A shielding connector with a sealing function

Abstract

The present invention relates to a shielding connector with a sealing function, which includes a mounting panel, a housing, an insulator, and a shielding member located between the housing and the insulator. The insulator is provided with signal mounting holes for assembling signal line components and power mounting holes for assembling power line components. The signal line components include contacts with signal lines connected to their tails. A signal sealing plug with an inner circumference in interference fit with the signal line and an outer circumference in interference fit with the signal mounting hole is fixedly crimped to the signal line through the contact crimping area. The power line components include contacts with power lines connected to their tails. A power sealing plug with an inner circumference in interference fit with the power line and an outer circumference in interference fit with the power mounting hole is fixedly crimped to the power line through the contact crimping area. In the present invention, the cable and the sealing plug are fixed as a whole, and reliable sealing is achieved through the interference fit between the sealing plug, the cable, and the mounting hole.

Description

Technical Field

[0001] The present invention belongs to the technical field of connectors, and particularly relates to a shielded connector with a sealing function. Background Art

[0002] At present, high-voltage connectors have been widely used in the electric vehicle industry. On the one hand, during complex driving, due to environmental changes, condensates are likely to occur in the connectors, which in turn affects their electrical performance, posing serious safety hazards. Therefore, it is necessary to seal the connectors to prevent condensate formation. On the other hand, high voltage and large current can generate electromagnetic interference to other devices, so high-voltage connectors generally have a shielding layer. The presence of the shielding layer increases the difficulty of achieving sealing for the connectors. Therefore, researching a shielded connector with a sealing function can play a role in preventing condensate, improving the reliability of the connectors, which is of great significance. Summary of the Invention

[0003] To solve the above problems, the present invention provides a shielded connector with a sealing function having a novel structure. It fixes the sealing plug and the cable by crimping in the contact crimping area, and then realizes the sealing of the cable at the tail of the connector through the interference fit between the sealing plug and the cable and the insulator. A rubber ring with an interference fit is also pressed between the mounting panel, the end face of the tail of the housing, and the end face of the insulator to achieve the sealing of the end face of the tail of the connector.

[0004] The object of the present invention and the technical problems to be solved are achieved by adopting the following technical solutions. A shielded connector with a sealing function according to the present invention includes a mounting panel, a housing, an insulator, and a shielding member located between the housing and the insulator. The insulator has a signal mounting hole for assembling a signal line component and a power mounting hole for assembling a power line component. The signal line component includes a contact member with a signal line connected to its tail. A signal sealing plug with an interference fit on the inner circumference with the signal line and an interference fit on the outer circumference with the signal mounting hole is fixed to the signal line by crimping in the contact crimping area. The power line component includes a contact member with a power line connected to its tail. A power sealing plug with an interference fit on the inner circumference with the power line and an interference fit on the outer circumference with the power mounting hole is fixed to the power line by crimping in the contact crimping area.

[0005] The object of the present invention and the technical problems to be solved can also be further achieved by adopting the following technical measures.

[0006] In the aforementioned shielded connector with a sealing function, an interference seal is further performed between the mounting panel, the end face of the tail of the housing, and the end face of the tail of the insulator through a rubber ring. The rubber ring has a through hole for the shield to pass through to reach the mounting panel.

[0007] The aforementioned shielding connector with a sealing function, wherein at least one outer ring rib corresponding to the end face of the housing and at least one inner ring rib corresponding to the sealing face of the insulator are provided on both the upper and lower sealing faces of the rubber ring, and the through hole for the shield to pass through is surrounded by the inner and outer ring ribs.

[0008] The aforementioned shielding connector with a sealing function, wherein a positioning nail adapted to be positioned with a positioning hole on one side of the housing is provided on the rubber ring.

[0009] The aforementioned shielding connector with a sealing function, wherein multiple ribs are provided axially on both the inner and outer sealing faces of the signal sealing plug and the power sealing plug.

[0010] The aforementioned shielding connector with a sealing function, wherein a stop convex portion for preventing the power sealing plug from moving backward and disengaging from the crimping area is further provided at the front end of the contact portion between the power sealing plug and the contact member crimping area.

[0011] The aforementioned shielding connector with a sealing function, wherein a clamping elastic piece for limiting and preventing the contact member from retreating is provided on the contact member.

[0012] Compared with the prior art, the present invention has obvious advantages and beneficial effects. By means of the above technical solutions, the present invention can achieve quite high technical progressiveness and practicality, and has wide utilization value in the industry. It has at least the following advantages: The present invention realizes interference sealing between the mounting panel, the housing, and the insulator through the rubber ring. By providing a through hole for the shield to pass through, which is surrounded by the inner and outer ring ribs on the rubber ring, the conduction function between the shield of the connector and the mounting panel and the sealing function of the shield can be realized. The sealing between the signal sealing plug and the signal line component and the insulator is realized through interference fit, and the sealing effect is increased by providing multiple ribs on the sealing face. The sealing between the power sealing plug and the power line component and the insulator is realized through interference fit, and the sealing effect is increased by providing multiple ribs on the sealing face. In the present invention, the sealing plug and the cable are crimped together through the contact member, which can effectively prevent the falling off of the sealing plug and also realize the axial positioning of the sealing plug. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the shielding connector with a sealing function according to the present invention;

[0014] Figure 2 It is a cross-sectional view of the shielding connector with a sealing function according to the present invention;

[0015] Figure 3 It is another cross-sectional view of the shielding connector with a sealing function according to the present invention;

[0016] Figure 4 It is a partial exploded view of the shielding connector with a sealing function according to the present invention;

[0017] Figure 5 Schematic diagram of the rubber ring structure of the shielding connector with sealing function according to the present invention;

[0018] Figure 6 Schematic diagram of the power sealing plug structure of the shielding connector with sealing function according to the present invention;

[0019] Figure 7 Schematic diagram of the signal sealing plug structure of the shielding connector with sealing function according to the present invention.

[0020]

Description of main component symbols

[0021] 1: Housing

[0022] 2: Insulator

[0023] 3: Mounting panel

[0024] 4: Contact

[0025] 5: Shielding member

[0026] 6: Signal line

[0027] 7: Power line

[0028] 8: Rubber ring

[0029] 9: Signal sealing plug

[0030] 10: Power sealing plug

[0031] 11: Through hole

[0032] 12: Outer ring rib

[0033] 13: Inner ring rib

[0034] 14: Locating pin Detailed implementation manners

[0035] To further elaborate on the technical means and effects adopted by the present invention to achieve the intended invention purpose, the following, in combination with the attached drawings and preferred embodiments, details the specific implementation manners, structures, features and effects of the shielding connector with sealing function according to the present invention as follows.

[0036] Please refer to Figure 1-7 , which is a schematic diagram of each part structure of the shielding connector with sealing function according to the present invention. It includes a housing 1 and an insulator 2 assembled in the housing 1. The insulator 2 is provided with a signal mounting hole for assembling signal line components and a power mounting hole for assembling power line components.

[0037] The signal line component includes a contact 4 and a signal line 6 with a signal sealing plug 9 at the tail of the contact, wherein the signal line 6 and the signal sealing plug 9 are fixed to the contact 4 by crimping at the crimping area of the contact tail to form a signal line component. The signal line component is inserted into the signal mounting hole in the insulator. After it is installed in place, the contact spring will be stuck on the insulator to prevent the signal component from retreating, thereby achieving axial fixation of the assembly. The outer diameter of the signal sealing plug 9 is larger than the inner diameter of the signal mounting hole, and the inner diameter of the signal sealing plug 9 is smaller than the diameter of the signal line 6, so the three are interference fit, and the signal line component can be sealed. In an embodiment of the present invention, the inner and outer sealing surfaces of the signal sealing plug 9 are axially provided with multiple ribs to further enhance the sealing effect between the three and play an anti-condensation role.

[0038] The power line component includes a contact 4 and a power line 7 which is crimped on the outer periphery of the tail of the contact 4 and has an interference sleeve provided with a power sealing plug 10. The power sealing plug 10 and the power line 7 are crimped on the contact 4 through the wire pressing area at the tail of the contact 4 to form a power line component. The power line component is inserted into the power mounting hole in the insulator. After being installed in place, the contact spring will be stuck on the insulator to prevent the power component from retreating, thereby achieving axial fixation of the power line component. The outer diameter of the power sealing plug 10 is larger than the inner diameter of the power mounting hole, and the inner diameter of the power sealing plug is smaller than the diameter of the power line, thereby achieving an interference fit between the power sealing plug and the power line and the power mounting hole, so that the power line is reliably sealed. In an embodiment of the present invention, the inner and outer sealing surfaces of the power sealing plug 10 are axially provided with multiple ribs to enhance the sealing effect and play an anti-condensation role.

[0039] In the embodiment of the present invention, in order to enhance the crimping reliability of the power line component, a stopper protrusion is provided at the front end of the contact portion between the power sealing plug 10 and the contact crimping area to prevent the power sealing plug from moving backward and out of the crimping area, but the present invention is not limited thereto.

[0040] A mounting panel 3 is crimped onto the tail end faces of the shell 1 and the insulator 2. A rubber ring 8 is pressed between the mounting panel, the shell 1 and the insulator 2 to prevent liquid from entering the shell or the insulator through the mounting panel. The upper surface of the rubber ring 8 is interference fit with the mounting panel 3, and the lower surface is interference fit with the shell 1 and the insulator 2 to achieve reliable sealing.

[0041] The upper and lower sealing surfaces of the rubber ring are both provided with ribs distributed along their circumference, with at least one outer rib corresponding to housing 1 and at least one inner rib corresponding to insulator 2. When the rubber ring is compressed between the mounting panel, housing 1, and insulator 2, the ribs enhance the seal strength between the mounting panel (which has an interference fit with the rubber ring's upper sealing surface) and the insulator and housing (which have an interference fit with the rubber ring's lower sealing surface), thereby improving the rubber ring's anti-condensation effect.

[0042] A through hole 11 is further formed in the rubber ring 8 for a shielding member 5 provided between the housing 1 and the insulator 2 to pass through and contact the mounting panel. The through hole 11 is provided with ribs on both the inner and outer sides, so that the shielding member 5 is surrounded by the ribs on the inner and outer rings of the rubber ring. Under the joint action of the two ribs, the shielding member is sealed without affecting its function.

[0043] When assembling the connector of the present invention, the shielding 5 and the insulator 2 are assembled first, and then assembled into the housing 9. Then, the rubber ring 8 is pressed on the tail end faces of the housing 1 and the insulator 2, and the positioning pins on the rubber ring 8 enter from one side of the matching positioning holes on the housing 1 to achieve the positioning of the rubber ring. Finally, the connector is installed on the mounting panel 3, and the housing 1 and the mounting panel 3 are firmly connected by screws or other fixing members. Since the thickness of the rubber ring is greater than the gaps between the mounting panel, the housing and the insulator, the three are in interference fit to achieve the sealing between them. Under the action of the interference fit, the inner ring ribs on the rubber ring achieve the sealing between the insulator 2 and the mounting panel 3, playing a role in preventing condensation; the outer ring ribs on the rubber ring can seal the housing 1 and the mounting panel 3. Since through holes are provided at appropriate positions between the inner and outer ring ribs on the rubber ring, this ensures the conduction of the shielding through the holes to the mounting panel, and also surrounds the shielding between the inner and outer ring ribs, achieving the sealing effect on the shielding member.

[0044] The above is only a preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Although the present invention has been disclosed as above with the preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to it as equivalent embodiments with equivalent changes within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A shielded connector with a sealing function, comprising a mounting panel, a housing, an insulator, and a shielding member located between the housing and the insulator, wherein the insulator is provided with a signal mounting hole for mounting a signal line component and a power mounting hole for mounting a power line component, characterized in that: The signal line component includes a contact piece with a signal line crimped through a contact crimping area at the tail, and a signal sealing plug with an inner periphery interference fit with the signal line and an outer periphery interference fit with the signal mounting hole is crimped and fixed to the signal line and the contact piece through the contact crimping area; the power line component includes a contact piece with a power line crimped through a contact crimping area at the tail, and a power sealing plug with an inner periphery interference fit with the power line and an outer periphery interference fit with the power mounting hole is crimped and fixed to the power line and the contact piece through the contact crimping area; the installation panel and the tail end face of the shell and the tail end face of the insulator are also interference sealed by a rubber ring, and the rubber ring is provided with a through hole for the shield to pass through to reach the installation panel; the upper and lower sealing surfaces of the rubber ring are provided with at least one outer ring rib corresponding to the end face of the shell and at least one inner ring rib corresponding to the sealing surface of the insulator, and the through hole for the shield to pass through is surrounded by the inner and outer ring ribs; the contact piece is provided with a snap-on spring piece for limiting the position and preventing retreat of the insulator.

2. The shielded connector with sealing function according to claim 1, characterized in that: The rubber ring is provided with a positioning pin which is adapted to be positioned with a positioning hole opened on one side of the shell.

3. The shielded connector with sealing function according to claim 1, characterized in that: The inner and outer sealing surfaces of the signal sealing plug and the power sealing plug are both provided with a plurality of convex ribs along the axial direction.

4. The shielded connector with sealing function according to claim 1, characterized in that: The front end of the contact portion between the power sealing plug and the contact piece crimping zone is provided with a stopping protrusion to prevent the power sealing plug from moving backward and leaving the crimping zone.

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