Direct insertion type small high-density aviation socket filtering device

Abstract

The utility model provides a direct insertion type small high-density aviation socket filtering device. According to the specific structure, a ceramic array plate capacitor is arranged on a tail end contact pin of the aviation socket, the ceramic array plate capacitor is of a disc-shaped structure, and the outer diameter of the ceramic array plate capacitor is not larger than the outer diameter of an insulator; pinholes which are in one-to-one correspondence with the contact pins on the insulator are formed in the ceramic array plate capacitor; after the ceramic array plate capacitor is arranged on the insulator, the contact pins are inserted into the corresponding pin holes; fasteners used for limiting the ceramic array plate capacitors are arranged on the peripheries of the insulator and the ceramic array plate capacitors. According to the utility model, the welding wire end of the aviation socket is modified, and the ceramic array plate capacitor is placed on the insulator and then is fixed through the fastener without increasing the outer diameter and length of the aviation socket, so that the purpose of aviation socket filtering integration is achieved, and a better filtering function of the aviation socket is realized. The structure provided by the utility model is suitable for a small-sized direct-insertion type high-density aviation socket.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, specifically a direct-insertion small high-density aviation socket filtering device. Background Technology

[0002] Aviation sockets (circular electrical connectors) are devices used to connect electrical circuits in aerospace and other industrial equipment. The inclusion of filtering functionality in aviation sockets is primarily to reduce electromagnetic interference (EMI) and radio frequency interference (RFI), i.e., suppressing interfering signals and allowing only useful signals to pass through, thereby improving the system's electromagnetic compatibility.

[0003] For larger aviation sockets, printed circuit board capacitors can be installed inside the socket to achieve filtering. With technological advancements, electronic devices are becoming increasingly miniaturized, necessitating smaller aviation sockets to match. However, current direct-plug miniature aviation sockets, because the plug is inserted into the bottom of the socket, lack sufficient space to accommodate printed circuit board capacitors. Furthermore, due to the small size of aviation sockets, even the smallest capacitors available on the market cannot fit inside, necessitating placement inside the chassis. However, this filtering method is significantly less effective than using filtering components integrated into the aviation socket itself. Utility Model Content

[0004] The purpose of this invention is to provide a direct-plug type small high-density aviation socket filtering device to solve the problem that existing small aviation sockets cannot achieve good filtering effects.

[0005] This utility model is implemented as follows:

[0006] A direct-plug type small high-density aviation socket filter device includes a ceramic array capacitor mounted on the insulator of the soldering end of the aviation socket. The ceramic array capacitor has a circular structure with an outer diameter not exceeding the outer diameter of the insulator. Small holes corresponding to the pins on the insulator are formed on the ceramic array capacitor. After the ceramic array capacitor is placed on the insulator, the pins are inserted into the corresponding pin holes. Fasteners for limiting the position of the ceramic array capacitor are provided around the insulator and the ceramic array capacitor.

[0007] Preferably, the thickness of the ceramic array plate capacitor is 1 mm.

[0008] Preferably, a positioning notch is provided at the edge of the ceramic array plate capacitor.

[0009] In this utility model, for the internal aviation socket (corresponding to embodiment 1), the fastener includes a sleeve and a clamping nut; the clamping nut includes a nut body and a pressure ring extending inward along the end face at the outer end of the nut body, and the inner wall of the nut body is provided with internal threads; the sleeve is sleeved on the outside of the insulator and the ceramic array plate capacitor, the clamping nut is screwed on the threaded section of the aviation socket, and the pressure ring at the end of the clamping nut tightly presses against the end face of the sleeve.

[0010] In this utility model, for the external aviation socket (corresponding to embodiment 2), the fastener is a clamping ring. The clamping ring is formed by flaring both ends of a cylindrical body to create a variable diameter core hole with a boss in the middle. The clamping ring includes flared sections at both ends and a middle boss located between the two flared sections. The inner diameter of the middle boss is the smallest, the inner diameter of one of the flared sections is the second largest, and the inner diameter of the other flared section is the largest. After the clamping ring is sleeved on the outside of the insulator and the ceramic array capacitor, the flared section with the largest inner diameter is clamped to the outer wall of the step that contacts the insulator by an interference fit. The middle boss is sleeved on the outside of the insulator and the ceramic array capacitor.

[0011] This invention modifies the soldering end of an aviation socket. Without increasing the outer diameter and length of the aviation socket, it integrates filtering by placing a ceramic array capacitor on the insulator and securing it with fasteners, thus achieving better filtering performance. The structure of this invention is suitable for small, high-density (i.e., high pin density) direct-plug aviation sockets.

[0012] When transmitting signals using this invention, interference signals can be effectively shielded, especially signals of different frequency bands, making signal transmission stable and less susceptible to external interference. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the aviation socket in Example 1.

[0014] Figure 2 This is a schematic diagram of the structure of the ceramic array plate capacitor in this utility model.

[0015] Figure 3 This is a schematic diagram of the compression nut structure in Example 1; where (a) is a half-section front view; and (b) is a side view.

[0016] Figure 4 This is a schematic diagram of the structure of the aviation socket after the ceramic array plate capacitor is installed in Example 1.

[0017] Figure 5 This is a schematic diagram of the aviation socket in Example 2.

[0018] Figure 6This is a schematic diagram of a half-section of the clamping ring in Example 2.

[0019] Figure 7 This is a schematic diagram of the structure of the aviation socket after the ceramic array plate capacitor is installed in Example 2.

[0020] In the diagram: 1. Insulator; 2. Pin; 3. Frustum; 4. Threaded section; 5. Sleeve; 6. Compression nut; 6-1. Nut body; 6-2. Pressure ring; 7. Ceramic array capacitor; 7-1. Pinhole; 7-2. Positioning notch; 8. 704 glue; 9. Teflon flexible wire; 10. First step; 11. Second step; 12. Third step; 13. Compression ring; 13-1. First flared section; 13-2. Middle boss; 13-3. Second flared section. Detailed Implementation

[0021] The plug-in miniature high-density aviation socket filtering device provided by this utility model consists of a ceramic array capacitor fitted onto the pins of an aviation socket, and then secured to the aviation socket with fasteners. Specifically, a 1mm thick ceramic array capacitor is custom-made according to the pin arrangement of the aviation socket, and the capacitance of the ceramic array capacitor is prepared according to technical requirements. It is then fixed with fasteners, followed by gluing and installation.

[0022] When installing the plug-in small high-density aviation socket filter device of this utility model onto the chassis, there are two installation methods: one is to install it from the inside to the outside of the chassis, and the other is to install it from the outside to the inside of the chassis.

[0023] The device of this utility model will be described in detail below through two embodiments.

[0024] Example 1

[0025] The direct-plug miniature high-density aviation socket filter device provided in this embodiment is inserted from the inside of the chassis to the outside of the chassis shell.

[0026] like Figure 1 As shown, for the case of installation from the inside out within the chassis, the aviation socket structure includes an insulator 1, a pin 2, a frustum 3, and a threaded section 4. The insulator 1 is a cylindrical structure, the pin 2 is located on one end face of the insulator 1, and the other end face of the insulator 1 is connected to the frustum 3 and the threaded section 4 in sequence. The outer diameters of the insulator 1, the frustum 3, and the threaded section 4 increase sequentially.

[0027] Ceramic array plate capacitor structure such as Figure 2As shown. The ceramic array capacitor 7 is custom-made and has a circular disc shape. The thickness of the ceramic array capacitor 7 is approximately 1 mm, and its outer diameter is no larger than the outer diameter of the insulator 1; typically, both are designed to have the same outer diameter. The ceramic array capacitor 7 has several pinholes 7-1, each corresponding to a pin 2 on the insulator 1. When the ceramic array capacitor 7 is placed on the insulator 1, the pin 2 passes through the pinholes 7-1. The figure shows six pinholes, corresponding to six pins on the insulator. A positioning notch 7-2 is provided at the edge of the ceramic array capacitor 7, allowing for quick placement onto the insulator 1. The six pinholes mentioned in this embodiment are merely an example; in actual applications, any number of pinholes from 1 to 55 may be used.

[0028] In this embodiment, fasteners are used to limit the position of the ceramic array plate capacitor 7. Combined with... Figure 4 In this embodiment, the fastener includes a sleeve 5 and a clamping nut 6. The structure of the clamping nut 6 is as follows: Figure 3 As shown. The clamping nut 6 includes a cylindrical nut body 6-1 with internal threads on its inner wall. A pressure ring 6-2 extends inward from the outer end of the nut body 6-1 along its end face. The sleeve 5 is a cylindrical structure with an inner diameter slightly larger than the outer diameter of the insulator 1. The outer diameter of the sleeve 5 is the same as or slightly smaller than the outer diameter of the frustum 3. The height of the sleeve 5 is slightly greater than the sum of the thicknesses of the insulator 1 and the pin 2. The sleeve 5 is fitted onto the outside of the insulator 1 and the ceramic array capacitor 7 to hold the ceramic array capacitor 7 on the insulator 1 in place. The bottom of the sleeve 5 rests on the frustum 3, and the top of the sleeve 5 is slightly higher than the tip of the pin 2. After the sleeve 5 is in place, the clamping nut 6 is screwed onto the threaded section 4 of the aviation socket, and the pressure ring 6-2 of the clamping nut 6 presses tightly against the end face of the sleeve 5.

[0029] During installation, first, slip sleeve 5 over the outside of insulator 1 and ceramic array capacitor 7. Then, push ceramic array capacitor 7 from the soldering end of the aviation socket along pin 2 to insulator 1. Placing sleeve 5 first, then ceramic array capacitor 7, avoids the problem of damaging ceramic array capacitor 7 if it is placed first and then sleeve 5. Next, solder ceramic array capacitor 7 and pin 2 together at the contact point. Then, solder Teflon flexible wire 9 to pin 2. Finally, apply 704 glue 8 (i.e., insulating glue) to the gaps.

[0030] Example 2

[0031] The direct-plug miniature high-density aviation socket filter device provided in this embodiment is inserted into the chassis shell from the outside to the inside.

[0032] like Figure 5As shown, for installation from the outside inwards from the chassis, the aviation socket structure, in addition to the insulator 1, pin 2, and threaded section 4 as in Embodiment 1, also includes a first step 10, a second step 11, and a third step 12 disposed between the insulator 1 and the threaded section 4. The first step 10, the second step 11, and the third step 12 are all cylindrical in shape, and their outer diameters increase sequentially. The outer diameter of the threaded section 4 is smaller than the outer diameter of the third step 12, but approximately the same as the outer diameter of the second step 11.

[0033] The ceramic array plate capacitor structure used in this embodiment is the same as that in Embodiment 1, and will not be described again here.

[0034] In this embodiment, a clamping ring is used to limit the position of the ceramic array plate capacitor 7. Figure 6 As shown, the clamping ring 13 is formed by flaring both ends of a cylindrical body to create a variable-diameter core hole with a central boss. Specifically, the clamping ring 13 includes a first flared section 13-1 and a second flared section 13-3 at both ends, and a central boss 13-2. The inner diameter of the central boss 13-2 is the smallest, the inner diameter of the second flared section 13-3 is the second largest, and the inner diameter of the first flared section 13-1 is the largest. The inner diameter of the central boss 13-2 is slightly larger than the outer diameter of the insulator 1, typically by 0.5 mm. The outer diameter of the clamping ring 13 is smaller than the outer diameter of the second step 11. The height of the first flared section 13-1 is the same as the height of the first step 10. After the clamping ring 13 is fitted onto the outside of the insulator 1, the first flared section 13-1 is connected to the outer wall of the first step 10 through an interference fit process. The central boss 13-2 surrounds the insulator 1 and the ceramic array capacitor 7, and the height of the central boss 13-2 is slightly greater than the sum of the thicknesses of the insulator 1 and the ceramic array capacitor 7. The height of the second flared section 13-3 is slightly greater than the height of the pin 2.

[0035] A chamfer may be provided at the end of the first flared section 13 to facilitate the installation of the clamping ring 13.

[0036] During installation, first, attach the clamping ring 13 to the outside of the insulator 1 and the ceramic array capacitor 7, so that the first flared section 13-1 is snapped onto the outer wall of the first step 10. Then, push the ceramic array capacitor 7 from the soldering end of the aviation socket along the pin 2 to the insulator 1. Then, solder the ceramic array capacitor 7 and the pin 2 together at the contact point. Solder the Teflon flexible wire 9 to the pin 2. Then, apply 704 glue 8 (i.e., insulating glue) to the gap.

Claims

1. A filter device for a direct-plug miniature high-density aviation socket, characterized in that, A ceramic array board capacitor is arranged on the insulator of the aviation socket, the ceramic array board capacitor is in a wafer-like structure, and the outer diameter thereof is not greater than the outer diameter of the insulator; a pin hole corresponding to each pin on the insulator is formed on the ceramic array board capacitor; after the ceramic array board capacitor is arranged on the insulator, the pins are inserted into the corresponding pin holes; and a fastener for limiting the ceramic array board capacitor is arranged on the periphery of the insulator and the ceramic array board capacitor.

2. The plug-in type small high-density aviation socket filter device according to claim 1, characterized in that, The thickness of the ceramic array board capacitor is 1 mm.

3. The direct-plug miniature high-density aviation socket filter device according to claim 1, characterized in that, A positioning notch is arranged on the edge of the ceramic array board capacitor.

4. The plug-in type small high-density aviation socket filter device according to claim 1, characterized in that, For the built-in aviation socket, the fastener comprises a sleeve and a compression nut; the compression nut comprises a nut body and a compression ring extending inward along the end face of the outer end of the nut body, and the inner wall of the nut body is provided with an internal thread; the sleeve is sleeved on the outside of the insulator and the ceramic array board capacitor, the compression nut is screwed on the threaded section of the aviation socket, and the compression ring at the end of the compression nut tightly presses the end face of the sleeve.

5. The direct-plug miniature high-density aviation socket filter device according to claim 1, characterized in that, For the built-in aviation socket, the fastener comprises a sleeve and a compression nut; the compression nut comprises a nut body and a compression ring extending inward along the end face of the outer end of the nut body, and the inner wall of the nut body is provided with an internal thread; the sleeve is sleeved on the outside of the insulator and the ceramic array board capacitor, the compression nut is screwed on the threaded section of the aviation socket, and the compression ring at the end of the compression nut tightly presses the end face of the sleeve.

6. An aircraft socket, characterised in that, For the built-in aviation socket, the fastener comprises a sleeve and a compression nut; the compression nut comprises a nut body and a compression ring extending inward along the end face of the outer end of the nut body, and the inner wall of the nut body is provided with an internal thread; the sleeve is sleeved on the outside of the insulator and the ceramic array board capacitor, the compression nut is screwed on the threaded section of the aviation socket, and the compression ring at the end of the compression nut tightly presses the end face of the sleeve. The aviation socket adopts the direct insertion type small high-density aviation socket filter device according to any one of claims 1 to 5.

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