Novel electric control gas flow variable discharge valve

Abstract

The utility model provides a novel electric control gas flow variable discharge valve which comprises an electric control valve body, a corrugated pipe cap installed at the top end of the electric control valve body and a corrugated pipe installed in the center of the inside of the corrugated pipe cap. The valve needle is mounted in the center of the interior of the electric control valve body in a penetrating manner; and the axial gas drainage channel is formed in the electric control valve body. The novel electrically-controlled gas flow variable discharge valve can solve the problem that air-conditioning compressors of automobiles, ships and the like are not stable in air flow control and overflow balancing systems due to lack of electrically-controlled gas flow variable discharge valves of air conditioners of the automobiles, the ships and the like in the existing market, so that the air-conditioning compressors of the automobiles, the ships and the like are not stable in air flow control and overflow balancing systems. Excessive overflow gas generated by abrasion of internal moving parts and sealing parts in the running process cannot overflow and be discharged in time, so that the control pressure in a spindle cavity of a compressor is too high, and the problems that air conditioners of automobiles, ships and the like are poor in refrigeration effect or do not refrigerate are solved.

Description

Technical Field

[0001] This utility model relates to the field of variable discharge valve technology, and more specifically, to a novel electrically controlled variable gas flow discharge valve. Background Technology

[0002] The existing electronically controlled gas flow variable discharge valve used in air conditioning compressors in refrigeration systems of automobiles, ships, and aviation uses an electromagnetic coil to generate magnetic force through voltage and current to drive the valve core or valve needle to move axially at different distances. This allows for precise throttling control of the airflow to generate different pilot servo airflows, thereby accurately and smoothly controlling the compressor's optimal output displacement and achieving the cooling effect under different temperature conditions set in the air conditioning system.

[0003] Existing air conditioning electronically controlled gas flow variable discharge valves for automobiles and ships lack a system for controlling airflow and stabilizing overflow. This results in excessive overflow gas generated by wear on internal moving parts and sealing components of the air conditioning compressor during operation, which cannot be discharged in time, leading to poor or no cooling effect. This utility model improves and solves this problem, thereby extending the service life of the compressor and reducing fuel consumption in automobile and ship engines.

[0004] Due to issues with the precision of existing domestic processing equipment, raw materials for processed parts, processing sites, processing techniques, and working environments, the tolerance range of processed parts is often too large and they are often substandard. This results in excessive clearance between the cylinder and piston of automotive and marine air conditioning compressors, leading to excessive overflow of compressed gas between the cylinder bore and piston during operation. This causes the compressor's variable displacement throttle orifice to fail to discharge gas in time, resulting in excessively high control pressure within the compressor's main shaft cavity. Consequently, the output displacement of the air conditioning compressor is reduced, leading to poor or no cooling effect. In severe cases, the overflow may even necessitate the replacement of the air conditioning compressor. Utility Model Content

[0005] The present invention aims to solve the technical problems mentioned in the background art and provide a new type of electronically controlled gas flow variable discharge valve. This is to improve and solve the problem that existing electronically controlled gas flow variable discharge valves for automobiles, ships, etc., on the market lack a system for controlling stable airflow and balancing overflow. As a result, excessive overflow gas generated by internal moving parts and sealing parts of the air conditioning compressor during operation cannot be discharged in time, leading to excessively high control pressure in the compressor main shaft cavity and causing poor or no cooling effect of the air conditioning in automobiles, ships, etc.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a novel electrically controlled gas flow variable discharge valve, comprising: an electrically controlled valve body, a bellows cap installed on the top of the electrically controlled valve body, and the variable discharge valve further comprising:

[0007] A bellows, wherein the bellows is installed in the center of the inside of a bellows cap;

[0008] A valve needle, which is installed through the center of the interior of the electrically controlled valve body;

[0009] An axial gas flow channel is provided inside the body of the electrically controlled valve. The axial gas flow channel is configured as a single hole, a symmetrical double hole, or multiple holes.

[0010] A bidirectional positive magnetic static iron core is installed at the center of the lower end inside the body of the electric control valve.

[0011] A magnetic force generating component is disposed at the lower end of a bidirectional positive magnetic static iron core;

[0012] An axial gas drainage channel valve control component is installed at the top of an axial gas drainage channel, and the axial gas drainage channel valve control component includes a control valve.

[0013] A further preferred embodiment: an electric control valve housing is installed at the bottom of the electric control valve body, and a valve needle moving magnetic core is installed at the bottom of the valve needle, with the valve needle moving magnetic core installed inside the lower end of the electric control valve housing.

[0014] A further preferred embodiment: a high-pressure air inlet and a control pressure air outlet are respectively provided at the upper end and the center of the upper middle end of the valve needle.

[0015] A further preferred embodiment: the bellows is a vacuum stabilizing spring, and a low-pressure vent hole is provided at the upper end of the bellows cap.

[0016] A further preferred embodiment: the top and bottom ends of the bidirectional guiding magnetic static iron core are respectively provided with guiding position one and guiding position two, and the magnetic force generating component is a coil.

[0017] A further preferred embodiment: A bellows support and a return spring for the control valve component are installed between the bottom end of the bellows and the top end of the axial gas drainage channel valve control component. When the valve needle moves, the axial gas drainage channel valve control component opens; when the valve needle returns, the axial gas drainage channel valve control component closes.

[0018] Beneficial effects:

[0019] 1. By adopting an electromagnetic drive method, it has a fast response speed and high control precision, making it suitable for application scenarios that require rapid response and precise adjustment;

[0020] 2. The stability and durability of the air conditioning system are improved by using a multi-stage stabilizing spring system (which controls the valve needle to open when pushing the axial gas diversion channel valve component during operation and close when returning to its original position) and a bidirectional positive magnetic static iron core design.

[0021] 3. By adding a gas diversion system, gas diversion holes are machined inside the electronically controlled valve and gas diversion valves are added to compensate for the problem that excessive overflow gas generated by the wear of the original exhaust throttle hole during the operation of the air conditioning compressor cannot be discharged in time. It quickly and automatically diverts the gas, reducing the control pressure in the air conditioning main shaft cavity. The axial gas diversion channel supports single hole, symmetrical double hole or multi-hole configuration, and the gas flow rate can be flexibly adjusted according to actual application needs, making it widely applicable.

[0022] 4. In summary, this novel electrically controlled gas flow variable discharge valve, by incorporating an axial gas flow channel, valve control components, bellows support, and a return spring for the control valve components, integrates all components into a compact structure, saving space and facilitating installation and maintenance. It achieves precise control of gas flow, solving the problem of poor or no cooling performance in existing automotive and marine air conditioning electrically controlled gas flow variable discharge valves on the market, which lack a control system for airflow and overflow balancing. This is because the excessive overflow gas generated during operation due to wear of internal moving and sealing components in the compressor cannot be discharged in time, leading to excessively high control pressure within the compressor's main shaft cavity. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the control valve of this utility model when it is in the closed state.

[0024] Figure 2 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0025] Figure 3 This is a schematic diagram of the control valve of this utility model when it is in the open (working) state.

[0026] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point B.

[0027] Figure 5 This is a schematic diagram of the exploded structure of the upper part of this utility model.

[0028] Figure 6 This is a schematic diagram of the exploded structure of the lower half of this utility model.

[0029] Figure 1-6In the middle: 1. Valve needle; 2. Axial gas flow channel; 3. Axial gas flow channel valve control component; 4. Solenoid valve body; 5. Bidirectional positive magnetic static iron core; 6. Solenoid valve housing; 7. Valve needle moving magnetic moving iron core; 8. High pressure air inlet; 9. Control pressure air outlet; 10. Magnetic force generating component; 11. Low pressure vent; 12. Bellows; 13. Bellows cap; 14. Bellows support and control valve component return spring. Detailed Implementation

[0030] The following will refer to the appendix in the embodiments of this utility model. Figures 1-6 The technical solutions in the embodiments of this utility model will be clearly and completely described.

[0031] Please see Figure 1-6 In this embodiment of the present invention, a novel electrically controlled gas flow variable discharge valve includes: an electrically controlled valve body 4, which serves as the core part of the entire variable discharge valve and contains multiple key components; a bellows cap 13, installed on the top of the electrically controlled valve body 4, used to protect the internal components and used in conjunction with the bellows 12; the variable discharge valve also includes:

[0032] Bellows 12 is installed in the center of the bellows cap 13. It serves to stabilize and buffer the valve needle 1. It is also called a vacuum stabilizing spring, which makes the valve 1 open and close more smoothly.

[0033] Valve needle 1 is installed through the center of the interior of the electric control valve body 4 and is responsible for directly controlling the gas flow.

[0034] Axial gas flow channel 2 is located inside the body of the solenoid valve 4. The axial gas flow channel 2 can be configured as a single hole, a symmetrical double hole, or multiple holes to adapt to different flow requirements.

[0035] The bidirectional guiding magnetic static iron core 5 is installed in the center of the lower end inside the electric control valve body 4, and has two guiding positions (guiding position one and guiding position two) to ensure the accuracy and stability of the valve needle 1 when it moves.

[0036] The magnetic force generating component 10 is located at the lower end of the bidirectional positive magnetic stationary iron core 5. It generates a magnetic field through current and drives the valve needle to move the magnetic moving iron core 7 up and down.

[0037] The axial gas flow channel valve control component 3 is installed at the top of the axial gas flow channel 2. The axial gas flow channel valve control component 3 includes a control valve for finely adjusting the gas flow rate.

[0038] In this embodiment of the present invention, an electric control valve housing 6 is installed at the bottom of the electric control valve body 4 to accommodate and protect the internal components. A valve needle moving magnetic core 7 is installed at the bottom of the valve needle 1. The valve needle moving magnetic core 7 is installed at the lower end of the inside of the electric control valve housing 6 and moves up and down under the influence of the magnetic force generating component 10, thereby driving the valve needle 1 to move.

[0039] In this embodiment of the present invention, a high-pressure air inlet 8 and a control pressure air outlet 9 are respectively provided at the upper end and the middle of the upper end of the valve needle 1 for introducing and discharging gas.

[0040] In this embodiment of the utility model, the bellows 12 is a vacuum stabilizing spring, and the upper end of the bellows cap 13 is provided with a low-pressure vent hole 11 for releasing excess gas and maintaining internal pressure balance.

[0041] In this embodiment of the utility model, the top and bottom ends of the bidirectional guiding magnetic static iron core 5 are respectively provided with guiding position one and guiding position two, and the magnetic force generating component 10 is a coil.

[0042] In this embodiment of the utility model, a bellows support and control valve component return spring 14 is installed between the bottom end of the bellows 12 and the top end of the axial gas diversion channel valve control component 3 to assist the bellows 12, control valve and valve needle 1 in resetting action. When the valve needle 1 moves, the axial gas diversion channel valve control component 3 opens, and when the valve needle 1 returns, the axial gas diversion channel valve control component 3 closes.

[0043] Working principle: When current passes through the magnetic force generating component 10 (coil), the generated magnetic field attracts the valve needle to move upward, causing the moving iron core 7 to rise, thereby opening and adjusting the control valve in the axial gas flow channel 2, allowing gas flow. By changing the current magnitude, the magnetic field strength generated by the magnetic force generating component 10 can be adjusted, thereby controlling the position of the valve needle 1 and achieving precise control of gas flow. When the current is interrupted or reduced, the bellows support and control valve component return spring 14 will pull the valve needle 1 and related components back to the initial position, closing the gas channel and ensuring system safety. High-pressure gas is introduced through the high-pressure inlet port 8, and after being adjusted by the valve needle 1, it is output through the control pressure outlet port 9. The low-pressure vent port 11 on the bellows cap 13 is used to release excess gas and maintain stable internal system pressure. In the improved automotive and marine air conditioning electronic control valve, the gas flow valve operates completely synchronously with the electronic control valve needle 1. Figure 3 and Figure 4 It is opened when the electrically controlled valve is running. Figure 1 and Figure 2It closes when the electronically controlled valve is not in operation. The working principle is that the needle of the electronically controlled valve makes precise axial movement according to the current displacement requirements of the air conditioning compressor in automobiles, ships, etc., to achieve the optimal displacement required by the air conditioning system. When the airflow in the cylinder bore and piston of the air conditioning compressor in automobiles, ships, etc. exceeds the control pressure in the compressor main shaft cavity, the excess airflow will flow through the internal drainage hole of the improved electronically controlled valve to overflow to the low-pressure area of ​​the compressor, automatically balancing the control pressure in the main shaft cavity, stabilizing the optimal displacement required by the air conditioning system in automobiles, ships, etc., and achieving the best cooling state of the air conditioning system.

Claims

1. A novel electronically controlled gas flow variable displacement valve, comprising: The electric control valve body (4) is characterized in that: the top end of the electric control valve body (4) is provided with a bellows cap (13), and the variable displacement valve further comprises: A bellows (12) is arranged in the inner center of the bellows cap (13); A valve needle (1) is arranged in the inner center of the electric control valve body (4); An axial gas flow channel (2) is arranged in the inner center of the electric control valve body (4), and the axial gas flow channel (2) is provided as a single hole or a symmetrical double hole or a multi-hole; A bidirectional guiding magnetic force static iron core (5) is arranged in the inner lower end center of the electric control valve body (4); A magnetic force generating component (10) is arranged at the lower end of the bidirectional guiding magnetic force static iron core (5); An axial gas flow channel valve control component (3) is arranged at the top end of the axial gas flow channel (2), and the axial gas flow channel valve control component (3) comprises a control valve.

2. A new type of electrically controlled gas flow variable exhaust valve according to claim 1, characterized in that: The bottom end of the electric control valve body (4) is provided with an electric control valve shell (6), and the bottom end of the valve needle (1) is provided with a valve needle movement magnetic force moving iron core (7) arranged in the inner lower end of the electric control valve shell (6).

3. A new type of electrically controlled gas flow variable exhaust valve according to claim 1, characterized in that: The upper end and the middle upper end of the valve needle (1) are respectively provided with a high-pressure inlet hole (8) and a control pressure outlet hole (9).

4. A new type of electronically controlled gas flow variable exhaust valve according to claim 1, characterized in that: The bellows (12) is a vacuum stable spring, and the top end of the bellows cap (13) is provided with a low-pressure exhaust hole (11).

5. A new type of electronically controlled gas flow variable exhaust valve according to claim 1, characterized in that: The top end and the lower end of the bidirectional guiding magnetic force static iron core (5) are respectively provided with a guiding position one and a guiding position two, and the magnetic force generating component (10) is a coil.

6. A new type of electronically controlled gas flow variable exhaust valve according to claim 1, characterized in that: The bottom end of the bellows (12) and the top end of the axial gas flow channel valve control component (3) are provided with a bellows support and control valve component return spring (14), the valve needle (1) operates the axial gas flow channel valve control component (3) to open, and the valve needle (1) returns to the axial gas flow channel valve control component (3) to close.

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