Connecting port of frequency converter

Abstract

The utility model discloses a connection port of a frequency converter, comprising a frequency converter, one side of the frequency converter is provided with a plurality of connection ports, one side of the frequency converter is provided with a dustproof shell, the dustproof shell is provided with a plurality of plugging ports, the plurality of plugging ports are mutually aligned with the plurality of connection ports, two sides of the plugging ports are provided with movable grooves, and the movable grooves are arranged in the dustproof shell. The two sets of movable grooves are symmetrically distributed, first springs are fixedly connected into the movable grooves, the other ends of the first springs are fixedly connected with first sealing plates, and one sides of the two sets of first sealing plates are attached to each other. According to the connecting port of the frequency converter, the problems of overheating, signal loss or even electrical failure caused by poor contact and resistance increase due to dust accumulation at the port are prevented, frequent maintenance or repair is avoided, the workload of maintenance workers is greatly reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of frequency converters, and in particular to a connection port for a frequency converter. Background Technology

[0002] A frequency converter is a device used to regulate the speed of an AC motor. It achieves speed control by changing the frequency and voltage of the power supply to the motor. Frequency converters are widely used in industry, agriculture, and construction.

[0003] Existing frequency converters generate electromagnetic fields during operation, especially during high-frequency switching. This electric field may attract surrounding fine dust particles, causing dust to accumulate at connection ports and other parts. Dust accumulation can lead to poor contact, increased resistance, overheating, signal loss, or even electrical faults, requiring more frequent maintenance or repairs, increasing costs, and potentially causing equipment downtime and impacting production efficiency. Utility Model Content

[0004] The main objective of this invention is to provide a connection port for a frequency converter, which can effectively solve the technical problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A connection port for a frequency converter includes the frequency converter itself. A plurality of connection ports are provided on one side of the frequency converter, and a dustproof housing is provided on the same side. A plurality of plug-in interfaces are provided on the dustproof housing, and these plug-in interfaces are aligned with the connection ports. Movable slots are provided on both sides of each plug-in interface, and two sets of movable slots are symmetrically distributed. A first spring is fixedly connected to each movable slot, and a first sealing plate is fixedly connected to the other end of each first spring. One side of the two sets of first sealing plates is abutted against each other. Wire holes are provided on both sets of first sealing plates, and sealing components are provided on the first sealing plates to seal the wire holes. A connection component is provided on the frequency converter for connecting the dustproof housing to the frequency converter.

[0007] As a further embodiment of this utility model, the sealing assembly includes a movable groove formed on one side of the wire hole, two sets of second springs connected in the movable groove, the two sets of second springs being symmetrically distributed, and a second sealing plate fixedly connected to the other end of the two sets of second springs. A placement groove is formed on the other side of the wire hole, and one end of the second sealing plate extends into the placement groove.

[0008] As a further embodiment of this utility model, the connecting assembly includes a mounting plate disposed on one side of the frequency converter, one side of the mounting plate being snapped into one side of the dustproof shell, a first fixing plate being fixedly connected to both sides of the frequency converter, and a second fixing plate being fixedly connected to the bottom of the frequency converter.

[0009] As a further embodiment of this utility model, the connecting assembly further includes a first slot formed on one side of the first fixing plate, a first retaining plate welded to one side of the mounting plate, a second slot formed on one side of the second fixing plate, and a second retaining plate welded to the other side of the mounting plate.

[0010] As a further embodiment of this utility model, the other end of each of the two sets of first card plates extends into the two sets of first card slots, and the other end of the second card plate extends into the second card slot.

[0011] As a further embodiment of this utility model, the first card plate is provided with two sets of threaded grooves, and the two sets of threaded grooves are symmetrically distributed.

[0012] As a further embodiment of this utility model, two sets of bolts are threadedly connected to the first fixing plate, and one end of each set of bolts is threadedly connected to the threaded groove.

[0013] The beneficial effects of this utility model are as follows:

[0014] The dustproof housing is connected to the frequency converter via a set of connecting components, isolating the connection ports on the frequency converter from the outside environment and preventing dust from accumulating at the connection ports. Insertion interfaces are provided on the dustproof housing for easy connection of wiring harnesses to the connection ports. A first sealing plate is installed at the unconnected insertion interface. A first spring in the movable groove presses two sets of first sealing plates together, sealing the insertion interface and preventing dust from entering the connection port. Simultaneously, wire holes are provided for placing the wiring harness, enhancing the sealing performance of the first sealing plate at the insertion interface when the wiring harness is connected to the connection port. This prevents dust accumulation at the ports from causing poor contact, increased resistance, overheating, signal loss, or even electrical faults, thus avoiding frequent maintenance or repairs, significantly reducing the workload of maintenance workers, and improving production efficiency.

[0015] The dust cover on the mounting plate is aligned with the first and second clips on the first and second fixing plates, respectively. Simultaneously, the first and second clips are pushed into these slots, initially fixing the mounting plate to the first and second fixing plates. This connects the dust cover to the frequency converter, greatly facilitating equipment installation and subsequent maintenance, thus increasing the ease of use of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the connection port of a frequency converter according to the present invention;

[0017] Figure 2 This is a side view of the connection port of a frequency converter according to the present invention;

[0018] Figure 3 This utility model provides a connection port for a frequency converter. Figure 1 Cross-sectional view;

[0019] Figure 4 This utility model provides a connection port for a frequency converter. Figure 1 Top view;

[0020] Figure 5 This utility model provides a connection port for a frequency converter. Figure 3 Enlarged view of point A in the middle;

[0021] Figure 6 This utility model provides a connection port for a frequency converter. Figure 4 Enlarged view of section B in the middle.

[0022] In the diagram: 1. Inverter; 2. Connection port; 3. Dustproof housing; 4. Plug-in interface; 5. Movable slot; 6. First sealing plate; 7. First spring; 8. Wire hole; 9. Movable slot; 10. Second sealing plate; 11. Second spring; 12. Mounting plate; 13. First fixing plate; 14. First clamping plate; 15. First clamping slot; 16. Second fixing plate; 17. Second clamping plate; 18. Second clamping slot; 19. Bolt; 20. Placement slot. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figures 1-6 As shown, a connection port of a frequency converter includes a frequency converter 1. A plurality of connection ports 2 are provided on one side of the frequency converter 1. A dustproof shell 3 is provided on one side of the frequency converter 1. A plurality of plug-in interfaces 4 are provided on the dustproof shell 3. The plurality of plug-in interfaces 4 are aligned with the plurality of connection ports 2. Movable grooves 5 are provided on both sides of the plug-in interfaces 4. The two sets of movable grooves 5 are symmetrically distributed. A first spring 7 is fixedly connected in the movable groove 5. A first sealing plate 6 is fixedly connected to the other end of the first spring 7. The two sets of first sealing plates 6 are in contact with each other on one side.

[0025] In this embodiment, the two sets of first sealing plates 6 are provided with wire holes 8, and the first sealing plates 6 are provided with sealing components. The sealing components are used to seal the wire holes 8. The frequency converter 1 is provided with connecting components, which are used to connect the dust cover 3 to the frequency converter 1.

[0026] During operation, the dustproof housing 3 is connected to the inverter 1 via a connecting assembly, isolating the connection port 2 on the inverter 1 from the outside environment and preventing dust from accumulating at the connection port 2. A connector 4 is provided on the dustproof housing 3 for easy connection of wiring harnesses to the connection port 2. A first sealing plate 6 is installed at the unconnected connector 4. A first spring 7 within the movable groove 5 presses two sets of first sealing plates 6 together, sealing the connector 4 and preventing dust from entering the connection port 2. A wire hole 8 is provided for placing the wiring harness, enhancing the sealing performance of the first sealing plate 6 at the connector 4 when the wiring harness is connected to the connection port 2. Simultaneously, the sealing assembly seals the wire hole 8 where no wiring harness is placed, preventing dust from entering. This prevents dust accumulation at the port from causing poor contact, increased resistance, overheating, signal loss, or even electrical faults, thus avoiding frequent maintenance or repairs, significantly reducing the workload of maintenance workers, and improving production efficiency.

[0027] In this embodiment, the sealing assembly includes a movable groove 9 on one side of the wire hole 8, and two sets of second springs 11 are connected in the movable groove 9. The two sets of second springs 11 are symmetrically distributed, and the other ends of the two sets of second springs 11 are fixedly connected to a second sealing plate 10. A placement groove 20 is provided on the other side of the wire hole 8, and one end of the second sealing plate 10 extends into the placement groove 20.

[0028] The second sealing plate 10 in the moving groove 9 is squeezed by the second spring 11, and one end of the second sealing plate 10 is pushed into the placement groove 20 to seal the wire hole 8, thereby playing the role of a sealing component and preventing dust from entering the interior from the wire hole 8, thus protecting the equipment.

[0029] In this embodiment, the connecting assembly includes a mounting plate 12 disposed on one side of the inverter 1. One side of the mounting plate 12 is snapped into one side of the dust cover 3. First fixing plates 13 are fixedly connected to both sides of the inverter 1, and a second fixing plate 16 is fixedly connected to the bottom of the inverter 1. The second fixing plate 16 includes a first slot 15 opened on one side of the first fixing plate 13. A first locking plate 14 is welded to one side of the mounting plate 12. A second slot 18 is opened on one side of the second fixing plate 16. A second locking plate 17 is welded to the other side of the mounting plate 12. The other ends of the two sets of first locking plates 14 extend into the two sets of first slots 15, and the other end of the second locking plate 17 extends into the second slot 18.

[0030] The dust cover 3, which is snapped onto the mounting plate 12, is aligned with the first slot 15 and the second slot 18 on the first fixing plate 13 and the second fixing plate 16, respectively, by the first locking plate 14 and the second locking plate 17. At the same time, the first locking plate 14 and the second locking plate 17 are pushed into the first slot 15 and the second slot 18, thus initially fixing the mounting plate 13 onto the first fixing plate 13 and the second fixing plate 16. This connects the dust cover 3 to the frequency converter 1, greatly facilitating the installation of the equipment by the staff and making it easier for maintenance personnel to carry out subsequent maintenance work, thereby increasing the ease of use of the equipment.

[0031] In this embodiment, the first card plate 14 has two sets of threaded grooves, which are symmetrically distributed. The first fixing plate 13 is threaded with two sets of bolts 19, and one end of each set of bolts 19 is threadedly connected to the threaded groove.

[0032] After the connecting assembly initially fixes the protective shell 3 onto the frequency converter 1, the bolt 19 is turned into the threaded groove on the first clamping plate 14, thereby reliably fixing the first clamping plate 14 into the first clamping groove 15, completing the connection between the protective shell 3 and the frequency converter 1, which greatly increases the reliability of the equipment connection.

[0033] It should be noted that this utility model is a connection port for a frequency converter. During use, the first locking plate 14 and the second locking plate 17 are aligned with the first locking slot 15 and the second locking slot 18 respectively on the first fixing plate 13 and the second fixing plate 16. Simultaneously, the first locking plate 14 and the second locking plate 17 are pushed into the first locking slot 15 and the second locking slot 18, initially fixing the mounting plate 13 to the first fixing plate 13 and the second fixing plate 16. Then, the bolt 19 is turned into the threaded groove on the first locking plate 14, thus securely fixing the first locking plate 14 in the first locking slot 15. This connects the dust cover 3 to the frequency converter 1, isolating the connection port 2 on the frequency converter 1 from the outside environment and preventing dust from being drawn in. Attached to connection port 2; by opening a plug interface 4 on the dustproof housing 3, it is convenient for users to connect the wire harness to the connection port 2. At the same time, a first sealing plate 6 is set at the plug interface 4 where it is not connected. The first spring 7 in the movable groove 5 squeezes the two sets of first sealing plates 6 together, sealing the plug interface 4 and preventing dust from entering the connection port 2 from the plug interface 4. At the same time, the wire hole 8 is opened for placing the wire harness, which enhances the sealing performance of the first sealing plate 6 at the plug interface 4 when the wire harness is connected to the connection port 2. Meanwhile, the second spring 11 squeezes the second sealing plate 10 in the movable groove 9, pushing one end of the second sealing plate 10 into the placement groove 20, thereby sealing the wire hole 8.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A connection port for a frequency converter, comprising a frequency converter (1), wherein a plurality of connection ports (2) are provided on one side of the frequency converter (1), characterized in that: The inverter (1) is provided with a dustproof shell (3) on one side. The dustproof shell (3) is provided with a plurality of plug-in interfaces (4). The plurality of plug-in interfaces (4) are aligned with a plurality of connection ports (2). The plug-in interfaces (4) are provided with movable slots (5) on both sides. The two sets of movable slots (5) are symmetrically distributed. A first spring (7) is fixedly connected in the movable slot (5). A first sealing plate (6) is fixedly connected to the other end of the first spring (7). The two sets of first sealing plates (6) are attached to each other on one side. The first sealing plate (6) of the two sets is provided with wire holes (8), and the first sealing plate (6) is provided with a sealing component. The sealing component is used to seal the wire holes (8). The inverter (1) is provided with a connecting component. The connecting component is used to connect the dust cover (3) to the inverter (1).

2. The connection port of a frequency converter according to claim 1, characterized in that: The sealing assembly includes a movable groove (9) on one side of the wire hole (8), and two sets of second springs (11) are connected in the movable groove (9). The two sets of second springs (11) are symmetrically distributed, and a second sealing plate (10) is fixedly connected to the other end of the two sets of second springs (11). A placement groove (20) is provided on the other side of the wire hole (8), and one end of the second sealing plate (10) extends into the placement groove (20).

3. The connection port of a frequency converter according to claim 1, characterized in that: The connection assembly includes a mounting plate (12) disposed on one side of the inverter (1), one side of the mounting plate (12) being snapped into one side of the dust cover (3), a first fixing plate (13) being fixedly connected to both sides of the inverter (1), and a second fixing plate (16) being fixedly connected to the bottom of the inverter (1).

4. The connection port of a frequency converter according to claim 3, characterized in that: The connecting assembly further includes a first slot (15) formed on one side of the first fixing plate (13), a first card plate (14) welded to one side of the mounting plate (12), a second slot (18) formed on one side of the second fixing plate (16), and a second card plate (17) welded to the other side of the mounting plate (12).

5. The connection port of a frequency converter according to claim 4, characterized in that: The other end of each of the two sets of first card plates (14) extends into the two sets of first card slots (15), and the other end of the second card plate (17) extends into the second card slot (18).

6. The connection port of a frequency converter according to claim 4, characterized in that: The first card plate (14) has two sets of threaded grooves, which are symmetrically distributed.

7. The connection port of a frequency converter according to claim 4, characterized in that: The first fixing plate (13) is threaded with two sets of bolts (19), and one end of each set of bolts (19) is threaded into the threaded groove.

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