A photoelectric hybrid connector

Abstract

The present invention relates to the field of optical fiber communication technology, and provides an optoelectronic hybrid connector. The optoelectronic hybrid connector includes a body, a core assembly, and at least two electrical terminals. The core assembly is arranged at the center of the cross section of the body, and at least two electrical terminals are symmetrically distributed about the core assembly on the cross section of the body. The structural distribution between the electrical terminals and the core assembly is reasonable, which can reduce the stress generated during the plugging and unplugging process of the optoelectronic hybrid connector, and reduce the influence of the electrical terminals on the coupling accuracy of the optical channel of the optical fiber connector during the plugging and unplugging process. At the same time, the optoelectronic hybrid connector realizes optoelectronic integration in a single optical port space, and the transmission of optical signals and electrical signals can be realized through an optoelectronic hybrid connector; at the same time, the optoelectronic hybrid connector is small in size, and can be connected to an adapter by plugging and unplugging once, which reduces the cumbersomeness of the plugging and unplugging operation.

Description

Technical Field

[0001] The invention relates to the technical field of optical fiber communication, and in particular to a photoelectric hybrid connector. Background Art

[0002] Optical fiber communication is a communication method that uses light waves as information carriers and optical fibers as transmission media. The field of optical communication technology usually involves devices such as connectors, optical modules, and adapters.

[0003] Among them, the connector is an optical passive device that realizes the connection between optical fibers. It has the function of active connection between optical fibers, optical fibers and active devices, optical fibers and other passive devices, and optical fibers and instruments; the optical module is a very important optical signal interface device in optical fiber communication. It has an optical interface and an electrical interface. The optical interface is connected to the optical fiber to transmit optical signals, and the electrical interface is connected to the external communication terminal equipment; the adapter is used to transfer the two connectors.

[0004] Taking the power supply to terminal equipment as an example, at present, the operation of optical communication equipment itself requires power supply. Especially in 5G applications, there are a large number of plug-in optoelectronic lines in equipment represented by 5G base stations. Since the optoelectronics and optical circuits are set separately, there are many connectors and they are divided into two categories, optoelectronics and optical circuits. They need to be paired correctly one by one, which leads to cumbersome operations during installation and maintenance, and it is easy to make plug-in errors.

[0005] In order to connect these composite cables, one solution in the prior art is to design the optical connector and the electrical connector independently, and to plug and couple the optical connector with the optical adapter to achieve optical signal docking; and to plug and couple the electrical connector with the electrical adapter to achieve electrical signal coupling docking. However, using separate optical connectors and electrical connectors requires plugging and unplugging twice to complete the optical and electrical connection and transmission, which is not only complicated in operation, but also requires two interfaces, and the device is large in size.

[0006] Another solution of the prior art is to integrate the electrical connector into the middle of a pair of optical connectors. The optical connector and the electrical connector can be plugged in and out of the adapter through a single plug-in and pull-out operation. However, in this solution, the two optical connectors must be used at the same time, and the electrical connector is arranged in the middle of the two optical connectors. In actual use, when the socket has only one optical connector space (for example, a single-fiber bidirectional type of an active module), this solution cannot be used.

[0007] Another solution is to use an optoelectronic hybrid connector, such as one based on the SC connector patent (patent number CN201911344083.5, connector assembly and optoelectronic composite connector); however, in this solution, the electrical terminals are partially exposed to the outside, and there is a certain risk of electric shock during actual use, which poses a human safety issue. On the other hand, the precision of the optical fiber of the fiber optic connector during the docking process is very high, and basically requires micron-level coupling. During the coupling and docking process, any force in the non-optical axis direction will affect the fiber coupling efficiency and fiber coupling accuracy; and the electrical terminals of the current optoelectronic hybrid connector are asymmetric in the distribution of the optical fiber coupling structure of the optical fiber connector, resulting in the plugging and unplugging stress of the electrical terminals during the plugging and unplugging process, which affects the coupling accuracy of the optical channel of the optical fiber connector.

[0008] In view of this, overcoming the defects of the prior art is an urgent problem to be solved in the field of this technology. Summary of the invention

[0009] The technical problem to be solved by the present invention is to provide an optoelectronic hybrid connector to solve the problem in the prior art that the plugging and unplugging stress during the plugging and unplugging of electrical terminals affects the coupling accuracy of the optical channel of the optical fiber connector.

[0010] The present invention adopts the following technical solution:

[0011] To solve the above problems, the present invention provides an optoelectronic hybrid connector, comprising: a body 1, a core assembly 2 and at least two electrical terminals 3, wherein at least two of the electrical terminals 3 are arranged inside the body 1, wherein:

[0012] In the cross-sectional layout of the body 1, the ferrule assembly 2 is arranged at the center of the cross-sectional view of the body 1, and at least two electrical terminals 3 are symmetrically distributed about the ferrule assembly 2 on the cross-sectional view of the body 1;

[0013] The ferrule assembly 2 is used to couple optical signals;

[0014] The electrical terminal 3 is used to couple electrical signals.

[0015] Furthermore, the optoelectronic hybrid connector further comprises an inner sleeve 4, the front end of the inner sleeve 4 is accommodated in the body 1, and the inner sleeve 4 is snap-connected with the body 1;

[0016] The inner sleeve 4 is provided with a mounting hole 41, and the rear end of the plug assembly 2 is accommodated in the mounting hole 41; at least two first mounting grooves 42 are also provided on the surface of the inner sleeve 4, and at least two of the first mounting grooves 42 are symmetrically distributed relative to the center of the mounting hole 41, and the rear end of the electrical terminal 3 is arranged on the corresponding first mounting groove 42.

[0017] Furthermore, at least two second mounting grooves 11 are provided on the inner wall of the body 1, and the at least two second mounting grooves 11 are symmetrically distributed relative to the center point of the cross section of the body 1;

[0018] Each of the second mounting grooves 11 is aligned with the corresponding first mounting groove 42 , and the front end of the electrical terminal 3 protrudes from the first mounting groove 42 in the axial direction and is disposed in the second mounting groove 11 .

[0019] Furthermore, the body 1 is provided with a first accommodating cavity 12, a second accommodating cavity 13 and a third accommodating cavity 14, wherein:

[0020] The second accommodating chamber 13 is located between the first accommodating chamber 12 and the third accommodating chamber 14;

[0021] The second mounting groove 11 is disposed on the side wall corresponding to the first accommodating cavity 12 and the second accommodating cavity 13, and the second mounting groove 11 is communicated with the first accommodating cavity 12;

[0022] A limiting ring 15 is provided between the second accommodating cavity 13 and the side wall of the body 1 , and the second accommodating cavity 13 and the second mounting groove 11 are separated by the limiting ring 15 to prevent the electrical terminal 3 from contacting the ferrule assembly 2 .

[0023] Furthermore, a first buckle hole 16 is provided on the side wall of the third accommodating cavity 14, and a first buckle 43 is provided on the inner sleeve 4;

[0024] The front end of the inner sleeve 4 is accommodated in the third accommodating cavity 14 , and the first buckle 43 is engaged with the first buckle hole 16 , so that the inner sleeve 4 and the third accommodating cavity 14 are engaged and connected.

[0025] Furthermore, every two electrical terminals 3 are combined to form an electrical terminal assembly, and a connecting block 31 is provided between the two electrical terminals 3;

[0026] The surface of the inner sleeve 4 is provided with at least one locking block 44 and at least one mounting position 45, the mounting position 45 is arranged in a direction extending away from the first mounting groove 42, the locking block 44 is arranged between two first mounting grooves 42 located on the same side, the connecting block 31 is arranged on the mounting position 45, and the connecting block 31 abuts against the locking block 44.

[0027] Furthermore, at least two cards 46 are provided on the surface of the inner sleeve 4, and each of the positioning blocks 44 is equipped with two of the cards 46. The two cards 46 are arranged on opposite sides of the positioning block 44, and the corresponding first mounting groove 42 is provided between the card 46 and the positioning block 44.

[0028] Furthermore, the optoelectronic hybrid connector also includes a spring 5, a limit block 21 is provided on the ferrule, a spring seat 47 is provided inside the inner sleeve 4, and the spring 5 is sleeved on the ferrule, one end of the spring 5 abuts against the limit block 21, and the other end abuts against the spring seat 47.

[0029] Furthermore, the optoelectronic hybrid connector further comprises a card holder 6 and a cover plate 7, wherein:

[0030] The card base 6 is provided with a second buckle 61, and the cover plate 7 is provided with a second buckle hole 71, and the second buckle 61 is engaged with the second buckle hole 71, so that the card base 6 and the cover plate 7 are engaged and connected;

[0031] The rear portion of the card holder 6 is provided with a through hole 62, which serves as a passage for the cable to enter the card holder 6;

[0032] The space between the card seat 6 and the cover plate 7 is hollow, and is used to accommodate the tail end of the inner sleeve 4, and provide space for the connection between the ferrule assembly 2 and the electrical terminal 3 and the cable.

[0033] Furthermore, the optoelectronic hybrid connector includes four electrical terminals 3 , and the four electrical terminals 3 are symmetrically distributed about the ferrule assembly 2 on the cross section of the body 1 .

[0034] In the present invention, the optoelectronic hybrid connector includes a body 1, a core assembly 2 and at least two electrical terminals 3. The core assembly 2 is arranged at the center of the cross section of the body 1. At least two electrical terminals 3 are symmetrically distributed about the core assembly 2 on the cross section of the body 1. The structural distribution between the electrical terminals 3 and the core assembly 2 is reasonable, which can reduce the stress generated during the plugging and unplugging process of the optoelectronic hybrid connector, and reduce the influence of the electrical terminals 3 on the coupling accuracy of the optical channel of the optical fiber connector during the plugging and unplugging process.

[0035] Furthermore, the optoelectronic hybrid connector provided by the present invention realizes optoelectronic integration in a single optical port space. The ferrule assembly 2 is used to couple optical signals, and the electrical terminal 3 is used to couple electrical signals. The transmission of optical signals and electrical signals can be achieved through an optoelectronic hybrid connector. The optoelectronic hybrid connector is small in size and can be connected to the adapter by one plug and unplug operation, reducing the complexity of the plug and unplug operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0037] Figure 1 It is a schematic diagram of the structure explosion of the body, the ferrule assembly and the electrical terminal provided by an embodiment of the present invention;

[0038] Figure 2 is a side schematic diagram of a main body of an optoelectronic hybrid connector provided by an embodiment of the present invention;

[0039] Figure 3 The embodiment of the present invention provides Figure 2 Schematic diagram of the HH cross-section structure of the middle body;

[0040] Figure 4 is a schematic diagram of the positional relationship between the electrical terminal and the ferrule provided in an embodiment of the present invention;

[0041] Figure 5 It is a schematic diagram of an exploded structure of an optoelectronic hybrid connector provided by an embodiment of the present invention;

[0042] Figure 6 It is a structural schematic diagram of an inner sleeve of an optoelectronic hybrid connector provided by an embodiment of the present invention;

[0043] Figure 7 It is a schematic structural diagram of the combination of an inner sleeve, a ferrule and an electrical terminal provided by an embodiment of the present invention;

[0044] Figure 8 It is a schematic structural diagram of a body, an inner sleeve, a core assembly and an electrical terminal provided by an embodiment of the present invention;

[0045] Fig. 9 It is a structural schematic diagram of a main body of an optoelectronic hybrid connector provided by an embodiment of the present invention;

[0046] Fig.10 The embodiment of the present invention provides Figure 2 Schematic diagram of FF cross-section structure;

[0047] Fig.11 The embodiment of the present invention provides Figure 8 Schematic cross-sectional view of ;

[0048] Fig.12 It is a schematic structural diagram of an electrical terminal of an optoelectronic hybrid connector provided by an embodiment of the present invention;

[0049] Fig.13is a schematic structural diagram of another electrical terminal provided by an embodiment of the present invention;

[0050] Fig.14 The inner sleeve and Fig.13 Schematic diagram of the combined structure of the CEC terminal;

[0051] Fig.15 is a schematic structural diagram of a core plug assembly and a spring provided in an embodiment of the present invention;

[0052] Fig.16 is a cross-sectional schematic diagram of an inner sleeve of an optoelectronic hybrid connector provided by an embodiment of the present invention;

[0053] Fig.17 It is a structural schematic diagram of a card holder and a cover plate of an optoelectronic hybrid connector provided by an embodiment of the present invention;

[0054] Fig.18 This is another structural schematic diagram of a card holder of an optoelectronic hybrid connector provided by an embodiment of the present invention;

[0055] Fig.19 is a structural schematic diagram of an optoelectronic hybrid connector provided by an embodiment of the present invention;

[0056] Fig. 20 is a schematic structural diagram of another optoelectronic hybrid connector provided by an embodiment of the present invention;

[0057] Fig.21 is a schematic diagram of the positional relationship between another electrical terminal and an insert provided by an embodiment of the present invention;

[0058] Fig. 22 This is a schematic diagram of the connection of the optoelectronic hybrid connector provided by an embodiment of the present invention in an optoelectronic hybrid adapter;

[0059] Fig.23 The embodiment of the present invention provides Fig. 22 Schematic diagram of the docking of the internal electrical terminal and the ferrule assembly.

[0060] Among them, the figure markings are: main body 1; second mounting groove 11; first accommodating cavity 12; second accommodating cavity 13; third accommodating cavity 14; limiting ring 15; first buckle hole 16; first spring piece 17; plug assembly 2; limiting block 21; electrical terminal 3; connecting block 31; inner sleeve 4; mounting hole 41; first mounting groove 42; first buckle 43; clamping block 44; mounting position 45; card 46; spring seat 47; spring 5; clamping seat 6; second buckle 61; through hole 62; second spring piece 63; cover plate 7; second buckle hole 71; optoelectronic hybrid adapter 8; optoelectronic hybrid connector 9. DETAILED DESCRIPTION

[0061] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with 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.

[0062] In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "upper", "lower", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0063] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0064] Embodiment 1:

[0065] Embodiment 1 of the present invention provides an optoelectronic hybrid connector, combining Figure 1 to Figure 4 The optoelectronic hybrid connector includes: a body 1 , a ferrule assembly 2 and at least two electrical terminals 3 , wherein at least two of the electrical terminals 3 are arranged inside the body 1 .

[0066] In the cross-sectional layout of the body 1, the ferrule assembly 2 is arranged at the center of the cross-sectional layout of the body 1, and at least two electrical terminals 3 are symmetrically distributed about the ferrule assembly in the cross-sectional layout of the body 1. In actual use, the ferrule assembly 2 is used to couple optical signals; and the electrical terminals 3 are used to couple electrical signals.

[0067] Specific, combined Figure 2 to Figure 4 At least two of the electrical terminals 3 are arranged symmetrically about the center point of the ferrule assembly 2. Figure 3 In the figure, the electric terminals are centrally symmetrical about the center point of the cross section of the body 1. When two electric terminals 3 need to be set, one way is to set them at points A and C, and another way is to set them at points B and D, so as to ensure that the electric terminals 3 are centrally symmetrical about the center point of the cross section of the body 1; when four electric terminals 3 need to be set, they can be set at points A, B, C and D, so as to ensure that the four electric terminals 3 are centrally symmetrical.

[0068] Figure 4 FIG. 1 is a schematic diagram of the arrangement of the electrical terminal 3 and the ferrule assembly 2 on the cross section of the body 1. When two electrical terminals 3 are required, the electrical terminals 3 can be arranged as follows: Figure 4 The electrical terminals are arranged as shown in (a) and (b). When four electrical terminals 3 are required, they can be arranged as follows. Figure 4 The electrical terminals are arranged as shown in (c). When six electrical terminals 3 are required, they can be arranged as follows. Figure 4The electrical terminals are arranged as shown in (d). In general, no matter how many electrical terminals 3 are required, the electrical terminals 3 should be arranged symmetrically about the center of the ferrule assembly 2.

[0069] At this time, the main body 1 is divided into two parts by making an arbitrary dividing line through the center point, and the number of electrical terminals 3 in the two parts is the same, which means that when plugging and unplugging the optoelectronic hybrid connector, the forces on the two parts of the main body 1 are basically the same, so as to reduce the influence of the stress generated by the electrical terminals 3 when plugging and unplugging on the coupling accuracy of the ferrule assembly 2. However, when the electrical terminals 3 are set eccentrically (for example, two electrical terminals are set at point A and point B), the number of electrical terminals 3 in the two parts is necessarily inconsistent. The electrical terminals 3 are set eccentrically with respect to the ferrule assembly 2, which will cause the main body 1 to be eccentrically stressed when plugging and unplugging the optoelectronic hybrid connector, and then cause the ferrule assembly 2 to be eccentrically stressed, reducing the coupling accuracy of the ferrule assembly 2.

[0070] In the embodiment of the present invention, the structural distribution between the electrical terminal 3 and the ferrule assembly 2 is reasonable, which can reduce the stress generated during the plugging and unplugging process of the optoelectronic hybrid connector, and reduce the influence of the electrical terminal 3 on the coupling accuracy of the optical channel of the optical fiber connector during the plugging and unplugging process.

[0071] The optoelectronic hybrid connector provided in the embodiment of the present invention realizes optoelectronic integration in a single optical port space, and the transmission of optical signals and electrical signals can be realized through one optoelectronic hybrid connector; the optoelectronic hybrid connector is small in size and can be connected to the adapter by one plug and unplug operation, thereby reducing the complexity of the plug and unplug operation.

[0072] In order to fix the insert assembly 2 and the electrical terminal 3, the Figure 5 to Figure 7 The optoelectronic hybrid connector further includes an inner sleeve 4 , a front end of which is accommodated in the body 1 , and the inner sleeve 4 is snap-connected with the body 1 .

[0073] like Figure 6 and Figure 7 As shown, a mounting hole 41 is provided on the inner sleeve 4, and the tail end of the plug assembly 2 is accommodated in the mounting hole 41; at least two first mounting grooves 42 are also provided on the surface of the inner sleeve 4, and at least two of the first mounting grooves 42 are symmetrically distributed relative to the center of the mounting hole 41, and the rear end of the electrical terminal 3 is arranged on the corresponding first mounting groove 42.

[0074] The size of the front end of the mounting hole 41 is larger than that of the ferrule assembly 2 , and the size of the rear end of the mounting hole 41 is adapted to the size of the tail of the ferrule assembly 2 so as to limit the position of the ferrule assembly 2 .

[0075] like Figure 8As shown, a structural diagram showing the main body 1, the core assembly 2, the electrical terminal 3 and the inner sleeve 4 assembled together is shown, wherein when the inner sleeve 4 is arranged on the main body 1, the rear end of the electrical terminal 3 is located on the surface of the inner sleeve 4 and the outside of the main body 1, the middle part of the electrical terminal 3 is located between the inner sleeve 4 and the main body 1, and the front end of the electrical terminal 3 is located in the main body 1. In addition to effectively fixing the electrical terminal 3 and the core assembly 2, this arrangement is also convenient for replacing the corresponding electrical terminal 3 or the core assembly 2 when a fault occurs in the optoelectronic hybrid connector.

[0076] In order to further fix the electrical terminal 3, the Figure 3 and Fig. 9 At least two second mounting grooves 11 are arranged on the inner wall of the body 1, and the at least two second mounting grooves 11 are symmetrically distributed relative to the center point of the cross section of the body 1. Each second mounting groove 11 is aligned with the corresponding first mounting groove 42, and the front end of the electrical terminal 3 protrudes from the first mounting groove 42 in the axial direction and is arranged in the second mounting groove 11.

[0077] Among them, combined Figure 3 , the cross section of the body 1 refers to the effective cross section for arranging the electric terminal 3. At the same time, the front end of the electric terminal 3 is fixed in the second mounting groove 11, and the electric terminal 3 does not protrude from the body 1, so as to avoid the electric terminal 3 being exposed to the outside, and also reduce the probability of the electric terminal 3 causing harm to the user during use.

[0078] In an optional solution, the number of the second mounting slots 11 is consistent with the number of the first mounting slots 42 , and the number of the second mounting slots 11 and the first mounting slots 42 is equal to the number of the electrical terminals 3 .

[0079] In another optional solution, the number of the second mounting slots 11 and the first mounting slots 42 is greater than the number of the electrical terminals 3, and the redundant second mounting slots 11 and the first mounting slots 42 are used as expansion channels for installing indicator lights or control signals.

[0080] In order to make the structure of the body 1 more reasonable to accommodate the insert assembly 2, the body 1 and the electrical terminal 3, the Figures 9 to 11 The main body 1 is provided with a first accommodating cavity 12, a second accommodating cavity 13 and a third accommodating cavity 14, wherein:

[0081] The second accommodating cavity 13 is located between the first accommodating cavity 12 and the third accommodating cavity 14 ; the second mounting groove 11 is disposed on the side walls corresponding to the first accommodating cavity 12 and the second accommodating cavity 13 , and the second mounting groove 11 is communicated with the first accommodating cavity 12 .

[0082] The third accommodating cavity 14 is used to accommodate the front end of the inner sleeve 4; the second accommodating cavity 13 is used to accommodate the ferrule assembly 2 and limit the ferrule assembly 2; the first accommodating cavity 12 is used to accommodate the ferrule assembly 2 and the electrical terminal 3 in the second mounting groove 11. The ferrule assembly 2 passes through the second accommodating cavity 13 and the first accommodating cavity 12, and the end of the ferrule assembly 2 protrudes from the body 1, so as to facilitate the connection between the ferrule assembly 2 and other devices.

[0083] In addition, the significance of the second mounting groove 11 being connected to the first accommodating cavity 12 is that, while the electrical terminal 3 is accommodated in the second mounting groove, the cross-sectional area of ​​the entire body 1 can be reduced in design. Since the first accommodating cavity 12 needs to be connected to other devices and accommodate other devices, the volume of the first accommodating cavity 12 is determined. If the second mounting groove 11 is not connected to the first accommodating cavity 12, an additional solid side wall is required between the second mounting groove 11 and the first accommodating cavity 12, and the cross-sectional area of ​​the body 1 needs to be expanded. Therefore, the design of the second mounting groove 11 being connected to the first accommodating cavity 12 can reduce the cross-sectional area of ​​the body 1 and reduce the volume of the body 1 at the design level.

[0084] A limiting ring 15 is provided between the second accommodating cavity 13 and the side wall of the body 1 , and the second accommodating cavity 13 and the second mounting groove 11 are separated by the limiting ring 15 to prevent the electrical terminal 3 from contacting the ferrule assembly 2 .

[0085] The significance of preventing the electrical terminal 3 from contacting the ferrule assembly 2 is to prevent the electrical terminal 3 from interfering with the optical signal transmission of the ferrule assembly 2. In addition, the space between the limit rings 15 is the second accommodating cavity 13, and the ferrule assembly 2 abuts against the second accommodating cavity 13 to prevent the ferrule assembly 2 from falling out of the body 1.

[0086] In order to fix the inner sleeve 4 on the body 1, Figure 6 , Fig. 9 and Fig.10 The side wall of the third accommodating cavity 14 is provided with a first buckle hole 16, and the inner sleeve 4 is provided with a first buckle 43 (such as Figure 5 The front end of the inner sleeve 4 is accommodated in the third accommodating cavity 14, and the first buckle 43 is engaged with the first buckle hole 16, so that the inner sleeve 4 and the third accommodating cavity 14 are engaged and connected.

[0087] Among them, two first buckles 43 are arranged on the two opposite side walls of the inner sleeve 4, and two first buckle holes 16 are arranged on the two corresponding side walls of the main body 1, so that the inner sleeve 4 is snap-connected to the main body 1. Compared with other connection methods, the snap connection can facilitate the assembly and disassembly of the main body 1 and the inner sleeve 4. The arrangement of two first buckles 43 and two first buckle holes 16 can achieve a good fixing effect while simplifying the arrangement of the connection structure between the inner sleeve 4 and the main body 1.

[0088] In order to simplify the connection between the electrical terminal 3 and the cable, Fig.12 In this embodiment, every two electrical terminals 3 are combined to form an electrical terminal assembly, and a connecting block 31 is provided between the two electrical terminals 3 .

[0089] Specifically, the connection block 31 is disposed in the middle part of the tail ends of the two electrical terminals 3 to combine the two electrical terminals 3 to form the electrical terminal assembly. At this time, the connection block 31 can be used to connect with the cable, so that each electrical terminal 3 does not need to be connected to the cable separately. At the same time, the electrical terminal 3 can be better fixed through the matching structure on the connection block 31 and the inner sleeve 4.

[0090] In order to cooperate with the electrical terminal assembly formed by the two electrical terminals 3, the Figure 6 In this embodiment, at least one locking block 44 and at least one mounting position 45 are provided on the surface of the inner sleeve 4. The mounting position 45 is arranged in a direction extending away from the first mounting groove 42. The locking block 44 is arranged between two first mounting grooves 42 located on the same side. The connecting block 31 is arranged on the mounting position 45, and the connecting block 31 abuts against the locking block 44.

[0091] The shapes of the mounting position 45 and the connecting block 31 are adapted to each other, and the mounting position 45 and the first mounting groove 42 are connected to accommodate the electrical terminal assembly.

[0092] Combination Figure 6 In order to guide the electrical terminal 3 when installing the electrical terminal 3, at least two cards 46 are provided on the surface of the inner sleeve 4, and each of the card blocks 44 is equipped with two cards 46, and the two cards 46 are arranged on opposite sides of the card block 44, and the corresponding first installation groove 42 is provided between the card 46 and the card block 44.

[0093] Among them, the card 46 and the locking block 44 protrude from the surface of the inner sleeve 4. When installing the electrical terminal 3, the two electrical terminals 3 of the electrical terminal assembly need to be aligned with the first installation grooves 42 on both sides of the locking block 44 respectively. At this time, the card 46 and the locking block 44 can play a guiding role, and when the electrical terminal 3 is accommodated in the first installation groove 42, the card 46 and the locking block 44 can also limit the electrical terminal 3.

[0094] Combination Fig.12 In order to ensure symmetry, the optoelectronic hybrid connector may include two electrical terminal assemblies (i.e., four electrical terminals), and four first mounting grooves 42 are correspondingly arranged on the inner sleeve, and each two first mounting grooves 42 correspond to one electrical terminal assembly. The specific assembly form is as follows: Figure 7 As shown, correspondingly, four second mounting grooves 11 are correspondingly arranged on the body 1, and every two second mounting grooves 11 correspond to one electrical terminal assembly. The specific assembly form is as follows Figure 7 shown.

[0095] When the optoelectronic hybrid connector comprises two electrical terminals 3, as Fig.13 As shown, two electrical terminals 3 are independently arranged. In order to ensure that the electrical terminals 3 are symmetrical about the center of the plug assembly, as shown in FIG. Fig.14 As shown, two electrical terminals 3 are arranged at diagonal first mounting grooves 42 on the inner sleeve.

[0096] In an alternative embodiment, in combination Fig.13 There is no connection block 31 between the electrical terminals 3, and the electrical terminals 3 can be provided separately, so that the electrical terminals 3 can be provided in the optoelectronic hybrid connector in a more diverse manner. In addition, there is no need to provide structures such as a positioning block and a mounting groove, so as to simplify the structure of the optoelectronic hybrid connector. Fig.14 , showing the assembly structure of the electrical terminal 3 and the inner sleeve 4.

[0097] In this embodiment, in order to make the front end of the electrical terminal 3 better connected to the socket, a triangle is provided at the front end of the electrical terminal 3. When docking, the end face of the triangle can play a guiding role, and the electrical terminal 3 can be more conveniently docked with other devices. In an optional embodiment, the front end of the electrical terminal 3 can be an arc shape, and the arc-shaped end face can provide a certain plug-in elasticity while playing a guiding role.

[0098] In order to fix the ferrule assembly 2 and provide the ferrule assembly 2 with a certain plug-in and pull-out elasticity during connection, the Fig.15 and Fig.16The optoelectronic hybrid connector also includes a spring 5, a limit block 21 is provided on the ferrule, a spring seat 47 is provided inside the inner sleeve 4, and the spring 5 is sleeved on the ferrule, one end of the spring 5 abuts against the limit block 21, and the other end abuts against the spring seat 47.

[0099] Specifically, the diameter of the mounting hole 41 of the inner sleeve 4 is variable, and the diameter of the front part is larger, so that the spring seat 47 is formed inside the inner sleeve 4; at the same time, the size of the front end of the second accommodating cavity 13 is smaller than the size of the limit block 21; the spring 5 abuts on the limit block 21, and the limit block 21 abuts in the second accommodating cavity 13, so that the core assembly 2 abuts between the inner sleeve 4 and the body 1. At the same time, during the plugging and unplugging process of the optoelectronic hybrid connector, the core assembly 2 can be compressed and rebounded to a certain extent in the optoelectronic hybrid connector under the action of the spring 5, so as to facilitate the connection between the optoelectronic hybrid connector and various devices.

[0100] In order to protect the electrical terminal 3 and the insert, Fig.17 , the optoelectronic hybrid connector also includes a card seat 6 and a cover plate 7, wherein:

[0101] The holder 6 is provided with a second buckle 61 , and the cover plate 7 is provided with a second buckle hole 71 . The second buckle 61 is engaged with the second buckle hole 71 , so that the holder 6 and the cover plate 7 are engaged and connected.

[0102] Among them, at least two second buckles 61 are arranged opposite to each other on both sides of the holder 6, and at least two second buckle holes 71 are arranged opposite to each other on both sides of the cover plate 7, so that the holder 6 and the cover plate 7 are snap-connected. The snap-connection method facilitates the installation and removal between the cover plate 7 and the holder 6, so as to facilitate the fault detection and replacement of the electrical terminal 3 and the ferrule assembly 2 when a fault occurs.

[0103] The rear end of the card seat 6 is provided with a through hole 62 as a passage for the cable to enter the card seat 6. The space between the card seat 6 and the cover plate 7 is hollow for accommodating the rear end of the inner sleeve 4 and providing space for the connection between the ferrule assembly 2 and the electrical terminal 3 and the cable.

[0104] Among them, combined Fig.18 The cable enters between the card holder 6 and the cover plate 7 through the through hole 62. There are three through holes 62. The middle through hole 62 serves as a passage for the optical fiber cable to enter the optoelectronic hybrid connector. The upper through hole 62 and the lower through hole 62 serve as passages for the electrical cable to enter the optoelectronic hybrid connector. The upper through hole 62 corresponds to the electrical terminal on the upper surface of the inner sleeve, and the lower through hole 62 corresponds to the electrical terminal on the lower surface of the inner sleeve.

[0105] Structurally, the holder 6 is designed to be relatively high, and sufficient space is reserved between the holder 6 and the cover plate 7 to facilitate the connection of cables with the electrical terminal 3 and the ferrule assembly 2 .

[0106] In this embodiment, in order to increase the number of electrical connection paths between the optoelectronic hybrid connector and other devices, the optoelectronic hybrid connector includes four electrical terminals 3 , and the four electrical terminals 3 are symmetrically distributed about the ferrule assembly 2 on the cross section of the body 1 .

[0107] Among them, one electrical terminal assembly is used to connect the negative pole of the power supply, and the other electrical terminal assembly is used to connect the positive pole of the power supply. The two electrical terminals 3 in the same electrical terminal assembly are responsible for one electrode. The significance of this is that multiple electrical terminals 3 are responsible for the same electrode to improve the stability of the electrical connection between other devices of the optoelectronic hybrid connector. Even if one of the two electrical terminals 3 has poor contact, it will not cause failure of the electrical connection.

[0108] When determining the total number of electrical terminals in the optoelectronic hybrid connector, the relationship between the current size of the power supply and the impedance of the electrical terminals needs to be considered. Each of the electrical terminals 3 can flow a current of a predetermined size. A predetermined number of electrical terminals 3 can be set so that all electrical terminals 3 can flow a current of a predetermined number multiplied by a predetermined size. For example, when a current of 1A flows through a standard electrical terminal 3, the heating of the electrical terminal 3 is within an acceptable range. When a current of 2A flows through the electrical terminal 3, the heating will be too serious, resulting in poor electrical connection effect and even damage to the optoelectronic hybrid connector. When the power supply current is 2A, two electrical terminals 3 are required to be responsible for the current transmission of one electrode, so that the current flowing in each electrical terminal is 1A, so that the heating of the electrical terminal 3 is controllable. When the power supply current is 4A, two electrical terminals 3 are required to be responsible for the current transmission of one electrode, so that the current flowing in each electrical terminal 3 is 1A, so that the heating of the electrical terminal 3 is controllable.

[0109] In order to fix the inner sleeve 4 in the card seat 6 and the cover plate 7, the card seat 6 and the cover plate 7 are provided with card slots, and the card 46 and the card block 44 of the inner sleeve 4 are accommodated in the card slots, so that the inner sleeve 4 is fixed between the card seat 6 and the cover plate 7.

[0110] In order to facilitate the plugging and unplugging of the optoelectronic hybrid connector, Fig.19 In this embodiment, a first spring piece 17 is disposed on the body 1, and a second spring piece 63 is disposed on the holder 6. The first spring piece 17 and the second spring piece 63 are in a gripping state.

[0111] Among them, when the body 1 is inserted into the socket, a part of the first spring piece 17 is engaged in the socket, and when the optoelectronic hybrid connector is pulled out, the first spring piece 17 needs to be pressed down to release the engagement state between the first spring piece 17 and the socket, and the first spring piece 17 is left outside the socket for a small part, so that the operator has less operating space when pressing the first spring piece 17. The significance of setting the second spring piece 63 is that the first spring piece 17 can be indirectly pressed through the second spring piece 63, so that the first spring piece 17 and the socket are released from the engagement state, which increases the operating area when the optoelectronic hybrid connector is pulled out and the complexity of the operation is reduced. In addition, when not under force, the first spring piece 17 and the second spring piece 63 are in a gripping state.

[0112] In an alternative embodiment, if Fig. 20 As shown, the two bodies 1 are integrated in one card holder 6, and each body 1 is equipped with a core assembly 2 and at least two electrical terminals 3. At this time, the optoelectronic hybrid connector has two plugs, and the optoelectronic hybrid connector can be connected to a device with two interfaces.

[0113] Since both plugs can transmit optical and electrical signals, a preferred solution is that each plug is responsible for the current transmission of one electrode, so that the electrical connection with other devices is completed through the two plugs. Each plug is responsible for the transmission of different optical signals, so that the transmission of two optical signals is completed through the two plugs; in this case, combined with Fig.21 ,like Fig.21 As shown in (a) and (b), in order to ensure that the core assembly 2 is subjected to balanced force during the plugging and unplugging process, the electrical terminals 3 in each plug are symmetrical about the center of the corresponding core assembly 2. At the same time, between the two plugs, the electrical terminals 3 are symmetrical about the axis between the two plugs.

[0114] When four electrical terminals 3 are provided in each plug, in one case, one electrical terminal assembly in each plug is used for electrical connection, and the remaining electrical terminal assemblies are used for transmitting control signals. In another case, two electrical terminal assemblies in each plug are used for electrical connection, and the two electrical terminal assemblies are connected via a connecting block 31, or via welding, or in other ways.

[0115] In this embodiment, when assembling the optoelectronic hybrid connector, first, the spring 5 is sleeved on the ferrule assembly 2, the ferrule assembly 2 is pushed into the mounting hole 41, and the ferrule assembly 2 is connected to the corresponding cable; the electrical terminal assembly is connected to the corresponding cable, and the electrical terminal assembly is installed on the inner sleeve 4. At this time, the connecting block 31 is located on the mounting position 45, and the electrical terminal 3 is located in the first mounting groove 42.

[0116] Then push the inner sleeve 4 into the main body 1 from the rear of the main body 1, and the first buckle 43 is snapped into the first buckle hole 16, so that the inner sleeve 4 is fixed in the main body 1; at this time, the spring 5 abuts the limit block 21 in the second accommodating cavity 13, so that the core assembly 2 is fixed between the main body 1 and the inner sleeve 4, and the end of the core assembly 2 passes through the first accommodating cavity 12 of the main body 1 and is exposed at the front end of the main body 1; the first mounting groove 11 and the second mounting groove 42 are connected, and the electrical terminal 3 is accommodated in the second mounting groove 11 and the first mounting groove 42.

[0117] Finally, the card base 6 and the cover plate 7 are installed on the inner sleeve 4. At this time, the second buckle 61 is inserted into the second buckle hole 71, so that the card base 6 and the cover plate 7 are snap-connected. The card 46 and the card block 44 are located in the limiting groove formed by the combination of the card base 6 and the cover plate 7, so that the inner sleeve 4 is fixed between the card base 6 and the cover plate 7.

[0118] The above describes the specific structure of the optoelectronic hybrid connector. The following describes the connection and matching between the optoelectronic hybrid connector and the corresponding optoelectronic hybrid adapter in this embodiment.

[0119] Combination Fig. 22 and Fig.23 ,like Fig. 22 As shown, two optoelectronic hybrid connectors 9 are inserted into the plug-in cavity of the optoelectronic hybrid adapter 8, and the two optoelectronic hybrid connectors 9 are connected through the optoelectronic hybrid adapter 8 to realize the transmission of optical signals and electrical signals. At this time, a part of the body 1 is accommodated in the plug-in cavity, as shown in FIG. Fig.23 As shown, the electrical terminal 3 abuts against the electrical terminal in the optoelectronic hybrid adapter 8 to complete the electrical connection, and the ferrule components 3 in the two optoelectronic hybrid connectors 9 are docked in the optoelectronic hybrid adapter to complete the coupling of the optical channel.

[0120] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An optoelectronic hybrid connector, characterized in that: include: A body (1), a core assembly (2) and at least two electrical terminals (3), wherein at least two of the electrical terminals (3) are arranged inside the body (1), wherein: In the cross-sectional layout of the body (1), the ferrule assembly (2) is arranged at the center of the cross-sectional view of the body (1), and at least two electrical terminals (3) are symmetrically distributed about the ferrule assembly (2) in the cross-sectional view of the body (1); The ferrule assembly (2) is used for coupling optical signals; The electrical terminal (3) is used to couple electrical signals; The optoelectronic hybrid connector further comprises an inner sleeve (4), the front end of the inner sleeve (4) being accommodated in the body (1), and the inner sleeve (4) being snap-fitted and connected to the body (1); a mounting hole (41) is provided on the inner sleeve (4), and the rear end of the plug core assembly (2) is accommodated in the mounting hole (41); at least two first mounting grooves (42) are also provided on the surface of the inner sleeve (4), and the at least two first mounting grooves (42) are symmetrically distributed relative to the center of the mounting hole (41), and the rear end of the electrical terminal (3) is arranged on the corresponding first mounting groove (42).

2. The optoelectronic hybrid connector according to claim 1, characterized in that: At least two second mounting grooves (11) are arranged on the inner wall of the body (1), and the at least two second mounting grooves (11) are symmetrically distributed relative to the center point of the cross section of the body (1); Each of the second mounting grooves (11) is aligned with the corresponding first mounting groove (42), and the front end of the electrical terminal (3) protrudes axially from the first mounting groove (42) and is arranged in the second mounting groove (11).

3. The optoelectronic hybrid connector according to claim 2, characterized in that: The body (1) is provided with a first accommodating cavity (12), a second accommodating cavity (13) and a third accommodating cavity (14), wherein: The second accommodating chamber (13) is located between the first accommodating chamber (12) and the third accommodating chamber (14); The second installation groove (11) is arranged on the side wall corresponding to the first accommodating cavity (12) and the second accommodating cavity (13), and the second installation groove (11) is in communication with the first accommodating cavity (12); A limiting ring (15) is provided between the second accommodating cavity (13) and the side wall of the body (1); the second accommodating cavity (13) and the second mounting groove (11) are separated by the limiting ring (15) to prevent the electrical terminal (3) from contacting the ferrule assembly (2).

4. The optoelectronic hybrid connector according to claim 3, characterized in that: A first buckle hole (16) is provided on the side wall of the third accommodating cavity (14), and a first buckle (43) is provided on the inner sleeve (4); The front end of the inner sleeve (4) is accommodated in the third accommodating cavity (14), and the first buckle (43) is engaged with the first buckle hole (16), so that the inner sleeve (4) and the third accommodating cavity (14) are engaged and connected.

5. The optoelectronic hybrid connector according to claim 1, characterized in that: Every two electrical terminals (3) are combined to form an electrical terminal assembly, and a connecting block (31) is provided between the two electrical terminals (3); The surface of the inner sleeve (4) is provided with at least one locking block (44) and at least one mounting position (45); the mounting position (45) is arranged in a direction extending away from the first mounting groove (42); the locking block (44) is arranged between two first mounting grooves (42) located on the same side; the connecting block (31) is arranged on the mounting position (45), and the connecting block (31) abuts against the locking block (44).

6. The optoelectronic hybrid connector according to claim 5, characterized in that: At least two cards (46) are arranged on the surface of the inner sleeve (4), and each of the card blocks (44) is equipped with two of the cards (46). The two cards (46) are arranged on opposite sides of the card block (44), and a corresponding first mounting groove (42) is arranged between the card (46) and the card block (44).

7. The optoelectronic hybrid connector according to claim 1, characterized in that: The optoelectronic hybrid connector also includes a spring (5), a limit block (21) is provided on the plug core, a spring seat (47) is provided inside the inner sleeve (4), the spring (5) is sleeved on the plug core, one end of the spring (5) abuts against the limit block (21), and the other end abuts against the spring seat (47).

8. The optoelectronic hybrid connector according to claim 1, characterized in that: The optoelectronic hybrid connector further comprises a card seat (6) and a cover plate (7), wherein: The card base (6) is provided with a second buckle (61), and the cover plate (7) is provided with a second buckle hole (71), and the second buckle (61) is engaged with the second buckle hole (71) so that the card base (6) and the cover plate (7) are engaged and connected; A through hole (62) is provided at the rear of the card seat (6) to serve as a passage for the cable to enter the card seat (6); The space between the card seat (6) and the cover plate (7) is hollow, and is used to accommodate the tail end of the inner sleeve (4), and to provide space for the connection between the ferrule assembly (2) and the electrical terminal (3) and the cable.

9. The optoelectronic hybrid connector according to any one of claims 1 to 8, characterized in that: The optoelectronic hybrid connector comprises four electrical terminals (3), and the four electrical terminals (3) are symmetrically distributed with respect to the ferrule assembly (2) on a cross section of the body (1).

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