CN2820004Y - Fruit and vegetible processing machine with braking function - Google Patents
Fruit and vegetible processing machine with braking function Download PDFInfo
- Publication number
- CN2820004Y CN2820004Y CN 200520002732 CN200520002732U CN2820004Y CN 2820004 Y CN2820004 Y CN 2820004Y CN 200520002732 CN200520002732 CN 200520002732 CN 200520002732 U CN200520002732 U CN 200520002732U CN 2820004 Y CN2820004 Y CN 2820004Y
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- alternating current
- current motor
- control unit
- main control
- fruit
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Abstract
The utility model relates to a fruit and vegetable processing machine with a braking function, which comprises a base, an alternating current motor arranged in the base, and a control device arranged in the base, wherein the alternating current motor can rotate normally and reversely. The fruit and vegetable processing machine with a braking function is characterized in that the control device comprises a main control unit, a switch unit and an electricity control unit. The switch unit can be controlled by the main control unit to select to switch to a positive rotation processing state and a reverse rotation braking state. When in the positive rotation processing state and the reverse braking state, the switch unit respectively supplies an alternating current power supply in the reverse flow direction to the alternating current motor for providing the dynamic force of the positive and the reverse rotation of the alternating current motor. The electricity control unit comprises a triggering component which is connected in series to a return circuit of the alternating current power supply. In the positive rotation processing state, the alternating current is conducted by the triggering component for driving the alternating current motor to rotate normally. In the reverse rotation braking state, the main control unit in a braking time controls the triggering component to conduct the alternating current locally for providing the braking dynamic force of the reverse rotation of the alternating current motor, so that the continuous braking until stop can be carried out on the alternating current motor.
Description
Technical field
The utility model relates to a kind of fruit and vegetable conditioning machine, particularly a kind of fruit and vegetable conditioning machine with brake function.
Background technology
General fruit and vegetable conditioning machine drives a cutter rotation by a motor usually when conditioning food, come foods such as fruit, vegetables are nursed one's health, and just cuts off motor power after conditioning is finished, to stop to drive the cutter rotation.Yet when motor cut off the power supply, cutter was subjected to the drive of rotatory inertia, can't stop the rotation at once, but rotating speed descended eventually gradually to stopping.
For making cutter after the motor outage, can stop at short notice, the general fruit and vegetable conditioning machine that adopts alternating current motor, control circuit of its design makes the stator of alternating current motor inside be transformed into the reversal connection state in outage, utilize the electric energy of stator remnants that Reverse Power as the rotor of motor is provided, make rotor reduce rotary speed at short notice and eventually to stopping.
The circuit connection of existing control circuit as shown in Figure 1, this alternating current motor 11 comprises a rotor 111 and two stators 112,113 that are connected in series, their cooperate one to start contact group 12 and control alternating current motors 11 with a brake contact group 13 and turn round.Controlling mechanism when this control circuit control alternating current motor runs well and brakes below is described respectively:
One, the control alternating current motor runs well: when food is nursed one's health process, this startup contact group 12 contact group 13 that is excited, brakes is not excited, the current loop of positive half cycle that makes AC power AC is shown in the thick line and the direction of arrow among Fig. 1, successively via the normally closed contact NC of stator 112, rotor 111, brake contact group 13 and the common joint C and the normal opened contact NO of common contact C, stator 113, startup contact group 12, make power supply AC can continue to be supplied to alternating current motor 11, to keep normal conditioning running.The sense of current of above-mentioned AC power AC is to be that example explains with positive half cycle, and its sense of current can changeabout direction when negative half period.
Two, control alternating current motor brake: when food-conditioning finishes, this startup contact group 12 is not excited, brake contact group 13 is excited, this moment is because AC power AC is connected the power end of the normal opened contact NO that starts contact group 12 forms sky and connect, make AC power AC can't form current loop, but the current loop that this moment, rotor 111 and stator 113 formed shown in the thick line among Fig. 2 and the direction of arrow, make electric energy remaining in the stator 113, in regular turn from stator 113, start the common joint C and the normally closed contact NC of contact group 12, rotor 111, the normal opened contact NO of brake contact group 13 and common contact C, utilize the electric energy of stator 113 remnants to offer rotor 111 whereby as reverse brake power, rotor 111 rotating speeds are descended rapidly, and allow the cutter rotating speed also slow down rapidly simultaneously.
Aforementioned control circuit uses the design of the residual electric energy of alternating current motor stator as alternating current motor rotor Reverse Power, though can make the alternating current motor rotor reduce rotary speed at short notice rapidly, so under the rotation of alternating current motor rotor high-speed, this moment is bestowed the brake strength of reverse rotation, also cause alternating current motor to produce spark easily, and make fruit and vegetable conditioning machine that moment vibrations shift phenomenon take place.Therefore, this not only has negative effect to the service life of motor, and the fruit and vegetable conditioning complete machine moment vibrations shift phenomenon that machine produced also allows the consumer be difficult to manipulate.
In addition, though control circuit uses the residual electric energy of alternating current motor stator can supply the alternating current motor rotor as reverse brake power, yet it can only allow the related cutter of alternating current motor rotor reduce rotating speed rapidly in a utmost point short time, this reverse brake power can not force the related cutter of alternating current motor rotor to stop operating fully, after in case the residual electric energy of alternating current motor stator exhausts, the rotary power of this alternating current motor rotor and cutter just can only lean on subsequently the friction between combine component disappear to and stop naturally, and cutter is in the process that this stops the rotation gradually, if user not Shen touches this still when the cutter that rotates, then have by the danger of cut wound.
The utility model content
It is a kind of when finishing conditioning that the purpose of this utility model is to provide, and can control its alternating current motor and continue brake to the fruit and vegetable conditioning machine that stops.
But the fruit and vegetable conditioning machine that the utlity model has brake function comprises a base, one to be installed in the base and the alternating current motor of rotating, and a control device that is installed in this base.It is characterized in that this control device comprises: set up the main control unit of its required operation program with sequencing for one, and be controlled by this main control unit and a switch unit and a control electric unit of changeable this alternating current motor operating condition.This switch unit can be controlled by this main control unit and select to switch to positive modulation reason state and reverse brake state, when this switch unit during at this positive modulation reason state and reverse brake state, one AC power is supplied to this alternating current motor respectively with opposite course, so that the power of these alternating current motor forward and reverse to be provided respectively.This control electric unit comprises in the current loop that is connected on this AC power and is controlled by the triggering assembly of this main control unit.When this main control unit is controlled this switch unit and is in this positive modulation reason state, this alternating current of triggering assembly conducting of this control electric unit, continue just to change to drive this alternating current motor, when this main control unit is controlled this switch unit and is in this reverse brake state, in the brake time, control local this alternating current of conducting of this triggering assembly,, make alternating current motor continue brake till stop so that this alternating current motor reverse brake power to be provided.
Description of drawings
Below by most preferred embodiment and accompanying drawing the fruit and vegetable conditioning machine that the utlity model has brake function is elaborated, in the accompanying drawing:
Fig. 1 is that existing fruit and vegetable are nursed one's health machine when conditioning food, the circuit connection schematic diagram of its control circuit and alternating current motor;
Fig. 2 is that the fruit and vegetable among Fig. 1 are nursed one's health machine when alternating current motor brakes, the circuit connection schematic diagram of its control circuit and alternating current motor;
Fig. 3 is the front view that the utlity model has the fruit and vegetable conditioning machine embodiment of brake function;
Fig. 4 is the functional block diagram of alternating current motor and the control device of this embodiment;
Fig. 5 is the circuit interconnect pattern of Fig. 4;
Fig. 6 is the circuit interconnect pattern of this embodiment when controlling alternating current motor and nursing one's health food, illustrates that switch unit is in positive modulation reason state;
Fig. 7 is the circuit interconnect pattern of this embodiment when controlling the brake of this alternating current motor, illustrates that this switch unit is in the reverse brake state;
Fig. 8 is voltage and the rotating speed relative time change curve that this embodiment controls this alternating current motor brake;
Fig. 9 is this embodiment after a period of time is slowed down in alternating current motor idle running, controls the voltage and the rotating speed relative time change curve of this alternating current motor brake.
The specific embodiment
As shown in Figure 3, the fruit and vegetable conditioning machine that the utlity model has brake function comprises the hollow base 21 that can steadily stand, be installed in the base 21 and can be actuated to forward or reverse alternating current motor 22, be placed on being installed in seat 23, being placed in the cutter 24 that is installed in the seat 23 on the base 21, and be installed in the control device 3 in the base 21.
This cutter 24 can be subjected to alternating current motor 22 to drive rotation, to carry out the vegetables and fruits food-conditioning, be subjected to drive rotation and drive cutter 24 rotations for this alternating current motor 22 via its rotating shaft 220, come to be installed in the operative scenario that foods such as fruit in the seat 23, vegetables are nursed one's health to being placed in this, owing to be the basic function that this type of fruit and vegetable conditioning machine generally possesses, seldom explain at this.
Shown in Fig. 4,5, this alternating current motor 22 includes and forms a rotor 221 and two stators 222,223 that are connected in series.This control device 3 comprises a main control unit 4 that is used to provide the major control function, is controlled by this main control unit 4 and a switch unit 5 and a control electric unit 6 of changeable these alternating current motor 22 operating conditions, and rectification unit 7 these main control unit 4 that are used for supplying above-mentioned each required dc source in unit have one and set up the master component 41 of its required operation program with sequencing, and the button 42 so that associative operation and set-up function to be provided is pushed in a plurality of confessions.Design the above button 42 normally can be for base 21 outsides of stretching out at aforementioned fruit and vegetable conditioning machine with pushing.
This switch unit 5 can be controlled by this main control unit 4 to select switching to positive modulation reason state and reverse brake state, and this switch unit 5 adopts relays in the present embodiment, but and has first, second contact group 51,52 of synchronization action.When this switch unit 5 during, AC power AC is fed to the rotor 221 of this alternating current motor 22 respectively with opposite course, so that the power of these rotor 221 forward and reverse to be provided respectively at this positive modulation reason state and reverse brake state.Be in the detailed situation that state and 22 runnings of reverse brake state control alternating current motor are managed in positive modulation for switch unit 5, will be in hereinafter explaining again.
This control electric unit 6 is connected in the current loop of this AC power AC, and includes switch module 61 and the triggering assembly 62 that is in series and is controlled by this main control unit 4, and its controlled situation also will be in hereinafter describing in detail.This switch module 61 adopts relay in the present embodiment, and this triggers assembly 62 and adopts bidirectional triode thyristor (TRIAC), therefore can use the trigger angle of master component 41 these triggering assemblies 62 of control, reaches the size of adjusting the brake voltage that is supplied to alternating current motor 22.
This rectification unit 7 is used for after this AC power AC rectification, is fed to main control unit 4, switch unit 5 and control electric unit 6.
Below be in the running situation of this positive modulation reason state and reverse brake state respectively at these switch units 5 of main control unit 4 control, distinguish that details are as follows:
1, when this main control unit 4 these switch units 5 of control were in this positive modulation reason state: its circuit interconnect pattern as shown in Figure 6, this moment, this switch unit 5 was not excited by the master component 41 of main control unit 4, therefore its first, the second contact group 51,52 all connect in normally closed contact NC with common joint C, the current loop that makes this AC power AC is shown in the thick line and the direction of arrow among the figure, the following sense of current all only explains with the positive half cycle of AC power AC, and wherein electric current is successively via stator 222, the normally closed contact NC of the first contact group 51 and common contact C, rotor 221, the common joint C of the second contact group 52 and normally closed contact NC, stator 223.
And at the same time, the master component 41 of main control unit 4 excites the switch module 61 and triggering assembly 62 of this control electric unit 6 simultaneously, the common joint C of the contact group 611 of switch module 61 is connected in normal opened contact NO, with conducting AC power AC, and 41 couples of gate G that trigger assembly 62 of master component trigger, allow alternating current pass through, make alternating current continue conducting and continue just to change, to carry out the conditioning of food to drive this alternating current motor 22.
2, when these main control unit 4 these switch units 5 of control were in this reverse brake state: its circuit interconnect pattern as shown in Figure 7, the master component 41 of main control unit 4 is in the brake time, excite this switch unit 5, make its first, the second contact group 51,52 all connect in normal opened contact NO with common joint C, so the current loop of the positive half cycle of alternating current will be shown in the thick line and the direction of arrow among the figure, successively via stator 222, the normal opened contact NO of the second contact group 52 and common contact C, rotor 221, the common joint C of the first contact group 51 and normal opened contact NO, stator 223.Therefore with regard to regard to the sense of current of rotor 221, with disclosed opposite of earlier figures 6.
In this brake time, master component 41 can excite the switch module 61 and triggering assembly 62 of this control electric unit 6 equally, wherein the common joint C of the contact group 611 of switch module 61 connects in normal opened contact NO, trigger triggering assembly 62 through adjusting and trigger assembly 62 with suitable trigger angle, only allow each interchange string ripple of AC power AC have only part to pass through, formation is to provide the reverse brake power as alternating current motor 22 less than the driving voltage between the positive refunding, need only in the design and suitably set the trigger angle that triggers assembly 62, just can be by the reverse brake voltage swing of control alternating current motor 22, allow alternating current motor 22 be relaxed in the control time and continue brake deceleration reposefully eventually till slack can adjusting brake.
As shown in Figure 8, control triggers assembly 62 outputs as the brake voltage curve L1 among the figure in the present embodiment, make the reverse brake voltage that is fed to alternating current motor 22 to provide by little gradually big mode, allow alternating current motor 22 when braking, can not be subjected to moment excessive brake voltage and produce spark suddenly, cause the alternating current motor life-span to be reduced.And, trigger the brake voltages of assembly 62 final outputs and can adjust under the control situation, also can prevent to export excessive brake voltage and cause alternating current motor 22 because of producing excessive brake Reverse Power, cause the body of fruit and vegetable conditioning machine that the vibrations shift phenomenon is arranged.Therefore, when brake voltage by little and big and finally be controlled at suitable when big or small, this follow-up brake voltage of keeping voltage stabilizing and constantly providing, just can guarantee that alternating current motor 22 obtains to relax and lasting stably braking effect, and when the brake time finishes, control triggers assembly 62 and is cut-off state and no longer conducting, and the voltage curve L1 that brakes whereby acts on alternating current motor 22, and its rotation speed change will form as speed curves L2 institute not.
Certainly the curvature of speed curves L2 can be along with triggering the different and difference to some extent of situation that assembly 62 triggered.
What this must further specify be, because alternating current motor 22 is braking under the high speed rotation situation more, be easy to generate vibrations more, therefore shown in can brake voltage curve L3 as shown in Figure 9 in the design, in the initial period of this brake time, control alternating current motor 22 can dally in advance and lower rotating speed naturally, for example at A in the time, elder generation is exciting switch assembly 61 and triggering assembly 62 not, and just begin exciting switch assembly 61 after the time and trigger assembly 62 at A, so just can allow the high speed rotation status of alternating current motor 22 obtain buffering at A at the beginning in the time through the idle running deceleration, just brake subsequently, the rotation speed change that makes alternating current motor 22 obtains steadily shown in speed curves L4, the braking effect that relaxes.
In addition one of value carry be; as long as this control electric unit 6 is provided with this triggering assembly 62; just can reach desired brake function; that is to say; the setting of this switch module 61 is not an imperative, but passes through the setting of this switch module 61, can prevent to trigger assembly 62 when running is undesired; gauge tap assembly 61 common joint C no longer connect with normal opened contact NO, obtain protection to guarantee to cut off the current loop of AC power AC.
Take a broad view of above-mentioned, the utlity model has the fruit and vegetable conditioning machine of brake function, really can when finishing conditioning, make its alternating current motor obtain steadily to continue the effect of brake, taked easily to take place the brake design of body moment vibrations skew and alternating current motor generation spark can specifically improve existing fruit and vegetable conditioning machine, so very practical really and progressive.
Claims (4)
1, a kind of fruit and vegetable of Ju You Brake car function conditionings machine is installed in the base and the alternating current motor of rotating but comprise a base, one, and a control device that is installed in this base, it is characterized in that this control device comprises:
A main control unit of setting up its required operation program with sequencing;
A switch unit, can be controlled by this main control unit to select to switch to positive modulation reason state and anti-Zhuan Brake car state, when this switch unit during at this positive modulation reason state and anti-Zhuan Brake car state, an AC power is supplied to this alternating current motor respectively with opposite course, so that the power of these alternating current motor forward and reverse to be provided respectively; And
A control electric unit comprises in the current loop that is connected on this AC power and is controlled by the triggering assembly of this main control unit;
When this main control unit is controlled this switch unit and is in this positive modulation reason state, this alternating current of triggering assembly conducting of this control electric unit, continue just to change to drive this alternating current motor, Zai Yi Brake car is in the time when this main control unit is controlled this switch unit and is in this anti-Zhuan Brake car state, control local this alternating current of conducting of this triggering assembly, so that this alternating current motor anti-Zhuan Brake car power to be provided.
2, the fruit and vegetable of Ju You Brake car function as claimed in claim 1 conditioning machine, it is characterized in that: described triggering assembly adopts controllable silicon, controls the described alternating current of the local conducting of described triggering assembly with the predetermined trigger angle in the described main control unit Zai Suo Shu Brake car time.
3, the fruit and vegetable of Ju You Brake car function as claimed in claim 2 conditionings machine is characterized in that: the described main control unit Zai Suo Shu Brake car time control described triggering assembly with voltage by the little gradually big described alternating current of mode conducting.
4, as the fruit and vegetable conditioning machine of each described Ju You Brake car function in the claim 1 to 3, it is characterized in that: described control electric unit also comprises a switch module that is connected in the current loop of described AC power jointly with described triggering assembly and is controlled by described main control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520002732 CN2820004Y (en) | 2005-02-07 | 2005-02-07 | Fruit and vegetible processing machine with braking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520002732 CN2820004Y (en) | 2005-02-07 | 2005-02-07 | Fruit and vegetible processing machine with braking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2820004Y true CN2820004Y (en) | 2006-09-27 |
Family
ID=37016552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520002732 Expired - Fee Related CN2820004Y (en) | 2005-02-07 | 2005-02-07 | Fruit and vegetible processing machine with braking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2820004Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107625457A (en) * | 2017-10-16 | 2018-01-26 | 江门市蓬江区裕威倡电器实业有限公司 | A kind of high rotating speed mixer of strap brake function |
-
2005
- 2005-02-07 CN CN 200520002732 patent/CN2820004Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107625457A (en) * | 2017-10-16 | 2018-01-26 | 江门市蓬江区裕威倡电器实业有限公司 | A kind of high rotating speed mixer of strap brake function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060927 |