WO2023185276A1

WO2023185276A1 - Coil component and solenoid valve

Info

Publication number: WO2023185276A1
Application number: PCT/CN2023/075730
Authority: WO
Inventors: 江超; 张积友; 陈勇好
Original assignee: 浙江盾安人工环境股份有限公司
Priority date: 2022-03-28
Filing date: 2023-02-13
Publication date: 2023-10-05
Also published as: CN217306278U

Abstract

The present application provides a coil component and a solenoid valve. The coil component comprises: a framework structure; a plurality of contact pins, each contact pin comprising a pin, a transition section, and a connecting plug which are connected in sequence, wherein each pin is connected to the framework structure, one part of each transition section is located in the framework structure, and the other part of each transition section is located outside the framework structure; and a fixing frame, a plurality of limiting holes being formed in the fixing frame, and the parts of the transition sections located outside the framework structure penetrating through the limiting holes. By using the solution, the fixing frame is provided, the plurality of limiting holes are formed side by side, and the parts of the plurality of transition sections located outside the framework structure penetrate through the plurality of limiting holes in a one-to-one correspondence mode, such that the transition sections can be limited by means of the limiting holes; and a moving range of the contact pins is further limited, such that the problem that the contact pins are not flush due to non-uniform injection molding pressure in a housing injection molding process of the coil component is avoided.

Description

Coil components and solenoid valves

This application requests the priority of the patent application submitted to the State Intellectual Property Office of China on March 28, 2022, with the application number 202220697605.0 and the invention title "Coil Components and Solenoid Valve".

Technical field

The present application relates to the technical field of solenoid valves, specifically, to a coil component and a solenoid valve.

Background technique

At present, the solenoid valve consists of two parts: a coil component and a valve body. The valve body is equivalent to the rotor part, and the coil component is equivalent to the stator part. During the working process, by applying a pulse drive signal to the coil component, regular magnetic field movement is generated on the pole claws of the magnetic conductor in the coil component, which drives the rotor inside the valve body to rotate to adjust the opening of the valve body, thereby achieving Control of the flow of working medium in the system. Coil components mainly include stator shells, skeleton structures, pins and other structures. For coil components in the prior art, during the process of injecting the shell on the skeleton structure, uneven injection pressure can easily deform the pin positions of the skeleton structure, resulting in The pins are not flush, which can easily cause poor contact and affect the performance of the solenoid valve.

Application content

This application provides a coil component and a solenoid valve to solve the problem of uneven pins in the prior art.

In order to solve the above problems, according to one aspect of the present application, the present application provides a coil component, including: a skeleton structure; a plurality of pins, the pins include pins, transition sections and plug connectors connected in sequence, wherein the pins Connected to the skeleton structure, a part of the transition section is located inside the skeleton structure, and the other part of the transition section is located outside the skeleton structure; the fixed frame has a limit hole, and the parts of the multiple transition sections located outside the skeleton structure pass through the limit hole; Wherein, there is one limiting hole and multiple transition sections pass through the same limiting hole, or there are multiple limiting holes and at least one transition section penetrates into each limiting hole.

Further, the fixing frame has a plate-like structure and has a plurality of limiting holes. The plurality of limiting holes are distributed in the length direction of the fixing frame, and one side of the fixing frame is in contact with the skeleton structure.

Further, the cross section of the transition section is a first rectangle, the cross section of the limiting hole is a second rectangle, the first rectangle has a first long side and a first short side, and the second rectangle has a second long side and a second short side. sides; wherein, the first long side and the second long side are both perpendicular to the axial direction of the skeleton structure, and the first short side and the second short side are both parallel to the axial direction of the skeleton structure.

Further, the size difference between the first long side and the second long side is L1, and the size difference between the first short side and the second short side is L2, L2<L1.

Further, there are multiple fixing brackets, the multiple fixing brackets are arranged side by side, and each transition section passes through the limiting holes of the multiple fixing brackets.

Further, the plug connector and the transition section of the pin are perpendicular to each other, and the multiple plug connectors are located on the same side of the multiple transition sections.

Further, the skeleton structure includes a first skeleton and a second skeleton, and a plurality of pins are distributed on the first skeleton and the second skeleton; wherein, all the pins are arranged in a row, and the plurality of limiting holes of the fixing frame are arranged in a row. setting; or, the pins on the first frame are arranged in the first row, the pins on the second frame are arranged in the second row, and the multiple limit holes of the fixed frame are arranged in two rows, and the two rows of limit holes correspond to First row of pins and second row of pins.

Further, the skeleton structure includes a first skeleton and a second skeleton. The first skeleton includes a first annular body and a plurality of first pins arranged on the first annular body. The second skeleton includes a second annular body and a second pin. A plurality of second pins on the annular body; wherein the first annular body and the second annular body are coaxially arranged, a plurality of first pins and a plurality of second pins are alternately arranged in the radial direction of the first annular body, each of the first annular body and the second annular body are arranged coaxially. Each pin is connected to a pin, and each second pin is connected to a pin. One side of the fixing frame is in contact with multiple first pins and multiple second pins.

Further, the plurality of pins include a plurality of first pins and a plurality of second pins. The pins of the first pins are perpendicular to the transition section and connected to the first pins. The pins of the second pins are perpendicular to the transition section. The segments are connected to the second pins, and the extension directions of the pins of the first pin and the pins of the second pin are opposite.

Further, multiple plug joints extend along the axial direction of the skeleton structure. The coil component also includes an injection molded shell and an injection molded connector. The injection molded shell wraps the skeleton structure. The injection molded connector is connected to the injection molded shell. The multiple plug connectors are located in the cavity of the injection molded connector. In the body, the opening of the injection molded joint is oriented toward the axis of the skeleton structure.

According to another aspect of the present application, a solenoid valve is provided. The solenoid valve includes the above-mentioned coil component.

Applying the technical solution of the present application, a coil component is provided, including: a skeleton structure; a plurality of pins, the pins include pins, transition sections and plug connectors connected in sequence, wherein the pins are connected to the skeleton structure, and the transition sections One part of the transition section is located inside the skeleton structure, and the other part of the transition section is located outside the skeleton structure; the fixed frame has a limit hole, and the parts of the multiple transition sections located outside the skeleton structure pass through the limit hole; wherein, the limit hole is one , multiple transition sections pass through the same limit hole, or there are multiple limit holes, and at least one transition section penetrates into each limit hole. Using this solution, a fixed frame is provided with multiple limit holes arranged side by side. The parts of multiple transition sections located outside the skeleton structure pass through the multiple limit holes one by one, so that the transition can be adjusted through the limit holes. The segment plays a limiting role, further limiting the position of the pins, and avoiding the problem of uneven pins due to uneven injection pressure during the injection molding process of the coil component.

Description of drawings

The description and drawings that constitute a part of this application are used to provide a further understanding of this application. The illustrative embodiments and their descriptions of this application are used to explain this application and do not constitute an improper limitation of this application. In the attached picture:

Figure 1 shows a cross-sectional view of a coil component provided by an embodiment of the present application;

Figure 2 shows a top view of the coil component in Figure 1;

FIG. 3 shows a schematic structural diagram of the fixing bracket in FIG. 1 .

Among them, the above-mentioned drawings include the following reference signs:

10. Skeleton structure; 11. First skeleton; 111. First annular body; 12. Second skeleton; 121. Second annular body; 122. Second pin;

20. Pin; 21. Pin; 22. Transition section; 23. Plug connector; 24. First pin; 25. Second pin;

30. Fixed frame; 31. Limiting hole; 311. Second long side; 312. Second short side;

40. Injection molding shell;

50. Injection molded joints.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application or its application or uses. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

As shown in Figures 1 to 3, the embodiment of the present application provides a coil component, including: a skeleton structure 10; a plurality of pins 20, the pins 20 include sequentially connected pins 21, transition sections 22 and plug connectors. 23. The pins 21 are connected to the skeleton structure 10, a part of the transition section 22 is located inside the skeleton structure 10, and the other part of the transition section 22 is located outside the skeleton structure 10; the fixing frame 30 has a plurality of limiting holes 31. , the parts of the plurality of transition sections 22 located outside the skeleton structure 10 pass through the plurality of limiting holes 31 one by one; wherein, there is one limiting hole 31, and the plurality of transition sections 22 all pass through the same limiting hole 31, Or there are multiple limiting holes 31 , and at least one transition section 22 penetrates into each limiting hole 31 .

Using this solution, a fixed frame 30 is provided, and a limiting hole 31 is provided. The portions of the plurality of transition sections 22 located outside the skeleton structure 10 pass through the limiting holes 31, so that the transition sections 22 can be limited through the limiting holes 31. This further limits the position of the pins 20 and avoids the problem that the pins 20 are not flush due to uneven injection pressure during the injection molding process of the coil component. Among them, the plurality of transition sections 22 can be limited by one limiting hole 31, or the plurality of transition sections 22 can be limited by multiple limiting holes 31. When there are multiple limiting holes 31, the limiting holes 31 can limit the transition sections 22. The number of position holes 31 and the number of pins 20 may be equal, or the number of limiting holes 31 may be less than the number of pins 20 .

In FIG. 3 , the fixing frame 30 has a plate-like structure and has a plurality of limiting holes 31 . The plurality of limiting holes 31 are distributed in the length direction of the fixing frame 30 . One side of the fixing frame 30 is in contact with the frame structure 10 . The fixing bracket 30 is arranged into a plate-like structure, which can not only match the shape of the skeleton structure 10 , but also facilitate the provision of multiple limiting holes 31 in the length direction of the fixing bracket 30 to correspond to the plurality of pins 20 . Contacting one side of the fixing bracket 30 with the skeleton structure 10 facilitates the positioning of the fixing bracket 30 and can have a limiting effect on the skeleton structure 10 to prevent deformation of the skeleton structure 10 .

Specifically, the cross section of the transition section 22 is a first rectangle, and the cross section of the limiting hole 31 is a second rectangle. The first rectangle has a first long side and a first short side, and the second rectangle has a second long side 311 and a first short side. The second short side 312; wherein, the first long side and the second long side 311 are both perpendicular to the axial direction of the skeleton structure 10, and the first short side and the second short side 312 are both parallel to the axial direction of the skeleton structure 10. The cross-section of the transition section 22 and the cross-section of the limiting hole 31 are respectively set into a first rectangle and a second rectangle, so that the pin 20 can be easily inserted into the fixing bracket 30 .

The size difference between the first long side and the second long side 311 is L1, and the size difference between the first short side and the second short side 312 is L2, L2<L1. Limiting the size difference L1 between the first long side and the second long side 311 and the size difference L2 between the first short side and the second short side 312 within the above ranges can ensure that the fixing bracket 30 is aligned with the pin 20 on the axis. The upward limiting effect can ensure that the fixing bracket 30 can smoothly penetrate the pins 20. Therefore, the problem of the pins 20 being uneven due to uneven injection pressure during the injection molding process of the coil component is effectively avoided.

In this embodiment, there are multiple fixing brackets 30 , and the multiple fixing brackets 30 are arranged side by side. Each transition section 22 passes through the limiting holes 31 of the multiple fixing brackets 30 . Using the above arrangement method, multiple fixing brackets 30 are arranged, and the multiple fixing brackets 30 are arranged side by side. Each transition section 22 passes through the limiting holes 31 of the multiple fixing brackets 30, which further ensures that the fixing brackets 30 are inserted into each other. The limiting function of the needle 20 in the axial direction further avoids the problem that the needle 20 is not flush due to uneven injection pressure during the injection molding process of the coil component.

Specifically, the plug connector 23 and the transition section 22 of the pin 20 are perpendicular to each other, and the multiple plug connectors 23 are located on the same side of the multiple transition sections 22 . Adopting the above arrangement method facilitates the connection between the plug connector 23 and the external structure.

Specifically, in FIG. 1 , the skeleton structure 10 includes a first skeleton 11 and a second skeleton 12 , and a plurality of pins 20 are distributed on the first skeleton 11 and the second skeleton 12 , where all the pins 20 are arranged in a row. , the plurality of limiting holes 31 of the fixed frame 30 are also arranged in a row, that is, a row of limiting holes 31 and a row of pins 20 are limitedly matched.

Or, in an embodiment not shown, the skeleton structure 10 includes a first skeleton 11 and a second skeleton 12. A plurality of pins 20 are distributed on the first skeleton 11 and the second skeleton 12. The pins 20 on the first skeleton 11 are The pins 20 are arranged in a first row, and the pins 20 on the second frame 12 are arranged in a second row. The plurality of limiting holes 31 of the fixing frame 30 are arranged in two rows, and the two rows of limiting holes 31 correspond to the first row respectively. The pins 20 and the second row of pins 20, that is, the two rows of limiting holes 31 are limitedly matched with the two rows of pins 20 respectively.

In this embodiment, the skeleton structure 10 includes a first skeleton 11 and a second skeleton 12. The first skeleton 11 includes a first annular body 111 and a plurality of first pins provided on the first annular body 111. The second skeleton 12 It includes a second annular body 121 and a plurality of second pins 122 provided on the second annular body 121; wherein the first annular body 111 and the second annular body 121 are coaxially arranged, and the plurality of first pins and the plurality of second pins are The pins 122 are alternately arranged in the radial direction of the first annular body 111. Each first pin is connected to a pin 20, and each second pin 122 is connected to a pin 20. One side of the fixing frame 30 and a plurality of first pins 122 are connected to a pin 20. The pins and the plurality of second pins 122 are all in contact. In this solution, a plurality of first pins and a plurality of second pins 122 are alternately arranged in the radial direction of the first annular body 111, and each first pin is connected to a pin 20, and each second pin 122 is connected to One pin 20, one side of the fixing bracket 30 is in contact with the plurality of first pins and the plurality of second pins 122, so that the fixing bracket 30 can limit the position of the plurality of first pins and the plurality of second pins 122. , thereby defining the position of the pins and preventing multiple pins from being misaligned during injection molding.

Among them, the plurality of pins 20 include a plurality of first pins 24 and a plurality of second pins 25. The pins of the first pins 24 are perpendicular to the transition section 22 and connected to the first pins. The pins of the second pins 25 are The pins are perpendicular to the transition section 22 and connected to the second pins 122 , and the extension directions of the pins of the first pin 24 and the pins of the second pin 25 are opposite. Through the above arrangement, the reliable connection between the first pin 24 and the first pin can be ensured; the reliable connection between the second pin 25 and the second pin 122 can be ensured.

Specifically, the plurality of plug joints 23 all extend along the axial direction of the skeleton structure 10. The coil component also includes an injection molding shell 40 and an injection molding joint 50. The injection molding shell 40 wraps the skeleton structure 10, and the injection molding joints 50 and the injection molding shell 40 are connected. A plurality of The plug connectors 23 are located in the cavity of the injection molded connector 50 , and the opening of the injection molded connector 50 faces the axial direction of the skeleton structure 10 . An injection molding shell 40 is provided to wrap the skeleton structure 10 to ensure the stability of the skeleton structure 10 during operation; an injection molding joint 50 is provided, and a plurality of plug joints 23 are located in the cavity of the injection molding joint 50, with the opening of the injection molding joint 50 facing The axial direction of the skeleton structure 10 can not only ensure reliable connection with the external structure, but also prevent water from contacting the plug connector 23 to cause poor contact and affect the working performance of the coil components.

Another embodiment not shown in the figure provides a solenoid valve, which includes the above-mentioned coil component. Using this solution, a fixed frame 30 is provided with a plurality of limit holes 31 arranged side by side. The portions of the plurality of transition sections 22 located outside the skeleton structure 10 pass through the plurality of limit holes 31 one by one, so that through the limit The position hole 31 can limit the transition section 22, further limiting the position of the pin 20, avoiding the problem of uneven pins due to uneven injection pressure during the injection molding process of the coil component, further improving the The working performance of the solenoid valve.

It should be noted that the solenoid valve in this application refers to a valve device controlled by electromagnetism, that is, a valve device that controls the direct or indirect movement of the valve needle structure through the magnetic field or magnetic force generated by the coil component. The solenoid valve can be a valve device that only realizes opening and closing of the valve, or a valve device that realizes flow regulation and throttling, such as an electronic expansion valve, or a valve device with other functions.

The above descriptions are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included in the protection scope of this application.

Claims

A coil component, characterized in that it includes:

skeleton structure(10);

A plurality of pins (20), the pins (20) include pins (21), transition sections (22) and plug connectors (23) connected in sequence, wherein the pins (21) and the skeleton The structure (10) is connected, a part of the transition section (22) is located inside the skeleton structure (10), and the other part of the transition section (22) is located outside the skeleton structure (10);

Fixed frame (30), the fixed frame (30) has a limiting hole (31), and the portions of the plurality of transition sections (22) located outside the skeleton structure (10) pass through the limiting hole (31) ); wherein, there is one limiting hole (31), and multiple transition sections (22) all pass through the same limiting hole (31), or there are multiple limiting holes (31). , at least one transition section (22) penetrates into each limiting hole (31).
The coil component according to claim 1, characterized in that the fixing frame (30) has a plate-like structure, there are a plurality of limiting holes (31), and the plurality of limiting holes (31) are located at The fixing bracket (30) is distributed in the length direction, and one side of the fixing bracket (30) is in contact with the skeleton structure (10).
The coil component according to claim 1, characterized in that the cross section of the transition section (22) is a first rectangular shape, the cross section of the limiting hole (31) is a second rectangular shape, and the first rectangular shape is Having a first long side and a first short side, the second rectangle has a second long side (311) and a second short side (312); wherein, the first long side and the second long side (311 ) are perpendicular to the axial direction of the skeleton structure (10), and the first short side and the second short side (312) are both parallel to the axial direction of the skeleton structure (10).
The coil component according to claim 3, characterized in that the size difference between the first long side and the second long side (311) is L1, and the first short side and the second short side The size difference of (312) is L2, L2<L1.
The coil component according to claim 1, characterized in that there are multiple fixing brackets (30), multiple fixing brackets (30) are arranged side by side, and each transition section (22) passes through multiple fixing brackets (30). a limit hole (31) of the fixing bracket (30).
The coil component according to claim 1, characterized in that the plug joints (23) and transition sections (22) of the pins (20) are perpendicular to each other, and the plurality of plug joints (23) are located in multiple the same side of the transition section (22).
The coil component according to claim 1, characterized in that:

The skeleton structure (10) includes a first skeleton (11) and a second skeleton (12), and a plurality of the pins (20) are distributed between the first skeleton (11) and the second skeleton (12). superior;

Wherein, all the pins (20) are arranged in a row, and the plurality of limiting holes (31) of the fixing frame (30) are arranged in a row; or, the pins on the first frame (11) are arranged in a row. (20) are arranged in the first row, the pins (20) on the second frame (12) are arranged in the second row, and the multiple limiting holes (31) of the fixing frame (30) are arranged in two rows. , the two rows of limiting holes (31) respectively correspond to the first row of pins (20) and the second row of pins (20).
The coil component according to claim 1, characterized in that the skeleton structure (10) includes a first skeleton (11) and a second skeleton (12), and the first skeleton (11) includes a first annular body (11). 111) and a plurality of first pins provided on the first annular body (111), the second skeleton (12) includes a second annular body (121) and a plurality of first pins provided on the second annular body (121) a plurality of second pins (122) on the Pins (122) are alternately arranged in the radial direction of the first annular body (111), each of the first pins is connected to one of the pins (20), and each of the second pins (122) is connected to One of the pins (20), one side of the fixing frame (30) is in contact with a plurality of the first pins and a plurality of the second pins (122).
The coil component according to claim 8, characterized in that the plurality of pins (20) includes a plurality of first pins (24) and a plurality of second pins (25), and the first pins The pin of (24) is perpendicular to the transition section (22) and connected to the first pin. The pin of the second pin (25) is perpendicular to the transition section (22) and connected to the third pin. Two pins (122) are connected, and the extension directions of the pins of the first pin (24) and the pins of the second pin (25) are opposite.
The coil component according to claim 1, characterized in that a plurality of the plug joints (23) extend along the axial direction of the skeleton structure (10), the coil component further includes an injection molded shell (40) and an injection molded Joint (50), the injection molding shell (40) wraps the skeleton structure (10), the injection molding joint (50) is connected to the injection molding shell (40), and a plurality of the plug joints (23) are located at the In the cavity of the injection molded joint (50), the opening of the injection molded joint (50) faces the axial direction of the skeleton structure (10).
A solenoid valve, characterized in that the solenoid valve includes the coil component according to any one of claims 1 to 10.