Anti-vibration SMP connector structure

Abstract

The utility model discloses an anti-vibration SMP connector structure, which comprises a buckle thread sleeve used for being connected with a butt joint port, and a radio frequency coaxial connector is concentrically arranged in the buckle thread sleeve. The anti-vibration SMP connector structure is provided with the buckle thread sleeve, so that better mechanical fixing force can be provided by utilizing a buckle structure; the connector can be effectively prevented from loosening or falling off in a vibration environment; and meanwhile, the buckle structure enables the connection between the connectors to be tighter, the contact resistance is relatively small, and stable transmission of signals and current can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of SMP connectors, in particular to a vibration-proof SMP connector structure. Background Art

[0002] Existing SMP connectors are directly connected through the male and female heads during blind mating, and lack a locking structure at the connection. In some application scenarios with strong vibrations such as automobiles and aerospace, the connectors are prone to loosening or falling off under vibration, thereby affecting the stability of the connection. At the same time, in order to facilitate connection, the outer shell of the docking point is designed as a petal-shaped structure to be compatible with installation dimension deviations and quickly achieve docking. However, it is also easy to cause unstable connection due to vibration and other reasons, affecting the normal transmission of signals. Utility Model Content

[0003] Technical purpose: In view of the shortcomings of the existing SMP connector installation structure, the utility model discloses an anti-vibration SMP connector structure that can improve the connection stability.

[0004] Technical solution: To achieve the above technical objectives, the present invention adopts the following technical solution:

[0005] A vibration-proof SMP connector structure includes a snap screw sleeve for connecting to a docking port, a radio frequency coaxial connector concentrically arranged in the snap screw sleeve, the radio frequency coaxial connector including an outer shell, a center conductor, an insulating medium, and a welding tail sleeve arranged on the side of the outer shell away from the docking port, the cable is connected to the center conductor after passing through the welding tail sleeve, the snap screw sleeve is provided with a limiting step at the other end opposite to the docking port, the outer shell is provided with a boss corresponding to the limiting step in the circumferential direction, a floating spring is provided between the boss and the end face of the limiting step, after the radio frequency connector is subjected to axial force, it floats along the expansion and contraction direction of the floating spring, and a second boss for limiting the end of the snap screw sleeve is provided on the welding tail sleeve.

[0006] Preferably, the side wall of the snap screw sleeve of the present invention is provided with a slot for engaging with the docking port, and a through slot matching the docking port is provided between the docking end face and the slot. The docking port enters the snap screw sleeve through the through slot, and the snap screw sleeve and the docking port are connected by cooperating with the slot through a pin provided on the side wall of the docking port.

[0007] Preferably, the card slot of the present invention adopts a V-shaped structure, and forms a space for the pin to move when the RF connector floats relative to the docking port through the card slot in the axial direction of the snap screw sleeve.

[0008] Preferably, the outer shell of the present invention is grooved along the axial direction on one end close to the docking port to form independent petal-shaped structures.

[0009] Preferably, the outer shell of the utility model is provided with a sway-stop ring outside the area where the petal-shaped structure is located. The sway-stop ring is sleeved on the outer shell, and an opening is provided on the side wall of the sway-stop ring. In the natural contraction state, the diameter of the sway-stop ring is smaller than the outer diameter of the outer shell in the corresponding area, exerting a radial contraction force on the outer shell.

[0010] Beneficial effects: The anti-vibration SMP connector structure of the present invention has the following beneficial effects:

[0011] 1. The present invention provides a snap-on screw sleeve and utilizes a snap-on structure to provide a good mechanical fixing force, which can effectively prevent the connector from loosening or falling off in a vibration environment; at the same time, the snap-on structure makes the connection between the connectors tighter, the contact resistance is relatively small, and the stable transmission of signals and currents can be ensured.

[0012] 2. The present invention utilizes a snap-fit ​​structure to visually determine the docking of the connectors, thereby improving installation and assembly efficiency.

[0013] 3. The utility model sleeves a sway-stop ring on the outside of the outer shell, and utilizes the radial contraction force generated by the sway-stop ring to improve the stability of signal transmission of the connector in a vibration environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0015] Figure 1 This is the overall structural diagram of the utility model;

[0016] Figure 2 This is a three-dimensional diagram of the buckle screw sleeve of the utility model;

[0017] Figure 3 This is a schematic diagram of the matching structure of the anti-sway ring and the outer shell of the utility model;

[0018] Among them, 1- snap screw sleeve, 2-outer shell, 3-center conductor, 4-insulating medium, 5-welding tail sleeve, 6-limiting step, 7-boss, 8-floating spring, 9-second boss, 10-slot, 11-through slot, 12-anti-shake ring. DETAILED DESCRIPTION

[0019] Reference will now be made in detail to the embodiments of the present disclosure, one or more examples of which are set forth herein below. Each embodiment and example is provided by way of explanation of the apparatus, composition, and materials of the present disclosure, rather than limitation. On the contrary, the following description provides a convenient illustration of exemplary embodiments for implementing the present disclosure. In fact, it will be clear to those skilled in the art that various modifications and variations can be made in the teachings of the present disclosure without departing from the scope or spirit of the present disclosure. For example, a feature shown or described as part of an embodiment may be used in conjunction with another embodiment to produce yet another embodiment.

[0020] like Figure 1-Figure 3 As shown, the utility model discloses an anti-vibration SMP connector structure, including a snap screw sleeve 1 for connecting to a docking port, a radio frequency coaxial connector is concentrically arranged in the snap screw sleeve 1, the radio frequency coaxial connector includes an outer shell 2, a center conductor 3, an insulating medium 4 and a welding tail sleeve 5 arranged on the side of the outer shell 2 away from the docking port, the cable is connected to the center conductor 3 after passing through the welding tail sleeve 5, the snap screw sleeve 1 is provided with a limiting step 6 at the other end opposite to the docking port, the outer shell 2 is provided with a boss 7 corresponding to the limiting step 6 in the circumferential direction, a floating spring 8 is provided between the boss 7 and the end face of the limiting step 6, after the radio frequency connector is subjected to axial force, it floats along the extension and contraction direction of the floating spring 8, and a second boss 9 for limiting the end of the snap screw sleeve 1 is provided on the welding tail sleeve 5.

[0021] After the connector is assembled, the elastic force exerted by the floating spring 8 causes the end of the snap screw sleeve 1 to abut against the second boss 9, thereby ensuring the compactness of the structure, so that the docking end of the RF connector can still be blindly plugged into the docking port, and has axial floating capability, is compatible with dimensional deviations, and reduces connection difficulty.

[0022] Specifically, the side wall of the snap screw sleeve 1 of the utility model is provided with a card slot 10 for engaging with the docking port, and the snap screw sleeve 1 is provided with a through groove 11 matching the docking port between the docking end face and the card slot 10. The docking port enters the snap screw sleeve 1 through the through groove 11, and the snap screw sleeve 1 and the docking port are connected by cooperating with the card slot 10 through the pin provided on the side wall of the docking port; the docking port enters from the through groove 11, and when it reaches the area where the card slot 10 is located, the pin and the through groove 11 are staggered in the circumferential direction by rotation, thereby realizing locking and fixing of the connection, and being able to ensure the stability of the connector docking and signal transmission in a vibration environment.

[0023] In addition, in order to cooperate with the axial floating of the RF connector, in the embodiment of the present invention, as a preference, the card slot 10 of the present invention adopts a V-shaped structure, and the card slot 10 forms a space for the pin to move when the RF connector floats relative to the docking port in the axial direction of the snap screw sleeve 1, so that the RF connector can be adjusted in position within a certain axial range to meet the connection requirements of docking ports with different installation precision.

[0024] The outer shell 2 of the utility model is close to one end of the docking port, and is grooved along the axial direction on the circumference to form independent petal structures. The conductor of the docking port can smoothly enter the outer shell and be connected with the center conductor 3. In order to further improve the shockproof performance of the structure, the outer shell 2 of the utility model is provided with a anti-sway ring 12 outside the area where the petal structure is located. The anti-sway ring 12 is sleeved on the outer shell 2, and the side wall of the anti-sway ring 2 is provided with an opening. In the natural contraction state, the diameter of the anti-sway ring 12 is smaller than the outer diameter of the outer shell 2 in the corresponding area, and a radial contraction force is applied to the outer shell 2. In the case of vibration, the relative offset of the docking end is reduced, and the stability of the connection is improved.

[0025] By using the SMP connector structure of the present invention, the stability of the connector connection can be guaranteed in a complex vibration environment, thereby meeting the use requirements of extremely demanding high-power or high-frequency signal transmission scenarios.

Claims

1. A vibration-proof SMP connector structure, characterized in that: The invention comprises a snap screw sleeve (1) for connecting with a docking port, a radio frequency coaxial connector is coaxially arranged in the snap screw sleeve (1), the radio frequency coaxial connector comprises an outer shell (2), a center conductor (3), an insulating medium (4) and a welding tail sleeve (5) arranged on the side of the outer shell (2) away from the docking port, the cable is connected to the center conductor (3) after passing through the welding tail sleeve (5), the snap screw sleeve (1) is provided with a limiting step (6) at the other end opposite to the docking port, the outer shell (2) is provided with a boss (7) corresponding to the limiting step (6) in the circumferential direction, a floating spring (8) is provided between the boss (7) and the end face of the limiting step (6), and after the radio frequency connector is subjected to axial force, it floats along the expansion and contraction direction of the floating spring (8), and a second boss (9) for limiting the end of the snap screw sleeve (1) is provided on the welding tail sleeve (5).

2. The anti-vibration SMP connector structure according to claim 1, characterized in that: The side wall of the snap screw sleeve (1) is provided with a slot (10) for engaging with the docking port, and the snap screw sleeve (1) is provided with a through slot (11) matching the docking port between the docking end face and the slot (10). The docking port enters the snap screw sleeve (1) through the through slot (11), and the snap screw sleeve (1) is connected to the docking port by cooperating with a pin provided on the side wall of the docking port and the slot (10).

3. The anti-vibration SMP connector structure according to claim 2, characterized in that: The clamping groove (10) adopts a V-shaped structure, and forms a space for the pin to move when the radio frequency connector floats relative to the docking port through the clamping groove (10) in the axial direction of the buckle screw sleeve (1).

4. The anti-vibration SMP connector structure according to claim 1, characterized in that: One end of the outer shell (2) close to the docking port is grooved along the axial direction on the circumference to form independent petal-shaped structures.

5. The anti-vibration SMP connector structure according to claim 4, characterized in that: The outer shell (2) is provided with a sway-stopping ring (12) outside the area where the petal-shaped structure is located. The sway-stopping ring (12) is sleeved on the outer shell (2). An opening is provided on the side wall of the sway-stopping ring (2). In a naturally contracted state, the diameter of the sway-stopping ring (12) is smaller than the outer diameter of the outer shell (2) in the corresponding area, and a radial contraction force is applied to the outer shell (2).

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