CN218582260U

CN218582260U - Novel electronic expansion valve

Info

Publication number: CN218582260U
Application number: CN202223220664.8U
Authority: CN
Inventors: 吴一清
Original assignee: Zhejiang Minte Auto Air Conditioner Co ltd
Current assignee: Zhejiang Minte Auto Air Conditioner Co ltd
Priority date: 2022-12-02
Filing date: 2022-12-02
Publication date: 2023-03-07
Anticipated expiration: 2032-12-02

Abstract

The utility model discloses a novel electronic expansion valve, which comprises a valve body, case and control part, be equipped with the spread groove in the valve body, be equipped with the connecting block on the case, be equipped with the screw thread on the connecting block, the connecting block is pegged graft to the spread groove in, and with spread groove threaded connection, the upper end of spread groove is equipped with the catching groove of echelonment, still be equipped with the knot piece on the case, knot piece and catching groove gomphosis, and the knot piece is filled the catching groove completely, the embedded bottom seal circle that is equipped with of catching groove, the bottom seal circle is used for increasing the leakproofness between case and the valve body, the upper end of knot piece is equipped with the upper seal circle, the lower extreme contact of upper seal circle and control part, the upper seal circle is used for increasing the leakproofness between control part and the case, the control part is used for inside switching on and the shutoff of control case, the utility model discloses rational in infrastructure, carry out the shutoff through multilayer structure in the upper end of spread groove, make the gas tightness of spread groove obtain guaranteeing to make the quality of product obtain guaranteeing.

Description

Novel electronic expansion valve

Technical Field

The utility model relates to a solenoid valve field, in particular to novel electronic expansion valve.

Background

Solenoid valves are industrial devices that are controlled electromagnetically, and are the basic elements of automation for controlling fluids. In the solenoid valve and the like, the sealing performance of the product is the most important index of the product. How to increase the sealing performance of the solenoid valve and enable the solenoid valve to have longer service life is a problem to be solved at the present stage. In view of the above problems, a solution is proposed as follows.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a novel electronic expansion valve has the friction loss that reduces between the spare part to increase the life's of product advantage.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a novel electronic expansion valve, includes valve body, case and control part, be equipped with the spread groove in the valve body, be equipped with the connecting block on the case, be equipped with the screw thread on the connecting block, the connecting block peg graft to the spread groove in, and with spread groove threaded connection, the upper end of spread groove is equipped with the catching groove of echelonment, still be equipped with the knot piece on the case, detain piece and catching groove gomphosis, just the knot piece is filled the catching groove completely, the catching groove is embedded to be equipped with the lower seal circle, the lower seal circle is used for increasing the leakproofness between case and the valve body, the upper end of detaining the piece is equipped with the upper seal circle, the lower extreme contact of upper seal circle and control part, the upper seal circle is used for increasing the leakproofness between control part and the case, the control part is used for inside switching on of control case and shutoff.

Preferably, the valve body is provided with an inlet channel and an outlet channel, one end of each of the inlet channel and the outlet channel is communicated with the side wall of the connecting groove, the valve core is provided with a control channel, an inlet and an outlet, the inlet and the outlet are communicated with the side wall of the control channel, one end of the inlet is connected with the inlet channel, one end of the outlet is connected with the outlet channel, the control part comprises a valve needle, and one end of the valve needle is inserted into the control channel and is connected with the control channel in a sliding mode.

Preferably, the control part further comprises a coil assembly and a rotor, the lower end face of the coil assembly is provided with a rotary groove, the rotor is located in the rotary groove and is in sliding connection with the rotary groove, one end of the valve needle is fixedly connected with the rotor, and the coil is used for driving the rotor and the valve needle to move so that the valve needle can control the conduction condition of the valve element.

Preferably, a spring is arranged on the rotor, one end of the spring is fixedly connected with the coil assembly, and the spring is used for driving the rotor and the valve needle to reset.

The utility model has the advantages that: at the junction of case and valve body, through lower sealing washer, knot piece and the cooperation of last sealing washer three layer construction, realize sealed between valve body and the case to the at utmost, and can be complementary between the three layer construction to make the sealing performance of product can maintain more permanent time.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is a schematic sectional view of the embodiment.

Reference numerals are as follows: 1. a valve body; 2. a valve core; 3. connecting blocks; 4. buckling blocks; 5. a lower seal ring; 6. an upper sealing ring; 7. an inlet channel; 8. an outlet channel; 9. a control channel; 10. an access port; 11. an output port; 12. a valve needle; 13. a coil assembly; 14. a rotor; 15. a spring.

Detailed Description

The following is only the preferred embodiment of the present invention, the protection scope is not limited to this embodiment, and all technical solutions belonging to the idea of the present invention should belong to the protection scope of the present invention. In which like parts are designated by like reference numerals. It should be noted that as used in the following description, the terms "front," "back," "left," "right," "upper," and "lower" refer to directions in the drawings, and the terms "bottom" and "top," "inner," and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

As shown in fig. 1 to 2, a novel electronic expansion valve includes a valve body 1, a valve core 2 and a control part. One end of the valve core 2 is inserted into the valve body 1, the valve body 1 is provided with a connecting groove, an inlet channel 7 and an outlet channel 8, one ends of the inlet channel 7 and the outlet channel 8 are communicated with the side wall of the connecting groove, and in a communicated state, fluid enters from the inlet channel 7, passes through the connecting groove and flows out from the outlet channel 8.

The lower end of the valve core 2 can be inserted into the connecting groove to plug the upper end of the connecting groove, so that fluid can not flow out from the upper end of the connecting groove. The valve core 2 is provided with a control channel 9, an inlet 10 and an outlet 11, and the inlet 10 and the outlet 11 are communicated with the side wall of the control channel 9. One end of the inlet 10 is connected to the inlet channel 7, and one end of the outlet 11 is connected to the outlet channel 8. Fluid enters from the inlet channel 7 and passes through the inlet 10, the control channel 9 and the outlet 11 in that order and finally exits from the outlet channel 8. The electronic expansion valve can perform fine control on the flow.

Be equipped with connecting block 3 on the case 2, be equipped with the screw thread on the connecting block 3, case 2 is fixed through screw thread and spread groove. In order to prevent fluid from flowing out from the connection position of the valve core 2 and the valve body 1, the upper end of the connection groove is provided with a step-shaped buckling groove, the valve core 2 is further provided with a buckling block 4, the buckling block 4 is embedded with the buckling groove, the buckling groove is completely filled by the buckling block 4, and leakage can be effectively prevented. The lower sealing ring 5 is embedded in the buckling groove, the lower end face of the buckling block 4 is abutted to the lower sealing ring 5, and the sealing performance between the valve core 2 and the valve body 1 is further improved.

An upper sealing ring 6 is arranged on the upper end face of the buckling block 4, the upper sealing ring 6 is in contact with the lower end of the control part, and the upper sealing ring 6 is used for increasing the sealing performance between the control part and the valve core 2.

The control part comprises a valve needle 12, a coil assembly 13 and a rotor 14, wherein a rotary groove is formed in the lower end face of the coil assembly 13, and the rotor 14 is located in the rotary groove and is in sliding connection with the rotary groove. One end of the valve needle 12 is fixedly connected with the rotor 14, and the other end of the valve needle 12 is inserted in the control channel 9 and is connected with the control channel 9 in a sliding manner. When energized, the coil assembly 13 may drive the rotor 14 to move, such that the rotor 14 moves the valve needle 12. The valve needle 12 can move downwards to completely fill the control channel 9, so that fluid cannot move into the valve core 2 through the access port 10, and the valve body 1 is in a blocking state; when the valve needle 12 moves upward, it is away from the position of the inlet 10 and the outlet 11, so that fluid communication is possible.

The rotor 14 is provided with a spring 15, one end of the spring 15 is fixedly connected with the coil assembly 13, and the spring 15 can pull or push the valve needle 12 upwards when the electromagnetic force of the coil assembly 13 is not applied, so that the valve needle 12 is in the initial position. The initial position can be the position that valve body 1 switched on, also can be the position of valve body 1 shutoff, can make different models according to the use scene.

The above-mentioned embodiments further explain in detail the technical problems, technical solutions and advantages solved by the present invention, and it should be understood that the above only is a specific embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a novel electronic expansion valve, includes valve body (1), case (2) and control part, its characterized in that, be equipped with the spread groove in valve body (1), be equipped with connecting block (3) on case (2), be equipped with the screw thread on connecting block (3), connecting block (3) are pegged graft to the spread groove in, and with spread groove threaded connection, the upper end of spread groove is equipped with the catching groove of echelonment, still be equipped with on case (2) and detain piece (4), detain piece (4) and catching groove gomphosis, just detain piece (4) and fill the catching groove completely, the catching groove is embedded to be equipped with lower seal circle (5), lower seal circle (5) are used for increasing the leakproofness between case (2) and valve body (1), the upper end of detaining piece (4) is equipped with upper seal circle (6), upper seal circle (6) and the lower extreme contact of control part, upper seal circle (6) are used for increasing the leakproofness between control part and case (2), the control part is used for controlling the inside and switches on and the shutoff of case (2).

2. The novel electronic expansion valve according to claim 1, wherein the valve body (1) is provided with an inlet channel (7) and an outlet channel (8), one end of each of the inlet channel (7) and the outlet channel (8) is communicated with a side wall of the connecting groove, the valve core (2) is provided with a control channel (9), an inlet (10) and an outlet (11), the inlet (10) and the outlet (11) are communicated with a side wall of the control channel (9), one end of the inlet (10) is connected with the inlet channel (7), one end of the outlet (11) is connected with the outlet channel (8), the control portion comprises a valve needle (12), and one end of the valve needle (12) is inserted into the control channel (9) and is slidably connected with the control channel (9).

3. The novel electronic expansion valve according to claim 2, wherein the control portion further comprises a coil assembly (13) and a rotor (14), the lower end face of the coil assembly (13) is provided with a rotary groove, the rotor (14) is located in the rotary groove and is slidably connected with the rotary groove, one end of the valve needle (12) is fixedly connected with the rotor (14), and the coil is used for driving the rotor (14) and the valve needle (12) to move, so that the valve needle (12) controls the conduction condition of the valve element (2).

4. A new type electronic expansion valve according to claim 3, characterized in that the rotor (14) is provided with a spring (15), one end of the spring (15) is fixedly connected with the coil assembly (13), and the spring (15) is used for driving the rotor (14) and the valve needle (12) to return.