CN217469796U - Multi-motor operation control equipment and system - Google Patents
Multi-motor operation control equipment and system Download PDFInfo
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- CN217469796U CN217469796U CN202220646918.3U CN202220646918U CN217469796U CN 217469796 U CN217469796 U CN 217469796U CN 202220646918 U CN202220646918 U CN 202220646918U CN 217469796 U CN217469796 U CN 217469796U
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Abstract
The utility model relates to a many motor operation controlgear and system, this many motor control gear mainly include power control device and on-off control device, power control device with on-off control connects, power control device is through receiving control command and output target signal to on-off control device, on-off control device basis the on-off link of at least the same kind in the at least two tunnel switch links of target signal control switches on, works as the switch link of at least the same kind switches on the back, power control device exports three phase current extremely through this switch link the motor that switch circuit corresponds all the way at least, so that the motor operation has realized when practicing thrift motor control equipment cost and reducing motor control equipment volume, controls a plurality of motors.
Description
Technical Field
The utility model relates to an electric machine control field especially relates to a many motors operation control equipment and system.
Background
In the machine tool and petrochemical industry, a plurality of motors are required to work, but when the motors work, the motors need to be controlled to achieve different purposes in different occasions. In the prior art, two frequency converters are mostly adopted to respectively control corresponding motors or two additional alternating current relays are added to control a plurality of motors to realize the control of the plurality of motors, but the motors are controlled by the above method, so that the technical problems of large volume and high cost exist when the plurality of motors are controlled.
SUMMERY OF THE UTILITY MODEL
The utility model discloses embodiment mainly provides a many motors operation control equipment and system, has bulky and with high costs technical problem when aiming at solving many motors of control among the prior art.
In order to solve the above technical problem, the utility model discloses a technical scheme that embodiment adopted is: there is provided a multi-motor operation control apparatus including:
a power control device for outputting a target signal according to a received control instruction;
the switching control device comprises at least two switching links, and each switching link in the at least two switching links is used for being connected with a motor;
the switch control device is used for receiving the target signal and controlling at least one of the at least two switch links to be conducted according to the target signal, and the power supply control device is also used for outputting three-phase current generated when the motor runs to the motor connected with the conducted switch link through the conducted switch link.
Optionally, the power control device comprises a relay and a three-phase power supply,
the relay is used for outputting the target signal to the switch control device according to the received control instruction so as to enable at least one switch link in the at least two switch links to be conducted;
and the three-phase power supply is used for outputting three-phase current generated when the motor runs to the motor connected with the conducted switch link through the conducted switch link.
Optionally, the relay includes a power supply and at least two terminals, the power supply is electrically connected to the at least two terminals respectively, the at least two terminals are electrically connected to the at least two switch links in a one-to-one correspondence, the at least two switch links are also electrically connected to the power supply respectively,
when the control instruction indicates that at least one of the at least two terminals is closed, the power supply outputs the target signal to a switch link connected with the closed terminal so as to conduct the switch link.
Optionally, the switch link includes a contactor module,
the first end of the contactor module is electrically connected with the relay, the second end of the contactor module is connected with the three-phase power supply, and the third end of the contactor module is connected with the motor;
and the first end of the contactor module is used for receiving the target signal and controlling the conduction of the second end connected with the three-phase power supply according to the target signal, so that a motor connected with the third end works.
Optionally, the contactor module includes two sets of contactor modules at least, and each group the contactor module includes three direct current contactor.
Optionally, the dc contactor includes an attraction coil, a fixed contact and a moving contact, the attraction coil is electrically connected to the relay, the fixed contact is electrically connected to the three-phase power supply, the moving contact is connected to the motor,
when the attraction coil receives the target signal, the fixed contact and the moving contact are closed, so that the three-phase power supply provides working voltage for the motor.
Optionally, the dc contactor is 24V or 12V.
Optionally, the power control device includes a frequency converter.
In order to solve the above technical problem, the utility model discloses another technical scheme that embodiment adopted is: the multi-motor operation control system comprises the multi-motor operation control device and at least two motors, wherein the at least two motors are respectively connected with at least two switch links in the multi-motor operation control device in a one-to-one correspondence mode.
The multi-motor operation control device mainly comprises a power supply control device and a switch control device, wherein the power supply control device is used for outputting a target signal according to a received control instruction, the switch control device comprises at least two switch links, each switch link in the at least two switch links is used for being connected with a motor, the switch control device is used for receiving the target signal and controlling at least one switch link in the at least two switch links to be conducted according to the target signal, and the power supply control device is also used for outputting three-phase current generated when the motor operates to the motor connected with the conducted switch link through the conducted switch link. The embodiment of the utility model provides a switch link switches on through controlling at least all the way according to target signal to the control motor begins to operate, when having realized controlling a plurality of motors, has practiced thrift controlgear's cost and has reduced the volume.
Drawings
One or more embodiments are illustrated in drawings corresponding to, and not limiting to, the embodiments, in which elements having the same reference number designation may be represented as similar elements, unless specifically noted, the drawings in the figures are not to scale.
Fig. 1 is a schematic view of an application scenario provided by an embodiment of the present invention;
fig. 2 is a block diagram of a multi-motor operation control device according to an embodiment of the present invention;
fig. 3 is a circuit diagram of a multi-motor control system according to an embodiment of the present invention;
fig. 4 is a flowchart of a method for controlling operation of multiple motors according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
It should be noted that, if there is no conflict, the features in the embodiments of the present invention may be combined with each other, and all are within the scope of the present invention. Additionally, while a division of functional blocks is made within a device diagram, with a logical order shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the division of blocks in the device diagram, or the order in the flowchart.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Please refer to fig. 1, fig. 1 is a schematic diagram of an application scenario provided by an embodiment of the present invention, the application scenario includes a multi-motor operation control system 2 with an upper computer 1, the multi-motor control system 2 includes a multi-motor control device 20 and a motor 30-motor N, the upper computer 1 is configured to output a control command to the multi-motor operation control device 20, so that the multi-motor control device 20 is connected to at least one motor, and when the motor control device 20 is connected to the at least one motor, the upper computer 1 is further configured to send a voltage control signal, so that the multi-motor control device 20 outputs a three-phase voltage to the at least one motor, thereby controlling the at least one motor to operate.
Specifically, referring to fig. 2, fig. 2 is a block diagram of a multi-motor operation control device according to an embodiment of the present invention, and as shown in fig. 2, the multi-motor operation control device 20 includes a power control device 201 and a switch control device 202.
The power control device 201 is connected to the switch control device 202, and the switch control device 202 includes at least two switch links, each of the at least two switch links is used to connect a motor, that is, the motors 30-N are connected to the switch links in a one-to-one correspondence. The power supply control device 201 is configured to output a target signal to the switch control device 202 according to a received control instruction, and after receiving the target signal, the switch control device 202 controls at least one of the at least two switch links to be turned on according to the target signal, and at this time, the power supply control device 201 outputs three-phase power to a motor corresponding to the turned on switch circuit through the turned on switch link, so that the corresponding motor operates.
Specifically, the power control device 201 includes a relay and a three-phase power supply, and the relay and the three-phase power supply are respectively connected to the switch control device 202. The relay is used for controlling the circuit, and can realize the function of controlling another path or a plurality of paths of signals by one path of control signal to complete the control of starting, stopping, linkage and the like.
The relay is configured to output the target signal to the switch control device 202 according to the received control instruction, so as to turn on at least one of the at least two switch links, and the three-phase power supply is configured to output a three-phase current generated when the motor operates to the motor connected to the turned-on switch link through the turned-on switch link. The target signal may be a current signal or a voltage signal, the target signal is mainly used for conducting the at least one switching link, and the three-phase power supply may output a 220V phase voltage or a 380V line voltage.
The relay comprises a power supply and at least two terminals, the power supply is electrically connected with the at least two terminals respectively, the at least two terminals are electrically connected with the at least two switch links in a one-to-one correspondence manner, the at least two switch links are also electrically connected with the power supply respectively, and when the control instruction indicates that at least one of the at least two terminals is closed, the power supply outputs the target signal to the switch link connected with the closed terminal, so that the switch link is conducted.
Specifically, the control instruction may be output by the upper computer 40, or may be manually operated, and when a certain motor is required to operate, the upper computer 40 outputs the control instruction to a terminal corresponding to the certain motor, so that the terminal is closed, and at this time, the current output target signal is transmitted to the switch link connected to the corresponding terminal, so that the switch link is turned on, and thus the certain motor is controlled to operate.
In some embodiments, the power control device 201 includes a three-phase power supply and at least two terminals, the terminals are connected to the at least two switch links in a one-to-one correspondence manner, when a certain motor needs to work, the upper computer 40 outputs a target signal to the terminal corresponding to the certain motor, so that the switch link corresponding to the terminal is turned on, and the three-phase power supply outputs a three-phase current to the certain motor through the corresponding switch link, so as to control the certain motor to operate.
The switch link includes the contactor module, the first end of contactor module with the relay electricity is connected, the second end of contactor module with three phase current connects, the third end of contactor module with the motor is connected. And the first end of the contactor module is used for receiving the target signal and controlling the conduction of the second end connected with the three-phase power supply according to the target signal, so that a motor connected with the third end works.
Specifically, after a certain terminal in the relay receives a control instruction, current in the direct current power supply flows into the contact module through the certain terminal, at this time, the contact module is conducted due to the current, and the three-phase power supply outputs three-phase current to a corresponding motor through the conducted contact module so as to enable the motor to operate.
The contactor module at least comprises two groups of contactor modules, each group of contactor module comprises three direct current contactors, wherein the direct current contactors are mainly controlled by the direct current relays, the direct current contactors are mainly used for a main circuit, and the direct current contactors are large in contact size and high in bearing capacity, so that the direct current contactors are used for controlling weak current to strong current. The direct current contactor includes actuation coil and switch, wherein, the switch can be normally open switch also can be normally closed switch, and is concrete, works as direct current contactor's actuation coil circular telegram back, produce magnetic field because of having the electric current among the actuation coil for quiet iron core produces electromagnetic attraction and moves the iron core, and drives the contact action, at this moment, normally open switch is closed, or normally closed switch disconnection. When the coil is powered off, the electromagnetic attraction disappears, and the armature is released under the action of the release spring to restore the contact, namely, the normally open switch is opened and the normally closed switch is closed.
In this embodiment, the dc contactor includes an attraction coil and a normally open switch, and the normally open switch includes a fixed contact and a moving contact. The attraction coil is electrically connected with the relay, the static contact is electrically connected with the three-phase power supply, and the moving contact is connected with the motor; or, the moving contact is electrically connected with the three-phase power supply, and the static contact is connected with the motor; when the attraction coil receives the target signal, the fixed contact and the moving contact are closed, so that the three-phase power supply provides working voltage for the motor. Wherein, the direct current contactor is 24V or 12V.
In some embodiments, the power control device 201 may be a frequency converter.
Referring to fig. 3, fig. 3 is a circuit diagram of a multi-motor control system according to an embodiment of the present invention, as shown in fig. 3, the multi-motor control system includes a frequency converter, a 24V dc contactor, a motor 1 and a motor 2, wherein the frequency converter includes a 24V dc power supply, a three-phase voltage UVW, and switches Y1 and Y2; the 24V direct current contactor comprises pull-in coils K11, K12, K13, K21, K22 and K23 and corresponding normally open switches. The negative pole of the 24V dc power supply is connected to the fixed contacts of the switch Y1 and the switch Y2, the positive pole of the 24V dc power supply is connected to the first ends of the attracting coils K11, K12, K13, K21, K22, K23, the second ends of the attracting coils K11, K12, K13 are connected to the moving contact of the switch Y1, the moving contacts of the attracting coils K21, K22, K23 are connected to the moving contact of the switch Y2, the fixed contacts of the switches K2, K2 corresponding to the attracting coils are connected to the UVW of the three-phase voltage, the fixed contacts of the switches K2, K2 corresponding to the attracting coils are connected to the motor 1, and the switches K2, K2 corresponding to the attracting coils are connected to the motor 362.
Specifically, when the switch Y1 is closed, the 24V dc power supply starts to supply power to the 24V dc contactor through the switch Y1, that is, the pull-in coils K11, K12, and K13 are powered on, and meanwhile, the normally open switches K11, K12, and K13 corresponding to the pull-in coils K11, K12, and K13 are closed, and when the normally open switches K11, K12, and K13 are closed, the three-phase voltage UVW of the frequency converter respectively supplies three-phase current to the motor 1 through the switches K11, K12, and K13, so that the motor 1 starts to operate. Based on the above steps, when the Y2 is closed, the three-phase voltage UVW powers the motor 2 through the switches K21, K22, K23, so that the motor 2 starts to operate; when the switch Y1 and the switch Y2 are simultaneously closed, the motor 1 and the motor 2 are simultaneously started to operate.
The embodiment of the utility model provides a many motor control equipment, through control command output target signal to the on-off control device according to power control device receives, on-off control device basis the on-off link of at least the same kind in the two tunnel switch links of target signal control switches on, works as the switch link of at least the same kind switches on the back, power control device outputs three phase current extremely through this switch link the motor that switch circuit corresponds all the way at least, so that the motor operation has realized when practicing thrift motor control equipment cost and reducing motor control equipment volume, controls a plurality of motors.
Referring to fig. 4, fig. 4 is a flowchart of a method of controlling multiple motor operation according to an embodiment of the present invention, where the method of controlling multiple motor operation is applied to a device for controlling multiple motor operation, as shown in fig. 4, the method of controlling multiple motor operation includes the following steps:
and S01, receiving a control command.
Specifically, the control instruction is used for controlling a certain terminal in the power control device to be turned on, so that a target signal is output to the switch link through the terminal.
Many motor operation controlgear includes power controlling means, power controlling means can be the converter, the converter includes direct current relay and three phase current, wherein, direct current relay is used for control circuit, through direct current relay can realize with the function of control signal control another way or several signals of the same kind, accomplishes control such as start, stop, linkage. When the upper computer sends a control command, the direct current relay receives the control command.
And S02, outputting a target signal according to the received control command.
The multi-motor operation control device further comprises a switch control device, the switch control device comprises at least two switch links, and the target signal is used for enabling at least one switch link in the switch control device to be conducted.
Specifically, the switch link is used for connecting the three-phase power and the motor, and when the direct current relay receives the control instruction, a target signal is output to the switch link corresponding to the control instruction according to the control instruction, and at this time, the corresponding switch link is turned on according to the target signal.
And S03, controlling at least one switch link in the at least two switch links to be conducted according to the target signal.
And after the power supply control device receives a control instruction, outputting a target signal according to the control instruction, and controlling at least one switch link in the at least two switch links to be conducted by the switch control device according to the target signal.
Specifically, the switch link includes at least two sets of contact module, wherein, the contact module includes three direct current contactor at least, direct current contactor passes through direct current relay control, the contactor includes actuation coil and switch, works as the host computer sends control command extremely behind the direct current relay, direct current relay basis in control command output target signal to the direct current contactor that corresponds, wherein, the signal of telecommunication all the way in the direct current relay is used for controlling three direct current contactor, actuation coil among the three direct current contactor receives behind the target current, produce induced-current, make normally open switch among the direct current contactor is closed. At this time, the three-phase power in the frequency converter outputs three-phase current to the corresponding motor through the three direct current contactors, so that the corresponding motor operates.
And S04, outputting the three-phase current when the motor runs to the motor connected with the conducted switch link through the conducted switch link.
And when the at least one switch link is conducted, the power supply control device outputs three-phase current to the corresponding motor through the conducted switch link so as to enable the corresponding motor to operate.
Specifically, when the at least one switch link is turned on, that is, the normally open switches in the at least three dc contactors are closed, at this time, the three-phase power is connected to the corresponding motors through the normally open switches, and meanwhile, the three-phase power in the frequency converter outputs three-phase current to each of the corresponding motors, and the corresponding motors start to operate because of the three-phase power.
It should be noted that the above-mentioned multi-motor operation control method can be applied to the multi-motor operation control device provided by the embodiment of the present invention, and has the corresponding function and beneficial effect of the execution device. For technical details that are not described in detail in the embodiment of the multi-motor operation control method, reference may be made to the multi-motor operation control apparatus provided in the embodiment of the present invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; within the idea of the invention, also technical features in the above embodiments or in different embodiments can be combined, steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (9)
1. A multi-motor operation control apparatus characterized by comprising:
a power control device for outputting a target signal according to a received control instruction;
the switching control device comprises at least two switching links, and each switching link in the at least two switching links is used for connecting a motor;
the switch control device is used for receiving the target signal and controlling at least one of the at least two switch links to be conducted according to the target signal, and the power supply control device is also used for outputting three-phase current generated when the motor runs to the motor connected with the conducted switch link through the conducted switch link.
2. The multi-motor operation control apparatus according to claim 1, wherein the power supply control means includes a relay and a three-phase power supply,
the relay is used for outputting the target signal to the switch control device according to the received control instruction so as to enable at least one switch link in the at least two switch links to be conducted;
and the three-phase power supply is used for outputting three-phase current generated when the motor runs to the motor connected with the conducted switch link through the conducted switch link.
3. The multi-motor operation control apparatus according to claim 2, wherein the relay includes a power supply and at least two terminals, the power supply being electrically connected to the at least two terminals, respectively, the at least two terminals being electrically connected to the at least two switch links in a one-to-one correspondence, the at least two switch links being further electrically connected to the power supply, respectively,
when the control instruction indicates that at least one of the at least two terminals is closed, the power supply outputs the target signal to a switch link connected with the closed terminal so as to conduct the switch link.
4. Multi-motor operation control device according to claim 2, characterized in that said switching chain comprises a contactor module,
the first end of the contactor module is electrically connected with the relay, the second end of the contactor module is connected with the three-phase power supply, and the third end of the contactor module is connected with the motor;
and the first end of the contactor module is used for receiving the target signal and controlling the conduction of the second end connected with the three-phase power supply according to the target signal, so that a motor connected with the third end works.
5. The multi-motor operation control apparatus of claim 4, wherein the contactor modules comprise at least two sets of contactor modules, each set of contactor modules comprising three direct current contactors.
6. The multi-motor operation control device according to claim 5, wherein the DC contactor includes an attraction coil, a fixed contact, and a movable contact, the attraction coil is electrically connected to the relay, the fixed contact is electrically connected to the three-phase power supply, the movable contact is connected to the motor,
when the attraction coil receives the target signal, the fixed contact and the moving contact are closed, so that the three-phase power supply provides working voltage for the motor.
7. The multi-motor operation control apparatus according to claim 5, wherein the direct current contactor is 24V or 12V.
8. Multiple motor operation control device according to any one of claims 1 to 7, characterized in that the power supply control means comprises a frequency converter.
9. A multi-motor operation control system characterized by comprising: a multi-motor operation control apparatus according to any one of claims 1 to 8, and at least two motors connected in one-to-one correspondence with at least two switch links in the multi-motor operation control apparatus, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220646918.3U CN217469796U (en) | 2022-03-23 | 2022-03-23 | Multi-motor operation control equipment and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220646918.3U CN217469796U (en) | 2022-03-23 | 2022-03-23 | Multi-motor operation control equipment and system |
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| Publication Number | Publication Date |
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| CN217469796U true CN217469796U (en) | 2022-09-20 |
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| CN202220646918.3U Active CN217469796U (en) | 2022-03-23 | 2022-03-23 | Multi-motor operation control equipment and system |
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