CN108073252A - Fan assembly and apply its electronic device - Google Patents
Fan assembly and apply its electronic device Download PDFInfo
- Publication number
- CN108073252A CN108073252A CN201611015890.9A CN201611015890A CN108073252A CN 108073252 A CN108073252 A CN 108073252A CN 201611015890 A CN201611015890 A CN 201611015890A CN 108073252 A CN108073252 A CN 108073252A
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- fan
- external force
- motor
- control circuit
- sensor
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/20—Cooling means
- G06F1/203—Cooling means for portable computers, e.g. for laptops
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
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- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
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- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The present invention discloses a kind of fan assembly.Fan assembly includes fan protection component, fan motor, sensor and motor control circuit.Fan motor is arranged at the inside of fan protection component.Sensor corresponds to according to the external force to detect the external force that fan protection component is born and generates a sensing signal.Motor control circuit receives sensing signal.When motor control circuit processing sensing signal obtains external force more than the first external force, motor control circuit control fan motor enters the state that shuts down.For fan motor when shutting down and external force is less than the first external force, the timing circuit of motor control circuit starts timing.When timing circuit timing is more than first time, motor control circuit control fan motor leaves the state of shutting down.
Description
Technical field
The present invention relates to fan assemblies, more particularly to shut down guarantor of the fan under lock-out state or low-speed mode
Shield.
Background technology
Figure 1A is a schematic diagram of a fan assembly 10, and Figure 1B is then a schematic diagram of a laptop 11.Scheming
In 1B, fan assembly 10 is arranged at the inside of laptop 11.Since the fuselage thickness of laptop 11 in recent years tends to
Ultrathin develops, and the design of fan assembly 10 also coordinates to be developed towards ultrathin.This designer trends cause laptop 11
Airframe structure weakened.As shown in Figure 1B, laptop 11 can all be applied during user takes or moves
External force is (for example, to the keyboard face 14 of laptop 11 external force 12 applied or apply the lower cover 15 of laptop 11
External force 13), and then the airframe structure of laptop 11 may be caused to deform (as shown in the dotted line of Figure 1B).Thus, wind
Fan device 10 may generate interference effect with the airframe structure of laptop 11.Lighter influence causes fan assembly 10 and pen
Remember that the airframe structure of this computer 11 generates interference abnormal sound.Heavier influence, which then causes the flabellum of fan assembly 10 to be broken, makes heat dissipation work(
Can failure, and then cause laptop 11 radiate it is bad generate heat work as.Therefore, super thin fan (for example, fan assembly 10) exists
Validation test in system (for example, laptop 11) becomes more difficult.In view of this, the present invention proposes a kind of fan dress
It puts and the electronic device using it.
The content of the invention
One embodiment of the invention provides a kind of fan assembly.The fan assembly includes a fan protection component, a fan
Motor, at least a sensor and a motor control circuit.The fan motor is arranged at the inside of the fan protection component.This is at least
One sensor, to detect a deformation quantity of an external force that the fan protection component born or the fan protection component,
And it is corresponded to according to the external force or the deformation quantity and generates an at least sensing signal.The motor control circuit receives at least one sense
Survey signal.When the motor control circuit handle an at least sensing signal obtain the external force more than one first external force or should
When deformation quantity is more than first deformation quantity, which controls the fan motor to shut down state into one.The wind
Fan motor when shut down state and the external force are less than first external force or the deformation quantity is less than first deformation quantity,
One timing circuit of the motor control circuit starts timing.When the timing circuit timing is more than a first time, the motor control
Circuit processed controls the fan motor to leave the state that shuts down.
One embodiment of the invention provides a kind of electronic device.The electronic device includes a fan assembly, at least one sensing
Device and a fan protection component.The fan assembly includes a fan motor and a motor control circuit.The fan motor is arranged at
The inside of the fan protection component.An at least sensor detects the external force or the wind that the fan protection component is born
One deformation quantity of fan protection component, and corresponded to according to the external force or the deformation quantity and generate an at least sensing signal.The motor
Control circuit receives an at least sensing signal.When the motor control circuit handle an at least sensing signal obtain outside this by
When power is more than one first external force or the deformation quantity and is more than first deformation quantity, the motor control circuit control the fan motor into
Enter one to shut down state.The fan motor is less than first external force or the deformation in shut down state and the external force
When amount is less than first deformation quantity, a timing circuit of the motor control circuit starts timing.When the timing circuit timing is more than
During one first time, which controls the fan motor to leave the state that shuts down.
Description of the drawings
Figure 1A is a schematic diagram of a fan assembly 10.
Figure 1B is a schematic diagram of a laptop 11.
Fig. 2A is the block diagram that an embodiment according to the invention realizes an electronic device 2.
Fig. 2 B are the schematic diagrames that an embodiment according to the invention represents fan assembly 21.
Fig. 2 C are the cut-away views that an embodiment according to the invention realizes fan assembly 21.
Fig. 2 D are the cut-away views that an embodiment according to the invention realizes electronic device 2.
Fig. 2 E are the cut-away views that another embodiment according to the invention realizes electronic device 2.
Fig. 3 is the configuration diagram that an embodiment according to the invention realizes sensor 23.
Fig. 4 A are that an embodiment according to the invention realizes the fan motor 24 of electronic device 2 and motor control circuit 25
One block diagram.
Fig. 4 B are the block diagrams that another embodiment according to the invention realizes electronic device 2.
Fig. 4 C are the sequence diagrams that another embodiment according to the invention realizes electronic device 2.
Fig. 5 is the sequential that an embodiment according to the invention realizes sensing signal, motor drive signal and brake signal
Figure.
Fig. 6 is a flow chart of the control method that an embodiment according to the invention is realized for fan assembly.
Reference sign：
10~fan assembly
11~laptop
12nd, 13~external force
14~keyboard face
15~lower cover
2~electronic device
21~fan assembly
22~fan protection component
220~fan frame
221~support column
222~trigger mechanism part
23rd, 231-233~sensor
24~fan motor
241~coil group
25~motor control circuit
251~timing circuit
252~pwm control circuit
253~brake signal control circuit
254~logic circuit
255~pre-driver circuitry
256~microprocessor
257~coil switching circuitry
26~external force
27~dotted line
28~store media
SPWM~motor drive signal
SBrake~brake signal
SF~sensing signal
S601-S607~step
Specific embodiment
The embodiment or example of the appended diagram of the disclosure will as described below.The scope of the disclosure is not so limited.This
Field technology personnel should be able to know do not depart from the disclosure spirit and framework on the premise of, when can make it is a little change, replace and
Displacement.In embodiment of the disclosure, component symbol may be used repeatedly, and the connection with several embodiments of the disclosure may share phase
Same component symbol, but the feature member used in an embodiment is not necessarily that another embodiment uses.
Fan assembly proposed by the present invention can prejudge the generation of abnormality, and can be before abnormality generation
Processing and protection in advance can also provide system and judge the reason for abnormality occurs.Fan assembly proposed by the present invention can avoid
Fan is chronically at interference friction state and generates excessive noise.In addition, fan assembly proposed by the present invention can also avoid fan
It causes to damage in stopping being released the loop process restarted, can also recover the fortune of fan in real time after unusual condition exclusion
Turn.
In one embodiment of this invention, a fan assembly collocation at least sensor, and the design of matching mechanism part.Work as wind
When the fan frame of fan device is generated certain deformation quantity by external force, the fan motor automatic retarding of fan assembly or shut down to keep away
Exempt from the generation of abnormal sound.Treat the fan motor of external force disappearance rear fan device function back to normal again.Therefore, filled using said fans
The electronic device (for example, electric system) put is more easily by the validation test of related machine.
Fig. 2A is the block diagram that an embodiment according to the invention realizes an electronic device 2.In the embodiment of Fig. 2A,
Electronic device 2 includes a fan assembly 21, a fan protection component 22 and an at least sensor 23.Fan assembly 21 includes a wind
Fan 24 and one motor control circuit 25 of motor.In an embodiment of the present invention, fan protection component 22 can be electronic device 2
One fan frame of one shell or fan assembly 21, sensor 23 can be opened for a pressure sensor, a distortion sensing device, a pressure
Pass, a touch-switch, a thin film switch or a limit switch, but the present invention is not limited to this.Fan motor 24 can be with
It is a single-phase motor, a two-phase motor or a three-phase motor, and motor control circuit 25 can be a microprocessor, but this hair
It is bright to be not limited to this.Fan motor 24 is arranged at the inside of fan protection component 22.Different designs according to electronic device 2
Demand, sensor 23 may be disposed on fan assembly 21, the inside of fan protection component 22 or fan protection component 22
It is external.Sensor 23 is detecting a shape of an external force that fan protection component 22 is born or fan protection component 22
Variable, and corresponded to according to testing result and generate an at least sensing signal SF.Motor control circuit 25 is electrically connected to sensor 23.
Motor control circuit 25 receives an at least sensing signal SF, and according to an at least sensing signal SFDetermine motor drive signal
SPWMContent and brake signal SBrakeVoltage level, wherein motor drive signal SPWMWith brake signal SBrakeTo control
The stop and start of fan motor 24.
In an embodiment of the present invention, sensor 23 is a deformation detectors.The deformation detectors detect fan protection structure
Part 22 bears the deformation quantity caused by the external force, and is corresponded to according to the deformation quantity and generate an at least sensing signal SF.When
Motor control circuit 25 handles an at least sensing signal SFWhen obtaining the deformation quantity more than first deformation quantity, motor control electricity
Road 25 controls fan motor 24 to shut down state into one.In an embodiment of the present invention, which may be set to
Fan drum deformation reaches the deformation quantity for being enough that rotor is interfered to rotate.When fan motor 24 is in shut down state and the shape
When variable is less than first deformation quantity, a timing circuit 251 of motor control circuit 25 starts timing.It is at this point, noticeable
It is that during timing circuit 251 is in timing and motor control circuit 25 handles an at least sensing signal during timing
SFWhen obtaining the deformation quantity more than first deformation quantity, motor control circuit 25 stops the timing of timing circuit 251 and resets meter
When circuit 251, until sensing signal SFWhen reacting the deformation quantity less than first deformation quantity, that is, restart timing circuit 251
Carry out timing.
In another embodiment of the invention, sensor 23 be a pressure sensor, a pressure switch, a touch-switch,
One thin film switch or a limit switch.When motor control circuit 25 handles an at least sensing signal SFObtain the external force
During more than first external force, motor control circuit 25 controls fan motor 24 to shut down state into one.When fan motor 24
When shut down state and the external force are less than first external force, a timing circuit 251 of motor control circuit 25 is opened
Beginning timing.At this time, it is notable that during timing circuit 251 is in timing and motor control circuit 25 is during timing
Handle an at least sensing signal SFWhen obtaining the external force more than first external force, motor control circuit 25 stops timing electricity
The timing on road 251 simultaneously resets timing circuit 251, until when sensing signal reacts the external force less than first external force, i.e., it is heavy
The new timing circuit that starts carries out timing.
In an embodiment of the present invention, if 251 timing of timing circuit is more than (to represent a first time (for example, 10 seconds)
The deformation quantity detected within the first time is smaller than first deformation quantity, confirms that abnormality has excluded), then motor control
Circuit 25 controls fan motor 24 to leave the state that shuts down, that is, restarts motor 24 and operate.In another embodiment of the present invention
In, when 251 timing of timing circuit is more than the first time, (external force for representing to detect within the first time is less than
During first external force, confirm that abnormality has excluded), motor control circuit 25 controls fan motor 24 to leave the shape that shuts down
State, and restart fan motor 24.
Fig. 2 B are the schematic diagrames that an embodiment according to the invention represents fan assembly 21.In fig. 2b, sensor 23
It is arranged among fan assembly 21, and is electrically connected to motor control circuit (not shown).
Fig. 2 C are the cut-away views that an embodiment according to the invention realizes fan assembly 21.In the embodiment of Fig. 2 C
In, fan protection component 22 is a fan frame 220, and fan frame 220 has a support column 221.Support column 221 and sensing
Device 23 is all arranged at the inside of fan frame 220, and the support column 221 is the position setting of the corresponding sensor 23.Work as fan
When the external force 26 of device 21 makes the support column 221 touch sensor 23, which changes at least one sensing of output
Signal (for example, the voltage level of an at least sensing signal is promoted to high state (HI) by low state (LOW)).
Fig. 2 D are the cut-away views that another embodiment according to the invention realizes electronic device 2.In the implementation of Fig. 2 D
In example, the fan assembly 21 of electronic device 2 further includes a fan frame 220.Sensor 23 is arranged at the outer of fan frame 220
Shell.Fan frame 220 coats fan motor 24, and is arranged at fan protection component 22 (being in this present embodiment electronic device)
It is internal.In the embodiment of Fig. 2 D, corresponding 23 position of sensor in inside of fan protection component 22 more sets a triggering machine
Component 222.When the external force 26 that fan protection component 22 is born makes trigger mechanism part 222 touch sensor 23, sensing
Device 23 changes an at least sensing signal for output (for example, the voltage level of an at least sensing signal is promoted by low state (LOW)
To high state (HI)).
Fig. 2 E are the cut-away views that another embodiment according to the invention realizes electronic device 2.In the implementation of Fig. 2 E
In example, the configuration of electronic device 2 is approximately identical to the electronic device 2 of Fig. 2 D.Only difference is that the electronic device 2 of Fig. 2 E
Trigger mechanism part 222 without Fig. 2 D.In the embodiment of Fig. 2 E, when the external force 26 that fan protection component 22 is born
During more than first external force, the shell of fan protection component 22 generates a deformation (as shown in dotted line 27) and touches sensor
23, sensor 23 is made to change an at least sensing signal for output (for example, by the voltage level of an at least sensing signal by low state
(LOW) it is promoted to high state (HI)).
In another embodiment of the invention, electronic device 2 has fan frame 220 and its support column shown in Fig. 2 C simultaneously
Trigger mechanism part 222 on the inside of fan protection component 22 shown in 221 and Fig. 2 D, and with support column 221 and trigger mechanism part
222 corresponding two sensors 23.In this embodiment, as long as motor control circuit 25 learns the one inspection of two sensors 23
It is excessive (or the external force that fan protection component 22 is born is excessive) to measure the deformation quantity of fan protection component 22, horse
Fan motor 24 is controlled up to control circuit 25 into the state that shuts down.
Fig. 3 is the configuration diagram that an embodiment according to the invention realizes sensor 23.In the fig. 3 embodiment, can be with
Include 3 sensors 231,232,233 and be arranged at the shell of fan frame 220, and be placed in respectively compared with fan motor
24 flabellum 2 o'clock direction, 6 o'clock direction and 9 o'clock direction.Above-mentioned 3 positions are the shells of fan frame 220 in structure
On more fragile place.In addition, sensor 231-233 be also optionally provided at the position of most often bearing external force or
It is the position of deformation quantity maximum.For example, when electronic device 2 is a laptop, sensor 231-233 is optionally set
It puts in the lower section in the keyboard face of laptop.In addition, also it is contemplated that sensor 231-233 is arranged on fan frame 220
The position of shell deformation quantity maximum.For example, sensor 231 is arranged on to the centre of the shell of fan frame 220.The present invention is not only
This is defined in, depending on the quantity of sensor and placement position can be because of fan machines.In an embodiment of the present invention, motor control electricity
As long as road 25 learn the one of sensor 231-233 detect the deformation quantity of fan protection component 22 it is excessive (or fan protect
The external force that shield component 22 is born is excessive), motor control circuit 25 controls fan motor 24 to shut down into this
State.
Fig. 4 A are that an embodiment according to the invention realizes the fan motor 24 of electronic device 2 and motor control circuit 25
One block diagram.In the embodiment of Fig. 4 A, fan motor 24 includes a coil group 241.Motor control circuit 25 includes timer
Circuit 251, a pulse modulation (PWM) control circuit 252, a brake signal control circuit 253,254 1 prime of a logic circuit
255 and one coil switching circuitry 257 of driving circuit.One system end 20 of electronic device 2 is (for example, the centre of laptop
Reason device) it controls and is electrically connected to pwm control circuit 252.Sensor 23 is respectively and electrically connected to the system end of electronic device 2
20th, timer circuit 251, pwm control circuit 252 and brake signal control circuit 253.Timer circuit 251 receives sensing letter
Number SF, and it is respectively and electrically connected to sensor 23, pwm control circuit 252 and brake signal control circuit 253.Logic circuit 254
Pwm control circuit 252 and brake signal control circuit 253 are respectively and electrically connected to, and is received from pwm control circuit 252
One motor drive signal SPWMWith the brake signal S from brake signal control circuit 253Brake。
Fig. 4 B are that another embodiment according to the invention realizes the fan motor 24 of electronic device 2 and motor control circuit 25
A block diagram.In the embodiment of Fig. 4 B, timer circuit 251, pwm control circuit 252, the brake signal control electricity of Fig. 4 A
Road 253 and logic circuit 254 are integrated into together among a microprocessor 256；In other embodiment, above-mentioned timer circuit
251st, pwm control circuit 252, brake signal control circuit 253 and logic circuit 254 are integrated in logic circuit, simulation together
Integrated circuit, application-specific integrated circuit (ASIC), programmable gate array (FPGA) or digital signal processing chip (DSP
) etc. chip in the controller for realizing identical function.Therefore, the motor control circuit 25 of Fig. 4 B include pre-driver circuitry 255,
Microprocessor 256 and coil switching circuitry 257, fan motor 24 then include coil group 241.
Fig. 4 C are that another embodiment according to the invention realizes the fan motor 24 of electronic device 2 and motor control circuit 25
A block diagram.In figure 4 c, motor control circuit 25 only has logic circuit 254, pre-driver circuitry 255 and coil switching
Circuit 257.Motor control circuit 25 is only electrically connected to the system end 20 of electronic device 2 and fan motor 24, and does not connect electrically
It is connected to sensor 23.In the embodiment of Fig. 4 C, electronic device 2 is unified to receive sensing signal S by system end 20F, and according to sense
Survey signal SFSend motor drive signal SPWMWith brake signal SBrakeTo the logic circuit 254 of motor control circuit 25.
In embodiments of the present invention, electronic device 2 further includes a store media 28, and wherein store media 28 is connected to system
End 20.Store media 28 is a storage device, such as hard disk device, but the present invention is not limited to this.Store media 28 to
The record external force that the deformation quantity of fan protection component 22, fan protection component 22 are born under different time points
26th, the deformation quantity is more than the duration of first deformation quantity or external force 26 is more than duration of first external force etc.
Deng.The system end 20 of electronic device 2 learns the stress situation of fan assembly 21, Jin Ertong by the storage data of store media 28
Know motor control circuit 25 adjust threshold value (such as：It is stored in the first deformation quantity of store media, the first external force or when first
Between) size.The storage data that the store media 28 of electronic device 2 is recorded can use the fan that performs an analysis to shut down the ginseng of reason
Information is examined, also can be used as reference information of the designer of electronic device 2 when lower secondary design or during design for change.This exoelectron fills
2 system end 20 is put after the stress situation of fan assembly 21 is learnt, the user that can notify electronic device 2 is (such as logical
Know that its own force of user is improper), and then arrange the external force for removing electronic device 2.
In embodiments of the present invention, electronic device 2 is not limited to foregoing system end the control terminal of fan assembly 21
20th, motor control circuit 25, microprocessor 256 or logic circuit 254 are realized, also can be used Analogous Integrated Electronic Circuits, it is specific should
Phase is realized with integrated circuit (ASIC), programmable gate array (FPGA), digital signal processing chip (DSP chip) etc.
Same function.
Fig. 5 is that an embodiment according to the invention realizes sensing signal SF, motor drive signal SPWMWith brake signal SBrake
A sequence diagram.In the 5 embodiment of figure 5, sensing signal SFWith brake signal SBrakeIt is all logical signal, and motor driving letter
Number SPWMIt is a pwm signal.In time point t0 between time point t1, the control terminal of electronic device 2 (that is, it is aforementioned system end 20, micro-
Processor 256 or logic circuit 254) it receives and judges sensing signal SFLogic level be low state (LOW).At this point, electronics
The control terminal of device 2 sends motor drive signal SPWM, fan motor 24 is made to run well (that is, in an operating condition).
In time point t1, sensor 23 detects that the external force that fan protection component 22 born is more than this outside first
Power, and by sensing signal SFLogic level be promoted to high state (HI).The control terminal of electronic device 2 receives and judges sensing signal
SFLogic level be high state (HI).Then, the control terminal of electronic device 2 stops motor drive signal SPWM(also motor is driven
Dynamic signal SPWMSetting is to 0 or is pulled to low state (LOW)) to close coil switching circuitry 257, fan motor 24 is made to shut down.With
This simultaneously, the control terminal of electronic device 2 also can be by brake signal SBrakeHigh state (HI) is promoted to brake to fan motor 24.
In another embodiment of the present invention, the control terminal of electronic device 2 can also select a pair of of fan motor 24 in two ways and stop its fortune
Turn state.
In time point t2, sensor 23 detects the external force that fan protection component 22 is born and is less than this outside first
Power, sensor 23 is by sensing signal SFLogic level be pulled to low state (LOW).At this point, since the control terminal of electronic device 2 detects
To sensing signal SFAt low state (LOW), the control terminal of electronic device 2, which resets timing circuit 251 and starts timing, (that is, resets meter
When device and start timing), and by brake signal SBrakeIt is pulled to low state (LOW).
In time point t2 to (that is, one at the first time) during time point t3,251 timing of timing circuit be more than this first when
Between, the control terminal of electronic device 2 restarts fan motor 24 in time point t3.More particularly, in time point t3, electronics dress
The control terminal for putting 2 sends motor drive signal SPWM(motor drive signal SPWM) make fan motor 24 start run well (that is,
In an operating condition).
Fig. 6 is a flow chart of the control method that an embodiment according to the invention is realized for fan assembly.In step
In rapid S601, sensor 23 detects whether the external force that fan protection component 22 is born is more than first external force or wind
One deformation quantity of fan protection component 22 is more than one first deformation quantity, and (that is, whether sensor 23 triggers).If so, sensor 23 will
Sensing signal SFLogic level be promoted to high state, and enter step S602.In step S602, the control terminal of electronic device 2
Stop motor drive signal SPWM(also i.e. by motor drive signal SPWMSetting is to 0 or is pulled to low state), and by brake signal SBrake
Being promoted to high state makes fan motor 24 shut down.Enter step S603.
In step S603, the control terminal detection sensing signal S of electronic device 2FWhether low state is returned to.If into step
Rapid S604；Otherwise return to step S602.In step s 604, the control terminal of electronic device 2 resets timing circuit 251, and controls
Timing circuit 251 starts timing, enters step S605.
In step s 605, the control terminal detection sensing signal S of electronic device 2FWhether high state is returned to.If into step
Rapid S606；Otherwise enter step S607.In step S606, the control terminal control timing circuit 251 of electronic device 2 stops meter
When, and reset timing circuit 251.Then, step S603 is returned to.In step S607, the control terminal of electronic device 2, which will brake, to be believed
Number SBrakeLow state is pulled to, and sends motor drive signal SPWMFan motor 24 is made to start to run well.Then, step is returned to
S601。
Though the present invention is disclosed above with preferred embodiment so that those skilled in the art can be more clearly understood that the present invention
Content.It however, it will be understood by those skilled in the art that can be easily with the present invention as basis, design or modification process to them
And it operates different fan assemblies and carries out identical purpose using its electronic device and/or reach implementation presented here
The same advantage of example.Therefore protection scope of the present invention is when subject to appended as defined in claim.
Claims (16)
1. a kind of fan assembly, including：
One fan protection component；
One fan motor is arranged at the inside of the fan protection component；
One sensor, to detect a deformation of an external force or the fan protection component that the fan protection component is born
Amount, and corresponded to according to the external force or the deformation quantity and generate an at least sensing signal；And
One motor control circuit receives an at least sensing signal, wherein when the motor control circuit handles at least one sensing
When signal obtains the external force and is more than first deformation quantity more than one first external force or the deformation quantity, the motor control circuit
The fan motor is controlled to shut down state into one；
Wherein the fan motor shut down state and the external force be less than first external force or the deformation quantity be less than should
During the first deformation quantity, a timing circuit of the motor control circuit starts timing；And
Wherein when the timing circuit timing is more than a first time, which restarts fan motor progress
Operating.
2. fan assembly as described in claim 1, also comprising a store media, the store media is storing first shape
Variable, first external force or the first time and the shape to note down the fan protection component under different time points
The external force that variable, the fan protection component are born, the deformation quantity be more than first deformation quantity duration or
External force is more than the duration of first external force.
3. fan assembly as described in claim 1, wherein when the motor control circuit handles this at least within the first time
When one sensing signal obtains the external force and is more than first deformation quantity more than first external force or the deformation quantity, the motor control
Circuit processed stops and resets the timing circuit.
4. fan assembly as described in claim 1, wherein when the timing circuit timing is more than the first time, the motor control
Circuit processed restarts the fan motor.
5. fan assembly as described in claim 1, wherein the fan protection component are a fan frames, and the fan frame has
There is a support column；
Wherein support column and the sensor is the corresponding inside for being arranged at the fan frame；And
Wherein when the external force is more than first external force, which, which touches the sensor, makes the sensor change output
An at least sensing signal.
6. fan assembly as described in claim 1, the wherein motor control circuit are a microprocessor, a logic circuit, one
At Analogous Integrated Electronic Circuits, an application-specific integrated circuit (ASIC), a programmable gate array (FPGA) or a digital signal
Chip (DSP chip) is managed, and the fan motor is a single-phase motor, a two-phase motor or a three-phase motor.
7. fan assembly as described in claim 1, the wherein sensor are a pressure sensor, a distortion sensing device, a pressure
Power switch, a touch-switch, a thin film switch or a limit switch.
8. a kind of electronic device, including：
One fan protection component；
One sensor, to detect a deformation of an external force or the fan protection component that the fan protection component is born
Amount, and corresponded to according to the external force or the deformation quantity and generate an at least sensing signal；
One fan assembly, including：
One fan motor is arranged at the inside of the fan protection component；And
One motor control circuit receives an at least sensing signal, wherein when the motor control circuit handles at least one sensing
When signal obtains the external force and is more than first deformation quantity more than one first external force or the deformation quantity, the motor control circuit
The fan motor is controlled to shut down state into one；
Wherein the fan motor shut down state and the external force be less than first external force or the deformation quantity be less than should
During deformation quantity, a timing circuit of the motor control circuit starts timing；And
Wherein when the timing circuit timing is more than a first time, which restarts fan motor fortune
Turn.
9. electronic device as claimed in claim 8, the wherein fan assembly be also comprising a store media, the store media to
It stores first deformation quantity, first external force or the first time and is protected to note down the fan under different time points
It protects the external force, the deformation quantity that the deformation quantity, the fan protection component of component are born and is more than first deformation quantity
Duration or external force are more than the duration of first external force.
10. electronic device as claimed in claim 8, wherein when the motor control circuit handles this at least within the first time
When one sensing signal obtains the external force and is more than first deformation quantity more than first external force or the deformation quantity, the motor control
Circuit processed stops and resets the timing circuit.
11. fan assembly as claimed in claim 8, wherein when the timing circuit timing is more than the first time, the motor
Control circuit restarts the fan motor.
12. electronic device as claimed in claim 8, wherein the fan protection component are a fan frames, and the fan frame
With a support column；
Wherein support column and an at least sensor is the corresponding inside for being arranged at the fan frame；And
Wherein when the external force is more than first external force, which, which touches the sensor, makes the sensor change output
An at least sensing signal.
13. electronic device as claimed in claim 8 further includes a fan frame, the fan motor is coated, and is arranged at the wind
The inside of fan protection component, the wherein sensor are arranged at the shell of the fan frame, and the inside phase of the fan protection component
The corresponding sensor site more sets a trigger mechanism part；And
Wherein when the external force is more than first external force, which, which touches the sensor, makes sensor change defeated
At least sensing signal gone out.
14. electronic device as claimed in claim 8 further includes a fan frame, the fan motor is coated, and is arranged at the wind
The inside of fan protection component, wherein an at least sensor are arranged at the shell of the fan frame；And
Wherein when the external force is more than first external force, which, which touches the sensor, changes the sensor
An at least sensing signal for output.
15. fan assembly as claimed in claim 8, the wherein motor control circuit are a microprocessor, a logic circuit, one
At Analogous Integrated Electronic Circuits, an application-specific integrated circuit (ASIC), a programmable gate array (FPGA) or a digital signal
Chip (DSP chip) is managed, and the fan motor is a single-phase motor, a two-phase motor or a three-phase motor.
16. fan assembly as claimed in claim 8, the wherein sensor are a pressure sensor, a distortion sensing device, a pressure
Power switch, a touch-switch, a thin film switch or a limit switch.
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| CN108073252A true CN108073252A (en) | 2018-05-25 |
| CN108073252B CN108073252B (en) | 2019-11-29 |
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| CN114857068A (en) * | 2022-05-20 | 2022-08-05 | 联想(北京)有限公司 | Fan structure and electronic equipment |
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| Publication number | Publication date |
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| CN108073252B (en) | 2019-11-29 |
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