Connector and sealing cover body thereof

Abstract

The utility model relates to the technical field of conductive connecting devices, in particular to a connector and a sealing cover body thereof, the connector comprises a connector shell and an optical fiber connecting module, a baffle block of the optical fiber connecting module is provided with a wire passing channel, and the side wall of the wire passing channel is provided with a side slot for an optical fiber to enter the wire passing channel; a receding cavity used for receding the check block is formed in the sealing cover body, an opening allowing the check block to go in and out is formed in one side of the receding cavity, an optical fiber via hole is formed in the side opposite to the opening, and an optical fiber sealing face used for being matched with the outer surface of an optical fiber in a sealing mode is formed in the hole wall of the optical fiber via hole. The side wall of the sealing cover body is provided with an expansion joint for the optical fiber cable to enter the avoiding cavity and the optical fiber through hole from the side along the radial direction, and the sealing cover body can cover the side slot of the stop block for the optical fiber cable to enter the wire passing channel, so that dust accumulation caused by the influence of the opened side slot in the long-term use process is avoided; and dust is not easy to enter the contact part of the optical fiber contact piece to influence optical signal transmission.

Description

Technical Field

[0001] The utility model relates to the technical field of conductive connection devices, and particularly relates to a connector and a sealing cover body thereof. Background Art

[0002] A Chinese invention patent with the authorization announcement number of CN112202020B discloses an ultra-high-speed, high-density, and highly reliable integrated optoelectronic radio frequency connector. The plug of this connector includes a plug housing, and a fiber optic plug module, that is, a fiber optic connection module, is fixedly arranged in the fiber optic plug installation cavity provided in the plug housing. The fiber optic connection module includes a separately arranged mounting seat, a stop block, and a fiber optic contact. The fiber optic contact is connected with a fiber optic cable and penetrates into the inner cavity of the mounting seat. The mounting seat is installed in the plug housing, and the fiber optic cable passes through the wire passing channel formed in the inner cavity of the stop block. The stop block presses on the mounting seat and blocks and limits the fiber optic contact.

[0003] To facilitate the assembly of the fiber optic contact, a side slot communicating with its inner cavity is provided on the side wall of the stop block of the fiber optic connection module for the fiber optic cable to enter the stop block from one side along a direction perpendicular to the extending direction of the fiber optic cable. Due to the existence of the side slot, the inner cavity of the stop block has a relatively large open area, and dust accumulation will occur during long-term use, and it is easy for dust to enter the contact part of the fiber optic contact, thereby affecting the transmission of optical signals. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a connector to solve the problem that dust accumulation will occur during long-term use in the fiber optic connection module of the current connector due to the influence of the side slot of its stop block, and it is easy for dust to enter the contact part of the fiber optic contact and affect the transmission of optical signals. The purpose of the utility model is also to provide a sealing cover body of a connector to solve the above problems.

[0005] The technical solution of the connector of the utility model is as follows:

[0006] A connector includes a connector housing and a fiber optic connection module installed on the connector housing. The fiber optic connection module includes a stop block. The stop block is provided with a wire passing channel. A side slot for the fiber optic cable to enter the wire passing channel is provided on the side wall of the wire passing channel. A sealing cover body is arranged outside the stop block. An avoidance cavity for avoiding the stop block is arranged in the sealing cover body. An opening for the stop block to enter and exit is arranged on one side of the avoidance cavity, and a fiber optic through hole is arranged on the side opposite to the opening. The hole wall of the fiber optic through hole forms a fiber optic sealing surface for sealingly cooperating with the outer surface of the fiber optic cable. A telescopic slit is provided on the side wall of the sealing cover body for the fiber optic cable to enter the avoidance cavity and the fiber optic through hole radially from this side.

[0007] Furthermore, an installation cavity for installing the fiber optic connection module and the sealing cover body is provided on the connector housing, and the sealing cover body is forcibly installed into the installation cavity to cover the outside of the stop block.

[0008] Furthermore, a limiting surface for limiting the sealing cover body in the direction in which the sealing cover body is installed into the installation cavity is provided in the installation cavity.

[0009] Furthermore, a stepped structure is provided on the outer surface of the sealing cover body, and the stepped structure and the cavity wall of the installation cavity enclose a potting groove.

[0010] Furthermore, a floating gap for the fiber optic connection module to float is provided between the inner wall of the avoidance cavity of the sealing cover body and the stopper.

[0011] Advantages of the connector of the present utility model: The present utility model is improved on the basis of the connector in the prior art. By providing a sealing cover body outside the stopper of the fiber optic connection module, the telescopic seam on the side wall of the sealing cover body is used for the fiber optic cable to enter the avoidance cavity and the fiber optic through hole of the sealing cover body from one radial side. The hole wall of the fiber optic through hole of the sealing cover body forms a sealing fit with the outer surface of the fiber optic cable. The stopper enters the avoidance cavity in the sealing cover body from the opening of the sealing cover body, and the sealing cover body covers the stopper, which can cover the side opening of the stopper for the fiber optic cable to enter its wire passing channel, forming a dust-proof seal for the stopper, avoiding dust accumulation affected by the open side opening during long-term use, and not easily allowing dust to enter the contact part of the fiber optic contact to affect the optical signal transmission.

[0012] The technical solution of the sealing cover body of the connector of the present utility model is:

[0013] A sealing cover body of a connector, an avoidance cavity for avoiding the stopper of the fiber optic connection module is provided in the sealing cover body, an opening for the stopper to enter and exit is provided on one side of the avoidance cavity, a fiber optic through hole is provided on the side opposite to the opening, the hole wall of the fiber optic through hole forms a fiber optic sealing surface for sealing cooperation with the outer surface of the fiber optic cable, and a telescopic seam for the fiber optic cable to enter the avoidance cavity and the fiber optic through hole from this side along the radial direction is provided on the side wall of the sealing cover body.

[0014] Furthermore, the sealing cover body has an outer wall for tightly fitting with the cavity wall of the installation cavity on the connector housing.

[0015] Furthermore, the sealing cover body is provided with a limiting cooperation part for limiting cooperation with the limiting surface in the installation cavity in the direction in which it is installed into the installation cavity.

[0016] Furthermore, a stepped structure is provided on the outer surface of the sealing cover body, and the stepped structure is used to enclose a potting groove with the cavity wall of the installation cavity.

[0017] Furthermore, the avoidance cavity of the sealing cover body has an inner wall that is spaced from the stopper during use for the fiber optic connection module to float.

[0018] Beneficial effects of the sealing cover of the connector of the present utility model: Based on the exploration of dust-proof sealing for the optical fiber connection module of the connector, the present utility model pioneerly provides a sealing cover. By arranging the sealing cover outside the stopper of the optical fiber connection module, the telescopic joint on the side wall of the sealing cover is used to allow the optical fiber line to enter the avoidance cavity and the optical fiber through hole of the sealing cover from one radial side. A sealing fit is formed between the hole wall of the optical fiber through hole of the sealing cover and the outer surface of the optical fiber line. The stopper enters the avoidance cavity in the sealing cover from the opening of the sealing cover. The sealing cover covers the stopper, which can cover the side slot for the optical fiber line to enter its wire passing channel on the stopper, forming a dust-proof seal for the stopper, avoiding dust accumulation affected by the open side slot during long-term use, and not easily allowing dust to enter the contact part of the optical fiber contact to affect the optical signal transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of an embodiment of the connector of the present utility model;

[0020] Figure 2 is Figure 1 an exploded view of each component at the optical fiber connection module in

[0021] Figure 3 is Figure 2 a schematic diagram of the sealing cover in

[0022] Figure 4 is Figure 1 a cross-sectional view of the connector at the optical fiber connection module in

[0023] In the figure: 1. Connector housing; 11. Installation cavity; 2. Sealing cover; 21. Optical fiber through hole; 22. Telescopic joint; 3. Optical fiber line; 4. Optical fiber contact; 5. Stopper; 51. Side slot; 6. Mounting seat; 7. Screw; 8. Glue filling groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] For the connector of the present utility model, a sealing cover is arranged outside the stopper of the optical fiber connection module. The telescopic joint on the side wall of the sealing cover is used to allow the optical fiber line to enter the avoidance cavity and the optical fiber through hole of the sealing cover from one radial side. A sealing fit is formed between the hole wall of the optical fiber through hole of the sealing cover and the outer surface of the optical fiber line. The stopper enters the avoidance cavity in the sealing cover from the opening of the sealing cover. The sealing cover covers the stopper, which can cover the side slot for the optical fiber line to enter its wire passing channel on the stopper, forming a dust-proof seal for the stopper, avoiding dust accumulation affected by the open side slot during long-term use, and not easily allowing dust to enter the contact part of the optical fiber contact to affect the optical signal transmission.

[0025] Embodiment of the connector of the present utility model:

[0026] As Figure 1 , Figure 2, Figure 3 , Figure 4 As shown in Figure 4 , the connector includes a connector housing 1 and an optical fiber connection module mounted on the connector housing 1. The optical fiber connection module includes an optical fiber line 3, an optical fiber contact 4, a stop block 5, and a mounting base 6. The optical fiber line 3 is connected to the optical fiber contact 4. The optical fiber contact 4 is inserted into an opening groove on the mounting base 6. The optical fiber contact 4 and the mounting base 6 are jointly installed in a central hole of the stop block 5. The central hole of the stop block 5 penetrates along the insertion direction of the connector. The central hole of the stop block 5 forms a wire passing channel. The central hole of the stop block 5 includes a large hole section for fitting and installing the optical fiber contact 4 and the mounting base 6, and a small hole section for the optical fiber line 3 to pass through. A step surface is formed at the junction of the large hole section and the small hole section of the central hole of the stop block 5 to block and limit the optical fiber contact 4 and the mounting base 6, preventing the optical fiber contact 4 from disengaging towards the side where the optical fiber line 3 is located. An installation cavity 11 is provided on the connector housing 1. The installation cavity 11 includes an installation groove part for the stop block 5 to be inserted into and an avoidance hole part for avoiding the docking of the optical fiber contact 4 in the stop block 5 with the mating contact. The avoidance hole part is provided at the bottom of the installation groove part. The stop block 5 is installed on the bottom of the installation groove part of the installation cavity 11 by screws 7 to keep the optical fiber connection module on the connector housing 1.

[0027] To facilitate the assembly of the optical fiber contact 4, a side slot 51 that penetrates radially towards one side is provided on the hole wall of the central hole of the stop block 5. The hole wall of the central hole of the stop block 5 forms the side wall of the wire passing channel. By using the side slot 51, the optical fiber line 3 here can enter the wire passing channel in the stop block 5 along a direction perpendicular to its extension direction, that is, enter the wire passing channel along a direction perpendicular to the extension direction of the wire passing channel, which facilitates the overall installation of the optical fiber line 3 and the optical fiber contact 4 onto the stop block 5.

[0028] To seal and prevent dust, a sealing cover 2 is provided outside the stop block 2. The sealing cover 2 is sealed with the optical fiber line 3 and can cover the side slot 51 of the stop block 5 through which the optical fiber line 3 enters its wire passing channel, preventing dust accumulation in the connector during long-term use due to the open side slot 51 and making it difficult for dust to enter the contact part of the optical fiber contact 4 and affect the optical signal transmission.

[0029] The sealing cover body 2 has an inner cavity of the cover body adapted to the block 5, and the inner cavity of the cover body constitutes an avoidance cavity for avoiding the block 5. The cover body is used to form an enclosure and shielding for the block 5, which is beneficial to sealing and facilitating the assembly of the sealing cover body 2 on the connector housing 1. The opening of the inner cavity of the sealing cover body 2 faces the bottom of the groove of the installation groove part of the installation cavity 11. The opening of the inner cavity of the sealing cover body 2 is used for the block 5 to enter and exit the inner cavity of the sealing cover body when installing or removing the sealing cover body 2. The inner cavity of the sealing cover body 2 also has a cavity bottom opposite to the opening. The cavity bottom of the sealing cover body 2 is provided with an optical fiber through hole 21 for the optical fiber line 3 to enter. The optical fiber through hole 21 is for the optical fiber line 3 to pass through. The hole wall of the optical fiber through hole 21 is sealed with the outer surface of the optical fiber line 3, so that the sealing cover body 2 and the optical fiber line 3 are sealed, which can reduce the entry of dust from the gap between the sealing cover body 2 and the optical fiber line 3, and improve the sealing and dustproof effect.

[0030] The cross-sectional area of ​​the optical fiber via hole 21 is smaller than the cross-sectional area of ​​the optical fiber line 3, and the cross section is perpendicular to the extension direction. The hole wall of the optical fiber via hole 21 is tightly attached to the outer surface of the optical fiber line 3 to achieve sealing. The hole wall of the optical fiber via hole 21 forms an optical fiber sealing surface for sealing with the outer surface of the optical fiber line 3, which has a simple structure and is easy to install. The sealing cover body 2 is made of rubber material and is formed by injection molding, which has low cost and good sealing effect. The sealing cover body 2 is elastic. The side wall of the sealing cover body 2 is provided with an expansion joint 22 for the optical fiber line 3 to enter the optical fiber via hole 21. The expansion joint 22 is connected with the inner cavity of the sealing cover body 2 along the extension direction perpendicular to the optical fiber via hole 21. The expansion joint 22 faces the radial side of the optical fiber line. The optical fiber line 3 opens the expansion joint 22 radially from one side and squeezes into the optical fiber via hole 21, thereby entering the avoidance cavity of the sealing cover body 2 and the optical fiber via hole 21, which is convenient for the installation of the optical fiber line 3. After the optical fiber line 3 is installed in the optical fiber via hole 21, the expansion joint 22 is closed, which is conducive to dust prevention.

[0031] The sealing cover 2 is installed on the connector housing 1, which is convenient for setting the limit installation structure of the sealing cover 2. The sealing cover 2 is inserted into the installation cavity 11. The installation groove part of the installation cavity 11 is adapted to the sealing cover 2. The sealing cover 2 is inserted into the installation groove part of the installation cavity 11 and is in close contact with the groove wall of the installation groove part, which is beneficial to sealing and the installation of the sealing cover 2 is reliable. The sealing cover 2 is forcibly installed into the installation groove part of the installation cavity 11. In order to ensure the installation position of the sealing cover 2, when the sealing cover 2 is inserted into the installation cavity 11, the end face of the opening of the sealing cover 2 abuts against the bottom surface of the installation groove part of the installation cavity 11. The bottom surface of the installation groove part of the installation cavity 11 constitutes a limiting surface in the installation cavity 11 for limiting the sealing cover 2 in the direction of being installed into the installation cavity 11, and the end face of the opening of the sealing cover 2 constitutes a limiting cooperation part for limiting cooperation with the limiting surface in the installation cavity 11. A step structure is provided on the outer surface of the sealing cover 2. The step structure and the groove wall of the installation groove part of the installation cavity 11 enclose a potting groove 8. The potting groove 8 is an annular groove. By potting in the potting groove 8, the sealing cover 2 can be adhesively fixed on the connector housing 1 and the sealing cover 2 is in sealing cooperation with the connector housing 1. The structure is simple and the installation is reliable, which is beneficial to improving the sealing and dust-proof effect.

[0032] The optical fiber connection module can be floatingly arranged relative to the connector housing 1. When the optical fiber contact 4 is docked with the mating contact, the optical fiber connection module can move relative to the connector housing 1. Among them, a through hole for the screw 7 to pass through is provided on the stop block 5. A gap is provided along the axial direction of the screw 7 between the part of the stop block 5 provided with the through hole and the end of the screw 7, so that the stop block 5 can move relative to the screw 7. In order to prevent the sealing cover 2 from affecting the floating of the optical fiber connection module, a floating gap for the optical fiber connection module to float is provided between the sealing cover 2 and the stop block 5 of the optical fiber connection module. There is a floating gap between the cavity wall surface of the inner cavity of the sealing cover 2 and the outer surface of the stop block 5, so as to prevent the sealing cover 2 fixedly installed on the connector housing 1 from affecting the floating of the optical fiber connection module. The end face of the opening of the sealing cover 2 abuts against the bottom surface of the installation groove part of the installation cavity 11 to form a limit, restricting the position of the sealing cover 2 and ensuring a floating gap is left between the sealing cover 2 and the stop block 5, which is convenient for installation operation.

[0033] A plurality of installation cavities 11 are provided on the connector housing 1. Each installation cavity 11 can install an optical fiber connection module. In this embodiment, only one installation cavity 11 installs an optical fiber connection module, and the other installation cavities 11 do not install an optical fiber connection module. The installation cavities 11 without installed optical fiber connection modules can be blocked by the sealing cover 2 to prevent dust from entering. The sealing cover 2 can be used independently, with a simple installation method, high installation efficiency and good sealing effect.

[0034] In other embodiments, the sealing cover can also be sleeved on the stop block without being fixed to the connector housing. Here, the optical fiber connection module is no longer floatingly arranged.

[0035] In other embodiments, the sealing cover body may not be in close contact with the groove side wall of the installation groove portion of the installation cavity, and the sealing cover body is adhesively fixed to the groove bottom of the installation groove portion of the installation cavity.

[0036] Embodiment of the sealing cover body of the connector of the present utility model:

[0037] The sealing cover body of the connector in this embodiment has the same structure as the sealing cover body in the above-mentioned embodiment of the connector, and will not be described in detail here.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still make modifications to the technical solutions recorded in the foregoing embodiments without creative efforts, or make equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A connector, comprising a connector housing (1) and an optical fiber connection module mounted on the connector housing (1), the optical fiber connection module comprising a block (5), the block (5) being provided with a wire passage, the side wall of the wire passage being provided with a side slot (51) for allowing an optical fiber (3) to enter the wire passage, wherein: A sealing cover (2) is provided outside the block (5), and an escape cavity for escaping the block (5) is provided inside the sealing cover (2); an opening for the block (5) to enter and exit is provided on one side of the escape cavity, and an optical fiber through hole (21) is provided on the side opposite to the opening; the hole wall of the optical fiber through hole (21) forms an optical fiber sealing surface for sealingly cooperating with the outer surface of the optical fiber line (3); and an expansion joint (22) is provided on the side wall of the sealing cover (2) for the optical fiber line (3) to enter the escape cavity and the optical fiber through hole (21) radially from this side.

2. The connector according to claim 1, characterized in that: The connector housing (1) is provided with an installation cavity (11) for installing an optical fiber connection module and a sealing cover (2), and the sealing cover (2) is forcibly installed in the installation cavity (11) to cover the outside of the stopper (5).

3. The connector according to claim 2, characterized in that: A limiting surface for limiting the position of the sealing cover body (2) in the direction in which the sealing cover body (2) is installed in the installing cavity (11) is provided in the installing cavity (11).

4. The connector according to claim 2 or 3, characterized in that: The outer surface of the sealing cover body (2) is provided with a step structure, and the step structure and the cavity wall of the installation cavity (11) form a glue pouring groove (8).

5. The connector according to claim 1, 2 or 3, characterized in that: A floating gap is provided between the inner wall of the avoidance cavity of the sealing cover body (2) and the stopper (5) for the optical fiber connection module to float.

6. A sealing cover of a connector, characterized in that: The sealing cover (2) is provided with an escape cavity for evading a stopper (5) of the optical fiber connection module, one side of the escape cavity is provided with an opening for the stopper (5) to enter and exit, and the side opposite to the opening is provided with an optical fiber through hole (21), the hole wall of the optical fiber through hole (21) forms an optical fiber sealing surface for sealingly cooperating with the outer surface of the optical fiber line (3), and a expansion joint (22) is provided on the side wall of the sealing cover (2) for the optical fiber line (3) to enter the escape cavity and the optical fiber through hole (21) radially from this side.

7. The sealing cover of the connector according to claim 6, characterized in that: The sealing cover (2) has an outer wall for tightly fitting with a cavity wall of a mounting cavity (11) on the connector housing (1).

8. The sealing cover of the connector according to claim 7, characterized in that: The sealing cover body (2) is provided with a limiting matching portion for performing limiting matching with a limiting surface in the installation cavity (11) in the direction in which the sealing cover body (2) is installed in the installation cavity (11).

9. The sealing cover of the connector according to claim 7 or 8, characterized in that: The outer surface of the sealing cover body (2) is provided with a step structure, and the step structure is used to form a glue pouring groove (8) with the cavity wall of the installation cavity (11).

10. The sealing cover of the connector according to claim 6, 7 or 8, characterized in that: The avoidance cavity of the sealing cover body (2) has an inner wall which is spaced apart from the stopper (5) when in use, so as to allow the optical fiber connection module to float.

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