Sealed case

Abstract

The utility model provides a sealed case, which is characterized in that an upper top plate and a lower bottom plate of the case are provided with air ducts, and the whole frame of the case and the air ducts are formed by welding connection; the fan is arranged at the top of the case, a plurality of pairs of slots are formed in an upper top plate and a lower bottom plate in the case, a connector is arranged on each pair of slots, the connectors are fixed in the slots through wedge-shaped locking devices, and heat of the connectors is transmitted to the air duct plate through the heat dissipation plate and then is taken away in a forced air cooling convection mode; the air flow only circulates in the air channel and is not directly contacted with electronic components on the connector, so that the inside of the case is completely isolated from the outside; sealing rings are arranged at the matching positions of the front panel and the rear panel and the welding box body, so that a totally-closed case form is formed. Under the conditions that the external environment is severe and the space size and the weight are limited, the high-power-consumption electronic equipment case can be designed through the configuration.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation, in particular to a sealed case in the field of electronic equipment. Background Art

[0002] Sealed chassis are widely used in various harsh environments such as deserts and oceans. The electronic equipment in the chassis often needs to work uninterruptedly, and high reliability requirements are placed on the electronic components. In order to enable them to work normally in various harsh environments, the electronic components need to be protected, so a sealed design is adopted for the chassis.

[0003] As a carrier of equipment, the chassis needs to be designed to be lightweight for installation and transportation considerations. The interior of the chassis is composed of multiple connectors, and various high-power electronic components are arranged inside the connectors, which generate a lot of heat. This brings about the problem of heat dissipation of electronic components in a sealed environment. The heat dissipation effect of the heat-generating components directly affects the performance and service life of the equipment. Therefore, the chassis must be reasonably designed for heat dissipation to meet the requirements of use in harsh environments. Utility Model Content

[0004] The purpose of the utility model is to provide a sealed case to solve the problems existing in the prior art.

[0005] In order to solve the above technical problems, the technical solution of the utility model is as follows: providing a sealed case, the upper top plate and the lower bottom plate of the case are provided with air ducts, the overall frame and the air duct of the case are both formed by welding connection; the fan is installed on the top of the case, a plurality of pairs of slots are arranged at the upper top plate and the lower bottom plate inside the case, a connector is installed on each pair of slots, the connector is fixed in the slot by a wedge-shaped locking device, the heat of the connector is transferred to the air duct plate through the heat sink, and then the heat is taken away by forced air cooling convection; the air flow only circulates in the air duct, and does not directly contact the electronic components on the connector, so that the inside of the case is completely isolated from the outside;

[0006] Sealing rings are provided at the joints between the front and rear panels and the welded box body, thereby forming a fully enclosed chassis.

[0007] Furthermore, the sealing ring is a double-peak conductive sealing ring.

[0008] The beneficial effects achieved by the sealed case provided by the utility model are:

[0009] In the case of harsh external environment, limited space size and weight, this configuration can be used to design a high-power electronic equipment chassis. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The utility model is further described below in conjunction with the accompanying drawings:

[0011] Figure 1Design a schematic for the chassis;

[0012] Figure 2 Schematic diagram of heat transfer between connector and air duct. DETAILED DESCRIPTION

[0013] The sealed chassis proposed by the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the utility model will become clearer according to the following description and claims. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise ratios, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the utility model.

[0014] The utility model provides a sealed chassis, which adopts forced air cooling for heat dissipation. The overall frame and air duct are welded. Sealing ring installation grooves are designed at the joints between the front and rear panels and the welded box body. A double-peak conductive sealing ring is used for sealing, thereby forming a fully enclosed chassis.

[0015] The upper top plate and the lower bottom plate of the chassis are directly designed with air ducts. The fan is installed on the top of the chassis. Multiple pairs of slots are designed on the upper top plate and the lower bottom plate inside the chassis. A module is installed on each pair of slots. The module is fixed in the slot by a wedge-shaped locking device. The heat of the module is transferred to the air duct plate through the heat sink, and then the heat is taken away by forced air cooling convection. Each air duct can be used for the heat dissipation of two modules. The chassis structure is as follows: Figure 1 During the entire heat dissipation process, the airflow only circulates in the air duct and does not directly contact the electronic components of the module, so that the inside of the chassis is completely isolated from the outside world, achieving a fully enclosed space, thereby achieving dust and corrosion resistance requirements.

[0016] The technical problem to be solved by the utility model is to propose a heat dissipation form of a sealed chassis. Traditional sealed chassis are usually large in size and weight, and have many restrictions on the scope of use and installation. This sealed chassis optimizes the design of the chassis and air duct, saves space and quality for the installation of electronic components, and improves the duty cycle of electronic components. At the same time, because the interior of the chassis is a closed space, the electronic components can have a better working environment.

[0017] The technical solution adopted by the utility model to solve its technical problems is: the chassis adopts forced air cooling to dissipate heat, the overall frame and air duct are welded, and sealing rings are designed at the joints between the front and rear panels and the welded box body, thereby forming a fully enclosed chassis. The upper top plate and the lower bottom plate of the chassis are directly designed with air ducts, and the fan is installed on the top of the chassis. Multiple pairs of slots are designed at the upper top plate and the lower bottom plate inside the chassis, and a connector is installed on each pair of slots. The connector is fixed in the slot by a wedge-shaped locking device. The heat of the connector is transferred to the air duct plate through the heat sink, and then the heat is taken away by forced air cooling convection. Each air duct can be used for heat dissipation of two connectors. During the entire heat dissipation process, the airflow only circulates in the air duct and does not directly contact the electronic components of the module, so that the inside of the chassis is completely isolated from the outside world, achieving a fully enclosed space, thereby achieving the purpose of protection, such as Figure 2 shown.

[0018] The utility model was verified: the chassis passed the air tightness test and passed the high temperature test of +70℃ under normal working conditions. The test results proved the feasibility of this form.

[0019] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. It is obvious to those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the utility model is defined by the attached claims rather than the above description, so it is intended to include all changes that fall within the meaning and scope of the equivalent elements of the claims in the utility model.

Claims

1. Sealed chassis, characterized in that, The upper top plate and the lower bottom plate of the chassis are provided with air ducts, and the overall frame and the air duct of the chassis are both formed by welding connection; the fan is installed on the top of the chassis, and multiple pairs of slots are provided at the upper top plate and the lower bottom plate inside the chassis, and a connector is installed on each pair of slots, and the connector is fixed in the slot by a wedge-shaped locking device, and the heat of the connector is transferred to the air duct plate through the heat sink, and then the heat is taken away by forced air cooling convection; the airflow only circulates in the air duct and does not directly contact the electronic components on the connector, so that the inside of the chassis is completely isolated from the outside world; Sealing rings are provided at the joints between the front and rear panels and the welded box body, thereby forming a fully enclosed chassis.

2. The sealed chassis according to claim 1, characterized in that: The sealing ring is a double-peak conductive sealing ring.

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