CN201821104U

CN201821104U - Structure of active power filter device

Info

Publication number: CN201821104U
Application number: CN2010205641235U
Authority: CN
Inventors: 刘崇方
Original assignee: GUANGDONG BIDA ELECTRICAL APPLIANCE CO Ltd
Current assignee: GUANGDONG BIDA ELECTRICAL APPLIANCE CO Ltd
Priority date: 2010-10-18
Filing date: 2010-10-18
Publication date: 2011-05-04
Anticipated expiration: 2020-10-18

Abstract

The utility model discloses a structure of an active power filter device, which comprises a machine body device. The structure of the active power filter device is characterized in that a plurality of partition plates are arranged inside the machine body device to divide predetermined chambers inside the machine body device; the chambers include a power module chamber, an electric reactor chamber, a control module chamber and an other element chamber, which are arranged in sequence inside the machine body device; the control module chamber and the other element chamber are positioned at the front part of the machine body device; and the power module chamber and the electric reactor chamber are positioned at the rear part of the machine body device. The partition plates are adopted to prevent the electromagnetic interference among the electrical elements; and by use of a gas passage inside the machine body device, the working units are blown by a centrifugal blower, so as to exhaust the hot gas through an exhaust opening arranged at the top of the power module chamber, which ensures the ideal heat dissipation effect of the heating elements inside the machine body device.

Description

The active electric filter device structure

Technical field

The utility model relates to a kind of structural design of power electronic equipment, is a kind of internal structure design of active electric filter device specifically.

Background technology

Active filter on the market, be meant the harmonic wave in a kind of dynamic filtering electrical network, the effective power electronic equipment of harmonic carcellation, as a rule, be divided into control unit and working cell two parts in the active filter, and in the compact space that is laid in sealing, need carry out the air blast cooling operation of air blast or exhausting to described control unit and working cell, make it cooling.

But for the positional structure in this class active filter, be random control unit and working cell amalgamation are in the same place, and miscellaneous part is not carried out careful heat radiation and arrange, take this to derive two problems: the one,, the working cell can produce electromagnetism when running, phenomenon out of control appears in the normal operation of meeting serious disturbance control unit; The 2nd, the air flows disorder in the device can not make the hot gas in the device flow out smoothly outside the body by desirable exhaust passage, is difficult to realize better heat radiating effect, and this shortens the useful life of machine beyond doubt.

Summary of the invention

Main purpose of the present utility model is to overcome the deficiencies in the prior art, and a kind of reasonable volume position module component is provided, and reduces the electromagnetic interference in the machine element, optimizes cooling air channel, the structural design of maximum implement device function.

The utility model is achieved in that and utilizes dividing plate with two parts before and after being separated in the body set, control unit and working cell are independently placed separately the front and rear of body set, that is to say, in body set, divide and be set as two independently compartments, reduced the electromagnetic interference of working cell effectively by described dividing plate to control unit, simultaneously, also reduce the modular structure of control circuit board and other elements of control unit, therefore after the encapsulation to control unit, be installed to again in the body set, can reduce the electromagnetic interference of important control unit.

That is to say: be provided with the dividing plate of plural number in the described body set and make body set at interval be scheduled between the chamber, described chamber is respectively a power model chamber, a reactor chamber, a control module chamber and other element chamber, and is arranged in the front and rear position successively in body set.

In addition, dividing plate will install main temperature rise zone simultaneously and separate with heating region not, and central main heating region derives from the working cell, therefore, only need the working cell air blast cooling, promptly only the heating region heat radiation of installing the rear portion is got final product, and, be provided with an inlet plenum in the bottom of described body set, be used to extradite entering of air-flow.

Wherein, described power model is to be the IGBT power model.

Wherein, weight places the below than big and the less relatively reactor of caloric value, and the power model that caloric value is bigger places the top, and the air blast cooling generating means is between reactor and power model.

The design in air channel in the body set, make air enter from the air inlet of bottom of device, the air-flow that centrifugal blower produces can be discharged from the steam vent at body set top through behind the power model, in the process, can guarantee the entanglement flow direction that air-flow liquidates not to take place in device.

Therefore, the beneficial effects of the utility model are to utilize dividing plate, control unit and working cell are distinguished, avoid the electromagnetic interference of working cell to control unit, simultaneously, utilize the gas channel in the body set, see through centrifugal blower and hot gas is discharged from the steam vent on top, power model chamber, thereby the heater element in the body is made desirable radiating effect the blowing of working cell.

Description of drawings

Fig. 1 is the structural representation of the utility model most preferred embodiment.

Fig. 2 is the cutaway view of A-A among Fig. 1.

Embodiment

See also Fig. 1, shown in Figure 2, be provided with the dividing plate in precalculated position in the body set 1, described dividing plate is included as one first dividing plate 2, plate 4 in one second partition 3 and, by plate 4 in described, first dividing plate 2 and second partition 3, space branch in the body set 1 is configured to a power model chamber 11, one reactor chamber 12, four chamber bodies of one control module chamber 13 and other element chamber 14, wherein, described control module chamber and other element chamber form the chamber body of placing the control unit parts, be positioned at the place ahead of body set 1, and the chamber body of placing the working cell parts is formed in power model chamber 11 and reactor chamber 12, be positioned at the rear of body set 1, in described the vertical property of plate 4 sides divide at interval described four chamber bodies equally, thereby, when open at the device Qianmen, also can only see the control section element, control so that operating personnel are positioned at the place ahead of body set 1.

Further, described working cell parts include a power model 111, be to be positioned at described power model chamber 11, described power model preferably be embodied as the IGBT power model, it forms working cell a in conjunction with the reactor in the reactor chamber 12 (shown in not having among the figure); Other elements composition control units b that described control unit parts include a control module 131 and are positioned at other element chamber 14, see through the control of described control unit b to working cell a, and make the running of entire machine happy, and, the more effective electromagnetic interference phenomenon of avoiding each device of described four Room distribution.

It should be noted that, to forming corresponding gas channel in the body set 1, so that to the ventilation and heat in the body, particularly mainly be to the heat radiation of working cell a and establish, described gas channel comprises and is provided with an inlet plenum 16 from the bottom of body set 1, and be provided with an air inlet 15 in this inlet plenum 16, for making entering easily of air-flow, then respectively be provided with an air inlet 15 on the both sides of this inlet plenum 16, be equipped with a dustproof filter 151 simultaneously, influence the running of machine to prevent dust and other tiny animals from entering in the body; In the time of in air-flow enters body set 1, promptly can flow in the reactor chamber 12 that is provided with reactor chamber air admission hole 121 successively, and the air-flow order mainly is centrifugal blower 112 effects in the reactor chamber 12, when the rotation of centrifugal blower 112 and have the suction airstream function, described centrifugal blower 112 is belows of being fixed in first dividing plate 2, by the blower fan exhaust vent 113 that on first dividing plate 2, is provided with, so that the air-flow that centrifugal blower 112 is blown out, blow to the indoor power model of power model by blower fan exhaust vent 113, thereby take away the heat of power model, and be provided with steam vent 114 in the top of power model chamber 11, heat supply gas is discharged outside the body set, avoids hot gas to accumulate in the body.

That is to say, 112 pairs of power models of centrifugal blower 111 carry out air blast, on the fin of power model 111, form enough wind speed, the most of heat that produces when utilizing thermal convection with power model 111 work is taken out of, steam vent 114 heat extractions by the top, the air of heat is taken in assurance out of can only be outside the discharger of air channel, and can not scatter in device inside, also, because isolation is finished with reactor chamber 12 usefulness dividing plates in power model chamber 11, the air inlet of centrifugal blower 112 and air outlet are positioned at the both sides of dividing plate, make air-flow do unidirectional flowing.

Claims

1. active electric filter device structure, it comprises a body set (1), it is characterized in that being provided with in the described body set (1) dividing plate of plural number and make body set (1) at interval be scheduled between the chamber, described chamber is respectively a power model chamber (11), a reactor chamber (12), a control module chamber (13) and other element chamber (14), and is arranged in the front and rear position successively in body set (1).

2. active electric filter device structure according to claim 1, it is characterized in that: described dividing plate further includes plate (4) in one first dividing plate (2), the second partition (3) and, nationality is positioned at the medium position of body set (1) by plate (4) in described, by described first dividing plate (2) and second partition (3) and a power-take-off module chamber (11), reactor chamber (12), control module chamber (13) and other element chamber (14).

3. active electric filter device structure according to claim 1, it is characterized in that: the bottom of described body set (1) is provided with an inlet plenum (16), and be provided with an air inlet (15) in this inlet plenum (16), for making entering easily of air-flow, then respectively be provided with an air inlet (15), be equipped with a dustproof filter (151) simultaneously on the both sides of this inlet plenum (16).

4. active electric filter device structure according to claim 2 is characterized in that: more be provided with a reactor chamber air admission hole (121) in the described reactor chamber (12).

5. active electric filter device structure according to claim 2 is characterized in that: described first dividing plate (2) is provided with blower fan exhaust vent (113), and more is provided with a centrifugal blower (112) in the below of first dividing plate (2).

6. active electric filter device structure according to claim 2 is characterized in that: the top of described power model chamber (11) is provided with steam vent (114).