CN2615357Y

CN2615357Y - Vehicle cool starting preheating device

Info

Publication number: CN2615357Y
Application number: CNU032187858U
Authority: CN
Inventors: 胡建保
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-04-18
Filing date: 2003-04-18
Publication date: 2004-05-12
Anticipated expiration: 2013-04-18

Abstract

The utility model provides an automobile cold-starting preheating device, which is characterized in that the utility model comprises a storage battery power, a heating starting switch, a heat activated switch, a relay and a primary heater air inlet pipe, wherein the positive pole of the power is divided into two ways, one way of the positive pole passes through one end of second pair normally opened contactor KM2, an indicating lamp S and the primary heater air inlet pipe successively, and is electrically connected with the minus pole, the other end of the positive pole is electrically connected with one pole of the starting switch SB and one end of first normally opened contactor KM1 of the relay KM, the other pole of the starting switch SB and the other end of the first normally opened contactor KM1 of the relay KM are electrically connected with a movable contact of the heat activated switch K, a metal plate of the normally closed pole of the heat activated switch K is connected with the positive pole of a power of the relay KM and the negative pole of the power of the relay KM is connected with the negative pole of the storage battery power as well. The automobile cold-starting preheating device of the utility model makes the engine started easily and prolongs service life of the engine.

Description

The cold-starting automobile Preheating unit

Technical field: the utility model belongs to the engine start Preheating unit, and is particularly a kind of about the cold-starting automobile Preheating unit.

Technical background: when being lower than-40 degrees centigrade at temperature, general diesel engine and petrol engine all can't start, even temperature is in the time of 0 degree centigrade, the starting of motor is also very difficult, people need pull out the chock plate handle, and the starting that just begins to try is during as if fail to start, reset after then need waiting for 30 seconds, very waste time and energy.Be engaged in the automobile production manufacturing or had the people of the experience of driving a car all to know, cold starting is to there being very big influence in working life of motor, someone Preliminary Determination, a cold starting, the frictional loss between piston and the steam casing wall is equivalent to the frictional loss of 20 kilometers of cruisings.Obviously, the improvement for automobile cold start is the also problem demanding prompt solution that is worthy of consideration very much in automobile technical field.

Summary of the invention: the purpose of this utility model is a kind of cold-starting automobile Preheating unit of design, so that make motor be easy to start, prolong the operating life of motor.

The purpose of this utility model is achieved in that a kind of cold-starting automobile Preheating unit of design, and it is characterized in that: it is made up of battery power, heating start switch, thermoswitch, relay, air inlet tube of preheater; The positive pole of power supply divides two-way, and one tunnel end through second couple of normally open contact KM2 of relay is electrically connected with power supply negative terminal by tutorial light S, early fuel evaporation device respectively; Another road is electrically connected with the utmost point of enable switch SB, first pair of normally open contact one end of relay K M respectively; First pair of normally open contact KM1 the other end of another utmost point of enable switch SB, relay K M is electrically connected with thermoswitch K moving contact; The normally closed utmost point tinsel of thermoswitch K links to each other with the positive source of relay K M, and the power cathode of relay K M also connects the battery power negative pole.

Described thermoswitch K is a double-metal sheet type temperature thermoswitch.

Described early fuel evaporation device is resistance wire R.

Characteristics of the present utility model are: when outside air temperature is lower than 0 degree centigrade, press heating start switch SB, like this relay K M get electric, the two couples of normally open contact KM1 of KM and KM2 closure.KM2 connects main circuit, and preheater is started working, and tutorial light S is light simultaneously.KM1 is used for guaranteeing relay K M work as self-lock switch.When the air inlet air in tube was heated to T=180 degree centigrade, two that to belong to the chip thermoswitches be automatic disconnection was more, this moment relay K M dead electricity, KM1 and KM2 also disconnect thereupon, preheater quits work, tutorial light goes out, the self-locking of KM is removed simultaneously.If after a period of time, when the air temperature in the suction tude dropped to T=180 degree centigrade, double-metal sheet type thermoswitch K was auto-closing, but the The whole control circuit disconnects, and automobile is working properly at this moment, need not pre-device and proceeds heating work.The utility model makes its temperature reach 180 degrees centigrade owing to be in advance the air in the automotive air intake pipe to be heated by the early fuel evaporation device.So motor is easy to starting, the operating life that has prolonged motor is a volatility of having improved gasoline for petrol engine like this; For diesel engine is to make the temperature in the compression exhaust casing can satisfy the temperature that diesel oil catches fire naturally, thereby has reduced frictional loss between piston and the cylinder wall to a great extent.

The utility model is described in further detail below in conjunction with embodiment's accompanying drawing:

Description of drawings: Fig. 1 is embodiment's a circuit theory schematic representation.

Among the figure: 1, heating start switch SB; 2, double-metal sheet type thermoswitch Km; 3, relay K M; 4, tutorial light S; 5, early fuel evaporation device.

Embodiment: "+B " is the positive pole of automobile storage battery in this circuit, " ⊥ " is the negative pole of storage battery, the circuit order of connection is the anodal two-way that divides of storage battery, one the tunnel is connected to the end of first couple of normally open contact KM1 of relay K M (3), be connected to a utmost point that starts heating start switch SB (1) simultaneously, the other end of normally open contact KM1 then is connected with the normally-closed contact of bimetallic strip thermoswitch KM (2) and another level of enable switch SB.Another road of storage battery positive pole is connected to the end of second couple of normally open contact KM2 of relay K M (3), and the KM2 the other end then is connected to terminal of tutorial light S (4) and early fuel evaporation device (5) respectively, and their second terminal then are connected to the negative pole of storage battery simultaneously.The normally closed utmost point tinsel of bimetallic strip thermoswitch KM (2) links to each other with the positive source of relay K M (3), the utmost point tinsel of often opening of bimetallic strip thermoswitch KM (2) is connected to the storage battery negative pole, the power cathode of relay K M (3) also is connected to storage battery negative pole " ⊥ ", among Fig. 1+B is that working power is just taken from the existing 12V storage battery of automobile self.Heating start switch SB (1), tutorial light S (4), relay K M (3) all concentrate and are fixed in the little operating case, and tutorial light and hot exposure switch are arranged on the operating case panel, and relay is installed in the box.Early fuel evaporation device (5) is made up of resistance wire R and refractory material and lead and is wrapped on the automotive air intake pipe.Bimetallic strip thermoswitch KM (2) is close on the suction tude, and installs near preheater as far as possible.

Claims

1, cold-starting automobile Preheating unit is characterized in that: it is made up of battery power, heating start switch, thermoswitch, relay, air inlet tube of preheater; The positive pole of power supply divides two-way, and one tunnel end through second couple of normally open contact KM2 of relay is electrically connected with power supply negative terminal by tutorial light S, early fuel evaporation device respectively; Another road is electrically connected with the utmost point of enable switch SB, first pair of normally open contact one end of relay K M respectively; First pair of normally open contact KM1 the other end of another utmost point of enable switch SB, relay K M is electrically connected with thermoswitch K moving contact; The normally closed utmost point tinsel of thermoswitch K links to each other with the positive source of relay K M, and the power cathode of relay K M also connects the battery power negative pole.

2, cold-starting automobile Preheating unit according to claim 1 is characterized in that: described thermoswitch K is a double-metal sheet type temperature thermoswitch.

3, cold-starting automobile Preheating unit according to claim 1 is characterized in that: described early fuel evaporation device is resistance wire R.