Optical port adapter and optical module

By designing slots and resistors in the optical port adapter that match the shape of the MT ferrule, the problem of the coordination between the MT ferrule and the optical port adapter affects the performance and insertion difficulties of high-speed optical modules, and the improvement of optical module performance and convenience of maintenance are achieved.

CN222994714UActive Publication Date: 2025-06-17武汉钧恒科技有限公司
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Patent Information

Application Number
CN202422258742.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-13
Publication Date
2025-06-17
Estimated Expiration
2034-09-13

AI Technical Summary

Technical Problem

There are two problems with the coordination method between the MT ferrule and the optical port adapter in existing optical modules: one is to affect the performance of the high-speed optical module; the other is that the MT ferrule is difficult to insert and is prone to damage the optical fiber during rework.

Method used

An optical port adapter is designed, and a slot is provided between the plug-in and the fixing part that matches the shape of the MT ferrule. There is a barrier part in the slot to prevent the MT ferrule from falling apart, and the MT ferrule is inserted into the slot from the side of the fixing part.

Benefits of technology

This design ensures the center of the MT ferrule and the external connector, does not affect the performance of the optical module, avoids the omission of MT ferrule card and damage to the optical fiber, and makes maintenance more convenient.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an optical port adapter which comprises a plugging part used for plugging with an external connector, and a non-plugging end of the plugging part is fixedly connected with a fixing part. A slot which is matched with the MT insertion core in shape and is used for enabling the MT insertion core inserted into the slot to be coupled with an external connector inserted into the insertion part is formed in the side surface of the same side between the insertion part and the fixed part, is communicated with an inner cavity of the insertion part and penetrates through the end surface, deviating from the insertion part, of the fixed part; the slot is internally provided with a blocking part which is attached to the card in the MT insertion core and is used for preventing the MT insertion core from being separated from the slot from one end, far away from the insertion part, of the fixing part. The optical module has the beneficial effects that the centrality of the MT insertion core and the external connector can be ensured no matter the lower structural member is matched with the upper structural member to be pressed too tightly or too loosely, the performance of the optical module is not influenced, the situation that the matching length of a guide pin in the MT insertion core and the external connector is too short due to the fact that a card in the MT insertion core is omitted is avoided, and an optical fiber in the MT insertion core does not need to be pulled outwards.
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Description

Technical Field

[0001] The utility model relates to the technical field of optical communication, in particular to an optical port adapter and an optical module. Background Art

[0002] There are two ways to match the MT ferrule and optical port adapter in traditional optical modules, as follows:

[0003] 1) The MT ferrule and the optical port adapter are separately matched, relying on the upper and lower structural parts to limit the position. In this solution, whether the upper and lower structural parts press the MT ferrule and the optical port adapter too tightly or too loosely, the performance of the optical module will be affected. For low-speed optical modules, this impact is within an acceptable range, but for high-speed optical modules, due to the high centering required for the external connector plugged into the MT ferrule and the optical port adapter, this impact is unacceptable. The specific structure is as follows: Figure 1 As shown;

[0004] 2) The MT ferrule is inserted into the optical port adapter through the end of the optical port adapter. This method can ensure the required centering between the MT ferrule and the external connector plugged into the optical port adapter. Figure 2 However, this method has the following problems:

[0005] ① It is difficult to insert the MT ferrule, especially the MT ferrule card is easy to be left out and not inserted into the optical port adapter, which will cause the matching length between the guide pin in the MT ferrule and the external connector to be too short, affecting the performance of the optical module;

[0006] ② When repairing, you need to move the upper and lower springs of the optical port adapter, and then pull the optical fiber of the MT ferrule outward to remove the MT ferrule from the optical port adapter. This method is easy to damage the optical fiber. Utility Model Content

[0007] The technical problem to be solved by the utility model is to provide an optical port adapter and an optical module to overcome the deficiencies in the above-mentioned prior art.

[0008] The utility model solves the above technical problems with the following technical solutions: an optical port adapter, comprising: a plug-in portion for plugging with an external connector, a non-plug-in end of the plug-in portion fixedly connected to a fixed portion, a slot matching the shape of an MT ferrule and used to allow an MT ferrule inserted therein to couple with an external connector plugged into the plug-in portion is provided on a side surface on the same side between the plug-in portion and the fixed portion, the slot is communicated with an inner cavity of the plug-in portion and penetrates an end surface of the fixed portion away from the plug-in portion, and a blocking portion is provided in the slot that is attached to a card in the MT ferrule and is used to prevent the MT ferrule from escaping from the slot at one end of the fixed portion away from the plug-in portion.

[0009] The beneficial effects of the present utility model are as follows:

[0010] Since the MT ferrule is inserted into the slot from the side of the fixing part and is prevented from detaching from the fixing part in the direction away from the plugging part under the action of the blocking part, when it is applied to a low-rate optical module or a high-rate optical module, regardless of whether the lower structural member cooperates with the upper structural member to press too tightly or too loosely, the centering of the MT ferrule and the external connector can be ensured, without affecting the performance of the optical module. In addition, there is no need to worry that the card in the MT ferrule is left outside, resulting in too short a mating length between the pins in the MT ferrule and the external connector, which does not affect the performance of the optical module. During repair, it is also not necessary to pull the optical fiber in the MT ferrule outwards to avoid damaging the optical fiber, and the maintenance is convenient.

[0011] Based on the above technical solutions, the present utility model can be further improved as follows.

[0012] Further, the blocking part is U-shaped, the opening direction of the blocking part is the same as the opening direction of the slot, and the opening height of the blocking part is less than the height of the card in the MT ferrule.

[0013] The beneficial effect of adopting the above is: It can effectively prevent the MT ferrule from detaching from the fixing part in the direction away from the plugging part.

[0014] Further, the depth of the slot is less than or equal to the width of the MT ferrule.

[0015] The beneficial effect of adopting the above is: When it is applied to an optical module, the MT ferrule can be blocked by the limiting part of the lower structural member, so that the MT ferrule can be well adapted to the slot of the optical port adapter.

[0016] Further, the plugging part and the fixing part are integrally formed by injection molding.

[0017] The beneficial effect of adopting the above is: It can effectively ensure the slot position accuracy.

[0018] Based on the above technical solutions, the present utility model also provides an optical module, including: a lower structural member, an upper structural member, an MT ferrule, and an optical port adapter. The MT ferrule is inserted into the slot of the optical port adapter, and the optical fiber of the MT ferrule extends outwards through the port of the slot away from the plugging part. The optical port adapter is clamped in the inner cavity of the lower structural member, and the upper structural member is fixed to the lower structural member by screws and cooperates with the lower structural member to clamp the optical port adapter.

[0019] The further beneficial effects are as follows: during maintenance, unscrew the screw, remove the upper structural member, and the optical port adapter and the MT ferrule can be taken out from the inner cavity of the lower structural member simultaneously, and then the MT ferrule can be taken out from the side of the slot, which makes the maintenance more convenient. When the cooperation of the optical port adapter and the MT ferrule is applied to a low-rate optical module or a high-rate optical module, regardless of whether the lower structural member and the upper structural member are pressed too tightly or too loosely, it does not affect the performance of the optical module. During repair, it is not necessary to pull out the optical fiber in the MT ferrule externally to avoid loss of the optical fiber, and the maintenance is convenient.

[0020] Furthermore, a limiting portion for preventing the MT ferrule from loosening in the slot is provided in the inner cavity of the lower structural member.

[0021] The further beneficial effects are as follows: when the MT ferrule is inserted into the slot of the optical port adapter and the whole is then placed into the inner cavity of the lower structural member, the limiting portion prevents the MT ferrule from loosening in the slot, and when the optical port adapter is plugged into an external connector, the centering of the external connector and the MT ferrule can be ensured.

[0022] Furthermore, convex ribs are provided on the side surface, the upper surface and the lower surface of the plugging portion, and lower card slots matching the convex ribs on the plugging portion are formed in the inner cavity of the lower structural member, and upper card slots matching the convex ribs on the plugging portion are formed in the inner cavity of the upper structural member.

[0023] The further beneficial effects are as follows: through the cooperation of the convex ribs on the plugging portion and the lower card slots and the cooperation of the convex ribs and the upper card slots, the optical port adapter can be prevented from detaching from the optical port ends of the lower structural member and the upper structural member. Description of the Drawings

[0024] Figure 1 It is a diagram of the first cooperation mode of the optical port adapter and the MT ferrule in the prior art;

[0025] Figure 2 It is a diagram of the second cooperation mode of the optical port adapter and the MT ferrule in the prior art;

[0026] Figure 3 It is a structural diagram of the optical port adapter in the present invention;

[0027] Figure 4 It is a cooperation diagram of the optical port adapter and the MT ferrule in the present invention;

[0028] Figure 5 It is a structural diagram of the optical module in the present invention;

[0029] Figure 6 It is a remaining structural diagram of the optical module in the present invention after removing the upper structural member;

[0030] Figure 7 For Figure 6 Partial enlarged view;

[0031] Figure 8 This is the structural diagram of the upper structural member.

[0032] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0033] 1. Optical port adapter, 110. Plug-in part, 111. Raised rib, 120. Fixing part, 130. Slot, 140. Stopping part, 2. MT ferrule, 210. Card, 220. Optical fiber, 3. Lower structural part, 310. Limiting part, 320. Lower card slot, 4. Upper structural part, 410. Upper card slot, 5. Screw. DETAILED DESCRIPTION

[0034] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0035] Example 1

[0036] like Figure 3 , Figure 4 As shown, an optical port adapter includes: a plug-in portion 110 and a fixing portion 120, wherein the plug-in portion 110 is used to plug with an external connector, and the plug-in matching principle of the plug-in portion 110 and the external connector still adopts the existing technology, so the structure of the plug-in portion 110 is not described in detail here;

[0037] The non-plug-in end of the plug-in portion 110 (i.e., the end of the plug-in portion 110 facing away from the external connector) is fixedly connected to a fixing portion 120. A slot 130 is provided on the side surface of the same side between the plug-in portion 110 and the fixing portion 120. The slot 130 matches the shape of the MT ferrule 2. The slot 130 is communicated with the inner cavity of the plug-in portion 110, and the slot 130 penetrates the end surface of the fixing portion 120 facing away from the plug-in portion 110. In addition, a stopper 140 is provided in the slot 130. When the MT ferrule 2 is inserted into the slot 130, the outer side surface of the card 210 in the MT ferrule 2 is abutted against the stopper 140, and the stopper 140 prevents the MT ferrule 2 from being separated from the slot 130 from the end of the fixing portion 120 away from the plug-in portion 110. The slot 130 is used to allow the MT ferrule 2 inserted therein to couple with the external connector plugged into the plug-in portion 110.

[0038] Since the MT ferrule 2 is inserted into the slot 130 from the side of the fixing part 120 and is prevented from detaching from the fixing part 120 in the direction away from the plugging part 110 under the action of the blocking part 140, when it is applied to a low-rate optical module or a high-rate optical module, regardless of whether the lower structural member 3 presses the upper structural member 4 too tightly or too loosely, the centering of the MT ferrule 2 with the external connector can be ensured, without affecting the performance of the optical module. In addition, since the MT ferrule 2 is inserted into the slot 130 from the side of the fixing part 120, there is no need to worry about the card 210 in the MT ferrule 2 being left outside, resulting in too short a mating length between the pins in the MT ferrule 2 and the external connector, which does not affect the performance of the optical module. During repair, there is no need to pull out the optical fiber 220 in the MT ferrule 2 to avoid damaging the optical fiber 220, and the repair is convenient.

[0039] Embodiment 2

[0040] As Figure 3 、 Figure 4 shown, this embodiment is a further improvement on Embodiment 1, and the specific details are as follows:

[0041] The blocking part 140 is U-shaped, the opening direction of the blocking part 140 is the same as the opening direction of the slot 130, and the opening height of the blocking part 140 is less than the height of the card 210 in the MT ferrule 2, which can effectively prevent the MT ferrule 2 from detaching from the fixing part 120 in the direction away from the plugging part 110.

[0042] Embodiment 3

[0043] As Figure 3 、 Figure 4 shown, this embodiment is a further improvement on Embodiment 1 or 2, and the specific details are as follows:

[0044] The depth of the slot 130 is less than or equal to the width of the MT ferrule 2. When it is applied to an optical module, the limiting part 310 of the lower structural member 3 can be relied on to block the MT ferrule 2, so that the MT ferrule 2 can be well adapted to the slot 130 of the optical port adapter 1.

[0045] Embodiment 4

[0046] As Figure 3 、 Figure 4 shown, this embodiment is a further improvement on any one of Embodiments 1 to 3, and the specific details are as follows:

[0047] The plugging part 110 and the fixing part 120 are integrally formed by an injection molding process, which can effectively ensure the slot accuracy of the slot 130.

[0048] Embodiment 5

[0049] As Figure 5 、Figure 6 , Figure 7 As shown in Figure 7 , an optical module includes a lower structural member 3, an upper structural member 4, an MT ferrule 2, and an optical port adapter 1. The MT ferrule 2 is inserted into the slot 130 of the optical port adapter 1, and the optical fiber 220 of the MT ferrule 2 extends outward through the port of the slot 130 away from the plugging portion 110. The optical port adapter 1 is clamped in the inner cavity of the lower structural member 3. The upper structural member 4 is fixed to the lower structural member 3 by screws 5 and cooperates with the lower structural member 3 to clamp the optical port adapter 1. During maintenance, the screws 5 are removed, the upper structural member 4 is taken off, and the optical port adapter 1 and the MT ferrule 2 can be taken out of the inner cavity of the lower structural member 3 simultaneously, and then the MT ferrule 2 can be taken out from the side of the slot 130, which makes the maintenance more convenient. When the cooperation between the optical port adapter 1 and the MT ferrule 2 is applied in a low-rate optical module or a high-rate optical module, no matter whether the lower structural member 3 and the upper structural member 4 are pressed too tightly or too loosely, it does not affect the performance of the optical module. During repair, it is not necessary to pull out the optical fiber 220 in the MT ferrule 2 to avoid damaging the optical fiber 220, and the maintenance is convenient.

[0050] Embodiment 6

[0051] As Figure 6 , Figure 7 shown in Figure 7 , this embodiment is a further improvement based on Embodiment 5, and the specific content is as follows:

[0052] A limiting portion 310 for preventing the MT ferrule 2 from loosening in the slot 130 is provided in the inner cavity of the lower structural member 3. When the MT ferrule 2 is inserted into the slot 130 of the optical port adapter 1 and the whole is then placed in the inner cavity of the lower structural member 3, the limiting portion 310 prevents the MT ferrule 2 from loosening in the slot 130. When the optical port adapter 1 is plugged into an external connector, the centering of the external connector and the MT ferrule 2 can be ensured.

[0053] Embodiment 7

[0054] As Figure 6 , Figure 7 , Figure 8 shown in Figure 8 , this embodiment is a further improvement based on Embodiment 5 or 6, and the specific content is as follows:

[0055] Raised ribs 111 are provided on the side surface, upper surface, and lower surface of the plugging portion 110. A lower card slot 320 matching the raised ribs 111 on the plugging portion 110 is formed in the inner cavity of the lower structural member 3, and an upper card slot 410 matching the raised ribs 111 on the plugging portion 110 is formed in the inner cavity of the upper structural member 4. Through the cooperation between the raised ribs 111 on the plugging portion 110 and the lower card slot 320 and the cooperation between the raised ribs 111 and the upper card slot 410, the optical port adapter 1 can be prevented from detaching from the optical port ends of the lower structural member 3 and the upper structural member 4.

[0056] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. An optical port adapter, characterized in that: include: A plug-in portion (110) is provided for plugging with an external connector, a non-plug-in end of the plug-in portion (110) being fixedly connected to a fixing portion (120), a slot (130) matching the shape of an MT ferrule (2) and used to allow the MT ferrule (2) inserted therein to couple with the external connector plugged on the plug-in portion (110) is provided on the side surface on the same side between the plug-in portion (110) and the fixing portion (120), the slot (130) being communicated with the inner cavity of the plug-in portion (110) and penetrating the end surface of the fixing portion (120) facing away from the plug-in portion (110), and a blocking portion (140) is provided in the slot (130) which is in contact with a card (210) in the MT ferrule (2) and is used to prevent the MT ferrule (2) from escaping from the slot (130) at one end of the fixing portion (120) away from the plug-in portion (110).

2. The optical port adapter according to claim 1, characterized in that: The blocking portion (140) is U-shaped, the opening direction of the blocking portion (140) is in the same direction as the opening direction of the slot (130), and the opening height of the blocking portion (140) is less than the height of the card (210) in the MT ferrule (2).

3. The optical port adapter according to claim 1, characterized in that: The depth of the slot (130) is less than or equal to the width of the MT ferrule (2).

4. The optical port adapter according to claim 1, characterized in that: The plug-in portion (110) and the fixing portion (120) are integrally formed by an injection molding process.

5. An optical module, characterized in that: include: A lower structural member (3), an upper structural member (4), an MT ferrule (2), and an optical port adapter (1) as claimed in any one of claims 1 to 4, wherein the MT ferrule (2) is inserted into a slot (130) of the optical port adapter (1), the optical fiber (220) of the MT ferrule (2) extends outward from a port of the plug-in portion (110) through the slot (130), the optical port adapter (1) is stuck in the inner cavity of the lower structural member (3), and the upper structural member (4) is fixed to the lower structural member (3) by means of screws (5) and cooperates with the lower structural member (3) to clamp the optical port adapter (1).

6. An optical module according to claim 5, characterized in that: A limiting portion (310) is provided in the inner cavity of the lower structure (3) for preventing the MT ferrule (2) from loosening in the slot (130).

7. The optical module according to claim 5, characterized in that: The side surface and the upper and lower surfaces of the plug-in portion (110) are provided with convex ribs (111); the inner cavity of the lower structural component (3) is provided with a lower clamping groove (320) which matches with the convex rib (111) on the plug-in portion (110); and the inner cavity of the upper structural component (4) is provided with an upper clamping groove (410) which matches with the convex rib (111) on the plug-in portion (110).