CN105539066A - Air volume speed regulation circuit for automobile air conditioner - Google Patents
Air volume speed regulation circuit for automobile air conditioner Download PDFInfo
- Publication number
- CN105539066A CN105539066A CN201510999882.1A CN201510999882A CN105539066A CN 105539066 A CN105539066 A CN 105539066A CN 201510999882 A CN201510999882 A CN 201510999882A CN 105539066 A CN105539066 A CN 105539066A
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- Prior art keywords
- oxide
- semiconductor
- metal
- pole
- circuit
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Classifications
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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
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
- B60H1/00828—Ventilators, e.g. speed control
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Semiconductor Integrated Circuits (AREA)
Abstract
The invention discloses an air volume speed regulation circuit for an automobile air conditioner. A G electrode and an S electrode of an MOS transistor are connected with a control circuit. A D electrode of the MOS transistor is connected with an air blower motor. The S electrode collects transient working currents of an air blower loop and is grounded through a current protection circuit. The air volume speed regulation circuit has the advantages that by adding an over-current protection circuit unit of a speed regulation module, the working performance of an air volume module and the protective performance of an air conditioner system are improved, and components of related hardware circuits are also reduced; air volume control signals works stably, and the control requirements of a panel controller are simple and convenient; an additional protection circuit does not need to be used, so that the production cost is lowered.
Description
Technical field
The present invention relates to air conditioning for automobiles, particularly a kind of automobile air-container air quantity speed adjusting module.
Background technology
The wind speed of blast blower regulating control of current auto Air Conditioner, is all the change being regulated current value by metal-oxide-semiconductor, air force is changed.The temperature protection of metal-oxide-semiconductor heating, is mostly realized by Thermal Cutoffs.When metal-oxide-semiconductor operation irregularity cause can not proper heat reduction time; Thermal Cutoffs can experience the thermal change of metal-oxide-semiconductor; when reaching certain limit value; Thermal Cutoffs fuses; cut off the performance loop of metal-oxide-semiconductor, thus protection blowing engine can not to damage and HVAC housing can not thermal deformation or potential fusing risk by stall.
But from the car load air compressor control of air conditioning for automobiles; there is the temporary impact electric current of some exceptions; because the power timeliness of rush of current is short; out of reach metal-oxide-semiconductor protection temperature; so the impact to blowing engine and metal-oxide-semiconductor; cannot available protecting be carried out, and the risk having car load wire fuse to fuse instantaneously, cause whole-vehicle air-conditioner system works to lose efficacy.
Summary of the invention
Technical matters to be solved by this invention realizes a kind of novel automobile air-container air quantity speed adjusting module, adds over-current protecting unit in circuit, for a/c system provides the protection of failure-free performance.
To achieve these goals; the technical solution used in the present invention is: automobile air-container air quantity alignment circuit, metal-oxide-semiconductor G pole and S pole connection control circuit, and described metal-oxide-semiconductor D pole connects blower motor; S pole gathers the transient working electric current in blowing engine loop, through current protecting circuit ground connection.
The resistance R31 ground connection of metal-oxide-semiconductor D pole in circuit overcurrent protection; comparator U1B carries out voltage gain process to resistance R31 and exports; comparator U1C receives U1B and exports; this voltage and VREF (Voltage Reference) are compared; when collection voltage is greater than reference value; then comparator U1C output low level, the control voltage of cut-off metal-oxide-semiconductor G pole.
Described metal-oxide-semiconductor band temperature sensor interface, the work request of Boiler pressure control module is opened or turned off to the temperature of metal-oxide-semiconductor self.
The invention has the advantages that the current foldback circuit unit by increasing speed adjusting module, improve the serviceability of air quantity module and the protective value of a/c system, also save the components and parts of associated hardware circuitry, the control signal working stability of air quantity, the control overflow of panel controller succinctly facilitates; Avoid using extra protective circuit, reduce productive costs.
Accompanying drawing explanation
Below the content that width accompanying drawing every in specification sheets of the present invention is expressed is briefly described:
Fig. 1 is automobile air-container air quantity alignment circuit schematic diagram;
Fig. 2 is current protecting circuit schematic diagram in Fig. 1.
Detailed description of the invention
As shown in Figure 1, metal-oxide-semiconductor G pole and S pole connection control circuit, metal-oxide-semiconductor D pole connects blower motor to automobile air-container air quantity alignment circuit, and S pole gathers the transient working electric current in blowing engine loop, through current protecting circuit ground connection.
Boiler pressure control module uses the metal-oxide-semiconductor of band overheat protector, and the type selecting of metal-oxide-semiconductor determines cost of product and work and protective value.Metal-oxide-semiconductor needs select tape temperature sensor interface, opens or turn off the work request of Boiler pressure control module according to the temperature of metal-oxide-semiconductor self.Thus to the excess current of Boiler pressure control module, the overheated protection of over voltage generation.Specifically, temperature sensor (thermally dependent resistor) is connected with metal-oxide-semiconductor incircuit, and when metal-oxide-semiconductor temperature is too high, the resistance value of thermally dependent resistor increases, and reaches the effect of breaking protection circuit.
Added the sensor interface of two metal-oxide-semiconductors by Boiler pressure control module, save the integrated protective circuit of bulk on pcb board.
As shown in Figure 2; R31 is the constantan-made resistances sheet of 5m Ω; gather the transient working electric current in blowing engine loop in metal-oxide-semiconductor S pole, when current transient changes, comparator U1B carries out voltage gain process to constantan-made resistances R31 and exports; after comparator U1C receives comparator U1B output; this voltage and VREF (Voltage Reference) are compared, when collection voltage is greater than reference value, comparator U1C output low level; the control voltage of metal-oxide-semiconductor G pole can be ended, thus reach the effect of great instantaneous current protection.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (3)
1. automobile air-container air quantity alignment circuit, metal-oxide-semiconductor G pole and S pole connection control circuit, is characterized in that: described metal-oxide-semiconductor D pole connects blower motor, and S pole gathers the transient working electric current in blowing engine loop, through current protecting circuit ground connection.
2. automobile air-container air quantity speed adjusting module according to claim 1; it is characterized in that: the resistance R31 ground connection of metal-oxide-semiconductor D pole in circuit overcurrent protection; comparator U1B carries out voltage gain process to resistance R31 and exports; comparator U1C receives U1B and exports; this voltage and VREF (Voltage Reference) are compared; when collection voltage is greater than reference value, then comparator U1C output low level, the control voltage of cut-off metal-oxide-semiconductor G pole.
3. automobile air-container air quantity speed adjusting module according to claim 1 and 2, is characterized in that: described metal-oxide-semiconductor band temperature sensor interface, the work request of Boiler pressure control module is opened or turned off to the temperature of metal-oxide-semiconductor self.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510999882.1A CN105539066A (en) | 2015-12-25 | 2015-12-25 | Air volume speed regulation circuit for automobile air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510999882.1A CN105539066A (en) | 2015-12-25 | 2015-12-25 | Air volume speed regulation circuit for automobile air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105539066A true CN105539066A (en) | 2016-05-04 |
Family
ID=55818801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510999882.1A Pending CN105539066A (en) | 2015-12-25 | 2015-12-25 | Air volume speed regulation circuit for automobile air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105539066A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109649115A (en) * | 2018-10-29 | 2019-04-19 | 广州亚美信息科技有限公司 | A kind of on-board air conditioner governor control circuit |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030030452A (en) * | 2001-10-11 | 2003-04-18 | 현대자동차주식회사 | Device for fan motor working control in vehicle |
| CN201412377Y (en) * | 2009-05-26 | 2010-02-24 | 广州精益汽车空调有限公司 | Stepless speed regulation module for vehicle air conditioning fan |
| KR20120042564A (en) * | 2010-10-25 | 2012-05-03 | 이호일 | Device for switching blower motor for vehicles |
| CN103089683A (en) * | 2013-02-22 | 2013-05-08 | 四川泛华电器有限责任公司 | Stepless speed regulation system of automobile air condition air blower |
| CN203102042U (en) * | 2012-12-17 | 2013-07-31 | 芜湖博耐尔汽车电气系统有限公司 | Overheating protection circuit of automobile air-conditioning air quantity control module |
| CN103738139A (en) * | 2013-12-21 | 2014-04-23 | 博耐尔汽车电气系统有限公司 | Automotive air conditioning air volume control system for overvoltage protection |
| CN204794027U (en) * | 2015-07-13 | 2015-11-18 | 东莞市德尔能新能源股份有限公司 | Direct current has afterflow protection circuit of brush motor |
-
2015
- 2015-12-25 CN CN201510999882.1A patent/CN105539066A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030030452A (en) * | 2001-10-11 | 2003-04-18 | 현대자동차주식회사 | Device for fan motor working control in vehicle |
| CN201412377Y (en) * | 2009-05-26 | 2010-02-24 | 广州精益汽车空调有限公司 | Stepless speed regulation module for vehicle air conditioning fan |
| KR20120042564A (en) * | 2010-10-25 | 2012-05-03 | 이호일 | Device for switching blower motor for vehicles |
| CN203102042U (en) * | 2012-12-17 | 2013-07-31 | 芜湖博耐尔汽车电气系统有限公司 | Overheating protection circuit of automobile air-conditioning air quantity control module |
| CN103089683A (en) * | 2013-02-22 | 2013-05-08 | 四川泛华电器有限责任公司 | Stepless speed regulation system of automobile air condition air blower |
| CN103738139A (en) * | 2013-12-21 | 2014-04-23 | 博耐尔汽车电气系统有限公司 | Automotive air conditioning air volume control system for overvoltage protection |
| CN204794027U (en) * | 2015-07-13 | 2015-11-18 | 东莞市德尔能新能源股份有限公司 | Direct current has afterflow protection circuit of brush motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109649115A (en) * | 2018-10-29 | 2019-04-19 | 广州亚美信息科技有限公司 | A kind of on-board air conditioner governor control circuit |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160504 |
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| RJ01 | Rejection of invention patent application after publication |