A direct current support capacitor for new energy

Abstract

This application relates to the technical field of capacitors, and in particular to a DC support capacitor for new energy applications, comprising a panel, a bottom protective shell of the panel, and a heat insulation box fixedly installed at the bottom of the panel, the heat insulation box being located inside the protective shell, the capacitor body being located inside the protective shell, and an air-cooling mechanism being provided on the outside of the heat insulation box. The air-cooling mechanism includes a delivery pump fixedly installed and connected to the bottom of the heat insulation box. By starting a motor, a fan is driven to rotate, drawing in external air through one of two air outlet slots. The drawn air, under the action of multiple fans, evenly covers the outside of the guide pipe, rapidly cooling the internal coolant and enabling recycling. This device has a simple structure, is highly practical, and does not require a continuous supply of external coolant, greatly reducing operating costs and improving the heat dissipation effect of the capacitor.

Description

Technical Field

[0001] This application relates to the technical field of capacitors, and in particular to a DC support capacitor for new energy applications. Background Technology

[0002] A capacitor is an electronic component that stores electrical energy, acting as a "charge container" in a circuit, much like a "power warehouse" that can be quickly charged and discharged. It consists of two insulated but close conductors with an insulating material in between. Its core function is to store electrical energy through the accumulation of opposite charges on the plates and release it when needed. Capacitors include DC-supported capacitors, which are key components in power electronic systems used to stabilize DC bus voltage and suppress voltage fluctuations. They are mainly used in the DC link of converters and serve as energy buffers connecting AC and DC circuits.

[0003] A search revealed that Chinese Patent Publication No. CN201220350842.6 discloses a DC-supported capacitor, which includes a structure that cools the inside of the capacitor by setting a cooling pipe on the outer wall of the capacitor module unit inside the capacitor, thus avoiding the drawback of the traditional capacitor's temperature rising too quickly and greatly extending the capacitor's service life.

[0004] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: it is difficult to air-cool the coolant; the above solutions require a continuous supply of external coolant, which cannot be circulated for cooling; if the supply is interrupted, the cooling will immediately fail, and the capacitor may be damaged due to overheating within minutes, or even cause a short circuit or fire. Utility Model Content

[0005] In order to solve the problems mentioned in the background art, this application provides a DC support capacitor for new energy.

[0006] This application provides a DC support capacitor for new energy applications, including a panel, a bottom protective shell of the panel, a heat insulation box fixedly installed at the bottom of the panel, the heat insulation box being located inside the protective shell, a capacitor body fixedly installed at the bottom of the panel, the capacitor body being located inside the protective shell, a wind-cooling mechanism being provided on the outside of the heat insulation box, and a heat dissipation mechanism being provided on the outer wall of the capacitor body. The air-cooling mechanism includes a delivery pump that is fixedly installed and connected to the bottom of the heat insulation box. The input end of the delivery pump is fixedly connected to a delivery pipe, the output end of the delivery pump is fixedly connected to a guide pipe, and the other end of the guide pipe is fixedly connected to a connecting pipe. A support frame is fixedly installed on one side of the heat insulation box, and the guide pipe is fixedly installed inside the support frame.

[0007] Optionally, a motor frame is fixedly installed inside the support frame, a motor is fixedly installed on one side of the motor frame, and a fan is fixedly connected to the output end of the motor, with the fan located on one side of the guide pipe.

[0008] Optionally, the heat dissipation mechanism includes two sets of fixing plates fixedly installed on both sides of the capacitor body, and two guide pipes are provided on both sides of the fixing plates, with the two guide pipes fixedly installed on one side of the two sets of fixing plates.

[0009] Optionally, one end of the second guide pipe is fixedly connected to the first diversion pipe, and the first diversion pipe is connected to the first delivery pipe.

[0010] Optionally, the other end of the second guide pipe is fixedly connected to a second diverter pipe, and the second diverter pipe is connected to the connecting pipe.

[0011] Optionally, a threaded tube is fixedly connected to the top of the panel, the threaded tube is connected to the connecting tube, and a threaded cap is provided at the top of the threaded tube, the threaded cap being threadedly connected to the threaded tube.

[0012] Optionally, the top of the panel has two air outlet slots, which are arranged opposite to each other.

[0013] In summary, this application includes the following beneficial technical effects: This utility model, through the arrangement of components such as a delivery pipe, a delivery pump, a guide pipe, a fan, a support frame, a motor frame, a motor, and a connecting pipe, allows for air cooling of the coolant. By starting the motor, the fan rotates, drawing in external air through one of the two air outlets. The drawn air, under the action of multiple fans, evenly covers the outside of the guide pipe, rapidly cooling the internal coolant and enabling its recycling. This device has a simple structure, high practicality, and eliminates the need for a continuous external coolant supply, significantly reducing operating costs and improving the heat dissipation effect of the capacitor.

[0014] This utility model, through the setting of components such as a fixing plate, a second guide tube, a threaded tube, a threaded cap, a first diverter tube, and a second diverter tube, allows manual rotation of the threaded cap by hand, causing it to rotate outside the threaded tube, thereby removing the threaded cap. Coolant is then manually added. When the capacitor is in use and generates high temperatures, the flowing coolant carries away the heat dissipated by the capacitor, achieving a cooling effect. This prevents the capacitor from generating excessive heat during operation, which could lead to damage, short circuits, or fires, effectively improving safety. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application; Figure 2 This is a cross-sectional structural diagram of the air-cooling mechanism in the embodiments of this application; Figure 3 This is a cross-sectional structural diagram of the heat dissipation mechanism in the embodiments of this application; Figure 4 This is an embodiment of the present application. Figure 3 Enlarged view of the structure of A in the middle.

[0016] Reference numerals: 1. Panel; 10. Protective shell; 11. Heat insulation box; 12. Capacitor body; 2. Air cooling mechanism; 201. Delivery pipe one; 202. Delivery pump; 203. Guide pipe one; 204. Fan; 205. Support frame; 206. Motor frame; 207. Motor; 208. Connecting pipe; 3. Heat dissipation mechanism; 301. Fixing plate; 302. Guide pipe two; 303. Threaded pipe; 304. Threaded cap; 305. Diverter pipe one; 306. Diverter pipe two; 4. Air outlet slot. Detailed Implementation

[0017] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0018] This application discloses a DC support capacitor for new energy applications.

[0019] like Figure 1 As shown, a DC support capacitor for new energy includes a panel 1. The top of the panel 1 has two air outlet slots 4, which are arranged opposite to each other. One air outlet slot 4 is used for air intake and the other for air exhaust. During cooling, air is drawn in through one air outlet slot 4, and during blowing, hot air is discharged through the other air outlet slot 4. The bottom of the panel 1 is protected by a shell 10. A heat insulation box 11 is also fixedly installed at the bottom of the panel 1. The heat insulation box 11 is located inside the protective shell 10. The bottom of the panel 1 is fixedly installed with a capacitor body 12, which is located inside the protective shell 10. A wind-cooling mechanism 2 is provided on the outside of the heat insulation box 11. The air-cooling mechanism 2 includes a delivery pump 202 fixedly installed and connected to the bottom of the heat insulation box 11. The input end of the delivery pump 202 is fixedly connected to a delivery pipe 201, and the output end of the delivery pump 202 is fixedly connected to a guide pipe 203. The other end of the guide pipe 203 is fixedly connected to a connecting pipe 208. A support frame 205 is fixedly installed on one side of the heat insulation box 11, and the guide pipe 203 is fixedly installed inside the support frame 205. The installed delivery pump 202 is used to provide power to cool the coolant after use, increase the circulation power, and improve the heat dissipation efficiency. Please see Figure 2A motor frame 206 is fixedly installed inside the support frame 205. A motor 207 is fixedly installed on one side of the motor frame 206. A fan 204 is fixedly connected to the output end of the motor 207. The fan 204 is located on one side of the guide pipe 203. By starting the motor 207, the fan 204 is driven to rotate, drawing in external air through one of the two air outlet slots 4. The drawn air is evenly distributed on the outside of the guide pipe 203 by the action of multiple fans 204, which quickly cools the internal coolant and achieves recycling. This device has a simple structure and strong practicality. It does not require a continuous supply of external coolant, which greatly reduces the operating cost and improves the heat dissipation effect of the capacitor.

[0020] A heat dissipation mechanism 3 is provided on the outer wall of the capacitor body 12; Please see Figure 3 The heat dissipation mechanism 3 includes two sets of fixing plates 301 fixedly installed on both sides of the capacitor body 12. The fixing plates 301 are provided with two guide pipes 302 on both sides. The guide pipes 302 are fixedly installed on one side of the two sets of fixing plates 301. The guide pipes 302 are used to hold the flowing coolant and carry away the heat dissipated by the capacitor to achieve a cooling effect. This prevents the capacitor from generating high temperature during operation, which could lead to damage or even short circuits and fires, thus effectively improving safety. The other end of the guide pipes 302 is fixedly connected to a branch pipe 306. The branch pipe 306 is connected to the connecting pipe 208. The branch pipe 306 is used to remix the coolant that has lost its function and perform unified air cooling to cool the ceramic coolant. Please see Figure 3 One end of the guide pipe 302 is fixedly connected to the split pipe 305. The split pipe 305 is connected to the delivery pipe 201. The installed split pipe 305 is used to divide the coolant into two parts and simultaneously contact both sides of the capacitor body 12 for comprehensive cooling. Please see Figure 4 A threaded tube 303 is fixedly connected to the top of panel 1. The threaded tube 303 is connected to the connecting tube 208. A threaded cap 304 is provided on the top of the threaded tube 303. The threaded cap 304 is threadedly connected to the threaded tube 303. The threaded cap 304 is rotated manually by hand, so that the threaded cap 304 rotates on the outside of the threaded tube 303, thereby removing the threaded cap 304. Then, coolant is added manually to cool down the capacitor when it is used and generates high temperature.

[0021] The implementation principle of a DC support capacitor for new energy applications according to this application embodiment is as follows: A motor 207 is started, driving a fan 204 to rotate. External air is drawn in through one of the two air outlet slots 4. The drawn air, under the action of multiple fans 204, evenly covers the outside of the first guide pipe 203, rapidly cooling the internal coolant and enabling its recycling. This device has a simple structure and strong practicality. It does not require a continuous external supply of coolant, greatly reducing operating costs and improving the capacitor's heat dissipation effect. An installed delivery pump 202 provides power to cool the coolant after use, increasing circulation power and improving heat dissipation efficiency. The second guide pipe 302 holds the flowing coolant, carrying away the heat dissipated by the capacitor, achieving a cooling effect and preventing the capacitor from generating excessive heat during operation. High temperatures can cause damage, even short circuits and fires. This system effectively improves safety. The installed shunt pipe 305 divides the coolant into two parts, simultaneously contacting both sides of the capacitor body 12 for comprehensive cooling. The installed shunt pipe 306 remixes the disused coolant for unified air cooling, cooling the ceramic capacitor. The threaded cap 304 is manually rotated outside the threaded tube 303 to remove it, allowing coolant to be added manually. This system cools the capacitor when it generates high temperatures during use. Two air outlets 4 are provided, one for air intake and one for air exhaust. During cooling, air is drawn in through one air outlet 4, and during blowing, hot air is exhausted through the other air outlet 4.

[0022] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A DC-DC supporting capacitor for new energy applications, comprising a panel (1), characterized in that: The bottom protective shell (10) of the panel (1) is fixedly installed, and a heat insulation box (11) is also fixedly installed at the bottom of the panel (1). The heat insulation box (11) is located inside the protective shell (10). A capacitor body (12) is fixedly installed at the bottom of the panel (1). The capacitor body (12) is located inside the protective shell (10). A wind-cooling mechanism (2) is provided on the outside of the heat insulation box (11). A heat dissipation mechanism (3) is provided on the outer wall of the capacitor body (12). The air-cooling mechanism (2) includes a delivery pump (202) fixedly installed and connected to the bottom of the heat insulation box (11). The input end of the delivery pump (202) is fixedly connected to a delivery pipe (201), and the output end of the delivery pump (202) is fixedly connected to a guide pipe (203). The other end of the guide pipe (203) is fixedly connected to a connecting pipe (208). A support frame (205) is fixedly installed on one side of the heat insulation box (11), and the guide pipe (203) is fixedly installed inside the support frame (205).

2. The DC support capacitor for new energy applications according to claim 1, characterized in that: A motor frame (206) is fixedly installed inside the support frame (205). A motor (207) is fixedly installed on one side of the motor frame (206). A fan (204) is fixedly connected to the output end of the motor (207). The fan (204) is located on one side of the guide pipe (203).

3. The DC support capacitor for new energy applications according to claim 1, characterized in that: The heat dissipation mechanism (3) includes two sets of fixing plates (301) fixedly installed on both sides of the capacitor body (12). The two sides of the fixing plates (301) are provided with two guide pipes (302), and the two guide pipes (302) are fixedly installed on one side of the two sets of fixing plates (301).

4. A DC support capacitor for new energy applications according to claim 3, characterized in that: One end of the second guide pipe (302) is fixedly connected to the first diversion pipe (305), and the first diversion pipe (305) is connected to the first delivery pipe (201).

5. A DC support capacitor for new energy applications according to claim 4, characterized in that: The other end of the second guide pipe (302) is fixedly connected to the second diversion pipe (306), and the second diversion pipe (306) is connected to the connecting pipe (208).

6. A DC support capacitor for new energy applications according to claim 5, characterized in that: A threaded tube (303) is fixedly connected to the top of the panel (1). The threaded tube (303) is connected to the connecting tube (208). A threaded cap (304) is provided on the top of the threaded tube (303). The threaded cap (304) is threadedly connected to the threaded tube (303).

7. A DC support capacitor for new energy applications according to claim 1, characterized in that: The top of the panel (1) has two air outlet slots (4) which are arranged opposite to each other.

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