CN207098184U - Air conditioning for automobiles electronic speed regulation module - Google Patents
Air conditioning for automobiles electronic speed regulation module Download PDFInfo
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- CN207098184U CN207098184U CN201720389863.1U CN201720389863U CN207098184U CN 207098184 U CN207098184 U CN 207098184U CN 201720389863 U CN201720389863 U CN 201720389863U CN 207098184 U CN207098184 U CN 207098184U
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Abstract
The utility model discloses air conditioning for automobiles electronic speed regulation module, including radiator, socket and the cover plate to match with socket, the socket bottom is snapped onto on radiator, and pcb board and the metal-oxide-semiconductor, the Temperature protection that are electrically connected with the controller on pcb board are provided with the socket；Also include the fan speed regulation on-off circuit that electrically connect with the controller on pcb board, the fan speed regulation on-off circuit can be to the metal-oxide-semiconductor progress current regulation 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, life-span when avoiding Temperature protection from reducing its use because being continually fed into high current in overheat protector.
Description
Technical field
It the utility model is related to field of automobile air conditioner, and in particular to air conditioning for automobiles electronic speed regulation module.
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 itself and air blower are connected on into the same circuit, and the electricity at air blower both ends will be adjusted using the voltage divide function of itself
Pressure, realize 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, and this scheme cost is high, complex process, and this scheme can only carry out a Thermal protection, Thermal protection
Speed adjusting module soon fails after function is realized, can not 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 by the way that when high current is by Temperature protection, Temperature protection itself, which can generate heat, to cause fusing-off temperature to be forbidden, while temperature
Degree insurance is passed through the service life reduction that can cause Temperature protection after high current for a long time.
Utility model content
The utility model purpose is to provide air conditioning for automobiles electronic speed regulation module, and recovery temperature insurance is serially connected in control loop
In, avoid Temperature protection from continuing through high current in overheat protector and be damaged.
The utility model 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 to match with socket
Socket bottom is snapped onto on radiator, and pcb board and the MOS electrically connected with the controller on pcb board are provided with the socket
Pipe, Temperature protection；Also include the fan speed regulation on-off circuit that electrically connect with the controller on pcb board, blower fan tune during work
Fast on-off circuit can carry out current regulation to metal-oxide-semiconductor；The metal-oxide-semiconductor includes R poles, D poles, G poles and S poles, the R poles of metal-oxide-semiconductor
Electrically connected with the controller output end on pcb board, with connecing power supply, the positive pole of blower fan connects positive source, blower fan for the S poles of metal-oxide-semiconductor
The D poles of negative pole and metal-oxide-semiconductor connect, and the G poles of metal-oxide-semiconductor electrically connect with the controller input on pcb board；The fan speed regulation switch
Circuit includes moment surge impact protection circuit and pressure release circuit, and the moment surge impact protection circuit respectively with metal-oxide-semiconductor
G poles and the connection of S poles, and the moment surge impact protection circuit implements function such as：When control signal is by extraneous wave
When gushing impulsive disturbance, protect metal-oxide-semiconductor G poles not breakdown with S poles and damage；The metal-oxide-semiconductor D poles moment surge impact protection circuit
Connected with the D poles of metal-oxide-semiconductor and G poles, and the metal-oxide-semiconductor D poles moment surge impact protection circuit implements function such as：Absorb and work as
Counter electromotive force caused by fan operation or surge impact；The pressure release circuit connects with the G poles of metal-oxide-semiconductor and S poles, and described
The following function of pressure release circuit realiration：When no control voltage or Temperature protection are in overheat protector state, the G of metal-oxide-semiconductor is extremely electric
Pressure is delivered to S poles and released, to realize shut-off metal-oxide-semiconductor.In the prior art, the fan speed regulation of air conditioning for automobiles passes through speed governing mould
Block is realized, but can produce certain caloric value when speed adjusting module works, when caloric value reaches to a certain degree, speed governing mould
Temperature protection in block can directly disconnect, to avoid continuous high temperature to the impaired of other parts of automobile；And two kinds of traditional mistakes
Thermal protection mode, a kind of scheme speed adjusting module after heat protection function realization soon fails, and another scheme can then cause
Temperature protection influences the service life of its own because being continually fed into high current, and for such defect, applicant designs one kind
New automobile air conditioner speed regulation module, on the premise of keeping temperature insurance is connected in control loop, Temperature protection is avoided in excess temperature
Life-span when its use is reduced because being continually fed into high current during protection；Specifically, metal-oxide-semiconductor during use, Temperature protection, blower fan and
Controller on pcb board forms a closed-loop path, and after the positive pole of blower fan connection 12V power supplys, its other end is electrically connected with metal-oxide-semiconductor
It is logical, and fan speed regulation on-off circuit is provided with the closed-loop path where metal-oxide-semiconductor, due to fans in series in the closed circuit, together
When metal-oxide-semiconductor be one by grid voltage control electronic switch, under different voltage, the conducting degree of metal-oxide-semiconductor is different, makes
Obtain according to voltage divider principle in fan speed regulation on-off circuit, total voltage is equal to the voltage and fan speed regulation on-off circuit point of blower fan point
Voltage sum, blower fan is inductive load, and when operating voltage is relatively low, alternating current is just small, causes average operating current with regard to small,
The rotating speed of blower fan is relatively low, conversely, when the voltage of fan speed regulation on-off circuit point is higher, conducting degree is just high, and blower fan is adjusted
The voltage that fast on-off circuit is got reduces, and alternating current rheology is big, causes average operating current to become big, the corresponding rotating speed of blower fan just increases
Height, finally realize the speed governing to blower fan.
In use, one closed-loop path of controller composition on metal-oxide-semiconductor, Temperature protection, blower fan and pcb board, and blower fan
Positive pole connection positive source after, 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 difference
G poles under the voltage of S poles, metal-oxide-semiconductor conducting degree is different, shows D poles in the closed circuit to the voltage drop between S poles
It is different, so that the voltage drop at the load both ends in circuit loop is different；When metal-oxide-semiconductor G pole tensions are relatively low, degree is turned on
It is relatively low, that is to say, that D poles to voltage drop U between S polesDSIt is former according to partial pressure because fans in series is in metal-oxide-semiconductor loop with regard to height
Reason, UPower supply=UBlower fan+UDS, so blower fan both end voltage UBlower fanWith regard to low, because blower fan is inductive load, when operating voltage is relatively low, fill
Electric current is just small, causes average operating current with regard to small, and rotation speed of fan, conversely, when metal-oxide-semiconductor G pole tensions are higher, turns on journey with regard to low
Spend higher, UDSWith regard to low, so blower fan both end voltage UBlower fanWith regard to height, charging current is just big, causes average operating current with regard to big, blower fan
Rotating speed is just high, therefore, by controlling metal-oxide-semiconductor G poles finally to realize the speed governing purpose to blower fan 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, 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 can be carried out to the D pole tensions of metal-oxide-semiconductor, controlled
After device receives feedback signal, control voltage is finely adjusted, the fixed conducting of finally make metal-oxide-semiconductor be under imposing a condition one
State, reach 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 ZD2Form 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 connect with S poles.Metal-oxide-semiconductor G poles moment surge impact protection circuit implements 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 also adjusts the rotating speed of blower fan positioned at changing outside air channel, during work by the reactance of itself, while the heat of itself is by wind
Take away；But due to the temperature change in the external world, lid surface can be caused to condense the globule, the globule can flow into when being more than a certain amount of
Inside socket, speed-regulating function is caused to fail；On the other hand, 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
L-shaped structure epoxy glue is formed and 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, the isolation area inside increase socket with the external world so that cannot be introduced into socket in the globule that lid surface condenses
Inside, to ensure the stability of the work of 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, prevent the steam in the external world from entering inside socket.
The utility model compared with prior art, has the following advantages and advantages：
1st, the utility model air conditioning for automobiles electronic speed regulation module, the controller on pcb board can control MOS in closed-loop path
Voltage output amount at pipe so that average operating current changes in closed-loop path；
2nd, the utility model air conditioning for automobiles electronic speed regulation module, Temperature protection are placed on the control of the controller on pcb board
Loop, the electric current in control loop is smaller, avoids Temperature protection and is continually fed into high current, with ensure Temperature protection will not because from
The heating of body and influence its operation precision, while avoid Temperature protection and be damaged by heavy current impact；
3rd, the utility model air conditioning for automobiles electronic speed regulation module, the control voltage of the controller output on pcb board, passes through
The G poles of 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, R4Can
Feedback output is carried out to the D pole tensions of metal-oxide-semiconductor, after controller receives feedback signal, control voltage is finely adjusted, finally made
The fixed conducting state that metal-oxide-semiconductor is under imposing a condition, reach stable wind speed setting state；
4th, the utility model air conditioning for automobiles electronic speed regulation module, the gap location formed between projection and groove set L-shaped
Structure epoxy glue, when cover plate and socket snapping, projection is formed to L-shaped structure epoxy glue and extruded, and structure epoxy glue will be prominent
The side wall that rises, the side wall of respective slot, bottom surface are bonded respectively for bottom surface, with extraneous isolation area inside increase socket, are made
Obtain the globule condensed in lid surface to cannot be introduced into inside socket, to ensure the stability of the work of socket electric elements inside.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the utility model embodiment, forms the one of the application
Part, the restriction to the utility model embodiment is not formed.In the accompanying drawings：
Fig. 1 is structural representation of the present utility model；
Fig. 2 is sectional view of the present utility model；
Fig. 3 is electrical schematic diagram of the present utility model；
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 purpose of this utility model, technical scheme and advantage is more clearly understood, with reference to embodiment and accompanying drawing,
The utility model is described in further detail, and exemplary embodiment of the present utility model and its explanation are only used for explaining this
Utility model, it is not intended as to restriction of the present utility model.
Embodiment 1
As shown in figures 1-4, the present embodiment includes radiator 3, socket 2 and the cover plate 1 to match 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 that is electrically connected with the controller on pcb board, wind during work
Machine speed-regulating switch circuit can carry out current regulation to metal-oxide-semiconductor；The metal-oxide-semiconductor 4 includes R poles, D poles, G poles and S poles, metal-oxide-semiconductor 4
R poles electrically connected with the controller output end on pcb board, with connecing power supply, the positive pole of blower fan connects positive source for the S poles of metal-oxide-semiconductor 4,
The negative pole of blower fan is connected with the D poles of metal-oxide-semiconductor 4, and the G poles of metal-oxide-semiconductor 4 electrically connect with the controller input on pcb board；The blower fan
Speed-regulating switch circuit includes moment surge impact protection circuit and pressure release circuit, and the moment surge impact protection circuit is distinguished
Connected with the G poles of metal-oxide-semiconductor 4 and S poles, and the moment surge impact protection circuit implements function such as：When control signal by
When being disturbed to extraneous surge impact, protect the G poles of metal-oxide-semiconductor 4 not breakdown with S poles and damage；The moment surge impact protection
Circuit connects with the D poles of metal-oxide-semiconductor and G poles, and the moment surge impact protection circuit implements function such as：Blower fan is worked as in absorption
Counter electromotive force caused by operation or surge impact；The pressure release circuit connects with the G poles of metal-oxide-semiconductor and S poles, and the pressure release
The following function of circuit realiration：When no control voltage or Temperature protection 7 are in overheat protector state, the G pole tensions of metal-oxide-semiconductor 4
It is delivered to S poles to be released, metal-oxide-semiconductor 4 is turned off to realize.
In the prior art, the fan speed regulation of air conditioning for automobiles is realized by speed adjusting module, but when speed adjusting module works
Certain caloric value can be produced, when caloric value reaches to a certain degree, the Temperature protection in speed adjusting module can directly disconnect, to keep away
Exempt from the impaired of speed adjusting module；And two kinds of traditional overtemperature protection modes, a kind of scheme speed adjusting module after heat protection function realization
Soon fail, and another scheme can then cause Temperature protection to influence the use longevity of its own because being continually fed into high current
Life, for such defect, applicant designs a kind of new automobile air conditioner speed regulation module, and keeping temperature insurance, which is connected on, to be controlled back
On the premise of on road, life-span when avoiding Temperature protection from reducing its use because being continually fed into high current in overheat protector；
Specifically, controller during use on metal-oxide-semiconductor 4, Temperature protection 7, blower fan and pcb board 5 forms 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, causes average operating current with regard to small, and 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, and the corresponding rotating speed of blower fan just increases, the final tune realized to blower fan
Speed.
In use, the controller on metal-oxide-semiconductor 4, Temperature protection 7, blower fan and pcb board 5 forms a closed-loop path, and
After the positive pole connection positive source of blower fan, 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,
To under the voltage of S poles, metal-oxide-semiconductor conducting degree is different, shows D poles in the closed circuit to the electricity between S poles for different G poles
Pressure drop is different, so that the voltage drop at the load both ends in circuit loop is different；When the G pole tensions of metal-oxide-semiconductor 4 are relatively low,
Conducting degree is relatively low, that is to say, that D poles to voltage drop U between S polesDSWith regard to height, because fans in series is in the loop of metal-oxide-semiconductor 4, root
According to voltage divider principle, UPower supply=UBlower fan+UDS, so blower fan both end voltage UBlower fanWith regard to low, because blower fan is inductive load, work as operating voltage
When relatively low, charging current is just small, causes average operating current with regard to small, and rotation speed of fan is with regard to low, conversely, when metal-oxide-semiconductor G pole tensions are higher
When, conducting degree is higher, UDSWith regard to low, so blower fan both end voltage UBlower fanWith regard to height, charging current is just big, causes average operating current
Just big, rotation speed of fan is just high, therefore, by controlling the G poles of metal-oxide-semiconductor 4 finally to be realized to different voltages between S poles to blower fan
Speed governing purpose.
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, R4The D pole tensions of metal-oxide-semiconductor 4 can be carried out feeding back defeated
Go out, after controller receives 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, voltage stabilizing two level
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 ZD2Form the D poles moment surge impact protection circuit of metal-oxide-semiconductor 4, electric capacity
C1There is 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 connect with S poles.The G poles moment surge impact protection circuit of metal-oxide-semiconductor 4 implements 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, put down
Sliding filter capacitor C2With zener diode ZD2Negative pole, zener diode ZD1Positive pole it is in parallel, zener diode ZD1Negative pole
It is connected with the S poles of metal-oxide-semiconductor 4.F in pressure release circuit1For Temperature protection 7, smothing filtering electric capacity C2To the input electricity of the G poles of metal-oxide-semiconductor 4
Pressure carries out smothing filtering, when the temperature of metal-oxide-semiconductor 4 is higher than F1Protection temperature when, disconnect control voltage automatically, the G of metal-oxide-semiconductor 4 is extremely electric
Pressure (junction capacity produces 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
Degree recovers 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 are embedded in the gap with the structure epoxy glue 8 that the gap matches.Electronic speed regulation module is located at automobile sky
Transfer in air channel, interface section also adjusts the rotating speed of blower fan, while itself positioned at changing outside air channel, during work by the reactance of itself
Heat be carried away by the wind；But due to the temperature change in the external world, 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；On the other hand, 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 formed to L-shaped structure epoxy glue 8 and extruded, 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, to ensure the stability of the work of 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 distributes itself impacts to pcb board, reduces the damaged probability of each electronic component in 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 the steam in the external world from entering in socket 2
Portion.
Above-described embodiment, the purpose of this utility model, technical scheme and beneficial effect are entered
One step describes in detail, should be understood that and the foregoing is only specific embodiment of the present utility model, is not used to limit
Determine the scope of protection of the utility model, it is all within the spirit and principles of the utility model, any modification for being made, equally replace
Change, improve, should be included within the scope of protection of the utility model.
Claims (6)
1. air conditioning for automobiles electronic speed regulation module, including radiator (3), socket (2) and the cover plate (1) to match with socket (2),
Socket (2) bottom is snapped onto on radiator (3), it is characterised in that：Be provided with the socket (2) pcb board (5) and with
Metal-oxide-semiconductor (4), the Temperature protection (7) of controller electrical connection on pcb board (5)；Also include being electrically connected with the controller on pcb board (5)
The fan speed regulation on-off circuit connect, the fan speed regulation on-off circuit can carry out electric current tune to the metal-oxide-semiconductor (4) during work
Section；The metal-oxide-semiconductor (4) includes R poles, D poles, G poles and S poles, R poles and the controller output end on pcb board (5) of metal-oxide-semiconductor (4)
Electrical connection, with connecing power supply, the positive pole of blower fan connects positive source, and the negative pole of blower fan connects with the D poles of metal-oxide-semiconductor (4) for the S poles of metal-oxide-semiconductor (4)
Connect, the G poles of metal-oxide-semiconductor (4) electrically connect with the controller input on pcb board (5)；The fan speed regulation on-off circuit includes moment
Surge impact protection circuit and pressure release circuit, and the moment surge impact protection circuit G poles with metal-oxide-semiconductor (4) and S respectively
Pole connects, and the moment surge impact protection circuit implements function such as：When control signal is disturbed by extraneous surge impact
When, protect metal-oxide-semiconductor G poles not breakdown with S poles；The pressure release circuit connects with the G poles of metal-oxide-semiconductor (4) and S poles, and described lets out
Volt circuit implements function such as：When no control voltage or Temperature protection (7) are in overheat protector state, the G of metal-oxide-semiconductor (4)
Pole tension is delivered to S poles and released, to realize shut-off metal-oxide-semiconductor (4).
2. air conditioning for automobiles electronic speed regulation module according to claim 1, it is characterised in that：Also include resistance R4, resistance R4's
One end connects 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).
3. air conditioning for automobiles electronic speed regulation module according to claim 1, 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), the D poles protection circuit bag of metal-oxide-semiconductor (4)
Include the resistance R of interconnection3With electric capacity C1, zener diode ZD1, zener diode ZD2, electric capacity C1Connect with the D poles of metal-oxide-semiconductor (4)
It is logical, resistance R3With zener diode ZD2Positive pole connection, zener diode ZD2Negative pole and zener diode ZD1Positive pole connect
Connect, 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 resistor R1、
Zener diode ZD1, zener diode ZD2And smothing filtering electric capacity C2, the biasing resistor R1With zener diode ZD2Just
Pole connection, zener diode ZD2Negative pole and zener diode ZD1Positive pole connection, zener diode ZD1Negative pole and metal-oxide-semiconductor
(4) S poles connection, smothing filtering electric capacity C2It is connected with metal-oxide-semiconductor G poles and S poles.
4. air conditioning for automobiles electronic speed regulation module according to claim 1, it is characterised in that：The pressure release circuit includes biasing
Resistance R1, voltage bleeder resistance R2, zener diode ZD1, zener diode ZD2And smothing filtering electric capacity C2, the temperature guarantor
Danger (7) and the G poles of metal-oxide-semiconductor (4), biasing resistor R1Series connection, biasing resistor R1With zener diode ZD2Positive pole connection, voltage stabilizing two
Level pipe ZD2Negative pole and zener diode ZD1Positive pole connection, voltage bleeder resistance R2With zener diode ZD2Negative pole, steady
Press diode ZD1Positive pole it is in parallel, smothing filtering electric capacity C2With zener diode ZD2Negative pole, zener diode ZD1Positive pole
Parallel connection, zener diode ZD1Negative pole be connected with the S poles of metal-oxide-semiconductor (4).
5. air conditioning for automobiles electronic speed regulation module according to claim 1, it is characterised in that：In the socket (2) upper surface
On be provided with groove, be conformed with the cover plate (1) lower surface, the length of the projection in the vertical direction is less than the groove
Groove depth, and the width of the projection in the horizontal direction be less than the groove groove width；When cover plate (1) and socket (2) clamping
When, projection is placed in groove, and the L-shaped gap in a section is formed between projection and groove, and profile matches with the gap
The embedded gap of structure epoxy glue (8) in.
6. air conditioning for automobiles electronic speed regulation module according to claim 1, it is characterised in that：In the socket (2) and radiating
The junction of device (3) outer wall passes through high temperature resistant silica gel sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720389863.1U CN207098184U (en) | 2017-04-13 | 2017-04-13 | Air conditioning for automobiles electronic speed regulation module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720389863.1U CN207098184U (en) | 2017-04-13 | 2017-04-13 | Air conditioning for automobiles electronic speed regulation module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207098184U true CN207098184U (en) | 2018-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720389863.1U Expired - Fee Related CN207098184U (en) | 2017-04-13 | 2017-04-13 | Air conditioning for automobiles electronic speed regulation module |
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| Country | Link |
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| CN (1) | CN207098184U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106953581A (en) * | 2017-04-13 | 2017-07-14 | 成都高新区华汇实业有限公司 | Arrangements for speed regulation for blower for vehicle air conditioning |
| CN110337226A (en) * | 2019-08-07 | 2019-10-15 | 佛山闽雄机电科技有限公司 | It is a kind of can isolation radiating electromagnetic heater power supply |
-
2017
- 2017-04-13 CN CN201720389863.1U patent/CN207098184U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106953581A (en) * | 2017-04-13 | 2017-07-14 | 成都高新区华汇实业有限公司 | Arrangements for speed regulation for blower for vehicle air conditioning |
| CN110337226A (en) * | 2019-08-07 | 2019-10-15 | 佛山闽雄机电科技有限公司 | It is a kind of can isolation radiating electromagnetic heater power supply |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180313 Termination date: 20200413 |