TWM446456U - Wireless motor control system - Google Patents

Description

Wireless motor control system

This creation is about motor control, especially a control system that remotely controls the motor through a wireless mode and has a protective mechanism.

Nowadays, such as movable cranes, truck canvas covers or winches, it is dangerous to control and avoid the operator being too close, so that the state of the motor can be remotely controlled by a controller. Generally speaking, wireless radio frequency is used to pair to form a signal transmission channel. However, the frequency of industrial digital channels that are commonly used today is limited, so that it is easy to simultaneously transmit signals to other instruments or equipment in the same frequency band during operation, thereby causing mutual interference. For example, the vehicle body with the chip lock or other tools and motors with repeated frequency bands can only achieve the effect of limited distance remote control in operation, but the accuracy is extremely low and it is dangerous. In addition, the controller of the frequency mode must be reset again each time it is turned on, to check the frequency, or to be reconnected after the motor is stopped, and the reset operation is also required, which is quite inconvenient to use.

In addition, as mentioned above, the movable crane, the truck canvas cover or the winch machine and the like have no ANSI safety regulations to set the corresponding safety switch. Therefore, in the case of use, the motor is often over-current damaged and the motor is reduced. The situation of overcurrent damage is also one of the problems that must be solved at present.

Therefore, in order to solve the above problems, the author of the creation conceived a wireless motor control system capable of carrying a large current and using a fixed channel connection to avoid overlapping of other wireless transmission channels.

It is an object of the present invention to provide a wireless motor control system that can be digitally numbered by a processing element provided in a connection device with a motor and a remote control device is passed through the IEEE 802.15.4 standard specification. The Zigbee transmission method is connected to form a wireless transmission channel, and the remote control device sends a command signal to the connection device through the wireless transmission channel, thereby causing the motor to perform corresponding operations, and since each digit number is unique Therefore, the wireless transmission channel formed by the connection with the remote control device is also independent and unique, and the author uses the Zigbee transmission of the IEEE 802.15.4 standard specification to form a grouped network system, so that the remote control device can be effectively Avoid users' coincidence with other wireless channels while manipulating, and issue commands to the wrong motor or other implements.

Another object of the present invention is to provide a wireless motor control system which is provided with a current sensor and a relay in a connecting device connecting the motor, which can effectively control the current of the motor, if the current occurs in the motor Too large, the relay is immediately disconnected to stop the power supply to the motor, preventing the motor or the tools and articles it drives from being damaged, and the connecting device of the present invention can carry extremely high current.

In order to achieve the above objectives, the wireless motor control system of the present invention, The Zigbee for wireless transmission mode IEEE 802.15.4 standard is used to control the operation of a motor, comprising: at least one connecting device, the external portion is provided with a pair of motor connecting terminals, a pair of power connecting terminals and a first a switch, the pair of motor connection terminals and the pair of power connection terminals are respectively connected to the motor and a power source, wherein the first open relationship is used to control the operation state of the connection device, and the connection device internal system The method includes: a first control circuit board electrically connected to the pair of power connection terminals; a relay disposed on the first control circuit board and electrically connected to the pair of motor connection terminals for control a switching state of the motor; a current sensor is disposed on the first control circuit board, and is electrically connected to the pair of motor connection terminals and the relay for detecting the current of the motor, and the motor When the instantaneous current is too large, the relay automatically stops supplying power to the motor to stop the operation of the motor; and a second control circuit board is disposed at the inner end of the connecting device. And connecting to the first control circuit board through a line of wires, the second circuit board is provided with a processing component for receiving and transmitting the wireless signal sent by the user, and the processing component has a digit number; The device is provided with a plurality of function keys on the outer side and a control component is disposed therein, and the user is paired with the corresponding digital number by the function keys to connect the control element with the processing element to form a wireless transmission channel. And transmitting a signal to the connecting device through the wireless transmission channel and receiving by the processing component to control the motor to perform a corresponding action.

The connecting device is provided with a second switch for controlling the forward or reverse state of the motor, and the first switch and the second open relationship are respectively a finger switch.

In an embodiment, the pair of motor connection terminals and the pair of power connection terminals are respectively provided with a safety device to avoid burning due to reverse polarity of the positive and negative electrodes or excessive voltage of the power source.

Furthermore, the remote control device is provided with a cover body, and the remote control device is activated by itself after the cover body is lifted, the cover body picks up the remote control device and stops operating by itself, and the remote control device is provided with at least one warning light. And the at least one channel display lamp is configured to remind the user that the remaining power of the remote control device is too low, and when the user selects the wireless transmission channel through the function keys, the corresponding display light system is illuminated.

In order for your review board to have a clear understanding of the content of this creation, please refer to the following description only.

Please refer to Figures 1, 2, 3, 4 and 5, which are exploded views of the connecting device, a schematic diagram of the connecting device circuit, an exploded view of the remote control device, and a schematic view and a schematic view of the preferred embodiment of the preferred embodiment. The wireless motor control system 1 of the present invention includes at least one connecting device 10 and a remote control device 11.

The wireless motor control system 1 is for a user to control the operation of a motor 2 in a wireless transmission mode such as the Zigbee specification of the IEEE 802.15.4 standard, wherein the motor 2 is used for mounting on the motor 2 A portable hoist, or a winch (Winch), or a large item such as an electric truck trap cover for turning on or off the truck.

The connecting device 10 is provided with a pair of motor connecting terminals 101, a pair of power connecting terminals 102 and a first switch 103. The pair of motor connecting terminals 101 and the pair of power connecting terminals 102 are respectively connected to the connecting device 10 and the motor 2 And a power source (not shown) is connected, wherein the pair of power connection terminals 102 have a security protection setting to prevent the positive and negative poles of the power source from being reversed or the power supply is too large to cause burnout, preferably, The voltage source of the power source connected to the connecting device 10 ranges from 8V to 18V, and the maximum current that the connecting device 10 can withstand is 220A. However, the present invention is not limited thereto. The first switch 103 is used to control the active state of the connecting device 10. The connecting device 10 further has a second switch 104 for controlling the forward and reverse states of the motor 2, and the first switch 103 and the second switch 104 are a finger-type circuit switch. The connecting device 10 includes a first control circuit board 105, a relay 106, a current sensor 107 and a second control circuit board 108.

The first control circuit board 105 is disposed inside the connecting device 10 and electrically connected to the pair of power connection terminals 102, and the first control circuit board 105 is mounted according to the circuit layout to install the relay 106 and the current sensing. 107.

The relay 106 is disposed on the first control circuit board 105 And electrically connected to the pair of motor connection terminals 101, the relay 105 acts as an automatic safety switch to control the operating state of the motor 2, and if necessary, disconnects to stop the operation of the motor 2.

The current sensor 107 is also disposed on the first control circuit board 105, and is electrically connected to the pair of motor connection terminals 101 and the relay 106, respectively, for detecting the current of the motor 2, and the motor When the instantaneous current is too large, the relay 106 is automatically disconnected, and an open circuit is formed to stop supplying power to the motor 2 to stop the operation of the motor 2 to prevent the implement or the article from being damaged or the motor 2 from being damaged.

The second control circuit board 108 is disposed at the inner end of the connecting device 10 and is connected to the first control circuit board 105 through a row of wires 1081. The second control circuit board 108 is provided with a processing component 1082. The processing component 1082 has a digit number that is transmitted through the Zigbee transmission of the IEEE 802.15.4 standard specification to pair with the remote control device 11 and to receive and transmit signals from the remote control device 11.

A plurality of function keys 111 are disposed on the outer side of the remote control device 11, and a control element 112 is disposed therein. In the embodiment, the function keys 111 can be subdivided into an open button 111a, a close button 111b and a select button 111c. The control unit 112 records the digit number, and the user uses the select button 111c to Paired with the corresponding digit number, the processing element 1082 and the control element 112 pass the Zigbee transmission of the IEEE 802.15.4 standard specification. After the transmission mode is connected to form a wireless transmission channel, the remote control device 11 transmits the relevant operation command to the connection device 10 through the open button 111a and the close button 111b, and the signal is sent to the connection device 10 via the wireless transmission channel. And being processed and processed by the processing component 1082 to manipulate the motor 2 for corresponding actions.

In particular, the signal transmission between the remote control device 11 and the connection device 10 is Zigbee transmission using the IEEE 802.15.4 standard specification, compared to the conventional RF or infrared transmission, IEEE 802.15.4 standard specification. The Zigbee transmission system supports large-capacity network transmission and can form a grouped individual network with short delay, power saving, long transmission distance and secure encryption. And because the digit number is an independent and unique identification code, the wireless transmission channel generated by pairing with the remote control device 11 is also independent and unique, and is not interfered by wireless transmission of the remaining electronic devices, and the The connecting device 10 only accepts the signals sent by the control elements 112 corresponding to the digital labels and pairs them. This design makes the group of the creation more perfect and avoids mutual interference.

The remote control device 11 further includes a cover 113, at least one warning light 114 and at least one channel display lamp 115. The cover body 113 is connected to the remote control device 11, and the remote control device 11 is automatically activated after the cover body 113 is lifted. When the cover body 113 is lifted up, the remote control device 11 stops operating by itself, and if The body 113 is not picked up and the remote control device 11 stands by for a period of time, the remote control device Setting 11 will also stop working on its own.

The warning light 114 is used to remind the user that the remaining power of the remote control device 11 is too low, or is used as a warning light for the remote control device 11 to be paired with the connection device 10. In the embodiment, the warning light 114 is Set for plural.

When the user selects the wireless transmission channel through the selection button 111c, the corresponding channel display light 115 is illuminated to inform the user of the currently selected wireless transmission channel. In this embodiment, the channel display light The 115 series is a plural setting.

The remote control device 11 can simultaneously record a plurality of digit numbers of the connection device 10 through the control component 112. Therefore, the wireless transmission channel connected to the control component 112 is selected by using the selection key 111c. The different connecting device 10 is operated, and it is intended that the remote control device 11 simultaneously controls a plurality of the motor 2 to which the connecting device 10 is connected.

The creation system can be applied to a large-scale machine such as a canvas cover 3, a movable crane and a winch. In the application, the connection device 10 and the remote control device 11 are first opened, and the remote control device 11 is memorized by the control element 112. Each digit number is automatically searched for each connection device 10 having the digit number, and is connected with the connection device 10 selected by the user to form a corresponding wireless transmission channel. At this time, the user can pass the open button 111a and The closing button 111b controls the operation of the motor 2 to drive the implement for mounting the motor 2. Taking the canvas cover 3 as an example, the user can press and hold the open button. 111a transmits an open signal to the connecting device 10 through the Zigbee transmission of the IEEE 802.15.4 standard specification, so that the motor 2 operates and drives the canvas cover 3. If the user releases the open button 111a, the motor 2 is The operation will be stopped immediately, so that the distance of the canvas cover 3 can be specified according to the user's needs. On the contrary, when the user presses the close button 111b for a long time, a close signal is sent to the connecting device 10, the motor 2 is operated and the canvas cover 3 is moved in the opposite direction. However, if the user does not pay attention to the canvas cover 3 has moved to the maximum distance, the motor 2 generates a great instantaneous current because the canvas cover 3 has moved to the topmost or bottom end due to the current sensor. The 107 system continuously senses the current of the motor 2, so when the situation occurs, the relay 106 is automatically disconnected to block the power supply of the motor 2, effectively preventing the motor 2 from being damaged due to excessive current, effectively extending the motor 2 The service life and the safety of the user.

The wireless motor control system 1 of the present invention can remotely control a motor 2 mounted on a winch or a movable crane or a large motor for manipulating the canvas cover 3 through the remote control device 11. The connecting device 10 is connected to the motor 2 and communicates with the remote control device 11 in a Zigbee transmission manner according to the IEEE 802.15.4 standard by means of a serial number uniquely and uniquely existing therein to form a wireless transmission channel corresponding to each digit number. The user sends a command to the connecting device 10 through the wireless transmission channel to control the motor 2 to perform a corresponding action. Because the control element 112 is The record has a plurality of digit numbers. Through a simple setting, the user can select different wireless transmission channels through the selection button 111c to control different connection devices 10, and the connection device 10 and the remote control device can be different. The 11 pairing connection is controlled to achieve grouping. In addition, the connecting device 10 is provided with the relay 106 and the current sensor 107, and can detect the current of the motor 2 at any time, and immediately turn off the relay 107 to stop when the motor 2 generates an instantaneous maximum current. The motor 2 operates to avoid damage. Among them, in the present creation, the connecting device 10 can withstand a current of about 220 A, which is far beyond the amount of current that can be carried by the conventional safety control device.

However, the above descriptions are only for the preferred embodiment of the present invention and are not intended to limit the scope of the present invention; therefore, the equivalent changes and modifications made without departing from the spirit and scope of the present invention should be Within the scope of this creation's patent.

In summary, the wireless motor control system of this creation has the patented creativity and the value of the use of the industry; the applicant filed a new patent application with the bureau in accordance with the provisions of the Patent Law.

1‧‧‧Wireless motor control system

10‧‧‧Connecting device

101‧‧‧Motor connection terminal

102‧‧‧Power connection terminal

103‧‧‧First switch

104‧‧‧Second switch

105‧‧‧First control board

106‧‧‧Relay

107‧‧‧ Current Sensor

108‧‧‧Second control circuit board

1081‧‧‧ cable

1082‧‧‧Processing components

11‧‧‧Remote control

111‧‧‧ function keys

111a‧‧‧Open button

111b‧‧‧Close button

111c‧‧‧Selection key

112‧‧‧Control elements

113‧‧‧ cover

114‧‧‧Warning lights

115‧‧‧Channel display lights

2‧‧‧Motor

3‧‧‧canvas cover

Fig. 1 is an exploded view of the connecting device of the preferred embodiment of the present invention.

Fig. 2 is a schematic view showing the wiring of the connecting device of the preferred embodiment of the present invention.

Figure 3 is an exploded view of the remote control device of the preferred embodiment of the present invention.

Figure 4 is a perspective view of a preferred embodiment of the present invention.

Figure 5 is a schematic diagram of the application of the preferred embodiment of the present invention.

10‧‧‧Connecting device

101‧‧‧Motor connection terminal

102‧‧‧Power connection terminal

103‧‧‧First switch

104‧‧‧Second switch

105‧‧‧First control board

106‧‧‧Relay

107‧‧‧ Current Sensor

108‧‧‧Second control circuit board

1082‧‧‧Processing components

11‧‧‧Remote control

Claims (6)

A wireless motor control system for controlling the operation of a motor by a user using a Zigbee of the IEEE 802.15.4 standard for wireless transmission, comprising: at least one connecting device having a pair of motor connecting terminals and a pair of power sources a connection terminal and a first switch, the pair of motor connection terminals and the pair of power connection terminals are respectively connected to the motor and a power source, and the first open relationship is used to control the operation state of the connection device, The connection device includes: a first control circuit board electrically connected to the pair of power connection terminals; a relay disposed on the first control circuit board and electrically connected to the pair of motor connection terminals Connected to control the switch state of the motor; a current sensor is disposed on the first control circuit board, and is electrically connected to the pair of motor connection terminals and the relay for detecting the current of the motor The size, when the current is too large at the moment of the motor, the relay automatically stops supplying power to the motor to stop the operation of the motor; and a second control circuit board is connected to the connection Connected to the top of the device and connected to the first control circuit board through a line of wires, the second control circuit board is provided with a processing component for receiving and transmitting the wireless signal sent by the user, and The processing component has a digit number; a remote control device has a plurality of function keys on the outer side and a control component is internally provided, and the user uses the function keys to pair with the corresponding digit number to make the control component The processing elements are coupled to form a wireless transmission channel and transmit signals to and received by the processing device through the wireless transmission channel to operate the motor for corresponding actions. The wireless motor control system of claim 1, wherein the connecting device is provided with a second switch for controlling the forward or reverse state of the motor. The wireless motor control system of claim 2, wherein the first switch and the second open relationship are respectively a finger-type circuit switch. The wireless motor control system of claim 1, wherein the remote control device is provided with a cover body, and the remote control device is self-activated after the cover body is lifted, and the cover body picks up the remote control device Stop working. The wireless motor control system of claim 1, wherein the remote control device is provided with at least one warning light to remind the user that the remaining power of the remote control device is too low. The wireless motor control system of claim 1, wherein the remote control device is provided with at least one channel display light, and when the user selects the wireless transmission channel through the function keys, the channel display light is corresponding to the channel. The system lights up.