Intrinsic safety type power supply

Abstract

The invention discloses an intrinsic safety type power supply which comprises an outer shell, a top cover is fixedly installed at the top end of the outer shell in a sealed mode through fixing bolts, an electrical element is installed in the outer shell, a handle is installed in the middle of the top end face of the top cover, and an inner shell is arranged in the outer shell in an attached mode. The inner space of the inner shell is divided into a mounting part and a power connection part by a partition plate which is longitudinally and integrally arranged on the inner side of the inner shell; wherein component fixing frames capable of assisting in heat dissipation of the electrical components are fixed in the mounting part, and two groups of fixing frames are symmetrically arranged in the inner shell; wherein a telescopic sealing connector lug is mounted in the power connection part and is used for power connection; and fin plates are convexly arranged on the bottom surface of the shell at equal intervals. According to the intrinsic safety type power supply, electrical elements can be stably installed and supported, fixing and buffering can be conducted, carrying is convenient, damage is avoided, heat dissipation use can be efficiently conducted, and stable and lasting use of the intrinsic safety type power supply is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of intrinsically safe power supplies, and specifically to an intrinsically safe power supply. Background Art

[0002] An intrinsically safe power supply refers to an intrinsically safe type power supply, which is a kind of electrical equipment used in flammable and explosive environments. It is widely used in dangerous places such as coal mines, oil fields, and chemical industries or for emergency use. It can avoid explosions and play a role in stable power supply. For example, the patent with the application number 202411342174.6 discloses a mine explosion-proof and intrinsically safe multi-way power supply box, which relates to the technical field of mechanical processing. The mine explosion-proof and intrinsically safe multi-way power supply box includes a box body, a ventilation mechanism, a cooling mechanism, a loading and unloading mechanism, and a transformer chamber. One side of the box body is hinged with an explosion-proof box door, and a top external connection box is arranged directly above the box body. Two sides of the top external connection box are symmetrically penetrated and connected with external wiring pipes. A ventilation mechanism is arranged on one side of the box body. The ventilation mechanism circulates and replaces the inside of the box body, thereby avoiding the corrosion of electrical components by humid gas in the mine environment, and then ensuring the stability of the operation and connection of electrical components. Fasteners are connected at equal intervals inside the box body. When the equipment is running, oil is injected into the transformer chamber again through a circulation pump, thereby taking away the heat generated by the operation of the equipment inside the transformer chamber. The waste heat of the heated and cooled oil is effectively used to dry the filter element, improving energy efficiency. For example, the patent with the application number 201911425089.5 discloses a mine intrinsically safe power supply box. In practical applications, a carbon fiber board is coated on the outer sides of the side wall and the bottom wall of the protection box body; there is a sandwich between the carbon fiber board and the protection box body; a filling material is filled in the sandwich; full protection of the power supply box is achieved. Sliders, slide rails, and limit blocks are used to protect the intrinsically safe power supply arranged in the power supply box to prevent damage to the intrinsically safe power supply during the handling of the power supply box. One end of a heat-conducting metal rod is connected to the intrinsically safe power supply, and the other end is connected to the carbon fiber board; the heat dissipation function of the intrinsically safe power supply box is improved. However, in combination with the actual utilization of intrinsically safe power supplies, there are still certain drawbacks in the current intrinsically safe power supplies during use. Specifically: 1. The intrinsically safe power supply uses internal heat dissipation fins for heat dissipation. During long-term use, it is difficult to ensure the rapid dissipation of the heat accumulated inside the intrinsically safe power supply, which is not conducive to maintaining the long-term stable operation of the intrinsically safe power supply. This causes the intrinsically safe power supply to reduce the output of voltage, current, etc., affecting the stable use of electricity and the operation of the work. 2. Generally, when in use, the general intrinsically safe power supply lacks protection for internal electrical components. When the intrinsically safe power supply is in use, its portability needs to be ensured, which means it needs to be moved for use. The internal components lack a safe and stable support structure, which is not conducive to the long-term use of the intrinsically safe power supply and affects its service life. Therefore, we propose an intrinsically safe power supply to solve the problems raised above. Summary of the Invention

[0003] The purpose of the present invention is to provide an intrinsically safe power supply to solve the problems in the above-mentioned background technology, that is, the current intrinsically safe power supply is not conducive to the rapid dissipation of accumulated heat, affects the stable and lasting operation of the intrinsically safe power supply, and cannot reliably and stably install and support electrical components, affecting the service life of the intrinsically safe power supply.

[0004] To achieve the above purpose, the present invention provides the following technical solution: an intrinsically safe power supply, including a housing, the top of the housing is hermetically and fixedly installed with a top cover through fixing bolts, electrical components are installed inside the housing, a handle is installed in the middle of the top surface of the top cover, an inner housing is fitted inside the housing, and the inner space of the inner housing is divided into an installation part and a power connection part by a partition longitudinally integrated on its inner side; Among them, a component fixing frame capable of assisting in heat dissipation of electrical components is fixed inside the installation part, and two groups of such fixing frames are symmetrically arranged inside the inner housing; Among them, a telescopic sealed wiring head for power connection is installed inside the power connection part for power connection use; The bottom surface of the housing is convexly provided with fin plates at equal intervals, and the top surface of the top cover is provided with heat dissipation grooves at equal intervals.

[0005] Furthermore, the fixing frame includes: A first guide rail, which is integrally and fixedly installed on the inner side surface of the inner housing, and a heat-conducting cross brace is connected to the inner side of the first guide rail; A first heat-conducting vertical brace, which is fixedly connected to the inner side of the heat-conducting cross brace, and a heat-conducting pressing block is fixedly installed by pasting on the inner side of the end of the first heat-conducting vertical brace.

[0006] Furthermore, the end of the heat-conducting cross brace is slidably connected to the inner side of the first guide rail, a positioning hole is opened at the end of the heat-conducting cross brace, and the heat-conducting cross brace is fixedly connected to the inner housing through the positioning hole via a positioning screw.

[0007] Furthermore, through grooves are opened in the middle of the heat-conducting cross brace, the first heat-conducting vertical brace and the heat-conducting pressing block, and the heat-conducting cross brace and the first heat-conducting vertical brace are fixedly connected through a connecting bolt passing through the through grooves.

[0008] Further, a fixing block is fixedly connected inside the through groove. A support rod is telescopically connected to the top end of the fixing block. A support plate is integrally provided at the top end of the support rod, and a buffer layer is attached to the surface of the support plate. The bottom end of the support rod is connected to the fixing block through a spring.

[0009] Further, the power connection part includes: A second guide rail fixedly installed on the inner side surface of the inner shell. A fixing plate is slidably connected up and down inside the second guide rail. A mounting plate installed inside the fixing plate, and a sealed wiring head is fixedly installed inside the mounting plate. The end of the sealed wiring head protrudes out of the outer side of the shell in a sealed manner.

[0010] Further, the top end of the fixing plate is fixedly connected to the inner shell, and the fixing plate and the mounting plate are correspondingly engaged. A second heat-conducting vertical support is fixedly installed on the outer side of the mounting plate. A connecting plate protrudes at the end of the second heat-conducting vertical support. The second heat-conducting vertical support, the mounting plate and the fixing plate are fixedly connected.

[0011] Further, the bottom of the shell is detachably installed with a mounting frame. Limit strips are symmetrically and fixedly installed at the bottom end of the shell. The mounting frame and the limit strips are correspondingly slidably engaged and installed. A refrigeration heat exchanger or an integrated fan corresponding to the fin plate is installed inside the mounting frame.

[0012] Further, protection plates are symmetrically arranged at equal intervals on the front and rear sides of the shell. The protection plates are rotatably connected to the outer side of the shell through fixed shafts. A front clamping plate and a rear clamping plate are respectively attached to the outer sides of the protection plates on the front and rear sides. The front clamping plate and the rear clamping plate are fixedly connected through fixing bolts.

[0013] Further, a connecting column protrudes outward at the end of the protection plate. The end of the protection plate is slidably connected through the connecting column inside a through groove opened in the front clamping plate or the rear clamping plate.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects: This intrinsically safe power supply can stably install and support electrical components, can be fixed and buffered, is convenient to carry, avoids damage, can dissipate heat efficiently, and ensures the stable and long-term use of the intrinsically safe power supply. 1. In this solution, a heat-conducting cross brace, a first heat-conducting vertical brace and a heat-conducting pressing block are provided. The heat-conducting cross brace and the first heat-conducting vertical brace are fixed through connecting bolts, and through grooves are opened inside the heat-conducting cross brace, the first heat-conducting vertical brace and the heat-conducting pressing block, so that the position can be adjusted and installed according to the type of the original component, which is convenient for fixing the components. Inside the through slot, a retractable fixing block and a support rod are installed, which can support the components via the support plate, facilitating buffering, maintaining the stable position of the components, avoiding damage, and ensuring long-term use. 2. In this solution, a fixing plate, a mounting plate, and a second heat-conducting vertical support are provided. The fixing plate is slidably connected to the inner side of the second guide rail up and down, facilitating wiring. The sealed wiring head is placed inside the inner shell. After being fixedly combined between the outer shell and the inner shell, the mounting plate is pushed out to complete the fitting of the sealed wiring head with the outer shell, facilitating separate processing, convenient assembly and installation, improving processing efficiency, and reducing production costs. 3. In this solution, fin plates and a protective plate are provided. The end faces of the first heat-conducting vertical support, the heat-conducting pressure block, and the connecting plate are directly snap-fitted into the preset grooves on the contact surface between the outer shell and the top cover through heat-conducting glue, facilitating direct heat conduction, and conveniently increasing the heat dissipation area through the fin plates and the protective plate to ensure heat dissipation. At the same time, a mounting frame can be assembled and installed below the fin plate. By replacing the refrigeration heat exchanger or the integrated fan inside the mounting frame, it is convenient to quickly dissipate heat and ensure the stable and long-term operation of the intrinsically safe power supply. 4. In this solution, a protective plate, connecting columns, a front clamping plate, and a rear clamping plate are provided. The protective plate is rotatably installed on the outer side of the outer shell via a fixed shaft. The end of the protective plate is snap-fitted inside the front clamping plate and the rear clamping plate through the connecting columns. The protective plate is limited by the fixation of the front clamping plate and the rear clamping plate, and the outer shell can be protected vertically or obliquely through the protective plate, thereby preventing the outer shell from bursting from its texture, enhancing its internal explosion-proof performance, and ensuring safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application, form a part of the present application, and the schematic embodiments and descriptions thereof are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings: Figure 1 is the overall axonometric top view structural schematic diagram of the present invention; Figure 2 is the overall axonometric bottom view structural schematic diagram of the present invention; Figure 3 is the front cross-sectional structural schematic diagram of the present invention; Figure 4 is the overall internal structural schematic diagram of the inner shell of the present invention; Figure 5 is the partial connection structural schematic diagram of the first guide rail, the heat-conducting cross support, the first heat-conducting vertical support, and the heat-conducting pressure block of the present invention; Figure 6 is the overall cross-sectional structural schematic diagram of the fixing block and the support rod of the present invention; Figure 7 is the side cross-sectional structural schematic diagram of the present invention; Figure 8Schematic diagram of the overall structure of the second heat-conducting vertical support of the present invention; Figure 9 Schematic diagram of the overall structure of the integrated fan of the present invention.

[0016] In the figure: 1, outer shell; 2, top cover; 3, fixing bolt; 4, handle; 5, inner shell; 6, first guide rail; 7, heat-conducting cross brace; 8, positioning hole; 9, positioning screw; 10, first heat-conducting vertical support; 11, connecting bolt; 12, heat-conducting pressing block; 13, fixing block; 14, support rod; 15, support plate; 16, spring; 17, buffer layer; 18, partition board; 19, second guide rail; 20, fixing plate; 21, mounting plate; 22, second heat-conducting vertical support; 23, connecting plate; 24, sealed terminal; 25, fin; 26, mounting bracket; 27, limiting strip; 28, refrigeration heat exchanger; 29, integrated fan; 30, heat dissipation groove; 31, guard plate; 32, fixed shaft; 33, connecting column; 34, front clamping plate; 35, rear clamping plate; 36, fixing bolt. Specific embodiments

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention, so as to fully understand the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects and implement accordingly. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0018] To solve the problems existing in the prior art, please refer to Figures 1-9 , the present invention provides the following technical solutions: an intrinsically safe power supply, including: outer shell 1, top cover 2, fixing bolt 3, handle 4, inner shell 5, first guide rail 6, heat-conducting cross brace 7, positioning hole 8, positioning screw 9, first heat-conducting vertical support 10, connecting bolt 11, heat-conducting pressing block 12, fixing block 13, support rod 14, support plate 15, spring 16, buffer layer 17, partition board 18, second guide rail 19, fixing plate 20, mounting plate 21, second heat-conducting vertical support 22, connecting plate 23, sealed terminal 24, fin 25, mounting bracket 26, limiting strip 27, refrigeration heat exchanger 28, integrated fan 29, heat dissipation groove 30, guard plate 31, fixed shaft 32, connecting column 33, front clamping plate 34, rear clamping plate 35, fixing bolt 36; Among them: as in Figure 1 and Figure 2 , the top end of the outer shell 1 is hermetically and fixedly installed with a top cover 2 through a fixing bolt 3. Electrical components are installed inside the outer shell 1. In the middle of the top end surface of the top cover 2, a handle 4 is installed. An inner shell 5 is attached and arranged inside the outer shell 1, and all the electrical components are arranged inside the inner shell 5.

[0019] In a specific application scenario, the outer shell 1 and the top cover 2 are fixed to form the outer shell of the intrinsically safe power supply. Through the sealing structure on the outside, dust is prevented from entering and causing an electrostatic reaction, ensuring the stable use of the intrinsically safe power supply. An inner shell 5 is added inside the outer shell 1 to form a double-layer structure, which can increase its impact resistance and protect the internal electrical components.

[0020] Adopting the above technical solution: it can enhance the protection ability, facilitate the carrying and use of the intrinsically safe power supply, and ensure the stable use of the intrinsically safe power supply.

[0021] Among them: as Figure 1 , Figure 3 , Figure 4 and Figure 5 , the internal space of the inner shell 5 is divided into an installation part and a power connection part by a partition 18 longitudinally integrated on its inner side. Inside the installation part, a component fixing frame that can assist in the heat dissipation of electrical components is fixed. Two groups of such fixing frames are symmetrically arranged inside the inner shell 5; the fixing frame includes: a first guide rail 6 and a first heat-conducting vertical strut 10. The first guide rail 6 is integrally fixed and installed on the inner side surface of the inner shell 5. The inner side of the first guide rail 6 is connected with a heat-conducting cross strut 7. The first heat-conducting vertical strut 10 is fixedly connected to the inner side of the heat-conducting cross strut 7. Inside the end of the first heat-conducting vertical strut 10, a heat-conducting pressing block 12 is fixedly installed by pasting. The end of the heat-conducting cross strut 7 is slidably connected to the inner side of the first guide rail 6. A positioning hole 8 is opened at the end of the heat-conducting cross strut 7, and the heat-conducting cross strut 7 is fixedly connected to the inner shell 5 through the positioning hole 8 via a positioning screw 9. Through grooves are opened in the middle of the heat-conducting cross strut 7, the first heat-conducting vertical strut 10, and the heat-conducting pressing block 12. The heat-conducting cross strut 7 and the first heat-conducting vertical strut 10 are fixedly connected through a connecting bolt 11 passing through the through grooves.

[0022] In a specific application scenario, the inner part of the inner shell 5 is divided into left and right sides by the partition 18, which is convenient for separating electrical components and power connection terminals. Inside the installation part, the heat-conducting cross strut 7 can slide up and down on the inner side of the first guide rail 6 to adjust its installation position. At the same time, the heat-conducting cross strut 7 and the first heat-conducting vertical strut 10 are fixed through a connecting bolt 11, which can adjust the position for installation according to the type of components, facilitating the limiting use of components and ensuring the stable installation of components.

[0023] Adopting the above technical solution, it is convenient and stable to fix components, can separate components from terminal blocks, reduce damage during wiring, and extend the service life of the intrinsically safe power supply.

[0024] Among them: as Figure 5 and Figure 6 , a fixing block 13 is fixedly connected inside the through groove. The top of the fixing block 13 is telescopically connected with a support rod 14. The top of the support rod 14 is integrally provided with a support plate 15, and a buffer layer 17 is attached to the surface of the support plate 15. The bottom of the support rod 14 is connected to the fixing block 13 through a spring 16.

[0025] In a specific application scenario, the bottom of the fixed block 13 is fixedly adhered to the inner position of the through groove by a heat-conducting adhesive, so that the fixed block 13 can support the components through the support rod 14 and the support plate 15, and is convenient for buffering through the spring 16. When the intrinsically safe power supply is carried or impacted, it can be stably limited and buffered to reduce damage.

[0026] Adopting the above technical solution: it can stably maintain the support and limit use for the components, can buffer the components, and ensure the long-term use of the intrinsically safe power supply.

[0027] Among them: as Figure 3 , Figure 4 , Figure 7 and Figure 8 In, a retractable sealed terminal 24 for power connection is installed inside the power connection part; the power connection part includes: a second guide rail 19 and a mounting plate 21. The second guide rail 19 is fixedly installed on the inner side surface of the inner shell 5. The inner side of the second guide rail 19 is slidably connected up and down with a fixing plate 20. The mounting plate 21 is installed inside the fixing plate 20, and the sealed terminal 24 is fixedly installed inside the mounting plate 21. The end of the sealed terminal 24 is hermetically protruded outside the outer shell 1. The top end of the fixing plate 20 is fixedly connected to the inner shell 5, and the fixing plate 20 and the mounting plate 21 are correspondingly engaged. A second heat-conducting vertical support 22 is fixedly installed on the outer side of the mounting plate 21. A connecting plate 23 is protruded at the end of the second heat-conducting vertical support 22. The second heat-conducting vertical support 22, the mounting plate 21 and the fixing plate 20 are fixedly connected.

[0028] In a specific application scenario, the power connection part is separated by a partition plate 18. The fixing plate 20 can be adjusted up and down through the second guide rail 19, and the mounting plate 21 is engaged and installed inside the fixing plate 20. The sealed terminal 24 is inserted and fixed inside the mounting plate 21 for convenient wiring. During actual installation, after the outer shell 1 and the inner shell 5 are fixedly combined, the mounting plate 21 and the sealed terminal 24 are slidably engaged into the inside of the fixing plate 20, and the sealed terminal 24 is protruded outside the outer shell 1 for wiring use. The mounting plate 21 and the second heat-conducting vertical support 22 are fixed on the outer side of the fixing plate 20 by screws and can be stably fixed. At the same time, the end faces of the first heat-conducting vertical support 10, the heat-conducting pressing block 12 and the connecting plate 23 are correspondingly engaged with the contact surfaces of the outer shell 1 and the top cover 2, and heat dissipation can be carried out.

[0029] Among them, as Figure 1 , Figure 2 , Figure 3 , Figure 7 and Figure 9Among them, the bottom surface of the outer shell 1 is provided with wing plates 25 protruding at equal intervals, the top surface of the top cover 2 is provided with heat dissipation grooves 30 at equal intervals, the bottom of the outer shell 1 is detachably installed with a mounting frame 26, the bottom end of the outer shell 1 is symmetrically and fixedly installed with limit strips 27, and the mounting frame 26 and the limit strips 27 are slidably and snap-fitted with each other. A refrigeration heat exchanger 28 or an integrated fan 29 corresponding to the wing plates 25 up and down is installed inside the mounting frame 26.

[0030] In a specific application scenario, the mounting frame 26 is disassembled and assembled by engaging with the limit strips 27, and the middle part of the mounting frame 26 can be replaced with a refrigeration heat exchanger 28 or an integrated fan 29 in a modular manner, which is convenient for dissipating heat from the wing plates 25, so as to dissipate heat from the internal components, reduce the heat dissipation through the opening of the intrinsically safe power supply, and improve the safety of the intrinsically safe power supply.

[0031] By adopting the above technical solution, heat dissipation can be carried out stably and quickly, ensuring the stable and long-term use of the intrinsically safe power supply.

[0032] Among them: such as Figure 1 , Figure 2 , Figure 3 and Figure 7 Among them, the front and rear sides of the outer shell 1 are symmetrically provided with guard plates 31 at equal intervals. The guard plates 31 are rotatably connected to the outside of the outer shell 1 through fixed shafts 32. The outer sides of the guard plates 31 on the front and rear sides are respectively provided with a front clamping plate 34 and a rear clamping plate 35. The front clamping plate 34 and the rear clamping plate 35 are fixedly connected through fixing bolts 36. The end of the guard plate 31 is provided with a connecting column 33 protruding outward. The end of the guard plate 31 is slidably connected to a through groove opened inside the front clamping plate 34 or the rear clamping plate 35 through the connecting column 33.

[0033] In a specific application scenario, the guard plates 31 are rotatably installed on the outside of the outer shell 1 through the fixed shafts 32. The ends of the guard plates 31 are clamped inside the front clamping plate 34 and the rear clamping plate 35 through the connecting columns 33. The guard plates 31 are limited by the fixation of the front clamping plate 34 and the rear clamping plate 35. At the same time, the guard plates 31 are arranged at equal intervals and can be used for unified angle protection. The outer shell 1 can be protected vertically or obliquely through the guard plates 31, thereby preventing the internal electric spark of the outer shell 1 from bursting out from its texture, enhancing its internal explosion-proof performance, and ensuring safety.

[0034] By adopting the above technical solution, the overall structural strength of the intrinsically safe power supply can be enhanced, the explosion-proof performance can be enhanced, and the safety level can be improved.

[0035] Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention; the content not described in detail in this specification belongs to the prior art well-known to those of ordinary skill in the art. In addition, the orientation terms such as up, down, left, right, front, and back in the text only represent their relative positions rather than absolute positions.

[0036] All the standard parts used in the present invention can be purchased from the market. The special-shaped parts can be customized according to the descriptions in the specification and the attached drawings. The specific connection manners of all the parts adopt the conventional means such as bolts, rivets, welding, etc. which are mature in the prior art. The machines, parts and equipment all adopt the conventional models in the prior art. In addition, the circuit connection adopts the conventional connection manner in the prior art, which will not be elaborated herein.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacement on some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An intrinsically safe power supply, comprising a housing (1), the top end of the housing (1) is hermetically and fixedly installed with a top cover (2) through fixing bolts (3), electrical components are installed inside the housing (1), and a handle (4) is installed in the middle of the top surface of the top cover (2), characterized in that: An inner shell (5) is fitted inside the outer shell (1). The inner space of the inner shell (5) is divided into an installation part and a power connection part by a partition board (18) integrally arranged longitudinally on its inner side. Among them, a component fixing frame capable of assisting in heat dissipation of electrical components is fixed inside the installation part, and two groups of such fixing frames are symmetrically arranged inside the inner shell (5). Among them, a retractable sealed wiring head (24) is installed inside the power connection part for power connection. The bottom surface of the outer shell (1) is provided with wing plates (25) protruding at equal intervals, and the top surface of the top cover (2) is provided with heat dissipation grooves (30) at equal intervals.

2. The intrinsically safe power supply according to claim 1, characterized in that: The fixing frame includes: A first guide rail (6), the first guide rail (6) is integrally and fixedly installed on the inner side surface of the inner shell (5), and a heat-conducting cross brace (7) is connected to the inner side of the first guide rail (6). A first heat-conducting vertical brace (10), the first heat-conducting vertical brace (10) is fixedly connected to the inner side of the heat-conducting cross brace (7), and a heat-conducting pressing block (12) is fixedly installed by pasting on the inner side of the end of the first heat-conducting vertical brace (10).

3. The intrinsically safe power supply according to claim 2, characterized in that: The end of the heat-conducting cross brace (7) is slidably connected to the inner side of the first guide rail (6). A positioning hole (8) is opened at the end of the heat-conducting cross brace (7), and the heat-conducting cross brace (7) is fixedly connected to the inner shell (5) through the positioning hole (8) via a positioning screw (9).

4. The intrinsically safe power supply according to claim 2, characterized in that: Through grooves are opened in the middle of the heat-conducting cross brace (7), the first heat-conducting vertical brace (10), and the heat-conducting pressing block (12). The heat-conducting cross brace (7) and the first heat-conducting vertical brace (10) are fixedly connected through a connecting bolt (11) passing through the through grooves.

5. The intrinsically safe power supply according to claim 4, characterized in that: A fixing block (13) is fixedly connected inside the through groove. A support rod (14) is telescopically connected to the top end of the fixing block (13). A support plate (15) is integrally arranged at the top end of the support rod (14), and a buffer layer (17) is attached to the surface of the support plate (15). The bottom end of the support rod (14) is connected to the fixing block (13) through a spring (16).

6. The intrinsically safe power supply according to claim 1, wherein: The power connection part includes: A second guide rail (19), the second guide rail (19) is fixedly installed on the inner side surface of the inner shell (5), and a fixing plate (20) is slidably connected up and down on the inner side of the second guide rail (19). A mounting plate (21), the mounting plate (21) is installed inside the fixing plate (20), and a sealed wiring head (24) is fixedly installed inside the mounting plate (21). The end of the sealed wiring head (24) protrudes out of the outer shell (1) in a sealed manner.

7. An intrinsically safe power supply according to claim 6, characterized in that: The top end of the fixing plate (20) is fixedly connected to the inner shell (5), and the fixing plate (20) and the mounting plate (21) are correspondingly engaged. A second heat-conducting vertical brace (22) is fixedly installed on the outside of the mounting plate (21). A connecting plate (23) protrudes from the end of the second heat-conducting vertical brace (22). The second heat-conducting vertical brace (22), the mounting plate (21), and the fixing plate (20) are fixedly connected.

8. A intrinsically safe power supply according to claim 1, characterized in that: The bottom of the housing (1) is detachably installed with a mounting frame (26). The bottom end of the housing (1) is symmetrically and fixedly installed with limiting strips (27). The mounting frame (26) and the limiting strips (27) are slidably and snap-fitted correspondingly. A refrigeration heat exchanger (28) or an integrated fan (29) corresponding to the fin plate (25) is installed inside the mounting frame (26).

9. An intrinsically safe power supply according to claim 1, characterized in that: The front and rear sides of the housing (1) are symmetrically provided with guard plates (31) at equal intervals. The guard plates (31) are rotatably connected to the outside of the housing (1) through fixed shafts (32). A front clamping plate (34) and a rear clamping plate (35) are respectively attached to the outside of the guard plates (31) on the front and rear sides. The front clamping plate (34) and the rear clamping plate (35) are fixedly connected through a fixing bolt (36).

10. An intrinsically safe power supply according to claim 9, characterized in that: The end of the guard plate (31) is provided with a connecting column (33) protruding outward. The end of the guard plate (31) is slidably connected through the connecting column (33) in a through groove formed inside the front clamping plate (34) or the rear clamping plate (35).

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