CN212313228U - Passenger car fan control circuit - Google Patents
Passenger car fan control circuit Download PDFInfo
- Publication number
- CN212313228U CN212313228U CN202021108318.9U CN202021108318U CN212313228U CN 212313228 U CN212313228 U CN 212313228U CN 202021108318 U CN202021108318 U CN 202021108318U CN 212313228 U CN212313228 U CN 212313228U
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- circuit
- control circuit
- fan
- fan control
- passenger car
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Abstract
The utility model discloses a passenger train fan control circuit, control circuit includes: the starting circuit is connected with the emergency switch; the waveform generating circuit is connected with the starting circuit; the driving circuit is connected with the waveform generating circuit and the conventional passenger car fan control circuit; and the fan is connected with the driving circuit. The utility model discloses form by electronic device founding completely, do not need singlechip and program control, can the manual selection fan gear, the circuit is simple, and security and stability are high. When the control system fails, the driver can press the emergency switch button to enable the fan emergency control circuit to take over fan control, and the default fan works at the highest rotating speed.
Description
Technical Field
The utility model belongs to the circuit control field, concretely relates to passenger train fan control circuit.
Background
The current passenger train field fan emergency control circuit mainly is the switching value signal, and this circuit is simple swift, but output signal is simple, can not adapt to more and more complicated whole car fan control requirement.
The current emergency control system for the fan in the passenger car field is integrated in a fan control system and is designed and developed based on a single chip microcomputer, although an output signal is adjustable, a circuit is complex, and high requirements are placed on the safety and the stability of the fan control system. When the fan control system breaks down, the emergency control function is invalid, so that the fan stops working, and hidden danger exists in vehicle operation.
Disclosure of Invention
Problem to exist among the prior art, the utility model provides a passenger train fan control circuit, the utility model discloses a partial embodiment is found by electron device completely and is formed, do not need singlechip and program control, can manually select the fan gear, the circuit is simple, security and stability are high, under the condition of control system trouble, the driver can press emergency switch button, let fan emergency control circuit take over fan control, the acquiescence fan carries out work with the highest rotational speed, if the customer has the control demand to the rotational speed, can elect a wind speed regulating switch, through this regulating switch, the driver can adjust the rotational speed of fan, thereby obtain better energy-conserving effect.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a passenger vehicle fan control circuit, the control circuit comprising: the starting circuit is connected with the emergency switch; the waveform generating circuit is connected with the starting circuit; the driving circuit is connected with the waveform generating circuit and the conventional passenger car fan control circuit; and
and the fan is connected with the driving circuit.
Preferably, the control circuit includes: and the self-locking circuit is connected with the conventional passenger car fan control circuit.
Preferably, the conventional passenger car fan control circuit includes: preferably, the control circuit includes: a duty cycle adjusting circuit connected to the waveform generating circuit; and
and the wind speed regulating switch is connected with the duty ratio regulating circuit.
Preferably, the core chip of the waveform generation circuit is TL 494.
Preferably, the DC-DC switching power supply is MPS 4560.
Preferably, the single chip microcomputer is STM 32.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the circuit is completely constructed by hardware, is simple, has good stability and strong adaptability, and is compatible with 24V and 12V voltages;
2. the operation is simple and can be finished by one key;
3. the power consumption is low, and the conversion efficiency is high;
4. the self-locking function is realized, and the safety is high;
the rotating speed of the (optional) fan is controllable, so that energy can be saved more effectively.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1, the present embodiment provides a passenger car fan control circuit, which includes: the starting circuit 1 is connected with the emergency switch 2; the waveform generating circuit 3, the waveform generating circuit 3 is connected with starting circuit 1; the driving circuit 4 is connected with the waveform generating circuit 3, and the driving circuit 4 is connected with the conventional passenger car fan control circuit 5; and
the fan 6, the fan 6 is connected with the drive circuit 4. The starting circuit is a power switch circuit with an MOS tube as a core. The driving circuit is a power driving circuit with a triode as a core.
The control circuit includes: and the self-locking circuit 7 is connected with the conventional passenger car fan control circuit 5. The self-locking circuit is controlled by a self-locking power supply EN which takes a triode as a core.
The conventional passenger car fan control circuit 5 includes: the control circuit includes: the duty ratio adjusting circuit 8, the duty ratio adjusting circuit 8 is connected with the waveform generating circuit 3; and
and the wind speed regulating switch 9 are connected with the duty ratio regulating circuit 8.
The core chip of the waveform generation circuit 3 is TL 494.
The DC-DC switching power supply 52 is MPS 4560.
The singlechip 53 is STM 32.
A passenger car fan control circuit comprises any one of the passenger car fan control circuits.
When the conventional passenger car fan control system fails, a driver can press the emergency switch key, and the emergency control system is started through the starting circuit and the power supply of the MCU control system is closed to prevent misoperation. The circuit has high sensitivity and a self-locking function, and only one of an emergency control system and a conventional control system is ensured to be in a working state.
The waveform generating circuit is a PWM waveform generating circuit with adjustable output duty ratio and adjustable frequency. The generating circuit has low requirement on a power supply, low power consumption, applicability to 12V and 24V power supply systems, simple circuit, high safety, high stability of an internal feedback circuit and strong anti-interference capability.
The fan driving circuit receives the PWM signal, then performs power amplification and drives the fan to work, has high reliability and high efficiency, and simultaneously comprises an anti-reverse and follow current protection circuit, protects equipment to the maximum extent, and has high safety.
If the customer has a control demand for the rotating speed, a wind speed regulating switch can be selected, and the driver can regulate the rotating speed of the fan through the regulating switch, so that a better energy-saving effect is obtained. The adjusting mode is simple and reliable.
Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that modifications or improvements based on the disclosure of the present invention can be made without departing from the spirit and scope of the present invention, and these modifications and improvements are within the spirit and scope of the present invention.
Claims (7)
1. A passenger vehicle fan control circuit, the control circuit comprising:
the starting circuit (1), the starting circuit (1) is connected with the emergency switch (2);
the waveform generation circuit (3), the waveform generation circuit (3) is connected with the starting circuit (1);
the drive circuit (4), the said drive circuit (4) is connected with said waveform generating circuit (3), the said drive circuit (4) is connected with control circuit of the conventional passenger train fan (5); and
a fan (6), the fan (6) being connected to the drive circuit (4).
2. The passenger vehicle fan control circuit of claim 1, wherein the control circuit comprises:
and the self-locking circuit (7), and the self-locking circuit (7) is connected with the conventional passenger car fan control circuit (5).
3. A passenger car fan control circuit as claimed in claim 2, wherein the conventional passenger car fan control circuit (5) comprises:
a 24v power supply (51);
a DC-DC switching power supply (52), wherein the DC-DC switching power supply (52) is connected with the 24v power supply (51) and the self-locking circuit (7); and
and the single chip microcomputer (53) is connected with the DC-DC switching power supply (52).
4. The passenger vehicle fan control circuit of claim 1, wherein the control circuit comprises:
a duty cycle adjusting circuit (8), wherein the duty cycle adjusting circuit (8) is connected with the waveform generating circuit (3); and
and the wind speed adjusting switch (9), and the wind speed adjusting switch (9) is connected with the duty ratio adjusting circuit (8).
5. A passenger car fan control circuit according to claim 1, wherein the core chip of the waveform generation circuit (3) is TL 494.
6. A passenger car fan control circuit as claimed in claim 3, wherein the DC-DC switching power supply (52) is MPS 4560.
7. A passenger car fan control circuit as claimed in claim 3, wherein the single-chip microcomputer (53) is STM 32.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021108318.9U CN212313228U (en) | 2020-06-16 | 2020-06-16 | Passenger car fan control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021108318.9U CN212313228U (en) | 2020-06-16 | 2020-06-16 | Passenger car fan control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212313228U true CN212313228U (en) | 2021-01-08 |
Family
ID=74025865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021108318.9U Active CN212313228U (en) | 2020-06-16 | 2020-06-16 | Passenger car fan control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212313228U (en) |
-
2020
- 2020-06-16 CN CN202021108318.9U patent/CN212313228U/en active Active
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