CN213754360U

CN213754360U - Controller is cut to cable with multiple protection

Info

Publication number: CN213754360U
Application number: CN202023036236.0U
Authority: CN
Inventors: 欧永崇; 卢成登; 孙太喜
Original assignee: Shenzhen Btk Technology Co ltd
Current assignee: Shenzhen Btk Technology Co ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-07-20
Anticipated expiration: 2030-12-17

Abstract

The utility model discloses a controller is cut to cable with multiple protection, including MCU control circuit, dormancy/start circuit, MCU supply circuit, motor drive supply circuit, voltage detection circuit, temperature detection circuit, overflow detection circuit, stifled commentaries on classics/short circuit protection circuit, motor drive circuit, motor positive and negative circuit and warning suggestion circuit. The utility model discloses an electric function that the cable was cut, through foretell protection circuit, great improvement the cable cut the life of controller to promote the live time that the cable was cut.

Description

Controller is cut to cable with multiple protection

Technical Field

The utility model relates to a technical field is cut to the cable, particularly, especially relates to a controller is cut to cable with multiple protection.

Background

The cable shears are special pliers for shearing cables, and two blades of the pliers are staggered and can be opened and closed to shear the cables. The traditional cable shears at present are generally manual, and due to the fact that the size of some cables is large, shearing is labor-consuming, and meanwhile the efficiency of shearing the cables is not high. Therefore, the present invention is modified and improved in view of the defects of the above solutions in actual manufacturing and implementation, and the present invention is created with the help of professional knowledge and experience, and after many kinds of puzzles and experiments.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide a controller with multiple protection for cable cutter, so as to solve the above problems.

The utility model relates to a cable cutter controller with multiple protection, which comprises an MCU control circuit, a dormancy/startup circuit, an MCU power supply circuit, a motor drive power supply circuit, a voltage detection circuit, a temperature detection circuit, an overcurrent detection circuit, a locked rotor/short circuit protection circuit, a motor drive circuit, a motor positive and negative rotation circuit and an alarm prompt circuit; the dormancy/startup circuit is electrically connected with the MCU power supply circuit and the motor drive power supply circuit respectively; the MCU control circuit is electrically connected with the MCU power supply circuit, the voltage detection circuit, the temperature detection circuit, the over-current detection circuit, the locked rotor/short circuit protection circuit, the motor drive circuit and the alarm prompt circuit respectively; the motor driving power supply circuit is electrically connected with the motor driving circuit; the overcurrent detection circuit is electrically connected with the motor drive circuit and the locked rotor/short circuit protection circuit respectively; the motor driving circuit is electrically connected with the motor forward and reverse rotation circuit.

In one embodiment, the MCU control circuit includes an MCU of CMS8M1010 type.

In one embodiment, an operational amplifier and a comparator are arranged inside the MCU, the operational amplifier is electrically connected to the over-current detection circuit, and the comparator is electrically connected to the locked rotor/short circuit protection circuit.

In one embodiment, the MCU power supply circuit steps down the 18V dc of the battery to 5V dc via a step-down chip, which is 78L 05.

In one embodiment, the motor drive power supply circuit steps down the 18 vdc power of the battery to 15 vdc power via a step-down chip, which is model number 78L 15.

In one embodiment, the temperature detection circuit includes a thermistor fixedly disposed on the motor for monitoring the temperature of the motor in real time.

In one embodiment, the alarm prompting circuit comprises a buzzer.

In one embodiment, the overcurrent detection circuit includes a resistor RS1, which is a current detection resistor, and when the voltage across the resistor RS1 is amplified by an operational amplifier inside the MCU control circuit during operation, and the amplified voltage value is greater than a preset value, the MCU controls the motor drive circuit to stop driving the motor.

The utility model relates to a controller is cut to cable with multiple protection can realize through following technical scheme:

the utility model relates to a cable cutter controller with multiple protection, which drives the motor to rotate through the motor driving circuit and controls the motor to rotate positively and negatively through the motor positive and negative rotation circuit, thus realizing the electric function of the cable cutter; meanwhile, the state of the battery is detected through a voltage detection circuit, and high-voltage and low-voltage protection is carried out; the temperature of the motor is detected through the temperature detection circuit, and an alarm can be automatically given when the temperature exceeds a preset temperature, so that the service life of the motor is prolonged; the normal operation of the motor is ensured through the overcurrent detection circuit and the locked rotor/short circuit protection circuit; through foretell protection circuit, great improvement the life of controller is cut to the cable to promote the live time that the cable was cut.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic diagram of the control connection of the cable shear controller with multiple protection of the present invention, which includes an MCU control circuit, a sleep/start circuit, an MCU control circuit power supply circuit, a motor driving power supply circuit, a voltage detection circuit, a temperature detection circuit, an overcurrent detection circuit, a locked rotor/short circuit protection circuit, a motor driving circuit, a motor forward/reverse rotation circuit, and an alarm prompt circuit;

fig. 2 is a circuit diagram of an MCU control circuit in the cable cutter controller with multiple protections according to the present invention shown in fig. 1;

fig. 3 is a circuit diagram of a sleep/power on circuit in a cable cutter controller with multiple protections according to the present invention shown in fig. 2;

fig. 4 is a circuit diagram of a MCU power supply circuit and a motor driving power supply circuit in the cable shear controller with multiple protection of the present invention shown in fig. 1;

fig. 5 is a circuit diagram of a voltage detection circuit, a temperature detection circuit and an alarm prompting circuit in the cable shear controller with multiple protection of the present invention shown in fig. 1;

fig. 6 is a circuit diagram of an overcurrent detection circuit, a locked-rotor/short-circuit protection circuit, a motor driving circuit and a motor forward/reverse circuit in the cable shear controller with multiple protection shown in fig. 1.

The following are marked in the figure: 11, an MCU control circuit; 12, a sleep/power on circuit; 13, an MCU power supply circuit; 14, a motor drive power supply circuit; 15, a voltage detection circuit; 16, a temperature detection circuit; 17, an overcurrent detection circuit; 18, a locked rotor/short circuit protection circuit; 19, a motor drive circuit; 20, a motor forward and reverse rotation circuit; and 21, an alarm prompt circuit.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper" and "lower" are used for indicating the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the indicated device or element must have a specific position, be constructed and operated in a specific position, and thus should not be construed as limiting the present invention.

Further, in the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, the cable shear controller with multiple protection of the present invention may include an MCU control circuit 11, a sleep/start circuit 12, an MCU power supply circuit 13, a motor driving power supply circuit 14, a voltage detection circuit 15, a temperature detection circuit 16, an overcurrent detection circuit 17, a stall/short circuit protection circuit 18, a motor driving circuit 19, a motor forward/reverse circuit 20, and an alarm prompt circuit 21; the sleep/start circuit 12 is electrically connected with the MCU power supply circuit 13 and the motor drive power supply circuit 14, respectively, the sleep/start circuit 12 controls the cable zero power consumption sleep and start, the MCU power supply circuit 13 converts the 18V dc voltage of the cable trimming battery into 5V dc voltage to supply power to the MCU control circuit 11, and the motor drive power supply circuit 14 converts the 18V dc voltage of the cable trimming battery into 15V to supply power to the motor drive circuit 19; the MCU control circuit 11 is electrically connected to the MCU power supply circuit 13, the voltage detection circuit 15, the temperature detection circuit 16, the overcurrent detection circuit 17, the locked rotor/short circuit protection circuit 18, the motor drive circuit 19, and the alarm prompt circuit 21, the voltage detection circuit 15 is used for detecting whether the battery of the cable cutter is over-voltage or low-voltage, the temperature detection circuit 16 is used for monitoring the temperature of the motor in real time, the overcurrent detection circuit 17 is used for monitoring whether the motor is over-current in real time, the locked rotor/short circuit protection circuit 18 is used for monitoring whether the motor is locked rotor or short-circuit in real time, the motor drive circuit 19 is used for driving the motor to work, and the alarm prompt circuit 21 is used for alarming; the motor drive power supply circuit 14 is electrically connected with the motor drive circuit 19; the overcurrent detection circuit 17 is electrically connected with the motor drive circuit 19 and the locked-rotor/short-circuit protection circuit 18 respectively; the motor driving circuit 19 is electrically connected with the motor forward and reverse rotation circuit 20, and the motor forward and reverse rotation circuit 20 controls the forward and reverse rotation of the motor.

Referring to fig. 2, fig. 2 is a circuit diagram of the MCU control circuit; in this embodiment, the MCU control circuit 11 includes an MCU, which is a 24-pin chip; the MCU model is CMS8M1010, and an operational amplifier and a comparator are arranged in the MCU model, the operational amplifier is electrically connected to the overcurrent detection circuit 17, and the comparator is electrically connected to the locked rotor/short protection circuit 18.

Referring to fig. 3, fig. 3 is a circuit diagram of a sleep/power on circuit; in this embodiment, the MOS transistor Q1 in the sleep/power-on circuit is turned on and off, so that the sleep of the whole circuit is realized, and zero loss is achieved after the sleep.

Referring to fig. 4, fig. 4 is a circuit diagram of the MCU power supply circuit and the motor driving power supply circuit; the MCU power supply circuit 13 is used for reducing the 18V direct current of the battery into 5V direct current through a voltage reduction chip, the model of the voltage reduction chip is 78L05, and the MCU power supply circuit 13 is used for providing working voltage for the MCU. The motor driving power supply circuit 14 steps down the 18V direct current of the battery into 15V direct current through a voltage-dropping chip, the model of the voltage-dropping chip is 78L15, and the driving power supply circuit 14 provides working voltage for the motor driving circuit 19.

Referring to fig. 5, fig. 5 is a circuit diagram of a voltage detection circuit, a temperature detection circuit and an alarm prompt circuit; in this embodiment, the voltage detection circuit 15 detects whether the battery is over-voltage or under-voltage. The temperature detection circuit 16 comprises a thermistor, the thermistor is fixedly arranged on the motor to monitor the temperature of the motor in real time, and after the set temperature is reached, the control circuit 11 controls the alarm prompt circuit 21 to give an alarm. The alarm prompt circuit 21 comprises a buzzer, and the control circuit 11 controls the buzzer to alarm.

Referring to fig. 6, fig. 6 is a circuit diagram of an overcurrent detection circuit, a locked-rotor/short-circuit protection circuit, a motor driving circuit, and a motor forward/reverse circuit; in this embodiment, the resistor RS1 of the over-current detection circuit 17 is a current detection resistor, and when the voltage passing through the resistor RS1 is amplified by an operational amplifier inside the MCU control circuit 11 during operation, and the amplified voltage value is greater than a preset value, the MCU controls the motor driving circuit 19 to stop driving the motor. The locked-rotor/short-circuit protection circuit 18 is electrically connected to a comparator inside the MCU control circuit 11, and is used to determine whether the motor is locked-rotor or short-circuited. The motor driving circuit 19 is electrically connected to the MCU control circuit 11, the over-current detection circuit 17, the driving power supply circuit 14, and the motor forward/reverse circuit 20, respectively.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A cable shear controller with multiple protection is characterized by comprising an MCU control circuit, a dormancy/startup circuit, an MCU power supply circuit, a motor drive power supply circuit, a voltage detection circuit, a temperature detection circuit, an overcurrent detection circuit, a locked rotor/short circuit protection circuit, a motor drive circuit, a motor forward and reverse rotation circuit and an alarm prompt circuit; the dormancy/startup circuit is electrically connected with the MCU power supply circuit and the motor drive power supply circuit respectively; the MCU control circuit is electrically connected with the MCU power supply circuit, the voltage detection circuit, the temperature detection circuit, the over-current detection circuit, the locked rotor/short circuit protection circuit, the motor drive circuit and the alarm prompt circuit respectively; the motor driving power supply circuit is electrically connected with the motor driving circuit; the overcurrent detection circuit is electrically connected with the motor drive circuit and the locked rotor/short circuit protection circuit respectively; the motor driving circuit is electrically connected with the motor forward and reverse rotation circuit.

2. The controller of claim 1, wherein the MCU control circuit comprises an MCU of type CMS8M 1010.

3. The cable shear controller with multiple protections according to claim 2, wherein an operational amplifier and a comparator are arranged inside the MCU, the operational amplifier is electrically connected to the over-current detection circuit, and the comparator is electrically connected to the locked rotor/short circuit protection circuit.

4. The cable shear controller with multiple protections according to claim 1, wherein the MCU power supply circuit steps down the 18 vdc of the battery to 5 vdc via a step-down chip, the step-down chip having a model number of 78L 05.

5. The cable shear controller with multiple protections of claim 1, wherein the motor-driven power supply circuit steps down the 18 vdc of the battery to 15 vdc via a step-down chip, the step-down chip having a model number of 78L 15.

6. The cable shear controller with multiple protections as set forth in claim 1, wherein said temperature detection circuit comprises a thermistor, said thermistor being fixedly mounted on the motor for monitoring the temperature of the motor in real time.

7. The cable cutter controller with multiple protections as set forth in claim 1, wherein said alarm prompting circuit comprises a buzzer.

8. The controller of claim 2, wherein the over-current detection circuit comprises a resistor RS1, which is a current detection resistor, and when the voltage across the resistor RS1 is amplified by an operational amplifier inside the MCU control circuit, and the amplified voltage value is greater than a predetermined value, the MCU controls the motor driving circuit to stop driving the motor.