CN106953581A - Arrangements for speed regulation for blower for vehicle air conditioning - Google Patents
Arrangements for speed regulation for blower for vehicle air conditioning Download PDFInfo
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- CN106953581A CN106953581A CN201710241080.3A CN201710241080A CN106953581A CN 106953581 A CN106953581 A CN 106953581A CN 201710241080 A CN201710241080 A CN 201710241080A CN 106953581 A CN106953581 A CN 106953581A
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- 230000033228 biological regulation Effects 0.000 title claims abstract description 44
- 238000004378 air conditioning Methods 0.000 title claims abstract description 21
- 239000004065 semiconductor Substances 0.000 claims abstract description 133
- 230000004224 protection Effects 0.000 claims abstract description 85
- 230000001012 protector Effects 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims description 14
- 229920006335 epoxy glue Polymers 0.000 claims description 12
- 239000000741 silica gel Substances 0.000 claims description 8
- 229910002027 silica gel Inorganic materials 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 230000015556 catabolic process Effects 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 230000007547 defect Effects 0.000 abstract description 3
- 230000006870 function Effects 0.000 description 14
- 229960001866 silicon dioxide Drugs 0.000 description 7
- 239000008186 active pharmaceutical agent Substances 0.000 description 6
- 230000000087 stabilizing effect Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 101100478187 Arabidopsis thaliana MOS4 gene Proteins 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/02—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using supply voltage with constant frequency and variable amplitude
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/1216—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for AC-AC converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/042—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage comprising means to limit the absorbed power or indicate damaged over-voltage protection device
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P2201/00—Indexing scheme relating to controlling arrangements characterised by the converter used
- H02P2201/01—AC-AC converter stage controlled to provide a defined AC voltage
Abstract
The invention discloses the arrangements for speed regulation for blower for vehicle air conditioning, including radiator, socket and the cover plate matched with socket, the socket bottom is snapped onto on radiator, provided with pcb board and the metal-oxide-semiconductor electrically connected with the controller on pcb board, Temperature protection in the socket；Also include the fan speed regulation on-off circuit electrically connected with the controller on pcb board, the fan speed regulation on-off circuit can carry out electric current regulation to the metal-oxide-semiconductor during work.Two kinds of traditional overtemperature protection modes; a kind of scheme speed adjusting module after heat protection function realization soon fails; and another scheme can then cause Temperature protection to influence the service life of its own because being continually fed into high current; for such defect; applicant designs a kind of new automobile air conditioner speed regulation module; on the premise of keeping temperature insurance is connected in control loop, it is to avoid Temperature protection reduces when it is used the life-span because being continually fed into high current in overheat protector.
Description
Technical field
The present invention relates to field of automobile air conditioner, and in particular to the arrangements for speed regulation for blower for vehicle air conditioning.
Background technology
At present, air conditioning for automobiles turns into the indispensable important accessory of automotive interior, existing automobile air-conditioning fan speed regulation mould
Block operation principle is that it is connected on into the same circuit with air blower, and the electricity at air blower two ends will be adjusted using the voltage divide function of itself
Pressure, realizes that air blower adjusts rotating speed.When the caloric value of speed adjusting module itself reaches to a certain degree, pass through the temperature in speed adjusting module
Degree insurance is fused, to ensure the safety of vehicle；Traditional Thermal protection mode has two kinds：The first is by chip internal
Temperature sensor realizes protection, this scheme high cost, complex process, and this scheme can only carry out a Thermal protection, Thermal protection
Speed adjusting module soon fails after function is realized, it is impossible to work on, and the cost re-replaced is higher；Second is by molten
Disconnected outside major loop Temperature protection realizes protection, but this scheme Temperature protection is arranged on major loop, and Temperature protection, which has, to be continued
High current pass through, when high current is by Temperature protection, Temperature protection itself, which can generate heat, can cause fusing-off temperature to be forbidden, while warm
Degree insurance is passed through after high current for a long time can cause the service life reduction of Temperature protection.
The content of the invention
Present invention aims at the arrangements for speed regulation provided for blower for vehicle air conditioning, Temperature protection can recover to be serially connected in control
In loop processed, it is to avoid Temperature protection continues through high current in overheat protector and is damaged.
The present invention is achieved through the following technical solutions：
It is described for the arrangements for speed regulation of fan of car air conditioner, including radiator, socket and the cover plate matched with socket
Socket bottom is snapped onto on radiator, provided with pcb board and the MOS electrically connected with the controller on pcb board in the socket
Pipe, Temperature protection；Also include the fan speed regulation on-off circuit electrically connected with the controller on pcb board, the blower fan is adjusted during work
Fast on-off circuit can carry out electric current regulation to metal-oxide-semiconductor.In the prior art, the fan speed regulation of air conditioning for automobiles by speed adjusting module come
Realize, but certain caloric value can be produced when speed adjusting module works, when caloric value reaches to a certain degree, in speed adjusting module
Temperature protection can directly disconnect, to avoid continuous high temperature to the impaired of other parts of automobile；And two kinds of traditional overheats are protected
A kind of shield mode, scheme speed adjusting module after heat protection function realization soon fails, and another scheme can then cause temperature
Insurance influences the service life of its own because being continually fed into high current, for such defect, and applicant designs a kind of new
Automobile air conditioner speed regulation module, on the premise of keeping temperature insurance is connected in control loop, it is to avoid Temperature protection is in overheat protector
Shi Yin is continually fed into high current and reduced when it is used the life-span；
Specifically, controller when using on metal-oxide-semiconductor, Temperature protection, blower fan and pcb board constitutes a closed-loop path,
And after the positive pole connection 12V power supplys of blower fan, its other end is electrically connected with metal-oxide-semiconductor, and is provided with the closed-loop path where metal-oxide-semiconductor
Fan speed regulation on-off circuit, while metal-oxide-semiconductor is an electronics controlled by grid voltage due to fans in series in the closed circuit
Switch, under different voltage, the conducting degree of metal-oxide-semiconductor is different so that former according to partial pressure in fan speed regulation on-off circuit
Reason, total voltage is equal to the voltage of blower fan point and the voltage sum of fan speed regulation on-off circuit point, and blower fan is inductive load, works as work
When voltage is relatively low, alternating current is just small, causes average operating current just small, the rotating speed of blower fan is relatively low, conversely, when blower fan is adjusted
When the voltage of fast on-off circuit point is higher, conducting degree is just high, and the voltage that fan speed regulation on-off circuit is got reduces, alternating current
Become big, cause average operating current to become big, the corresponding rotating speed of blower fan just increases, and finally realizes the speed governing to blower fan.
The metal-oxide-semiconductor includes R poles, D poles, G poles and S poles, and R poles and the controller output end on pcb board of metal-oxide-semiconductor are electrically connected
Connect, with connecing power supply, the positive pole of blower fan connects positive source, and the negative pole of blower fan and the D poles of metal-oxide-semiconductor are connected, metal-oxide-semiconductor for the S poles of metal-oxide-semiconductor
G poles are electrically connected with the controller input on pcb board；The fan speed regulation on-off circuit includes moment surge impact protection circuit
With pressure release circuit, and the moment surge protection circuit connected with the G poles and S poles of metal-oxide-semiconductor respectively, and the moment surge is protected
Protection circuit is implemented function such as：When control signal is disturbed by extraneous surge impact, protect metal-oxide-semiconductor G poles not breakdown with S poles
And damage；The metal-oxide-semiconductor D poles moment surge impact protection circuit is connected with the D poles and G poles of metal-oxide-semiconductor, and the metal-oxide-semiconductor D poles
Moment surge impact protection circuit is implemented function such as：Absorb the counter electromotive force or surge impact produced when fan operation；Institute
Pressure release circuit is stated to connect with the G poles and S poles of metal-oxide-semiconductor, and the following function of pressure release circuit realiration：When no control voltage or
When Temperature protection is in overheat protector state, the G pole tensions of metal-oxide-semiconductor are delivered to S poles and released, to realize shut-off metal-oxide-semiconductor.Make
Controller on used time, metal-oxide-semiconductor, Temperature protection, blower fan and pcb board constitutes a closed-loop path, and the positive pole of blower fan is connected
After positive source, its other end is electrically connected with D poles in metal-oxide-semiconductor, and S poles are connected with power supply in metal-oxide-semiconductor, in different G poles to S poles
Voltage under, metal-oxide-semiconductor conducting degree is different, and it is different to the voltage drop between S poles to show D poles in the closed circuit, from
And make the voltage drop for loading two ends in circuit loop different；When metal-oxide-semiconductor G pole tensions are relatively low, conducting degree is relatively low, also
It is to say, D poles to voltage drop U between S polesDSIt is just high, because fans in series is in metal-oxide-semiconductor loop, according to voltage divider principle, UPower supply=UBlower fan
+UDS, so blower fan both end voltage UBlower fanJust low, because blower fan is inductive load, when operating voltage is relatively low, charging current is just small,
Cause average operating current just small, rotation speed of fan is just low, conversely, when metal-oxide-semiconductor G pole tensions are higher, conducting degree is higher, UDSJust
It is low, so blower fan both end voltage UBlower fanJust high, charging current is just big, causes average operating current just big, rotation speed of fan is just high, because
This, by controlling metal-oxide-semiconductor G poles to different voltages between S poles, the final speed governing purpose realized to blower fan.
Also include resistance R4, resistance R4One end connected with the D poles of the metal-oxide-semiconductor 4, resistance R4The other end and the MOS
The R poles connection of pipe.The control voltage of controller output on pcb board, is input at Temperature protection, then by the G poles of metal-oxide-semiconductor
Into metal-oxide-semiconductor G poles, so as to control the conducting state of metal-oxide-semiconductor, R4Feedback output, control can be carried out to the D pole tensions of metal-oxide-semiconductor
Device is received after feedback signal, and control voltage is finely adjusted, the fixed conducting of finally make metal-oxide-semiconductor be under imposing a condition one
State, reaches stable wind speed setting state.
The moment surge impact protection circuit includes the D poles protection circuit of metal-oxide-semiconductor and the G poles protection circuit of metal-oxide-semiconductor, institute
State the resistance R that metal-oxide-semiconductor D poles moment surge impact protection circuit includes being connected with each other3With electric capacity C1, zener diode ZD1, voltage stabilizing
Diode ZD2, electric capacity C1Connected with the D poles of metal-oxide-semiconductor, resistance R3With zener diode ZD2Positive pole connection, zener diode ZD2
Negative pole and zener diode ZD1Positive pole connection, zener diode ZD1Negative pole and metal-oxide-semiconductor S poles connect.Resistance R3With electricity
Hold C1, zener diode ZD1, zener diode ZD2Constitute metal-oxide-semiconductor D poles moment surge impact protection circuit, electric capacity C1With every
The straight-through effect handed over, therefore there is preferable protective effect, C to moment surge impact1Capacitive reactance add R3Impedance be composed in series
The biasing resistor of mu balanced circuit, final voltage stabilizing value V=VZD1+ 0.3V, wherein 0.3V are ZD2Forward voltage drop, the electricity after this voltage stabilizing
Pressure is added to the G poles of metal-oxide-semiconductor, and metal-oxide-semiconductor moment is opened, and the moment surge impact voltage of the D poles of metal-oxide-semiconductor is released to by final realize
Power supply；
The moment surge impact protection circuit includes biasing resistor R1, zener diode ZD1, zener diode ZD2And
Smothing filtering electric capacity C2, the biasing resistor R1With zener diode ZD2Positive pole connection, zener diode ZD2Negative pole with it is steady
Press diode ZD1Positive pole connection, zener diode ZD1Negative pole and metal-oxide-semiconductor S poles connection, smothing filtering electric capacity C2With MOS
Pipe G poles and the connection of S poles.Metal-oxide-semiconductor G poles moment surge impact protection circuit is implemented function such as：When control signal is by extraneous wave
When gushing impulsive disturbance, protect metal-oxide-semiconductor G poles not breakdown.
The pressure release circuit includes voltage bleeder resistance R2, zener diode ZD1, zener diode ZD2And smothing filtering
Electric capacity C2, voltage bleeder resistance R2With zener diode ZD2Positive pole connection, zener diode ZD2Negative pole and zener diode
ZD1Positive pole connection, voltage bleeder resistance R2With zener diode ZD2Negative pole, zener diode ZD1 positive pole it is in parallel, smoothly
Filter capacitor C2With zener diode ZD2Negative pole, zener diode ZD1Positive pole it is in parallel, zener diode ZD1Negative pole with
The S poles connection of metal-oxide-semiconductor.F in pressure release circuit1For Temperature protection, smothing filtering electric capacity C2The input voltage of metal-oxide-semiconductor G poles is put down
Sliding filtering, when metal-oxide-semiconductor temperature is higher than F1Protection temperature when, disconnect control voltage automatically, metal-oxide-semiconductor G pole tensions (grid source during conducting
Between junction capacity produce) pass through R2Released to S poles, reach the purpose for rapidly switching off metal-oxide-semiconductor, when temperature is recovered to F1Open
During dynamic temperature, control voltage is reconnected, metal-oxide-semiconductor is opened.
Groove is provided with the socket upper surface, is conformed with the cover plate lower surface, the projection is in vertical side
Upward length is less than the groove depth of the groove, and the width of the projection in the horizontal direction is less than the groove width of the groove；
When cover plate and socket clamping, projection is placed in groove, the L-shaped gap in a section is formed between projection and groove, outside
Shape is embedded in the gap with the structure epoxy glue that the gap matches.Electronic speed regulation module is located in automobile air conditioner inlet air road,
Interface section, which is located at, to be changed outside air channel, the rotating speed of blower fan is also adjusted during work by the reactance of itself, while the heat of itself is by wind
Take away；But it is due to extraneous temperature change, lid surface can be caused to condense the globule, the globule can be flowed into when being more than a certain amount of
Inside socket, speed-regulating function is caused to fail；In this regard, applicant sets the groove of mutual cooperation and dashed forward on cover plate and socket
Rise, while the gap location formed between projection and groove sets L-shaped structure epoxy glue, when cover plate is with socket snapping, projection
The formation of L-shaped structure epoxy glue is extruded, and the side wall of respective slot, bottom are distinguished in the side wall of projection, bottom surface by structure epoxy glue
Face is bonded, with extraneous isolation area inside increase socket so that the globule condensed in lid surface cannot be introduced into socket
Inside, with the stability for the work for ensureing socket electric elements inside.
Pass through high temperature resistant silica gel sealing in the junction of the socket and radiator outer wall.High temperature resistant silica gel can be at 350 DEG C
Its stability is kept in the environment of left and right, on the premise of radiator normal conduction heat, it is ensured that between socket and radiator
Sealing property, prevents that the steam in the external world from entering inside socket.
The present invention compared with prior art, has the following advantages and advantages：
1st, the controller that the present invention is used on the arrangements for speed regulation of blower for vehicle air conditioning, pcb board can control closed-loop path
Voltage output amount at middle metal-oxide-semiconductor so that average operating current changes in closed-loop path；
2nd, the present invention is filled for the speed governing of blower for vehicle air conditioning, and Temperature protection is placed on the control of the controller on pcb board
Electric current in loop processed, control loop is smaller, it is to avoid Temperature protection is continually fed into high current, to ensure that Temperature protection will not be because
The heating of itself and influence its operation precision, be damaged while avoiding Temperature protection by heavy current impact；
3rd, the control voltage for the controller output that the present invention is used on the arrangements for speed regulation of blower for vehicle air conditioning, pcb board, leads to
The G poles for crossing metal-oxide-semiconductor are input at Temperature protection, subsequently into the G poles of metal-oxide-semiconductor, so as to control the conducting state of metal-oxide-semiconductor, R4Energy
Enough D pole tensions to metal-oxide-semiconductor carry out feedback output, and controller receives after feedback signal, control voltage is finely adjusted, finally
A fixed conducting state for making metal-oxide-semiconductor be under imposing a condition, reaches stable wind speed setting state；
4th, the present invention is used for the arrangements for speed regulation of blower for vehicle air conditioning, and the gap location formed between projection and groove is set
L-shaped structure epoxy glue, when cover plate is with socket snapping, projection is extruded the formation of L-shaped structure epoxy glue, and structure epoxy glue will
The side wall of projection, bottom surface are distinguished the side wall of respective slot, bottom surface and are bonded, with extraneous isolation area inside increase socket,
So that be cannot be introduced into the globule that lid surface condenses inside socket, with the stabilization for the work for ensureing socket electric elements inside
Property.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is structural representation of the invention；
Fig. 2 is sectional view of the invention；
Fig. 3 is electrical schematic diagram of the invention；
Fig. 4 is the local connection figure of cover plate and socket.
Mark and corresponding parts title in accompanying drawing：
1- cover plates, 2- sockets, 3- radiators, 4-MOS pipes, 5-PCB plates, 6- silicagel pads, 7- Temperature protections, 8- structure epoxies
Glue, 9- high temperature resistant silica gel.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment and its explanation of the invention is only used for explaining the present invention, does not make
For limitation of the invention.
Embodiment 1
As shown in figures 1-4, the present embodiment includes radiator 3, socket 2 and the cover plate 1 matched with socket 2, described to insert
2 bottoms of seat are snapped onto on radiator 3, are electrically connected in the socket 2 provided with pcb board 5 and with the controller on pcb board 5
Metal-oxide-semiconductor 4, Temperature protection 7；Also include the fan speed regulation on-off circuit electrically connected with the controller on pcb board, wind during work
Machine speed-regulating switch circuit can carry out electric current regulation to metal-oxide-semiconductor 4.In the prior art, the fan speed regulation of air conditioning for automobiles passes through speed governing
Module is realized, but can produce certain caloric value when speed adjusting module works, when caloric value reaches to a certain degree, speed governing
Temperature protection in module can directly disconnect, to avoid the impaired of speed adjusting module；And two kinds of traditional overtemperature protection modes, it is a kind of
Scheme speed adjusting module after heat protection function realization soon fails, and another scheme can then cause Temperature protection because persistently leading to
Enter high current and influence the service life of its own, for such defect, applicant designs a kind of new air conditioning for automobiles speed governing
Module, on the premise of keeping temperature insurance is connected in control loop, it is to avoid Temperature protection is in overheat protector because being continually fed into
High current and reduce when it is used the life-span；
Specifically, controller when using on metal-oxide-semiconductor 4, Temperature protection 7, blower fan and pcb board 5 constitutes one and closed back
Road, and after the positive pole of blower fan connection 12V power supplys, its other end is electrically connected with metal-oxide-semiconductor 4, and in the closed-loop path where metal-oxide-semiconductor 4
In be provided with fan speed regulation on-off circuit, while metal-oxide-semiconductor 4 is one by grid voltage control due to fans in series in the closed circuit
The electronic switch of system, under different voltage, the conducting degree of metal-oxide-semiconductor 4 is different so that the root in fan speed regulation on-off circuit
According to voltage divider principle, total voltage is equal to the voltage of blower fan point and the voltage sum of fan speed regulation on-off circuit point, and blower fan is negative for perception
Carry, when operating voltage is relatively low, alternating current is just small, cause average operating current just small, the rotating speed of blower fan is relatively low, instead
It, when the voltage of fan speed regulation on-off circuit point is higher, conducting degree is just high, and the voltage that fan speed regulation on-off circuit is got subtracts
Small, alternating current rheology is big, causes average operating current to become big, the corresponding rotating speed of blower fan just increases, the final tune realized to blower fan
Speed.
The metal-oxide-semiconductor 4 includes R poles, D poles, G poles and S poles, the R poles of metal-oxide-semiconductor 4 and the controller output end electricity on pcb board
Connection, with connecing power supply, the positive pole of blower fan connects positive source, and the negative pole of blower fan is connected with the D poles of metal-oxide-semiconductor 4, MOS for the S poles of metal-oxide-semiconductor 4
The G poles of pipe 4 are electrically connected with the controller input on pcb board；The fan speed regulation on-off circuit is protected including moment surge impact
Protection circuit and pressure release circuit, and the moment surge protection circuit connects with the G poles and S poles of metal-oxide-semiconductor 4 respectively, and the wink
Between surge protection circuit implement function such as：When control signal is disturbed by extraneous surge impact, protect metal-oxide-semiconductor 4 G poles with
S poles are not breakdown and damage；The moment surge impact protection circuit is connected with the D poles and G poles of metal-oxide-semiconductor, and the moment
Surge impact protection circuit is implemented function such as：Absorb the counter electromotive force or surge impact produced when fan operation；It is described to let out
Volt circuit is connected with the G poles and S poles of metal-oxide-semiconductor, and the following function of pressure release circuit realiration：When no control voltage or temperature
When insurance 7 is in overheat protector state, the G pole tensions of metal-oxide-semiconductor 4 are delivered to S poles and released, to realize shut-off metal-oxide-semiconductor 4.Make
Controller on used time, metal-oxide-semiconductor 4, Temperature protection 7, blower fan and pcb board 5 constitutes a closed-loop path, and the positive pole of blower fan connects
After logical positive source, its other end is electrically connected with D poles in metal-oxide-semiconductor, and S poles are connected with power supply in metal-oxide-semiconductor, in different G poles to S
Under the voltage of pole, metal-oxide-semiconductor conducting degree is different, and it is different to the voltage drop between S poles to show D poles in the closed circuit,
So that the voltage drop at the load two ends in circuit loop is different；When the G pole tensions of metal-oxide-semiconductor 4 are relatively low, conducting degree compared with
It is low, that is to say, that D poles to voltage drop U between S polesDSIt is just high, because fans in series is in the loop of metal-oxide-semiconductor 4, according to voltage divider principle,
UPower supply=UBlower fan+UDS, so blower fan both end voltage UBlower fanIt is just low, because blower fan is inductive load, when operating voltage is relatively low, charging
Electric current is just small, causes average operating current just small, rotation speed of fan is just low, conversely, when metal-oxide-semiconductor G pole tensions are higher, turning on degree
It is higher, UDSIt is just low, so blower fan both end voltage UBlower fanJust high, charging current is just big, causes average operating current just big, blower fan turns
Speed is just high, therefore, and the speed governing purpose to blower fan is finally realized in the G poles by controlling metal-oxide-semiconductor 4 to different voltages between S poles.
Also include resistance R4, resistance R4One end connected with the D poles of the metal-oxide-semiconductor 4, resistance R4The other end and the MOS
The R poles connection of pipe.The control voltage of controller output on pcb board 5, is input at Temperature protection, so by the G poles of metal-oxide-semiconductor 4
Enter the G poles of metal-oxide-semiconductor 4 afterwards, so as to control the conducting state of metal-oxide-semiconductor, R4Feedback can be carried out to the D pole tensions of metal-oxide-semiconductor 4 defeated
Go out, controller is received after feedback signal, control voltage be finely adjusted, finally make metal-oxide-semiconductor 4 be in impose a condition under one
Fixed conducting state, reaches stable wind speed setting state.
The moment surge impact protection circuit includes the D poles protection circuit of metal-oxide-semiconductor 4 and the G poles protection circuit of metal-oxide-semiconductor 4,
The D poles moment surge impact protection circuit of the metal-oxide-semiconductor 4 includes the resistance R being connected with each other3With electric capacity C1, zener diode ZD1、
Zener diode ZD2, electric capacity C1Connected with the D poles of MOS4 pipes, resistance R3With zener diode ZD2Positive pole connection, two grades of voltage stabilizing
Pipe ZD2Negative pole and zener diode ZD1Positive pole connection, zener diode ZD1Negative pole and metal-oxide-semiconductor S poles connect.Resistance
R3With electric capacity C1, zener diode ZD1, zener diode ZD2Constitute the D poles moment surge impact protection circuit of metal-oxide-semiconductor 4, electric capacity
C1Effect with separated by direct communication, therefore there is preferable protective effect, C to moment surge impact1Capacitive reactance add R3Impedance
It is composed in series the biasing resistor of mu balanced circuit, final voltage stabilizing value V=VZD1+ 0.3V, wherein 0.3V are ZD2Forward voltage drop, this is steady
Voltage after pressure is added to the G poles of metal-oxide-semiconductor 4, and metal-oxide-semiconductor moment is opened, final to realize the moment surge impact of the D poles of metal-oxide-semiconductor 4
Voltage is with being released to power supply；
The moment surge impact protection circuit includes biasing resistor R1, zener diode ZD1, zener diode ZD2And
Smothing filtering electric capacity C2, the biasing resistor R1With zener diode ZD2Positive pole connection, zener diode ZD2Negative pole with it is steady
Press diode ZD1Positive pole connection, zener diode ZD1Negative pole be connected with the S poles of metal-oxide-semiconductor 4, smothing filtering electric capacity C2With MOS
The G poles of pipe 4 and the connection of S poles.The G poles moment surge impact protection circuit of metal-oxide-semiconductor 4 is implemented function such as：When control signal by
During extraneous surge impact interference, protect the G poles of metal-oxide-semiconductor 4 not breakdown.
The pressure release circuit includes voltage bleeder resistance R2, zener diode ZD1, zener diode ZD2And smothing filtering
Electric capacity C2, voltage bleeder resistance R2With zener diode ZD2Positive pole connection, zener diode ZD2Negative pole and zener diode
ZD1Positive pole connection, voltage bleeder resistance R2With zener diode ZD2Negative pole, zener diode ZD1 positive pole it is in parallel, smoothly
Filter capacitor C2With zener diode ZD2Negative pole, zener diode ZD1Positive pole it is in parallel, zener diode ZD1Negative pole with
The S poles connection of metal-oxide-semiconductor 4.F in pressure release circuit1For Temperature protection 7, smothing filtering electric capacity C2To the input voltage of the G poles of metal-oxide-semiconductor 4
Smothing filtering is carried out, when the temperature of metal-oxide-semiconductor 4 is higher than F1Protection temperature when, control voltage, the G pole tensions of metal-oxide-semiconductor 4 are disconnected automatically
(junction capacity is produced between grid source during conducting) passes through R2Released to S poles, reach the purpose for rapidly switching off metal-oxide-semiconductor 4, work as temperature
Recover to F1Start-up temperature when, reconnect control voltage, metal-oxide-semiconductor is made a call to 4 and opened.
The present embodiment is provided with groove on the upper surface of socket 2, is conformed with the lower surface of cover plate 1, described prominent
The length for playing in the vertical direction is less than the groove depth of the groove, and the width of the projection in the horizontal direction is less than described recessed
The groove width of groove；When cover plate 1 and 2 clamping of socket, projection is placed in groove, and it is in L that a section is formed between projection and groove
The gap of shape, profile is embedded in the gap with the structure epoxy glue 8 that the gap matches.It is empty that electronic speed regulation module is located at automobile
Transfer in air channel, interface section, which is located at, to be changed outside air channel, also adjusts the rotating speed of blower fan during work by the reactance of itself, while itself
Heat be carried away by the wind；But it is due to extraneous temperature change, the sweating water pearl of cover plate 1 can be caused, the globule is more than a certain amount of
When can flow into inside socket 2, cause speed-regulating function to fail；In this regard, applicant is set mutually on cover plate 1 and socket 2
The groove and projection of cooperation, while the gap location that is formed between projection and groove sets L-shaped structure epoxy glue 8, cover plate 1 with
During 2 snapping of socket, projection is extruded the formation of L-shaped structure epoxy glue 8, and structure epoxy glue 8 distinguishes the side wall of projection, bottom surface
The side wall of respective slot, bottom surface are bonded, the inside of increase socket 2 and extraneous isolation area so that condensed on the surface of cover plate 1
The globule cannot be introduced into inside socket 2, with the stability for the work for ensureing the electric elements inside of socket 2.
Preferably, being additionally provided with silicagel pad 6 between the Temperature protection 7 and pcb board 5, silicagel pad 6 can avoid temperature
The heat that insurance 7 is distributed itself is impacted to pcb board, the damaged probability of each electronic component in reduction socket 2.
Preferably, high temperature resistant silica gel 9 can keep its stability in the environment of 350 DEG C or so, normally passed in radiator 3
On the premise of heat conduction amount, it is ensured that the sealing property between socket 2 and radiator 3, prevent that the steam in the external world from entering in socket 2
Portion.
Preferably, Temperature protection 7 is while metal-oxide-semiconductor 4 are adjusted, itself can produce certain heat, and the heat can shadow
The accuracy that the control metal-oxide-semiconductor 4 of Temperature protection 7 is opened and closed is rung, therefore, Temperature protection 7 is fixed on to the upper surface of radiator 3 so that
Its own heat produced is quickly outwards transmitted by radiator 3, to reduce the error of the action of Temperature protection 7.
Above-described embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modifications, equivalent substitutions and improvements done etc. all should be included
Within protection scope of the present invention.
Claims (7)
1. for the arrangements for speed regulation of blower for vehicle air conditioning, including radiator (3), socket (2) and match with socket (2)
Cover plate (1), socket (2) bottom is snapped onto on radiator (3), it is characterised in that：Pcb board is provided with the socket (2)
(5) metal-oxide-semiconductor (4) that and with the controller on pcb board (5) electrically connects, Temperature protection (7)；Also include with pcb board (5)
The fan speed regulation on-off circuit of controller electrical connection, the fan speed regulation on-off circuit can enter to the metal-oxide-semiconductor (4) during work
Row electric current is adjusted.
2. the arrangements for speed regulation according to claim 1 for blower for vehicle air conditioning, it is characterised in that：The metal-oxide-semiconductor (4)
Including R poles, D poles, G poles and S poles, the R poles of metal-oxide-semiconductor (4) are electrically connected with the controller output end on pcb board (5), metal-oxide-semiconductor (4)
S poles with connecing power supply, the positive pole of blower fan connects positive source, and the negative pole of blower fan is connected with the D poles of metal-oxide-semiconductor (4), the G of metal-oxide-semiconductor (4)
Pole is electrically connected with the controller input on pcb board (5)；The fan speed regulation on-off circuit includes moment surge impact and protects electricity
Road and pressure release circuit, and the moment surge protection circuit connects with the G poles and S poles of metal-oxide-semiconductor (4) respectively, and the moment
Surge impact protection circuit is implemented function such as：When control signal is disturbed by extraneous surge impact, protection metal-oxide-semiconductor G poles and S
Pole is not breakdown；The pressure release circuit is connected with the G poles and S poles of metal-oxide-semiconductor (4), and the following function of pressure release circuit realiration：
When no control voltage or Temperature protection (7) are in overheat protector state, the G pole tensions of metal-oxide-semiconductor (4) are delivered to the progress of S poles
Release, to realize shut-off metal-oxide-semiconductor (4).
3. the arrangements for speed regulation according to claim 2 for blower for vehicle air conditioning, it is characterised in that：Also include resistance R4,
Resistance R4One end connected with the D poles of the metal-oxide-semiconductor (4), resistance R4The other end connected with the R poles of the metal-oxide-semiconductor (4).
4. the arrangements for speed regulation according to claim 2 for blower for vehicle air conditioning, it is characterised in that：The moment surge
Impact protection circuit includes the D poles protection circuit of metal-oxide-semiconductor (4) and the G poles protection circuit of metal-oxide-semiconductor (4), and the D poles of metal-oxide-semiconductor (4) are protected
Protection circuit includes the resistance R being connected with each other3With electric capacity C1, zener diode ZD1, zener diode ZD2, electric capacity C1With metal-oxide-semiconductor (4)
D poles connection, resistance R3With zener diode ZD2Positive pole connection, zener diode ZD2Negative pole and zener diode ZD1's
Positive pole is connected, zener diode ZD1Negative pole be connected with the S poles of metal-oxide-semiconductor (4)；The G poles protection circuit of metal-oxide-semiconductor (4) includes biasing
Resistance R1, zener diode ZD1, zener diode ZD2And smothing filtering electric capacity C2, the biasing resistor R1With zener diode
ZD2Positive pole connection, zener diode ZD2Negative pole and zener diode ZD1Positive pole connection, zener diode ZD1Negative pole
Be connected with the S poles of metal-oxide-semiconductor (4), smothing filtering electric capacity C2It is connected with metal-oxide-semiconductor G poles and S poles.
5. the arrangements for speed regulation according to claim 2 for blower for vehicle air conditioning, it is characterised in that：The pressure release circuit
Including biasing resistor R1, voltage bleeder resistance R2, zener diode ZD1, zener diode ZD2And smothing filtering electric capacity C2, institute
State G poles, the biasing resistor R of Temperature protection (7) and metal-oxide-semiconductor (4)1Series connection, biasing resistor R1With zener diode ZD2Positive pole connect
Connect, zener diode ZD2Negative pole and zener diode ZD1Positive pole connection, voltage bleeder resistance R2With zener diode ZD2
Negative pole, zener diode ZD1Positive pole it is in parallel, smothing filtering electric capacity C2With zener diode ZD2Negative pole, zener diode
ZD1Positive pole it is in parallel, zener diode ZD1Negative pole be connected with the S poles of metal-oxide-semiconductor (4).
6. the arrangements for speed regulation according to claim 1 for blower for vehicle air conditioning, it is characterised in that：In the socket
(2) groove is provided with upper surface, is conformed with the cover plate (1) lower surface, the length of the projection in the vertical direction is small
In the groove depth of the groove, and the width of the projection in the horizontal direction is less than the groove width of the groove；When cover plate (1) is with inserting
Seat (2) clamping when, projection is placed in groove, between projection and groove formed the L-shaped gap in a section, profile and should between
In the embedded gap of structure epoxy glue (8) that gap matches.
7. the arrangements for speed regulation according to claim 1 for blower for vehicle air conditioning, it is characterised in that：In the socket
(2) junction with radiator (3) outer wall passes through high temperature resistant silica gel sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710241080.3A CN106953581B (en) | 2017-04-13 | 2017-04-13 | Speed regulation device for blower for vehicle air conditioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710241080.3A CN106953581B (en) | 2017-04-13 | 2017-04-13 | Speed regulation device for blower for vehicle air conditioning |
Publications (2)
| Publication Number | Publication Date |
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| CN106953581A true CN106953581A (en) | 2017-07-14 |
| CN106953581B CN106953581B (en) | 2019-10-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710241080.3A Active CN106953581B (en) | 2017-04-13 | 2017-04-13 | Speed regulation device for blower for vehicle air conditioning |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109688759A (en) * | 2017-10-18 | 2019-04-26 | 上海拜骋电器有限公司 | Switching device and electric tool with it |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201075817Y (en) * | 2007-08-31 | 2008-06-18 | 保定三伊电力电子有限公司 | Series connection high voltage bridge arm having voltage equalizing protection |
| CN204628042U (en) * | 2015-04-01 | 2015-09-09 | 浙江毅力汽车空调有限公司 | Automotive air blowers speed control system |
| CN205335819U (en) * | 2015-10-29 | 2016-06-22 | 程春 | A speed governing module and vehicle air conditioner air -blower for protecting brush DC motor |
| CN207098184U (en) * | 2017-04-13 | 2018-03-13 | 成都高新区华汇实业有限公司 | Air conditioning for automobiles electronic speed regulation module |
-
2017
- 2017-04-13 CN CN201710241080.3A patent/CN106953581B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201075817Y (en) * | 2007-08-31 | 2008-06-18 | 保定三伊电力电子有限公司 | Series connection high voltage bridge arm having voltage equalizing protection |
| CN204628042U (en) * | 2015-04-01 | 2015-09-09 | 浙江毅力汽车空调有限公司 | Automotive air blowers speed control system |
| CN205335819U (en) * | 2015-10-29 | 2016-06-22 | 程春 | A speed governing module and vehicle air conditioner air -blower for protecting brush DC motor |
| CN207098184U (en) * | 2017-04-13 | 2018-03-13 | 成都高新区华汇实业有限公司 | Air conditioning for automobiles electronic speed regulation module |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109688759A (en) * | 2017-10-18 | 2019-04-26 | 上海拜骋电器有限公司 | Switching device and electric tool with it |
| CN109688759B (en) * | 2017-10-18 | 2024-04-09 | 上海拜骋电器有限公司 | Switch device and electric tool with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106953581B (en) | 2019-10-01 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
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Denomination of invention: Speed regulating device for automobile air conditioner blower Effective date of registration: 20201029 Granted publication date: 20191001 Pledgee: Chengdu SME financing Company Limited by Guarantee Pledgor: CHENGDU HIGH-TECH ZONE HUAHUI Co.,Ltd. Registration number: Y2020980007359 |
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Date of cancellation: 20220812 Granted publication date: 20191001 Pledgee: Chengdu SME financing Company Limited by Guarantee Pledgor: CHENGDU HIGH-TECH ZONE HUAHUI CO.,LTD. Registration number: Y2020980007359 |
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Denomination of invention: Speed regulating device for automotive air conditioning blower Effective date of registration: 20230320 Granted publication date: 20191001 Pledgee: Chengdu SME financing Company Limited by Guarantee Pledgor: CHENGDU HIGH-TECH ZONE HUAHUI CO.,LTD. Registration number: Y2023510000075 |
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Date of cancellation: 20231102 Granted publication date: 20191001 Pledgee: Chengdu SME financing Company Limited by Guarantee Pledgor: CHENGDU HIGH-TECH ZONE HUAHUI CO.,LTD. Registration number: Y2023510000075 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Speed regulating device for automotive air conditioning blower Granted publication date: 20191001 Pledgee: Chengdu SME financing Company Limited by Guarantee Pledgor: CHENGDU HIGH-TECH ZONE HUAHUI CO.,LTD. Registration number: Y2024980000337 |