A plug connector with a printed board fixing and protection component

Abstract

The application provides a plug connector with printed board fixing and protection components, relates to the technical field of connectors, and comprises a plug, a printed board and printed board fixing and protection components. The tail end of a contact in the plug is welded with the printed board in a plug-in manner. The printed board fixing and protection components are wrapped outside the printed board and are detachably connected with the tail end of the plug. The printed board fixing and protection components comprise a fixing box, printed board fixing screws, a sealing washer, cover plate fixing screws and a cover plate. The head of the fixing box is provided with a threaded structure. A plurality of threaded holes A are arranged on the tail end face of the fixing box. The sealing washer is arranged between the fixing box and the cover plate. The cover plate fixing screws pass through the cover plate and the sealing washer and are arranged in cooperation with the threaded holes A, so that the cover plate seals and fixes the tail end of the fixing box. A plurality of threaded holes B are arranged in the fixing box. The threaded holes B cooperate with the printed board fixing screws to fix the printed board, so that the printed board is fixed, connected and protected.

Description

Technical Field

[0001] This invention relates to the field of connector technology, specifically to a plug connector with printed circuit board fixing and protection components. Background Technology

[0002] Currently, the most common plug connectors are connected to wires as the connection terminals between cables. The plug is connected to the wire by crimping or soldering, and only realizes the function of electrical transmission.

[0003] Traditional connector plugs can only connect to wires at the end, lacking the structure and function for connecting, fixing, and protecting printed circuit board components. This means that the plug cannot directly connect to printed circuit board components with integrated processing or information storage functions, and can no longer meet the design requirements of modular functional design.

[0004] The usual protective structure for printed circuit boards is to add a sleeve around the outside of the printed circuit board. However, considering that the tail end of the printed circuit board needs to have a wire coming out, the tail end of the sleeve is not sealed. Therefore, the protection formed is not complete and there is still the problem of moisture. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides a plug connector with printed circuit board fixing and protection components, which realizes the fixing, connection and protection of printed circuit boards.

[0006] To achieve the above technical objectives, the adopted technical solution is as follows: a plug connector with printed circuit board fixing and protection components, including a plug, a printed circuit board, and printed circuit board fixing and protection components. The tail end of the contact inside the plug is soldered to the printed circuit board. The printed circuit board fixing and protection components are wrapped around the outside of the printed circuit board and detachably connected to the tail end of the plug. The printed circuit board fixing and protection components include a fixing box, printed circuit board fixing screws, sealing washers, cover plate fixing screws, and a cover plate. The head of the fixing box has a threaded structure, and its tail end face has multiple threaded holes A. A sealing washer is installed between the fixing box and the cover plate. The cover plate fixing screws pass through the cover plate and the sealing washer and are installed in conjunction with the threaded holes A to achieve the sealing and fixing of the tail end of the fixing box by the cover plate. The fixing box has multiple threaded holes B, and the threaded holes B cooperate with the printed circuit board fixing screws to fix the printed circuit board.

[0007] The beneficial effects are: when the printed circuit board (PCB) is connected to the connector for signal transmission, it effectively secures and protects the PCB. The connector housing features a threaded design at the tail end for connection with the PCB's fixing and protective structure. The connector contact tail end is designed as a PCB pin for mating and soldering with the PCB, resulting in a more stable connection and providing some protection to the PCB, preventing it from shaking or falling off. This connector is a passive device; the connector tail end is not wired. The mounting box, sealing gasket, and cover plate work together to achieve a seal at the tail end, providing dust and moisture protection for the PCB. Furthermore, the PCB can be secured to the mounting box using PCB fixing screws for even more stable fixation.

[0008] The plug of the present invention includes a plug housing, a plug insulator disposed inside the plug housing, and a contact installed inside the plug insulator. A sealing wire is provided inside the plug housing near the rear end of the printed circuit board fixing and protection component. After the contact passes through the corresponding hole on the sealing wire, the sealing function is realized.

[0009] The beneficial effects are: the entire plug housing can be assembled quickly, and the end of the plug is sealed using a sealing body.

[0010] The plug connector of the present invention also includes a positioning plate, which is provided with insertion holes for the tail ends of multiple contacts to pass through. The insertion holes correspond one-to-one with the contacts and are fitted with clearance, so that the positioning plate can position, fix and straighten the multiple contacts.

[0011] The beneficial effects are: it straightens contact components that are skewed or offset at the tail end, making it easier for the tail end of the contact component to be aligned and connected with the printed circuit board, and enabling the positioning plate to perform one-time mating of multiple contact components.

[0012] The cover plate of the present invention is provided with a limiting boss, and the fixing box is provided with a limiting surface that cooperates with the limiting boss, which is used to limit the compression of the sealing gasket.

[0013] The beneficial effect is that the compression of the sealing ring is limited by the matching limiting surface and limiting boss, preventing the sealing gasket from being damaged due to excessive compression.

[0014] The printed circuit board of the present invention is provided with U-shaped mounting holes for the printing board fixing screws to pass through.

[0015] The beneficial effect is that the U-shaped mounting hole enables adjustable alignment and signal connection between the soldering holes on the printed circuit board and the pins at the end of the connector printed circuit board contact.

[0016] The multiple threaded holes A described in this invention are evenly distributed.

[0017] The beneficial effect is that it facilitates the adjustment and alignment between the printed circuit board and the pins of the connector printed circuit board.

[0018] The printed circuit board of the present invention is provided with an interlocking area and a device arrangement area, wherein the device arrangement area integrates signal processing elements and / or storage elements.

[0019] The beneficial effects are: the printed circuit board integrates signal processing or storage components, which can be used to read signals on flying objects. After the flying object lands and is recovered, the product of this invention can be removed and placed on a reading device to read flight data.

[0020] The device arrangement area described in this invention is an annular surface, and there is a space between the annular surface and the cover plate for heat dissipation of the device.

[0021] The beneficial effect is that by utilizing the space between the annular surface and the cover plate, the devices installed in the device arrangement area can be quickly cooled, thereby extending the service life of the installed devices.

[0022] The printed circuit board of the present invention has a recessed area in the center to form an interlocking area, and the tail end of the contact element is inserted into the solder hole of the interlocking area.

[0023] The beneficial effects are: the recessed interlocking area prevents the tail end of the contact piece from touching the cover plate and provides welding space, avoiding the impact on the outer component arrangement area during welding. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is an exploded structural diagram of the present invention;

[0026] Figure 3 This is a diagram of the plug structure of the present invention;

[0027] Figure 4 This is an exploded view of the printed circuit board fixing and protection components of the present invention;

[0028] Figure 5 This is a cross-sectional view of the printed circuit board fixing and protection components of the present invention;

[0029] Figure 6 This is a schematic diagram of the structure of the fixing box of the present invention;

[0030] Figure 7 This is a schematic diagram of the printed circuit board structure of the present invention;

[0031] In the diagram: 1. Plug, 2. Printed circuit board, 3. Printed circuit board fixing and protection components, 21. Mating area, 22. Component arrangement area, 101. Plug housing, 102. Plug insulator, 103. Contact, 104. Sealing body, 201. U-shaped mounting hole, 301. Fixing box, 301-1. Threaded structure, 301-2. Threaded hole A, 301-3. Threaded hole B, 301-4. Limiting surface, 302. Printed circuit board fixing screw, 303. Sealing washer, 304. Cover plate fixing screw, 305. Cover plate, 305-1. Limiting boss, 306. Positioning plate, 306-1. Socket. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0033] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0034] The structures, proportions, sizes, etc., illustrated in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0035] like Figures 1-7 As shown, a plug connector with printed circuit board fixing and protection components is disclosed. The connector is essentially a passive device, and no wiring is connected to the connector tail end. The plug connector includes a plug 1, a printed circuit board 2, and a printed circuit board fixing and protection component 3. The structure of the plug 1 is not limited, and the mounting method of the plug 1 and the contact is not limited. The structure of the contact for connecting with the printed circuit board 2 adopts a printed circuit board pin, so that the tail end of the contact 103 in the plug 1 is mated and soldered to the printed circuit board 2.

[0036] like Figure 6As shown, the printed circuit board fixing and protection component 3 is wrapped around the outside of the printed circuit board 2 and is detachably connected to the tail end of the plug 1. The printed circuit board fixing and protection component 3 includes a fixing box 301, a printed circuit board fixing screw 302, a sealing washer 303, a cover plate fixing screw 304 and a cover plate 305. The head of the fixing box 301 is provided with a threaded structure 301-1, which can be an external thread or an internal thread. The corresponding tail end of the plug housing is provided with a matching threaded structure. The end face of the fixed box 301 has multiple threaded holes A301-2. The cover plate 305 and the sealing washer 303 have corresponding through holes. The sealing washer 303 is installed between the fixed box 301 and the cover plate 305. The cover plate fixing screw 304 passes through the cover plate 305 and the sealing washer 303 and is installed in conjunction with the threaded hole A301-2 to achieve the sealing and fixing of the end of the fixed box 301 by the cover plate 305. The fixed box 301 has multiple threaded holes B301-3. The threaded holes B301-3 are blind holes, so that there are no openings on the surface of the fixed box 301. The threaded holes B301-3 are used in conjunction with the printed circuit board fixing screw 302 to fix the printed circuit board 2.

[0037] like Figure 2 As shown, the plug connector also includes a positioning plate 306. The positioning plate 306 is provided with a socket 306-1 for inserting the tail ends of multiple contacts. The socket 306-1 corresponds to the contacts one by one with clearance fit, so that the positioning plate 306 positions the multiple contacts. This positioning has the functions of positioning and protection for the contacts. By using the positioning plate to position, fix and straighten the tail ends of the contacts, the position is determined when mating with the printed circuit board, which is not easy to deform and makes it easier to align and connect. Specifically, the plug 1 includes a plug housing 101, a plug insulator 102 disposed within the plug housing 101, and a contact 103 installed within the plug insulator. A sealing body 104 is provided inside the plug housing 101 near the rear end of the printed circuit board fixing and protection component 3. The contact 103 passes through the corresponding hole on the sealing body 104 to achieve a sealing function. The positioning plate 306 is located axially between the sealing body 104 and the printed circuit board 2. Since the tail end of the contact protrudes backward beyond the long axial length of the sealing body, and due to the large number of contacts, if a small number of contacts have slight radial offset such as slight skew at the tail end, the contacts may not be able to smoothly connect with all the solder holes on the printed circuit board, making it difficult to install the printed circuit board. The positioning plate 306 and each contact are fitted with a small clearance to straighten those contacts with skewed or offset tail ends, so that the printed circuit board and a large number of contacts can be mated together at one time.

[0038] like Figure 6As shown, the cover plate 305 is provided with a limiting boss 305-1, and the fixing box 301 is provided with a limiting surface 301-4 that mates with the limiting boss 305-1, used to limit the compression of the sealing gasket 303. The shapes of the limiting boss 305-1 and the limiting surface 301-4 are matched, preferably circular, and the cross-section of the limiting surface 301-4 is L-shaped, which means that the outer side and end face of the limiting boss 305-1 are in contact with the limiting surface 301-4, extending into the fixing box 301, and have a certain sealing effect. The limiting structure designed for the fixing box 301 and the cover plate 305 is to ensure alignment between the cover plate 305 and the fixing box 301 when the cover plate 305 is installed, and at the same time to limit the compression of the sealing gasket 303, preventing the sealing gasket 303 from being over-compressed and damaged.

[0039] like Figure 7 As shown, the printed circuit board 2 is provided with a U-shaped mounting hole 201 through which the printed circuit board fixing screw 302 passes. The U-shaped mounting hole mates with multiple threaded holes B301-3, which can not only fix the printed circuit board, but also facilitate the adjustment and insertion between the printed circuit board 2 and the printed circuit board pins of the contact element.

[0040] like Figure 6 As shown, multiple threaded holes A301-2 are evenly distributed, which facilitates the adjustment and alignment between the printed circuit board 2 and the printed circuit board pins of the contact.

[0041] like Figure 7 As shown, the printed circuit board 2 has a mating area 21 and a device arrangement area 22. The device arrangement area 22 is an annular surface that integrates signal processing elements and / or storage elements. This annular surface is spaced apart from the cover plate 305 to provide heat dissipation space or gaps for the devices. In this embodiment, radially, the mating area 21 is located inside the device arrangement area 22. After the storage elements are arranged, since the storage elements have a certain height, the device arrangement area is raised towards the rear end of the plug connector, roughly forming a shape like... Figure 1 In the state shown, printed circuit board 2 is a flat PCB board. When the plug connector is working, it can be connected to the socket connector on the flying object, and can read the data signals during flight. The data is stored according to the electrical signals fed back to printed circuit board 2 by contact 103. After the flying object lands and is recovered, the product of this invention can be removed and placed on the reading device to read the flight data.

[0042] Alternatively, in another embodiment, the central area of ​​the printed circuit board 2 is recessed to form the aforementioned mating area 21 in the central area of ​​the printed circuit board. The tail end of the contact is inserted into the mating area 21 and welded to the corresponding solder hole in the mating area 21 to achieve electrical connection. All solder holes on the printed circuit board 2 are located in the mating area. The recessed mating area can prevent the tail end of the contact from approaching or touching the cover plate 305, while providing welding space between the contact and the solder hole. Furthermore, since there is a height difference in the axial direction between the device arrangement area and the welding area of ​​the contact in this embodiment, the distance between the contact and the electronic components on the device arrangement area is increased, which is beneficial to the heat dissipation of the contact and electronic components, which are both heat-generating elements, and to avoid the superposition and mutual influence of their heat. In addition, it is also convenient to perform potting treatment in the recessed mating area to improve the stability of the contact solder joint and the sealing of the connector.

[0043] The above are merely preferred embodiments of the present invention and are not intended to limit or restrict the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection declared by the present invention.

Claims

1. A plug connector with printed circuit board fixing and protection components, comprising a plug (1), a printed circuit board (2), and printed circuit board fixing and protection components (3), characterized in that: The contact end inside the plug (1) is soldered to the printed circuit board (2). The printed circuit board fixing and protection component (3) is wrapped around the outside of the printed circuit board (2) and is detachably connected to the end of the plug (1). The printed circuit board fixing and protection component (3) includes a fixing box (301), a printed circuit board fixing screw (302), a sealing washer (303), a cover plate fixing screw (304), and a cover plate (305). The head of the fixing box (301) is provided with a threaded structure (301-1), and its tail end face is provided with multiple threaded holes A (301-1). 1-2), a sealing washer (303) is installed between the fixing box (301) and the cover plate (305). The cover plate fixing screw (304) passes through the cover plate (305) and the sealing washer (303) and is installed in conjunction with the threaded hole A (301-2) to achieve the sealing and fixing of the cover plate (305) to the tail end of the fixing box (301). The fixing box (301) is provided with multiple threaded holes B (301-3). The threaded holes B (301-3) are used in conjunction with the printed circuit board fixing screw (302) to fix the printed circuit board (2). The plug (1) includes a plug housing (101), a plug insulator (102) disposed inside the plug housing (101), and a contact (103) installed inside the plug insulator. A sealing body (104) is provided inside the plug housing (101) near the rear end of the printed circuit board fixing and protection component (3). The contact (103) passes through the corresponding hole on the sealing body (104) to achieve the sealing function. The plug connector also includes a positioning plate (306), which has a socket (306-1) for inserting the tail ends of multiple contacts. The socket (306-1) and the contacts are fitted with a clearance fit, so that the positioning plate (306) can position, fix and straighten the multiple contacts.

2. A plug connector with printed circuit board fixing and protection components as described in claim 1, characterized in that: The cover plate (305) is provided with a limiting boss (305-1), and the fixing box (301) is provided with a limiting surface (301-4) that cooperates with the limiting boss (305-1) to limit the compression of the sealing gasket (303).

3. A plug connector with printed circuit board fixing and protection components as described in claim 1, characterized in that: The printed circuit board (2) is provided with U-shaped mounting holes (201) for the printed circuit board fixing screws (302) to pass through.

4. A plug connector with printed circuit board fixing and protection components as described in claim 1, characterized in that: The multiple threaded holes A (301-2) are evenly distributed.

5. A plug connector with printed circuit board fixing and protection components as described in claim 1, characterized in that: The printed circuit board (2) is provided with an interlocking area (21) and a device arrangement area (22), and the device arrangement area (22) integrates signal processing elements and / or storage elements.

6. A plug connector with printed circuit board fixing and protection components as described in claim 5, characterized in that: The device arrangement area (22) is an annular surface, and there is a space between the annular surface and the cover plate (305) for heat dissipation of the device.

7. A plug connector with printed circuit board fixing and protection components as described in claim 5, characterized in that: The printed circuit board (2) has a recessed area in the center to form a mating area (21), and the tail end of the contact (103) is inserted into the solder hole of the mating area (21).

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