Vehicle-mounted optical module fiber coiling structure and use method thereof

Abstract

The invention relates to the technical field of optical communication, in particular to a vehicle-mounted optical module fiber coiling structure and a use method thereof, and the structure comprises a PCB, a fiber coiling assembly and a housing. The fiber coiling assembly is fixedly arranged above the PCB, and the PCB and the fiber coiling assembly are placed in the shell; the fiber coiling assembly comprises a fiber coiling frame and a mounting panel, the fiber coiling frame is fixedly connected with the PCB, a plurality of photoelectric hybrid connectors are inserted into the mounting panel, and tail fibers of the photoelectric hybrid connectors are coiled into the fiber coiling frame; a plurality of optical devices are arranged on the PCB, the fiber coiling frame comprises an upper platform, a lower platform and a connecting surface, the two ends of the connecting surface are fixedly connected with the upper platform and the lower platform respectively, and the upper platform is located above the optical devices. According to the invention, the fiber coiling structure and the PCB are stacked, so that the occupation of the fiber coiling structure and the PCB on the space in the vehicle is reduced, and the signal transmission path is optimized, thereby overcoming the problems of signal transmission and integrity and the problems of cost and space in the existing separated arrangement.

Description

Technical Field

[0001] The present invention relates to the field of optical communication technology, and in particular to a fiber coil structure of a vehicle-mounted optical module and a use method thereof. Background Art

[0002] In existing on-board optical modules, the optical module's fiber coil structure and printed circuit board (PCB) are mostly set separately. However, if the two are set separately, the signal will encounter a longer path and more interfaces during transmission, increasing the risk of signal attenuation. At the same time, due to the complex path, the signal is more susceptible to interference from the external environment, such as electromagnetic interference, noise, etc., thereby affecting the integrity of the signal. In the current application requirements of high-speed data transmission, the separate setting of the fiber coil structure and the PCB circuit board may affect the synchronization of data transmission, thereby affecting the performance of the entire system.

[0003] In addition to the above problems, since the space inside the car is very limited, the optical module fiber tray structure and the PCB are set separately, which will take up more space inside the car, which is a disadvantage for the space-limited vehicle environment. In addition, the additional space occupation may also affect the layout and heat dissipation of other components.

[0004] 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

[0005] The technical problem to be solved by the present invention is that the existing vehicle-mounted optical module fiber coil structure and PCB are separately arranged, which may cause signal transmission and integrity problems, as well as high cost and occupied layout space problems.

[0006] The present invention adopts the following technical solution:

[0007] In a first aspect, the present invention provides a fiber coil structure for an in-vehicle optical module, comprising: a PCB 1, a fiber coil assembly 2, and a housing 3; the fiber coil assembly 2 is fixedly arranged above the PCB 1, and the PCB 1 and the fiber coil assembly 2 are placed in the housing 3;

[0008] The fiber coiling assembly 2 includes a fiber coiling frame 20 and an installation panel 21. The fiber coiling frame 20 is fixedly connected to the PCB 1. A plurality of optoelectronic hybrid connectors 210 are plugged into the installation panel 21. The fiber pigtails of the optoelectronic hybrid connectors 210 are coiled into the fiber coiling frame 20.

[0009] A plurality of optical devices 10 are arranged on the PCB1, and the fiber tray 20 includes an upper platform 2030, a lower platform 2031 and a connecting surface 2032. The two ends of the connecting surface 2032 are fixedly connected to the upper platform 2030 and the lower platform 2031 respectively. There is a preset distance between the upper platform 2030 and the PCB1, and the lower platform 2031 is attached to the PCB1.

[0010] Preferably, the installation panel 21 is rotatably connected to the fiber coiling frame 20 ; or, the installation panel 21 is disposed on the front end surface of the fiber coiling frame 20 , and the installation panel 21 is fixedly connected to the fiber coiling frame 20 .

[0011] Preferably, when the mounting panel 21 is rotatably connected to the fiber coiling rack 20, mounting plates 200 are provided on both sides of the lower platform 2031 of the fiber coiling rack 20, and damping rotation pins 2000 are provided on the mounting plates 200. A connecting plate 211 is processed at the tail of the mounting panel 21, and a slotted hole 2110 is provided on the connecting plate 211. The slotted hole 2110 is slidably connected to the damping rotation pin 2000, so that the mounting panel 21 can rotate within a preset range.

[0012] Preferably, the damping rotation pin 2000 includes a sub-pin 2001 and a mother pin 2002 arranged on both sides of the mounting plate 200, the mother pin 2002 is fixedly connected to the mounting plate 200, and the sub-pin 2001 and the mother pin 2002 are locked with each other.

[0013] Preferably, a fiber winding groove 201 is provided on the upper surface of the fiber winding frame 20 , a fiber winding protrusion 202 is provided at the center of the fiber winding groove 201 , and the fiber winding protrusion 202 is used to wind the pigtail. The pigtail of the optoelectronic hybrid connector 210 is wound into the fiber winding groove 201 .

[0014] Preferably, an edge protrusion 204 is provided at the junction of the upper platform 2030 and the connecting surface 2032, and a plurality of wire management grooves 2040 are provided on the edge protrusion 204. The wire management grooves 2040 are used to accommodate and fix the pigtails of the optoelectronic hybrid connector 210. The pigtails of the optoelectronic hybrid connector 210 extend from the tail of the optoelectronic hybrid connector 210, pass through the wire management grooves 2040, and are coiled into the fiber coiling groove 201.

[0015] Preferably, the fiber coil assembly 2 also includes a cover plate 22, and a plurality of positioning notches 205 are arranged at the edge of the upper platform 2030 of the fiber coil rack 20, and a plurality of locking protrusions 220 corresponding to the positioning notches 205 are arranged on the side of the cover plate 22, and a locking head 2200 is arranged at the lower end of the locking protrusion 220, and the locking head 2200 is used to lock with the positioning notch 205.

[0016] Preferably, a skylight 30 is provided on the upper surface of the housing 3 , and the skylight 30 is used to expose the installation panel 21 .

[0017] Preferably, two limiting columns 31 are provided on the inner bottom surface of the shell 3, and two first through holes 11 are provided on the PCB1. The two limiting columns 31 are respectively inserted into the two first through holes 11. At the same time, the limiting columns 31 support the installation panel 21.

[0018] In a second aspect, the present invention provides a method for using a fiber coil structure of an on-board optical module, which is applicable to the fiber coil structure of the on-board optical module described in the first aspect, comprising:

[0019] When installing or repairing the optoelectronic hybrid connector 210, the installation panel 21 is pulled out obliquely upward, adjusted to a suitable position, and then the installation panel 21 is pressed down and fixed to perform the installation or repair work of the optoelectronic hybrid connector 210;

[0020] After the installation or maintenance of the optoelectronic hybrid connector 210 is completed, the installation panel 21 is released, the installation panel 21 is rotated to a horizontal state, and the installation panel 21 is pulled outward to an extreme position to fix the installation panel 21.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention can effectively solve the problem of space occupation that may exist when the fiber coil assembly 2 and PCB1 of the vehicle-mounted optical module are separately arranged by means of a stacked integrated design of PCB1 and the fiber coil assembly 2, reduce the space occupied by PCB1 and the fiber coil assembly 2 in the vehicle, and provide more room for the layout of other devices in the vehicle; secondly, the Z-shaped design of the fiber coil rack 20 makes full use of the space above the PCB1 and the characteristic that no optical device 10 is arranged in the middle of the PCB1, and the fiber coil rack 20 is erected above the PCB1.

[0022] Furthermore, through the pull-out design of the installation panel 21, the installation and maintenance operations of the optoelectronic hybrid connector 210 are facilitated, while ensuring that the installation panel 21 can remain horizontal during the operation of the optical module, so as to reduce the bending of the optical fiber pigtail of the optoelectronic hybrid connector 210, effectively overcome the signal transmission and integrity problems and cost problems existing in the existing arrangement method, optimize the signal transmission path, and improve the transmission quality of the optical signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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.

[0024] Figure 1 It is a schematic diagram of the overall structure of a fiber coil structure of an on-vehicle optical module provided by an embodiment of the present invention;

[0025] Figure 2 Schematic diagram of a fiber coil assembly of a fiber coil structure for an on-vehicle optical module provided by an embodiment of the present invention;

[0026] Figure 2a It is a schematic diagram of a fiber coiling frame of a fiber coiling structure of an on-vehicle optical module provided by an embodiment of the present invention, which is located above an optical device;

[0027] Figure 2b It is a schematic diagram of a PCB of a fiber coil structure of a vehicle-mounted optical module provided by an embodiment of the present invention;

[0028] Figure 3 Schematic diagram of a rotation-resistant pin of a fiber-coil structure of an on-vehicle optical module provided by an embodiment of the present invention;

[0029] Figure 4 It is a schematic diagram of a connection plate of a fiber coil structure of an on-vehicle optical module provided by an embodiment of the present invention, in which a slot-shaped hole is not provided;

[0030] Figure 5 Schematic diagram of a fiber coiling frame of a fiber coiling structure of an on-vehicle optical module provided by an embodiment of the present invention;

[0031] Figure 6 Schematic diagram of a cover plate of a fiber coil structure of an on-vehicle optical module provided by an embodiment of the present invention;

[0032] Figure 7 It is a schematic diagram of a positioning notch of a fiber coil structure of an on-vehicle optical module provided by an embodiment of the present invention;

[0033] Figure 8Schematic diagram of a locking head of a fiber coil structure of an on-vehicle optical module provided by an embodiment of the present invention;

[0034] Fig. 9 It is a schematic diagram of a skylight of a fiber-coil structure of an on-vehicle optical module provided by an embodiment of the present invention;

[0035] Fig.10 It is a schematic diagram of a limiting column of a fiber coil structure of an on-vehicle optical module provided by an embodiment of the present invention;

[0036] Fig.11 is a schematic diagram of a first through hole of a fiber coil structure of an on-vehicle optical module provided by an embodiment of the present invention;

[0037] Fig.12 It is a schematic diagram of a method for using a fiber coil structure of a vehicle-mounted optical module provided by an embodiment of the present invention;

[0038] Fig.13a It is a schematic diagram of a panel installed when installing a fiber coil structure of an on-vehicle optical module or repairing an optoelectronic hybrid connector provided by an embodiment of the present invention;

[0039] Fig.13b It is a schematic diagram of pulling out the installation panel of a fiber coil structure of an on-vehicle optical module provided by an embodiment of the present invention;

[0040] Fig.14 It is a schematic diagram of a mounting panel of a fiber coiling rack of a fiber coiling structure of an on-board optical module provided by an embodiment of the present invention.

[0041] Wherein, the accompanying drawings are marked as follows:

[0042] 1-PCB, 10-optical device, 11-first through hole, 12-horn socket, 2-fiber coil assembly, 20-fiber coil rack, 200-mounting plate, 2000-damping rotation pin, 2001-sub-pin, 2002-female pin, 201-fiber coil groove, 2010-PLC device, 202-fiber coil protrusion, 2030-upper platform, 2031-lower platform, 2032-connecting surface, 204-edge protrusion, 2040-cable management groove, 205-positioning notch, 206-first inclined plane, 208-mounting foot, 21-mounting panel, 210-optoelectronic hybrid connector, 211-connecting plate, 2110-slotted hole, 22-cover plate, 220-locking protrusion, 2200-lock head, 3-housing, 30-skylight, 31-limiting column. DETAILED DESCRIPTION

[0043] 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.

[0044] Unless the context requires otherwise, throughout the specification and claims, the term "including" is to be interpreted as open inclusion, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "examples", "specific examples" or "some examples" and the like are intended to indicate that specific features, structures, materials or characteristics associated with the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representation of the above terms does not necessarily refer to the same embodiment or example. In addition, the specific features, structures, materials or characteristics may be included in any one or more embodiments or examples in any appropriate manner, that is, although they may be carried in the embodiments or examples of the above terms due to reasons such as the order and position of appearance, it is not limited to that they can be carried in combination by one embodiment or example.

[0045] In the description of the present invention, it is necessary to understand that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0046] In the description of the present invention, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" may 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 "multiple" is two or more. In addition, for example, the same type of nouns may be described as two independent individuals by adding "A" and "B" at the end. In this case, the corresponding features defined as "A" and "B" are only used to distinguish the same type of individuals for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features.

[0047] When describing some embodiments, the expressions "coupling", "coupling" and "connection" and their derivatives may be used. For example, when describing some embodiments, the term "connection" may be used to indicate that two or more components are in direct physical or electrical contact with each other. For another example, when describing some embodiments, the term "coupling" may be used to indicate that two or more components are in direct physical or electrical contact. However, the terms "connection" or "coupling" may also refer to two or more components that are not in direct contact with each other, but still cooperate or interact with each other, such as "optical path coupling", "wireless connection", etc. The embodiments disclosed herein are not necessarily limited to the contents of the present invention.

[0048] In the description of the present invention, the expression "A and / or B" (where A and B are used to formally represent specific characteristic contents) will be involved, and the corresponding expressions include the following three combinations: only A, only B, and a combination of A and B.

[0049] As used herein, "about," "substantially," or "approximately" includes the stated value and an average value that is within an acceptable range of deviation from the particular value as determined by one of ordinary skill in the art taking into account the measurements in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system).

[0050] 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.

[0051] Embodiment 1:

[0052] Embodiment 1 of the present invention provides a fiber coil structure for an on-vehicle optical module, such as Figure 1 As shown, it includes: PCB1, fiber coil assembly 2 and shell 3; the fiber coil assembly 2 is fixedly arranged above PCB1, and the PCB1 and the fiber coil assembly 2 are placed in the shell 3; Figure 2 As shown, the fiber coiling assembly 2 includes a fiber coiling frame 20 and an installation panel 21, the fiber coiling frame 20 is fixedly connected to the PCB1, a plurality of optoelectronic hybrid connectors 210 are plugged into the installation panel 21, and the tail fibers of the optoelectronic hybrid connectors 210 are coiled into the fiber coiling frame 20; a plurality of optical devices 10 are arranged on the PCB1, the fiber coiling frame 20 includes an upper platform 2030, a lower platform 2031 and a connecting surface 2032, the two ends of the connecting surface 2032 are respectively fixedly connected to the upper platform 2030 and the lower platform 2031, there is a preset distance between the upper platform 2030 and the PCB1, and the lower platform 2031 is attached to the PCB1.

[0053] like Figure 2a and Figure 2bAs shown, the optical device 10 is not arranged in the middle of the PCB 1. By utilizing this structural characteristic, the lower platform 2031 can be located in the middle of the PCB 1 so that the lower platform 2031 is attached to the PCB 1. The preset spacing is greater than the height of the optical device 10. The preset spacing enables the upper platform 2030 to avoid the optical device 10, so that when the upper platform 2030 is located above the optical device 10, the optical device 10 will not be damaged. The specific value of the preset spacing can be determined according to the actual situation and is not specifically limited here.

[0054] Wherein, a mounting foot 208 is disposed at the bottom of the upper platform 2030 of the fiber coiling rack 20, and the mounting foot 208 and the PCB can be fixedly connected by bolts.

[0055] In addition to the optical device 10 , the PCB 1 is also provided with a bull-horn socket 12 , which is arranged on one side of the fiber coil assembly 2 and is used for plugging in external devices.

[0056] The present invention can effectively solve the problem of space occupation that may exist when the fiber coil assembly 2 and PCB1 of the vehicle-mounted optical module are separately arranged by stacking the PCB1 and the fiber coil assembly 2 through an integrated design, thereby reducing the space occupied by the PCB1 and the fiber coil assembly 2 in the vehicle and providing more room for the layout of other devices in the vehicle; secondly, the Z-shaped design of the fiber coil rack 20 makes full use of the space above the PCB1 and the characteristic that no optical device 10 is arranged in the middle of the PCB1, and the fiber coil rack 20 is set above the PCB1.

[0057] In order to fully illustrate the solution provided by the embodiment of the present invention, the solution provided by the above content is further elaborated in detail below.

[0058] In the above scheme, there are two configurations of the fiber coiling rack 20 and the installation panel 21. One configuration is that the installation panel 21 is rotatably connected to the fiber coiling rack 20, and the other configuration is that the installation panel 21 is disposed on the front end surface of the fiber coiling rack 20, and the installation panel 21 is fixedly connected to the fiber coiling rack 20 (such as Fig.14 shown).

[0059] In this embodiment, the installation panel 21 is rotatably connected to the fiber coiling frame 20 as an example. Figure 2As shown, specifically, when the installation panel 21 is rotatably connected with the fiber coiling rack 20, installation plates 200 are provided on both sides of the lower platform 2031 of the fiber coiling rack 20, and damping rotation pins 2000 are provided on the installation plates 200, and a connecting plate 211 is processed and provided at the tail of the installation panel 21, and a slotted hole 2110 is provided on the connecting plate 211, and the slotted hole 2110 is slidably connected with the damping rotation pin 2000, so that the installation panel 21 can rotate within a preset range. When the installation panel 21 is in a fixed state, one end of the slotted hole 2110 close to the optoelectronic hybrid connector 210 abuts against the damping rotation pin 2000.

[0060] The aforementioned connection method, through the pull-out design of the installation panel 21, facilitates the installation and maintenance operations of the optoelectronic hybrid connector 210, and at the same time ensures that the installation panel 21 can remain horizontal during the operation of the optical module to reduce the bending of the optical fiber pigtail of the optoelectronic hybrid connector 210, effectively overcomes the signal transmission and integrity problems and cost problems existing in the existing arrangement method, optimizes the signal transmission path, and improves the transmission quality of the optical signal.

[0061] At the same time, in order to fix the mounting panel 21 and prevent it from shaking during use, Figure 3 As shown, the damping rotation pin 2000 includes a sub-pin 2001 and a female pin 2002 arranged on both sides of the mounting plate 200, the female pin 2002 is fixedly connected to the mounting plate 200, the sub-pin 2001 and the female pin 2002 are threadedly connected, and the sub-pin 2001 and the female pin 2002 are locked with each other, so that the mounting panel 21 can be locked. Figure 2 and Figure 3 The purpose of the pulled-out state shown is to ensure that the pigtail of the optoelectronic hybrid connector 210 is straight, thereby ensuring the stability and smoothness of signal transmission. For another solution, the installation panel 21 is arranged on the front end surface of the fiber coiling rack 20, and the installation panel 21 is fixedly connected to the fiber coiling rack 20, which will be described in Example 2.

[0062] In another alternative, if Figure 4As shown, the tail of the mounting panel 21 is processed and provided with a connecting plate 211, but in an alternative scheme, the connecting plate 211 is not provided with a slotted hole 2110, but is directly fixed with a damping rotating pin 2000. Compared with fixing by providing a slotted hole 2110 on the connecting plate 211, this method has a rotation center of the mounting panel 21 located at the tail of the connecting plate 211, so its stability is lower than the method of rotationally connecting the slotted hole 2110 and the damping rotating pin 2000. In the actual processing and production process, the preferred scheme is to provide a slotted hole 2110 on the connecting plate 211, and fix it by rotationally connecting the slotted hole 2110 and the damping rotating pin 2000.

[0063] In order to store the pigtails of the optoelectronic hybrid connector 210 in an orderly manner, Figure 5 As shown, the upper platform 2030 of the fiber coiling frame 20 is provided with a fiber coiling groove 201 , and a fiber coiling protrusion 202 is provided at the center of the fiber coiling groove 201 . The fiber coiling protrusion 202 is used to wind the pigtail. The pigtail of the optoelectronic hybrid connector 210 is coiled into the fiber coiling groove 201 . In actual application scenarios, if the pigtails of all optoelectronic hybrid connectors 210 are directly pulled into the fiber winding groove 201 for winding, all the pigtails need to be disassembled for maintenance, and it is impossible to quickly distinguish which optoelectronic hybrid connector 210 the entangled pigtails belong to. Based on this, an edge protrusion 204 is provided at the junction of the upper platform 2030 and the connection surface 2032, and a plurality of wire management grooves 2040 are provided on the edge protrusion 204. The wire management grooves 2040 are used to accommodate and fix the pigtails of the optoelectronic hybrid connector 210. The pigtails of the optoelectronic hybrid connector 210 extend from the tail of the optoelectronic hybrid connector 210 and are wound into the fiber winding groove 201 through the wire management grooves 2040. Each of the wire management grooves 2040 is provided corresponding to one optoelectronic hybrid connector 210.

[0064] For the stability of the optical module, a PLC device 2010 is provided in the fiber tray slot 201 of the fiber tray frame 20. The PLC device 2010 is used for transmission, distribution, modulation, filtering, attenuation and regulation of optical signals.

[0065] Since the pigtail and the optical device 10 of the optoelectronic hybrid connector 210 are very sensitive and easily damaged by dust, dirt and other pollutants, and the pigtail is easily damaged by pulling, bending and other mechanical damages during the pulling process of the optoelectronic hybrid connector 210, the stability and reliability of optical fiber communication, as well as dust and pollution prevention are the key to the stable operation of the optical module. Based on this, Figure 6 and Figure 7As shown, the fiber coil assembly 2 further includes a cover plate 22, a plurality of positioning notches 205 are arranged at the edge of the upper platform 2030 of the fiber coil rack 20, and a plurality of locking protrusions 220 corresponding to the positioning notches 205 are arranged on the side of the cover plate 22, as shown in FIG. Figure 8 As shown, the lower end of the locking protrusion 220 is provided with a lock head 2200, and the lock head 2200 is used to lock with the positioning notch 205. Specifically, in order to facilitate the installation of the cover plate 22 on the fiber coiling rack 20, refer to Figure 7 As shown, the upper edge of the positioning notch 205 is provided with a first inclined surface 206, and the locking protrusion 220 can slide down along the first inclined surface 206 until it is clamped on the lower surface of the fiber coiling rack 20. By setting the cover plate 22 to seal the upper platform 2030 of the fiber coiling rack 20, pollutants can be effectively prevented from entering the fiber coiling slot 201, thereby protecting the optical fiber and the optical device 10 from pollution, especially in a vehicle-mounted environment, where dust may be raised or other pollutants may be encountered during the driving of the vehicle, and the sealing cover plate 22 provides an additional layer of protection. In addition, the cover plate 22 limits and fixes the pigtail in a certain space in the fiber coiling slot 201, and limits the activity space of the pigtail to the space between the cover plate 22 and the upper platform 2030 of the fiber coiling rack 20, which helps to arrange the pigtail in an orderly manner. In addition to the above functions, in a vehicle-mounted environment, there may be various electromagnetic interference sources, such as engines, motors, etc., so the cover plate 22 can provide a certain electromagnetic shielding effect to reduce the impact of external electromagnetic interference on optical fiber communication.

[0066] In order to facilitate the maintenance and replacement of the optoelectronic hybrid connector 210 without disassembling the optical module fiber coil structure as a whole, Fig. 9 As shown, the upper surface of the housing 3 is provided with a skylight 30, and the skylight 30 is used to expose the installation panel 21. When the optoelectronic hybrid connector 210 is inspected and replaced, the sub-pin 2001 of the damping rotation pin 2000 is loosened, the installation panel 21 is pulled outward and then rotated upward, and the installation panel 21 can be directly inspected and replaced through the skylight 30.

[0067] During the driving of the vehicle, due to factors such as uneven road surface, friction between tires and the ground, engine operation, and structural characteristics of the vehicle itself, vibrations will inevitably occur, which is not conducive to the stable transmission of signals in the vehicle-mounted optical module. Based on this, in order to ensure the stable installation of the optoelectronic hybrid connector 210 on the mounting panel 21 as much as possible, to prevent the mounting panel 21 from falling and damaging the optical module chip below it, and to ensure the stable placement of the PCB1 in the housing 3, as shown in FIG. Fig.10 and Fig.11As shown, two limiting posts 31 are arranged on the inner bottom surface of the housing 3, and two first through holes 11 are arranged on the PCB 1. The two limiting posts 31 are respectively inserted into the two first through holes 11, and the limiting posts 31 support the mounting panel 21. Thus, the mounting panel 21 is kept stable and parallel to the PCB 1, thereby ensuring that the pigtail of the optoelectronic hybrid connector 210 is in a straight state in the working state.

[0068] Based on the above scheme, an embodiment of the present invention provides a method for using a fiber coil structure of an on-board optical module on the basis of the above scheme, which is applicable to the on-board optical module fiber coil structure described in the above scheme, such as Fig.12 As shown, including:

[0069] In step S1 , when installing or repairing the optoelectronic hybrid connector 210 , the installation panel 21 is pulled out obliquely upward, adjusted to a suitable position, and then the installation panel 21 is pressed down and fixed to perform installation or repair work on the optoelectronic hybrid connector 210 .

[0070] Specifically, the structural position when the vehicle-mounted optical module is in the working state is taken as the initial state, at this time, the installation panel 21 is placed horizontally, and the end of the slotted hole 2110 close to the optoelectronic hybrid connector 210 abuts against the damping rotation pin 2000, and the sub-pin 2001 of the damping rotation pin 2000 is in a locked state; when it is necessary to install or repair the optoelectronic hybrid connector 210, the sub-pin 2001 is loosened, the installation panel 21 is pulled, the installation panel 21 is lifted up to expose the skylight 30 of the housing 3, and then pressed downward obliquely, and the sub-pin 2001 and the female pin 2002 are locked to fix the installation panel 21 (see Fig.13a As shown), the optoelectronic hybrid connector 210 can be installed or repaired.

[0071] In step S2 , after the installation or maintenance of the optoelectronic hybrid connector 210 is completed, the installation panel 21 is released, the installation panel 21 is rotated to a horizontal state, and the installation panel 21 is pushed inward to an extreme position to fix the installation panel 21 .

[0072] Specifically, similar to step S1, after the installation or maintenance of the optoelectronic hybrid connector 210 is completed, the sub-pin 2001 is loosened and the installation panel 21 is rotated to a horizontal position (see Fig.13b As shown), make the installation panel 21 abut against the top of the limiting column 31, push the installation panel 21 backward, make the slotted hole 2110 close to one end of the optoelectronic hybrid connector 210 abut against the damping rotation pin 2000, tighten the sub-pin 2001, and the optical module can start working.

[0073] Embodiment 2:

[0074] The embodiment of the present invention provides a second vehicle-mounted optical module coil fiber structure based on the embodiment 1. The difference from the solution provided in the above embodiment 1 is that in the present embodiment, Fig.14 As shown, the installation panel 21 is arranged on the front end surface of the fiber coiling frame 20, and the installation panel 21 is fixedly connected to the fiber coiling frame 20. The installation panel 21 is arranged at the front end of the fiber coiling frame 20, and the female end of the optoelectronic hybrid connector 210 is installed on the installation panel 21. Based on this, the fiber coiling assembly 2 of the second vehicle-mounted optical module fiber coiling structure provided by the embodiment of the present invention is the same as the fiber coiling assembly 2 described in the embodiment 1, including: a fiber coiling frame 20 and a cover plate 22 (not shown in the figure, refer to Figure 6 As shown, the front end face of the fiber coiling rack 20 is provided with an installation panel 21, and the installation panel 21 is used to install the optoelectronic hybrid connector 210. The cover plate 22 covers the top of the fiber coiling rack 20, and closes the fiber coiling rack 20 to prevent dust or other pollutants from contaminating the optical module, and further avoids other structures in the vehicle space from causing signal interference to the optical fiber communication process. The specific structure of the cover plate 22 and the fiber coiling rack 20 has been described in detail in Example 1, and will not be repeated here.

[0075] 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. A fiber coil structure for an on-vehicle optical module, characterized in that: include: PCB (1), a fiber coil assembly (2) and a housing (3); the fiber coil assembly (2) is fixedly arranged above the PCB (1), and the PCB (1) and the fiber coil assembly (2) are placed in the housing (3); The fiber coiling assembly (2) comprises a fiber coiling frame (20) and a mounting panel (21); the fiber coiling frame (20) is fixedly connected to the PCB (1); a plurality of optoelectronic hybrid connectors (210) are plugged into the mounting panel (21); and the fiber tails of the optoelectronic hybrid connectors (210) are coiled into the fiber coiling frame (20); A plurality of optical devices (10) are arranged on the PCB (1); the fiber tray (20) comprises an upper platform (2030), a lower platform (2031) and a connection surface (2032); two ends of the connection surface (2032) are respectively fixedly connected to the upper platform (2030) and the lower platform (2031); a preset distance exists between the upper platform (2030) and the PCB (1); and the lower platform (2031) is attached to the PCB (1).

2. The fiber coil structure of the vehicle-mounted optical module according to claim 1, characterized in that: The installation panel (21) is rotatably connected to the fiber coiling frame (20); or, the installation panel (21) is arranged on the front end surface of the fiber coiling frame (20), and the installation panel (21) is fixedly connected to the fiber coiling frame (20).

3. The fiber coil structure of the vehicle-mounted optical module according to claim 2, characterized in that: When the installation panel (21) is rotationally connected to the fiber coiling rack (20), installation plates (200) are provided on both sides of the lower platform (2031), and damping rotation pins (2000) are provided on the installation plates (200). A connecting plate (211) is processed and provided at the tail of the installation panel (21), and a slotted hole (2110) is provided on the connecting plate (211). The slotted hole (2110) is slidably connected to the damping rotation pin (2000) so as to enable the installation panel (21) to rotate within a preset range.

4. The fiber coil structure of the vehicle-mounted optical module according to claim 3, characterized in that: The damping rotation pin (2000) comprises a sub-pin (2001) and a mother pin (2002) which are arranged on both sides of the mounting plate (200), the mother pin (2002) is fixedly connected to the mounting plate (200), the sub-pin (2001) and the mother pin (2002) are threadedly connected, and the sub-pin (2001) and the mother pin (2002) are locked with each other.

5. The fiber coil structure of the vehicle-mounted optical module according to claim 1, characterized in that: The upper platform (2030) is provided with a fiber coiling groove (201), the center of which is provided with a fiber coiling protrusion (202), the fiber coiling protrusion (202) being used for winding a pigtail, and the pigtail of the optoelectronic hybrid connector (210) is coiled into the fiber coiling groove (201).

6. The fiber coil structure of the vehicle-mounted optical module according to claim 5, characterized in that: An edge protrusion (204) is provided at the junction of the upper platform (2030) and the connection surface (2032); a plurality of wire management grooves (2040) are provided on the edge protrusion (204); the wire management grooves (2040) are used to receive and fix the pigtail of the optoelectronic hybrid connector (210); the pigtail of the optoelectronic hybrid connector (210) extends from the tail of the optoelectronic hybrid connector (210), passes through the wire management grooves (2040), and is coiled into the fiber coiling groove (201).

7. The fiber coil structure of the vehicle-mounted optical module according to any one of claims 1 to 6, characterized in that: The fiber coil assembly (2) also includes a cover plate (22), and a plurality of positioning notches (205) are arranged at the edge of the upper platform (2030) of the fiber coil rack (20). The side surface of the cover plate (22) is provided with a plurality of locking protrusions (220) corresponding to the positioning notches (205), and a locking head (2200) is arranged at the lower end of the locking protrusion (220), and the locking head (2200) is used to lock with the positioning notch (205).

8. The fiber coil structure of the vehicle-mounted optical module according to any one of claims 1 to 6, characterized in that: The upper surface of the housing (3) is provided with a skylight (30), and the skylight (30) is used to expose the installation panel (21).

9. The fiber coil structure of the vehicle-mounted optical module according to any one of claims 1 to 6, characterized in that: Two limiting columns (31) are arranged on the inner bottom surface of the housing (3), two first through holes (11) are arranged on the PCB (1), and the two limiting columns (31) are respectively inserted into the two first through holes (11), and at the same time, the limiting columns (31) play a supporting role for the installation panel (21).

10. A method for using a fiber coil structure for an on-board optical module, applicable to the fiber coil structure for an on-board optical module according to any one of claims 1 to 9, characterized in that: include: When installing or repairing the optoelectronic hybrid connector (210), the installation panel (21) is pulled out obliquely upward, adjusted to a suitable position, and then the installation panel (21) is pressed down and fixed to perform installation or repair work on the optoelectronic hybrid connector (210); After the installation or maintenance of the optoelectronic hybrid connector (210) is completed, the installation panel (21) is released, the installation panel (21) is rotated to a horizontal state, and the installation panel (21) is pushed inward to an extreme position to fix the installation panel (21).

Images