CN111600356A - Quiescent current circuit control structure of automobile air conditioner controller - Google Patents
Quiescent current circuit control structure of automobile air conditioner controller Download PDFInfo
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- CN111600356A CN111600356A CN202010505206.5A CN202010505206A CN111600356A CN 111600356 A CN111600356 A CN 111600356A CN 202010505206 A CN202010505206 A CN 202010505206A CN 111600356 A CN111600356 A CN 111600356A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
- B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses a quiescent current circuit control structure of an automobile air conditioner controller, which comprises an automobile body storage battery circuit, an automobile body ground circuit and an automobile body ignition circuit, wherein the automobile body storage battery circuit is connected with the automobile body ground circuit in parallel, and the automobile body storage battery circuit is connected with the automobile body ignition circuit. The invention effectively solves the problem that the quiescent current is 0 mA.
Description
Technical Field
The invention relates to the technical field of automobile air conditioner control panels, in particular to a quiescent current circuit control structure of an automobile air conditioner controller.
Background
A vehicle air conditioner controller belongs to a control device of vehicle air conditioning equipment. The automobile air conditioning system is a device for refrigerating, heating, ventilating and purifying air in a carriage, can provide comfortable riding environment for passengers, reduces the fatigue strength of drivers and improves the driving safety. Air conditioners have become one of the indicators for evaluating whether the functions of automobiles are complete.
At present, a storage battery of an automobile air conditioner controller is in a normal power state, namely, the whole power taking mode of the air conditioner controller is arranged at one end of the storage battery, so that the power consumption of the storage battery is increased. When the car was parked at rest, air conditioner controller's quiescent current if too big can cause car storage battery power consumption fast, places when car overlength time is static, and the storage battery is power consumptive rapidly can cause the car storage battery to be in insufficient voltage state, and then causes the car unable start-up, brings the loss for the user.
Through investigation and research, the quiescent current of domestic main stream automobile plants is controlled to be less than or equal to 0.5mA, the quiescent current of joint-venture main stream automobile plants is controlled to be less than or equal to 0.1mA, and how to control the quiescent current of products to be as small as possible is an important direction for workers in the field to aim at research. In addition, the existing automobile air conditioner controller is difficult to realize 0mA quiescent current due to the existence of each corresponding load.
Disclosure of Invention
In view of the above disadvantages of the prior art, an object of the present invention is to provide a quiescent current circuit control structure of an automotive air conditioning controller, which can protect an automotive battery from power shortage when an automobile is parked for a long time, and prevent the vehicle from being not started, thereby solving the problem of power shortage of the automotive battery caused by the consumption of the automotive quiescent current, and solving the problem that the quiescent current is hard to be 0 mA.
In order to solve the technical problems, the invention adopts the following technical scheme:
a quiescent current circuit control structure of an automobile air conditioner controller comprises an automobile body storage battery circuit, an automobile body ground circuit and an automobile body ignition circuit, wherein the automobile body storage battery circuit is connected with the automobile body ground circuit in parallel, and the automobile body storage battery circuit is connected with the automobile body ignition circuit.
Preferably, in the static current circuit control structure of the vehicle air conditioner controller, the vehicle body storage battery circuit includes a first resistor R1 and a first coil L1 connected in parallel, the first coil L1 is connected in parallel with a second coil L2 of a vehicle body ground circuit, the first resistor R1 is further connected in series with a first rectifying diode D1 and a MOS transistor Q1, a first transient suppression diode ZD1 and a first capacitor C1 are connected in parallel at two ends of the first rectifying diode D1, the first capacitor C1 is connected in parallel with a second capacitor C2 and then connected to the controller panel ground, a third resistor R3 is further connected between the first rectifying diode D1 and the MOS transistor Q1, the two ends of the third resistor R3 are respectively connected with a gate G and a source S of the MOS transistor Q1, the gate G of the MOS transistor Q1 is connected to the vehicle body ignition circuit, the drain D of the MOS transistor Q1 is connected to an input terminal of the U1, and the output terminal of the VCC voltage regulator U1 is connected to the power supply voltage, a third capacitor C3 and a fourth capacitor C4 which are connected in parallel are arranged between the drain D of the MOS transistor Q1 and the input end of the voltage stabilizer U1, a fifth capacitor C5 and a sixth capacitor C6 which are connected in parallel are arranged between the output end of the voltage stabilizer U1 and the power supply voltage VCC, the third capacitor C3 and the fourth capacitor C4 are connected in parallel and then connected to the controller panel ground end of the voltage stabilizer U1, and the fifth capacitor C5 and the sixth capacitor C6 are connected in parallel and then also connected to the controller panel ground end of the voltage stabilizer U1.
Preferably, in the static current circuit control structure of the vehicle air conditioner controller, the vehicle body ground circuit includes a second resistor R2 and a second coil L2 connected in parallel, the second coil L2 and the second resistor R2 are connected in parallel and then connected to the controller panel ground, and the second coil L2 is connected in parallel to the first coil L1 in the vehicle body battery circuit.
Preferably, in the quiescent current circuit control structure of the vehicle air conditioner controller, the vehicle body ignition circuit includes a second transient suppression diode ZD2 and a second rectifier diode D2 connected in parallel, the other end of the second transient suppression diode ZD2 is connected to the controller panel ground, the other end of the second rectifier diode D2 is connected in series with a fifth resistor R5, a zener diode ZD3, a first switch diode D3 and a transistor Q2, the switch diode D3 is connected to the base B of a transistor Q2, the collector C of the transistor Q2 is connected to the gate G of the MOS transistor Q1 of the vehicle body storage battery circuit after being connected to a fourth resistor R4, the emitter E of the transistor Q2 is connected to the controller panel ground, a seventh capacitor C7 and a seventh resistor R7 connected in parallel are provided between the switch diode D3 and the transistor Q2, the seventh capacitor C7 and the seventh resistor R7 are connected in parallel and then connected to the controller panel ground, a second switching diode D4 is further disposed between the switching diode D3 and the seventh capacitor C7, and a sixth resistor R6 is connected in series to the second switching diode D4.
Compared with the prior art, the quiescent current circuit control structure of the automobile air conditioner controller comprises an automobile body storage battery circuit, an automobile body ground circuit and an automobile body ignition circuit, wherein the automobile body storage battery circuit is connected with the automobile body ground circuit in parallel, and the automobile body storage battery circuit is connected with the automobile body ignition circuit. The invention effectively solves the problem that the quiescent current is 0 mA.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1: the embodiment of the invention provides a static current circuit control structure schematic diagram of an automobile air conditioner controller;
FIG. 2: the embodiment of the invention provides a working state schematic diagram of a quiescent current circuit control structure of an automobile air conditioner controller.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiments of the present invention will be described in further detail with reference to the drawings attached hereto.
As shown in fig. 1, the quiescent current circuit control structure of the automotive air conditioning controller provided by the invention comprises a vehicle body storage battery circuit 11, a vehicle body ground circuit 12 and a vehicle body ignition circuit 13, wherein the vehicle body storage battery circuit 11 is connected with the vehicle body ground circuit 12 in parallel, and the vehicle body storage battery circuit 11 is connected with the vehicle body ignition circuit 13.
Preferably, the vehicle body storage battery circuit 11 according to the present invention includes a first resistor R1 and a first coil L1 connected in parallel, the first coil L1 is connected in parallel with a second coil L2 of the vehicle body ground circuit 12, the first resistor R1 is further connected in series with a first rectifying diode D1 and a MOS transistor Q1, a first transient suppression diode ZD1 and a first capacitor C1 are connected in parallel to both ends of the first rectifying diode D1, the first capacitor C1 is connected in parallel with a second capacitor C2 and then connected to the controller panel ground, a third resistor R3 is connected between the first rectifying diode D1 and the MOS transistor Q1, the third resistor R3 is connected at both ends thereof to the gate G and the source S of the MOS transistor Q1, the gate G of the MOS transistor Q1 is connected to the vehicle body ignition circuit 13, the drain D of the MOS transistor Q1 is connected to the input terminal of the U1, the output terminal of the U1 is connected to the VCC voltage supply voltage regulator, and the drain terminal of the MOS transistor Q1 is connected to the drain terminal 36 1 of the fourth capacitor C4, a fifth capacitor C5 and a sixth capacitor C6 which are connected in parallel are arranged between the output end of the voltage stabilizer U1 and the power supply voltage VCC, the third capacitor C3 and the fourth capacitor C4 are connected in parallel and then connected to the controller panel ground end of the voltage stabilizer U1, and the fifth capacitor C5 and the sixth capacitor C6 are connected in parallel and then also connected to the controller panel ground end of the voltage stabilizer U1.
Preferably, the vehicle body ground circuit 12 of the present invention includes a second resistor R2 and a second coil L2 connected in parallel, the second coil L2 and the second resistor R2 are connected in parallel and then connected to the controller panel, and the second coil L2 is connected in parallel to the first coil L1 in the vehicle body battery circuit 11.
Preferably, the vehicle body ignition circuit 13 according to the present invention includes a second transient suppression diode ZD2 and a second rectifier diode D2 connected in parallel, the other end of the second transient suppression diode ZD2 is connected to the controller panel ground, the other end of the second rectifier diode D2 is connected in series with a fifth resistor R5, a zener diode ZD3, a first switch diode D3 and a transistor Q2, the switch diode D3 is connected to the base B of a transistor Q2, the collector C of the transistor Q2 is connected to the fourth resistor R4 and then connected to the gate G of the MOS transistor Q1 of the vehicle body battery circuit 11, the emitter E of the transistor Q2 is connected to the controller panel ground, a seventh capacitor C5 and a seventh resistor R7 connected in parallel are provided between the switch diode D3 and the transistor Q2, the seventh capacitor C7 and the seventh resistor R7 are connected in parallel and then connected to the controller panel ground, a second switch diode D4 is further provided between the first switch diode D3 and the seventh capacitor C5928, the second switch diode D4 is connected in series with a sixth resistor R6.
In a specific implementation, when the vehicle body ignition circuit 13 is turned off, the voltage at the vehicle body ignition end is 0V, and the voltages at the ends of the corresponding second rectifier diode D2, third resistor R3, zener diode ZD3, second switch diode D4, seventh capacitor C7 and fifth resistor R5 are all 0V, which results in that the triode Q2 is in a turned-off state. The starting voltage of a PN junction of a silicon tube of a common NPN triode is about 0.7V, so that the triode cannot work due to the fact that the triode is in a cut-off state. Further, the gate voltage of the gate G of the MOS transistor Q1 connected to the collector C of the transistor Q2 through the fourth resistor R4 is also 0V, and the MOS transistor Q1 is turned off. Accordingly, the voltage of the regulator U1 connected to the drain D of the MOS transistor Q1, and the related circuits such as the third capacitor C3, the fourth capacitor C4, the fifth capacitor C5, and the sixth capacitor C6 are also 0V, and the current is 0A. The rated voltage required by the automobile air conditioner controller is 12V, the current 12V voltage is cut off, namely 0V, and all relevant circuits arranged behind the voltage are not electrified, so that the problem that the quiescent current of the automobile air conditioner controller is 0mA is effectively solved.
The circuit structure of the invention well controls the quiescent current of the automobile air conditioner controller. In the implementation, the rated voltage required by the air conditioner controller is 12V, when the vehicle body ignition circuit 13 is turned off, the voltage of the point at the intersection of the second transient suppression diode ZD2 and the second rectifier diode D2 is 0V, at this time, the voltage of the patch fifth resistor R5, the zener diode ZD3, the first switch diode D3 and the patch seventh resistor R7 is also 0V, the ceramic seventh capacitor C7 on the vehicle body ignition circuit 13 is connected in parallel with the seventh resistor (C7 is 100nF), because the capacitance value of C7 is very small, the existence of discharge can be basically ignored, that is, the voltage is 0V, and further, the base voltage U of the triode Q2 is 0VQ2B0V, emitter voltage UQ2EAnd when the voltage is equal to 0V, the triode is in a cut-off state and does not work. At this time, the point voltage of the circuit voltage going to the gate G of the MOS transistor Q1 is UQ1G0V, Q1 is preferably a P-type MOS transistor, and the point voltage U of the source S of the MOS transistor Q1 Q1S12V (vehicle body battery power), UQ1S＞UQ1G. According toThe working principle of the P-type _ MOS tube shows that U isQ1G、UQ1SThe U can be realized only by pressure difference between the twoQ1S、UQ1DIs turned on and UQ1S＝12V，UQ1GNo voltage difference is generated between 0V and Q1 is in an off state because the source S and the drain D of the MOS transistor Q1 are not turned on. I.e. the voltage U of the drain D of Q1Q1DWhen the voltage is 0V, the voltages of the fourth capacitor C4, the regulator U1, the fifth capacitor C5 and the sixth capacitor C6 of the relevant load are all 0V. Wherein, the voltage regulator U1 is a three-terminal voltage regulator of 12V to 5V.
The embodiment of the invention can be known from the figure, the relevant load circuit gets electricity from +12V and VCC (as an arrow in figure 2), the +12V electricity is the vehicle body storage battery electricity, and particularly after the MOS tube, when the vehicle body ignition circuit is turned on, the 12V electricity is available, and the turn-off is not available, at the moment, the voltage between the vehicle body storage battery electricity and the VCC electricity is 0V, the voltage of the relevant load circuit is also 0V, and the flowing current is 0A. It is known from ohm's law I ═ U/R that when the voltage is 0V, the current is 0A. In this case, the battery is not in a power consumption state, i.e., is in an ideal quiescent current of 0 mA.
In conclusion, the invention solves the problem of the power-lack state of the automobile storage battery caused by the consumption of the automobile quiescent current, protects the storage battery of the automobile from power shortage when the automobile is parked for a long time, and prevents the automobile from not starting.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (4)
1. A quiescent current circuit control structure of an automobile air conditioner controller is characterized by comprising an automobile body storage battery circuit, an automobile body ground circuit and an automobile body ignition circuit, wherein the automobile body storage battery circuit is connected with the automobile body ground circuit in parallel, and the automobile body storage battery circuit is connected with the automobile body ignition circuit.
2. The quiescent current circuit control structure of an automotive air conditioning controller according to claim 1, characterized in that: the vehicle body storage battery circuit comprises a first resistor R1 and a first coil L1 which are connected in parallel, the first coil L1 is connected with a second coil L2 of a vehicle body ground circuit in parallel, the first resistor R1 is further connected with a first rectifying diode D1 and a MOS tube Q1 in series, a first transient suppression diode ZD1 and a first capacitor C1 are connected to two ends of the first rectifying diode D1 in parallel, the first capacitor C1 and a second capacitor C2 are connected in parallel and then connected with a controller panel ground, a third resistor R3 is further connected between the first rectifying diode D1 and the MOS tube Q1, two ends of the third resistor R3 are respectively connected with a grid G and a source S of the MOS tube Q1, a grid G of the MOS tube Q1 is connected with a vehicle body ignition circuit, a drain D of the MOS tube Q1 is connected with an input end of a regulator U1, an output end of the regulator U1 is connected with a supply voltage, a drain D of the MOS tube Q1 and a drain of the regulator U1 are connected with a fourth capacitor C3 in parallel, a fifth capacitor C5 and a sixth capacitor C6 which are connected in parallel are arranged between the output end of the voltage stabilizer U1 and the power supply voltage VCC, the third capacitor C3 and the fourth capacitor C4 are connected in parallel and then connected to the controller panel ground end of the voltage stabilizer U1, and the fifth capacitor C5 and the sixth capacitor C6 are connected in parallel and then also connected to the controller panel ground end of the voltage stabilizer U1.
3. The quiescent current circuit control structure of an automotive air conditioning controller according to claim 2, characterized in that: the vehicle body ground circuit comprises a second resistor R2 and a second coil L2 which are connected in parallel, the second coil L2 and the second resistor R2 are connected in parallel and then connected with the controller panel ground, and the second coil L2 is connected with the first coil L1 in the vehicle body storage battery circuit in parallel.
4. The quiescent current circuit control structure of an automotive air conditioning controller according to claim 3, characterized in that: the vehicle body ignition circuit comprises a second transient suppression diode ZD2 and a second rectifier diode D2 which are connected in parallel, the other end of the second transient suppression diode ZD2 is connected with a controller panel ground, the other end of the second rectifier diode D2 is connected with a fifth resistor R5, a voltage stabilizing diode ZD3, a first switching diode D3 and a triode Q2 in series, the switching diode D3 is connected with a base B of a triode Q2, a collector C of the triode Q2 is connected with a fourth resistor R4 and then connected with a grid G of a MOS tube Q1 of a vehicle body storage battery circuit, an emitter E of a triode Q2 is connected with the controller panel ground, a seventh capacitor C7 and a seventh resistor R7 which are connected in parallel are arranged between the switching diode D3 and the triode Q2, the seventh capacitor C7 and a seventh resistor R7 are connected in parallel and then connected with the controller panel ground, and a second switching diode D4 is also arranged between the switching diode D3 and the seventh capacitor C7, the second switch diode D4 is connected in series with a sixth resistor R6.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010505206.5A CN111600356A (en) | 2020-06-05 | 2020-06-05 | Quiescent current circuit control structure of automobile air conditioner controller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010505206.5A CN111600356A (en) | 2020-06-05 | 2020-06-05 | Quiescent current circuit control structure of automobile air conditioner controller |
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| CN111600356A true CN111600356A (en) | 2020-08-28 |
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| CN202010505206.5A Pending CN111600356A (en) | 2020-06-05 | 2020-06-05 | Quiescent current circuit control structure of automobile air conditioner controller |
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2020
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Patent Citations (6)
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| CN201274461Y (en) * | 2008-08-21 | 2009-07-15 | 延锋伟世通汽车电子有限公司 | Electronic control switch with low static current |
| CN202309202U (en) * | 2011-10-19 | 2012-07-04 | 吉林省启明电子科技股份有限公司 | Power supply circuit of electronic combination instrument of diesel car |
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