SE466978B - Arrangement for generating sound signals - Google Patents

Arrangement for generating sound signals

Info

Publication number
SE466978B
SE466978B SE9003767A SE9003767A SE466978B SE 466978 B SE466978 B SE 466978B SE 9003767 A SE9003767 A SE 9003767A SE 9003767 A SE9003767 A SE 9003767A SE 466978 B SE466978 B SE 466978B
Authority
SE
Sweden
Prior art keywords
compressor
compressed air
relay
motor
arrangement
Prior art date
Application number
SE9003767A
Other languages
Swedish (sv)
Other versions
SE9003767L (en
SE9003767D0 (en
Inventor
M Moritz
Original Assignee
Kockum Sonics Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kockum Sonics Ab filed Critical Kockum Sonics Ab
Priority to SE9003767A priority Critical patent/SE466978B/en
Publication of SE9003767D0 publication Critical patent/SE9003767D0/en
Publication of SE9003767L publication Critical patent/SE9003767L/en
Publication of SE466978B publication Critical patent/SE466978B/en

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K7/00—Sirens
    • G10K7/06—Sirens in which the sound-producing member is driven by a fluid, e.g. by a compressed gas
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/02—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by gas; e.g. suction operated
    • G10K9/04—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by gas; e.g. suction operated by compressed gases, e.g. compressed air

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Compressor (AREA)

Abstract

In an arrangement for generating sound signals using compressed air, use can be made of an electric, chargeable battery 2 as an energy source, by generating the compressed air directly using a compressor of great capacity driven by an electric motor. Control of the signals takes place by a relay-controlled solenoid valve 11 in a compressed-air line 7 between the compressor 6 and a sound generator 8, while control of the motor compressor unit 5, 6 takes place using a relay 4 which is in turn controlled by a delay arrangement 9 which keeps the compressor in operation for roughly a second after a stop signal. <IMAGE>

Description

466 978 Föreliggande uppfinning avser en anordning för alstring av högeffektljudsignaler med tryckluft utan användning av trycklufttank, omfattande ett laddningsbart batteri som energikälla samt en elmotordriven kolvkompressor, som står i direkt rörförbindelse med en tryckluftsdriven ljudgenerator, och ett primärrelä, som dels styr förbindelsen mellan kompressorns drivmotor och batteriet, dels genom en ventil styr direktförbindelsen mellan kompressorn och ljudgeneratorn. The present invention relates to a device for generating high-power audio signals with compressed air without the use of a compressed air tank, comprising a rechargeable battery as energy source and an electric motor-driven reciprocating compressor, which is in direct pipe connection with a compressed air-driven sound generator, and a primary relay motor. and the battery, partly through a valve controls the direct connection between the compressor and the sound generator.

Ehligt föreliggande uppfinning är anordningen kännetecknad av att mellan nämnda primärrelä och ett startrelä för motorn en fördröjningsanordning, avsedd att fördröja stoppsignaler under ca en sekund, har insatts.According to the present invention, the device is characterized in that a delay device, intended to delay stop signals for about one second, has been inserted between said primary relay and a starting relay for the motor.

Uppfinningen komer i det följande att beskrivas närmare under hänvisning till bifogade ritning, som visar ett kopplingsschema för en anordning enligt uppfinningen.The invention will be described in more detail below with reference to the accompanying drawing, which shows a wiring diagram for a device according to the invention.

Den visade anordningen omfattar ett med streckprickade linjer ritat plåtskåp l, som innehåller ett batteri 2 - exempelvis med 21+ volt spänning och 60 Ah kapacitet. Batteriet 2 är avsett att laddas med en batteriladdare 3, som anslutits till det vanliga elnätet. Batteriet 2 står via ett relä 4 i förbindelse med en elmotor 5, som- kopplats till en tryckluft- kolvkompressor 6. En tryckluftsledning 7 förbindar kompressorn 6 med en tryckluftsdriven 1 judgenerator 8.The device shown comprises a sheet metal cabinet 1 drawn with dotted lines, which contains a battery 2 - for example with 21+ volt voltage and 60 Ah capacity. The battery 2 is intended to be charged with a battery charger 3, which is connected to the regular mains. The battery 2 is connected via a relay 4 to an electric motor 5, which is connected to a compressed air piston compressor 6. A compressed air line 7 connects the compressor 6 to a compressed air driven 1 jud generator 8.

Reläet 4 styrs via en fördröjningsanordning 9 av ett primärrelä 10, som även styr en magnetventil ll i ledningen 7 mellan kompressorn och ljudgeneratorn 8. Fördröjningsanordningen 9, som exempelvis kan innehålla en kondensator, bryter strömmen till motorn 5 en sekund efter att strömmen i en ledning 12 brutits. Startsignaler fördröjs ej. Primärreläet lO styrs med signaler från telenätet 12.The relay 4 is controlled via a delay device 9 by a primary relay 10, which also controls a solenoid valve 11 in the line 7 between the compressor and the sound generator 8. The delay device 9, which may for instance contain a capacitor, cuts off the current to the motor 5 one second after the current in a line 12 brutits. Start signals are not delayed. The primary relay 10 is controlled by signals from the telephone network 12.

Motorn 5 behöver en effekt på ca 2 kW för att kunna alstra tryckluft till generatorn 8 för emission av 140 dB. 4e6_97s; Kompressorn 6 bör ha hög verkningsgrad för att minimera energiförbrukningen. Den utföres lämpligen som en kolvkompressor, vilket medför en minsta stopp-starttid på ca en sekund.The motor 5 needs an output of about 2 kW to be able to generate compressed air for the generator 8 for emission of 140 dB. 4e6_97s; The compressor 6 should have a high efficiency to minimize energy consumption. It is suitably designed as a piston compressor, which entails a minimum stop-start time of about one second.

Den beskrivna anordningen fimgerar på följande sätt: Vid signal från televerket 12 aktiveras prirnärreläet 10, som dels öppnar magnetventilen 11 i ledningen 7, dels via anordningen 9 påverkar reläet 4 till omedelbar start av motorn 5 och därmed kompressorn 6. En entonig 1 judsignal kornmer nu att utsändas från ljildgeneratorn 8.The described device operates as follows: Upon signal from the telecommunications unit 12, the near-relay 10 is activated, which partly opens the solenoid valve 11 in the line 7, partly via the device 9 influences the relay 4 to immediately start the motor 5 and thus the compressor 6. A monotonic 1 jud signal now to be emitted from the sound generator 8.

Om det önskas en signal med frekvens på exempelvis 3 Hz, kan start- stoppsignaler via telenätet 12 med denna frekvens aktivera magnetventilen ll på motsvarande sätt. Fördröjningsanordningen 9 orsakar att motorn och kompressorn arbetar kontinuerligt, även när signal via telenätet 12 och ventil 11 pulserar. Motorn och kompressorn stannar först en sekund efter signalens 12 upphörande.If a signal with a frequency of, for example, 3 Hz is desired, start-stop signals via the telephone network 12 with this frequency can activate the solenoid valve 11 in a corresponding manner. The delay device 9 causes the motor and the compressor to operate continuously, even when the signal via the telephone network 12 and valve 11 pulsates. The motor and compressor do not stop until one second after the end of the signal 12.

Den visade och beskrivna anordningen har lågt anskaffningspris, litet servicebehov, hög verkningsgrad och är mycket pålitlig - d v s okänslig för störningar.The device shown and described has a low acquisition price, low need for service, high efficiency and is very reliable - ie insensitive to disturbances.

Claims (1)

1. 466 978 PATENTKRÄV Anordning för alstring av högeffektljudsignaler med tryckluft utan användning av trycklufttank, omfattande ett laddningsbart batteri (2) som energikälla samt en elmotordriven kolvkompressor (6), som står i direkt rörförbindelse (7) med en tryckluftsdriven ljudgenerator (8), och ett prirnärrelä (10), som dels styr förbindelsen mellan kompressorns (6) drivmotor (5) och batteriet (2), dels genom en ventil (ll) styr direktförbindelsen mellan kompressorn (6) och ljudgeneratorn (8), g k ä n n e t e c k n a d av att mellan nämnda primärrelä (10) och ett startrelä (4) för motorn (5) en fördröjningsanordning (9), avsedd att fördröja stoppsignaler under ca en sekund, har: insatts.A device for generating high-power audio signals with compressed air without the use of a compressed air tank, comprising a rechargeable battery (2) as an energy source and an electric motor-driven reciprocating compressor (6), which is in direct pipe connection (7) with a compressed air-powered sound generator (8) and a primary relay (10), which partly controls the connection between the drive motor (5) of the compressor (6) and the battery (2), partly through a valve (11) controls the direct connection between the compressor (6) and the sound generator (8), characterized by that between said primary relay (10) and a starting relay (4) for the motor (5) a delay device (9), intended to delay stop signals for about one second, has been inserted.
SE9003767A 1990-11-27 1990-11-27 Arrangement for generating sound signals SE466978B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9003767A SE466978B (en) 1990-11-27 1990-11-27 Arrangement for generating sound signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9003767A SE466978B (en) 1990-11-27 1990-11-27 Arrangement for generating sound signals

Publications (3)

Publication Number Publication Date
SE9003767D0 SE9003767D0 (en) 1990-11-27
SE9003767L SE9003767L (en) 1992-05-04
SE466978B true SE466978B (en) 1992-05-04

Family

ID=20381017

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9003767A SE466978B (en) 1990-11-27 1990-11-27 Arrangement for generating sound signals

Country Status (1)

Country Link
SE (1) SE466978B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7063040B2 (en) 2004-04-20 2006-06-20 David Terry Woods Portable air horn apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7063040B2 (en) 2004-04-20 2006-06-20 David Terry Woods Portable air horn apparatus

Also Published As

Publication number Publication date
SE9003767L (en) 1992-05-04
SE9003767D0 (en) 1990-11-27

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