CN116125602B - Optical fiber connector and optical signal transmission device - Google Patents

Abstract

The present invention relates to an optical fiber connector and an optical signal transmission device for connecting an optical cable with a lens, the optical cable being movably provided in the optical fiber connector, the optical fiber connector comprising: the optical cable is characterized by comprising a base, wherein a guide groove is formed in the base and comprises a first groove section and a second groove section, the first groove section and the second groove section are used for accommodating the optical cable, and the length extending direction of the first groove section is intersected with the length extending direction of the second groove section. The cable bend will bend further as the cable moves into the guide slot in contact with the lens. Therefore, the optical fibers at adjacent positions in the optical cable are prevented from being axially pressed to each other to reduce the quality of the optical fibers, and even the optical fibers are crushed and damaged. In other words, the arrangement can reduce the influence of the optical cable on the optical cable when the optical cable moves in the guide groove, namely, the influence of repeated plugging and unplugging on the optical cable is reduced. The optical signal transmission device comprises the optical fiber connector and has good repeated plugging performance.

Description

Optical fiber connector and optical signal transmission device

Technical Field

The present invention relates to the field of optical fiber connection technologies, and in particular, to an optical fiber connector and an optical signal transmission device.

Background

The optical fiber is a signal transmission tool with small diameter, large transmission capacity and quick transmission, and is widely applied in the communication field at present. In practice, the optical fibers are usually matched with different optical fiber connectors to connect between different optical modules.

However, the current optical fiber connector has poor repeated plugging performance, the quality of the optical fiber is easily reduced when the optical fiber is plugged and unplugged repeatedly for many times, and the service life is reduced or even damaged.

Disclosure of Invention

Accordingly, it is necessary to provide an optical fiber connector and an optical signal transmission device in order to solve the problem of how to improve the repeated insertion and removal performance of the optical fiber connector.

An optical fiber connector for connecting an optical cable with a lens, the optical cable being movably disposed within the optical fiber connector, the optical fiber connector comprising:

the optical cable is characterized by comprising a base, wherein a guide groove is formed in the base and comprises a first groove section and a second groove section, the first groove section and the second groove section are used for accommodating the optical cable, and the length extending direction of the first groove section is intersected with the length extending direction of the second groove section.

In one embodiment, the guiding groove further comprises a switching groove section, two ends of the switching groove section are respectively communicated with the first groove section and the second groove section, and the cross section size of the switching groove section along the length direction is larger than the cross section size of the optical cable along the length direction.

In one embodiment, the groove wall of the switching groove section, which corresponds to the bending area of the optical cable, is hollowed.

In one embodiment, an included angle between the length extension direction of the first groove section and the length extension direction of the second groove section is defined as a bent angle, the bent angle is greater than 90 °, and the bent angle is less than 180 °.

In one embodiment, the optical fiber connector further comprises a locking assembly movably disposed on the base for pressing or releasing the optical cable against the groove wall of the second groove section, the optical cable being adapted to extend into from an end of the first groove section remote from the second groove section for connection with the lens.

In one embodiment, the locking assembly comprises a pressing block and an adjusting piece, wherein the adjusting piece is connected with the pressing block and drives the pressing block to be close to or far away from the groove wall of the second groove section, so that the optical cable can be pressed or loosened.

In one embodiment, the optical fiber connector further comprises a second elastic body disposed in the guide groove, the optical cable being configured to retract into the guide groove when connected to the lens, the second elastic body being configured to be connected to the optical cable for elastically pushing the optical cable in a direction opposite to the retraction.

In one embodiment, a blocking portion is arranged on the groove wall of the guide groove in the radial direction, one end of the second elastic body is used for being connected with the optical cable, and the other end of the second elastic body is connected with the blocking portion.

In one embodiment, the optical fiber connector further includes a sleeve, the sleeve is used for fixedly sleeving the optical cable, and two ends of the second elastic body are respectively abutted with the sleeve and the blocking portion.

In one embodiment, a limiting piece is arranged on the groove wall of the guide groove, a limiting hole is formed in the sleeve, and the limiting piece stretches into the limiting hole.

An optical signal transmission device, the optical signal transmission device comprising:

a base;

a lens arranged on the substrate,

the fiber optic connector of at least one embodiment as described in any of the preceding embodiments, the fiber optic connector being disposed on the substrate;

the optical cable is telescopically arranged in the optical fiber connector in a penetrating mode and comprises an inserting core, and the inserting core is at least partially positioned outside the optical fiber connector and is in inserting fit with the lens.

In the optical fiber connector, the optical cable is movably arranged in the optical fiber connector, and because the length extending directions of the first groove section and the second groove section are intersected, under the containing action of the first groove section and the second groove section, the part of the optical cable in the first groove section and the part of the optical cable in the second groove section are intersected, namely at least partial areas of the optical cable in the guide groove are distributed in a bending mode. Thus, as the cable is moved into the guide channel in contact with the lens, the cable bend will bend further. Therefore, the optical fibers at adjacent positions in the optical cable are prevented from being axially pressed to each other to reduce the quality of the optical fibers, and even the optical fibers are crushed and damaged. In other words, the arrangement can reduce the influence of the optical cable on the optical cable when the optical cable moves in the guide groove, namely, the influence of repeated plugging and unplugging on the optical cable is reduced.

Drawings

FIG. 1 is an isometric view of an optical fiber connector according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is an exploded view of a portion of the structure of the fiber optic connector of FIG. 1;

FIG. 4 is an enlarged view of a portion of the fiber optic connector B of FIG. 2;

fig. 5 is an axial schematic view of an optical fiber connector according to another embodiment of the present invention.

Reference numerals: 10. an optical fiber connector; 100. a base; 110. a guide groove; 111. a first trough section; 111a, a blocking part; 112. a second trough section; 113. a transfer slot section; 120. a mounting hole; 130. a first mating hole; 200. a locking assembly; 210. briquetting; 211. a guide hole; 212. a second mating hole; 220. an adjusting member; 221. a handle; 222. a first elastomer; 230. a guide shaft; 300. a second elastomer; 400. a sleeve; 410. a limiting hole; 500. a limiting piece; 20. an optical cable; 21. a core insert; 22. an optical fiber; 23. and (3) a protective layer.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

An embodiment of the present invention provides an optical signal transmission device, which is used for transmitting an optical signal. The optical signal transmission device includes a lens (not shown, hereinafter, the same applies), an optical fiber connector 10, and an optical cable 20, the optical fiber connector 10 being used to stably connect the optical cable 20 with the lens so that an optical signal transmitted from the optical cable 20 can be transmitted into the lens. The optical cable 20 is movably provided in the optical fiber connector 10, and in particular, when the optical cable 20 is mated with the lens, the optical cable 20 can be elastically retracted into the optical fiber connector 10 by a portion thereof, and the optical cable 20 can be held in tight connection with the lens by an elastic restoring force provided by the elastic retraction to stably transmit the optical signal.

In one embodiment, the optical signal transmission device may further include a substrate (not shown, the same applies below), and the lens and the optical fiber connector 10 are disposed on the substrate. In this way, when both the lens and the optical fiber connector 10 have a specific relative position by the base body, the optical cable 20 inserted into the optical fiber connector 10 can be stably connected to the lens.

The base 100 of the optical fiber connector 10 is directly connected to the lens, and the optical fiber connector 10 is indirectly connected to the lens through the base body, so that interference between the base 100 and the lens or other structures can be avoided. Specifically, for some chips with higher integration level, when the connection between the device and the lens is realized through the optical fiber connector in the conventional technology, the shell of the optical fiber connector is easy to interfere with some components on the chip and cannot be connected. In practice, the housing in the fiber optic connector needs to be removed. The optical fiber connector 10 of the present embodiment is connected to the lens through the base body, so that interference of the base 100 can be avoided. Meanwhile, since the related structures such as the base 100 do not need to be removed, the optical fiber connector 10 according to the present embodiment can more stably support the optical cable 20 to be connected with the lens.

In one embodiment, the fiber optic connector 10 may also be provided on an actuator (not shown, below) of a drive (not shown, below). The optical cable 20 is connected to or disconnected from the lens by performing a reciprocating movement of the element.

Referring to fig. 1 and 2, the optical fiber connector 10 includes a base 100, a guiding slot 110 is formed on the base 100, and the optical cable 20 is movably disposed in the guiding slot 110. The guiding slot 110 includes a first slot section 111 and a second slot section 112, and the first slot section 111 and the second slot section 112 are used for accommodating the optical cable 20. The length extension direction of the first groove section 111 intersects the length extension direction of the second groove section 112.

In the optical fiber connector 10, the optical cable 20 is movably disposed in the optical fiber connector 10, and since the first groove section 111 and the second groove section 112 intersect in the longitudinal extension direction, the portion of the optical cable 20 located in the first groove section 111 and the portion of the optical cable 20 located in the second groove section 112 intersect with each other under the accommodation action of the first groove section 111 and the second groove section 112, that is, the optical cable 20 located in the guide groove 110 is distributed in a curved shape. Thus, when the optical cable 20 moves into the guide groove 110 in contact with the lens, the bent portion of the optical cable 20 is further bent. Thus, the optical fibers 22 at adjacent portions of the optical cable 20 are prevented from axially pressing each other to lower the quality of the optical fibers 22 or from causing crushing damage to the optical fibers 22. In other words, this arrangement can reduce the influence of the optical cable 20 on itself when moving in the guide groove 110, i.e., reduce the influence of repeated insertion and extraction on the optical cable 20.

The optical cables 20 are continuously distributed in the optical fiber connector 10.

The length extending direction of the first groove section 111 is shown in the central axis K of fig. 2, and the length extending direction of the second groove section 112 is shown in the central axis M of fig. 2. It should be noted that, in the conventional art, the optical cables 20 in the optical fiber connector 10 are generally linearly distributed. Then, when one end of the optical cable 20 is retracted into the guide groove 110, the optical cable 20 of the retracted portion will press the optical cable 20 connected adjacent thereto in the axial direction, so that the optical cables 20 in the adjacent areas are pressed against each other. When the optical cables 20 are repeatedly plugged and unplugged, the optical cables 20 in adjacent areas will repeatedly press against each other, which can easily cause damage to the optical fibers 22 in the optical cables 20. In the optical fiber connector 10, the longitudinal extension direction of the first groove section 111 intersects with the longitudinal extension direction of the second groove section 112, and the optical cable 20 is distributed in a curved shape at the intersection. Then, when one end of the optical cable 20 is retracted into the guide groove 110, the bent optical cable 20 is further bent, so that the force of pressing the optical cables 20 against each other in the adjacent area is reduced, and the repeated plugging and unplugging capability of the optical cable 20 in the optical fiber connector 10 is improved.

It should be appreciated that the retraction of the cable 20 is only used to ensure that the end of the cable 20 remains tightly connected to the lens, so that the displacement of the retraction of the cable 20 is generally not large and does not cause excessive bending deformation of the cable 20 at the bend to cause bending failure.

Referring again to fig. 2, the optical cable 20 includes a ferrule 21, an optical fiber 22, and a protective layer 23. The protection layer 23 is coated on the optical fiber 22 to protect the optical fiber 22 from damage. The ferrule 21 is connected to the optical fiber 22, and the ferrule 21 is at least partially located outside the optical fiber connector 10 and is in plug-fit with the lens. In this way, the optical fiber 22 can be optically connected to the lens through the ferrule 21.

With continued reference to fig. 2, in one embodiment, an angle between the length extension direction of the first slot segment 111 and the length extension direction of the second slot segment 112 is defined as an angle. The angle of the bent angle is more than 90 degrees, and the angle of the bent angle is less than 180 degrees, namely the angle of the bent angle is 90-180 degrees. The angle of the bending angle can be specifically set according to actual requirements, for example, the angle of the bending angle can be 100 degrees, 110 degrees, 120 degrees, 125 degrees, 150 degrees, 165 degrees and the like. The above-mentioned bent angle is referred to as angle N in fig. 2.

Referring to fig. 2, in one embodiment, the guide slot 110 further includes a transition slot segment 113. Both ends of the switching groove section 113 are respectively communicated with the first groove section 111 and the second groove section 112, that is, the optical cables 20 positioned in the guide groove 110 are continuously distributed in the first groove section 111 and the second groove section 112 through the switching groove section 113. In addition, the length extending direction of the first groove section 111 intersects with the length extending direction of the second groove section 112, and the switching groove section 113 communicates with the first groove section 111 and the second groove section 112, so that the switching groove section 113 is distributed in a curved extending manner as a whole. In other words, the transition groove sections 113 correspond to the curved distribution areas on the optical cable 20.

The cross-sectional dimension of the transition groove segment 113 along the length direction is greater than the cross-sectional dimension of the optical cable 20 along the length direction. As such, there is room for the optical cable 20 to move in a direction perpendicular to the length direction of the transit groove section 120, and the optical cable 20 located in the transit groove section 113 can be further bent.

Referring to fig. 2, in one embodiment, the groove walls of the transit groove section 113 corresponding to the bending area of the optical cable are hollowed, that is, at least a part of the transit groove section 113 is not provided with groove walls. By this arrangement, the bending deformation of the optical cable 20 can be prevented from being restricted by the groove wall of the transit groove section 113. In other words, it is possible to provide the optical cable 20 with a sufficient bending deformation space. In this embodiment, the optical cable 20 corresponding to the switching slot 113 can be curved by the cooperation of the slot wall of the first slot 111 and the slot wall of the second slot 112.

Referring to fig. 2 and 3, in one embodiment, the fiber optic connector 10 further includes a locking assembly 200. The locking assembly 200 is movably disposed on the base 100 for compressing or releasing the fiber optic cable 20 with the slot walls of the second slot segment 112. The fiber optic cable 20 is adapted to extend from an end of the first channel section 111 remote from the second channel section 112 and connect with a lens. That is, the optical cable 20 corresponding to the transfer slot 113 is used as a boundary, and the optical cable 20 at one side can retract into the first slot 111 when being connected with the lens; the other side of the cable 20 does not move relative to the base 100 under compression of the locking assembly 200. In this manner, movement of the fiber optic cable 20 can be limited within the fiber optic connector 10 by the locking assembly 200, avoiding affecting other electronic components. At the same time, the connection of the optical cable 20 and the lens is prevented from being affected when the optical cable 20 positioned outside the optical fiber connector 10 shakes.

Referring to fig. 2 and 3, in one embodiment, the locking assembly 200 includes a press block 210 and an adjusting member 220. The adjusting member 220 is connected to the pressing block 210 and drives the pressing block 210 to approach or separate from the groove wall of the second groove section 112 for pressing or releasing the optical cable 20. The pressing block 210 can prevent the optical cable 20 from moving at this position and other subsequent positions when pressing the optical cable 20; the press block 210 can facilitate the disassembly or replacement of the optical cable 20 when the optical cable 20 is released.

Referring to fig. 1-3, the second slot segment 112 may be a semi-open slot-type structure, such that the press block 210 is capable of compressing or releasing the optical cable 20 positioned in the second slot segment 112 when moving relative to the base 100.

Referring to fig. 3, in one embodiment, the adjusting member 220 includes a handle 221 and a first elastic body 222. The handle 221 is connected to the pressing block 210 and drives the pressing block 210 to approach the groove wall of the second groove section 112 so as to press the optical cable 20 in the second groove section 112. The first elastic body 222 is elastically abutted between the pressing block 210 and the base 100, so that the first elastic body 222 can push the pressing block 210 and the base 100 in a direction away from each other, and when the handle 221 does not apply a force to the pressing block 210, the first elastic body 222 can drive the pressing block 210 to move in a direction away from the base 100, so as to ensure that the pressing block 210 is separated from the optical cable 20.

Referring to fig. 3, in particular, the locking assembly 200 further includes a guide shaft 230. The base 100 is provided with a mounting hole 120, the pressing block 210 is provided with a guide hole 211, and the guide hole 211 and the mounting hole 120 are coaxially arranged. The guide shaft 230 is provided in the mounting hole 120 and extends into the guide hole 211 to guide the reciprocating movement of the pressing block 210. The first elastic body 222 is disposed in the mounting hole 120 and sleeved on the guide shaft 230. The radial dimension of the first elastic body 222 is greater than the radial dimension of the guide hole 211, so that the first elastic body 222 can press the pressing block 210 in a direction away from the base 100.

The base 100 may be provided with a plurality of mounting holes 120, and the pressing block 210 may be provided with a plurality of guide holes 211, where the plurality of guide holes 211 correspond to the plurality of mounting holes 120 one by one. The locking assembly 200 may include a plurality of guide shafts 230 and a plurality of first elastic bodies 222, wherein the plurality of first elastic bodies 222 are sleeved on the guide shafts 230 in a one-to-one correspondence. The plurality of guide shafts 230 are disposed in the plurality of mounting holes 120 in a one-to-one correspondence, and the plurality of guide shafts 230 penetrate the guide holes 211 in a one-to-one correspondence. In this way, the common engagement of the plurality of guide shafts 230 ensures that the position of the pressing block 210 does not shift when the pressing block reciprocates.

Further, the base 100 is provided with a first matching hole 130, the pressing block 210 is provided with a second matching hole 212, one end of the handle 221 is arranged at one side of the pressing block 210 away from the base 100, and the other end of the handle 221 passes through the second matching hole 212 and extends into the first matching hole 130. The handle 221 can be in threaded engagement with the hole wall of the first engagement hole 130, so as to drive the pressing block 210 to move in a direction approaching the base 100.

Of course, the locking assembly 200 may also compress or loosen the fiber optic cable 20 within the second channel segment 112 in other ways.

It will be appreciated that in connection with fig. 2, when the cable 20 is loaded into the guide groove 110, the cable 20 may be slightly pulled away from the lens and then the cable 20 locked so that the initial bend angle has a relatively large angle. In this manner, the bend angle can be varied relatively widely as the cable 20 is retracted into the guide slot 110.

Referring to fig. 2 and 4, in one embodiment, the optical fiber connector 10 further includes a second elastic body 300, where the second elastic body 300 is disposed in the guide groove 110. The optical cable 20 is coupled to the lens for retraction into the guide groove 110, and the second elastic body 300 is coupled to the optical cable 20 for elastically pushing the optical cable 20 in a direction opposite to the retraction. In this way, the optical cable 20 and the lens can be tightly connected through the second elastic body 300, so that stable transmission of the optical signal can be ensured.

Referring to fig. 4, in one embodiment, a blocking portion 111a is provided on a groove wall of the guide groove 110 along a radial direction, one end of the second elastic body 300 is used for connecting with the optical cable 20, and the other end of the second elastic body 300 is connected with the blocking portion 111 a. In this manner, the second elastic body 300 can provide an elastic force to the optical cable 20 to make the connection of the optical cable 20 with the lens more stable.

In one embodiment, the blocking portion 111a may be specifically a stepped structure. The blocking portion 111a may be formed on a groove wall of the first groove section 111.

With continued reference to fig. 4, in one embodiment, the fiber optic connector 10 further includes a sleeve 400. The sleeve 400 is used for fixedly sleeving the optical cable 20, and two ends of the second elastic body 300 are respectively abutted against the sleeve 400 and the blocking part 111 a. In other words, the sleeve 400 can provide a force application portion to the second elastic body 300, so that the second elastic body 300 can apply elastic urging force to the optical cable 20.

With continued reference to fig. 4, in one embodiment, a limiting member 500 is disposed on a wall of the guiding slot 110, a limiting hole 410 is disposed on the sleeve 400, and the limiting member 500 extends into the limiting hole 410. It will be appreciated that the sleeve 400 is fixedly secured to the cable 20 such that the sleeve 400 is capable of movement with the cable 20. Then, during the axial movement of the optical cable 20 and the sleeve 400, the limiting member 500 will abut against two hole walls of the limiting hole 410 opposite to each other in the movement direction, so that the optical cable 20 and the sleeve 400 have a limit position during the axial movement. In this way, the movement of the sleeve 400 and the optical cable 20 can be limited within a certain preset range by the limiting member 500, so as to avoid the overlarge retraction displacement of the optical cable 20. Specifically, the above-described preset range may be adjusted by adjusting the size of the limiting hole 410.

Specifically, the limiting member 500 may be disposed on a groove wall of the first groove section 111.

Further, the stopper 500 may be movably disposed on the groove wall of the first groove section 111, so as to facilitate the installation of the sleeve 400 into the first groove section 111 and the penetration of the stopper 500 into the stopper hole 410.

Referring to fig. 5, in one embodiment, the optical signal transmission device includes at least one fiber optic connector 10.

Specifically, in some embodiments, the optical signal transmission device may include two or more optical fiber connectors 10. The number of fiber optic connectors 10 may correspond to the number of fiber optic cables 20. Specifically, the optical signal transmission device including two optical fiber connectors 10 is described as an example. In this case, the optical signal transmission device includes two optical cables 20, and the optical signal transmission device needs to connect the two optical cables 20 with the lenses respectively. The two optical fiber connectors 10 may be distributed accordingly according to the connection position arrangement of the lenses, for example, the two optical fiber connectors 10 may be arranged side by side as shown in fig. 5. The two optical cables 20 are respectively and correspondingly inserted into the two optical fiber connectors 10.

In some embodiments, one fiber optic connector 10 may be threaded with a plurality of fiber optic cables 20. In this embodiment, a plurality of guide grooves 110 may be formed in the base 100, and each of the plurality of guide grooves 110 includes a first groove section 111 and a second groove section 112 as described in each embodiment, so as to ensure that the optical cable 20 in each guide groove 110 has better repeated plugging performance. Meanwhile, in the present embodiment, the number of the sleeves 400 and the second elastic bodies 300 also corresponds to the number of the optical cables 20, so that any one of the optical cables 20 can be tightly connected with the lens.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims (11)

1. An optical fiber connector for connecting an optical cable to a lens, the optical cable being movably disposed within the optical fiber connector, the optical fiber connector comprising:

the optical cable connector comprises a base, wherein a guide groove is formed in the base, the guide groove comprises a first groove section, a second groove section and a switching groove section which are all used for accommodating the optical cable, the length extending direction of the first groove section is intersected with the length extending direction of the second groove section, two ends of the switching groove section are respectively communicated with the first groove section and the second groove section to be distributed in a bending extending mode, and the section size of the switching groove section is larger than the section size of the optical cable in the length direction of the guide groove so as to be used for the optical cable to be further bent when the optical cable is retracted;

the locking component is movably arranged on the base and used for pressing or releasing the optical cable and the groove wall of the second groove section, and the locking component is used for locking the optical cable after the optical cable is pulled back into the guide groove so as to relatively increase the initial bending angle of the optical cable;

the locking assembly comprises a pressing block, an adjusting piece and a guide shaft, the adjusting piece is connected with the pressing block and drives the pressing block to be close to or far away from the groove wall of the second groove section so as to be used for pressing or loosening the optical cable, the base is provided with a mounting hole, the pressing block is provided with a guide hole coaxially arranged with the mounting hole, and the guide shaft is arranged in the mounting hole and extends into the guide hole so as to guide the reciprocating movement of the pressing block;

and the optical cable is used as a boundary part of the optical cable corresponding to the switching groove section, and one side of the guide groove, where the first groove section is positioned, is used for retracting the optical cable into the first groove section when the optical cable is connected with the lens.

2. The fiber optic connector of claim 1, wherein the groove wall in the transition groove section for the cable bend region is hollowed out.

3. The fiber optic connector of claim 1, wherein an angle between a length extension of the first slot segment and a length extension of the second slot segment is defined as an angle, the angle being greater than 90 ° and the angle being less than 180 °.

4. The fiber optic connector of claim 1, wherein the adjustment member includes a handle and a first elastomer, the handle being coupled to the press block and driving the press block adjacent the second channel segment for compressing the fiber optic cable within the second channel segment; the first elastic body is elastically abutted between the pressing block and the base to push the pressing block and the base away from each other; the optical cable is used for extending from one end of the first groove section away from the second groove section to be connected with the lens.

5. The fiber optic connector of claim 4, wherein the first elastomer is disposed in the mounting hole and is disposed over the guide shaft, and wherein a radial dimension of the first elastomer is greater than a radial dimension of the guide hole.

6. The optical fiber connector according to claim 5, wherein the base is provided with a plurality of mounting holes, the pressing block is provided with a plurality of guide holes, and the guide holes are in one-to-one correspondence with the mounting holes; the locking assembly can comprise a plurality of guide shafts and a plurality of first elastic bodies, the guide shafts are sleeved with the first elastic bodies in one-to-one correspondence, the guide shafts are arranged in the mounting holes in one-to-one correspondence, and the guide shafts penetrate through the guide holes in one-to-one correspondence.

7. The fiber optic connector of claim 1, further comprising a second elastomer disposed within the guide channel, the fiber optic cable being configured to retract into the guide channel when connected to the lens, the second elastomer being configured to connect to the fiber optic cable for resiliently urging the fiber optic cable in a direction opposite the retraction.

8. The optical fiber connector according to claim 7, wherein a blocking portion is provided on a wall of the guide groove in a radial direction, one end of the second elastic body is used for connection with the optical cable, and the other end of the second elastic body is connected with the blocking portion.

9. The fiber optic connector of claim 8, further comprising a sleeve for fixedly sheathing the cable, the second elastomer having opposite ends abutting the sleeve and the blocking portion, respectively.

10. The fiber optic connector of claim 9, wherein the guide slot has a slot wall with a stop member, the sleeve has a stop hole, and the stop member extends into the stop hole.

11. An optical signal transmission device, characterized in that the optical signal transmission device comprises:

a base;

a lens arranged on the substrate,

at least one optical fiber connector according to any one of claims 1 to 10, said optical fiber connector being provided on said base body;

the optical cable is telescopically arranged in the optical fiber connector in a penetrating mode and comprises an inserting core, and the inserting core is at least partially positioned outside the optical fiber connector and is in inserting fit with the lens.