Connection mode of optical module and heat dissipation mechanism

Abstract

The invention provides a connection mode of an optical module and a heat dissipation mechanism. The heat dissipation mechanism comprises a cage body; a cage radiator is externally hung above the cage body through a spring clip; an adjusting mechanism is arranged between the cage body and the cage radiator; a reset mechanism is arranged on the adjusting mechanism; when the optical module is inserted into the cage body, the optical module contacts with the adjusting mechanism and drives the adjusting mechanism to move horizontally, so that the cage radiator descends under the action of the spring clip, the bottom surface of the cage radiator contacts with the optical module; and when the optical module is pulled out of the cage body, the adjusting mechanism can reset under the action of the reset mechanism, so that the cage radiator ascends and is separated from the optical module. According to the connection mode of the invention, an existing connection mode of the optical module and the heat dissipation mechanism is improved, the processing quality requirement on the surface of the optical module is reduced, the pressure on an optical module circuit board is reduced, the heat dissipation performance is greatly improved, the optical module is not rubbed with the cage radiator when being plugged and unplugged, the operation resistance is greatly reduced, a hand feeling is obvious, and the surface of the optical module is not easy to damage.

Description

technical field [0001] The invention relates to the technical field of optical module heat dissipation, in particular to a connection method between an optical module and a heat dissipation mechanism. Background technique [0002] In the field of optical communication, there are a large number of hot-swappable optical module development agreements (MSA), including SFP / SFP28 / DSFP / QSFP / QSFP+ / QSFP28 / QSFP-DD / OSFP / XFP / CFP / CFP2 / CFP4 / CFP8 / CXP / CDFP / SNAP12, etc. In the future, MSA upgrades will still use the hot-swappable module method. In order to facilitate the replacement of hot-swappable optical modules, the single board of the customer equipment will be equipped with a cage to guide and fix the optical module. This determines that the part where the optical module is inserted into the cage cannot be designed with a heat sink, but needs to be plugged into the cage. The heat sink is used to dissipate heat for the optical module. The current heat sink is buckled above the cage w...

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Problems solved by technology

[0003] This method is widely used, but there are always the following problems: 1. During the process of plugging and unplugging the optical module, it is always under the pressure of the heat sink, resulting in friction, which not only damages the surface of the optical module, but also increases the plugging resistance; 2. The heat sink and the optical The pressure on the surface of the module cannot fully guarantee the heat transfer effect, so that high-power optical modules need to increase the flatness and roughness of the top surface to improve heat dissipation, although some optical module protocols (such as QSFP-DD and OSFP) allow heat sinks on the module , but it is only limited to the part where the cage is not inserted, and increases the processing difficulty of the optical module casing, and its size is limited by the agreement, which affects the heat dissipation effect

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