Optical module with good heat dissipation effect and AEC active cable

Abstract

The utility model discloses an optical module with a good heat dissipation effect and an AEC active cable. The optical module and the AEC active cable comprise an optical module and a cable assembly. The optical module comprises an optical module body, a PCB assembly and a cooling fan, the optical module body at least comprises a back shell and an outer shell, and the outer shell is arranged on the back shell to define a containing space; a heat dissipation part and an installation position are arranged on the shell; the heat dissipation fan is installed and positioned at the installation position, the heat dissipation fan at least comprises an air outlet, and the air outlet is used for conducting heat dissipation on the interior of the containing space and / or the heat dissipation part, so that air flow of the heat dissipation fan flows along the heat dissipation channel and / or the heat dissipation part from the air outlet to conduct heat dissipation on the optical module body. According to the optical module, the heat dissipation part can well exchange heat with external airflow, and the airflow of the heat dissipation fan dissipates heat in the accommodating space and / or the heat dissipation part under the cooperation of the heat dissipation fan, so that heat on the optical module main body is taken away in a dual heat dissipation mode, and the heat dissipation effect of the optical module main body is improved.

Description

Technical Field

[0001] This utility model relates to the field of communication technology, and in particular to an optical module with good heat dissipation and an AEC active cable. Background Technology

[0002] Optical modules are a crucial component of communication networks, primarily functioning to convert between photoelectric and electro-optical signals. With the evolution and upgrading of communication networks, the volume and transmission rate of communication data have significantly increased. Therefore, all components within a communication network need to possess high performance. As the performance of optical modules has improved, their power consumption has also increased, leading to significant heat generation.

[0003] The prior art discloses an optical module heat dissipation assembly and optical communication device, which includes at least two layers of optical modules, a heat dissipation structure, a heat exchanger, and a drive pump; the at least two layers of optical modules are stacked, with the heat dissipation direction of the bottom layer optical module facing away from the adjacent optical module on the upper layer; the heat dissipation structure is in thermal contact with one end of the bottom layer optical module in the heat dissipation direction; the heat exchanger stores refrigerant; the drive pump is connected to the heat exchanger and is used to control the circulation of the refrigerant between the heat dissipation structure and the heat exchanger; however, this optical module heat dissipation assembly and optical communication device have the following drawbacks:

[0004] 1. The heat dissipation components of optical modules that use refrigerant circulation for heat dissipation have a complex structure, requiring multiple components such as heat exchangers, drive pumps, pipelines, and sealed heat dissipation structures. It is necessary to not only accurately design the cavity, inlet and outlet of the heat dissipation structure, but also to rationally plan the connection method between the drive pump and the heat exchanger. This increases the difficulty of designing and manufacturing the entire heat dissipation system. Furthermore, the complex structure leads to an increase in the number of parts and a more complicated production process, thereby significantly increasing production costs.

[0005] 2. Refrigerant circulation heat dissipation relies on a closed circulation system to ensure the normal flow of refrigerant. In practical applications, optical communication equipment may face various environmental factors such as vibration and temperature changes. If the sealing performance of the connection between the cover and the base is poor, or if the pipe connection is loose, it is very easy to cause refrigerant leakage. Refrigerant leakage will not only greatly reduce the heat dissipation effect and affect the normal operation of the optical module, but may also cause corrosion and other damage to other electronic components in the optical communication equipment, seriously reducing the reliability and service life of the equipment.

[0006] Therefore, it is necessary to research a new technical solution to address the above problems. Utility Model Content

[0007] In view of this, the present invention addresses the deficiencies of the existing technology, and its main objective is to provide an optical module and AEC active cable with good heat dissipation performance. Through the structural design and coordination of the heat dissipation section and the cooling fan, the air outlet dissipates heat from the interior of the accommodating space and / or the heat dissipation section. This allows the airflow from the cooling fan to flow along the heat dissipation channel and / or the heat dissipation section from the air outlet, thereby dissipating heat from the optical module body. In this way, the heat dissipation section can effectively exchange heat with the external airflow, and with the cooperation of the cooling fan, the airflow from the cooling fan dissipates heat from the interior of the accommodating space and / or the heat dissipation section. This dual heat dissipation method removes heat from the optical module body, thus improving the heat dissipation effect of the optical module body.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A light module with good heat dissipation includes:

[0010] The optical module body includes at least a back shell and an outer shell, the outer shell being disposed on the back shell to form an accommodating space; the outer shell is provided with a heat dissipation part and a mounting position communicating with the accommodating space; wherein, the back shell and / or the outer shell is provided with a heat dissipation channel communicating with the accommodating space.

[0011] The PCB board assembly is installed and positioned within the mounting location;

[0012] A cooling fan is installed and positioned at the mounting location and electrically connected to the PCB board assembly. The cooling fan includes at least an air outlet for dissipating heat from the interior of the accommodating space and / or the heat dissipation part, so that the airflow of the cooling fan flows from the air outlet along the heat dissipation channel and / or the heat dissipation part to dissipate heat from the optical module body.

[0013] As a preferred embodiment, several heat dissipation units are provided extending along the length of the outer casing.

[0014] As a preferred embodiment, the air outlet is connected to the heat dissipation unit.

[0015] As a preferred embodiment, the back shell has a first end and a second end; the first end and the second end are respectively located at opposite ends of the shell along its length; the PCB board assembly includes a PCB board and a connector; the connector is electrically connected to the PCB board; the connector is disposed at the first end or the second end; at least a portion of the PCB extends beyond the first end or the second end.

[0016] As a preferred embodiment, multiple cooling fans are provided, and the multiple cooling fans are spaced apart on the heat dissipation part.

[0017] As a preferred embodiment, a pull ring is further provided at at least one of the first end and the second end.

[0018] An AEC active cable includes an optical module and a cable assembly; the optical module is any of the optical modules with good heat dissipation described above; one end of the cable assembly is connected to one end of a connector.

[0019] Compared with the prior art, this utility model has significant advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly achieves this through the structural design and cooperation of the heat dissipation unit and the cooling fan. The cooling fan includes at least an air outlet, which is used to dissipate heat from the interior of the accommodating space and / or the heat dissipation unit. The airflow from the cooling fan flows from the air outlet along the heat dissipation channel and / or the heat dissipation unit to dissipate heat from the optical module body. In this way, the heat dissipation unit can effectively exchange heat with the external airflow. With the cooperation of the cooling fan, the airflow from the cooling fan dissipates heat from the interior of the accommodating space and / or the heat dissipation unit. This dual heat dissipation method removes heat from the optical module body, which is beneficial to improving the heat dissipation effect of the optical module body. In particular, compared with the refrigerant circulation heat dissipation method, the fan and the heat dissipation unit have relatively low material costs, are easier to install, and have high stability and reliability.

[0020] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0021] Figure 1 This is a top view of an embodiment of the present utility model;

[0022] Figure 2 This is a first exploded view of an embodiment of the present utility model;

[0023] Figure 3 This is a second exploded view of an embodiment of the present utility model;

[0024] Figure 4 This is a third exploded view of an embodiment of the present utility model;

[0025] Figure 5 This is the fourth exploded view of an embodiment of the present utility model;

[0026] Figure 6 This is an application diagram of an embodiment of the present invention (cooling fan not shown).

[0027] Explanation of reference numerals in the attached diagram:

[0028] 10. Main body of optical module 11. Back shell

[0029] 12. Outer shell 13. Compartment space

[0030] 121. Heat dissipation unit; 122. Mounting position

[0031] 123, First end; 124, Second end

[0032] 125. Pull ring

[0033] 20. PCB board assembly 21. PCB board

[0034] 22. Connector

[0035] 30. Cooling fan 31. Air outlet

[0036] 40. Cable assemblies; 50. Optical modules. Detailed Implementation

[0037] Please refer to Figures 1 to 6 As shown, it illustrates the specific structure of an embodiment of the present invention.

[0038] In the description of this utility model, it should be noted that the directional terms such as "up", "down", "front", "back", "left", and "right" indicate the orientation and positional relationship based on the accompanying drawings or the orientation or positional relationship shown when wearing and using the device normally. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0039] An optical module with good heat dissipation includes an optical module body 10, a PCB board 21 assembly 20, and a cooling fan 30.

[0040] The optical module body 10 includes at least a back shell 11 and an outer shell 12. The outer shell 12 is disposed on the back shell 11 to form an accommodating space 13. The outer shell 12 is provided with a heat dissipation part 121 and a mounting position 122 communicating with the accommodating space 13. The back shell 11 and / or the outer shell 12 are provided with heat dissipation channels communicating with the accommodating space 13. Preferably, several heat dissipation parts 121 extend along the length of the outer shell 12. Alternatively, the heat dissipation parts 121 may be disposed on the side of the outer shell 12, and the appropriate arrangement can be selected according to actual needs.

[0041] Alternatively, a heat dissipation section may be provided on the back cover 11, with several heat dissipation sections extending along the length of the back cover 11, or it may be provided on the side of the back cover 11.

[0042] Alternatively, heat dissipation units 121 and cooling fans can be provided on both the back shell 11 and the outer shell 12. The appropriate configuration method can be selected according to actual needs, which will not be elaborated here.

[0043] An optical module mainly consists of a transmitting section and a receiving section. The transmitting section converts electro-optical signals, while the receiving section converts photoelectric signals. Specifically, the transmitting section receives an electrical signal of a certain bit rate, which is processed by an internal driver chip to drive a semiconductor laser or light-emitting diode to emit a modulated optical signal at a corresponding rate. It also includes an internal automatic optical power control circuit to maintain a stable output optical signal power. The receiving section receives an optical signal of a certain bit rate, which is converted into an electrical signal by a photodetector diode, then amplified by a preamplifier to output an electrical signal of the corresponding bit rate.

[0044] Preferably, the back cover 11 has a first end 123 and a second end 124; the first end 123 and the second end 124 are respectively located at both ends of the outer shell 12 along its length; preferably, at least one end of the first end 123 and the second end 124 is further provided with a pull ring 125 to facilitate subsequent disassembly. In this embodiment, the outer shell 12 can be made of conductive materials such as stainless steel or aluminum alloy, or insulating materials.

[0045] The PCB board 21 assembly 20 is installed and positioned within the mounting position 122. The PCB board 21 assembly 20 includes a PCB board 21 and a connector 22. The connector 22 is electrically connected to the PCB board 21. The connector 22 is disposed at a first end 123 or a second end 124. At least a portion of the PCB extends beyond the first end 123 or the second end 124. In this embodiment, the PCB board 21 may include components such as a driver chip, a semiconductor laser, an automatic control circuit, and a photodetector diode to achieve functions such as receiving, transmitting, and converting optical and electrical signals. In specific configurations, the PCB board 21 may be a printed circuit board or a flexible circuit board, and its main function is to support electronic components such as driver chips and establish signal connections between electronic components.

[0046] Furthermore, connector 22 can be a fiber optic interface for connecting to fiber optic cables to achieve optical signal transmission. It can also be an AEC connection port. In practical applications, the type of the first connector 22 can be adapted to meet actual needs, and no limitation is made here.

[0047] The cooling fan 30 is installed and positioned at the mounting position 122 and electrically connected to the PCB board 21 assembly 20. The cooling fan 30 includes at least an air outlet 31, which is used to dissipate heat from the interior of the accommodating space 13 and / or the heat dissipation part 121, so that the airflow of the cooling fan 30 flows from the air outlet 31 along the heat dissipation channel and / or the heat dissipation part 121 to dissipate heat from the optical module body 10.

[0048] like Figures 3 to 5As shown, this illustrates three design scenarios for the air outlet 31 of the cooling fan 30: When the air outlet 31 of the cooling fan 30 is used to dissipate heat inside the accommodating space 13, the air outlet 31 blows directly onto the accommodating space 13, allowing the heat from the accommodating space 13 to dissipate through the heat dissipation channel; when the air outlet 31 of the cooling fan 30 is used to dissipate heat from the heat dissipation unit 121, the air outlet 31 blows sideways onto the heat dissipation unit 121 on the outer casing 12, thus dissipating heat from the heat dissipation unit 121; when the air outlet 31 of the cooling fan 30 dissipates heat from both the heat dissipation unit 121 and the accommodating space 13, the lower end face and side wall of the cooling fan 30 are both provided with air outlets 31, allowing the cooling fan 30 to dissipate heat from both the accommodating space 13 and the heat dissipation unit 121 simultaneously, thereby improving the heat dissipation effect of the optical module body 10.

[0049] The cooling fan works in conjunction with the heat dissipation unit. The heat sink is in close contact with the heat-generating optical module. The heat from the optical module is conducted to the heat dissipation unit, causing its temperature to rise. The cooling fan runs, driving air to flow between the heat dissipation units. The hot air near the heat dissipation unit rises due to its high temperature and low density, and is replenished by the cold air blown out by the cooling fan. This cycle continues, and the hot air is continuously blown away from the optical module and the heat dissipation unit, so the heat is constantly carried away from the heat-generating area, achieving the purpose of heat dissipation.

[0050] It can also generate negative pressure inside the casing under the action of the cooling fan, so that the cooling airflow can flow from the housing space to the heat dissipation channel and be discharged to the outside.

[0051] Preferably, the air outlet 31 is connected to the heat dissipation part 121. Preferably, multiple cooling fans 30 are provided, and the multiple cooling fans 30 are spaced apart on the heat dissipation part 121. The design of multiple cooling fans 30 can further improve the heat dissipation effect of the optical module body 10, and the appropriate number of cooling fans 30 can be installed according to actual needs.

[0052] An AEC active cable includes an optical module 50 and a cable assembly 40; the optical module 50 is the aforementioned optical module with good heat dissipation; one end of the cable assembly 40 is connected to one end of a connector. In this embodiment, the cable assembly 40 can be an AEC cable. When the cable assembly 40 is an AEC cable, the connector of the optical module 50 is an AEC connection port, and the AEC cable is plugged into and detached from this AEC connection port.

[0053] The key design feature of this invention lies in the structural design and coordination of the heat dissipation unit and the cooling fan. The cooling fan includes at least an air outlet, which is used to dissipate heat from the interior of the accommodating space and / or the heat dissipation unit. The airflow from the cooling fan flows from the air outlet along the heat dissipation channel and / or the heat dissipation unit to dissipate heat from the optical module body. In this way, the heat dissipation unit can effectively exchange heat with the external airflow, and with the cooperation of the cooling fan, the airflow from the cooling fan dissipates heat from the interior of the accommodating space and / or the heat dissipation unit. This dual heat dissipation method removes heat from the optical module body, which is beneficial to improving the heat dissipation effect of the optical module body. In particular, compared with the refrigerant circulation heat dissipation method, the fan and the heat dissipation unit have relatively low material costs, are easier to install, and have high stability and reliability.

[0054] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. An optical module with good heat dissipation, characterized in that: The application relates to a light module with good heat dissipation effect. The light module body comprises a back shell and a shell, the shell is arranged on the back shell to form a containing space, a heat dissipation part is arranged on the shell, and a mounting position communicating with the containing space is arranged on the shell; the back shell and / or the shell is provided with a heat dissipation channel communicating with the containing space; A PCB assembly is mounted in the mounting position; A heat dissipation fan is mounted in the mounting position and electrically connected to the PCB assembly, the heat dissipation fan comprises at least an air outlet, the air outlet is used for dissipating heat from the containing space and / or the heat dissipation part, and airflow of the heat dissipation fan flows along the heat dissipation channel and / or the heat dissipation part from the air outlet to dissipate heat from the light module body.

2. The light module with good heat dissipation effect according to claim 1, characterized in that: The heat dissipation part extends along the length direction of the shell.

3. The light module with good heat dissipation effect according to claim 1 or 2, characterized in that: The air outlet communicates with the heat dissipation part.

4. The light module of claim 1, wherein: The back shell has a first end and a second end, the first end and the second end are respectively located at two ends of the length direction of the shell, the PCB assembly comprises a PCB and a connector, the connector is electrically connected to the PCB, the connector is arranged at the first end or the second end, and at least part of the PCB extends out of the first end or the second end.

5. The light module of claim 1, wherein: A plurality of heat dissipation fans are arranged on the heat dissipation part.

6. The light module of claim 4, wherein: A pull ring is arranged at at least one of the first end and the second end.

7. An AEC active cable, characterized by: The application further relates to a light module and a cable assembly, the light module is the light module with good heat dissipation effect, and one end of the cable assembly is connected to one end of the connector.

Images