Efficient motor control device for chemical production

Abstract

The utility model relates to the technical field of chemical production, in particular to an efficient motor control device for chemical production, which comprises a cabinet body, a busbar, a partition plate, a storage battery and a direct-current intermediate relay, one end of the cabinet body is provided with a second door body through a locking bolt, and the other end of the cabinet body is provided with a preformed groove close to the bottom in a penetrating manner. A first door body is mounted on the outer side of the preformed groove through a second screw; a partition plate is arranged between the inner walls of the cabinet body, a direct-current intermediate relay is installed at one end of the bottom of the partition plate through screws, a storage battery is arranged at one end of the bottom in the cabinet body, and a rectifier is fixed to the top of the storage battery through screws. An AC 220V intermediate relay in an original electrical cabinet drawer is replaced by the DC intermediate relay to control the contactor in the drawer to start and stop, and the induced voltage between control cables is greatly reduced, so that the start-stop fault of the motor caused by the rise of the induced voltage is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical production, in particular to a high-efficiency control device for a motor in chemical production. Background Art

[0002] In the field of chemical production, the motor can drive the stirring roller to rotate and drive some valves to open and close. Therefore, multiple motors are needed in chemical production. In order to facilitate the control of these motors, a control device is very necessary. The intermediate relay coil is powered by the motor power drawer (AC220V), and the relay controls the contactor to close.

[0003] During the production process, electrical and production line personnel discovered that some motors could not stop. Upon inspection, they found that the induced voltage between the core wires inside the multi-core control cable was high. When this cable controlled a large number of motors, the voltage of the remaining core wires to the ground could reach about 110V or even higher, causing the intermediate relay to fail to operate or malfunction. Utility Model Content

[0004] In view of the problems in the prior art, the utility model provides a high-efficiency control device for chemical production motors. A DC intermediate relay is used to replace the AC220V intermediate relay in the original electrical cabinet drawer to control the start and stop of the contactor in the drawer. The induced voltage between the control cables is greatly reduced, thereby preventing the start and stop failure of the motor caused by the increase of the induced voltage.

[0005] The technical solution adopted by the utility model to solve the technical problem is a high-efficiency control device for chemical production motors, including a cabinet, a busbar, a partition, a battery and a DC intermediate relay, a second door body is installed at one end of the cabinet through a locking bolt, a reserved groove is penetrated and opened near the bottom of the other end of the cabinet, and a first door body is installed outside the reserved groove through a second screw;

[0006] A partition is arranged between the inner walls of the cabinet, a DC intermediate relay is installed at one end of the bottom of the partition by screws, a battery is arranged at one end of the bottom of the cabinet, a rectifier is fixed to the top of the battery by screws, a wiring hole is opened through one end of the first door body, a busbar is installed near the top of one side of the inner wall of the cabinet by a first screw, and a second wiring groove is opened through the top of the partition near the center.

[0007] Specifically, a rectangular convex block is provided inside the first door body, a cylindrical rubber pad is fixed to one end of the rectangular convex block by glue, the cylindrical rubber pad is located at one end of the battery, and a baffle is provided at the bottom of the cabinet body near one end of the battery.

[0008] Specifically, a first wiring groove is formed through one side of the cabinet near the upper end of the busbar.

[0009] Specifically, foot pads are provided at the bottom of the cabinet near the corners.

[0010] Specifically, first handles are provided on the outer side of the first door body near both sides, and second handles are provided on the outer side of the second door body near both sides.

[0011] Beneficial effects of the utility model:

[0012] (1) The utility model discloses a highly efficient control device for a chemical production motor, which can conveniently supply power to a DC intermediate relay separately through a storage battery, and replace the conventional 220V relay with a DC relay, thereby greatly reducing the induced voltage between control cables and effectively preventing motor start-stop failures caused by an increase in the induced voltage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is a schematic diagram of the structure of the utility model after cutting and viewed from the front;

[0015] Figure 2 It is a schematic diagram of the external structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the utility model after cutting and looking from the side;

[0017] Figure 4 This is a schematic diagram of the structure of the partition and the second wiring trough of the utility model.

[0018] In the figure: 1. cabinet; 2. first screw; 3. busbar; 4. first wiring trough; 5. partition; 6. second wiring trough; 7. reserved slot; 8. first door; 9. first handle; 10. second screw; 11. rectangular protrusion; 12. cylindrical rubber pad; 13. battery; 14. baffle; 15. rectifier; 16. DC intermediate relay; 17. foot pad; 18. locking bolt; 19. second door; 20. second handle; 21. wiring hole. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] In order to reduce the induced voltage between the control cables, the induced voltage is greatly reduced, thereby preventing the motor start-stop failure caused by the rise of induced voltage, such as Figure 1-4As shown, the utility model is a high-efficiency control device for chemical production motors, comprising a cabinet 1, a busbar 3, a partition 5, a battery 13 and a DC intermediate relay 16, wherein a second door 19 is installed at one end of the cabinet 1 through a locking bolt 18, and a reserved groove 7 is penetrated near the bottom of the other end of the cabinet 1, and a first door 8 is installed on the outside of the reserved groove 7 through a second screw 10;

[0021] A partition 5 is arranged between the inner walls of the cabinet 1, a DC intermediate relay 16 is installed at one end of the bottom of the partition 5 by screws, a battery 13 is arranged at one end of the bottom of the cabinet 1, a rectifier 15 is fixed to the top of the battery 13 by screws, a wiring hole 21 is opened through one end of the first door body 8, a busbar 3 is installed near the top of one side of the inner wall of the cabinet 1 by a first screw 2, and a second wiring groove 6 is opened through the top of the partition 5 near the center.

[0022] When in use, the DC intermediate relay 16 is specifically set to a DC24V relay, and the output voltage of the battery 13 is set to 24V. The battery 13 is used to conveniently power the DC intermediate relay 16 separately. The DC relay replaces the previous 220V relay, which greatly reduces the induced voltage between the control cables and effectively prevents motor start-stop failures caused by rising induced voltage.

[0023] In order to facilitate the compaction and fixation of the battery 13, for example, Figure 1 and Figure 3 As shown, the utility model also includes a rectangular protrusion 11 provided on the inner side of the first door body 8, a cylindrical rubber pad 12 is fixed to one end of the rectangular protrusion 11 by glue, the cylindrical rubber pad 12 is located at one end of the battery 13, and a baffle 14 is provided at the bottom of the cabinet 1 near one end of the battery 13.

[0024] When in use, the baffle 14 and the cylindrical rubber pad 12 work together to conveniently fix the battery 13 between the rectangular protrusion 11 and the baffle 14, so that the first door body 8 can stably limit the battery 13 after installation.

[0025] For example, Figure 1 As shown, the utility model also includes that a first wiring groove 4 is penetrated and opened at one side of the cabinet 1 near the upper end of the busbar 3 .

[0026] When in use, the first wiring trough 4 facilitates the passage of cables of the external motor and wiring with the busbar 3 .

[0027] For example, Figure 1-2 As shown, the utility model also includes that foot pads 17 are arranged near the corners at the bottom of the cabinet 1.

[0028] When in use, the bottom of the cabinet 1 can be conveniently lifted and protected by the foot pad 17 .

[0029] For example, Figure 1 As shown, the utility model also includes that first handles 9 are provided on the outer side of the first door body 8 near both sides, and second handles 20 are provided on the outer side of the second door body 19 near both sides.

[0030] When in use, the first door body 8 can be conveniently disassembled and assembled through the first handle 9 , and the second door body 19 can be conveniently disassembled and assembled through the second handle 20 .

[0031] When the utility model is in use, the first wiring groove 4 facilitates the passage of the cables of the external motor and the connection with the bus bar 3, and the second wiring groove 6 facilitates the passage of the cables on the bus bar 3 and the connection with the DC intermediate relay 16. The rectifier 15 can be connected to the external AC power through the wiring hole 21, so that the AC power can be converted into DC power when needed and stored in the battery 13;

[0032] The DC intermediate relay 16 is specifically set as a DC24V relay, and the output voltage of the battery 13 is set to 24V. The battery 13 is used to conveniently power the DC intermediate relay 16 separately. The DC relay replaces the previous 220V relay, which greatly reduces the induced voltage between the control cables and effectively prevents the motor start-stop failure caused by the increase of the induced voltage.

[0033] Through the combined action of the baffle 14 and the columnar rubber pad 12 , the battery 13 is conveniently fixed and limited between the rectangular protrusion 11 and the baffle 14 , so that the first door body 8 can stably limit the battery 13 after installation.

[0034] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A highly efficient control device for a motor in chemical production, characterized in that: The invention comprises a cabinet (1), a busbar (3), a partition (5), a storage battery (13) and a DC intermediate relay (16); a second door (19) is installed at one end of the cabinet (1) via a locking bolt (18); a reserved groove (7) is penetrated and opened near the bottom of the other end of the cabinet (1); a first door (8) is installed on the outer side of the reserved groove (7) via a second screw (10); A partition (5) is provided between the inner walls of the cabinet (1), a DC intermediate relay (16) is installed at one end of the bottom of the partition (5) by means of screws, a battery (13) is provided at one end of the bottom of the cabinet (1), a rectifier (15) is fixed to the top of the battery (13) by means of screws, a wiring hole (21) is provided through one end of the first door (8), a busbar (3) is installed near the top of one side of the inner wall of the cabinet (1) by means of a first screw (2), and a second wiring groove (6) is provided through the top of the partition (5) near the center.

2. The high-efficiency control device for a motor in chemical production according to claim 1 is characterized in that: A rectangular protrusion (11) is provided on the inner side of the first door body (8), a columnar rubber pad (12) is fixed to one end of the rectangular protrusion (11) by glue, the columnar rubber pad (12) is located at one end of the storage battery (13), and a baffle (14) is provided at the bottom of the cabinet body (1) near one end of the storage battery (13).

3. The high-efficiency control device for a motor in chemical production according to claim 1 is characterized in that: A first wiring groove (4) is provided through one side of the cabinet (1) near the upper end of the busbar (3).

4. The high-efficiency control device for a motor in chemical production according to claim 1 is characterized in that: Foot pads (17) are provided at the bottom of the cabinet (1) near the corners.

5. The high-efficiency control device for a motor in chemical production according to claim 1 is characterized in that: The first door body (8) is provided with first handles (9) on both sides of the outer side, and the second door body (19) is provided with second handles (20) on both sides of the outer side.

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