Safety housing and safety protection devices

Abstract

The present application relates to the technical field of intelligent driving car, in particular to a safety protection shell and a safety protection device. The inner cavity of the safety protection shell is used for installing a safety protection module of the intelligent driving car, and the shell wall of the safety protection shell has a sandwich middle layer, and the material of the sandwich middle layer is paper honeycomb. The safety protection device comprises the safety protection module and the safety protection shell, and the safety protection module is installed in the safety protection shell. The safety protection shell and the safety protection device provided by the present application can improve the network protection performance of the safety protection module, are beneficial to the development and popularization of the intelligent driving car, and can also achieve the effect of weight reduction.

Description

Technical Field

[0001] This invention relates to the field of intelligent driving vehicle technology, and more specifically, to a safety protective shell and a safety protective device. Background Technology

[0002] The integration of internet technology and automotive technology has promoted the development of intelligent driving vehicles. Intelligent driving vehicles rely on artificial intelligence technology to reduce driving intensity and improve safety.

[0003] However, autonomous vehicles transform the information silos of traditional cars into network nodes, bringing cybersecurity risks. Therefore, autonomous vehicles are generally equipped with security protection devices to improve network security. However, the network protection performance of existing security protection devices is poor, which restricts the development and popularization of autonomous vehicles.

[0004] In summary, overcoming the aforementioned shortcomings of existing safety protection devices is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide a security housing and security protection device to alleviate the technical problem of poor network protection performance of existing security protection devices.

[0006] The safety protection shell provided by the present invention has an inner cavity for installing a safety protection module of an intelligent driving vehicle. The shell wall of the safety protection shell has a sandwich inner layer, and the material of the sandwich inner layer is paper honeycomb.

[0007] Preferably, as one possible implementation, the shell wall further has a conductive protective outer layer, which is located on the outside of the middle layer of the sandwich, and the material of the conductive protective outer layer is carbon fiber woven fabric;

[0008] And / or, the shell wall also has an insulating inner layer, which is located inside the middle layer of the sandwich, and the insulating inner layer is made of glass fiber cloth.

[0009] Preferably, as one possible implementation, the safety protection housing has a heat dissipation groove, and a heat dissipation block is fixed in the heat dissipation groove. The heat dissipation block includes a plurality of heat dissipation columns arranged at intervals.

[0010] Preferably, as one possible implementation, the heat sink has a mounting slot, in which the centrifugal fan is installed, and the centrifugal fan is used to blow air into the area where the heat sink column is located.

[0011] Preferably, as one possible implementation, the safety housing has an antenna interface for inserting an antenna, and a sealing component is installed at the antenna interface to seal the gap between the antenna interface and the antenna.

[0012] And / or, the safety protection housing includes an upper housing, a lower housing, and a side plate, the upper housing being groove-shaped, the lower housing being plate-shaped, and the lower housing being sealed at the groove of the upper housing; the side wall of the upper housing is provided with an installation opening, and the side plate and the installation opening are sealed together by a first sealing gasket.

[0013] Preferably, as one possible implementation, the sealing assembly includes a fixing plug, a second sealing gasket, and a clamping plug. The fixing plug has a cover portion and a cylindrical portion. The cylindrical portion is inserted into the antenna interface. The cover portion abuts against the outer side of the shell wall through the second sealing gasket. The clamping plug is threadedly engaged with the cylindrical portion. The portion of the clamping plug surrounding the cylindrical portion abuts against the inner side of the shell wall.

[0014] A sealing ring is embedded in the cylindrical body, and the compression plug has an annular groove. One end of the cylindrical body opposite to the cover body mates with the annular groove, and the portion of the compression plug located inside the cylindrical body abuts against the sealing ring. The cover body has a first through hole communicating with the internal space of the cylindrical body, and the compression plug has a second through hole communicating with the internal space of the cylindrical body. The antenna is inserted into the first through hole, the sealing ring, and the second through hole, and the outer wall of the sealing ring is sealed to the cylindrical body, and the inner wall of the sealing ring is sealed to the antenna.

[0015] Preferably, as one possible implementation, the lower housing is mounted on a shock-absorbing block, which is used to connect to the mounting structure.

[0016] Preferably, as one possible implementation, the top of the lower housing is provided with a boss, and the slot end of the upper housing cooperates with the boss.

[0017] The boss has a groove on its side, and a sealing strip is embedded in the groove. The sealing strip is in a sealing fit with the inner side of the upper housing; and / or, the bottom of the inner side of the upper housing has a sloping notch.

[0018] Preferably, as one possible implementation, the upper housing has two first sidewalls and two second sidewalls arranged opposite to each other, the mounting opening is opened in the first sidewall, the opening end of the second sidewall has a flange, and the flange is connected to the lower housing through a first threaded connector;

[0019] And / or, the side plate is connected to the upper housing via a second threaded connector.

[0020] The security protection device provided by the present invention includes a security protection module and the aforementioned security protection housing. The security protection module includes a microcontroller, a digital signal processor and a programmable logic device. The microcontroller is used to deploy a low-speed communication protection module, the digital signal processor is used to deploy a high-speed communication protection module, and the programmable logic device is used to deploy a security encryption algorithm module that requires fast computation. Both the digital signal processor and the programmable logic device are communicatively connected to the microcontroller.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] Paper honeycomb material has high inherent dielectric strength, which can reduce the interference of external high voltage current on the safety protection module in the inner cavity of the shell. In addition, paper honeycomb material also has high mechanical toughness, flexibility and resilience, making it less prone to breakage and providing high protection reliability. This can improve the network protection performance of the safety protection module, which is conducive to the development and popularization of intelligent driving vehicles. Furthermore, paper honeycomb has low density and light weight, which can achieve weight reduction. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural diagram of the safety protective housing provided in an embodiment of the present invention;

[0025] Figure 2 This is a cross-sectional view of the safety protective housing provided in an embodiment of the present invention;

[0026] Figure 3 for Figure 2 Enlarged view of section A;

[0027] Figure 4 A partial schematic diagram of the assembly structure of the sealing component and the shell wall in the safety protection housing provided in an embodiment of the present invention;

[0028] Figure 5 This is a partial schematic diagram of the assembly structure of the lower shell and the shock absorber in the safety protection shell provided in an embodiment of the present invention;

[0029] Figure 6 This is a partial structural schematic diagram of the safety protection device provided in an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the structure of the safety protection module in the safety protection device provided in an embodiment of the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 100 - Safety protective housing; 110 - Upper housing; 111 - Sealing strip; 112 - Sloping notch; 113 - First side wall; 114 - Second side wall; 115 - Flanged edge; 120 - Lower housing; 121 - Boss; 130 - Side plate; 131 - Insertion hole; 140 - Housing wall;

[0033] 200 - Heat sink; 210 - Heat sink column; 220 - Sealing gasket; 230 - Thermally conductive elastic pad;

[0034] 300-Centrifugal fan;

[0035] 400 - Sealing assembly; 410 - Retaining plug; 411 - Cover body; 412 - Cylinder body; 420 - Second sealing gasket; 430 - Compression plug; 440 - Sealing ring;

[0036] 500 - Shock absorber; 510 - First T-nut; 520 - Second T-nut; 530 - First stud;

[0037] 600 - Security Protection Module; 610 - Microcontroller; 620 - Digital Signal Processor; 630 - Programmable Logic Device; 640 - CAN Network; 650 - TSN Network; 660 - 4G / 5G Wireless Communication;

[0038] 700 - Heating element;

[0039] 800-antenna. Detailed Implementation

[0040] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] In the description of this invention, it should be noted that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limiting this invention.

[0042] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0044] See Figures 1-6 This embodiment provides a safety protection housing 100. The inner cavity of the safety protection housing 100 is used to install the safety protection module 600 of the intelligent driving vehicle. The shell wall 140 of the safety protection housing 100 has a sandwich middle layer, and the material of the sandwich middle layer is paper honeycomb.

[0045] Paper honeycomb material has high inherent dielectric strength, which can reduce the interference of external high voltage current on the safety protection module 600 in the inner cavity of the safety protection housing 100. In addition, paper honeycomb material also has high mechanical toughness, flexibility and resilience, is not easy to break, and has high protection reliability, which can improve the network protection performance of the safety protection module 600, which is conducive to the development and popularization of intelligent driving vehicles. Furthermore, paper honeycomb has low density and light weight, which can achieve weight reduction.

[0046] The shell wall 140 of the aforementioned safety housing 100 also has a conductive protective outer layer, which is disposed on the outer side of the middle layer of the sandwich structure and is made of carbon fiber woven fabric. It should be noted that the carbon fiber woven fabric can shield electromagnetic signals, reducing interference from external electromagnetic waves to the safety protection module 600 within the cavity of the safety housing 100. Furthermore, carbon fiber has high strength, further improving protection reliability, thereby further enhancing the network protection performance of the safety protection module 600.

[0047] The shell wall 140 of the aforementioned safety housing 100 also has an insulating inner layer, which is disposed on the inner side of the middle layer of the sandwich structure, and uses fiberglass cloth as the material for the insulating inner layer. It should be noted that the fiberglass cloth has high insulation properties, which can prevent external high-voltage current from interfering with the safety protection module 600 inside the safety housing 100, and can further improve the network protection performance of the safety protection module 600.

[0048] In fact, the shell wall of the safety protective enclosure 100 has a three-layer sandwich structure, namely, from the outside to the inside, a conductive protective outer layer, a middle sandwich layer, and an insulating inner layer. The material of the middle sandwich layer can be NOMAX paper honeycomb.

[0049] In the main planar portion of the safety protective housing 100, the thickness of the conductive protective outer layer can be set to 1 mm, the thickness of the sandwich middle layer can be set to 4 mm, and the thickness of the insulating inner layer is 1 mm. With these thicknesses, the strength of the safety protective housing 100 can be guaranteed.

[0050] Preferably, the shell walls 140 at the corners and openings of the safety protective shell 100 are thickened. This thickening of weak points prevents damage to the corners and openings of the safety protective shell 100, thereby ensuring the overall structural strength of the safety protective shell 100. Specifically, the three-layer structure of the shell walls at the corners and openings of the safety protective shell 100 can be thickened to 1.5 times the thickness of the main planar portion.

[0051] The safety housing 100 in this embodiment adopts a composite honeycomb structure, which can reduce weight by 50% and increase strength by 20% compared with aluminum of the same volume, achieving the effect of increasing strength on the basis of weight reduction; in addition, the safety housing 100 in this embodiment also has better shielding, sealing and heat dissipation capabilities.

[0052] Specifically, heat dissipation grooves can be formed on the safety protective housing 100, and heat dissipation blocks 200 can be fixedly installed in the heat dissipation grooves. The heat dissipation blocks 200 can be equipped with several spaced-apart heat dissipation columns 210. The arrangement of the heat dissipation columns 210 can increase the contact area between the heat dissipation blocks 200 and the air, thereby improving the heat dissipation effect. The heat dissipation columns 210 are thin cylinders to maximize the contact area between the heat dissipation blocks 200 and the air. Specifically, the heat dissipation blocks 210 can be configured as a press-bonded structure based on graphite material.

[0053] The heat dissipation groove can penetrate through the shell wall 140, and the heat dissipation block 200 can be sealed to the safety protection shell 100 through a thin sealing gasket 220 to ensure the sealing performance between the heat dissipation block 200 and the shell wall 140, and the connection is relatively convenient; specifically, the sealing gasket 220 can be an adhesive gasket. A thermally conductive elastic pad 230 can be provided between the heat dissipation block 200 and the heating element 700 in the inner cavity of the safety protection shell 100 to improve the heat dissipation effect.

[0054] Furthermore, a centrifugal fan 300 can be added. Correspondingly, a mounting slot is provided on the heat sink 200 to house the centrifugal fan 300. When the centrifugal fan 300 is operating, it can draw in external cool air axially and blow it laterally towards the area where the heat sink 210 is located. This allows the airflow to circulate throughout the entire heat sink 200 through the gaps in the heat sink 210, thus accelerating air circulation around the heat sink 210 and improving the heat dissipation effect of the heat sink 200. Specifically, two mounting slots can be provided and symmetrically arranged on the heat sink 200. Correspondingly, two centrifugal fans 300 can be provided to ensure optimal heat dissipation.

[0055] Specifically, see Figure 1 and Figure 4 An antenna interface for the antenna 800 can be provided on the security housing 100. A sealing component 400 can be installed at the antenna interface to seal the gap between the antenna interface and the antenna 800, maintain the sealing effect of the security housing 100, and ensure the network protection performance of the security module 600.

[0056] In the specific structure of the sealing assembly 400 described above, a fixing plug 410, a second sealing gasket 420, and a compression plug 430 may be provided. The fixing plug 410 has a cover portion 411 and a cylindrical portion 412. The cylindrical portion 412 of the fixing plug 410 is inserted into the antenna interface, and the cover portion 411 of the fixing plug 410 abuts against the outer surface of the shell wall 140 via the second sealing gasket 420. Simultaneously, an annular groove is provided on the compression plug 430, and the end of the cylindrical portion 412 facing away from the cover portion 411 is fitted into the annular groove to compress the pressure. The plug 430 is threaded into the cylindrical body 412, and the portion of the plug 430 surrounding the cylindrical body 412 abuts against the inner side of the shell wall 140. In this way, the plug 430 can work together with the fixing plug 410 to fix it at the antenna interface of the safety protection housing 100. At the same time, the second sealing gasket 420 located between the cover portion 411 of the fixing plug 410 and the outer side of the shell wall 140 can seal the gap between the plug 430 and the antenna interface, thereby improving the sealing performance of the inner cavity of the safety protection housing 100.

[0057] Furthermore, an annular groove can be formed on the compression plug 430, and the end of the cylindrical body 412 facing away from the cover body 411 is fitted into the annular groove. The outer ring of the compression plug 430 corresponding to the annular groove surrounds the cylindrical body 412, while the inner ring of the compression plug 430 corresponding to the annular groove is located inside the cylindrical body 412. A sealing ring 440 can be embedded inside the cylindrical body 412, and the portion of the compression plug 430 located inside the cylindrical body 412 abuts against the sealing ring 440. Thus, the sealing ring 440 is fixed inside the cylindrical body 412 by the compression plug 430 and will not come out. Based on this, an opening can be formed in the cover body 411 on the cylindrical body 412... The first through hole is connected to the internal space of the cylinder 2, and the second through hole is opened on the compression plug 430 to connect to the internal space of the cylinder 412, so that the antenna 800 can be inserted into the first through hole, the sealing ring 440 and the second through hole, and the antenna 800 can penetrate the shell wall 140; the outer side wall of the sealing ring 440 is sealed to the cylinder 412, and the inner side wall of the sealing ring 440 is sealed to the antenna 800. This not only seals the gap between the compression plug 430 and the antenna 800, improving the sealing performance of the inner cavity of the safety protection shell 100, but also prevents the antenna 800 from rubbing against the shell wall 140, extending the service life of the antenna 800.

[0058] See Figure 1 The safety housing 100 provided in this embodiment specifically includes an upper housing 110, a lower housing 120, and a side plate 130. The upper housing 110 is groove-shaped, and the lower housing 120 is plate-shaped. The lower housing 120 is sealed at the groove of the upper housing 110. An installation port is opened on the side wall of the upper housing 110, and the side plate 130 is sealed to the installation port on the upper housing 110 by a first sealing gasket. In this way, the upper housing 110, the lower housing 120, and the side plate 130 can form a sealed inner cavity with a good sealing effect.

[0059] Preferably, see Figure 5 The lower housing 120 can be mounted onto the shock absorber 500. In this way, by connecting the shock absorber 500 to the mounting structure, the safety housing 100 can be connected to the mounting structure. The shock absorber 500 can filter the vibration transmitted from the mounting structure to the inside of the safety housing 100. The shock absorber 500 can be made of rubber material, and the appropriate elastic rubber can be selected according to the working vibration characteristics of the mounting structure to effectively filter the vibration transmitted from the outside to the inside of the safety housing 100.

[0060] A first T-nut 510 can be embedded in the top of the damping block 500, so that the lower housing 120 and the damping block 500 can be assembled through the cooperation of the first stud 530 and the first T-nut 510; a second T-nut 520 can also be embedded in the bottom of the damping block 500, so that the damping block 500 can be assembled with the mounting structure through the cooperation of the second stud and the second T-nut 520. Specifically, a first T-shaped mounting groove 510 corresponding to the shape of the first T-nut 510 can be formed in the top of the damping block 500, so that the first T-nut 510 can be embedded in the first T-shaped mounting groove 510. At the same time, the first T-nut 510 can be fixed to the damping block 500 by adhesive. A second T-shaped mounting groove corresponding to the shape of the second T-shaped nut 520 can be opened at the bottom of the shock absorber block 500 so that the second T-shaped nut 520 can be embedded in the second T-shaped mounting groove. At the same time, the second T-shaped nut 520 can be fixed to the shock absorber block 500 by adhesive bonding.

[0061] See Figure 2 and Figure 3 A boss 121 can be provided on the top of the lower housing 120, and the slot end of the upper housing 110 is engaged with the boss 121 to form a bayonet structure.

[0062] Preferably, a groove can be formed on the side of the boss 121, and a sealing strip 111 can be embedded in the groove. The groove can position the sealing strip 111 and prevent the sealing strip 111 from coming out of the gap between the boss 121 and the upper housing 110, so that the sealing strip 111 can maintain an effective sealing fit with the upper housing 110. In this way, the sealing performance between the upper housing 110 and the lower housing 120 can be improved.

[0063] Furthermore, a sloping notch 112 can be provided at the bottom inner side of the upper housing 110. The sloping notch 112 can provide a certain guiding effect for the upper housing 110, so that the slot end of the upper housing 110 can be smoothly fitted onto the boss 121, making assembly easier. Specifically, the sealing strip 111 can be sealed and fitted with the sloping notch 112.

[0064] Specifically, the upper housing 110 has two first sidewalls 113 and two second sidewalls 114 arranged opposite to each other. The mounting opening can be opened on the first sidewall 113, and a flange 115 can be provided at the opening end of the second sidewall 114. The flange 115 can be connected to the lower housing 120 by a first threaded connector (such as a bolt). In this way, the upper housing 110 and the lower housing 120 can be reliably fixed, and the two can also be disassembled.

[0065] The side plate 130 can be connected to the upper housing 110 by a second threaded connector (such as a bolt), thus achieving reliable fixation of the upper housing 110 and the side plate 130, and also enabling their disassembly.

[0066] Specifically, a plug hole 131 can be provided on the side plate 130 to insert a plug-in component. On this basis, sealant can be applied to the edge of the plug-in component and / or the plug hole 131 to seal the gap between the plug-in component and the plug hole 131, so as to ensure a sealed fit between the plug-in component and the plug hole 131.

[0067] In fact, the safety protection housing 100 provided in this embodiment has been sealed at all assembly gaps to ensure that the inner cavity of the safety protection housing 100 has good sealing performance.

[0068] See Figure 6 and Figure 7 This embodiment also provides a security protection device, which includes a security protection module 600 and the aforementioned security protection housing 100. The security protection module 600 includes a microcontroller 610, a digital signal processor 620, and a programmable logic device 630. The microcontroller 610 is used to deploy a low-speed communication protection module, the digital signal processor 620 is used to deploy a high-speed communication protection module, and the programmable logic device 630 is used to deploy a security encryption algorithm module that requires fast computation. Both the digital signal processor 620 and the programmable logic device 630 are communicatively connected to the microcontroller 610.

[0069] The security protection device provided in this embodiment uses the security protection housing 100 to encapsulate the security protection module 600, which can improve the network protection performance of the security protection module 600. Furthermore, in this embodiment, the real-time protection system (i.e., terminal protection system) in the security protection module 600 is divided into three modules: a low-speed communication protection module (with protection function for low-speed CAN communication), a high-speed communication protection module (with protection function for high-speed CANFD or FlexRay communication), and a security encryption algorithm module requiring fast computation. These three modules are deployed separately, i.e., a distributed security protection deployment scheme based on communication capabilities is adopted. Specifically, the low-speed communication protection module is deployed in the microcontroller 610 (MCU), the high-speed communication protection module is deployed in the digital signal processor 620 (DSP), and the security encryption algorithm module requiring fast computation is deployed in the programmable logic device 630 (FPGA). With both the digital signal processor 620 and the programmable logic device 630 communicatively connected to the microcontroller 610, the digital signal processor 620 utilizes XGATE or on-chip control functions to combine the protection algorithm of the digital signal processor 620 with the algorithm of the programmable logic device 630. Through the CAN network 640 and the TSN network 650, a real-time protection system is formed, which helps to improve computation speed and protection performance.

[0070] The security protection device provided in this embodiment uses a combination of MCU, DSP and FPGA to meet the hardware requirements of intelligent driving vehicle T-box, VCU, gateway and security. It adopts a control strategy update mechanism that combines real-time protection and post-event optimization and upgrade. The real-time control strategy combines FPGA hardware and DSP software to realize encryption and intrusion detection functions.

[0071] Specifically, the aforementioned security protection device also includes complex, low-real-time strategies deployed in a remote cloud, intelligent learning and complex algorithms for network protection, cloud communication to configure complex strategy algorithms (optimization algorithms) in the cloud, and connects to the digital signal processor 620 via Ethernet or 4G / 5G wireless communication 660. The cloud server improves the database and intrusion detection by post-analysis of real-time protection processing data, proposes protection strategies, modifies implementation strategies, and the communication returns to the real-time protection system for implementation and download to the real-time protection system.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A safety shield housing characterized by, The inner cavity of the safety protection shell is used for mounting a safety protection module of a smart driving vehicle, and the shell wall of the safety protection shell has a sandwich middle layer, and the material of the sandwich middle layer is paper honeycomb; The safety protection shell is provided with a heat dissipation groove penetrating through the shell wall of the safety protection shell, a heat dissipation block is fixedly arranged in the heat dissipation groove, and a heat-conducting elastic pad is arranged between the heat dissipation block and a heating element in the inner cavity of the safety protection shell; the heat dissipation block comprises a plurality of heat dissipation columns arranged at intervals, the heat dissipation block is provided with a mounting groove, and a centrifugal fan is mounted in the mounting groove, and the centrifugal fan is used for blowing air to the area where the heat dissipation columns are located; The safety protection shell comprises a lower shell, the lower shell is mounted on a damping block, and the damping block is used for being connected to a mounting structure; a first T-shaped nut is embedded in the top of the damping block, the first T-shaped nut is connected to the lower shell through a first stud, a second T-shaped nut is embedded in the bottom of the damping block, and the second T-shaped nut is connected to the mounting structure through a second stud; The safety protection shell comprises an upper shell, the upper shell is in a groove shape, the lower shell is in a plate shape, and the lower shell is sealed at the slot opening of the upper shell; a boss is arranged on the top of the lower shell, the slot opening end of the upper shell is matched with the boss, and the boss has a slope gap on the inner side and bottom of the upper shell.

2. The safety shield housing of claim 1, wherein, The shell wall has a conductive protective outer layer, the conductive protective outer layer is located on the outside of the sandwich middle layer, and the material of the conductive protective outer layer is carbon fiber woven cloth; And / or, the shell wall further has an insulating inner layer, the insulating inner layer is located on the inside of the sandwich middle layer, and the material of the insulating inner layer is glass fiber cloth.

3. The safety shield housing of any of claims 1-2, wherein, The safety protection shell is provided with an antenna interface for penetrating an antenna, and a sealing assembly is mounted at the antenna interface, and the sealing assembly is used for sealing the gap between the antenna interface and the antenna; And / or, the safety protection shell comprises a side plate, the side wall of the upper shell is provided with a mounting port, and the side plate is sealingly matched with the mounting port through a first sealing gasket.

4. The safety shield housing of claim 3, wherein, The sealing assembly comprises a fixed plug, a second sealing gasket and a pressing plug, the fixed plug has a cover body part and a barrel body part, the barrel body part is inserted into the antenna interface, and the cover body part is abuttingly matched with the outer side surface of the shell wall through the second sealing gasket; the pressing plug is threadedly matched with the barrel body part, and the part surrounding the barrel body part of the pressing plug abuts against the inner side surface of the shell wall; The barrel body part is embedded with a sealing ring, the pressing plug has an annular groove, one end of the barrel body part away from the cover body part is matched with the annular groove, and the part of the pressing plug in the barrel body part abuts against the sealing ring; the cover body part is provided with a first perforation communicating with the inner space of the barrel body part of the barrel body part, the pressing plug is provided with a second perforation communicating with the inner space of the barrel body part, and the antenna is inserted into the first perforation, the sealing ring and the second perforation, and the outer side wall of the sealing ring is sealingly matched with the barrel body part, and the inner side wall of the sealing ring is sealingly matched with the antenna.

5. The safety shield housing of claim 3, wherein, The side surface of the boss is provided with a groove, and a sealing strip is embedded in the groove and sealingly matched with the inner side surface of the upper shell.

6. The safety shield housing of claim 3, wherein, The upper shell has two oppositely arranged first side walls and two oppositely arranged second side walls, the mounting opening is arranged on the first side wall, the opening end of the second side wall is provided with a flange, and the flange is connected with the lower shell through a first threaded connecting piece. And / or, the side plate is connected with the upper shell through a second threaded connecting piece.

7. A safety guard comprising: The safety protection device comprises a safety protection module and the safety protection shell according to any one of claims 1-6, the safety protection module comprises a microcontroller, a digital signal processor and a programmable logic device, the microcontroller is used for deploying a low-speed communication protection module, the digital signal processor is used for deploying a high-speed communication protection module, and the programmable logic device is used for deploying a security encryption algorithm module requiring fast operation, and the digital signal processor and the programmable logic device are in communication connection with the microcontroller.

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