monitoring device

Abstract

The present application relates to a kind of monitoring instruments, including shell, monitoring function component and heat dissipation component, monitoring function component includes gas monitoring component, steering engine component and control component, control component includes power supply, one or more control boards, shell includes outer shell, main explosion-proof shell and steering engine explosion-proof shell, main explosion-proof shell, steering engine explosion-proof shell are set in outer shell, steering engine component is set in steering engine explosion-proof shell, control component is set in main explosion-proof shell body;Heat dissipation component is set in main explosion-proof shell, it includes multiple heat-conducting plates, power supply and control board between and / or multiple control boards between are provided with heat-conducting plate.The present application guarantees the explosion-proof performance while reducing the weight of explosion-proof shell, avoid other problems caused by weight reduction, such as strength, material spark, reliability etc.;Explosion-proof shell itself is used as heat sink, and heat source and product cold end are connected one by one, and the problem of heat dissipation of heavy explosion-proof shell is solved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of monitoring equipment, and particularly relates to a monitor. BACKGROUND

[0002] Gas monitoring and visible light monitoring are mostly two independent products, and a few companies combine the two products to design a multipurpose monitor. However, due to the integration of multiple function modules in such products, especially the gas monitoring function, the working environment of the products requires explosion-proof. Since all components of the product cannot be completely intrinsically safe, a large explosion-proof isolation shell is needed as the outer shell to enclose the entire product.

[0003] In terms of material selection of the explosion-proof shell, the explosion-proof shell of the prior art generally uses high-strength metal materials as the main design to meet the standard requirements of explosion pressure, temperature, impact, and wear resistance, etc. The weight of the product is greatly increased, which is not conducive to user operation and maintenance. For example, using copper and iron as the base material of the explosion-proof shell not only has a high cost, but also has a large weight, resulting in an excessively heavy explosion-proof shell. Using magnesium aluminum and other base materials is easy to produce sparks, and the strength and pressure resistance are not enough, and deformation is easy to occur, which cannot meet the needs of the explosion-proof environment. In order to solve these problems, some researches use polyurea spraying combination based on magnesium aluminum and other base materials to meet the anti-sparking effect. Although this ensures the quality of the product, it increases the process difficulty and greatly increases the cost. In addition, porous materials are also introduced into the design of the explosion-proof shell, such as porous materials made by mixing metal powder and binder and then pressing and sintering, and sandwich boards made of porous aluminum and aluminum or steel materials, which are used to control the quality while ensuring the structural strength. However, the process is more complex and is not conducive to heat dissipation.

[0004] In terms of structural design of the explosion-proof shell, some explosion-proof shells are designed with pressure relief ports or air vents, which can relieve pressure during explosion, or more complex mechanical limiting structures, which can destroy the internal buffer device during explosion by the explosion impact force, and make the limiting mechanism dead lock to achieve the purpose of explosion-proof. However, this design has the following problems: on the one hand, the structure is complex, the production and processing cost is high, and the use reliability is difficult to guarantee; on the other hand, the application scene is limited, for example, in the environment of gas monitoring or water and dust proofing, the explosion-proof shell inside needs to be completely sealed and cannot have air vents.

[0005] The explosion-proof shell of small equipment generally adopts an explosion-proof design, and the space inside the shell is mostly sealed, without good air convection conditions and without the ability to install air cooling equipment. The internal control chip needs to work at an appropriate temperature to work normally and efficiently, so the heat dissipation design of the shell needs to be considered. The heat dissipation design of existing large equipment can generally install auxiliary heat dissipation devices such as air cooling and liquid cooling, while small products are limited in space and energy consumption, and can only consider optimizing the structural design. SUMMARY

[0006] The present application aims to provide a monitor with the characteristics of explosion-proof, lightweight, and good heat dissipation.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the present application is:

[0008] A monitor, comprising a shell, a monitoring function component, and a heat dissipation component, the monitoring function component comprising a gas monitoring component, a rudder component, and a control component, the control component comprising a power supply, one or more control boards,

[0009] The shell comprises an outer shell, a main explosion-proof shell, and a rudder explosion-proof shell, the main explosion-proof shell and the rudder explosion-proof shell are both arranged in the outer shell, the rudder component is arranged in the rudder explosion-proof shell, and the control component is arranged in the main explosion-proof shell.

[0010] The heat dissipation component is arranged in the main explosion-proof shell and comprises a plurality of heat conduction plates, the heat conduction plates are arranged between the power supply and the control boards and / or between the control boards.

[0011] Preferably, the heat dissipation component further comprises one or more heat conduction pipes, the heat conduction pipes are filled with heat conduction liquid, and the heat conduction pipes are embedded on the heat conduction plates.

[0012] Further preferably, the heat conduction pipes are made of copper pipes, and the heat conduction liquid is an easily volatile substance.

[0013] Preferably, the heat dissipation component further comprises a flexible heat conduction strip, one end of the flexible heat conduction strip is connected to the control board and / or the heat conduction plate, and the other end of the flexible heat conduction strip penetrates out of the main explosion-proof shell.

[0014] Further preferably, the flexible heat conduction strip is made of a copper strip.

[0015] Further preferably, an explosion-proof gland is connected to the bottom of the outer side of the main explosion-proof shell, and the other end of the flexible heat conduction strip penetrates through the explosion-proof gland and is connected to the outer shell.

[0016] Further preferably, the flexible heat conduction strip at least penetrates through an outer heat insulation sleeve of the explosion-proof gland.

[0017] Preferably, the control board and the heat conduction plate are arranged in the up-down direction of the main explosion-proof shell, and the heat conduction plates are arranged on both sides of the control board.

[0018] Preferably, the main explosion-proof shell comprises a main explosion-proof shell base and a main explosion-proof shell upper shell, a plurality of grooves are formed on the main explosion-proof shell base, and the bottom of the heat-conducting plate is fixed in the grooves.

[0019] Preferably, the control plate is fixed on the heat-conducting plate, and the plurality of heat-conducting plates are fixed through fasteners.

[0020] Further preferably, the main explosion-proof shell base and the main explosion-proof shell upper shell are connected through threads.

[0021] Preferably, the heat-conducting plate is made of copper plate, and the heat-conducting plate and the control plate and the heat-conducting plate and the main explosion-proof shell are coated with heat-conducting silicone grease.

[0022] Preferably, the rudder assembly comprises a pitch rudder and a yaw rudder, the rudder explosion-proof shell comprises a pitch rudder explosion-proof shell and a yaw rudder explosion-proof shell, the pitch rudder explosion-proof shell and the yaw rudder explosion-proof shell are respectively located on the upper and lower sides of the main explosion-proof shell, the pitch rudder is arranged in the pitch rudder explosion-proof shell, and the yaw rudder is arranged in the yaw rudder explosion-proof shell.

[0023] Preferably, the outer shell body comprises an outer shell base and an outer shell upper shell, the outer shell upper shell is made of an anti-static non-metal material, and the outer shell base, the main explosion-proof shell, and the rudder explosion-proof shell are all made of an aluminum alloy material.

[0024] Compared with the prior art, the application has the following advantages due to the above technical scheme:

[0025] 1. In the design of the explosion-proof shell, the functions of the explosion-proof shell are divided into ordinary requirements such as dustproof, waterproof, and drop-proof and explosion-proof requirements, the integrated explosion-proof shell body is divided into an integrated ordinary outer shell made of a non-metal material and a plurality of explosion-proof shells used for explosion-proof inside, the mass of the explosion-proof shell is greatly reduced, the weight of the explosion-proof shell is reduced as much as possible under the premise that the explosion-proof performance meets the explosion-proof requirements, and other problems caused by weight reduction, such as strength, material spark prevention, and reliability, are avoided as much as possible.

[0026] 2. The sandwich structure design of the rigid heat-conducting plate is proposed, the explosion-proof shell itself is used as a heat sink to connect the heat source and the cold end of the product one by one, and the problem of heat dissipation caused by the reduction of the closed explosion-proof shell is solved. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings are provided to further illustrate the present application. Figure 1 FIG. 1 is a structural schematic diagram of an explosion-proof shell according to the present application;

[0028] The accompanying drawings are provided to further illustrate the present application. Figure 2This is a schematic diagram of the split-type explosion-proof shell in this embodiment;

[0029] Appendix Figure 3 This is an external schematic diagram of the main explosion-proof housing in this embodiment;

[0030] Appendix Figure 4 For the appendix Figure 3 Schematic diagram of the AA section;

[0031] Appendix Figure 5 This is a schematic diagram of the interior of the main explosion-proof enclosure in this embodiment;

[0032] Appendix Figure 6 This is an external schematic diagram of the heat dissipation component model in this embodiment;

[0033] Appendix Figure 7 For the appendix Figure 6 Schematic diagram of the BB section;

[0034] Appendix Figure 8 This is a comparison chart of the steady-state thermodynamic simulation results of the heat dissipation model in this embodiment.

[0035] In the attached diagrams above:

[0036] 10. Gas monitoring component; 11. Camera component; 12. Screen component; 130. Battery; 131. Main control board; 132. Lower-level control board; 133. Safety barrier board;

[0037] 20. Outer shell; 21. Main explosion-proof shell; 210. Main explosion-proof shell base; 211. Main explosion-proof shell upper shell; 212. Groove; 220. Pitch servo explosion-proof shell; 221. Yaw servo explosion-proof shell; 23. Explosion-proof gland;

[0038] 30. Heat-conducting plate; 31. Heat-conducting pipe; 32. Flexible heat-conducting tape; 33. Heat insulation sleeve;

[0039] 3' Heat-conducting plate; 4' CPU chip; 5' Heat sink; 6' Explosion-proof shell. 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 the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0042] A monitor comprises a shell, a monitoring function assembly and a heat dissipation assembly.

[0043] The monitoring function assembly comprises a gas monitoring assembly 10, a camera assembly 11, a screen assembly 12, a rudder assembly and a control assembly. The gas monitoring assembly 10 is used to monitor the type and / or concentration of gas; the camera assembly 11 is used to take pictures of the environment around the monitor; the screen assembly 12 is used for display and / or control; the rudder assembly is used to control the attitude adjustment of the monitor, and the embodiment specifically comprises a pitch rudder and a yaw rudder; the control assembly is used to realize the overall control of the monitor, and the embodiment specifically comprises a battery 130 (power supply), two control boards: a main control board 131 (Raspberry Pi) and a lower computer control board 132 (STM32).

[0044] As shown in Figures 1-3 The shell comprises an outer shell 20, a main explosion-proof shell 21 and a rudder explosion-proof shell.

[0045] The gas monitoring assembly 10, the camera assembly 11 and the screen assembly 12 can all achieve intrinsic safety level, so these assemblies do not need to be equipped with an explosion-proof shell. In the embodiment, the gas monitoring assembly 10 is detachably connected to the outer shell 20, such as by magnetic attraction, buckling and the like; the camera assembly 11 is arranged in the outer shell 20 and takes pictures through the outer shell 10; and the screen assembly 12 is embedded in the outer shell 20.

[0046] The main explosion-proof shell 21 and the rudder explosion-proof shell are arranged in the outer shell body 20. The rudder assembly is arranged in the rudder explosion-proof shell, and the pitch rudder and the yaw rudder can be designed to have corresponding explosion-proof shells. The pitch rudder is arranged in the pitch rudder explosion-proof shell 220, and the yaw rudder is arranged in the yaw rudder explosion-proof shell 221. The pitch rudder explosion-proof shell 220 and the yaw rudder explosion-proof shell 221 are respectively located on the upper and lower sides of the main explosion-proof shell 21. The pitch rudder explosion-proof shell 220 is connected to the top of the main explosion-proof shell 21, and the yaw rudder explosion-proof shell 221 is connected to the bottom of the outer shell body 1. The main explosion-proof shell 21 is in the form of an irregular cylinder with a small upper end and a large lower end. The control assembly is arranged in the main explosion-proof shell 21. Specifically, the main explosion-proof shell 21 includes a main explosion-proof shell base 210 and a main explosion-proof shell upper shell 211. The main explosion-proof shell base 210 and the main explosion-proof shell upper shell 211 are connected by threads, thereby facilitating the installation of the control assembly.

[0047] Since the main explosion-proof shell 21 and the rudder explosion-proof shell are arranged in the outer shell body 20, the influence of static electricity does not need to be considered. Therefore, the material can be an aluminum alloy with a smaller quality. The outer shell body 20 can be made of a non-metal material with anti-static properties, such as ABS, PP, PVC, etc. The outer shell body 20 is generally much lighter than metal. The main explosion-proof shell 21 and the rudder explosion-proof shell resist explosion impact, and the outer shell body 20 is dustproof, waterproof, and drop-proof, and can be designed to be thinner. In this way, the overall product quality is greatly reduced. In the present embodiment, the outer shell body 20 includes an outer shell base and an outer shell upper shell. The outer shell upper shell is made of an anti-static non-metal material, and the outer shell base is also made of an aluminum alloy material.

[0048] Based on the volume estimation of the three-dimensional modeling software Solidworks, the volume of the existing design of the outer shell body (the outer shell base and the outer shell upper shell) is approximated as the volume of the integrated explosion-proof shell. The estimation results are shown in Table 1. The explosion-proof design can reduce the original design quality from 13.85 kg to 4.65 kg, which is only about one-third of the previous quality.

[0049] Table 1: Explosion-proof shell lightweight design weight reduction estimation

[0050]

[0051] By improving the design of the existing integrated explosion-proof shell containing all components into multiple small explosion-proof shells, and optimizing the shape of the explosion-proof shell to be as close as possible to the shape of the internal components, the volume of the explosion-proof shell can be further reduced, and the space utilization can be optimized.

[0052] Through the above weight reduction design, the distance between the components is closer, and they are located in small sealed spaces, and are isolated from the external environment by two layers of shells. As a result, the problem of poor heat dissipation may occur. Therefore, for the main explosion-proof shell 21, the present application provides a heat dissipation assembly in the main explosion-proof shell 21.

[0053] As Figure 4 , 5 shown: in an embodiment of the present application: the heat dissipation assembly includes a plurality of heat-conducting plates 30, the battery 130 and the control board are provided with heat-conducting plates 30 between them and / or between a plurality of control boards. In this embodiment: the heat sources in the main explosion-proof shell 21 shown in the figure are sequentially arranged in order: the main control board 131, the lower machine control board 132, the safety barrier plate 133 (power isolation), the battery 130, and the heat-conducting plates 30 are arranged between the two sides of the main control board 131, between the lower machine control board 132 and the safety barrier plate 133, and between the safety barrier plate 133 and the battery 130.

[0054] The heat-conducting plates 30 are made of copper plates, and the heat-conducting plates 30 and the main control board 131, the lower machine control board 132 are coated with heat-conducting silicone grease to reduce the thermal resistance between them. The main control board 131, the lower machine control board 132, the safety barrier plate 133 (power isolation), the battery 130 and the heat-conducting plates 30 are arranged along the up-down direction of the main explosion-proof shell 21, the main control board 131 and the lower machine control board 132 are fixed on the heat-conducting plates 30, the plurality of heat-conducting plates 30 are fixed by fasteners, a plurality of grooves 212 are formed on the main explosion-proof shell base 211, the bottom of the heat-conducting plates 30 is fixed in the grooves 212, and the same heat-conducting plates 3 and the grooves 212 of the main explosion-proof shell base 211 are also coated with heat-conducting silicone grease. In this way, heat can be conducted to the main explosion-proof shell 21 by the heat-conducting plates 30 (which have excellent heat conduction ability, as shown in the following table), on the one hand, the main explosion-proof shell 21 itself with a large surface area can be used as a heat sink to enhance the heat dissipation capacity; on the other hand, the main explosion-proof shell 21 is made of aluminum alloy material, which has a good thermal conductivity coefficient, as shown in Table 2 below:

[0055] Table 2: Thermal conductivity coefficient comparison table of common materials:

[0056]

[0057] In another embodiment of the present application: the heat dissipation assembly further includes one or more heat-conducting pipes 31, the heat-conducting pipes 31 are embedded in the heat-conducting plates 30, and the heat-conducting pipes 31 are filled with heat-conducting liquid. The heat-conducting pipes 31 are usually made of copper pipes, and the heat-conducting liquid is volatile. The heat-conducting pipes 31 can be purchased directly, and will not be described here. As shown in the figure, two heat-conducting pipes 31 are embedded in the heat-conducting plates 30 on one side / two sides of the main control board 131 which generates the most heat. The thermal conductivity coefficient of such heat-conducting pipes 31 is generally several dozen times that of pure copper, which can cope with the sudden temperature rise of the chips on the main control board 131, and can timely and quickly conduct heat into the main explosion-proof shell 21 to ensure the normal work of the chips.

[0058] In still another embodiment of the present application: the heat dissipation assembly further comprises a flexible heat-conducting strip 32, one end of the flexible heat-conducting strip 32 is connected to the heat source (control panel, and / or heat-conducting plate 30), the other end of the flexible heat-conducting strip 32 penetrates out of the main explosion-proof shell 21, and the flexible heat-conducting strip 32 is made of copper strip. Since the heat-conducting plate 30 is generally made of rigid material, has a fixed shape, and can only be placed inside the main explosion-proof shell 21, the design and installation are limited. Through the flexible copper heat-conducting strip, without changing the existing explosion-proof shell design, the copper cable is tinned or fixed by bolts at one end on several specific heat sources such as the CPU and memory of Raspberry Pi, and the other end penetrates through the explosion-proof gland 23 and extends out of the main explosion-proof shell 21 to connect to the lowest temperature position of the monitor (generally the aluminum alloy main explosion-proof shell base 210). The flexible heat-conducting strip 32 made of copper does not increase the installation difficulty of the product, and the number and fixed position of the flexible heat-conducting strip 32 can be freely increased according to needs, and the heat dissipation demand can be flexibly met. The flexible heat-conducting strip 31 at least penetrates through the external heat insulation sleeve 33 of the explosion-proof gland 23 to avoid burning the internal part of the explosion-proof gland 23 due to high heat, and at the same time meets the explosion-proof requirement, and can directly build a point-to-point connection between the heat source and the low-temperature source.

[0059] The heat dissipation assembly in the diagram simultaneously comprises the heat-conducting plate 30, the heat-conducting pipe 31, and the flexible heat-conducting strip 32, and at this time the effect of the heat dissipation assembly is also the best.

[0060] The effect of the present application is verified by steady-state thermal simulation through the Solidworks simulation module. There are three basic ways of heat transfer: heat conduction, heat convection, and heat radiation.

[0061] In heat conduction, the calculation of the flat wall heat conduction thermal resistance R (K / w) is mainly considered, and the formula is: Where δ is the wall thickness (m), λ is the thermal conductivity (w / mK), A is the cross-sectional area perpendicular to the heat flow direction (m 2 ).

[0062] In heat convection, the heat transfer coefficient α (w / (m^2K)) of the convection heat transfer surface is mainly considered. The convection heat transfer is a very complex heat transfer process. The properties of the fluid, the geometric conditions of the heat transfer surface, the change of the fluid state, and the boundary conditions of the heat transfer surface all have an impact on the convection heat transfer process.

[0063] Heat radiation is not considered due to its small impact.

[0064] To prove the rationality of the present embodiment, a simple heat dissipation assembly model is designed (such as Figure 6 , 7Simulation verification is carried out (as shown in the figure): the heat source is a CPU chip 4, the heat power of which is set to 20w in the experiment, the CPU chip 4 is located on a heat conduction plate 3', the heat conduction plate 3' is embedded in a groove in the base of the explosion-proof shell 60, and a heat sink 5 is tightly installed on the heat conduction plate 3'. The material of the heat sink 5 is copper, and the thermal conductivity is 401w / mK. The material of the explosion-proof shell 6 is aluminum alloy, and the thermal conductivity is 155w / mK.

[0065] The size of the CPU chip 4 is 2mm*10mm*10mm, the size of the heat conduction plate 3' is 5mm*40mm*80mm, the radius of the bottom surface of the explosion-proof shell base 210' is 75mm, the thickness of the bottom plate is 5(w / (m^2K)), and the size of the heat sink 5 is 10mm*40mm*40mm. The size of the two clamping openings of the explosion-proof shell 6 base is 10mm*22.5mm*40mm, and the direction of the heat sink is opposite to the direction of the heat sink (i.e. Figure 7 The right figure looks at the CPU chip 4 from right to left, and the distance between the upper, left and right surfaces of the CPU chip 4 and the corresponding surfaces of the heat conduction plate 3' is 15mm. In the same direction, the distance between the front and rear surfaces of the heat conduction plate 3' and the clamping opening of the explosion-proof shell 6 base is 22.5mm.

[0066] Comparative example: corresponding to ordinary heat dissipation design, heat dissipation mainly relies on heat convection of the heat sink, at this time the heat conduction plate is an epoxy resin material without any filling, the simulation CPU chip is on a FR-4 type PCB board, and the PCB board is embedded in the shell base, and the thermal conductivity of the FR-4 type PCB board is approximately 0.188w / mK.

[0067] At this time, the internal thermal resistance of each interaction surface can be calculated by the thermal resistance calculation formula as shown in Table 3:

[0068] Table 3: Thermal resistance calculation results of each interaction surface when the heat conduction plate is an epoxy resin:

[0069]

[0070] After consulting relevant information, the heat transfer coefficient a between the heat sink and the air in the explosion-proof shell is set to 25(w / (m^2K)), the heat transfer coefficient a between the outer surface of the explosion-proof shell and the air outside is set to 100(w / (m^2K)), the internal environment temperature of the explosion-proof shell is set to 320K, and the external environment temperature of the explosion-proof shell is set to 298K.

[0071] Example one: this scheme aims to simulate: this embodiment adopts a heat conduction plate and assists a high-efficiency copper heat dissipation pipe, which can be approximately understood as that the chip is placed on a heat conduction plate made of copper, the heat conduction plate is embedded in the base of the explosion-proof shell, and the thermal conductivity of copper is 401w / mK. At this time, the thermal resistance of each interaction surface is calculated as shown in Table 4, and the heat transfer coefficient remains unchanged:

[0072] Table 4: Thermal resistance calculation results of each interface when the heat-conducting plate is copper

[0073]

[0074] Example Two: This scheme aims to simulate: Based on Example One, the heat of the chip is transmitted to the cold end of the device one by one through the flexible heat-conducting band (copper cable). It is assumed that the cold end can always maintain room temperature. At this time, it can be approximately understood that the heat sink is the flexible heat-conducting band, which directly connects the chip and the object with a fixed room temperature to conduct heat. It is not difficult to set the heat transfer coefficient α of the heat sink and the air convection in the explosion-proof shell to be 50 (w / (m^2K)), and the air temperature inside and outside the explosion-proof shell is set to 298 K (room temperature, about 25 degrees Celsius).

[0075] The calculation results of the Solidworks simulation thermal simulation module are as follows: the highest temperature around the chip is reduced from 422 K (about 149 degrees Celsius) of the comparative example to 330 K (about 57 degrees Celsius) of Example One, which has been reduced to a reasonable range. The temperature is further reduced to 319 K (about 46 degrees Celsius) through the improvement of Example Two, which is more beneficial. As can be seen from the temperature distribution, the designs of the last two examples are conducive to guiding the temperature to the explosion-proof shell, as shown in Figure 8 .

[0076] The above examples are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made in accordance with the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A monitoring instrument, comprising a housing, monitoring functional components, and a heat dissipation component, wherein the monitoring functional components include a gas monitoring component, a servo component, and a control component, wherein the servo component includes a pitch servo and a yaw servo; and the control component includes a power supply and one or more control boards, characterized in that: The housing includes an outer shell, a main explosion-proof shell, and a servo explosion-proof shell. The main explosion-proof shell and the servo explosion-proof shell are both housed within the outer shell. The servo assembly is housed within the servo explosion-proof shell. The outer shell includes an outer shell base and an outer shell upper shell. The outer shell upper shell is made of anti-static non-metallic material. The main explosion-proof shell includes a main explosion-proof shell base and a main explosion-proof shell upper shell. The main explosion-proof shell base has multiple grooves. The servo explosion-proof shell includes a pitch servo explosion-proof shell and a yaw servo explosion-proof shell. The pitch servo explosion-proof shell and the yaw servo explosion-proof shell are located on the upper and lower sides of the main explosion-proof shell, respectively. The pitch servo is housed within the pitch servo explosion-proof shell, and the yaw servo is housed within the yaw servo explosion-proof shell. The control assembly is housed within the main explosion-proof shell. The outer shell base, the main explosion-proof shell, and the servo explosion-proof shell are all made of aluminum alloy. The heat dissipation component is disposed inside the main explosion-proof housing and includes multiple heat-conducting plates. The heat-conducting plates are disposed between the power supply and the control board, and / or between the multiple control boards. The bottom of the heat-conducting plate is fixed in the groove.

2. The monitoring instrument according to claim 1, characterized in that: The heat dissipation assembly further includes one or more heat pipes, the heat pipes being filled with a heat-conducting liquid and embedded in the heat-conducting plate.

3. The monitoring instrument according to claim 1, characterized in that: The heat dissipation assembly also includes a flexible heat-conducting tape, one end of which is connected to the control board and / or the heat-conducting plate, and the other end of which extends out of the main explosion-proof shell.

4. The monitoring instrument according to claim 3, characterized in that: An explosion-proof gland is connected to the bottom outer side of the main explosion-proof housing, and the other end of the flexible conductive tape passes through the explosion-proof gland and connects to the outer housing.

5. The monitoring instrument according to claim 1, characterized in that: The control board and heat-conducting plate are both arranged along the vertical direction of the main explosion-proof shell, and the heat-conducting plate is arranged on both sides of the control board.

6. The monitoring instrument according to claim 1, characterized in that: The control board is fixed on the heat-conducting plate, and the multiple heat-conducting plates are fixed together by fasteners.

7. The monitoring instrument according to claim 1, characterized in that: The heat-conducting plate is made of copper, and thermal grease is also applied between the heat-conducting plate and the control plate, and between the heat-conducting plate and the main explosion-proof shell.

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