Straight plug connector

Abstract

The utility model belongs to the technical field of electric connectors, and particularly relates to a straight plug connector which comprises a shielding assembly, a plug shell provided with a plug through hole and a plug terminal installed in the plug through hole. The shielding assembly comprises a shielding outer sleeve, a shielding inner sleeve and a conductive sleeve; the side wall of the shielding outer sleeve is provided with a plurality of first gaps which are annularly distributed at intervals, and each first gap is internally provided with a first elastic sheet; the side wall of the shielding inner sleeve is provided with a plurality of second gaps which are annularly distributed at intervals, and each second gap is internally provided with a second elastic sheet; the conductive sleeve sleeves the plug terminal, the shielding inner sleeve sleeves the conductive sleeve, the shielding outer sleeve sleeves the shielding inner sleeve, the first elastic sheets abut against the second elastic sheets in a one-to-one correspondence mode, and one ends, away from the second elastic sheets, of the first elastic sheets abut against the inner wall of the plug through hole. The straight plug connector has a good shielding effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric connectors, in particular to a straight plug connector. Background Art

[0002] As a basic component, electrical connectors are used to transmit and control electrical signals and to connect electronic and electrical equipment. They are widely used in the electronics, machinery, aviation and other industries and play an important role.

[0003] Electrical connectors generally include plug connectors and receptacle connectors, which can be mated or separated from the receptacle. Plug connectors typically include a plug housing and plug terminals mounted within the housing. A shielding ring, typically located within the housing and sleeved over the plug terminals, not only secures the terminals within the housing but also provides shielding. However, existing shielding rings are prone to detaching from the inner wall of the housing, resulting in poor shielding in existing plug connectors. Utility Model Content

[0004] The utility model aims to solve the technical problem of poor shielding effect of a plug connector, and provides a straight plug connector.

[0005] To solve the above problems, the first embodiment of the present invention provides a straight plug connector, comprising a shielding assembly, a plug housing having a plug through hole, and a plug terminal installed in the plug through hole;

[0006] The shielding assembly includes a shielding outer sleeve, a shielding inner sleeve, and a conductive sleeve; a plurality of first notches distributed annularly at intervals are provided on the side wall of the shielding outer sleeve, and a first elastic piece is provided in each of the first notches; a plurality of second notches distributed annularly at intervals are provided on the side wall of the shielding inner sleeve, and a second elastic piece is provided in each of the second notches;

[0007] The conductive sleeve is sleeved on the plug terminal, the shielding inner sleeve is sleeved on the conductive sleeve, the shielding outer sleeve is sleeved on the shielding inner sleeve, the first elastic sheet is in one-to-one contact with the second elastic sheet, and the end of the first elastic sheet facing away from the second elastic sheet is in contact with the inner wall of the plug through hole.

[0008] Optionally, the conductive sleeve is provided with a first inner hole, and the conductive sleeve is sleeved on the plug terminal through the first inner hole;

[0009] The conductive sleeve is further provided with an annular flange extending away from the first inner hole, and both the shielding inner sleeve and the shielding outer sleeve abut against the annular flange.

[0010] Optionally, the straight plug connector further comprises a sealing cylinder sleeved on the plug terminal, the sealing cylinder being used to seal the connection between the plug terminal and the plug housing;

[0011] A plurality of first annular grooves distributed at annular intervals are provided on the inner wall of the sealing cylinder, and a plurality of second annular grooves distributed at annular intervals are provided on the outer wall of the sealing cylinder.

[0012] Optionally, the plug housing includes an outer housing provided with a first through hole and an insulating sleeve installed in the first through hole, and the plug through hole includes a second through hole provided on the outer housing and a third through hole provided on the insulating sleeve; the shielding assembly is installed in the second through hole, and an end of the first spring sheet facing away from the second spring sheet abuts against the inner wall of the second through hole.

[0013] Optionally, the inner diameter of the first through hole is greater than the inner diameter of the second through hole, and the outer shell further includes an annular step edge provided between the first through hole and the second through hole;

[0014] The insulating sleeve includes an insulating inner sleeve and an insulating outer sleeve sleeved on the insulating inner sleeve; the third through hole is provided on the insulating inner sleeve and the insulating outer sleeve; the insulating inner sleeve and the insulating outer sleeve are both in contact with the annular step.

[0015] Optionally, the plug terminal includes a first terminal and a second terminal connected to the first terminal, the first terminal is installed in the second through hole, and one end of the second terminal away from the first terminal extends into the third through hole; the conductive sleeve is sleeved on the second terminal.

[0016] Optionally, the straight plug connector also includes a pressure ring; the pressure ring includes a plurality of third spring pieces and a ring body sleeved on the second terminal, and a plurality of third notches distributed in an annular manner are provided on the side wall of the ring body, and the third spring pieces are connected one-to-one in the third notches; the outer wall of the pressure ring abuts against the inner wall of the insulating inner sleeve, and the third spring piece abuts against the second terminal.

[0017] Optionally, a receiving groove is provided between the insulating inner sleeve and the insulating outer sleeve, and the ring body is installed in the receiving groove;

[0018] The second terminal is further provided with an annular protrusion, and one end of the third elastic piece away from the ring body abuts against the annular protrusion.

[0019] Optionally, a latch hole communicating with the first through hole is provided on the outer shell, and an elastic latch is provided on the outer wall of the insulating sleeve, and the elastic latch is latched in the latch hole.

[0020] Optionally, the plug terminal is provided with an inserting hole; the straight plug connector further comprises a contact spring installed in the inserting hole;

[0021] The straight plug connector further includes a protective member installed in the insertion hole.

[0022] In the present invention, the shielding assembly includes a shielding outer sleeve, a shielding inner sleeve, and a conductive sleeve. The conductive sleeve is sleeved on the plug terminal, the shielding inner sleeve is sleeved on the conductive sleeve, and the shielding outer sleeve is sleeved on the shielding inner sleeve. The first elastic sheet on the shielding outer sleeve abuts against the second elastic sheet on the shielding inner sleeve in a one-to-one correspondence, and the end of the first elastic sheet facing away from the second elastic sheet abuts against the inner wall of the plug through-hole. The magnetic field generated during the power-on process of the plug terminal can be transmitted through the conductive sleeve, the shielding inner sleeve, the shielding outer sleeve, and the plug housing. In the present invention, the second elastic sheet will squeeze the first elastic sheet outward so that the first elastic sheet is pressed against the inner wall of the plug through-hole. The first elastic sheet is not easily separated from the inner wall of the plug through-hole, thereby ensuring the shielding effect of the straight plug connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 A schematic structural diagram of a straight plug connector provided in one embodiment of the present utility model;

[0025] Figure 2 A cross-sectional structural diagram of a straight plug connector provided in one embodiment of the present utility model;

[0026] Figure 3 A schematic diagram of an exploded structure of a shielding assembly of a straight plug connector provided in one embodiment of the present utility model;

[0027] Figure 4 This is a schematic structural diagram of a pressure ring of a straight plug connector provided in one embodiment of the present invention.

[0028] The reference numerals in the specification are as follows:

[0029] 1. Shielding assembly; 11. Shielding outer sleeve; 111. First notch; 112. First spring piece; 12. Shielding inner sleeve; 121. Second notch; 122. Second spring piece; 13. Conductive sleeve; 131. Annular flange; 2. Plug housing; 21. Plug through hole; 211. Second through hole; 212. Third through hole; 22. Outer housing; 221. First through hole; 222. Annular step edge; 223. Clamping hole; 23. Insulating sleeve; 231. Insulating inner sleeve; 232. Insulating outer sleeve; 233. Elastic buckle; 3. Plug terminal; 31. First terminal; 311. Annular protrusion; 32. Second terminal; 33. Connecting hole; 4. Sealing sleeve; 5. Pressing ring; 51. Third spring piece; 52. Ring body; 521. Third notch; 6. Contact spring; 7. Protective part. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to 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.

[0031] It should be understood that the terms "upper", "lower", "left", "right", "front", "back", "middle", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0032] like Figures 1 to 3 As shown, an embodiment of the present invention provides a straight plug connector, comprising a shielding assembly 1, a plug housing 2 having a plug through hole 21, and a plug terminal 3 installed in the plug through hole 21;

[0033] The shielding assembly 1 includes a shielding outer sleeve 11, a shielding inner sleeve 12 and a conductive sleeve 13; a plurality of first notches 111 distributed in an annular manner are provided on the side wall of the shielding outer sleeve 11, and each of the first notches 111 is provided with a first elastic piece 112; a plurality of second notches 121 distributed in an annular manner are provided on the side wall of the shielding inner sleeve 12, and each of the second notches 121 is provided with a second elastic piece 122; it can be understood that one end of the first elastic piece 112 is connected to the inner wall of the first notch 111, and the other end of the first elastic piece 112 extends toward the outside of the shielding outer sleeve 11; one end of the second elastic piece 122 is connected to the inner wall of the second notch 121, and the other end of the second elastic piece 122 extends toward the outside of the shielding inner sleeve 12.

[0034] The conductive sleeve 13 is sleeved onto the plug terminal 3, the shielding inner sleeve 12 is sleeved onto the conductive sleeve 13, and the shielding outer sleeve 11 is sleeved onto the shielding inner sleeve 12. The first elastic pieces 112 abut against the second elastic pieces 122 in a one-to-one correspondence, and the ends of the first elastic pieces 112 facing away from the second elastic pieces 122 abut against the inner wall of the plug through hole 21. It can be understood that the inner wall of the shielding inner sleeve 12 is in contact with the outer wall of the conductive sleeve 13, and the outer wall of the shielding inner sleeve 12 abuts against the inner wall of the shielding outer sleeve 11. Preferably, the width of the first elastic pieces 112 is greater than the width of the second elastic pieces 122.

[0035] In the present utility model, the shielding assembly 1 includes a shielding outer sleeve 11, a shielding inner sleeve 12 and a conductive sleeve 13. The conductive sleeve 13 is sleeved on the plug terminal 3, the shielding inner sleeve 12 is sleeved on the conductive sleeve 13, and the shielding outer sleeve 11 is sleeved on the shielding inner sleeve 12. The first elastic piece 112 on the shielding outer sleeve 11 corresponds one-to-one with the second elastic piece 122 on the shielding inner sleeve 12, and the end of the first elastic piece 112 facing away from the second elastic piece 122 abuts against the inner wall of the plug through hole 21; the magnetic field generated during the power-on process of the plug terminal 3 can be transmitted through the conductive sleeve 13, the shielding inner sleeve 12, the shielding outer sleeve 11 and the plug housing 2. In the present invention, the second elastic piece 122 squeezes the first elastic piece 112 outward so that the first elastic piece 112 is pressed against the inner wall of the plug through hole 21. The first elastic piece 112 is not easily separated from the inner wall of the plug through hole 21, thereby ensuring the shielding effect of the straight plug connector.

[0036] In one embodiment, if Figure 1 As shown, the conductive sleeve 13 is provided with a first inner hole, through which the conductive sleeve 13 is sleeved onto the plug terminal 3. The conductive sleeve 13 is also provided with an annular flange 131 extending away from the first inner hole. The shielding inner sleeve 12 and the shielding outer sleeve 11 both abut against the annular flange 131. It is understood that the bottoms of the shielding inner sleeve 12 and the shielding outer sleeve 11 both abut against the annular flange 131.

[0037] Specifically, the shielding assembly 1 is installed as follows: first, the conductive sleeve 13 is sleeved onto the plug terminal 3; then, the shielding inner sleeve 12 is sleeved onto the conductive sleeve 13, with the bottom of the shielding inner sleeve 12 abutting against the annular flange 131; finally, the shielding outer sleeve 11 is sleeved onto the shielding inner sleeve 12, with the bottom of the shielding outer sleeve 11 abutting against the annular flange 131. In this embodiment, the design of the annular flange 131 ensures the stability of the assembly of the shielding assembly 1.

[0038] In one embodiment, if Figure 2 As shown, the straight plug connector also includes a sealing cylinder 4 sleeved on the plug terminal 3, and the sealing cylinder 4 is used to seal the connection between the plug terminal 3 and the plug housing 2; it can be understood that the end of the annular flange 131 facing away from the shielding outer sleeve 11 abuts against the sealing cylinder 4.

[0039] The inner wall of the sealing sleeve 4 is provided with a plurality of first annular grooves spaced annularly apart, and the outer wall of the sealing sleeve 4 is provided with a plurality of second annular grooves spaced annularly apart. It is understood that the number of these first and second annular grooves can be adjusted based on actual needs. In this embodiment, the design of the plurality of first annular grooves ensures a tight seal when the sealing sleeve 4 is fitted onto the plug terminal 3; the design of the plurality of second annular grooves ensures a tight seal when the sealing sleeve 4 is fitted into the plug through-hole 21.

[0040] In one embodiment, if Figure 1 and Figure 2 As shown, the plug housing 2 includes an outer housing 22 having a first through-hole 221 and an insulating sleeve 23 mounted on the first through-hole 221. The plug through-hole 21 includes a second through-hole 211 provided on the outer housing 22 and a third through-hole 212 provided on the insulating sleeve 23. The shielding assembly 1 is mounted in the second through-hole 211, and the end of the first elastic leaf 112 facing away from the second elastic leaf 122 abuts against the inner wall of the second through-hole 211. It is understood that the inner diameter of the first through-hole 221 is larger than that of the second through-hole 211, and the first through-hole 221, the second through-hole 211, and the third through-hole 212 are coaxially arranged. The outer housing 22 is made of metal, and the insulating sleeve 23 is made of plastic. In this embodiment, the straight plug connector has good insulation properties.

[0041] In one embodiment, if Figure 2As shown, the inner diameter of the first through hole 221 is larger than the inner diameter of the second through hole 211, and the outer shell 22 further includes an annular step 222 disposed between the first through hole 221 and the second through hole 211. The insulating sleeve 23 includes an insulating inner sleeve 231 and an insulating outer sleeve 232 sleeved on the insulating inner sleeve 231. The third through hole 212 is disposed on the insulating inner sleeve 231 and the insulating outer sleeve 232. Both the insulating inner sleeve 231 and the insulating outer sleeve 232 abut against the annular step 222. It can be understood that the insulating outer sleeve 232 can press the insulating inner sleeve 231 tightly into the first through hole 221. Both the insulating inner sleeve 231 and the insulating outer sleeve 232 abut against the annular step 222, ensuring that the insulating sleeve 23 is securely installed in the first through hole 221.

[0042] In one embodiment, if Figure 2 As shown, the plug terminal 3 includes a first terminal 31 and a second terminal 32 connected to the first terminal 31. The first terminal 31 is mounted in the second through-hole 211, and the end of the second terminal 32, remote from the first terminal 31, extends into the third through-hole 212. The conductive sleeve 13 is sleeved over the second terminal 32. It is understood that the end of the first terminal 31, remote from the second terminal 32, can be electrically connected to the receptacle connector; the end of the second terminal 32, remote from the first terminal 31, can be electrically connected to an external electrical device. The first terminal 31 and the second terminal 32 can contact each other in the second through-hole 211. In this embodiment, the straight plug connector has a simple structure and low manufacturing cost.

[0043] In one embodiment, if Figure 2 and Figure 4 As shown, the straight plug connector further includes a pressure ring 5; the pressure ring 5 includes a plurality of third springs 51 and a ring body 52 that sleeves onto the second terminal 32. The sidewall of the ring body 52 is provided with a plurality of third notches 521 spaced annularly apart, and the third springs 51 are connected one-to-one to the third notches 521. The outer wall of the pressure ring 5 abuts the inner wall of the insulating inner sleeve 231, and the third springs 51 abut against the second terminal 32. It is understood that the third springs 51 and the ring body 52 are integrally formed, with the end of the third spring 51 away from the ring body 52 extending toward the axis of the ring body 52. In this embodiment, the ring body 52 is mounted on the insulating inner sleeve 231, and the third springs 51 press against the first terminal 31, thereby ensuring the secure installation of the first terminal 31 in the second through-hole 211. The shielding assembly 1 also ensures the secure installation of the second terminal 32 in the third through-hole 212.

[0044] In one embodiment, if Figure 2 As shown, a receiving groove is provided between the insulating inner sleeve 231 and the insulating outer sleeve 232, and the ring body 52 is installed in the receiving groove; an annular protrusion 311 is also provided on the second terminal 32, and the end of the third elastic piece 51 away from the ring body 52 abuts against the annular protrusion 311. It can be understood that the axially opposite ends of the ring body 52 abut against the insulating inner sleeve 231 and the insulating outer sleeve 232 respectively, thereby ensuring the stability of the ring body 52 installed in the receiving groove; the end of the third elastic piece 51 away from the ring body 52 abuts against the annular protrusion 311, so that the pressure ring 5 can limit the depth of the first terminal 31 installed in the first through hole 221, ensuring the stability of the docking between the first terminal 31 and the second terminal 32.

[0045] In one embodiment, if Figure 1 As shown, the outer shell 22 is provided with a latching hole 223 that communicates with the first through-hole 221. An elastic latch 233 is provided on the outer wall of the insulating sleeve 23, and the elastic latch 233 is engaged with the latching hole 223. It is understood that multiple elastic latches 233 and latching holes 223 can be provided according to actual needs, and the elastic latches 233 are engaged with the latching holes 223 in a one-to-one correspondence. In this embodiment, after the insulating sleeve 23 is installed in the first through-hole 221, the elastic latch 233 automatically engages with the latching hole 223, making the straight plug connector easy to assemble and disassemble.

[0046] In one embodiment, if Figure 1 and Figure 2 As shown, the plug terminal 3 is provided with an insertion hole 33; the straight plug connector further includes a contact spring 6 mounted in the insertion hole 33. It is understood that the contact spring 6 is a cylindrical member and is electrically connected to the plug terminal 3. When the straight plug connector is mated with the receptacle connector, the receptacle terminal of the receptacle connector is inserted into the insertion hole 33 and contacts the contact spring 6, thereby completing the electrical connection between the receptacle connector and the straight plug connector.

[0047] The straight plug connector further includes a protective member 7 mounted in the insertion hole 33. It is understood that the protective member 7 includes, but is not limited to, a bolt, a plug post, etc. The protective member 7 is inserted into the center of the insertion hole 33 to prevent a user's fingers from being inserted into the insertion hole 33, thereby improving the safety of the straight plug connector.

[0048] The above is only an embodiment of the straight plug connector of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A straight plug connector, characterized in that: The invention comprises a shielding assembly, a plug housing provided with a plug through hole, and a plug terminal installed in the plug through hole; The shielding assembly includes a shielding outer sleeve, a shielding inner sleeve, and a conductive sleeve; a plurality of first notches distributed annularly at intervals are provided on the side wall of the shielding outer sleeve, and a first elastic piece is provided in each of the first notches; a plurality of second notches distributed annularly at intervals are provided on the side wall of the shielding inner sleeve, and a second elastic piece is provided in each of the second notches; The conductive sleeve is sleeved on the plug terminal, the shielding inner sleeve is sleeved on the conductive sleeve, the shielding outer sleeve is sleeved on the shielding inner sleeve, the first elastic sheet is in one-to-one contact with the second elastic sheet, and the end of the first elastic sheet facing away from the second elastic sheet is in contact with the inner wall of the plug through hole.

2. The straight plug connector according to claim 1, wherein The conductive sleeve is provided with a first inner hole, and the conductive sleeve is sleeved on the plug terminal through the first inner hole; The conductive sleeve is further provided with an annular flange extending away from the first inner hole, and both the shielding inner sleeve and the shielding outer sleeve abut against the annular flange.

3. The straight plug connector according to claim 1, wherein The straight plug connector further comprises a sealing cylinder sleeved on the plug terminal, the sealing cylinder being used to seal the connection between the plug terminal and the plug housing; A plurality of first annular grooves distributed at annular intervals are provided on the inner wall of the sealing cylinder, and a plurality of second annular grooves distributed at annular intervals are provided on the outer wall of the sealing cylinder.

4. The straight plug connector according to claim 1, wherein The plug housing includes an outer housing having a first through hole and an insulating sleeve installed in the first through hole, and the plug through hole includes a second through hole provided on the outer housing and a third through hole provided on the insulating sleeve; the shielding assembly is installed in the second through hole, and an end of the first elastic sheet facing away from the second elastic sheet abuts against the inner wall of the second through hole.

5. The straight plug connector according to claim 4, wherein: The inner diameter of the first through hole is greater than the inner diameter of the second through hole, and the outer shell further includes an annular step edge arranged between the first through hole and the second through hole; The insulating sleeve includes an insulating inner sleeve and an insulating outer sleeve sleeved on the insulating inner sleeve; the third through hole is provided on the insulating inner sleeve and the insulating outer sleeve; the insulating inner sleeve and the insulating outer sleeve are both in contact with the annular step.

6. The straight plug connector according to claim 5, wherein: The plug terminal includes a first terminal and a second terminal connected to the first terminal. The first terminal is installed in the second through hole, and one end of the second terminal away from the first terminal extends into the third through hole. The conductive sleeve is sleeved on the second terminal.

7. The straight plug connector according to claim 6, wherein: The straight plug connector also includes a pressure ring; the pressure ring includes a plurality of third spring pieces and a ring body sleeved on the second terminal, and a plurality of third notches distributed in an annular manner are provided on the side wall of the ring body, and the third spring pieces are connected one-to-one in the third notches; the outer wall of the pressure ring abuts the inner wall of the insulating inner sleeve, and the third spring pieces abut against the second terminal.

8. The straight plug connector according to claim 7, wherein: A receiving groove is provided between the insulating inner sleeve and the insulating outer sleeve, and the ring body is installed in the receiving groove; The second terminal is further provided with an annular protrusion, and one end of the third elastic piece away from the ring body abuts against the annular protrusion.

9. The straight plug connector according to claim 4, wherein: The outer shell is provided with a clamping hole communicating with the first through hole, and the outer wall of the insulating sleeve is provided with an elastic clamping buckle, which is clamped in the clamping hole.

10. The straight plug connector according to claim 1, wherein The plug terminal is provided with an inserting hole; the straight plug connector further comprises a contact spring installed in the inserting hole; The straight plug connector further includes a protective member installed in the insertion hole.

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