CN1606952A

CN1606952A - Dust separation mechanism of dust collector

Info

Publication number: CN1606952A
Application number: CN 200310106088
Authority: CN
Inventors: 钱东奇
Original assignee: Ecovacs Robotics Suzhou Co Ltd
Current assignee: Ecovacs Robotics Suzhou Co Ltd
Priority date: 2003-10-16
Filing date: 2003-10-16
Publication date: 2005-04-20

Abstract

A separation mechanism of dust collector consists of preceding stage cyclone separation part, backing stage cyclone separation part and connection channel for connecting two parts. There is a holed stop board in top of preceding stage cyclone chamber, said board is spiral down extended from the above of preceding stage stream entering channel. The preponderant dust grain may spiral down rotated and settled on the bottom of backing stage cyclone tank after sucked into the inner cavity of the preceding stage cyclone tank, so the separation part of preceding stage cyclone part may separate bigger and preponderant dust grain.

Description

The dust separation apparatus of dust catcher

Technical field

The present invention relates to a kind of dust separation apparatus of dust catcher,

Background technology

In the prior art, adopted two-stage dust cyclonic separation technology in the dust catcher of DYSON company, it comprises prime cyclonic separation part, back level cyclonic separation part, be used to be communicated with the interface channel of prime cyclonic separation part and back level cyclonic separation part, the prime cyclonic separation partly is used for bulky grain, heavier dust separates, thinner dust and air-flow are then through entering back level cyclonic separation part behind the interface channel, by back level cyclonic separation part tiny dust is separated, fine dust after the separation enters in the laying dust bucket, and clean air-flow is discharged in the atmosphere after fan blade through the negative pressure exit passageway.Described prime cyclonic separation partly comprises prime whirlwind bucket, be arranged at the prime air-flow admission passage of the top side wall portion of prime whirlwind bucket, be arranged at the laying dust bucket of the inner chamber central part of prime whirlwind bucket; Described back level cyclonic separation partly comprises a plurality of backs level whirlwind bucket, each back level whirlwind bucket is positioned at the top of laying dust bucket, the bottom of each back level whirlwind bucket has back level whirlwind bucket bottom opening, back level whirlwind bucket bottom opening is arranged in the inner chamber of laying dust bucket, the top of back level whirlwind bucket is fixed with central tube, this central tube stretches into downwards in the inner chamber of back level whirlwind bucket, and the upper portion side wall of back level whirlwind bucket is provided with back level air-flow admission passage.After air-flow rotates, enter interface channel in the inner chamber of prime whirlwind bucket, enter a back level air-flow admission passage from interface channel again and enter again in the level whirlwind bucket of back through the perforate side direction of the inboard bucket of prime whirlwind bucket wall.Because rotate rear side in prime whirlwind bucket, the air-flow of band dust enters interface channel to inwardly (edge haply towards axis direction); and the rotary speed of air-flow in this prime whirlwind bucket is lower; therefore heavy particle dust that should be separated also can be inhaled in the interface channel owing to the effect of negative pressure, causes prime cyclonic separation part dust-separating deleterious.

Summary of the invention

The object of the invention provides a kind of prime whirlwind bucket that makes and can separate heavier dust granule, the dust separation apparatus of the dust catcher of the interface channel of level and back level whirlwind bucket after a heavy dust can not enter.

Technical scheme of the present invention is: a kind of dust separation apparatus of dust catcher, comprise prime cyclonic separation part, back level cyclonic separation part, be used to be communicated with the interface channel of prime cyclonic separation part and back level cyclonic separation part, described prime cyclonic separation partly comprises prime whirlwind bucket, be arranged at the prime air-flow admission passage of the top side wall portion of prime whirlwind bucket, be arranged at the laying dust bucket of the inner chamber central part of prime whirlwind bucket; Described back level cyclonic separation partly comprises a plurality of backs level whirlwind bucket, each back level whirlwind bucket is positioned at the top of laying dust bucket, the bottom of each back level whirlwind bucket has back level whirlwind bucket bottom opening, back level whirlwind bucket bottom opening is arranged in the inner chamber of laying dust bucket, the top of back level whirlwind bucket is fixed with central tube, this central tube stretches into downwards in the inner chamber of back level whirlwind bucket, the upper portion side wall of back level whirlwind bucket is provided with back level air-flow admission passage, cavity between described prime whirlwind bucket and the laying dust bucket constitutes the prime cyclone chamber, the top of this prime cyclone chamber is provided with baffle plate, this baffle plate begins to extend spirally downwards from the top of prime air-flow admission passage, has many perforates on the baffle plate; Described prime cyclone chamber is connected with interface channel by perforate.

The present invention compared with prior art has following advantage:

Because the effect of gravity and helical baffle; heavier bulky grain dust in the inner chamber that is inhaled into prime whirlwind bucket after; can be rotated down by spiral; and air stream outlet is positioned at the tapping of the baffle plate at top; therefore the heavier dust of particle is difficult for overcoming the effect of gravity and moves up; heavier particle dust can be stayed the bottom in the level whirlwind bucket of back, so prime cyclonic separation part can play the effect that big heavier particle dust is separated.

Description of drawings

Accompanying drawing 1 is structure master's cutaway view of the present utility model;

Accompanying drawing 2 is the A-A direction cutaway view of accompanying drawing 1;

Accompanying drawing 3 is the B-B direction cutaway view of accompanying drawing 1;

Accompanying drawing 4 is the structure cutaway view of level cyclonic separation part after; Wherein:

1, negative pressure exit passageway; 2, central tube inner chamber; 3 central tubes; 4, filter barrier; 5, interface channel; 6, back level whirlwind inner chamber; 7, baffle plate; 8, prime air-flow admission passage; 9, prime cyclone chamber; 10, laying dust bucket; 11, prime whirlwind bucket; 12, the bucket end; 13, back level whirlwind bucket; 14, perforate; 15, laying dust chamber; 16, back level whirlwind bucket bottom opening; 17, back level air-flow admission passage; 18, level air-flow in back enters pipeline;

The specific embodiment

Referring to accompanying drawing 1 to accompanying drawing 4, particularly referring to accompanying drawing 1, a kind of dust separation apparatus of dust catcher, comprise prime cyclonic separation part, back level cyclonic separation part, be used to be communicated with the interface channel of prime cyclonic separation part and back level cyclonic separation part, described prime cyclonic separation partly comprises prime whirlwind bucket 11, be arranged at the prime air-flow admission passage 8 of the top side wall portion of prime whirlwind bucket 11, be arranged at the laying dust bucket 10 of the inner chamber central part of prime whirlwind bucket 11, the air-flow of band dust tangentially enters in the prime cyclone chamber 9 from prime air-flow admission passage 8, at baffle plate 7, prime whirlwind bucket 11, the bucket end 12, rotation in the prime cyclone chamber 9 between the laying dust bucket 10, big heavy dust is stayed in this prime cyclone chamber 9, and thin dust upwards enters in the interface channel 5 through perforate [14] with air-flow, described interface channel 5 is positioned at the outside of each back level whirlwind bucket 13, be provided with in the described interface channel 5 and filter barrier 4, interface channel 5 is by the intracavity inter-connection of each back level air-flow admission passage 17 with each back level whirlwind bucket 13.Filtering barrier 4 can be big and light dust, scraps of paper class dust for example, and every in interface channel 5, and fine dust can be by filtering in the inner chamber that barrier 4 enter back level whirlwind bucket 13.Described back level cyclonic separation part as accompanying drawing 1 to shown in the accompanying drawing 4, level whirlwind bucket 13 after it comprises six, each back level whirlwind bucket 13 is positioned at the top of laying dust bucket 10, the bottom of each back level whirlwind bucket 13 has back level whirlwind bucket bottom opening 16, back level whirlwind bucket bottom opening 16 is arranged in the inner chamber of laying dust bucket 10, and the fine dust after separated can enter in the laying dust chamber [15] through this whirlwind bucket bottom opening 16.The top of back level whirlwind bucket 13 is fixed with central tube 3, this central tube 3 stretches into downwards in the inner chamber of back level whirlwind bucket 13, the upper portion side wall of back level whirlwind bucket 13 is provided with back level air-flow admission passage 17, this back level air-flow admission passage 17 is used for air-flow and tangentially enters back level whirlwind inner chamber 6, and the central tube inner chamber 2 that clean air communication is crossed in the central tube 3 enters the negative pressure exit passageway, is discharged to outside the machine behind the blade of motor.As accompanying drawing 1 to shown in the accompanying drawing 3, cavity between described prime whirlwind bucket 11 and the laying dust bucket 10 constitutes prime cyclone chamber 9, the top of this prime cyclone chamber 9 is provided with baffle plate 7, this baffle plate 7 begins to extend spirally downwards from the top of prime air-flow admission passage 8, make air-flow after prime air-flow admission passage 8 sucks, can be under the guiding of baffle plate 7, be rotated down along the cavity spiral between the inwall of the outer wall of laying dust bucket 10 and prime air-flow admission passage 11, make heavier particle be split into the outside, bottom of prime cyclone chamber 9.Have many perforates 14 on the baffle plate 7; Described prime cyclone chamber 9 is connected with interface channel 5 by perforate 14, and described many perforates 14 are opened on the baffle plate 7 away from prime air-flow admission passage 8, as shown in Figure 3.

Claims

1, a kind of dust separation apparatus of dust catcher, comprise prime cyclonic separation part, back level cyclonic separation part, be used to be communicated with the interface channel of prime cyclonic separation part and back level cyclonic separation part, described prime cyclonic separation partly comprises prime whirlwind bucket [11], be arranged at the prime air-flow admission passage [8] of the top side wall portion of prime whirlwind bucket [11], be arranged at the laying dust bucket [10] of the inner chamber central part of prime whirlwind bucket [11]; Described back level cyclonic separation partly comprises a plurality of backs level whirlwind bucket [13], each back level whirlwind bucket [13] is positioned at the top of laying dust bucket [10], the bottom of each back level whirlwind bucket [13] has back level whirlwind bucket bottom opening [16], back level whirlwind bucket bottom opening [16] is arranged in the inner chamber of laying dust bucket [10], the top of back level whirlwind bucket [13] is fixed with central tube [3], this central tube [3] stretches into downwards in the inner chamber of back level whirlwind bucket [13], the upper portion side wall of back level whirlwind bucket [13] is provided with back level air-flow admission passage [17], it is characterized in that: the cavity between described prime whirlwind bucket [11] and the laying dust bucket [10] constitutes prime cyclone chamber [9], the top of this prime cyclone chamber [9] is provided with baffle plate [7], this baffle plate [7] begins to extend spirally downwards from the top of prime air-flow admission passage [8], has many perforates [14] on the baffle plate [7]; Described prime cyclone chamber [9] is connected with interface channel [5] by perforate [14].

2, the dust separation apparatus of dust catcher according to claim 1 is characterized in that: described many perforates [14] are opened on the baffle plate [7] away from prime air-flow admission passage [8].

3, the dust separation apparatus of dust catcher according to claim 1, it is characterized in that: described interface channel [5] is positioned at the outside of each back level whirlwind bucket [13], be provided with in the described interface channel [5] and filter barrier [4], interface channel [5] is by the intracavity inter-connection of each back level air-flow admission passage [17] with each back level whirlwind bucket [13].