Solenoid valve coil

Abstract

The utility model provides an electromagnetic valve coil which comprises a framework. The coil is wound on the peripheral side of the framework; the first plastic package part is arranged around the coil, the two ends of the first plastic package part are fixedly connected with the two ends of the framework respectively, and the first plastic package part and the framework jointly wrap and seal the coil; the hardware comprises a cylindrical inner hardware which is inserted into the inner side of the framework and an outer hardware which sleeves the first plastic package part and surrounds the first plastic package part; the inner hardware and the outer hardware are riveted and wrap the framework, the coil and the first plastic package piece together; and the second plastic package piece is arranged around the outer hardware piece, the upper end of the second plastic package piece is fixedly connected and sealed with the upper end of the inner hardware piece, and the lower end of the second plastic package piece is fixedly connected and sealed with the lower end of the outer hardware piece. Compared with the prior art, the electromagnetic valve coil is better in waterproof effect and reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of coils, in particular to a solenoid valve coil. Background Art

[0002] With the improvement of living standards, the requirements for food are getting higher and higher, so different cookers are needed to make different foods. For example, in order to accurately control the pressure in the container, solenoid valve assemblies are usually used in electric pressure cookers and rice cookers with more functions. Among them, the solenoid coil is a part of the solenoid valve assembly, which is usually used in conjunction with a permanent magnet valve body and a push rod to accurately and effectively control the pressure in the container.

[0003] However, in the prior art, the processing of electromagnetic coils is usually completed by riveting the coils into hardware and then directly injecting them in one step. Due to long-term use in high temperature and high humidity environments, the plastic sealing of the one-step injection molding may fail and water may enter the coil, causing the coil to short-circuit and burn. The reliability needs to be improved. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a solenoid valve coil with better waterproof effect and better reliability.

[0005] In order to solve the above technical problems, the utility model provides a solenoid valve coil, comprising:

[0006] skeleton;

[0007] A coil, the coil being wound around the outer circumference of the frame;

[0008] A first plastic sealing member, which is disposed around the coil and has two ends fixedly connected to two ends of the frame respectively, and the first plastic sealing member and the frame together wrap and seal the coil;

[0009] Hardware, the hardware includes an inner hardware which is cylindrical and inserted into the inner side of the frame and an outer hardware which is sleeved and arranged around the first plastic sealing part; the inner hardware and the outer hardware are riveted and together wrap the frame, the coil and the first plastic sealing part; and,

[0010] The second plastic sealing component is arranged around the outer hardware, the upper end of the second plastic sealing component is fixedly connected and sealed with the upper end of the inner hardware, and the lower end of the second plastic sealing component is fixedly connected and sealed with the lower end of the outer hardware.

[0011] Preferably, the skeleton includes a cylindrical skeleton body, an annular skeleton upper limit wall extending outward from the upper end of the skeleton body, and an annular skeleton lower limit wall extending outward from the lower end of the skeleton body; the coil is wound around the skeleton body and is completely located between the skeleton upper limit wall and the skeleton lower limit wall.

[0012] Preferably, the first plastic sealing component includes a first plastic sealing component body which is cylindrical and arranged around the coil, a first plastic sealing component upper wall which is bent inwardly and extended from the upper end of the first plastic sealing component body and fixed to the upper limit wall of the frame, and a first plastic sealing component lower wall which is bent inwardly and extended from the lower end of the first plastic sealing component body and fixed to the lower limit wall of the frame; the first plastic sealing component upper wall forms a seal with the upper limit wall of the frame, and the first plastic sealing component lower wall forms a seal with the lower limit wall of the frame.

[0013] Preferably, the inner hardware includes an inner hardware body which is cylindrical and inserted on the inner side of the skeleton body, and an inner hardware upper wall which is annular and bends outward from the upper end of the inner hardware body, and the inner hardware upper wall is pressed against the upper end of the skeleton body and forms a fixed connection with the first plastic sealing component upper wall; the outer hardware includes an outer hardware body which is cylindrical and sleeved on the first plastic sealing component body, and an outer hardware lower wall which bends inward and extends from the lower end of the outer hardware body, and the outer hardware lower wall is attached to the first plastic sealing component lower wall and extends to form a riveted connection with the lower end of the inner hardware.

[0014] Preferably, the second plastic sealing component includes a second plastic sealing component body which is cylindrical and sleeved and fixed on the outer hardware body, and a second plastic sealing component upper wall formed by bending and extending inward from the upper end of the second plastic sealing component body, and the second plastic sealing component upper wall is respectively overlapped on the first plastic sealing component upper wall and the inner hardware upper wall, and is respectively fixedly connected to the first plastic sealing component upper wall and the inner hardware upper wall to form a seal.

[0015] Preferably, a first groove is provided on the upper side of the upper limit wall of the frame, and a first protrusion matching the first groove is provided on the upper wall of the first plastic sealing component, and the first protrusion is received and fixed in the first groove.

[0016] Preferably, a second protrusion is provided on the lower side of the lower limiting wall of the frame, and a second groove matching the second protrusion is provided on the lower wall of the first plastic sealing component, and the second protrusion is received and fixed in the second groove.

[0017] Preferably, the second plastic sealing component, the first plastic sealing component and the hardware are integrally injection molded.

[0018] Preferably, the first plastic sealing component and the frame are integrally injection molded.

[0019] Compared with the prior art, the solenoid valve coil of the utility model is wound around a frame and then integrally injected with the frame to form a first plastic sealing part; the first plastic sealing part and the frame form a first sealing protection structure for the coil, and at the same time, the inner hardware of the hardware is inserted into the inner side of the frame, and the outer hardware of the hardware is sleeved on the outer side of the first plastic sealing part to form a package, and a second plastic sealing part is formed by injection molding with the hardware and the first plastic sealing part at the same time, forming a second sealing protection structure for the coil, that is, the twice embedded injection molding structure of the first plastic sealing part and the second plastic sealing part forms a double sealing protection effect for the coil, which effectively avoids water entering the coil, has a better waterproof effect, and improves reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is described in detail below in conjunction with the accompanying drawings. Through the detailed description made in conjunction with the following drawings, the above and other aspects of the utility model will become clearer and easier to understand.

[0021] In the figure:

[0022] Figure 1 This is a schematic diagram of the structure of the solenoid valve coil of the utility model;

[0023] Figure 2 It is a partial structural cross-sectional schematic diagram of the solenoid valve coil of the utility model. DETAILED DESCRIPTION

[0024] The specific implementation of the present utility model is described in detail below with reference to the accompanying drawings.

[0025] The specific implementation modes / examples described herein are specific implementation modes of the present utility model, which are used to illustrate the concept of the present utility model, are explanatory and exemplary, and should not be interpreted as limiting the implementation modes of the present utility model and the scope of the present utility model. In addition to the examples described herein, those skilled in the art can also adopt other obvious technical solutions based on the contents disclosed in the claims and the specification of this application, and these technical solutions include any obvious replacement and modification of the embodiments described herein, which are within the protection scope of the present utility model.

[0026] The following descriptions of the embodiments refer to the attached drawings to illustrate specific embodiments of the present invention. Directional terms mentioned in the present invention, such as up, down, front, back, left, right, inside, outside, side, etc., are only referenced to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and understand the present invention, but are not used to limit the present invention.

[0027] Please refer to Figure 1-2As shown, the utility model provides a solenoid valve coil 100, including a frame 1, a coil 2, a first plastic sealing component 3, a hardware component 4 and a second plastic sealing component 5.

[0028] The frame 1 is used for supporting, and the coil 2 is wound around the outer circumference of the frame 1 .

[0029] Specifically, in this embodiment, the skeleton 1 includes a cylindrical skeleton body 11, an annular skeleton upper limit wall 12 extending outward from the upper end of the skeleton body 11, and an annular skeleton lower limit wall 13 extending outward from the lower end of the skeleton body 11.

[0030] The coil 2 is wound around the frame body 11 and is completely located between the frame upper limit wall 12 and the frame lower limit wall 13 .

[0031] The first plastic packaging member 3 is disposed around the coil 2 , and two ends thereof are fixedly connected to two ends of the frame 1 , respectively. The first plastic packaging member 3 and the frame 1 together wrap and seal the coil 2 , thereby forming a first sealing protection structure for the coil 2 .

[0032] Specifically, the first plastic sealing member 3 includes a first plastic sealing member body 31 which is cylindrical and arranged around the coil 2, a first plastic sealing member upper wall 32 which is bent inwardly and extended from the upper end of the first plastic sealing member body 31 and fixed to the upper limit wall 12 of the frame, and a first plastic sealing member lower wall 33 which is bent inwardly and extended from the lower end of the first plastic sealing member body 31 and fixed to the lower limit wall 13 of the frame. The first plastic sealing member upper wall 32 forms a seal with the upper limit wall 12 of the frame, and the first plastic sealing member lower wall 33 forms a seal with the lower limit wall 13 of the frame.

[0033] In this embodiment, the first plastic sealing component 3 and the frame 1 are integrally injection molded.

[0034] The hardware 4 includes an inner hardware 41 which is cylindrical and inserted into the inner side of the frame 1 and an outer hardware 42 which is sleeved and arranged around the first plastic package 3. The inner hardware 41 and the outer hardware 42 are riveted and together wrap the frame 1, the coil 2 and the first plastic package 3. The hardware 4 is used to fix the solenoid valve coil 100 to other structures and to introduce external electrical signals to the coil 2.

[0035] In this embodiment, the internal hardware 41 includes an internal hardware body 411 that is cylindrical and inserted into the inner side of the skeleton body 11, and an annular internal hardware upper wall 412 that is bent outward from the upper end of the internal hardware body 411. The internal hardware upper wall 412 is pressed against the upper end of the skeleton body 11 and is fixedly connected to the first plastic sealing component upper wall 32.

[0036] The outer hardware 42 includes an outer hardware body 421 which is cylindrical and sleeved on the first plastic package body 31, and an outer hardware lower wall 422 which is bent inward and extends from the lower end of the outer hardware body 421. The outer hardware lower wall 422 is attached to the first plastic package lower wall 33 and extends to form a riveted connection with the lower end of the inner hardware 41.

[0037] The second plastic sealing member 5 is arranged around the outer hardware 42, the upper end of the second plastic sealing member 5 is fixedly connected and sealed with the upper end of the inner hardware 41, and the lower end of the second plastic sealing member 5 is fixedly connected and sealed with the lower end of the outer hardware 42. Thus, a second sealing protection structure for the coil 2 is formed. That is, the twice embedded injection molding structure of the first plastic sealing member 3 and the second plastic sealing member 5 forms a double sealing protection effect for the coil 2, effectively avoiding the phenomenon of water entering the coil 2, having a better waterproof effect and improving reliability.

[0038] Specifically, the second plastic sealing component 5 includes a second plastic sealing component body 51 which is cylindrical and sleeved and fixed on the outer hardware component body 421, and a second plastic sealing component upper wall 52 which is formed by bending and extending inward from the upper end of the second plastic sealing component body 51. The second plastic sealing component upper wall 52 is respectively stacked on the first plastic sealing component upper wall 32 and the inner hardware component upper wall 412, and is respectively fixedly connected to the first plastic sealing component upper wall 32 and the inner hardware component upper wall 412 to form a seal.

[0039] In order to further enhance the fixing strength and stability between the frame 1 and the first plastic package 3 , a first groove 121 is provided on the upper side of the upper limit wall 12 of the frame, and a first protrusion 321 matching the first groove 121 is provided on the upper wall 32 of the first plastic package, and the first protrusion 321 is accommodated and fixed in the first groove 121 .

[0040] More preferably, a second protrusion 131 is provided on the lower side of the lower limiting wall 13 of the framework, and a second groove 331 matching with the second protrusion 131 is provided on the lower wall 33 of the first plastic package, and the second protrusion 131 is received and fixed in the second groove 331 .

[0041] In this embodiment, the second plastic sealing component 5 is integrally injection-molded with the first plastic sealing component 3 and the hardware component 4 .

[0042] Compared with the prior art, the solenoid valve coil of the utility model is wound around a frame and then integrally injected with the frame to form a first plastic sealing part; the first plastic sealing part and the frame form a first sealing protection structure for the coil, and at the same time, the inner hardware of the hardware is inserted into the inner side of the frame, and the outer hardware of the hardware is sleeved on the outer side of the first plastic sealing part to form a package, and a second plastic sealing part is formed by injection molding with the hardware and the first plastic sealing part at the same time, forming a second sealing protection structure for the coil, that is, the twice embedded injection molding structure of the first plastic sealing part and the second plastic sealing part forms a double sealing protection effect for the coil, which effectively avoids water entering the coil, has a better waterproof effect, and improves reliability.

[0043] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A solenoid valve coil, characterized in that: include: skeleton; A coil, the coil being wound around the outer circumference of the frame; A first plastic sealing member, which is disposed around the coil and has two ends fixedly connected to two ends of the frame respectively, and the first plastic sealing member and the frame together wrap and seal the coil; Hardware, the hardware includes an inner hardware which is cylindrical and inserted into the inner side of the frame and an outer hardware which is sleeved and arranged around the first plastic sealing part; the inner hardware and the outer hardware are riveted and together wrap the frame, the coil and the first plastic sealing part; and, The second plastic sealing component is arranged around the outer hardware, the upper end of the second plastic sealing component is fixedly connected and sealed with the upper end of the inner hardware, and the lower end of the second plastic sealing component is fixedly connected and sealed with the lower end of the outer hardware.

2. The solenoid valve coil according to claim 1, characterized in that: The skeleton includes a cylindrical skeleton body, an annular skeleton upper limit wall extending outward from the upper end of the skeleton body, and an annular skeleton lower limit wall extending outward from the lower end of the skeleton body; the coil is wound around the skeleton body and is completely located between the skeleton upper limit wall and the skeleton lower limit wall.

3. The solenoid valve coil according to claim 2, characterized in that: The first plastic sealing component includes a first plastic sealing component body which is cylindrical and arranged around the coil, a first plastic sealing component upper wall which is bent inwardly and extended from the upper end of the first plastic sealing component body and fixed to the upper limit wall of the frame, and a first plastic sealing component lower wall which is bent inwardly and extended from the lower end of the first plastic sealing component body and fixed to the lower limit wall of the frame; the first plastic sealing component upper wall forms a seal with the upper limit wall of the frame, and the first plastic sealing component lower wall forms a seal with the lower limit wall of the frame.

4. The solenoid valve coil according to claim 3, characterized in that: The inner hardware includes an inner hardware body that is cylindrical and inserted into the inner side of the skeleton body, and an annular inner hardware upper wall that is bent outward from the upper end of the inner hardware body, and the inner hardware upper wall is pressed against the upper end of the skeleton body and is fixedly connected with the first plastic sealing component upper wall; the outer hardware includes an outer hardware body that is cylindrical and sleeved on the first plastic sealing component body, and an outer hardware lower wall that is bent inward and extends from the lower end of the outer hardware body, and the outer hardware lower wall is attached to the first plastic sealing component lower wall and extends to form a riveted connection with the lower end of the inner hardware.

5. The solenoid valve coil according to claim 4, characterized in that: The second plastic sealing component includes a second plastic sealing component body which is cylindrical and sleeved and fixed on the outer hardware component body, and a second plastic sealing component upper wall formed by the upper end of the second plastic sealing component body being bent inward and extended. The second plastic sealing component upper wall is respectively overlapped on the first plastic sealing component upper wall and the inner hardware component upper wall, and is respectively fixedly connected to the first plastic sealing component upper wall and the inner hardware component upper wall to form a seal.

6. The solenoid valve coil according to claim 5, characterized in that: A first groove is disposed on the upper side of the upper limit wall of the frame, and a first protrusion matching the first groove is disposed on the upper wall of the first plastic sealing component. The first protrusion is received and fixed in the first groove.

7. The solenoid valve coil according to claim 5, characterized in that: A second protrusion is provided on the lower side of the lower limiting wall of the frame, and a second groove matching the second protrusion is provided on the lower wall of the first plastic sealing component, and the second protrusion is received and fixed in the second groove.

8. The solenoid valve coil according to claim 1, characterized in that: The second plastic sealing component is integrally injection-molded with the first plastic sealing component and the hardware component.

9. The solenoid valve coil according to claim 1, characterized in that: The first plastic sealing component and the frame are integrally injection molded.

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