Micro-grid energy conversion device
By designing an inverted √-shaped brush and a casing structure, the problem of stubborn dust being difficult to clean and moisture entering the dustproof mesh in microgrid energy storage devices is solved, achieving efficient heat dissipation and moisture protection for the equipment and extending its lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU JIANDE YIFANG ENERGY TECH CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-05-12
AI Technical Summary
Existing microgrid energy storage devices have dust screens that are difficult to effectively remove stubborn dust, and the long-term open air inlets of ventilation ducts allow moisture to enter the energy storage tank, affecting the equipment's lifespan and reliability.
The design incorporates an inverted √-shaped first and second brush bristle cleaning dust filter, combined with a desiccant layer and a sealable housing structure, to effectively filter and remove dust and moisture.
It effectively removes stubborn dust from the dustproof screen, prevents moisture from entering the energy storage tank, extends the life of the dustproof screen, ensures the equipment is dry, and avoids electrical failures and corrosion.
Smart Images

Figure CN224233986U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of microgrid technology, and in particular to a microgrid energy conversion device. Background Technology
[0002] A microgrid is a small-scale, autonomous power grid system, typically composed of multiple small generating units, energy storage devices, and load devices. Energy storage devices are an important component of a microgrid, used to store excess electrical energy so that it can be provided with power when needed.
[0003] Existing Chinese patent (CN222465161U) discloses a microgrid control device:
[0004] By installing left and right air ducts connected to the outside inside the enclosure, and then installing heat dissipation and dustproof screens inside the left and right air ducts, ventilation and heat dissipation of the enclosure are facilitated. By setting the blower to a rotatable structure, the direction of airflow in the left and right air ducts can be easily changed, thereby blowing away the dust and debris accumulated on the outside of the heat dissipation and dustproof screens and effectively preventing clogging of the screens. However, this method still has the following drawbacks:
[0005] Cleaning dust screens by blowing or patting them only provides a basic cleaning effect. It is difficult to remove stubborn dust and other impurities. Over time, a large amount of dust and other impurities will accumulate on the dust screen, thus reducing its lifespan.
[0006] Meanwhile, the air inlets of the existing ventilation ducts are always open. Due to the high humidity in the mountains at night, moisture will enter the energy storage box through the ventilation ducts, causing the equipment and electrical components inside the energy storage box to become damp, which will have a great impact on subsequent use. Utility Model Content
[0007] To overcome the shortcomings of cleaning dust screens by blowing or patting, which only achieves a simple cleaning effect and is difficult to remove stubborn dust and other impurities, this utility model provides a microgrid energy conversion device.
[0008] The technical solution is as follows: A microgrid energy conversion device includes an energy storage box, ventilation ducts, and cooling fans; several ventilation ducts are connected to the energy storage box; several cooling fans are installed in each ventilation duct; it also includes a desiccant layer, a dustproof net, a push rod, a connecting plate, and first brush bristles; a desiccant layer is inserted into each ventilation duct; a dustproof net is inserted into each ventilation duct, and the cooling fans are located between the desiccant layer and the dustproof net; a push rod is fixedly connected to the outside of each ventilation duct; a connecting plate is fixedly connected to the telescopic part of each push rod; multiple first brush bristles are fixedly connected to each connecting plate, and the first brush bristles are set in an inverted √ shape.
[0009] Optionally, it also includes heating elements; each ventilation duct is equipped with a heating element, and the heating element is located above the desiccant layer.
[0010] Optionally, it also includes springs and covers; each connecting plate has several springs fixedly connected to it; each connecting plate has a cover slidably connected to it, and the cover is fixedly connected to one end of the spring, and the cover has a through groove corresponding to the first bristles.
[0011] Optionally, it also includes a rack, a rotating rod, a lead screw, a spur gear, a U-shaped plate, and second bristles; each connecting plate is fixedly connected to a rack; each ventilation duct has a rotating rod rotatably connected to its lower inner side; each ventilation duct has a lead screw rotatably connected to its lower inner side, and the lead screw is located in front of the rotating rod; each lead screw is fixedly connected to a spur gear, and the spur gear cooperates with the rack; each lead screw is screwed to a U-shaped plate, and the U-shaped plate is slidably connected to the rotating rod; each rotating rod is fixedly connected to multiple second bristles.
[0012] The beneficial effects of this utility model are:
[0013] The vertically downward-facing air inlet of the ventilation duct is a significant advantage over a horizontal one. In rainy weather, rainwater would fall on the inlet, causing dampness inside the duct and affecting the dust filter. Over time, this can lead to rust on both the duct and the filter. Furthermore, in windy conditions, it reduces the accumulation of dust, leaves, and other debris on the filter. The connecting plate further prevents the ventilation duct from sucking in dust and other impurities from the ground during air extraction.
[0014] The dust adhering to the dustproof net is cleaned by brushing with the second bristles. This avoids the problem of the existing technology, which usually cleans the dustproof net by blowing or beating. This method can only achieve a simple cleaning effect and is difficult to remove stubborn dust and other impurities. Over time, a large amount of dust and other impurities will stick to the dustproof net, which will reduce the service life of the dustproof net.
[0015] The enclosure will block the air inlet of the ventilation duct, thus preventing moisture from entering the energy storage tank after the equipment and electrical components inside have stopped working. If the air inlet of the ventilation duct remains open, the desiccant layer will easily become saturated due to the high humidity in the mountains at night, reducing its adsorption effect. This will allow moisture to enter the energy storage tank through the ventilation duct, causing the equipment and electrical components inside to become damp, which will have a significant impact on subsequent use. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the first embodiment of the microgrid energy conversion device disclosed in this utility model;
[0017] Figure 2 This is a schematic diagram of the second type of microgrid energy conversion device disclosed in this utility model;
[0018] Figure 3 This is a first partial cross-sectional view of the microgrid energy conversion device of this utility model;
[0019] Figure 4 This is a second partial cross-sectional view of the microgrid energy conversion device of this utility model;
[0020] Figure 5 This is an enlarged view of point A of the microgrid energy conversion device disclosed in this utility model;
[0021] Figure 6 This is a third partial cross-sectional view of the microgrid energy conversion device disclosed in this utility model;
[0022] Figure 7 This is an enlarged view of section B of the microgrid energy conversion device disclosed in this utility model.
[0023] The markings in the attached diagram are: 1-energy storage box, 2-ventilation duct, 3-cooling fan, 4-desiccant layer, 5-heating tube, 6-dustproof net, 7-push rod, 8-connecting plate, 9-first brush bristles, 10-spring, 11-cover, 12-rack, 13-rotating rod, 14-lead screw, 15-spur gear, 16-U-shaped plate, 17-second brush bristles. Detailed Implementation
[0024] The embodiments of this utility model will be described below with reference to the accompanying drawings.
[0025] Example 1
[0026] A microgrid energy conversion device, such as Figure 1-7As shown, it includes an energy storage box 1, ventilation ducts 2, and cooling fans 3; the energy storage box 1 is connected to two ventilation ducts 2 that are symmetrically distributed from left to right; each ventilation duct 2 is equipped with two cooling fans 3 that are symmetrically distributed from front to back;
[0027] It also includes a desiccant layer 4, a dustproof net 6, a push rod 7, a connecting plate 8, and first brush bristles 9; each ventilation duct 2 has a desiccant layer 4 inserted into it; each ventilation duct 2 has a dustproof net 6 inserted into it, and the cooling fan 3 is located between the desiccant layer 4 and the dustproof net 6; each ventilation duct 2 has a push rod 7 bolted to its outer side; each push rod 7 has a connecting plate 8 fixedly connected to its telescopic part; each connecting plate 8 has multiple first brush bristles 9 fixedly connected to it in a matrix distribution, and the first brush bristles 9 are set in an inverted √ shape.
[0028] It also includes a heating tube 5; each ventilation duct 2 is equipped with a heating tube 5, and the heating tube 5 is located above the desiccant layer 4.
[0029] It also includes springs 10 and covers 11; each connecting plate 8 has four springs 10 fixedly connected in a matrix arrangement; each connecting plate 8 has a cover 11 slidably connected to it, and the cover 11 is fixedly connected to one end of the spring 10, and the cover 11 has a through groove corresponding to the first bristle 9.
[0030] It also includes a rack 12, a rotating rod 13, a lead screw 14, a spur gear 15, a U-shaped plate 16, and second bristles 17; a rack 12 is fixedly connected to each connecting plate 8; a rotating rod 13 is rotatably connected to the lower inner side of each ventilation duct 2; a lead screw 14 is rotatably connected to the lower inner side of each ventilation duct 2, and the lead screw 14 is located in front of the rotating rod 13; a spur gear 15 is fixedly connected to each lead screw 14, and the spur gear 15 cooperates with the rack 12; a U-shaped plate 16 is screwed onto each lead screw 14, and the U-shaped plate 16 is slidably connected to the rotating rod 13; and multiple second bristles 17 arranged in a matrix are fixedly connected to each rotating rod 13.
[0031] When using this microgrid energy conversion device, when the equipment and electrical components inside the energy storage tank 1 are working, the left cooling fan 3 is controlled to work. The cooling fan 3 will generate suction in the left ventilation duct 2. At this time, the outside air will enter the energy storage tank 1 through the dustproof net 6 and the desiccant layer 4 on the left. During this process, the right cooling fan 3 works in conjunction with the left cooling fan 3. The cooling fan 3 will generate suction in the right ventilation duct 2, thereby drawing out the hot air from the energy storage tank 1. In this way, through the cooperation of the left cooling fan 3 and the right cooling fan 3, the air inside the energy storage tank 1 is in a good circulation state, thereby achieving a better heat dissipation effect for the equipment and electrical components inside the energy storage tank 1.
[0032] During the process of air entering the energy storage box 1 through the ventilation duct 2, the dustproof net 6 intercepts dust and other impurities in the air, while the desiccant layer 4 filters the humid air, removing moisture from the air. Thus, under the action of the dustproof net 6 and the desiccant layer 4, dust and other impurities and moisture in the air are prevented from entering the energy storage box 1, which would result in high humidity inside the energy storage box 1. A humid environment may cause the electrical components inside the energy storage box 1 to become damp or corroded, leading to electrical faults. It may also cause short circuits or leakage between wires or components on the circuit board.
[0033] Meanwhile, the vertical downward orientation of the air inlet of the ventilation duct 2 is a significant improvement over the horizontal orientation. In rainy weather, rainwater would fall into the air inlet of the ventilation duct 2, causing the inside of the ventilation duct 2 to become damp. Rainwater would also cause the dustproof net 6 to become damp, which could lead to rust inside the ventilation duct 2 and the dustproof net 6 over time. In windy weather, this also reduces the amount of dust and impurities such as leaves adhering to the dustproof net 6. Furthermore, the connecting plate 8 prevents the ventilation duct 2 from easily sucking in dust and other impurities from the ground when it is drawing in air.
[0034] Then, at night, when the equipment and electrical components inside the energy storage box 1 stop working, the control push rod 7 moves the connecting plate 8 upward. The first bristles 9, spring 10, cover 11, and rack 12 move synchronously with the connecting plate 8. The rack 12 then meshes with the spur gear 15, causing the spur gear 15 to rotate. The lead screw 14 rotates synchronously with the spur gear 15. During this process, due to the limiting effect of the rotating rod 13 on the U-shaped plate 16, the rotating lead screw 14 causes the U-shaped plate 16 to slide closer to the energy storage box 1 on the rotating rod 13. The second bristles 17 follow the U-shaped plate 16... The plate 16 moves synchronously, and the second brush 17 brushes the dustproof net 6, cleaning the dust and other impurities attached to the dustproof net 6. In this way, the dust attached to the dustproof net 6 is cleaned by brushing with the second brush 17, which avoids the existing technology of cleaning the dustproof net 6 by blowing or patting. This method can only achieve a simple cleaning effect, and it is difficult to remove stubborn dust and other impurities. Over time, a large amount of dust and other impurities will stick to the dustproof net 6, which will reduce the service life of the dustproof net 6.
[0035] Then, as the connecting plate 8 continues to move upward, the lower side of the ventilation duct 2 will contact the cover 11, forcing the cover 11 to move downward. The spring 10 is compressed, and the first bristles 9 will extend from the through groove on the cover 11. The first bristles 9 will then enter the mesh of the dustproof net 6, thereby clearing the dustproof net 6 and preventing dust and other impurities from clogging it and affecting air passage. After the cover 11 contacts the surface of the connecting plate 8, the push rod 7 will no longer move the connecting plate 8 upward. At this time, the cover 11 will contact the ventilation duct. The lower surface of 2 is attached and acts as a seal for the air inlet of the ventilation duct 2, thereby preventing the equipment and electrical components inside the energy storage box 1 from being exposed to moisture after they have stopped working. If the air inlet of the ventilation duct 2 is always open, the desiccant layer 4 will easily become saturated due to the high humidity in the mountains at night, which will reduce the adsorption effect of the desiccant layer 4. This will cause moisture to enter the energy storage box 1 through the ventilation duct 2, resulting in dampness of the equipment and electrical components inside the energy storage box 1, which will have a great impact on subsequent use.
[0036] It is explained here that during the process of the connecting plate 8 moving down and resetting, since the first brush bristles 9 are located in the mesh of the dustproof net 6 and the first brush bristles 9 are set in an inverted √ shape, the first brush bristles 9 can carry out the dust particles and impurities in the mesh, thereby achieving a better unblocking effect. At the same time, when the desiccant layer 4 is relatively saturated, the desiccant layer 4 can be dried by the heating tube 5, so that the moisture in the desiccant layer 4 is removed, thereby making the desiccant layer 4 reusable.
[0037] It should be noted that the cover 11 can protect the first brush bristles 9, preventing a large area of the first brush bristles 9 from being exposed to the outside for a long time, which would cause impurities such as leaves to fall on the first brush bristles 9 and thus affect the use of the first brush bristles 9. At the same time, when it is necessary to replace the desiccant layer 4 and the dustproof net 6, the staff can simply pull the desiccant layer 4 and the dustproof net 6 out of the ventilation duct 2, thus achieving a convenient and quick replacement.
[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A microgrid energy conversion device, comprising an energy storage box (1), ventilation ducts (2), and cooling fans (3); the energy storage box (1) is connected to a plurality of ventilation ducts (2); each ventilation duct (2) is equipped with a plurality of cooling fans (3); characterized in that, It also includes a desiccant layer (4), a dustproof net (6), a push rod (7), a connecting plate (8), and first bristles (9); a desiccant layer (4) is inserted into each ventilation duct (2); a dustproof net (6) is inserted into each ventilation duct (2), and the cooling fan (3) is located between the desiccant layer (4) and the dustproof net (6); a push rod (7) is fixedly connected to the outside of each ventilation duct (2); a connecting plate (8) is fixedly connected to the telescopic part of each push rod (7); multiple first bristles (9) are fixedly connected to each connecting plate (8), and the first bristles (9) are set in an inverted √ shape.
2. The microgrid energy conversion device according to claim 1, characterized in that, It also includes a heating tube (5); each ventilation duct (2) is equipped with a heating tube (5) and the heating tube (5) is located above the desiccant layer (4).
3. The microgrid energy conversion device according to claim 1, characterized in that, It also includes springs (10) and covers (11); several springs (10) are fixedly connected in each connecting plate (8); a cover (11) is slidably connected on each connecting plate (8), and the cover (11) is fixedly connected to one end of the spring (10), and a through groove corresponding to the first bristle (9) is opened on the cover (11).
4. A microgrid energy conversion device according to claim 3, characterized in that, It also includes a rack (12), a rotating rod (13), a lead screw (14), a spur gear (15), a U-shaped plate (16), and a second brush (17); a rack (12) is fixedly connected to each connecting plate (8); a rotating rod (13) is rotatably connected to the lower inner side of each ventilation duct (2); a lead screw (14) is rotatably connected to the lower inner side of each ventilation duct (2), and the lead screw (14) is located in front of the rotating rod (13); a spur gear (15) is fixedly connected to each lead screw (14), and the spur gear (15) cooperates with the rack (12); a U-shaped plate (16) is screwed onto each lead screw (14), and the U-shaped plate (16) is slidably connected to the rotating rod (13); a plurality of second brushes (17) are fixedly connected to each rotating rod (13).