CN205123648U - Electronic utensil and motor speed regulating device thereof - Google Patents
Electronic utensil and motor speed regulating device thereof Download PDFInfo
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- CN205123648U CN205123648U CN201520883395.4U CN201520883395U CN205123648U CN 205123648 U CN205123648 U CN 205123648U CN 201520883395 U CN201520883395 U CN 201520883395U CN 205123648 U CN205123648 U CN 205123648U
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Abstract
The utility model discloses an electronic utensil and motor speed regulating device thereof, the device includes: the supply circuit of the motor power supply of electronic utensil is thought to usefulness, the speed governing circuit of connection between supply circuit and motor for the rotational speed of control motor, the first switch of setting in the speed governing circuit, the second switch of setting in the speed governing circuit, wherein, speed governing circuit basis first switch with the break -make state of second switch is right motor rotation number controls. Thereby, according to the break -make state of first switch and second switch can be at two rotational speeds of control motor under the common mode not, but the direct control motor turns round with first rotational speed under the full speed mode, need not to realize through speed regulation, convenient and fast to and in the stepless speed control mode, steerable motor rotation number in succession, evenly change in order to reach the stepless speed control effect satisfies user's different rotational speed demands, promotion user's experience.
Description
Technical field
The utility model relates to living electric apparatus technical field, particularly a kind of motor speed control device of electric device and a kind of electric device.
Background technology
Relevant electric device such as mixer, juice extractor etc. need to control motor speed according to actual service condition usually, and for mixer, mixer should select mixing speed and motor speed according to being stirred thing.In correlation technique, most employing many grades of speed-regulating switchs realize rotational speed regulation, but its shortcoming existed is that motor can only with arbitrary grade of rotation speed operation in the many grades of rotating speeds set, and adjustable rotating speed is less, cannot meet the demand of user.
Therefore, correlation technique needs to improve.
Utility model content
The utility model is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, an object of the present utility model is the motor speed control device proposing a kind of electric device, can control rotating speed in different modes, and rotating speed is continuous, even variation to make can to carry out stepless speed regulation to motor.
Another object of the present utility model is to propose a kind of electric device.
According to the motor speed control device of the electric device that the utility model proposes on the one hand, comprising: power supply circuits, the described power supply circuits feeding electric motors thinking described electric device; Alignment circuit, described alignment circuit is connected between described power supply circuits and described motor, and described alignment circuit is in order to control the rotating speed of described motor; Be arranged on the first switch in described alignment circuit; Be arranged on the second switch in described alignment circuit; Wherein, described alignment circuit controls described motor speed according to the on off operating mode of described first switch and described second switch.
According to the motor speed control device of the electric device that the utility model proposes, alignment circuit controls motor speed according to the on off operating mode of the first switch and second switch, thus, the rotating speed of motor can be controlled under two different modes according to the on off operating mode of the first switch and second switch, motor directly can be controlled with the first rotation speed operation under Full-Speed mode, without the need to being realized by rotational speed regulation, convenient and swift, and in stepless speed regulation pattern, motor speed can be controlled continuous, even variation is to reach stepless speed regulation effect, meet the different rotating speeds demand of user, promote the experience of user.
Particularly, described alignment circuit comprises: controllable silicon; Control unit, described control unit is connected with described controllable silicon, and described control unit is in order to control the described silicon controlled angle of flow to control the rotating speed of described motor.
Particularly, described power supply circuits have the first output and the second output, first output of described power supply circuits is connected with described silicon controlled one end, the described silicon controlled other end is connected with one end of described motor, second output of described power supply circuits is connected with the other end of described motor, wherein, described control unit comprises: the first electric capacity, and one end of described first electric capacity is connected with described silicon controlled one end; Adjustable resistance, one end of described adjustable resistance is connected with the other end of described first electric capacity, the other end of described adjustable resistance is connected with one end of described second switch, the control end of described adjustable resistance is connected with one end of described adjustable resistance, has first node between described adjustable resistance and described first electric capacity; First resistance, one end of described first resistance is connected with the other end of described second switch, the other end of described first resistance is connected with the described silicon controlled other end, between described first resistance and described second switch, there is Section Point, wherein, one end of described first switch is connected with described first node, and the other end of described first switch is connected with described Section Point; Bidirectional diode, one end of described bidirectional diode is connected with described first node, and the other end of described bidirectional diode is connected with described silicon controlled control end.
Particularly, described power supply circuits have the first output and the second output, first output of described power supply circuits is connected with described silicon controlled one end, one end of described second switch is connected with the described silicon controlled other end, the other end of described second switch is connected with one end of described motor, second output of described power supply circuits is connected with the other end of described motor, one end of described first switch is connected with described silicon controlled one end, the other end of described first switch is connected with the other end of described second switch, wherein, described control unit comprises: the first electric capacity, one end of described first electric capacity is connected with described silicon controlled one end, adjustable resistance, one end of described adjustable resistance is connected with the other end of described first electric capacity, and the control end of described adjustable resistance is connected with one end of described adjustable resistance, has first node between described adjustable resistance and described first electric capacity, first resistance, one end of described first resistance is connected with the other end of described adjustable resistance, and the other end of described first resistance is connected with the described silicon controlled other end, bidirectional diode, one end of described bidirectional diode is connected with described first node, and the other end of described bidirectional diode is connected with described silicon controlled control end.
Further, the motor speed control device of described electric device also comprises: the first inductance, and described first inductance is connected on one end of described motor; Second inductance, described second inductance is connected on the other end of described motor.
Further, when described motor is direct current machine, described motor speed control device also comprises the alternating current that described alignment circuit exports is converted to galvanic rectification circuit.
Particularly, described power supply circuits comprise: the first power input and second source input; Fuse, one end of described fuse is connected with described first power input; Piezo-resistance, one end of described piezo-resistance is connected with the other end of described fuse, and the other end of described piezo-resistance is connected with described second source input; Second resistance, one end of described second resistance is connected with one end of described piezo-resistance using the first output as described power supply circuits, and the other end of described second resistance is connected with the other end of described piezo-resistance using the second output as described power supply circuits.
Further, described power supply circuits also comprise: the second electric capacity, and described second electric capacity is in parallel with described piezo-resistance.
According to a kind of electric device that the utility model proposes on the other hand, comprise the motor speed control device of described electric device.
According to electric device of the present utility model, by above-mentioned motor speed control device, the rotating speed of motor can be controlled under two different modes, and directly can control motor with the first rotation speed operation under Full-Speed mode, without the need to being realized by rotational speed regulation, convenient and swift, and in stepless speed regulation pattern, can control motor speed continuously, even variation to reach stepless speed regulation effect, meet the different rotating speeds demand of user, promote the experience of user.
Particularly, described electric device is mixer.
Accompanying drawing explanation
Fig. 1 is the block diagram of the motor speed control device of electric device according to the utility model embodiment;
Fig. 2 is the circuit theory of the motor speed control device of electric device according to the utility model embodiment;
Fig. 3 is the circuit theory of the motor speed control device of electric device according to another embodiment of the utility model;
Fig. 4 is the circuit theory of the motor speed control device of electric device according to another embodiment of the utility model;
Fig. 5 is the circuit theory of the motor speed control device of electric device according to another embodiment of the utility model;
Reference numeral:
Power supply circuits 10, alignment circuit 20, first K switch 1, second switch K2, motor 30;
Controllable silicon SCR, the first electric capacity C1, adjustable resistance VR, the first resistance R1 and bidirectional diode D1;
Rectification circuit 40, first inductance L 1, second inductance L 2, first power input CN1, second source input CN2, fuse F1, piezo-resistance RZ, the second resistance R2 and the second electric capacity C2.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
Below with reference to the accompanying drawings describe the motor speed control device of the electric device that the utility model embodiment proposes and there is the electric device of this device.
Fig. 1 is the block diagram of the motor speed control device of electric device according to the utility model embodiment.As shown in Figure 1, the motor speed control device of this electric device comprises: power supply circuits 10, alignment circuit 20, first K switch 1 and second switch K2.
Wherein, power supply circuits 10 are with thinking that the motor 30 of electric device is powered; Alignment circuit 20 is connected between power supply circuits 10 and motor 30, and alignment circuit 20 is in order to control the rotating speed of motor 30; First K switch 1 is arranged in alignment circuit 20; Second switch K2 is arranged in alignment circuit; Alignment circuit 20 controls according to the rotating speed of on off operating mode to motor 30 of the first K switch 1 and second switch K2.
Particularly, alignment circuit 20 can carry out pattern switching according to the on off operating mode of the first K switch 1 and second switch K2, when the first K switch 1 is in conducting state and second switch K2 is in off state alignment circuit 20 at full speed Schema control motor 30 to make motor 30 with the first rotation speed operation, when second switch K2 is in conducting state and the first K switch 1 is in off state alignment circuit 20 with stepless speed regulation Schema control motor 30 to make the rotating speed of motor 30 according to the instruction consecutive variations of input.
It should be noted that, in an example of the present utility model, the first rotating speed can be the maximum (top) speed that motor 30 can reach.First K switch 1 and second switch K2 can be push switch, select corresponding pattern by triggering push switch.In addition, under stepless speed regulation pattern, carry out rotational speed regulation by speed-regulating switch, user inputs instruction by speed-regulating switch, with the change making alignment circuit 20 control motor speed continuous uniform in adjustable extent, reaches stepless speed regulation effect.
Thus, the motor speed control device of the electric device of the utility model embodiment can control the rotating speed of motor under two different modes, and directly can control motor with the first rotation speed operation under Full-Speed mode, without the need to being realized by rotational speed regulation, convenient and swift, and in stepless speed regulation pattern, can control motor speed continuously, even variation to be to reach stepless speed regulation effect, meet the different rotating speeds demand of user, promote the experience of user.
Particular circuit configurations and the operation principle thereof of the alignment circuit 20 of the utility model embodiment are described below.
According to embodiments more of the present utility model, as shown in Figures 2 and 3, alignment circuit 20 comprises: controllable silicon SCR and control unit.Wherein, control unit is connected with controllable silicon SCR, and control unit is in order to control the angle of flow of controllable silicon SCR to control the rotating speed of motor 30.
Specifically, the electric energy that power supply circuits 10 provide is supplied to motor 30 by alignment circuit 20, wherein, electric energy all can be supplied to motor 30 by alignment circuit 20, or, control unit can control the angle of flow of controllable silicon SCR according to the instruction of user's input, electric energy is supplied to motor 30 after controllable silicon SCR copped wave, and the large young pathbreaker of such angle of flow determines the size of motor speed.
Wherein, the angle between when the angle of flow can refer to be triggered conducting from zero crossing to controllable silicon SCR.
According to a specific embodiment of the present utility model, as shown in Figure 2, power supply circuits 10 have the first output and the second output, first output of power supply circuits 10 is connected with one end of controllable silicon SCR, the other end of controllable silicon SCR is connected with one end of motor 30, and the second output of power supply circuits 10 is connected with the other end of motor 30.
Wherein, control unit comprises: the first electric capacity C1, adjustable resistance VR, the first resistance R1 and bidirectional diode D1.Particularly, one end of the first electric capacity C1 is connected with one end of controllable silicon SCR; One end of adjustable resistance VR is connected with the other end of the first electric capacity C1, the other end of adjustable resistance VR is connected with one end of second switch K2, the control end of adjustable resistance VR is connected with one end of adjustable resistance VR, has first node between adjustable resistance VR and the first electric capacity C1; One end of first resistance R1 is connected with the other end of second switch K2, the other end of the first resistance R1 is connected with the other end of controllable silicon SCR, between first resistance R1 and second switch K2, there is Section Point, wherein, one end of first K switch 1 is connected with first node, and the other end of the first K switch 1 is connected with Section Point; One end of bidirectional diode D1 is connected with first node, and the other end of bidirectional diode D1 is connected with the control end of controllable silicon SCR.
It should be noted that, in the figure 2 example, the first resistance R1 can be the anti-interference resistance that resistance is very little, and controllable silicon SCR can be bidirectional triode thyristor SCR, and motor 30 can be alternating current machine.
Second switch K2 is controlled when turning off when control first K switch 1 conducting, because the resistance of the first resistance R1 is very little, the RC time constant of the first resistance R1 and the first electric capacity C1 is very little, controllable silicon SCR can be considered complete conducting namely in zero crossing conducting, be equivalent to short circuit, namely the alternating current that power supply circuits 10 export is supplied to alternating current machine without controllable silicon SCR copped wave substantially, and motor rotates at full speed, and namely now the first rotating speed is the maximum (top) speed of motor 30.
When controlling second switch K2 conducting and control the first K switch 1 turns off, the alternating current that power supply circuits 10 export will be supplied to alternating current machine to make electric machine rotation after controllable silicon SCR copped wave, wherein, the angle of flow of controllable silicon SCR is determined by the actual resistance of adjustable resistance VR, namely says that the rotating speed of motor is determined by the actual resistance of adjustable resistance VR.When regulating adjustable resistance VR to make its resistance increase, the angle between when the controllable silicon SCR angle of flow and zero crossing are triggered conducting to controllable silicon SCR is larger, and the electric energy that can be supplied to motor 30 is fewer, and the rotating speed of motor 30 is less; When regulating adjustable resistance VR to make its resistance reduce, the controllable silicon SCR angle of flow is less, and the electric energy that can be supplied to motor 30 is more, and the rotating speed of motor 30 is higher.In adjustment process, the change in resistance of adjustable resistance VR is well-proportioned, thus the change of motor speed also can be well-proportioned, and then reaches the effect of motor stepless speed regulation.
Thus, the setting of two patterns, a pattern is used for carrying out stepless speed regulation to motor, and another pattern can directly control motor and rotate with maximum (top) speed, is user-friendly to.
According to another specific embodiment of the present utility model, as shown in Figure 3, power supply circuits 10 have the first output and the second output, first output of power supply circuits 10 is connected with one end of controllable silicon SCR, one end of second switch K2 is connected with the other end of controllable silicon SCR, the other end of second switch K2 is connected with one end of motor 30, second output of power supply circuits 10 is connected with the other end of motor 30, one end of first K switch 1 is connected with one end of controllable silicon SCR, and the other end of the first K switch 1 is connected with the other end of second switch K2.
Wherein, control unit comprises: the first electric capacity C1, adjustable resistance VR, the first resistance R1 and bidirectional diode D1.One end of first electric capacity C1 is connected with one end of controllable silicon SCR; One end of adjustable resistance VR is connected with the other end of the first electric capacity C1, and the control end of adjustable resistance VR is connected with one end of adjustable resistance VR, has first node between adjustable resistance VR and the first electric capacity C1; One end of first resistance R1 is connected with the other end of adjustable resistance VR, and the other end of the first resistance R1 is connected with the other end of controllable silicon SCR; One end of bidirectional diode D1 is connected with first node, and the other end of bidirectional diode D1 is connected with the control end of controllable silicon SCR.
Specifically, control second switch K2 when turning off when control first K switch 1 conducting, the alternating current that power supply circuits 10 export, without controllable silicon SCR, is directly supplied to alternating current machine, and motor rotates at full speed, and namely now the first rotating speed is the maximum (top) speed of motor 30.
When controlling second switch K2 conducting and control the first K switch 1 turns off, the alternating current that power supply circuits 10 export will be supplied to alternating current machine to make electric machine rotation after controllable silicon SCR copped wave, wherein, the angle of flow of controllable silicon SCR is determined by the actual resistance of adjustable resistance VR, namely says that the rotating speed of motor 30 is determined by the actual resistance of adjustable resistance VR.When regulating adjustable resistance VR to make its resistance increase, the angle between when the controllable silicon SCR angle of flow and zero crossing are triggered conducting to controllable silicon SCR is larger, and the electric energy that can be supplied to motor 30 is fewer, and the rotating speed of motor 30 is less; When regulating adjustable resistance VR to make its resistance reduce, the controllable silicon SCR angle of flow is less, and the electric energy that can be supplied to motor 30 is more, and the rotating speed of motor 30 is higher.In adjustment process, the change in resistance of adjustable resistance VR is well-proportioned, thus the change of motor speed also can be well-proportioned, and then reaches the effect of motor stepless speed regulation.
Thus, in the example of Fig. 3, the position of the first K switch 1 and second switch K2 changes relative to the example of Fig. 2, and all the other are basically identical.In the example of Fig. 3, the position of the first K switch 1 and second switch K2 arranges more ingenious, even if can reach the effect that controllable silicon SCR electrical short circuit also can not rotate, thus improves complete machine fail safe, reliability.Further, the setting of two patterns, a pattern is used for carrying out stepless speed regulation to motor, and another pattern can directly control motor and rotate with maximum (top) speed, is user-friendly to.
In addition, according to the example of Fig. 4-5, when motor 30 is direct current machine, motor speed control device also comprises rectification circuit 40, and rectification circuit 40 is converted to direct current for the alternating current exported by alignment circuit 20.
Particularly, as shown in Figure 4, the first input end of rectification circuit 40 is connected with the other end of controllable silicon SCR, first output of rectification circuit 40 is connected with one end of motor 30, second input of rectification circuit 40 is connected with the second output of power supply circuits 10, and the second output of rectification circuit 40 is connected with the other end of motor 30.Thus, control second switch K2 when turning off when control first K switch 1 conducting, the alternating current that power supply circuits 10 export, substantially without controllable silicon SCR copped wave, is namely supplied to direct current machine through rectification circuit 40 rectification; When controlling second switch K2 conducting and control the first K switch 1 turns off, the alternating current that power supply circuits 10 export is supplied to rectification circuit 40 by after controllable silicon SCR copped wave, is supplied to direct current machine, to make electric machine rotation after rectification circuit 40 rectification.
Particularly, as shown in Figure 5, the first input end of rectification circuit 40 is connected with the other end of second switch K2 with the other end of the first K switch 1 respectively, first output of rectification circuit 40 is connected with one end of motor 30, second input of rectification circuit 40 is connected with the second output of power supply circuits 10, and the second output of rectification circuit 40 is connected with the other end of motor 30.Thus, control second switch K2 when turning off when control first K switch 1 conducting, the alternating current that power supply circuits 10 export directly is supplied to direct current machine through rectification circuit 40 rectification without controllable silicon SCR; When controlling second switch K2 conducting and control the first K switch 1 turns off, the alternating current that power supply circuits 10 export is supplied to rectification circuit 40 by after controllable silicon SCR copped wave, is supplied to direct current machine, to make electric machine rotation after rectification circuit 40 rectification.
According to an example of the present utility model, rectification circuit 40 can be the rectifier bridge that four diodes are formed, and practice is generally selected according to load current, with make rectifier bridge by electric current larger.
Further, as shown in Figure 2-5, motor speed control device also comprises: the first inductance L 1 and the second inductance L 2.Wherein, the first inductance L 1 is connected on one end of motor 30; Second inductance L 2 is connected on the other end of motor 30.Particularly, as the example of Fig. 2, the first inductance L 1 is connected between the other end of controllable silicon SCR and one end of motor 30, and the second inductance L 2 is connected between the second output of power supply circuits 10 and the other end of motor 30; As the example of Fig. 3, the first inductance L 1 is connected between the other end of second switch K2 and one end of motor 30, and the second inductance L 2 is connected between the second output of power supply circuits 10 and the other end of motor 30; As the example of Fig. 4-5, the first inductance L 1 is connected between the first output of rectification circuit 40 and one end of motor 30, between the second output that the second inductance L 2 is connected to the rectification circuit 40 of power supply circuits 10 and the other end of motor 30.
It should be noted that, the first inductance L 1 and the second inductance L 2, for crossing EMC (Electro Magnetic Compatibility, ElectroMagneticCompatibility) experiment, reduce EMC interference.
In addition, as shown in Figure 2-5, power supply circuits 10 comprise: the first power input CN1, second source input CN2, fuse F1, piezo-resistance RZ and the second resistance R2.
Wherein, one end of fuse F1 is connected with the first power input CN1; One end of piezo-resistance RZ is connected with the other end of fuse F1, and the other end of piezo-resistance RZ is connected with second source input CN2; One end of second resistance R2 is connected with one end of piezo-resistance RZ using the first output as power supply circuits 10, and the other end of the second resistance R2 is connected with the other end of piezo-resistance RZ using the second output as power supply circuits 10.
It should be noted that, the first power input CN1 and second source input CN2 can connect civil power, and the first power input CN1 can be live wire L, and second source input CN2 can be zero line N.Fuse F1 and piezo-resistance RZ mainly shields in a device.
Further, as shown in Figure 2-5, power supply circuits 10 also comprise: the second electric capacity C2, and wherein, the second electric capacity C2 is in parallel with piezo-resistance RZ.It should be noted that, the second electric capacity C2 was used for EMC experiment, reduced EMC interference.
In sum, according to the motor speed control device of the electric device that the utility model embodiment proposes, alignment circuit carries out pattern switching according to the on off operating mode of the first switch and second switch, when the first switch is in conducting state and second switch is in off state alignment circuit at full speed Schema control motor to make motor with the first rotation speed operation, when second switch is in conducting state and the first switch is in off state alignment circuit with stepless speed regulation Schema control motor to make the rotating speed of motor according to the instruction consecutive variations of input.Thus, this device can control the rotating speed of motor under two different modes, and directly can control motor with the first rotation speed operation under Full-Speed mode, without the need to being realized by rotational speed regulation, convenient and swift, and in stepless speed regulation pattern, can control motor speed continuously, even variation to be to reach stepless speed regulation effect, meet the different rotating speeds demand of user, promote the experience of user.
Finally, the utility model embodiment also proposed a kind of electric device, comprises the motor speed control device of the electric device of above-described embodiment.
According to a concrete example of the present utility model, electric device can be mixer.
According to the electric device of the utility model embodiment, by above-mentioned motor speed control device, the rotating speed of motor can be controlled under two different modes, and directly can control motor with the first rotation speed operation under Full-Speed mode, without the need to being realized by rotational speed regulation, convenient and swift, and in stepless speed regulation pattern, can control motor speed continuously, even variation to reach stepless speed regulation effect, meet the different rotating speeds demand of user, promote the experience of user.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In description of the present utility model, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary indirect contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment, revises, replace and modification in scope of the present utility model.
Claims (10)
1. a motor speed control device for electric device, is characterized in that, comprising:
Power supply circuits, the described power supply circuits feeding electric motors thinking described electric device;
Alignment circuit, described alignment circuit is connected between described power supply circuits and described motor, and described alignment circuit is in order to control the rotating speed of described motor;
Be arranged on the first switch in described alignment circuit;
Be arranged on the second switch in described alignment circuit;
Wherein, described alignment circuit controls described motor speed according to the on off operating mode of described first switch and described second switch.
2. the motor speed control device of electric device according to claim 1, is characterized in that, described alignment circuit comprises:
Controllable silicon;
Control unit, described control unit is connected with described controllable silicon, and described control unit is in order to control the described silicon controlled angle of flow to control the rotating speed of described motor.
3. the motor speed control device of electric device according to claim 2, it is characterized in that, described power supply circuits have the first output and the second output, first output of described power supply circuits is connected with described silicon controlled one end, the described silicon controlled other end is connected with one end of described motor, second output of described power supply circuits is connected with the other end of described motor, and wherein, described control unit comprises:
First electric capacity, one end of described first electric capacity is connected with described silicon controlled one end;
Adjustable resistance, one end of described adjustable resistance is connected with the other end of described first electric capacity, the other end of described adjustable resistance is connected with one end of described second switch, the control end of described adjustable resistance is connected with one end of described adjustable resistance, has first node between described adjustable resistance and described first electric capacity;
First resistance, one end of described first resistance is connected with the other end of described second switch, the other end of described first resistance is connected with the described silicon controlled other end, between described first resistance and described second switch, there is Section Point, wherein, one end of described first switch is connected with described first node, and the other end of described first switch is connected with described Section Point;
Bidirectional diode, one end of described bidirectional diode is connected with described first node, and the other end of described bidirectional diode is connected with described silicon controlled control end.
4. the motor speed control device of electric device according to claim 2, it is characterized in that, described power supply circuits have the first output and the second output, first output of described power supply circuits is connected with described silicon controlled one end, one end of described second switch is connected with the described silicon controlled other end, the other end of described second switch is connected with one end of described motor, second output of described power supply circuits is connected with the other end of described motor, one end of described first switch is connected with described silicon controlled one end, the other end of described first switch is connected with the other end of described second switch, wherein, described control unit comprises:
First electric capacity, one end of described first electric capacity is connected with described silicon controlled one end;
Adjustable resistance, one end of described adjustable resistance is connected with the other end of described first electric capacity, and the control end of described adjustable resistance is connected with one end of described adjustable resistance, has first node between described adjustable resistance and described first electric capacity;
First resistance, one end of described first resistance is connected with the other end of described adjustable resistance, and the other end of described first resistance is connected with the described silicon controlled other end;
Bidirectional diode, one end of described bidirectional diode is connected with described first node, and the other end of described bidirectional diode is connected with described silicon controlled control end.
5. the motor speed control device of the electric device according to any one of claim 2-4, is characterized in that, also comprises:
First inductance, described first inductance is connected on one end of described motor;
Second inductance, described second inductance is connected on the other end of described motor.
6. the motor speed control device of electric device according to claim 5, is characterized in that, when described motor is direct current machine, described motor speed control device also comprises the alternating current that described alignment circuit exports is converted to galvanic rectification circuit.
7. the motor speed control device of the electric device according to claim 3 or 4, is characterized in that, described power supply circuits comprise:
First power input and second source input;
Fuse, one end of described fuse is connected with described first power input;
Piezo-resistance, one end of described piezo-resistance is connected with the other end of described fuse, and the other end of described piezo-resistance is connected with described second source input;
Second resistance, one end of described second resistance is connected with one end of described piezo-resistance using the first output as described power supply circuits, and the other end of described second resistance is connected with the other end of described piezo-resistance using the second output as described power supply circuits.
8. the motor speed control device of electric device according to claim 7, is characterized in that, described power supply circuits also comprise:
Second electric capacity, described second electric capacity is in parallel with described piezo-resistance.
9. an electric device, is characterized in that, comprises the motor speed control device of the electric device according to any one of claim 1-8.
10. electric device according to claim 9, is characterized in that, described electric device is mixer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520883395.4U CN205123648U (en) | 2015-11-05 | 2015-11-05 | Electronic utensil and motor speed regulating device thereof |
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| CN201520883395.4U CN205123648U (en) | 2015-11-05 | 2015-11-05 | Electronic utensil and motor speed regulating device thereof |
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| CN205123648U true CN205123648U (en) | 2016-03-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106685282A (en) * | 2015-11-05 | 2017-05-17 | 广东美的生活电器制造有限公司 | Electric appliance and motor speed regulating device thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106685282A (en) * | 2015-11-05 | 2017-05-17 | 广东美的生活电器制造有限公司 | Electric appliance and motor speed regulating device thereof |
| CN106685282B (en) * | 2015-11-05 | 2024-01-05 | 广东美的生活电器制造有限公司 | Electric appliance and motor speed regulating device thereof |
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Granted publication date: 20160330 Termination date: 20201105 |