Power grid intelligent fusion terminal

Abstract

The utility model discloses a power grid intelligent fusion terminal, which belongs to the technical field of intelligent power grid equipment, and comprises a shell main body, a module cavity arranged on the shell main body, a cover plate used for covering the module cavity, a mainboard arranged in the shell main body, and a fin heat dissipation assembly attached to a heating part on the mainboard, the shell further comprises a heat dissipation cavity formed in the shell body, the heat dissipation cavity and the module cavity are both located on the front side of the shell body, the heat dissipation cavity is located above the module cavity, and the heat dissipation cavity serves as a containing cavity for containing the fin heat dissipation assembly. The panel is arranged on the shell main body and is used for covering the heat dissipation cavity; the shell main body is provided with an air inlet channel for communicating the heat dissipation cavity with the module cavity; and a drainage fan for sucking air in the heat dissipation cavity is arranged on the shell main body. The structure of the scheme not only can effectively guarantee the heat dissipation performance of the power grid intelligent fusion terminal, but also has the characteristics of simple structure and ideal protection performance.

Description

Technical Field

[0001] This utility model relates to the field of smart grid equipment technology, specifically to a smart grid integration terminal. Background Technology

[0002] The smart grid converged terminal (also known as a converged terminal or smart converged terminal) is an indispensable device in smart distribution networks. Typically installed in distribution substations, it serves as an integrated, multi-functional, and intelligent edge device. Compared to concentrators, feeder terminals, dedicated transformer terminals, and distribution transformer terminals, its main difference lies in its unified hardware and software platform, which boasts powerful edge computing, data storage, communication, and data security capabilities. This platform provides functional expansion and adaptation capabilities for specific application scenarios. The use of the smart grid converged terminal enables comprehensive perception of distribution substation information, intelligent processing of business processes, and precise execution of control commands. It effectively supports the development of distribution networks towards digitalization, intelligence, and interactivity, and is of great significance for building a safe, reliable, efficient, and green modern distribution network.

[0003] In current applications, the main functions of the smart grid converged terminal include multi-type power grid data acquisition, data edge computing and processing, power grid protection and control, and network communication support. At the same time, in different application scenarios, the smart grid converged terminal realizes its functions based on its high platform function openness and scalability. The means of implementation is to flexibly connect various expansion modules through reserved standard interfaces or slots to meet the differentiated needs of different application scenarios and different distribution areas. In existing applications, a specific smart grid converged terminal is configured as follows: including a housing body, a motherboard installed in the housing body, a processor configured on the motherboard, and a static heat dissipation component connected to the motherboard or processor. The static heat dissipation component is installed exposed relative to the housing body and is specifically used to dissipate heat from the processor. More specifically, both the motherboard and the processor are installed in the internal cavity of the smart grid converged terminal. The means of dissipating heat from the processor include: the inner side of the static heat dissipation component is in contact with the processor, and the outer side of the static heat dissipation component is exposed relative to the housing body of the smart grid converged terminal. The principle of heat dissipation is that the heat generated by the processor is conducted to the static heat dissipation component, and then the heat is dissipated to the environment through the static heat dissipation component. The means of dissipating heat from the processor also include: configuring a forced ventilation structure for the internal cavity. The principle of heat dissipation is to establish gas exchange between the internal cavity and the environment through the forced ventilation structure. A specific implementation scheme is, for example, the technical solution of patent application number CN202022510727.8 (title: a heat dissipation device for a smart distribution network converged terminal), in which an axial flow fan is used to dissipate heat from the internal space of the converged terminal.

[0004] As an important edge device and edge processing device in the power grid system, the smart grid converged terminal is usually used for outdoor installation. When proposing optimization and improvement of the smart grid converged terminal, the powerful data processing capability requires a focus on its heat dissipation performance. To ensure long-term reliability, its three-proof performance (waterproof, dustproof, and corrosion-proof) is also a key consideration. Based on the heat dissipation and three-proof issues mentioned above, it is necessary to further optimize the structure of the smart grid converged terminal to improve its performance indicators. Utility Model Content

[0005] The purpose of this utility model is to provide a smart grid integration terminal. The structure of this solution not only effectively ensures its heat dissipation performance, but also has the characteristics of simple structure and ideal protection performance.

[0006] This utility model is mainly achieved through the following technical solution: a smart grid converged terminal, including a housing body, a module cavity for installing an expansion module is provided on the housing body, and a cover plate for covering the module cavity is also provided. A motherboard is provided in the housing body, and a finned heat dissipation assembly is attached to the heat-generating parts on the motherboard. A heat dissipation cavity is also provided on the housing body. The heat dissipation cavity and the module cavity are both located on the front side of the housing body, and the heat dissipation cavity is located above the module cavity. The heat dissipation cavity serves as a receiving cavity for accommodating the finned heat dissipation assembly.

[0007] It also includes a panel disposed on the main body of the housing and used to cover the heat dissipation cavity;

[0008] The main body of the housing is provided with an air intake channel that connects the heat dissipation cavity and the module cavity;

[0009] The main body of the housing is equipped with a fan that draws in gas from the heat dissipation chamber.

[0010] This solution provides a smart grid convergence terminal, aiming to offer a technical solution that addresses the heat dissipation requirements of the smart grid convergence terminal while providing good protection performance, and also features a simple structure. Specifically:

[0011] The finned heat sink assembly is a static heat sink assembly that receives the heat generated by the working heat-generating components. The heat dissipation cavity and the panel form a receiving cavity for accommodating the finned heat sink assembly. When the heat-generating components are working, the heat generated by the heat-generating components is conducted to the finned heat sink assembly. When the exhaust fan (axial flow fan) is started, an airflow is established that passes through the module cavity, the air intake channel, and the heat dissipation cavity in sequence, thereby achieving the purpose of forced cooling of the finned heat sink assembly. The implementation of this solution has two advantages. First, because a forced cooling method is adopted for the finned heat sink assembly, the heat dissipation area requirement for the finned heat sink assembly is effectively reduced, allowing the finned heat sink assembly to be placed on the front side of the smart grid converged terminal to better match the position design of the processor in the smart grid converged terminal. Second, compared to directly cooling the finned heat sink assembly, the heat dissipation area requirement for the finned heat sink assembly is reduced. Ambient air is introduced into the internal cavity of the smart grid convergence terminal. When the exhaust fan is working, the airflow mainly acts on the heat dissipation cavity. Therefore, this solution can effectively ensure the protection requirements of the internal cavity of the smart grid convergence terminal. Secondly, the airflow path includes the module cavity, so the exhaust fan can cool the internal environment of the module cavity when it is working, thereby reducing the operating temperature of the expansion module and ensuring the reliability of the expansion module. Finally, in the prior art, the module cavity is generally set as a semi-enclosed structure. Using the module cavity as the starting point of the airflow on the smart grid convergence terminal can effectively prevent the airflow from carrying liquid water into the heat dissipation cavity. Therefore, this solution can effectively reduce the sealing requirements of the outer periphery of the finned heat dissipation assembly and the side wall of the heat dissipation cavity, which is beneficial to the protection performance of the internal cavity of the smart grid convergence terminal.

[0012] Meanwhile, both the heat dissipation cavity and the module cavity are located on the front side of the main body of the housing, which is intended to facilitate the insertion and removal of expansion modules and to establish the connection between the heat dissipation cavity and the module cavity. The heat dissipation cavity is located above the module cavity to adapt to the general position layout of functional modules on the smart grid converged terminal.

[0013] In summary, the above design avoids the following problems associated with traditional static heat dissipation components: Firstly, when the sealing performance between the static heat dissipation component and the main body of the housing deteriorates, the gap between the channel through which the static heat dissipation component passes and the static heat dissipation component becomes a channel for moisture (condensation may occur in the terminal box when the smart grid converged terminal is generally installed in the terminal box under outdoor use) and dust to enter the main body of the housing. Secondly, in the existing uniform design of smart grid converged terminals, the front area of ​​the smart grid converged terminal is difficult to adapt to the heat dissipation area required by static heat dissipation.

[0014] By adopting the above design, the problems of traditional forced ventilation schemes in practical applications can be avoided: using a protective net can better solve the problem of insects and dust entering the internal cavity of the smart grid fusion terminal, but it is difficult to avoid the impact of water vapor on the electronic components in the internal cavity during forced ventilation.

[0015] Preferably, to facilitate exhaust by the cooling fan and to match the general placement of heat-generating components such as the processor relative to the main body of the housing, the exhaust position of the cooling fan is located on the right side of the main body of the housing.

[0016] A further technical solution for the smart grid convergence terminal is as follows:

[0017] The heat-generating component includes a processor, and the finned heat dissipation assembly includes a component base plate and heat dissipation fins disposed on the top surface of the component base plate. The bottom side of the component base plate is attached to the top side of the processor, and the heat dissipation fins extend into the heat dissipation cavity.

[0018] The above describes a specific implementation of a finned heatsink assembly for heat-generating components in the processor. In this solution, the bottom side of the assembly's base plate is attached to the top side of the processor to ensure sufficient heat transfer area from the processor to the finned heatsink assembly. The heatsink fins provide a heat dissipation surface from the finned heatsink assembly to the environment. The airflow through the heat dissipation cavity acts on the heatsink fins, thereby achieving forced cooling of the finned heatsink assembly. In practical applications, based on the heat generation, the main heat-generating component on the motherboard is the processor. For this purpose, only the processor needs to be equipped with a finned heatsink assembly and a heat dissipation cavity.

[0019] The heat dissipation cavity is a channel connected to the internal cavity of the main body of the housing. The motherboard is installed in the internal cavity of the main body of the housing, and the processor is directly opposite the heat dissipation cavity.

[0020] The top side of the component base plate extends into the heat dissipation cavity;

[0021] It also includes a sealing ring installed in the heat dissipation cavity and located at the bottom side of the heat dissipation cavity, the sealing ring serving as a sealing structure for the gap formed between the component base plate and the wall of the heat dissipation cavity.

[0022] The above further provides the structural form of the heat dissipation cavity and its configuration with other structures on the smart grid integration terminal. That is, the internal cavity and the heat dissipation cavity together form the installation space of the motherboard, processor and fin heat dissipation assembly. The top side of the assembly base plate extends into the heat dissipation cavity, which aims to block the local space by using the assembly base plate, and further use the sealing ring to seal the space outside the assembly base plate in the heat dissipation cavity, so as to facilitate sealing the internal cavity into a closed cavity located in the main body of the shell, thereby achieving comprehensive protection for the electronic components in the internal cavity. In practical applications, the preferred configuration is as follows: the main body of the housing consists of a bottom housing and a top housing, the bottom housing and the top housing are connected by screws, a sealing gasket is clamped on the mating surface of the bottom housing and the top housing, the bottom housing and the top housing are assembled to form a sealing ring supported on the outer edge of the top surface of the component base plate, and a pressure ring with a central hole is fixed on the cavity wall of the heat dissipation cavity. The size of the central hole is such that the heat dissipation fins can pass through the pressure ring through the central hole. During the tightening of the screws, the pressure ring provides pressure towards the component base plate to the sealing ring, that is: by tightening the screws, the purpose of sealing the gap formed between the component base plate and the cavity wall of the heat dissipation cavity is achieved by using the sealing ring.

[0023] The finned heat dissipation assembly includes multiple heat dissipation fins, with fluid channels between adjacent heat dissipation fins. The fluid channels have an air intake side that connects to the air intake channel and an air outlet side that connects to the inlet end of the exhaust fan.

[0024] The above provides a specific implementation of a finned heat dissipation assembly. Multiple heat dissipation fins are used to ensure the heat dissipation area between the finned heat dissipation assembly and the environment, and form fluid channels between the heat dissipation fins. When the exhaust fan is working, the airflow passes through the intake channel and enters the fluid channel from the intake side. After flowing through the fluid channel, it further flows through the exhaust side and the exhaust fan, and then flows out to the outside of the heat dissipation cavity. By adopting this solution, the effective area of ​​the airflow on the finned heat dissipation assembly in the heat dissipation cavity can be effectively guaranteed, so as to achieve the purpose of efficient heat dissipation of the finned heat dissipation assembly.

[0025] The heat dissipation fins are all bent plates, and the fluid channels are the gaps between the heat dissipation fins.

[0026] The above provides a more specific implementation method for a finned heat dissipation assembly. In this solution, the bent heat dissipation fins are not only used to ensure the length of the airflow path in the heat dissipation cavity, but also to adapt to the bottom air intake and right air exhaust of the heat dissipation cavity, so as to adapt to the position of the heat dissipation cavity relative to the module cavity and the position of the processor in the housing body. The fluid channel is the gap between the heat dissipation fins: the fluid channel is formed between the heat dissipation fins, and under the premise of simple structure, the airflow can be directly applied to the heat dissipation fins.

[0027] The heat dissipation fins are installed in parallel on the base plate of the fin heat dissipation assembly. The air inlet side of each gap is located on the same side of the fin heat dissipation assembly, and the air outlet side of each gap is located on the same side of the fin heat dissipation assembly. The air inlet side and the air outlet side are located on different sides of the fin heat dissipation assembly.

[0028] An air distribution chamber is formed between the air intake side and the cavity wall of the heat dissipation chamber, and between the air outlet side and the cavity wall of the heat dissipation chamber. The outlet end of the air intake channel is connected to the air distribution chamber on the air intake side, and the inlet end of the duct fan is connected to the air distribution chamber on the air outlet side.

[0029] The above solution provides a specific arrangement of heat dissipation fins. In this arrangement, by placing the air intake side and the air outlet side of each gap on the same side, and further coordinating with the air distribution chamber, the following is achieved: After the exhaust fan is activated, the airflow from the intake channel is distributed to each gap through the air distribution chamber on the intake side. After exiting each gap, the airflow converges into the air distribution chamber on the outlet side, and then flows out into the environment through the airflow path on the exhaust fan. This solution allows for convenient configuration of airflow for heat dissipation in each gap. In practical implementation, the heat dissipation fins can be configured with an L-shaped bending structure. The heat dissipation fins arranged parallel to each other on the component base plate have different sizes, resulting in gaps with different flow lengths between different heat dissipation fins. When configuring the intake channel and exhaust fan, it is advisable to place the intake channel near the gap with the longer flow length and the exhaust fan near the gap with the longer flow length to achieve a balanced airflow in each gap.

[0030] The panel and heat sink fins are configured such that, after the panel covers the heat sink cavity, the bottom side of the panel is in contact with the top side of the heat sink fins.

[0031] The above provides a specific configuration of the panel and heat sink fins, which aims to achieve the following: the panel covers the outer end of the heat sink fins to form a fluid channel with the inner end closed by the component base plate, the side closed by the heat sink fins, and the outer end closed by the panel, so that the airflow flowing through the heat dissipation cavity can act efficiently on the heat sink fins, thereby achieving the purpose of reliable heat dissipation of the fin heat sink assembly.

[0032] The main body of the housing is provided with an air outlet on its side, and also includes a mounting cylinder installed in the air outlet, with the exhaust fan installed in the mounting cylinder.

[0033] The above provides a specific configuration of the exhaust fan, namely, after the exhaust fan is embedded in the mounting cylinder, the mounting cylinder is installed in the air outlet, thereby realizing an axial flow exhaust structure for the heat dissipation cavity on the main body of the housing based on the exhaust fan.

[0034] It also includes a barrier net installed in the mounting cylinder.

[0035] In the above scheme, the barrier net is used to prevent insects from entering the heat dissipation cavity. In practical application, since the air intake side of the air intake channel is a modular cavity, which is usually a semi-enclosed structure, the possibility of insects entering the air intake channel is lower compared to the location of the diversion fan. Therefore, in order to take into account the airflow resistance when the diversion fan is working, it is optional to consider whether to also install a barrier net in the air intake channel.

[0036] The module cavity is a cavity structure with an open lower end, and the air intake side of the air intake channel is located at the upper end of the module cavity.

[0037] In the above scheme, the open module cavity at the lower end not only has good moisture protection performance of the extended module, but also has good ventilation and heat dissipation performance. The selection of the air intake side of the air intake channel can not only shorten the length of the air intake channel, but also, when the exhaust fan is working, the suction airflow formed can cover a large area of ​​the module cavity.

[0038] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0039] This solution forms a mounting cavity for installing finned heat dissipation components based on the housing body and panel. By providing an air intake channel and a ducting fan for this mounting cavity, this solution can effectively ensure the heat dissipation performance of the smart grid fusion terminal for heat-generating components on the motherboard. At the same time, this solution also features a simple structure and corresponding airflow design, which makes the smart grid fusion terminal have ideal protection performance. Attached Figure Description

[0040] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0041] Figure 1 This is a structural schematic diagram of a specific embodiment of the smart grid convergence terminal of the present invention. In this structural schematic diagram, the cover plate and the panel are in a state of covering the corresponding cavity.

[0042] Figure 2 This is a structural schematic diagram of a specific embodiment of the smart grid convergence terminal of the present utility model. In this structural schematic diagram, the cover plate is not shown in part, the panel is not shown in part, and the dotted line part is partially in perspective, which is used to show the specific installation positions of the air intake channel, the exhaust fan and other components on the main body of the housing.

[0043] Figure 3 for Figure 2 A magnified view of part A shown;

[0044] Figure 4 This is a partial structural schematic diagram of a specific embodiment of the smart grid convergence terminal of the present invention. The schematic diagram is a cross-sectional view showing the location of the heat dissipation cavity.

[0045] The labels in the diagram represent:

[0046] 1. Casing body, 2. Cover plate, 3. Panel, 4. Module cavity, 5. Air intake channel, 6. Heat dissipation cavity, 7. Finned heat dissipation assembly, 8. Air intake fan, 9. Barrier mesh, 10. Mounting cylinder, 11. Main board, 12. Heating components, 13. Component base plate, 14. Heat dissipation fins, 15. Sealing ring, 16. Air distribution cavity. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0048] Example 1:

[0049] like Figures 1 to 4 As shown, this utility model embodiment provides a smart grid converged terminal, including a housing body 1, a module cavity 4 for installing an expansion module on the housing body 1, a cover plate 2 for covering the module cavity 4, a main board 11 in the housing body 1, a finned heat dissipation assembly 7 attached to a heat-generating component 12 on the main board 1, and a heat dissipation cavity 6 disposed on the housing body 1. The heat dissipation cavity 6 and the module cavity 4 are both located on the front side of the housing body 1, and the heat dissipation cavity 6 is located above the module cavity 4. The heat dissipation cavity 6 serves as a receiving cavity for accommodating the finned heat dissipation assembly 7.

[0050] It also includes a panel 3 disposed on the housing body 1 and used to cover the heat dissipation cavity 6;

[0051] The housing body 1 is provided with an air intake channel 5 that connects the heat dissipation cavity 6 and the module cavity 4;

[0052] The housing body 1 is equipped with a duct fan 8 for drawing gas from the heat dissipation chamber 6.

[0053] This solution provides a smart grid convergence terminal, aiming to offer a technical solution that addresses the heat dissipation requirements of the smart grid convergence terminal while providing good protection performance, and also features a simple structure. Specifically:

[0054] The finned heat sink assembly 7 is a static heat sink assembly that receives the heat generated by the heat-generating component 12. The heat dissipation cavity 6 and the panel 3 form a receiving cavity for the finned heat sink assembly 7. When the heat-generating component 12 is working, the heat generated by the heat-generating component 12 is conducted to the finned heat sink assembly 7. When the duct fan 8 (axial flow fan) is started, an airflow is established that passes through the module cavity 4, the air intake channel 5, and the heat dissipation cavity 6 in sequence, thereby achieving the purpose of forced cooling of the finned heat sink assembly 7. The implementation of this scheme has several advantages. First, because a forced cooling method is adopted for the finned heat sink assembly 7, the heat dissipation area requirement of the finned heat sink assembly 7 is effectively reduced, allowing the finned heat sink assembly 7 to be placed on the front side of the smart grid converged terminal to better match the position design of the processor in the smart grid converged terminal. Second, compared to By directly introducing ambient air into the internal cavity of the smart grid converged terminal, and with the airflow from the duct fan 8 primarily acting within the heat dissipation cavity 6 during operation, this solution effectively ensures the protection requirements of the internal cavity of the smart grid converged terminal. Secondly, the airflow path includes the module cavity 4, so the duct fan 8 can cool the internal environment of the module cavity 4 during operation, thereby reducing the operating temperature of the expansion module and ensuring its operational reliability. Finally, in the prior art, the module cavity 4 is generally designed as a semi-enclosed structure. Using the module cavity 4 as the starting point for airflow on the smart grid converged terminal can effectively prevent the airflow from carrying liquid water into the heat dissipation cavity 6. Therefore, this solution can effectively reduce the sealing requirements between the outer periphery of the finned heat dissipation assembly 7 and the sidewall of the heat dissipation cavity 6, which is beneficial to the protective performance of the internal cavity of the smart grid converged terminal.

[0055] Meanwhile, both the heat dissipation cavity 6 and the module cavity 4 are located on the front side of the housing body 1, which is intended to facilitate the insertion and removal of expansion modules and to establish the connection between the heat dissipation cavity 6 and the module cavity 4. The heat dissipation cavity 6 is located above the module cavity 4 to adapt to the general position layout of functional modules on the smart grid converged terminal.

[0056] Preferably, in order to facilitate the exhaust of the exhaust fan 8 and to match the general placement of the heat-generating component 12, such as the processor, relative to the housing body 1, the exhaust position of the exhaust fan 8 is located on the right side of the housing body 1.

[0057] Example 2:

[0058] This embodiment is a further refinement of embodiment 1:

[0059] The heat-generating component 12 includes a processor, and the finned heat dissipation assembly 7 includes an assembly base plate 13 and heat dissipation fins 14 disposed on the top surface of the assembly base plate 13. The bottom side of the assembly base plate 13 is in contact with the top side of the processor, and the heat dissipation fins 14 extend into the heat dissipation cavity 6.

[0060] The above describes a specific implementation of the finned heat sink assembly 7 for the heat-generating component 12 of the processor. In this solution, the bottom side of the assembly base plate 13 is attached to the top side of the processor to ensure the heat transfer area from the processor to the finned heat sink assembly 7. The heat sink fins 14 provide a heat dissipation surface from the finned heat sink assembly 7 to the environment. The airflow through the heat dissipation cavity 6 acts on the heat sink fins 14, thereby achieving the purpose of forced heat dissipation of the finned heat sink assembly 7. In practical applications, based on the heat generation, the main heat-generating component 12 on the motherboard 11 is the processor. For the heat-generating component 12 on the motherboard 11, only the finned heat sink assembly 7 and the heat dissipation cavity 6 need to be configured for the processor.

[0061] Example 3:

[0062] This embodiment is a further refinement of embodiment 2:

[0063] The heat dissipation cavity 6 is a channel connected to the internal cavity of the housing body 1. The motherboard 11 is installed in the internal cavity of the housing body 1, and the processor is directly opposite the heat dissipation cavity 6.

[0064] The top side of the component base plate 13 extends into the heat dissipation cavity 6;

[0065] It also includes a sealing ring 15 installed in the heat dissipation cavity 6 and located at the bottom side of the heat dissipation cavity 6. The sealing ring 15 serves as a sealing structure for the gap formed between the component base plate 13 and the cavity wall of the heat dissipation cavity 6.

[0066] The above further provides the structural form of the heat dissipation cavity 6 and its configuration with other structures on the smart grid fusion terminal. That is, the internal cavity and the heat dissipation cavity 6 together form the installation space of the motherboard 11, the processor and the fin heat dissipation assembly 7. The top side of the assembly base plate 13 extends into the heat dissipation cavity 6, which aims to block the local space by using the assembly base plate 13, and further use the sealing ring 15 to seal the space outside the assembly base plate 13 in the heat dissipation cavity 6, so as to facilitate sealing the internal cavity into a closed cavity located in the housing body 1, and realize comprehensive protection of the electronic components in the internal cavity. In practical applications, it is preferable to configure the main body 1 of the housing as a bottom housing and a top housing, with the bottom housing and the top housing connected by screws. A sealing gasket is clamped on the mating surface of the bottom housing and the top housing. The bottom housing and the top housing are assembled to form the bottom support of the sealing ring 15 on the outer edge of the top surface of the component base plate 13. A pressure ring with a central hole is fixed on the cavity wall of the heat dissipation cavity 6. The size of the central hole is such that the heat dissipation fins 14 can pass through the pressure ring through the central hole. During the process of tightening the screws, the pressure ring provides pressure to the sealing ring 15 toward the component base plate 13. That is, by tightening the screws, the purpose of sealing the gap formed between the component base plate 13 and the cavity wall of the heat dissipation cavity 6 is achieved by using the sealing ring 15.

[0067] Example 4:

[0068] This embodiment is a further refinement of embodiment 1:

[0069] The finned heat dissipation assembly 7 includes multiple heat dissipation fins 14, with fluid channels between adjacent heat dissipation fins 14. The fluid channels have an air intake side that connects to the air intake channel 5 and an air outlet side that connects to the inlet end of the exhaust fan 8.

[0070] The above provides a specific implementation of the finned heat dissipation assembly 7. Multiple heat dissipation fins 14 are used to ensure the heat dissipation area between the finned heat dissipation assembly 7 and the environment, and form a fluid channel between the heat dissipation fins 14. When the exhaust fan 8 is working, the airflow passes through the intake channel 5 and enters the fluid channel from the intake side. After flowing through the fluid channel, it further flows through the exhaust side and the exhaust fan 8, and flows out to the outside of the heat dissipation cavity 6. By adopting this solution, the effective area of ​​the airflow on the finned heat dissipation assembly 7 in the heat dissipation cavity 6 can be effectively guaranteed, so as to achieve the purpose of efficient heat dissipation of the finned heat dissipation assembly 7.

[0071] Example 5:

[0072] This embodiment is a further refinement of embodiment 4:

[0073] The heat dissipation fins 14 are all bent plates, and the fluid channels are the gaps between the heat dissipation fins 14.

[0074] The above provides a more specific implementation of the finned heat dissipation assembly 7. In this solution, the bent heat dissipation fins 14 are not only used to ensure the length of the airflow in the heat dissipation cavity 6, but also to adapt to the bottom air intake and right air exhaust of the heat dissipation cavity 6, so as to adapt to the position of the heat dissipation cavity 6 relative to the module cavity 4 and the position of the processor in the housing body 1. The fluid channel is the gap between the heat dissipation fins 14. The fluid channel is formed between the heat dissipation fins 14, and under the premise of simple structure, the airflow can directly act on the heat dissipation fins 14.

[0075] Example 6:

[0076] This embodiment is a further refinement of embodiment 5:

[0077] The heat dissipation fins 14 are installed in parallel on the component base plate 13 of the fin heat dissipation assembly 7. The air inlet side of each gap is located on the same side of the fin heat dissipation assembly 7, and the air outlet side of each gap is located on the same side of the fin heat dissipation assembly 7. The air inlet side and the air outlet side are located on different sides of the fin heat dissipation assembly 7.

[0078] An air distribution chamber 16 is formed between the air intake side and the cavity wall of the heat dissipation chamber 6, and between the air outlet side and the cavity wall of the heat dissipation chamber 6. The outlet end of the air intake channel 5 is connected to the air distribution chamber 16 on the air intake side, and the inlet end of the duct fan 8 is connected to the air distribution chamber 16 on the air outlet side.

[0079] The above solution provides a specific arrangement of heat dissipation fins 14. In this arrangement, by setting the air intake side of each gap on the same side and the air outlet side of each gap on the same side, and further cooperating with the air distribution chamber 16, the following is achieved: after the induced draft fan 8 is activated, the airflow from the intake channel 5 is distributed to each gap through the air distribution chamber 16 on the intake side. After the airflow exits each gap, it converges into the air distribution chamber 16 on the outlet side, and then flows out to the environment through the airflow path on the induced draft fan 8. Using this solution, it is convenient to configure the airflow for heat dissipation in each gap. In specific implementation, the heat dissipation fins 14 can be configured as L-shaped bent structures. The heat dissipation fins 14 arranged parallel to each other on the component base plate 13 have different sizes, resulting in gaps with different flow lengths between different heat dissipation fins 14. When configuring the intake channel 5 and the induced draft fan 8, it is advisable to configure the intake channel 5 near the gap with the longer flow length and the induced draft fan 8 near the gap with the longer flow length to achieve the purpose of balancing the airflow in each gap.

[0080] Example 7:

[0081] This embodiment is a further refinement of embodiment 4:

[0082] The panel 3 and the heat dissipation fins 14 are configured such that after the panel 3 covers the heat dissipation cavity 6, the bottom side of the panel 3 is in contact with the top side of the heat dissipation fins 14.

[0083] The above provides a specific configuration of panel 3 and heat dissipation fins 14, which aims to achieve the following: by using panel 3 to cover the outer end of heat dissipation fins 14, a fluid channel is formed with the inner end closed by component base plate 13, the side closed by heat dissipation fins 14, and the outer end closed by panel 3, so that the airflow flowing through heat dissipation cavity 6 can be efficiently applied to heat dissipation fins 14, thereby achieving the purpose of reliable heat dissipation of fin heat dissipation assembly 7.

[0084] Example 8:

[0085] This embodiment is a further refinement of embodiment 1:

[0086] The housing body 1 has an air outlet on its side and also includes an installation cylinder 10 installed in the air outlet, with the air-guiding fan 8 installed in the installation cylinder 10.

[0087] The above provides a specific configuration of the air-draining fan 8. That is, after the air-draining fan 8 is embedded in the mounting cylinder 10, the mounting cylinder 10 is installed in the air outlet hole, thereby realizing the formation of an axial flow air extraction structure for the heat dissipation cavity 6 on the housing body 1 based on the air-draining fan 8.

[0088] Example 9:

[0089] This embodiment is a further refinement of embodiment 8:

[0090] It also includes a barrier net 9 installed in the mounting cylinder 10.

[0091] In the above scheme, the barrier net 9 is used to prevent insects from entering the heat dissipation cavity 6. In practical application, since the air intake side of the air intake channel 5 is the module cavity 4, which is usually a semi-enclosed structure, the possibility of insects entering the air intake channel 5 is lower than that of the drainage fan 8. Therefore, in order to take into account the airflow resistance when the drainage fan 8 is working, it is optional to consider whether to also install a barrier net 9 in the air intake channel 5.

[0092] Example 10:

[0093] This embodiment is a further refinement of embodiment 1:

[0094] The module cavity 4 is a cavity structure with an open lower end, and the air intake side of the air intake channel 5 is located at the upper end of the module cavity 4.

[0095] In the above scheme, the lower open module cavity 4 not only has good moisture protection performance of the extended module, but also has good ventilation and heat dissipation performance. The selection of the air intake side of the air intake channel 5 can not only shorten the length of the air intake channel 5, but also, when the duct fan 8 is working, the suction airflow formed can cover a large area of ​​the module cavity 4.

[0096] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A smart grid converged terminal, comprising a housing body (1), wherein the housing body (1) is provided with a module cavity (4) for installing an expansion module, and a cover plate (2) for covering the module cavity (4), wherein a main board (11) is provided in the housing body (1), and a finned heat dissipation assembly (7) is attached to a heat-generating component (12) on the main board (11), characterized in that, It also includes a heat dissipation cavity (6) disposed on the housing body (1). The heat dissipation cavity (6) and the module cavity (4) are both located on the front side of the housing body (1). The heat dissipation cavity (6) is located above the module cavity (4). The heat dissipation cavity (6) serves as a receiving cavity for accommodating the finned heat dissipation assembly (7). It also includes a panel (3) disposed on the housing body (1) and used to cover the heat dissipation cavity (6); The housing body (1) is provided with an air intake channel (5) that enables the heat dissipation cavity (6) to communicate with the module cavity (4). The housing body (1) is provided with a duct fan (8) for drawing gas from the heat dissipation cavity (6).

2. The smart grid convergence terminal according to claim 1, characterized in that, The heat-generating component (12) includes a processor, and the finned heat dissipation assembly (7) includes an assembly base plate (13) and heat dissipation fins (14) disposed on the top surface of the assembly base plate (13). The bottom side of the assembly base plate (13) is attached to the top side of the processor, and the heat dissipation fins (14) extend into the heat dissipation cavity (6).

3. The smart grid convergence terminal according to claim 2, characterized in that, The heat dissipation cavity (6) is a channel connected to the internal cavity of the housing body (1). The motherboard (11) is installed in the internal cavity of the housing body (1), and the processor is directly opposite the heat dissipation cavity (6). The top side of the component base plate (13) extends into the heat dissipation cavity (6); It also includes a sealing ring (15) installed in the heat dissipation cavity (6) and located at the bottom side of the heat dissipation cavity (6), the sealing ring (15) serving as a sealing structure for the gap formed between the component base plate (13) and the cavity wall of the heat dissipation cavity (6).

4. The smart grid convergence terminal according to claim 1, characterized in that, The finned heat dissipation assembly (7) includes multiple heat dissipation fins (14), and there is a fluid channel between adjacent heat dissipation fins (14). The fluid channel has an air intake side that is connected to the air intake channel (5) and an air outlet side that is connected to the inlet end of the duct fan (8).

5. The smart grid convergence terminal according to claim 4, characterized in that, The heat dissipation fins (14) are all bent plates, and the fluid channels are the gaps between the heat dissipation fins (14).

6. The smart grid convergence terminal according to claim 5, characterized in that, The heat dissipation fins (14) are installed in parallel on the component base plate (13) of the fin heat dissipation assembly (7). The air inlet side of each gap is located on the same side of the fin heat dissipation assembly (7), and the air outlet side of each gap is located on the same side of the fin heat dissipation assembly (7). The air inlet side and the air outlet side are located on different sides of the fin heat dissipation assembly (7). An air distribution chamber (16) is formed between the air intake side and the cavity wall of the heat dissipation chamber (6), and between the air outlet side and the cavity wall of the heat dissipation chamber (6). The outlet end of the air intake channel (5) is connected to the air distribution chamber (16) on the air intake side, and the inlet end of the duct fan (8) is connected to the air distribution chamber (16) on the air outlet side.

7. The smart grid convergence terminal according to any one of claims 4 to 6, characterized in that, The panel (3) and the heat dissipation fins (14) are configured such that after the panel (3) covers the heat dissipation cavity (6), the bottom side of the panel (3) is in contact with the top side of the heat dissipation fins (14).

8. The smart grid convergence terminal according to claim 1, characterized in that, The side of the housing body (1) is provided with an air outlet, and the housing body (10) is also provided with an installation cylinder (10) installed in the air outlet. The air-guiding fan (8) is installed in the installation cylinder (10).

9. The smart grid convergence terminal according to claim 8, characterized in that, It also includes a barrier net (9) installed in the mounting cylinder (10).

10. The smart grid convergence terminal according to claim 1, characterized in that, The module cavity (4) is a cavity structure with an open lower end, and the air intake side of the air intake channel (5) is located at the upper end of the module cavity (4).

Images