Excitation device with automatic cooling function

Abstract

The utility model provides an excitation device with an automatic cooling function, and belongs to the technical field of electric power accessories. Comprising a cabinet body, a mounting plate is fixedly connected to the top of the cabinet body, a fan is arranged on the mounting plate, a fixing hole is formed in one side of the cabinet body, and a sealing door is rotationally connected to the position, located at the fixing hole, of the cabinet body. Through the arrangement of the first filtering assembly and the second filtering assembly, when the first filtering assembly and the second filtering assembly need to be replaced, an operator only needs to open the sealing door in a rotating mode, the first filtering assembly and the second filtering assembly are replaced alternately, and the fan can still be in a working state while the filtering assemblies are replaced; the working efficiency is improved, the filter assembly does not need to be replaced by opening the main door of the cabinet body, and it is avoided that electronic elements in the cabinet body are exposed in the air and make contact with the air, dust in the air is adsorbed, and use of the electronic elements is affected.

Description

Technical Field

[0001] The utility model relates to the technical field of power accessories, in particular to an excitation device with an automatic cooling function. Background Art

[0002] The excitation device refers to the electrical control device in the excitation system of the synchronous generator that can control and regulate the excitation current in addition to the excitation power supply. The excitation system is an indispensable part of the generator equipment in the power plant. The excitation system includes the excitation power supply and the excitation device, in which the main body of the excitation power supply is the excitation machine or the excitation transformer; the excitation device is composed of the adjustment panel, control panel, demagnetization panel and rectifier panel according to different specifications, models and usage requirements.

[0003] In the prior art, the excitation device generates a large amount of heat during operation, and the heating of the electronic components inside it directly leads to a decrease in the stability of the excitation device during operation, or even burns. The two most commonly used cooling methods for the excitation device are air cooling and water cooling. Water cooling may cause grounding failure of the excitation system due to leakage of the cooling water pipe, and air cooling may affect the cooling effect due to changes in ambient temperature. At the same time, dust carried by the air is also an important factor causing abnormal working conditions of electronic components. In order to prevent dust in the air from entering the excitation device and affecting the operation of the electronic components, the conventional method is to arrange a detachable screen filter in front and behind the cabinet door of the excitation device. Since there is a lot of dust in the air, the filter needs to be replaced and cleaned frequently. The cabinet door of the excitation device needs to be opened frequently, and the electronic components will come into contact with the air to absorb the dust in the air. The static electricity carried by the dust will affect the use of the electronic components. Therefore, the present application provides an excitation device with automatic cooling function to meet the needs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an excitation device with an automatic cooling function to solve the problem that the existing excitation device using air cooling has a high frequency of filter disassembly and cleaning, and the cabinet door of the excitation device needs to be opened frequently, the electronic components will come into contact with the air and absorb dust in the air, and the static electricity carried by the dust will affect the use of the electronic components.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] An excitation device with automatic cooling function comprises a cabinet, a mounting plate is fixedly connected to the top of the cabinet, a fan is arranged on the mounting plate, a fixing hole is opened on one side of the cabinet, a sealing door is rotatably connected to the cabinet at the position of the fixing hole, a first mounting frame and a second mounting frame are fixedly connected to the side inner wall of the cabinet, the first mounting frame and the second mounting frame have the same structure, a first limiting rod is fixedly connected to one side of the first mounting frame, and a second limiting rod is fixedly connected to the other side of the first mounting frame;

[0007] The second installation frame is provided with a first filter assembly, the first filter assembly is used for performing a first filter on impurities in the air, and the first filter assembly is slidably connected to the top of the second installation frame;

[0008] The first installation frame is provided with a second filter assembly, the second filter assembly is used for filtering impurities in the air for a second time, and the second filter assembly is slidably connected to the top of the first installation frame;

[0009] The first installation frame is also provided with a guide component, which is used to guide the air sucked in by the fan, and the guide component is connected to the first installation frame.

[0010] Optionally, the first filter assembly includes a pair of second sliding plates slidably connected to the top of both sides of the second mounting frame, one end of the second sliding plate is fixedly connected to a second stop block, one side of the second sliding plate is respectively abutted against one side of the first limit rod and one side of the second limit rod, each of the second sliding plates is provided with a pair of mounting grooves, a pair of second sliding plates are slidably connected to the opposite sides of the second sliding plates with a fixed sleeve, a pair of clamping blocks are fixedly connected to both sides of the fixed sleeve, the clamping blocks are clamped with the mounting grooves, and the inner wall of the fixed sleeve is fixedly connected to the first filter plate.

[0011] Optionally, the second filter assembly includes a pair of first sliding plates slidably connected to the tops of both sides of the first mounting frame, one end of the first sliding plate is fixedly connected to a first stop block, one side of the first sliding plate is respectively abutted against one side of the first limiting rod and one side of the second limiting rod, the top and bottom of the inner wall of the first sliding plate are respectively fixedly connected to the first limiting plate and the second limiting plate, and the second filter plate is clamped on the opposite side of the first limiting plate and the second limiting plate.

[0012] Optionally, the guide assembly includes a plurality of pairs of guide plates arranged in the first installation frame, the tops of two adjacent pairs of guide plates are fixedly connected with connecting plates, and both ends of the connecting plates are fixedly connected to the tops of both sides of the first installation frame.

[0013] Optionally, the guide plate comprises a plurality of connected rectangular plates and arc-shaped plates, and the cross section of each pair of guide plates is a trumpet-shaped structure.

[0014] Optionally, a height of the second limiting rod is higher than a height of the first limiting rod.

[0015] Optionally, the second filter plate is made of filter cotton material.

[0016] Optionally, the first filter plate is made of a filter mesh material.

[0017] Optionally, the mounting groove is in an L-shaped structure, and the clamping block is adapted to the mounting groove.

[0018] Optionally, the second installation frame is located above the first installation frame.

[0019] Compared with the prior art, the utility model has at least the following beneficial effects:

[0020] In the above scheme, by setting the first filter assembly and the second filter assembly, the first filter assembly and the second filter assembly can fully filter the dust in the air sucked by the fan. After using the fan for a long time for air cooling and heat dissipation, when the first filter assembly and the second filter assembly need to be replaced, the operator only needs to rotate the sealing door to open, and pull the first filter assembly to replace the first filter assembly. At this time, the second filter assembly set still has a filtering effect on the air sucked by the fan. After replacing the first filter assembly, the second filter assembly can be pulled out for replacement. At this time, the first filter assembly set still has a filtering effect on the air sucked by the fan, so that the fan can still be in working condition while replacing the filter assembly, thereby improving work efficiency, and there is no need to open the main door of the cabinet to replace the filter assembly, thereby avoiding the electronic components in the cabinet from being exposed to the air and contacting the air to absorb dust in the air and affect the use of the electronic components.

[0021] By means of the second mounting frame, when the first filter plate needs to be replaced and cleaned during use, the operator can rotate the sealing door to open, and the bottom of the fixing sleeve can be pulled to drive the second sliding plate to move synchronously on the second mounting frame, and the second stopper provided on one side of the second sliding plate abuts against the side wall of the second limiting rod, so that the first filter plate is exposed in the field of vision, and the fixing sleeve is pushed to make the fixing sleeve move on the second sliding plate, and the mounting groove provided has a certain limiting effect on the block, and when the fixing sleeve moves, the block is driven to move synchronously inside the mounting groove until the side wall of the block abuts against the side wall of the mounting groove, and the fixing sleeve can be pulled upward to take out the fixing sleeve and the first filter plate, and the first filter plate can be cleaned or replaced, and for the installation of the first filter plate, the first filter plate and the fixing sleeve can be placed on the top of a pair of second sliding plates, so that the block is aligned with the top of the mounting groove, and the fixing sleeve, the block and the first filter plate are moved downward so that the block moves into the mounting groove, and then the fixing sleeve, the block and the first filter plate are moved to one side so that the block is engaged with the mounting groove, so as to fix the first filter plate, and the installation and disassembly structure of the first filter plate is simple, which can effectively improve the work efficiency.

[0022] The second filter plate can be fixed on the second limiting plate by pushing the second limiting plate again, and the first sliding plate and the first limiting plate can be moved synchronously on the first limiting plate to restore to their original positions on the first limiting plate, thereby realizing the replacement of the second filter plate. The structure is simple and easy to operate.

[0023] Through the multiple pairs of guide plates, the air inhaled by the fan is filtered by the first filter plate and the second filter plate in sequence and then flows through the multiple pairs of guide plates. The cross-sections of the multiple pairs of guide plates are all trumpet-shaped structures, so that the speed of air flowing through the guide plates becomes faster, which can improve the heat dissipation effect on the electronic components in the cabinet when the air flows, and accelerate the cooling speed in the cabinet. The guide plates include multiple connected rectangular plates and arc plates, which can improve the structural strength of the guide plates and increase the service life of the guide plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the present invention and, together with the description, further serve to explain the principles of the present invention and enable those skilled in the relevant art to make and use the present invention.

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the excitation device with automatic cooling function from the first perspective;

[0026] Figure 2 It is a schematic diagram of the stereoscopic structure of the excitation device with automatic cooling function from the second perspective;

[0027] Figure 3 It is a schematic diagram of the partial three-dimensional structure of the excitation device with automatic cooling function;

[0028] Figure 4 A schematic diagram of a three-dimensional structure of the first installation frame, the first limiting rod and the second limiting rod;

[0029] Figure 5 A schematic diagram of a three-dimensional structure of the first installation frame, the first sliding plate, the first limiting plate, the second limiting plate and the second filter plate;

[0030] Figure 6 A schematic diagram of a three-dimensional structure of the second installation frame, the second sliding plate and the second stopper;

[0031] Figure 7 It is a schematic diagram of the three-dimensional structure;

[0032] Figure 8 A schematic diagram of the three-dimensional structure of the fixed sleeve, the clamping block and the first filter plate;

[0033] Fig. 9 Schematic diagram of the three-dimensional structure of the guide plate assembly.

[0034] [Reference Signs]

[0035] 1. Cabinet; 2. Mounting plate; 3. Fan; 4. Fixing hole; 5. Sealing door; 6. First mounting frame; 7. Second mounting frame; 8. First limiting rod; 9. Second limiting rod; 10. First sliding plate; 11. First stopper; 12. First limiting plate; 13. Second filter plate; 14. Second limiting plate; 15. Second sliding plate; 16. Second stopper; 17. Mounting groove; 18. Fixing sleeve; 19. Block; 20. First filter plate; 21. Guide plate; 22. Connecting plate; 23. Rectangular plate; 24. Arc plate.

[0036] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0037] The following is a detailed description of an excitation device with automatic cooling function provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0038] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0039] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0040] It is to be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0041] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0042] like Figures 1 to 9As shown, an embodiment of the utility model provides an excitation device with an automatic cooling function, including a cabinet 1, a mounting plate 2 is fixedly connected to the top of the cabinet 1, a fan 3 is arranged on the mounting plate 2, the fan 3 is a prior art, specifically an axial flow suction fan, which can suck air into the cabinet 1 to dissipate heat for the electrical components in the cabinet 1, a fixing hole 4 is opened on one side of the cabinet 1, a sealing door 5 is rotatably connected to the cabinet 1 at the position of the fixing hole 4, a first mounting frame 6 and a second mounting frame 7 are fixedly connected to the side inner wall of the cabinet 1, the first mounting frame 6 and the second mounting frame 7 are both fixedly connected to the upper position of the inner wall of the cabinet 1, located at the bottom of the fan 3, the first mounting frame 6 and the second mounting frame 7 have the same structure, the second mounting frame 7 is located above the first mounting frame 6, and one side of the first mounting frame 6 is fixedly connected to the first limiting A positioning rod 8 is provided on the other side of the first mounting frame 6, and a second limiting rod 9 is fixedly connected thereto. The first limiting rod 8 is a pair and is installed on one end of the first mounting frame 6 away from the fixing hole 4 opened on the cabinet 1. The second limiting rod 9 is a pair and is installed on the other end of the first mounting frame 6. A first filter assembly is provided on the second mounting frame 7, and the first filter assembly is used for performing a first filtering of dust and other impurities in the air, and the first filter assembly is slidably connected to the top of the second mounting frame 7. A second filter assembly is provided on the first mounting frame 6, and the second filter assembly is used for performing a second filtering of dust and other impurities in the air, and the second filter assembly is slidably connected to the top of the first mounting frame 6. A guide assembly is also provided on the first mounting frame 6, and the guide assembly is used for guiding the air sucked in by the fan 3, and the guide assembly is connected to the first mounting frame 6.

[0043] By setting the first filter component and the second filter component, the first filter component and the second filter component can fully filter the dust in the air sucked by the fan 3. After using the fan 3 for air cooling for a long time, when the first filter component and the second filter component need to be replaced, the operator only needs to rotate the sealing door 5 to open, and pull the first filter component to replace the first filter component. At this time, the second filter component set still has a filtering effect on the air sucked by the fan 3. After replacing the first filter component, the second filter component can be pulled out for replacement. At this time, the first filter component set still has a filtering effect on the air sucked by the fan 3, so that the fan 3 can still be in working condition while replacing the filter component, thereby improving work efficiency, and there is no need to open the main door of the cabinet 1 to replace the filter component, thereby avoiding the electronic components in the cabinet 1 from being exposed to the air and contacting the air to absorb dust in the air and affect the use of the electronic components.

[0044] like Figure 1 , Figure 3 , Figure 7 and Figure 8As shown, the first filter assembly includes a pair of second sliding plates 15 slidably connected to the tops of both sides of the second mounting frame 7, one end of the second sliding plate 15 is fixedly connected to a second stopper 16, one side of the second sliding plate 15 is respectively abutted against one side of the first limiting rod 8 and one side of the second limiting rod 9, each second sliding plate 15 is provided with a pair of mounting grooves 17, a pair of second sliding plates 15 are slidably connected to opposite sides of a pair of fixed sleeves 18, both sides of the fixed sleeve 18 are fixedly connected to a pair of clamping blocks 19, the clamping blocks 19 are clamped with the mounting grooves 17, and the inner wall of the fixed sleeve 18 is fixedly connected to the first filter plate 20.

[0045] Through the second installation frame 7, when the first filter plate 20 needs to be replaced and cleaned during use, the operator can rotate the sealing door 5 to open it, and pull the bottom of the fixing sleeve 18 to drive the second sliding plate 15 to move synchronously on the second installation frame 7. The second stopper 16 set on one side of the second sliding plate 15 abuts against the side wall of the second limiting rod 9, so that the first filter plate 20 is exposed to the field of vision, and the fixing sleeve 18 is pushed to make the fixing sleeve 18 move on the second sliding plate 15. The installation groove 17 set has a certain limiting effect on the block 19. When the fixing sleeve 18 moves, it drives the block 19 to move synchronously inside the installation groove 17 until the side wall of the block 19 abuts against the side wall of the installation groove 17 , the fixing sleeve 18 can be pulled upward to take out the fixing sleeve 18 and the first filter plate 20, and the first filter plate 20 can be cleaned or replaced. For the installation of the first filter plate 20, the first filter plate 20 and the fixing sleeve 18 can be placed on the top of a pair of second sliding plates 15, so that the block 19 is aligned with the top of the installation groove 17, and the fixing sleeve 18, the block 19 and the first filter plate 20 are moved downward so that the block 19 moves into the installation groove 17, and then the fixing sleeve 18, the block 19 and the first filter plate 20 are moved to one side so that the block 19 is engaged with the installation groove 17, thereby fixing the first filter plate 20. The installation and disassembly structure of the first filter plate 20 is simple, which can effectively improve work efficiency.

[0046] like Figure 1 , Figure 3 , Figure 5 and Figure 6 As shown, the second filter assembly includes a first sliding plate 10 slidably connected to the tops of both sides of the first mounting frame 6, one end of the first sliding plate 10 is fixedly connected to a first stopper 11, one side of the first sliding plate 10 is respectively abutted against one side of the first limiting rod 8 and one side of the second limiting rod 9, the top and bottom of the inner wall of the first sliding plate 10 are respectively fixedly connected to the first limiting plate 12 and the second limiting plate 14, and the second filter plate 13 is clamped on the opposite side of the first limiting plate 12 and the second limiting plate 14.

[0047] Through the first installation frame 6, when replacing the second filter plate 13, the operator can rotate the sealing door 5 to open, pull the bottom of the second limiting plate 14, drive the first sliding plate 10 and the first limiting plate 12 to move synchronously on the first installation frame 6, and the first stopper 11 set at one end of the first sliding plate 10 abuts against one side of the second limiting rod 9, so that the second filter plate 13 is exposed to the field of vision, and the second filter plate 13 can be pushed toward the middle by pinching the two sides of the second filter plate 13 to move the second filter plate 13 from the second limiting plate 14 and the first limiting plate 12. The second filter plate 13 is replaced by the second limiting plate 14. The structure is simple and easy to operate.

[0048] like Figure 1 , Figure 3 , Figure 4 and Fig. 9 As shown, the guide assembly includes multiple pairs of guide plates 21 arranged in the first installation frame 6, and the tops of two adjacent pairs of guide plates 21 are fixedly connected with connecting plates 22. The two ends of the connecting plates 22 are fixedly connected to the tops of the two sides of the first installation frame 6. The guide plates 21 include multiple connected rectangular plates 23 and arc plates 24, and the cross-section of each pair of guide plates 21 is a trumpet-shaped structure.

[0049] Through the multiple pairs of guide plates 21, the air sucked in by the fan 3 is filtered in sequence through the first filter plate 20 and the second filter plate 13 and then flows through the multiple pairs of guide plates 21. The cross-sections of the multiple pairs of guide plates 21 are all trumpet-shaped structures, so that the speed of air flowing through the guide plates 21 becomes faster, which can improve the heat dissipation effect on the electronic components in the cabinet 1 when the air flows, and accelerate the cooling speed in the cabinet 1. The guide plates 21 include multiple connected rectangular plates 23 and arc plates 24, which can improve the structural strength of the guide plates 21 and increase the service life of the guide plates 21.

[0050] like Figure 5As shown, the height of the second limiting rod 9 is higher than that of the first limiting rod 8, so that when the second filter plate 13 and the first filter plate 20 are replaced, the bottom of the fixing sleeve 18 can be pulled to drive the second sliding plate 15 to move synchronously on the second mounting frame 7, and the second stopper 16 arranged on one side of the second sliding plate 15 abuts against the side wall of the second limiting rod 9, and the bottom of the second limiting plate 14 is pulled to drive the first sliding plate 10 and the first limiting plate 12 to move synchronously on the first mounting frame 6, and the first stopper 11 arranged at one end of the first sliding plate 10 abuts against one side of the second limiting rod 9, so that the second sliding plate 15 and the first sliding plate 10 will not separate from the second mounting frame 7 and the first mounting frame 6.

[0051] like Figure 6 As shown, the material of the second filter plate 13 is filter cotton material. The filter sponge has a strong adsorption capacity and can effectively filter tiny particles in the air. It is also low in price and can reduce production costs.

[0052] like Figure 8 As shown, the material of the first filter plate 20 is a filter mesh material. The filter mesh can filter larger particles in the air, and the filter mesh can be cleaned for reuse, which reduces production costs and is more environmentally friendly.

[0053] like Figure 7-Figure 8 As shown, the mounting groove 17 is L-shaped, and the clamping block 19 is adapted to the mounting groove 17. The clamping block 19 can slide in the mounting groove 17 and clamp the fixing sleeve 18 and the second sliding plate 15 with the mounting groove 17 to install the fixing sleeve 18 and the second sliding plate 15. The structure is simple and easy to operate.

[0054] The utility model provides a working principle that the first filter assembly and the second filter assembly can fully filter the dust in the air sucked by the fan 3. After using the fan 3 for air cooling for a long time, when the first filter assembly and the second filter assembly need to be replaced, the operator only needs to rotate the sealing door 5 to open it and pull the first filter assembly to replace the first filter assembly. At this time, the second filter assembly set up still has a filtering effect on the air sucked by the fan 3. After the first filter assembly is replaced, the second filter assembly can be pulled out for replacement. At this time, the first filter assembly set up still has a filtering effect on the air sucked by the fan 3, so that the fan 3 can still be in working condition while the filter assembly is replaced, thereby improving the working efficiency and there is no need to replace the cabinet 1 is opened to replace the filter assembly, so as to prevent the electronic components in the cabinet 1 from being exposed to the air and contacting the air to absorb dust in the air and affect the use of the electronic components. When the first filter plate 20 needs to be replaced and cleaned, the operator can rotate the sealing door 5 to open it, and pull the bottom of the fixing sleeve 18 to drive the second sliding plate 15 to move synchronously on the second installation frame 7. The second stopper 16 set on one side of the second sliding plate 15 abuts against the side wall of the second limiting rod 9, so that the first filter plate 20 is exposed to the field of vision, and the fixing sleeve 18 is pushed to make the fixing sleeve 18 move on the second sliding plate 15. The provided installation groove 17 has a certain limiting effect on the block 19. When the fixing sleeve 18 moves, it drives the block 19 to move synchronously inside the installation groove 17 to the block 19 When the side wall of the filter 10 abuts against the side wall of the mounting groove 17, the fixing sleeve 18 can be pulled upward to remove the fixing sleeve 18 and the first filter plate 20, and the first filter plate 20 can be cleaned or replaced. For the installation of the first filter plate 20, the first filter plate 20 and the fixing sleeve 18 can be placed on the top of a pair of second sliding plates 15 so that the block 19 is aligned with the top of the mounting groove 17, and the fixing sleeve 18, the block 19 and the first filter plate 20 are moved downward so that the block 19 moves into the mounting groove 17, and then the fixing sleeve 18, the block 19 and the first filter plate 20 are moved to one side so that the block 19 is engaged with the mounting groove 17 to fix the first filter plate 20. The installation and disassembly structure of the first filter plate 20 is simple, which can effectively improve the working efficiency. When replacing, the operator can rotate the sealing door 5 to open, pull the bottom of the second limiting plate 14, drive the first sliding plate 10 and the first limiting plate 12 to move synchronously on the first mounting frame 6, and the first stopper 11 set at one end of the first sliding plate 10 abuts against one side of the second limiting rod 9, so that the second filter plate 13 is exposed to the field of vision, and the two sides of the second filter plate 13 can be pinched and pushed toward the middle to remove the second filter plate 13 from the middle position of the second limiting plate 14 and the first limiting plate 12, and the new second filter plate 13 is laid on the second limiting plate 14, and then the four sides of the second filter plate 13 are pressed to press the side edges of the second filter plate 13 into the middle position of the first limiting plate 12 and the second limiting plate 14, so as to fix the second filter plate 13.Then push the second limit plate 14 to drive the first sliding plate 10 and the first limit plate 12 to move synchronously on the first installation frame 6 to restore the original position, so as to realize the replacement of the second filter plate 13. The structure is simple and easy to operate. The air sucked by the fan 3 passes through the first filter plate 20 and the second filter plate 13 and then flows through multiple pairs of guide plates 21. The cross-sections of the multiple pairs of guide plates 21 are all trumpet-shaped structures, so that the speed of air flowing through the guide plates 21 becomes faster, which can improve the heat dissipation effect of the electronic components in the cabinet 1 when the air flows, and accelerate the cooling speed in the cabinet 1. The guide plates 21 include multiple connected rectangular plates 23 and arc plates 24, which can improve the structural strength of the guide plates 21 and improve the service life of the guide plates 21.

[0055] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0056] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An excitation device with automatic cooling function, characterized in that: The cabinet comprises a cabinet body, a mounting plate is fixedly connected to the top of the cabinet body, a fan is arranged on the mounting plate, a fixing hole is opened on one side of the cabinet body, a sealing door is rotatably connected to the cabinet body at the position of the fixing hole, a first mounting frame and a second mounting frame are fixedly connected to the side inner wall of the cabinet body, the first mounting frame and the second mounting frame have the same structure, a first limiting rod is fixedly connected to one side of the first mounting frame, and a second limiting rod is fixedly connected to the other side of the first mounting frame; The second installation frame is provided with a first filter assembly, the first filter assembly is used for performing a first filter on impurities in the air, and the first filter assembly is slidably connected to the top of the second installation frame; The first installation frame is provided with a second filter assembly, the second filter assembly is used for filtering impurities in the air for a second time, and the second filter assembly is slidably connected to the top of the first installation frame; The first installation frame is also provided with a guide component, which is used to guide the air sucked in by the fan, and the guide component is connected to the first installation frame.

2. The excitation device with automatic cooling function according to claim 1, characterized in that: The first filter assembly includes a pair of second sliding plates slidably connected to the top of both sides of the second mounting frame, one end of the second sliding plate is fixedly connected to a second stopper, one side of the second sliding plate is respectively abutted against one side of the first limit rod and one side of the second limit rod, each of the second sliding plates is provided with a pair of mounting grooves, a pair of second sliding plates are slidably connected to the opposite sides of the second sliding plates, a pair of clamping blocks are fixedly connected to both sides of the fixing sleeve, the clamping blocks are clamped with the mounting grooves, and the first filter plate is fixedly connected to the inner wall of the fixing sleeve.

3. The excitation device with automatic cooling function according to claim 1, characterized in that: The second filter assembly includes a pair of first sliding plates slidably connected to the tops of both sides of the first mounting frame, one end of the first sliding plate is fixedly connected to a first stopper, one side of the first sliding plate is respectively abutted against one side of the first limiting rod and one side of the second limiting rod, the top and bottom of the inner wall of the first sliding plate are respectively fixedly connected to the first limiting plate and the second limiting plate, and the second filter plate is clamped on the opposite side of the first limiting plate and the second limiting plate.

4. The excitation device with automatic cooling function according to claim 1, characterized in that: The guide assembly includes a plurality of pairs of guide plates arranged in the first installation frame, the tops of two adjacent pairs of guide plates are fixedly connected with connecting plates, and the two ends of the connecting plates are fixedly connected to the tops of both sides of the first installation frame.

5. The excitation device with automatic cooling function according to claim 4, characterized in that: The guide plates include a plurality of connected rectangular plates and arc-shaped plates, and the cross section of each pair of guide plates is a trumpet-shaped structure.

6. The excitation device with automatic cooling function according to claim 1, characterized in that: The height of the second limiting rod is higher than that of the first limiting rod.

7. The excitation device with automatic cooling function according to claim 3, characterized in that: The second filter plate is made of filter cotton.

8. The excitation device with automatic cooling function according to claim 2, characterized in that: The material of the first filter plate is a filter mesh material.

9. The excitation device with automatic cooling function according to claim 2, characterized in that: The installation slot is in an L-shaped structure, and the clamping block is adapted to the installation slot.

10. The excitation device with automatic cooling function according to claim 1, characterized in that: The second installation frame is located above the first installation frame.

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