阅读说明：本技术 一种防发烫稳压电源碳刷自动微调控制装置 (Automatic fine-tuning control device for anti-scalding stabilized power supply carbon brush ) 是由 滕敏亮 林建豪 雷建峰 于 2019-10-19 设计创作，主要内容包括：本发明涉及稳压电源碳刷调节装置,特别是一种防发烫稳压电源碳刷自动微调控制装置。它包含电机、碳刷、电机转向驱动模块、电压采集模块、电压比较器、温度采集模块、温度比较器、定时器模块、条件合成模块,其中：电压采集模块通过电压比较器、电机转向驱动模块对电机转向进行控制,温度采集模块和定时器模块联合通过电机对碳刷移动进行控制,其目的是为了设计一种能够有效地解决变压器接触面发烫烧伤问题的防发烫稳压电源碳刷自动微调控制装置。与现有技术相比,碳刷可根据温度自动调节接触面位置,带载能力强,变压器使用寿命长,同时可提早预防变压器碳刷接触面的发烫和烧伤；适用于对变压器温度、电流、电压、时间控制的不同要求。(The invention relates to a regulated power supply carbon brush adjusting device, in particular to an anti-scalding regulated power supply carbon brush automatic fine adjustment control device. It contains motor, carbon brush, motor steering drive module, voltage acquisition module, voltage comparator, temperature acquisition module, temperature comparator, timer module, condition synthesis module, wherein: the voltage acquisition module controls the motor steering through the voltage comparator and the motor steering driving module, the temperature acquisition module and the timer module are combined to control the movement of the carbon brush through the motor, and the automatic fine adjustment control device for the carbon brush of the anti-scalding voltage-stabilized power supply can effectively solve the problem of scalding and burning of the contact surface of the transformer. Compared with the prior art, the carbon brush can automatically adjust the position of the contact surface according to the temperature, the loading capacity is strong, the service life of the transformer is long, and meanwhile, the scalding and burning of the contact surface of the carbon brush of the transformer can be prevented in advance; the method is suitable for different requirements of controlling the temperature, the current, the voltage and the time of the transformer.)

1. The utility model provides an prevent sending out automatic micromatic control device of boiling hot constant voltage power supply carbon brush which characterized in that it contains motor, carbon brush, motor steering drive module, voltage acquisition module, voltage comparator, temperature acquisition module, temperature comparator, timer module, condition synthesis module, wherein:

(1) the voltage acquisition module acquires the output voltage of the transformer, the output end of the voltage acquisition module is connected with the first input end of the voltage comparator, and the output end of the voltage comparator is connected with the steering control end of the motor steering driving module;

(2) a temperature sensor in the temperature acquisition module acquires the temperature of the carbon brush, the output end of the temperature acquisition module is connected with the first input end of the temperature comparator, and the output end of the temperature comparator is respectively connected with the trigger input end of the timer module and the first input end of the condition synthesis module;

(3) the output end of the timer module is connected with the second input end of the condition synthesis module, the output end of the condition synthesis module is respectively connected with the working control end of the motor steering driving module and the reset end of the timer module, and the output end of the motor steering driving module is connected with the input end of the motor.

2. The automatic fine adjustment control device for the carbon brush of the anti-scalding voltage-stabilized power supply according to claim 1 is further provided with a current acquisition module and a current comparator, wherein the current acquisition module acquires input current of a transformer, an output end of the current acquisition module is connected with a first input end of the current comparator, and a first output end of the current comparator is respectively connected with a trigger input end of the timer module and a third input end of the condition synthesis module.

3. The anti-hair-scalding stabilized power supply carbon brush automatic fine adjustment control device according to claim 2, and is characterized by further comprising a voltage reference value presetting module, a current reference value presetting module, a temperature reference value presetting module and a timing presetting module, wherein an output end of the voltage reference value presetting module is connected with a second input end of the voltage comparator, an output end of the current reference value presetting module is connected with a second input end of the current comparator, an output end of the temperature reference value presetting module is connected with a second input end of the temperature comparator, and an output end of the timing presetting module is connected with an adjusting input end of the timer module.

Technical Field

The invention relates to a regulated power supply carbon brush adjusting device, in particular to an anti-scalding regulated power supply carbon brush automatic fine adjustment control device.

Background

The common voltage-stabilized power supply comprises a transformer, an output voltage acquisition circuit, a motor drive circuit, a motor, a carbon brush assembly, a protection circuit and the like.

When the input voltage (voltage of the commercial power grid) is not changed, the continuous output voltage of the whole machine is AC216V-AC 224V; the output voltage value collected by the output voltage collecting circuit is unchanged, the motor is not started, and the carbon brush fixes the current position.

When the input voltage is higher, the collected output voltage value is larger, which shows that the output voltage is too high, the contact position of the carbon brush needs to be changed, the motor is started in the left direction, the carbon brush is changed in position until the output voltage is in the range of AC216V-AC224V, and the motor is stopped.

When the input voltage is lowered, the collected output voltage value is reduced, which shows that the output voltage is too low, the contact position of the carbon brush needs to be changed, the motor is started in the right direction, the carbon brush is changed in position until the output voltage is in the range of AC216V-AC224V, and the motor is stopped.

The motor can be started to change the position of the carbon brush only when the input voltage of the stabilized voltage power supply changes, and the stabilized voltage power supply carbon brush belongs to a single-point contact surface. If input voltage is unchangeable, the current position is fixed always to the carbon brush, and under the very big circumstances of load, the carbon brush can be scalded, and the transformer contact surface can scald by reddening because there is the resistance value in the contact between carbon brush and the transformer contact surface, and the load grow, and current flow can grow through, so keep current position work for a long time, can cause the transformer contact surface can scald by reddening or even burn out.

Disclosure of Invention

The invention aims to design an automatic fine adjustment control device for a carbon brush of a hair-scald preventing stabilized voltage supply, which can effectively solve the problem of hair-scald and burn on the contact surface of a transformer.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides an prevent sending out automatic micromatic control device of boiling hot constant voltage power supply carbon brush which characterized in that it contains motor, carbon brush, motor steering drive module, voltage acquisition module, voltage comparator, temperature acquisition module, temperature comparator, timer module, condition synthesis module, wherein:

(1) the voltage acquisition module acquires the output voltage of the transformer, the output end of the voltage acquisition module is connected with the first input end of the voltage comparator, and the output end of the voltage comparator is connected with the steering control end of the motor steering driving module;

(2) a temperature sensor in the temperature acquisition module acquires the temperature of the carbon brush, the output end of the temperature acquisition module is connected with the first input end of the temperature comparator, and the output end of the temperature comparator is respectively connected with the trigger input end of the timer module and the first input end of the condition synthesis module;

(3) the output end of the timer module is connected with the second input end of the condition synthesis module, the output end of the condition synthesis module is respectively connected with the working control end of the motor steering driving module and the reset end of the timer module, and the output end of the motor steering driving module is connected with the input end of the motor.

In order to further prevent the contact surface of the transformer from being scalded and burned in advance, the technical scheme is further provided with: the transformer is characterized by further comprising a current acquisition module and a current comparator, wherein the current acquisition module acquires input current of the transformer, the output end of the current acquisition module is connected with the first input end of the current comparator, and the first output end of the current comparator is respectively connected with the trigger input end of the timer module and the third input end of the condition synthesis module.

In order to be suitable for different requirements of different occasions on the temperature, current, voltage and time control of the transformer and convenient adjustment, the technical scheme is further provided with: the voltage reference value presetting module, the current reference value presetting module, the temperature reference value presetting module and the timing presetting module are further arranged, the output end of the voltage reference value presetting module is connected with the second input end of the voltage comparator, the output end of the current reference value presetting module is connected with the second input end of the current comparator, the output end of the temperature reference value presetting module is connected with the second input end of the temperature comparator, and the output end of the timing presetting module is connected with the adjusting input end of the timer module.

Compared with the prior art, the invention has the following beneficial effects: the carbon brush can automatically adjust the position of the contact surface of the carbon brush and the transformer according to the temperature, and the carbon brush is in multi-point contact with the contact surface of the transformer, so that the loading capacity of the transformer is greatly improved, the service life of the transformer is greatly prolonged, and meanwhile, the burning and burning of the contact surface of the carbon brush of the transformer can be prevented in advance; the device is suitable for different requirements of different occasions on the temperature, current, voltage and time control of the transformer, and is convenient to adjust.

Drawings

Fig. 1 is a schematic diagram of the operation of the present embodiment.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

As shown in fig. 1, the present embodiment includes a motor, a carbon brush, a motor steering driving module, a voltage collecting module, a voltage comparator, a temperature collecting module, a temperature comparator, a current collecting module, a current comparator, a timer module, and a condition synthesizing module, wherein:

(1) the voltage acquisition module acquires the output voltage of the transformer, the output end of the voltage acquisition module is connected with the first input end of the voltage comparator, and the output end of the voltage comparator is connected with the steering control end of the motor steering driving module;

(2) a temperature sensor in the temperature acquisition module acquires the temperature of the carbon brush, the output end of the temperature acquisition module is connected with the first input end of the temperature comparator, and the output end of the temperature comparator is respectively connected with the trigger input end of the timer module and the first input end of the condition synthesis module;

(3) the current acquisition module acquires input current of the transformer, the output end of the current acquisition module is connected with the first input end of the current comparator, and the first output end of the current comparator is respectively connected with the trigger input end of the timer module and the third input end of the condition synthesis module.

(4) The output end of the timer module is connected with the second input end of the condition synthesis module, the output end of the condition synthesis module is respectively connected with the working control end of the motor steering driving module and the reset end of the timer module, and the output end of the motor steering driving module is connected with the input end of the motor.

In addition, in order to meet different requirements of different occasions on the temperature, current, voltage and time control of the transformer and facilitate the adjustment of a voltage reference value, a current reference value, a temperature reference value and a timing preset value, the present embodiment is further provided with a voltage reference value presetting module, a current reference value presetting module, a temperature reference value presetting module and a timing preset module, an output end of the voltage reference value presetting module is connected with a second input end of the voltage comparator, an output end of the current reference value presetting module is connected with a second input end of the current comparator, an output end of the temperature reference value presetting module is connected with a second input end of the temperature comparator, and an output end of the timing preset module is connected with an adjustment input end of the timer module.

During operation, the voltage acquisition module, the temperature acquisition module and the current acquisition module respectively acquire and track the output voltage of the transformer, the temperature of the carbon brush and the input current of the transformer in real time, and the voltage acquisition module, the temperature acquisition module and the current acquisition module respectively process sampling values in real time according to the following paths:

1. processing an output voltage sampling value: the voltage acquisition module compares the output voltage sampling value with a reference value preset by the voltage reference value presetting module through the voltage comparator, when the output voltage is higher than the preset reference value, the voltage comparator outputs a high level to a steering control end of the motor steering driving module, and the motor steering driving module starts a motor left-turn preparation circuit; when the output voltage is smaller than a preset reference value, the voltage comparator outputs a low level to a steering control end of the motor steering driving module, and the motor steering driving module starts a motor right-turn preparation line. And the work control end of the motor steering driving module waits for an execution signal.

2. Processing a carbon brush temperature sampling value: the temperature acquisition module compares the sampling value of the carbon brush temperature with a reference value preset by the temperature reference value presetting module through the temperature comparator, and when the temperature sampling value is greater than or equal to the reference value, a signal is output to the timer module, the timer is started, and meanwhile, a high level signal is output to the condition synthesis module.

3. Processing a sampling value of an input current of the transformer: the current acquisition module compares a current acquisition value with a reference value preset by the current reference value presetting module through the current comparator, and when a current sampling value is greater than or equal to the reference value, a signal is output to the timer module, the timer is started, and meanwhile, a high level is output to the condition synthesis module.

4. The timer module starts timing: when the timer module is controlled by the output signal of the current comparator or the temperature comparator, timing is started, and when the timing accumulated time reaches a preset value, the timer module outputs a high level signal to the condition synthesis module.

After the sampling values of the output voltage, the carbon brush temperature and the transformer input current are processed, the timer module starts timing under the control of the output signals of the current comparator or the temperature comparator, when the timing accumulated time reaches a preset value, the timer module outputs a high level signal to the condition synthesis module, the condition synthesis module synthesizes the input signals provided by the timer module, the current comparator and the temperature comparator, as long as the high level signal of the timer module and the high level signal of any other path are received, the output end of the condition synthesis module outputs the high level signal to the work control end of the motor steering driving module and the reset end of the timer module respectively, on one hand, the time accumulation of the timer module is cleared, on the other hand, the motor steering driving module is started to work, and the motor steering driving module turns to a prepared circuit according to the motor steering started by the voltage comparator in advance, the driving motor drives the carbon brush to rotate, the position of the carbon brush is changed, the voltage acquisition module tracks in real time, when the output voltage is about to overflow the range, the output voltage comparator sends a motor stop signal and sends a reversing preparation signal, the output voltage meets the requirement, and at the moment, the temperature is gradually reduced due to the fact that the contact surface of the carbon brush and the transformer is changed.

After the position of the carbon brush is changed for the first time, the sampling value of the second output voltage is changed compared with the sampling value of the first output voltage, the motor steering control signal output by the voltage comparator for the second time is opposite to the first time, meanwhile, the sampling values of the temperature of the carbon brush and the input current of the transformer are possibly still larger than or equal to the reference value, the current comparator or the temperature comparator still outputs the control signal, the timer module can count again, when the accumulated time reaches the preset value again, the system sends a signal again to start the motor, the position of the carbon brush is changed, and at the moment, the rotating direction of the motor is the opposite direction of the previous time. If the temperature of the carbon brush and the sampling value of the input current of the transformer are constant all the time, the system times repeatedly, the motor rotates anticlockwise and clockwise repeatedly (the repeated starting time can be set, and the starting time is as long as 30 minutes), so that the position of the carbon brush is changed repeatedly, and the problem that the contact surface of the transformer is hot and red is solved.

When the sampling values of the carbon brush temperature and the transformer input current are smaller than the reference value, the device exits the carbon brush multipoint contact surface change program, so that the normal mode voltage stabilization program is entered, and the timer is closed.