CN111664108A - Control device for engine cooling fan - Google Patents

Control device for engine cooling fan Download PDF

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Publication number
CN111664108A
CN111664108A CN201910566714.1A CN201910566714A CN111664108A CN 111664108 A CN111664108 A CN 111664108A CN 201910566714 A CN201910566714 A CN 201910566714A CN 111664108 A CN111664108 A CN 111664108A
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China
Prior art keywords
switch
fan
lamp
frame
cooling fan
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Granted
Application number
CN201910566714.1A
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Chinese (zh)
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CN111664108B (en
Inventor
卞明
姜斌
魏登惠
项达尚
张婧
殷志航
陆海峰
刘文斌
石路
游维华
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Shichuan Jule Innovation Technology Wuhan Co ltd
Jiangsu Jianghuai Power Co ltd
Original Assignee
Shichuan Jule Innovation Technology Wuhan Co ltd
Jiangsu Jianghuai Power Co ltd
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Priority to CN201910566714.1A priority Critical patent/CN111664108B/en
Publication of CN111664108A publication Critical patent/CN111664108A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/14—Safety means against, or active at, failure of coolant-pumps drives, e.g. shutting engine down; Means for indicating functioning of coolant pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"
    • H01H9/161—Indicators for switching condition, e.g. "on" or "off" comprising light emitting elements

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Air Conditioning Control Device (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention relates to the technical field of control devices of automobile engine cooling fans, and discloses a control device of an engine cooling fan, which comprises a fan controller and a control panel, wherein a fan switch is arranged on the control panel, a fan switch indicator lamp is also arranged on the control panel, the fan switch indicator lamp is positioned right above the fan switch and is connected in parallel with one side of the fan switch, a lamp ring is sleeved on the outer surface of the fan switch indicator lamp, an LED lamp strip is attached to the inner ring wall of the lamp ring, the LED lamp strip is electrically connected with the output end of a storage battery through a wire, and the storage battery is arranged on the front side of the control panel; the cooling fan is arranged close to the outer surface of the engine body and connected with the fan controller; the invention provides a control device of an engine cooling fan, which is convenient for a user to simply and quickly switch on or off respectively and is convenient for observing the position of a switch during driving at night.

Description

Control device for engine cooling fan
Technical Field
The invention relates to the technical field of control devices of cooling fans of automobile engines, in particular to a control device of an engine cooling fan.
Background
The cooling fan of the automobile engine is various in types, and as an important tool for heat dissipation, the operation of the cooling fan of the engine is very important.
As a method and an apparatus for controlling an engine cooling fan disclosed in chinese patent publication No. CN103883545B, a control apparatus for an engine cooling fan is disclosed, which includes a fan switch, a fan controller, a temperature switch, and an engine controller.
However, the control device for the engine cooling fan has certain problems in practical use, for example, the switch cannot simply display the on or off state, which is not beneficial for the user to quickly determine, and it is more difficult to determine the on or off state of the switch on the control panel when the vehicle is driving at night.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the control device of the engine cooling fan, which is convenient for a user to simply and quickly switch on or off, and is convenient for the user to observe the switch position during driving at night.
The invention discloses a control device of an engine cooling fan, which comprises a fan controller and a control panel, wherein a fan switch is arranged on the control panel, a fan switch indicator lamp is also arranged on the control panel, the fan switch indicator lamp is positioned right above the fan switch and is connected in parallel to one side of the fan switch, a lamp ring is sleeved on the outer surface of the fan switch indicator lamp, an LED lamp strip is attached to the inner ring wall of the lamp ring, the LED lamp strip is electrically connected with the output end of a storage battery through a wire, and the storage battery is arranged on the front side of the control panel; the cooling fan is arranged close to the outer surface of the engine body and connected with the fan controller.
Preferably, a moisture removing frame is sleeved on the outer surface of the fan switch.
Preferably, the fan switch indicator lamp is a yellow LED lamp.
Preferably, the outer surface of the LED lamp strip is covered with a layer of filter cover, and the middle part of the inner cavity of the lamp ring is provided with an indicating lamp groove matched with the indicating lamp.
Preferably, the fan switch is a square switch.
Preferably, the cooling fan includes a box body, an air outlet is formed in the upper end of the box body, the air outlet is close to the bottom end of the engine body, an ash discharge port is formed in the lower end of the box body, a filter screen is transversely connected in the box body and divides the inner cavity of the box body into an air supply chamber and a filter chamber, the air supply chamber is close to the ash discharge port, the filter chamber is close to the air outlet, a refrigerating sheet set is connected to the inner wall of the filter chamber, a temperature sensor is connected to the inner wall of the filter chamber close to the air outlet, an air feeder is arranged at the side end of the box body close to the air supply chamber, a dust removal device is arranged in the air supply chamber and comprises a driving motor, a rotating screw rod connected with the output end of the driving motor, a rotating nut sleeved on the rotating screw rod, a first, Vertically connect in the connecting plate of rotation nut side with connect in the connecting plate keep away from rotation screw rod end and attached in the filter screen is close to the brush of air supply room end, driving motor connects in the air supply machine end is kept away from to the box, it connects in on the air supply room inner wall through the bearing frame to rotate the screw rod and keep away from the driving motor end, first connecting rod wears to locate in the connecting plate, forced draught blower, driving motor and refrigerating fin group all with fan controller is connected, control panel still installs temperature switch, temperature indicator lamp, strong refrigeration switch and strong refrigeration pilot lamp on, the temperature indicator lamp is located temperature switch directly over, and the temperature indicator lamp connects in parallel in one side of temperature switch, strong refrigeration pilot lamp is located strong refrigeration switch directly over, and strong refrigeration pilot lamp connects in parallel in one side of strong refrigeration switch, the forced cooling switch is connected with the refrigerating sheet group, the outer surface cover of the temperature switch is provided with a damp-proof frame, and the outer surface of the forced cooling switch is sleeved with a large dehumidifying frame.
Preferably, the temperature indicator lamp is a green LED lamp, the forced cooling indicator lamp is a red LED lamp, the temperature switch is a square switch, and the forced cooling switch is a circular switch.
Preferably, the structure of removing damp frame and removing damp frame greatly is the same, remove damp frame and remove damp frame greatly the frame upper and lower all seted up the opening, remove damp frame and remove damp frame greatly on two inner walls fixed mounting have the moisture absorption case, the moisture absorption case is kept away from and has been seted up a plurality of bleeder vent on the surface of frame inner wall, the intussuseption of moisture absorption case is filled with the drier, the surface mounting of bleeder vent has the filter screen.
Preferably, an intelligent inspection device is arranged on the outer surface of the cooling fan, the intelligent inspection device can automatically judge whether the cooling fan is abnormal or not, and if the cooling fan is abnormal, an alarm is given out, wherein the inspection specifically comprises the following steps:
the intelligent inspection device is provided with a sound receiving device, a sound preprocessing device and an abnormity inspection device;
firstly, the sound receiving device acquires the sound of the cooling fan in working for a preset time length, and transmits the sound to the sound preprocessing device;
the sound preprocessing device counts the total frame number P of the sound transmitted by the sound receiving device, obtains the values of a first audio and a second audio of each frame and forms a matrix A, the matrix A is a value of P rows and 2 columns, the matrix A is substituted into a formula (1), interference elimination is carried out, and an elimination matrix B is obtained;
Figure BDA0002109753110000031
wherein, Bi,tIs the value of the ith row and t column of the matrix B, i.e. for Ai,tValue after interference rejection, Ai , tThe value of the ith row and the t column of the matrix A is represented by pi, the circumferential rate is represented by e, i is 1, 2 and 3 … … P, and t is 1 and 2;
substituting the matrix B into a formula (2), and calculating an adjusting coefficient;
Figure BDA0002109753110000041
rtin order to solve the adjustment coefficient of the t-th column of the obtained matrix B, t is 1 and 2;
then, obtaining a sound preprocessing vector C by using a formula (3);
Figure BDA0002109753110000042
Figure BDA0002109753110000043
wherein, CiIs the ith value of vector C, SiAs an intermediate parameter, Bi,1Is the value of the ith row and 1 st column of the matrix B, Bi,2The value of the ith row and the 2 nd column of the matrix B, min () is the minimum value in the solving bracket, max () is the maximum value in the solving bracket, and i is 1, 2, 3 … …;
transmitting the sound preprocessing vector C to the abnormality checking device;
in the abnormity detection device, a preset detection vector D exists, the number of the intermediate values of the vector D is P, and the vector C and the vector D are substituted into a formula (4) to obtain a detection result;
Figure BDA0002109753110000044
wherein rt is the test result obtained, DiFor the ith value of the vector D,
if the rt is greater than 0.5, the cooling fan is judged to be abnormal, an early warning is sent out, and if the rt is less than or equal to 0.5, the cooling fan is judged not to be abnormal.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic diagram of a control panel structure;
FIG. 2 is a schematic view of the structure at A in FIG. 1;
FIG. 3 is a schematic view of a moisture removing frame structure;
FIG. 4 is a schematic circuit diagram of a fan switch;
FIG. 5 is a schematic diagram of a circuit structure of a portion of the temperature switch;
FIG. 6 is a schematic diagram of a circuit structure of a part of the forced cooling switch;
FIG. 7 is a schematic view of a cooling fan;
FIG. 8 is a schematic diagram of the connection of the voltage regulator circuit.
Detailed Description
In the following description, for purposes of explanation, numerous implementation details are set forth in order to provide a thorough understanding of the various embodiments of the present invention. It should be understood, however, that these implementation details are not to be interpreted as limiting the invention. That is, in some embodiments of the invention, such implementation details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.
In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1 to 6, the control device of the engine cooling fan in this embodiment includes a fan controller 16 and a control panel 1, a fan switch 2 is installed on the control panel 1, a fan switch indicator lamp 4 is also installed on the control panel 1, the fan switch indicator lamp 4 is located right above the fan switch 2, the fan switch indicator lamp 4 is connected in parallel to one side of the fan switch 2, a lamp ring 15 is sleeved on an outer surface of the fan switch indicator lamp 4, an LED light bar 12 is attached to an inner annular wall of the lamp ring 15, the LED light bar 12 is electrically connected to an output end of a storage battery 9 through a wire 8, and the storage battery 9 is installed on a front surface of the control panel 1; the cooling fan 17 is arranged close to the outer surface of the engine body, and the cooling fan 17 is connected with the fan controller 16.
In one embodiment, the outer surface of the fan switch 2 is sleeved with a moisture removing frame 3.
In one embodiment, the fan switch indicator lamp 4 is a yellow LED lamp, the temperature indicator lamp 6 is a green LED lamp, and the forced cooling indicator lamp 7 is a red LED lamp; this design, the colour that the person of facilitating the use lighted according to the pilot lamp judges which switch for the speed of differentiateing makes the operation simpler.
In one embodiment, a layer of filter cover 14 covers the outer surface of the LED light bar 12, and an indicator light groove 13 adapted to an indicator light is formed in the middle of the inner cavity of the light ring 15; this design avoids the luminance of LED lamp strip 12 too high, causes dazzling sensation, has played the effect that reduces luminance, makes LED lamp strip 12's light more soft, is suitable for night more and uses.
In one embodiment, the fan switch 2 is a square switch, and the forced cooling switch 11 is a round switch, which is convenient for a user to distinguish the switch types according to the shapes, and serves the purpose of distinguishing the forced cooling switch 11 from other switches.
As shown in fig. 7, in one embodiment, the cooling fan 17 includes a box 17-1, an air outlet is opened at an upper end of the box 17-1, the air outlet is close to a bottom end of the engine body, an ash discharge port 17-2 is arranged at a lower end of the box 17-1, a filter screen 17-3 is transversely connected in the box 17-1, an inner cavity of the box 17-1 is divided into an air supply chamber 17-4 and a filter chamber 17-5 by the filter screen 17-3, the air supply chamber 17-4 is arranged close to the ash discharge port 17-2, the filter chamber 17-5 is arranged close to the air outlet, a refrigerating sheet set 17-8 is connected on an inner wall of the filter chamber 17-5, a temperature sensor 17-9 is connected on an inner wall of the filter chamber 17-5 in a, a blower 17-6 is arranged at the side end of the box body 17-1 close to the air supply chamber 17-4, a dust removing device 17-7 is arranged in the air supply chamber 17-4, the dust removing device 17-7 comprises a driving motor 17-71, a rotating screw 17-72 connected with the output end of the driving motor 17-71, a rotating nut 17-73 sleeved on the rotating screw 17-72, a first connecting rod 17-74 arranged in parallel with the rotating screw 17-72 and positioned at the upper end of the rotating screw 17-72, a connecting plate 17-75 vertically connected with the side end of the rotating nut 17-73, and a brush 17-76 connected with the connecting plate 17-75 far away from the end of the rotating screw 17-72 and attached to the end of the filter screen 17-3 close to the air supply chamber 17-4, driving motor 17-71 connect in box 17-1 keeps away from forced draught blower 17-6 end, it connects in through bearing frame 17-77 in on the air supply room 17-4 inner wall to rotate screw 17-72 and keep away from driving motor 17-71 end, first connecting rod 17-74 wears to locate in connecting plate 17-75, forced draught blower 17-6, driving motor 17-71 and refrigeration piece group 17-8 all with fan controller 16 is connected, still install temperature switch 5, temperature indicator 6, strong refrigeration switch 11 and strong refrigeration pilot lamp 7 on control panel 1, temperature indicator 6 is located temperature switch 5 directly over, just temperature indicator 6 connects in parallel in one side of temperature switch 5, strong refrigeration pilot lamp 7 is located strong refrigeration switch 11 directly over, and forced cooling pilot lamp 7 connects in parallel in one side of forced cooling switch 11, forced cooling switch 11 with refrigeration piece group 17-8 is connected, temperature switch 5's surface cover is equipped with dampproofing frame 3, forced cooling switch 11's surface cup joints and removes damp frame 10 greatly.
The working principle and the beneficial effects of the technical scheme are as follows: an air feeder 17-6 arranged at the side end of the box body 17-1 guides air into an air feeding chamber 17-4 and sends the air into a filtering chamber 17-5 from a filtering screen 17-3, the air guided into the box body 17-1 is further filtered, the filtered air is sent into an air feeding port 1-3 through a ventilation opening, the filtered dust is collected at the end, close to the air feeding chamber 17-4, of the filtering screen 17-3, a rotating motor 17-71 is started, a rotating screw 17-72 connected to the output end of the rotating motor 17-71 drives a rotating nut 17-73 to reciprocate along the direction of the rotating screw 17-72, the first connecting rod 17-74 limits the moving direction of the connecting plate 17-75, the connecting plate 17-75 drives a brush 17-76 to clean the end, close to the air feeding chamber 17-4, of the filtering screen 17-3, the cleaned ash is discharged from the ash discharging port 17-2, the first connecting rod 17-74 limits the movement direction of the connecting plate 17-75 and covers the upper end of the rotating screw 17-72 to reduce the ash drop adhered to the rotating screw 17-72, and when the temperature sensor 17-9 detects that the temperature is too high, the fan controller 16 sends a working instruction to the refrigerating sheet set 17-8 to bring cold air into the filtering chamber 17-5 and cool the engine body.
In one embodiment, the temperature indicator lamp 6 is a green LED lamp, the forced cooling indicator lamp 7 is a red LED lamp, the temperature switch 5 is a square switch, and the forced cooling switch 11 is a circular switch.
The working principle and the beneficial effects of the technical scheme are as follows: the temperature indicator lamp 6 is a green LED lamp, and the forced cooling indicator lamp 7 is a red LED lamp; this design, the colour that the person of facilitating the use lighted according to the pilot lamp judges which switch for the speed of differentiateing makes the operation simpler, fan switch 2 and temperature switch 5 are square switch, and strong refrigeration switch 11 is circular switch, and this design, the kind of switch is distinguished according to the appearance to the person of facilitating the use, plays the purpose of distinguishing strong refrigeration switch 11 and other switches.
In one embodiment, the structure of removing damp frame 3 and removing damp frame 10 greatly is the same, remove damp frame 3 and remove damp frame 10 greatly the frame upper and lower all seted up the opening, remove damp frame 3 and remove damp frame 10 greatly on two inner walls fixed mounting have moisture absorption case 31, moisture absorption case 31 has seted up a plurality of bleeder vent 32 on keeping away from the surface of frame inner wall, moisture absorption case 31 intussuseption is filled with the drier, the surface mounting of bleeder vent 32 has the filter screen.
The working principle and the beneficial effects of the technical scheme are as follows: according to the invention, the moisture removing frame 3 and the large moisture removing frame 10 are arranged, and the moisture absorption box 31 and the air holes 32 are matched, so that moist air around the fan switch 2, the temperature switch 5 and the forced cooling switch 11 can be effectively absorbed, the aim of drying the air around the switches is achieved, the condition of short circuit or damage of the switches caused by moisture is avoided, and the service life of the switches is greatly prolonged.
When the invention is used (working principle), the fan switch indicator lamp 4, the temperature indicator lamp 6 and the forced cooling indicator lamp 7 are all connected in parallel on a circuit of a control device of an original engine cooling fan, the fan switch indicator lamp 4 is connected in parallel on one side of the fan switch 2, the temperature indicator lamp 6 is connected in parallel on one side of the temperature switch 5, and the forced cooling indicator lamp 7 is connected in parallel on one side of the forced cooling switch 11;
when the LED lamp strip is used at night, the storage battery 9 supplies power to the LED lamp strips 12 in the lamp ring 15 through the wires 8, the light of the LED lamp strips 12 is prevented from being too dazzling through the filter cover 14, and the LED lamp strips 12 can illuminate switches near the indicator lamps, so that a user can conveniently distinguish the switches for use at night;
meanwhile, when the switch is required to be judged to be in an on or off state, when any one of the fan switch 2, the temperature switch 5 and the forced cooling switch 11 is in an on state, the corresponding indicator lamp is in a bright state, and a user can judge whether the switch is in the on state by observing the state of the indicator lamp;
the user can adsorb the humid gas in the air near fan switch 2, temperature switch 5 and forced cooling switch 11 through bleeder vent 32 through adding the material that absorbs moisture in moisture absorption case 31, reaches the purpose of dry air, avoids the switch to wet.
As shown in fig. 8, in one embodiment, the method further includes: the voltage stabilizing circuit 20 is connected with the temperature sensor 17-9, and the voltage stabilizing circuit 20 comprises a P-type field effect transistor MP201, a P-type field effect transistor MP202, a P-type field effect transistor MP203, an N-type field effect transistor MN201, an N-type field effect transistor MN202, an N-type field effect transistor MN203, an N-type field effect transistor MN204, an N-type field effect transistor MN205, a resistor R201, a resistor R202, a resistor R203, a resistor R204, a resistor R205, a resistor R206, a resistor R207, a capacitor C201, a triode Q202, a triode Q203, a triode Q204 and a triode Q205;
the grid electrode of the P-type field effect transistor MP201 is connected with the collector electrode of the triode Q202, the source electrode of the P-type field effect transistor MP201 is connected with the drain electrode of the P-type field effect transistor MP202, and the drain electrode of the P-type field effect transistor MP201 is connected with the drain electrode of the N-type field effect transistor MN 201;
the source electrode of the P-type field effect transistor MP202 is connected with the source electrode of the P-type field effect transistor MP203 and is connected with a power supply VCC in parallel, the grid electrode of the P-type field effect transistor MP202 is connected with the grid electrode of the P-type field effect transistor MP203 and is connected with the drain electrode of the P-type field effect transistor MP203, the drain electrode of the P-type field effect transistor MP2 is connected with the drain electrode of the third N-type field effect transistor MN3, and the drain electrode of the P-type field effect transistor MP202 is connected with the drain electrode of the fourth N-type field effect transistor MN4 and the emitter electrode of;
the drain electrode of the P-type field effect transistor MP203 is connected with the drain electrode of the N-type field effect transistor MN 205;
the grid electrode of the N-type field effect tube MN201 is connected with the grid electrode and the drain electrode of the N-type field effect tube MN204, the source electrode of the N-type field effect tube MN201 is connected with the drain electrode of the N-type field effect tube MN202, and the drain electrode of the N-type field effect tube MN201 is connected with the grid electrode of the N-type field effect tube MN 3;
the grid electrode of the N-type field effect transistor MN202 is connected with the grid electrode of the N-type field effect transistor MN205, and the source electrode of the N-type field effect transistor MN202 is grounded;
the sources of the N-type field effect transistor MN203, the N-type field effect transistor MN204 and the N-type field effect transistor MN205 are all grounded;
one end of the resistor R201 is connected to the collector of the triode Q201, and the other end is grounded;
one end of the resistor R202 is connected to a collector of the triode Q202, the other end of the resistor R202 is connected with one end of the charging capacitor C201, and the other end of the charging capacitor C201 is grounded;
the resistor R203 is connected between the collector of the triode Q202 and the base of the triode Q203;
the resistor R204 is connected between the collector of the triode Q203 and a power supply VCC, and the emitter of the triode Q203 is grounded;
the resistor R205 is connected between one end of the charging capacitor C201 and the collector of the triode Q204, and the emitter of the triode Q204 is grounded;
one end of the resistor R206 is connected with the emitter of the triode Q205, and the other end is connected with the base of the triode Q205;
the resistor R207 is connected with the charging capacitor C201 in parallel;
the emitter of the triode Q201 is connected with the emitter of the triode Q202; the base electrode of the triode Q201 is simultaneously connected with the base electrode of the triode Q202 and the collector electrode of the triode Q201;
an emitter electrode of the triode Q202 serves as an input end Vin of the first voltage stabilizing circuit and is connected with a collector electrode of the triode Q205, and a collector electrode of the triode Q202 serves as an output end Vout of the first voltage stabilizing circuit;
the collector of transistor Q203 is connected to the base of transistor Q204.
The working principle and the beneficial effects of the technical scheme are as follows: the fan controller 16 can more accurately acquire the temperature value in the filtering chamber 17-5 through the voltage stabilizing circuit 20, and when the pressure value in the filtering chamber 17-5 is greater than a preset threshold value, the pressure value indicates that: in case 1, the filter screen 17-3 is blocked, and at the moment, the dust removal device 17-7 cleans the filter screen 17-3; 2. the engine rotates at high power to generate heat, at the moment, the fan controller 16 sends a working instruction to the refrigerating sheet group 17-8, cold air is brought into the filtering chamber 17-5, and the engine body is cooled.
In one embodiment, an intelligent inspection device is arranged on the outer surface of the cooling fan, the intelligent inspection device can automatically judge whether the cooling fan is abnormal or not, and send an alarm if the cooling fan is abnormal, wherein the specific steps of the inspection are as follows:
the intelligent inspection device is provided with a sound receiving device, a sound preprocessing device and an abnormity inspection device;
firstly, the sound receiving device acquires the sound of the cooling fan in working for a preset time length, and transmits the sound to the sound preprocessing device;
the sound preprocessing device counts the total frame number P of the sound transmitted by the sound receiving device, obtains the values of a first audio and a second audio of each frame and forms a matrix A, the matrix A is a value of P rows and 2 columns, the matrix A is substituted into a formula (1), interference elimination is carried out, and an elimination matrix B is obtained;
Figure BDA0002109753110000111
wherein, Bi,tIs the value of the ith row and t column of the matrix B, i.e. for Ai,tValue after interference rejection, Ai,tThe value of the ith row and the t column of the matrix A is represented by pi, the circumferential rate is represented by e, i is 1, 2 and 3 … … P, and t is 1 and 2;
substituting the matrix B into a formula (2), and calculating an adjusting coefficient;
Figure BDA0002109753110000121
rtin order to solve the adjustment coefficient of the t-th column of the obtained matrix B, t is 1 and 2;
then, obtaining a sound preprocessing vector C by using a formula (3);
Figure BDA0002109753110000122
Figure BDA0002109753110000123
wherein, CiIs the ith value of vector C, SiAs an intermediate parameter, Bi,1Is the value of the ith row and 1 st column of the matrix B, Bi,2The value of the ith row and the 2 nd column of the matrix B, min () is the minimum value in the solving bracket, max () is the maximum value in the solving bracket, and i is 1, 2, 3 … …;
transmitting the sound preprocessing vector C to the abnormality checking device;
in the abnormity detection device, a preset detection vector D exists, the number of the intermediate values of the vector D is P, and the vector C and the vector D are substituted into a formula (4) to obtain a detection result;
Figure BDA0002109753110000124
wherein rt is the test result obtained, DiFor the ith value of the vector D,
if the rt is greater than 0.5, the cooling fan is judged to be abnormal, an early warning is sent out, and if the rt is less than or equal to 0.5, the cooling fan is judged not to be abnormal.
By utilizing the technology, the sound of the cooling fan during working can be acquired by the intelligent inspection device, whether the cooling fan is abnormal or not can be quickly inspected, if the cooling fan is abnormal, early warning is carried out, in the judgment process, the acquired sound can be rejected by utilizing the formula (1), so that the detection result can be more accurately obtained in the later judgment process, the first audio and the second audio can be subjected to coefficient adjustment according to the respective characteristics of the audio by utilizing the formula (2) and the formula (3), a sound preprocessing vector is formed, the vector has more characteristics, meanwhile, the calculation amount can be greatly reduced, and whether the cooling fan is abnormal or not can be accurately judged by utilizing the formula (4).
The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (8)

1. The utility model provides a controlling means of engine cooling fan, includes fan controller (16) and control panel (1), installs fan switch (2) on control panel (1), its characterized in that: the control panel (1) is further provided with a fan switch indicator lamp (4), the fan switch indicator lamp (4) is located right above the fan switch (2), the fan switch indicator lamp (4) is connected to one side of the fan switch (2) in parallel, a lamp ring (15) is sleeved on the outer surface of the fan switch indicator lamp (4), an LED lamp strip (12) is attached to the inner ring wall of the lamp ring (15), the LED lamp strip (12) is electrically connected with the output end of a storage battery (9) through a wire (8), and the storage battery (9) is installed on the front side of the control panel (1); the cooling device further comprises a cooling fan (17) arranged close to the outer surface of the engine body, and the cooling fan (17) is connected with the fan controller (16).
2. The control device of an engine cooling fan according to claim 1, characterized in that: the outer surface of the fan switch (2) is sleeved with a dehumidifying frame (3).
3. The control device of an engine cooling fan according to claim 1, characterized in that: the fan switch indicator lamp (4) is a yellow LED lamp.
4. The control device of an engine cooling fan according to claim 1, characterized in that: the outer surface of the LED lamp strip (12) is covered with a layer of light filtering cover (14), and the middle part of the inner cavity of the lamp ring (15) is provided with an indicating lamp groove (13) matched with the indicating lamp.
5. The control device of an engine cooling fan according to claim 1, characterized in that: the fan switch (2) is a square switch.
6. The control device of the engine cooling fan according to claim 1, wherein the cooling fan (17) comprises a box body (17-1), an air outlet is formed in the upper end of the box body (17-1), the air outlet is close to the bottom end of the engine body, an ash discharge port (17-2) is formed in the lower end of the box body (17-1), a filter screen (17-3) is transversely connected into the box body (17-1), the inner cavity of the box body (17-1) is divided into an air supply chamber (17-4) and a filter chamber (17-5) through the filter screen (17-3), the air supply chamber (17-4) is close to the ash discharge port (17-2), the filter chamber (17-5) is close to the air outlet, and a refrigerating sheet group (17-8) is connected onto the inner wall of the filter chamber (17-5), the inner wall of the filtering chamber (17-5) is connected with a temperature sensor (17-9) at a position close to an air outlet, a blower (17-6) is arranged at a position close to an air supply chamber (17-4) at the side end of the box body (17-1), a dust removing device (17-7) is arranged in the air supply chamber (17-4), the dust removing device (17-7) comprises a driving motor (17-71), a rotating screw rod (17-72) connected with the output end of the driving motor (17-71), a rotating nut (17-73) sleeved on the rotating screw rod (17-72), a first connecting rod (17-74) arranged in parallel with the rotating screw rod (17-72) and positioned at the upper end of the rotating screw rod (17-72), a connecting plate (17-75) vertically connected with the side end of the rotating nut (17-73) and a connecting plate (17) 75) Keep away from rotation screw rod (17-72) end and attached in filter screen (17-3) are close to brush (17-76) of air supply room (17-4) end, rotation screw rod (17-72) keep away from driving motor (17-71) end and pass through bearing frame (17-77) connect in on air supply room (17-4) inner wall, first connecting rod (17-74) wear to locate in connecting plate (17-75), forced draught blower (17-6), driving motor (17-71) and refrigeration piece group (17-8) all with fan controller (16) are connected, still install temperature switch (5), temperature pilot lamp (6), forced cooling switch (11) and forced cooling pilot lamp (7) on control panel (1), temperature pilot lamp (6) are located directly over temperature switch (5), just temperature indicator (6) connect in parallel in one side of temperature switch (5), forced cooling pilot lamp (7) are located forced cooling switch (11) directly over, and forced cooling pilot lamp (7) connect in parallel in one side of forced cooling switch (11), forced cooling switch (11) with refrigeration piece group (17-8) are connected, the surface cover of temperature switch (5) is equipped with dampproofing frame (3), the surface of forced cooling switch (11) has cup jointed and has removed damp frame (10) greatly.
7. The control device of the engine cooling fan according to claim 1, wherein the temperature indicator lamp (6) is a green LED lamp, the forced cooling indicator lamp (7) is a red LED lamp, the temperature switch (5) is a square switch, and the forced cooling switch (11) is a circular switch.
8. The control device of an engine cooling fan according to claim 2, characterized in that: remove damp frame (3) and remove damp frame (10) structure the same greatly, remove damp frame (3) and remove the frame of damp frame (10) upper and lower and all seted up the opening greatly, remove damp frame (3) and remove on two inner walls of damp frame (10) greatly fixed mounting have moisture absorption case (31), moisture absorption case (31) are kept away from on the surface of frame inner wall and have been seted up a plurality of bleeder vent (32), moisture absorption case (31) intussuseption is filled with the drier, the surface mounting of bleeder vent (32) has the filter screen.
CN201910566714.1A 2019-06-27 2019-06-27 Control device for engine cooling fan Active CN111664108B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112503034A (en) * 2021-02-08 2021-03-16 亿昇(天津)科技有限公司 Air inlet system with purging function and purging method thereof
CN116447001A (en) * 2023-06-12 2023-07-18 山东莱柴动力有限公司 Water cooling assembly of diesel engine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204596661U (en) * 2015-05-07 2015-08-26 陕西华山建设有限公司 A kind of waterproof anticreeping switch
CN105147442A (en) * 2015-09-07 2015-12-16 天津德健科技发展有限公司 Analgesia therapeutic equipment
CN205477891U (en) * 2016-01-14 2016-08-17 山东科技大学 Quick cooling of engine and waste heat device for huge profit
CN205862251U (en) * 2016-06-16 2017-01-04 哲弗智能系统（上海）有限公司 Automotive power temperature control device of vehicle detection structure
CN109395489A (en) * 2018-10-23 2019-03-01 西安兰鑫工业自动化工程有限公司 A kind of automation instrument dust guard
CN208861851U (en) * 2018-07-26 2019-05-14 浙江一通电气有限公司 Single-control switch controlled by touch

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204596661U (en) * 2015-05-07 2015-08-26 陕西华山建设有限公司 A kind of waterproof anticreeping switch
CN105147442A (en) * 2015-09-07 2015-12-16 天津德健科技发展有限公司 Analgesia therapeutic equipment
CN205477891U (en) * 2016-01-14 2016-08-17 山东科技大学 Quick cooling of engine and waste heat device for huge profit
CN205862251U (en) * 2016-06-16 2017-01-04 哲弗智能系统（上海）有限公司 Automotive power temperature control device of vehicle detection structure
CN208861851U (en) * 2018-07-26 2019-05-14 浙江一通电气有限公司 Single-control switch controlled by touch
CN109395489A (en) * 2018-10-23 2019-03-01 西安兰鑫工业自动化工程有限公司 A kind of automation instrument dust guard

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112503034A (en) * 2021-02-08 2021-03-16 亿昇(天津)科技有限公司 Air inlet system with purging function and purging method thereof
CN112503034B (en) * 2021-02-08 2021-04-30 亿昇(天津)科技有限公司 Air inlet system with purging function and purging method thereof
CN116447001A (en) * 2023-06-12 2023-07-18 山东莱柴动力有限公司 Water cooling assembly of diesel engine
CN116447001B (en) * 2023-06-12 2023-08-22 山东莱柴动力有限公司 Water cooling assembly of diesel engine

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