Capacitor cabinet with heat dissipation device

Abstract

The utility model discloses a capacitor cabinet with a heat dissipation device, which comprises a cabinet body, a plurality of capacitors, a plurality of reactors, an electric appliance fan and a wind dispelling channel, the plurality of capacitors, the plurality of reactors, the electric appliance fan and the wind dispelling channel are all arranged in the cabinet body, the electric appliance fan is arranged at the bottom end of the wind dispelling channel, the electric appliance fan blows air into the wind dispelling channel, and the wind dispelling channel is communicated with the electric appliance fan. A plurality of air outlets are formed in the surface of the wind dispelling channel; the plurality of capacitors and the plurality of reactors are located above the electric appliance fan and distributed on two sides of the wind dispelling channel, the plurality of air outlets are aligned with the capacitors and the reactors, and a heat dissipation window is formed in the top end of the cabinet body. The capacitor cabinet has the advantages that the electric appliance fan is arranged at the bottom end of the wind dispelling channel, the electric appliance fan blows air into the wind dispelling channel and exhausts the air to the vicinity of the capacitor and the electric reactor from the air outlet, and a good heat dissipation effect is achieved in the cabinet body of the capacitor cabinet.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitor cabinet heat dissipation, and particularly relates to a capacitor cabinet with a heat dissipation device. Background Technique

[0002] In a low-voltage power system, capacitors are provided in a capacitor cabinet. The use of capacitors can improve the power factor of the system and reduce reactive power loss. Accidents such as damage or even explosion of capacitors during operation occur from time to time. In the lightest case, it will damage the power distribution equipment, and in the most serious case, it will damage the building and cause a fire. The explosion of capacitors is a very serious accident, which will cause economic losses to enterprises. Moreover, too high temperature and poor ventilation of capacitors are likely to cause capacitor explosion.

[0003] Most of the traditional ventilation and heat dissipation devices in capacitor cabinets are to add heat dissipation windows to the cabinet door and install 2 exhaust fans on the upper part of the back door of the capacitor cabinet. Since the heat-generating components of capacitors are installed in the middle and lower parts of the cabinet body, the heat always accumulates around the heat-generating capacitors, resulting in poor heat dissipation effect inside the cabinet body of the capacitor cabinet, and the heat dissipation effect on the reactors in the capacitor cabinet is also poor. Continuing to operate for a long time is likely to cause the explosion of the capacitor cabinet, so improvements need to be made in this regard. Content of the Utility Model

[0004] The purpose of the utility model is to provide a low-voltage switch cabinet capacitor cabinet with good heat dissipation effect inside the cabinet body.

[0005] The utility model provides a capacitor cabinet with a heat dissipation device, which includes a cabinet body, a plurality of capacitors, a plurality of reactors, an electric fan and a ventilation channel. The plurality of capacitors, the plurality of reactors, the electric fan and the ventilation channel are all arranged in the cabinet body. The electric fan is arranged at the bottom end of the ventilation channel, and the electric fan blows air into the ventilation channel. A plurality of air outlets are formed on the surface of the ventilation channel; the plurality of capacitors and reactors are all located above the electric fan and distributed on both sides of the ventilation channel, and the plurality of air outlets are aligned with the capacitors and reactors. A heat dissipation window is formed at the top end of the cabinet body.

[0006] Preferably, a cabinet body fan is arranged on the side surface of the cabinet body, and the cabinet body fan is located above the capacitors and reactors.

[0007] Preferably, a first installation bench, a second installation bench, a third installation bench and a fourth installation bench are sequentially arranged in the cabinet body from the bottom end to the top end. The electric fan is arranged on the first installation bench, the plurality of capacitors are arranged on the second installation bench, and the plurality of reactors are arranged on the third installation bench and the fourth installation bench.

[0008] Preferably, two capacitors are provided, namely a first capacitor and a second capacitor, which are respectively located on both sides of the air-diverting channel; two reactors are provided, namely a first reactor and a second reactor. The first reactor is arranged on the third mounting bracket and is directly above the first capacitor, and the second reactor is arranged on the fourth mounting bracket and is directly above the first reactor.

[0009] Preferably, the top end of the air-diverting channel is flush with the top end of the first reactor. The top end of the air-diverting channel is provided as an inclined surface, and the top end of the air-diverting channel faces the second reactor.

[0010] Preferably, a pair of mounting plates are fixedly arranged on the second mounting bracket. The two mounting plates are located on both sides of the air-diverting channel, and the first capacitor and the second capacitor are respectively detachably and fixedly arranged on the two mounting plates.

[0011] Preferably, the first capacitor and the second capacitor are respectively fixed to the mounting plates by bolt locking. Preferably, ventilation windows are formed at the bottom ends on both sides of the cabinet body.

[0012] As can be seen from the above description of the present invention, the present invention has the following beneficial effects:

[0013] 1. The electric appliance fan is arranged at the bottom end of the air-diverting channel. A plurality of capacitors and a plurality of reactors are arranged on both sides of the air-diverting channel. Air outlet openings are formed on the surface of the air-diverting channel and are aligned with each capacitor and each reactor. The electric appliance fan blows air into the air-diverting channel and discharges it from the air outlet openings to the vicinity of the capacitors and the reactors, so as to take away the hot air near the capacitors and the reactors, and has a good heat dissipation effect on the inside of the capacitor cabinet.

[0014] 2. Mounting plates are fixedly arranged on the second mounting bracket, and the capacitors are fixedly arranged on the mounting plates by bolt locking. When a capacitor fails or the heat dissipation function of the capacitor is poor, the capacitor mounted on the mounting plate can be directly replaced.

[0015] 3. A cabinet body fan is arranged on one side of the cabinet body, a heat dissipation window is formed at the top end of the cabinet body, and ventilation windows are formed at the bottom ends on both sides of the cabinet body, so as to facilitate the heat dissipation inside the cabinet body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the first mounting bracket, the second mounting bracket, the third mounting bracket and the fourth mounting bracket in the embodiment;

[0017] Figure 2 It is a front view of a capacitor cabinet with a heat dissipation device in the embodiment;

[0018] Figure 3It is an embodiment Figure 1 The partial enlarged view at position A in

[0019] Figure 4 It is the overall structural schematic diagram of a capacitor cabinet with a heat dissipation device in an embodiment;

[0020] Figure 5 It is an embodiment Figure 4 The partial enlarged view at position B in

[0021] Reference numerals: 1, cabinet body; 11, first installation bench; 12, second installation bench; 13, third installation bench; 14, fourth installation bench; 15, mounting plate; 16, ventilation window; 17, heat dissipation window; 2, electrical fan; 3, air diversion channel; 31, air outlet; 32, inclined surface; 4, first capacitor; 5, second capacitor; ...... 8, cabinet body fan. Specific implementation manners

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the following further describes the present utility model in detail with reference to the attached Figures 1-5 drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0023] Referring to Figure 1 , Figure 2 and Figure 3 , a capacitor cabinet with a heat dissipation device includes a cabinet body 1, two capacitors, two reactors, an electrical fan 2 and an air diversion channel 3. The two capacitors are respectively a first capacitor 4 and a second capacitor 5, and the two reactors are respectively a first reactor 6 and a second reactor 7. Inside the cabinet body 1, a first installation bench 11, a second installation bench 12, a third installation bench 13 and a fourth installation bench 14 are sequentially arranged from the bottom end to the top end, and the first installation bench 11, the second installation bench 12, the third installation bench 13 and the fourth installation bench 14 are all horizontally arranged inside the cabinet body 1.

[0024] The electrical fan 2 is arranged at the center of the surface of the first installation bench 11, the air diversion channel 3 is vertically arranged at the top of the electrical fan 2, the first capacitor 4 and the second capacitor 5 are both arranged on the second installation bench 12, and the first capacitor 4 and the second capacitor 5 are respectively located on both sides of the air diversion channel 3. The first reactor 6 is fixedly arranged on the third installation bench 13 and is located directly above the first capacitor 4, and the second reactor 7 is fixedly arranged on the fourth installation bench 14 and is located directly above the first reactor 6.

[0025] In order to ensure the stable installation of the first capacitor 4 and the second capacitor 5 on the first mounting bracket 11, a pair of mounting plates 15 are horizontally and fixedly arranged on the first mounting bracket 11, and the first capacitor 4 and the second capacitor 5 are respectively fixed to the mounting plates 15 by bolt locking. When the capacitor fails and its heat dissipation function is poor, the first capacitor 4 and the second capacitor 5 mounted on the mounting plates 15 can be replaced. Fixing the first capacitor 4 and the second capacitor 5 to the mounting plates 15 by bolt locking not only makes the first capacitor 4 and the second capacitor 5 firmly installed in the cabinet 1, but also has the advantage of being convenient for disassembly and replacement.

[0026] Referring to Figure 2 、 Figure 4 and Figure 5 , a number of air outlets 31 are provided on the surface of the air diversion channel 3. The number of air outlets 31 on the surface of the air diversion channel 3 are aligned with the first capacitor 4, the second capacitor 5, the first reactor 6 and the second reactor 7. The top end of the air diversion channel 3 is set to be flush with the top surface of the first reactor 6, and the top end of the air diversion channel 3 is set as an inclined surface 32, and the inclined surface 32 at the top end of the air diversion channel 3 faces the second reactor 7. And a cabinet fan 8 is provided on one side of the cabinet 1, and the cabinet fan 8 is located above the second reactor 7. The electrical fan 2 and the cabinet fan 8 are started to work simultaneously. The electrical fan 2 blows air into the air diversion channel 3, and the air blown into the air diversion channel 3 is discharged from each air outlet 31 to take away the heat generated by the first capacitor 4, the second capacitor 5, the first reactor 6 and the second reactor 7. Under the action of the cabinet fan 8, the air convection can make the inside of the cabinet 1 in a negative pressure state, forming a suction force to continuously discharge the hot air inside the cabinet 1, so as to achieve the effect of ventilation and cooling inside the cabinet 1. The hot air inside the cabinet 1 is circulated out through the electrical fan 2 and the cabinet fan 8 to dissipate the heat of the first capacitor 4, the second capacitor 5, the first reactor 6 and the second reactor 7.

[0027] Ventilation windows 16 are formed at the bottom ends on both sides of the cabinet 1, and a heat dissipation window 17 is formed at the top end of the cabinet 1. The air flow inside the cabinet 1 can convect with the outside through the ventilation windows 16 at the bottom ends on both sides of the cabinet 1. At the same time, due to the principle of hot air rising, the hot air inside the cabinet 1 can be discharged from the heat dissipation window 17 at the top end of the cabinet 1 after rising, thereby increasing the heat dissipation channels inside the cabinet 1.

[0028] The specific implementation principle of the embodiment of the present application is as follows: the first capacitor 4 and the second capacitor 5 are fixed to the two mounting plates 15 by means of bolts. When the first capacitor 4, the second capacitor 5, the first inductor 6 and the second inductor 7 in the cabinet 1 start working and generate heat, the generated heat can be convected with the outside world through the ventilation windows 16 at the bottom ends of both sides of the cabinet 1, or discharged from the heat dissipation windows 17 at the top end of the cabinet 1 as the heat rises.

[0029] At this time, the electrical fan 2 and the cabinet fan 8 start working. The electrical fan 2 blows air into the ventilation duct 3. The air blown into the ventilation duct 3 is discharged from the air outlet 31 to the vicinity of the first capacitor 4, the second capacitor 5, the first reactor 6, and the second reactor 7, thereby removing the heat near the first capacitor 4, the second capacitor 5, the first reactor 6, and the second reactor 7. Under the action of the cabinet fan 8, air convection is used to put the cabinet 1 in a negative pressure state, forming a suction force; as the heat in the cabinet 1 rises, the cabinet fan 8 gradually discharges the heat in the cabinet 1, thereby achieving the effect of ventilation and cooling in the cabinet 1. The setting of the ventilation duct 3 allows the air blown by the electrical fan 2 to flow precisely to the vicinity of the first capacitor 4, the second capacitor 5, the first reactor 6, and the second reactor 7, thereby having a good heat dissipation effect near the first capacitor 4, the second capacitor 5, the first reactor 6, and the second reactor 7.

[0030] The above is an exemplary description of the present invention in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all protected by the present invention.

Claims

1. A capacitor cabinet with a heat dissipation device, characterized in that: It includes a cabinet body, several capacitors, several reactors, an electrical appliance fan and a wind diversion channel. The several capacitors, several reactors, the electrical appliance fan and the wind diversion channel are all arranged in the cabinet body. The electrical appliance fan is arranged at the bottom end of the wind diversion channel, and the electrical appliance fan blows air into the wind diversion channel. Several air outlets are formed on the surface of the wind diversion channel. The several capacitors and reactors are both located above the electrical appliance fan and distributed on both sides of the wind diversion channel. The several air outlets are aligned with the capacitors and reactors. A heat dissipation window is formed at the top end of the cabinet body.

2. The capacitor cabinet with a heat dissipation device according to claim 1, wherein: A cabinet body fan is arranged on the side surface of the cabinet body, and the cabinet body fan is located above the capacitors and reactors.

3. The capacitor cabinet with a heat dissipation device according to claim 2, wherein: A first installation bench, a second installation bench, a third installation bench and a fourth installation bench are sequentially arranged in the cabinet body from the bottom end to the top end. The electrical appliance fan is arranged on the first installation bench. The several capacitors are arranged on the second installation bench. The several reactors are arranged on the third installation bench and the fourth installation bench.

4. The capacitor cabinet with a heat dissipation device according to claim 3, characterized in that: There are two capacitors, namely a first capacitor and a second capacitor. The first capacitor and the second capacitor are respectively located on both sides of the wind diversion channel. There are two reactors, namely a first reactor and a second reactor. The first reactor is arranged on the third installation bench and directly above the first capacitor. The second reactor is arranged on the fourth installation bench and directly above the first reactor.

5. The capacitor cabinet with a heat dissipation device according to claim 4, characterized in that: The top end of the wind diversion channel is flush with the top end of the first reactor. The top end of the wind diversion channel is set as an inclined surface, and the top end of the wind diversion channel faces the second reactor.

6. The capacitor cabinet with a heat dissipation device according to claim 4, wherein: A pair of mounting plates are fixedly arranged on the second installation bench. The two mounting plates are located on both sides of the wind diversion channel. The first capacitor and the second capacitor are respectively detachably and fixedly arranged on the two mounting plates.

7. The capacitor cabinet with a heat dissipation device according to claim 6, characterized in that: The first capacitor and the second capacitor are respectively fixed to the mounting plates by bolt locking.

8. The capacitor cabinet with a heat dissipation device according to claim 1, characterized in that: Ventilation windows are formed at the bottom ends on both sides of the cabinet body.

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