CN200969320Y

CN200969320Y - Full-automatic vehicle cold air compressor power on-off switch

Info

Publication number: CN200969320Y
Application number: CN 200620003069
Authority: CN
Inventors: 陈德智
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-01-20
Filing date: 2006-01-20
Publication date: 2007-10-31
Anticipated expiration: 2016-01-20

Abstract

An automatic close and open electrifying switch for cold air compressor of automobile consists of a vacuum suction chamber in which a spring and a rubber film with a mandril are arranged there in. A vacuum suction leading pipe is arranged on the top of the vacuum suction chamber. The vacuum suction leading pipe is connected with the intake manifold of the engine and changes with the change of vacuum suction (negative pressure). The film with the mandril is attracted to perform a stretching activity to control the close and open of a switch of which the open and close signal is processed by a group of electronic circuit to control the engagement and disengagement operation of the electromagnetic clutch of the cold air compressor. The automatic close and open electrifying switch of the utility model provides the advantage that when vehicles are driven on a long distance climbing section, the electromagnetic clutch of the cold air compressor is power off. When the idle motion time reaches the prescribed time of the electronic circuit, the power is automatically supplied to make the electromagnetic clutch of the compressor reengage and operate to produce cold air. Thus, the temperature of the carriage is maintained.

Description

Full automatic vehicle refrigerating compressor is disconnected, power-on switch

Technical field

The utility model relates to full-automatic disconnected, the power-on switch of the equipment on a kind of automobile, particularly a kind of refrigerating compressor.

Background technology

There is following shortcoming in the cut-off switch of traditional vehicle refrigerating compressor:

One, all be that the power of the pull of vacuum (negative pressure) of utilizing motor intake manifold changes the control power of compressor and opens and closes, so when the climbing highway section of vehicle ' in long distance, because engine is in higher load condition, pull of vacuum this moment (negative pressure) is the most weak, therefore power supply is cut off automatically, and refrigerating compressor is dallied, the time that can not produce cold air is oversize, cause the temperature in the compartment to rise, make the sense of people's utmost point uncomfortable, must go by a switch with hand by the driver, just can make refrigerating compressor recover the energising running and produce cold air.

Two, when the outage of the electromagnetic clutch of refrigerating compressor separated, the reverse voltage that is produced made the platinum contact of traditional cut-off switch burn easily, caused fault and lost function.

The utility model content

The purpose of this utility model is to provide the full automatic again vehicle refrigerating compressor of a kind of performance sensitive disconnected, power-on switch.

For achieving the above object, the utility model is taked following technical measures:

Full automatic vehicle refrigerating compressor of the present utility model is disconnected, power-on switch, comprise: a pull of vacuum chamber, this pull of vacuum is indoor to be provided with a spring, below spring, be provided with a related push rod of rubber diaphragm, and the top of pull of vacuum chamber is provided with a conduit, the inlet manifold that connects engine is changed by the power of its pull of vacuum (negative pressure), attracts the related push rod of diaphragm to produce telescopic movable.

Other establishes one group of electronic circuit system, wherein be provided with a switch, utilize the keying of this switch of push rod extension and contraction control of pull of vacuum chamber, again its keying signal is transferred to electronic circuit, act on joint running of the electromagnetic clutch of controlling refrigerating compressor and separate idle running through it.

In electronic circuit system of the present utility model, the most special design is the time that reaches former setting when the time of outage, just recovers energising automatically, makes the electromagnetic clutch of refrigerating compressor engage running generation cold air again.

Compared with prior art, the utlity model has following effect:

Because the utility model takes mechanical type to cooperate the Combination Design of electronic circuit, be difficult for fault and for full-automatic, when the climbing highway section of vehicle ' in long distance, power-off time reaches the time of former setting and will recover energising automatically, does not need to go to control with hand again.

Description of drawings

Fig. 1 is that full automatic vehicle refrigerating compressor of the present utility model is disconnected, power-on switch, pull of vacuum cell structure explosion views wherein;

Fig. 2 is that full automatic vehicle refrigerating compressor of the present utility model is disconnected, power-on switch, electronic circuit system structure chart wherein.

Embodiment

Reaching embodiment in conjunction with the accompanying drawings is described in detail as follows architectural feature of the present utility model:

As shown in Figure 1, the embodiment of its expression full-automatic disconnected, power-on switch of the present utility model, pull of vacuum chamber V wherein comprises: go up shell A, a conduit 1 for one, in establish a spring 2,4, one push rods 5 of 3, one diaphragm positioning seats of a rubber diaphragm and diaphragm 3 are combined, a lower casing B, stay an air vent hole 6 at lower casing B, and establish a tip-lever support 7, make push rod 5 can keep the flexible of straight line.

After last shell A and lower casing B press combination with the edge of rubber diaphragm 3, form sealing at an end of spring 2.

With after the inlet manifold of engine is connected, rubber diaphragm 3 related push rods 5, will change along with the power of suction and stretch when the attraction that is subjected to pull of vacuum (negative pressure) because of bearing the tension force of spring 2 with conduit 1.

Other establishes a combined bay 8, fixing pull of vacuum chamber V and electronic circuit switch S 2, utilize the keying of the extension and contraction control switch S 2 of push rod 5, in running car, in the time of acceleration or climbing, be in weak pull of vacuum (negative pressure) state of high load capacity, switch S 2 is subjected to the extruding of push rod 5 and closes outage.At ordinary times in the running car except that quicken or climbing, pull of vacuum (negative pressure) is all more intense, rubber diaphragm 3 related push rods 5 are attracted and are shunk, switch S 2 is not squeezed and all is in the "on" position of unlatching.

As shown in Figure 2, be the embodiment of full-automatic disconnected, power-on switch of the present utility model, electric circuit construction schematic diagram wherein.

The integrated circuit (IC) that adopts integrated transporting discharging is as core component, adjusts output control relay by the time of capacitor charge and discharge, reaches the time of delay to control circuit.

The operation principle of circuit is as follows:

1. when the driver opens cold air, to capacitor C 1 and C2 charging, the 6 pin charging that makes integrated circuit (IC) is near supply voltage via diode D3 for its cathode power supply, when switch S 2 when pressurized is not in opening, the base stage of triode Q1 makes resistance R 5 forward bias and saturation conduction by switch S 2.

2. when switch S 2 in off position the time, triode Q1 loses biasing and is in cut-off state, this moment, capacitor C 2 slowly discharged semifixed resistor VR1 by resistance R 8, when voltage drops to the 5 pin voltages that are lower than integrated circuit (IC), 7 pin of integrated circuit (IC) are exported high level again, make triode Q1 saturation conduction again via resistance R 3.

3. when triode Q1 saturation conduction, relay K 1 adhesive energising, power supply are made it engage running for the electromagnetic clutch E of refrigerating compressor and produce cold air.When triode Q1 ended, relay K 1 disconnected, and stops power supply to electromagnetic clutch E, made its separate idle running.

4. when triode Q1 conducting, D4 is bright for the LED lamp, and the expression electromagnetic clutch engages running.When triode Q1 ended, LED lamp D4 put out, and the expression electromagnetic clutch separates idle running.

5. adjust semifixed resistor VR1 can adjust Q1 by the end of the time of saturation conduction, thereby set the Best Times that recovers energising automatically.

6. voltage stabilizing didoe ZDI provides a reference voltage for 5 pin of integrated circuit (IC), compares by 6 pin with integrated circuit (IC), comes the 7 pin output high-low level of control integrated circuit IC.

7. the reverse voltage that produces when diode D1, D2, D5, D6, D7, D8 are used to prevent electromagnetic clutch E outage separation, the platinum contact of protection relay K1 is not burnt.

8. diode D9, D10 have been buffer actions, allow the key element that circuit can operate as normal.

9. switch S 1 is the diverter switch that fault detects and circuit is straight-through.

Foregoing is used to utilize embodiment that technical characterictic of the present utility model is described, is not to be used to limit protection range of the present utility model, even there is the people to make change slightly on design of the present utility model basis, must belong in the protection range of the present utility model.

Claims

1, disconnected, the power-on switch of a kind of full automatic vehicle refrigerating compressor, comprising: the combination of a pull of vacuum chamber and one group of electronic circuit is characterized in that:

This pull of vacuum is indoor to be provided with a spring, below spring, be provided with a rubber diaphragm, a related push rod, bear the tension force of spring, above the pull of vacuum chamber, be provided with a conduit, connect the inlet manifold of engine, be subjected to the attraction of its pull of vacuum, the related push rod of rubber diaphragm is changed along with the power of pull of vacuum and stretch, utilize the keying of a switch of one group of electronic circuit of extension and contraction control, utilize keying signal to control the running of this group electronic circuit.

2, disconnected, the power-on switch of vehicle refrigerating compressor according to claim 1 is characterized in that this group electronic circuit also comprises integrated circuit (IC), electric capacity (C2), resistance (R8, VR1), triode (Q1) and relay (K1), wherein,

The switch (S2) that power supply is closed via not pressurized conducting and pressurized is connected to electric capacity (C2), resistance (R8, VR1) is connected with electric capacity (C2) when being in pressurized when switch (S2) and closing slowly discharge of electric capacity (C2), the integrated circuit (IC) that links to each other with electric capacity (C2) is connected to triode (Q1) and exports high or low level with the voltage based on electric capacity (C2) to triode (Q1), relay (K1) connects power supply and refrigerating compressor, and triode (Q1) is connected to relay (K1) with adhesive and tripping based on the level control relay (K1) of integrated circuit (IC) output.