Two-way throttle valve for air conditioner

Abstract

The utility model relates to the technical field of air conditioner throttle valves, in particular to a two-way throttle valve for an air conditioner, which comprises a valve body, a valve core is arranged in the valve body in a matching way, the valve core comprises a shell, a positioning groove is arranged on the outer wall of the shell, a convex edge matched with the positioning groove is arranged on the inner wall of the valve body, and the convex edge is arranged on the inner wall of the valve body. A plurality of throttling holes are formed in the shell, and valve heads with different guides are arranged in the throttling holes respectively, so that the aims of simplifying the structure, being convenient and fast to install and efficiently adjusting the flow of a refrigerant are achieved, the reliability and durability of the throttling valve are improved, and the production difficulty is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning throttle valves, in particular to a two-way throttle valve for air-conditioning. Background Art

[0002] The two-way throttle valve controls the cooling effect of the air-conditioning system by adjusting the flow of refrigerant. The refrigerant enters the throttle valve from the compressor outlet, and then the flow of the refrigerant is controlled by the valve regulator. The throttle valve controls the flow of refrigerant by changing the opening of the valve, thereby adjusting the cooling effect of the air-conditioning system.

[0003] In the refrigeration system of the prior art, the evaporator, condenser, compressor and throttle valve are the four indispensable parts. They are connected in sequence by pipes to form a closed system. The refrigerant circulates continuously in the system, changes its state, and exchanges heat with the outside world. The two-way throttle valve is connected between the evaporator and the condenser. After the liquid refrigerant absorbs the heat of the cooled object in the evaporator, it vaporizes into low-temperature, low-pressure steam, is sucked into the compressor, compressed into high-pressure, high-temperature steam, and then discharged into the condenser. In the condenser, it releases heat to the cooling medium (water or air), condenses into high-pressure liquid, and is throttled by the two-way throttle valve to low-pressure, low-temperature refrigerant, which enters the evaporator again to absorb heat and vaporize, thereby achieving the purpose of circulating refrigeration.

[0004] Most of the existing two-way throttle valves have relatively complex structures and are difficult to install and match with the main pipeline during production. Therefore, this technical solution is proposed to improve them. Utility Model Content

[0005] The purpose of the utility model is to overcome the disadvantage of the prior art that the two-way throttle valve is difficult to install during production, and to provide a two-way throttle valve for air conditioning.

[0006] In order to achieve the above-mentioned purpose, the embodiment of the present utility model specifically adopts the following technical scheme: a two-way throttle valve for air conditioning, including a valve body, a valve core is arranged inside the valve body, the valve core includes a shell, a positioning groove is arranged on the outer wall of the shell, and a convex ridge matching the positioning groove is arranged on the inner wall of the valve body, a plurality of throttling holes are arranged inside the shell, and valve heads with different guides are respectively arranged inside the throttling holes.

[0007] Furthermore, there are four throttle holes, and the throttle holes arranged opposite to each other have the same orientation.

[0008] Furthermore, a conical head is provided at one end of the valve head, a valve column is provided at the tail of the valve head, and the interior of the valve column is hollow.

[0009] Furthermore, two planes for passing fluid are arranged opposite to each other on the side surfaces of the valve column.

[0010] Furthermore, the other side surface of the valve column is set as an arc surface, the bottom of the valve column is provided with a clamping groove for positioning, and the bottom of the throttle hole is provided with a limiting column that matches the clamping groove.

[0011] Furthermore, the inlet of the throttle hole is provided with a limiting ring abutting against the side surface of the conical head.

[0012] The beneficial effects of the embodiments of the present invention are as follows: the valve core is designed to include a structure of a shell, and a positioning groove is provided on the outer wall of the shell. The valve body can also be installed inside and the valve body and the valve core can be directly pressed together by a hydraulic press. At the same time, the positioning groove can also be processed in advance. During processing, convex ridges are directly pressed out on the side wall of the valve body to cooperate with the positioning grooves. The positioning grooves perfectly cooperate with the convex ridges on the inner wall of the valve body, ensuring stable installation and precise positioning of the valve core in the valve body. The number of throttling holes is set to four, and each pair of relatively arranged throttling holes has the same guide, so that the overall force of the valve core is relatively balanced during use, which not only ensures the uniformity of the throttling effect, but also simplifies the structure of the valve core and improves stability. When the fluid needs to be throttled in different flow directions, it is guided by the valve heads inside different throttling holes to ensure throttling effects in different directions, thereby achieving the goals of simplified structure, convenient installation and efficient regulation of refrigerant flow, which not only improves the reliability and durability of the throttling valve, but also greatly reduces the difficulty of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the overall structure of the valve core of the present utility model;

[0015] Figure 3 This is a schematic diagram of the valve head structure of the utility model;

[0016] Figure 4 This is an enlarged structural diagram of point A of the present utility model;

[0017] In the figure: 1. valve body; 101. convex ridge; 102. positioning groove; 2. valve core; 201. throttle hole; 3. valve head; 301. clamping groove; 302. limit column. 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] See also Figures 1 to 4The embodiment of the utility model discloses a two-way throttle valve for air conditioning, which mainly includes two parts: a valve body 1 and a valve core 2. The valve body 1 is used as the main structure, and a space is designed inside to accommodate and support the valve core 2. The valve core 2 is designed to include a shell structure. The outer wall of the shell is provided with a positioning groove 102. The valve body 1 can also be installed inside and then the valve body 1 and the valve core 2 can be directly pressed together by a hydraulic press. At the same time, the positioning groove 102 can also be processed in advance. During processing, a convex ridge 101 is directly pressed out on the side wall of the valve body 1 to cooperate with the positioning groove 102. The positioning groove 102 is aligned with the inner wall of the valve body 1. The convex ridges 101 on the valve body 1 perfectly match to ensure the stable installation and precise positioning of the valve core 2 in the valve body 1. During processing, the shell diameter of the valve core 2 can be of various specifications, and different valve bodies 1 can be applied according to different needs. In addition, a plurality of throttling holes 201 are carefully arranged inside the shell. The number and diameter of the throttling holes 201 can be selected according to actual use requirements. The valve body 1 and the valve core 2 are set separately, which speeds up the production efficiency. The valve body 1 and the valve core 2 are installed in combination, and the accuracy and stability of the installation position are ensured by the positioning groove 102 and the convex ridges 101, which reduces the production difficulty.

[0020] The number of throttling holes 201 is set according to the production flow rate, and a valve head 3 is arranged inside each throttling hole 201. The valve head 3 has different guide designs to adapt to the flow regulation requirements of the refrigerant in different flow directions. The number of throttling holes 201 is set to four, and each pair of relatively arranged throttling holes 201 has the same guide, so that the overall force of the valve core 2 is more balanced during use, which not only ensures the uniformity of the throttling effect, but also simplifies the structure of the valve core 2 and improves stability. When the fluid needs to be throttled in different flow directions, it is guided by the valve heads 3 inside different throttling holes 201 to ensure the throttling effect in different directions and achieve the purpose of stable use.

[0021] One end of the valve head 3 is designed as a conical head, which helps the refrigerant to produce a smooth flow transition when flowing through and reduce flow resistance. The tail of the valve head 3 is connected to the internal hollow valve column. When the fluid changes direction, the hollow valve column ensures the force space, so that the valve head 3 can quickly block the throttle hole 201. Two planes are specially set on the side of the valve column. The two planes serve as fluid channels, which can more effectively guide the refrigerant through the throttle hole 201 while maintaining the stability of the fluid flow. The other two side surfaces are designed as arc surfaces, which not only reduce the turbulence of the fluid around the valve column, but also The mechanical strength of the valve column is enhanced. A snap-fit ​​groove 301 is designed at the bottom of the valve column, and corresponding to it is a limit column 302 set at the bottom of the throttle hole 201. When the fluid passes through, the valve head 3 moves toward the limit column 302, and the snap-fit ​​groove 301 is snapped with the limit column 302, which limits the valve head 3. When the fluid flows, the position of the valve head 3 is kept stable, the vibration gap of the valve head 3 is reduced, and the noise generated during use is reduced, thereby ensuring the use effect, ensuring the valve head 3 is firmly installed in the throttle hole 201, and preventing the valve head 3 from moving or falling off due to changes in fluid pressure.

[0022] A limit ring is added at the inlet of the throttle hole 201, and the limit ring is in close contact with the side of the conical head, which not only helps to accurately control the flow and pressure of the refrigerant when it enters the throttle hole 201, but also effectively prevents the valve head 3 from shaking due to fluid impact, thereby improving the working stability and durability of the throttle valve, and achieving the goals of simplified structure, convenient installation and efficient regulation of the refrigerant flow, which not only improves the reliability and durability of the throttle valve, but also greatly reduces the difficulty of production.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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 two-way throttle valve for air conditioning, comprising a valve body (1), characterized in that: The valve body (1) is provided with a valve core (2) in cooperation with the valve core (2), which includes a shell, the outer wall of which is provided with a positioning groove (102), the inner wall of which is provided with a convex ridge (101) that matches the positioning groove (102), the interior of which is provided with a plurality of throttling holes (201), and the interiors of the throttling holes (201) are respectively provided with valve heads (3) with different guides.

2. The two-way throttle valve for air conditioning according to claim 1, characterized in that: There are four throttle holes (201) and the throttle holes (201) arranged opposite to each other have the same guide direction.

3. The two-way throttle valve for air conditioning according to claim 1, characterized in that: One end of the valve head (3) is provided with a conical head, and the tail of the valve head (3) is provided with a valve column, and the interior of the valve column is hollow.

4. The two-way throttle valve for air conditioning according to claim 3, characterized in that: Two planes for passing fluid are oppositely arranged on the side surfaces of the valve column.

5. The two-way throttle valve for air conditioning according to claim 4, characterized in that: The other side surface of the valve column is configured as an arcuate surface, the bottom of the valve column is configured with a clamping groove (301) for positioning, and the bottom of the throttle hole (201) is configured with a limiting column (302) that matches the clamping groove (301).

6. The two-way throttle valve for air conditioning according to claim 3, characterized in that: The inlet of the throttle hole (201) is provided with a limiting ring that abuts against the side surface of the conical head.

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