DE7830718U1 - ELECTRIC COMPRESSOR FOR ACOUSTIC WARNING DEVICES FOR MOTOR VEHICLES - Google Patents

Description

"■. · D 58 £ ί» -

October 12, 1978

F.I.A.M.H. 3 · ρ · Α · Fabbrica Italiana Accumulstorl Motacarri Montecchio, Montecchio Hagglora (Uicenzs) Italy

Electric compressor for electronic liJarn devices for motor vehicles

The invention relates to an electric compressor for acoustic tanned.

The present invention therefore relates to one electrical system Compressor for ak.-ustiacha blarn device. For motor vehicles in general, which consists of an electric motor, preferably a direct current motor, and a rotating air compressor with rotating blades or pallets which are arranged coaxially to the motor.

In compressors of the above type of compressor] ■ forms a body a DBR Kopftsile the engine · In the interior of this body, in the actual compression chamber Motortuelle faces on which a cylinder is keyed, is has recesses which are adapted genauaoviele To accommodate the wings of the pallet, dia

serve to pump the air: the geometrical configuration and the arrangement of the wings or pallets is known. The who The cover that closes the compression chamber has so far been fastened to the compressor body with the help of ο screws «

The above system has manufacturing drawbacks: in fact, in large-scale production, the Screws, generally three in number, are fastened by means of a multiple screw belt with an automatic feeder. in the With regard to the spatial gains, this screwdriver was constantly subjected to all kinds of hindrances and inhibitions, and in addition the cover plate, which for technical reasons contained no clues to be kept in his lay so the holes of the lid and the body are exactly opposite each other until the screws have been tightened. Another The disadvantage of the above known system is that the compressor for repair and Ulartungszuecks by unsuitable and / or intended for this purposeB can be removed from persons, too after it has come out of the manufacturing plant and has been mounted on the vehicle. Fiddling with the compressor by inexperienced people and unaccompanied persons may as a result of the change in the pneumatic characteristics of the compressor and, consequently, the change the accumulative characteristics of the horns that are operated by this compressor «

LJis is known, in fact, the (acoustic) level is the output from a pneumatic horn Klsngdruckss engstena connected to exercise amount of air supplied with the DSA Uird urine itself. There are national and local regulations, which require that certain values for the sound level, even with new loudspeakers, never be observed in those that are already in use, provide that the acoustic characteristics are well defined by the same regulations In order to ensure compliance, the inventor has developed an external compressor that cannot be removed and dismantled, in such a way that the power supplied to the HQrnsr! Luftmsnge cannot be gaändsrt uardan by inexperienced and untrained persons, for example ωεηη they open the compressor uau. This newly developed system also has particular advantages that relate to the Haratallungazyklua described above.

* The SyBtBOT consists in that the dachshund is not fastened to the body of the body with screws, but with the help of a ring made of metal or some other material, Dar with the help of suitable angles, Schisbern or the like., The e.g. can be achieved by crimping or pressing, which keeps the two parts intimately connected. According to the invention is at dar new arrangement provided that the cover of the air compressor at the corresponding KomprsBSOrkBrper with the help of an inside, to Cylindrical generatrices running along the inside of the circumference here bent odBr beaded ring is attached to it

serves to attach the cover to the KomprsssorkSrper and the

| - to keep both parts intimately connected. This

The ring can only be attached with the help of basnary tools

I. therefore its application is not easily reproducible

'; and sr is a kind of permanent seal

3 According to a further invention, the arrangement can also be applied f be that the electric compressor is equipped with a along

of the ringfurmigan part shaped in this way, dad '', this the seat or the receptacle for inserting one

Screw head forms, tißlchar bracket pierced in such a way is that the shaft of the screw retains the bracket

Ϊ emerges, uobai the screw to fix the bracket of the front sight : or the horn on the bracket of the compressor itself is used *

In the drawing are exemplary embodiments of the subject matter of Invention shows »It is tender

Fig. 1 · an ElektrokomprsssDr according to the invention for

acoustic warning devices in a side view, furniture dBr eigantlicha Kompreasor zuiecka bssssrar Representation of the invention is partially cut,

Fig. 2 dan electric compressor according to Fig. 1 in a plan

looks from the side of the actual compressor . bus seen and

till I

Fig. 3 and k an example of the attachment of the invention

in accordance with the complete overhaul tax on the vehicle using the below-described features relating to the fastening bracket according to the invention in a blue side view bztti. in a top view

In Fig. 1, 1 denotes the lower cover of the motor, 2 denotes the stator dBB MatorB and 3 denotes the compressor body, the central tail of which is delimited by the lines 1, 5 and 6 through diB in the drawing, which is not visible in the drawing diB KomprBesionBkammer forms Umlauft in the duv cylindrical in eccentric arrangement rotor 7 dBR entrains the wings or pallets β, the dag pumping the air towards euf the outlet or the Abfuhrmundung 9 perform the above ßine flexible line 2k (FIG. h ) is connected to the pneumatic horns 23 (Fig. 3 bzui. h) and 23 "(Fig. 3 bzui. t"). The cover 10 closes the upper part of the compression chamber along the line k , the ring 11, preferably made of metal, enables the ends of the same annular ring 11 to be tied around or bends 12 and 13 since the cover 10 is connected to the body of the compressor 3 and is kept in intimate contact. In addition, 2 · denotes the motor source, which takes the rotor 7 with it, and 10 · sin ring, which serves to seal between the cover 10 and the above-described Korapressionskammsr.

- S-

From the above description it can be seen that it is for up or To clear dea Kaaipraasors is of course "to remove the lid, and consequently to destroy dBn ring 11 and then to replace it. These operations cannot be carried out without using appropriate and specific methods, dia normally only available at the manufacturing company.

The system described above serves as a guarantee that the Compressor cannot be opened and unopened outside of the manufacturing plant after being in the factory on a regular basis It has been examined and tested, and consequently the Reproduction of the sound of the Hürner powered by this compressor guaranteed"

Hit Ik is the bracket for attaching the compressor to the vehicle, which can be rotated around the compressor so that the best orientation of the outlet or discharge line 9 can be selected, and finally it can be blocked in its position on the compressor by pressing πιβπ the complex bus screws IS and nuts 16 (Fig. 2) tightly. The BügBl 1 * + is known, but the subject of the present invention is the design of the circular part of the BUgBlB, which contains the two shoulders 17 and IB and the flat surface 19 and the disc 20 »

The above configuration of the nozzle 14 and the screws 20

3 and 4 are used to attach a horn or several Ηογπβγ to the compressor without having to make any additional holes in the body of the vehicle, provided that the space at the assembly or installation site allows this. In Fig. 3, for example, 21 denotes the sheet metal that forms the KsroBsarle of the vehicle. The compressor is shown at 22, the outlet or discharge line 9 of which is aligned for the air in a suitable manner with reference to the bracket 14. is oriented in order to achieve that the pipe 2k, which feeds the air to the horns, e.g. two Ηο'γπβγ, which are marked 23 and 23 », has the smallest length and the smallest number of bends»

The bracket 25 is a piece that is generally supplied as an item of equipment for the horns. The bracket 25 can do that on the bracket Compressor 14 attached to the elements already described uerdBn, i.e. with the help of the screw 20, which is in a suitable Ueiaa used, and with the help of a cutter 26

Claims (5)

• Γ 1 PB · t · ♦ * ··· · G 78 3o 718.3 D 5864 - reh 2o. May 198o Έ.I.A.M.M. Spa. Fabbrica Italiana Accumulator! Motocarri Montecchio, MonteccMo Maggiore (Vicenza) Italy Electric compressor for acoustic warning devices for motor vehicles claims 1. Electric compressor for acoustic warning devices, characterized in that the cover (1o) of the air compressor on the corresponding compressor body with the help of an inward, to the inside of the cylindrical one running along the circumference Generating to bent or crimped ring (11) is attached, which serves to the lid on To attach the compressor body and to keep the two parts intimately connected. - 2 - * 4 · c r * c - 2 - 2. ElektiOkomprössor according to claim 1, characterized in that that the Hing consists of a tubular element (11), the two ends (12, 13) of which are bent or flanged inward, in order in this way to form an edge form, on the one hand with one end on the cover and on the other hand with the other, opposite end on the compressor body attacks. 3. Electric compressor according to claim 2, characterized in that the ring (11) consists of a metallic tube consists, which is mechanically crimped against the lid and against the corapressor body. '• l ·. Electric compressor according to claim 2, characterized in that that the ring (11) made of one by spraying or injecting metallic material or another Material, preferably thermoplastic material, is made ring body. 5. Electric compressor according to one of claims 1 to 4-, characterized in that it is provided with one shaped in such a manner along the annular part Bracket (14) that this_. the seat or the receptacle for the Insertion of a screw head (screw 2o) forms which bracket is pierced in such a way that the Shank (2o) of the screw emerges to the outside of the bracket, the screw for fastening the bracket of the horn or the horns on the bracket of the compressor itself are used.