CN212906090U - Fan control circuit and control device of notebook computer - Google Patents
Fan control circuit and control device of notebook computer Download PDFInfo
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- CN212906090U CN212906090U CN202022320124.1U CN202022320124U CN212906090U CN 212906090 U CN212906090 U CN 212906090U CN 202022320124 U CN202022320124 U CN 202022320124U CN 212906090 U CN212906090 U CN 212906090U
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- fan
- resistor
- control circuit
- notebook computer
- rotating speed
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The utility model discloses a fan control circuit and control device of notebook computer, the signal output end of temperature sensor is connected with the signal input end of the main controller, the signal output end of the main controller is connected with the signal input end of the fan rotating speed control circuit, the signal output end of the fan rotating speed control circuit is connected with the signal input end of the fan controller, the temperature sensor transmits the real-time temperature of the notebook computer to the main controller, the main controller transmits the temperature information to the fan rotating speed control circuit, the fan rotating speed control circuit outputs different power to the fan controller, thereby changing the rotating speed of the cooling fan, so that the notebook computer has fast rotating speed and better cooling effect when running at low power consumption, the rotating speed of the cooling fan is reduced, so that the power consumption is reduced, and the resource waste is reduced.
Description
Technical Field
The utility model relates to a notebook computer technical field especially relates to a notebook computer's fan control circuit and controlgear.
Background
Because the inside heat dissipation space of notebook computer is narrow and small, the high performance and the high load operation of each part, will bring too much heat, usually accomplish the derivation of heat through the radiator fan of notebook self-bring, however, in the higher weather of outdoor temperature, like summer, along with the rising of notebook computer ambient temperature, the radiator fan of notebook itself is because the heat dissipation is not enough, can lead to the performance decline of notebook computer during operation, influence user's user experience, therefore external notebook computer radiator fan has appeared, but current external radiator fan can't adjust the temperature according to the actual temperature of notebook computer, make the consumption increase, cause the waste.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fan control circuit and controlgear of notebook computer, the current external radiator fan who aims at solving among the prior art can't adjust the temperature according to notebook computer's actual temperature for the consumption increase causes extravagant technical problem.
In order to achieve the above object, the present invention provides a fan control circuit of a notebook computer, comprising a USB connector, a main controller, a temperature sensor, a fan driving circuit and a cooling fan, wherein the fan driving circuit comprises a fan speed control circuit and a fan controller, the USB connector is connected to a USB interface of the notebook computer, an output end of the USB connector is connected to the main controller, a signal output end of the temperature sensor is connected to a signal input end of the main controller, a signal output end of the main controller is connected to a signal input end of the fan speed control circuit, a feedback signal output end of the fan speed control circuit is connected to a feedback signal input end of the main controller, a signal output end of the fan speed control circuit is connected to a signal input end of the fan controller, and a signal output end of the fan controller is connected to a signal input end of the cooling fan, the fan feedback signal output end of the cooling fan is connected with the fan feedback signal input end of the fan rotating speed control circuit;
the fan rotating speed control circuit comprises a single chip microcomputer U1 and an operational amplifier circuit, the operational amplifier circuit comprises a triode Q1, a triode Q2, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5 and a capacitor C1, the base electrode of the triode Q1 is connected with the resistor R1 in parallel, the other end of the resistor R1 is connected with the output end of the singlechip U1, the collector of the triode Q1 is connected with one end of a resistor R2, the other end of the resistor R2 is connected with the base of the triode Q2 in parallel and then connected with one end of a resistor R3, an emitting electrode of the triode Q2 is connected with the other end of the resistor R3 in parallel and then is connected with a power supply terminal VCC of the singlechip U1, the collector of the triode Q2 is connected with a capacitor C1 and one end of a resistor R4, the other end of the resistor R4 is connected with the input end of the fan controller, the output end of the fan controller is connected with one end of a resistor R5, and the other end of the resistor R5 is connected with the input end PD3 of the single-chip microcomputer U1.
The utility model also provides a fan control equipment of notebook computer, including a fan control circuit of notebook computer, still include supporting seat, mount pad, display screen, knob and alarm, the mount pad with supporting seat fixed connection, and be located the top of supporting seat, be provided with in the mount pad fan control circuit, be provided with on the mount pad the display screen, the side of mount pad is provided with the knob, the display screen with the signal output part of master controller is connected, the alarm with the output of master controller is connected, the display screen with the alarm all with the master controller is parallelly connected, the knob links to each other with the signal input part of encoder.
The heat radiation fan is characterized in that a placing area, an air supply area and a bottom plate are arranged in the mounting seat, the bottom plate is detachably connected with the bottom of the mounting seat, the heat radiation fan is detachably connected with the inner wall of the mounting seat, is positioned in the placing area and above the bottom plate, the air supply area corresponds to the output end of the heat radiation fan, and a plurality of ventilation openings are formed in the bottom plate.
The mounting base further comprises a throttling piece, the throttling piece is of an arc structure and is of a hollow structure, the throttling piece is detachably connected with the bottom plate and located above the bottom plate, the bottom plate is covered with the throttling piece, the outer surface of the radiating fan is covered with the throttling piece, and one end of the bottom plate, away from the throttling piece, is provided with a notch.
The inner wall of the air supply area is provided with a plurality of sliding grooves, and the sliding grooves are arranged in a scattering structure by taking the notches as centers.
Wherein, be provided with the filter screen on the notch.
Wherein, be provided with the skid resistant course on the supporting seat.
The beneficial effects of the utility model are embodied in: the signal output end of the temperature sensor is connected with the signal input end of the main controller, the signal output end of the main controller is connected with the signal input end of the fan rotating speed control circuit, the signal output end of the fan rotating speed control circuit is connected with the signal input end of the fan controller, the signal output end of the fan controller is connected with the signal input end of the cooling fan, the temperature sensor transmits the real-time temperature of the notebook computer to the main controller, the main controller transmits the temperature information to the fan rotating speed control circuit, the fan rotating speed control circuit outputs different power to the fan controller, so that the rotating speed of the cooling fan is changed, the cooling fan rotating speed is higher and the cooling effect is better in the high-power running process of the notebook computer, and the notebook computer runs at low power consumption, the rotating speed of the cooling fan is reduced, so that the power consumption is reduced, and the resource waste is reduced.
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 structural diagram of a fan control circuit according to the present invention.
Fig. 2 is a schematic structural diagram of the fan rotation speed control circuit of the present invention.
Fig. 3 is a schematic structural diagram of the fan control apparatus of the present invention.
Fig. 4 is an internal structural schematic diagram of the fan control apparatus of the present invention.
The device comprises a USB connector 1, a master controller 2, a temperature sensor 3, a cooling fan 4, a fan rotating speed control circuit 5, a fan controller 6, a display screen 7, a knob 8, an alarm 9, a support seat 10, a mounting seat 11, a placement area 12, an air supply area 13, a bottom plate 14, a throttling element 15, a notch 16, a chute 17, a filter screen 18 and an anti-slip layer 19.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and 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 thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 to 4, the present invention provides a fan control circuit of a notebook computer, including a USB connector 1, a main controller 2, a temperature sensor 3, a fan drive circuit and a cooling fan 4, wherein the fan drive circuit includes a fan speed control circuit 5 and a fan controller 6, the USB connector 1 is connected to a USB interface of the notebook computer, an output end of the USB connector 1 is connected to the main controller 2, a signal output end of the temperature sensor 3 is connected to a signal input end of the main controller 2, a signal output end of the main controller 2 is connected to a signal input end of the fan speed control circuit 5, a feedback signal output end of the fan speed control circuit 5 is connected to a feedback signal input end of the main controller 2, a signal output end of the fan speed control circuit 5 is connected to a signal input end of the fan controller 6, a signal output end of the fan controller 6 is connected with a signal input end of the cooling fan 4, and a fan feedback signal output end of the cooling fan 4 is connected with a fan feedback signal input end of the fan rotating speed control circuit 5;
the fan rotating speed control circuit 5 comprises a single chip microcomputer U1 and an operational amplifier circuit, the operational amplifier circuit comprises a triode Q1, a triode Q2, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5 and a capacitor C1, the base electrode of the triode Q1 is connected with the resistor R1 in parallel, the other end of the resistor R1 is connected with the output end of the singlechip U1, the collector of the triode Q1 is connected with one end of a resistor R2, the other end of the resistor R2 is connected with the base of the triode Q2 in parallel and then connected with one end of a resistor R3, an emitting electrode of the triode Q2 is connected with the other end of the resistor R3 in parallel and then is connected with a power supply terminal VCC of the singlechip U1, the collector of the triode Q2 is connected with a capacitor C1 and one end of a resistor R4, the other end of the resistor R4 is connected with the input end of the fan controller 6, the output end of the fan controller 6 is connected with one end of a resistor R5, and the other end of the resistor R5 is connected with the input end PD3 of the single-chip microcomputer U1.
In this embodiment, the model of the single chip microcomputer U1 is atemega 8L, the signal output end of the temperature sensor 3 is connected to the signal input end of the main controller 2, the signal output end of the main controller 2 is connected to the signal input end of the fan rotation speed control circuit 5, the feedback signal output end of the fan rotation speed control circuit 5 is connected to the feedback signal input end of the main controller 2, the signal output end of the fan rotation speed control circuit 5 is connected to the signal input end of the fan controller 6, the signal output end of the fan controller 6 is connected to the signal input end of the cooling fan 4, the fan feedback signal output end of the cooling fan 4 is connected to the fan feedback signal input end of the fan rotation speed control circuit 5, and the temperature sensor 3 transmits the real-time temperature of the notebook computer to the main controller, the main controller 2 transmits temperature information to the fan rotating speed control circuit 5, and the fan rotating speed control circuit 5 outputs power with different sizes to the fan controller 6, so that the rotating speed of the cooling fan 4 is changed, the rotating speed of the cooling fan 4 is high in the high-operation process of the notebook computer, the cooling fan 4 is high in rotating speed, the cooling effect is good, and when the notebook computer runs at low power consumption, the rotating speed of the cooling fan 4 is reduced, so that the power consumption is reduced, and the resource waste is reduced.
The utility model also provides a fan controlgear of notebook computer, fan control circuit including notebook computer still includes supporting seat 10, mount pad 11, display screen 7, knob 8 and alarm 9, mount pad 11 with supporting seat 10 fixed connection, and be located the top of supporting seat 10, be provided with in the mount pad 11 fan control circuit, be provided with on the mount pad 11 display screen 7, the side of mount pad 11 is provided with knob 8, display screen 7 with master controller 2's signal output part is connected, alarm 9 with master controller 2's output is connected, display screen 7 with alarm 9 all with master controller 2 is parallelly connected, knob 8 links to each other with the signal input part of encoder.
In this embodiment, master controller 2 will the temperature information transmission that temperature sensor 3 accepted extremely display screen 7, the user of service can be according to the temperature information that shows on the display screen 7 is rotatory knob 8, through master controller 2 with operation information transmission extremely fan speed governing control circuit, through singlechip U1 is right radiator fan 4 carries out the speed governing, alarm 9 is buzzer siren 9, when the notebook computer temperature is unusual, master controller 2 control alarm 9 works, reminds the user of service to in time pull out the power, prevents that the notebook computer from leading to the damage because of the high temperature.
Further, be provided with in the mount pad 11 and place district 12, air supply district 13 and bottom plate 14, bottom plate 14 with the connection can be dismantled to the bottom of mount pad 11, radiator fan 4 with the connection can be dismantled to the inner wall of mount pad 11, and be located place in the district 12, and be located the top of bottom plate 14, air supply district 13 with radiator fan 4's output is corresponding, be provided with a plurality of vents on the bottom plate 14.
In this embodiment, the bottom plate 14 can be detachably connected to the mounting base 11, the heat dissipation fan 4 can be detachably connected to the bottom plate 14, so that the heat dissipation fan is more convenient to install and maintain, the vent is formed in the bottom plate 14, and the heat dissipation fan 4 can drive more air to flow when rotating, so that the heat dissipation effect is better.
Further, the mounting base 11 further includes a throttling element 15, the throttling element 15 is of an arc structure, the throttling element 15 is of a hollow structure, the throttling element 15 is detachably connected with the bottom plate 14 and located above the bottom plate 14, the throttling element covers the outer surface of the heat dissipation fan 4, and one end, far away from the bottom plate 14, of the throttling element 15 is provided with a notch 16.
In this embodiment, the aperture of the notch 16 of the throttling element 15 is smaller, so that when the heat dissipation fan 4 rotates, the flow rate of the driven gas is accelerated at the notch 16, a pressure difference is formed, more air is gushed from the vent of the bottom plate 14, more air flows, and the heat dissipation effect is better.
Further, be provided with a plurality of spout 17 on the inner wall of air supply district 13, it is a plurality of spout 17 with notch 16 is the center, is the scattering structure setting, be provided with filter screen 18 on the notch 16.
In this embodiment, the sliding slot 17 and the filter screen 18 can collect dust, so that the dust does not fall to the heat dissipation fan 4, which affects the heat dissipation effect.
Further, an anti-slip layer 19 is disposed on the support base 10.
In this embodiment, the anti-slip layer 19 prevents the support base 10 from sliding freely when a user uses the notebook computer.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (7)
1. A fan control circuit of a notebook computer is characterized in that,
comprises a USB joint, a main controller, a temperature sensor, a fan driving circuit and a heat radiation fan, wherein the fan driving circuit comprises a fan rotating speed control circuit and a fan controller, the USB joint is connected with a USB interface of a notebook computer, the output end of the USB joint is connected with the main controller, the signal output end of the temperature sensor is connected with the signal input end of the main controller, the signal output end of the main controller is connected with the signal input end of the fan rotating speed control circuit, the feedback signal output end of the fan rotating speed control circuit is connected with the feedback signal input end of the main controller, the signal output end of the fan rotating speed control circuit is connected with the signal input end of the fan controller, the signal output end of the fan controller is connected with the signal input end of the cooling fan, and the fan feedback signal output end of the cooling fan is connected with the fan feedback signal input end of the fan rotating speed control circuit;
the fan rotating speed control circuit comprises a single chip microcomputer U1 and an operational amplifier circuit, the operational amplifier circuit comprises a triode Q1, a triode Q2, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5 and a capacitor C1, the base electrode of the triode Q1 is connected with the resistor R1 in parallel, the other end of the resistor R1 is connected with the output end of the singlechip U1, the collector of the triode Q1 is connected with one end of a resistor R2, the other end of the resistor R2 is connected with the base of the triode Q2 in parallel and then connected with one end of a resistor R3, an emitting electrode of the triode Q2 is connected with the other end of the resistor R3 in parallel and then is connected with a power supply terminal VCC of the singlechip U1, the collector of the triode Q2 is connected with a capacitor C1 and one end of a resistor R4, the other end of the resistor R4 is connected with the input end of the fan controller, the output end of the fan controller is connected with one end of a resistor R5, and the other end of the resistor R5 is connected with the input end PD3 of the single-chip microcomputer U1.
2. A fan control apparatus of a notebook computer, comprising the fan control circuit of the notebook computer according to claim 1,
still include supporting seat, mount pad, display screen, knob and alarm, the mount pad with supporting seat fixed connection, and be located the top of supporting seat, be provided with in the mount pad fan control circuit, be provided with on the mount pad the display screen, the side of mount pad is provided with the knob, the display screen with the signal output part of master controller is connected, the alarm with the output of master controller is connected, the display screen with the alarm all with the master controller is parallelly connected, the knob links to each other with the signal input part of encoder.
3. The fan control apparatus of a notebook computer according to claim 2,
the heat radiation fan is characterized in that a placing area, an air supply area and a bottom plate are arranged in the mounting seat, the bottom plate is detachably connected with the bottom of the mounting seat, the heat radiation fan is detachably connected with the inner wall of the mounting seat and is positioned in the placing area and above the bottom plate, the air supply area corresponds to the output end of the heat radiation fan, and a plurality of ventilation openings are formed in the bottom plate.
4. The fan control apparatus of a notebook computer according to claim 3,
the mounting base further comprises a throttling piece, the throttling piece is of an arc structure and is of a hollow structure, the throttling piece is detachably connected with the bottom plate and located above the bottom plate, the bottom plate covers the outer surface of the radiating fan, and one end of the bottom plate, away from the throttling piece, is provided with a notch.
5. The fan control apparatus of a notebook computer according to claim 4,
the inner wall of the air supply area is provided with a plurality of sliding grooves, and the sliding grooves are arranged in a scattering structure by taking the notches as centers.
6. The fan control apparatus of a notebook computer according to claim 5,
and a filter screen is arranged on the notch.
7. The fan control apparatus of a notebook computer according to claim 2,
and an anti-skid layer is arranged on the supporting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022320124.1U CN212906090U (en) | 2020-10-16 | 2020-10-16 | Fan control circuit and control device of notebook computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022320124.1U CN212906090U (en) | 2020-10-16 | 2020-10-16 | Fan control circuit and control device of notebook computer |
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| Publication Number | Publication Date |
|---|---|
| CN212906090U true CN212906090U (en) | 2021-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022320124.1U Active CN212906090U (en) | 2020-10-16 | 2020-10-16 | Fan control circuit and control device of notebook computer |
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| Country | Link |
|---|---|
| CN (1) | CN212906090U (en) |
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2020
- 2020-10-16 CN CN202022320124.1U patent/CN212906090U/en active Active
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