CN2317542Y

CN2317542Y - Car combined switch

Info

Publication number: CN2317542Y
Application number: CN 97205639
Authority: CN
Inventors: 吴忠伦; 龚有容; 龚书
Original assignee: ZHENXING CAR ELECTROMECHANICAL DEVELOPMENT Co CHENGDU CITY
Current assignee: ZHENXING CAR ELECTROMECHANICAL DEVELOPMENT Co CHENGDU CITY
Priority date: 1997-12-22
Filing date: 1997-12-22
Publication date: 1999-05-05
Anticipated expiration: 2007-12-22

Abstract

The utility model relates to a car combined switch. N-shaped keys 2 and 8 can be communicated and put into a circuit INT, a power amplification driven circuit 12 is driven to work by a power source 11 to make a relay J be attracted and closed. An assembly of a wiper motor 6 is started to work. When the electric potention of a reset line of the assembly of the wiper motor is from a low electric potention to a high electric potention of the power source, the circuit of a control switch 14 is closed, the power amplification driven circuit 12 is closed, and the relay J is released. The assembly of the motor 6 is rotated unceasingly because of the communication of a reset line LW', and a circuit 13 is charged by the power source 11 at the same time. When the electric potention of the reset line of the assembly of the motor 6 is from the high electric potention to the low electric potention, the circuit 13 discharges electricity through the circuit 14 to shut the circuit 12 unceasingly. When the circuit 13 finishes discharging, the process is repeated. When the N-shaped keys 2 and 8 is cut off the circuit INT, a KB input circuit is switched on, a motor M is started, and a time-delay circuit 15 is charged at the same time. A driving circuit 16 works, the relay J is attracted and closed, and the assembly of the wiper motor 6 works. After the KB input circuit is shut, the work is conducted to the circuit 15, and the discharge is finished.

Description

Automobile combined switch

The utility model is relevant with automobile combined switch, especially with have the gap and scrape water function and water spray to scrape the automobile combined switch of water function relevant.

Existing automobile combined switch has rain brush to keep off soon as the automobile combined switch on the type automobile of Alto (SC7080-3738010 type), keeps off slowly, and retaining catch, but can not realize that water is scraped in the gap and the water spray automatic time delay is scraped water function.

It is a kind of simple in structure, easy to manufacture, with low cost that the purpose of this utility model provides, and diverse in function can realize that water is scraped in the gap and the water spray automatic time delay is scraped the automobile combined switch of water function.

The utility model is achieved in that

The utility model has housing 1, π type key 2 can be communicated with

contact

4,3,3,5, and contact 4 connects the C end of wiper motor assembly 6, contact 3 connects power supply, connect the A end of wiper motor assembly 6, contact 5 connects the D end of motor assembly, the E end ground connection of motor assembly, π type key 2 can be communicated with contact 5 and reset contact 7, π type key 8 is communicated with

contact

9,10 simultaneously and forms input circuit INT, and contact 9 is communicated with power contact 3, and power contact 3 is succeeded the normally opened contact JC of electrical equipment J ₂, power supply 11 promotes 12 work of power amplifier drive circuit, makes the relay J adhesive, makes JC ₂With JC ₀Be communicated with, start 6 work of wiper motor assembly, the current potential of wiper motor assembly reset line Lw ' during to high potential, closes control switch circuit 14 by electronegative potential, and power amplifier drive circuit 12 cuts out, and makes J release, JC ₁With JC ₀Be communicated with, motor assembly 6 is rotated further by reset line Lw ', 11 pairs of circuit of power supply, 13 chargings simultaneously, the current potential of Lw ' is by high potential during to electronegative potential when rain shaving electrical machine stops operating, circuit 13 continues time-delay closing drive circuit 12 by circuit 14 discharges, and relay J still discharges, when circuit 13 discharge offs, contact 7 is connected with power supply 11 again, repeats to begin said process, when π shape key 2,8 disconnect the INT circuit and after input circuit KB connects, directly starter motor M be delay circuit 15 chargings simultaneously, and drive circuit 16 is worked and makes the relay J adhesive, 6 work of wiper motor assembly, promptly close KB behind the water spray, 15 discharges work on circuit 16 by circuit, and wiper motor assembly 6 works on, behind circuit 15 discharge offs, wiper motor assembly 6 stops to scrape water.

The utility model power amplifier drive circuit 12 is by transistor Q ₂Base stage and divider resistance R ₅, R ₆Connect and compose, said control switch circuit 14 has transistor triode Q ₁Collector electrode and resistance R ₅, R ₆Connect triode Q ₁Base stage be connected triode Q with the output of delay circuit 13 ₁Grounded emitter, the motor assembly that said wiper motor assembly 6 is made up of worm and wormwheel, C shape ring with casing insulation is arranged in the worm gear dish, the breach of C shape ring makes to reset usefulness, wiper connects power supply 11 at Lw ' at the volley, Lw ' ground connection after resetting, said delay circuit 13 discharges and recharges network by diode D1 and C1, R to be formed, and said delay circuit 15 is by diode D ₃And C ₂, R discharges and recharges network and forms, and said power amplifier drive circuit 16 is by transistor Q ₃, Q ₄Compound and resistance R 12 constitutes Q ₃Base stage connect delay circuit 15, its emitter meets Q ₄Base stage, Q ₃, Q ₄G end and the Q of collector connecting relay J ₂Collector electrode, the JC of relay ₀ Contact contact point 7, JC ₁The contact meets the B end of wiper motor assembly 6, JC ₂The contact connects power contact 3, and π type key 2,8 can be synchronized with the movement.

Diode D is arranged on the utility model earth connection ₄, the G of relay J, the F end is parallel with diode D ₂

It is together with ground that the utility model K switch B can be connected to motor M, and KB is the spring leaf contact switch.

The utility model is simple in structure, and volume is little, and is easy to manufacture, with low cost.Circuit can be made into printed circuit board (PCB), can make full use of the excess room of original automobile combined switch, the versatility height.Make the windscreen wiper gap, slow shelves, the function of fast shelves realizes respectively on same handle.Can start the water spray motor when lifting and scrape the water delay circuit on handle, water spray finishes, and scrapes hydrodynamic(al) and does 3-5 time and stop automatically, can operate a handle and realize water spray, scrapes two functions of water cleaning, and is easy to operate.

The utility model has taken into full account the design feature of existing minicar, satisfy to greatest extent and improve forward and backward versatility and economy requirement, the function transplanting of high-grade car unit switch on low-grade unit switch, realize the requirement of low-cost superior function, can be used on all miniature visitors, lorry and the low-grade car, to satisfy the requirement that unit switch windscreen wiper gap is scraped water and sprayed water and scrape water function automatically.

Following is accompanying drawing of the present utility model:

Fig. 1 is a structure chart of the present utility model

Fig. 2 is the utility model circuit block diagram

Fig. 3 is circuit theory diagrams of the present utility model.

Following is embodiment of the present utility model:

The utility model is not changing former Alto car unit switch contour structures and car load electric appliance circuits, under the condition of installation form, utilize the inner excess room of former unit switch, the printed board of redesign printed wire, original part and the electronic circuit that increases newly partly are made on the plate, have guaranteed the globality of structural design.In order to have satisfied the consistent of lead-out wire and connector and former vehicle, taked following measure:

1. in order effectively to utilize former unit switch excess room to select for use midget relay to be directly installed in the printed board, avoided the increase of external cabling between relay and the unit switch, guaranteed that unit switch connector and wire harness improve forward and backward consistency, to satisfy unitized requirement.

2. from the new rain brush gap of having designed, the contact position of slow, fast third gear is realized on same handle step by step.

3. prototype unit switch (Alto car unit switch) is being realized water spray and is being scraped on the function of water cleaning, need secondary operation to finish, (water spray is lifted on the handle and is rotated), newly-designed unit switch, startup water spray motor and windscreen wiper are scraped the water delay circuit when the water spray handle is appeared on the stage, water spray finishes, and scrapes the hydrodynamic(al) work and stops automatically for 3～5 times.Handle of the frame person of sailing operation is just realized water spray, scrapes the water cleaning function.

Course of work block diagram illustrations:

1, water is scraped in the gap: INT switch and 12V power connection promote power amplifier drive circuit works, relay J adhesive (JC by 12V ₀With JC ₂Connect).Start rain shaving electrical machine, rain shaving electrical machine makes reset line Lw ' by 0-12V after starting, 12V closes power amplifier drive circuit 12 by control switch, and J is discharged, and power supply is rotated further motor by reset line, 12V charges to delay circuit simultaneously, resets after rain shaving electrical machine circles, and Lw ' is by 12V-0V.Delay circuit discharges by delay switch, continues the time-delay closing drive circuit, and J still discharges, and motor is stall still, after delaying time, i.e. and C ₁Discharge off, input circuit input 12V works again, and water is scraped in beginning again.

2, water spray is scraped water conservancy project and is made process:

After input circuit KB connects, earlier direct starter motor, simultaneously for the wiper control circuit provides 12V, 12V promptly promotes the power amplifier drive circuit works after delay circuit is charged, the J adhesive, wiper begins to scrape water.Promptly close KB behind the water spray, the power amplifier driver works on by the discharge of C2, and wiper continues to scrape water, delay circuit 13 discharge offs, and wiper stops to scrape water, after realizing spraying water, closes KB, and wiper is still scraped water 3-5 time.

The circuit working process:

1, when wiper during in fast or slow shelves work, by the direct energized of π type key, wiper is an operate as normal, and π type OFF position when stopping because J do not move, so still normally reset, and improves that switch is the same works.

2, the gap is scraped water conservancy project and is made process, and when a π type key 2 was connected 5,7 contacts, another key 8 was connected 9,10 contacts simultaneously, and at this moment power supply 12V is by being communicated with 9,10, R13 → R5 → Q ₂Q ₂After injecting base current, saturation conduction makes the J adhesive immediately, and at this moment, power supply 12V is from JC ₁Normally opened contact (this moment is closed) → JC ₀→ Lw → 7 → 5-M motor power is connected, and starts.

After rain shaving electrical machine starts, rotate because motor rotates drive C shape ring, after C shape ring turned over breach, C shape was encircled 12V and Lw ' connection, and at this moment Lw ' is that the position becomes 12V by 0V, and this high level passes through D ₁, R ₁, R ₂To Q ₁The base stage injection current makes Q immediately ₁Saturated, Q ₁The saturated Q that causes ₂End, relay J no current and discharging at this moment, at this moment motor since the effect of C shape ring by Lw '-JC1-JC0 → 7 → 5 → D → M, be rotated further.When motor rotates a week, when arriving rain shaving electrical machine assembly C shape ring breach again, 12V and Lw disconnect, and C shape ring makes Lw ' and ground connection, makes the motor coil short circuit, and the elimination back-emf stops operating simultaneously.Stopping the back time-delay restarts: as described above, when motor rotates, connect with 12V, at this moment 12V → JC ₁→ D ₁→ R ₁→ C ₁, at this moment, the 12V power supply not only makes J discharge, and to C ₁Charging, after motor stopped operating, Lw ' became 0V, no longer to C ₁Charging is because D ₁, C ₁Can not be from R ₁Anti-discharge, and can only cross logical R ₂, Q ₁The discharge of b, the e utmost point, thereby still keep Q1 to be in saturation condition, Q ₂Be in cut-off state, J still discharges, and wiper is no longer scraped water.Capacitor C ₁Continue discharge, work as C ₁Discharge makes Q ₁After base potential is reduced to certain level gradually, Q ₁End.At this moment power supply is again by INT, R ₁₃, R ₅To Q ₂The base stage injection current makes Q ₂Saturation conduction, J adhesive again starts rain shaving electrical machine once more, thereby C ₁Be the gap discharge time and scrape the water time, adjust C ₁Amount of capacity can change blanking time.

3, water spray, automatic time delay is scraped water conservancy project and is made process, when π type key is in OFF, on lift the unit switch handle, KB connects, at this moment KB directly starts the washer motor and begins water spray, also the 12V power supply is passed through D simultaneously ₃, R ₁₁To C ₂Charging, and pass through R ₁₀To Q ₃, Q ₄Multiple tube injects base current, makes Q ₄Saturated, make the J adhesive, wiper begins to scrape water.When on raise one's hand and promptly close KB behind the handle water spray.Because C ₂Charge, KB has D after closing ₃Isolate C ₂Can only pass through R ₁₀And Q ₃, Q ₄The discharge of b, the e utmost point, thereby make Q ₄Continue saturatedly, J continues adhesive, and wiper continues to scrape water.Up to C ₂Behind the discharge off, Q ₃The base stage no current injects Q ₄End, relay J discharges, and wiper resets naturally.C ₂Be discharge time to prolong and scrape the water time, change C ₂Capacity and R ₁₀, R ₁₁Resistance can be adjusted time-delay and scrape the water time.

4, according to using at present producer's situation, washing motor may adopt control positive supply (claim not only control " fire ") or control zero (but also claiming control ground).Therefore, wash the circuit of scraping water polar switching is arranged.

The rain shaving electrical machine assembly: motor shaft is that worm screw drives the rotation of worm gear dish, have in the worm gear dish one with the C type ring of casing insulation, the breach of C type ring is as resetting usefulness, wiper Lw ' at the volley connects power supply, back Lw ' ground connection resets, back electromotive force is eliminated in the motor coil short circuit, and power supply is unsettled inoperative simultaneously.

D ₁For isolating diode in the charge circuit, prevent C ₁By Lw ' discharge, R ₁, C ₁, R ₂, R ₃, R ₄Form and discharge and recharge network.Obtain the certain interval time thus, Q ₁, R ₃Form switching circuit, according to discharging and recharging discharging and recharging the time of network, control Q2 also controls adhesive and the release of J, Q ₂, R ₅, R ₆ Form power amplifier 12 and drive J adhesive and release, R ₇, R ₈Be feedback resistance, increase input impedance, increase circuit stability.Q ₃, Q ₄Compound and R ₁₂Form power amplifier drive circuit 16, make J adhesive and release, D during as water spray ₃, R ₁₁, R ₁₀, R ₉, C ₂Composition discharges and recharges network, and control water spray back rain strip device continues to scrape water time, D ₃Same D ₁Effect is the same.D ₂Be the J fly-wheel diode, protective transistor does not damage because of relay coil of wire back electromotive force.D ₄Be the protection diode, when electric power polarity connects inverse time, circuit is not worked, and circuit is not damaged, and J is a midget relay, starts rain shaving electrical machine.

Among the figure 5, the connection of 7-9,10 contacts finished by two synchronous π type keys, KB is the spring leaf contact switch.Printed circuit board (PCB) 19 is arranged, rain brush slide block 17, locking ball 18 in the housing 1.

Claims

1, automobile combined switch, housing (1) is arranged, π type key (2) can be communicated with contact (4), (3), (3), (5), contact (4) connects the C end of wiper motor assembly (6), contact (3) connects power supply, connect the A end of wiper motor assembly (6), contact (5) connects the D end of motor assembly, the E end ground connection of motor assembly, it is characterized in that π type key (2) can be communicated with contact (5) and reset contact (7), π type key (8) is communicated with contact (9) simultaneously, (10) form input circuit INT, contact (9) is communicated with power contact (3), power contact (3) is succeeded the normally opened contact JC2 of electrical equipment J, power supply (11) promotes power amplifier drive circuit (12) work, make the relay J adhesive, JC2 is communicated with JC0 starts wiper motor assembly (6) work, the current potential of wiper motor assembly reset line Lw ' is by electronegative potential during to high potential, control switch circuit (14) is closed, just power amplifier drive circuit (12) cuts out, J is discharged, JC1 is communicated with JC0, motor assembly (6) is rotated further by reset line Lw ', power supply (11) charges to circuit (13) simultaneously, when rain shaving electrical machine stops operating, the current potential of Lw ' is by high potential during to electronegative potential, circuit (13) is by circuit (14) discharge, continue time-delay closing drive circuit (12), relay J still discharges, when circuit (13) discharge off, contact (7) is connected with power supply (11) again, repeat to begin said process, when π shape key (2), (8) disconnect INT circuit and after input circuit KB connects, directly starter motor M, be delay circuit (15) charging simultaneously, and make drive circuit (16) work and make the relay J adhesive, KB is promptly closed in wiper motor assembly (6) work behind the water spray, discharge works on circuit (16) by circuit (15), wiper motor assembly (6) works on, and behind circuit (15) discharge off, wiper motor assembly (6) stops to scrape water.

2, automobile combined switch according to claim 1 is characterized in that base stage and the divider resistance R of said power amplifier drive circuit (12) by transistor Q2 ₅, R ₆Connect and compose, said control switch circuit (14) has collector electrode and the resistance R of transistor triode Q1 ₅, R ₆Connect triode Q ₁Base stage be connected triode Q with the output of delay circuit (13) ₁Grounded emitter, the motor assembly that said wiper motor assembly (6) is made up of worm and wormwheel, C shape ring with casing insulation is arranged in the worm gear dish, the breach of C shape ring makes to reset usefulness, wiper connects power supply (11) at Lw ' at the volley, Lw ' ground connection after resetting, said delay circuit (13) is by diode D ₁With C ₁, R discharges and recharges network and forms, said delay circuit (15) is by diode D ₃And C ₂, R discharges and recharges network and forms, and said power amplifier drive circuit (16) is by transistor Q ₃, Q ₄Compound and resistance R ₁₂Constitute, the base stage of Q3 connects delay circuit (15), and its emitter meets Q ₄Base stage, Q ₃, Q ₄G end and the Q of collector connecting relay J ₂Collector electrode, the JC of relay ₀Contact contact point (7), JC ₁The contact meets the B end of wiper motor assembly (6), JC ₂The contact connects power contact (3), π type key (2), and (8) can be synchronized with the movement.

3, automobile combined switch according to claim 1 and 2 is characterized in that diode D is arranged on its earth connection ₄, the G of relay J, the F end is parallel with diode D ₂

4, automobile combined switch according to claim 3 is characterized in that K switch B can be connected between motor M and the ground, and KB is the spring leaf contact switch.