Optical element fixing structure

Abstract

This invention discloses an optical element fixing structure, comprising: a module housing, a fixing body, a first fixing unit, a second fixing unit, a third fixing unit, and an elastic fixing unit. The first fixing unit is used to snap-fit ​​and fix the first end of the fiber optic connector and the first end of the optical element to the first end of the fixing body. The second fixing unit is used to attach and fix the second end of the fiber optic connector and the second end of the optical element to the second end of the fixing body. The third fixing unit is used to fix the sides of the optical element to both sides of the fixing body. The optical element fixing structure of this invention secures the fiber optic connector and the optical element through a clever fit between the optical element fixing structure and the structure of the fiber optic connector and the optical element, eliminating the need for auxiliary parts, simplifying the components of the optical element fixing structure, and making installation and disassembly more convenient.

Description

Technical Field

[0001] This invention relates to the field of optical element fixing, and particularly to an optical element fixing structure. Background Technology

[0002] Optical modules are responsible for photoelectric signal conversion and occupy a fundamental and crucial position in the optical communication industry, closely related to people's lives. With the rapid development of the information technology industry and the rapid growth of data traffic, the global communication system's demand for optical modules is increasing, thus placing higher requirements on optical modules in terms of reliability, electromagnetic compatibility, and maintainability.

[0003] Optical components (such as lenses) are located within the optical module and play a crucial role in the photoelectric signal conversion process. These components must be reliably connected to the optical fiber and circuit board to ensure stable photoelectric signal transmission. Currently, there are two main methods for fixing optical components to the optical fiber: the first is to glue the fiber optic connector to the optical component. The disadvantage of this method is that it cannot be repaired when the optical module malfunctions, requiring the fiber optic connector, optical component, and circuit board to be scrapped. The second method uses a plastic sleeve to hold the fiber optic connector to the optical component. Compared to the first method, this method improves the maintainability of the optical module. However, because the photoelectric chip below the optical component emits significant electromagnetic radiation, a metal shield is generally required to prevent electromagnetic leakage. The plastic sleeve occupies the limited space inside the optical module, leaving no room for a metal shield, thus significantly reducing the electromagnetic compatibility performance of the optical module. Summary of the Invention

[0004] In view of this, the present invention provides an optical element fixing structure that positions the optical element and the fiber optic interface in all directions by means of bonding or snapping, solving the problem that optical modules cannot be repaired when they malfunction in the prior art.

[0005] To achieve one, some, or all of the above objectives, or other objectives, the present invention proposes an optical element fixing structure for fixing an optical element and a fiber optic connector. The optical element is provided with a front-end socket, and the fiber optic connector is disposed within the optical element through the front-end socket. The optical element fixing structure includes:

[0006] The module housing includes an upper housing and a lower housing;

[0007] The fixed main body is disposed within the module housing;

[0008] A first fixing unit is disposed at the first end of the fixing body and is used to snap and fix the first end of the optical fiber connector and the first end of the optical element to the first end of the fixing body.

[0009] The second fixing unit is disposed at the second end of the fixing body and is used to attach and fix the second end of the optical fiber connector and the second end of the optical element to the second end of the fixing body.

[0010] The third fixing unit is disposed on the side of the fixing body and is used to fix the side of the optical element to both sides of the fixing body.

[0011] In the optical element fixing structure described in this application, the optical element fixing structure is a metal part.

[0012] In the optical element fixing structure described in this application, the second fixing unit includes a second connecting part for connecting with other components and a second clamping part for fitting and fixing with the optical fiber connector;

[0013] The second clamping part and the second connecting part are bent, and the second clamping part is located on the side close to the second end of the fixing body.

[0014] The optical element fixing structure described in this application includes an elastic fixing unit disposed between the fixing body and the upper housing. The elastic fixing unit is used to limit the vertical degree of freedom of the optical element and the optical fiber interface.

[0015] In the optical element fixing structure described in this application, the elastic fixing unit includes an elastic connecting portion for connecting with the second connecting portion; the elastic connecting portion and the second connecting portion are set at an acute angle.

[0016] In the optical element fixing structure described in this application, the elastic fixing unit is a wave-shaped metal part.

[0017] In the optical element fixing structure described in this application, the elastic fixing unit includes a main body connecting part for connecting the fixing body, an elastic fitting part for fitting and fixing to the fixing body, and an elastic compression part for connecting the main body connecting part and the elastic fitting part.

[0018] The main body connecting parts are symmetrically arranged on both sides of the fixed main body;

[0019] The elastic compression section is symmetrically arranged above the fixed body.

[0020] In the optical element fixing structure described in this application, the elastic fixing unit includes a main body connecting part for connecting the fixing body, an elastic fitting part for fitting and fixing to the fixing body, and an elastic compression part that cooperates with the upper housing.

[0021] The main body connecting parts are symmetrically arranged on both sides of the fixed main body;

[0022] The elastic fitting part is symmetrically arranged above the fixed body and connects the body connecting part and the elastic compression part.

[0023] In the optical element fixing structure described in this application, the first fixing unit is provided with an opening for accommodating optical fibers, and locking points are provided on both sides of the opening. A locking hole is provided at the corresponding position of the first end of the optical fiber connector. The optical fiber connector is fixed to the first fixing unit by the locking points and the locking hole.

[0024] In the optical element fixing structure described in this application, the third fixing unit is provided with a first buckle, and the optical element is provided with a first slot on both sides corresponding to the first buckle; the optical element is fixed to the third fixing unit by the first buckle and the first slot.

[0025] Compared to existing technologies, the advantages of this invention are as follows: In this embodiment, the first fixing unit of the optical element fixing structure fixes the first end of the optical element and the first end of the fiber optic connector; the second fixing unit fixes the second end of the optical element and the second end of the fiber optic connector; the third fixing unit cooperates with the module housing to fix the upper and lower end faces of the optical element and the fiber optic connector; and the elastic fixing unit fixes both sides of the optical element and the fiber optic connector. That is, the positioning of the optical element and the fiber optic connector by the first fixing unit, the second fixing unit, the third fixing unit, and the elastic fixing unit enhances the stability of the connection between the optical element and the fiber optic connector, and improves the stability of photoelectric signal transmission.

[0026] Furthermore, when the optical element's fixing structure is made of metal, it is equivalent to using a metal component to wrap the optoelectronic chip, achieving the effect of adding a metal shield, reducing leakage, and effectively blocking electromagnetic radiation located below the optical element, thereby improving the electromagnetic compatibility performance of the optical module. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A schematic diagram of an optical element fixing structure provided in an embodiment of the present invention. Figure 1 ;

[0029] Figure 2 A schematic diagram of an optical element fixing structure provided in an embodiment of the present invention. Figure 2 ;

[0030] Figure 3 A schematic diagram of an optical element fixing structure provided in an embodiment of the present invention. Figure 3 ;

[0031] Figure 4 A schematic diagram of an optical element fixing structure provided in an embodiment of the present invention. Figure 4 ;

[0032] Figure 5 for Figure 1 A schematic diagram of the first angle structure of the optical component fixation device;

[0033] Figure 6 for Figure 1 A schematic diagram of the second angle structure of the optical component fixation device;

[0034] Figure 7 for Figure 1 Side view of the optical component holder;

[0035] Figure 8 for Figure 1 Assembly diagram of the optical component fixing structure;

[0036] Figure 9 This is a schematic diagram of another structure for an optical component holder;

[0037] Figure 10 for Figure 9 An oblique view of the optical component fixation device;

[0038] Figure 11 for Figure 9 Side view of the optical component holder;

[0039] Figure 12 for Figure 9 An assembly diagram illustrating the application of optical component fixers in optical component fixing structures;

[0040] Figure 13 This is a schematic diagram of another structure for an optical component holder;

[0041] Figure 14 for Figure 13 A schematic diagram of the optical component fixation device;

[0042] Figure 15 for Figure 13 Side view of the optical component holder;

[0043] Figure 16 for Figure 13 An assembly diagram of an optical component fixator applied to an optical component fixing structure.

[0044] in:

[0045] 10. Module housing; 101. Upper housing; 102. Lower housing; 11. Optical element holder; 111. Fixing body; 1111. First end of fixing body; 1112. Second end of fixing body; 112. First fixing unit; 1121. Opening; 1122. Locking point; 113. Second fixing unit; 1131. Second connecting part; 1132. Second clamping part; 114. Third fixing unit; 1141. First buckle; 115. Elastic fixing Unit; 1151, First elastic compression part; 1152, Elastic connection part; 1153, Main body connection part; 1154, Elastic compression part; 1155, Elastic bonding part; 12, Optical element; 121, First end of optical element; 122, Second end of optical element; 123, First slot; 13, Fiber optic connector; 131, First end of fiber optic connector; 132, Second end of fiber optic connector; 133, Slot; 14, Fiber optic cable; 15, Circuit board. Detailed Implementation

[0046] In the description of this invention, the terms "inner", "outer", "longitudinal", "lateral", "upper", "lower", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and do not require that this invention must be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] Please refer to Figures 1-4The optical element 12 fixing structure provided in this invention is used to cooperate with the module housing 10 to fix the optical element 12 and the fiber optic connector 13. The optical element 12 fixing structure includes the module housing 10 and an optical element holder 11. The optical element holder 11 includes a fixing body 111, a first fixing unit 112, a second fixing unit 113, a third fixing unit 114, and an elastic fixing unit 115. In this application, the fiber optic connector 13 is disposed within the optical element 12, and the optical element 12 is located within the optical element 12 fixing structure. Specifically, in this application, the optical element 12 is provided with a front-end socket, and the first end 131 of the fiber optic connector is provided with a pin. The optical element 12 and the circuit board 15 are coupled and bonded to form an integral unit. Then, the fiber optic connector 13 connected to the fiber optic 14 is inserted into the front-end socket of the optical element 12. The pin ensures that the fiber optic connector 13 is connected to the optical element 12, so that the fiber optic connector 13 is located inside the optical element 12. After that, the optical element 12 and the fiber optic connector 13 are fixed in the optical element holder 11, and the optical element holder 11 is set in the module housing 10 for further fixation.

[0049] Please refer to Figures 1-4 In one embodiment of the present invention, an optical element 12 fixing structure is provided for fixing the optical element 12 and the fiber optic connector 13. The optical element 12 is provided with a front end socket, and the fiber optic connector 13 is disposed in the optical element 12 through the front end socket. The optical element 12 fixing structure includes: a module housing 10, a fixing body 111, a first fixing unit 112, a second fixing unit 113, a third fixing unit 114, and an elastic fixing unit 115.

[0050] The fixed body 111 is located inside the module housing 10.

[0051] The first fixing unit 112 is disposed at the first end 1111 of the fixing body and is used to snap and fix the first end 131 of the optical fiber connector and the first end 121 of the optical element to the first end 1111 of the fixing body.

[0052] The second fixing unit 113 is disposed at the second end 1112 of the fixing body and is used to attach and fix the second end 132 of the optical fiber connector and the second end 122 of the optical element to the second end 1112 of the fixing body.

[0053] The third fixing unit 114 is disposed on the side of the fixing body 111 and is used to fix the side of the optical element 12 to both sides of the fixing body 111.

[0054] In this embodiment, the optical element 12 fixing structure improves the stability of the fixing of the optical fiber connector 13 and the optical element 12 under harsh conditions such as impact or vibration by setting a first fixing unit 112 to snap-fix the first end 131 of the optical fiber connector and the first end 121 of the optical element to the first end 1111 of the fixing body, setting a second fixing unit 113 to attach and fix the second end 132 of the optical fiber connector and the second end 122 of the optical element to the second end 1112 of the fixing body, and setting a third fixing unit 114 to snap-fix the side of the optical element 12 to both sides of the fixing body 111. Furthermore, the optical element 12 fixing structure is fixed to the optical element 12 and the fiber optic connector 13 by means of snap-fit ​​or bonding. That is, the optical element 12 fixing structure fixes the fiber optic connector 13 and the optical element 12 by the ingenious cooperation between the optical element 12 fixing structure and the fiber optic connector 13 and the optical element 12, without the need for the assistance of other parts, which simplifies the structure of the optical element 12 fixing structure and makes installation and disassembly more convenient.

[0055] Because the fiber optic connector 13 and optical element 12 can be easily installed and removed, when the optical module malfunctions, the fiber optic connector 13 and optical element 12 can be disassembled promptly for troubleshooting. Once the faulty component is identified, it can be replaced or repaired specifically, without having to scrap the fiber optic cable 14 and optical element 12, thus saving costs. Furthermore, the easy-to-disassemble design of the fiber optic connector 13 and optical element 12 improves the efficiency and accuracy of troubleshooting, and also facilitates R&D and production personnel in analyzing the causes of such malfunctions, enhancing their ability to avoid them.

[0056] In this embodiment, the first fixing unit 112 of the optical element 12 fixing structure fixes the first end 121 of the optical element and the first end 131 of the fiber optic connector. The second fixing unit 113 fixes the second end 122 of the optical element and the second end 132 of the fiber optic connector. The third fixing unit 114 cooperates with the module housing 10 to fix the upper and lower end faces of the optical element 12 and the fiber optic connector 13. The elastic fixing unit 115 fixes both sides of the optical element 12 and the fiber optic connector 13. That is, the optical element 12 fixing structure, through the first fixing unit 112, the second fixing unit 113, the third fixing unit 114 and the elastic fixing unit 115, provides omnidirectional positioning for the optical element 12 and the fiber optic connector 13, enhancing the stability of the connection between the optical element 12 and the fiber optic connector 13 and improving the stability of photoelectric signal transmission.

[0057] Please refer to Figures 1-4In one embodiment, the fixing structure of the optical element 12 is a metal component, i.e., the fixing structure of the optical element 12 is made of metal material. In this embodiment, a circuit board 15 with a photoelectric chip is disposed below the optical element 12. The optical element 12 and the circuit board 15 are coupled and bonded together to form a whole. Then, the fiber optic connector 13 connected to the optical fiber 14 is inserted into the front end socket of the optical element 12 and fixed by the fixing structure of the optical element 12. When the fixing structure of the optical element 12 is a metal component, it is equivalent to using a metal component to wrap the photoelectric chip, achieving the effect of adding a metal shield, reducing leakage, and effectively blocking electromagnetic radiation located below the optical element 12, thereby improving the electromagnetic compatibility performance of the optical module.

[0058] Please refer to Figures 5-8 In one embodiment, the second fixing unit 113 includes a second connecting part 1131 for connecting with other components and a second clamping part 1132 for fitting and fixing with the fiber optic connector 13.

[0059] The second clamping part 1132 and the second connecting part 1131 are bent and disposed, and the second clamping part 1132 is located on the side close to the second end 1112 of the fixing body.

[0060] When the second clamping part 1132 and the fiber optic connector 13 are not provided in the optical element holder 11, the distance L1 between the second clamping part 1132 and the first fixing unit 112 is less than or equal to the distance L2 between the first end 1111 of the fixing body and the second end 1112 of the fixing body, that is, L1≤L2.

[0061] When the optical element holder 11 is provided with a second clamping part 1132 and an optical fiber connector 13, the distance L1 between the second clamping part 1132 and the first fixing unit 112 is greater than or equal to the distance L2 between the first end 1111 of the fixing body and the second end 1112 of the fixing body, that is, L1≥L2.

[0062] In this embodiment, after the optical element 12 and the fiber optic connector 13 are placed inside the optical element holder 11, the distance L1 between the second clamping part 1132 and the first fixing unit 112 is increased by the support of the optical element 12 and the fiber optic connector 13. This causes the second clamping part 1132 to generate an interaction force with the second end 132 of the fiber optic connector and the second end 122 of the optical element. The second clamping part 1132 fits and is fixed to the second end 132 of the fiber optic connector and the second end 122 of the optical element, making the connection between the optical element 12 and the fiber optic connector 13 inside the optical element holder 11 more stable. It should be noted that the second fixing member has a certain elasticity and has the ability to restore its original shape after being subjected to a certain force. When subjected to harsh environments such as impact or vibration, due to its elasticity, it can maintain the stability of the connection between the optical element 12 and the fiber optic connector 13.

[0063] Please refer to Figure 5 In one embodiment, the optical element 12 fixing structure includes an elastic fixing unit 115 disposed between the fixing body 111 and the upper housing 101. The elastic fixing unit 115 is used to limit the vertical degree of freedom of the optical element 12. In this embodiment, the optical element 12 fixing structure fixes the fiber optic connector 13 and both ends of the optical element 12 with the first fixing unit 112 and the second fixing unit 113, fixes both sides of the optical element 12 with the second fixing unit 113, and limits the vertical degree of freedom of the optical element 12 with the elastic fixing unit 115. This comprehensively limits the fiber optic interface 14 and the optical element 12, thereby enabling the optical module to transmit photoelectric signals stably under harsh conditions such as impact and vibration, improving the stability and reliability of photoelectric signal transmission.

[0064] Please refer to Figure 7 and Figure 8 In one embodiment, the elastic fixing unit 115 includes an elastic connecting portion 1152 for connecting to the second connecting portion 1131 and a first elastic compression portion 1151 that fits against the upper housing 101. The elastic connecting portion 1152 and the second connecting portion 1131 are arranged at an acute angle. When the upper housing 101 and the lower housing 102 are closed, the elastic fixing unit 115 located between the fixing body 111 and the upper housing 101 is compressed and deformed. The first elastic compression portion 1151 is compressed between the optical element 12 and the upper housing 101 and fits against the optical element 12. Since the elastic connecting part 1152 and the second connecting part 1131 are set at an acute angle, when the first elastic compression part 1151 is compressed, the first elastic compression part 1151 generates a horizontal component force on the second fixing unit 113 through the elastic connecting part 1152, which is horizontal and points to the first end 1111 of the fixing body. This increases the contact strength between the second clamping part 1132 and the second end 132 of the fiber optic connector and the second end 122 of the optical element, thereby improving the stability and reliability of fixing the fiber optic 14 interface and the optical element 12, and improving the stability of photoelectric signal transmission of the optical module under harsh conditions such as impact and vibration.

[0065] Please refer to Figure 7In one embodiment, the elastic fixing unit 115 can be a corrugated metal component. In this embodiment, when the upper housing 101 and the lower housing 102 are closed, the elastic fixing unit 115 is compressed and deformed. The upper housing 101 presses downwards onto the elastic fixing unit 115, thereby exerting a force on the elastic fixing unit towards the lower housing 102, causing the elastic fixing unit 115 to be in a compressed state. At this time, the elastic fixing unit 115 exerts a force on the fixing body 111 towards the lower housing 102, so that the fixing body 111 and the optical element 12 are pressed tightly together, thereby making the optical element 12 and the fiber optic connector 13 pressed tightly together. When subjected to harsh environments such as impact or vibration, the elastic fixing unit 115 has a buffering and vibration-absorbing function, which can also maintain the stability of the connection between the optical element 12 and the fiber optic connector 13.

[0066] Please refer to Figures 9-12 Optionally, the elastic fixing unit 115 includes a main body connecting part 1153 for connecting the fixing body 111, an elastic fitting part 1155 for fitting and fixing to the fixing body 111, and a second elastic compression part 1154 for connecting the main body connecting part 1153 and the elastic fitting part.

[0067] The main body connecting parts 1153 are symmetrically arranged on both sides of the fixed main body 111.

[0068] The second elastic compression part 1154 is symmetrically arranged above the fixed body 111.

[0069] In this embodiment, when the upper housing 101 and the lower housing 102 are closed, the elastic fixing unit is squeezed and deformed by the module housing 101. The second elastic compression part 1154 is in close contact with the inner surface of the module housing 10, and the elastic contact part is in close contact with the fixing body 111. This causes the elastic fixing unit to apply a certain pressure to the fixing body 111 in the direction of the lower housing 102, thereby making the elastic fixing unit, the optical element 12 and the fiber optic connector 13 fit more tightly in the first direction, thereby improving the stability of the fixing of the optical element 12 and the fiber optic connector 13.

[0070] Please refer to Figures 13-16 Optionally, the elastic fixing unit 115 includes a main body connecting part 1153 for connecting the fixing body 111, an elastic fitting part 1155 for fitting and fixing to the fixing body 111, and a second elastic compression part 1154 that cooperates with the upper housing 101.

[0071] The main body connecting parts 1153 are symmetrically arranged on both sides of the fixed main body 111.

[0072] The elastic fitting part 1155 is symmetrically arranged above the fixed body 111 and connects the main body connecting part 1153 and the second elastic compression part 1154.

[0073] In this embodiment, the elastic fixing unit is deformed by the module housing 10, the elastic fitting part 1155 fits against the fixing body 111, and the second elastic compression part 1154 is in close contact with the inner surface of the module housing 10, so that the elastic fixing unit applies a certain pressure to the fixing body 111 in the direction of the lower housing 102, thereby making the elastic fixing unit, the optical element 12 and the fiber optic connector 13 fit more tightly in the first direction, thereby improving the stability of the fixing of the optical element 12 and the fiber optic connector 13.

[0074] Please refer to Figure 8 In one embodiment, the first fixing unit 112 has an opening 1121 for accommodating the optical fiber 14, and locking points 1122 on both sides of the opening 1121. A corresponding locking hole is provided at the first end 131 of the optical fiber connector. The optical fiber connector 13 is secured to the first fixing unit 112 by the locking points 1122 and the locking holes 133. In this embodiment, the optical fiber connector 13 is secured to the first fixing unit 112 by the cooperation of the locking points 1122 and the locking holes 133, making assembly and disassembly convenient, improving assembly and disassembly efficiency and maintenance efficiency. Furthermore, it facilitates replacement when one component is damaged, saving materials and being more environmentally friendly.

[0075] Please refer to Figure 2 and Figure 6 In one embodiment, the third fixing unit 114 is provided with a first buckle 1141, and the optical element 12 has first slots 123 on both sides corresponding to the first buckle 1141. The optical element 12 is fixed to the third fixing unit 114 by the first buckle 1141 and the first slots 123. In this embodiment, the optical element 12 and the third fixing unit 114 are fixed by the cooperation of the first buckle 1141 and the first slots 123, which makes it easy to install and remove the two, improves the efficiency of installation and removal and maintenance, and facilitates replacement when one of the components is damaged, saving materials and being more environmentally friendly.

[0076] The above-disclosed embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, any equivalent variations made in accordance with the claims of this application are still within the scope of the present invention.

Claims

1. An optical element fixing structure for fixing an optical element (12) and an optical fiber connector (13), wherein the optical element (12) is provided with a front end socket, and the optical fiber connector (13) is disposed within the optical element (12) through the front end socket, characterized in that, The optical element fixing structure includes: The module housing (10) includes an upper housing (101) and a lower housing (102). The fixed body (111) is disposed inside the module housing (10); The first fixing unit (112) is disposed at the first end (1111) of the fixing body and is used to snap and fix the first end (131) of the optical fiber connector and the first end (121) of the optical element to the first end (1111) of the fixing body. The second fixing unit (113) is disposed at the second end (1112) of the fixing body and is used to attach and fix the second end (132) of the optical fiber connector and the second end (122) of the optical element to the second end (1112) of the fixing body. The third fixing unit (114) is disposed on the side of the fixing body (111) and is used to fix the side of the optical element (12) to both sides of the fixing body (111); The optical element (12) fixing structure includes an elastic fixing unit (115) disposed between the fixing body (111) and the upper housing (101); the elastic fixing unit (115) includes an elastic connecting part (1152) for connecting with the second connecting part (1131) and a first elastic compression part (1151) that fits against the upper housing (101); the second fixing unit (113) includes a second connecting part (1131) for connecting with other components and a second clamping part (1132) for fitting and fixing against the fiber optic connector (13); wherein, the elastic connecting part (1152) and the second connecting part (1131) are arranged at an acute angle, and when the first elastic compression part (1151) is compressed, the first elastic compression part (1151) generates a horizontal component force on the second fixing unit (113) through the elastic connecting part (1152) that is horizontal and points towards the first end (1111) of the fixing body.

2. The optical element fixing structure as described in claim 1, characterized in that, The optical element fixing structure is a metal part.

3. The optical element fixing structure as described in claim 2, characterized in that, The second fixing unit includes a second connecting part for connecting with other components and a second clamping part for fitting and fixing to the optical fiber connector; The second clamping part and the second connecting part are bent, and the second clamping part is located on the side close to the second end of the fixing body.

4. The optical element fixing structure as described in claim 1, characterized in that, The elastic fixing unit is a wave-shaped metal component.

5. The optical element fixing structure as described in claim 1, characterized in that, The elastic fixing unit includes a main body connecting part for connecting the fixing body, an elastic fitting part for fitting and fixing to the fixing body, and an elastic compression part for connecting the main body connecting part and the elastic fitting part. The main body connecting parts are symmetrically arranged on both sides of the fixed main body; The elastic compression section is symmetrically arranged above the fixed body.

6. The optical element fixing structure as described in claim 1, characterized in that, The elastic fixing unit includes a main body connecting part for connecting the fixing body, an elastic fitting part for fitting and fixing to the fixing body, and an elastic compression part that cooperates with the upper shell. The main body connecting parts are symmetrically arranged on both sides of the fixed main body; The elastic fitting part is symmetrically arranged above the fixed body and connects the body connecting part and the elastic compression part.

7. The optical element fixing structure according to any one of claims 1-6, characterized in that, The first fixing unit has an opening for accommodating optical fibers, and locking points are provided on both sides of the opening. A locking hole is provided at the corresponding position of the first end of the optical fiber connector. The optical fiber connector is fixed to the first fixing unit by the locking points and the locking hole.

8. The optical element fixing structure according to any one of claims 1-6, characterized in that, The third fixing unit is provided with a first buckle, and the optical element is provided with a first slot on both sides corresponding to the first buckle; the optical element is fixed to the third fixing unit by the first buckle and the first slot.

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