A silent type frequency converter assembly

Abstract

The utility model discloses a kind of mute type frequency converter components, belong to frequency converter field, including box and two mounting plates, two mounting plates are respectively located in the upper and lower sides inside box, the side of two mounting plates is fixedly connected with two fixed rods, the outer wall of fixed rod is slidably connected with two sliding blocks, between two sliding blocks, fixedly connected with a spring, a spring fixed sleeve is connected in the outer wall of fixed rod, in the scheme, a spring, second spring and third spring constitute shock-absorbing system, division of labor and cooperation realizes efficient shock-absorbing and noise reduction, in horizontal direction, a spring and second spring cooperate with each other, effectively buffer transverse vibration generated when frequency converter body operates, limit the displacement of sliding block on fixed rod, reduce vibration transmission to box;In vertical direction, third spring provides elastic support for placing frame, three synergies, all-around weaken vibration amplitude, significantly reduce equipment operating noise.

Description

Technical Field

[0001] This utility model relates to the field of frequency converters, and more specifically, to a silent frequency converter assembly. Background Technology

[0002] As a power electronic device, frequency converters are widely used in industrial automation, building control, new energy and other fields. They achieve energy saving and precise control by adjusting the speed of the motor. However, the operation of the electronic components and the vibration of the mechanical parts inside the frequency converter will generate noise. Noise problems not only interfere with the normal operation of the equipment, but may also affect the work efficiency and health of personnel.

[0003] In the prior art, such as Chinese patent "CN213244546U", a "noise reduction device for a frequency converter" is proposed, which includes a base plate, a motion wheel fixedly installed at the front end of the base plate, a sound insulation cover fixedly installed at the upper end of the base plate, a frequency converter body installed inside the sound insulation cover at the upper end of the base plate, a control panel installed at the front end of the frequency converter body, a cavity horizontally opened inside the base plate, a screw horizontally movably inserted inside the cavity, an operating block fixedly installed at the left end of the screw, a sliding groove horizontally opened at the upper end of the base plate, and a limit plate wound around the outer end of the screw.

[0004] However, in the aforementioned patent, the device was fixed when soundproofing the frequency converter, but too much contact between the device and the equipment would cause a large amount of noise to be transmitted to the device, reducing the noise reduction effect. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In view of the problems existing in the prior art, the purpose of this utility model is to provide a silent frequency converter component, which can reduce the noise of the frequency converter during operation.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] A silent frequency converter assembly includes a housing and two mounting plates. The two mounting plates are located on the upper and lower sides of the housing, respectively. Two fixing rods are fixedly connected to one side of each mounting plate. Two sliding blocks are slidably connected to the outer wall of each fixing rod. A first spring is fixedly connected between the two sliding blocks and is fixedly sleeved on the outer wall of the fixing rod. A second spring is fixedly connected to the side of each sliding block away from the first spring. The ends of the two second springs away from the sliding blocks are fixedly connected to the mounting plates, and both second springs are sleeved on the outside of the fixing rods.

[0010] Furthermore, a support rod is rotatably connected to the outer wall of the sliding block, and a placement frame is rotatably connected to the end of the support rod away from the sliding block. A No. 3 spring is fixedly connected between the placement frame and the middle of the mounting plate. The mounting plate located below is fixedly connected to the bottom of the housing. The two mounting plates are mirror images of each other, and the inverter body is placed between the two placement frames.

[0011] Furthermore, a bidirectional screw is rotatably connected to the upper part of the box body, and two limiting rods are fixedly connected to the upper part of the box body, with the bidirectional screw located in the middle of the two limiting rods.

[0012] Furthermore, both sides of the outer wall of the bidirectional screw are threaded with moving blocks, and the two moving blocks and the limiting rod are slidably connected.

[0013] Furthermore, two connecting rods are rotatably connected to the lower part of each of the two movable blocks, and the ends of the four connecting rods away from the movable blocks are rotatably connected to one side of the mounting plate located above the housing.

[0014] Furthermore, a handle is fixedly connected to one end of the bidirectional screw in the housing.

[0015] Furthermore, a door is rotatably connected to one side of the enclosure, and sound insulation cotton is installed on both sides inside the enclosure.

[0016] 3. Beneficial effects

[0017] Compared with existing technologies, the advantages of this utility model are:

[0018] (1) In this scheme, spring No. 1, spring No. 2 and spring No. 3 form a shock absorption system. They work together to achieve efficient shock absorption and noise reduction. In the horizontal direction, spring No. 1 and spring No. 2 cooperate with each other to effectively buffer the lateral vibration generated by the inverter body during operation, limit the displacement of the sliding block on the fixed rod, and reduce the transmission of vibration to the housing. In the vertical direction, spring No. 3 provides elastic support for the placement frame. The three work together to weaken the vibration amplitude in all directions and greatly reduce the operating noise of the equipment.

[0019] (2) In this scheme, the bidirectional screw passes through the middle of the two limit rods. With the bidirectional thread design, when it rotates, it can drive the moving blocks on both sides to move in opposite or opposite straight lines along the rod. The limit rods ensure that the moving blocks move smoothly and improve the adjustment stability. The connecting rod below the moving block is rotatably connected to the mounting plate above. When the moving block moves, the mounting plate is moved up and down through the connecting rod, and its height is quickly adjusted to achieve stable limiting of the inverter body. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the box in this utility model;

[0022] Figure 3 for Figure 2 Enlarged structural diagram of region A in the middle;

[0023] Figure 4 This is a schematic diagram showing the positional relationship between the bidirectional screw and the housing in this utility model.

[0024] Explanation of the labels in the diagram:

[0025] 1. Enclosure; 11. Enclosure door; 12. Sound insulation cotton; 13. Inverter body; 14. Mounting plate; 15. Fixing rod; 16. Spring No. 1; 17. Spring No. 2; 18. Sliding block; 19. Support rod; 2. Placement frame; 21. Spring No. 3; 22. Double-acting screw; 23. Limiting rod; 24. Moving block; 25. Connecting rod; 26. Handle. Detailed Implementation

[0026] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Example 1:

[0030] Please see Figure 1-4 A silent frequency converter assembly includes a housing 1 and two mounting plates 14. The two mounting plates 14 are located on the upper and lower sides inside the housing 1, respectively. Two fixing rods 15 are fixedly connected to one side of each mounting plate 14. Two sliding blocks 18 are slidably connected to the outer wall of the fixing rods 15. A first spring 16 is fixedly connected between the two sliding blocks 18 and is fixedly sleeved on the outer wall of the fixing rods 15. A second spring 17 is fixedly connected to the side of each sliding block 18 away from the first spring 16. The end of spring 17 away from sliding block 18 is fixedly connected to mounting plate 14. Two second springs 17 are sleeved on the outside of fixed rod 15. Support rod 19 is rotatably connected to the outer wall of sliding block 18. Placement frame 2 is rotatably connected to the end of support rod 19 away from sliding block 18. Third spring 21 is fixedly connected between placement frame 2 and the middle of mounting plate 14. The mounting plate 14 located below is fixedly connected to the bottom of housing 1. The two mounting plates 14 are mirror images of each other. Inverter body 13 is placed between the two placement frames 2.

[0031] In this embodiment, spring 16, spring 17, and spring 21 constitute a three-dimensional vibration damping system. When the inverter body 13 vibrates during operation, spring 16 and spring 17 can effectively buffer the horizontal vibration, limit the lateral displacement of the sliding block 18 on the fixed rod 15, and reduce the vibration transmission between the mounting plate 14 and the housing 1. Spring 21 further provides elastic support for the placement frame 2, weakens the vibration amplitude in all directions, and significantly reduces the noise caused by vibration, meeting the usage requirements of noise-sensitive places such as medical and laboratory settings.

[0032] Example 2:

[0033] Please see Figure 1-4 A silent inverter assembly has a bidirectional screw 22 rotatably connected to the upper part of the interior of the housing 1. Two limiting rods 23 are fixedly connected to the upper part of the interior of the housing 1. The bidirectional screw 22 is located in the middle of the two limiting rods 23. Moving blocks 24 are threadedly connected to both sides of the outer wall of the bidirectional screw 22. The two moving blocks 24 are slidably connected to the limiting rods 23. Two connecting rods 25 are rotatably connected to the lower part of the two moving blocks 24. The ends of the four connecting rods 25 away from the moving blocks 24 are rotatably connected to one side of the mounting plate 14 located in the upper part of the housing 1. A handle 26 is fixedly connected to one end of the bidirectional screw 22 located in the housing 1. A door 11 is rotatably connected to one side of the housing 1. Sound insulation cotton 12 is installed on both sides of the interior of the housing 1.

[0034] In this embodiment, the bidirectional screw 22 passes through the middle of the two limiting rods 23. Its unique bidirectional thread design allows the moving blocks 24 on both sides to move in opposite directions along the bidirectional screw 22 when rotating. The sliding connection between the moving blocks 24 and the limiting rods 23 effectively restricts the movement trajectory of the moving blocks 24, ensuring that they can only move smoothly in a straight line, avoiding positional deviation caused by rotation, and improving the stability and adjustment accuracy of the structure.

[0035] The connecting rod 25, which is rotatably connected below the movable block 24, forms a linkage bridge between the movable block 24 and the upper mounting plate 14. When the movable block 24 moves under the drive of the bidirectional screw 22, the connecting rod 25 drives the mounting plate 14 to move up and down around the rotation node. This design efficiently converts the rotational motion of the screw into the vertical motion of the mounting plate 14, making it convenient and quick to adjust the height of the mounting plate 14, thereby completing the squeezing and limiting of the inverter body 13.

[0036] The handle 26, which is fixedly connected to one end of the bidirectional screw 22, provides a convenient operating interface for users. By manually rotating the handle 26, the bidirectional screw 22 can be easily driven to rotate. The sound insulation cotton 12 installed on both sides inside the housing 1 can effectively absorb the noise generated during the operation of the frequency converter and block the sound from spreading to the outside.

[0037] Working principle: When it is necessary to install inverter bodies 13 of different thicknesses, rotate the handle 26 at one end of the bidirectional screw 22. The bidirectional screw 22 will rotate accordingly. Since the threads on both sides of the bidirectional screw 22 rotate in opposite directions, its rotation will drive the moving blocks 24 on both sides of the outer wall to move in opposite directions along the limiting rod 23. The connecting rod 25 connected to the lower part of the moving block 24 will convert the linear motion of the moving block 24 into a pushing and pulling action on the upper mounting plate 14, thereby realizing the up and down movement of the upper mounting plate 14, flexibly adjusting the distance between the two mounting plates 14, and completing the compression and limiting of the inverter body 13.

[0038] The inverter body 13 is placed between the upper and lower placement frames 2. The No. 3 spring 21, which is fixedly connected to the middle of the mounting plate 14, will generate elastic deformation when the inverter body 13 is placed, providing upward support and initially stabilizing the position of the inverter body 13.

[0039] When the inverter body 13 generates horizontal vibration during operation, the placement frame 2 drives the sliding block 18 to slide on the fixed rod 15 through the rotating support rod 19. At this time, the first spring 16 and the second spring 17 between the two sliding blocks 18 will undergo compression or stretching deformation. The elastic force of the springs is used to buffer the vibration and convert the kinetic energy generated by the vibration into the elastic potential energy of the first spring 16, thereby weakening the horizontal vibration amplitude and reducing the vibration transmitted to the housing 1.

[0040] The sound insulation cotton 12 installed on both sides inside the housing 1 can absorb the noise generated by the inverter body 13 during operation and prevent the sound from spreading to the outside. Combined with the spring-slider damping structure, it reduces vibration noise from the source. The two work together to achieve efficient and quiet operation of the components.

[0041] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A silent inverter assembly, comprising a housing (1) and two mounting plates (14), characterized in that: The two mounting plates (14) are located on the upper and lower sides of the box (1) respectively. Two fixing rods (15) are fixedly connected to one side of each of the two mounting plates (14). Two sliding blocks (18) are slidably connected to the outer wall of the fixing rods (15). A first spring (16) is fixedly connected between the two sliding blocks (18). The first spring (16) is fixedly sleeved on the outer wall of the fixing rod (15). A second spring (17) is fixedly connected to the side of each of the two sliding blocks (18) away from the first spring (16). The end of each of the two second springs (17) away from the sliding block (18) is fixedly connected to the mounting plate (14). Both of the two second springs (17) are sleeved on the outside of the fixing rod (15).

2. The silent frequency converter assembly according to claim 1, characterized in that: The outer wall of the sliding block (18) is rotatably connected to a support rod (19). The end of the support rod (19) away from the sliding block (18) is rotatably connected to a placement frame (2). A No. 3 spring (21) is fixedly connected between the middle of the placement frame (2) and the mounting plate (14). The mounting plate (14) located below is fixedly connected to the bottom of the housing (1). The two mounting plates (14) are mirror images of each other. The inverter body (13) is placed between the two placement frames (2).

3. The silent inverter assembly according to claim 1, characterized in that: A bidirectional screw (22) is rotatably connected to the upper part of the inside of the housing (1), and two limiting rods (23) are fixedly connected to the upper part of the inside of the housing (1). The bidirectional screw (22) is located in the middle of the two limiting rods (23).

4. A silent frequency converter assembly according to claim 3, characterized in that: The two sides of the outer wall of the bidirectional screw (22) are threaded with moving blocks (24), and the two moving blocks (24) and the limiting rod (23) are slidably connected.

5. A silent frequency converter assembly according to claim 4, characterized in that: Two connecting rods (25) are rotatably connected to the bottom of each of the two movable blocks (24), and the ends of the four connecting rods (25) away from the movable blocks (24) are rotatably connected to one side of the mounting plate (14) located inside the box (1).

6. A silent frequency converter assembly according to claim 5, characterized in that: The bidirectional screw (22) is fixedly connected to a handle (26) at one end of the housing (1).

7. A silent frequency converter assembly according to claim 1, characterized in that: A door (11) is rotatably connected to one side of the box (1), and sound insulation cotton (12) is installed on both sides inside the box (1).

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