Frequency conversion energy-saving device of fan

Abstract

The utility model belongs to the technical field of frequency conversion energy-saving devices, and particularly relates to a fan frequency conversion energy-saving device which comprises a frequency conversion controller, a closing door is connected to the front end face of the frequency conversion controller, a control panel is installed on the surface of the closing door in an embedded mode, and a heat dissipation window is connected to the side wall of a shell of the frequency conversion controller. The side wall of the frequency conversion controller shell is connected with a fixing block, a spring is installed in the fixing block, the end portion of the spring is connected with a supporting rod, and the end portion of the supporting rod is connected with a limiting plate. And the detachable connection of the heat dissipation window is realized through the limiting plate, the spring and the supporting rod. By means of the innovative design, when the heat dissipation window is blocked by accumulated dust, the heat dissipation window can be easily disassembled to be thoroughly cleaned, maintenance is convenient, and the cleaning effect is ensured. Meanwhile, the design simplifies the assembly process, effectively prevents poor heat dissipation of the variable frequency controller caused by blockage of the heat dissipation window, and guarantees stable operation of equipment.

Description

Technical Field

[0001] This utility model belongs to the technical field of frequency conversion energy-saving devices, specifically relating to frequency conversion energy-saving devices for fans. Background Technology

[0002] Variable frequency drive (VFD) energy-saving devices primarily utilize the switching action of power semiconductor devices to convert mains frequency power into electrical energy of another frequency; these are VFDs. A common installation method for VFDs is wall mounting. However, this method presents several problems. Due to the lack of adequate protection, dust from the external environment easily accumulates on the ventilation holes. Since the ventilation holes are integrally connected to the VFD's casing, cleaning them becomes very inconvenient. Furthermore, dust can easily clog the ventilation holes, thus affecting the VFD's normal heat dissipation efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a variable frequency energy-saving device for fans, aiming to solve the problem in the prior art where, due to the lack of sufficient protection, dust from the external environment easily accumulates on the heat dissipation holes of the variable frequency energy-saving device. Since the heat dissipation holes are integrally connected to the housing of the variable frequency energy-saving device, cleaning them becomes very inconvenient. Furthermore, dust easily clogs the heat dissipation holes, thus affecting the normal heat dissipation efficiency of the variable frequency energy-saving device.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a variable frequency energy-saving device for a fan, including a variable frequency controller, a closed door connected to the front end face of the variable frequency controller, a control panel embedded in the surface of the closed door, a heat dissipation window connected to the side wall of the variable frequency controller housing, a sponge pad connected to the back end face of the heat dissipation window, a fixing block connected to the side wall of the variable frequency controller housing, a spring installed inside the fixing block, a support rod connected to the end of the spring, and a limit plate connected to the end of the support rod.

[0005] In a preferred embodiment of the variable frequency energy-saving device for wind turbines of this utility model, the limiting plate is elastically telescopically connected to the fixing block through a support rod and a spring.

[0006] In a preferred embodiment of the variable frequency energy-saving device for fans of this utility model, the limiting plate is attached to the front end face of the heat dissipation window via a support rod.

[0007] As a preferred embodiment of the variable frequency energy-saving device for fans of this utility model, the heat dissipation window is detachably and fixedly connected to the variable frequency controller through a limiting plate.

[0008] As a preferred embodiment of the variable frequency energy-saving device for fans of this utility model, the variable frequency controller is connected to a power cord and a storage box on the opposite side wall of the heat dissipation window.

[0009] As a preferred embodiment of the variable frequency energy-saving device for fans of this utility model, the storage box is composed of a box body, a box cover, a hinge, and a buckle. The box cover is rotatably connected to the top of the box body by the hinge, and the box cover is detachably and fixedly connected to the box body by the buckle.

[0010] As a preferred embodiment of the variable frequency energy-saving device for fans of this utility model, the power cord is coiled and placed inside the storage box.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model adopts a separate design for the heat dissipation window and the inverter controller housing, and achieves detachable connection of the heat dissipation window through a limiting plate, spring, and support rod. This innovative design allows the heat dissipation window to be easily disassembled for thorough cleaning when it becomes clogged with dust, facilitating maintenance and ensuring effective cleaning. At the same time, this design simplifies the assembly process, effectively preventing poor heat dissipation of the inverter controller due to clogged heat dissipation windows, and ensuring stable equipment operation. In addition, a storage box is added, specifically designed for storing excessively long power cords. In practical applications, power cords often exceed the required length and are easily tangled. The storage box allows users to easily coil up and properly store excess power cords, effectively reducing tangling, maintaining a clean working environment, and improving ease of use and safety. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the disassembled structure of the main body and heat dissipation window of this utility model;

[0016] Figure 3 This is a schematic diagram of the main body structure from the right side;

[0017] Figure 4 This is a schematic diagram of the connection structure between the fixing block and the limiting plate of this utility model;

[0018] Figure 5 This is a schematic diagram of the storage box structure of this utility model.

[0019] In the diagram: 1. Variable frequency controller; 2. Closed door; 3. Control panel; 4. Heat dissipation window; 5. Fixing block; 6. Limiting plate; 7. Sponge pad; 8. Support rod; 9. Spring; 10. Power cord; 11. Storage box; 1101. Box body; 1102. Box lid; 1103. Hinge; 1104. Lock. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5 The present invention provides the following technical solution: a frequency converter energy-saving device for a fan, including a frequency converter 1, a closing door 2 connected to the front end of the frequency converter 1, a control panel 3 embedded in the surface of the closing door 2, a heat dissipation window 4 connected to the side wall of the housing of the frequency converter 1, a sponge pad 7 connected to the back end of the heat dissipation window 4, a fixing block 5 connected to the side wall of the housing of the frequency converter 1, a spring 9 installed inside the fixing block 5, a support rod 8 connected to the end of the spring 9, and a limit plate 6 connected to the end of the support rod 8.

[0022] In a preferred embodiment: the limiting plate 6 forms an elastic telescopic connection with the fixing block 5 through the support rod 8 and the spring 9.

[0023] In a preferred embodiment: the limiting plate 6 is attached to the front end face of the heat dissipation window 4 via the support rod 8.

[0024] In a preferred embodiment, the heat dissipation window 4 is detachably and fixedly connected to the frequency converter 1 via the limiting plate 6.

[0025] In this embodiment, firstly, the frequency converter 1 is a mature existing device, which has the functions of speed regulation and energy saving, improving power factor, reducing starting current, and avoiding energy waste. The frequency converter 1 used in this paper needs to be connected to the fan to achieve frequency conversion and energy saving of the fan. Finally, the above descriptions are all existing known technologies, and therefore will not be elaborated further in this paper.

[0026] Furthermore, during long-term use, the heat dissipation window 4 of the inverter controller 1 mounted on the wall is prone to accumulating dust from the external environment. The heat dissipation window 4 can be easily removed for cleaning through the elastic cooperation of the limiting plate 6, support rod 8, and spring 9. Specifically, simply push the limiting plate 6 downwards, causing the support rod 8 to compress the spring 9, resulting in a contraction deformation. The limiting plate 6 then moves away from the front end of the heat dissipation window 4. At this point, pulling the heat dissipation window 4 outwards will easily remove it from the side wall of the inverter controller 1's housing for easy cleaning and maintenance. Conversely, when installing the heat dissipation window 4, similarly, by pushing the limiting plate 6 downwards, the heat dissipation window 4 is pushed into the opening in the side wall of the housing. Then, releasing the limiting plate 6 will cause the elastic force of the spring 9 to return it to its original position, blocking the front end of the heat dissipation window 4 and thus fixing it in place.

[0027] It is worth mentioning that the back surface of the heat dissipation window 4 is also cleverly connected to the sponge pad 7. This design can not only effectively block external moisture from entering and allow the sponge pad 7 to absorb excess moisture, but also does not affect the heat dissipation effect, ensuring the stable operation of the frequency converter 1.

[0028] Example 2

[0029] Please see Figure 1-5 The inverter controller 1 is connected to a power cord 10 and a storage box 11 on the other side wall opposite the heat dissipation window 4.

[0030] In a preferred embodiment: the storage box 11 is composed of a box body 1101, a box lid 1102, a hinge 1103 and a latch 1104. The box lid 1102 is rotatably connected to the top of the box body 1101 through the hinge 1103, and the box lid 1102 is detachably and fixedly connected to the box body 1101 through the latch 1104.

[0031] In a preferred embodiment, the power cord 10 is coiled and placed inside the storage box 11.

[0032] In this embodiment, the frequency converter 1 needs to be connected to a power source to operate, and the connection is achieved through the power cord 10. To maintain a clean working environment and improve ease of use and safety, excess power cord 10 can be coiled up and placed in the storage box 11, effectively avoiding cable tangling.

[0033] Furthermore, the lid 1102 of the storage box 11 is rotatably connected to the top of the box body 1101 via a hinge 1103, making it easy to open and expose the internal space of the box body 1101. In addition, the locking buckle 1104 allows the lid 1102 to be securely attached and detached from the box body 1101, ensuring the practicality and safety of the storage box 11.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A variable frequency energy-saving device for a fan, comprising a variable frequency controller (1), wherein a closing door (2) is connected to the front end face of the variable frequency controller (1), and a control panel (3) is embedded in the surface of the closing door (2), characterized in that: The side wall of the housing of the frequency converter (1) is connected to a heat dissipation window (4), and the back end face of the heat dissipation window (4) is connected to a sponge pad (7). A fixing block (5) is connected to the side wall of the housing of the frequency converter (1). A spring (9) is installed inside the fixing block (5). A support rod (8) is connected to the end of the spring (9). A limit plate (6) is connected to the end of the support rod (8).

2. The variable frequency energy-saving device for fans according to claim 1, characterized in that: The limiting plate (6) is elastically telescopically connected to the fixing block (5) through the support rod (8) and the spring (9).

3. The variable frequency energy-saving device for fans according to claim 1, characterized in that: The limiting plate (6) is attached to the front end of the heat dissipation window (4) via the support rod (8).

4. The variable frequency energy-saving device for fans according to claim 1, characterized in that: The heat dissipation window (4) is detachably and fixedly connected to the frequency converter (1) through the limiting plate (6).

5. The variable frequency energy-saving device for fans according to claim 1, characterized in that: The variable frequency controller (1) is connected to a power cord (10) and a storage box (11) on the other side wall opposite the heat dissipation window (4).

6. The variable frequency energy-saving device for wind turbines according to claim 5, characterized in that: The storage box (11) is composed of a box body (1101), a box lid (1102), a hinge (1103), and a latch (1104). The box lid (1102) is rotatably connected to the top of the box body (1101) via the hinge (1103). The box lid (1102) and the box body (1101) are detachably and fixedly connected via the latch (1104).

7. The variable frequency energy-saving device for wind turbines according to claim 5, characterized in that: The power cord (10) is coiled and placed inside the storage box (11).

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