An intrinsically safe power supply

Abstract

The present invention discloses an intrinsically safe power supply, comprising a housing, a top cover being fixedly and sealed on the top of the housing by fixing bolts, electrical components being installed inside the housing, a handle being installed in the middle of the top surface of the top cover, an inner housing being fitted inside the housing, the inner space of the inner housing being divided into a mounting portion and a power connection portion by a partition provided longitudinally and integrally on the inner side thereof; wherein a component fixing frame capable of assisting the heat dissipation of the electrical components is fixed inside the mounting portion, and two groups of the fixing frames are symmetrically provided inside the inner housing; wherein a retractable sealed terminal for power connection is installed inside the power connection portion; and fins are provided protruding at equal intervals on the bottom surface of the housing. This intrinsically safe power supply can stably mount and support electrical components, can be fixed and buffered, is easy to carry, avoids damage, and can efficiently dissipate heat, thereby ensuring stable and long-lasting use of the intrinsically safe power supply.

Description

Technical Field

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

[0002] Intrinsically safe power supply refers to an intrinsically safe power supply. It is an electrical device designed for use in flammable and explosive environments. It is widely used in hazardous places such as coal mines, petroleum, and chemical industries, or for emergency use. It can avoid explosions and provide stable power supply.

[0003] For example, the patent with application number 202411342174.6 discloses a multi-channel power supply box for explosion-proof and intrinsically safe use in mines, which relates to the technical field of mechanical processing. The multi-channel power supply box for explosion-proof and intrinsically safe use in mines 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 hingedly connected to an explosion-proof door. A top external connection box is provided directly above the box body, and external connection pipes are symmetrically connected on both sides of the top external connection box. A ventilation mechanism is provided on one side of the box body, and the ventilation mechanism circulates and replaces the interior of the box body, thereby preventing the humid gas in the mining environment from corroding the electrical components, thereby ensuring the stability of the operation and connection of the electrical components. Fasteners are connected at equal intervals inside the box body. When the equipment is in operation, the oil is injected into the interior of the transformer chamber again through the circulation pump, thereby taking away the heat generated by the operation of the equipment inside the transformer chamber, and effectively using the waste heat of the heated cooling oil to dry the filter element, thereby improving energy efficiency.

[0004] For example, the patent application number 201911425089.5 discloses an intrinsically safe power supply box for mining. In actual application, a carbon fiber plate is coated on the outside of the side walls and bottom wall of the protective box body; a sandwich is formed between the carbon fiber plate and the protective box body; and a filling material is filled in the sandwich. This fully protects the power supply box, and utilizes sliders, rails, and limit blocks to protect the intrinsically safe power supply disposed in the power supply box to prevent damage to the intrinsically safe power supply during transportation. One end of the heat-conducting metal rod is connected to the intrinsically safe power supply, and the other end is connected to the carbon fiber plate. This improves the heat dissipation function of the intrinsically safe power supply box.

[0005] However, combined with the actual use of intrinsically safe power supplies, the current intrinsically safe power supplies still have certain disadvantages when used, specifically:

[0006] 1. The intrinsically safe power supply uses internal heat sink fins for heat dissipation. During long-term use, it is difficult to ensure that the heat accumulated inside the intrinsically safe power supply is quickly dissipated, which is not conducive to maintaining the long-term stable operation of the intrinsically safe power supply. The intrinsically safe power supply needs to reduce the output of voltage and current, affecting the stable use of electricity and affecting the operation;

[0007] 2. General intrinsically safe power supplies lack protection for internal electrical components when in use. When using an intrinsically safe power supply, it is necessary to ensure its portability, which means that it needs to be moved for use. Its internal components lack a safe and stable supporting structure, which is not conducive to the long-term use of the intrinsically safe power supply and affects its service life;

[0008] Therefore, we propose an intrinsically safe power supply to solve the above problems. Summary of the Invention

[0009] The object of the present invention is to provide an intrinsically safe power supply to solve the problems raised in the above-mentioned background technology, namely, that the current intrinsically safe power supply is not conducive to the rapid dissipation of accumulated heat, which affects the stable and long-term operation of the intrinsically safe power supply, and cannot reliably and stably support the installation of electrical components, which affects the service life of the intrinsically safe power supply.

[0010] To achieve the above-mentioned object, the present invention provides the following technical solution: an intrinsically safe power supply, comprising a housing, a top cover being sealed and fixedly mounted on the top end of the housing by fixing bolts, an electrical component being mounted inside the housing, a handle being mounted in the middle of the top end of the top cover, an inner housing being closely mounted inside the housing, the interior space of the inner housing being divided into a mounting portion and a power connection portion by a partition provided longitudinally and integrally on the inner side of the inner housing;

[0011] The interior of the mounting portion is fixed with a component fixing frame that can assist in heat dissipation of the electrical components. Two groups of the fixing frames are symmetrically arranged inside the inner shell.

[0012] Among them, a retractable sealed terminal is installed inside the power connection part for power connection;

[0013] The bottom surface of the shell is provided with fin plates protruding at equal intervals, and the top surface of the top cover is provided with heat dissipation grooves at equal intervals.

[0014] Furthermore, the fixing frame includes:

[0015] A first guide rail, the first guide rail is integrally fixedly mounted on the inner side of the inner shell, and the inner side of the first guide rail is connected to a heat-conducting cross brace;

[0016] The first heat-conducting vertical support is fixedly connected to the inner side of the heat-conducting horizontal support, and a heat-conducting pressing block is fixedly installed on the inner side of the end of the first heat-conducting vertical support.

[0017] 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 shell through the positioning hole via a positioning screw.

[0018] Furthermore, the middle parts of the heat-conducting horizontal support, the first heat-conducting vertical support and the heat-conducting pressure block are all provided with through grooves, and the heat-conducting horizontal support and the first heat-conducting vertical support are fixedly connected by connecting bolts passing through the through grooves.

[0019] Furthermore, a fixed block is fixedly connected to the inside of the through slot, the top of the fixed block is telescopically connected to a support rod, the top of the support rod is integrated with a support plate, and a buffer layer is attached to the surface of the support plate, and the bottom end of the support rod is connected to the fixed block through a spring.

[0020] Furthermore, the power connection unit includes:

[0021] A second guide rail, the second guide rail is fixedly mounted on the inner side of the inner shell, and a fixing plate is slidably connected to the inner side of the second guide rail.

[0022] The mounting plate is mounted on the inner side of the fixing plate, and a sealing terminal is fixedly mounted inside the mounting plate, wherein the end of the sealing terminal is sealed and protrudes from the outer side of the housing.

[0023] Furthermore, 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, and a connecting plate is protruding from 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.

[0024] Furthermore, a mounting bracket is detachably mounted on the bottom of the shell, a limit bar is symmetrically fixedly mounted on the bottom end of the shell, the mounting bracket and the limit bar are correspondingly slidably engaged with each other, and a refrigeration heat exchanger or integrated fan corresponding to the upper and lower fins is installed inside the mounting bracket.

[0025] Furthermore, the front and rear sides of the shell are symmetrically provided with guard plates at equal intervals, and the guard plates are rotatably connected to the outside of the shell through a fixed axis. The outsides of the front and rear guard plates are respectively fitted with front and rear splints, and the front and rear splints are fixedly connected by fixing bolts.

[0026] Furthermore, the end of the guard plate is provided with a connecting column protruding outward, and the end of the guard plate is slidably connected to a through groove opened inside the front splint or the rear splint through the connecting column.

[0027] Compared with the prior art, the present invention has at least the following beneficial effects: the intrinsically safe power supply can stably install and support electrical components, can be fixed and buffered, is easy to carry, avoids damage, can efficiently dissipate heat, and ensures stable and long-term use of the intrinsically safe power supply;

[0028] 1. This solution is provided with a heat-conducting horizontal brace, a first heat-conducting vertical brace, and a heat-conducting pressing block. The heat-conducting horizontal brace and the first heat-conducting vertical brace are fixed via connecting bolts. The heat-conducting horizontal brace, the first heat-conducting vertical brace, and the heat-conducting pressing block are all provided with through grooves, which can be adjusted and installed according to the type of components, making it easier to fix the components.

[0029] At the same time, the interior of the through slot is equipped with retractable fixed blocks and support rods, which can support the components through the support plate, facilitate buffering, and help maintain the position of the components stable, avoid damage, and ensure long-term use;

[0030] 2. This solution is provided with a fixing plate, a mounting plate, and a second heat-conducting vertical support. The fixing plate is connected to the inner side of the second guide rail by sliding up and down, which facilitates wiring. The sealed terminal is placed inside the inner shell. After being fixed between the outer shell and the inner shell, the mounting plate is pushed out to complete the bonding of the sealed terminal and the outer shell. This facilitates separate processing, facilitates assembly and installation, improves processing efficiency, and reduces production costs.

[0031] 3. This solution is equipped with fins and guard plates. The end faces of the first heat-conducting vertical support, heat-conducting pressure block, and connecting plate are directly mounted in the preset grooves on the contact surface of the shell and the top cover through thermal adhesive, which facilitates direct heat conduction and increases the heat dissipation area through the fins and guard plates to ensure heat dissipation.

[0032] At the same time, the fin plate can be assembled under the mounting frame, through the mounting frame to replace the cooling heat exchanger or integrated fan, to facilitate the rapid use of heat dissipation, to ensure the stable and long-term operation of the intrinsically safe power supply;

[0033] 4. This solution is provided with a guard plate, a connecting column, a front splint and a rear splint. The guard plate is rotatably installed on the outside of the shell via a fixed shaft, and the end of the guard plate is clamped on the inner side of the front splint and the rear splint through the connecting column. The guard plate is limited by the fixing of the front splint and the rear splint. The guard plate can be vertically or tilted to increase protection for the shell, thereby preventing the shell from exploding from its texture, enhancing its internal explosion-proof performance, and ensuring safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0035] Figure 1 This is a schematic diagram of the overall top view of the shaft side of the present invention;

[0036] Figure 2 This is a schematic diagram of the overall structure of the present invention from an axial side when viewed from above;

[0037] Figure 3 This is a schematic diagram of the front cross-sectional structure of the present invention;

[0038] Figure 4 Schematic diagram of the overall internal structure of the inner shell of the present invention;

[0039] Figure 5 Schematic diagram of the partial connection structure of the first guide rail, the heat-conducting horizontal support, the first heat-conducting vertical support and the heat-conducting pressing block of the present invention;

[0040] Figure 6 This is a schematic diagram of the overall cross-sectional structure of the fixing block and the support rod of the present invention;

[0041] Figure 7 This is a schematic diagram of the side cross-section structure of the present invention;

[0042] Figure 8 This is a schematic diagram of the overall structure of the second heat-conducting vertical support of the present invention;

[0043] Figure 9 This is a schematic diagram of the overall structure of the integrated fan of the present invention.

[0044] In the figure: 1. outer shell; 2. top cover; 3. fixing bolt; 4. handle; 5. inner shell; 6. first guide rail; 7. thermal cross brace; 8. positioning hole; 9. positioning screw; 10. first thermal vertical brace; 11. connecting bolt; 12. thermal pressure block; 13. fixing block; 14. support rod; 15. support plate; 16. spring; 17. buffer layer; 18. partition; 19. second guide rail; 20. fixing plate; 21. mounting plate; 22. second thermal vertical brace; 23. connecting plate; 24. sealing terminal; 25. fin plate; 26. mounting frame; 27. limit strip; 28. refrigeration heat exchanger; 29. integrated fan; 30. heat sink; 31. guard plate; 32. fixing shaft; 33. connecting column; 34. front splint; 35. rear splint; 36. fixing bolt. DETAILED DESCRIPTION

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention, so that the implementation process of how this application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0046] In order to solve the problems existing in the prior art, please refer to Figure 1-9The present invention provides the following technical solutions: an intrinsically safe power supply, comprising: an outer shell 1, a top cover 2, a fixing bolt 3, a handle 4, an inner shell 5, a first guide rail 6, a heat-conducting horizontal brace 7, a positioning hole 8, a positioning screw 9, a first heat-conducting vertical brace 10, a connecting bolt 11, a heat-conducting pressure block 12, a fixing block 13, a support rod 14, a support plate 15, a spring 16, a buffer layer 17, a partition 18, a second guide rail 19, a fixing plate 20, a mounting plate 21, a second heat-conducting vertical brace 22, a connecting plate 23, a sealing terminal 24, a fin plate 25, a mounting frame 26, a limiting strip 27, a refrigeration heat exchanger 28, an integrated fan 29, a heat dissipation slot 30, a guard plate 31, a fixing shaft 32, a connecting column 33, a front splint 34, a rear splint 35, and a fixing bolt 36;

[0047] Among them: Figure 1 and Figure 2 In the figure, a top cover 2 is sealed and fixed on the top of the outer shell 1 by fixing bolts 3, electrical components are installed inside the outer shell 1, a handle 4 is installed in the middle of the top surface of the top cover 2, an inner shell 5 is fitted inside the outer shell 1, and electrical components are all arranged inside the inner shell 5.

[0048] 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. The outer sealing structure prevents dust from entering and causing electrostatic reactions, thereby 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 internal electrical components.

[0049] The above technical solution can enhance the protection capability, facilitate the portability of the intrinsically safe power supply, and ensure the stable use of the intrinsically safe power supply.

[0050] Among them: Figure 1 、 Figure 3 、 Figure 4 and Figure 5 In the embodiment, the internal space of the inner shell 5 is divided into an installation part and a power connection part by a partition 18 integrated in the inner side thereof. A component fixing frame capable of assisting the heat dissipation of the electrical components is fixed inside the installation part. The fixing frame is symmetrically arranged in two groups inside the inner shell 5. The fixing frame includes: a first guide rail 6 and a first heat-conducting vertical support 10. The first guide rail 6 is integrally fixedly installed on the inner side of the inner shell 5. The inner side of the first guide rail 6 is connected to a heat-conducting horizontal support 7. The first heat-conducting vertical support 10 is fixedly connected to the heat-conducting horizontal support. 7, a heat-conducting pressure block 12 is pasted and fixed on the inner side of the end of the first heat-conducting vertical support 10, and 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 provided 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 via a positioning screw 9 through the positioning hole 8. A through groove is provided in the middle of the heat-conducting cross brace 7, the first heat-conducting vertical support 10 and the heat-conducting pressure block 12, and the heat-conducting cross brace 7 and the first heat-conducting vertical support 10 are fixedly connected by a connecting bolt 11 passing through the through groove.

[0051] In a specific application scenario, the interior of the inner shell 5 is divided into left and right sides by the partition 18, which is convenient for separating the electrical components and the power connection terminals. The interior of the installation part can slide the thermal cross brace 7 up and down on the inner side of the first guide rail 6 to adjust its installation position. At the same time, the thermal cross brace 7 and the first thermal vertical brace 10 are fixed by a connecting bolt 11, and the position can be adjusted and installed according to the component type, which is convenient for limiting the use of components and ensuring stable installation of components.

[0052] The above technical solution can be used to conveniently and stably fix the components, separate the components from the wiring terminals, reduce damage during wiring, and extend the service life of the intrinsically safe power supply.

[0053] Among them: Figure 5 and Figure 6 In the figure, a fixed block 13 is fixedly connected to the inside of the through slot, and a support rod 14 is telescopically connected to the top of the fixed block 13. A support plate 15 is integrated with the top 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 fixed block 13 through a spring 16.

[0054] In a specific application scenario, the bottom of the fixed block 13 is fixed to the internal position of the through groove by means of thermal conductive 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, so that the intrinsically safe power supply can be carried or collided to provide stable limitation and buffering to reduce damage.

[0055] The above technical solution can stably maintain the support and limit use of components, can buffer the components, and ensure the long-term use of the intrinsically safe power supply.

[0056] Among them: Figure 3 、 Figure 4 、 Figure 7 and Figure 8 In the figure, a retractable sealed terminal head 24 is installed inside the power connection part for power connection; 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 of the inner shell 5, and the inner side of the second guide rail 19 is connected to the fixed plate 20 for sliding up and down, the mounting plate 21 is installed on the inner side of the fixed plate 20, and the sealing terminal head 24 is fixedly installed inside the mounting plate 21, and the end of the sealing terminal head 24 is sealed and protrudes from the outside of the outer shell 1, the top of the fixed plate 20 is fixedly connected to the inner shell 5, and the fixed plate 20 and the mounting plate 21 are correspondingly engaged, and a second heat-conducting vertical support 22 is fixedly installed on the outside of the mounting plate 21, and a connecting plate 23 is protruding from the end of the second heat-conducting vertical support 22, the second heat-conducting vertical support 22, the mounting plate 21 and the fixed plate 20 are fixedly connected.

[0057] In a specific application scenario, the power connection part is separated by the partition 18, and the fixing plate 20 can be adjusted up and down and installed by the second guide rail 19, and the mounting plate 21 is snap-fitted and installed inside the fixing plate 20, and the sealing terminal head 24 is inserted and fixed inside the mounting plate 21 to facilitate wiring. During actual installation, after the outer shell 1 and the inner shell 5 are compositely fixed, the mounting plate 21 and the sealing terminal head 24 are snap-fitted and slid to the inside of the fixing plate 20, and the sealing terminal head 24 protrudes from the outside of the outer shell 1 for wiring. The mounting plate 21 and the second thermal conductive vertical support 22 are fixed to the outside of the fixing plate 20 by screws and can be stably fixed for use. At the same time, the end faces of the first thermal conductive vertical support 10, the thermal conductive pressure block 12 and the connecting plate 23 are snap-fitted with the contact surfaces of the outer shell 1 and the top cover 2, and can be used for heat dissipation.

[0058] Among them, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 7 and Figure 9 In the figure, fins 25 are protruded at equal intervals on the bottom surface of the shell 1, and heat dissipation grooves 30 are opened at equal intervals on the top surface of the top cover 2. The bottom of the shell 1 is detachably mounted with a mounting bracket 26, and a limit bar 27 is symmetrically fixedly mounted on the bottom end of the shell 1. The mounting bracket 26 and the limit bar 27 are correspondingly slidably engaged with each other, and a refrigeration heat exchanger 28 or an integrated fan 29 corresponding to the upper and lower sides of the fins 25 is installed inside the mounting bracket 26.

[0059] In a specific application scenario, the mounting bracket 26 can be disassembled and assembled by engaging with the limit bar 27, and the middle part of the mounting bracket 26 can be assembled with a replacement refrigeration heat exchanger 28 or an integrated fan 29 to facilitate heat dissipation of the fin plate 25, so as to facilitate heat dissipation of internal components, reduce the heat dissipation of the intrinsically safe power supply opening, and improve the safety of the intrinsically safe power supply.

[0060] The above technical solution can achieve stable and rapid heat dissipation, ensuring stable and long-term use of the intrinsically safe power supply.

[0061] Among them: Figure 1 、 Figure 2 、 Figure 3 and Figure 7 In the figure, guard plates 31 are symmetrically arranged on the front and rear sides of the shell 1 at equal intervals. The guard plates 31 are rotatably connected to the outside of the shell 1 through a fixed shaft 32. The outsides of the front and rear guard plates 31 are respectively fitted with a front splint 34 and a rear splint 35. The front splint 34 and the rear splint 35 are fixedly connected by a fixing bolt 36. The end of the guard plate 31 is protruding outward and is provided with a connecting column 33. The end of the guard plate 31 is slidably connected to the through groove opened inside the front splint 34 or the rear splint 35 through the connecting column 33.

[0062] In a specific application scenario, the guard plate 31 is rotatably installed on the outside of the shell 1 via the fixed shaft 32, and the end of the guard plate 31 is clamped on the inner side of the front splint 34 and the rear splint 35 through the connecting column 33. The guard plate 31 is limited by the fixation of the front splint 34 and the rear splint 35. At the same time, the guard plates 31 are arranged at equal intervals, and can be used for uniform angle protection. The guard plate 31 can be used to increase protection for the shell 1 vertically or tilted, thereby preventing electric sparks inside the shell 1 from exploding outward from its texture, enhancing its internal explosion-proof performance, and ensuring safety.

[0063] The adoption of the above technical solution can enhance the overall structural strength of the intrinsically safe power supply, enhance the explosion-proof performance and improve the safety level.

[0064] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of the present invention; the contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field. In addition, the directional nouns such as up, down, left, right, front, and back in the text only represent their relative positions rather than absolute positions.

[0065] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0066] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An intrinsically safe power supply, comprising a housing (1), a top cover (2) being fixedly and sealedly mounted on the top of the housing (1) by fixing bolts (3), electrical components being mounted inside the housing (1), and a handle (4) being mounted on the middle portion of the top surface of the top cover (2), characterized in that: An inner shell (5) is fitted inside the outer shell (1), and the inner space of the inner shell (5) is divided into a mounting portion and a power connection portion via a partition (18) integrally provided longitudinally on the inner side thereof; A component fixing frame capable of assisting the heat dissipation of the electrical components is fixed inside the mounting portion, and two groups of the fixing frames are symmetrically arranged inside the inner shell (5); A retractable sealed terminal (24) is installed inside the power connection portion for connecting to electricity; The bottom surface of the housing (1) is provided with fins (25) protruding at equal intervals, and the top surface of the top cover (2) is provided with heat dissipation grooves (30) at equal intervals; The fixed frame comprises: a first guide rail (6) and a first heat-conducting vertical support (10); the first guide rail (6) is integrally fixedly mounted on the inner side of the inner shell (5); the inner side of the first guide rail (6) is connected to a heat-conducting horizontal support (7); the first heat-conducting vertical support (10) is fixedly connected to the inner side of the heat-conducting horizontal support (7); and a heat-conducting pressing block (12) is glued and fixedly mounted on the inner side of the end of the first heat-conducting vertical support (10); 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 provided 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) via a positioning screw (9) through the positioning hole (8); The heat-conducting horizontal support (7), the first heat-conducting vertical support (10) and the heat-conducting pressure block (12) are all provided with through grooves in their middle parts, and the heat-conducting horizontal support (7) and the first heat-conducting vertical support (10) are fixedly connected via a connecting bolt (11) passing through the through grooves; The end surfaces of the first heat-conducting vertical support (10) and the heat-conducting pressing block (12) are correspondingly engaged with the contact surfaces of the outer shell (1) and the top cover (2).

2. The intrinsically safe power supply according to claim 1, characterized in that: A fixing block (13) is fixedly connected to the interior of the through slot, a top end of the fixing block (13) is telescopically connected to a support rod (14), a support plate (15) is integrally provided at the top end of the support rod (14), and a buffer layer (17) is attached to the surface of the support plate (15), and the bottom end of the support rod (14) is connected to the fixing block (13) via a spring (16).

3. The intrinsically safe power supply according to claim 1, characterized in that: The power connection unit includes: A second guide rail (19), the second guide rail (19) is fixedly mounted on the inner side of the inner shell (5), and a fixing plate (20) is slidably connected to the inner side of the second guide rail (19); The mounting plate (21) is mounted on the inner side of the fixing plate (20), and a sealing terminal (24) is fixedly mounted inside the mounting plate (21), and the end of the sealing terminal (24) seals and protrudes from the outer side of the housing (1).

4. The intrinsically safe power supply according to claim 3, 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 support (22) is fixedly installed on the outer side of the mounting plate (21). A connecting plate (23) is protruding from 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.

5. The intrinsically safe power supply according to claim 1, wherein: The bottom of the housing (1) is detachably mounted with a mounting frame (26), the bottom end of the housing (1) is symmetrically fixed with a limit strip (27), the mounting frame (26) and the limit strip (27) are correspondingly slidably engaged with each other, and a refrigeration heat exchanger (28) or an integrated fan (29) corresponding to the upper and lower sides of the fin plate (25) is mounted inside the mounting frame (26).

6. The intrinsically safe power supply according to claim 1, characterized in that: Guard plates (31) are symmetrically arranged at equal intervals on the front and rear side surfaces of the housing (1). The guard plates (31) are rotatably connected to the outer side of the housing (1) via a fixed shaft (32). A front splint (34) and a rear splint (35) are respectively fitted on the outer sides of the front and rear side guard plates (31). The front splint (34) and the rear splint (35) are fixedly connected via a fixing bolt (36).

7. The intrinsically safe power supply according to claim 6, characterized in that: The end of the guard plate (31) is protruding outward and is provided with a connecting column (33), and the end of the guard plate (31) is slidably connected to a through groove provided inside the front splint (34) or the rear splint (35) via the connecting column (33).

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