CN1988834A - Vacuum cleaner provided with components made of expanded polypropylene - Google Patents

Abstract

The invention relates to a vacuum cleaner provided with components made of expanded polypropylene, wherein at least one component of the device body or at least one insert fixed to said body is made of expanded polypropylene.

Description

Dust catcher with composed component of making by the dilatancy polypropylene

Technical field

[01] the present invention relates to the especially field of household appliances of structure of dust collector of dust catcher.

Background technology

[02] traditionally, the home appliance that comprises dust catcher, be integrated with various available plastic materials for the consideration of making a profit, along with the application technology of various polymer and the development of different performance thereof, can be every kind of specific function and select a kind of special material: hear resistance, rigidity or pliability, noise reduction, aesthetic etc.. nowadays, about six kinds of different plastic materials: ABS, polyamide, polyethylene, polypropylene, polyvinyl chloride, elastomer etc. have been used in the main body of dust collector.

[03], produces a plurality of members respectively and they are fixed for the forming device main body and be used for lid, filter element support of dust collection bag groove chamber etc.

[04] plastic material that uses in the dust catcher is thin as far as possible, so that the weight of limiting device and reducing in its use, for example climbs Lou Shihuo when sweeping stair, the necessary power of operation dust catcher, and this operation is to cause tired key factor.

[05] matter of utmost importance that therefore runs into when producing dust catcher is the weight that alleviates equipment, and this problem is to pay close attention to forever for the manufacturer of dust catcher.

[06] contradicts with the robustness of equipment by the weight saving that shell and main body attenuation are realized.In fact, the weight of the employed plastic material of production dust catcher reaches the upper limit by the robustness defined of integral body soon.

[07] therefore second problem is in the weight of weight that greatly alleviates employed plastic material and dust catcher, keeps the robustness of shell and main body.

[08] thickness that reduces shell in the current dust catcher can produce counter productive to the equipment noise equally.The consequence that reduces material is that the noise of motor can not be limited in inner fully and dust catcher is noisy, and this often causes being equipped with foamed plastics around motor.

[09] no matter nowadays will eliminate the harm of the noise of all kinds, be the noise that common noise or the room noise, the especially housework that itself are produced by the individual cause.

[10] therefore the 3rd problem is when keeping device housings and main body robustness, when alleviating assembly weight, reduces the noise of dust catcher.

[11] dust catcher moving in doors is not one usually and makes us quite happy operation, and in fact, equipment uses under taking care of not having, and therefore runs into the various objects of placing in furniture, wall or the residence through regular meeting's generation equipment.In this case, because the rigidity of dust catcher framework often is damaged by the impact portions branch.

[12] thus the 4th problem facing of dust catcher manufacturer be that the good mechanical properties of framework and possible damping property are combined so that the influence that restriction is caused by not careful operation.A solution that can find this problem especially is promptly by around the rubber ferrule of equipment body, realize as an endless belt.Such solution produces very important excess charges.

[13] in addition, under the waste material of all kinds, especially service life existing situation that overdue home appliance reclaims, concern for the environment and all manufacturers that are conceived to sustainable development seek and are used to limit the weight that needs regrown material and use the method for salvage material easily as much as possible.In fact known dust catcher to the influence of environment to a great extent from its formation.

[14] the 5th problem of therefore producing dust catcher and being proposed be material can be easily, and if possible be recovered fully.

Summary of the invention

[15] thereby, the present invention is intended to solve these main difficult problems, that is to say, but is intended to realize a kind of in light weight, robustness strengthens, noise level is lower than known the type equipment damping and recuperability improves when expiring service life dust catcher.

[16] according to the present invention, comprise the dust catcher of plastic material part, it is characterized in that at least one element in the composed component of equipment body is made by dilatancy polypropylene (polypropylene expans é).

[17] so-called equipment body should be understood to the device external visible part, its desirable a plurality of titles: casing, shell, framework

[18] advantageously, at least one plug-in unit that is fixed on the described equipment body is made by the dilatancy polypropylene.

[19] dilatancy polypropylene (PPE) is formed by the pearl by the steam pressure molding.PPE uses in motor vehicle (damper) especially recently mainly as the material that absorbs collision, and it has a lot of attractive advantages: up to 110 ℃ hear resistances, excellent stability, light, shock resistance, recuperability etc.Yet, its weak mechanical strength make its current can only be as supplementary material when implementing sub-component.

Therefore [20] the present invention has also introduced the component parts of the equipment body of certain rigidity that made by PPE, essential, stability and mechanical strength, and originally PPE does not consider and be used for this purposes.

[21] another object of the present invention is an optimization polypropylene in the selection of plastic material.Another object of the present invention is to use the plastic material of single kind type, i.e. polypropylene in the entire body of dust catcher more than 90% ground.So polypropylene can two kinds of forms be used: conventional polypropylene (PP) and dilatancy polypropylene (PPE) with traditional performance of plastic material.

Description of drawings

[22] other features and advantages of the present invention will embody from the description of hereinafter being done in conjunction with the accompanying drawing that provides in the limiting examples mode.

[23] Fig. 1 is a dust catcher side view of simple section longitudinally.

The specific embodiment

[24] as shown in Figure 1, a dust catcher generally includes a motor 4, and this motor produces suction force and air circulation, and discharge until the rear portion to equipment the pipeline (not shown) end of described air circulation from be connected to an opening that is arranged on the main body of dust collector.In the process of described dust out, air-flow passes and holds the groove chamber 10 that dust reclaims filter bag.

[25] main body of dust catcher is formed by two independent productions and with a critical piece that is assembled on another:

[26]-one bottom main body 1, it is furnished with one and is used for the seat groove of motor 4, the sound-insulation member of internal partition 8 forms, and different spaces, described different spaces is arranged to be used for cable channel, positioning motor filter (filtres moteurs) and control member 9 as bull wheel and steamboat.Sub-body 1 also is furnished with a plug-in unit 7 that is used for tube connector is attached to inhalator.

[27]-one upper body 2, are equipped with the closing cap 3 of control member 5, dust bag groove chamber on it, and may also be equipped with a groove with cover that is used to receive various suction attachment such as little brush, suction nozzle etc.

[28] one folding or fixing handles 6, or a recess with handle function are arranged on the shell sometimes, and preferred arrangements is on the sub-body 1 of equipment.

[29] therefore according to the present invention, the composition material of dust catcher is sub-body 1 at least, and preferred upper body 2, also is dilatancy polypropylene (PPE).

[30] because any material all contains a large amount of air, so PPE has the heat insulation and sound insulation capabilities that significantly improves, in fact this is a kind of good material that is particularly useful for absorbing the big noise of the type home appliance.

[31],, can reduce this harm with the performance that reduces motor noise by using PPE in all possible in dust catcher elements according to structure with respect to the dust catcher of making by ABS commonly used or non-expansibility polypropylene plastics.

[32] however for enough robustnesses are provided, the low mechanical strength of PPE requires significantly to increase the thickness of wall.But astoundingly, though required material volume thereby cause dust catcher bigger than common volume, but the quality of plastic material can reduce in a large number, and final dust catcher weight can reduce by half.

[33] lower quantity of material also has superiority from economic angle, because it is lower to make the cost of dust catcher.

[34] be used to make the conventional plastic of dust catcher with respect to other, the big pliability of PPE allows damping property to improve.According to dilation, the elastic memory of described material is relevant with this big pliability, this be assemblied in equipment body on the fit on of different make-up pieces also show important advantage.In fact, therefore for example can be without hinge hinged different lid, and by material deformation they are locked simply.This unique characteristic also allows with a wet finger by chimeric fixing pluge.

[35] in fact only need " forcing " this material deformation so that locking or fix a plug-in unit, this material is replied its shape again after distortion, so that keep described assembly.

[36] for the efficient of the pumping efficiency and the various filter mechanisms of motor, therefore different parts also assemble in the mode of very sealing, and this shows great advantage aspect noise transmission.The big pliability of PPE allows locking a plurality of parts, plug-in unit or cable in absorbing material, especially under the effect of motor vibration, they can not moved in time.

[37] high leakproofness of material itself allows to avoid or at least greatly limit the use of sealing ring, and especially in suction channel, this is being economical aspect quantity of material of dust catcher and the installation time.

[38] thus dust catcher advantageously have at least one assembly (assemblage), described assembly is between a part and another part of being made by the dilatancy polypropylene, be achieved by described dilatancy polypropylene part deformation.Except that the mechanical strength of part, this distortion can allow to realize being tightly connected.

[39] because the big distortion possibility of material can be pressed the various plug-in units of insertion in sub-body 1 or upper body 2 in the assembling process.Thereby the easier production of the part that is inserted into, because needn't on equipment body, be provided for the reciprocity part fixed.

[40] because rational and effective embeds design, and be still by the pliability of material and the ability of its reinstatement, can realize cancelling all hold-down screws between each assembly (circuit board, wheel etc.) and the part, this is the dismounting when expiring service life for convenience.

[41] still because include a large amount of air in material, material PPE shows the shock-absorbing performance that has improved, and these vibrations produce the noise outside the motor noise usually, for example at the control member place.

[42] can consider to implement the PPE part of maximum quantity as far as possible according to the present invention, and adopt standard polypropylene, thereby be easy to use the recovery of life-span dust catcher when expiring in the place that can not use this material.If different members is used identical polymer, one removes motor, and this recovery is more prone to.

[43] in fact particularly for the reason on the function, can consider to make button, indicator lamp, bull wheel and steamboat with another material that is different from PPE, for example indicator lamp must be made by transparent plastic.Under this possibility, standard polypropylene is owing to being better than other polymer with the equipment body compatibility.In order to reclaim polymer and it to be utilized again,, can carry out the fusing or the crushing operation of dust catcher integral body in case remove motor.

[44] use the unitary plastic material having significant advantage aspect the raw materials inventory reducing, and improved effective appreciation rate of equipment when expiring service life largely.The dismounting of equipment mainly is metal parts (mainly being motor and cable) and described unitary plastic material are separated.

[45] another advantage of material PPE is its soft-touch, and more comfortable by the dust catcher operation that these goods are made, this can show the additional commercial advantage that combines with aforementioned major technique function.

[46] can carry out many modification to dust catcher according to the present invention, especially can consider to be provided with the automatic winder of a motor stube cable or the manual device on its periphery in sub-body 1 inside, for example it is the form of projecting member, and can implement a multi-functional dust catcher within the scope of the present invention.

[47] can consider within the scope of the present invention that equally also multi-form sub-body or upper body and PPE constitute part.Plug-in unit, lid, handle or adapter that quantity does not wait can be set within the scope of the present invention.

[48] sub-body 1 of preferred dust catcher, upper body 2, lid 3 and possible transportation handle 6 are made by PPE.Within the scope of the present invention, indicator lamp, control member 5 and control member 9 can be made by the non-expansibility polypropylene, but can consider that also each associated components such as control member, bull wheel or steamboat made by PPE.

[49] some dust catcher sample can be considered to form by the part of expansile or traditional polypropylene plastics material is whole.

[50] certain, the invention is not restricted to shown in the way of example and embodiment that describe, it also comprises all equivalent technologies and their combination.

[51] to use the dilatancy polypropylene by the dilation of the quality definition of every liter of material (polypropylene).To preferably use every liter of material at the content between the 40g to 80g.

[52] as embodiment, comprise by PPE (every liter of material 60g) if the 3.5kg that the 6.7kg the when realization of the dust catcher of the sub-body of making, upper body and lid allows weight mainly to be ABS by the material of making these parts becomes these parts when being made by PPE, although approximately thick four times on the wall when using PPE.

When [53] moving in addition, because element is attached on the PPE part quite securely, described equipment thereby show good rigidity.

[54] in addition, the equipment rate of recovery becomes more than 90% by 70%.

[55] in addition, the big thickness of wall can allow to implement by suitable sealing the groove chamber of smallclothes cleaning accessory in this thickness.

[56] advantage of therefore such dust catcher with the manufacturing of dilatancy polypropylene part is many-sided:

[57]-gross weight of dust catcher can reduce greatly, and do not lose its necessary strong character, the polyacrylic density of dilatancy is especially little.

[58]-and the noise in equipment when work is low, and air contained in the material has absorbed motor noise to a large extent.

[59]-and material is flexible, therefore damping easily of dust catcher, thereby this has limited the danger that furniture and wall bring.

[60]-reduced quantity of material.

[61]-dust catcher in the different plastic material parts of different purposes can preferably make by identical polyacrylic polymer with its expansile form, this can make things convenient for the recovery of dust catcher when expiring service life.

[62]-and vibrations are absorbed by material, thus the comfortableness that helps using.

[63]-and the cost of producing such dust catcher is lower than conventional cleaners, especially is assembling easily, and member can design simplyr, and can cancel some part such as packing ring.

[64]-and last, this material itself shows than being used to produce current known and the more comfortable sense of touch of the plastics dust catcher that uses.

Claims (7)

1. comprise the dust catcher of plastic material part, it is characterized in that at least one element in the composed component of equipment body is made by the dilatancy polypropylene.

2. dust catcher as claimed in claim 1 is characterized in that, at least one plug-in unit that is fixed on the described equipment body is made by the dilatancy polypropylene.

3. each described dust catcher in the claim as described above is characterized in that described main body of dust collector comprises a bottom main body (1) and a upper body (2); And described at least sub-body (1) is made by the dilatancy polypropylene.

4. dust catcher as claimed in claim 3 is characterized in that, the sub-body of described dust catcher (1), upper body (2), lid (3) and transportation handle (6) are made by the dilatancy polypropylene.

5. in the dust catcher as claimed in claim 1, it is characterized in that indicator lamp, control member (5) and control member (9) are made by polypropylene.

6. each described dust catcher in the claim as described above, it is characterized in that, it comprises at least one assembly, and described assembly is between a part and another part of being made by the dilatancy polypropylene, be achieved by described dilatancy polypropylene part deformation.

7. each described dust catcher in the claim as described above is characterized in that described dilatancy polypropylene quantitatively be that every liter of material is between 40 grams restrain to 80.