CN212718015U

CN212718015U - Electromagnetic valve

Info

Publication number: CN212718015U
Application number: CN202021586380.9U
Authority: CN
Inventors: 舒虎刚; 郭国武
Original assignee: Longquan Huifeng Import And Export Co ltd
Current assignee: Longquan Huifeng Import And Export Co ltd
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2021-03-16
Anticipated expiration: 2030-08-04

Abstract

The utility model provides a solenoid valve, including the valve body and valve gap subassembly and the coil assembly installed on the valve body, be equipped with inlet channel, drain passage and the valve pocket that communicates with inlet channel on the valve body, be equipped with the main valve mouth that communicates with drain passage on the valve pocket, the valve gap subassembly includes the valve gap and the relative valve core that the valve gap moved axially, the bottom of valve gap is located in the valve pocket; the coil assembly comprises a magnetic conduction frame, a coil framework, a coil and a plastic package layer coated outside the coil, wherein the magnetic conduction frame is fixed outside the plastic package layer; the valve cover assembly is fixed through the magnetic conduction frame, the magnetic conduction frame is fixedly connected with the valve body through screws, connecting threads between the valve cover assembly and the valve body are omitted, and the problem that burrs are possibly brought into the valve when the valve cover assembly is installed is solved.

Description

Electromagnetic valve

Technical Field

The utility model relates to a fluid control field, concretely relates to solenoid valve in air conditioner technical field.

Background

The utility model discloses CN207598940U utility model provides an electromagnetic valve, including the valve body and install valve gap subassembly, piston part and the electromagnetic drive mechanism on the valve body, be equipped with inlet channel, drain passage on the valve body and with the valve pocket of inlet channel intercommunication, be equipped with the main valve mouth with the drain passage intercommunication on the valve pocket, the valve gap subassembly includes valve gap and relative valve gap axial displacement's case, and the bottom of valve gap is located the valve pocket, and the bottom of valve gap is equipped with and is used for holding piston part's cavity, electromagnetic drive mechanism is through the drive the case motion is closed in order to promote piston part main valve mouth. However, the valve cover assembly is fixed on the valve body through threads, burrs are easily left on the threads in the valve body, and the burrs may be brought into the valve when the valve cover assembly is installed, so that the failure of the electromagnetic valve is caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a solenoid valve may bring the burr into the problem in the valve when solving installation valve gap subassembly.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a solenoid valve comprises a valve body, a valve cover assembly and a coil assembly, wherein the valve cover assembly and the coil assembly are installed on the valve body, a liquid inlet channel, a liquid outlet channel and a valve cavity communicated with the liquid inlet channel are arranged on the valve body, a main valve port communicated with the liquid outlet channel is arranged on the valve cavity, the valve cover assembly comprises a valve cover and a valve core axially moving relative to the valve cover, and the bottom of the valve cover is located in the valve cavity; the coil assembly comprises a magnetic conduction frame, a coil framework, a coil and a plastic package layer coated outside the coil, wherein the magnetic conduction frame is fixed outside the plastic package layer; the valve cover assembly is fixed through the magnetic conduction frame, and the magnetic conduction frame is fixedly connected with the valve body through screws.

Further, the solenoid valve comprises a piston component, the piston component is arranged in a cavity at the bottom of the valve cover or a valve cavity of the valve body, and the coil assembly drives the valve core to move so as to push the piston component to open or close the main valve port.

Further, the valve cavity of the valve body is provided with a first step, the valve cover is provided with a corresponding second step, and the valve cover is limited through the first step.

Furthermore, the end face of the valve cover corresponding to the magnetic conduction frame is higher than or level with the end face of the valve body corresponding to the magnetic conduction frame.

Further, the valve cavity of the valve body is provided with a third step, the valve cover is provided with a corresponding fourth step, and the third step and the fourth step are matched to form an annular groove for placing the sealing ring.

Furthermore, the magnetic conduction frame is U-shaped, and mounting holes for being connected with the valve body screws are formed in the two sides of the bottom of the magnetic conduction frame.

Further, the bottom of the magnetic conduction frame is provided with a positioning convex part, the valve cover assembly is provided with a positioning hole, and the positioning convex part is inserted into the positioning hole.

Furthermore, the positioning convex part at the bottom of the magnetic conduction frame is a convex point formed by stamping.

The beneficial effects of the utility model, because the valve gap subassembly passes through the magnetic conduction frame fixed, cancelled the connecting thread between valve gap subassembly and the valve body, probably bring the burr into the problem in the valve when having solved the installation valve gap subassembly.

Drawings

FIG. 1 is a schematic view of a solenoid valve.

Fig. 2 is an exploded perspective view of the solenoid valve.

Detailed Description

In order to make those skilled in the art understand the technical solution of the present invention better, the following detailed description is made with reference to the accompanying drawings and specific examples, and the terms of upper and lower directions in the description are set forth according to the corresponding directions of the drawings. It is not overrepresented here, as is clearly described in the cited background document.

Referring to fig. 1 and 2, the electromagnetic valve includes a valve body 1, a valve cover assembly 10, a piston member 20 and a coil assembly 30, the valve body 1 includes a liquid inlet passage 2, a liquid outlet passage 3 and a valve cavity 4, the valve cavity 4 is communicated with the liquid inlet passage 2, and a main valve port 5 communicated with the liquid outlet passage 3 is arranged on the bottom wall of the valve cavity 4.

The valve cover assembly 10 comprises a valve cover 11, a valve core 12, a reset spring 13, a sleeve 14, an end socket 15 and a fixed armature 16, wherein an axial through hole is formed in the fixed armature 16, the valve core 12 penetrates through the axial through hole, the axial through hole of the fixed armature 16 comprises a positioning step hole 161, the reset spring 13 is sleeved on the valve core 12, the bottom end of the reset spring 13 abuts against the bottom wall of the positioning step hole 161, and the top end of the reset spring 13 abuts against the step surface of the valve core 12, so that the reset spring 13 is clamped between the bottom wall of the positioning step hole 161 and the step surface of the valve core 12, and a movable gap exists between the step surface of the valve core 12 and the top end of the fixed. The valve cover 11 is fixed with the bottom of the sleeve 14 in a welding mode, the fixed armature 16 is fixed with the bottom of the sleeve 14 in a welding mode, and the seal head 15 is fixed with the top of the sleeve 14 in a welding mode. The valve cover 11 can also be designed as one piece with the fixed armature 16, as in the background art.

The coil assembly 30 comprises a magnetic conduction frame 31, a coil framework 32, a coil 33 and a plastic package layer 34, the magnetic conduction frame 31 and the plastic package layer 34 are subjected to plastic package, the magnetic conduction frame 31 is fixed outside the plastic package layer 34, the coil assembly 30 is arranged on the outer periphery side of the sleeve 14, and at least part of the valve cover component 10 is matched with the valve cavity 4. The magnetic conduction frame 31 is U-shaped, a salient point 311 is punched at the bottom of the magnetic conduction frame, the valve cover 11 is provided with a positioning hole 111, the salient point 311 is inserted into the positioning hole 111, mounting holes 312 are arranged at two sides of the bottom of the magnetic conduction frame 31, and the valve body 1 is correspondingly provided with screw holes which are connected by screws 9. The salient points are matched with the positioning holes, so that the valve cover assembly can be prevented from rotating.

The valve cavity of the valve body 1 is provided with a first step 6, the valve cover 11 is provided with a corresponding second step 112, and the second step 112 is limited by the first step 6; the end face of the valve cover 11 corresponding to the magnetic conduction frame 31 is higher than or level with the corresponding valve body end face 7, and after the magnetic conduction frame 31 is fixed, the valve cover can be pressed tightly to prevent the valve cover assembly from rotating. The valve cavity 4 of the valve body 1 is provided with a third step 8, the valve cover 11 is provided with a corresponding fourth step 113, and the third step 8 and the fourth step 113 are matched to form an annular groove for placing a sealing ring.

The piston part 20 comprises a piston 21 and a spring 22, and is arranged in a cavity at the bottom of the valve cover 11, but can also be arranged in a valve cavity (not shown) of the valve body 1, and the coil assembly 30 moves by driving the valve core 12 to push the piston part 20 to close the main valve opening 5; similarly, a power-on opening scheme may be designed. In this embodiment, the valve element 12 controls the opening and closing of the main valve port 5 by the piston member 20, and is a pilot type solenoid valve mode, and the valve element 12 may directly control the opening and closing of the main valve port 5, that is, a direct type solenoid valve mode. It should be noted that the spring is not an essential part of the piston member, and the solenoid valve can normally operate without the spring.

It should be noted that: the above embodiments are only used for illustrating the present invention and not for limiting the technical solutions described in the present invention, and the expressions such as upper, lower, inner, outer, etc. appearing herein are only for the purpose of more clearly illustrating the technical solutions of the present invention, but not for limiting the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, it will be understood by those skilled in the art that the present invention may be modified and replaced by other embodiments without departing from the spirit and scope of the present invention.

Claims

1. The electromagnetic valve comprises a valve body, a valve cover assembly and a coil assembly, wherein the valve cover assembly and the coil assembly are installed on the valve body, a liquid inlet channel, a liquid outlet channel and a valve cavity communicated with the liquid inlet channel are arranged on the valve body, a main valve port communicated with the liquid outlet channel is arranged on the valve cavity, the valve cover assembly comprises a valve cover and a valve core axially moving relative to the valve cover, and the bottom of the valve cover is located in the valve cavity; the coil assembly includes magnetic conduction frame, coil skeleton, coil and the cladding plastic envelope layer outside the coil, and magnetic conduction frame fixes outside the plastic envelope layer, its characterized in that: the valve cover assembly is fixed through the magnetic conduction frame, and the magnetic conduction frame is fixedly connected with the valve body through screws.

2. The solenoid valve according to claim 1, wherein: the solenoid valve also comprises a piston component, the piston component is arranged in a cavity at the bottom of the valve cover or a valve cavity of the valve body, and the coil assembly drives the valve core to move so as to push the piston component to open or close the main valve port.

3. The solenoid valve according to claim 1, wherein: the valve cavity of the valve body is provided with a first step, the valve cover is provided with a corresponding second step, and the valve cover is limited through the first step.

4. The solenoid valve according to claim 1, wherein: the end face of the valve cover corresponding to the magnetic conduction frame is higher than or level to the corresponding end face of the valve body.

5. The solenoid valve according to claim 1, wherein: the valve cavity of the valve body is provided with a third step, the valve cover is provided with a corresponding fourth step, and the third step and the fourth step are matched to form an annular groove for placing the sealing ring.

6. The solenoid valve according to claim 1, wherein: the magnetic conduction frame is U-shaped, and mounting holes for being connected with the valve body screws are formed in the two sides of the bottom of the magnetic conduction frame.

7. The solenoid valve according to claim 1, wherein: the bottom of the magnetic conduction frame is provided with a convex part, the valve cover assembly is provided with a positioning hole, and the convex part is inserted into the positioning hole.

8. The solenoid valve according to claim 7, wherein: the convex part at the bottom of the magnetic conduction frame is a convex point formed by stamping.