Electrically isolated Receptacle assembly

Abstract

The utility model provides an electrically isolated Receptacle assembly, which comprises an insertion core, an adapter sleeve, an optical device shell member and an optical module shell member, and is characterized in that the adapter sleeve is sleeved on the periphery of a first preset part of the insertion core, and a second preset part of the insertion core is located outside the adapter sleeve; the optical module shell part is sleeved on the periphery of the adapter sleeve, and the optical module shell part is also sleeved on the periphery of the second preset part of the insertion core; the optical device housing member is sleeved on the periphery of the optical module housing member. According to the utility model, the optical device shell member is sleeved on the periphery of the optical module shell member, so that the length and the space occupied by the original optical device shell member in the middle axis direction are saved, and the length of the insertion part of the insertion core in the adapter sleeve is longer, thereby improving the coaxiality between the insertion core and the adapter sleeve, and improving the reliability of the optical module. And the accuracy of the optical signal emitted by the optical fiber in the insertion core is improved.

Description

Technical Field

[0001] This utility model relates to the field of fiber optic connector structure design technology, and in particular to an electrically isolated Receptacle component. Background Technology

[0002] In the existing Receptacle components, such as Figure 1 As shown, to interface the optical device and the optical module, the ferrule 1' on the optical device side needs to be inserted into the adapter sleeve 2' on the optical module side. The optical signal is then output to the optical module through the optical fiber in the ferrule 1'. Figure 1 As shown, an optical device housing 3' is fitted around the ferrule 1', and an optical module housing 4' is fitted around the adapter sleeve 2'. The end face of the optical device housing 3' is positioned opposite to the end face of the optical module housing 4', and insulating glue is filled between the two end faces to prevent contact and ensure mutual insulation between the optical device housing 3' and the optical module housing 4', thus preventing electrical connections. This structure results in a portion of the ferrule 1' being located outside the optical module housing 4', leading to a shorter insertion length of the ferrule 1' into the adapter sleeve 2' (marked as L in the figure). This results in poor coaxiality between the ferrule 1' and the adapter sleeve 2', causing poor directionality and interchangeability of the external optical fiber when inserted into the adapter sleeve 2' through the ferrule 1', affecting the judgment of test results in each process during production and customer use.

[0003] Therefore, overcoming the shortcomings of the existing technology is an urgent problem to be solved in this technical field. Utility Model Content

[0004] The problem this invention aims to solve is how to improve the coaxiality between the ferrule and the adapter sleeve in the Receptacle assembly.

[0005] In a first aspect, an electrically isolated Receptacle assembly is provided, comprising: a ferrule 1, an adapter sleeve 2, an optical device housing 3, and an optical module housing 4, wherein:

[0006] The adapter sleeve 2 is fitted around the first preset portion of the plug 1, and the second preset portion of the plug 1 is located outside the adapter sleeve 2;

[0007] The optical module housing 4 is sleeved around the adapter sleeve 2, and the optical module housing 4 is also sleeved around the second preset part of the ferrule 1;

[0008] The optical device housing 3 is sleeved around the optical module housing 4, and there is an insulating structure between the optical device housing 3 and the optical module housing 4.

[0009] Preferably, the length of the first preset part of the ferrule 1 is 1.7±0.1mm.

[0010] Preferably, an insulation layer 5 is arranged between the optical device housing 3 and the optical module housing 4, and the insulation layer 5 is used to isolate the optical device housing 3 and the optical module housing 4.

[0011] Preferably, the optical module housing 4 comprises a first structure 41 and a second structure 42, wherein:

[0012] The first structure 41 is sleeved on the periphery of the adapter sleeve 2, the second structure 42 is sleeved on the periphery of the adapter sleeve 2 and the periphery of the second preset part of the ferrule 1, and the optical device housing 3 is sleeved on the periphery of the second structure 42.

[0013] Preferably, the inner side wall of the second structure 42 is further provided with a first matching groove 421;

[0014] The first structure 41 comprises a hollow first matching body 411 and a second matching body 412, the outer diameter of the first matching body 411 is smaller than the outer diameter of the second matching body 412, so as to form a clearance space matched with the wall thickness of the first matching groove 421, and the first matching body 411 extends into the first matching groove 421.

[0015] Preferably, the inner side wall of the second structure 42 is further provided with a third matching groove 423, the inner wall radius of the third matching groove 423 is smaller than the inner wall radius of the first matching groove 421, and the third matching groove 423 extends to the position of the first matching groove 421;

[0016] The adapter sleeve 2 is inserted into the third matching groove 423 and the first matching body 411.

[0017] Preferably, the end of the ferrule 1 away from the adapter sleeve 2 is provided with a matching part 11;

[0018] The inner side wall of the second structure 42 is further provided with a fourth matching groove 424, the fourth matching groove 424 extends to the port position of the second structure 42, and the matching part 11 is located in the fourth matching groove 424.

[0019] Preferably, the periphery of the second structure 42 is further provided with a limiting table 43, the limiting table 43 is spaced apart from the optical device housing 3, and the limiting table 43 is used to cooperate with an external optical device.

[0020] Preferably, the end of the optical device housing 3 towards the limiting table 43 is filled with insulation glue 6 between the limiting table 43.

[0021] Preferably, the assembling surface of the optical device housing 3 and the assembling surface of the optical module housing 4 are both insulated.

[0022] The utility model provides a kind of electrically isolated Receptacle assembly, comprising: ferrule 1, adapter sleeve 2, optical device housing 3 and optical module housing 4, wherein: the adapter sleeve 2 is sleeved on the periphery of the first preset portion of the ferrule 1, and the second preset portion of the ferrule 1 is located outside the adapter sleeve 2;The optical module housing 4 is sleeved on the periphery of the adapter sleeve 2, and the optical module housing 4 is also sleeved on the periphery of the second preset portion of the ferrule 1;The optical device housing 3 is sleeved on the periphery of the optical module housing 4;By the optical device housing 3 being sleeved on the periphery of the optical module housing 4, the length and space that the optical device housing 3 originally needs to occupy in the central axis direction are saved, and the length of the insertion part of the ferrule 1 in the adapter sleeve 2 is longer, so that the coaxiality between the ferrule 1 and the adapter sleeve 2 is improved, and the accuracy of the optical signal emitted by the optical fiber in the ferrule 1 is further improved.Simultaneously, there is an insulation structure between the optical device housing 3 and the optical module housing 4, which can ensure the insulation between the two. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.

[0024] Figure 1 A device schematic view of an existing electrically isolated Receptacle assembly is provided for the embodiments of the utility model;

[0025] Figure 2 A structure schematic view of an electrically isolated Receptacle assembly is provided for the embodiments of the utility model;

[0026] Figure 3 Another structure schematic view of an electrically isolated Receptacle assembly is provided for the embodiments of the utility model;

[0027] Figure 4 A structure schematic view of an electrically isolated Receptacle assembly after the first structural member is hidden is provided for the embodiments of the utility model;

[0028] Figure 5The structure schematic view of the Receptacle assembly with electric isolation provided by the embodiment of the utility model hides the second structural member and the optical device housing member;

[0029] Figure 6 The structure schematic view of another Receptacle assembly with electric isolation provided by the embodiment of the utility model hides the first structural member;

[0030] Figure 7 The structure schematic view of the Receptacle assembly with electric isolation provided by the embodiment of the utility model;

[0031] Among them, the drawing number is as follows:

[0032] Inserting core 1;Fitting member 11;Adapter sleeve 2;Optical device housing member 3;Optical module housing member 4;First structural member 41;First fitting body 411;Second fitting body 412;Second structural member 42;First fitting groove 421;Third fitting groove 423;Fourth fitting groove 424;Limiting table 43;Insulating layer 5;Insulating glue 6. Specific implementation

[0033] In order to make the purpose, technical scheme and advantage of the utility model more clearly and clearly, the utility model is further described in detail below by combining with the drawings and embodiment.It should be understood that the specific embodiment described here is only used to explain the utility model, and is not used to limit the utility model.

[0034] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it can not be understood as a limitation to the present disclosure.

[0035] In the description of the utility model, the terms "first", "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, unless otherwise specified, the meaning of "a plurality of" is two or more. In addition, for example, in the description, the same type of nouns will also be described as two independent individuals by adding "A", "B" at the end, in which case the features limited by "A", "B" are only used for the purpose of distinguishing the same type of individual description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features.

[0036] In describing some embodiments, "coupled", "coupling" and "connected" and their derivatives can be used. For example, the term "connected" can be used to describe some embodiments to indicate that two or more components have direct physical or electrical contact with each other. For another example, the term "coupling" can be used to describe some embodiments to indicate that two or more components have direct physical or electrical contact. However, the term "connected" or "coupled" can also refer to two or more components that do not have direct contact with each other, but still cooperate or interact with each other, such as "optical coupling", "wireless connection" and the like. The embodiments disclosed herein are not necessarily limited to the content of the utility model.

[0037] In the description of the utility model, the expression "A and / or B" in which A and B are used to represent specific feature content in the form of expression, and the corresponding expression includes the following three combinations: only A, only B, and the combination of A and B.

[0038] In the utility model, "about", "approximately" or "approximately" includes the value described and the average value within the acceptable deviation range of the specific value, wherein the acceptable deviation range is determined by the person skilled in the art considering the measurement being discussed and the error related to the measurement of the specific quantity, that is, the limitation of the measurement system.

[0039] Unless the context otherwise requires, throughout the specification and claims, the term "comprising" is interpreted as openly inclusive, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiment," "example," "specific example," or "some examples" are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples; that is, although they may be incorporated into embodiments or examples using the above terms for reasons such as order and position, it does not limit them to be incorporated in combination by a single embodiment or example.

[0040] Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0041] Example 1:

[0042] This embodiment provides an electrically isolated Receptacle component, such as... Figure 2 As shown, it includes: a ferrule 1, an adapter sleeve 2, an optical device housing 3, and an optical module housing 4, wherein: the adapter sleeve 2 is fitted around the first preset portion of the ferrule 1, and the second preset portion of the ferrule 1 is located outside the adapter sleeve 2; the optical module housing 4 is fitted around the adapter sleeve 2, and the optical module housing 4 is also fitted around the second preset portion of the ferrule 1; the optical device housing 3 is fitted around the optical module housing 4, and there is an insulating structure between the optical device housing 3 and the optical module housing 4.

[0043] In this embodiment, the insert 1 is cylindrical, and the adapter sleeve 2, optical device housing 3, and optical module housing 4 are all hollow cylinders. Both the insert 1 and the adapter sleeve 2 are made of insulating material, and both can be made of zirconium oxide. The first predetermined portion of the insert 1 is the part into the adapter sleeve 2, and the second predetermined portion of the insert 1 is the part outside the adapter sleeve 2. The insert 1 and the adapter sleeve 2 can slide together. Both the optical device housing 3 and the optical module housing 4 can be metal parts, and in this embodiment, they can be made of stainless steel. The mounting surfaces of both the optical device housing 3 and the optical module housing 4 are insulated.

[0044] The electrically isolated receptacle assembly provided in the embodiment is usually the part of the optical device and the optical module in the actual application scene, wherein the ferrule 1, the adapter sleeve 2 and the optical device housing 3 can be regarded as the optical device part, and the optical module housing 4 can be regarded as the optical module part; the ferrule 1 needs to be inserted into the adapter sleeve 2, the central axis position of the ferrule 1 is provided with the optical fiber of the optical device, the optical signal is transmitted to the adapter sleeve 2 through the optical fiber, so as to transmit the optical signal of the optical device to the optical module, and the coaxiality between the ferrule 1 and the adapter sleeve 2 needs to be ensured in this process, so as to ensure the accuracy of the optical signal transmission; considering the difference between the peripheral size of the ferrule 1 and the inner size of the adapter sleeve 2, the greater the depth of the ferrule 1 inserted into the adapter sleeve 2, the higher the coaxiality between the ferrule 1 and the adapter sleeve 2, and the smaller the depth of the ferrule 1 inserted into the adapter sleeve 2, the lower the coaxiality between the ferrule 1 and the adapter sleeve 2, so in order to ensure the quality of the optical signal transmission, the greater the depth of the ferrule 1 inserted into the adapter sleeve 2, but since the optical device housing 3 and the optical module housing 4 are arranged outside the ferrule 1 and the adapter sleeve 2 and need to be matched or connected with each other, the optical device housing 3 and the optical module housing 4 need to be designed with corresponding structures to support the matching or connection between the structures.

[0045] In the embodiment, since the optical device housing 3 is arranged outside the optical module housing 4, the length and space originally required by the optical device housing 3 are saved, so on this basis, the ferrule 1 can be inserted into the adapter sleeve 2 to a greater length, so as to improve the coaxiality between the ferrule 1 and the adapter sleeve 2, and further improve the accuracy of the optical signal emitted by the optical fiber in the ferrule 1.

[0046] On the basis of the above design, the embodiment provides a feasible length of the ferrule 1 inserted into the adapter sleeve 2, and the length of the first preset part of the ferrule 1 is 1.7±0.1 mm.

[0047] Further, in the embodiment, since there is no electric connection relationship between the optical device and the optical module, on the one hand, the fitting surface of the optical device housing 3 and the optical module housing 4 needs to be insulated to form an insulation structure. The implementation method of the insulation treatment includes but is not limited to: vapor deposition layer, anodic oxidation, surface quenching, laser surface strengthening and shot blasting, etc. In order to further improve the insulation effect, the optical device housing 3 and the optical module housing 4 can be completely isolated by an insulation material, so the embodiment also relates to the following design:

[0048] As Figure 1As shown, an insulation layer 5 is arranged between the optical device housing member 3 and the optical module housing member 4, and the insulation layer 5 is used to isolate the optical device housing member 3 and the optical module housing member 4.

[0049] In the embodiment, the insulation layer 5 can be 353ND glue.

[0050] Further, in the embodiment, on the basis of the ferrule 1 being inserted into the adapter sleeve 2, the optical module housing member 4 needs to be sleeved on the periphery of the ferrule 1 and the adapter sleeve 2. However, because the outer contour of the ferrule 1 and the adapter sleeve 2 is relatively concave and convex after the ferrule 1 is inserted into the adapter sleeve 2, the inner side wall of the optical module housing member 4 needs to be matched with each concave and convex position. In this case, the optical module housing member 4 is difficult to be directly sleeved on the periphery of the ferrule 1 and the adapter sleeve 2. Therefore, the embodiment considers that the optical module housing member 4 is divided into two structural members, which are sequentially sleeved on the periphery of the ferrule 1 and the adapter sleeve 2. Therefore, the embodiment also relates to the following design:

[0051] As shown in the figure, Figure 3 the optical module housing member 4 includes a first structural member 41 and a second structural member 42. The first structural member 41 is sleeved on the periphery of the adapter sleeve 2, the second structural member 42 is sleeved on the periphery of the adapter sleeve 2 and the second preset part of the ferrule 1, and the optical device housing member 3 is sleeved on the periphery of the second structural member 42.

[0052] In the embodiment, the first structural member 41 and the second structural member 42 are both hollow columnar structures, and the optical device housing member 3 and the second structural member 42 can be interference-fitted by cold fitting or hot fitting.

[0053] Further, in order to realize the butt joint between the first structural member 41 and the second structural member 42, the embodiment also relates to the following design:

[0054] As shown in the figure, Figures 3-5 the inner side wall of the second structural member 42 is further provided with a first matching groove 421, and the first structural member 41 includes a hollow first matching body 411 and a second matching body 412. The outer diameter of the first matching body 411 is smaller than the outer diameter of the second matching body 412, so as to form an avoiding space matched with the wall thickness of the first matching groove 421, and the first matching body 411 extends into the first matching groove 421.

[0055] The first structural member 41 and the second structural member 42 can be matched in the form of interference-fitting.

[0056] Further, in the embodiment, when the ferrule 1 is inserted into the adapter sleeve 2, since the outer diameter of the adapter sleeve 2 is larger than the diameter of the ferrule 1, the outer contour of the adapter sleeve 2 at the position where the adapter sleeve 2 extends to the ferrule 1 is uneven, and the optical module housing 4 needs to be adapted to the shape of the position, therefore the embodiment also relates to the following design:

[0057] As shown in Figure 6 , a third matching groove 423 is further arranged on the inner side wall of the second structural member 42, an inner wall radius of the third matching groove 423 is smaller than an inner wall radius of the first matching groove 421, and the third matching groove 423 extends to the position where the first matching groove 421 is located; the adapter sleeve 2 is inserted into the third matching groove 423 and the first matching body 411.

[0058] As shown in Figure 6 , a matching member 11 is arranged on the end of the ferrule 1 which is away from the adapter sleeve 2; a fourth matching groove 424 is further arranged on the inner side wall of the second structural member 42, and the fourth matching groove 424 extends to the port position of the second structural member 42, and the matching member 11 is located in the fourth matching groove 424.

[0059] As shown in Figure 7 , a limiting table 43 is further arranged on the circumferential side of the second structural member 42, and the limiting table 43 is spaced apart from the optical device housing 3; the limiting table 43 is used for cooperating with the external optical device.

[0060] In the embodiment, the optical device housing 3 is sleeved on the second structural member 42, and the limiting table 43 is further arranged on the second structural member 42, and the optical device housing 3 needs to avoid contacting the second structural member 42, therefore the embodiment also relates to the following design: as shown in Figure 7 , the end of the optical device housing 3 which is towards the limiting table 43 is filled with insulating glue 6 between the limiting table 43.

[0061] The above only describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An electrically isolated Receptacle assembly, characterized in that, The application relates to an optical module, which comprises a ferrule (1), an adapter sleeve (2), an optical device housing (3) and an optical module housing (4), wherein: the adapter sleeve (2) is sleeved on the periphery of a first preset part of the ferrule (1), and a second preset part of the ferrule (1) is located outside the adapter sleeve (2); the optical module housing (4) is sleeved on the periphery of the adapter sleeve (2), and the optical module housing (4) is also sleeved on the periphery of the second preset part of the ferrule (1); the optical device housing (3) is sleeved on the periphery of the optical module housing (4), and an insulation structure exists between the optical device housing (3) and the optical module housing (4). The length of the first preset part of the ferrule (1) is 1.7+ / -0.1 mm. An insulation layer (5) is arranged between the optical device housing (3) and the optical module housing (4), and the insulation layer (5) is used for isolating the optical device housing (3) and the optical module housing (4). The optical module housing (4) comprises a first structural part (41) and a second structural part (42), wherein: the first structural part (41) is sleeved on the periphery of the adapter sleeve (2), the second structural part (42) is sleeved on the periphery of the adapter sleeve (2) and the periphery of the second preset part of the ferrule (1), and the optical device housing (3) is sleeved on the periphery of the second structural part (42). A first matching groove (421) is further arranged on the inner side wall of the second structural part (42).

2. The electrically isolated Receptacle assembly of claim 1, wherein, The first structural part (41) comprises a hollow first matching body (411) and a second matching body (412), the outer diameter of the first matching body (411) is smaller than the outer diameter of the second matching body (412), so as to form an avoiding space matched with the wall thickness of the first matching groove (421), and the first matching body (411) extends into the first matching groove (421).

3. The electrically isolated Receptacle assembly of claim 1, wherein, A third matching groove (423) is further arranged on the inner side wall of the second structural part (42), the inner wall radius of the third matching groove (423) is smaller than the inner wall radius of the first matching groove (421), and the third matching groove (423) extends to the position of the first matching groove (421); 4. The electrically isolated Receptacle assembly of claim 1, wherein, The adapter sleeve (2) is inserted into the third matching groove (423) and the first matching body (411). A matching part (11) is arranged at the end of the ferrule (1) away from the adapter sleeve (2); 5. The electrically isolated Receptacle assembly of claim 4, wherein, A fourth matching groove (424) is further arranged on the inner side wall of the second structural part (42), the fourth matching groove (424) extends to the port position of the second structural part (42), and the matching part (11) is located in the fourth matching groove (424). A limiting table (43) is further arranged on the periphery of the second structural part (42), the limiting table (43) is spaced apart from the optical device housing (3), and the limiting table (43) is used for cooperating with an external optical device.

6. The electrically isolated Receptacle assembly of claim 5, wherein, ​ ​ 7. The electrically isolated Receptacle assembly of claim 5, wherein, ​ ​ 8. The electrically isolated Receptacle assembly of claim 4, wherein, ​ 9. The electrically isolated Receptacle assembly of claim 8, wherein, The light device housing part (3) is filled with insulating glue (6) between one end of the light device housing part (3) facing the limiting table (43) and the limiting table (43).

10. The electrically isolated Receptacle assembly of any of claims 1-9, wherein, The assembling surface of the light device housing part (3) and the assembling surface of the light module housing part (4) are both insulated.

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