CN202866972U - Automotive cooling fan control circuit - Google Patents
Automotive cooling fan control circuit Download PDFInfo
- Publication number
- CN202866972U CN202866972U CN 201220567139 CN201220567139U CN202866972U CN 202866972 U CN202866972 U CN 202866972U CN 201220567139 CN201220567139 CN 201220567139 CN 201220567139 U CN201220567139 U CN 201220567139U CN 202866972 U CN202866972 U CN 202866972U
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- Prior art keywords
- switch
- cooling fan
- coolant temperature
- relay
- air
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- Expired - Fee Related
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Abstract
The utility model relates to an automotive cooling fan control circuit which comprises a storage battery, an ignition switch, an air-conditioning switch, an evaporator temperature switch, a press switch, a medium-pressure switch, an air-conditioning cooling fan high-speed relay, a water temperature switch, a cooling fan motor, an air-conditioning relay, an air-conditioning compressor electromagnetic clutch and a resistor. The resistor is connected with the water temperature switch, the cooling fan motor and the air-conditioning relay. The automotive cooling fan control circuit can control rotation speed of a cooling fan according to water temperature of an engine and an operating condition of an air conditioner, enables the cooling fan to meet requirements of both the engine and the air conditioner, so that the engine and the air conditioner are in an optimal working condition.
Description
Technical field
The utility model relates to a kind of automobile cooling fan control circuit.
Background technique
On automobile, radiator of car engine and air-conditioning condenser are installed together, and the cooling fan of radiator of car engine and air-conditioning condenser shares, and this just requires cooling fan must satisfy the common requirement of the gentle car air conditioner of engine water.Existing cooling fan control circuit can not require to regulate according to the heat radiation of motor and air-conditioning the rotating speed of cooling fan, causes that engine operation efficient is low, less economical, the air conditioner refrigerating hydraulic performance decline, is not suitable with the development of Hyundai Motor technology.
Summary of the invention
For above-mentioned prior art, technical problem to be solved in the utility model is the automobile cooling fan control circuit that provides a kind of co-operation that can make automobile cooling fan can satisfy motor and air-conditioning to require.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of automobile cooling fan control circuit comprises storage battery, ignition switch, air-conditioning switch, thermal switch, pressure switch, Medium voltage switch or circuit breaker, fast-acting relay, the first coolant temperature switch, the second coolant temperature switch, resistance, cooling fan motor, relay, magnetic clutch; The positive pole of described storage battery connects respectively an end of working circuit input end, the first coolant temperature switch and second coolant temperature switch of described fast-acting relay, the working circuit input end of relay; Simultaneously, the positive pole of the described storage battery input end of control circuit of the end that connects described Medium voltage switch or circuit breaker after described ignition switch, air-conditioning switch, thermal switch, the pressure switch, relay of connecting successively; The other end of described Medium voltage switch or circuit breaker connects the input end of the control circuit of described fast-acting relay; The working circuit output terminal of described fast-acting relay connects the power end of described cooling fan motor; The other end of described the first coolant temperature switch is connected and is connected the power end of described cooling fan motor behind the described resistance; The other end of described the second coolant temperature switch connects the power end of described cooling fan motor; The output terminal of the working circuit of described relay connects respectively the power end of described magnetic clutch and the connected node of described the first coolant temperature switch and resistance.
As improvement of the present utility model, described the first coolant temperature switch closure when engine water temperature is higher than 95 ℃, closure when the second coolant temperature switch is higher than 105 ℃ at engine water temperature.
As further improvement of the utility model, described pressure switch is double pressure switch, and its lower limit switching value is 0.2MPa, and upper limit switching value is 3MPa.
Major advantage of the present utility model is to have increased air-conditioning cooling fan fast-acting relay, coolant temperature switch and the coupled resistance that can regulate cooling fan rotation speed at former cooling fan control circuit, reach and to control the rotating speed of cooling fan according to the water temperature of motor and the working state of air-conditioning, satisfy the heat radiation needs of motor and air-conditioning under the different situations, so that motor car engine and air-conditioning are in best working state.Circuit is simple, and it is convenient to realize, reliability is high.
Description of drawings
Fig. 1 is a kind of automobile cooling fan control circuit figure.
Embodiment
Be to reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the utility model, below in conjunction with accompanying drawing embodiment of the present utility model be described in detail.
As described in Figure 1, a kind of automobile cooling fan control circuit comprises storage battery 1, ignition switch 2, air-conditioning switch 3, thermal switch 4, pressure switch 5, Medium voltage switch or circuit breaker 6, fast-acting relay 7, the first coolant temperature switch K1, the second coolant temperature switch K2, resistance 9, cooling fan motor 10, relay 11, magnetic clutch 12.The positive pole of storage battery 1 connects respectively the end of working circuit input end, the first coolant temperature switch K1 and the second coolant temperature switch K2 of fast-acting relay 7, the working circuit input end of relay 11.Simultaneously, the positive pole of storage battery 1 input end of control circuit of an end, relay 11 of ignition switch 2, air-conditioning switch 3, thermal switch 4, pressure switch 5 rear connection Medium voltage switch or circuit breakers 6 of connecting successively.The other end of Medium voltage switch or circuit breaker 6 connects the input end of the control circuit of fast-acting relay 7.The working circuit output terminal of fast-acting relay 7 connects the power end of cooling fan motor 10.The power end of the other end series resistors 9 rear connection cooling fan motors 10 of the first coolant temperature switch K1.The other end of the second coolant temperature switch K2 connects the power end of cooling fan motor 10.The output terminal of the working circuit of relay 11 connects respectively the power end of magnetic clutch 12 and the connected node of the first coolant temperature switch K1 and resistance 9.Wherein, the first coolant temperature switch K1 closure when engine water temperature is higher than 95 ℃, the second coolant temperature switch K2 closure when engine water temperature is higher than 105 ℃; Pressure switch 5 is double pressure switch, and its lower limit switching value is 0.2MPa, and upper limit switching value is 3MPa.
In this above-described embodiment, pressure switch 5, Medium voltage switch or circuit breaker 6 all are installed on the pressure duct of refrigeration system.Pressure switch 5 is closed when system pressure is higher than 0.2MPa and is lower than 3MPa, otherwise pressure switch 5 disconnects, and its effect is to prevent refrigeration system overpressure or excessively low, plays the safety protection effect.Medium voltage switch or circuit breaker 6 is closed when system pressure is higher than 2.2MPa, and switch disconnects when being lower than 2.2MPa.Coolant temperature switch 8 is installed on the engine water tank, and K1 is 95 ℃ of switches, be water temperature switch on when being higher than 95 ℃, and K2 is 105 ℃ of switches, be water temperature switch on when being higher than 105 ℃.Evaporator temperature switch 4 is installed near the vaporizer, and is closed more than 0 ℃, disconnects below 0 ℃, and its effect is that the device surface that avoids evaporating freezes.
When engine water temperature was lower than 95 ℃, air-conditioning switch 3 and disconnects, coolant temperature switch K1, K2 disconnected; Air-conditioning cooling fan fast-acting relay 7, Air Conditioner Relay 11 not adhesives, cooling fan motor 10 is not worked.
When engine water temperature is lower than 95 ℃, ignition switch 2 closures, air-conditioning switch 3 when closed, coolant temperature switch K1, K2 disconnect; The closure if evaporator temperature switch 4, pressure switch 5 satisfy condition is then connected the coil terminals power circuit of Air Conditioner Relay 11, the switch contact adhesive of Air Conditioner Relay 11,12 adhesives of air condition compressor magnetic clutch, compressor operating.If refrigeration system pressure is lower than 2.2MPa, then Medium voltage switch or circuit breaker 6 disconnects, and Air Conditioner Relay 11 is also connected the circuit of cooling fan motor 10, cooling fan rotation speed operation through resistance 9; If refrigeration system pressure is higher than 2.2MPa, Medium voltage switch or circuit breaker 6 closures then, connect the coil terminals power circuit of air-conditioning cooling fan fast-acting relay 7, the switch contact adhesive of air-conditioning cooling fan fast-acting relay 7, power supply is directly connected the circuit of cooling fan motor 10 by air-conditioning cooling fan fast-acting relay 7, the high rotating speed operation of cooling fan.
When engine water temperature is higher than 95 ℃ and when being lower than 105 ℃, air-conditioning switch 3 and disconnecting, coolant temperature switch K1 is closed, K2 disconnects; Power supply is connected the circuit of cooling fan motor 10, cooling fan slow-speed of revolution operation through coolant temperature switch K1, resistance 9.
When engine water temperature is higher than 95 ℃ and be lower than 105 ℃, air-conditioning switch 3 when closed, coolant temperature switch K1 is closed, K2 disconnects; Power supply is connected the circuit of cooling fan motor 10 through coolant temperature switch K1, resistance 9.If refrigeration system pressure is lower than 2.2Mpa, then Medium voltage switch or circuit breaker 6 disconnects, and Air Conditioner Relay 11 is also connected the circuit of cooling fan motor 10 through resistance 9, cooling fan or slow-speed of revolution operation; If refrigeration system pressure is higher than 2.2MPa, Medium voltage switch or circuit breaker 6 closures then, the circuit of cooling fan motor 10 is directly connected in the switch contact adhesive of air-conditioning cooling fan fast-acting relay 7, power supply by air-conditioning cooling fan fast-acting relay 7, the high rotating speed operation of cooling fan.
When engine water temperature was higher than 105 ℃, coolant temperature switch K1 and K2 were closed, no matter air-conditioning switch 3 closed or disconnections, power supply is all directly connected the circuit of cooling fan motor 10 by coolant temperature switch K2, the high rotating speed operation of cooling fan.
The above has done detailed description to mode of execution of the present utility model by reference to the accompanying drawings, but the utility model is not limited to above-mentioned mode of execution, in the ken that those of ordinary skills possess, can also not break away under the prerequisite of the utility model aim and make various variations.
Claims (3)
1. an automobile cooling fan control circuit is characterized in that: comprise storage battery (1), ignition switch (2), air-conditioning switch (3), thermal switch (4), pressure switch (5), Medium voltage switch or circuit breaker (6), fast-acting relay (7), the first coolant temperature switch (K1), the second coolant temperature switch (K2), resistance (9), cooling fan motor (10), relay (11), magnetic clutch (12); The positive pole of described storage battery (1) connects respectively an end of working circuit input end, the first coolant temperature switch (K1) and second coolant temperature switch (K2) of described fast-acting relay (7), the working circuit input end of relay (11); Simultaneously, the positive pole of described storage battery (1) input end of control circuit of the end that connects described Medium voltage switch or circuit breaker (6) after the described ignition switch (2), air-conditioning switch (3), thermal switch (4), pressure switch (5), relay (11) of connecting successively; The other end of described Medium voltage switch or circuit breaker (6) connects the input end of the control circuit of described fast-acting relay (7); The working circuit output terminal of described fast-acting relay (7) connects the power end of described cooling fan motor (10); The other end of described the first coolant temperature switch (K1) is connected and is connected the power end of described cooling fan motor (10) behind the described resistance (9); The other end of described the second coolant temperature switch (K2) connects the power end of described cooling fan motor (10); The output terminal of the working circuit of described relay (11) connects respectively the power end of described magnetic clutch (12) and the connected node of described the first coolant temperature switch (K1) and resistance (9).
2. automobile cooling fan control circuit according to claim 1 is characterized in that, described the first coolant temperature switch (K1) closure when engine water temperature is higher than 95 ℃, the second coolant temperature switch (K2) closure when engine water temperature is higher than 105 ℃.
3. automobile cooling fan control circuit according to claim 1 is characterized in that, described pressure switch (5) is double pressure switch, and its lower limit switching value is 0.2MPa, and upper limit switching value is 3MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220567139 CN202866972U (en) | 2012-10-31 | 2012-10-31 | Automotive cooling fan control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220567139 CN202866972U (en) | 2012-10-31 | 2012-10-31 | Automotive cooling fan control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202866972U true CN202866972U (en) | 2013-04-10 |
Family
ID=48033696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220567139 Expired - Fee Related CN202866972U (en) | 2012-10-31 | 2012-10-31 | Automotive cooling fan control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202866972U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900509A (en) * | 2012-10-31 | 2013-01-30 | 无锡商业职业技术学院 | Automobile cooling fan control circuit |
| CN104500207A (en) * | 2014-12-08 | 2015-04-08 | 广西玉柴机器股份有限公司 | Control method of electromagnetic clutch fan |
-
2012
- 2012-10-31 CN CN 201220567139 patent/CN202866972U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900509A (en) * | 2012-10-31 | 2013-01-30 | 无锡商业职业技术学院 | Automobile cooling fan control circuit |
| CN104500207A (en) * | 2014-12-08 | 2015-04-08 | 广西玉柴机器股份有限公司 | Control method of electromagnetic clutch fan |
| CN104500207B (en) * | 2014-12-08 | 2016-10-26 | 广西玉柴机器股份有限公司 | The control method of electromagnetic clutch fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20141031 |
|
| EXPY | Termination of patent right or utility model |