阅读说明：本技术 一种自动复位动力模式开关 (Automatic reset power mode switch ) 是由 戈兆生 丁玉蓉 陈磊 魏华文 于 2020-08-04 设计创作，主要内容包括：一种自动复位动力模式开关,其特征是它包括壳体(1)、开关帽(2)、线路板(3)和插件座(4),所述的开关帽(2)内安装有卡爪(5),卡爪(5)插入壳体(1)的插槽(6)中并能在插槽中移动,线路板(3)卡装在壳体内的安装平台(8)上,线路板(3)上设有点动开关(9)和背光灯(10),插件座(4)从壳体(1)的下部插入壳体(1)中并通过插件座(4)上的弹性扣爪(11)插入壳体上的扣孔(12)中实现连接定位,插件座(4)中安装有分别连接电源正板、负极和ECU信号的三块电极板(13)。本发明结构简单,安装、使用方便。(The utility model provides an automatic reset power mode switch, characterized by it includes casing (1), switch cap (2), circuit board (3) and plug-in components seat (4), switch cap (2) in install jack catch (5), jack catch (5) insert slot (6) of casing (1) and can move in the slot, circuit board (3) clamp is on mounting platform (8) in the casing, be equipped with on circuit board (3) and click switch (9) and backlight (10), plug-in components seat (4) insert casing (1) from the lower part of casing (1) and insert through elasticity on plug-in components seat (4) in buckle hole (12) on the casing and realize the connection location, install three electrode pads (13) of connecting power positive plate, negative pole and ECU signal respectively in plug-in components seat (4). The invention has simple structure and convenient installation and use.)

1. An automatic reset power mode switch is characterized by comprising a shell (1), a switch cap (2), a circuit board (3) and a plug-in seat (4), wherein a clamping jaw (5) is installed in the switch cap (2), the clamping jaw (5) is inserted into a slot (6) of the shell (1) and can move in the slot, a stopping step is arranged at the insertion end of the clamping jaw (5), and a stopping boss matched with the stopping step is arranged in the slot (6); the switch cap (2) is a light-transmitting material structural member, a gear mark (7) is arranged on the surface of the switch cap, the circuit board (3) is clamped on an installation platform (8) in the shell, a jog switch (9) and a backlight lamp (10) are arranged on the circuit board (3), the jog switch (9) is opposite to the switch cap (2), the switch cap (2) is connected with one end of a pressing spring (17), and the other end of a reset spring (17) is positioned in a spring seat (18) in the shell; the plug-in seat (4) is inserted into the shell (1) from the lower part of the shell (1) and inserted into a buckling hole (12) on the shell through an elastic buckling claw (11) on the plug-in seat (4) to realize connection and positioning, three electrode plates (13) which are respectively connected with a positive plate, a negative electrode and an ECU signal of a power supply are installed in the plug-in seat (4), and one end of each electrode plate penetrates through the installation platform (8) to be electrically connected with a corresponding contact on the circuit board; the automobile shell is characterized in that a circle of positioning boss (14) which is abutted to the surface of an automobile plate (16) is arranged on the shell (1), elastic positioning buckles (15) are symmetrically connected to the lower portion of the positioning boss (14), the elastic positioning buckles (15) abut against the lower surface of the automobile plate (16), and the shell (1) is clamped in a mounting hole in the automobile plate (16) under the action of the positioning boss (14) and the elastic positioning buckles (15).

2. The automatic reset power mode switch as claimed in claim 1, wherein the gear position mark (6) is a letter or a pattern formed on the front or rear surface of the head cap by laser printing, printing or pasting.

3. The self-resetting power mode switch of claim 1, wherein one end of said electrode plate (13) is inserted through said mounting platform (8) and connected to a corresponding contact on said circuit board.

4. The self-resetting power mode switch of claim 1, wherein the normal mode of said jog switch (9) is economy, power, neutral, economy when pressed once, and so on.

5. The automatic reset power mode switch as claimed in claim 1, wherein one end of the positive plate and the negative plate of the power supply of the three electrode plates (13) is connected to the 15V power source of the automobile, the other end is connected to the input pin of the power chip U1 on the circuit board (3), the power chip U1 outputs +5V voltage to supply power to the subsequent circuit, and the capacitor C1, the capacitor C2 and the capacitor C3 connected to the power chip U1 are used for filtering external surge noise and simultaneously storing electric energy so as to continuously supply power to the counting chip U2 within 15 seconds and keep the state of the counting chip constant when the power is suddenly cut off.

6. The automatic reset power mode switch as claimed in claim 1, wherein one end of the inching switch (9) is connected with a power supply, the other end is connected with one end of a resistor R3, the other end of the resistor R3 is connected with the source electrode of a transistor T4, the emitter electrode of the transistor T4 is grounded, the collector electrode of the transistor is connected with a pulse signal input pin 14 of a counting chip U2, the counting chip U2 is connected with three output ends 2, 3 and 4, the three output ends output signals in turn, three LED lamps and three transistors are turned on in turn, the three LED lamps are turned on in turn, and further, a gear mark on a switch cap is illuminated; the three transistors are conducted in turn, three voltage signals of 0.6V, 1V and 0.3V are output respectively, and the three voltage signals are output to an engine ECU (electronic control Unit) after being stabilized by a voltage stabilizing chip U3.

7. The automatic reset power mode switch as claimed in claim 6, wherein when a first transistor T1 of the three transistors is turned on, the power voltage is divided by a resistor R5 and a resistor R6 to output a voltage of 0.6V, when a second transistor T2 is turned on, the power voltage is divided by a resistor R5 and a resistor R7 to output a voltage of 1V, and when a third transistor T3 is turned on, the power voltage is divided by a resistor R5 and a resistor R8 to output a voltage of 0.6V.

8. The self-resetting power mode switch of claim 1, wherein said housing (1) is provided with an anti-misplugging groove (19).

Technical Field

The invention relates to an automobile ECU technology, in particular to a non-mechanical gear type ECU power switch, and specifically relates to an automatic reset power mode switch.

Background

Because the difference in the engine, the change of the external environment and the use habits of the driver can cause the different working conditions of the engine, such as the change of temperature, the difference of air pressure and altitude, the load change of mountainous areas and plain areas, the local oil quality and the habits of the driver, when a vehicle type is sold in a certain area, the vehicle type should be re-matched according to the conditions of the local use habits, the fuel quality, the climatic characteristics, the geographic environment and the like, if the calibration is not proper, one or more phenomena of the conditions of difficult engine starting, unstable idling, unsmooth acceleration, weak power, knocking, carbon deposition and the like can occur, and people know that the control program of the ECU is fixed for a set working condition of the engine, the oil-saving engine is inevitably insufficient in power under the same condition, the engine of the sports car can not be used for towing more people, if the engine is required to work under different working conditions, the working condition range of the ECU or the number of corresponding databases needs to be expanded, which cannot be realized in the original automobile ECU produced in batches. For example, when a person drives an automobile to travel in a city, the driving is slow due to frequent red lights and congestion, when the starting times are more, an economic (medium load) mode is needed when the person needs high power for starting, a no-load (fuel-saving) mode can be adopted when the person travels at a constant speed outside the effect, and when the person needs strong traveling when a heavy load goes up a slope, the problem can be well solved if a power mode selection switch is arranged on the automobile in the power (heavy load) mode.

According to the knowledge of the applicant, most of the existing power mode selection switches are mechanical power mode switches, and the switches are mostly installed by punching holes on an automobile plate and then screwing and fixing the holes with screws, and also installed by screwing the screws after punching holes on the automobile plate and penetrating the punched holes from bottom to top. In addition, the mechanical power mode switch mostly adopts a wave band switch or a printed resistor board form, the output is a resistance signal, and due to the influence of external factors such as overcurrent, temperature, humidity and the like, the resistance value deviation is easily caused, so that the ECU cannot identify the signal. The band switch also has a middle breakpoint, and when the mode is switched, the signal is output suddenly, so that the band switch is easy to be caught by an ECU and give an alarm or make a judgment wrong. The band switch and the printed resistor board have the common disadvantage that the contact type is adopted, so that poor contact can occur, and when the contact is poor, the output signal is wrong, so that the ECU is wrongly set. In addition, the mechanical power mode switch is used for starting the automobile next time or starting the automobile from the gear after the driver selects the gear to stop, if the automobile stops in the idle gear, the automobile is started next time when the automobile stops in the idle gear, oil supply is insufficient, torque is insufficient, starting is failed, and if the automobile stops in the power gear, the automobile is started next time when the automobile stops in the power gear, and oil is wasted in running. The mechanical switch has no backlight mode, and the driver can observe the vehicle only by turning on the light at night, so that the driving is seriously influenced.

Disclosure of Invention

The invention aims to design an automatic reset power mode switch aiming at the problems of inconvenient operation, low reliability, incapability of automatic reset and the like of the conventional mechanical power mode switch.

The technical scheme of the invention is as follows:

an automatic reset power mode switch is characterized by comprising a shell 1, a switch cap 2, a circuit board 3 and a plug-in seat 4, wherein a clamping jaw 5 is installed in the switch cap 2, the clamping jaw 5 is inserted into a slot 6 of the shell 1 and can move in the slot, an insertion end of the clamping jaw 5 is provided with a backstop step, and a backstop boss matched with the backstop step is arranged in the slot 6; the switch cap 2 is a light-transmitting material structural member, the surface of the switch cap is provided with a gear mark 7, the circuit board 3 is clamped on an installation platform 8 in the shell, the circuit board 3 is provided with a jog switch 9 and a backlight 10, the jog switch 9 is opposite to the switch cap 2, the switch cap 2 is connected with one end of a pressing spring 17, the other end of the return spring 17 is positioned in a spring seat 18 in the shell, under the action of the pressing spring, the switch cap 2 and the jog switch 9 are in a non-contact state, the switch cap is pressed once, and the jog switch acts once; the plug-in seat 4 is inserted into the shell 1 from the lower part of the shell 1 and inserted into a buckling hole 12 on the shell through an elastic buckling claw 11 on the plug-in seat 4 to realize connection and positioning, three electrode plates 13 which are respectively connected with a positive plate, a negative electrode and an ECU signal of a power supply are installed in the plug-in seat 4, and one ends of the three electrode plates penetrate through the installation platform 8 to be electrically connected with corresponding contacts on a circuit board; the shell 1 is provided with a circle of positioning bosses 14 which are abutted against the surface of an automobile plate 16, the lower parts of the positioning bosses 14 are symmetrically connected with elastic positioning buckles 15, the elastic positioning buckles 15 are abutted against the lower surface of the automobile plate 16, and the shell 1 is clamped in a mounting hole on the automobile plate 16 under the action of the positioning bosses 14 and the elastic positioning buckles 15.

The gear mark 6 is a character or a pattern, and is formed on the front surface or the back surface of the head cap by laser printing, printing or pasting.

One end of the electrode plate 13 passes through the mounting platform 8 to be connected with the corresponding contact point on the circuit board in an inserting way.

The conventional mode of the inching switch 9 is an economic gear, one time of pressing is a power gear, the other time of pressing is a neutral gear, the other time of pressing is an economic gear, and the steps are repeated.

One end of the positive plate and one end of the negative plate of the power supply of the three electrode plates 13 are connected with a 15V power source of the automobile, the other end of the positive plate and the negative plate of the power supply of the automobile is connected with an input pin of a power chip U1 on the circuit board 3, the power chip U1 outputs +5V voltage to supply power to a subsequent circuit, and a capacitor C1, a capacitor C2 and a capacitor C3 which are connected with the power chip U1 are used for filtering external surge noise and simultaneously store electric quantity so as to continuously supply power for the counting chip U2 within 15 seconds and keep the state of the counting chip unchanged when the power is suddenly cut off.

One end of the inching switch 9 is connected with a power supply, the other end of the inching switch is connected with one end of a resistor R3, the other end of the resistor R3 is connected with a source electrode of a transistor T4, an emitting electrode of the transistor T4 is grounded, a collecting electrode of the transistor is connected with a pulse signal input pin 14 of a counting chip U2, the counting chip U2 is connected with three output ends 2, 3 and 4, the three output ends output signals in turn, three LED lamps and three transistors are turned on in turn, the three LED lamps are turned on in turn, and gear marks on a switch cap are further illuminated; the three transistors are conducted in turn, three voltage signals of 0.6V, 1V and 0.3V are output respectively, and the three voltage signals are output to an engine ECU (electronic control Unit) after being stabilized by a voltage stabilizing chip U3.

When a first transistor T1 of the three transistors is turned on, the power voltage is divided by a resistor R5 and a resistor R6 to output 0.6V voltage, when a second transistor T2 is turned on, the power voltage is divided by a resistor R5 and a resistor R7 to output 1V voltage, and when a third transistor T3 is turned on, the power voltage is divided by a resistor R5 and a resistor R8 to output 0.6V voltage.

The shell 1 is provided with an anti-insertion groove 19.

The invention has the beneficial effects that:

1. the automobile panel is simple in structure and convenient to install and use, and a customer only needs to insert the automobile panel into a preformed hole in an automobile panel during installation.

2. The mechanical power mode switch in the market at present outputs a resistance signal, and the ECU converts the resistance signal into a voltage signal to be identified, and the resistance value is possibly deviated due to the interference of external factors such as overcurrent, ambient temperature, humidity and the like, so that the ECU can not identify the signal.

3. The invention adopts an electronic structure, and the driver can automatically reset to the economic gear after 15 seconds regardless of which gear is flamed out and stopped, thereby preventing the phenomena of failed start or oil waste during driving caused by wrong gear selection of the mechanical power mode switch.

4. The automobile power module switch has a short memory function, and when the automobile is in poor contact due to vibration or other reasons in the driving process, the automobile is powered on again within 15 seconds, and the power module switch returns to the gear before power failure.

5. The invention adopts an electronic contactless type, and avoids the defect of poor contact after the mechanical contact is aged.

6. The invention adopts a backlight mode, thereby avoiding the defect that a mechanical type can not be seen at night without backlight.

Drawings

FIG. 1 is a schematic front view of the mounting structure of the present invention on an automotive panel.

FIG. 2 is a bottom view of the mounting structure of the present invention on an automotive panel.

Fig. 3 is a schematic perspective view of the housing of the present invention. A

Fig. 4 is a perspective view of the switch cap of the present invention.

Fig. 5 is a schematic structural diagram of the wiring board of the present invention.

Fig. 6 is a schematic structural diagram of the socket of the present invention.

Fig. 7 is a schematic view of the assembly structure of the housing and the circuit board of the present invention.

Fig. 8 is a schematic view of the connection structure of the housing and the plug-in seat of the present invention.

Fig. 9 is a schematic view of a pressing spring mounting structure of the present invention.

Fig. 10 is a schematic perspective view of the present invention.

Fig. 11 is an electrical schematic of the present invention.

Detailed Description

The invention is further described below with reference to the figures and examples.

As shown in fig. 1-11.

An automatic reset power mode switch comprises a shell 1 (figure 3), a switch cap 2 (figure 4), a circuit board 3 (5) and a plug-in seat 4 (figure 4), wherein the shell 1 is provided with an anti-insertion error groove 19 (figure 10); a circle of positioning bosses 14 which are abutted against the surface of an automobile plate 16 are arranged on the shell 1, elastic positioning buckles 15 are symmetrically connected to the lower parts of the positioning bosses 14, the elastic positioning buckles 15 are abutted against the lower surface of the automobile plate 16, and the shell 1 is clamped in a mounting hole in the automobile plate 16 under the action of the positioning bosses 14 and the elastic positioning buckles 15, as shown in fig. 1 and 2. The switch cap 2 is internally connected with two clamping jaws 5, the clamping jaws 5 are inserted into a slot 6 of the shell 1 and can move in the slot (the switch cap 2 can move only by overcoming the elastic force of a pressing spring 17 under the action of external force), the insertion end of each clamping jaw 5 is provided with a retaining step, and a retaining boss matched with the retaining step is arranged in the slot 6; the switch cap 2 is a light-transmitting material structural member, the surface of which is provided with a gear mark 7, and the gear mark 6 can be characters (such as economy, power and idle load) or patterns and can be formed on the front surface or the back surface of the switch cap by laser printing, printing or pasting. The circuit board 3 is clamped on a mounting platform 8 in the shell, the inching switch 9 and a backlight 10 (LED lamps, three are connected and mounted on the circuit board 3, the LED lamps correspond to marks of three gears respectively, the LED lamps are lightened to indicate corresponding gears to work), the inching switch 9 is opposite to the switch cap 2, the switch cap 2 is connected with one end of a pressing spring 17, the other end of the resetting spring 17 is positioned in a spring seat 18 in the shell (figure 9), under the action of the pressing spring, the switch cap 2 and the inching switch 9 are in a non-contact state, the switch cap is pressed once, the inching switch acts once, the conventional mode of the inching switch 9 is an economic gear, the pressing is a power gear, the pressing is a neutral gear, the pressing is an economic gear, and the cycle is repeated. (ii) a The plug-in seat 4 is inserted into the shell 1 from the lower part of the shell 1 and inserted into a buckling hole 12 on the shell through an elastic buckling claw 11 on the plug-in seat 4 to realize connection and positioning, as shown in fig. 8, three electrode plates 13 which are respectively connected with a positive plate, a negative electrode and an ECU signal of a power supply are installed in the plug-in seat 4, and one ends of the three electrode plates penetrate through the installation platform 8 to be connected with corresponding contacts on a circuit board in an inserting manner to realize electrical connection; one end of a power positive plate and one end of a power negative plate in the three electrode plates 13 are connected with a 15V power source of the automobile, the other end of the power positive plate and the other end of the power negative plate are connected with an input pin of a power chip U1 on the circuit board 3, the power chip U1 (the model is GM 6155-5) outputs direct current +5V voltage to supply power to a subsequent circuit, and a capacitor C1, a capacitor C2 and a capacitor C3 which are connected with the power chip U1 are used for filtering external surge noise and simultaneously store electric quantity so as to continuously supply power to a counting chip U2 (the model is CD 4017) within 15 seconds and keep the state of the counting chip unchanged when the power is suddenly cut off, as shown in figure 11. One end of a inching switch 9 (K1) is connected with the anode of a 5V power supply, the other end of the inching switch is connected with one end of a resistor R3, the other end of a resistor R3 is connected with the source electrode of a transistor T4, the emitting electrode of the transistor T4 is grounded, the collecting electrode of a transistor T4 is connected with a pulse signal input pin 14 of a counting chip U2, three output ends 2, 3 and 4 of the counting chip U2 are used as output ends, the three output ends 2, 3 and 4 output signals in turn to turn on three LED lamps and three transistors in turn, the three LED lamps are turned on in turn to further illuminate a gear mark on a switch cap; the three transistors are conducted in turn, three voltage signals of 0.6V, 1V and 0.3V are output respectively, and the three voltage signals are output to an engine ECU (electronic control Unit) after being stabilized by a voltage stabilizing chip U3. When a first transistor T1 of the three transistors is turned on, the power voltage is divided by a resistor R5 and a resistor R6 to output 0.6V voltage, when a second transistor T2 is turned on, the power voltage is divided by a resistor R5 and a resistor R7 to output 1V voltage, and when a third transistor T3 is turned on, the power voltage is divided by a resistor R5 and a resistor R8 to output 0.6V voltage.

The bottom of the power mode switch of the invention is provided with a plug-in port, after the power mode switch is in butt joint with an ECU plug-in, the power mode switch is in butt joint with the 5V power supply anode and cathode and the signal end of the ECU, the 5V power supply anode and cathode and the signal on the plug-in are communicated with a circuit board assembled in a shell through a plug-in needle, the default state of power supply is in an economic gear, the output voltage is 0.6V, the economic gear font backlight on a switch cap is lightened (other gear lamps are not lightened), the ECU executes an economic gear instruction, an integrated circuit generates a signal conversion output to be converted into a power gear by pressing the switch cap to touch a lighting switch on a circuit, the switch outputs 1V, the power gear font backlight on the switch cap is lightened (other gear lamps are not lightened), the ECU executes a power gear instruction, the switch cap is pressed again, the switch is converted into a no-load gear, the output voltage is 0.3V, and the no-load, and the ECU executes the no-load gear instruction, presses the switch cap again to return to the economic gear, and circulates in sequence.

The invention adopts a high-tech integrated circuit chip as a core device, is matched with a high-strength durable inching switch, outputs a stable voltage signal and directly identifies an ECU (electronic control Unit), a power mode switch cap, a shell and a plug-in seat are made of PA66 materials, the switch cap is laser-engraved with a gear character pattern and is switched to which gear, a backlight lamp of the corresponding gear is lightened, and the installation schematic diagram is shown in figures 1 and 2.

The parts not involved in the present invention are the same as or can be implemented using the prior art.