Frequency converter mounting air duct with high practicability

Abstract

The utility model discloses a frequency converter installation air duct with high practicability, which comprises a power distribution cabinet shell, an air inlet and outlet duct pipe is arranged on one side of the power distribution cabinet shell, a filter plate is inserted into one side of the air inlet and outlet duct pipe, and a clamping assembly and a clamping auxiliary assembly are arranged outside the filter plate; a clamping groove is formed in the outer side of the filter plate; the clamping assembly comprises a clamping block, and the limiting column is sleeved with a first spring. The clamping auxiliary assembly comprises an auxiliary pushing block which slides in the air inlet and outlet duct pipe, and a second spring is arranged on one side of the auxiliary pushing block; under the action of the clamping groove, the clamping assembly and the clamping auxiliary assembly, the filter plate can be quickly assembled and disassembled, the operation is simple and quick, impurities on the filter plate can be conveniently cleaned in the later period, and the problem that the use of the air inlet and outlet duct pipe is affected due to excessive impurities on the filter plate is avoided; the ventilation and heat dissipation stability of the air inlet and outlet duct is ensured.

Description

Technical Field

[0001] This utility model relates to the field of frequency converter technology, and in particular to a highly practical frequency converter installation duct. Background Technology

[0002] A frequency converter is a power control device that controls an AC motor by changing the frequency of the motor's operating power supply. The air duct of the frequency converter is used to dissipate heat from the internal power components of the frequency converter. Forced air cooling reduces the temperature rise and ensures stable operation of the equipment.

[0003] Conventional inverter duct inlets use inlet and outlet baffles as dust filters. However, if the gap between the inlet and outlet baffles is too large, impurities can easily enter the housing through the duct. In some inverters, the filter plates are installed at the duct inlets using a non-removable or bolt-fastened method. Impurities can easily accumulate on the filter plates, which can prevent the duct from ventilating and dissipating heat. However, the non-removable or bolt-fastened method makes the installation and removal of the filter plates cumbersome and inconvenient for later inspection and replacement.

[0004] Therefore, we provide a highly practical inverter installation duct. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned technical problems by providing a highly practical inverter installation duct that enables quick installation and removal of the filter plate.

[0006] In view of this, the present invention provides a highly practical inverter installation air duct, including a power distribution cabinet shell, an inlet and outlet air duct pipe is provided on one side of the power distribution cabinet shell, a filter plate is inserted into one side of the inlet and outlet air duct pipe, and a snap-fit ​​component and a snap-fit ​​auxiliary component are provided on the outside of the filter plate.

[0007] The filter plate has a snap-fit ​​groove on its outer side;

[0008] The snap-fit ​​assembly includes a snap-fit ​​block, a limiting post connected below the snap-fit ​​block, and a first spring sleeved on the outside of the limiting post;

[0009] The snap-fit ​​auxiliary component includes an auxiliary push block that slides inside the inlet and outlet air duct, and a second spring is provided on one side of the auxiliary push block.

[0010] Preferably, two air inlet and outlet ducts are installed on one side of the power distribution cabinet housing, and the two air inlet and outlet ducts are located on the same vertical plane.

[0011] Preferably, a connecting groove is provided through one side of the air inlet / outlet duct, and the filter plate is inserted into the connecting groove.

[0012] Preferably, the filter plate includes rotating grooves formed on the inner walls of opposite sides of the connecting groove, the two rotating grooves are located on the same vertical plane, the snap-fit ​​block rotates inside the rotating groove, and the snap-fit ​​block is inclined inward at a certain angle, and two snap-fit ​​grooves are symmetrically formed on one side of the filter plate, and the snap-fit ​​block is inserted into the snap-fit ​​groove.

[0013] Preferably, the limiting post is rotatably connected to the surface of the snap-fit ​​block away from the filter plate, and the end of the limiting post away from the snap-fit ​​block is inserted into the inner wall of one end of the rotating groove. The opposite ends of the first spring are fixedly connected to one end of the limiting post and the inner wall of one side of the connecting groove.

[0014] Preferably, the outer end of the limiting post extends beyond the outer surface of the inlet / outlet air duct, and a limit switch is fixedly connected to the outer end of the limiting post.

[0015] Preferably, the inner walls of the connecting groove on both sides are provided with arc-shaped sliding grooves, and the second spring is provided inside the arc-shaped sliding groove. The inner diameter of the arc-shaped sliding groove is smaller than the outer diameter of the second spring. The auxiliary pushing block is slidably arranged inside the arc-shaped sliding groove. The two ends of the second spring are fixedly connected to the inner wall of one side of the arc-shaped sliding groove and the surface of one side of the auxiliary pushing block. The surface of one side of the auxiliary pushing block is in contact with the surface of one side of the filter plate.

[0016] Compared with the prior art, this utility model provides a highly practical inverter installation air duct with the following advantages:

[0017] 1. With the help of the snap-fit ​​groove, snap-fit ​​component and snap-fit ​​auxiliary component, the filter plate can be installed and disassembled quickly. The operation is simple and quick, and it is convenient to clean the impurities on the filter plate later. This avoids the problem of too many impurities on the filter plate affecting the use of the inlet and outlet air ducts, and ensures the stability of ventilation and heat dissipation of the inlet and outlet air ducts.

[0018] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall structure of a highly practical inverter installation duct proposed in this utility model;

[0020] Figure 2 A schematic diagram of the filter plate connection structure for a frequency converter installation duct, which is highly practical according to this utility model.

[0021] Figure 3 This utility model presents a schematic diagram of a snap-fit ​​assembly for a frequency converter mounting duct, which is highly practical.

[0022] Figure 4 This utility model presents a schematic diagram of a snap-fit ​​auxiliary component for installing air ducts in frequency converters, which is highly practical.

[0023] In the diagram: 1. Distribution cabinet casing; 2. Inlet and outlet air ducts; 201. Connecting groove; 3. Filter plate; 301. Snap-fit ​​groove; 4. Snap-fit ​​assembly; 401. Snap-fit ​​block; 402. Limiting post; 403. First spring; 404. Limit switch; 405. Rotating groove; 5. Snap-fit ​​auxiliary assembly; 501. Arc-shaped slide; 502. Second spring; 503. Auxiliary push block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Example: A highly practical inverter installation duct, such as Figures 1-4 As shown, it includes a power distribution cabinet shell 1, an inlet and outlet air duct 2 is provided on one side of the power distribution cabinet shell 1, a filter plate 3 is inserted into one side of the inlet and outlet air duct 2, and a snap-fit ​​component 4 and a snap-fit ​​auxiliary component 5 are provided on the outside of the filter plate 3.

[0027] The filter plate 3 has a snap-fit ​​groove 301 on its outer side;

[0028] The snap-fit ​​assembly 4 includes a snap-fit ​​block 401, a limiting post 402 connected below the snap-fit ​​block 401, and a first spring 403 sleeved on the outside of the limiting post 402;

[0029] The snap-fit ​​auxiliary component 5 includes an auxiliary push block 503 that slides inside the inlet and outlet air duct 2, and a second spring 502 is provided on one side of the auxiliary push block 503.

[0030] A connecting groove 201 is provided through one side of the air inlet / outlet duct 2, and the filter plate 3 is inserted into the connecting groove 201.

[0031] The filter plate 3 includes rotating grooves 405 on the inner walls of opposite sides of the connecting groove 201. The two rotating grooves 405 are located on the same vertical plane. The snap-fit ​​block 401 rotates inside the rotating groove 405 and is inclined inward at a certain angle. Two snap-fit ​​grooves 301 are symmetrically opened on one side of the filter plate 3, and the snap-fit ​​block 401 is inserted into the snap-fit ​​groove 301.

[0032] The locking block 401 is rotatably connected to the limiting post 402 on the side away from the filter plate 3. The end of the limiting post 402 away from the locking block 401 is inserted into the inner wall of one end of the rotating groove 405. The two ends of the first spring 403 are fixedly connected to one end of the limiting post 402 and the inner wall of one side of the connecting groove 201.

[0033] The connecting groove 201 has arc-shaped grooves 501 on both sides of its inner wall. A second spring 502 is installed inside the arc-shaped groove 501. The inner diameter of the groove opening of the arc-shaped groove 501 is smaller than the outer diameter of the second spring 502. An auxiliary pushing block 503 is slidably installed inside the arc-shaped groove 501. The two ends of the second spring 502 are fixedly connected to one side of the inner wall of the arc-shaped groove 501 and one side of the auxiliary pushing block 503. One side of the auxiliary pushing block 503 is in contact with one side of the filter plate 3.

[0034] When the filter plate 3 is not installed with the inlet / outlet air duct 2, the locking block 401 is in its original tilted state, the first spring 403 is not compressed, the auxiliary pushing block 503 is located in the middle of the arc-shaped slide groove 501, and the second spring 502 is not stretched. When the filter plate 3 is inserted into the connecting groove 201 on the inlet / outlet air duct 2, the insertion end of the filter plate 3 first contacts the locking block 401 and compresses it, causing the locking block 401 to enter the rotating groove 405 under the compression of the filter plate 3. The first spring 403 is compressed, so that the locking block 401 does not affect the insertion of the filter plate 3 and continues to push the filter plate 3 inward. When the insertion end of the filter plate 3 contacts the auxiliary pushing block 503, it drives the auxiliary pushing block 503 and the filter plate 3 to move inward simultaneously. The second spring 502 is stretched. When the filter plate 3 is pushed to a position where it can no longer be pushed, the locking block engages. Block 401 and the snap-fit ​​groove 301 are located on the same vertical plane. The first spring 403 is not compressed. Under the rebound action of the first spring 403, the snap-fit ​​block 401 returns to its original position. At this time, the filter plate 3 is released. Under the rebound action of the second spring 502, the filter plate 3 is moved back. The snap-fit ​​block 401 snaps into the snap-fit ​​groove 301, completing the installation of the filter plate 3. When the filter plate 3 is to be removed, simply remove the snap-fit ​​block 401 from the snap-fit ​​groove 301 to complete the removal of the filter plate 3. With the action of the snap-fit ​​groove 301, the snap-fit ​​component 4 and the snap-fit ​​auxiliary component 5, the installation and removal of the filter plate 3 can be completed quickly. The operation is simple and quick, which facilitates the cleaning of impurities on the filter plate 3 later, avoiding the problem of too many impurities on the filter plate 3 affecting the use of the inlet and outlet air duct 2, and ensuring the stability of ventilation and heat dissipation of the inlet and outlet air duct 2.

[0035] like Figures 1-4 As shown, two air inlet and outlet pipes 2 are installed on one side of the power distribution cabinet shell 1, and the two air inlet and outlet pipes 2 are located on the same vertical plane.

[0036] When cold air enters the distribution cabinet housing 1 through the lower air inlet / outlet duct 2, the cold air entering the distribution cabinet housing 1 enters the inverter's dedicated air duct, ventilating and cooling the inverter. The hot air inside the inverter's air duct, under the action of air circulation, drives the hot air out through the upper air inlet / outlet duct 2, repeating the cycle. Under the action of the air inlet / outlet duct 2, the inverter can be ventilated and cooled, ensuring the stability of the inverter during use.

[0037] like Figures 1-4 As shown, the outer end of the limiting post 402 extends out of the outer surface of the air inlet / outlet pipe 2, and the outer end of the limiting post 402 is fixedly connected to the limit switch 404.

[0038] When the filter plate 3 is inserted into the connecting groove 201, the snap-fit ​​block 401 snaps into the snap-fit ​​groove 301. At this time, the first spring 403 is not stretched or compressed, and the switch handle 404 is in contact with the surface of the inlet and outlet air duct 2. When it is necessary to remove the filter plate 3, simply press the filter plate 3 inward and pull the switch handle 404 outward to make the snap-fit ​​block 401 disengage from the snap-fit ​​groove 301. Under the rebound action of the second spring 502 and the auxiliary pushing block 503, the filter plate 3 is moved outward to complete the removal of the filter plate 3.

[0039] Working principle: When the filter plate 3 and the inlet / outlet air duct 2 are not installed, the locking block 401 is in its original tilted state, the first spring 403 is not compressed, the auxiliary pushing block 503 is located in the middle of the arc-shaped slide groove 501, the second spring 502 is not stretched, and the switch handle 404 is in contact with the surface of the inlet / outlet air duct 2. When the filter plate 3 is inserted into the connecting groove 201 on the inlet / outlet air duct 2, the insertion end of the filter plate 3 first contacts the locking block 401 and compresses the locking block 401, causing the locking block 401 to enter the rotating groove 405 under the compression of the filter plate 3. The first spring 403 is compressed and continues to push the filter plate 3 inward. When the insertion end of the filter plate 3 contacts the auxiliary pushing block 503, it drives the auxiliary pushing block 503 and the filter plate 3 to move together. Simultaneously moving inward, the second spring 502 is stretched. When the filter plate 3 is pushed to a position where it can no longer be pushed, the first spring 403 is not compressed. Under the rebound action of the first spring 403, the locking block 401 returns to its original position. At this time, the filter plate 3 is released. Under the rebound action of the second spring 502, the filter plate 3 is driven to move back. The locking block 401 engages with the locking groove 301, completing the installation of the filter plate 3. When it is necessary to remove the filter plate 3, simply press the filter plate 3 inward and pull the switch handle 404 outward to disengage the locking block 401 from the locking groove 301. Under the rebound action of the second spring 502 and the auxiliary pushing block 503, the filter plate 3 is driven to move outward, completing the removal of the filter plate 3.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A highly practical inverter installation duct, including a distribution cabinet housing (1), characterized in that, The distribution cabinet housing (1) has an inlet and outlet air duct (2) on one side, and a filter plate (3) is inserted into one side of the inlet and outlet air duct (2). The filter plate (3) is provided with a snap-fit ​​component (4) and a snap-fit ​​auxiliary component (5) on the outside. The filter plate (3) has a snap-fit ​​groove (301) on its outer side; The snap-fit ​​assembly (4) includes a snap-fit ​​block (401), a limiting post (402) is connected below the snap-fit ​​block (401), and a first spring (403) is sleeved on the outside of the limiting post (402); The snap-fit ​​auxiliary component (5) includes an auxiliary push block (503) that slides inside the inlet and outlet air duct (2), and a second spring (502) is provided on one side of the auxiliary push block (503).

2. The highly practical inverter installation duct according to claim 1, characterized in that, Two air inlet and outlet pipes (2) are installed on one side of the outer shell (1) of the power distribution cabinet, and the two air inlet and outlet pipes (2) are located on the same vertical plane.

3. The highly practical inverter installation duct according to claim 2, characterized in that, A connecting groove (201) is provided through one side of the air inlet / outlet duct (2), and the filter plate (3) is inserted into the connecting groove (201).

4. The highly practical inverter installation duct according to claim 3, characterized in that, The filter plate (3) includes rotating grooves (405) on the inner walls of opposite sides of the connecting groove (201). The two rotating grooves (405) are located on the same vertical plane. The snap-fit ​​block (401) rotates inside the rotating groove (405) and is inclined inward at a certain angle. Two snap-fit ​​grooves (301) are symmetrically opened on one side of the filter plate (3). The snap-fit ​​block (401) is inserted into the snap-fit ​​groove (301).

5. The highly practical inverter installation duct according to claim 4, characterized in that, The limiting post (402) is rotatably connected to the surface of the snap-fit ​​block (401) away from the filter plate (3). The end of the limiting post (402) away from the snap-fit ​​block (401) is inserted into the inner wall of one end of the rotating groove (405). The opposite ends of the first spring (403) are fixedly connected to one end of the limiting post (402) and the inner wall of one side of the connecting groove (201).

6. The highly practical inverter installation duct according to claim 5, characterized in that, The outer end of the limiting post (402) extends out of the outer surface of the inlet and outlet air duct (2), and the outer end of the limiting post (402) is fixedly connected to a limit switch (404).

7. The highly practical inverter installation duct according to claim 3, characterized in that, The connecting groove (201) has arc-shaped grooves (501) on both sides of its inner wall. The second spring (502) is installed inside the arc-shaped groove (501). The inner diameter of the arc-shaped groove (501) is smaller than the outer diameter of the second spring (502). The auxiliary pushing block (503) is slidably installed inside the arc-shaped groove (501). The two ends of the second spring (502) are fixedly connected to the inner wall of one side of the arc-shaped groove (501) and the surface of one side of the auxiliary pushing block (503). The surface of one side of the auxiliary pushing block (503) is in contact with the surface of one side of the filter plate (3).

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