Electronic shielding box

Abstract

The utility model discloses an electronic shielding box, specifically relates to electronic shielding equipment technical field, including base, shell, radiating fin and heat pipe, base is fixed installation in the inside wall of shell, the outside wall of shell is fixed connection with radiating fin, heat pipe one end can pass through radiating fin, shell side wall and base in proper order and stretch into the chamber of shell, and the other end can pass through the casing side wall and base. The shell comprises a plurality of carbon fiber prepreg layers and a plurality of graphene layers, the carbon fiber prepreg layers and the graphene layers are fixedly laid in a staggered mode, and the outermost layer and the innermost layer of the shell are the carbon fiber prepreg layers. The box body provided by the utility model is light in weight, has a good heat dissipation effect, and can provide a good working environment and protection for electronic equipment in the equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic shielding equipment, in particular to an electronic shielding box. Background Art

[0002] Electronic shielding boxes are essential products for electronic products that require chip electronic control and calculation in aviation, ships or on the ground. The electronic shielding box, also known as the Faraday box, is a special chassis designed specifically for the electronic control box in the equipment. It is composed of metal materials and conductive coating materials. The main purpose of the electronic shielding box is to effectively shield external electromagnetic waves, process conduction and radiation, and provide an interference-free environment for the internal electronic equipment. Due to the complex use environment of the equipment, the electronic shielding box that is dustproof, waterproof and resistant to other signal sources needs to be designed as a closed box structure to meet the requirements of environmental adaptability and electromagnetic shielding. A reasonable radiator layout needs to be set inside the chassis of the electronic shielding box to ensure that the heat can be dissipated quickly and effectively. The blade structure of the radiator and the selection of thermal conductive materials are crucial to the heat dissipation effect.

[0003] The electronic shielding electronic boxes currently used are all made of an aluminum alloy or magnesium alloy shell and a large number of heat sinks. The heat dissipation effect of this structure is average, the weight is large, and the processing difficulty is high. Utility Model Content

[0004] The purpose of the utility model is to provide an electronic shielding box to solve the problems existing in the above-mentioned prior art. The box body is light in weight, has good heat dissipation effect, and can provide a good working environment and protection for electronic equipment in the device.

[0005] To achieve the above purpose, the utility model provides the following solutions:

[0006] The utility model provides an electronic shielding box, comprising a base, a shell, a heat sink and a heat pipe, wherein the base is fixedly mounted on the inner wall of the shell, the outer wall of the shell is fixedly connected to the heat sink, one end of the heat pipe can sequentially pass through the heat sink, the side wall of the shell and the base, and extend into the cavity of the shell, the shell comprises multiple layers of carbon fiber prepreg layers and multiple layers of graphene layers, the carbon fiber prepreg layers and the graphene layers are staggered and fixedly laid, and the outermost layer and the innermost layer of the shell are both the carbon fiber prepreg layers.

[0007] Preferably, the shell includes an inner shell and an outer shell, the outer shell is fixedly mounted outside the inner shell, and the inner wall of the outer shell is tightly fitted with the outer wall of the inner shell, the base is fixedly mounted on the inner wall of the inner shell, and the heat sink is fixedly connected to the outer wall of the outer shell.

[0008] Preferably, the inner shell comprises a plurality of layers of the carbon fiber prepreg layers and the graphene layers fixedly laid in an interleaved manner, and the outer shell comprises a plurality of layers of the carbon fiber prepreg layers and the graphene layers fixedly laid in an interleaved manner.

[0009] Preferably, the outer shell and the inner shell are adhesively connected by an electrically conductive adhesive.

[0010] Preferably, the base is made of aluminum alloy, and the heat sink is made of aluminum alloy.

[0011] Preferably, one end of the heat sink is embedded in the side wall of the outer shell.

[0012] Preferably, the base is provided with a heat pipe hole. After the heat pipe passes through the heat pipe hole and extends into the chamber of the housing, the gap between the heat pipe hole and the heat pipe is sealed by an electrically conductive adhesive.

[0013] Preferably, the base and the inner shell are integrally formed, and the heat sink and the outer shell are integrally formed.

[0014] The utility model has achieved the following technical effects compared with the prior art:

[0015] The utility model provides an electronic shielding box. The base in the housing can support and install various electronic plug boards and other electronic components. The housing composed of the carbon fiber prepreg layer and multiple graphene layers is connected to the heat sink, which is light in weight. The heat pipe passes through the heat sink and is inserted into the housing. Through the heat pipe and the highly thermally conductive graphene layer, the heat in the electronic shielding box can be smoothly conducted to the heat sink, having excellent heat dissipation effect, and being able to provide a good working environment and protection for the electronic devices in the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 is a schematic structural diagram of the electronic shielding box;

[0018] Figure 2 is an exploded view of the housing;

[0019] Figure 3 is a schematic structural diagram of the outer shell, the heat sink and the heat pipe;

[0020] Figure 4 is Figure 3 an enlarged view of part A in

[0021] Figure 5 Schematic diagram of the inner shell and the base.

[0022] In the figure: 1 - outer shell; 2 - inner shell; 3 - heat sink; 4 - heat pipe; 5 - base; 6 - heat pipe hole; 7 - carbon fiber prepreg layer; 8 - graphene layer. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The purpose of the utility model is to provide an electronic shielding box to solve the problems existing in the above-mentioned prior art. The box body is light in weight, has good heat dissipation effect, and can provide a good working environment and protection for electronic equipment in the device.

[0025] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] The utility model provides an electronic shielding box, such as Figure 1-2 As shown, it includes a base 5, a shell, a heat sink 3 and a heat pipe 4. The base 5 is fixedly installed on the inner wall of the shell, and the outer wall of the shell is fixedly connected to the heat sink 3. One end of the heat pipe 4 can pass through the heat sink 3, the side wall of the shell and the base 5 in sequence, and extend into the chamber of the shell. The shell includes multiple layers of carbon fiber prepreg layers 7 and multiple layers of graphene layers 8. The carbon fiber prepreg layers 7 and the graphene layers 8 are staggered and fixedly laid, and the outermost layer and the innermost layer of the shell are both carbon fiber prepreg layers 7. The base 5 in the shell can support the installation of various electronic plug-in boards and other electronic components. The layout of the electronic components and circuit boards inside the chassis is reasonably arranged, and shielding partitions and other designs are used to separate different functional blocks to reduce mutual interference. Therefore, the size and gap of the circuit boards of different electronic shielding boxes are different. According to the size and gap of one or more determined circuit boards, the size of the plug-in board base 5 (substrate) is designed. The shell is connected to the heat sink 3. The shell is formed by alternating carbon fiber prepreg layers 7 and multi-layer graphene layers 8, which can enhance the thermal conductivity of carbon fiber products. The shell is light in weight. The heat pipe 4 passes through the heat sink 3 and is inserted into the shell. The heat in the electronic shielding box can be smoothly conducted to the heat sink 3 through the heat pipe 4 and the high thermal conductivity graphene layer 8. It has excellent heat dissipation effect and can provide a good working environment and protection for the electronic equipment in the device.

[0027] In a further preferred embodiment of the present utility model, as Figure 3 shown, the housing includes an inner housing 2 and an outer housing 1. The outer housing 1 is fixedly sleeved outside the inner housing 2, and the inner side wall of the outer housing 1 is closely attached to the outer side wall of the inner housing 2. The base 5 is fixedly installed on the inner side wall of the inner housing 2, and the heat sink 3 is fixedly connected to the outer side wall of the outer housing 1.

[0028] In a further preferred embodiment of the present utility model, the inner housing 2 includes multiple layers of carbon fiber prepreg layers 7 and graphene layers 8 fixedly laid in an interleaved manner, and the outer housing 1 includes multiple layers of carbon fiber prepreg layers 7 and graphene layers 8 fixedly laid in an interleaved manner.

[0029] In a further preferred embodiment of the present utility model, the outer housing 1 and the inner housing 2 are adhesively connected by an electrically conductive adhesive.

[0030] In a further preferred embodiment of the present utility model, the base 5 is made of aluminum alloy, and the heat sink 3 is made of aluminum alloy. Aluminum alloy has a good heat conduction effect, and an electronic shielding box composed of a housing combined with aluminum alloy, carbon fiber prepreg layers 7 and graphene layers 8 is light in weight and good in heat dissipation effect.

[0031] In a further preferred embodiment of the present utility model, as Figure 4 shown, one end of the heat sink 3 is buried in the side wall of the outer housing 1. This improves the firmness of the heat sink 3 and the outer housing 1.

[0032] In a further preferred embodiment of the present utility model, as Figure 5 shown, the base 5 is provided with a heat pipe hole 6. After the heat pipe 4 passes through the heat pipe hole 6 and extends into the chamber of the housing, the gap between the heat pipe hole 6 and the heat pipe 4 is sealed with an electrically conductive adhesive to ensure the sealing performance of the chassis. A reasonable sealing design can prevent heat leakage and improve the heat dissipation effect.

[0033] In a further preferred embodiment of the present utility model, the base 5 and the inner housing 2 are integrally formed, and the heat sink 3 and the outer housing 1 are integrally formed. The base 5 and the inner housing 2 are fixedly formed into one body by a punch, and the heat sink 3 and the outer housing 1 are solidified into one body by a die process. Before solidification, the heat pipe 4 should pass through the heat sink 3 and the outer housing 1, and the length of the heat pipe 4 inserted into the outer housing 1 can penetrate the base 5 installed in the inner housing 2.

[0034] Specific examples are applied in the present utility model to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. An electronic shielding box, characterized in that: The invention comprises a base, a shell, a heat sink and a heat pipe, wherein the base is fixedly mounted on the inner wall of the shell, the outer wall of the shell is fixedly connected to the heat sink, one end of the heat pipe can sequentially pass through the heat sink, the side wall of the shell and the base, and extend into the cavity of the shell, the shell comprises multiple layers of carbon fiber prepreg layers and multiple layers of graphene layers, the carbon fiber prepreg layers and the graphene layers are staggered and fixedly laid, and the outermost layer and the innermost layer of the shell are both the carbon fiber prepreg layers.

2. The electronic shielding box according to claim 1, characterized in that: The shell comprises an inner shell and an outer shell, the outer shell is fixedly sleeved outside the inner shell, and the inner wall of the outer shell is tightly fitted with the outer wall of the inner shell, the base is fixedly installed on the inner wall of the inner shell, and the heat sink is fixedly connected to the outer wall of the outer shell.

3. The electronic shielding box according to claim 2, characterized in that: The inner shell includes multiple layers of the carbon fiber prepreg layers and the graphene layers that are staggered and fixedly laid, and the outer shell includes multiple layers of the carbon fiber prepreg layers and the graphene layers that are staggered and fixedly laid.

4. The electronic shielding box according to claim 2, characterized in that: The outer shell and the inner shell are bonded and connected by conductive adhesive.

5. The electronic shielding box according to claim 1, characterized in that: The base is made of aluminum alloy, and the heat sink is made of aluminum alloy.

6. The electronic shielding box according to claim 2, characterized in that: One end of the heat sink is buried in the side wall of the shell.

7. The electronic shielding box according to claim 1, characterized in that: The base is provided with a heat pipe hole. After the heat pipe passes through the heat pipe hole and extends into the cavity of the shell, a gap between the heat pipe hole and the heat pipe is sealed by conductive glue.

8. The electronic shielding box according to claim 2, characterized in that: The base and the inner shell are integrally formed, and the heat sink and the outer shell are integrally formed.

Images