DE746969C - Device for dewatering electric vehicle engines - Google Patents

Device for dewatering electric vehicle engines

Info

Publication number
DE746969C
DE746969C DEK157860D DEK0157860D DE746969C DE 746969 C DE746969 C DE 746969C DE K157860 D DEK157860 D DE K157860D DE K0157860 D DEK0157860 D DE K0157860D DE 746969 C DE746969 C DE 746969C
Authority
DE
Germany
Prior art keywords
openings
drainage
exhaust air
warm
vehicle engines
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
DEK157860D
Other languages
German (de)
Inventor
Dipl-Ing Alfred Kniffler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dipl-Ing Alfred Kniffler
Original Assignee
Dipl-Ing Alfred Kniffler
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 Dipl-Ing Alfred Kniffler filed Critical Dipl-Ing Alfred Kniffler
Priority to DEK157860D priority Critical patent/DE746969C/en
Application granted granted Critical
Publication of DE746969C publication Critical patent/DE746969C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Fuel Cell (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Description

Vorrichtung zum Entwässern elektrischer <Fahrzeugmotoren Es ist bekannt, das Innere von Elektromotoren durch Öffnungen im Motorgehäuse zu entwässern. -Die elektrischen Antriebsmotoren von Triebfahrzeugen werden bekanntlich in den meisten Fällen durch Durchzuglüftun@g gekehlt. Bei dieser Anordnung (Abb. i) saugt ein auf der Motorwelle befestigtes Lüfterrad a die Kühlluft -durch eine Lufteintrittsöffnung b über die Wicklung und über den Kommutator und drückt die warme Abluft .dann ins Freie. An verschiedeneri tiefen Stellen :des Motorgehäuses sind die Entwässerungsöffnungen angebracht, durch die angesaugte Feuchtiä#keit (Regen, getauter Schnee) abfließen soll. Da nun im Motorgehäuse Unterdruck herrscht, wird durch diese Entwäsiserungsöffnungen unerwünschterweise Luft angesaugt, die wegen der tiefen Lage der Öffnungen stark verschmutzt ist -und deren Schmutz die öffrnungen allmählich verstopft. Im Zusammenwirken mit dem Fahrwind wird außerdem- bei niedrigen Augentemperaturen das ausfließende Wasser zum Gefrieren ge- bracht.' Die Entwässerungsöffnungen werden dann verstopft oder frieren zu, das Wasser kann dann nicht mehr ablaufen, und durch die Feuchtigkeit im Innern .des Motors wird die Isolation der Wicklung zerstört und der Motor beschädigt.Device for draining electrical <vehicle engines It is known to drain the interior of electric motors through openings in the motor housing. -The electric drive motors of traction vehicles are known to be grooved in most cases by through ventilation. With this arrangement (Fig. I), a fan wheel a attached to the motor shaft sucks in the cooling air through an air inlet opening b over the winding and over the commutator and then pushes the warm exhaust air out into the open. The drainage openings are made at various deep points: the motor housing, through which the sucked in moisture (rain, thawed snow) should flow away. Since there is now negative pressure in the motor housing, air is undesirably sucked in through these drainage openings, which is heavily soiled because of the deep position of the openings - and whose dirt gradually clogs the openings. In cooperation with the driving wind is außerdem- the effluent water placed overall at low temperatures for freezing eyes. ' The drainage openings are then blocked or freeze shut, the water can then no longer run off, and the moisture inside the motor destroys the insulation of the winding and damages the motor.

Der Gradanke dieser Erfindung ist nun, die warme Abluft des Motors dazu zu benutzen, um die Entwässerungsöffnungen dauernd offen zu halten.The key aspect of this invention is the warm exhaust air from the engine to be used to keep the drainage openings open at all times.

In der einfachsten Form wird dieser Gedanke, wie in Abb. i gezeigt ist, verwirklicht. -In unmittelbarer Nähe des Luftaustrittes ist an einer tiefen Stelle im Gehäuse c oder Kommutatordeckel d die Entwäss-erungsäffnung e angebracht, deren Mündung von dein warmen Luftstrom bespült wird, so daß sie nicht verstopfen oder zufrieren kann.In its simplest form, this thought is shown as in Fig. I is realized. -In the immediate vicinity of the air outlet is at a deep Place the drainage opening e in the housing c or commutator cover d, the mouth of which is washed by your warm air stream so that they do not clog or freeze over.

Es wurde erwähnt, daß im Motorgehäuse: Unterdruck herrscht. Es, würde--an sich hierbei also Luft aus dem Abluftstrom durch die Entwässerungsöffnung c in das Motorinnere eintreten. Um dies zu vermeiden, kann man (Abb.2) die Entwässerungsöffnung als Düse f ausbilden, aus der tdi@e vorbei@streichende Abluft die Feuchtigkeit herauszieht.It was mentioned that in the motor housing: there is negative pressure. It would - on yourself here i.e. air from the exhaust air flow through the drainage opening c enter the inside of the motor. To avoid this, you can (Fig.2) the drainage opening as a nozzle f, from which tdi @ e passing exhaust air draws the moisture.

Es ist nicht immer möglich, die Entwässerungsöffnung so anzuordnen, ,daß sie in unmittelbarer Nähe des Abl:uftaustritts liegt. Die Form des Motorgehäuses verlangt unter Umständen, daß mehrere Entwässerungsöffnungen dz. an den jeweils tiefsten Stellen des Motors angeordnet werden (Abb. 3). In diesem Fall wird die warme Abluft durch einen Kanal g an den Öffnungen lt vorbeigeführt, um sie vor Verschmutzung und Zufrieren zu schützen.It is not always possible to arrange the drainage opening in such a way that that it is in the immediate vicinity of the exhaust air outlet. The shape of the motor housing may require several drainage openings to be connected to the respective lowest points of the engine (Fig. 3). In this case the warm exhaust air is passed through a duct g past the openings to protect them from contamination and to protect from freezing.

Claims (3)

PATENTANSPRÜCHE: i. Vorrichtung zum Entwässern des Gehäuses elektrischer, mittels hindurchgesaugter Luft gekühlter Fahrzeugmotoren durch Entwässerungsöffnungen, .die unter der Wirkung des im Motorgehäuse herrschenden Unterdruckes stehen, dadurch gekennzeich et, daß die Entwässerungsöffnungen (e) durch die warme Alluft des Motors vor dem Verschmutzen und Zufrieren geschnitzt «-erden. PATENT CLAIMS: i. Device for draining the housing of electrical, Vehicle engines cooled by air sucked through through drainage openings, .which are under the effect of the negative pressure prevailing in the motor housing, thereby gekennzeich et that the drainage openings (e) through the warm all air of the engine carved «-ground before it gets dirty and frozen. 2. Vorrichtung nach Anspruch z, dadurch gekennzeichnet, daß die warme Abluft an der in der Nähe .der Lufta.ustrittsöffnung des Motors liegenden Ent-%vässerungsöffnung (e) unmittelbar vorbeistreicht (Abb. i). 2. Device according to claim z, characterized in that the warm exhaust air at the the drainage opening (e) located directly above the motor (Fig. i). 3. Vorrichtung nach Anspruch i, dadurch gekennzeichnet, daß die Entwässerungsöffnung als Saugdüse (f) ausgebildet ist, die von der mit hoher Geschwindigkeit strömenden warmen Abluft betätigt wird (Abb,. 2). d.. Vorrichtung nach Anspruch i, dadurch gekennzeichnet, daß bei verteilter Anordnung der Entwässerungsöffnungen (la) die warme Abluft durch einen Kanal (g) an den Öffnungen (h) vorbeiströtnt (Abb. 3). Zur Abgrenzung des Anmeldungsgegenstandes vom Stand der Technik ist im Erteilungsverfahren folgende Druckschrift in Betracht gezogen worden: USA.-Patentschrift ...... Nr. 1 385 995.3. Apparatus according to claim i, characterized in that the drainage opening is designed as a suction nozzle (f) which is actuated by the warm exhaust air flowing at high speed (Fig. 2). d .. Device according to claim i, characterized in that with a distributed arrangement of the drainage openings (la) the warm exhaust air flows past the openings (h) through a channel (g) (Fig. 3). To distinguish the subject matter of the application from the state of the art, the following publication was considered in the granting procedure: USA.-Patent ...... No. 1 385 995.
DEK157860D 1940-06-14 1940-06-14 Device for dewatering electric vehicle engines Expired DE746969C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK157860D DE746969C (en) 1940-06-14 1940-06-14 Device for dewatering electric vehicle engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK157860D DE746969C (en) 1940-06-14 1940-06-14 Device for dewatering electric vehicle engines

Publications (1)

Publication Number Publication Date
DE746969C true DE746969C (en) 1944-09-01

Family

ID=7253781

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK157860D Expired DE746969C (en) 1940-06-14 1940-06-14 Device for dewatering electric vehicle engines

Country Status (1)

Country Link
DE (1) DE746969C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4184804A (en) * 1975-10-10 1980-01-22 Nippon Soken, Inc. Rotary electric machine having a cooling fan

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1385995A (en) * 1917-08-07 1921-08-02 Westinghouse Electric & Mfg Co Ventilating apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1385995A (en) * 1917-08-07 1921-08-02 Westinghouse Electric & Mfg Co Ventilating apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4184804A (en) * 1975-10-10 1980-01-22 Nippon Soken, Inc. Rotary electric machine having a cooling fan

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