CN201110278Y

CN201110278Y - Moistureproof structure of centrifugal blower

Info

Publication number: CN201110278Y
Application number: CNU2007200644447U
Authority: CN
Inventors: 张芳溥
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-09-14
Filing date: 2007-09-14
Publication date: 2008-09-03
Anticipated expiration: 2017-09-14

Abstract

A damp-proofing structure of centrifugal blowers comprises a shell seat, a motor and a fan blade, wherein capacity space is arranged in the shell seat, an air inlet and a wall body are respectively arranged on both sides of the capacity space, a plurality of through holes are arranged on the wall body, an actuating shaft of the motor is connected with the fan blade and is post-positioned in the capacity space of the shell seat, when the motor activates the fan blade to carry out rotational displacement movement, the a plurality of through holes which are arranged on the wall body are utilized to balance the negative pressure condition which is generated from the central position of the fan blade, which can directly discharge the damp air and water which are stored in the negative pressure area of the blower, and realize the structure that the inner of the blower is dry, electric leakage is reduced and the service life of the blower is prolonged.

Description

The centrifugal blower moisture-proof construction

Technical field:

The utility model relates to a kind of centrifugal blower moisture-proof construction, refers to that especially a kind of blower inside that makes keeps dry, and takes place and reduce the electric leakage situation, and prolongs the structure of blower life time.

Background technique:

Common blower, structure cut-away view as shown in Figure 1, by a shell block 100, a motor 200, a fan blade 300, and a wind scooper 400 formed; Wherein be provided with a containing space 101 in this shell block 100, this containing space 101 tops one side is provided with an exhaust outlet 102, and the containing space bottom is provided with the wind inlet 103 of hollow out; One motor 200 has a upwardly extending live axle 201; One fan blade 300 can be combined on the live axle 201 of motor 200; One wind scooper 400 is arranged on shell block 100 containing spaces 101 tops, and wind scooper 400 1 sides are provided with an exhaust outlet 401 in addition, the side and with a wall body 402 with its sealing.

When combination, this fan blade 300 is set on the live axle 201 of motor 200, and after it is put containing space 101 in shell block 100, and wind scooper 400 covers above shell block 100 containing spaces 101, and combine with shell block 100.

When using, fan motor 300 is driven by motor 200 and air is sucked by wind inlet 103, and is discharged by exhaust outlet 102,401, and reaches the effect of air blast.

Yet aforesaid blower fan structure has following shortcoming in use unavoidably:

Because fan blade 300 in the running, the middle position of contiguous wall body 402 produces a negative pressuren zone A (as shown in phantom in FIG.) in fan blade 300 axle center, accumulate on the aforementioned negative pressuren zone A and often condense into aqueous vapor by humid air, water droplet that blower sucks, and be close to the suction function of vacuum because of negative pressuren zone, make its aqueous vapor of assembling of condensing to discharge outside the blower, be trapped in the blower when long, make moisture infiltrate motor 200 inside easily, make motor 200 easily have the electric leakage situation to take place, even cause damage, be that it mainly lacks.

The model utility content:

Technical problem to be solved in the utility model is: at the above-mentioned deficiency of prior art, a kind of centrifugal blower moisture-proof construction is provided, it provides several through holes on the wall body of shell block, the motor of blower inside is kept dry, take place and reduce the electric leakage situation, and prolong the life time of blower.

In order to solve the problems of the technologies described above, the technological scheme that the utility model adopted is: a kind of centrifugal blower moisture-proof construction, and it is by a shell block, a motor, and a fan blade constitutes; Wherein has a containing space in this shell block, the both sides of this containing space are respectively equipped with a wind inlet and a wall body, this motor is arranged in this containing space, and this motor extends a live axle and fan blade is connected, and fan blade is that the axle center is rotated displacement movement with this live axle; Its characteristic point is: the wall body on the described shell block provides several through holes that makes containing space and extraneous mutual conduction.

So, this structure provides several through holes on the wall body of shell block, utilize this to count the through hole balance when motor activation fan blade is rotated displacement movement, the negative pressure state that the fan blade middle position is produced can directly be discharged outside the blower with accumulating in the interior humid air of blower negative pressuren zone, reaching moisture, avoid aqueous vapor to remain in the blower, blower inside is kept dry, take place, and prolong the life time of blower and reduce the electric leakage situation.

As for detailed construction of the present utility model, the effect of utilization principle and generation then with reference to the explanation of leu icon down, can reach completely and understand:

Description of drawings:

Fig. 1 is the cut-away view of common blower.

Fig. 2 is the three-dimensional exploded view of the utility model one preferred embodiment.

Fig. 3 is the three-dimensional combination figure of Fig. 2.

Fig. 4 is a left side three-dimensional appearance schematic representation embodiment illustrated in fig. 3.

Fig. 5 is a right side three-dimensional appearance schematic representation embodiment illustrated in fig. 3.

Fig. 6 is the cut-away view of Fig. 3.

Embodiment:

Referring to Fig. 2, Fig. 3-shown in Figure 4, be respectively three-dimensional exploded view, and the three-dimensional appearance schematic representation of the utility model one preferred embodiment, by finding out among the figure, the utility model mainly comprises a shell block 1, a motor 2, reaches a fan blade 3, this shell block 1 by a body 10, and a wind scooper 4 cover and form, form a containing space 11 in this shell block 1, and the both sides of this containing space 11 are respectively equipped with an exhaust outlet 12 and a

wind inlet

13, and 13 of this wind inlets are in body 10 1 sides, and 40 sides of wall body at wind scooper 4; This motor 2 just is contained in the containing space 11 of housing 1, and motor 2 one sides are extended a live axle 21; One fan blade 3 is that correspondence is combined on the live axle 21 of motor 2, and is that the axle center is rotated displacement movement with this live axle 21.

And most guide plates 121 are set in the exhaust outlet 12 of aforementioned body 10; Because wind scooper 4 is containing space 11 respective side that are covered on aforementioned shell block 1, one side of this wind scooper 4 is provided with the exhaust outlet 12 corresponding exhaust outlets 41 with body 10, also be provided with most guide plates 411 in this exhaust outlet 41, and the wall body 40 nearly central positions on the wind scooper 4 provide most through holes 42, make containing space 11 and extraneous mutual conduction in the housing 1, and most through holes 42 present and make radiation shape with the live axle 21 of motor 2 for the center and arrange.

When using, please join Fig. 5 in addition, shown in Figure 6, when being driven by motor 2, fan blade 3 wind inlet 13 of air by housing 1 can be sucked, and discharge with the exhaust outlet 41 of wind scooper 4 by the exhaust outlet 12 of body 10, and when motor 2 activation fan blade 3 are rotated displacement movement, the middle position that the live axle 21 and fan blade 3 pivots of motor 2 close can produce a negative pressure state, and form a negative pressuren zone A ' (as shown in phantom in Figure 6), this moment example with several through holes 42 that provide on the wall body 40 be subjected to negative-pressure sucking guiding and by the suitable air of outer suction, be able to the negative pressure pressure that balance fan blade 3 middle positions produce, make the humid air that is sucked by wind inlet 13, water droplet, directly pressurized and discharge by the exhaust outlet 12 and wind scooper 4 exhaust outlets 41 of body 10, motor 2 in the blower is kept dry, and then reduce its electric leakage situation generation, and expanded service life.

Described before combining, centrifugal blower moisture-proof construction of the present utility model has the motor of minimizing electric leakage situation really, and prolongs effect such as its life time.

Claims

1. centrifugal blower moisture-proof construction, it is by a shell block, a motor, and a fan blade constitutes; Wherein has a containing space in this shell block, the both sides of this containing space are respectively equipped with a wind inlet and a wall body, this motor is arranged in this containing space, and this motor extends a live axle and fan blade is connected, and fan blade is that the axle center is rotated displacement movement with this live axle; It is characterized in that: the wall body on the described shell block provides several through holes that makes containing space and extraneous mutual conduction.

2. centrifugal blower moisture-proof construction as claimed in claim 1 is characterized in that: most through holes on the described shell block are the spread geometry of setting.

3. centrifugal blower moisture-proof construction as claimed in claim 2 is characterized in that: described through hole is that the center is radial arrangement with the live axle of motor.