CN202395724U - Controller and driver of heavy-current equipment - Google Patents
Controller and driver of heavy-current equipment Download PDFInfo
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- CN202395724U CN202395724U CN2011204432608U CN201120443260U CN202395724U CN 202395724 U CN202395724 U CN 202395724U CN 2011204432608 U CN2011204432608 U CN 2011204432608U CN 201120443260 U CN201120443260 U CN 201120443260U CN 202395724 U CN202395724 U CN 202395724U
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Abstract
The utility model discloses a controller of heavy-current equipment, including the components as following: a first temperature sensor, which detects the ambient temperature of the heavy-current equipment and sends the detection result to a microcontroller; a second temperature sensor, which detects the temperature of a driving module and sends the detection result to the microcontroller; a power supply management module, which provides power for each portion of the controller; and the microcontroller, wherein when the equipment is started, the acquired power of the power supply management module is in the work voltage range, and the ambient temperature is less than a threshold, a preset PWM signal is output to the driving module, after the starting of the equipment is finished, the temperature of the second temperature sensor is received in predetermined time, when the temperature is greater than the threshold of the operating temperature of the driving module, the present PWM duty ratio is increased successively until the PMW duty ratio reaches the maximum. The utility model also discloses the driver of heavy-current equipment. The controller and driver of heavy-current equipment enable heavy-current equipment to work at low temperature.
Description
Technical field
The utility model relates to high-current equipment control field, relates in particular to the control device and the drive unit of high-current equipment.
Background technology
Development along with society; The particularly raising of high-current equipment control technology; Various binding apparatus or hoisting apparatus all are designed to electronic control; The for example electric capstan of the electric winch in the Goods binding, jeep or offroad vehicle, helicopter landing gear etc., to logistics transportation, jeep or offroad vehicle rescue or save oneself, that helicopter rescue or freight transportation have brought is greatly convenient, and operating efficiency is improved greatly.
The electric winch that Goods binding on the present market is used, the electric capstan of offroad vehicle, helicopter landing gear etc.; The control device of employed high-current equipment is very simple; Control device uses electromagnetic relay control; Electromagnetic relay directly links to each other with high-current equipment, and electromagnetic relay generally is made up of electromagnet, armature, spring leaf, contact etc., and its operating circuit is made up of control circuit and operating circuit two parts.As long as add certain voltage at the coil two ends; Will flow through certain electric current in the coil; Thereby generation galvanomagnetic effect, armature will overcome the pulling force of spring under the effect of electromagnetic attracting force inhales to iron core, thereby drives the moving contact and fixed contact (normally opened contact) adhesive of armature.Behind coil blackout, the suction of electromagnetism also disappears thereupon, and armature will return original position at the pulling force of spring, and moving contact and original fixed contact (normally-closed contact) are discharged.Adhesive like this, release, thus reached in circuit conducting to drive the high-current equipment running, to cut off to stop the purpose of high-current equipment running.For " often open, normally closed " contact of relay, can distinguish like this: be in the fixed contact of off-state when relay coil is not switched on, be called " normally opened contact "; The fixed contact that is in on-state is called " normally-closed contact ".
When using electromagnetic relay control,, be lower than under the environment of minimum normal working temperature because the operating temperature range of high-current equipment is narrow; The magnetic resistance of high-current equipment can increase, and starting torsion can increase, and the frictional force of reduction gearing also can increase; Lubricating oil can become sticky thick even solidify; Lubrication is weakened, just change or reverse, will cause high-current equipment to rotate if use this moment electromagnetic relay directly to drive high-current equipment.And the normal working temperature scope of electromagnetic relay is also narrow, is generally-20 ℃～70 ℃, and when being lower than minimum normal working temperature, electromagnetic relay also can't be worked.
In addition, electromagnetic relay can produce a large amount of heat when driving the high-current equipment running, if heat is not shed, then can't use for a long time.Existing way is to use huge fin, in time heat is shed, and can't accomplish the miniaturization of control device.
And when adopting electromagnetic relay control, control mode is by key control.For example, have one above the electric capstan of offroad vehicle and draw control line, the end of control line is a button, and button has 3 shelves; Tighten up, stop and loosening, press and tighten up button, then electric capstan tightens up action; Unclamp this button, then button is got back to stop position automatically, presses and loosens button; Then electric capstan carries out loosening up, unclamps this button, and then button is got back to stop position automatically.Can only manually control like this, and can't realize long-range, controlled in wireless, also can't accurately measure pulling force and control according to the size of pulling force.
In sum; Existing high-current equipment and control device thereof can't use when low temperature, and the control device volume is big, cooling system is complicated, can only realize manual control; Can not realize remote wireless control, also can't realize accurate tension measurement and control according to the size of pulling force.
The utility model content
In view of this, the utility model proposes a kind of control device of high-current equipment, makes high-current equipment when low temperature, to use.
Another purpose of the utility model is the drive unit that proposes a kind of high-current equipment, makes high-current equipment when low temperature, to use.
For achieving the above object, the technical scheme of the utility model embodiment is achieved in that
A kind of control device of high-current equipment, this device comprises: first temperature sensor, second temperature sensor, power management module and microcontroller, wherein:
First temperature sensor is used to detect the residing ambient temperature of high-current equipment, and said temperature signal is sent to microcontroller;
Second temperature sensor is used to detect the temperature of high-current equipment driver module, and said temperature signal is sent to microcontroller;
Power management module is used for external power source is carried out dividing potential drop, for the each several part of control device provides voltage source;
Microcontroller; Be used for when the high-current equipment start-up course; Gather the supply voltage of power management module input; When the supply voltage of being gathered in its normal working voltage scope, and the ambient temperature of first temperature sensor that receives is exported predefined pulse width modulation (PWM) signal to the high-current equipment driver module during less than predefined ambient temperature threshold value;
After the high-current equipment start-up course finishes; Regularly receive temperature signal from second temperature sensor; When said temperature value during, increase the duty ratio of current pwm signal one by one, until reaching predefined pwm signal duty ratio maximum greater than predefined driver module working temperature threshold value.
A kind of drive unit of high-current equipment, this device comprises: be controlled by driver module, Power Entry Module and the printing board PCB aluminium base of the control device of high-current equipment as stated, wherein:
Driver module is used for receiving the pwm pulse signal from control device, according to the required voltage and current of said pwm pulse signal output high-current equipment;
Power Entry Module is used for external power source is offered the driver module of high-current equipment and the power management module of said control device;
The driver module of said high-current equipment is attached on the PCB aluminium base.
The beneficial effect of the utility model does; Rotating speed or startup through in the operation process of high-current equipment, controlling high-current equipment according to current value of thrust, ambient temperature value and supply voltage stop; Make high-current equipment when low temperature, to use; Equipment protection appears realizing when unusual at electric current; Can realize accurate tension measurement and control the use of high-current equipment, and, also can realize wireless, Long-distance Control through using PCB aluminium base radiator structure can reduce the volume of control device according to the size of pulling force.
Description of drawings
Fig. 1 is the structure drawing of device of the utility model embodiment.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer, below, the utility model is elaborated through specific embodiment and referring to accompanying drawing.
The utility model is through detecting the residing ambient temperature of high-current equipment; And adjust the output of pwm signal according to said ambient temperature, and make high-current equipment when low temperature, to use, flow through the size of current of high-current equipment through detection; Control the high-current equipment running; Can equipment protection occur realizing when unusual at electric current,, can realize accurate tension measurement and according to the use of the size control high-current equipment of pulling force through detecting the output torque of high-current equipment; And, can reduce the volume of control device through using printing board PCB aluminium base radiator structure.The utility model also can be realized wireless, Long-distance Control.
The apparatus structure of the utility model embodiment is as shown in Figure 1, and a kind of control device of high-current equipment comprises: first temperature sensor, second temperature sensor, power management module and microcontroller, wherein:
First temperature sensor is used to detect the residing ambient temperature of high-current equipment, and said temperature signal is sent to microcontroller; Microcontroller is converted into actual temperature value with said temperature signal.
Preferably, first temperature sensor is integrated in microcontroller, can accurately measure the temperature of driver module and the volume that reduces control device.
Second temperature sensor is used to detect the temperature of high-current equipment driver module, and said temperature signal is sent to microcontroller.
Preferably, said second temperature sensor is attached on the printing board PCB aluminium base.
Power management module is used for external power source is carried out dividing potential drop, for the each several part of control device provides voltage source.
Said power management module can be made up of over-voltage over-current protection circuit, electric source filter circuit and voltage stabilizing circuit; Because the control device of high-current equipment is mainly used on automobile or the helicopter; So power management module has passed through particular design; Can include negative voltage surge protection circuit, high-voltage impulse protection circuit, common mode filtering circuit, DC-DC reduction voltage circuit, linear voltage-stabilizing circuit, can relatively work in the rugged environment to guarantee this module.
Microcontroller; Be used for when the high-current equipment start-up course; Gather the supply voltage of power management module input; When the supply voltage of being gathered in its normal working voltage scope, and the ambient temperature of first temperature sensor that receives is exported predefined pulse width modulation (PWM) signal to the high-current equipment driver module during less than predefined ambient temperature threshold value;
After the high-current equipment start-up course finishes; Regularly receive temperature signal from second temperature sensor; When said temperature value during, increase the duty ratio of current pwm signal one by one, until reaching predefined pwm signal duty ratio maximum greater than predefined driver module working temperature threshold value.
Wherein, the supply voltage of said power management module input is an outer power voltage, and its normal working voltage scope is 8V～16V.
Said ambient temperature threshold value is demarcated by the characteristic of high-current equipment and high-current equipment driver module, is specially:
If when being lower than temperature X; Start and to cause the magnetic resistance of high-current equipment to increase after the operation of high-current equipment forward or reverse, start that torsion increases, the frictional force of reduction gearing increases, lubricating oil becomes sticky thick even solidify and make that lubrication weakens, the driving force of high-current equipment driver module reduces, then temperature X is set at the ambient temperature threshold value.
For example; If the ambient temperature threshold value is-10 ℃; When ambient temperature is lower than-10 ℃; This moment the high-current equipment drive system each item index be higher than-10 ℃ and compare that great changes have taken place; Comprise: the magnetic resistance of high-current equipment increases, starts that torsion increases and starting current increases, the frictional force of reduction gearing increases, lubricating oil becomes sticky thickly makes that lubrication weakens, the driving force of high-current equipment driver module reduces; Metal-oxide-semiconductor or IGBT pipe in the driver module is because instantaneous large-current causes encapsulating and can't bear violent variations in temperature and burst etc., just changeing or reverse if directly drive high-current equipment this moment, will cause that high-current equipment can't rotate, immediate current is excessive causes metal-oxide-semiconductor or IGBT to manage bursting or burn circuit etc.
Therefore; The utility model uses low pulsewidth PWM heating high-current equipment and high-current equipment driver module; Make the temperature of high-current equipment and high-current equipment driver module rise to normal temperature; The width of widening pwm pulse then makes the mild startup of high-current equipment low speed, treats that the high-current equipment operation just often continues to widen pwm pulse to increase the output torque of high-current equipment.
Predefined pwm signal is exactly above-mentioned low pulsewidth PWM; Manage in order to heating high-current equipment and high-current equipment driven MOS pipe or IGBT, the duty ratio of predefined pwm signal is: make high-current equipment be in the pwm signal duty ratio under the critical condition of startup.Make high-current equipment be under the critical condition of startup operation and can protect the unlikely damage of high-current equipment driver module.
Then, set the PWM register, be specially:
Just transporting when capable when the needs high-current equipment, setting positive revolving die formula PWM register; When needs high-current equipment counter-rotating operation, set reversing mode PWM register.
Pwm pulse is that the pwm pulse generator through microprocessor internal produces, and can adjust the duty ratio of pwm pulse through the register of adjustment pwm pulse generator.
After the high-current equipment start-up course finishes; By predefined time span, regularly receive temperature signal, during the high-current equipment operation from second temperature sensor; The temperature of high-current equipment driver module can raise gradually; When said temperature value during, repeatedly increase the pwm signal duty ratio, until reaching said predefined pwm signal duty ratio maximum greater than predefined driver module working temperature threshold value.
Setting driver module working temperature threshold value is in order to guarantee that electronic devices and components have preferable service behaviour in the driver module; Said driver module working temperature threshold value is demarcated by the performance of electronic devices and components in the high-current equipment driver module; Be specially: if be higher than temperature Y; Electronic devices and components have service behaviour preferably in the said driver module, then temperature Y are set at driver module working temperature threshold value.
The peaked establishing method of said pwm signal duty ratio is:
When pulling force set point during less than predefined pulling force threshold value, said pwm signal duty ratio maximum is the corresponding pwm signal duty ratio of said pulling force threshold value;
When pulling force set point during more than or equal to predefined pulling force threshold value, said pwm signal duty ratio maximum is 100%;
Said pulling force threshold value is the weight of the maximum object of pulling number of times.
For example, high-current equipment the most often is used for spurring the object about 500kg, and at this moment, can set the pulling force threshold value is 500kg; The pwm signal duty ratio is set at 80% o'clock, just can produces the pulling force of 500kg, therefore, if the pulling force set point is less than 500kg; At this moment, setting the pwm signal duty ratio is 80%, if the pulling force set point is greater than 500kg; At this moment, needing to set the pwm signal duty ratio is 100%, just can produce the pulling force above 500kg.
The utility model device is if be used in helicopter and do not need the pulling force set point above the crane, and it is just passable perhaps to set a value of thrust bigger than the actual weight of object that need spur.
Pwm signal duty ratio maximum is the data that test obtains according to reality; For example; Set the maximum of pwm signal duty ratio according to the size of pulling force set point; So both can guarantee that winch can move the setting value of thrust to, and can not cause the winch rotating speed too high again, can save electricity consumption because the pwm signal duty ratio is too big.
The said pwm signal duty ratio that repeatedly increases; Until reaching said predefined pwm signal duty ratio maximum; Be in order to guarantee progressively to increase the output torque of high-current equipment, to avoid causing high-current equipment and driver module thereof to damage because increase pwm pulse significantly suddenly.
Preferably, the control device of said big electric current further comprises current sensor, is used to detect the electric current that flows through high-current equipment, and said current signal is sent to microcontroller; Said current sensor is the Hall type current sensor;
Said microcontroller; Be further used for before said timing receives the temperature signal from second temperature sensor; When from the electric current of current sensor greater than 0 and less than the minimum working current of high-current equipment; During perhaps greater than the maximum operating currenbt of predefined high-current equipment, close pwm pulse output; When during greater than the minimum working current of high-current equipment and less than the maximum operating currenbt of predefined high-current equipment, regularly receiving temperature signal from second temperature sensor from the electric current of current sensor.
Promptly microcontroller detects the electric current that flows through high-current equipment always when high-current equipment turns round, and when the electric current that flows through high-current equipment during greater than the maximum operating currenbt of predefined high-current equipment, stops high-current equipment and reports to the police.The minimum working current of said high-current equipment and maximum operating currenbt are demarcated according to the performance of high-current equipment.
Preferably, the control device of said big electric current further comprises:
Pulling force sensor is used to detect the value of thrust of high-current equipment, and exports the pulling force analog signal to the signal condition module;
The signal condition module is used to pulling force sensor driving voltage is provided, and amplifies the pulling force analog signal that pulling force sensor sends;
The ADC collector, the pulling force analog signal after being used for amplifying from the collection of signal condition module also is converted into digital signal, said pulling force digital signal is sent to microcontroller supplies microprocessor analysis to handle; The ADC collector is exactly an analog to digital converter;
Said microcontroller, be further used for said reach predefined pwm signal duty ratio maximum after, judge according to the external command that receives that high-current equipment is current and just changeing still counter-rotating,
If just change; The value of thrust that sends when the ADC collector is during less than the pulling force set point; Regularly receive temperature signal from second temperature sensor; When said temperature value during, increase current pwm signal duty ratio one by one, until reaching predefined pwm signal duty ratio maximum greater than predefined driver module working temperature threshold value;
If counter-rotating; When reversing time surpasses predefined time span, close pwm pulse output, when reversing time does not surpass predefined time span; Regularly receive temperature signal from second temperature sensor; When said temperature value during, increase current pwm signal duty ratio one by one, until reaching predefined pwm signal duty ratio maximum greater than predefined driver module working temperature threshold value.
During counter-rotating, automatic clutch device is arranged in the high-current equipment, the high-current equipment counter-rotating is stopped operating above after the predefined time span, high-current equipment is shielded.
Preferably, the control device of said big electric current further comprises input/output module, is used for sending instruction to microcontroller, receives the instruction and the output of microcontroller.
Said input/output module can be button, charactron, indicator light, and/or, RF receiving and transmission module, wherein:
Button is used for sending the instruction of just changeing, reverse of unlock command, pulling force set point and high-current equipment to microcontroller; Can manually set value of thrust through button, the control high-current equipment just changes, counter-rotating etc.;
Charactron is used to show the current value of thrust of microcontroller transmission, state, the pattern of control and the size of pulling force set point of high-current equipment control;
Indicator light, can be when high-current equipment just changes exhibit red, show green during counter-rotating;
RF receiving and transmission module is used for sending the instruction of just changeing, reverse of pulling force set point and high-current equipment with long-range, wireless mode to microcontroller, receives the also current value of thrust of demonstration microcontroller transmission.
Wherein, RF receiving and transmission module can be used for the control device of remote wireless control high-current equipment, operates through host computer or hand-held equipment, realizes wireless remote control.And button, charactron, indicator light can be used for manually controlling the control device of high-current equipment; With the interface of the control board that comprises microcontroller can for winding displacement mode, golden finger welding manner or plate to board connector, equally also can lump together and use a circuit board to carry out layout with control board.
Because number of keys is less, so button possibly be assigned with difference in functionality, the division of keypress function can be carried out according to current running status; For example, after the control device locking of high-current equipment, can set one and separate locking key; A charactron is set switch key, and a numeral increases key, and a numeral reduces key; So just can input password after separating locking key pressing, the charactron switch key is used for switching cipher and sets the position or confirm the password input, and digital increasing-and-decreasing key is used for input digit; After this control device release, the function of button is also switched, and at this moment can set a power value setting key; A numeral increases key, and a numeral reduces key, by the value of exerting oneself setting key; Then get into power value set condition, digital increasing-and-decreasing key is used for the power value that increases or reduce to set; After this control device release; The function of button can also be set like this: a stop key; The positive turn key of high-current equipment, a high-current equipment reverse key is pressed positive turn key of high-current equipment or reverse key; High-current equipment gets into just to be changeed or inverted status, presses the stop key high-current equipment and stops.
Preferably, said microcontroller further comprises:
When the supply voltage of being gathered not in its normal working voltage scope, and/or said ambient temperature is in technical grade chip normal working temperature scope the time, No starting high-current equipment, and output error information.The normal working temperature scope of said technical grade chip is-40 ℃～85 ℃.
The driving device structure of the high-current equipment of the utility model embodiment is as shown in Figure 1; This device comprises: be controlled by driver module, Power Entry Module and the printing board PCB aluminium base of the high-current equipment control device of the utility model embodiment, wherein:
Driver module is used for receiving the pwm pulse signal from control device, according to the required voltage and current of said pwm pulse signal output high-current equipment.
Said driver module comprises: metal-oxide-semiconductor or IGBT pipe H bridge circuit, H bridge drive circuit, wherein:
H bridge drive circuit; Be used to receive from the pwm pulse signal of microcontroller and according to said pwm pulse signal and generate metal-oxide-semiconductor or the required pwm pulse signal of IGBT pipe H bridge circuit; Self inner charge pump promotes supply voltage and produces the required high voltage of H bridge upper arm, also provides metal-oxide-semiconductor or IGBT pipe gate pole rising edge required instantaneous large-current.
Metal-oxide-semiconductor or IGBT pipe H bridge circuit are used for the running according to the pwm pulse signal control high-current equipment of H bridge drive circuit output, and provide the high-current equipment running required voltage and current; Metal-oxide-semiconductor or IGBT pipe H bridge circuit provide the high-current equipment running required big electric current; And can be through different rotatings of going up the Combination Control high-current equipment of underarm; Metal-oxide-semiconductor or IGBT pipe H bridge circuit are main high-current equipment power drive parts, also are the most serious parts of caloric value.
Power Entry Module is used for external power source is offered the driver module of high-current equipment and the power management module of said control device.
The driver module of said high-current equipment is attached on the PCB aluminium base.
Because metal-oxide-semiconductor or IGBT pipe can produce a large amount of heat when high-current equipment turns round; Existing way is to use huge fin, and the heat that in time metal-oxide-semiconductor or IGBT pipe is produced sheds, and can't do the miniaturization of auto levelizer; The utility model uses the PCB aluminium base; Can this PCB be fixed on above the shell of high-current equipment or above the fin, metal-oxide-semiconductor or IGBT pipe and second temperature sensor are attached on the PCB aluminium base, the heat that metal-oxide-semiconductor or IGBT pipe are produced shed guaranteeing in time; The pcb board volume is little; Easy for installation, be easy to the shell of high-current equipment integratedly, guarantee when can reduce the volume of equipment that metal-oxide-semiconductor or IGBT pipe can operate as normal when big electric current is provided.
Use the utility model device; Can control the high-current equipment that peak current reaches 120A; And use high-power MOS tube or the parallelly connected H bridge circuit of IGBT pipe, and can export 300A even bigger electric current, the utility model device uses unique PCB aluminium base radiator structure; Combine together with high-current equipment, avoided adding the heat abstractor of big volume.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; All within the spirit and principle of the utility model, any modification of being made, be equal to replacement, improvement etc., all should be included within the scope of the utility model protection.
Claims (10)
1. the control device of a high-current equipment is characterized in that, this device comprises: first temperature sensor, second temperature sensor, power management module and microcontroller, wherein:
First temperature sensor is used to detect the residing ambient temperature of high-current equipment, and said temperature signal is sent to microcontroller;
Second temperature sensor is used to detect the temperature of high-current equipment driver module, and said temperature signal is sent to microcontroller;
Power management module is used for external power source is carried out dividing potential drop, for the each several part of control device provides voltage source;
Microcontroller; Be used for when the high-current equipment start-up course; Gather the supply voltage of power management module input; When the supply voltage of being gathered in its normal working voltage scope, and the ambient temperature of first temperature sensor that receives is exported predefined pulse width modulation (PWM) signal to the high-current equipment driver module during less than predefined ambient temperature threshold value;
After the high-current equipment start-up course finishes; Regularly receive temperature signal from second temperature sensor; When said temperature value during, increase the duty ratio of current pwm signal one by one, until reaching predefined pwm signal duty ratio maximum greater than predefined driver module working temperature threshold value.
2. device according to claim 1 is characterized in that said device further comprises current sensor, is used to detect the electric current that flows through high-current equipment, and said current signal is sent to microcontroller;
Said microcontroller; Be further used for before said timing receives the temperature signal from second temperature sensor; When from the electric current of current sensor greater than 0 and less than the minimum working current of high-current equipment; During perhaps greater than the maximum operating currenbt of predefined high-current equipment, close pwm pulse output; When during greater than the minimum working current of high-current equipment and less than the maximum operating currenbt of predefined high-current equipment, regularly receiving temperature signal from second temperature sensor from the electric current of current sensor.
3. device according to claim 1 is characterized in that, said device further comprises:
Pulling force sensor is used to detect the value of thrust of high-current equipment, and exports the pulling force analog signal to the signal condition module;
The signal condition module is used to pulling force sensor driving voltage is provided, and amplifies the pulling force analog signal that pulling force sensor sends;
The ADC collector, the pulling force analog signal after being used for amplifying from the collection of signal condition module also is converted into digital signal, and said pulling force digital signal is sent to microcontroller;
Said microcontroller, be further used for said reach predefined pwm signal duty ratio maximum after, judge according to the external command that receives that high-current equipment is current and just changeing still counter-rotating,
If just change; The value of thrust that sends when the ADC collector is during less than the pulling force set point; Regularly receive temperature signal from second temperature sensor; When said temperature value during, increase current pwm signal duty ratio one by one, until reaching predefined pwm signal duty ratio maximum greater than predefined driver module working temperature threshold value;
If counter-rotating; When reversing time surpasses predefined time span, close pwm pulse output, when reversing time does not surpass predefined time span; Regularly receive temperature signal from second temperature sensor; When said temperature value during, increase current pwm signal duty ratio one by one, until reaching predefined pwm signal duty ratio maximum greater than predefined driver module working temperature threshold value.
4. device according to claim 1 is characterized in that said device further comprises input/output module, is used for sending instruction to microcontroller, receives the instruction and the output of microcontroller.
5. device according to claim 1 is characterized in that, said first temperature sensor is integrated in microcontroller;
Said second temperature sensor is attached on the printing board PCB aluminium base.
6. device according to claim 1 is characterized in that,
When pulling force set point during less than predefined pulling force threshold value, said pwm signal duty ratio maximum is the corresponding pwm signal duty ratio of said pulling force threshold value;
When pulling force set point during more than or equal to predefined pulling force threshold value, said pwm signal duty ratio maximum is 100%;
Said pulling force threshold value is the weight of the maximum object of pulling number of times.
7. device according to claim 1 is characterized in that, said microcontroller further comprises:
When the supply voltage of being gathered not in its normal working voltage scope, and/or said ambient temperature is in technical grade chip normal working temperature scope the time, No starting high-current equipment, and output error information.
8. device according to claim 1 is characterized in that, the duty ratio of said predefined pwm signal is: make high-current equipment be in the pwm signal duty ratio under the critical condition of startup.
9. device according to claim 1 is characterized in that, said ambient temperature threshold value is demarcated by the characteristic of high-current equipment and high-current equipment driver module;
Said driver module working temperature threshold value is demarcated by the performance of electronic devices and components in the high-current equipment driver module.
10. the drive unit of a high-current equipment is characterized in that, this device comprises: be controlled by driver module, Power Entry Module and printing board PCB aluminium base like arbitrary control device of claim 1 to 9, wherein:
Driver module is used for receiving the pwm pulse signal from control device, according to the required voltage and current of said pwm pulse signal output high-current equipment;
Power Entry Module is used for external power source is offered the driver module of high-current equipment and the power management module of said control device;
The driver module of said high-current equipment is attached on the PCB aluminium base.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204432608U CN202395724U (en) | 2011-11-08 | 2011-11-08 | Controller and driver of heavy-current equipment |
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| CN2011204432608U CN202395724U (en) | 2011-11-08 | 2011-11-08 | Controller and driver of heavy-current equipment |
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| CN202395724U true CN202395724U (en) | 2012-08-22 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102497161A (en) * | 2011-11-08 | 2012-06-13 | 浙江双友物流器械股份有限公司 | Driving device, control device and control method for high-current equipment |
| CN106256084A (en) * | 2014-04-22 | 2016-12-21 | 三菱电机株式会社 | Control device of electric motor |
| CN110919600A (en) * | 2018-09-18 | 2020-03-27 | 南京德朔实业有限公司 | Electric tool and starting method thereof |
| CN111220868A (en) * | 2020-01-17 | 2020-06-02 | 安徽国锦电力工程有限公司 | Intelligent monitoring system for extra-high voltage power transmission and transformation equipment |
| CN111478646A (en) * | 2020-04-28 | 2020-07-31 | 重庆长安新能源汽车科技有限公司 | Temperature protection method and system for electric vehicle motor system, electric vehicle and storage medium |
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2011
- 2011-11-08 CN CN2011204432608U patent/CN202395724U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102497161A (en) * | 2011-11-08 | 2012-06-13 | 浙江双友物流器械股份有限公司 | Driving device, control device and control method for high-current equipment |
| CN102497161B (en) * | 2011-11-08 | 2014-02-19 | 浙江双友物流器械股份有限公司 | Driving device, control device and control method for high-current equipment |
| CN106256084A (en) * | 2014-04-22 | 2016-12-21 | 三菱电机株式会社 | Control device of electric motor |
| CN106256084B (en) * | 2014-04-22 | 2019-03-01 | 三菱电机株式会社 | Control device of electric motor |
| CN110919600A (en) * | 2018-09-18 | 2020-03-27 | 南京德朔实业有限公司 | Electric tool and starting method thereof |
| CN110919600B (en) * | 2018-09-18 | 2022-09-20 | 南京泉峰科技有限公司 | Electric tool and starting method thereof |
| CN111220868A (en) * | 2020-01-17 | 2020-06-02 | 安徽国锦电力工程有限公司 | Intelligent monitoring system for extra-high voltage power transmission and transformation equipment |
| CN111478646A (en) * | 2020-04-28 | 2020-07-31 | 重庆长安新能源汽车科技有限公司 | Temperature protection method and system for electric vehicle motor system, electric vehicle and storage medium |
| CN111478646B (en) * | 2020-04-28 | 2023-04-14 | 重庆长安新能源汽车科技有限公司 | Temperature protection method and system for motor system of electric vehicle, electric vehicle and storage medium |
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