CN101025170A

CN101025170A - Blower unit

Info

Publication number: CN101025170A
Application number: CNA2006101101240A
Authority: CN
Inventors: 小林茂己; 橘功; 高桥努; 西尾利一
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2006-02-17
Filing date: 2006-07-31
Publication date: 2007-08-29
Anticipated expiration: 2026-07-31
Also published as: CN100462569C; JP2007218185A; TWI313732B; HK1105539A1; KR20070082839A; KR100771774B1; JP4679387B2; TW200732566A

Abstract

The invention relates to a blowing device which has a filter or shield at the suction inlet. The dust is not easy to adhere to the filter or shield. The blowing device comprises: main body box which has a suction inlet at the back side and has a blowout at the front side, a motor beared in the main body box front-to-back reelingly, an axial fan fixed on the rotary axis of the motor, relay switch and time switch for switching the motor rotation direction, filter or shield set at the suction inlet, a disc set in the center of the filter or shield corresponding to the center of the axial fan, in which, the disc is installed in rows spaced relative to the face of the filter or shield.

Description

Blower device

Technical field

The present invention relates to have dust in the blower of filter or protective housing and be not easy to be attached to blower device on filter or the protective housing etc. at the suction port place.

Background technique

For example, under the situation of the blower that carries out indoor air blast, be suspended in dust in the indoor air when the filter at the suction port place by being installed on blower or protective housing, can adhere to and be trapped on filter or the protective housing.Particularly, under the high situation of indoor concentration of dust, filter or protective housing usually can produce eyelet at short notice and stop up.Owing under the state that eyelet stops up, use blower device, exist the problem of the blowability that can not give full play to regulation and the problems such as dust whereabouts of being detained.In addition, suction port at blower causes owing to dust under the situation of eyelet obstruction, in order to give full play to the blowability of regulation, be necessary to keep in repair, still, be arranged on than local time higher at blower device, when the operation that the eyelet of removing filter or protective housing stops up, be necessary to assemble scaffold, thus very onerous toil become, and become the operation that is accompanied by danger.Therefore, need a large amount of maintenance expensess.

In order to address these problems, in patent documentation 1, put down in writing as the blower device that in existing blower, carries out the cleaning of suction port.This blower device is fixed on the exterior wall of building and uses, and comprising: the shell that has opening portion respectively in the outside, room and the inboard, room of aforementioned building; Be installed in air-breathing, the ventilation fan that exhaust is dual-purpose at end place of the inboard, room of aforementioned shell; Be arranged on air-breathing, the context filter that exhaust is dual-purpose in the place ahead in the room outside of aforementioned ventilation fan; Surround the two sides side of aforementioned context filter and divide the regeneration space of formation with gate; The regeneration sector of being regenerated in the two sides of the aforementioned context filter in the aforementioned regeneration space; Control the control gear of aforementioned regeneration sector.

In addition, in patent documentation 2, put down in writing as the blower device that in existing blower, carries out the cleaning of suction port.This blower device is characterised in that it comprises: extraneous gas is imported to indoor ventilating path; To being included in the dust-collecting filter that carries out control of dust by the dust in the extraneous gas of aforementioned ventilating path guiding; And dust-collecting filter cleaning agency and the blower that will be removed by the dust of control of dust, aforementioned blower carries out air feed to the indoor side usually, the dust after the dust-collecting filter cleaning is finished discharge during, carry out exhaust to the outdoor.

In addition, in patent documentation 3, put down in writing the suction port cleaning is carried out in other conduct in existing blower blower device.This blower device is characterized in that, it is provided with: side has suction port and has the main body casing of blow-off outlet in face side overleaf; Be arranged on the motor that can just change and reverse of this main body box house; Be installed in the axial fan on the running shaft of this motor; Switching mechanism; Described switching mechanism central part front in axial fan on filter that is installed to aforementioned suction port place or protective housing is equipped with disk, and then in the control circuit of aforementioned motor the sense of rotation of this motor is switched to opposite direction; Set the time switch of the actuation time of this switching mechanism, described blower device will blow off attached to the dust on aforementioned filter or the protective housing with the scheduled time running of reversing at interval, cleans.

[patent documentation 1] spy open the 2004-301423 communique (claim 1, Fig. 1)

[patent documentation 2] spy open the 2005-241093 communique (claim 1, Fig. 1)

[patent documentation 3] spy open the 2005-299493 communique (claim 1, Fig. 1)

But, have following problem in the prior art.

In patent documentation 1 described automatic regeneration type air interchanger, be equipped with and cleaning be set with regeneration sectors such as equipment so that the two sides side of context filter is regenerated, and the control gear of controlling aforementioned regeneration sector, in this automatic regeneration type air interchanger, clean by pollution situation according to context filter, the eyelet of eliminating context filter stops up, can alleviate maintenance operation, but, must be independent of air interchanger the water spray usefulness that filter rinsed is used is set separately, draining pipe arrangement mouth, clean and use water supply equipment, exist the problem that increases cost.

In addition, in patent documentation 2 described ventilation blower devices, the dust-collecting filter cleaning agency that be equipped with dust-collecting filter, will be constituted by brush, brush whirligig and the utilization brush whirligig mobile mechanism that the dust of control of dust is removed, usually carry out air feed to the indoor side, during the dust-collecting filter cleaning, carry out exhaust in order to discharge dust to outdoor, in this ventilation blower device, must be independent of air regenerating device the dust-collecting filter cleaning agency is set individually, exist the problem that increases cost.And then, owing to be movable mechanism, so exist the problem that the dust-collecting filter cleaning agency itself must keep in repair.

In addition, in patent documentation 3 described blower devices, the positive disk of installing of central part at the axial fan of the filter of the suction side that is installed in blower or protective housing, carry out the cleaning of suction port by making the axial fan counterrotating, in this blower device, for filter or protective housing wiper mechanism and movable cleaning agency needn't be set, but, the part that the part that contacts with disk at protective housing, the dusts such as end face of disk can tangle or snarl, the very fast growth of dust, thus there is the problem of the maintenance of the dust need remove blower.On the other hand, when adding big disk, exist the problem of the blowability reduction of blower in order to remove dust.

Summary of the invention

The present invention proposes in order to address the above problem, and its objective is to obtain a kind ofly in the suction port place has the blower of filter or protective housing dust to be not easy attached to the blower device on filter or the protective housing etc.

In order to solve foregoing problems,, it is characterized in that it comprises according to blower device of the present invention: the side main body casing that has suction port and have blow-off outlet in face side overleaf; Can positive and negative rotation twelve Earthly Branches hold the motor in this main body casing; Be installed in the axial fan on the running shaft of this motor; Switch switching mechanism and time switch that the sense of rotation of aforementioned motor is used; Be arranged on the filter or the protective housing at aforementioned suction port place; Be configured in the disk of the central part of aforementioned filter corresponding or protective housing, wherein, described disk be installed with separating certain clearance with the surface of aforementioned filter or protective housing with the central part of aforementioned axis flow fan.

According to the present invention, for attached to the dust on filter that is installed on the suction port place or the protective housing, before it is fixed up, by make the axial fan counterrotating by certain time interval, described dust is blown away, thereby clean, can eliminate the main cause that the suction port eyelet stops up.

And, owing to be provided with the gap between the surface of disk and filter or protective housing, that is, and the state installation of disk to float, so, the air blast when reversing by motor, the dust of the part that can be easily the dusts such as end of disk is tangled or snarl is removed.

In addition, even be provided with under the pinnacled situation, also can easily and automatically carry out the cleaning of filter or protective housing at blower device.

And then, because filter or protective housing eyelet are stopped up, can carry out air blast well, so, can reduce regular maintenance frequency, have the effect that can reduce maintenance expenses.

Description of drawings

Fig. 1 is the sectional view of the internal structure of the blower device in the expression form of implementation 1.

Fig. 2 is the front view of the protective housing in the form of implementation 1.

Fig. 3 is the plan view of Fig. 2.

Fig. 4 is the circuit diagram of the blower device in the form of implementation 1.

Fig. 5 is the front view with blower device of a blower.

Fig. 6 is the plan view of Fig. 5.

Fig. 7 is the rear view of Fig. 5.

Fig. 8 is the front view with blower device of 3 blowers.

Fig. 9 is the plan view of Fig. 8.

Figure 10 is the rear view of Fig. 8.

Figure 11 is the sectional view that is illustrated in the internal structure of the blower device in the form of implementation 2.

Figure 12 is the sectional view that is illustrated in the internal structure of the blower device in the form of implementation 3.

Figure 13 is the front view under the situation of the ventilation fan in form of implementation 4.

Figure 14 is the plan view of Figure 13.

Figure 15 is the rear view of the blower device in form of implementation 5.

Figure 16 is the plan view of the blower device in form of implementation 5.

Description of reference numerals:

11 main body casings, 12 suction ports, 13 blow-off outlets, 14 axial fans, 15 motors, 16 openings, 17 air conducting members, 18 filters or protective housing, 19,19A, 19B disk, 20 are installed leg, 21 relay switches, 21a, 21b contact, 21c coil, 22 time switches, 22a contact, 25 filter installing frames, 26 filters

Embodiment

Below, with reference to description of drawings form of implementation of the present invention.

Form of implementation 1.

Fig. 1 is the sectional view of the internal structure of the blower device in the expression form of implementation 1 of the present invention.In addition, Fig. 2 is that Fig. 3 is the plan view of this protective housing from the front view that for example has the protective housing part under the situation of 3 blowers at this blower device that sucks that oral-lateral observes.Fig. 4 is the circuit diagram of blower device.

This blower device is used for the cooling of indoor air blast or equipment, with furred ceiling or land or the state that is installed on the wall is installed.Blower device has the main body casing 11 of six casing shapes, and on main body casing 11, side is provided with suction port 12 overleaf, and side is provided with blow-off outlet 13 in front.In addition, platform number according to blower, the inside of main body casing 11 is separated, for a blower, the motor 15 that is equipped with the axial fan 14 that is arranged on opening 16 inside and the axial fan 14 that is installed on the running shaft is rotated and reverse, and then, be equipped with the shared air conducting member 17 of blow-off outlet 13 usefulness that form front face side.And, at above-mentioned suction port 12 places, filter or protective housing 18 are set, so that dust or foreign matter can not enter the inside of main body casing 11.In addition, being provided with under the situation of filter with replacement protective housing 18, also has identical structure.In addition, Fig. 5 to Fig. 7 represents that blower is 1 a example, and Fig. 8 to Figure 10 is that the expression blower is 3 a example.

And as shown in Figure 1 to Figure 3, disk 19 is installed to corresponding to the filter of the central part of axial fan 14 or the central part of protective housing 18 by leg 20 is installed.That is, disk 19 is installed by being provided with the gap between the face that leg 20 and filter or protective housing 18 are installed (floating).

In addition, for the sense of rotation of the motor 15 that switches this blower device, as shown in Figure 4, for example, switching mechanism that is made of relay switch 21 and the actuation time of setting this switching mechanism time switch 22 at interval are set in motor drive circuit.Time switch 22 is to be provided with for the running of switching blower device termly (sense of rotation).For example, in Fig. 4, because contact 21a, the 21b of relay switch 21 switch to the position of representing with

solid line

1,2, so 3 cross streams motors 15 rotate to positive veer.Thereby, blower device carry out from the suction port 12 at the back side suck air, from the common air blast running of blow-off outlet 13 blow out air in front.Then, when arriving the moment of being set by time switch 22, the contact 22a in the time switch 22 is closed and connect, by this, and to the coil 21c of relay switch 21 energising, so contact 21a, 21b are switched to the position 3,4 that dots.By this, because V exchanges mutually with W mutually, so motor 15 switches to inverted status from commentaries on classics state just, carry out air blast from suction port 12 to the direction of going out conversely, can before it is fixing, remove being trapped in the filter or the dust on the protective housing 18 that are installed on suction port 12 places.In this case, at the last residual dust that whether blows off of the maincenter part (hub portion) of the axial fan 14 that flows that does not have wind, so in order to prevent to adhere to dust on this part, it is effective that disk 19 is set.

And, in this form of implementation, because disk 19 does not contact with the face of filter or protective housing 18 with and this face between be provided with the gap float state be installed in corresponding to the filter of the central part of axial fan 14 or the central part of protective housing 18, so, when motor 15 counter-rotatings, the part of the wind that blows out from suction port 12 is run into disk 19, surface current along filter on every side or protective housing 18 is moving, thereby, can easily near the dust the end of disk 19 be removed, simultaneously, the dust that is attached on the outer surface of filter or protective housing 18 can be blown off.Thereby, the diameter of disk 19 can be set with the limit of minimum, can not reduce the blowability of blower, can remove attached to the dust on filter or the protective housing 18, and make it to be not easy to adhere to dust.Therefore, can alleviate the cleaning maintenance of filter or protective housing 18.

Form of implementation 2.

Figure 11 is the sectional view of the internal structure of the blower device in the expression form of implementation 2 of the present invention.In this form of implementation, on the basis of above-mentioned form of implementation 1, has fillet 19a at the peripheral end of disk 19A.Other structure is identical with form of implementation 1, so, give identical reference character, omit its explanation.

Disk 19A for example can be by the sheet metal processing of metal and the manufacturings such as shaping processing of resin.At this moment, the acquisition angles such as peripheral end crimping by with disk 19A make it to have fillet 19a.By this, dust etc. can less hang on the peripheral end of disk 19A.

Thereby, in this form of implementation, except the effect shown in the form of implementation, also have the effect that reduces on the peripheral end that dust etc. hangs over disk 19A.

Form of implementation 3.

Figure 12 is the sectional view of the internal structure of the blower device in the expression form of implementation 3 of the present invention.In this form of implementation, on the basis of above-mentioned form of implementation 1,, the shape of disk 19B is formed fairshaped shape for any one air-flow in just changeing, reversing.Other structure is identical with form of implementation 1, thereby gives identical reference character, omits its explanation.

In this form of implementation, also same with form of implementation 2, have the effect that can reduce on the peripheral end that dust etc. hangs over disk 19B.

Form of implementation 4.

In above-mentioned form of implementation 1, filter or protective housing 18 are made of independent parts with disk 19, but, in this form of implementation, as Fig. 2, shown in Figure 3,, form leg 20 is installed the part bending of protective housing 18, disk 19 is welded on the part of this installation leg 20, disk 19 and protective housing 18 are constituted integrally.Perhaps, also can be shown in the embodiment in the protection grid of the ventilation fan of Figure 13, utilize plastics etc. that protective housing 18 and disk 19 unitary mouldings are constituted.In addition, under the situation of filter, also can be with filter and disk 19 unitary mouldings.

According to this form of implementation, can easily assemble blower, can obtain the mechanism that prevents that dust from adhering to more at an easy rate.

Form of implementation 5.

Figure 15 is the rear view of the blower device with 3 blowers in form of implementation 5 of the present invention, particularly, has and can change structure of filter.Figure 16 is the plan view with blower device of 1 blower.

In this form of implementation, on the basis of above-mentioned form of

implementation

1,2,3, shown in Figure 15,16, at suction port 12 places of blower device the filter installing frame 25 that is provided with disk 19 is installed, filter 26 can freely plug with respect to this filter installing frame 25.

Like this, utilize independently parts formation filter 26 and the filter installing frame 25 that has disk 19, the structure of filter 26 can be only changed in formation.

According to this form of implementation, can not reduce the blowability of blower, can suppress attached to the dust amount on the filter 26, can reduce the number of times of changing filter, and then, when filter is changed, can easily change operation.

Claims

1. blower device, it comprises: the side main body casing that has suction port and have blow-off outlet in face side overleaf; Can positive and negative rotation twelve Earthly Branches hold the motor in this main body casing; Be installed in the axial fan on the running shaft of this motor; Switch switching mechanism and time switch that the sense of rotation of aforementioned motor is used; Be arranged on the filter or the protective housing at aforementioned suction port place; Be configured in the disk of the central part of aforementioned filter corresponding or protective housing, wherein, separate with the surface of aforementioned filter or protective housing described disk is installed with gap with the central part of aforementioned axis flow fan.

2. blower device as claimed in claim 1 is characterized in that the peripheral end of aforementioned disk has fillet.

3. as claim 1 or the described blower device of claim 2, it is characterized in that the profile of aforementioned disk forms streamlined.

4. as any one described blower device in the claim 1 to 3, it is characterized in that aforementioned disk and aforementioned filter or protective housing constitute overall structure.

5. as any one described blower device in the claim 1 to 3, it is characterized in that aforementioned disk and aforementioned protective housing constitute integrally-built filter installing frame, filter is inserted, remains in this filter installing frame.