Waterproof and dustproof aviation connector

Abstract

The invention relates to the technical field of internet of things product adapters, and discloses a waterproof and dustproof aviation connector which comprises a shell and a PCBA board, the PCBA board is arranged in the shell in a sleeved mode, the PCBA board is at least provided with an SIM card seat, an FPC flat cable seat, an entity key and a TYPE-C interface, one side of the shell is provided with a rear cover, the other side of the shell is provided with a plastic waterproof cover, and the shell is provided with a waterproof cover. The plastic waterproof cover is provided with a linkage piece, and the linkage piece extends to the PCBA board and is in contact with the entity key. Through ingenious combination of the FPC flat cable seat and the PCBA board, the SIM card interface and the Type-C interface can be led out at the same time and integrated together, only one opening needs to be occupied, product design is facilitated, research and development cost and production cost are also saved, outgoing lines of the SIM card seat and the Type-C seat are respectively connected in parallel with the TVS diodes to be connected to the FPC flat cable seat, and the TVS diodes are connected to the FPC flat cable seat. Therefore, the circuit is prevented from being damaged by human body static electricity possibly introduced when the SIM card or the Type-C data line is plugged or unplugged.

Description

Technical Field

[0001] The present invention relates to the technical field of adapters for Internet of Things products, and in particular to a waterproof and dustproof aviation adapter. Background Art

[0002] With the development of Internet of Things technology, some devices need to lead out the SIM card and USB debugging interface from the mainboard to the outer casing to facilitate debugging during installation and subsequent maintenance, and avoid unnecessary damage to the equipment due to removing the cover.

[0003] Among the existing products, there are currently no adapters that integrate the SIM card holder and USB interface. For the SIM card, the card holder is currently mostly led out with an FPC flexible circuit board, but there is no shell protection and it is only suitable for a stable environment. For the USB interface, it is mainly led out with a Type-A or Type-C connector. In IoT products, the Type-C interface has more usage scenarios because it occupies a small space and supports reversible insertion. There are also mature products on the market.

[0004] In products that need to bring out the SIM card interface and the Type-C interface at the same time, if these two interfaces are brought out separately, firstly, two shell openings will be required, which is not conducive to the design of products with few shell openings or insufficient space; secondly, the SIM card adapter needs to be redesigned, and the Type-C interface adapter needs to be designed or purchased, which increases the product's R&D expenses and production costs. Summary of the invention

[0005] The purpose of the present invention is to provide a waterproof and dustproof aviation connector, which can simultaneously lead out a SIM card interface and a Type-C interface through the ingenious combination of an FPC cable holder and a PCBA board, aiming to solve the problem that in the prior art, the two interfaces are led out separately. Firstly, two shell openings need to be occupied, which is not conducive to the design of products with few shell openings or insufficient space. Secondly, the SIM card adapter needs to be redesigned, and an adapter for the Type-C interface needs to be designed or purchased, which increases the R&D cost and production cost of the product.

[0006] The present invention is implemented in this way: a waterproof and dustproof aviation connector comprises a shell and a PCBA board, wherein the PCBA board is sleeved in the shell, and at least one SIM card holder, an FPC cable holder, a physical button, and a TYPE-C interface are arranged on the PCBA board; a back cover is arranged on one side of the shell, and a plastic waterproof cover is arranged on the other side; a linkage member is arranged on the plastic waterproof cover, and the linkage member extends to the PCBA board and contacts the physical button.

[0007] Furthermore, the outgoing lines of the SIM card holder and the Type-C interface holder are respectively connected to the FPC cable holder in parallel with TVS diodes to prevent the human body static electricity from damaging the circuit when inserting and removing the SIM card or Type-C data.

[0008] Furthermore, a card tray is provided on the SIM card holder, and the card tray is detachably buckled with the SIM card, so that the SIM card can be easily inserted and removed during installation, debugging and maintenance.

[0009] Furthermore, the physical button is directly connected to the FPC cable holder, which occupies less space and has a stable connection, and components with required functions can be arranged on the PCBA board.

[0010] Furthermore, an internal thread is arranged on the inner wall of the plastic waterproof cover, and an external thread matching the internal thread is arranged on the outer wall of the shell, and the external thread extends to the fixing sleeve of the shell.

[0011] Furthermore, the fixing sleeve is integrally formed with the outer shell, and screw holes are arranged on the outer edges of the fixing sleeve, fixing bolts are arranged in the screw holes, and the fixing bolts are used to fix the aviation joint on the external device.

[0012] Furthermore, a waterproof silicone pad is attached to one side of the fixing sleeve, and the fixing bolt passes through the waterproof silicone pad to achieve a sealed and fitted connection between the waterproof silicone pad and the fixing sleeve.

[0013] Furthermore, the back cover includes an external connecting part and an internal sealing part, the external connecting part is in conflict with the side wall of the outer shell, the outer wall of the inner sealing part realizes an interference fit with the inside of the outer shell, a groove is provided on one side of the inner sealing part, and after the back cover and the outer shell are sealed and fixed, the PCBA board extends into the groove.

[0014] Furthermore, two parallel limiting columns are arranged on both sides of the inner wall of the shell, and a positioning groove is formed between the limiting columns. The positioning groove enables the two sides of the PCBA board to abut against each other and complete fixation.

[0015] Furthermore, limiting grooves are provided on both sides of the inner sealing portion of the rear cover, and the limiting grooves extend into the limiting pillars when the rear cover is embedded in the shell until the bottom wall of the limiting grooves contacts the limiting pillars to complete the sealing and fixing of the rear cover on the shell.

[0016] Compared with the prior art, the waterproof and dustproof aviation joint provided by the present invention has the following beneficial effects:

[0017] 1. Through the ingenious combination of the FPC cable holder and the PCBA board, the SIM card interface and the Type-C interface can be brought out at the same time. If these two interfaces are brought out separately, two shell openings will be required, which is not conducive to the design of products with few shell openings or insufficient space. Secondly, the SIM card adapter needs to be redesigned, and the adapter of the Type-C interface needs to be designed or purchased, which increases the R&D cost and production cost of the product. If the two are integrated together, only one opening is required, which is convenient for product design and saves R&D cost and production cost;

[0018] 2. Connect the outgoing wires of the SIM card holder and Type-C holder to the FPC cable holder in parallel with TVS diodes to prevent the human body static electricity from damaging the circuit when plugging and unplugging the SIM card or Type-C data cable. The SIM card holder with a card tray can be used to facilitate the plugging and unplugging of the SIM card during installation, debugging and maintenance. The physical button is directly connected to the FPC cable holder, and the function can be designed on the device motherboard as required, such as setting it to conduct to a high level or conduct to a low level, which has high flexibility. The FPC cable holder is more suitable for use in occasions with small space such as aviation connectors because of its stable connection and small space occupation.

[0019] 3. During installation, this technical solution is installed from the back cover end into the opening of the device, and the fixing bolts around are tightened. At this time, the waterproof silicone pad is squeezed and will be close to the device and the aviation connector shell, which can achieve waterproof and dustproof of the device and the connector shell. After the installation is completed, tighten the plastic waterproof cover to achieve waterproof and dustproof of the connector, so that the product reaches the IP67 protection level;

[0020] 4. When working, this technical solution transfers the SIM card, TYPE-C interface and physical buttons to the main control board through the FPC cable holder. It is compatible with SIM cards, TYPE-C interfaces and buttons on one aviation connector, reducing the occupancy of the shell opening, making product research and development design smoother, and facilitating subsequent installation, debugging and maintenance inspection. At the same time, the shell reaches the IP67 protection level, which increases the reliability and safety of the equipment and makes the equipment have more applicable scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the waterproof and dustproof aviation joint proposed by the present invention;

[0022] Figure 2 This is a schematic cross-sectional structure diagram of the waterproof and dustproof aviation joint proposed by the present invention;

[0023] Figure 3 This is a schematic diagram of the explosion structure of the waterproof and dustproof aviation joint proposed by the present invention;

[0024] Figure 4for Figure 3 A schematic diagram of the structure enlargement of the A region in the middle;

[0025] Figure 5 This is a circuit distribution diagram of various components in the waterproof and dustproof aviation connector proposed by the present invention.

[0026] In the picture: 1-SIM card holder, 2-FPC cable holder, 3-physical buttons, 4-TYPE-C interface, 5-back cover, 6-waterproof silicone pad, 7-housing, 8-fixing bolts, 9-plastic waterproof cover, 10-PCBA board, 11-limiting column, 12-positioning slot. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] The implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0029] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0030] Reference Figure 1-4As shown, the waterproof and dustproof aviation connector includes a shell 7 and a PCBA board 10. The PCBA board 10 is sleeved in the shell 7. At least one SIM card holder 1, an FPC cable holder 2, a physical button 3, and a TYPE-C interface 4 are arranged on the PCBA board 10. A back cover 5 is arranged on one side of the shell 7, and a plastic waterproof cover 9 is arranged on the other side. A linkage piece is arranged on the plastic waterproof cover 9. The linkage piece extends to the PCBA board 10 and contacts the physical button 3. The linkage piece can select a deformable silicone sleeve. The plastic waterproof cover 9 is deformed by pressing downward, and finally the linkage piece and the physical button are connected. 3 are in contact. The technical solution can simultaneously lead out the SIM card interface and the Type-C interface through the ingenious combination of the FPC cable holder 2 and the PCBA board 10. If the two interfaces are led out separately, on the one hand, two openings of the shell 7 need to be occupied, which is not conducive to the design of products with few openings or insufficient space in the shell 7. On the other hand, the SIM card adapter needs to be redesigned, and the adapter of the Type-C interface 4 needs to be designed or purchased, which increases the R&D cost and production cost of the product. If the two are integrated together, only one opening needs to be occupied, which is convenient for product design and saves R&D cost and production cost.

[0031] In this city's example, the output lines of the SIM card holder 1 and the Type-C interface 4 are respectively connected in parallel with TVS diodes to the FPC cable holder 2 to prevent the human body static electricity introduced when plugging and unplugging the SIM card or Type-C data from damaging the circuit. The TVS diode absorbs human body static electricity, so that the circuit static electricity will not damage the circuit when plugging and unplugging the SIM card or Type-C data.

[0032] In this example, a card tray is provided on the SIM card holder 1, and the card tray and the SIM card are detachably connected, so that it is convenient to insert and remove the SIM card during installation, debugging and maintenance. The physical button 3 is directly connected to the FPC cable holder 2. The FPC cable holder 2 occupies less space and has a stable connection. Required functional layout components can be added on the PCBA board 10, such as adding a high level or a low level, which has high flexibility.

[0033] In the present example, an internal thread is provided on the inner wall of the plastic waterproof cover 9, and an external thread matching the internal thread is provided on the outer wall of the outer shell 7. The external thread extends to the fixing sleeve of the shell 7. The fixing sleeve and the outer shell 7 are integrally formed, and screw holes are provided on the outer edges of the fixing sleeve. Fixing bolts 8 are provided in the screw holes. The fixing bolts 8 realize the fixation of the aviation joint on the external equipment. A waterproof silicone pad 6 is attached to one side of the fixing sleeve, and the fixing bolts 8 penetrate the waterproof silicone pad 6 to realize the sealing and fitting connection between the waterproof silicone pad 6, the aviation joint and the external equipment.

[0034] In this example, the back cover 5 includes an external connection part and an internal sealing part. The external connection part abuts against the side wall of the outer shell 7, and the outer wall of the inner sealing part realizes interference fit with the inside of the outer shell 7. A groove is provided on one side of the inner sealing part. After the back cover 5 and the outer shell 7 are sealed and fixed, the PCBA board 10 extends into the groove. Two parallel limiting columns 11 are provided on both sides of the inner wall of the outer shell 7. A positioning groove 12 is formed between the limiting columns 11. The positioning groove 12 realizes that the two sides of the PCBA board 10 are abutted and fixed. Limiting grooves are provided on both sides of the inner sealing part of the back cover 5. When the back cover is embedded in the shell 7, the limit groove extends into the limit column 11 until the bottom wall of the limit groove contacts the limit column 11 to complete the sealing and fixing of the back cover 5 on the shell 7. During installation, the technical solution is installed into the device opening from the end of the back cover 5, and the fixing bolts 8 around it are tightened. At this time, the waterproof silicone pad 6 is squeezed and will fit tightly against the device and the aviation connector shell 7, so that the device and the connector shell 7 can be waterproof and dustproof. After the installation is completed, tighten the plastic waterproof cover 9 to achieve waterproof and dustproof of the connector, so that the product reaches the protection level of IP67.

[0035] This technical solution can simultaneously lead out the SIM card 1 interface and the Type-C interface 4 through the ingenious combination of the FPC cable holder and the PCBA board. If the two are integrated together, only one opening is needed, which is convenient for product design and saves R&D costs and production costs. The output lines of the SIM card holder 1 and the Type-C holder are connected to the FPC cable holder 2 in parallel with TVS diodes to prevent the human body static electricity that may be introduced when plugging and unplugging the SIM card or the Type-C data cable from damaging the circuit. The SIM card holder 1 with a card tray can be used to facilitate the plugging and unplugging of the SIM card during installation, debugging and maintenance. The physical button is directly connected to the FPC cable holder 2, and the function can be designed on the device motherboard as required, such as setting it to be connected to a high level or a low level, which has high flexibility; the FPC cable holder 2 is more suitable for use in occasions with small space such as aviation connectors because of its stable connection and small space occupation;

[0036] Reference Figure 5 As shown, the circuit schematic diagram of the PCBA board 10 connects the outgoing lines of the SIM card holder 1 and the Type-C holder to the FPC cable holder 2 in parallel with TVS diodes to prevent the human body static electricity from damaging the circuit when plugging and unplugging the SIM card or the Type-C data cable;

[0037] The SIM card interface circuit includes a ZIF connector and a SIM card. Both the ZIF connector and the SIM card include a reset signal pin CCRST, an input / output pin CCIO, a clock signal pin CCCLK, a positive power pin CCVCC and a negative power pin CCGND. The ZIF connector and the SIM card are connected to the same pins correspondingly. The ZIF connector also includes a ground pin GND, which is grounded.

[0038] The first end of the FPC cable holder 2 is electrically connected to the SIM card holder, and the second end of the FPC flexible cable is used to be electrically connected to the Type-C interface to achieve fixed distribution of the circuit on the PCBA board.

[0039] The TYPE-C interface 4 includes a TYPE-C connection unit, a USB-PD control unit, a main control unit, a video connection unit, and a power management unit, which are respectively connected to each other, wherein the TYPE-C unit includes a USBTYPE-C connection port and an AUXN / PSWAP conversion circuit; when the USBTYPE-C connection port is connected to an external device and a TYPE-C signal is input, the AUXN / PSWAP conversion circuit receives the signal and determines the insertion direction of the external device, and exchanges it at its output end as needed, so that the USBTYPE-C connection port is connected to the video connection unit and performs signal transmission;

[0040] The SIM card holder 1 with a card tray can be used to conveniently insert and remove the SIM card during installation, debugging and maintenance. The physical button 3 is directly connected to the FPC cable holder 2, and the function can be designed on the device motherboard as required, such as setting it to be connected to a high level or a low level, which has high flexibility. The FPC cable holder 2 is more suitable for use in occasions with small space such as aviation connectors because of its stable connection and small space occupation.

[0041] When working, this technical solution transfers the SIM card, TYPE-C interface 4 and physical buttons to the main control board through the FPC cable holder 2. The SIM card, TYPE-C interface 4 and physical buttons 3 are compatible on one aviation connector, reducing the occupancy of the opening on the shell 7, making the product research and development design smoother, and also facilitating subsequent installation, debugging and maintenance inspection. At the same time, the shell reaches the protection level of IP67, which increases the reliability and safety of the equipment and makes the equipment have more applicable scenarios.

[0042] In this embodiment, the entire operation process can be controlled by a computer, and with the addition of a PLC, etc., automated operation control can be achieved. In each operation link, sensors can be set up to provide signal feedback to achieve sequential execution of steps. These are all common knowledge of current automated control and will not be described in detail in this embodiment.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A waterproof and dustproof aviation connector, comprising a housing and a PCBA board, wherein the PCBA board is sleeved in the housing, characterized in that: At least one SIM card holder, one FPC cable holder, one physical button, and one TYPE-C interface are arranged on the PCBA board. A back cover is arranged on one side of the shell, and a plastic waterproof cover is arranged on the other side. A linkage part is arranged on the plastic waterproof cover. The linkage part extends to the PCBA board and contacts the physical button.

2. The waterproof and dustproof aviation joint according to claim 1, characterized in that: The outgoing wires of the SIM card holder and the Type-C interface holder are respectively connected in parallel with TVS diodes to the FPC cable holder to prevent the human body static electricity from damaging the circuit when inserting and removing the SIM card or Type-C data.

3. The waterproof and dustproof aviation joint according to claim 2, characterized in that: The SIM card holder is provided with a card tray, and the card tray and the SIM card are detachably buckled, so that it is convenient to insert and remove the SIM card during installation, debugging and maintenance.

4. The waterproof and dustproof aviation joint according to claim 3, characterized in that: The physical button is directly connected to the FPC cable holder, which occupies less space and has a stable connection, and components with required functions can be arranged on the PCBA board.

5. The waterproof and dustproof aviation joint according to claim 4, characterized in that: The inner wall of the plastic waterproof cover is provided with an internal thread, the outer wall of the shell is provided with an external thread matched with the internal thread, and the external thread extends to the fixing sleeve of the shell.

6. The waterproof and dustproof aviation joint according to claim 5, characterized in that: The fixing sleeve is integrally formed with the outer shell, and screw holes are arranged on the outer edges of the fixing sleeve. Fixing bolts are arranged in the screw holes, and the fixing bolts are used to fix the aviation joint on the external device.

7. The waterproof and dustproof aviation joint according to claim 6, characterized in that: A waterproof silicone pad is attached to one side of the fixing sleeve, and the fixing bolt penetrates the waterproof silicone pad to achieve a sealed and attached connection between the waterproof silicone pad and the fixing sleeve.

8. The waterproof and dustproof aviation joint according to claim 7, characterized in that: The back cover includes an external connection part and an internal sealing part, the external connection part is in conflict with the side wall of the shell, the outer wall of the internal sealing part is interference fit with the inside of the shell, a groove is provided on one side of the internal sealing part, and after the back cover and the shell are sealed and fixed, the PCBA board extends into the groove.

9. The waterproof and dustproof aviation joint according to claim 8, characterized in that: Two parallel limiting columns are arranged on both sides of the inner wall of the shell, and a positioning groove is formed between the limiting columns. The positioning groove enables the two sides of the PCBA board to abut against each other and complete fixation.

10. The waterproof and dustproof aviation joint according to claim 9, characterized in that: Limiting grooves are arranged on both sides of the inner sealing part of the rear cover, and the limiting grooves extend into the limiting pillars when the rear cover is embedded in the shell, until the bottom wall of the limiting grooves contacts the limiting pillars to complete the sealing and fixing of the rear cover on the shell.

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