Reactive compensation capacitor device

Abstract

The utility model relates to the technical field of capacitor devices, in particular to a reactive compensation capacitor device which comprises a device shell, capacitors, a heat dissipation mechanism and a wiring assembly, the capacitors are all arranged in the device shell, the heat dissipation mechanism comprises a heat dissipation isolation pad and a heat insulation block, the heat dissipation isolation pad is fixedly connected between the outer surfaces of the capacitors, and the heat insulation block is fixedly connected between the outer surfaces of the capacitors. The heat insulation block is fixedly connected with an isolation strip, the heat insulation block is fixedly connected between the outer surfaces of the capacitors through the heat insulation strip, and the side face of the heat insulation block is fixedly connected to the heat dissipation isolation pad. The capacitors are transversely isolated in the device shell at equal intervals through the heat dissipation isolation pads, the first grooves are formed in the heat dissipation isolation pads to isolate the heat dissipation isolation pads from the capacitors, the capacitors continue to be longitudinally isolated at equal intervals through the heat insulation blocks, the heat dissipation fans are installed on the heat insulation blocks, heat of the first heat dissipation holes is sucked into the second heat dissipation holes, and the heat dissipation efficiency is improved. And then the heat is discharged out of the device through the through holes, so that the heat generated in the device can be effectively and timely discharged.

Description

TECHNICAL FIELD

[0001] The application relates to the field of capacitor devices, in particular to a capacitor device for reactive power compensation. BACKGROUND

[0002] Reactive power refers to the fact that in an AC circuit with reactance, the electric field or magnetic field absorbs energy from the power supply for part of the time in a cycle, and releases energy for another part of the time, the average power is zero in the whole cycle, but the energy is exchanged between the power supply and the reactance element (capacitor, inductor) without stop, and the maximum value of the exchange rate is the "reactive power". The reactive power is not useless power, and it is very useful. With the continuous progress of society and the rapid development of electrical and mechanical systems, industrial electricity consumption is increasing, and the cost of electricity consumption of enterprises is also increasing. The quality of the power grid has decreased significantly. In order to further improve the quality of the power grid and the safety of user appliances, and reduce the cost of electricity, many enterprises have begun to use reactive power compensation capacitors.

[0003] However, the existing reactive power compensation capacitors have certain disadvantages in use. The existing reactive power compensation capacitors generate a certain amount of heat during use. When multiple capacitors are arranged and used at the same time, a large amount of heat is accumulated and difficult to remove, so that the capacitors are damaged or even exploded due to excessive heat. Therefore, the application provides a capacitor device for reactive power compensation. CONTENT OF THE INVENTION

[0004] The capacitor device for reactive power compensation provided by the application can solve the technical problem that multiple capacitors are arranged and used at the same time, a large amount of heat is accumulated and difficult to remove, so that the capacitors are damaged or even exploded due to excessive heat.

[0005] The capacitor device for reactive power compensation provided by the application comprises a device shell, capacitors, a heat dissipation mechanism and a wiring assembly. The capacitors are arranged in the device shell. The heat dissipation mechanism comprises heat dissipation spacers and heat insulation blocks. The heat dissipation spacers are fixedly connected between the outer surfaces of the capacitors. The heat insulation blocks are fixedly connected with isolation strips. The heat insulation blocks are fixedly connected between the outer surfaces of the capacitors through the heat insulation strips, and the side surfaces of the heat insulation blocks are fixedly connected to the heat dissipation spacers. The isolation strips form gaps between the capacitors and the heat insulation blocks. The wiring assembly is used for wiring and power supply of the device.

[0006] The technical solution described above in the application has at least the following technical effects:

[0007] 1. This application uses a heat dissipation pad to laterally and equidistantly isolate the capacitor within the device casing. Simultaneously, a first groove is formed on the heat dissipation pad to further isolate the pad from the capacitor, increasing the gap for better ventilation and heat dissipation. A heat insulation block further equidistantly isolates the capacitor longitudinally, and with the isolation strip on the heat insulation block, the capacitor is further longitudinally isolated, increasing ventilation. Furthermore, a second groove is provided on the heat insulation block, and a cooling fan is installed within the second groove. When the cooling fan operates, it draws heat from the first heat dissipation hole into the second heat dissipation hole, and then discharges it outside the device through the through-hole. This effectively and promptly dissipates the heat generated within the device, maintaining the normal operation of the capacitor.

[0008] 2. The present application makes wiring more convenient by using the terminal block and terminal post on the device housing. The connection between the wire and the device is more secure and less prone to detachment by setting the terminal tube on the terminal block. At the same time, the installation buckle on the side of the terminal block and the hook on the side of the device housing facilitate the installation, disassembly and maintenance of the capacitor device.

[0009] In some embodiments, a plurality of first grooves are uniformly formed on the heat dissipation pad, and a first heat dissipation hole is uniformly formed in the first groove, which communicates with the gap between the capacitor and the heat insulation block. A second heat dissipation hole communicating with the first heat dissipation hole is also formed on the side of the heat dissipation pad.

[0010] In some embodiments, a second groove is provided on the heat insulation block, and a cooling fan is fitted into the second groove.

[0011] In some embodiments, a lead sleeve is fixedly connected to the top of the capacitor.

[0012] In some embodiments, the wiring assembly includes two sets of terminals and a terminal block, the terminal block being fixedly connected to the top of the device housing, one set of terminals being fixedly connected to the device housing near the terminal block, and the other set of terminals being fixedly connected to the device housing away from the terminal block.

[0013] In some embodiments, a plurality of terminal blocks are fixedly connected to the terminal block, and the bottom surface of the terminal block is fixedly connected to the outlet sleeve, and an installation buckle is fixedly connected to the side of the terminal block.

[0014] In some embodiments, the device housing has a plurality of through holes evenly distributed on it, and a hook is fixedly connected to one side of the device housing. Attached Figure Description

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0016] Figure 1 A structure schematic diagram of a capacitor device for reactive power compensation provided by the embodiments of the present application;

[0017] Figure 2 An internal structure schematic diagram of a capacitor device for reactive power compensation provided by the embodiments of the present application;

[0018] Figure 3 A heat dissipation mechanism structure schematic diagram of a capacitor device for reactive power compensation provided by the embodiments of the present application;

[0019] Figure 4 A heat insulation block structure schematic diagram of a capacitor device for reactive power compensation provided by the embodiments of the present application.

[0020] In the drawings, the reference signs are as follows: 1, device shell; 12, capacitor; 13, hook; 14, through hole; 2, heat dissipation mechanism; 21, heat dissipation spacer; 211, first groove; 212, first heat dissipation hole; 213, second heat dissipation hole; 22, heat insulation block; 221, isolation strip; 222, second groove; 3, wiring assembly; 31, wiring post; 32, wiring block; 321, wiring cylinder; 322, mounting buckle; 4, heat dissipation fan; 5, outlet sleeve. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects of the present application more clearly understood, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0023] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0024] The reactive compensation capacitor device is formed by a plurality of capacitor units in series or parallel, has a large capacity, generally uses an aluminum electrolytic capacitor or a polypropylene film capacitor, has the advantages of large capacity, small size, low power consumption, is easy to install in a power system, has a low failure rate, is suitable for small and medium-sized power loads, and reduces the loss of reactive power by adjusting the phase difference between reactive power and active power to a minimum. The device uses a capacitor or an inductor for compensation, introduces or eliminates the capacitor or the inductor at an appropriate time according to the demand of the power system, makes the phases of voltage and current consistent, and makes the power factor close to 1, thereby achieving the effect of reactive power compensation.

[0025] The reactive compensation capacitor in the related art generates a certain amount of heat when in use. When a plurality of capacitors are arranged for use at the same time, a large amount of heat is accumulated and is difficult to remove, thereby causing the capacitors to be damaged or even exploded due to excessive heat.

[0026] Based on this, to improve the fact that the reactive compensation capacitor in the related art generates a certain amount of heat when in use, and when a plurality of capacitors are arranged for use at the same time, a large amount of heat is accumulated and is difficult to remove, thereby causing the capacitors to be damaged or even exploded due to excessive heat, the embodiments of the present application provide the following solutions.

[0027] Please refer to Figures 1 to 4 A reactive compensation capacitor device includes a device shell 1, a capacitor 12, a heat dissipation mechanism 2, and a wiring assembly 3. The capacitor 12 is used to make the device work normally. The heat dissipation mechanism 2 is used to timely remove the heat generated by the capacitor 12 during work. The wiring assembly 3 is used to wire and power the device.

[0028] Please refer to Figures 1 to 4 The capacitor 12 is fixedly connected with a wire outlet sleeve 5 at the top end. The wiring assembly 3 includes two groups of wiring columns 31 and a wiring block 32. The wiring block 32 is fixedly connected to the top end of the device shell 1. One group of the wiring columns 31 is fixedly connected to one end of the device shell 1 close to the wiring block 32. The other group of the wiring columns 31 is fixedly connected to the other end of the device shell 1 away from the wiring block 32. A plurality of wiring barrels 321 are fixedly connected to the wiring block 32. The bottom surface of the wiring barrel 321 is fixedly connected with the wire outlet sleeve 5. A mounting buckle 322 is fixedly connected to the side surface of the wiring block 32. A plurality of through holes 14 are uniformly arranged on the device shell 1. A hook 13 is fixedly connected to one side surface of the device shell 1.

[0029] Thus, the staff installs and fixes the capacitor device through the mounting buckle 322 and the hook 13, then twists the locking nut in the terminal block 321 to connect the wire, tightens the locking nut after the wire connection is completed, and connects the remaining terminal blocks 321 in sequence. When the wire connection is completed, the other end of the wire is connected to the power supply to be powered on. When the capacitor device is powered on, the reactive compensation capacitor device adjusts the phase difference between the reactive power and the active power to be minimum, then introduces or eliminates the capacitor 12 at the appropriate time according to the demand of the power system, so that the phase of voltage and current is consistent, the power factor is close to 1, and the function of reactive power compensation is achieved.

[0030] The effect of such arrangement is that the terminal block 32 and the terminal post 31 on the device shell 1 can make the device wiring more convenient, the connection between the wire and the device is more stable and not easy to be disconnected by arranging the terminal block 32, the mounting buckle 322 on the side of the terminal block 32 and the hook 13 on the side of the device shell 1, which is convenient for the staff to install and disassemble the capacitor device. The capacitor 12 is evenly installed and placed on the device shell 1, which is convenient for the staff to regularly maintain the capacitor device.

[0031] Please refer to Figures 1 to 4 , the heat dissipation mechanism 2 includes a heat dissipation spacer 21 and a heat insulation block 22, the heat dissipation spacer is fixedly connected between the outer surfaces of the capacitor 12, the heat insulation block 22 is fixedly connected with an isolation strip 221, the heat insulation block 22 is fixedly connected between the outer surfaces of the capacitor 12 through the heat insulation strip, and the side of the heat insulation block 22 is fixedly connected on the heat dissipation spacer 21, the isolation strip 221 forms a gap between the capacitor 12 and the heat insulation block 22, a plurality of first grooves 211 are uniformly arranged on the heat dissipation spacer 21, a first heat dissipation hole 212 in communication with the gap between the capacitor 12 and the heat insulation block 22 is uniformly arranged in the first groove 211, a second heat dissipation hole 213 in communication with the first heat dissipation hole 212 is further arranged on the side of the heat dissipation spacer 21, and a second groove 222 is arranged on the heat insulation block 22. The heat dissipation fan 4 is installed in the second groove 222.

[0032] Thus, when the capacitor device is powered on, a plurality of capacitors 12 generate heat during work, the fan blades of the heat dissipation fan 4 rotate to blow out, the generated wind force carries the heat generated by the capacitor 12 during work to fill the first heat dissipation hole 212 on the heat dissipation spacer 21 through the gap between the capacitor 12 and the heat insulation block 22 formed by the isolation strip 221. Under the constant wind force generated by the heat dissipation fan 4, the previously generated wind force is pushed into the second heat dissipation hole 213 on the heat dissipation spacer 21, then the heat generated by the electric heater is discharged from the capacitor device in time through the through hole 14 on the device shell 1.

[0033] The effect of the arrangement is that the capacitor 12 is horizontally equidistantly isolated in the device shell 1 by the heat dissipation spacer 21, and the heat dissipation spacer 21 is isolated from the capacitor 12 by the first groove 211 formed on the heat dissipation spacer 21, the gap is increased to facilitate the ventilation of the device, the capacitor 12 is further longitudinally equidistantly isolated by the heat insulation block, and the capacitor 12 is secondarily longitudinally isolated by cooperating with the isolation strip 221 on the heat insulation block, the ventilation effect is increased, and the second groove 222 is clamped on the heat insulation block 22, and the heat dissipation fan 4 is installed in the second groove 222, the heat dissipation fan 4 operates, the heat of the first heat dissipation hole 212 is sucked into the second heat dissipation hole 213, and then discharged from the through hole 14 of the device, so that the heat generated in the device can be effectively and timely discharged, the capacitor 12 can work normally for a long time, and the working efficiency is improved.

[0034] From the above, the working principle of the present application is as follows:

[0035] The staff installs and fixes the capacitor device by installing the buckle 322 and the hook 13, then twists the locking nut in the wiring drum 321 to connect the wires, tightens the locking nut after the wire connection is completed, and the remaining wiring drums 321 are connected in sequence, the other end of the wire is connected with the power supply after the wire connection is completed, and the capacitor device is powered on, the reactive power and the active power are adjusted to the minimum, then according to the demand of the power system, the capacitor 12 is introduced or eliminated at the appropriate time, so that the phase of voltage and current is consistent, the power factor is close to 1, and the effect of reactive power compensation is achieved;

[0036] When the capacitor device is powered on and works, the plurality of capacitors 12 generate heat, the fan blades of the heat dissipation fan 4 rotate to blow out, the generated wind force will carry the heat generated by the capacitor 12 during work to fill the first heat dissipation hole 212 on the heat dissipation spacer 21 through the gap between the capacitor 12 and the heat insulation block 22 caused by the isolation strip 221, under the continuous wind force generated by the heat dissipation fan 4, the previous wind force will be pushed into the second heat dissipation hole 213 on the heat dissipation spacer 21, and then the heat generated by the electric heater is discharged from the capacitor device through the through hole 14 on the device shell 1.

[0037] The above only describes the preferred embodiment of the present application, and does not limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A capacitive device for reactive compensation, characterized in that, Including device shell (1), capacitor (12), heat dissipation mechanism (2) and wiring assembly (3), capacitor (12) is arranged in device shell (1), heat dissipation mechanism (2) includes heat dissipation spacer (21) and heat insulation block (22), heat dissipation spacer (21) is fixedly connected between the outer surface of capacitor (12), heat insulation block (22) is fixedly connected with isolation strip (221), heat insulation block (22) is fixedly connected between the outer surface of capacitor (12) by isolation strip (221), and the side of heat insulation block (22) is fixedly connected on heat dissipation spacer (21), isolation strip (221) forms gap between capacitor (12) and heat insulation block (22), wiring assembly (3) is used for device wiring power on, heat dissipation spacer (21) is uniformly provided with a plurality of first grooves (211), the first groove (211) is uniformly provided with first heat dissipation hole (212) in communication with the gap between capacitor (12) and heat insulation block (22), the side of heat dissipation spacer (21) is also provided with second heat dissipation hole (213) in communication with first heat dissipation hole (212), heat insulation block (22) is provided with second groove (222), and heat dissipation fan (4) is installed in second groove (222).

2. A capacitive device for reactive power compensation according to claim 1, characterized in that The top end of the capacitor (12) is fixedly connected with the outlet sleeve (5).

3. A capacitive device for reactive power compensation according to claim 2, characterized in that The wiring assembly (3) includes two groups of wiring posts (31) and wiring blocks (32), the wiring block (32) is fixedly connected to the top end of the device shell (1), one group of wiring posts (31) is fixedly connected to one end of the device shell (1) close to the wiring block (32), and the other group of wiring posts (31) is fixedly connected to the other end of the device shell (1) away from the wiring block (32).

4. A capacitive device for reactive power compensation according to claim 3, characterized in that The wiring block (32) is fixedly connected with a plurality of wiring barrels (321), and the bottom surface of the wiring barrel (321) is fixedly connected with the outlet sleeve (5), and the side of the wiring block (32) is fixedly connected with a mounting buckle (322).

5. A reactive power compensating capacitor device according to claim 4, characterised in that A plurality of through holes (14) are uniformly formed in the device shell (1), and a hook (13) is fixedly connected to one side of the device shell (1).

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