Filter device of magnetic fan inverter and magnetic fan inverter

Abstract

The present disclosure relates to a filter cotton device of a magnetic fan inverter and a magnetic fan inverter, wherein the filter cotton device comprises: a ventilation duct, which is ventilated in a vertical direction and is used to be arranged at the bottom of a cabinet of the magnetic fan inverter; a first filter screen, which is detachably embedded in the ventilation duct and faces the ventilation direction; a second filter screen, which is embedded in the ventilation duct, faces the ventilation direction, and is located on the inner side of the first filter screen; a filter cotton layer, which is sandwiched between the first filter screen and the second filter screen; and an air volume detector, which is arranged in the ventilation duct close to the filter cotton layer and sandwiches the filter cotton layer between the first filter screen and the second filter screen. Through the detachable connection between the first filter screen and the ventilation duct and the setting of the air volume detector, the air volume in the ventilation duct can be monitored in real time, so as to judge whether the filter cotton layer needs to be replaced. When the filter cotton layer needs to be replaced, the filter cotton layer can be replaced by disassembling the first filter screen, thereby improving the filter cotton replacement efficiency and the safety of the staff when replacing the filter cotton layer.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electrical equipment, and in particular to a cotton filter device of a magnetic fan inverter and a magnetic fan inverter. Background Art

[0002] Most wind turbine tower-bottom inverters use an air-cooling design, which greatly reduces the chance of component damage caused by water leakage, high humidity and other factors. Because this type of inverter is installed at the bottom of the tower, the ventilation duct filter cotton will be used for a long time, and a lot of dust will accumulate, affecting the ventilation and heat dissipation effect, causing the equipment to overheat and shut down. When the staff replaces the filter cotton, they need to shut down and disconnect the 690V circuit breaker. The circuit breaker may be accidentally triggered by the staff at the bottom of the tower or for other reasons, causing the inverter power cabinet to be energized. When replacing the new filter cotton, the machine-side and grid-side reactors need to be removed. During the disassembly and installation of the reactor, the cabinet space is small and the reactor is heavy, making it inconvenient to move. There is a risk of squeezing and injury to the operators. Utility Model Content

[0003] The purpose of the present disclosure is to provide a filter cotton device of a magnetic suction fan inverter and a magnetic suction fan inverter, so as to at least partially solve the technical problems existing in the related art.

[0004] In order to achieve the above-mentioned object, the present disclosure provides a filter cotton device of a magnetic suction fan inverter, comprising:

[0005] The ventilation duct is ventilated in the vertical direction and is used to be arranged at the bottom of the cabinet of the magnetic suction fan inverter;

[0006] A first filter screen is detachably embedded in the ventilation duct and faces the ventilation direction;

[0007] A second filter screen is embedded in the ventilation duct, faces the ventilation direction and is located on the inner side of the first filter screen;

[0008] A filter cotton layer, sandwiched between the first filter screen and the second filter screen; and

[0009] An air volume detector is arranged in the ventilation duct close to the filter cotton layer.

[0010] Optionally, it further comprises an installation component for installing the first filter screen, the installation component comprising:

[0011] A first socket, fixed on the first filter screen and formed with a first plug hole opening along the side;

[0012] A second socket is fixed on the ventilation duct and is formed with a second socket coaxially arranged with the first socket; and

[0013] The two ends of the latch pin along the axial direction are respectively inserted into the first insertion hole and the second insertion hole along the side direction.

[0014] Optionally, it also includes a magnetic component located between the first filter screen and the second filter screen, wherein the magnetic component is installed on one of the first filter screen and the second filter screen and magnetically cooperates with the other of the first filter screen and the second filter screen.

[0015] Optionally, the second filter screen is made of magnetic metal, the magnetic attraction component is installed on the first filter screen, and the magnetic attraction component is a strong magnet.

[0016] Optionally, a first installation groove is formed on a side of the first filter screen close to the second filter screen and is recessed in a direction away from the second filter screen, and the magnetic attraction member is accommodated in the first installation groove.

[0017] Optionally, it also includes a dehumidification layer composed of a plurality of silica gel particles, and the dehumidification layer is arranged in contact with the filter cotton layer.

[0018] Optionally, it also includes a mounting frame which is embedded in the ventilation duct along the ventilation direction and is located between the first filter screen and the second filter screen for mounting the air volume detector.

[0019] Optionally, a second installation groove is formed on a side of the first filter screen facing the second filter screen and is recessed in a direction away from the second filter screen, and the filter cotton layer is accommodated in the second installation groove.

[0020] Optionally, a handle is provided on a side of the first filter screen facing away from the second filter screen.

[0021] According to a second aspect of the present disclosure, there is provided a magnetic fan inverter, comprising a cabinet, wherein a cotton filter device as described above is arranged at the bottom of the cabinet.

[0022] Through the above technical scheme, the filter cotton layer is sandwiched between the first filter screen and the second filter screen. Through the detachable connection between the first filter screen and the ventilation duct and the setting of the air volume detector, the air volume in the ventilation duct can be monitored in real time, so as to determine whether the filter cotton layer needs to be replaced. When the filter cotton layer needs to be replaced, the filter cotton layer can be replaced by removing the first filter screen. No special person is required to monitor, which reduces the personnel demand, improves the filter cotton replacement efficiency and the safety of the staff when replacing the filter cotton layer. At the same time, it can ensure that the ventilation effect of the filter cotton device can always meet the ventilation requirements, effectively ensuring the normal operation of the magnetic suction fan inverter.

[0023] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0025] Figure 1-Figure 4 It is a partial structural schematic diagram of a cotton filter device of a magnetic fan inverter provided in an exemplary embodiment of the present disclosure;

[0026] Figure 5 Schematic diagram of the structure of the first filter provided by an exemplary embodiment of the present disclosure.

[0027] Description of Reference Numerals

[0028] 1-first filter; 11-second mounting slot; 2-second filter; 3-filter cotton layer; 41-air volume detector; 42-mounting frame; 5-ventilation duct; 51-entrance; 61-magnetic element; 62-first mounting slot; 71-first socket; 72-second socket; 73-latch; 8-dehumidification layer; 9-handle. DETAILED DESCRIPTION

[0029] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0030] In the present disclosure, unless otherwise stated, directional words such as "inside" and "outside" are used in reference to the outline of the corresponding parts; directional words such as "upper", "lower", "top", "bottom", "horizontal" and "vertical" are defined based on the usage habits of the filter cotton device provided by the present disclosure. Specifically, reference can be made to Figure 1 The terms used in this disclosure, such as "first", "second", etc., are intended to distinguish one element from another and do not have order or importance. In addition, when the following description refers to the drawings, the same reference numerals in different drawings represent the same or similar elements.

[0031] Reference Figure 1-Figure 5The present disclosure provides a cotton filter device for a magnetic fan inverter, which may include a ventilation duct 5, a first filter screen 1, a second filter screen 2, a filter cotton layer 3 and an air volume detector 41. The ventilation duct 5 can integrate the external wind into the cabinet along the vertical direction, and the ventilation duct 5 can be arranged at the bottom of the cabinet of the magnetic fan inverter to ventilate the cabinet at the bottom of the cabinet. The ventilation duct 5 can be a main body structure formed at the bottom of the cabinet, or a pipe connected to the bottom of the cabinet. The first filter screen 1 and the second filter screen 2 can be respectively constructed as a mesh structure, and the first filter screen 1 and the second filter screen 2 can both face the ventilation direction, so as to intercept larger impurities while ensuring the ventilation volume. The first filter screen 1 can be detachably embedded in the ventilation duct 5, so that the first filter screen 1 can be disassembled and assembled according to the specific working conditions of the filter cotton device, and the outer contour edge of the first filter screen 1 can match the inner contour structure of the ventilation duct 5, so that the outer contour edge of the first filter screen 1 can be against the inner wall of the ventilation duct 5, thereby ensuring the reliability of the connection between the first filter screen 1 and the ventilation duct 5, while ensuring the filtering effect on impurities. The second filter screen 2 can be embedded in the ventilation duct 5, and the second filter screen 2 can be located on the inner side of the first filter screen 1 to further filter the wind body flowing through the first filter screen 1, and at the same time, the outer contour edge of the second filter screen 2 can match the inner contour structure of the ventilation duct 5, so that the outer contour edge of the second filter screen 2 can be against the inner wall of the ventilation duct 5, thereby ensuring the reliability of the connection between the second filter screen 2 and the ventilation duct 5, while ensuring the filtering effect on impurities. The filter cotton layer 3 can be used to further filter the air entering the cabinet, and protect the magnetic fan inverter from dust and other pollutants. The filter cotton layer 3 can be sandwiched between the first filter screen 1 and the second filter screen 2, so as to ensure the reliability of the installation position of the filter cotton layer 3. The air volume detector 41 can be set in the ventilation duct 5 close to the filter cotton layer 3, and the air volume detector 41 can be connected to the terminal device so that the operator can receive the air volume data detected by the air volume detector 41 at any time, and judge whether the filter cotton layer 3 needs to be replaced according to the ventilation volume.

[0032] Through the above technical scheme, the filter cotton layer 3 is sandwiched between the first filter screen 1 and the second filter screen 2. Through the detachable connection between the first filter screen 1 and the ventilation duct 5 and the setting of the air volume detector 41, the air volume in the ventilation duct 5 can be monitored in real time, so as to determine whether the filter cotton layer 3 needs to be replaced. When the filter cotton layer 3 needs to be replaced, the filter cotton layer 3 can be replaced by disassembling the first filter screen 1. No special person is required to monitor, which reduces the personnel demand, improves the filter cotton replacement efficiency and the safety of the staff when replacing the filter cotton layer. At the same time, it can ensure that the ventilation effect of the filter cotton device can always meet the ventilation requirements, effectively ensuring the normal operation of the magnetic suction fan inverter.

[0033] Reference Figure 1 and Figure 2, also includes an installation component for installing the first filter 1, and the installation component may include a first socket 71, a second socket 72 and a pin 73. The first socket 71 can be fixed on the first filter 1, and a first socket 71 may be formed with an opening along the lateral direction (i.e., along the horizontal direction). The second socket 72 can be fixed on the ventilation duct 5, and a second socket coaxially arranged with the first socket is formed, that is, the second socket also extends in the horizontal direction, and the pin 73 can be inserted into the first socket and the second socket laterally at both ends of the axial direction, respectively, so as to realize the detachable connection between the first filter 1 and the ventilation duct 5, and improve the stability of the installation of the first filter 1. In the present disclosure, the first socket can be a through hole, and the second socket can be a blind hole. In this way, it can be effectively avoided that the pin 73 extends too much out of the second socket when the pin 73 is inserted into the second socket after passing through the through hole, and the risk of the pin 73 being detached from the second socket 72 is effectively prevented. Refer to Figure 1 The second socket 72 can be set at the entrance 51 of the ventilation duct 5, the first filter 1 is embedded in the ventilation duct 5 near the entrance 51, and the first socket 71 is set at the bottom of the first filter 1. In this way, the two ends of the pin 73 respectively abut the edge of the entrance 51 and the bottom of the first filter 1, so that the pin 73 can also support the first filter 1 to prevent the first filter 1 from falling out of the ventilation duct 5 through the entrance 51.

[0034] Reference Figure 1 and Figure 3 The filter device may further include a magnetic member 61 located between the first filter screen 1 and the second filter screen 2. The magnetic member 61 may be installed on one of the first filter screen 1 and the second filter screen 2, and the magnetic member 61 may be magnetically matched with the other of the first filter screen 1 and the second filter screen 2. The magnetic attraction of the magnetic member 61 realizes a stable connection between the first filter screen 1 and the second filter screen 2, and also realizes a detachable connection between the first filter screen 1 and the second filter screen 2.

[0035] Furthermore, according to the embodiments provided in the present disclosure, the second filter 2 can be made of a magnetic metal, such as iron or other magnetic metals, and the magnetic attraction component 61 can be installed on the first filter 1, and the magnetic attraction component 61 can be a strong magnet, such as a strong magnet such as a neodymium iron boron magnet. Through the mutual magnetic attraction between the strong magnet and the first filter 1, the first filter 1 and the second filter 2 can be quickly installed by simply placing the second filter 2 in the corresponding position, thereby eliminating cumbersome installation steps and improving installation efficiency and installation accuracy.

[0036] Reference Figure 1 and Figure 3, a first mounting groove 62 is formed on the side of the first filter 1 close to the second filter 2, which is recessed in the direction away from the second filter 2. The magnetic component 61 is accommodated in the first mounting groove 62, which can ensure that the installation position of the magnetic component 61 is stable and avoid moving the magnetic component 61 or falling off the first filter 1. The inner contour structure of the first mounting groove 62 can match the outer contour structure of the magnetic component 61, so that the magnetic component 61 can be snapped into the first mounting groove 62, so as to ensure the connection strength between the magnetic component 61 and the first mounting groove 62, while realizing the detachable connection between the magnetic component 61 and the mounting groove 62. In order to further improve the connection strength between the magnetic component 61 and the first mounting groove 62, a backing adhesive can be pasted between the first mounting groove 62 and the magnetic component 61. In addition, by providing an inwardly concave groove on the first filter 1, the magnetic attraction member 61 will not protrude from the surface of the first filter 1 used to cooperate with the second filter 2, thereby reducing the gap between the relative sides of the first filter 1 and the second filter 2, so that the relative sides of the first filter 1 and the second filter 2 can be arranged in a close fit, thereby improving the integrity of the device.

[0037] Reference Figure 3 In the embodiment provided in the present disclosure, the number of the first mounting grooves 62 can be multiple, and the multiple first mounting grooves 62 can be arranged at intervals along the edge of the first filter 1. Correspondingly, the number of the magnetic suction members 61 can also be multiple, and the multiple magnetic suction members 61 are arranged one by one in the first mounting grooves 62 to further improve the magnetic suction strength between the first filter 1 and the second filter 2, and improve the reliability of the connection between the first filter 1 and the second filter 2.

[0038] Reference Figure 1 The filter cotton device also includes a dehumidification layer 8 composed of a plurality of silica gel particles. The dehumidification layer 8 is arranged in close contact with the filter cotton layer 3. By laying the dehumidification layer 8 of silica gel particles, the humidity in the ventilation duct 5 can be effectively reduced to ensure that dry air is inhaled into the cabinet, reduce damage to the equipment, and extend its service life. The dehumidification layer 8 can be arranged on the outside of the filter cotton layer 3 to effectively ensure that the air flowing through the filter cotton layer 3 is dry, avoid the formation of impurities such as mold on the filter cotton layer 3, and extend the service life of the filter cotton layer 3.

[0039] Reference Figure 1 and Figure 4The cotton filter device may further include a mounting frame 42 located between the first filter screen 1 and the second filter screen 2 along the ventilation direction, and the mounting frame 42 may be used to install the air volume detector 41. The cross section of the second filter screen 2 may be constructed as a U-shaped structure with an opening toward the first filter screen 1, and the mounting frame 42 may include two mounting beams arranged at intervals, and the two ends of the two mounting beams along the axial direction may abut against the two sides of the U-shaped structure along the width direction of the opening of the U-shaped structure, thereby realizing the connection between the mounting frame 42 and the second filter screen 2, and together with the second filter screen 2, enclose a space with a cross section of a square. The air volume detector 41 may be supported on the top of the mounting frame 42 to be accommodated in the square-shaped space, thereby ensuring the stability of the installation position of the air volume detector 41. In order to further improve the stability of the installation of the air volume detector 41, in the present disclosure, the mounting frame 42 and the second filter screen 2 may be fixed by welding.

[0040] Reference Figure 1 and Figure 5 A second installation groove 11 may be formed on the side of the first filter screen 1 facing the second filter screen 2, and the second installation groove 11 may be recessed in a direction away from the second filter screen 2, and the filter cotton layer 3 may be accommodated in the second installation groove 11. In this way, the problem of the filter cotton layer 3 falling off or shifting during ventilation can be effectively avoided, the filtering effect of the filter cotton layer 3 on the air body is ensured, and the quality of the air body passing through the ventilation duct 5 to the cabinet is ensured. Figure 1 As shown, in the present disclosure, the dehumidification layer 8 composed of silica gel particles can be laid in the second installation groove 11, and multiple silica gel particles can be collected and accommodated through the second installation groove 11. While ensuring the stability of the installation position of the dehumidification layer 8, it is also convenient to maintain and replace the dehumidification layer 8, thereby ensuring the continuity of the dehumidification effect.

[0041] Reference Figure 1 and Figure 2 The first filter screen 1 may be provided with a handle 9 on the side away from the second filter screen 2. The handle 9 makes the removal and installation of the first filter screen 1 more convenient and quick. In order to further improve the stability of the removal and installation process of the first filter screen 1 and reduce the risk of accidental injury, in the present disclosure, Figure 2 As shown, two handles 9 can be arranged on the first filter screen 1 at intervals, so that the operator can better control the movement of the first filter screen 1 during the disassembly and assembly process to avoid unnecessary damage.

[0042] The second aspect of the present disclosure provides a magnetic fan inverter. In the present disclosure, the magnetic fan inverter can be an inverter device, and the magnetic fan inverter can include a cabinet and a filter cotton device arranged at the bottom of the cabinet. The filter cotton device can be the filter cotton device provided in the present disclosure, and the magnetic fan inverter has all the beneficial effects of the filter cotton device provided in the present disclosure, which will not be repeated here.

[0043] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0044] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0045] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A filter cotton device for a magnetic fan inverter, characterized in that: include: The ventilation duct is ventilated in the vertical direction and is used to be arranged at the bottom of the cabinet of the magnetic suction fan inverter; A first filter screen is detachably embedded in the ventilation duct and faces the ventilation direction; A second filter screen is embedded in the ventilation duct, faces the ventilation direction, and is located on the inner side of the first filter screen; A filter cotton layer, sandwiched between the first filter screen and the second filter screen; and An air volume detector is arranged in the ventilation duct close to the filter cotton layer.

2. The filter cotton device according to claim 1, characterized in that: Also included is an installation component for installing the first filter screen, the installation component comprising: A first socket, fixed on the first filter screen and formed with a first plug hole opening along the side; A second socket is fixed on the ventilation duct and is formed with a second socket coaxially arranged with the first socket; and The two ends of the latch pin along the axial direction are respectively inserted into the first insertion hole and the second insertion hole along the side direction.

3. The filter cotton device according to claim 1 or 2, characterized in that: It also includes a magnetic attraction component located between the first filter screen and the second filter screen, wherein the magnetic attraction component is installed on one of the first filter screen and the second filter screen and is magnetically matched with the other of the first filter screen and the second filter screen.

4. The filter cotton device according to claim 3, characterized in that: The second filter screen is made of magnetic metal, the magnetic attraction component is installed on the first filter screen, and the magnetic attraction component is a strong magnet.

5. The filter cotton device according to claim 3, characterized in that: A first installation groove is formed on the side of the first filter screen close to the second filter screen and is recessed in a direction away from the second filter screen, and the magnetic attraction member is accommodated in the first installation groove.

6. The filter cotton device according to claim 1, characterized in that: It also includes a dehumidification layer composed of a plurality of silica gel particles, and the dehumidification layer is arranged in contact with the filter cotton layer.

7. The filter cotton device according to claim 1, characterized in that: It also includes a mounting frame located between the first filter screen and the second filter screen along the ventilation direction, and the mounting frame is used to mount the air volume detector.

8. The filter cotton device according to claim 1, characterized in that: A second installation groove which is recessed in a direction away from the second filter screen is formed on a side of the first filter screen facing the second filter screen, and the filter cotton layer is accommodated in the second installation groove.

9. The filter cotton device according to claim 1, characterized in that: A handle is provided on a side of the first filter screen away from the second filter screen.

10. A magnetic fan inverter, characterized in that: It comprises a cabinet body, and a filter cotton device according to any one of claims 1-9 is arranged at the bottom of the cabinet body.

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