CN219676339U - Optical module and optical conduction assembly - Google Patents

Abstract

The embodiment of the utility model provides an optical module, which comprises a metal shell, an optical device, a clamping seat and a shielding sheet, wherein an installation cavity is formed in the metal shell, the metal shell is provided with a clamping groove, an opening of the clamping groove faces the installation cavity and is communicated with the installation cavity, the outer wall of the optical device is provided with an installation part, the optical module is positioned in the installation cavity, the installation part is embedded into the clamping groove, and the clamping seat is arranged in the clamping groove and is used for fixing the installation part; the shielding sheet is arranged in the clamping groove and positioned between the clamping seat and the metal shell so as to shield a gap between the clamping seat and the optical device. The gap between the optical device and the clamping seat is shielded by the shielding sheet, so that external electromagnetic waves can be effectively prevented from entering the optical module from the gap. And the insulating devices such as the insulating elastic piece can effectively prevent electromagnetic waves and external current from being directly electrically conducted into the optical device through the shielding sheet, so that the shielding effect of the shielding sheet and the metal shell is improved. In addition, the embodiment of the utility model also provides a light conduction component.

Description

Optical module and optical conduction assembly

Technical Field

The utility model relates to the technical field of optical modules, in particular to an optical module and an optical conduction assembly.

Background

With the development of data transmission technology, optical signal transmission technology has characteristics of fast transmission rate, low transmission loss, etc., so that a large number of users tend to transmit data information using optical signals. However, most of the devices today cannot directly use optical signals, and an optical module is usually arranged at an interface of the device to convert an electrical signal into an optical signal so as to transmit data and convert the optical signal into the electrical signal so as to receive the data, so that the transmission advantage of the optical signal is utilized and the adaptability of the electrical signal is high.

Most devices generate electromagnetic waves, which cause electromagnetic interference to surrounding devices to affect normal operation. Electromagnetic interference is especially fatal to data transmission devices, and serious causes data transmission disorders.

Disclosure of Invention

The embodiment of the utility model provides an optical module and a light conduction assembly, which are used for at least partially improving the technical problems.

In a first aspect, an embodiment of the present utility model provides an optical module, including a metal housing, an optical device, a card holder, and a shielding sheet, where an installation cavity is formed in the metal housing, the metal housing is provided with a card slot, an opening of the card slot faces the installation cavity and is communicated with the installation cavity, an installation portion is provided on an outer wall of the optical device, the optical module is located in the installation cavity, the installation portion is embedded in the card slot, and the card holder is disposed in the card slot and is used for fixing the installation portion; the shielding sheet is arranged in the clamping groove and positioned between the clamping seat and the metal shell so as to shield a gap between the clamping seat and the optical device.

In one embodiment, the shielding sheet is a metal sheet.

In one embodiment, the shielding sheet is adapted to cover the mounting portion and is attached to the outer wall of the optical device.

In one embodiment, the socket includes a first buckle and a second buckle that cooperate with each other, the second buckle is detachably assembled to the first buckle, and the first buckle and the second buckle are sleeved outside the mounting portion.

In one embodiment, the first buckle encloses a fixed cavity, the fixed cavity has an opening, the optical device is sleeved in the fixed cavity, and the second buckle is sleeved in the optical device and seals the opening.

In one embodiment, the shielding sheet includes a mounting portion and a bending portion, the mounting portion is fixed to the second buckle, the bending portion is connected to the mounting portion and bends relative to the mounting portion, and the bending portion is embedded in the clamping groove and located between the clamping seat and the metal shell so as to cover a gap between the clamping seat and the optical device.

In one embodiment, the optical module further includes an insulating elastic member, the insulating elastic member is sleeved on the outer wall of the optical device and is adjacent to the mounting portion, and the shielding sheet abuts against the insulating elastic member.

In one embodiment, one end of the insulating elastic member abuts against the mounting portion, and the clamping seat is wrapped on the mounting portion and abuts against the insulating elastic member.

In one embodiment, the metal housing includes a first housing and a second housing, the first housing being coupled to the second housing, the mounting cavity being located between the first housing and the second housing.

In a second aspect, an embodiment of the present utility model further provides a light conduction assembly, including the light module of the first aspect.

According to the optical module and the optical conduction assembly provided by the embodiment of the utility model, the gap between the optical device and the clamping seat is shielded by the shielding sheet, so that external electromagnetic waves can be effectively prevented from entering the optical module from the gap, and normal signal conversion of the optical device is ensured. And the insulating devices such as the insulating elastic piece can effectively prevent electromagnetic waves and external current from being conducted to the optical device directly through the shielding sheet, so that the shielding effect of the shielding sheet and the metal shell is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a light conduction assembly according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of an optical module according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of an optical module at another view angle according to an embodiment of the present utility model;

fig. 4 is a schematic diagram of an application scenario of a light conduction assembly according to an embodiment of the present utility model;

fig. 5 is a schematic structural diagram of an optical module at still another view angle according to an embodiment of the present utility model.

Detailed Description

In order to make the present utility model better understood by those skilled in the art, the following description of the present utility model will be made in detail with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which a person skilled in the art would obtain without making any inventive effort, are within the scope of the utility model.

In the present utility model, the terms "mounted," "connected," "secured," and the like are to be construed broadly unless otherwise specifically indicated or defined. For example, the connection can be fixed connection, detachable connection or integral connection; can be mechanically or electrically connected; the connection may be direct, indirect, or internal, or may be surface contact only, or may be surface contact via an intermediate medium. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for understanding as a specific or particular structure. The description of the terms "some embodiments," "other embodiments," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In the present utility model, the schematic representations of the above terms are not necessarily for the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples of the present utility model and features of various embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Examples

Referring to fig. 1, a light-conducting component 1 is shown, and the light-conducting component 1 is a device for photoelectric conversion to realize signal transmission. Specifically, the light conduction assembly 1 includes a light module 10 and a light transmission medium 20. Common optical transmission media 20 include optical fibers, etc., in which optical signals can propagate with low energy loss in the optical transmission medium 20, the optical transmission medium 20 having opposite ends as a medium for transmitting optical signals from one end to the other. In order to facilitate connection and light signal emission at two ends of the light transmission medium 20, the two ends of the light transmission medium 20 are generally provided with plug-ins, and common plug-ins include LS plug-ins, SC plug-ins, and the like, and corresponding light modules 10 are also provided with corresponding LS interfaces, SC interfaces, and the like.

In this embodiment, please continue to refer to fig. 1, the optical module 10 is an optoelectronic device capable of implementing photoelectric and electro-optical conversion, on one hand, as described above, the optical module 10 is divided into an LS interface optical module and an SC interface optical module according to the interface, and on the other hand, the optical module 10 is divided into a single-mode optical module and a dual-mode optical module according to the module. The type of the optical module 10 is not limited in this embodiment, but a single-mode SC-interface optical module is taken as an example for convenience of the following description.

Common electrical equipment may generate electromagnetic waves to form electromagnetic interference during operation, and the severity of electromagnetic interference varies from device to device. Electromagnetic interference can affect the normal operation of various electrical equipment and can interfere with the normal transmission of communication data. In order to ensure smooth signal transmission in the optical conduction assembly 1, referring to fig. 2, the optical module 10 includes a metal housing 11, an optical device 12, a card seat 13 and a shielding sheet 14, a mounting cavity 111 is formed in the metal housing 11, electromagnetic waves outside the mounting cavity 111 reach the metal housing 11, and the metal housing can form metal shielding for external electromagnetic waves and the like, so as to further protect optical signal transmission or other elements of the mounting cavity 111 from normal operation and the like. Preferably, the shape of the mounting cavity 111 may be set according to the shape and size of the interface of the optical module 10, for example, when the optical module 10 adopts square interfaces such as an LS interface optical module and an SC interface optical module, the mounting cavity 111 and the housing 11 may be set to be square to adapt the interface type of the optical module 10 with a smaller volume, and the size of the mounting cavity 111 may be set to be mutually adapted according to the size of a specific interface.

In the present embodiment, referring to fig. 2, the metal housing 11 includes a first housing 113 and a second housing 114, and the first housing 113 is connected to the second housing 114. In one embodiment, there may be cooperating snaps between the first housing 113 and the second housing 114, opposing sockets between the two, etc. to achieve a connection between the two. The mounting chamber 111 is located between the areas enclosed by the first housing 113 and the second housing 114. In one embodiment, the components to be mounted in the mounting cavity 111 may be first disposed and fixed to one of the first housing 113 and the second housing 114, and then the remaining one is disposed corresponding to the other and connected together by a snap to achieve complete assembly of the components in the metal housing 11.

In one embodiment, the optical device 12 is divided into a transmitting end and a receiving end according to different functions, the transmitting end converts an electrical signal with a certain code rate into a corresponding optical signal by using an internal semiconductor Laser (LD) or a light emitting diode (Light Emitting Diode, LED), and the receiving end converts an optical signal with a certain code rate into a corresponding electrical signal by using a photo detection diode and a preamplifier. In contrast, the optical module 10 using the optical device 12 at the transmitting end is an optical transmitting module, and the optical module 10 using the optical device 12 at the receiving end is an optical receiving module. The optical device 12 further includes an integrated transceiver optical module, which can realize the mutual conversion between the optical signal and the electrical signal, but this embodiment is not limited, and for convenience of subsequent description, the integrated transceiver optical module is described as an example.

Referring to fig. 2 and 3, the optical device 12 is disposed in the mounting cavity 111, and the optical device 12 cannot be directly connected to the metal housing 11 due to anti-electromagnetic interference or insulation, so that the optical device 12 is easy to fall off. The metal housing 11 is provided with a clamping groove 112, the shape of the clamping groove 112 is set according to the shape of the optical device 12 or the mounting cavity 111, and the clamping groove 112 can be a circular clamping groove, a square clamping groove, or the like. The opening 1121 of the clamping groove 112 faces the mounting cavity 111 and communicates with the mounting cavity 111, the outer wall of the optical device 12 is provided with a fixing portion 121, and the fixing portion 121 on the outer wall of the optical device 12 is embedded in the clamping groove 112. The clamping seat 13 is disposed in the clamping groove 112 and is used for fixing the fixing portion 121. The shape and size of the clamping seat 13 may be set according to the shape and size of the clamping groove 112 or the fixing portion 121, for example, a cylindrical cavity is formed in the clamping groove 112, and the external dimension of the clamping seat 13 may be a corresponding circular ring to complete the adaptation between the two.

In one embodiment, the card holder 13 includes a first buckle 131 and a second buckle 132 that are matched with each other, the second buckle 132 is detachably assembled on the first buckle 131, the first buckle 131 and the second buckle 132 are oppositely arranged, and the first buckle 131 and the second buckle 132 are sleeved outside the fixing portion 121 to fix the fixing portion 121. For example, the first buckle 131 is sleeved on a part of the outer edge surface of the fixing portion 121, the second buckle 132 is sleeved on the outer edge surface of the remaining portion of the fixing portion 121, and the first buckle 131 and the second buckle 132 can be assembled together to ensure that the fixing portion 121 does not displace relative to the card seat 13.

Specifically, the first buckle 131 encloses a fixing cavity 1311, the fixing cavity 1311 has an opening 1312, and the optical device 12 is sleeved in the fixing cavity 1311. For example, the optical device 12 may enter the fixing cavity 1311 from the opening 1312, and the second buckle 132 is sleeved on the optical device 12 and closes the opening 1312, so as to fix the optical device 12 to the optical device 12 by the first buckle 131 and the second buckle 132. And after the first buckle 131 and the second buckle 132 are assembled, two ends of the fixing cavity 1311 can enable one end of the optical device 12 to extend out of the clamping seat 13, so that optical connection between the plug-in unit and the optical device 12 is facilitated.

Referring to fig. 4, one end of a conventional optical module 10 is inserted into a network device 30. For example, the network device 30 is a switch, and the optical module 10 may be inserted into the switch to complete data transmission between the switches. This end of the optical module 10 is located in the network device 30 and the metal housing 11 may be used to electrically connect the network device 30 or the housing of the network device 30 interface to form an electromagnetic shield. However, the other end of the optical module 10 is still exposed to the outside, and the connector corresponding to the other end may have a certain shielding performance, but electromagnetic waves may enter the optical module 10 through a gap between the card holder 13 at the other end and the optical device 12 to cause damage. In this embodiment, referring to fig. 2 and fig. 5, the shielding plate 14 is disposed in the slot 112, and the shielding plate 14 can be disposed between the card holder 13 and the metal housing 11 to cover the gap between the card holder 13 and the optical device 12 in cooperation with the slot 112. Electromagnetic waves are prevented from entering the optical module 10 between the card holder 13 and the optical device 12, so that the optical device 12 is prevented from being interfered by the electromagnetic waves. Preferably, for better electromagnetic shielding of the shielding sheet 14, the shielding sheet 14 may be a metal sheet, and the free electrons in the metal are used to form shielding to protect the normal operation of the optical module 10.

In one embodiment, the shielding sheet 14 is adapted to the card holder 13, and the shielding sheet 14 is wrapped around the fixing portion 121 and is adhered to the outer wall of the optical device 12. The shielding sheet 14 may be adapted to the shape of the card holder 13, for example, the card holder 13 may have a square sheet-shaped slot therein, and the shielding sheet 14 may be just inserted to fix the position of the shielding sheet 14. And, the size of the shielding sheet 14 can be slightly larger than the size of the slot of the clamping seat 13, so that the shielding sheet 14 and the clamping seat 13 are in interference fit, and the connection between the shielding sheet 14 and the clamping seat 13 is more fixed. After the relative positions of the shielding sheet 14 and the clamping seat 13 are fixed, the shielding sheet 14 covers the fixing part 121 under the condition that the shielding sheet 14 is attached to the outer wall of the optical device 12, so that the gap of the optical device 12 can be shielded, and the relative positions of the optical device 12 and the clamping seat 13 can be fixed.

Specifically, referring to fig. 2 and fig. 3, the shielding sheet 14 includes an installation portion 141 and a bending portion 142, and the installation portion 141 is fixed to the second buckle 132, so as to avoid the relative displacement of the second buckle 132 and ensure the fixing effect of the card holder 13 on the optical device 12. The bending portion 142 is connected to the fixing portion 121 and is bent with respect to the mounting portion 141. The bending portion 142 and the mounting portion 141 may be perpendicular to each other, or an included angle with a certain range may be generated according to the shapes and sizes of the fixing portion 121 and the second buckle 132. The bending part 142 is embedded in the clamping groove 112 and is positioned between the clamping seat 13 and the metal shell 11 so as to cover a gap between the clamping seat 13 and the optical device 12. The bending part 142 of the shielding sheet 14 is used for forming shielding to protect the normal operation of the optical module 10, and the positioning and fixing are performed by the relative positions of the mounting part 141 and the second buckle 132, so as to realize the positioning of the shielding position.

In this embodiment, please continue to refer to fig. 2, the insulation between other components of the optical module 10 and the metal housing 11 is further improved, and the optical module 10 further includes an insulating elastic member 15, where the insulating elastic member 15 may be a material with good insulating performance and elasticity. For example, the insulating elastic member 15 may be a rubber ring, which has good elasticity and a certain insulating effect. The insulating elastic piece 15 is sleeved on the outer wall of the optical device 12 and is adjacent to the fixing portion 121, the shielding piece 14 is abutted to the insulating elastic piece 15, the fixing portion 121 can be sleeved on the outer wall surface of the insulating elastic piece 15, the insulating elastic piece 15 can avoid electric communication between the shielding piece 14 and the optical device 12, and the contractibility of the insulating elastic piece 15 can enable the insulating elastic piece to be tightly clamped on the outer wall of the optical device 12 so as to avoid the sliding of the insulating elastic piece 15.

In one embodiment, one end of the insulating elastic member 15 abuts against the fixing portion 121, and the clamping seat 13 is wrapped around the fixing portion 121 and abuts against the insulating elastic member 15. The shielding sheet 14 and the clamping seat 13 are correspondingly adapted, the insulating elastic piece 15 utilizes the clamping seat 13 to avoid relative displacement between the insulating elastic piece and the shielding sheet 14, and current can be prevented from being conducted out of the clamping seat 13, so that the normal operation of the optical device 12 can be further ensured by the edge elastic piece 15.

The working principle of the optical module 10 and the optical conduction assembly 1 provided by the embodiment of the utility model is as follows: the gap between the optical device 12 and the clamping seat 13 is shielded by the shielding sheet 14, so that external electromagnetic waves can be effectively prevented from entering the optical module 10 from the gap, and normal signal conversion of the optical device 12 is ensured. And the insulating devices such as the insulating elastic piece 15 can effectively prevent electromagnetic waves and external current from being directly electrically conducted into the optical device 12 through the shielding sheet 14, so that the shielding effect of the shielding sheet 14 and the metal shell 11 is improved.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting thereof; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and they should be included in the protection scope of the present utility model.

Claims (9)

1. An optical module, comprising:

the metal shell is internally provided with a mounting cavity, and the opening of the clamping groove faces to the mounting cavity and is communicated with the mounting cavity;

the outer wall of the optical device is provided with a fixing part, the optical module is positioned in the mounting cavity, and the fixing part is embedded into the clamping groove;

the clamping seat is arranged in the clamping groove and is used for fixing the fixing part; and

the shielding sheet is arranged in the clamping groove and positioned between the clamping seat and the metal shell so as to shield a gap between the clamping seat and the optical device;

the optical module further comprises an insulating elastic piece, the insulating elastic piece is sleeved on the outer wall of the optical device and is adjacent to the fixing part, and the shielding piece is abutted to the insulating elastic piece.

2. The light module of claim 1 wherein the shielding sheet is a metal sheet.

3. The optical module according to claim 1, wherein the shielding sheet is adapted to cover the fixing portion by the card holder and is attached to the outer wall of the optical device.

4. A light module as recited in claim 3, wherein the receptacle comprises a first clasp and a second clasp which are engaged with each other, the second clasp being detachably engaged with the first clasp, the first clasp and the second clasp being disposed over the fixed portion.

5. The optical module of claim 4, wherein the first fastener encloses a fixed cavity, the fixed cavity has an opening, the optical device is sleeved in the fixed cavity, and the second fastener is sleeved in the optical device and seals the opening.

6. The optical module of claim 4, wherein the shielding sheet comprises a mounting portion and a bending portion, the mounting portion is fixed to the second buckle, the bending portion is connected to the mounting portion and bends relative to the mounting portion, and the bending portion is embedded in the clamping groove and is located between the clamping seat and the metal shell so as to cover a gap between the clamping seat and the optical device.

7. The optical module according to claim 1, wherein one end of the insulating elastic member abuts against the fixing portion, and the clamping seat is wrapped on the fixing portion and abuts against the insulating elastic member.

8. The light module of claim 1 wherein the metal housing comprises a first housing and a second housing, the first housing being connected to the second housing, the mounting cavity being located between the first housing and the second housing.

9. A light conduction assembly, comprising:

the optical module of any one of claims 1-8.