Motor electric control device with explosion-proof structure

Abstract

The utility model relates to the technical field of motor electric control, in particular to a motor electric control device with an explosion-proof structure, which comprises a fixed frame, a shell is mounted in the fixed frame, a fixed column is fixedly connected to the inner surface of the fixed frame, a movable column is fixedly connected to the back surface of the shell, and the movable column is fixedly connected to the inner surface of the shell. The end, away from the shell, of the movable column is fixedly connected with a rubber sheet, the rubber sheet is located in the fixed column, a silica gel column is arranged in the fixed frame, the position of the silica gel column corresponds to the position of the fixed column, an air hole is formed in the silica gel column, and a spring is arranged on the outer surface of the movable column. One end of the spring is fixedly connected with the side end of the fixing frame, and the other end of the spring is fixedly connected with the back face of the shell. According to the utility model, the internal electric control assembly can be protected in case of explosion, so that the electric control assembly is convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of motor and electronic control, and in particular to a motor and electronic control device with an explosion-proof structure. Background Technology

[0002] The motor controller is a device that controls motor equipment; it is the "control center" of the motor. Control commands issued by operators must be executed through the motor controller. The motor controller uses two modes—torque control and speed control—to control the direction of motor torque and the magnitude of motor speed to drive the equipment, and adjusts the motor's output efficiency, among other things.

[0003] When applying for this utility model, the applicant searched and found that a Chinese patent disclosed "an explosion-proof motor control device" with application number "CN201720372989.8". This patent has the advantages of being of a certain height, making it easy to operate, not fixed in position and can be placed at will, small in size, saving space, reducing costs, convenient, flexible and safe operation, improving work efficiency, and having strong applicability.

[0004] However, the aforementioned patent cannot eliminate the impact force of an explosion. All the explosive impact will act on the internal components, causing the internal components to be easily damaged by the impact, which is not convenient for the use of motors and electronic controls. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a motor control device with an explosion-proof structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a motor control device with an explosion-proof structure, comprising a fixed frame, an outer shell installed inside the fixed frame, a fixed column fixedly connected to the inner surface of the fixed frame, a movable column fixedly connected to the back of the outer shell, a rubber sheet fixedly connected to the end of the movable column away from the outer shell, the rubber sheet being located inside the fixed column, a silicone column disposed inside the fixed frame, the position of the silicone column corresponding to the position of the fixed column, an air hole being opened inside the silicone column, a spring disposed on the outer surface of the movable column, one end of the spring being fixedly connected to the side end of the fixed frame, and the other end of the spring being fixedly connected to the back of the outer shell.

[0007] As a further description of the above technical solution:

[0008] An electrical control component is fixedly connected inside the housing. A wire hole is provided at the bottom of the housing, and a wire is provided at the bottom of the electrical control component. The wire passes through the wire hole to the bottom of the housing.

[0009] As a further description of the above technical solution:

[0010] The front of the outer shell is movably connected to a door via a hinge, and the inner surface of the door is lined with fireproof cotton.

[0011] As a further description of the above technical solution:

[0012] The outer casing is provided with a limiting groove on its side, and the side end of the fixing frame is located inside the limiting groove.

[0013] As a further description of the above technical solution:

[0014] A mounting bracket is fixedly connected to the back of the fixed frame, and a slot is provided inside the mounting bracket, with a movable frame disposed inside the slot.

[0015] As a further description of the above technical solution:

[0016] The mounting bracket has a first threaded hole inside, and the movable bracket has a second threaded hole inside. A connecting screw is threaded into the first threaded hole, and one end of the connecting screw extends into the second threaded hole.

[0017] This utility model has the following beneficial effects:

[0018] Compared to existing technologies, this explosion-proof motor control device, through a fixed frame, outer shell, fixed column, movable column, rubber sheet, silicone column, and spring, ensures that when encountering an explosive impact, the impact first acts on the front of the outer shell, causing it to move backward. During this backward movement, the rubber sheet compresses the air inside the fixed column, allowing the air to escape through the pores inside the silicone column. This air escape generates resistance, which dissipates the energy of the impact, thereby reducing damage to the control components and facilitating their continued operation. In contrast, existing structures cannot eliminate the impact force of an explosion, and all the explosive impact acts on the internal components, making them prone to damage and hindering the use of the motor control. This explosion-proof motor control device protects the internal control components during an explosion, ensuring their continued operation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a motor control device with an explosion-proof structure proposed in this utility model.

[0020] Figure 2 This is a first-view internal structural cross-sectional view of a motor control device with an explosion-proof structure proposed in this utility model.

[0021] Figure 3 This utility model proposes a motor control device with an explosion-proof structure. Figure 2 Enlarged view of the structure at point A in the middle;

[0022] Figure 4 This is a second-view internal structural cross-sectional view of a motor control device with an explosion-proof structure proposed in this utility model.

[0023] Figure 5 This utility model proposes a motor control device with an explosion-proof structure. Figure 4 Enlarged view of the structure at point B in the middle.

[0024] Legend:

[0025] 1. Fixing frame; 2. Outer shell; 3. Fixing column; 4. Moving column; 5. Rubber sheet; 6. Silicone column; 7. Air hole; 8. Spring; 9. Electrical control assembly; 10. Door body; 11. Limiting groove; 12. Mounting bracket; 13. Card slot; 14. Moving frame; 15. First threaded hole; 16. Second threaded hole; 17. Connecting screw. Detailed Implementation

[0026] Reference Figure 1-5 This utility model provides a motor control device with an explosion-proof structure, comprising a fixed frame 1, an outer shell 2 installed inside the fixed frame 1, a limiting groove 11 provided on the side of the outer shell 2, the side end of the fixed frame 1 located inside the limiting groove 11, the outer shell 2 being able to move back and forth on the front of the fixed frame 1, and when encountering an explosive impact, the outer shell 2 can move backward to dissipate the force and protect the internal components, a fixed column 3 fixedly connected to the inner surface of the fixed frame 1, and a movable column 4 fixedly connected to the back of the outer shell 2, a rubber sheet 5 fixedly connected to the end of the movable column 4 away from the outer shell 2, the rubber sheet 5 located inside the fixed column 3, when the outer shell 2 moves backward, the movable column 4 also moves backward, driving the rubber sheet 5 to move backward, compressing the air inside the fixed column 3, generating resistance, and dissipating the energy brought by the explosive impact. The internal part of the frame 1 contains a silicone pillar 6. The internal part of the frame 1 has a through hole, and the silicone pillar 6 is installed inside the through hole. The position of the silicone pillar 6 corresponds to the position of the fixed pillar 3. The internal part of the silicone pillar 6 has an air hole 7. When the rubber sheet 5 moves backward, it will compress the air. After being compressed, the air will be discharged from the air hole 7. The diameter of the air hole 7 is small, which will create greater resistance when the air is discharged, thus absorbing the energy generated by the explosion impact. The outer surface of the moving pillar 4 is provided with a spring 8. One end of the spring 8 is fixedly connected to the side end of the frame 1, and the other end of the spring 8 is fixedly connected to the back of the outer shell 2. When the outer shell 2 moves backward, it will compress the spring 8. After being impacted, the spring 8 will first contract and then rebound. This process repeats, which can dissipate the energy brought by the impact, thereby reducing the damage to the internal components and facilitating the continued operation of the internal components.

[0027] An electrical control component 9 is fixedly connected inside the outer casing 2. A wire hole is provided at the bottom of the outer casing 2, and a wire is provided at the bottom of the electrical control component 9. The wire passes through the wire hole to the bottom of the outer casing 2, so that the electrical control component 9 can control the motor and other equipment. A door 10 is movably connected to the front of the outer casing 2 through a hinge. The inner surface of the door 10 is provided with fireproof cotton, which can play a flame-retardant role and also has a certain impact absorption effect.

[0028] A mounting bracket 12 is fixedly connected to the back of the fixed bracket 1. The mounting bracket 12 has a slot 13 inside, and a movable bracket 14 is provided inside the slot 13. The movable bracket 14 can move back and forth inside the slot 13. The mounting bracket 12 has a first threaded hole 15 inside, and the movable bracket 14 has a second threaded hole 16 inside. A connecting screw 17 is threaded inside the first threaded hole 15. One end of the connecting screw 17 extends into the second threaded hole 16. Rotating the connecting screw 17 can connect the mounting bracket 12 and the movable bracket 14 together.

[0029] Working principle: When encountering an explosive impact, the impact will first act on the front of the outer shell 2, causing the outer shell 2 to move backward. During the backward movement of the outer shell 2, the rubber sheet 5 will squeeze the air inside the fixing column 3, and the air will be discharged from the air hole 7 inside the silicone column 6. The discharge process will generate resistance, which can consume the energy brought by the impact, thereby reducing the damage to the electronic control component 9 and facilitating the continued operation of the electronic control component 9. This motor and electronic control device with an explosion-proof structure can protect the internal electronic control component 9 in the event of an explosion, and facilitate the use of the electronic control component 9.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A motor control device with an explosion-proof structure, comprising a mounting bracket (1), characterized in that: The fixing frame (1) has an outer shell (2) installed inside. A fixing column (3) is fixedly connected to the inner surface of the fixing frame (1). A moving column (4) is fixedly connected to the back of the outer shell (2). A rubber sheet (5) is fixedly connected to the end of the moving column (4) away from the outer shell (2). The rubber sheet (5) is located inside the fixing column (3). A silicone column (6) is provided inside the fixing frame (1). The position of the silicone column (6) corresponds to the position of the fixing column (3). An air hole (7) is opened inside the silicone column (6). A spring (8) is provided on the outer surface of the moving column (4). One end of the spring (8) is fixedly connected to the side end of the fixing frame (1). The other end of the spring (8) is fixedly connected to the back of the outer shell (2).

2. The motor control device with an explosion-proof structure according to claim 1, characterized in that: An electrical control component (9) is fixedly connected inside the outer casing (2). A wire hole is provided at the bottom of the outer casing (2). A wire is provided at the bottom of the electrical control component (9). The wire passes through the wire hole to the bottom of the outer casing (2).

3. The motor control device with an explosion-proof structure according to claim 1, characterized in that: The front of the outer shell (2) is movably connected to the door body (10) via a hinge, and the inner surface of the door body (10) is provided with fireproof cotton.

4. The motor control device with an explosion-proof structure according to claim 1, characterized in that: The outer shell (2) has a limiting groove (11) on its side, and the side end of the fixing frame (1) is located inside the limiting groove (11).

5. A motor control device with an explosion-proof structure according to claim 1, characterized in that: The mounting bracket (12) is fixedly connected to the back of the fixed bracket (1). The mounting bracket (12) has a slot (13) inside, and a movable bracket (14) is provided inside the slot (13).

6. A motor control device with an explosion-proof structure according to claim 5, characterized in that: The mounting bracket (12) has a first threaded hole (15) inside, and the movable bracket (14) has a second threaded hole (16) inside. A connecting screw (17) is threaded into the first threaded hole (15), and one end of the connecting screw (17) extends into the second threaded hole (16).

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