A maintenance-friendly integrated monitoring device for power supply and utilization

Abstract

The application discloses an easily-maintained power supply and utilization integrated monitoring device and relates to the technical field of power supply monitoring. The application comprises a shell body, a front cover fixed to the front side of the shell body, a plurality of groups of function modules connected to the inside of the shell body through a plurality of groups of connecting assemblies, and a main control module, a metering module, a communication module, a power module and a sensor front-end module. The application integrates the whole monitoring function in different function modules, cooperates with the connecting effect of the connecting assemblies, and designs the integrated plug and the integrated socket, so that the modular arrangement of the structure and the electricity is realized, the convenience of disassembly, assembly and maintenance is increased, the limiting stability of the function modules relative to the shell body is ensured through the limiting of the slide rail and the slide frame and the limiting of the wedge block one and the wedge block two, the integrated plug and the integrated socket are prevented from being bent, and the reliability is increased.

Description

Technical Field

[0001] This invention relates to the field of power supply monitoring technology, and in particular to an easy-to-maintain integrated power supply and consumption monitoring device. Background Technology

[0002] The integrated power supply and consumption monitoring device is mainly used in scenarios such as power distribution rooms, smart grid nodes, and industrial power consumption data acquisition terminals.

[0003] The integrated power supply and consumption monitoring device is designed to collect and monitor the voltage, current, harmonics, and switch status of power lines in real time.

[0004] However, existing power supply monitoring devices generally adopt an integrated, encapsulated structure, which has several drawbacks: First, poor maintenance convenience. Due to the hard connection and high integration of internal circuit boards via ribbon cables, a fault often requires the entire device to be powered off and disassembled, sometimes even necessitating on-site complex soldering or replacement by specialized technicians, resulting in prolonged downtime. Second, difficulty in disassembly and positioning. Traditional module installation relies on screw fastening and ordinary guide rails, lacking effective guiding and pre-tightening mechanisms. Precise alignment is difficult during insertion and removal, and forced operation can easily lead to pin misalignment or interface damage.

[0005] Therefore, this invention proposes an easy-to-maintain integrated power supply and consumption monitoring device. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing an easy-to-maintain integrated power supply and consumption monitoring device.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: An easy-to-maintain integrated power supply and consumption monitoring device includes an outer shell and a front cover fixed to the front side of the outer shell. The interior of the outer shell is connected to multiple functional modules through multiple sets of connecting components. The functional modules include a main control module, a metering module, a communication module, a power supply module, and a sensor front-end module. The connecting component includes a slide rail fixed to the outer wall of the functional module and a slide frame fixed to the inner wall of the outer shell. The slide rail and the slide frame are slidably engaged. The connecting component also includes a wedge block one and a wedge block two that cooperate with each other. The wedge block one is fixed to the inner side wall of one of the slide frames. The wedge block two is slidably connected to the inner wall of the slide rail through a slider. The slide rail is also provided with a limiting rod for driving the slider to move. An integrated plug is fixed to the back of the functional module, and an integrated socket that mates with the integrated plug is fixed inside the housing. The integrated plug is electrically connected to the functional module, and the integrated socket is electrically connected to the monitoring base station or monitoring equipment. The electrical connection includes a high-voltage connection and a low-voltage connection.

[0008] Preferably, the limiting rod includes a limiting block and a button rod. The limiting block is slidably connected to the inside of the slide rail, and the limiting block and the slider are engaged by an inclined surface. One side of the slider is fastened with a spring, and the other end of the spring is fastened to the inner wall of the slide rail. One end of the button rod is fixed to the side wall of the limiting block, and the other end of the button rod extends out of the slide rail.

[0009] Furthermore, the back of the functional module is also provided with a flexible switch assembly. The flexible switch assembly is connected in series with the integrated socket and the high-voltage circuit of the monitoring base station or monitoring equipment. The flexible switch assembly includes a pole fixed to the back of the functional module and an insulating base fixed to the inner wall of the outer casing. An electrode plate is fixed to the other end of the pole, and an elastic electrode plate that cooperates with the electrode plate is fixed to the outer wall of the insulating base.

[0010] Based on the aforementioned scheme: an insulating ring is fixed to the outer wall of the electrode sheet, and a spring is fastened between the insulating ring and the insulating seat.

[0011] A better embodiment of the aforementioned solution is: the outer wall of the front cover is provided with multiple observation windows, the position and number of which correspond to the connecting components, the outer wall of the observation window is provided with a door, the outer wall of the door is provided with an identification area, and the other side of the door is connected to the front cover by a snap-fit ​​component.

[0012] As a further aspect of the present invention: the buckle assembly includes a stepped groove formed in the front cover and a rotating post rotatably connected to the door. A knob is fixed at one end of the rotating post, and a locking post is fixed at the other end of the rotating post. A clearance groove is provided in the stepped groove to allow the locking post to pass through.

[0013] Meanwhile, the outer shell has a cavity structure, and multiple heat-conducting connecting ribs are fixed inside the cavity of the outer shell. The inner wall of the connecting ribs has uniform through holes. The bottom outer wall of the outer shell has a heat dissipation grid, and the bottom inner wall of the outer shell has a heat dissipation fan.

[0014] As a preferred embodiment of the present invention: an air vent is provided on the top outer side wall of the outer casing, and a guide frame is provided on the outer wall of the air vent.

[0015] Meanwhile, the path of the guide frame is rectangular, and its cross-section is inclined or arc-shaped.

[0016] As a preferred embodiment of the present invention, the starting directions of the two cooling fans can be the same or opposite, which can establish a heat dissipation channel for the inner cavity of the outer casing.

[0017] The beneficial effects of this invention are as follows: 1. This invention integrates the entire monitoring function into different functional modules, and with the connecting components and the design of integrated plugs and sockets, it achieves a modular layout that synchronizes structure and electrical operation, increasing the convenience of disassembly, assembly, and maintenance. Furthermore, the limiting of the slide rails and carriages, as well as the limiting of wedges one and two, ensures the stability of the functional modules relative to the outer shell, preventing bending of the mating pins of the integrated plugs and sockets, and increasing reliability.

[0018] 2. This invention, by setting up an elastic switch assembly, on the one hand, enables the high-voltage connection of the functional module to be synchronized with its engagement with the outer casing, increasing safety. On the other hand, in the engaged state, the elastic force provided by the second spring and the elastic electrode can be transmitted to the functional module, thereby using the elastic force to compensate for the engagement gap between the first and second wedges, and between the slide rail and the carriage. At the same time, during disassembly, when the first and second wedges separate, the elastic force is used to push the functional module outward, which on the one hand enables the electrode plate and the elastic electrode, and the integrated plug and the integrated socket to separate quickly, preventing damage in the "partial contact" state, and on the other hand, facilitates the subsequent manual removal of the functional module.

[0019] 3. The present invention, by setting a window component, allows for viewing and visually inspecting the running status through the observation window settings. At the same time, by setting a snap-fit ​​component, it can conveniently perform this step.

[0020] 4. In this invention, when used on a sunny day, the cooling fan starts and dissipates the heat inside the outer shell. On the other hand, when there is wind on the outside, it blows along the upper surface of the outer shell. When it passes the guide frame, the wind speed increases and the pressure decreases due to its guiding effect. According to the Venturi principle, some of the heat inside the cavity of the outer shell can be carried out. At the same time, on rainy days, rainwater can enter the cavity through the air vent. On the one hand, the temperature of the rainwater is used to assist in heat dissipation, and on the other hand, the contact with the rainwater cleans the cavity. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an easy-to-maintain integrated power supply and consumption monitoring device proposed in this invention; Figure 2 This is a schematic diagram of the connection component structure of an easy-to-maintain integrated power supply and consumption monitoring device proposed in this invention; Figure 3 This is a cross-sectional view of the connection components of an easy-to-maintain integrated power supply and consumption monitoring device proposed in this invention. Figure 4 This is a schematic diagram of the limiting rod structure of an easy-to-maintain integrated power supply and consumption monitoring device proposed in this invention; Figure 5This is a schematic diagram of the flexible switch assembly structure of an easy-to-maintain integrated power supply and consumption monitoring device proposed in this invention; Figure 6 This is a schematic diagram of the window assembly structure of an easy-to-maintain integrated power supply and consumption monitoring device proposed in this invention; Figure 7 This is a schematic diagram of the snap-fit ​​component structure of an easy-to-maintain integrated power supply and consumption monitoring device proposed in this invention; Figure 8 This is a schematic cross-sectional view of the outer casing of an easy-to-maintain integrated power supply and consumption monitoring device proposed in this invention. Figure 9 This is a schematic diagram of the guide frame structure of an easy-to-maintain integrated power supply and consumption monitoring device proposed in this invention.

[0022] In the diagram: 1. Outer shell; 2. Connecting assembly; 3. Functional module; 4. Front cover; 5. Integrated plug; 6. Integrated socket; 7. Flexible switch assembly; 8. Slide rail; 9. Carrier; 10. Limiting rod; 11. Wedge block one; 12. Wedge block two; 13. Slider; 14. Inclined surface; 15. Limiting block; 16. Button lever; 17. Spring one; 18. Pole post; 19. Electrode plate; 20. Insulating ring; 21. Spring two; 22. Insulating base; 23. Flexible electrode plate; 24. Window assembly; 25. Identification area; 26. Door; 27. Buckle assembly; 28. Step groove; 29. ​​Clearance groove; 30. Locking post; 31. Rotating post; 32. Knob; 33. Guide frame; 34. Air vent; 35. Through hole; 36. Connecting rib; 37. Heat dissipation grille; 38. Cooling fan. Detailed Implementation

[0023] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0024] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0025] Example 1: An easy-to-maintain integrated power supply and consumption monitoring device, such as... Figures 1-9 As shown, it includes an outer shell 1 and a front cover 4 fixed to the front side of the outer shell 1. The interior of the outer shell 1 is connected to multiple sets of functional modules 3 through multiple sets of connecting components 2. The functional modules 3 include a main control module, a metering module, a communication module, a power supply module, and a sensor front-end module.

[0026] The connecting component 2 includes a slide rail 8 fixed to the outer wall of the functional module 3 and a slide 9 fixed to the inner wall of the outer shell 1. The slide rail 8 and the slide 9 are slidably engaged. The connecting component 2 also includes a wedge block 11 and a wedge block 2 12 that cooperate with each other. The wedge block 11 is fixed to the inner side wall of one of the slides 9. The wedge block 2 12 is slidably connected to the inner wall of the slide rail 8 through a slider 13. The slide rail 8 is also provided with a limiting rod 10 for moving and driving the slider 13.

[0027] An integrated plug 5 is fixed to the back of the functional module 3, and an integrated socket 6 that mates with the integrated plug 5 is fixed inside the outer casing 1. The integrated plug 5 is electrically connected to the functional module 3, and the integrated socket 6 is electrically connected to the monitoring base station or monitoring equipment. The electrical connection includes a high-voltage connection and a low-voltage connection.

[0028] When using this device, the handheld functional module 3 can be inserted into the housing 1 after aligning the slide rail 8 and the slide frame 9. When the fully inserted and engaged state is reached, wedge 11 and wedge 2 12 engage to lock the slide rail 8 and the slide frame 9. At the same time, the integrated plug 5 and the integrated socket 6 are plugged in to connect the functional module 3 to the monitoring base station or monitoring equipment. When disassembly is required, the slider 13 is retracted by the limit rod 10, thereby releasing the engagement of wedge 11 and wedge 2 12, and the functional module 3 can be pulled out.

[0029] This device integrates the entire monitoring function into different functional modules 3, and with the connection function of the connecting component 2, as well as the design of the integrated plug 5 and integrated socket 6, it achieves a modular layout that synchronizes structure and electrical functions. This increases the convenience of disassembly, assembly, and maintenance. Furthermore, the limiting functions of the slide rail 8 and slide 9, as well as the limiting functions of wedge 11 and wedge 2 12, ensure the stability of the functional module 3 relative to the outer shell 1, preventing the mating pins of the integrated plug 5 and integrated socket 6 from bending and increasing reliability.

[0030] To further address the convenience issue; such as Figure 4 As shown, the limiting rod 10 includes a limiting block 15 and a button rod 16. The limiting block 15 is slidably connected to the inside of the slide rail 8, and the limiting block 15 and the slider 13 are engaged by the inclined surface 14. A spring 17 is fastened to one side of the slider 13, and the other end of the spring 17 is fastened to the inner wall of the slide rail 8. One end of the button rod 16 is fixed to the side wall of the limiting block 15, and the other end of the button rod 16 extends out of the slide rail 8.

[0031] During installation, push the functional module 3 directly until the inclined surfaces of wedge 11 and wedge 2 12 engage. Wedge 2 12 will then retract into the slide rail 8 under the action of force. After wedge 11 and wedge 2 12 reach the engagement position, wedge 2 12 will rebound under the elastic force of spring 17, locking the slide rail 8 relative to the slide frame 9. During disassembly, press the extended part of the button lever 16 with your finger to push the button lever 16 to move. This will cause the slider 13 to retract the wedge 2 12 through the action of the inclined surface 14, releasing the limit between the slide rail 8 and the slide frame 9.

[0032] To address security issues; such as Figure 5 As shown, the back of the functional module 3 is also provided with a flexible switch assembly 7. The flexible switch assembly 7 is connected in series with the integrated socket 6 and the high-voltage circuit of the monitoring base station or monitoring equipment. The flexible switch assembly 7 includes a pole post 18 fixed to the back of the functional module 3 and an insulating base 22 fixed to the inner wall of the outer shell 1. An electrode plate 19 is fixed to the other end of the pole post 18, and an elastic electrode plate 23 that cooperates with the electrode plate 19 is fixed to the outer wall of the insulating base 22.

[0033] An insulating ring 20 is fixed to the outer wall of the electrode sheet 19, and a spring 21 is fastened between the insulating ring 20 and the insulating seat 22.

[0034] When the functional module 3 is fully inserted into the outer casing 1 and reaches the working state, the electrode 19 and the elastic electrode 23 are in contact, and the corresponding functional module 3 is in contact with the monitoring base station or monitoring equipment for high-voltage connection. When the functional module 3 is pulled out relative to the outer casing 1, the electrode 19 and the elastic electrode 23 are separated, and the corresponding functional module 3 is disconnected from the monitoring base station or monitoring equipment by high voltage.

[0035] This device, by setting up the elastic switch assembly 7, on the one hand, allows the high-voltage connection of the functional module 3 to be synchronized with its engagement with the outer casing 1, increasing safety. On the other hand, in the engaged state, the elastic force provided by the second spring 21 and the elastic electrode 23 can be transmitted to the functional module 3, thereby using the elastic force to compensate for the engagement gap between the first wedge 11 and the second wedge 12, and between the slide rail 8 and the slide 9. At the same time, when the first wedge 11 and the second wedge 12 separate during disassembly, the elastic force is used to push the functional module 3 outward, which on the one hand allows the electrode 19 to quickly separate from the elastic electrode 23, and the integrated plug 5 and the integrated socket 6, preventing damage in the "half-contact" state, and on the other hand, makes it easier for the functional module 3 to be removed manually later.

[0036] To address the convenience issue; such as Figure 6 , 7As shown, the outer wall of the front cover 4 has multiple observation windows. The position and number of the observation windows correspond to the connecting component 2. The outer wall of the observation window is provided with a door 26. The outer wall of the door 26 is provided with an identification area 25. The other side of the door 26 is connected to the front cover 4 through a buckle component 27.

[0037] The buckle assembly 27 includes a stepped groove 28 formed in the front cover 4 and a rotating post 31 rotatably connected to the door 26. A knob 32 is fixed at one end of the rotating post 31, and a locking post 30 is fixed at the other end of the rotating post 31. A clearance groove 29 is provided in the stepped groove 28 to allow the locking post 30 to pass through.

[0038] When it is necessary to check or visually inspect the running status during use, first locate the corresponding function module 3 according to the marked area 25, then rotate the knob 32. The knob 32 drives the locking column 30 to rotate through the rotating column 31 until the locking column 30 is rotated to the position of the clearance groove 29. Then rotate the door 26 to open, revealing the observation window. After observation, rotate the door 26 again to align the locking column 30 with the position of the clearance groove 29, insert the rotating column 31 into the inside of the step groove 28, and then rotate the knob 32 to close and limit the door 26.

[0039] This device, by setting up the window component 24, allows for viewing and visually inspecting the operating status through the observation window. At the same time, by setting up the snap-fit ​​component 27, it can conveniently perform this operation.

[0040] In this embodiment, during installation, the functional module 3 is directly pushed until the inclined surfaces of wedge 11 and wedge 2 12 engage. Wedge 2 12 then contracts into the slide rail 8 under pressure. Once wedge 11 and wedge 2 12 are in the engaging position, wedge 2 12 rebounds under the elastic force of spring 17, locking the slide rail 8 relative to the slide frame 9. During disassembly, pressing the extended portion of the button lever 16 with a finger moves the button lever 16, causing the slider 13 to retract wedge 2 12 through the inclined surface 14, releasing the restriction between the slide rail 8 and the slide frame 9. When the functional module 3 is fully inserted into the outer casing 1 and reaches the working state, the electrode plate 19 contacts the elastic electrode plate 23, and the corresponding functional module 3 connects with the monitoring base station or... The monitoring equipment is connected to a high-voltage power source. When the functional module 3 is pulled out from the outer casing 1, the electrode 19 separates from the elastic electrode 23, and the corresponding functional module 3 is disconnected from the monitoring base station or monitoring equipment. In addition, when it is necessary to check the running status or visually inspect the running status during use, the corresponding functional module 3 can be located according to the marking area 25 first. Then, rotate the knob 32. The knob 32 drives the locking pin 30 to rotate through the rotating column 31 until the locking pin 30 is rotated to the position of the clearance groove 29. Then, rotate the door 26 to open it, revealing the observation window. After observation, rotate the door 26 again to align the locking pin 30 with the position of the clearance groove 29, insert the rotating column 31 into the inside of the step groove 28, and then rotate the knob 32 to close and limit the door 26.

[0041] Example 2: An easy-to-maintain integrated power supply and consumption monitoring device, such as... Figure 8 , Figure 9 As shown, in order to solve the heat dissipation problem, this embodiment makes the following improvements based on embodiment 1: the outer shell 1 is a cavity structure, and multiple heat-conducting connecting ribs 36 are fixed inside the cavity of the outer shell 1. The inner wall of the connecting ribs 36 is provided with uniform through holes 35. The top outer wall of the outer shell 1 is provided with an air vent 34. The outer wall of the air vent 34 is provided with a guide frame 33. The bottom outer wall of the outer shell 1 is provided with a heat dissipation grid 37. The bottom inner wall of the outer shell 1 is provided with a heat dissipation fan 38.

[0042] The path of the guide frame 33 is rectangular, and its cross-section is inclined or arc-shaped.

[0043] In this embodiment, the starting directions of the two cooling fans 38 can be the same or opposite, which is intended to establish a reliable heat dissipation channel for the inner cavity of the outer casing 1.

[0044] In this embodiment, when used on a sunny day, the cooling fan 38 is activated, which dissipates the heat inside the outer casing 1. On the other hand, when there is wind on the outside, it blows along the upper surface of the outer casing 1. When it passes the guide frame 33, the wind speed increases and the pressure decreases due to its guiding effect. According to the Venturi principle, some of the heat inside the cavity of the outer casing 1 can be carried out. At the same time, on rainy days, rainwater can enter the cavity through the air vent 34. On the one hand, the temperature of the rainwater is used to assist in heat dissipation, and on the other hand, the contact with the rainwater cleans the cavity.

[0045] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An easy-to-maintain integrated power supply and consumption monitoring device, comprising a housing (1) and a front cover (4) fixed to the front side of the housing (1), characterized in that, The interior of the outer shell (1) is connected to multiple functional modules (3) via multiple sets of connecting components (2). The functional modules (3) include a main control module, a metering module, a communication module, a power supply module, and a sensor front-end module. The connecting component (2) includes a slide rail (8) fixed to the outer wall of the functional module (3) and a slide frame (9) fixed to the inner wall of the outer shell (1). The slide rail (8) and the slide frame (9) are slidably engaged. The connecting component (2) also includes a wedge block one (11) and a wedge block two (12) that cooperate with each other. The wedge block one (11) is fixed to the inner wall of one of the slide frames (9). The wedge block two (12) is slidably connected to the inner wall of the slide rail (8) through a slider (13). The slide rail (8) is also provided with a limiting rod (10) for moving the slider (13). An integrated plug (5) is fixed on the back of the functional module (3), and an integrated socket (6) that mates with the integrated plug (5) is fixed inside the outer shell (1). The integrated plug (5) is electrically connected to the functional module (3), and the integrated socket (6) is electrically connected to the monitoring base station or monitoring equipment. The electrical connection includes a high-voltage connection and a low-voltage connection.

2. The easy-to-maintain integrated power supply and consumption monitoring device according to claim 1, characterized in that, The limiting rod (10) includes a limiting block (15) and a button rod (16). The limiting block (15) is slidably connected to the inside of the slide rail (8), and the limiting block (15) and the slider (13) cooperate through the inclined surface (14). One side of the slider (13) is fastened with a spring (17), and the other end of the spring (17) is fastened to the inner wall of the slide rail (8). One end of the button rod (16) is fixed to the side wall of the limiting block (15), and the other end of the button rod (16) extends out of the slide rail (8).

3. The easy-to-maintain integrated power supply and consumption monitoring device according to claim 1, characterized in that, The back of the functional module (3) is also provided with a flexible switch assembly (7). The flexible switch assembly (7) is connected in series with the integrated socket (6) and the high-voltage circuit of the monitoring base station or monitoring equipment. The flexible switch assembly (7) includes a pole post (18) fixed to the back of the functional module (3) and an insulating seat (22) fixed to the inner wall of the outer shell (1). An electrode plate (19) is fixed at the other end of the pole post (18), and an elastic electrode plate (23) that cooperates with the electrode plate (19) is fixed on the outer wall of the insulating seat (22).

4. The easy-to-maintain integrated power supply and consumption monitoring device according to claim 3, characterized in that, An insulating ring (20) is fixed to the outer wall of the electrode sheet (19), and a spring (21) is fastened between the insulating ring (20) and the insulating seat (22).

5. The easy-to-maintain integrated power supply and consumption monitoring device according to claim 1, characterized in that, The outer wall of the front cover (4) is provided with multiple observation windows. The position and number of observation windows correspond to the connecting component (2). The outer wall of the observation window is provided with a door (26). The outer wall of the door (26) is provided with an identification area (25). The other side of the door (26) is connected to the front cover (4) through a buckle component (27).

6. The easy-to-maintain integrated power supply and consumption monitoring device according to claim 5, characterized in that, The buckle assembly (27) includes a step groove (28) opened on the front cover (4) and a rotating post (31) rotatably connected to the door (26). A knob (32) is fixed at one end of the rotating post (31), and a locking post (30) is fixed at the other end of the rotating post (31). A clearance groove (29) is provided at the step groove (28) for the locking post (30) to pass through.

7. The easy-to-maintain integrated power supply and consumption monitoring device according to claim 1, characterized in that, The outer shell (1) has a cavity structure, and multiple heat-conducting connecting ribs (36) are fixed inside the cavity of the outer shell (1). The inner wall of the connecting ribs (36) is provided with uniform through holes (35). The bottom outer wall of the outer shell (1) is provided with a heat dissipation grid (37), and the bottom inner wall of the outer shell (1) is provided with a heat dissipation fan (38).

8. The easy-to-maintain integrated power supply and consumption monitoring device according to claim 7, characterized in that, The outer wall of the outer shell (1) is provided with an air vent (34), and the outer wall of the air vent (34) is provided with a guide frame (33).

9. The easy-to-maintain integrated power supply and consumption monitoring device according to claim 8, characterized in that, The path of the guide frame (33) is rectangular, and its cross-section is inclined or arc-shaped.

10. The easy-to-maintain integrated power supply and consumption monitoring device according to claim 7, characterized in that, The two cooling fans (38) can start in the same or opposite directions, which can create a heat dissipation channel for the inner cavity of the outer casing (1).

Images