CN204492952U - A kind of electric control silicone oil fan control circuit - Google Patents
A kind of electric control silicone oil fan control circuit Download PDFInfo
- Publication number
- CN204492952U CN204492952U CN201520092007.0U CN201520092007U CN204492952U CN 204492952 U CN204492952 U CN 204492952U CN 201520092007 U CN201520092007 U CN 201520092007U CN 204492952 U CN204492952 U CN 204492952U
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- air
- silicone oil
- relay
- start signal
- oil fan
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- 229920002545 silicone oil Polymers 0.000 title claims abstract description 51
- 238000004378 air conditioning Methods 0.000 claims abstract description 82
- 238000006243 chemical reaction Methods 0.000 claims abstract description 51
- 230000009471 action Effects 0.000 claims description 4
- 230000009467 reduction Effects 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004821 Contact adhesive Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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- Air-Conditioning For Vehicles (AREA)
Abstract
The utility model discloses a kind of electric control silicone oil fan control circuit, comprise air-conditioning switch, signal conversion unit, control relay, air-conditioning start signal output loop and electronic control unit; Air-conditioning switch is connected between the positive pole of storage battery and the input end of signal conversion unit, the coil of control relay is connected between the positive pole of storage battery and the output terminal of signal conversion unit, signal conversion unit when input end receives the voltage signal of storage battery through output terminal output low level signal; Air-conditioning start signal output loop is connected with the normally opened contact of control relay, to export air-conditioning start signal when the normally opened contact of control relay closes to electronic control unit.The utility model can export air-conditioning start signal when air-conditioning switch is unlocked to electronic control unit, extremely can meet the setting speed of the proper heat reduction demand of condenser with the rotating speed making electronic control unit can promote electric control silicone oil fan under automobile is in idling operation.
Description
Technical field
The utility model relates to automobile air conditioning technology field, particularly relates to a kind of electric control silicone oil fan circuit for controlling electric control silicone oil fan rotating speed when auto idle speed.
Background technique
Car air conditioner needs to be cooled the high-temperature high-pressure refrigerant steam that air condition compressor is discharged by condenser, and makes it to be condensed into liquid, and refrigeration agent liberated heat in condensation process is taken away by surrounding atmosphere.The condenser of existing large multi-vehicle-type is both at home and abroad installed in before water tank and intercooler, and three forms front-end module, and when auto idle speed opens air-conditioning, condenser is dispelled the heat by engine blower.Engine blower mainly comprises mechanical fan and electric control silicone oil fan at present, the feature of mechanical fan is: the rotating speed of engine blower is consistent with engine speed, and the feature of electric control silicone oil fan is: when engine water temperature reaches thermostat standard-sized sheet temperature, engine blower is with full rotation speed operation, when engine water temperature does not reach thermostat standard-sized sheet temperature, engine blower is with a lower rotation speed operation.Therefore, when motor carries mechanical fan, because engine idle rotational is relatively high, therefore, during auto idle speed, still can ensure condenser proper heat reduction, namely can ensure that car air conditioner normally works; But when the carrying electrically controlled silicon-oil fan of motor, because engine water temperature cannot reach thermostat standard-sized sheet temperature usually when auto idle speed, therefore, engine blower when auto idle speed by with lower rotation speed operation, condenser cannot proper heat reduction, this will cause air-conditioning system pressure to raise, and will therefore cause air condition compressor damage or pressure duct to break, and there is very large potential safety hazard.
Model utility content
The object of embodiment of the present utility model is to provide one that electronic control unit can be made when air-conditioning switch is unlocked and automobile is in idling operation, controls electric control silicone oil fan with the electric control silicone oil fan control circuit of the rotation speed operation of setting.
For achieving the above object, the technical solution adopted in the utility model is: a kind of electric control silicone oil fan control circuit, comprises electronic control unit and electric control silicone oil fan, and described electronic control unit controls described electric control silicone oil fan action by fan driving unit; Described electric control silicone oil fan control circuit also comprises air-conditioning switch, signal conversion unit, control relay and air-conditioning start signal output loop, described air-conditioning switch is connected between the positive pole of storage battery and the input end of described signal conversion unit, the coil of described control relay is connected between the positive pole of described storage battery and the output terminal of described signal conversion unit, and described signal conversion unit is used for when described input end receives the voltage signal of described storage battery through described output terminal output low level signal; Described air-conditioning start signal output loop is connected with the normally opened contact of described control relay, to export air-conditioning start signal when the normally opened contact of described control relay closes to described electronic control unit.
Preferably, described signal conversion unit comprises the first pull-up resistor, NMOS tube and bleeder circuit, described first pull-up resistor and NMOS tube in sequential series be connected to described storage battery positive pole and bonding between, the drain electrode of described NMOS tube is connected as described output terminal one end with the coil of described control relay; Described bleeder circuit is connected between described input end and bonding, and a dividing point of described bleeder circuit is connected with the grid of described NMOS tube.
Preferably, described signal conversion unit comprises driving relay, NMOS tube and bleeder circuit, between the positive pole that the coil of described driving relay and described NMOS tube are connected in series in described storage battery and bonding, described bleeder circuit is connected between described input end and bonding, and a dividing point of described bleeder circuit is connected with the grid of described NMOS tube; The normally opened contact of described driving relay is connected between described output terminal and bonding.
Preferably, described signal conversion unit comprises driving relay, and the coil of described driving relay is connected between described input end and bonding, and the normally opened contact of described driving relay is connected between described output terminal and bonding.
Preferably, described output terminal is connected through the positive pole of the second pull-up resistor with described storage battery.
Preferably, the normally opened contact of described control relay is connected between air-conditioning start signal output terminal and bonding, form described air-conditioning start signal output loop, to make described air-conditioning start signal output loop when the normally opened contact of described control relay closes, through the air-conditioning start signal of described air-conditioning start signal output terminal to described electronic control unit output low level.
Preferably, between the power supply that the normally opened contact of described control relay and the 3rd pull-up resistor are connected in series in described electronic control unit and bonding, form described air-conditioning start signal output loop.
Preferably, described 3rd pull-up resistor is the pull-up resistor being positioned at described electronic control unit inside.
Preferably, between the power supply that the normally opened contact of described control relay and a pull down resistor are connected in series described electronic control unit and bonding, form described air-conditioning start signal output loop, to make described air-conditioning start signal output loop when the normally opened contact of described control relay closes, export the air-conditioning start signal of high level to described electronic control unit.
Preferably, described pull down resistor is the pull down resistor being positioned at described electronic control unit inside.
The beneficial effects of the utility model are: electric control silicone oil fan control circuit of the present utility model can export air-conditioning start signal when air-conditioning switch (A/C switch) is unlocked to electronic control unit (ECU), like this, when just can realize making electronic control unit receive air-conditioning start signal under automobile is in idling operation, electric control silicone oil fan is controlled with the design of the rotational speed of setting, to ensure that the rotating speed of electric control silicone oil fan still can meet the proper heat reduction demand of condenser under automobile is in idling operation by fan driving unit.In addition, electric control silicone oil fan control circuit of the present utility model is by exporting the structure of the low level signal continued to control relay when air-conditioning switch is unlocked, the object exporting air-conditioning start signal when driver opens air-conditioning switch to electronic control unit can be realized, therefore, it is possible to increase electric control silicone oil fan control circuit of the present utility model with minimum fringe cost in original automotive air-conditioning system when without the need to doing any change to original circuit structure of air-conditioner controller.
Accompanying drawing explanation
Fig. 1 shows the frame principle figure of a kind of mode of execution according to electric control silicone oil fan control circuit of the present utility model;
Fig. 2 shows the first enforcement structure of signal conversion unit in Fig. 1;
The second that Fig. 3 shows signal conversion unit in Fig. 1 implements structure;
Fig. 4 shows the third enforcement structure of signal conversion unit in Fig. 1;
Fig. 5 shows Fig. 1 hollow and adjusts the one of start signal output loop to implement structure.
Description of reference numerals:
1-signal conversion unit; 2-air-conditioning start signal output loop;
3-electronic control unit; 4-electric control silicone oil fan;
K-air-conditioning switch; RL1-control relay;
RL2-drives relay; R1-first resistance;
R2-second resistance; R3-first pull-up resistor;
R4-resistance; R5-the 3rd pull-up resistor;
The output terminal of Vout-signal conversion unit; The input end of Vin-signal conversion unit;
Q1-NMOS manages; B-storage battery;
Vcc-power supply; GND-bonding.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.
The utility model cannot meet the problem that condenser proper heat reduction requires in order to the rotating speed solving electric control silicone oil fan under automobile is in idling operation, provide a kind of electric control silicone oil fan control circuit, by this electric control silicone oil fan control circuit, additionally can provide a road air-conditioning start signal for electronic control unit (ECU), when so just can realize making electronic control unit receive air-conditioning start signal under automobile is in idling operation, control electric control silicone oil fan with the design of the rotation speed operation of setting.As shown in Figure 1, electric control silicone oil fan control circuit of the present utility model comprises air-conditioning switch K, signal conversion unit 1, control relay RL1, air-conditioning start signal output loop 2, electronic control unit 3 and electric control silicone oil fan 4, this electronic control unit controls electric control silicone oil fan action by fan driving unit, due to the constituent element that this air-conditioning switch K (i.e. A/C switch) is air-conditioner controller, therefore, signal conversion unit 1 can be integrated in air-conditioner controller together; This air-conditioning switch K is connected between the positive pole of storage battery B and the input end of signal conversion unit 1, to export the voltage signal of storage battery B to the input end of signal conversion unit 1 when air-conditioning switch K is unlocked (being namely closed), at this, the negative pole of storage battery B needs to be connected with the bonding of automobile; The coil of this control relay RL1 is connected between the positive pole of storage battery B and the output terminal of signal conversion unit 1, signal conversion unit is used for when its input end receives the voltage signal of storage battery B through its output terminal output low level signal, this low level signal is 0.0V ~ 0.4V for Transistor-Transistor Logic level, is 0.0V ~ 0.01V for CMOS level; This air-conditioning start signal output loop 2 is connected with the normally opened contact of above-mentioned control relay RL1, to export air-conditioning start signal when the normally opened contact of control relay RL1 closes to electronic control unit 3, like this, when just can realize making electronic control unit 3 receive air-conditioning start signal under automobile is in idling operation, control electric control silicone oil fan with the design of the rotation speed operation of setting.
On the basis of electric control silicone oil fan control circuit of the present utility model, the attainable controlling method of electronic control unit is:
When not receiving air-conditioning start signal, controlling electric control silicone oil fan according to engine water temperature by fan driving unit and rotating; When receiving air-conditioning start signal, if detect that automobile is in idling operation (i.e. the race of engine), then control electric control silicone oil fan with the rotation speed operation of setting, to meet the demand of condenser proper heat reduction by fan driving unit; When receiving air-conditioning start signal, if do not detect that automobile is in idling operation, then still control electric control silicone oil fan according to engine water temperature by fan driving unit and rotate.
As can be seen here, air-conditioning switch K is when being unlocked, except the compressor normally to automotive air-conditioning system exports except air-conditioning start signal, also can export air-conditioning start signal by signal conversion unit 1 of the present utility model, control relay RL1 and air-conditioning start signal output loop 2 to electronic control unit 3, like this, just under automobile is in idling operation, the rotating speed of electric control silicone oil fan is promoted by electronic control unit 3, with the proper heat reduction demand making the rotating speed of electric control silicone oil fan can meet condenser under automobile is in idling operation.In addition, electric control silicone oil fan control circuit of the present utility model is by exporting the structure of the low level signal continued to control relay RL1 when air-conditioning switch K is unlocked, the object exporting air-conditioning start signal when air-conditioning switch is unlocked to electronic control unit 3 can be realized, therefore, it is possible to increase electric control silicone oil fan control circuit of the present utility model with minimum fringe cost in original automotive air-conditioning system when without the need to doing any change to original circuit structure of air-conditioner controller.
Fig. 2 shows the alternative embodiment of one of above-mentioned signal conversion unit 1, in this embodiment, this signal conversion unit 1 comprises the first pull-up resistor R3, NMOS tube Q1 and bleeder circuit, first pull-up resistor R3 and NMOS tube Q1 is in sequential series to be connected between the positive pole B+ of storage battery B and bonding, and the drain electrode of NMOS tube Q1 is connected with one end of the coil of control relay RL1 as the output end vo ut of signal conversion unit 1; Bleeder circuit is connected between the input end Vin of signal conversion unit 1 and bonding, to realize the coupling of the cut-in voltage of NMOS tube Q1, one dividing point of this bleeder circuit is connected with the grid of NMOS tube Q1, to make NMOS tube Q1 conducting when input end Vin receives the voltage signal of storage battery B, and then make output end vo ut output low level signal by the current potential of the drain electrode dragging down NMOS tube Q1; And NMOS tube Q1 is ended when input end Vin does not receive the voltage signal of storage battery B, and then output end vo ut is made to export high level signal by the HR high resistance effect of NMOS tube.This bleeder circuit such as comprises and is connected in series in the first resistance R1 between input end Vin and bonding and the second resistance R2, and the potential point between the first resistance R1 with the second resistance R2 is connected with the grid of NMOS tube Q1 as above-mentioned dividing point.
In this embodiment, also replace above-mentioned bleeder circuit to realize the coupling of the cut-in voltage of NMOS tube Q1 by voltage conversion circuit, this voltage conversion circuit such as can be realized by voltage conversion chip; In addition, also combine by voltage conversion circuit the coupling that the bleeder circuit realized by divider resistance realizes the cut-in voltage of NMOS tube Q1.
Fig. 3 shows the alternative embodiment of another kind of above-mentioned signal conversion unit 1, in this embodiment, this signal conversion unit 1 comprises driving relay R L2, NMOS tube Q1 and bleeder circuit, the coil of relay R L2 and NMOS tube Q1 is driven to be connected in series between the positive pole B+ of storage battery B and bonding, bleeder circuit is connected between the input end Vin of signal conversion unit 1 and bonding, and a dividing point of bleeder circuit is connected with the grid of NMOS tube Q1; The normally opened contact of relay R L2 is driven to be connected between the output end vo ut of signal conversion unit and bonding.The principle of signal conversion of this kind of signal conversion unit 1 is: when input end Vin receives the voltage signal of storage battery B, NMOS tube Q1 conducting, the coil of relay R L2 is driven to obtain electric, drive the normally opened contact adhesive of relay R L2, output end vo ut is because linking together and output low level signal by this normally opened contact with bonding; When input end Vin does not receive the voltage signal of storage battery B, NMOS tube Q1 ends, drive the coil losing electricity of relay R L2, the normally opened contact of relay R L2 is driven to disconnect, output end vo ut suspends, at this, in order to enable output end vo ut reliably export high level signal when input end Vin does not receive the voltage signal of storage battery B, this output end vo ut is connected with the positive pole of storage battery B by the second pull-up resistor (not shown).
Fig. 4 shows the alternative embodiment of another kind of above-mentioned signal conversion unit 1, in this embodiment, this signal conversion unit 1 comprises driving relay R L2, the coil of this driving relay R L2 such as and resistance R4 be connected in series between the input end Vin of signal conversion unit 1 and bonding, drive the normally opened contact of relay R L2 to be connected between the output end vo ut of signal conversion unit 1 and bonding.The principle of signal conversion of this kind of signal conversion unit 1 is: when input end Vin receives the voltage signal of storage battery B, the coil of relay R L2 is driven to obtain electric, drive the normally opened contact adhesive of relay R L2, output end vo ut is because linking together and output low level signal by this normally opened contact with bonding; When input end Vin does not receive the voltage signal of storage battery B, drive the coil losing electricity of relay R L2, the normally opened contact of relay R L2 is driven to disconnect, output end vo ut suspends, at this, in order to enable output end vo ut reliably export high level signal when input end Vin does not receive the voltage signal of storage battery B, this output end vo ut is connected with the positive pole of storage battery B by the second pull-up resistor (not shown).
In electric control silicone oil fan control circuit of the present utility model, the normally opened contact of above-mentioned control relay RL1 can be connected between air-conditioning start signal output terminal and bonding, form above-mentioned air-conditioning start signal output loop 2, to make air-conditioning start signal output loop when the normally opened contact of control relay RL1 closes, through the air-conditioning start signal of air-conditioning start signal output terminal to electronic control unit 3 output low level.At this, in order to ensure that air-conditioning start signal output loop is when the normally opened contact of control relay RL1 disconnects, reliably can export the air-conditioning shutdown signal of high level to electronic control unit 3 through air-conditioning start signal output terminal, as shown in Figure 5, the normally opened contact of control relay RL1 and the 3rd pull-up resistor R5 can be made to be connected in series between the power supply Vcc of electronic control unit 3 and bonding GND, form the pull-up resistor that above-mentioned air-conditioning start signal output loop the 2, three pull-up resistor such as can utilize electronic control unit 3 inside.Due in practical application, power supply Vcc is supplied to the use of electronic control unit 3 internal circuit through the working power input port of electronic control unit, and the grounding ports of electronic control unit is connected with bonding, form current supply circuit, therefore, also can be regarded as the normally opened contact of control relay RL1 and the 3rd pull-up resistor R5 are connected in series between the working power input port of electronic control unit 3 and grounding ports.
In addition, the normally opened contact of above-mentioned control relay RL1 also can and between the pull down resistor power supply that is connected in series in electronic control unit 3 and bonding, potential point between the normally opened contact of this control relay RL1 and pull down resistor is as air-conditioning start signal output terminal, export the air-conditioning start signal of high level to electronic control unit 3 when the normally opened contact of control relay RL1 closes, and when the normally opened contact of control relay RL1 disconnects to the air-conditioning shutdown signal of electronic control unit 3 output low level.This pull down resistor also can utilize the pull down resistor of electronic control unit 3 inside.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually see, what each embodiment stressed is the difference with other embodiments.
Structure of the present utility model, feature and action effect is described in detail above according to graphic shown embodiment; the foregoing is only preferred embodiment of the present utility model; but the utility model does not limit practical range with shown in drawing; every change done according to conception of the present utility model; or be revised as the Equivalent embodiments of equivalent variations; do not exceed yet specification with diagram contain spiritual time, all should in protection domain of the present utility model.
Claims (10)
1. an electric control silicone oil fan control circuit, comprises electronic control unit and electric control silicone oil fan, and described electronic control unit controls described electric control silicone oil fan action by fan driving unit; It is characterized in that, described electric control silicone oil fan control circuit also comprises air-conditioning switch, signal conversion unit, control relay and air-conditioning start signal output loop, described air-conditioning switch is connected between the positive pole of storage battery and the input end of described signal conversion unit, the coil of described control relay is connected between the positive pole of described storage battery and the output terminal of described signal conversion unit, and described signal conversion unit is used for when described input end receives the voltage signal of described storage battery through described output terminal output low level signal; Described air-conditioning start signal output loop is connected with the normally opened contact of described control relay, to export air-conditioning start signal when the normally opened contact of described control relay closes to described electronic control unit.
2. electric control silicone oil fan control circuit according to claim 1, it is characterized in that, described signal conversion unit comprises the first pull-up resistor, NMOS tube and bleeder circuit, described first pull-up resistor and NMOS tube in sequential series be connected to described storage battery positive pole and bonding between, the drain electrode of described NMOS tube is connected as described output terminal one end with the coil of described control relay; Described bleeder circuit is connected between described input end and bonding, and a dividing point of described bleeder circuit is connected with the grid of described NMOS tube.
3. electric control silicone oil fan control circuit according to claim 1, it is characterized in that, described signal conversion unit comprises driving relay, NMOS tube and bleeder circuit, between the positive pole that the coil of described driving relay and described NMOS tube are connected in series in described storage battery and bonding, described bleeder circuit is connected between described input end and bonding, and a dividing point of described bleeder circuit is connected with the grid of described NMOS tube; The normally opened contact of described driving relay is connected between described output terminal and bonding.
4. electric control silicone oil fan control circuit according to claim 1, it is characterized in that, described signal conversion unit comprises driving relay, the coil of described driving relay is connected between described input end and bonding, and the normally opened contact of described driving relay is connected between described output terminal and bonding.
5. the electric control silicone oil fan control circuit according to claim 3 or 4, is characterized in that, described output terminal is connected through the positive pole of the second pull-up resistor with described storage battery.
6. electric control silicone oil fan control circuit according to any one of claim 1 to 4, it is characterized in that, the normally opened contact of described control relay is connected between air-conditioning start signal output terminal and bonding, form described air-conditioning start signal output loop, to make described air-conditioning start signal output loop when the normally opened contact of described control relay closes, through the air-conditioning start signal of described air-conditioning start signal output terminal to described electronic control unit output low level.
7. electric control silicone oil fan control circuit according to claim 6, it is characterized in that, between the power supply that the normally opened contact of described control relay and the 3rd pull-up resistor are connected in series in described electronic control unit and bonding, form described air-conditioning start signal output loop.
8. electric control silicone oil fan control circuit according to claim 7, is characterized in that, described 3rd pull-up resistor is the pull-up resistor being positioned at described electronic control unit inside.
9. electric control silicone oil fan control circuit according to any one of claim 1 to 4, it is characterized in that, between the power supply that the normally opened contact of described control relay and a pull down resistor are connected in series described electronic control unit and bonding, form described air-conditioning start signal output loop, to make described air-conditioning start signal output loop when the normally opened contact of described control relay closes, export the air-conditioning start signal of high level to described electronic control unit.
10. electric control silicone oil fan control circuit according to claim 9, is characterized in that, described pull down resistor is the pull down resistor being positioned at described electronic control unit inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520092007.0U CN204492952U (en) | 2015-02-09 | 2015-02-09 | A kind of electric control silicone oil fan control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520092007.0U CN204492952U (en) | 2015-02-09 | 2015-02-09 | A kind of electric control silicone oil fan control circuit |
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| Publication Number | Publication Date |
|---|---|
| CN204492952U true CN204492952U (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520092007.0U Expired - Fee Related CN204492952U (en) | 2015-02-09 | 2015-02-09 | A kind of electric control silicone oil fan control circuit |
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| CN (1) | CN204492952U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106976379A (en) * | 2017-05-02 | 2017-07-25 | 安徽江淮松芝空调有限公司 | A kind of automobile air conditioner control system |
-
2015
- 2015-02-09 CN CN201520092007.0U patent/CN204492952U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106976379A (en) * | 2017-05-02 | 2017-07-25 | 安徽江淮松芝空调有限公司 | A kind of automobile air conditioner control system |
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| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20190209 |
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| CF01 | Termination of patent right due to non-payment of annual fee |