CN102538381B - Refrigerator and ventilation door driving logic control device, system and method thereof - Google Patents
Refrigerator and ventilation door driving logic control device, system and method thereof Download PDFInfo
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- CN102538381B CN102538381B CN201210024518XA CN201210024518A CN102538381B CN 102538381 B CN102538381 B CN 102538381B CN 201210024518X A CN201210024518X A CN 201210024518XA CN 201210024518 A CN201210024518 A CN 201210024518A CN 102538381 B CN102538381 B CN 102538381B
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Abstract
The invention discloses a ventilation door driving logic control device for a refrigerator, which comprises an enabling module, an enabling terminal, a first driving module, a first control terminal, a second driving module and a second control terminal, wherein the enabling module and the enabling terminal, the first driving module and the second driving module are respectively connected to energize for the ventilation door driving logic control device, the first driving module is connected with the first control terminal, and drives a first group of coils of a motor and controls the direction of electric current of the first group of coils through a first control signal, the second driving module is connected with the second control terminal, is used to drive a second group of coils of the motor to lead the direction of the electric current of the second group of coils to be opposite to the direction of the electric current of the first group of coils through a second control signal, and the two groups of coils are orthogonal each other. The purpose of controlling a ventilation door is achieved finally by controlling the direction of the electric current in the two groups of coils of a ventilation door motor. The ventilation door driving logic control device greatly reduces cost, and is higher in reliability. The invention further discloses a ventilation door driving control system for the refrigerator, a refrigerator with the ventilation door driving control system and a ventilation door driving control method.
Description
Technical field
The present invention relates to refrigeration plant manufacturing technology field, particularly a kind of refrigerator that drives control method and have this system for the ventilation door driving logic control device on refrigerator, air door driving control system, air door.
Background technology
Along with the raising of people's living standard, the refrigeration plants such as refrigerator have become the necessity in people's daily life.Wind cooling refrigerator utilizes air to freeze, and high temperature air is flowed through built-in evaporimeter when (separating with the refrigerator inwall), and because air themperature is high, evaporator temperature is low, heat exchange directly occurs for both, and the temperature of air will reduce.Simultaneously, Quilt with air conditioning is blown into refrigerator.Wind cooling refrigerator is exactly by this continuous endless form, reduces the temperature of refrigerator.Because wind cooling refrigerator has frost-free, the freezing advantage such as evenly, so wind cooling refrigerator has obtained and is widely used.
The shortcoming of prior art is that the wind cooling refrigerator manufacturing cost is higher, makes it become the bottleneck that wind cooling refrigerator is popularized gradually.
Summary of the invention
Purpose of the present invention is intended to solve at least one of above-mentioned technological deficiency.
For this reason, first purpose of the present invention is to provide a kind of ventilation door driving logic control device be applied on refrigerator, and this device production cost is lower and reliability is high.Second purpose of the present invention is to provide a kind of air door driving control system be applied on refrigerator.The 3rd purpose of the present invention is to provide a kind of refrigerator with the air door driving control system.The 4th purpose of the present invention is to provide a kind of air door that is applied to refrigerator to drive control method.
For achieving the above object, the embodiment of first aspect present invention discloses a kind of ventilation door driving logic control device of refrigerator, comprising: the first control end, be used to exporting the first control signal; The second control end, be used to exporting the second control signal; The first driver module, the input of described the first driver module is connected with described the first control end, for according to first group of coil of described the first control signal drive motors and control the sense of current of described first group of coil, wherein, described motor is for driving opening and/or cutting out of described air door; The second driver module, the input of described the second driver module is connected with described the second control end, for according to described the second control signal, driving second group of coil of described motor and control the sense of current of described second group of coil so that the current opposite in direction of the sense of current of described second group of coil and described first group of coil, wherein, described first group of coil and described second group of coil are mutually orthogonal; Enable Pin, for the output enable signal; And enable module, described enable module is connected respectively with described Enable Pin, described the first driver module and described the second driver module, under the control of described enable signal, described the first driver module and described the second driver module being powered on.
The ventilation door driving logic control device of the refrigerator that the embodiment of the present invention provides, realize by directly to two coils on motor stator, applying respectively the different directions electric current control that rotor is rotated.Described ventilation door driving logic control device is by adopting the driving logic control circuit that discrete component is built to realize the control to the air door of refrigerator, thereby greatly reduces production costs, and can improve the reliability of device.
In one embodiment of the invention, when the enable signal of Enable Pin output was high level, this enable module powered on to the first driver module and the second driver module.
Wherein, enable module comprises: the first resistance, and an end of this resistance is connected with Enable Pin; The second resistance, an end of this resistance is connected with the other end of the first resistance, and the other end ground connection of above-mentioned the second resistance; The first triode, the base stage of this triode is connected with the other end of the first resistance and an end of the second resistance, the grounded emitter of above-mentioned the first triode, colelctor electrode is connected with the second driver module with the first driver module respectively.
In one embodiment of the invention, the first driver module comprises: the 3rd resistance, and an end of this resistance is connected with the first control end; The 4th resistance, an end of this resistance is connected with the other end of the 3rd resistance, other end ground connection; The 5th resistance, an end of this resistance is connected with the first control end; The 6th resistance, an end of this resistance is connected with the other end of the 5th resistance, other end ground connection; The second triode, the base stage of this triode is connected with an end of the 6th resistance, the grounded emitter of above-mentioned the second triode; The 3rd triode, the base stage of this triode is connected with the colelctor electrode of the second triode; The 4th triode, the colelctor electrode of this triode is connected with the colelctor electrode of the 3rd triode by the 7th resistance; The 5th triode, the base stage of this triode is connected with the base stage of the 4th triode by the 8th resistance; The 6th triode, the colelctor electrode of this triode is connected with the colelctor electrode of the 5th triode by the 9th resistance, and emitter stage is connected with the emitter stage of the 3rd triode, and base stage is connected with an end of the 4th resistance.In addition, an end of above-mentioned first group of coil is connected with the 8th resistance, and the other end is connected with the colelctor electrode of the 4th triode.
Thus, the first driver module drives the function of first group of coil of described motor by adopting lower-cost device to realize, saved cost.
In one embodiment of the invention, the second driver module comprises: the tenth resistance, and an end of this resistance is connected with the second control end; The 11 resistance, an end of this resistance is connected with the other end of the tenth resistance, other end ground connection; The 12 resistance, an end of this resistance is connected with the second control end; The 13 resistance, an end of this resistance is connected with the other end of the 12 resistance, other end ground connection; The 7th triode, the base stage of this triode is connected with an end of the 11 resistance, grounded emitter; The 8th triode, the base stage of this triode is connected with the colelctor electrode of the 7th triode; The 9th triode, the colelctor electrode of this triode is connected with the colelctor electrode of the 8th triode by the 14 resistance; The tenth triode, the base stage of this triode is connected with the base stage of the 9th triode by the 15 resistance; The 11 triode, the colelctor electrode of this triode is connected with the colelctor electrode of the tenth triode by the 16 resistance, and emitter stage is connected with the emitter stage of the 6th triode with the emitter stage of the 3rd triode respectively, and base stage is connected with an end of the 13 resistance.In addition, an end of above-mentioned second group of coil is connected with the 15 resistance, and the other end is connected with the base stage of the 9th triode by the 17 resistance.
In like manner, the second driver module is also by adopting lower-cost device to realize the function of second group of coil of drive motors, having saved cost.
Second aspect present invention embodiment discloses a kind of driving control system of air door for refrigerator, comprising: air door; Control the motor that described air door rotates; Ventilation door driving logic control device, move to control air door for drive motors; And control device, this control device is connected with ventilation door driving logic control device, for the air door original state is set, and judgement is in predetermined period, whether the action step number of air door arrives target step number, if so, stop the air door action, otherwise above-mentioned ventilation door driving logic control device continues to adjust the action of air door until its action step number reaches target step number.
The driving control system of the air door for refrigerator according to the embodiment of the present invention, by adopting the driving logic control circuit that discrete component is built, realize the control to the air door of refrigerator, circuit is simple and be easy to control, and no longer needs to increase extra chip, has effectively reduced production cost.
In one embodiment of the invention, described predetermined period is the 3-4 millisecond.
In one embodiment of the invention, described control device arranges the original state of air door, and the state that air door namely is set is followed successively by open mode and closed condition.
In one embodiment of the invention, after described control device does not also arrive target step number for the action step number at the judgement air door, detect the current state of air door, and control according to the current state of air door the action that above-mentioned ventilation door driving logic control device is adjusted air door.
In third aspect present invention embodiment, disclose a kind of refrigerator, comprised the air door driving control system that second aspect present invention embodiment provides, the mode of operation simple possible of this refrigerator.
In fourth aspect present invention embodiment, disclose a kind of air door for refrigerator and driven control method, comprised the steps:
The original state of air door is set;
Whether the action step number that judges air door in predetermined period arrives target step number, if so, stops the air door action, otherwise utilizes above-mentioned ventilation door driving logic control device to adjust the action of air door until its action step number reaches target step number.
According to the air door for refrigerator of the embodiment of the present invention, drive control method, control mode is simple, and its function implements controlled more flexibly.
The aspect that the present invention adds and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.
The accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage will become from the following description of the accompanying drawings of embodiments and obviously and easily understand, wherein:
Fig. 1 is the structural representation according to the ventilation door driving logic control device of the refrigerator of the embodiment of the present invention;
Fig. 2 is the circuit diagram according to the ventilation door driving logic control device of the refrigerator of the embodiment of the present invention;
Fig. 3 is the structure chart according to the driving control system of the air door for refrigerator of the embodiment of the present invention;
Fig. 4 is the schematic diagram according to the refrigerator of the embodiment of the present invention;
Fig. 5 drives the flow chart of control method according to an embodiment of the invention for the air door of refrigerator;
Fig. 6 is the air door initialization flowchart according to the embodiment of the present invention; With
Fig. 7 drives the flow chart of control method in accordance with another embodiment of the present invention for the air door of refrigerator.
The specific embodiment
Below describe embodiments of the invention in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label means same or similar element or the element with identical or similar functions from start to finish.Below by the embodiment be described with reference to the drawings, be exemplary, only be used to explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " vertically ", " laterally ", " on ", orientation or the position relationship of the indications such as D score, 'fornt', 'back', " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward " be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, rather than indicate or imply that the device of indication or element must have specific orientation, construct and operation with specific orientation, therefore can not be interpreted as limitation of the present invention.
In description of the invention, it should be noted that, unless otherwise prescribed and limit, term " installation ", " being connected ", " connection " should be done broad understanding, for example, can be mechanical connection or electrical connection, can be also the connection of two element internals, can be directly to be connected, and also can indirectly be connected by intermediary, for the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term.
Below with reference to Fig. 1 and Fig. 2, the ventilation door driving logic control device according to the refrigerator of the embodiment of the present invention is described.
As shown in Figure 1, above-mentioned ventilation door driving logic control device comprises enable module 201, the first driver module 202, the second driver module 203, Enable Pin (Damper-Ctrl) 204, the first control end (Damper-A) 205 and the second control end (Damper-B) 206.Wherein, Enable Pin (Damper-Ctrl) 204, for the output enable signal, is connected with enable module 201.Enable module 201 is connected with the second driver module 203 with the first driver module 202 respectively, for the control by enable signal, the first driver module 202 and the second driver module 203 is powered on.The first control end (Damper-A) 205 is be used to exporting the first control signal.The second control end (Damper-B) 206 is be used to exporting the second control signal.The input of the first driver module 202 is connected with the first control end 205, for according to the first control signal, controlling output A+ and the A-of the first driver module 202, realizes driving first group of loop A of damper motor M0
And control first group of loop A
The sense of current.The input of the second driver module 203 is connected with the second control end 206, for according to the second control signal, controlling output B+ and the B-of the second driver module 203, realizes driving second group of coil B of damper motor M0
And control second group of coil B
The sense of current.Above-mentioned two groups of outputs are controlled air door D0 by the driving to damper motor M0.
In an embodiment of the present invention, first group of loop A
With second group of coil B
Mutually orthogonal, and second group of coil B
The sense of current and first group of loop A
Current opposite in direction.Therefore, just can realize the control to rotor by the control to the first control end 205 and the second control end 206, thereby further realize the control to air door.Particularly, for example, when first group of loop A
The sense of current be forward, and second group of coil B
The sense of current while being reverse, due to homopolar-repulsion, thereby the principle that heteropole is inhaled is mutually controlled the rotor forward rotation and is opened air door.In this embodiment, so-called " forward " refers to that electric current flow to from A
So-called " oppositely " refer to electric current from
Flow to A.On the contrary, when first group of loop A
The sense of current be oppositely, and second group of coil B
The sense of current while being forward, due to homopolar-repulsion, thereby the principle that heteropole is inhaled is mutually controlled rotor and is rotated backward and close air door.
Therefore, can find out from the above description, the present invention is skillfully constructed, can be directly by controlling first group of loop A
With second group of coil B
On the sense of current realize to control motor steering, and then drive the air door open and/or closed, can greatly reduce manufacturing cost.
Particularly, as shown in Figure 2, enable module 201 comprises: the first resistance R 605, the second resistance R 644 and the first triode Q603.One end of above-mentioned the first resistance R 605 is connected with Enable Pin 204; One end of above-mentioned the second resistance R 644 is connected with the other end of the first resistance R 605, and the other end ground connection of above-mentioned the second resistance R 644; The base stage of above-mentioned the first triode Q603 is connected with an end of the second resistance R 644 with the other end of the first resistance R 605, the grounded emitter of above-mentioned the first triode Q603, the colelctor electrode of the first triode Q603 are connected with the second driver module 203 with above-mentioned the first driver module 202 respectively.
Enable Pin 204 is power (power supply) end of ventilation door driving logic control device of the refrigerator of the embodiment of the present invention, for the output enable signal.In one embodiment of the invention, when Enable Pin 204 output high level enable signal, above-mentioned the first driver module 202 and the second driver module 203 just can power on.
The first driver module 202 comprises the 3rd resistance R 604, the 4th resistance R 643, the 5th resistance R 603, the 6th resistance R 642, the second triode Q602, the 3rd triode Q606, the 4th triode Q622, the 5th triode Q623, the 6th triode Q607, the 7th resistance R 622, the 8th resistance R 632, the 9th resistance R 623 and R633, R607, D603, D604, the components and parts such as D607, D608.One end of above-mentioned the 3rd resistance R 604 is connected with the first control end 205; R643 mono-end of above-mentioned the 4th resistance is connected with the other end of the 3rd resistance R 604, the other end ground connection of the 4th resistance R 643; One end of above-mentioned the 5th resistance R 603 is connected with the first control end 205; One end of above-mentioned the 6th resistance R 642 is connected with the other end of the 5th resistance R 603, the other end ground connection of the 6th resistance R 642; The base stage of above-mentioned the second triode Q602 is connected with an end of the 6th resistance R 642, the grounded emitter of the second triode Q602; The base stage of above-mentioned the 3rd triode Q606 is connected with the colelctor electrode of the second triode Q602, and the colelctor electrode of above-mentioned the 4th triode Q622 is connected with the colelctor electrode of the 3rd triode Q606 by the 7th resistance R 622; The base stage of above-mentioned the 5th triode Q623 is connected with the base stage of the 4th triode Q622 by the 8th resistance R 632; The colelctor electrode of above-mentioned the 6th triode Q607 is connected with the colelctor electrode of the 5th triode Q623 by the 9th resistance R 623, the emitter stage of the 6th triode Q607 is connected with the emitter stage of above-mentioned the 3rd triode Q606, and the base stage of the 6th triode Q607 is connected with an end of above-mentioned the 4th resistance R 643.Wherein, first group of loop A
An end with above-mentioned the 8th resistance R 632, be connected, the other end is connected with the colelctor electrode of above-mentioned the 4th triode Q622.The input of above-mentioned the first driver module 202 is connected with the first control end 205, for according to the first control signal, controlling output A+ and the A-of the first driver module 202.
The second driver module 203 comprises: the tenth resistance R the 602, the 11 resistance R the 641, the 12 resistance R the 601, the 13 resistance R 640, the 7th triode Q601, the 8th triode Q604, the 9th triode Q620, the tenth triode Q621, the 11 triode Q605, the 14 resistance R the 620, the 15 resistance R the 631, the 16 resistance R 621 and R606, R630, D601, D602, the components and parts such as D605, D606.One end of above-mentioned the tenth resistance R 602 is connected with the second control end 206; One end of above-mentioned the 11 resistance R 641 is connected with the other end of above-mentioned the tenth resistance R 602, the other end ground connection of the 11 resistance R 641; One end of above-mentioned the 12 resistance R 601 is connected with above-mentioned the second control end 206; One end of above-mentioned the 13 resistance R 640 is connected with the other end of above-mentioned the 12 resistance R 601, the other end ground connection of the 13 resistance R 640; The base stage of above-mentioned the 7th triode Q601 is connected with an end of the 11 resistance R 641, the grounded emitter of above-mentioned the 7th triode Q601; The base stage of above-mentioned the 8th triode Q604 is connected with the colelctor electrode of the 7th triode Q601, and the colelctor electrode of above-mentioned the 9th triode Q620 is connected with the colelctor electrode of the 8th triode Q604 by the 14 resistance R 620; The base stage of above-mentioned the tenth triode Q621 is connected with the base stage of the 9th triode Q620 by the 15 resistance R 631; The colelctor electrode of above-mentioned the 11 triode Q605 is connected with the colelctor electrode of the tenth triode Q621 by the 16 resistance, and the emitter stage of the 11 triode Q605 is connected with the emitter stage of the 6th triode Q607 with the emitter stage of above-mentioned the 3rd triode Q606 respectively, the base stage of above-mentioned the 11 triode Q605 is connected with an end of the 13 resistance R 640.Wherein, above-mentioned second group of coil B
An end with the 15 resistance R 631, be connected, the other end is connected with the base stage of the 9th triode Q620 by the 17 resistance R 630.The input of above-mentioned the second driver module 203 is connected with the second control end 206, for according to the second control signal, controlling output B+ and the B-of the second driver module 203.
In conjunction with Fig. 1 and Fig. 2, in one embodiment of the invention, when Enable Pin 204 is high level, by controlling above-mentioned the first control end (Damper-A) 205 and the high-low level input signal of the second control end (Damper-B) 206, with control the corresponding two groups of output terminals A of the first driver module 202 and the second driver module 203+, A-and B+, B-, and then control turning to and start-stop of damper motor M0, finally reach and control the purpose that air door D0 opens and/or closes.The true value of input signal and output port is as shown in table 1:
Table 1
With reference to the true value in table 1, when Damper-A and Damper-B input signal all are low level, two groups of output terminals A+, the A-two group loop A corresponding with B+, B-
And B
In current direction be respectively
Flow to A,
Flow to B, first group of loop A
The sense of current is oppositely, second group of coil B
The sense of current is also that oppositely rotor is failure to actuate; When Damper-A is input as low level signal, when Damper-B is input as high level signal, two groups of output terminals A+, the A-two group loop A corresponding with B+, B-
And B
In current direction be respectively
Flow to A, B flows to
First group of loop A
The sense of current is oppositely, second group of coil B
The sense of current is also forward, closes air door thereby rotor rotates backward;
When Damper-A is input as high level signal, when Damper-B is input as low level signal, two groups of output terminals A+, the A-two group loop A corresponding with B+, B-
And B
In current direction be respectively A and flow to
Flow to B, first group of loop A
The sense of current is forward, second group of coil B
The sense of current is also oppositely, thereby the rotor forward rotation is opened air door;
When Damper-A is input as low level signal, when Damper-B input also is low level signal, two groups of output terminals A+, the A-two group loop A corresponding with B+, B-
And B
In current direction be respectively A and flow to
B flows to
First group of loop A
The sense of current is forward, second group of coil B
The sense of current is also forward, and rotor is failure to actuate.
According to the ventilation door driving logic control device in the embodiment of the present invention, by adopting the driving logic control circuit that discrete component is built, realize the control to the air door of refrigerator, thereby greatly reduce production costs, only have 1/3rd of common integrated drive chips, also improved in addition the reliability of equipment.
A kind of driving control system of air door for refrigerator 300 proposed in second aspect present invention embodiment, as shown in Figure 3, this air door driving control system 300 comprises air door D0, damper motor M0, ventilation door driving logic control device 301, control device 302.Wherein, ventilation door driving logic control device 301 is connected with damper motor M0, moves to control air door D0 for drive motors.Control device 302 is connected with ventilation door driving logic control device 301, and be used to the original state of air door D0 is set, and judgement is in predetermined period, whether the action step number of air door D0 arrives target step number, if so, mean that air door D0 has reached the control requirement, can stop air door D0 action; If not, mean that air door D0 does not also move and puts in place, this air door driving control system 300 needs to continue to adjust the action of air door D0 until the action step number of air door D0 reaches target step number.
In one embodiment of the invention, the ventilation door driving logic control device (as depicted in figs. 1 and 2) that provides for the above embodiment of the present invention of ventilation door driving logic control device 301.
In one embodiment of the invention, predetermined period is the 3-4 millisecond.Particularly, can be preset as 3.5 milliseconds, judgement is in a pulse of 3.5 milliseconds, and whether the action step number of air door D0 arrives target step number.
In one embodiment of the invention, control device 302 arranges the original state of air door D0, comprising: the state that air door D0 is set is followed successively by open mode and closed condition.
Air door driving control system 300 in the embodiment of the present invention, by adopting the driving logic control circuit that discrete component is built, realize the control to the air door of refrigerator, circuit is simple and be easy to control, and no longer needs to increase extra chip, has effectively reduced production cost.
As shown in Figure 4, the embodiment of third aspect present invention has proposed a kind of refrigerator 400, comprises the driving control system of the air door for refrigerator 300 that the above embodiment of the present invention provides, and this refrigerator 400 is simple to operate, and corresponding function is easy to realize.
As shown in Figure 5, the embodiment of fourth aspect present invention proposes a kind of air door for refrigerator and drives control method, comprises the following steps:
Step S501: the air door original state is set.
Step S502: whether the action step number that judges air door in predetermined period arrives target step number, if so, performs step S503, otherwise execution step S504.
Step S503: stop the air door action.
Step S504: utilize above-mentioned air door driving control system 300 to adjust the action of air door until the action step number of air door reaches target step number.
With reference to Fig. 6, it is that the initialized concrete steps of air door execution comprise that the air door original state is set:
Step S601: start, air door is powered on, start start program.
Step S602: put air door initialization flag position.
Step S603: put and open the request flag position.
Step S604: subprogram is opened in operation.
Step S605: whether complete, if not, re-execute step S604 if judging that air door is opened; If so, carry out next step S606.
Step S606: remove and open the request flag position.
Step S607: put the turn-off request flag bit.
Step S608: subprogram is closed in operation.
Step S609: whether complete, if not, re-execute step S608 if judging that air door is closed; If so, carry out next step S610.
Step S610: remove the turn-off request flag bit, and remove air door initialization flag position.
Step S611: finish, air door initializes flow process to be finished.
According to said process, no matter being in, opens and/or closed condition by initial air door, at first by controlling motor, make air door fully open-minded, and then air door is closed fully, namely allow the original state of air door be always closed condition.
In one embodiment of the invention, according to the specification of damper motor, adopting predetermined period is a pulse of 3-4 millisecond (preferably 3.5 milliseconds), is used for controlling turning of motor and stops and direction, and then control the action of air door.In an embodiment of the present invention, this predetermined period can be adjusted according to the specification of damper motor.As shown in Figure 7, concrete steps comprise:
Step S701: start, start start program, the motor air door is powered on.
Whether step S702:3.5 millisecond timer flag bit puts 1 (3.5 milliseconds of pulses), if so, carries out next step S703, if not, performs step S710.
Step S703: remove 3.5 millisecond timer flag bits, reclocking.
Step S704: judge that air door moves at present step number and whether reaches target step number, if so, mean that air door has reached the control requirement, carry out next step S709; If not, mean air door also not action put in place, need the judgement air door to be in to open or closing process in, if air door is in closing process, perform step S705, if air door is in opening procedure, perform step S707.
Step S705: air door is closed flag bit and whether is put 1, if so, carries out next step S706; If not, perform step S707.
Step S706: subprogram is closed in operation, and so circulation, until air door action step number reaches target step number.
Step S707: whether damper open flag position 1, if so, carries out next step S708; If not, perform step S705.
Step S708: subprogram is opened in operation, and so circulation, until air door action step number reaches target step number.
Step S709: remove air door and open the request flag position and remove air door turn-off request flag bit.
Step S710: finish, air door has moved, and waits for the next action request of air door.
According to the air door for refrigerator of the embodiment of the present invention, drive control method, control mode is simple, simple operation, and its function implements controlled more flexibly.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is by claims and be equal to and limit.
Claims (9)
1. the ventilation door driving logic control device of a refrigerator, is characterized in that, comprising:
The first control end, be used to exporting the first control signal;
The second control end, be used to exporting the second control signal;
The first driver module, the input of described the first driver module is connected with described the first control end, for according to first group of coil of described the first control signal drive motors and control the sense of current of described first group of coil, wherein, described motor is for driving opening and/or cutting out of described air door;
The second driver module, the input of described the second driver module is connected with described the second control end, for according to described the second control signal, driving second group of coil of described motor and control the sense of current of described second group of coil so that the current opposite in direction of the sense of current of described second group of coil and described first group of coil, wherein, described first group of coil and described second group of coil are mutually orthogonal;
Enable Pin, for the output enable signal; And
Enable module, described enable module is connected respectively with described Enable Pin, described the first driver module and described the second driver module, for under the control of described enable signal, described the first driver module and described the second driver module being powered on, wherein, when the enable signal of described Enable Pin output is high level, described enable module powers on to described the first driver module and described the second driver module, and described enable module comprises:
The first resistance, an end of described the first resistance is connected with described Enable Pin;
The second resistance, an end of described the second resistance is connected with the other end of described the first resistance, and the other end ground connection of described the second resistance;
The first triode, the base stage of described the first triode is connected with the other end of described the first resistance and an end of described the second resistance, the grounded emitter of described the first triode, the colelctor electrode of described the first triode are connected with described the second driver module with described the first driver module respectively.
2. ventilation door driving logic control device as claimed in claim 1, is characterized in that, described the first driver module comprises:
The 3rd resistance, an end of described the 3rd resistance is connected with described the first control end;
The 4th resistance, an end of described the 4th resistance is connected with the other end of described the 3rd resistance, the other end ground connection of described the 4th resistance;
The 5th resistance, an end of described the 5th resistance is connected with described the first control end;
The 6th resistance, an end of described the 6th resistance is connected with the other end of described the 5th resistance, the other end ground connection of described the 6th resistance;
The second triode, the base stage of described the second triode is connected with an end of described the 6th resistance, the grounded emitter of described the second triode;
The 3rd triode, the base stage of described the 3rd triode is connected with the colelctor electrode of described the second triode,
The 4th triode, the colelctor electrode of described the 4th triode is connected with the colelctor electrode of described the 3rd triode by the 7th resistance;
The 5th triode, the base stage of described the 5th triode is connected with the base stage of described the 4th triode by the 8th resistance;
The 6th triode, the colelctor electrode of described the 6th triode is connected with the colelctor electrode of described the 5th triode by the 9th resistance, the emitter stage of described the 6th triode is connected with the emitter stage of described the 3rd triode, and the base stage of described the 6th triode is connected with an end of described the 4th resistance
Wherein, an end of described first group of coil is connected with described the 8th resistance, and the other end is connected with the colelctor electrode of described the 4th triode.
3. ventilation door driving logic control device as claimed in claim 1, is characterized in that, described the second driver module comprises:
The tenth resistance, an end of described the tenth resistance is connected with described the second control end;
The 11 resistance, an end of described the 11 resistance is connected with the other end of described the tenth resistance, the other end ground connection of described the 11 resistance;
The 12 resistance, an end of described the 12 resistance is connected with described the second control end;
The 13 resistance, an end of described the 13 resistance is connected with the other end of described the 12 resistance, the other end ground connection of described the 13 resistance;
The 7th triode, the base stage of described the 7th triode is connected with an end of described the 11 resistance, the grounded emitter of described the 7th triode;
The 8th triode, the base stage of described the 8th triode is connected with the colelctor electrode of described the 7th triode,
The 9th triode, the colelctor electrode of described the 9th triode is connected with the colelctor electrode of described the 8th triode by the 14 resistance;
The tenth triode, the base stage of described the tenth triode is connected with the base stage of described the 9th triode by the 15 resistance;
The 11 triode, the colelctor electrode of described the 11 triode is connected with the colelctor electrode of described the tenth triode by the 16 resistance, the emitter stage of described the 11 triode is connected with the emitter stage of described the 6th triode with the emitter stage of described the 3rd triode respectively, the base stage of described the 11 triode is connected with an end of described the 13 resistance
Wherein, an end of described second group of coil is connected with described the 15 resistance, and the other end is connected with the base stage of described the 9th triode by the 17 resistance.
4. the driving control system of the air door for refrigerator, is characterized in that, comprising:
Air door;
Control the motor that described air door rotates;
Ventilation door driving logic control device as described as any one in claim 1-3, be used to driving described motor to control described air door action; And
Control device, described control device is connected with described ventilation door driving logic control device, for the air door original state is set, and judgement is in predetermined period, whether the action step number of described air door arrives target step number, if so, stop the air door action, otherwise described ventilation door driving logic control device continues to adjust the action of described air door until the action step number of described air door reaches described target step number.
5. as right, will remove 4 described air door driving control systems, it is characterized in that, described predetermined period is 3.5 milliseconds.
6. air door driving control system as claimed in claim 4, is characterized in that, described control device arranges the original state of described air door, comprising:
The state that described air door is set is followed successively by open mode and closed condition.
7. air door driving control system as claimed in claim 4, it is characterized in that, after described control device does not also arrive target step number for the action step number at the described air door of judgement, detect the current state of described air door, and control according to the current state of described air door the action that described ventilation door driving logic control device is adjusted described air door.
8. a refrigerator, is characterized in that, comprises the driving control system of the air door for refrigerator as described as any one in claim 4-7.
9. the air door for refrigerator drives control method, it is characterized in that, comprises the steps:
The original state of air door is set; And
Whether the action step number that judges described air door in predetermined period arrives target step number, if, stop the air door action, otherwise utilize the described ventilation door driving logic control device of any one in claim 1-3 to adjust the action of described air door until the action step number of described air door reaches described target step number.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210024518XA CN102538381B (en) | 2012-02-03 | 2012-02-03 | Refrigerator and ventilation door driving logic control device, system and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210024518XA CN102538381B (en) | 2012-02-03 | 2012-02-03 | Refrigerator and ventilation door driving logic control device, system and method thereof |
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| CN102538381A CN102538381A (en) | 2012-07-04 |
| CN102538381B true CN102538381B (en) | 2013-11-27 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937356B (en) * | 2012-11-30 | 2015-06-17 | 合肥美的电冰箱有限公司 | Driving device of electric air door and water tank provided with driving device |
| CN103900343B (en) * | 2014-04-04 | 2016-02-24 | 合肥美的电冰箱有限公司 | The control method that the control system of refrigerator air door opening and closing and refrigerator air door close |
| CN104677047A (en) * | 2015-03-19 | 2015-06-03 | 合肥美菱股份有限公司 | Electric throttle control method for refrigerator |
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| KR20000004805A (en) * | 1998-06-30 | 2000-01-25 | 전주범 | Temperature control device for refrigerator |
| CN2551939Y (en) * | 2002-06-14 | 2003-05-21 | 海尔集团公司 | Electric throttle controller for refrigerator |
| JP2005061709A (en) * | 2003-08-11 | 2005-03-10 | Toshiba Corp | Cooling fan driving device of refrigerator |
| CN2709895Y (en) * | 2004-04-27 | 2005-07-13 | 西安交通大学 | Automatic control device for temp. of refrigeration chamber of indirect freezing refrigerator |
| CN101344990A (en) * | 2007-07-12 | 2009-01-14 | 李扬荣 | Intervention type active speed limiting control device of motor vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000004805A (en) * | 1998-06-30 | 2000-01-25 | 전주범 | Temperature control device for refrigerator |
| CN2551939Y (en) * | 2002-06-14 | 2003-05-21 | 海尔集团公司 | Electric throttle controller for refrigerator |
| JP2005061709A (en) * | 2003-08-11 | 2005-03-10 | Toshiba Corp | Cooling fan driving device of refrigerator |
| CN2709895Y (en) * | 2004-04-27 | 2005-07-13 | 西安交通大学 | Automatic control device for temp. of refrigeration chamber of indirect freezing refrigerator |
| CN101344990A (en) * | 2007-07-12 | 2009-01-14 | 李扬荣 | Intervention type active speed limiting control device of motor vehicle |
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| CN102538381A (en) | 2012-07-04 |
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Address after: 230601 Hefei Changjiang Road, Anhui, No. 669 Applicant after: Hefei Midea Refrigerator Co., Ltd. Applicant after: Hefei Hualing Co., Ltd. Address before: 230601 Hefei Changjiang Road, Anhui, No. 669 Applicant before: Hefei Media Rongshida Refrigerator Co., Ltd. Applicant before: Hefei Hualing Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: HEFEI MEDIA RONGSHIDA REFRIGERATOR CO., LTD. TO: HEFEI MIDEA REFRIGERATORCO., LTD. |
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