Pull ring and optical module

Abstract

The invention discloses a pull ring and an optical module. The pull ring comprises a pull ring body and an unlocking piece. The pull ring body is used for connecting a housing of the optical module. The unlocking piece is arranged on the pull ring body and used for unlocking the optical module and the optical cage, the unlocking piece and the pull ring body are of a split assembly structure, and the unlocking piece protrudes out of the side, opposite to the other sliding arm, of the sliding arm. In this way, the requirement for the precision of the pull ring machining technology can be lowered, and the height tolerance of the unlocking piece can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of optical modules, and in particular to a pull ring and an optical module. Background Art

[0002] Optical modules are optoelectronic devices that perform light-to-electricity and electricity-to-light conversion. In recent years, the global cloud computing data center market has continued to expand, 5G telecommunications network construction has been fully launched, and the market demand for high-speed optical modules has also increased day by day. Various series and types of products have been launched one after another to provide customers in the fields of cloud computing data centers, wireless access, and transmission with the best optical module solutions.

[0003] The optical module is usually equipped with a pull ring, which is used to release the lock between the optical module and the optical cage. The end of the pull ring has an unlocking structure. Since the size of the optical module is limited by industry standards, the unlocking structure is usually made of sheet metal, which has the advantages of small thickness and small space occupation. Generally, two bending structures are plated at the end of the sheet metal to form a depression and a protrusion to cooperate with the tongue (spring) on ​​the optical cage to achieve unlocking. Since the distance between the two bending structures is small, the precision requirements of the sheet metal process are high. In addition, due to process reasons such as the resilience of the unlocking structure, the height tolerance of the unlocking structure is large, which easily causes the overall width of the optical module to exceed the standard limit. Summary of the invention

[0004] The present application provides a pull ring and an optical module, which can reduce the requirements on the precision of the pull ring processing technology and can reduce the height tolerance of the unlocking part.

[0005] The present application provides a pull ring. The pull ring includes a pull ring body and an unlocking piece. The pull ring body is used to connect the housing of the optical module, and the pull ring body includes at least two sliding arms, and the sliding arms are arranged opposite to each other. The unlocking piece is arranged at the end of the sliding arm, and the unlocking piece is used to release the lock between the optical module and the optical cage, wherein the unlocking piece and the pull ring body are a separate assembly structure, and the unlocking piece protrudes from the side of the sliding arm facing away from the other sliding arm opposite to the sliding arm.

[0006] In one embodiment of the present application, the pull ring body also includes: a force-applying part, and each sliding arm is connected to the force-applying part; wherein, the unlocking piece is arranged at the end of the sliding arm away from the force-applying part, and the unlocking piece has an unlocking inclined surface on the side facing the force-applying part, and the unlocking inclined surface is used to cooperate with the tongue piece in the light cage to release the lock between the optical module and the light cage, and the sliding arm and the unlocking piece are driven to slide by applying force to the force-applying part from the outside to achieve unlocking.

[0007] In one embodiment of the present application, the unlocking member includes a tapered column, and a portion of the tapered surface of the tapered column facing the force-applying portion is an unlocking inclined surface.

[0008] In one embodiment of the present application, the sliding arm has a target surface, the target surface faces away from the other sliding arm, and the angle between the unlocking inclined surface and the target surface is 45°±5°.

[0009] In one embodiment of the present application, an embedding hole is provided at the end of the sliding arm, and the unlocking member is embedded in the embedding hole in the form of an insert.

[0010] In one embodiment of the present application, the pull ring body further includes: a force-applying portion, and each sliding arm is connected to the force-applying portion; wherein the embedding hole is located at the end of the sliding arm away from the force-applying portion.

[0011] In one embodiment of the present application, the sliding arm includes: a connecting section, connected to another sliding arm; a transition section, one end of the transition section is connected to the end of the connecting section, and the transition section is inclined from the end of the connecting section toward the other opposite sliding arm; an unlocking section, connected to the other end of the transition section; wherein the embedding hole is located at the end of the unlocking section away from the transition section.

[0012] In one embodiment of the present application, the surface of the unlocking segment facing away from the other opposite sliding arm is the target surface; the unlocking member has a target end away from the other opposite sliding arm; wherein the height of the target end protruding from the target surface is 0.5mm to 0.6mm.

[0013] In one embodiment of the present application, the unlocking member includes: a connecting portion embedded in the embedding hole; and a tapered column connected to the connecting portion, the tapered column protruding from the sliding arm to release the lock between the optical module and the optical cage.

[0014] In one embodiment of the present application, the conical column has an abutment surface, which faces the side where the connecting portion is located; the sliding arm has a target surface that is opposite to the other sliding arm, and the sliding arm is provided with a mounting groove recessed in the target surface on one side of the target surface, the embedding hole is opened at the bottom of the mounting groove, and the target surface is adjacent to the outer periphery of the groove opening of the mounting groove; wherein the connecting portion is embedded in the embedding hole from one side of the target surface, and the abutment surface abuts against the bottom of the mounting groove.

[0015] In one embodiment of the present application, the unlocking member includes: a conical column for releasing the lock between the optical module and the optical cage; wherein the conical column passes through the embedding hole from one side of the sliding arm toward the other opposite sliding arm, so that at least a portion of the conical column protrudes from the side of the sliding arm facing away from the other opposite sliding arm.

[0016] Correspondingly, the present application also provides an optical module, comprising a housing and a pull ring as described in the above embodiment, wherein the housing is connected to the pull ring.

[0017] The beneficial effect of the present application is as follows: Different from the prior art, the present application provides a pull ring and an optical module. The pull ring includes a pull ring body and an unlocking piece arranged on the pull ring body. The pull ring body is used to connect the shell of the optical module. The unlocking piece is used to release the lock between the optical module and the optical cage. Among them, the unlocking piece and the pull ring body are split assembly structures, that is, the unlocking piece and the pull ring body are not integrally formed. The present application has lower requirements on the processing accuracy of the pull ring body, thereby reducing the requirements on the processing accuracy of the pull ring. In addition, the unlocking piece can be machined separately with high processing accuracy, and the height of the unlocking piece is easy to control, thereby reducing the height tolerance of the unlocking piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a structural schematic diagram of a pull ring in the prior art;

[0020] Figure 2 It is a structural schematic diagram of an embodiment of an optical module of the present application;

[0021] Figure 3 It is a structural schematic diagram of an embodiment of an optical module and an optical cage of the present application;

[0022] Figure 4 This is a schematic structural diagram of an embodiment of a pull ring of the present application;

[0023] Figure 5 yes Figure 4 The schematic diagram of the structure of the pull ring A area shown;

[0024] Figure 6 yes Figure 5 A schematic diagram of an embodiment of a cross-sectional structure of a pull ring in the BB direction is shown;

[0025] Figure 7 This is a schematic diagram of the structure of an embodiment of an unlocking element of the present application;

[0026] Figure 8 yes Figure 5 A schematic diagram of another embodiment of the cross-sectional structure of the pull ring in the BB direction;

[0027] Fig. 9 It is a structural schematic diagram of another embodiment of the pull ring of the present application;

[0028] Fig.10 yes Fig. 9 A schematic diagram of the structure of the pull ring C region shown;

[0029] Fig.11 yes Fig.10 A schematic diagram of an embodiment of a cross-sectional structure of a pull ring in the DD direction is shown;

[0030] Fig.12 yes Figure 3 A schematic diagram of a first state of the local cross-sectional structure of the optical module and the optical cage in the EE direction;

[0031] Fig.13 yes Figure 3 A schematic diagram of the second state of the local cross-sectional structure of the optical module and the optical cage in the EE direction;

[0032] Fig.14 yes Figure 3 Schematic diagram of the third state of the local cross-sectional structure of the optical module and the light cage in the EE direction.

[0033] Description of reference numerals:

[0034] 10 optical module; 11 housing; 111 first slide groove; 112 second slide groove; 20 pull ring; 21 pull ring body; 211 inlay hole; 2111 orifice; 212 connecting arm; 213 slide arm; 2131 mounting groove; 2132 groove bottom; 2133 notch; 2134 target surface; 2135 connecting section; 2136 unlocking section; 2137 transition section; 214 force-applying part; 22 unlocking member; 221 connecting part; 222 conical column; 2221 abutting surface; 223 unlocking inclined surface; 224 target end; 30 optical cage; 31 tongue. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application and are not used to limit the present application. In the present application, unless otherwise stated, the directional words used, such as "up", "down", "left", and "right", generally refer to the up, down, left, and right of the device in actual use or working state, specifically the drawing direction in the accompanying drawings.

[0036] In this application, unless otherwise clearly specified and limited, the terms "connected", "connected", "stacked" and the like should be understood in a broad sense, for example, it can be fixedly connected, detachably connected, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] The present application provides a pull ring and an optical module, which are described in detail below. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments of the present application. In the following embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0038] In order to solve the technical problems of high precision requirements and large height tolerance of the pull ring processing process of the pull ring unlocking structure in the prior art, an embodiment of the present application provides a pull ring. The pull ring includes a pull ring body and an unlocking piece. The pull ring body is used to connect the housing of the optical module, and the pull ring body includes at least two sliding arms, and the sliding arms are arranged opposite to each other. The unlocking piece is arranged at the end of the sliding arm, and the unlocking piece is used to release the lock between the optical module and the optical cage, wherein the unlocking piece and the pull ring body are a split assembly structure, and the unlocking piece protrudes from the side of the sliding arm that faces away from the other sliding arm opposite to it. It is explained in detail below.

[0039] See also Figure 1 , Figure 1 It is a structural schematic diagram of a pull ring in the prior art.

[0040] In the prior art, the end of the pull ring 40 has an unlocking structure. The unlocking structure includes a first bending structure 41 and a second bending structure 42 connected to each other, that is, the first bending structure 41 and the second bending structure 42 are formed at the end of the sliding arm of the pull ring 40 to form a depression and a protrusion to cooperate with the tongue (spring) on ​​the light cage to achieve unlocking. Since the distance between the first bending structure 41 and the second bending structure 42 is small, the requirements for the processing accuracy are high. In addition, due to process reasons such as the resilience of the first bending structure 41 and the second bending structure 42, the height tolerance of the unlocking structure is large.

[0041] See also Figure 2 and Figure 3 , Figure 2 is a structural diagram of an embodiment of an optical module of the present application, Figure 3 It is a structural schematic diagram of an embodiment of an optical module and an optical cage of the present application.

[0042] In one embodiment, the optical module 10 includes a housing 11, which is a basic carrier of the optical module 10. The housing 11 has a storage space, which is used to accommodate components such as a circuit board, an optoelectronic chip, a lens, and a light guide component of the optical module 10. The optical module 10 also includes a pull ring 20, and the housing 11 is connected to the pull ring 20. The specific connection method will be described in detail below. The optical module 10 is pluggable and matched with the optical cage 30, and the pull ring 20 is used to release the lock between the optical module 10 and the optical cage 30.

[0043] The pull ring 20 according to the embodiment of the present application is described below.

[0044] Please also read Figure 4 and Figure 5 , Figure 4 It is a schematic structural diagram of an embodiment of a pull ring of the present application. Figure 5 yes Figure 4 Schematic diagram of the structure of the pull ring A area shown.

[0045] In one embodiment, the pull ring 20 includes a pull ring body 21, and the pull ring body 21 is used to connect the housing 11 of the optical module 10. The pull ring 20 also includes an unlocking member 22. The unlocking member 22 is disposed on the pull ring body 21, and the unlocking member 22 is used to release the lock between the optical module 10 and the optical cage 30.

[0046] Specifically, the pull ring body 21 includes a force-applying portion 214, a connecting arm 212, and at least two sliding arms 213. The sliding arms 213 are spaced apart from each other, and specifically, the sliding arms 213 are spaced apart from each other along a preset direction (such as Figure 4 The two sliding arms 213 are arranged in sequence (as shown by the arrow X in the middle, the same below). Adjacent sliding arms 213 are connected by force-applying portions 214 and connecting arms 212. The force-applying portions 214 and connecting arms 212 are arranged near one end of the sliding arms 213. The unlocking member 22 is arranged at the end of the sliding arm 213 away from the force-applying portion 214 and connecting arms 212, and the unlocking member 22 protrudes from the side of the sliding arm 213 facing away from the other sliding arm 213 opposite to it. Figure 4 The example shows that the pull ring body 21 includes two sliding arms 213, the two sliding arms 213 are spaced apart from each other, and the two sliding arms 213 are connected by a force-applying portion 214 and a connecting arm 212. The sliding arms 213 and the unlocking member 22 are driven to slide by applying force to the force-applying portion 214 to achieve unlocking. Of course, in other embodiments of the present application, the pull ring body 21 can omit the connecting arm 212, which is not limited here.

[0047] Furthermore, the slide arm 213 includes a connecting section 2135, an unlocking section 2136 and a transition section 2137. The connecting section 2135 is connected to another slide arm 213, specifically, the connecting section 2135 is connected to another opposite slide arm 213 through the force applying portion 214. One end of the transition section 2137 is connected to the end of the connecting section 2135, and the transition section 2137 is inclined from the end of the connecting section 2135 toward another opposite slide arm 213. The unlocking section 2136 is connected to the other end of the transition section 2137. The unlocking member 22 is disposed at the end of the unlocking section 2136 away from the transition section 2137.

[0048] It should be noted that the unlocking member 22 and the pull ring body 21 of this embodiment are a separate assembly structure, that is, the unlocking member 22 and the pull ring body 21 are not integrally formed, and the unlocking member 22 and the pull ring body 21 are machined separately and then assembled together. This embodiment has a lower requirement for the processing accuracy of the pull ring body 21, thereby reducing the requirement for the processing accuracy of the pull ring 20. In addition, the unlocking member 22 can be machined separately with high processing accuracy, and the height of the unlocking member 22 is easy to control, thereby reducing the height tolerance of the unlocking member 22. Among them, the height of the unlocking member 22 should be understood as the length of the unlocking member 22 in the preset direction.

[0049] In the optical module 10, the outer side walls of the housing 11 on both sides in the preset direction are respectively provided with a first slide groove 111 and a second slide groove 112, and the first slide groove 111 and the second slide groove 112 are connected to each other. Each slide arm 213 slides and cooperates with the first slide groove 111 and the second slide groove 112 on the corresponding side of the housing 11. When the pull ring 20 is locked with the optical cage 30, the first slide groove 111 is used to accommodate the slide arm 213, and the second slide groove 112 is used to accommodate the unlocking member 22. The tongue 31 in the optical cage 30 is clamped on the groove wall of the first slide groove 111 adjacent to the second slide groove 112. It is precisely because the height of the unlocking member 22 in this embodiment is easy to control that the overall width of the optical module 10 including the pull ring 20 is easier to control within the range specified by the industry standard. When releasing the lock between the pull ring 20 and the light cage 30, force is applied to the force applying part 214 from the outside, usually by holding the force applying part 214 to pull the pull ring 20 backward to drive the sliding arm 213 to slide, so that the unlocking member 22 slides out of the second sliding groove 112 to the first sliding groove 111, and the unlocking member 22 lifts the tongue 31 of the light cage 30 to achieve unlocking.

[0050] In one embodiment, the unlocking member 22 has an unlocking inclined surface 223 on one side facing the force applying portion 214, and the unlocking inclined surface 223 is used to cooperate with the tongue piece 31 in the light cage 30 to release the lock between the optical module 10 and the light cage 30. Specifically, the sliding arm 213 has a target surface 2134, and the target surface 2134 faces away from the other sliding arm 213, and specifically, the surface of the unlocking section 2136 facing away from the other opposite sliding arm 213 is the target surface 2134. The unlocking inclined surface 223 faces the force applying portion 214 and faces away from the target surface 2134 of the sliding arm 213.

[0051] When the optical module 10 is inserted into the optical cage 30, the tongue piece 31 in the optical cage 30 is engaged with the housing 11 of the optical module 10 to prevent the optical module 10 from being removed from the optical cage 30. In the process of pulling out the optical module 10, the optical module 10 moves backward, and the unlocking inclined surface 223 of the unlocking member 22 drives the tongue piece 31 of the optical cage 30 to be separated from the housing 11 of the optical module 10, thereby allowing the optical module 10 to move further backward and be removed from the optical cage 30. The unlocking inclined surface 223 guides the movement of the tongue piece 31 of the optical cage 30, so that the unlocking action between the pull ring 20 and the optical cage 30 is smoother, which is conducive to the smooth removal of the optical module 10 from the optical cage 30, avoiding the problem that the optical module 10 cannot be removed.

[0052] Furthermore, the unlocking member 22 includes a tapered column 222. The outer circumference of the tapered column 222 is a tapered surface, and the portion of the tapered surface of the tapered column 222 facing the force-applying portion 214 is an unlocking inclined surface 223, that is, the tapered column 222 is used to release the lock between the optical module 10 and the optical cage 30. In this way, the outer circumference of the tapered column 222 is a regular tapered surface, and the unlocking inclined surface 223 can be easily machined on the outer circumference of the tapered column 222.

[0053] Of course, in other embodiments of the present application, the outer peripheral surface of the tapered column 222 is not limited to a tapered surface, and the unlocking slope 223 may also be an inclined flat surface, etc., which is not limited here.

[0054] Furthermore, the angle θ between the unlocking slope 223 and the target surface 2134 is 45°±5°. Figure 5 As shown. In this way, the embodiment reasonably sets the inclination angle of the unlocking slope 223, which can ensure that the unlocking slope 223 drives the tongue 31 of the optical cage 30 to separate from the housing 11 of the optical module 10, and can also ensure the smoothness of the process of pulling the optical module 10 out of the optical cage 30.

[0055] In one embodiment, the unlocking member 22 has a target end 224 away from the other opposite sliding arm 213. The distance H between the target surface 2134 on the sliding arm 213 and the target end 224 can be 0.5 mm to 0.6 mm, and specifically, the height H of the target end 224 protruding from the target surface 2134 in the preset direction can be 0.5 mm to 0.6 mm, for example, 0.5 mm, 0.52 mm, 0.54 mm, 0.56 mm, 0.58 mm, 0.6 mm, etc. Figure 5 shown.

[0056] In the above manner, this embodiment can ensure that the unlocking slope 223 drives the tongue 31 of the light cage 30 to separate from the housing 11 of the light module 10, and can also ensure the smoothness of the process of pulling the light module 10 out of the light cage 30 by reasonably setting the distance between the target surface 2134 and the target end 224, that is, reasonably setting the height of the unlocking member 22.

[0057] Please also read Figure 6 , Figure 6 yes Figure 5 The diagram is a schematic diagram of an embodiment of a cross-sectional structure of a pull ring in the BB direction.

[0058] In one embodiment, the unlocking member 22 is provided in the form of an insert on the pull ring body 21. Specifically, an insert hole 211 is provided at the end of the sliding arm 213, and the unlocking member 22 is embedded in the insert hole 211 in the form of an insert. The insert hole 211 is located at the end of the sliding arm 213 away from the force-applying portion 214, specifically, the insert hole 211 is located at the end of the unlocking section 2136 away from the connecting section 2135. The unlocking member 22 is embedded in the insert hole 211 at the end of the unlocking section 2136.

[0059] For the example in which the pull ring body 21 includes two slide arms 213, an inlay hole 211 is provided at the end of each slide arm 213 away from the force-applying portion 214. The number of unlocking members 22 corresponds to the number of slide arms 213, and the inlay hole 211 of each slide arm 213 is inlaid with a different unlocking member 22. The unlocking members 22 on each slide arm 213 cooperate to release the lock between the optical module 10 and the optical cage 30. In the processing technology of the pull ring 20, an inlay hole 211 is reserved on the slide arm 213, and the unlocking member 22 can be inlaid in the inlay hole 211 on the slide arm 213 by welding or interference fit, so that the unlocking member 22 is reliably installed on the slide arm 213.

[0060] Please also read Figure 7 , Figure 7 It is a structural diagram of an embodiment of an unlocking member of the present application.

[0061] In one embodiment, the unlocking member 22 further includes a connecting portion 221. The connecting portion 221 is connected to a conical column 222, and the conical column 222 is connected to the sliding arm 213 through the connecting portion 221. The conical column 222 protrudes from the sliding arm 213 to release the lock between the optical module 10 and the optical cage 30. Specifically, the connecting portion 221 is embedded in the embedding hole 211.

[0062] Furthermore, the conical column 222 has an abutting surface 2221, and the abutting surface 2221 faces the side where the connecting portion 221 is located. Specifically, the conical column 222 and the connecting portion 221 both have a cross section perpendicular to the central axis of the unlocking member 22, and the cross-sectional area of ​​the end of the conical column 222 adjacent to the connecting portion 221 is larger than the cross-sectional area of ​​the connecting portion 221, so that the conical column 222 has the abutting surface 2221. When the unlocking member 22 is embedded in the embedding hole 211, the abutting surface 2221 abuts against the surface of the sliding arm 213 to limit the relative position of the unlocking member 22 and the sliding arm 213, and ensure that the unlocking member 22 is installed in place.

[0063] Please also read Figure 8 , Figure 8 yes Figure 5 A schematic diagram of another embodiment of the cross-sectional structure of the pull ring in the BB direction is shown.

[0064] In an alternative embodiment, the slide arm 213 is provided with a mounting groove 2131 recessed in the target surface 2134 on one side of the target surface 2134, and the embedding hole 211 is opened at the groove bottom 2132 of the mounting groove 2131. The embedding hole 211 and the mounting groove 2131 are connected to each other, and the orifice of the embedding hole 211 is located at the groove bottom 2132 of the mounting groove 2131. The target surface 2134 is adjacent to the outer periphery of the groove opening 2133 of the mounting groove 2131.

[0065] The connecting portion 221 of the unlocking member 22 is embedded in the embedding hole 211 from one side of the target surface 2134. The unlocking member 22 is embedded in the embedding hole 211 in the direction as shown in FIG. Figure 8 As shown by the dashed arrow, the connecting portion 221 is inserted into the mounting hole 211 through the mounting groove 2131 ; the conical column 222 is inserted into the mounting groove 2131 , and the abutting surface 2221 abuts against the groove bottom 2132 of the mounting groove 2131 , so that the abutting surface 2221 is close to the other sliding arm 213 relative to the target surface 2134 .

[0066] In the above manner, the abutting surface 2221 of the unlocking member 22 of the present embodiment is close to the other sliding arm 213 relative to the target surface 2134, which can reduce the risk of interference between the gap between the abutting surface 2221 and the sliding arm 213 and the tongue 31 of the optical cage 30, thereby avoiding as much as possible the problem of the optical module 10 getting stuck or even being unable to be pulled out during the removal process.

[0067] Please also read Figures 9 to 11 , Fig. 9is a schematic structural diagram of another embodiment of the pull ring of the present application, Fig.10 yes Fig. 9 The schematic diagram of the structure of the pull ring C area is shown. Fig.11 yes Fig.10 A schematic diagram of an embodiment of a cross-sectional structure of a pull ring in the DD direction is shown.

[0068] In another alternative embodiment, the unlocking member 22 is inserted into the embedding hole 211 from the side of the corresponding sliding arm 213 toward the opposite sliding arm 213. The direction in which the unlocking member 22 is inserted into the embedding hole 211 is as follows: Fig.11 As shown by the dashed arrow. Specifically, the embedding hole 211 is a conical hole that matches the conical column 222 of the unlocking member 22, and the larger hole in the conical hole faces the other sliding arm 213. The conical column 222 passes through the embedding hole 211 from the side of the sliding arm 213 corresponding to it toward the other sliding arm 213, so that at least a portion of the conical column 222 is protruded on the side of the sliding arm 213 facing away from the other sliding arm 213 opposite to it. This at least portion of the conical column 222 is used to release the lock between the optical module 10 and the optical cage 30, that is, the unlocking inclined surface 223 mentioned above is located at this at least portion of the conical column 222. In this way, this embodiment can avoid the interference between the gap between the conical column 222 and the sliding arm 213 and the tongue 31 of the optical cage 30, thereby avoiding the problem that the optical module 10 is stuck or even cannot be pulled out during the removal process.

[0069] The following describes the process of pulling out the optical module 10 from the optical cage 30 according to the embodiment of the present application.

[0070] like Fig.12 As shown, when the optical module 10 is inserted into the optical cage 30, the optical module 10 and the optical cage 30 are in a locked state. At this time, the tongue 31 in the optical cage 30 is engaged with the housing 11 of the optical module 10 to prevent the optical module 10 from escaping from the optical cage 30. Fig.13 As shown, when the optical module 10 needs to be pulled out, the pull ring 20 is pulled backward (the moving direction of the pull ring 20 is as shown in FIG. Fig.13 As shown by the dotted arrow in the middle, the optical module 10 is pulled out, and the tongue piece 31 slides along the unlocking inclined surface 223 of the unlocking member 22, so that the tongue piece 31 is separated from the housing 11 of the optical module 10, and the unlocking member 22 lifts the tongue piece 31. Fig.14 As shown, the pull ring 20 is then pulled back (the pull ring 20 moves in the direction shown in FIG. Fig.14 As shown by the dashed arrow in the middle, the tongue piece 31 is completely separated from the housing 11 of the optical module 10 and the unlocking inclined surface 223 of the unlocking member 22, and the optical module 10 and the optical cage 30 are unlocked, thereby allowing the optical module 10 to be pulled out of the optical cage 30.

[0071] In summary, the present application provides a pull ring and an optical module. The pull ring includes a pull ring body and an unlocking piece arranged on the pull ring body. The pull ring body is used to connect the housing of the optical module. The unlocking piece is used to release the lock between the optical module and the optical cage. Among them, the unlocking piece and the pull ring body are split assembly structures, that is, the unlocking piece and the pull ring body are not integrally formed. The present application has lower requirements on the processing accuracy of the pull ring body, thereby reducing the requirements on the processing accuracy of the pull ring. In addition, the unlocking piece can be machined separately with high processing accuracy, and the height of the unlocking piece is easy to control, thereby reducing the height tolerance of the unlocking piece.

[0072] The pull ring and the optical module provided by the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application; at the same time, for general technicians in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as limiting the present application.

Claims

1. A pull ring, characterized in that: include: A pull ring body, used to connect the housing of the optical module, the pull ring body includes at least two sliding arms, and the sliding arms are arranged opposite to each other; as well as An unlocking member is arranged at the end of the sliding arm, and is used to release the lock between the optical module and the optical cage, wherein the unlocking member and the pull ring body are a separate assembly structure, and the unlocking member protrudes from the side of the sliding arm that is opposite to the other sliding arm.

2. The pull ring according to claim 1, characterized in that: The pull ring body also includes: A force applying portion, each of the sliding arms is connected to the force applying portion; Among them, the unlocking piece is arranged at the end of the sliding arm away from the force-applying part, and the unlocking piece has an unlocking inclined surface on the side facing the force-applying part, and the unlocking inclined surface is used to cooperate with the tongue in the light cage to release the lock between the light module and the light cage, and the sliding arm and the unlocking piece are driven to slide by applying force to the force-applying part from the outside to achieve unlocking.

3. The pull ring according to claim 2, characterized in that: The unlocking member comprises a conical column, and a portion of the conical surface of the conical column facing the force-applying portion is the unlocking inclined surface.

4. The pull ring according to claim 2, characterized in that: The slide arm has a target surface, the target surface faces away from the other slide arm, and the angle between the unlocking slope and the target surface is 45°±5°.

5. The pull ring according to claim 1, characterized in that: An embedding hole is formed at the end of the sliding arm, and the unlocking piece is embedded in the embedding hole in the form of an embedding piece.

6. The pull ring according to claim 5, characterized in that: The pull ring body also includes: A force applying portion, each of the sliding arms is connected to the force applying portion; Wherein, the embedding hole is located at the end of the sliding arm away from the force applying part.

7. The pull ring according to claim 5, characterized in that: The sliding arm comprises: A connecting section connected to the other sliding arm; A transition section, one end of which is connected to the end of the connecting section, and the transition section is inclined from the end of the connecting section toward the other opposite sliding arm; An unlocking section connected to the other end of the transition section; Wherein, the embedding hole is located at the end of the unlocking section away from the transition section.

8. The pull ring according to claim 7, characterized in that: The surface of the unlocking section facing away from the other opposite sliding arm is a target surface; the unlocking member has a target end away from the other opposite sliding arm; Wherein, the height of the target end protruding from the target surface is 0.5 mm to 0.6 mm.

9. The pull ring according to claim 5, characterized in that: The unlocking member comprises: A connecting portion, embedded in the embedding hole; and A conical column is connected to the connecting portion, and the conical column protrudes from the sliding arm to release the lock between the optical module and the optical cage.

10. The pull ring according to claim 9, characterized in that: The conical column has an abutment surface, and the abutment surface faces the side where the connecting portion is located; The slide arm has a target surface facing away from the other slide arm, the slide arm is provided with a mounting groove sunken into the target surface on one side of the target surface, the embedding hole is opened at the bottom of the mounting groove, and the target surface is adjacent to the outer periphery of the notch of the mounting groove; Wherein, the connecting portion is embedded into the embedding hole from one side of the target surface, and the abutting surface abuts against the bottom of the installation groove.

11. The pull ring according to claim 5, characterized in that: The unlocking member comprises: A conical column, used to release the lock between the optical module and the optical cage; The conical column passes through the embedding hole from one side of the sliding arm toward the other opposite sliding arm, so that at least a portion of the conical column is protruded from the side of the sliding arm facing away from the other opposite sliding arm.

12. An optical module, characterized in that: The invention comprises a housing and the pull ring according to any one of claims 1 to 11, wherein the housing is connected to the pull ring.

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