Connector with novel sealing PE structure

Abstract

The utility model discloses a connector with a novel sealing PE structure. The connector comprises an elastic sealing element, an outer seat shell, a PE terminal, a PCB and a retaining snap spring, the sealing piece comprises a circular ring base body and a plurality of end-direction sealing tables arranged at one end of the base body, and a clearance opening is formed between every two adjacent end-direction sealing tables. An outer sealing groove formed in the inner end of the PE shaft hole of the outer seat shell is sleeved with the sealing piece in an interference mode, and the sleeving end of the arc-shaped positioning ring faces the sealing table; one end of the PE terminal is inserted into the PE shaft hole of the outer seat shell, and the middle section of the PE terminal penetrates through the inner rib of the sealing element in an interference manner and is sleeved with the PE through hole of the PCB in a clearance manner; the pressing and attaching end of the PCB faces the sealing table; the fixing feet of the retaining snap spring are welded to the welding holes of the PCB, and the welding holes are right opposite to the clearance opening. The utility model has the effects of detachable reliable sealing, reliable position fixing height of the sealing element, convenience in maintenance, and reduction of product cost and use cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of connector, especially the connector with novel sealing PE structure. BACKGROUND

[0002] Current new energy field develops rapidly, and the connector is an important part in the new energy field, in order to safety protection, the connector usually contains PE grounding module, and the PE grounding module needs reliable sealing, the traditional sealing structure of the PE grounding module adopts vulcanization rubber coating between the sealing ring and the outer shell, which has the following defects: first, the vulcanization rubber coating can cause slight deformation of the outer shell, reduce the overall installation performance, and increase the product cost; second, because the sealing ring only has circumferential sealing, it does not have end sealing, and it cannot guarantee the fixed sealing position of the sealing ring, the sealing reliability of the sealing ring is poor, and it cannot meet the long-term effective sealing requirement; third, the vulcanization rubber coating structure is damaged when the sealing ring is removed during subsequent maintenance, and cannot be used repeatedly, so a new sealing ring needs to be replaced for vulcanization rubber coating again, which causes complicated and inconvenient maintenance and high cost. SUMMARY

[0003] In order to solve one or more of the above problems, the utility model provides a connector with novel sealing PE structure.

[0004] According to one aspect of the utility model, the connector with novel sealing PE structure comprises: an elastic sealing member, an outer shell, a PE terminal, a PCB board and a stop spring;

[0005] The sealing member comprises a circular ring base body and a plurality of end sealing platforms arranged at one end of the base body, the outer peripheral wall and the inner hole wall of the base body are respectively provided with radially elastically deformed outer and inner ribs, and an empty space is formed between adjacent end sealing platforms;

[0006] The outer sealing groove with a large diameter is arranged at the inner end of the PE shaft hole of the outer shell, the arc-shaped positioning ring is arranged on the outer wall of the outer sealing groove in a concentric manner, the outer rib is fitted into the outer sealing groove, and the end sealing platform is connected to the positioning ring in an interference fit;

[0007] The PE terminal is inserted into the PE shaft hole at one end, the middle segment is fitted into the inner rib in an interference fit, and the clearance is fitted into the PE through hole of the PCB board;

[0008] The PCB board is connected to the rear end groove of the outer shell and tightly contacts the end sealing platform;

[0009] The stop spring is connected to the rear end of the PE terminal, the fixed foot is welded to the welding hole of the PCB board, and the welding hole is opposite to the empty space.

[0010] In some embodiments, the outer peripheral wall of the base body integrally forms a plurality of axially equidistant outer ribs, and the inner hole wall integrally forms a plurality of axially equidistant inner ribs.

[0011] In some embodiments, the outer bead and the inner bead are annular, and the radial section is inverted V-shaped.

[0012] In some embodiments, the base body is outwardly convex at one end to form an end ring, and the end ring is divided into a plurality of circumferential arrays of end sealing platforms by a plurality of circumferential arrays of clearance openings.

[0013] In some embodiments, the clearance openings are radial through openings, and the end sealing platforms are fan-shaped convex blocks.

[0014] or the outer end wall of the sealing groove is concentrically provided with a convex circular-arc-shaped positioning ring.

[0015] In some embodiments, the middle section of the PE terminal forms an inner sealing groove, and the sealing member is located in the inner sealing groove, and the inner bead is interference-connected with the circumferential groove wall of the inner sealing groove.

[0016] In some embodiments, the sealing member is an elastic rubber integrally injection molded by a mold.

[0017] In some embodiments, the circular spring body of the stopper spring is sleeved with the rear end of the PE terminal, the front end of the spring body is provided with a plurality of circumferential arrays of arc-shaped elastic inserts inserted into the arc-shaped grooves at the outer edge of the PE through hole, and each insert is provided with an inwardly curved stopper claw in the middle, and the stopper claw is connected with the stopper groove of the PE terminal.

[0018] In some embodiments, a plurality of welding holes are distributed in the outer circumferential array of the PE through hole, a fixing foot is formed in the gap between adjacent inserts, the flat sheet of the right-angle fixing foot is attached to the welding hole and welded into an integral whole, and the longitudinal sheet of the L-shaped fixing foot is inserted into the welding hole and welded into an integral whole.

[0019] In some embodiments, the connector is a national standard DC connector.

[0020] The sealing piece of the connector with the novel sealing PE structure is provided with outer and inner beads for circumferential sealing, and a plurality of end sealing platforms for end sealing, so that a reliable sealing structure is realized, and the above structure realizes radial limiting, and the double end face fixing of the PCB and the outer sealing groove realizes end limiting, and the outer seat shell is sleeved with the positioning ring to position the end sealing platform, so that the rotation limiting of the sealing piece is effectively realized, and the highly reliable position fixing of the detachable sealing piece is realized. The beneficial effects are: (1) the novel sealing PE structure is detachable, does not need vulcanization and rubber coating, avoids slight deformation of the shell caused by vulcanization and rubber coating, has high product installation precision, and effectively reduces product cost; (2) the novel sealing PE structure has end sealing and circumferential sealing, has good sealing performance, and can guarantee the grounding function of the PE terminal; (3) the novel sealing PE structure has three-way limiting, effectively guarantees the sealing position of the sealing piece, has high sealing reliability, and can effectively meet long-term sealing performance; (4) the structure is detachable, convenient to maintain and disassemble, the sealing piece can be repeatedly used, and cost is reduced; (5) the sealing piece is provided with a clearance avoiding port, is opposite to the welding hole of the PCB, effectively avoids the welding position, protects the sealing piece, and guarantees assembly height. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a sectional view schematic diagram of the connector of the novel sealing PE structure of an embodiment of the utility model;

[0022] Figure 2 It is a sectional view schematic diagram of the connector of the novel sealing PE structure of an embodiment of the utility model; Figure 1

[0023] Figure 3 It is a sectional view schematic diagram of the connector of the novel sealing PE structure of an embodiment of the utility model; Figure 2

[0024] Figure 4 It is a sectional view schematic diagram of the connector of the novel sealing PE structure of an embodiment of the utility model; Figure 2

[0025] Figure 5 It is a sectional view schematic diagram of the connector of the novel sealing PE structure of an embodiment of the utility model; Figure 1

[0026] Figure 6 It is a sectional view schematic diagram of the connector of the novel sealing PE structure of an embodiment of the utility model; Figure 1

[0027] Sealing piece 1, base body 10, end sealing platform 11, outer bead 12, inner bead 13, clearance avoiding port 14;

[0028] Outer seat shell 2, PE shaft hole 20, outer sealing groove 21, positioning ring 22, power shaft hole 23, signal shaft hole 24; ​​​​​

[0029] PE terminal 3, inner sealing groove 31, retreat-stop groove 32;

[0030] PCB board 4, PE through hole 40, welding hole 41, arc groove 42;

[0031] Retreat-stop clamping spring 5, spring body 50, fixing leg 51, insertion piece 52, retreat-stop claw 53. DETAILED DESCRIPTION

[0032] The utility model will be explained in further detail below in combination with the drawings. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "inner" and "outer" refer to the directions towards or away from the geometric center of a specific component.

[0033] Figures 1 to 6 A connector with a novel sealing PE structure according to an embodiment of the utility model is schematically shown. As shown in the figure, the connector with the novel sealing PE structure comprises: an elastic sealing member 1, an outer seat shell 2, a PE terminal 3, a PCB board 4 and a retreat-stop clamping spring 5.

[0034] The sealing member 1 comprises a circular ring-shaped base body 10 and a plurality of end-direction sealing platforms 11 arranged at one end of the base body 10. The outer peripheral wall of the base body 10 is provided with radially elastically deformable outer ribs 12, and the inner hole wall is provided with radially elastically deformable inner ribs 13. The outer peripheral wall of the end-direction sealing platform 11 is located outside the base body 10, and an emptying port 14 is formed between adjacent end-direction sealing platforms 11. Preferably, the outer peripheral wall of the base body 10 integrally forms a plurality of axially equidistant outer ribs 12, and the inner hole wall integrally forms a plurality of axially equidistant inner ribs 13. The outer ribs 12 and the inner ribs 13 are both preferably annular, and the radial cross section is inverted V-shaped.

[0035] The inner end of the PE shaft hole 20 of the outer seat shell 2 is provided with a large-diameter outer sealing groove 21, and the outer wall of the outer sealing groove 21 is concentrically provided with an arc-shaped positioning ring 22. The outer ribs 12 are interference-fitted into the outer sealing groove 21, and the outer edge of the end-direction sealing platform 11 is interference-connected into the positioning ring 22.

[0036] The PE terminal 3 is inserted into the PE shaft hole 20 at one end, the middle segment is interference-fitted into the inner ribs 13, and the gap is sleeved with the PE through hole 40 of the PCB board 4.

[0037] The PCB board 4 is connected to the rear end groove of the outer seat shell 2 and tightly presses against the end-direction sealing platform 11.

[0038] The retreat-stop clamping spring 5 is connected to the rear end of the PE terminal 3, the fixing leg 51 is welded to the welding hole 41 of the PCB board 4, and the welding hole 41 is directly opposite the emptying port 14.

[0039] The sealing piece 1 of the connector with the novel sealing PE structure is provided with an outer rib 12 and an inner rib 13 for inner and outer circumferential sealing, and a plurality of end sealing platforms 11 for end sealing, so as to realize a reliable sealing structure, and the above structure realizes radial limiting, and the PCB 4 and the outer sealing groove 2 are fixed in the end face, and the outer seat shell 2 is sleeved with the positioning ring 22 to position the end sealing platform 11, so that the rotation limiting of the sealing piece 1 is effectively realized, and the highly reliable position fixing of the detachable sealing piece is realized. The beneficial effects are: first, the novel sealing PE structure is detachable, does not need vulcanization and rubber coating, avoids slight deformation of the shell caused by vulcanization and rubber coating, has high product installation precision, and effectively reduces the product cost; second, the novel sealing PE structure has end sealing and circumferential sealing, has good sealing performance, and can guarantee the grounding function of the PE terminal 3; third, the novel sealing PE structure has three-way limiting, effectively guarantees the sealing position of the sealing piece, has high sealing reliability, and can effectively meet the long-term sealing performance; fourth, the structure is detachable, convenient to maintain and disassemble, the sealing piece can be repeatedly used, and the cost is reduced; fifth, the sealing piece 1 is provided with a clearance 14 opposite to the welding hole 41 of the PCB 4, effectively avoids the welding position, protects the sealing piece, and guarantees the assembly height.

[0040] Further, the base 10 is outwardly protruded at one end to form an end ring, and the end ring is divided into a plurality of circumferentially arrayed end sealing platforms 11 by a plurality of circumferentially arrayed clearances 14. Preferably, the clearance 14 is a radial through hole, and the end sealing platform 11 is a fan-shaped protrusion. Preferably, the outer end wall of the sealing groove 21 is concentrically provided with a protruding positioning ring 22, and the positioning ring 22 is a circular arc ring. The beneficial effects are: the setting is convenient to manufacture, can effectively avoid the welding position, has better installable positioning effect, and guarantees the installation position precision of the sealing piece 3.

[0041] Further, the middle segment of the PE terminal 3 forms an inner sealing groove 31, and the sealing piece 1 is located in the inner sealing groove 31 and the inner rib 13 is connected to the circumferential groove wall of the inner sealing groove 31 in an interference fit. The beneficial effects are: the setting further guarantees the installation and sealing precision of the sealing piece 1.

[0042] Further, the sealing piece 1 is preferably made of elastic rubber and is integrally injection molded by a mold. The beneficial effects are: the sealing piece 1 has good sealing performance, is easy to install and fix, and effectively reduces the assembly difficulty.

[0043] Further, the middle section of the PE terminal 3 is further provided with a retreat-stop groove 32, the round spring body 50 of the retreat-stop spring 5 is sleeved with the rear end of the PE terminal 3, the front end of the spring body 50 forms a plurality of circumferentially arranged arc-shaped elastic insertion pieces 52 which are inserted into the arc-shaped grooves 42 at the outer edge of the PE through hole 40, and each insertion piece 52 is provided with an inwardly curved retreat-stop claw 53 which is attached to the retreat-stop groove 32. The beneficial effect is that the setting can effectively prevent the displacement of the PE terminal 3, ensure the good position of the PE terminal 3, and realize the good grounding function.

[0044] Further, a plurality of welding holes 41 are circumferentially arranged at the outer edge of the PE through hole 40, the fixed feet 51 are formed in the gaps between the adjacent insertion pieces 52, the flat piece of the straightly bent fixed feet 51 is attached to the outer edge of the welding hole 41 and is welded as a whole, and the longitudinal piece of the L-shaped double straightly bent fixed feet 51 is inserted into the welding hole 41 and is welded as a whole. The beneficial effect is that the retreat-stop spring 5 has better effective installation and fixing performance, and the position of the PE terminal 3 is improved.

[0045] Preferably, the connector is a national standard DC connector or other type of connector. The two power shaft holes 23 of the outer shell 2 are respectively connected with the positive and negative terminals, and the PCB 4 is connected with the positive and negative terminals through the heat-conducting glue; the plurality of signal shaft holes 24 of the outer shell 2 are respectively connected with the front ends of the signal terminals, and the rear ends of the signal terminals are connected with the PCB 4 through the spring sleeve, and the rear end of the PCB 4 is further provided with a signal switching module. The beneficial effect is that the PE sealing structure can be applied to various products and has a wide application range.

[0046] The above only describes some embodiments of the present application. For those skilled in the art, without departing from the creative concept of the present application, a plurality of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. Connector with a new type of sealed PE structure, characterized in that, It comprises: elastic seal (1), outer shell (2), PE terminal (3), PCB board (4) and stop card spring (5); The seal (1) comprises a circular ring base body (10) and a plurality of end sealing platforms (11) arranged at one end of the base body (10), and the outer peripheral wall and the inner hole wall of the base body (10) are respectively provided with radially elastically deformed outer ribs (12) and inner ribs (13), and the adjacent end sealing platforms (11) form an empty gap (14); The outer shell (2) is provided with a large-diameter outer sealing groove (21) at the inner end of the PE shaft hole (20), and the outer wall of the outer sealing groove (21) is concentrically provided with an arc-shaped positioning ring (22), the outer ribs (12) are in interference fit in the outer sealing groove (21) and the end sealing platform (11) is in interference connection in the positioning ring (22); The PE terminal (3) is inserted into the PE shaft hole (20) at one end, the middle segment is in interference fit with the inner ribs (13) and gap fit with the PE through hole (40) of the PCB board (4); The PCB board (4) is connected to the rear end groove of the outer shell (2) and tightly contacts the end sealing platform (11); The stop card spring (5) is connected to the rear end of the PE terminal (3), the fixed foot (51) is welded to the welding hole (41) of the PCB board (4), and the welding hole (41) is opposite to the empty gap (14).

2. Connector with novel sealing PE structure according to claim 1, characterized in that, The base body (10) is integrally formed with a plurality of axially equidistant outer ribs (12) on the outer peripheral wall and a plurality of axially equidistant inner ribs (13) on the inner hole wall.

3. Connector with novel sealing PE structure according to claim 2, characterized in that, The outer ribs (12) and the inner ribs (13) are annular and have a reverse V-shaped radial cross section.

4. Connector with novel sealing PE structure according to claim 1, characterized in that, The base body (10) is outwardly protruded at one end to form an end ring, and the end ring is divided into a plurality of circumferentially arrayed end sealing platforms (11) by a plurality of circumferentially arrayed empty gaps (14).

5. Connector with novel sealing PE structure according to claim 4, characterized in that, The empty gap (14) is a radial through hole, and the end sealing platform (11) is a fan-shaped protrusion. Or the outer end wall of the sealing groove (21) is concentrically provided with a convex arc-shaped positioning ring (22).

6. Connector with novel sealing PE structure according to claim 1, characterized in that, The middle segment of the PE terminal (3) forms an inner sealing groove (31), and the seal (1) is located in the inner sealing groove (31) and the inner ribs (13) are in interference connection with the circumferential groove wall of the inner sealing groove (31).

7. Connector with novel sealing PE structure according to claim 1, characterized in that, The seal (1) is integrally injection molded by elastic rubber through a mold.

8. Connector with novel sealing PE structure according to claim 1, characterized in that, The circular ring spring body (50) of the stop card spring (5) is sleeved with the rear end of the PE terminal (3), a plurality of circumferentially arrayed arc-shaped elastic inserts (52) at the front end of the spring body (50) are inserted into the arc-shaped grooves (42) at the outer edge of the PE through hole (40), an inner curved stop pawl (53) is arranged in the middle of each insert (52), and the stop pawl (53) is connected to the stop groove (32) of the PE terminal (3).

9. Connector with novel sealing PE structure according to claim 8, characterized in that, A plurality of welding holes (41) are arranged in the outer circumferential array of the PE through hole (40), a fixed foot (51) is formed in the gap between adjacent inserts (52), a flat piece of the right-angle fixed foot (51) is connected to the welding hole (41) and is welded into an integral whole, and a longitudinal piece of the L-shaped fixed foot (51) is inserted into the welding hole (41) and is welded into an integral whole.

10. Connector with novel sealing PE structure according to any one of claims 1 to 9, characterized in that, The connector is a national standard DC connector.

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