TWM493822U - Improved structure of motor controller - Google Patents

Description

Motor controller improved structure

The present invention relates to a motor controller, and more particularly to an innovative structure type of a motor controller having an overload protection function and a greatly improved detection precision.

By press, the motor controller refers to a device that is dedicated to controlling the motion state of the existing motor. The motor controller is generally used to control the motor operating state of the existing device equipment such as the rotational speed, the forward and reverse direction, the running opening and closing time, and the like.

However, the conventional motor controller structure type still finds some problems in the actual use experience: for example, the problem of controlling the accuracy part, the control precision of the conventional motor controller is rough, and the precision control function cannot be achieved, especially when When the motor to be controlled is a chip machine, a metal scrap waste extruder, etc., the motor drive mechanism of the equipment often has chipping and jamming, and it is impossible to continue the operation during the operation. When the situation occurs, the motor current value is not large, and usually does not exceed 3 amps. Therefore, the general overcurrent sensor installed in the conventional motor controller cannot be perceived at all, thus causing the motor and its The relevant institutions of the driven equipment will often continue to operate under heavy load conditions, resulting in a problem of greatly shortening the service life and shortcomings.

Another problem that is common in conventional motor controller structures is the part of the outer casing; since the outer casing of the conventional motor controller is usually stamped and formed by sheet metal, the upper and lower casing phases of the outer casing are There are often gaps in the joints. These slits may be able to withstand the entry of external water droplets, but they cannot resist the infiltration of moisture. Over time, the internal circuit structure of the motor controller will be corroded, short-circuited, poorly contacted, etc. due to moisture. The problem, this problem is also a secondary issue that this creation needs to overcome.

Therefore, in view of the problems existing in the above-mentioned conventional motor controller structure, how to develop an innovative structure that is more ideal and practical, is expected by the users, and is also related to the industry's efforts to develop breakthrough goals and directions.

In view of this, the creator has been engaged in the manufacturing development and design experience of related products for many years. After the detailed design and careful evaluation of the above objectives, the creator will have a practical and practical creation.

The main purpose of this creation is to provide a motor controller improved structure, and the technical problem to be solved is to make an innovative breakthrough in how to develop a new type of motor controller structure type that is more ideal and practical. The motor controller includes: an outer casing comprising a lower seat and an upper cover, wherein the lower seat is provided with an input connector and an output connector, and a top surface of the upper cover is provided with a display control panel; The board is set at a position corresponding to the upper cover of the outer casing and the display control panel; the lower circuit board is set in the lower seat of the outer casing and electrically connected to the upper circuit board, and the motor is provided on the lower circuit board. Reverse controller.

The technical features of the present problem solving problem mainly include: an overcurrent protection circuit module, including a power connector and a microprocessor having a programmable function, wherein the current comparator is disposed on the lower circuit board and The motor forward-reverse controller is electrically connected, and the microprocessor is disposed on the upper circuit board or the lower circuit board and is electrically connected to the motor forward-reverse controller, and the comparator is used to detect the current value when the reading motor is running. And transmitting the read signal to the microprocessor for comparison with a preset normal current parameter to determine whether the motor is overloaded, wherein the minimum current detection value of the current comparator is 0.01 amp; and when the microprocessor determines that the motor is overloaded When the motor forward and reverse controller automatically controls the motor to perform a reverse rotation of a preset stroke, it is then returned to the forward rotation motion to achieve the overload protection function.

With this innovative and unique design, this creation can make the motor controller achieve the practical improvement of the current detection precision and the effect of better overload protection function and better industrial utilization efficiency.

Another purpose of the present invention is that the lower seat and the upper cover of the outer casing are made of a plastic material, and the combination of the lower seat and the upper cover is further provided with another technical feature of the sealing pad. In order to prevent moisture from penetrating into the interior of the casing, the advantages of better sealing and moisture-proof effect, and maintaining the dry state of the internal circuit structure to prolong the service life of the motor controller are achieved.

Please refer to Figures 1, 2, 3 and 4 for a preferred embodiment of the improved structure of the motor controller. However, these embodiments are for illustrative purposes only and are not limited by this structure in patent applications. . The motor controller A controls the movement state (such as the rotation speed, the forward and reverse direction, the operation opening and closing time, etc.) of the motor 05 (as shown in FIG. 4); the motor controller A includes: a casing 10, The utility model comprises a combination of a lower seat 11 and an upper cover 12, wherein an input joint 13 and an output joint 14 are arranged on one side of the lower seat 11, and a display control panel 15 is arranged on the top surface of the upper cover 12; The circuit board 20 is set at a position corresponding to the upper cover 12 of the outer casing 10 and the display control panel 15; the lower circuit board 30 is set in the lower seat 11 of the outer casing 10 and electrically connected to the upper circuit board 20, The lower circuit board 30 is provided with a motor forward and reverse controller 31 (by means of driving the forward and reverse motion states of the control motor 05); and the method includes: an overcurrent protection circuit module 40, including one of the electrical connections And a microprocessor 42 having a programmable function, wherein the current comparator 41 is disposed on the lower circuit board 30 and electrically connected to the motor forward and reverse controller 31, and the microprocessor 42 is disposed on the upper circuit board 20 or The lower circuit board 30 is electrically connected to the motor forward and reverse controller 31 The current comparator 41 is configured to detect the current value when the read motor 05 is in operation, and transmit the read signal to the microprocessor 42 for comparison with a preset normal current parameter B (as shown in FIG. 4). To determine whether the motor 05 is overloaded, wherein the minimum current detection value of the comparator 41 is 0.01 amp; and wherein when the microprocessor 42 determines that the motor 05 is overloaded, the motor is automatically controlled by the motor forward/reverse controller 31. After performing a reverse rotation of a predetermined stroke, it is then returned to the forward rotation motion, thereby achieving the function of overload protection.

As shown in FIG. 3, the lower seat 11 and the upper cover 12 of the outer casing 10 can be made of a plastic material, and the combined portion of the lower seat 11 and the upper cover 12 can be assembled with a flexible one. The sealing pad 50 (which may be a rubber pad body, a foam pad body, a silicone pad body, etc., in this case is a rubber ring type), thereby preventing moisture from penetrating into the inside of the casing 10.

As shown in the first and second figures, the display control panel 15 can include an initialization circuit automatic setting button 60. The initialization circuit automatically sets the operation of the key 60 (for example, the normal pressure several seconds starting mode), and can be in the motor 05. In the initial operation, the current value of the motor 05 is normally detected and set to obtain and establish the normal current parameter B (only shown in FIG. 4).

As shown in FIG. 5, one side of the lower seat 11 (or the upper cover 12) of the outer casing 10 may further be provided with an external control line output hole 16 through which the outer control circuit output hole 16 is provided. 30 externally connected to an external control wire 70 for electrically connecting to an external controller 80 disposed outside the motor controller A, the external controller 80 having the function of operating the motor controller A Thereby, the motor controller A is brought to a function that can be controlled externally.

Among them, the motor controller A is suitable for use as a motor 05 control device of a conventional chip breaker or a metal chip waste extruder. The reason why the motor controller A disclosed in the present invention is suitable for the control of the motor 05 of the front loader is that the chip machine and the metal chip waste extruder often have the action mechanism of the machine during the general operation process. In the case of jamming, at this time, the motor 05 will continue to operate in the current situation, causing the severe situation that its heavy load continues to operate; however, if the motor controller A of the present invention is used for control, The minimum current detection value of the current comparator 41 in the overcurrent protection circuit module 40 reaches a high precision detection level of 0.01 amp, and the motor 05 current value signal read during the detection is transmitted to the micro processing. The device 42 performs a precise comparison with the preset normal current parameter B, so that it can be accurately judged whether the motor 05 is overloaded (that is, a slight change in the motor 05 current can be detected), and when the microprocessor 42 determines that the motor 05 is In the overload state, the motor forward-reverse controller 31 automatically controls the motor 05 to perform a reverse rotation of a predetermined stroke before returning to the forward rotation motion. This action design allows the machine to function. The state in which the bite is stuck is obtained as a relaxation mitigating effect. When the forward rotation is resumed, the original stuck condition may be excluded, and the motor 05 and the implement are returned to the normal operating state to achieve a better overload protection function; The number of times of reversing the action and then returning to the forward rotation operation is not limited to a single time, and may be set to a state of multiple repeated operations, and may further be set. If the forward and reverse rotation actions are over, if the microprocessor 42 still judges When the motor 05 is in an overload state, the motor 05 can be automatically stopped and an alarm is issued (for example, through a buzzer) to notify the technician to manually eliminate the problem.

Efficacy Description: The "motor controller improved structure" disclosed in the present invention mainly comprises the current-current protection circuit module comprising a current comparator and a microprocessor, and the minimum current detection value of the current comparator is 0.01 amp; And when the microprocessor judges that the motor is overloaded, it will automatically control the motor to perform the reversal action and then return to the forward rotation action and other innovative unique structural types and technical features, so that the creation is compared with the conventional structure proposed in [Prior Art]. It can make the motor controller achieve the practical improvement of the current detection precision and the effect of better overload protection function and the better industrial utilization benefit, especially when applied to the chip machine and the metal chip waste extruder. This is especially effective when used for motor control purposes.

On the other hand, the present invention can be constructed by using the lower seat and the upper cover of the outer casing as a plastic material, and the combination of the lower seat and the upper cover is further provided with another technical feature of the sealing pad, thereby effectively It prevents the moisture from infiltrating into the inside of the casing, thereby achieving the advantages of better sealing and moisture-proof effect, keeping the internal circuit structure dry and prolonging the service life of the motor controller.

The disclosures of the above embodiments are used to specifically explain the present creation, and although the descriptions are made through specific terms, the scope of patents of the novel creation cannot be limited thereby; those skilled in the art can understand the spirit of the creation. Changes and modifications are made to the equivalent purpose, and such changes and modifications are to be included in the scope defined by the scope of the patent application as described later.

A‧‧‧Motor controller 05‧‧ ‧ Motor 10‧‧‧Enclosure 11‧‧‧Lower 12‧‧‧Upper cover 13‧‧‧ Input connector 14‧‧‧ Output connector 15‧‧‧ Display control panel 16 ‧‧‧External control circuit output hole 20‧‧‧Upper board 30‧‧‧Lower board 31‧‧‧ Motor forward and reverse controller 40‧‧‧Overcurrent protection circuit module 41‧‧‧ Current comparator 42 ‧‧‧Microprocessor 50‧‧‧Fixed pad 60‧‧‧Initialization circuit automatic setting button 70‧‧‧External control wire 80‧‧‧External controller B‧‧‧Normal current parameters

Figure 1 is a combined perspective view of a preferred embodiment of the present authoring structure. Figure 2 is an exploded perspective view of a preferred embodiment of the present authoring structure. Figure 3 is a partial cross-sectional elevational view of a preferred embodiment of the present construction. Figure 4 is a block diagram of the circuit structure of this creation. Fig. 5 is a view showing an embodiment in which the outer casing of the present invention is further provided with an external control line output hole.

A‧‧‧Motor Controller

11‧‧‧The lower seat

12‧‧‧Upper cover

13‧‧‧Input connector

14‧‧‧Output connector

15‧‧‧Display control panel

20‧‧‧Upper board

30‧‧‧Lower board

31‧‧‧Motor forward and reverse controller

40‧‧‧Overcurrent protection circuit module

41‧‧‧ current comparator

42‧‧‧Microprocessor

50‧‧‧Clock liner

60‧‧‧Initialization circuit automatic setting button

Claims (5)

An improved structure of a motor controller for controlling a state of motion of an existing motor; the motor controller comprising: a casing comprising a combination of a lower seat and an upper cover, wherein the lower seat is provided An input connector and an output connector are provided. The top surface of the upper cover is provided with a display control panel; an upper circuit board is set at a position corresponding to the upper cover of the outer casing and the display control panel; the lower circuit board, the group setting is located The lower seat of the outer casing is electrically connected to the upper circuit board, and the lower circuit board is provided with a motor forward and reverse controller; the characteristic comprises: an overcurrent protection circuit module, including one of the electrical connection current comparators And a microprocessor having a programmable function, wherein the current divider is disposed on the lower circuit board and electrically connected to the motor forward and reverse controller, and the microprocessor is disposed on the upper circuit board or the lower circuit board and is opposite to the motor The controller is electrically connected, and the comparator is configured to detect the current value when the reading motor is running, and transmit the read signal to the microprocessor for comparison with a preset normal current parameter. Determine whether the motor is overloaded, wherein the minimum current detection value of the current comparator is 0.01 amp; and wherein, when the microprocessor determines that the motor is overloaded, the motor forward and reverse controller automatically controls the motor to perform a preset stroke After the move, let it return to the forward motion, in order to achieve the function and purpose of overload protection. The improved structure of the motor controller according to claim 1, wherein the lower seat and the upper cover of the outer casing are made of a plastic material, and the combination of the lower seat and the upper cover is more elastic. A tight liner to prevent moisture from penetrating into the interior of the enclosure. According to the improved structure of the motor controller according to claim 2, wherein the display control panel comprises an initialization circuit automatic setting button, and the initialization circuit automatically sets the key operation, and can detect the initial operation of the motor. And setting a current value of the normal operation of the motor to obtain and establish the normal current parameter. According to the improved structure of the motor controller of claim 3, wherein the lower seat or the upper cover side of the outer casing is further provided with an external control line output hole, and the external control line output hole is provided for the lower The circuit board is externally connected to an external control wire for electrically connecting to an external controller disposed outside the motor controller, and the external controller has a function of controlling the motor controller, thereby making the motor The controller reaches a function that can be controlled externally. The motor controller improved structure according to the fourth aspect of the invention, wherein the motor controller is suitable for use as a motor control device for an existing chip breaker or a metal chip waste extruder.