Embedded network card device

Abstract

The utility model discloses an embedded network card device, which comprises a network card box and an interface, the network card box is connected with the interface through a buffer mechanism, the buffer mechanism comprises a fixed column II, the top end of the fixed column II is fixedly connected with a connecting column, one side of the connecting column is movably connected with a connecting plate, and one end of the connecting plate far away from the connecting column is movably connected with a movable column. According to the utility model, through the cooperative use of the movable column and the second spring, when the interface is impacted by an external force, the movable column drives the connecting column to deflect through the connecting plate, and the second spring is pressed to deform so as to buffer the impact force; the moving shaft and the third fixing column limit the displacement range of the moving column, excessive deformation is prevented, when external force acts on the interface, the first spring is compressed in the axial direction of the first fixing column, when the network card is used for a vehicle, welding spot loosening or poor interface contact caused by vibration is avoided, and stable data transmission is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of network card technology, specifically to an embedded network card device. Background Technology

[0002] An embedded network interface card (NIC) is a network card designed for networking in embedded systems. It is an embedded product developed to connect various terminals to a local area network (LAN). The NIC has a built-in embedded operating system and TCP / IP protocol stack, and can independently handle TCP / IP and Ethernet protocols. Traditional embedded NICs are divided into boards installed on large devices such as host computers and portable wireless NICs, with wireless NICs primarily used in a push-to-open manner.

[0003] For example, CN218450143U discloses an embedded network card device, relating to the field of embedded network card technology. It addresses the problem that existing push-in / out network card mechanisms often have an open front end, making them prone to water ingress, while adding a cover prevents effective sliding in / out operation, causing inconvenience to users. The embedded network card mechanism contains a network card body, with mounting brackets on both sides and a plug-in terminal at the front end.

[0004] This patent makes it easy for users to plug in the network card through the mounting bracket, and it can also improve the protection of the front end of the network card mechanism when it is placed in daily use. However, when the network card is used in a vehicle, the shaking of the vehicle often occurs, and the interface and network card may become loose due to vibration or poor contact of the interface, which will lead to unstable data transmission. Utility Model Content

[0005] The purpose of this utility model is to provide an embedded network card device to solve the problem mentioned in the background art that when a network card is used in a vehicle, the frequent shaking of the vehicle can cause the solder joints between the interface and the network card to loosen or the interface to make poor contact, resulting in unstable data transmission.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to an embedded network card device, comprising a network card box and an interface:

[0008] The network card box and the interface are connected by a buffer mechanism;

[0009] The buffer mechanism includes a second fixed column, a connecting column fixedly connected to the top of the second fixed column, a connecting plate movably connected to one side of the connecting column, a movable column movably connected to the end of the connecting plate away from the connecting column, a second spring fixedly connected to one side of the movable column, a movable shaft fixedly disposed in the inner cavity of the second spring, the movable shaft being disposed in the inner cavity of the movable column, and a third fixed column fixedly connected to the outer side of the movable shaft, the third fixed column being closer to the edge of the movable shaft than the movable column.

[0010] Furthermore, the buffer mechanism also includes a rubber layer, the inner cavity of which is fixedly connected to a polyurethane layer, the polyurethane layer is connected to the network card box through the rubber layer, and the rubber layer is connected to the interface through the polyurethane layer.

[0011] Furthermore, the buffer mechanism also includes a fixed post, the bottom end of which is fixedly connected to a spring. Three sets of springs are symmetrically arranged, and the three sets of symmetrically arranged springs are connected to the polyurethane layer through the fixed post. The fixed post is connected to the outer surface of the interface through the spring.

[0012] Furthermore, the bottom end of the second fixed column is embedded in the groove of the network card box and fixed with bolts. The connecting column and the second fixed column are movably connected by a hinge. The two ends of the connecting plate are respectively hinged to the connecting column and the movable column by pins.

[0013] Furthermore, one end of the second spring is welded to the inner wall of the movable column, and the other end is fixedly connected to the outer side of the moving shaft through the third fixed column. The moving shaft passes through the inner cavity of the movable column and its axial displacement is restricted by the limiting ring.

[0014] Furthermore, the top of the first fixing post is bonded and fixed to the polyurethane layer, and the spring is set at the bottom of the first fixing post and connected to the outer surface of the interface through threaded fasteners. The three sets of the first springs are arranged in a ring array.

[0015] Furthermore, a circuit board is fixedly installed inside the network card box, and the network card box is connected to the pins of the interface through the circuit board.

[0016] This utility model has the following beneficial effects:

[0017] I. This utility model is equipped with a buffer mechanism. When the interface is impacted by an external force, the movable column drives the connecting column to deflect through the connecting plate. The second spring is compressed and deformed to buffer the impact force. The moving shaft and the third fixed column limit the displacement range of the movable column to prevent excessive deformation. When an external force is applied to the interface, the first spring is compressed along the axial direction of the first fixed column. When the moving shaft slides in the inner cavity of the movable column, the limiting ring limits its displacement range to ensure that the second spring is always in the effective elastic deformation range and avoids plastic deformation. Through the cooperation between the movable column and the second spring, when the network card is used in a vehicle, it avoids loose solder joints or poor interface contact caused by vibration, and ensures stable data transmission.

[0018] II. Based on the above-mentioned beneficial effects, a polyurethane layer and a rubber layer are also provided. The polyurethane layer serves as an intermediate layer to disperse stress, while the rubber layer absorbs high-frequency micro-vibrations through deformation. At the same time, the snap-fit ​​structure maintains a tight fit with the joint. The ring-distributed springs compress or rebound synchronously to ensure that the joint can obtain a uniform buffering effect when subjected to force in any direction. The network card box provides shielding protection for the circuit board, the soldered connection ensures electrical stability, and the buffer mechanism isolates external vibrations from interfering with the circuit board. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0021] Figure 2 This is a schematic diagram of the rubber layer connection of the buffer mechanism of this utility model;

[0022] Figure 3 This is a schematic diagram of the connection of the two fixing columns of the buffer mechanism of this utility model;

[0023] Figure 4 This utility model Figure 3 Enlarged connection diagram at point A in the middle;

[0024] Figure 5 This is a schematic diagram of the connection of the spring two in the buffer mechanism of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] In the diagram: 1. Network card box; 2. Interface; 3. Buffer mechanism; 31. Rubber layer; 32. Polyurethane layer; 33. Fixed post one; 34. Spring one; 35. Fixed post two; 36. Connecting post; 37. Connecting plate; 38. Movable post; 39. Spring two; 310. Moving shaft; 311. Fixed post three. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0029] Please see Figure 1-5 As shown, this utility model is an embedded network card device, including a network card box 1 and an interface 2:

[0030] The network card box 1 and interface 2 are connected via a buffer mechanism 3;

[0031] The buffer mechanism 3 includes a second fixed column 35, a connecting column 36 fixedly connected to the top of the second fixed column 35, a connecting plate 37 movably connected to one side of the connecting column 36, a movable column 38 movably connected to the end of the connecting plate 37 away from the connecting column 36, a second spring 39 fixedly connected to one side of the movable column 38, a movable shaft 310 fixedly installed in the inner cavity of the second spring 39, the movable shaft 310 is installed in the inner cavity of the movable column 38, and a third fixed column 311 fixedly connected to the outer side of the movable shaft 310, the third fixed column 311 being closer to the edge of the movable shaft 310 than the movable column 38;

[0032] Through the coordinated design of fixed post 35, connecting post 36, connecting plate 37, movable post 38 and spring 39, the buffer mechanism 3 can effectively absorb external impact force, avoid damage caused by rigid connection between network card box 1 and interface 2, and ensure the stability of signal transmission.

[0033] The buffer mechanism 3 also includes a fixed post 33, and a spring 34 is fixedly connected to the bottom end of the fixed post 33. Three sets of springs 34 are symmetrically arranged. The three sets of symmetrically arranged springs 34 are connected to the polyurethane layer 32 through the fixed post 33. The fixed post 33 is connected to the outer surface of the interface 2 through the springs 34.

[0034] Three sets of symmetrically distributed springs 34 are connected to the polyurethane layer 32 through fixed columns 33, forming a multi-directional buffer protection, further dispersing stress, preventing the interface 2 from breaking due to single-point stress, and enhancing the seismic performance of the overall structure.

[0035] The bottom end of the fixed post 35 is embedded in the groove of the network card box 1 and fixed with bolts. The connecting post 36 is movably connected to the fixed post 35 by a hinge. The two ends of the connecting plate 37 are respectively hinged to the connecting post 36 and the movable post 38 by pins.

[0036] The hinged design allows the connecting plate 37 to rotate flexibly to adapt to impact forces from different directions, preventing the mechanical structure from jamming. At the same time, the bolted fixing post 35 ensures the overall connection is robust.

[0037] One end of spring 2 39 is welded to the inner wall of movable column 38, and the other end is fixedly connected to the outer side of movable shaft 310 through fixed column 311. Movable shaft 310 passes through the inner cavity of movable column 38 and its axial displacement is restricted by limiting ring.

[0038] Spring 2 39 is double-fixed by welding and fixing post 3 311, combined with the limiting ring design of moving shaft 310, to prevent spring dislocation or excessive stretching and extend service life.

[0039] Working principle: When interface 2 is impacted by an external force, the movable column 38 drives the connecting column 36 to deflect through the connecting plate 37. The second spring 39 is compressed and deformed to buffer the impact force. The moving shaft 310 and the fixed column 311 limit the displacement range of the movable column 38 to prevent excessive deformation. When the external force acts on interface 2, the first spring 34 is compressed along the axial direction of the first fixed column 33. The polyurethane layer 32 absorbs energy through elastic deformation, and the rubber layer 31 helps to disperse lateral vibration, achieving multi-dimensional buffering. When the impact force direction changes, the connecting plate 37 rotates around the pin shaft, driving the movable column 38 to adjust its position. The second spring 39 is adaptively compressed or stretched according to the force direction to achieve dynamic buffering. When the moving shaft 310 slides in the inner cavity of the movable column 38, the limiting ring limits its displacement range to ensure that the second spring 39 is always in the effective elastic deformation range and avoids plastic deformation. Through the cooperation between the movable column 38 and the second spring 39, when the network card is used in the vehicle, it avoids loose solder joints or poor contact of interface 2 due to vibration, ensuring stable data transmission.

[0040] This step, through the cooperation between the movable column 38 and the spring 39, ensures stable data transmission by preventing the solder joints from loosening or the interface 2 from poor contact due to vibration when the network card is used in a vehicle.

[0041] Please see Figure 1-5 As shown, this embodiment, based on the above embodiment, further includes a rubber layer 31:

[0042] The buffer mechanism 3 also includes a rubber layer 31, and a polyurethane layer 32 is fixedly connected to the inner cavity of the rubber layer 31. The polyurethane layer 32 is connected to the network card box 1 through the rubber layer 31, and the rubber layer 31 is connected to the interface 2 through the polyurethane layer 32.

[0043] The composite structure of rubber layer 31 and polyurethane layer 32 has both elasticity and wear resistance, which can absorb high-frequency vibration and reduce frictional loss between network card box 1 and connector.

[0044] The top of the fixed post 33 is bonded and fixed to the polyurethane layer 32, and the spring 34 is sleeved on the bottom of the fixed post 33 and connected to the outer surface of the interface 2 through threaded fasteners. The three sets of springs 34 are arranged in a ring array.

[0045] The three sets of springs 34 are arranged in a ring array to evenly distribute the force on the joint, avoid local fatigue damage caused by uneven loading, and improve the overall structural reliability.

[0046] A circuit board is fixedly installed inside the cavity of the network card box 1, and the network card box 1 is connected to the pins of the interface 2 through the circuit board;

[0047] The circuit board is directly connected to the connector pins by soldering, reducing signal transmission loss. At the same time, the internal cavity fixing design of the network card box 1 protects the circuit board from physical damage.

[0048] Working principle: The polyurethane layer 32 acts as an intermediate layer to disperse stress, the rubber layer 31 absorbs high-frequency micro-vibrations through deformation, and at the same time maintains a tight fit with the joint through the snap-fit ​​structure. The ring-distributed springs 34 compress or rebound synchronously to ensure that the joint can obtain a uniform buffering effect when subjected to force in any direction. The network card box 1 provides shielding protection for the circuit board, the soldered connection ensures electrical stability, and the buffer mechanism 3 isolates the interference of external vibrations on the circuit board.

[0049] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An embedded network card device, characterized by, Includes network card box (1) and interface (2): The network card box (1) and the interface (2) are connected by a buffer mechanism (3); The buffer mechanism (3) includes a second fixed column (35), a connecting column (36) is fixedly connected to the top of the second fixed column (35), a connecting plate (37) is movably connected to one side of the connecting column (36), a movable column (38) is movably connected to the end of the connecting plate (37) away from the connecting column (36), a second spring (39) is fixedly connected to one side of the movable column (38), a movable shaft (310) is fixedly provided in the inner cavity of the second spring (39), the movable shaft (310) is provided in the inner cavity of the movable column (38), a third fixed column (311) is fixedly connected to the outer side of the movable shaft (310), and the third fixed column (311) is closer to the edge of the movable shaft (310) than the movable column (38).

2. The embedded network card device of claim 1, wherein: The buffer mechanism (3) also includes a rubber layer (31), the inner cavity of which is fixedly connected to a polyurethane layer (32), the polyurethane layer (32) is connected to the network card box (1) through the rubber layer (31), and the rubber layer (31) is connected to the interface (2) through the polyurethane layer (32).

3. The embedded network card device of claim 1, wherein: The buffer mechanism (3) also includes a fixed post (33), and a spring (34) is fixedly connected to the bottom end of the fixed post (33). Three sets of springs (34) are symmetrically arranged. The three sets of springs (34) are connected through the fixed post (33) and the polyurethane layer (32). The fixed post (33) is connected to the outer surface of the interface (2) through the springs (34).

4. The embedded network card device of claim 1, wherein: The bottom end of the fixed column 2 (35) is embedded in the groove of the network card box (1) and fixed by bolts. The connecting column (36) is movably connected to the fixed column 2 (35) by a hinge. The two ends of the connecting plate (37) are respectively hinged to the connecting column (36) and the movable column (38) by pins.

5. The embedded network card device of claim 1, wherein: One end of the second spring (39) is welded to the inner wall of the movable column (38), and the other end is fixedly connected to the outside of the moving shaft (310) through the third fixed column (311). The moving shaft (310) passes through the inner cavity of the movable column (38) and its axial displacement is restricted by the limiting ring.

6. The embedded network card device of claim 3, wherein: The top of the first fixed post (33) is bonded to the polyurethane layer (32), and the first spring (34) is sleeved on the bottom of the first fixed post (33) and connected to the outer surface of the interface (2) through threaded fasteners. The three sets of the first springs (34) are arranged in a ring array.

7. The embedded network card device of claim 1, wherein: The inner cavity of the network card box (1) is fixedly provided with a circuit board, and the network card box (1) is connected to the pins of the interface (2) through the circuit board.

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