiments, the length of the elastic member 2 extending from the main body 1 is less than the length of the elastic member 2 within the main body 1. In this technical solution, the length of the elastic member 2 extending from the main body 1 exceeds half of the overall spring, and the small diameter can cause the spring to bend. Enclosing the majority of the length within the valve seat can prevent bending. The end of the elastic member 2 extending from the main body 1 is horizontal. The valve core dimensions are consistent with mass production dimensions.
[0036] The utility model also provides a one-way valve, comprising the valve seat structure mentioned above.
[0037] In some embodiments, the one-way valve includes a valve core 7, and a plurality of second protrusions are provided on the outer peripheral wall of the valve core 7 along the circumference of the valve core 7, and the second protrusions extend along the axial direction of the valve core 7. A magnetic member is provided on one end of the valve core 7 facing the elastic member 2, and the magnetic member is embedded in the end of the valve core 7 facing the elastic member 2. The surface of the end of the valve core 7 facing the elastic member 2 is galvanized. In this technical solution, the one-way valve includes a valve core 7, and a plurality of second protrusions are provided on the outer peripheral wall of the valve core 7 along the circumference of the valve core 7, and the second protrusions extend along the axial direction of the valve core 7. The second protrusions are arranged at intervals along the circumference of the valve core 7. Preferably, there are 6 second protrusions, and 6 strip-shaped protrusions are added around the valve core 7 to reduce the distance at which the valve core collides with the inner wall of the copper tube under the action of fluid pressure, reduce the impact distance of the valve core colliding with the inner wall of the copper tube, and reduce the noise generated by the impact. The end of the valve core 7 facing the elastic part 2 is provided with a magnetic part, which is used to generate suction to the spring. The magnetic part is embedded in the end of the valve core 7 facing the elastic part 2, and the surface of the end of the valve core 7 facing the elastic part 2 is galvanized. The purpose of using magnetic attraction here is that when the pressure is too high, the valve core can be separated from the spring to prevent the spring from falling off the valve seat. It is not recommended to use welding to fix the two. Because the valve core and the valve seat are both made of brass, high-temperature damage should be avoided. Copper tubes are suitable for less than 10mm and between 75mm-90mm in length. The existing valve core has a hollow structure, and a magnet sheet is embedded under the position where the head contacts the spring, and the surface is galvanized. The magnetic part generates suction to the elastic part 2. During the movement of the valve core, the spring reduces the number and strength of the closing impact. It can also limit the rotation direction of the valve core, further reducing the fluid aerodynamic noise.
[0038] In some embodiments, the one-way valve includes a tube body 6, and the main body 1 is sleeved within the tube body 6. A first protrusion 4 is provided on the inner wall of the tube body 6 along the circumference of the tube body 6, and a second groove 5 is provided on the outer wall of the main body 1. The first protrusion 4 is located within the second groove 5. In this technical solution, the protrusion 4 and the second groove 5 are annular. Furthermore, the tube body 6 is a copper tube, and the tube body 6 and the main body 1 can be fixed by squeezing a concave ring between the copper tube to prevent the main body 1 from moving, thereby limiting the position of the main body 1.
[0039] When refrigerant flows in this direction, the spring is pulled, and in its natural state, the valve core and valve seat are separated. At low pressures, this displacement is reduced, reducing the noise caused by impact with other metal surfaces. At higher pressures, the valve core releases the spring and presses against the other side. The valve core structure has a flow hole that allows refrigerant to pass through. When refrigerant flows in the opposite direction, the valve core and spring immediately engage, reducing the displacement at low pressures and reducing the noise caused by impact with other metal surfaces.
[0040] This new check valve, designed to fit within the limited space of existing mass-produced air conditioning check valves, adjusts its structure, adds a spring, and optimizes the valve core and valve seat. This limits the back-and-forth movement of the check valve during low-frequency operation of the cooling and heating compressor, eliminating the noise caused by internal movement.
[0041] It is easy for those skilled in the art to understand that, under the premise of no conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.
[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention. The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention. Such improvements and variations shall also be considered within the scope of protection of the present invention.
Claims
1. A valve seat structure, characterized in that: include: A main body (1) is provided with an elastic member (2) in the main body (1), the elastic member (2) at least partially protruding from the main body (1), and with the longitudinal section of the main body (1) as a projection surface, the elastic member (2) is in a truncated cone shape.
2. The valve seat structure according to claim 1, characterized in that: The elastic member (2) is a spring, and the inner wall of the main body (1) is provided with a first groove (3), the first groove (3) extends along the circumference of the main body (1), and one end of the elastic member (2) is provided in the first groove (3).
3. The valve seat structure according to claim 2, characterized in that: The groove depth of the first groove (3) is 1.4 times the diameter of the elastic material of the elastic member (2).
4. The valve seat structure according to claim 2, characterized in that: Along the direction from the inside to the outside of the main body (1), the first circle of elastic material of the elastic member (2) is located in the first groove (3), and the winding diameter of the second circle of elastic material of the elastic member (2) is 1.5 mm smaller than the inner diameter of the main body (1).
5. The valve seat structure according to claim 4, characterized in that: Along the direction from the inside to the outside of the main body (1), the coil diameters of the second coil of elastic material of the elastic member (2) to the fourth coil of elastic material of the elastic member (2) decrease successively, the coil diameters of the elastic material of two adjacent coils of the elastic member (2) decrease by 1 mm, and the coil diameters of the fifth coil of elastic material of the elastic member (2) to the end of the elastic member (2) extending out of the main body (1) are the same.
6. The valve seat structure according to claim 1, characterized in that: When the elastic member (2) is in a stress-free state, the length of the elastic member (2) does not exceed 12 mm; when the elastic member (2) is compressed to an incompressible state, the length of the elastic member (2) is 6-8 mm.
7. The valve seat structure according to claim 2, characterized in that: The length of the elastic member (2) extending out of the main body (1) is smaller than the length of the elastic member (2) inside the main body (1).
8. A one-way valve, characterized in that: The valve seat structure comprises the valve seat structure according to any one of claims 1 to 7.
9. The one-way valve according to claim 8, characterized in that: The one-way valve includes a valve core (7), and a plurality of second protrusions are provided on the outer peripheral wall of the valve core (7) along the circumference of the valve core (7), and the second protrusions extend along the axial direction of the valve core (7). A magnetic part is provided at one end of the valve core (7) facing the elastic part (2), and the magnetic part is embedded in the end of the valve core (7) facing the elastic part (2). The surface of the end of the valve core (7) facing the elastic part (2) is galvanized.
10. The one-way valve according to claim 8, characterized in that: The one-way valve comprises a tube body (6), the main body (1) is sleeved in the tube body (6), the inner wall of the tube body (6) is provided with a first protrusion (4) along the circumference of the tube body (6), the outer wall of the main body (1) is provided with a second groove (5), and the first protrusion (4) is located in the second groove (5).