Cable assembly and electric connector

Abstract

The invention discloses a cable assembly and an electric connector comprising the cable assembly. The cable assembly includes: a cable; and the cylindrical connecting piece is sleeved on the cable. The cable assembly further comprises a gasket, the gasket is arranged on the cable in a sleeving mode and contained in the cylindrical connecting piece, and the shielding braid layer of the cable is overturned backwards to the gasket. The gasket is provided with a conical outer circumferential surface, the cylindrical connecting piece is provided with a conical inner circumferential surface, and a shielding braid layer of the cable can be extruded and fixed between the conical outer circumferential surface of the gasket and the conical inner circumferential surface of the cylindrical connecting piece. Therefore, in the electric connector, the shielding braid layer of the cable can be reliably fixed, the shielding braid layer of the cable cannot be damaged, and the electromagnetic shielding effect of the electric connector is improved. In addition, the number of parts to be assembled of the electric connector is small, and the field assembly efficiency of the electric connector is improved.

Description

[0001] This application is a divisional application of the patent application with the application number 201710890881.2 and the invention name “Cable assembly and electrical connector” filed on September 27, 2017 by “Tyco Electronics (Shanghai) Co., Ltd.” and “Tyco Electronics (Dongguan) Co., Ltd.”. Technical Field

[0002] The invention relates to a cable assembly and an electrical connector comprising the cable assembly. Background Art

[0003] In the prior art, some electrical connectors need to transmit large currents and have good electromagnetic shielding performance. Usually, such existing electrical connectors have many parts and are too complicated to assemble. Such electrical connectors usually need to be assembled on site, and too many parts will affect the efficiency of on-site assembly, and it is easy to cause the loss of parts due to too many parts, resulting in the problem of being unable to install.

[0004] In addition, in the prior art, whether the fixing and connection of the cable shielding layer are reliable will greatly affect the electromagnetic shielding performance and reliability of the electrical connector. The cable shielding layer of the existing electrical connector is generally directly wound on the rear end of the inner housing, and is fixed to the rear end of the inner housing by a cylindrical connector threadedly connected to the rear end of the inner housing. When the cylindrical connector is threadedly connected to the rear end of the inner housing, the cable shielding layer is easily worn, which will reduce the electromagnetic shielding performance. Summary of the invention

[0005] The purpose of the present invention is to solve at least one aspect of the above-mentioned problems and defects in the prior art.

[0006] According to one aspect of the present invention, a cable assembly is provided, comprising: a cable; and a cylindrical connector, which is sleeved on the cable. The cable assembly also includes a gasket, which is sleeved on the cable and accommodated in the cylindrical connector, and the shielding braided layer of the cable is flipped back onto the gasket; the gasket has a tapered outer circumference, and the cylindrical connector has a tapered inner circumference, and the shielding braided layer of the cable can be squeezed and fixed between the tapered outer circumference of the gasket and the tapered inner circumference of the cylindrical connector.

[0007] According to an exemplary embodiment of the present invention, the diameter of the conical outer circumference of the gasket gradually decreases in the direction of pulling the cable outward, and the diameter of the conical inner circumference of the cylindrical connecting piece gradually increases in the direction of pulling the cable outward, so that when the cable is pulled outward, the shielding braided layer of the cable can be clamped more tightly between the conical outer circumference of the gasket and the conical inner circumference of the cylindrical connecting piece to prevent the shielding braided layer of the cable from separating from the cylindrical connecting piece.

[0008] According to another exemplary embodiment of the present invention, the cylindrical connecting member may be connected to an inner housing of a terminal assembly, and the conductor of the cable may be electrically connected to a conductive terminal of the terminal assembly.

[0009] According to another exemplary embodiment of the present invention, when the cylindrical connector is connected to the inner housing of the terminal assembly, the shielding braided layer of the cable is squeezed and fixed between the tapered outer circumference of the gasket and the tapered inner circumference of the cylindrical connector.

[0010] According to another exemplary embodiment of the present invention, the cable assembly further comprises a sealing cap sleeved on the cable, wherein the sealing cap is suitable for being threadedly connected to a rear end of the cylindrical connector.

[0011] According to another exemplary embodiment of the present invention, the cable assembly also includes an elastic sealing sleeve sleeved on the cable, and the elastic sealing sleeve is accommodated in the sealing cap; when the sealing cap is threadedly connected to the cylindrical connector, the sealing cap squeezes the elastic sealing sleeve onto the cable to achieve sealing between the sealing cap and the cable.

[0012] According to another aspect of the present invention, an electrical connector is provided, comprising: the aforementioned cable assembly and a terminal assembly. The terminal assembly comprises: an outer shell; an inner shell assembled in the outer shell; an insulating body accommodated in the inner shell; and a conductive terminal disposed in the insulating body, wherein the front end of the cylindrical connector is threadedly connected to the rear end of the inner shell, and the conductor of the cable is electrically connected to the conductive terminal.

[0013] According to an exemplary embodiment of the present invention, the terminal assembly also includes a wave spring and a C-shaped clamping ring, the C-shaped clamping ring is clamped in a groove on the inner wall of the outer shell, and the wave spring is squeezed between the C-shaped clamping ring and a circle of positioning protrusions formed on the outer wall of the inner shell.

[0014] According to another exemplary embodiment of the present invention, the terminal assembly also includes a first sealing ring, a first groove is formed on the outer wall of the inner shell body, the first sealing ring is accommodated in the first groove, and is squeezed between the inner shell body and the outer shell body to achieve sealing between the inner shell body and the outer shell body.

[0015] According to another exemplary embodiment of the present invention, the terminal assembly also includes a second sealing ring, a second groove is formed on the outer wall of the inner shell body, the second sealing ring is accommodated in the second groove, and is squeezed between the inner shell body and the cylindrical connecting member to achieve sealing between the inner shell body and the cylindrical connecting member.

[0016] According to another exemplary embodiment of the present invention, the conductor of the cable is inserted into the insertion hole of the conductive terminal, and is pressed and fixed on the conductive terminal by a screw threadedly connected to the conductive terminal.

[0017] In the aforementioned various exemplary embodiments of the present invention, the shielding braided layer of the cable is squeezed and fixed between the conical outer circumference of the gasket and the conical inner circumference of the tubular connector. Therefore, the shielding braided layer of the cable can be reliably fixed without damaging the shielding braided layer of the cable, thereby improving the electromagnetic shielding effect of the electrical connector.

[0018] Furthermore, in some exemplary embodiments of the present invention, the number of parts to be assembled of the electrical connector is relatively small, thereby improving the on-site assembly efficiency of the electrical connector.

[0019] Other objects and advantages of the present invention will become apparent from the following description of the present invention with reference to the accompanying drawings, which will help to provide a comprehensive understanding of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional schematic diagram showing an electrical connector according to an exemplary embodiment of the present invention;

[0021] Figure 2 show Figure 1 An exploded schematic diagram of a terminal assembly of an electrical connector shown;

[0022] Figure 3 A longitudinal cross-sectional view showing an electrical connector according to an exemplary embodiment of the present invention. DETAILED DESCRIPTION

[0023] The technical solution of the present invention is further specifically described below by examples and in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the overall inventive concept of the present invention and should not be construed as a limitation of the present invention.

[0024] In addition, in the detailed description below, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the disclosed embodiments. However, it is apparent that one or more embodiments may be implemented without these specific details. In other cases, known structures and devices are embodied in a schematic manner to simplify the accompanying drawings.

[0025] According to an overall technical concept of the present invention, a cable assembly is provided, comprising: a cable; and a cylindrical connector, which is sleeved on the cable. The cable assembly also includes a gasket, which is sleeved on the cable and accommodated in the cylindrical connector, and the shielding braided layer of the cable is flipped back onto the gasket; the gasket has a tapered outer circumference, and the cylindrical connector has a tapered inner circumference, and the shielding braided layer of the cable can be squeezed and fixed between the tapered outer circumference of the gasket and the tapered inner circumference of the cylindrical connector.

[0026] Figure 1 A three-dimensional schematic diagram showing an electrical connector according to an exemplary embodiment of the present invention. Figure 3 A longitudinal cross-sectional view showing an electrical connector according to an exemplary embodiment of the present invention.

[0027] like Figure 1 and Figure 3 As shown, in the illustrated embodiment, the electrical connector includes a cable assembly 100 and a terminal assembly 200. The cable assembly 100 is suitable for being connected to the terminal assembly 200.

[0028] like Figure 1 and Figure 3 As shown, in the illustrated embodiment, the cable assembly 100 includes: a cable 110, a gasket 120, and a cylindrical connector 130. The gasket 120 and the cylindrical connector 130 are sleeved on the cable 110, and the gasket 120 is accommodated in the cylindrical connector 130. The shielding braided layer 112 of the cable 110 is turned back onto the gasket 120.

[0029] like Figure 1 and Figure 3 As shown, in the illustrated embodiment, the gasket 120 has a conical outer circumferential surface 120a, the cylindrical connector 130 has a conical inner circumferential surface 130a, and the shielding braided layer 112 of the cable 110 can be squeezed and fixed between the conical outer circumferential surface 120a of the gasket 120 and the conical inner circumferential surface 130a of the cylindrical connector 130.

[0030] like Figure 1 and Figure 3 As shown, in the illustrated embodiment, the diameter of the tapered outer circumferential surface 120a of the gasket 120 gradually decreases in the direction F in which the cable 110 is pulled outward, and the diameter of the tapered inner circumferential surface 130a of the cylindrical connector 130 gradually increases in the direction F in which the cable 110 is pulled outward, so that when the cable 110 is pulled outward, the shielding braided layer 112 of the cable 110 can be clamped more tightly between the tapered outer circumferential surface 120a of the gasket 120 and the tapered inner circumferential surface 130a of the cylindrical connector 130 to prevent the shielding braided layer 112 of the cable 110 from separating from the cylindrical connector 130.

[0031] Figure 2 show Figure 1 FIG. 2 is an exploded schematic diagram of a terminal assembly 200 of an electrical connector.

[0032] like Figure 1 , Figure 2 and Figure 3 As shown, in the illustrated embodiment, the cylindrical connector 130 can be connected to the inner housing 240 of the terminal assembly 200 , and the conductor 111 of the cable 110 can be electrically connected to the conductive terminal 230 of the terminal assembly 200 .

[0033] like Figure 3 As shown, in the illustrated embodiment, when the cylindrical connector 130 is connected to the inner housing 240 of the terminal assembly 200, the shielding braided layer 112 of the cable 110 is squeezed and fixed between the tapered outer circumference 120a of the gasket 120 and the tapered inner circumference 130a of the cylindrical connector 130.

[0034] like Figure 1 and Figure 3 As shown, in the illustrated embodiment, the cable assembly 100 further includes a sealing cap 150 sleeved on the cable 110 , and the sealing cap 150 is suitable for being threadedly connected to the rear end 131 of the cylindrical connector 130 .

[0035] like Figure 1 and Figure 3 As shown, in the illustrated embodiment, the cable assembly 100 further includes an elastic sealing sleeve 140 sleeved on the cable 110, and the elastic sealing sleeve 140 is accommodated in a sealing cap 150. When the sealing cap 150 is threadedly connected to the cylindrical connector 130, the sealing cap 150 presses the elastic sealing sleeve 140 on the cable 110 to achieve a seal between the sealing cap 150 and the cable 110.

[0036] like Figure 1 , Figure 2 and Figure 3 As shown, in the illustrated embodiment, the terminal assembly 200 includes: an outer housing 210; an inner housing 240, assembled in the outer housing 210; an insulating body 220, accommodated in the inner housing 240; and a conductive terminal 230, disposed in the insulating body 220. The front end 132 of the cylindrical connector 130 is threadedly connected to the rear end 241 of the inner housing 240, and the conductor 111 of the cable 110 is electrically connected to the conductive terminal 230.

[0037] like Figure 1 , Figure 2 and Figure 3As shown, in the illustrated embodiment, the terminal assembly 200 further includes a wave spring 270 and a C-shaped collar 280. The C-shaped collar 280 is clamped in a clamping groove 211 on the inner wall of the outer shell 210, and the wave spring 270 is squeezed between the C-shaped collar 280 and a circle of positioning protrusions 242 formed on the outer wall of the inner shell 240.

[0038] like Figure 1 , Figure 2 and Figure 3 As shown, in the illustrated embodiment, the terminal assembly 200 also includes a first sealing ring 250, a first groove is formed on the outer wall of the inner shell 240, the first sealing ring 250 is accommodated in the first groove, and is squeezed between the inner shell 240 and the outer shell 210 to achieve sealing between the inner shell 240 and the outer shell 210.

[0039] like Figure 1 , Figure 2 and Figure 3 As shown, in the illustrated embodiment, the terminal assembly 200 also includes a second sealing ring 260, and a second groove is formed on the outer wall of the inner shell 240. The second sealing ring 260 is accommodated in the second groove and is squeezed between the inner shell 240 and the cylindrical connector 130 to achieve sealing between the inner shell 240 and the cylindrical connector 130.

[0040] like Figure 1 , Figure 2 and Figure 3 As shown, in the illustrated embodiment, the conductor 111 of the cable 110 is inserted into the insertion hole of the conductive terminal 230 and is pressed and fixed on the conductive terminal 230 by a screw 231 threadedly connected to the conductive terminal 230 .

[0041] Those skilled in the art can understand that the embodiments described above are exemplary and can be improved by those skilled in the art. The structures described in various embodiments can be freely combined without causing conflicts in structure or principle.

[0042] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the accompanying drawings are intended to exemplify the preferred implementations of the present invention and should not be construed as limiting the present invention.

[0043] Although some embodiments of the present general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the present general inventive concept, the scope of which is defined by the claims and their equivalents.

[0044] It should be noted that the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. In addition, any element reference signs in the claims shall not be construed as limiting the scope of the present invention.

Claims

1. A cable assembly (100), comprising: Cable (110); and A cylindrical connecting piece (130) is sleeved on the cable (110). Features: The cable assembly further comprises a gasket (120), the gasket (120) being sleeved on the cable (110) and accommodated in the cylindrical connector (130), the gasket (120) having a conical outer peripheral surface (120a) at one end and a cylindrical outer peripheral surface at the other end, the shielding braided layer (112) of the cable (110) being flipped backwards from the inner side of the gasket along the cylindrical outer peripheral surface to the outer side of the gasket (120); The cylindrical connector (130) has a conical inner circumference (130a) and a cylindrical inner circumference, and the shielding braided layer (112) of the cable (110) can be squeezed and fixed between the conical outer circumference (120a) of the gasket (120) and the conical inner circumference (130a) of the cylindrical connector (130), wherein the cylindrical outer circumference and the cylindrical inner circumference both have a constant diameter, and the cylindrical outer circumference is radially located inside the cylindrical inner circumference, so that the shielding braided layer (112) of the cable (110) is also squeezed and fixed between the cylindrical outer circumference and the cylindrical inner circumference.

2. The cable assembly according to claim 1, characterized in that: The diameter of the conical outer circumferential surface (120a) of the gasket (120) gradually decreases in the direction (F) in which the cable (110) is pulled outward, and the diameter of the conical inner circumferential surface (130a) of the cylindrical connecting piece (130) gradually increases in the direction (F) in which the cable (110) is pulled outward, so that when the cable (110) is pulled outward, the shielding braided layer (112) of the cable (110) can be clamped more tightly between the conical outer circumferential surface (120a) of the gasket (120) and the conical inner circumferential surface (130a) of the cylindrical connecting piece (130), so as to prevent the shielding braided layer (112) of the cable (110) from being separated from the cylindrical connecting piece (130).

3. The cable assembly according to claim 1 or 2, characterized in that: The cylindrical connecting piece (130) can be connected to an inner housing (240) of a terminal assembly (200), and the conductor (111) of the cable (110) can be electrically connected to a conductive terminal (230) of the terminal assembly (200).

4. The cable assembly according to claim 3, characterized in that: When the cylindrical connector (130) is connected to the inner housing (240) of the terminal assembly (200), the shielding braided layer (112) of the cable (110) is squeezed and fixed between the conical outer peripheral surface (120a) of the gasket (120) and the conical inner peripheral surface (130a) of the cylindrical connector (130).

5. The cable assembly according to claim 1 or 2, characterized in that: The cable assembly (100) further comprises a sealing cap (150) sleeved on the cable (110), wherein the sealing cap (150) is suitable for being threadedly connected to the rear end (131) of the cylindrical connector (130).

6. The cable assembly according to claim 5, characterized in that: The cable assembly (100) further comprises an elastic sealing sleeve (140) sleeved on the cable (110), wherein the elastic sealing sleeve (140) is accommodated in the sealing cap (150); When the sealing cap (150) is threadedly connected to the cylindrical connecting piece (130), the sealing cap (150) presses the elastic sealing sleeve (140) onto the cable (110) to achieve sealing between the sealing cap (150) and the cable (110).

7. An electrical connector, characterized in that: include: The cable assembly (100) according to any one of claims 1 to 6; and The terminal assembly (200) comprises: Outer shell (210); An inner shell (240) assembled in the outer shell (210); an insulating body (220) accommodated in the inner housing (240); and A conductive terminal (230) is arranged in the insulating body (220). The front end (132) of the cylindrical connecting piece (130) is threadedly connected to the rear end (241) of the inner shell (240), and the conductor (111) of the cable (110) is electrically connected to the conductive terminal (230).

8. The electrical connector according to claim 7, characterized in that: The terminal assembly (200) further comprises a wave spring (270) and a C-shaped clamp ring (280), wherein the C-shaped clamp ring (280) is clamped in a clamping groove (211) on the inner wall of the outer shell (210), and the wave spring (270) is squeezed between the C-shaped clamp ring (280) and a circle of positioning protrusions (242) formed on the outer wall of the inner shell (240).

9. The electrical connector according to claim 7, characterized in that: The terminal assembly (200) further includes a first sealing ring (250), and a first groove is formed on the outer wall of the inner shell (240). The first sealing ring (250) is accommodated in the first groove and is squeezed between the inner shell (240) and the outer shell (210) to achieve sealing between the inner shell (240) and the outer shell (210).

10. The electrical connector according to claim 9, characterized in that: The terminal assembly (200) further includes a second sealing ring (260), and a second groove is formed on the outer wall of the inner shell (240). The second sealing ring (260) is accommodated in the second groove and is squeezed between the inner shell (240) and the cylindrical connecting member (130) to achieve sealing between the inner shell (240) and the cylindrical connecting member (130).

11. The electrical connector according to claim 7, characterized in that: The conductor (111) of the cable (110) is inserted into the insertion hole of the conductive terminal (230), and is pressed and fixed on the conductive terminal (230) by a screw (231) threadedly connected to the conductive terminal (230).

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