High-voltage soft starting device with insulation level detection function

Abstract

The utility model discloses a high-voltage soft starting device with insulation level detection, which comprises a microcomputer control device body, the front surface of the microcomputer control device body is provided with a box door, the inner surface of the microcomputer control device body is provided with a wiring terminal, the right surface of the microcomputer control device body is provided with a digital megohmmeter, and the left surface of the microcomputer control device body is provided with a power supply. The upper surface of the digital megohmmeter is provided with a first socket. By arranging the digital megohmmeter, the first plug, the first wire, the joint, the contact, the guide rail, the motor, the lead screw, the U-shaped frame, the second plug and other structures, insulation detection can be carried out on the microcomputer control device body, so that potential insulation faults can be found in time, and equipment damage or safety accidents caused by insulation failures are avoided; and by arranging structures such as the buckle seat and the limiting assembly, the digital megohmmeter can be replaced, so that the insulation detection of the microcomputer control device body is always kept in an optimal state.

Description

Technical Field

[0001] This utility model relates to the technical field of high-voltage soft starter devices, and in particular to a high-voltage soft starter device with insulation level detection. Background Technology

[0002] With the rapid development of modern industry, high-voltage motors are increasingly widely used in power, metallurgy, mining, petrochemical and other fields. These motors typically have large starting currents and high starting torques. Direct starting can cause severe impacts on the power grid and the motor itself, potentially leading to problems such as sudden voltage drops, overheating of motor windings, and damage to mechanical transmission components. To address these issues, high-voltage soft starters, also known as microcomputer-controlled devices, have emerged.

[0003] However, traditional high-voltage soft starters still have certain drawbacks. For example, most high-voltage soft starters lack insulation level monitoring capabilities, making it impossible to detect insulation faults in a timely manner and posing certain safety hazards. A search revealed that the technical solution provided by utility model application number CN202220884875.2 also suffers from the aforementioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a high-voltage soft starter with insulation level detection, which can perform insulation detection on the microcomputer control device body, thereby timely detecting potential insulation faults and avoiding equipment damage or safety accidents caused by insulation failure. It can also replace the digital megohmmeter, thereby ensuring that the insulation detection of the microcomputer control device body is always kept in the best condition.

[0005] To achieve the above objectives, a high-voltage soft starter with insulation level detection is provided, comprising:

[0006] The microcomputer control device body has a door on its front surface, wiring terminals on its inner surface, a digital megohmmeter on its right surface, a first socket on its upper surface, a first plug on its inner surface, a first wire fixedly connected to the outer surface of the first plug, a connector fixedly connected to the end of the first wire away from the first plug, and a contact point on the lower surface of the connector. A guide rail is fixedly connected to the right surface of the microcomputer control device body, a motor is fixedly connected to the lower end of the guide rail, a lead screw is fixedly connected to the output end of the motor, and a U-shaped bracket is threaded onto the outer surface of the lead screw. A second socket is located on the lower surface of the digital megohmmeter, a second plug on its inner surface, a second wire fixedly connected to the outer surface of the second plug, and a latching seat fixedly connected to the left surface of the digital megohmmeter.

[0007] A limiting assembly includes a fixed box, a sliding rod, a pressure block, a wedge block, a fixed rod, a limiting block, a spring, an open insert block, and an inclined block. The inner surface of the fixed box is slidably connected to the sliding rod, the front end of the sliding rod is fixedly connected to the pressure block, the rear end of the sliding rod is fixedly connected to the wedge block, the inner surface of the fixed box is fixedly connected to the fixed rod, the upper end of the fixed rod is fixedly connected to the limiting block, the inner surface of the fixed box is fixedly connected to the spring, the outer surface of the fixed rod is slidably connected to the open insert block, and the front surface of the open insert block is fixedly connected to the inclined block.

[0008] According to the high-voltage soft starter with insulation level detection, the outer surface of the latch seat is provided with a socket, and the inner surface of the socket is adapted to the open plug.

[0009] According to the high-voltage soft starter with insulation level detection, the right surface of the microcomputer control device body is provided with a through hole, and the inner surface of the through hole is adapted to the buckle seat.

[0010] According to the high-voltage soft starter with insulation level detection, the lower surface of the microcomputer control device body is fixedly connected with four rollers arranged in a rectangular array.

[0011] According to the high-voltage soft starter with insulation level detection, the end of the second wire away from the second plug extends into the interior of the microcomputer control device body, and the end of the second wire away from the second plug is fixedly connected to the wiring terminal.

[0012] According to the high-voltage soft starter with insulation level detection, the outer surface of the lead screw is rotatably connected to the guide rail, the outer surface of the U-shaped frame is slidably connected to the guide rail, and the upper surface of the connector is fixedly connected to the U-shaped frame.

[0013] According to the high-voltage soft starter with insulation level detection, the inner surface of the microcomputer control device body is fixedly connected to the fixed box, the outer surface of the wedge block is slidably connected to the inclined block, the upper end of the spring is fixedly connected to the open plug, and the spring is sleeved on the outer surface of the fixed rod.

[0014] According to the high-voltage soft starter with insulation level detection, the digital megohmmeter, the motor, and the external power supply are electrically connected.

[0015] The above-mentioned solution has the following beneficial effects:

[0016] 1. By setting up a structure including a digital megohmmeter, a first plug, a first wire, a connector, a contact, a guide rail, a motor, a lead screw, a U-shaped frame, and a second plug, insulation testing of the microcomputer control device body can be performed, thereby timely detection of potential insulation faults and avoiding equipment damage or safety accidents caused by insulation failure.

[0017] 2. By setting up structures such as snap-fit ​​seats and limit components, the digital megohmmeter can be replaced, thereby ensuring that the insulation detection of the microcomputer control device body is always kept in the best condition.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0020] Figure 1 This is a schematic diagram of the overall structure of a high-voltage soft starter device with insulation level detection according to the present invention.

[0021] Figure 2 This is a partial structural schematic diagram of a high-voltage soft starter device with insulation level detection according to this utility model.

[0022] Figure 3 This is a partial structural exploded view of a high-voltage soft starter device with insulation level detection according to this utility model.

[0023] Figure 4 This is an exploded view of the internal structure of a high-voltage soft starter device with insulation level detection according to this utility model.

[0024] Figure 5 This is a cross-sectional view of the limit component structure of a high-voltage soft starter device with insulation level detection according to this utility model.

[0025] Legend:

[0026] 1. Microcomputer control device body; 2. Box door; 3. Wiring terminal; 4. Digital megohmmeter; 5. First socket; 6. First plug; 7. First wire; 8. Connector; 9. Contact; 10. Guide rail; 11. Motor; 12. Lead screw; 13. U-shaped frame; 14. Second socket; 15. Second plug; 16. Second wire; 17. Snap-on seat; 18. Limiting component; 19. Fixing box; 20. Slide rod; 21. Pressure block; 22. Wedge block; 23. Fixing rod; 24. Limiting block; 25. Spring; 26. Opening insert block; 27. Inclined block; 28. Socket; 29. ​​Through hole; 30. Roller. Detailed Implementation

[0027] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0028] Reference Figure 1-5 This utility model discloses a high-voltage soft starter with insulation level detection, comprising: a microcomputer control device body 1 (the microcomputer control device body 1 is a mature existing technology component, and therefore will not be described in detail); a door 2 on the front surface of the microcomputer control device body 1; wiring terminals 3 on the inner surface of the microcomputer control device body 1 for internal wiring connections; and a digital megohmmeter 4 on the right surface of the microcomputer control device body 1 (the digital megohmmeter 4 is a mature existing technology component, and therefore will not be described in detail). The upper surface of Table 4 is provided with a first socket 5, the inner surface of the first socket 5 is provided with a first plug 6, the outer surface of the first plug 6 is fixedly connected with a first wire 7, the end of the first wire 7 away from the first plug 6 is fixedly connected with a connector 8, the lower surface of the connector 8 is provided with a contact point 9, the right surface of the microcomputer control device body 1 is fixedly connected with a guide rail 10, the lower end of the guide rail 10 is fixedly connected with a motor 11, the output end of the motor 11 is fixedly connected with a lead screw 12, the outer surface of the lead screw 12 is threaded with a U-shaped bracket 13, the lower surface of the digital megohmmeter 4 is provided with A second socket 14 is provided, with a second plug 15 on the inner surface of the second socket 14. A second wire 16 is fixedly connected to the outer surface of the second plug 15. A latching seat 17 is fixedly connected to the left surface of the digital megohmmeter 4, and a socket 28 is provided on the outer surface of the latching seat 17. A through hole 29 is provided on the right surface of the microcomputer control device body 1, and the inner surface of the through hole 29 is adapted to the latching seat 17 to facilitate the installation of the digital megohmmeter 4. Four rollers 30 are fixedly connected to the lower surface of the microcomputer control device body 1 in a rectangular array. To facilitate the movement of the entire device, the end of the second wire 16 away from the second plug 15 extends into the interior of the microcomputer control device body 1, and the end of the second wire 16 away from the second plug 15 is fixedly connected to the terminal block 3 to facilitate insulation detection of the microcomputer control device body 1. The outer surface of the lead screw 12 is rotatably connected to the guide rail 10, and the outer surface of the U-shaped frame 13 is slidably connected to the guide rail 10 to limit the movement of the U-shaped frame 13. The upper surface of the connector 8 is fixedly connected to the U-shaped frame 13. The digital megohmmeter 4 and the motor 11 are electrically connected to the external power supply.

[0029] The limiting assembly 18 includes a fixed box 19, a slide rod 20, a pressure block 21, a wedge block 22, a fixing rod 23, a limiting block 24, a spring 25, an open insert block 26, and an inclined block 27. The inner surface of the fixed box 19 is slidably connected to the slide rod 20. The front end of the slide rod 20 is fixedly connected to the pressure block 21, and the rear end of the slide rod 20 is fixedly connected to the wedge block 22. The inner surface of the fixed box 19 is fixedly connected to the fixing rod 23, and the upper end of the fixing rod 23 is fixedly connected to the limiting block 24. The inner surface is fixedly connected to the spring 25, the outer surface of the fixing rod 23 is slidably connected to the open plug 26, the front surface of the open plug 26 is fixedly connected to the inclined block 27, the inner surface of the socket 28 is adapted to the open plug 26 to facilitate the fixing of the digital megohmmeter 4, the inner surface of the microcomputer control device body 1 is fixedly connected to the fixing box 19, the outer surface of the wedge block 22 is slidably connected to the inclined block 27, the upper end of the spring 25 is fixedly connected to the open plug 26, and the spring 25 is sleeved on the outer surface of the fixing rod 23.

[0030] Working principle: When insulation level testing of the microcomputer control device body 1 is required, the digital megohmmeter 4 and motor 11 are activated. Under the action of motor 11, the lead screw 12 is driven to move the connector 8 downward through the U-shaped frame 13. When the contact 9 contacts the outer shell of the microcomputer control device body 1, insulation level testing can be performed on the microcomputer control device body 1, and the result is transmitted to the digital megohmmeter 4 through the wire and then displayed on the screen. This allows for timely detection of potential insulation faults in the microcomputer control device body 1, preventing equipment damage or safety accidents caused by insulation failure. When the digital megohmmeter 4 needs maintenance, firstly, the first plug 6 and the second plug 15 inside the first socket 5 and the second socket 14 are disconnected respectively. Then press the pressure block 21 on the limiting component 18 to drive the slide rod 20 to drive the wedge block 22 to slide along the inclined surface on the inclined block 27. This will drive the open insertion block 26 to slide down along the fixed rod 23 and compress the spring 25, thereby releasing the restriction on the buckle seat 17. Then, pull out the entire digital megohmmeter 4 through the through hole 29 to complete the disassembly for maintenance. After maintenance, align the buckle seat 17 on the digital megohmmeter 4 with the through hole 29 and insert it. When the insertion hole 28 on the buckle seat 17 corresponds to the open insertion block 26, release the pressure block 21. Under the rebound force of the spring 25, the open insertion block 26 will automatically insert into the insertion hole 28, thereby completing the installation and fixation of the entire digital megohmmeter 4.

[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A high-voltage soft starter with insulation level detection, comprising: A microcomputer control device body (1) is provided with a door (2) on the front surface of the microcomputer control device body (1) and a wiring terminal (3) on the inner surface of the microcomputer control device body (1). The body is characterized by having a digital megohmmeter (4) on the right surface of the microcomputer control device body (1), a first socket (5) on the upper surface of the digital megohmmeter (4), a first plug (6) on the inner surface of the first socket (5), a first wire (7) fixedly connected to the outer surface of the first plug (6), and a connector (8) fixedly connected to the end of the first wire (7) away from the first plug (6). The lower end of the connector (8)... The surface is provided with contact points (9), the right surface of the microcomputer control device body (1) is fixedly connected with a guide rail (10), the lower end of the guide rail (10) is fixedly connected with a motor (11), the output end of the motor (11) is fixedly connected with a lead screw (12), the outer surface of the lead screw (12) is threaded with a U-shaped bracket (13), the lower surface of the digital megohmmeter (4) is provided with a second socket (14), the inner surface of the second socket (14) is provided with a second plug (15), the outer surface of the second plug (15) is fixedly connected with a second wire (16), and the left surface of the digital megohmmeter (4) is fixedly connected with a buckle seat (17). The limiting component (18) includes a fixed box (19), a slide rod (20), a pressure block (21), a wedge block (22), a fixed rod (23), a limiting block (24), a spring (25), an open insertion block (26), and an inclined block (27). The inner surface of the fixed box (19) is slidably connected to the slide rod (20). The front end of the slide rod (20) is fixedly connected to the pressure block (21). The rear end of the slide rod (20) is fixedly connected to the wedge block (22). The inner surface of the fixed box (19) is fixedly connected to the fixed rod (23). The upper end of the fixed rod (23) is fixedly connected to the limiting block (24). The inner surface of the fixed box (19) is fixedly connected to the spring (25). The outer surface of the fixed rod (23) is slidably connected to the open insertion block (26). The front surface of the open insertion block (26) is fixedly connected to the inclined block (27).

2. The high-voltage soft starter with insulation level detection according to claim 1, characterized in that, The outer surface of the buckle seat (17) is provided with a socket (28), and the inner surface of the socket (28) is adapted to the open plug (26).

3. The high-voltage soft starter with insulation level detection according to claim 1, characterized in that, The right surface of the microcomputer control device body (1) is provided with a through hole (29), and the inner surface of the through hole (29) is adapted to the buckle seat (17).

4. A high-voltage soft starter with insulation level detection according to claim 1, characterized in that, The lower surface of the microcomputer control device body (1) is fixedly connected with rollers (30), and the number of rollers (30) is four and they are distributed in a rectangular array.

5. A high-voltage soft starter with insulation level detection according to claim 1, characterized in that, The end of the second wire (16) away from the second plug (15) extends into the interior of the microcomputer control device body (1), and the end of the second wire (16) away from the second plug (15) is fixedly connected to the terminal block (3).

6. A high-voltage soft starter with insulation level detection according to claim 1, characterized in that, The outer surface of the lead screw (12) is rotatably connected to the guide rail (10), the outer surface of the U-shaped frame (13) is slidably connected to the guide rail (10), and the upper surface of the connector (8) is fixedly connected to the U-shaped frame (13).

7. A high-voltage soft starter with insulation level detection according to claim 1, characterized in that, The inner surface of the microcomputer control device body (1) is fixedly connected to the fixed box (19), the outer surface of the wedge block (22) is slidably connected to the inclined block (27), the upper end of the spring (25) is fixedly connected to the open insert block (26), and the spring (25) is sleeved on the outer surface of the fixed rod (23).

8. A high-voltage soft starter with insulation level detection according to claim 1, characterized in that, The digital megohmmeter (4) and the motor (11) are electrically connected to an external power source.

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