One-way valve
By using a magnet reset module and a heat dissipation device in the one-way valve, the sealing problem of the heat pump air conditioner one-way valve at low pressure difference is solved, achieving better sealing effect and reliability and avoiding medium leakage.
Patent Information
- Application Number
- CN202422746088.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-09
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-11-09
AI Technical Summary
When the pressure difference between the two ends of the existing heat pump air conditioner one-way valve is small, the valve core cannot be completely sealed, and there is a risk of medium leakage.
A magnet reset module and a heat dissipation device are used to enhance the sealing effect of the valve core. The suction of the magnet ensures that the valve core fits the sealing boss. The heat dissipation sleeve and heat dissipation layer are used to improve the heat dissipation effect of the magnet to prevent the sealing from decreasing due to temperature rise.
It effectively avoids medium leakage, improves the sealing and reliability of the one-way valve, and ensures the normal circulation of refrigerant in different modes.
Smart Images
Figure CN223331198U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of one-way valve equipment, in particular to a one-way valve used in an air-conditioning system. Background Art
[0002] In heat pump air conditioners, the check valve is a key component in switching between cooling and heating modes. In cooling mode, the refrigerant flows in one direction, guided and restricted by the check valve. In heating mode, the refrigerant's flow changes direction. The check valve, in conjunction with other components such as the four-way valve, alters the refrigerant's circulation path, switching the air conditioner from a cooling cycle to a heating cycle.
[0003] The one-way valve used in the existing heat pump air conditioner is unable to achieve one-way complete sealing in the valve body due to the small pressure difference between the two ends during use, which may cause the valve core to be unable to achieve one-way complete sealing in the valve body, posing a risk of medium leakage. Utility Model Content
[0004] In order to solve the above problems, an embodiment of the present utility model provides a one-way valve with better sealing effect.
[0005] In order to achieve the above-mentioned purpose, the embodiment of the present utility model specifically adopts the following technical scheme: a one-way valve, including a shell, a valve core is provided in the middle of the shell, a sealing boss is provided on one side of the valve core, and a limiting component is provided on the other side, and a reset module for enhancing the sealing strength of the valve core is provided on the side wall of the shell.
[0006] As a further improvement of the above technical solution:
[0007] The reset module includes a magnet arranged outside the housing, and a heat dissipation device is arranged outside the magnet.
[0008] The heat dissipation device includes a heat dissipation sleeve, one end of the heat dissipation sleeve is connected to the shell, and the other end extends to the outside of the magnet.
[0009] A heat dissipation gap is reserved between the heat dissipation sleeve and the magnet, and a heat dissipation layer is laid in the heat dissipation gap.
[0010] The magnet is annular and is designed to coincide with the center line of the sealing boss.
[0011] The limiting assembly includes a limiting ring plate, and a return spring is provided on the side of the limiting ring plate facing the valve core.
[0012] The valve core is in a frustum shape, and its diameter gradually increases from the side close to the sealing boss to the outside.
[0013] The inner side wall of the sealing boss is provided with a sealing inclined surface used in conjunction with the side wall of the valve core.
[0014] The beneficial effects of the embodiments of the present utility model are as follows: the one-way valve includes a shell, a valve core is provided in the middle of the shell, a sealing boss is provided on one side of the valve core, and a limit assembly is provided on the other side. A reset module for enhancing the sealing strength of the valve core is provided on the side wall of the shell. The reset module can apply a force to the valve core to move toward the sealing boss, ensuring that the valve core and the sealing boss always remain in contact, thereby avoiding leakage of the medium at the valve core. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 It is a cross-sectional view of the utility model.
[0017] In the figure: 1. Housing; 2. Valve core; 3. Sealing boss; 4. Magnet; 5. Heat dissipation sleeve; 6. Heat dissipation gap; 7. Heat dissipation layer; 8. Limiting ring plate; 9. Return spring; 10. Sealing slope. DETAILED DESCRIPTION
[0018] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.
[0019] like Figure 1-2 As shown, the one-way valve of this embodiment includes a shell 1, a valve core 2 is provided in the middle of the shell 1, a sealing boss 3 is provided on one side of the valve core 2, and a limit assembly is provided on the other side. A reset module for enhancing the sealing strength of the valve core 2 is provided on the side wall of the shell 1. The reset module can apply a force to the valve core 2 to move toward the sealing boss 3, ensuring that the valve core 2 and the sealing boss 3 always remain in contact, thereby avoiding leakage of the medium at the valve core 2.
[0020] The reset module includes a magnet 4 installed on the outside of the shell 1. The valve core 2 is made of magnetic material such as iron. The suction force of the magnet 4 can ensure that the valve core 2 fits the sealing boss 3, thereby improving the sealing effect. A heat dissipation device is provided on the outside of the magnet 4. The heat dissipation device can enhance the heat dissipation effect of the magnet 4 and avoid a decrease in sealing due to a decrease in magnetism after the temperature rises.
[0021] The heat dissipation device includes a heat dissipation sleeve 5, one end of the heat dissipation sleeve 5 is connected to the shell 1, and the other end extends to the outside of the magnet 4. A heat dissipation gap 6 is reserved between the heat dissipation sleeve 5 and the magnet 4. A heat dissipation layer 7 is laid in the heat dissipation gap 6. The heat dissipation layer 7 uses silicone grease, which can improve the heat dissipation effect of the magnet 4.
[0022] The magnet 4 is annular and is designed to coincide with the center line of the sealing boss 3, ensuring that the adsorption force between the valve core 2 and the magnet 4 remains in an optimal state.
[0023] The limiting assembly includes a limiting ring plate 8, and a return spring 9 is provided on the side of the limiting ring plate 8 facing the valve core 2. The return spring 9 can limit the valve core 2 and at the same time apply a thrust to the magnet 4 toward the sealing boss 3 to improve the sealing effect.
[0024] The valve core 2 is in the shape of a truncated cone, and its diameter gradually increases as it extends outward from the side close to the sealing boss 3. A sealing bevel 10 is provided on the inner wall of the sealing boss 3 for use with the side wall of the valve core 2. The sealing bevel 10 can improve the fit with the side wall of the valve core 2 and enhance the sealing effect.
[0025] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0026] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0027] The term "comprise" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, article, or apparatus / device.
[0028] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.
Claims
1. A one-way valve, comprising a housing (1), characterized in that: A valve core (2) is provided in the middle of the housing (1), a sealing boss (3) is provided on one side of the valve core (2), and a limit assembly is provided on the other side, and a reset module for enhancing the sealing strength of the valve core (2) is provided on the side wall of the housing (1).
2. The one-way valve according to claim 1, characterized in that: The reset module comprises a magnet (4) arranged outside the housing (1), and a heat dissipation device is provided outside the magnet (4).
3. The one-way valve according to claim 2, characterized in that: The heat dissipation device comprises a heat dissipation sleeve (5), one end of which is connected to the housing (1) and the other end of which extends to the outside of the magnet (4).
4. The one-way valve according to claim 3, characterized in that: A heat dissipation gap (6) is reserved between the heat dissipation sleeve (5) and the magnet (4), and a heat dissipation layer (7) is laid in the heat dissipation gap (6).
5. The one-way valve according to claim 2, characterized in that: The magnet (4) is annular and is designed to coincide with the center line of the sealing boss (3).
6. The one-way valve according to claim 1, characterized in that: The limiting assembly comprises a limiting ring plate (8), and a return spring (9) is provided on the side of the limiting ring plate (8) facing the valve core (2).
7. The one-way valve according to claim 1, characterized in that: The valve core (2) is in a frustum shape, and its diameter gradually increases as it extends outward from the side close to the sealing boss (3).
8. The one-way valve according to claim 7, characterized in that: The inner side wall of the sealing boss (3) is provided with a sealing slope (10) used in conjunction with the side wall of the valve core (2).