Air conditioner capillary tube with adjustable aperture

Abstract

The utility model belongs to the technical field of air conditioner capillary tubes, and particularly relates to an aperture-adjustable air conditioner capillary tube which comprises a tube body, a circle of electromagnetic coil is arranged on the outer side of the tube body in a sleeving mode, the tube body comprises four arc-shaped plates, the four arc-shaped plates are provided with magnetic faces repelling magnetic force generated by the electromagnetic coil, and an arc-shaped groove is formed between every two arc-shaped plates. A spring is arranged in each arc-shaped groove, an arc-shaped sliding plate sliding in the arc-shaped groove is arranged between every two springs, the electromagnetic controller comprises a power source, a current regulator and a controller, the power source provides current for the current regulator and the controller, the current regulator is electrically connected with the controller, and the controller is electrically connected with the electromagnetic controller. And the controller is electrically connected with the electromagnetic coil. The magnetic force generated by the electromagnetic coil repels the magnetic surface on the arc-shaped plate to drive the arc-shaped plate to move, so that the inner diameter of the pipe body is changed to adjust the aperture, the cost is low, the maintenance is simple, and the practicability is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of air-conditioning capillary tubes, and particularly relates to an air-conditioning capillary tube with an adjustable aperture. Background Art

[0002] In modern air-conditioning systems, capillary tubes play a crucial role as throttling elements in regulating the refrigerant flow rate and controlling the refrigeration and heating effects. However, traditional air-conditioning capillary tubes usually have a fixed aperture, which has many significant limitations in practical applications.

[0003] With the progress of technology and the improvement of people's living standards, the requirements for air-conditioning performance are becoming more diverse and refined. Different usage scenarios, such as different climate conditions, room sizes, number of people, and users' personalized temperature requirements, etc., all pose different requirements for the refrigeration or heating effect and energy efficiency of the air conditioner. Under complex and variable environmental temperature and indoor load conditions, traditional capillary tubes with a fixed aperture cannot flexibly and precisely adjust the refrigerant flow rate according to the actual situation.

[0004] For example, in the hot summer, when the outdoor temperature is extremely high, the air conditioner needs to increase the refrigerant flow rate to quickly lower the indoor temperature and achieve efficient refrigeration; while in relatively mild weather or when the indoor load is small, excessive refrigerant flow rate will lead to waste of energy and unstable operation of the system. Similarly, when heating in winter, it is also necessary to precisely adjust the refrigerant flow rate according to the environmental temperature and indoor demand. However, due to the fixed aperture of traditional capillary tubes, they cannot respond to these changes in a timely and effective manner, which may result in poor refrigeration or heating effects of the air conditioner in some cases, unable to meet the comfort requirements of users, and at the same time increase energy consumption and reduce the energy efficiency ratio of the air-conditioning system.

[0005] In order to overcome these defects of traditional capillary tubes, the industry has made various attempts to achieve adjustable aperture. Some solutions adopt mechanical adjustment structures, such as changing the aperture of the capillary tube through complex gear, rack or lead screw transmission mechanisms. However, such mechanical structures often have problems such as complex structure, numerous components, high manufacturing and maintenance costs, difficult to guarantee adjustment accuracy, and prone to mechanical failures.

[0006] Therefore, we propose an air-conditioning capillary tube with an adjustable aperture. The device uses the magnetic force generated by an electromagnetic coil to repel the magnetic surface on the arc plate, driving the arc plate to move, and then changing the inner diameter of the tube to achieve aperture adjustment, with low cost, simple maintenance, and improved practicality. Content of the Utility Model

[0007] The purpose of this utility model is to provide an adjustable-aperture air-conditioning capillary tube. The capillary tube uses the magnetic force generated by an electromagnetic coil to repel the magnetic surface on the arc-shaped plate, driving the arc-shaped plate to move, thereby changing the inner diameter of the tube body to achieve aperture adjustment. It has low cost, simple maintenance, and improves its practicality.

[0008] The technical solution adopted by this utility model is as follows:

[0009] An adjustable-aperture air-conditioning capillary tube includes a tube body, and a coil of electromagnetic coil is sleeved outside the tube body;

[0010] The tube body includes four arc-shaped plates. Magnetic surfaces that repel the magnetic force generated by the electromagnetic coil are provided on the four arc-shaped plates. Arc-shaped grooves are provided between every two arc-shaped plates. Springs are arranged inside each arc-shaped groove, and arc-shaped sliding plates that slide inside the arc-shaped grooves are arranged between every two springs.

[0011] Furthermore, it also includes an electromagnetic controller. The electromagnetic controller includes a power supply, a current regulator, and a controller. The power supply provides current for the current regulator and the controller. The current regulator is electrically connected to the controller, and the controller is electrically connected to the electromagnetic coil.

[0012] Furthermore, a reinforcing layer is provided on the arc-shaped plate.

[0013] Furthermore, a gasket is designed between the arc-shaped sliding plate and the arc-shaped groove.

[0014] Furthermore, a smooth layer is provided on the arc-shaped sliding plate.

[0015] Furthermore, it also includes a protective housing, and the electromagnetic coil and the tube body are arranged inside the protective housing.

[0016] The technical effects achieved by this utility model are as follows:

[0017] When the electromagnetic coil is energized, the generated magnetic force repels the magnetic surface on the arc-shaped plate, causing the arc-shaped plate to move. Since the arc-shaped sliding plate is restricted by the spring inside the arc-shaped groove, it will move along with the movement of the arc-shaped plate, thereby changing the inner diameter of the tube body. By adjusting the magnitude and direction of the current of the electromagnetic coil, the magnitude and direction of the magnetic force can be controlled, and thus precise adjustment of the aperture can be achieved. When the electromagnetic coil is de-energized, the magnetic force disappears, and the arc-shaped sliding plate returns to its initial position under the action of the spring, and the inner diameter of the tube body also returns to its original state. Description of the Drawings

[0018] Figure 1 is the schematic structural diagram of the whole utility model;

[0019] Figure 2 is the front view of the utility model;

[0020] Figure 3 is the exploded view of the arc-shaped plate of the present utility model;

[0021] Figure 4 is the top view of the arc-shaped plate of the present utility model.

[0022] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0023] 1. Tube body; 2. Electromagnetic coil; 3. Arc-shaped plate; 4. Magnetic surface; 5. Arc-shaped groove; 6. Spring; 7. Arc-shaped sliding plate. Specific embodiments

[0024] In order to make the purpose and advantages of the present utility model clearer, the following specifically describes the present utility model in combination with embodiments. It should be understood that the following text only describes one or several specific implementation manners of the present utility model, and does not strictly limit the protection scope of the specific requests of the present utility model.

[0025] As Figures 1-4 shown, the technical solution adopted by the present utility model is specifically as follows: An adjustable-aperture air-conditioning capillary tube includes a tube body 1, and an electromagnetic coil 2 is sleeved outside the tube body 1;

[0026] The tube body 1 includes four arc-shaped plates 3, and magnetic surfaces 4 that repel the magnetic force generated by the electromagnetic coil 2 are provided on the four arc-shaped plates 3. An arc-shaped groove 5 is opened between every two arc-shaped plates 3, a spring 6 is arranged inside each arc-shaped groove 5, and an arc-shaped sliding plate 7 that slides inside the arc-shaped groove 5 is arranged between every two springs 6.

[0027] Its working principle is as follows: When the electromagnetic coil 2 is energized, the generated magnetic force repels the magnetic surface 4 on the arc-shaped plate 3, causing the arc-shaped plate 3 to move. Since the arc-shaped sliding plate 7 is restricted by the spring 6 in the arc-shaped groove 5, it will move along with the movement of the arc-shaped plate 3, thereby changing the inner diameter of the tube body 1. By adjusting the magnitude and direction of the current of the electromagnetic coil 2, the magnitude and direction of the magnetic force can be controlled, and thus the precise adjustment of the aperture can be achieved. When the electromagnetic coil 2 is powered off, the magnetic force disappears, and the arc-shaped sliding plate 7 returns to the initial position under the action of the spring 6, and the inner diameter of the tube body 1 also returns to the original state.

[0028] Among them, the electromagnetic coil 2 is usually made by winding enameled wire or other insulated wires on a hollow or magnetic core. Its structure mainly includes a wire, a winding skeleton, and possibly a magnetic core. The wire generally uses a metal material with good conductivity, such as copper, and the surface is covered with insulating paint to prevent short circuits. The winding skeleton is used to support and fix the wire so that it can be wound according to a specific number of turns and shape. The magnetic core can be made of magnetic materials such as iron and silicon steel, which can enhance the magnetic field intensity.

[0029] The working principle is based on the electromagnetic induction phenomenon. When an electric current passes through a wire, a magnetic field is generated around it. The intensity of the magnetic field is proportional to the magnitude of the current and also to the number of turns of the coil. By controlling the magnitude and direction of the input current, the intensity and polarity of the magnetic field generated by the electromagnetic coil 2 can be changed.

[0030] In this adjustable-aperture air-conditioning capillary tube, when an electric current is passed through the electromagnetic coil 2, the generated magnetic field interacts with the magnetic surface 4 on the arc-shaped plate 3. Since the magnetic surface 4 repels the magnetic force generated by the electromagnetic coil 2, under the action of the magnetic force, the arc-shaped plate 3 will displace, compressing or stretching the spring 6 and the arc-shaped sliding plate 7 therebetween, thereby changing the aperture size of the tube body 1.

[0031] Meanwhile, it also includes an electromagnetic controller, which includes a power supply, a current regulator, and a controller. The electromagnetic controller can precisely adjust the magnitude and direction of the current in the electromagnetic coil 2 to achieve precise control of the aperture.

[0032] Among them, the model of the current regulator can be an LM317 current regulator, a TL431 current regulator, etc.

[0033] The structure of the current regulator generally includes the following main parts:

[0034] 1. Error amplifier: used to compare the set current reference value with the actually detected current value and generate an error signal.

[0035] 2. Comparator: compares the error signal output by the error amplifier with an internal reference voltage.

[0036] 3. Power output stage: controls the magnitude of the output current according to the output result of the comparator.

[0037] 4. Current detection circuit: used to detect the actual current flowing through the load and convert it into a corresponding voltage signal to feedback to the error amplifier.

[0038] Working principle:

[0039] First, a desired current value is set. The current detection circuit will monitor the current in the load in real time and convert it into a voltage signal. This voltage signal and the set reference voltage are input into the error amplifier together. The error amplifier calculates the difference (error) between the two and amplifies it. The amplified error signal is input into the comparator and compared with the reference voltage. The output of the comparator controls the conduction degree of the power output stage, thereby adjusting the output current so that the actual current tends to the set current value, achieving stable regulation of the current.

[0040] The current regulator belongs to the prior art and will not be elaborated here too much.

[0041] The controller is a microprocessor or a single-chip microcomputer. It can adjust the current according to preset parameters or external signals (such as temperature sensors, pressure sensors, etc.) to achieve the function of automatically adjusting the aperture. This belongs to the prior art and will not be elaborated here.

[0042] To ensure that the mechanical structure of the pipe body 1 (arc plate 3, arc groove 5 and spring 6) can withstand the electromagnetic force and remain stable, a reinforcing layer is provided on the arc plate 3. A reinforcing layer is added inside the arc plate 3 or a material with higher strength is used to enhance its structural strength, ensuring that they can withstand the electromagnetic force and remain stable.

[0043] Spring 6: According to the magnitude of the electromagnetic force and the requirements for adjusting the aperture, select a suitable type of spring 6, such as a compression spring 6, a tension spring 6 or a torsion spring 6. At the same time, determine parameters such as the stiffness, free length and working length of the spring 6.

[0044] Considering the fatigue life and stability of the spring 6 during long-term operation, select materials and manufacturing processes with high durability. At the same time, the pre-tightening force of the spring 6 can be designed to ensure its stable performance during operation.

[0045] Manufacture of the pipe body 1: Adopt advanced manufacturing processes, such as precision casting, numerical control machining or laser cutting, etc., to ensure the accuracy and surface quality of the arc plate 3 and the arc groove 5. This helps to improve the stability and sealing performance of the structure.

[0046] A gasket is designed between the arc-shaped sliding plate 7 and the arc groove 5. The gasket has good sealing performance and corrosion resistance to ensure effective prevention of leakage in various working environments.

[0047] To ensure the smooth sliding of the arc-shaped sliding plate 7 in the arc groove 5, a smooth layer is provided on the arc-shaped sliding plate 7. The sliding plate can be made of a material with a low coefficient of friction through the smooth layer. The material of the smooth layer is polytetrafluoroethylene (PTFE), etc.

[0048] It also includes a protective housing (not marked in the figure). The electromagnetic coil 2 and the pipe body 1 are arranged inside the protective housing. Through the protective housing, the electromagnetic coil 2 and the pipe body 1 can be blocked from contacting the outside world, preventing the occurrence of electric leakage and corrosion.

[0049] The protective housing is made of insulating material and can achieve the effect of insulation.

[0050] The working principle of this utility model is as follows: When the electromagnetic coil 2 is energized, the generated magnetic force repels the magnetic surface 4 on the arc-shaped plate 3, causing the arc-shaped plate 3 to move. Since the arc-shaped sliding plate 7 is restricted by the spring 6 in the arc-shaped groove 5, it will move along with the movement of the arc-shaped plate 3, thereby changing the inner diameter of the tube body 1. By adjusting the magnitude and direction of the current in the electromagnetic coil 2, the magnitude and direction of the magnetic force can be controlled, and thus the precise adjustment of the aperture can be achieved. When the electromagnetic coil 2 is de-energized, the magnetic force disappears, and the arc-shaped sliding plate 7 returns to its initial position under the action of the spring 6, and the inner diameter of the tube body 1 also returns to its original state.

[0051] The above description is only the preferred embodiment of this utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of this utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of this utility model. The structures, devices, and operation methods not specifically described and explained in this utility model are implemented according to the conventional means in this field without special description and limitation.

Claims

1. An adjustable aperture air conditioning capillary tube, comprising a tube body (1), characterized in that: The outer side of the tube body (1) is sleeved with a circle of electromagnetic coil (2); The tube body (1) comprises four arc-shaped plates (3), on which magnetic surfaces (4) that repel the magnetic force generated by the electromagnetic coil (2) are arranged, an arc-shaped groove (5) is provided between every two of the arc-shaped plates (3), a spring (6) is provided inside each of the arc-shaped grooves (5), and an arc-shaped sliding plate (7) that slides inside the arc-shaped groove (5) is provided between every two of the springs (6).

2. The adjustable aperture air conditioning capillary according to claim 1, characterized in that: It also includes an electromagnetic controller, which includes a power supply, a current regulator and a controller. The power supply provides current to the current regulator and the controller. The current regulator is electrically connected to the controller, and the controller is electrically connected to the electromagnetic coil (2).

3. The adjustable aperture air conditioning capillary according to claim 1, characterized in that: A reinforcement layer is provided on the arc-shaped plate (3).

4. The adjustable aperture air conditioning capillary tube according to claim 1, characterized in that: A sealing gasket is designed between the arc-shaped sliding plate (7) and the arc-shaped groove (5).

5. The adjustable aperture air conditioning capillary tube according to claim 1, characterized in that: A smooth layer is provided on the arc-shaped sliding plate (7).

6. The adjustable aperture air conditioning capillary tube according to claim 1, characterized in that: It also comprises a protective shell, wherein the electromagnetic coil (2) and the tube body (1) are arranged inside the protective shell.

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