CN218678454U

CN218678454U - Active power filter convenient to ventilation cooling

Info

Publication number: CN218678454U
Application number: CN202221739997.9U
Authority: CN
Inventors: 周南聪; 刘文艳
Original assignee: Shenzhen Yixinda Technology Co ltd
Current assignee: Shenzhen Yixinda Technology Co ltd
Priority date: 2022-07-06
Filing date: 2022-07-06
Publication date: 2023-03-21
Anticipated expiration: 2032-07-06

Abstract

The utility model belongs to the technical field of the wave filter technique and specifically relates to an active power filter convenient to ventilation cooling is related to, including the frame, arrange power supply unit and inductance coils in the frame in, the both sides wall of frame sets up the heating panel into the fretwork, sets up a plurality of align to grid's ventilation hole on the heating panel, is equipped with the backup pad between power supply unit and the inductance coils and separates, and power supply unit and inductance coils are located one side that is close to the heating panel in the frame, and the opposite side relative with power supply unit and inductance coils position is provided with heat abstractor. The utility model discloses an improve electric power filter's radiating efficiency through heat abstractor to through reasonable structural design, make it can improve the radiating homogeneity of wave filter, thereby improve the life of wave filter.

Description

Active power filter convenient to ventilation cooling

Technical Field

The utility model belongs to the technical field of the wave filter technique and specifically relates to an active power filter convenient to ventilation cooling is related to.

Background

An Active Power Filter (APF) is a novel power electronic device for dynamically inhibiting harmonic waves and compensating reactive power, can perform fast tracking compensation on harmonic waves with different sizes and frequencies, is called as an active power, can only passively absorb the harmonic waves with fixed frequency and size relative to a passive LC filter, can control and actively output the size, frequency and phase of current by sampling load current and perform each time of separation of harmonic waves and reactive power, can quickly respond to offset corresponding current in the load, realizes dynamic tracking compensation, and can compensate both the harmonic waves and the reactive power and unbalance.

At present, the active filter is widely used and mainly comprises an outer frame, a power supply device, and electronic components such as a capacitor, an inductor, a breaker and the like. The electronic components kind and the figure in the frame are very much, still need set up the radiator in order to prevent that its inside temperature is too much, and current radiator is simple only sets up radiator fan in the outside, and it is difficult to give off the inside heat of active power filter fast, leads to its radiating effect not good.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical defect who proposes in the above-mentioned background art, the utility model aims at providing an active power filter convenient to ventilation cooling solves the current situation that current active filter design is unreasonable to lead to active filter's heat dispersion poor to improve its heat dispersion.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides an active power filter convenient to ventilation cooling, includes the frame, arranges power supply unit and inductance coils in the frame in, the both sides wall of frame sets up the heating panel into the fretwork, sets up a plurality of align to grid's ventilation hole on the heating panel, is equipped with the backup pad between power supply unit and the inductance coils and separates, and power supply unit and inductance coils are located the frame and are close to one side of heating panel, and the opposite side relative with power supply unit and inductance coils position is provided with heat abstractor.

By adopting the technical scheme, the heat dissipation device can improve the heat dissipation efficiency of the power filter, and through reasonable structural design, the heat dissipation uniformity of the filter can be improved, so that the service life of the filter is prolonged.

Preferably, the heat dissipation device comprises a heat dissipation plate and a heat dissipation fan, the heat dissipation plate is formed by arranging and combining a plurality of heat dissipation fins, and a heat dissipation channel is formed between every two adjacent heat dissipation fins.

By adopting the technical scheme, the heat dissipation performance of the heat dissipation channel is greatly improved, so that the operation stability of the active power filter is improved.

Preferably, the heat dissipation plate is located in the middle of the outer frame and has a gap with the bottom of the outer frame, the heat dissipation plate and the support frame are arranged at the same height, and two ends of the heat dissipation plate are fixedly connected with the outer frame.

Through adopting above-mentioned technical scheme, there is the clearance in the bottom of heat dissipation platoon board and frame and can avoid the heat to in time discharge when piling up in a large number.

Preferably, the heat dissipation fan is provided with a plurality of air outlets which are distributed on the side wall of the outer frame in parallel, and the air outlets of the heat dissipation fan are opposite to the position of the inductance coil.

Through adopting above-mentioned technical scheme, radiator fan just establishes to the inductance coils position, can be fast with inductance coils cooling to accelerate the emission with the heat that it produced.

Preferably, the inductance coils are arranged in a plurality of rows, the inductance coils are arranged at equal intervals, and the inductance coils in the rows are arranged in a staggered manner.

By adopting the technical scheme, the inductance coils of each row are arranged in a staggered manner, so that the heat dissipation channel is formed between the inductance coils, the heat dissipation speed and the heat dissipation effect are improved, and the mutual influence during the heat generation can be reduced.

Preferably, power supply unit passes through welded mode fixed connection on the support frame, has seted up a plurality of louvres on the support frame, and semiconductor refrigeration piece is installed to power supply unit's bottom, and the endothermic one side of semiconductor refrigeration piece bonds with power supply unit, and refrigerated one side is towards inductance coils.

Through adopting above-mentioned technical scheme, the semiconductor refrigeration piece can absorb the heat that power supply unit produced fast to through cryogenic one side for power supply unit and induction coil rapid cooling.

To sum up, the beneficial effects of the utility model are that:

1. the utility model discloses an improve electric power filter's radiating efficiency through heat abstractor to through reasonable structural design, make it can improve the radiating homogeneity of wave filter, thereby improve the life of wave filter.

2. The utility model discloses the ventilation hole has all been seted up in the both sides of frame to set up the heat dissipation row board in the centre, set up radiator fan for power supply unit's opposite side, formed the heat dissipation wind channel between the three, made its heat dispersion increase substantially, thereby improved the stability of active power filter operation.

Drawings

Fig. 1 is a schematic structural diagram of the active power filter of the present invention;

fig. 2 is a schematic structural diagram of the internal frame of the active power filter of the present invention;

fig. 3 is a schematic cross-sectional structural diagram of the active power filter of the present invention;

fig. 4 is another schematic cross-sectional view of the active power filter according to the present invention.

Description of reference numerals:

1. an outer frame; 2. a power supply device; 3. an inductance coil; 4. a heat dissipation plate; 5. a vent hole; 6. a support plate; 7. a heat sink; 71. a heat dissipation plate; 711. a heat sink; 712. a heat dissipation channel; 72. a heat radiation fan; 8. and (4) heat dissipation holes.

Detailed Description

In order that the present invention may be more readily and clearly understood, the following description of the present invention is provided in connection with the accompanying drawings.

It should be noted that the terms "center," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like as used herein are used in the orientation or positional relationship indicated in the drawings for the convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and therefore should not be construed as limiting the present invention. "plurality" means two or more unless otherwise specified.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Example 1

An active power filter convenient for ventilation and heat dissipation is disclosed, as shown in fig. 1 to 4, and comprises an outer frame 1, a power supply device 2 and an inductance coil 3, wherein the power supply device 2 and the inductance coil 3 are arranged in the outer frame 1, two side walls of the outer frame 1 are provided with hollow heat dissipation plates 4, a plurality of uniformly arranged ventilation holes 5 are formed in the heat dissipation plates 4, a support plate 6 is arranged between the power supply device 2 and the inductance coil 3 for spacing, the power supply device 2 and the inductance coil 3 are positioned at one side close to the heat dissipation plates 4 in the outer frame 1, and a heat dissipation device 7 is arranged at the other side opposite to the positions of the power supply device 2 and the inductance coil 3; power supply unit 2 has seted up a plurality of louvres 8 on the support frame through welded mode fixed connection on the support frame, and the semiconductor refrigeration piece is installed to power supply unit 2's bottom, and the endothermic one side of semiconductor refrigeration piece bonds with power supply unit 2, and refrigerated one side is towards inductance coils 3.

Specifically, the outer frame 1 of the active power filter is made of metal plates, two sides of the outer frame are formed by heat dissipation splicing, the heat dissipation plate 4 is of a hollow structure and is provided with a plurality of ventilation holes 5, so that heat can be dissipated greatly, a power supply device 2 and an inductance coil 3 are installed in an inner cavity close to the left side of the outer frame 1, a support frame interval is arranged between the power supply device 2 and the inductance coil 3, the power supply device 2 is positioned above the inductance coil 3 and is fixedly connected to the support frame in a welding or screw mode, a semiconductor refrigeration sheet is bonded between the power supply device 2 and the support frame, a piece of N-type semiconductor material and a piece of P-type semiconductor material are connected to form galvanic couple time pair, energy transfer can be generated after direct current is switched on in the circuit, and the current flows to a joint of the P-type element from the N-type element to absorb heat to form a cold end; the junction from the P-type element to the N-type element releases heat to become the hot end. The inside of the refrigerating piece is a thermopile formed by coupling hundreds of pairs of electric couples so as to achieve the effect of enhancing refrigeration or heating, in order to achieve better heat dissipation effect, a direct current power supply is adopted for the input and the output of the power supply device 2, when direct current enters the semiconductor refrigerating piece, the current flows to the joint of the P-type element from the N-type element to absorb heat to form a heat absorption surface, and the joint of the N-type element from the P-type element to release heat to form a heat release surface.

In this embodiment, the heat dissipation device 7 includes a heat dissipation plate 71 and a heat dissipation fan 72, the heat dissipation plate 71 is formed by arranging and combining a plurality of heat dissipation fins 711, and a heat dissipation channel 712 is formed between adjacent heat dissipation fins 711; the heat dissipation plate 71 is positioned in the middle of the outer frame 1 and has a certain gap with the bottom of the outer frame 1, the heat dissipation plate 71 is arranged at the same height with the support frame, and two ends of the heat dissipation plate 71 are fixedly connected with the outer frame 1; the heat radiation fans 72 are provided with a plurality of air outlets and are distributed on the side wall of the outer frame 1 in parallel, and the air outlets of the heat radiation fans 72 are arranged opposite to the position of the induction coil 3; inductance coils 3 are provided with a plurality of, and each inductance coils 3 equidistance sets up and is equipped with the multirow, and the inductance coils 3 crisscross setting each other of each row makes and forms heat dissipation channel between each inductance coils 3, and the branch of academic or vocational study improves radiating rate and effect to influence each other when can reducing its heat production.

Specifically, heat dissipation platband 71 is formed by a plurality of fin 711 permutation and combination, fin 711 can play and increase the area that gives off, and clearance between the adjacent fin 711 forms heat dissipation channel 712, make the wind that radiator fan 72 blew off pass through heat dissipation channel 712 direct action on heating element, and can be in the dustproof filter mantle of radiator fan 72 outside fixedly connected with and radiator fan 72 looks adaptation, can avoid external dust to get into the protecting crust effectively through setting up dustproof filter mantle, thereby avoided radiator fan 72 to accumulate a large amount of dust because long-term work, lead to radiating effect to reduce and active power filter internal circuit board deposition to lead to damaging, guaranteed the normal operating of good radiating effect and equipment, the utility model discloses simple structure not only can play diversified effectual heat dissipation to active power filter, thereby improve radiating effect, guaranteed the normal operating of equipment, thereby improved the stability of active power filter operation.

The utility model discloses a theory of operation:

when the active power filter works, the heat dissipation fan 72 disposed in the outer frame 1 starts to rotate, the heat dissipation fan 72 blows external cold air into the heat generating element through the heat dissipation channel 712 on the heat dissipation plate 71, and the semiconductor cooling plate mounted on the bottom of the power supply device 2 starts to work, the heat absorbing surface of the semiconductor cooling plate connected to the heat generating element absorbs heat and then emits heat through the heat emitting surface, the support frame connected to the heat emitting surface transmits the heat through the heat dissipation plate 4, and the heat is discharged through the heat dissipation fan 72.

The embodiments of the present invention are preferred embodiments of the present application, and the protection scope of the present application is not limited thereby, wherein like parts are denoted by like reference numerals. Therefore, the method comprises the following steps: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an active power filter convenient to ventilation cooling, includes frame (1), places power supply unit (2) and inductance coils (3) in frame (1) in, its characterized in that: the utility model discloses a heating panel, including frame (1), frame (2), power supply unit (3), power supply unit (2) and inductance coils (3), the both sides wall of frame (1) sets up heating panel (4) into the fretwork, sets up a plurality of align to grid's ventilation hole (5) on heating panel (4), is equipped with backup pad (6) between power supply unit (2) and inductance coils (3) and separates, and power supply unit (2) and inductance coils (3) are located one side that is close to heating panel (4) in frame (1), and the opposite side relative with power supply unit (2) and inductance coils (3) position is provided with heat abstractor (7).

2. An active power filter for facilitating ventilation and heat dissipation as defined by claim 1, wherein: the heat dissipation device (7) comprises a heat dissipation row plate (71) and a heat dissipation fan (72), wherein the heat dissipation row plate (71) is formed by arranging and combining a plurality of heat dissipation fins (711), and a heat dissipation channel (712) is formed between every two adjacent heat dissipation fins (711).

3. An active power filter for facilitating ventilation and heat dissipation as defined by claim 2, wherein: the heat dissipation row plate (71) is located in the middle of the outer frame (1) and has a gap with the bottom of the outer frame (1), the heat dissipation row plate (71) and the support frame are arranged at the same height, and two ends of the heat dissipation row plate (71) are fixedly connected with the outer frame (1).

4. An active power filter for facilitating ventilation and heat dissipation as defined by claim 3, wherein: the heat dissipation fan (72) is provided with a plurality of heat dissipation fans which are distributed on the side wall of the outer frame (1) in parallel, and the air outlet of each heat dissipation fan (72) is opposite to the position of the inductance coil (3).

5. An active power filter for facilitating ventilation and heat dissipation as defined by claim 4, wherein: the induction coil (3) is provided with a plurality of induction coils, the induction coils (3) are arranged at equal intervals and are provided with a plurality of rows, and the induction coils (3) of each row are arranged in a staggered mode.

6. An active power filter for facilitating ventilation and heat dissipation as defined by claim 1, wherein: power supply unit (2) have seted up a plurality of louvres (8) through welded mode fixed connection on the support frame, and the semiconductor refrigeration piece is installed to the bottom of power supply unit (2), and the endothermic one side of semiconductor refrigeration piece bonds with power supply unit (2), and refrigerated one side is towards inductance coils (3).