A quick positioning line-to-board navigation plug

Abstract

The utility model relates to the field of navigation plug, specifically disclose a quick positioning line pair board navigation plug is equipped with nut, connector middle end and connector wire end, the top of connector wire end with the bottom of connector middle end is detachable, the upper portion of nut passes through connector middle end and is screwed with connector wire end, the top of nut is equipped with through -hole, the upper portion of nut is inverted funnel shape, the lower part of nut is straight cylinder, and the inner wall of lower part of nut is equipped with internal thread, the middle part of connector middle end is equipped with hole, the outer wall of connector middle end is vertically divided into corresponding number of hoop tight piece with interval gap between adjacent hoop tight piece, and the hoop tight piece is not penetrated the bottom of the outer wall of connector middle end.

Description

Technical Field

[0001] This utility model belongs to the field of aviation connectors, and in particular relates to a quick-positioning line-to-plate aviation connector. Background Technology

[0002] Existing wire-to-board aviation connectors generally have the following defects: 1. Complex structure and large size: After the traditional aviation plug-in board is installed into the shell, it needs to be re-soldered to the PCB through internal wires, which increases the number of structural layers and is not suitable for compact spaces with small distance between the PCB and the shell. 2. Low assembly efficiency: There are no clear tightening instructions, and the operator's experience is relied upon to judge whether the seal is in place, which can easily lead to damage from over-tightening or seal failure from under-tightening. 3. The wire harness is prone to twisting: During the tightening process, the wire harness is prone to twisting and turning into a "braid" shape due to uneven force, which affects signal transmission and may even cause the wire to break. 4. Simple waterproof structure: Usually, a sealing ring is only installed in one place, resulting in insufficient waterproof reliability; 5. Unreliable positioning: The injection molding of the wire ends is mostly symmetrical and circular, which makes it easy for the wires to rotate and slip out in the positioning groove, resulting in connection failure.

[0003] Therefore, there is an urgent need for a wire-to-board connector that is structurally simplified, can quickly determine the tightening status, is anti-twisting, has multiple waterproof features, and is reliably positioned. Utility Model Content

[0004] This utility model provides a quick-positioning wire-to-board connector, which solves the problems of complex structure, low assembly efficiency, easy twisting of wire harness, poor waterproof performance and unreliable positioning in the existing technology.

[0005] To solve the above problems, the technical solution provided by this utility model is as follows: a quick-positioning wire-to-board connector, comprising a nut, a connector middle end, and a connector wire end; the top of the connector wire end is fixed to the bottom of the connector middle end; the nut passes through the connector middle end and is threadedly connected to the upper part of the connector wire end; The nut has a through hole at the top; the upper part of the nut is inverted funnel shape, the lower part of the nut is cylindrical, and the inner wall of the lower part of the nut has internal threads. The connector has a central hole in the middle, which vertically divides the outer wall of the connector into a corresponding number of clamping plates, and there are gaps between adjacent clamping plates; the vertically divided clamping plates do not penetrate the bottom of the outer wall of the connector.

[0006] A corresponding number of positioning elements are provided on the upper inner wall of the nut; the positioning elements are matched with the gaps between adjacent clamping plates.

[0007] A tightening waterproof ring is provided at the upper part of the middle end of the connector, and a first hole is provided in the middle of the tightening waterproof ring. The diameter of the first hole matches the diameter of the wire harness.

[0008] The connector wire end is provided with a base and a threaded post; the bottom of the threaded post is fixed to the middle position of the base; the starting position of the second hole is the top of the threaded post, and the ending position of the second hole is the bottom of the base; the diameter of the second hole matches the maximum diameter of the wire harness after injection molding.

[0009] The outer surface of the threaded post is provided with external threads, which match the internal threads of the nut.

[0010] The inner surface of the threaded post is provided with a raised strip. The wire harness is injection molded at a designated position, and a corresponding groove is provided at the designated position of the wire harness after injection molding. The raised strip matches the groove.

[0011] A plate end sealing gasket is fixed on the lower surface of the chassis. A third hole is opened in the middle of the plate end sealing gasket. The centers of the third hole, the second hole and the first hole are on the same vertical plane.

[0012] The outer wall of the nut is provided with a rotation mark; a locking mark is provided on the outer wall of the chassis at the connector wire end.

[0013] The advantages over existing technologies are: 1. Clearly define the assembly sequence. First, put the nut and tightening waterproof ring onto the wire end in sequence before injection molding to avoid assembly obstacles and improve assembly efficiency. 2. It is equipped with tightening marks. By matching the turning marks with the locking marks, it is possible to quickly determine whether the tightening is in place, thus enabling rapid assessment of the tightening status. 3. The gap between the clamping plates and the fit between the nut's positioning parts reduce the possibility of the wire harness becoming twisted during tightening when it is inserted, thus improving the stability of the wire harness connection. 4. Tighten the waterproof ring and the end sealing gasket, and apply them to the waterproofing of both the upper and lower parts of the middle section of the aircraft insert, so as to achieve multiple waterproofing effects in one structure. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments or prior art, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is one of the schematic diagrams of the overall structure of this utility model; Figure 2 This is the second schematic diagram of the overall structure of this utility model; Figure 3 This is a schematic diagram of the nut structure of this utility model; Figure 4 This is a schematic diagram of the wire harness structure of this utility model; Figure 5 This is a schematic diagram of the connector wire end structure of this utility model.

[0016] According to the above diagram: Nut-1; Connector middle end-2; Connector wire end-3; Wire harness-4; Tightening waterproof ring-5; Plate end sealing gasket-6; Rotation mark-11; Positioning part-12; Internal thread-13; Clamping plate-21; Base-31; Threaded post-32; Locking mark-33; Raised bar-34; Groove-42. Detailed Implementation

[0017] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. The accompanying drawings show preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0018] It should be noted that when a component is described as being "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is described as being "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "fixed," "integral," "left," "right," and similar expressions used in this specification are for illustrative purposes only, and in the figures, structurally similar units are labeled with the same reference numerals.

[0019] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention.

[0020] like Figure 1-5 As shown, one embodiment of this utility model is: a quick-positioning wire-to-board connector, comprising a nut 1, a connector middle end 2, and a connector wire end 3; the top of the connector wire end 3 is fixed to the bottom of the connector middle end 2; the nut 1 passes through the connector middle end 2 and is threadedly connected to the upper part of the connector wire end 3; The top of the nut 1 is provided with a through hole; the upper part of the nut 1 is inverted funnel shape, the lower part of the nut 1 is straight cylinder shape, and the inner wall of the lower part of the nut 1 is provided with internal thread 13; The connector middle end 2 has a central hole in the middle, and the outer wall of the connector middle end 2 is vertically divided into a corresponding number of clamping pieces 21, and there is a gap between adjacent clamping pieces 21; the vertically divided clamping pieces 21 do not penetrate the bottom of the outer wall of the connector middle end 2.

[0021] It should be noted that the wire harness 4 passes through the through hole of the nut 1, the central hole of the connector middle end 2, and the connector wire end 3 in sequence and extends outward. When it is necessary to tighten the wire harness 4, the nut 1 is rotated to move downward on the thread of the connector wire end 3, thereby pressing the upper part of the nut 1 against the multiple clamping plates 21 of the connector middle end 2 towards the center, thereby closing the outer surface of the wire harness 4 at that position and achieving the effect of tightening the wire harness 4.

[0022] A corresponding number of positioning elements 12 are provided on the upper inner wall of the nut 1; the positioning elements 12 are matched with the gaps between adjacent clamping plates 21.

[0023] It should be noted that in order to prevent the wire harness 4 from twisting during assembly and to avoid creating a twisted shape, the positioning piece is inserted into the gap between the corresponding adjacent clamping plates, thereby ensuring that the wire harness does not twist.

[0024] A tightening waterproof ring 5 is provided at the upper part of the middle end 2 of the connector. The tightening waterproof ring 5 has a first hole in the middle, and the diameter of the first hole matches the diameter of the wire harness 4.

[0025] It should be noted that by installing a tightening waterproof ring 5 at the middle end 2 of the connector, water stains are prevented from falling from the upper end of the wire harness 4 into the connector, thus preventing a short circuit.

[0026] The connector wire end 3 is provided with a base 31 and a threaded post 32; the bottom of the threaded post 32 is fixed to the middle position of the base 31; the starting position of the second hole is the top of the threaded post 32, and the ending position of the second hole is the bottom of the base 31; the diameter of the second hole matches the maximum diameter of the wire harness injection molding.

[0027] The outer surface of the threaded post 32 is provided with an external thread, which matches the internal thread 13 of the nut 1.

[0028] The inner surface of the threaded post is provided with a protrusion 34. The wire harness is injection molded at a designated position, and a corresponding groove is provided at the designated position of the wire harness after injection molding. The protrusion 34 matches the groove 42.

[0029] It should be noted that the internal protrusion 34 of the threaded post cooperates with the groove of the injection-molded wire harness, mainly for coarse positioning, so that the wire harness can be quickly positioned accurately after being inserted into the PCB board without having to rotate it multiple times to find the correct position for insertion.

[0030] A plate end sealing gasket 6 is fixed on the lower surface of the chassis 31. A third hole is provided in the middle of the plate end sealing gasket 6. The centers of the third hole, the second hole and the first hole are on the same vertical plane.

[0031] It should be noted that by fixing the sealing gasket 6 at the bottom of the chassis 31, water stains are prevented from entering the connector from the bottom of the wiring harness 4, thus preventing a short circuit.

[0032] The outer wall of the nut 1 is provided with a rotation mark 11; a locking mark 33 is provided on the outer wall of the chassis 31 of the connector wire end 3.

[0033] It should be noted that the correspondence between the rotating mark 11 on nut 1 and the locking mark 33 can be used to quickly determine whether the screw is tightened properly, thus enabling a quick assessment of the tightening status.

[0034] Working principle and dynamic working process: During assembly, one end of the wire passes through the through hole of nut 1, tightening waterproof ring 5, clamping plate 21 and threaded post 32 in sequence and extends outward; Then push the middle end of the connector toward the top of the nut so that the nut's locating part is locked in the gap of the clamping plate; Then, by rotating the nut, it moves on the stud to fix it; at the same time, the top of the nut presses against the top of the clamping plate, thereby closing the top of the clamping plate and compressing the wire harness.

[0035] Next, injection molding is performed at the designated position of the wire end, and after injection molding, the groove 42 at the designated position of the wire harness 4 mates with the protrusion 34 inside the threaded post. The third hole of the rear end plate sealing gasket 6 at the injection position of wire harness 4 extends outward; thereby realizing the assembly of the entire aviation connector.

[0036] By rotating the nut 1, the lower internal thread 13 of the nut 1 engages with the external thread of the stud at the connector end 3, causing the nut 1 to rotate downward on the threaded stud 32. This causes the multiple clamping plates 21 at the middle end 2 of the connector to converge towards the center (because the upper part of the nut 1 is inverted funnel-shaped, with a small upper end and a large lower end), thus achieving a clamping effect.

[0037] To more clearly indicate whether the harness 4 is tightened properly, check whether the rotation mark 11 (arrow) on the nut 1 is within the range of the locking mark 33 on the base 31 of the connector wire end 3. If it is, it means that it is tightened properly; otherwise, it is not tightened properly. In the tightened state, the tightening waterproof ring 5 is compressed to achieve a waterproof seal. At the same time, the separation design of the connector middle end 2 and the connector wire end 3 prevents the wire harness 4 from twisting and deforming, completing the quick positioning and reliable connection of the wire pair to the PCB board or interface.

[0038] It should be noted that the above-mentioned technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this utility model specification; and, for those skilled in the art, improvements or modifications can be made based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims of this utility model.

Claims

1. A quick-positioning line-to-plate aviation connector, characterized in that; It is provided with a nut, a connector middle end, and a connector wire end; the top of the connector wire end is separable from the bottom of the connector middle end; the nut passes through the connector middle end and is threadedly connected to the upper part of the connector wire end; The nut has a through hole at the top; the upper part of the nut is inverted funnel shape, the lower part of the nut is cylindrical, and the inner wall of the lower part of the nut has internal threads. The connector has a central hole in the middle, which vertically divides the outer wall of the connector into a corresponding number of clamping plates, and there are gaps between adjacent clamping plates; the vertically divided clamping plates do not penetrate the bottom of the outer wall of the connector.

2. The rapid positioning line-to-plate insertion device according to claim 1, characterized in that; A corresponding number of positioning elements are provided on the upper inner wall of the nut; the positioning elements are matched with the gaps between adjacent clamping plates.

3. The rapid positioning line-to-plate insertion device according to claim 1, characterized in that; A tightening waterproof ring is provided at the upper part of the middle end of the connector, and a first hole is provided in the middle of the tightening waterproof ring. The diameter of the first hole matches the diameter of the wire harness.

4. The rapid positioning line-to-plate insertion according to claim 2, characterized in that; The connector wire end is provided with a base and a threaded post; the bottom of the threaded post is fixed to the middle position of the base; the starting position of the second hole is the top of the threaded post, and the ending position of the second hole is the bottom of the base; the diameter of the second hole matches the maximum diameter of the wire harness after injection molding.

5. The rapid positioning line-to-plate insertion according to claim 4, characterized in that; The outer surface of the threaded post is provided with external threads, which match the internal threads of the nut.

6. The rapid positioning line-to-plate insertion according to claim 4, characterized in that; The inner surface of the threaded post is provided with a raised strip. The wire harness is injection molded at a designated position, and a corresponding groove is provided at the designated position of the wire harness after injection molding. The raised strip matches the groove.

7. The rapid positioning line-to-plate insertion according to claim 4, characterized in that; A plate end sealing gasket is fixed on the lower surface of the chassis. A third hole is opened in the middle of the plate end sealing gasket. The centers of the third hole, the second hole and the first hole are on the same vertical plane.

8. The rapid positioning line-to-plate insertion device according to claim 1, characterized in that; The outer wall of the nut is provided with a rotation mark; a locking mark is provided on the outer wall of the chassis at the connector wire end.

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