Frequency converter protection device for elevator door motor

Abstract

The utility model discloses a frequency converter protection device for an elevator door motor, which comprises a protection outer box, a frequency converter body is arranged in the protection outer box, one end of the side surface of the protection outer box is fixedly connected with a metal radiating fin, the upper end of the outer side of the protection outer box is clamped with a clamping plate, and one end of the bottom of the clamping plate is fixedly connected with a radiating frame. A dustproof filter screen is fixedly connected to one end of the inner side of the heat dissipation frame; an airflow cavity is formed in one end of the inner side of the protective outer box; according to the utility model, the metal radiating fins and the radiating frame are arranged to jointly form an efficient continuous radiating channel, the airflow cavity is arranged to facilitate the circulation of hot air, and when the heat generated by the frequency converter body and discharged from the radiating port is guided to the airflow cavity, the metal radiating fins and the radiating frame can quickly absorb the heat, so that the radiating efficiency of the frequency converter is improved. And meanwhile, due to the design of the heat dissipation frame and the dustproof filter screen, the overall heat dissipation performance is enhanced, and dust and other impurities are effectively prevented from entering the protection outer box.

Description

Technical Field

[0001] The utility model relates to the technical field of frequency converter protection equipment, in particular to a frequency converter protection device for an elevator door machine. Background Art

[0002] Elevator door machines usually use frequency converters to control the operation of the drive motor. The frequency converter is an electronic device that can adjust the motor speed as needed to achieve smooth opening and closing of the elevator door. The main function of the frequency converter protection device is to ensure the stability and safety of the frequency converter during the operation of the elevator door machine, and can effectively prevent external factors from damaging the internal circuits and components of the frequency converter.

[0003] By protecting the stable operation of the inverter, the protection device indirectly improves the operating efficiency of the elevator, reduces the downtime caused by inverter failure, and enables the elevator to serve passengers more efficiently. However, when the existing protection device protects the inverter, the internal filter easily blocks the heat dissipation area, resulting in the heat dissipation effect cannot be improved, and it is inconvenient to remove the filter. Utility Model Content

[0004] The purpose of the utility model is to provide a frequency converter protection device for an elevator door machine in order to solve the problem that when the existing protection device is protecting the frequency converter, the internal filter screen easily blocks the heat dissipation area, resulting in the failure to improve the heat dissipation effect and the inconvenience of removing the filter screen.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a frequency converter protection device for an elevator door machine, comprising: a protective outer box, a frequency converter body is arranged inside the protective outer box, a metal heat sink is fixedly connected to one end of the side surface of the protective outer box, a card plate is clamped at the upper end of the outer side of the protective outer box, a heat dissipation frame is fixedly connected to one end of the bottom of the card plate, a dust filter is fixedly connected to one end of the inner side of the heat dissipation frame, and an air flow cavity is opened at one end of the inner side of the protective outer box.

[0006] As a further solution of the utility model: a transparent protective film is provided at one end of the front side of the inverter body, an adhesive plate is fixedly connected to one end of the side of the transparent protective film, and a heat dissipation port is opened at one end of the side of the inverter body.

[0007] As a further solution of the utility model: a connecting block is fixedly connected to the upper end of the back side of the protective outer box, a limiting strip is inserted into the inner end of the connecting block, a mounting plate is fixedly connected to the lower end of the outer side of the protective outer box, and a bolt is provided at one end of the limiting strip.

[0008] As a further solution of the utility model: a display screen is provided at the other end of the front face of the inverter body, and an operation button is provided at the other end of the front face of the inverter body, and both the display screen and the operation button are compatible with the transparent protective film.

[0009] As a further solution of the utility model: a slot is provided at one end inside the metal heat sink, the slot is matched with the heat sink frame, and the metal heat sink is plugged into the heat sink frame.

[0010] As a further solution of the utility model: a limiting slot 1 is opened at the other end of the inner side of the connecting block, and a limiting slot 2 is opened at one end of the inner side of the mounting plate. Both the limiting slot 1 and the limiting slot 2 are adapted to the limiting strip. The other end of the bolt passes through the limiting strip and is threadedly connected to the protective outer box. A mounting hole is opened at one end inside the mounting plate.

[0011] As a further solution of the present invention: the metal heat sink and the heat sink frame are both arranged inside the airflow cavity, and the other end of the metal heat sink extends to protect the outside of the outer box.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model discloses that the metal heat sink and the heat sink frame are provided, and the two together form an efficient and continuous heat dissipation channel, and the airflow cavity is provided to facilitate the circulation of hot air, and when the heat generated by the inverter body and the heat discharged from the heat dissipation port is guided to the airflow cavity, the metal heat sink and the heat sink frame can quickly absorb the heat, and the absorbed heat is dissipated outward by the metal heat sink, and at the same time, the design of the heat sink frame and the dustproof filter not only expands the heat dissipation area and enhances the overall heat dissipation performance, but also effectively prevents dust and other impurities from entering the protective outer box, which ensures that the heat dissipation channel is unobstructed, avoids the reduction of heat dissipation efficiency or equipment failure caused by dust accumulation, and the heat dissipation efficiency is reduced. Through the connection between the protective outer box, the card plate and the heat dissipation frame, the dust filter can be easily and quickly taken out and cleaned; the setting of the transparent protective film effectively protects the inverter body from the influence of the external environment, and does not affect the observation of the operating status of the inverter body. The transparent protective film is fixed to the inverter body by adhesive board, which helps to maintain the hygiene of the operation interface and reduce the risk of incorrect operation; the inverter body is conveniently installed and fixed by the connecting block, the limit strip and the mounting plate, so that the protective device can flexibly adapt to different installation environments. At the same time, the use of bolts also ensures the stability and firmness of the installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the protective outer box in the utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the transparent protective film in the utility model;

[0017] Figure 4 It is a structural schematic diagram of the limiting strip in the utility model;

[0018] Figure 5 It is a schematic diagram of the structure of the metal heat sink in the utility model;

[0019] Figure 6 It is a structural schematic diagram of the heat dissipation frame in the utility model.

[0020] In the figure: 1. Protective outer box; 2. Inverter body; 3. Metal heat sink; 4. Card plate; 5. Heat dissipation frame; 6. Dust filter; 7. Air flow cavity; 8. Transparent protective film; 9. Adhesive board; 10. Heat dissipation port; 11. Connecting block; 12. Limiting strip; 13. Mounting plate; 14. Bolt; 15. Display screen; 16. Operation button; 17. Slot; 18. Limiting slot one; 19. Limiting slot two; 20. Mounting hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it 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 directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The following is an explanation of the embodiments of the present utility model based on the overall structure of the present utility model.

[0023] Reference Figures 1 to 6 In an embodiment of the utility model, a frequency converter protection device for an elevator door machine includes: a protective outer box 1, a frequency converter body 2 is arranged inside the protective outer box 1, a metal heat sink 3 is fixedly connected to one end of the side of the protective outer box 1, a card plate 4 is clamped on the upper end of the outer side of the protective outer box 1, a heat dissipation frame 5 is fixedly connected to one end of the bottom of the card plate 4, a dust filter 6 is fixedly connected to one end of the inner side of the heat dissipation frame 5, and an air flow cavity 7 is opened at one end of the inner side of the protective outer box 1.

[0024] Reference Figures 1 to 6A transparent protective film 8 is provided at one end of the front of the inverter body 2, and an adhesive plate 9 is fixedly connected to one end of the side of the transparent protective film 8. A heat dissipation port 10 is opened at one end of the side of the inverter body 2. A connecting block 11 is fixedly connected to the upper end of the back of the protective outer box 1. A limited position strip 12 is inserted into one end of the inner side of the connecting block 11. A mounting plate 13 is fixedly connected to the lower end of the outer side of the protective outer box 1. A bolt 14 is provided at one end of the limited position strip 12. A display screen 15 is provided at the other end of the front of the inverter body 2. An operation button 16 is provided at the other end of the front of the inverter body 2. The display screen 15 and the operation button 16 are both compatible with the transparent protective film 8. A slot 17 is provided at one end inside the heat sink 3, and the slot 17 is adapted to the heat sink frame 5. The metal heat sink 3 is plugged into the heat sink frame 5. A limiting slot 18 is provided at the other end inside the connecting block 11, and a limiting slot 2 19 is provided at one end inside the mounting plate 13. Both the limiting slot 18 and the limiting slot 2 19 are adapted to the limiting strip 12. The other end of the bolt 14 passes through the limiting strip 12 and is threadedly connected to the protective outer box 1. A mounting hole 20 is provided at one end inside the mounting plate 13. The metal heat sink 3 and the heat sink frame 5 are both arranged inside the airflow cavity 7, and the other end of the metal heat sink 3 extends to the outside of the protective outer box 1.

[0025] The above scheme is adopted: through the setting of the metal heat sink 3 and the heat dissipation frame 5, the two together constitute an efficient and continuous heat dissipation channel, and the setting of the airflow cavity 7 is conducive to the circulation of hot air. When the heat generated by the inverter body 2 and the heat dissipation port 10 is guided to the airflow cavity 7, the metal heat sink 3 and the heat dissipation frame 5 can quickly absorb the heat, and the metal heat sink 3 dissipates the absorbed heat outward. At the same time, the design of the heat dissipation frame 5 and the dust filter 6 not only expands the heat dissipation area, but also enhances the overall heat dissipation performance.

[0026] The working principle of the utility model is as follows: when in use, the metal heat sink 3 and the heat sink frame 5 are arranged to form an efficient and continuous heat dissipation channel, and the airflow cavity 7 is arranged to facilitate the circulation of hot air. When the heat generated by the inverter body 2 and the heat discharged by the heat dissipation port 10 is guided to the airflow cavity 7, the metal heat sink 3 and the heat sink frame 5 can quickly absorb the heat, and the metal heat sink 3 dissipates the absorbed heat outward. At the same time, the design of the heat sink frame 5 and the dust filter 6 not only expands the heat dissipation area and enhances the overall heat dissipation performance, but also effectively prevents dust and other impurities from entering the protective outer box 1, which ensures that the heat dissipation channel is unobstructed and avoids the decrease in heat dissipation efficiency or equipment failure caused by dust accumulation. And by protecting the connection between the outer box 1, the card plate 4 and the heat dissipation frame 5, the dust filter 6 can be easily and quickly taken out and cleaned; the setting of the transparent protective film 8 effectively protects the inverter body 2 from the influence of the external environment, and does not affect the observation of the operating status of the inverter body 2. The transparent protective film 8 is fixed to the inverter body 2 by gluing with an adhesive plate 9, which helps to maintain the hygiene of the operating interface and reduces the risk of erroneous operation; the inverter body 2 is conveniently installed and fixed by the connecting block 11, the limiting strip 12 and the mounting plate 13, so that the protection device can flexibly adapt to different installation environments. At the same time, the use of bolts 14 also ensures the stability and firmness of the installation.

[0027] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A frequency converter protection device for an elevator door machine, characterized in that: include: A protective outer box (1) is provided with an inverter body (2) inside the protective outer box (1), a metal heat sink (3) is fixedly connected to one end of the side of the protective outer box (1), a card plate (4) is clamped on the upper end of the outer side of the protective outer box (1), a heat dissipation frame (5) is fixedly connected to one end of the bottom of the card plate (4), a dust filter (6) is fixedly connected to one end of the inner side of the heat dissipation frame (5), and an airflow cavity (7) is opened at one end of the inner side of the protective outer box (1).

2. A frequency converter protection device for an elevator door machine according to claim 1, characterized in that: A transparent protective film (8) is provided at one end of the front face of the inverter body (2), an adhesive plate (9) is fixedly connected to one end of the side face of the transparent protective film (8), and a heat dissipation port (10) is provided at one end of the side face of the inverter body (2).

3. The inverter protection device for elevator door machine according to claim 1, characterized in that: The upper end of the back side of the protective outer box (1) is fixedly connected to a connection block (11), one end of the inner side of the connection block (11) is plugged with a limit strip (12), the lower end of the outer side of the protective outer box (1) is fixedly connected to a mounting plate (13), and one end of the limit strip (12) is provided with a bolt (14).

4. The inverter protection device for elevator door machine according to claim 2, characterized in that: A display screen (15) is provided at the other end of the front face of the inverter body (2), and an operation button (16) is provided at the other end of the front face of the inverter body (2), and both the display screen (15) and the operation button (16) are compatible with the transparent protective film (8).

5. The inverter protection device for elevator door machine according to claim 1, characterized in that: A slot (17) is provided at one end of the metal heat sink (3), the slot (17) is adapted to the heat sink frame (5), and the metal heat sink (3) is plugged into the heat sink frame (5).

6. The inverter protection device for elevator door machine according to claim 3, characterized in that: A limiting slot 1 (18) is provided at the other end of the inner side of the connecting block (11), and a limiting slot 2 (19) is provided at one end of the inner side of the mounting plate (13). Both the limiting slot 1 (18) and the limiting slot 2 (19) are compatible with the limiting strip (12). The other end of the bolt (14) passes through the limiting strip (12) and is threadedly connected to the protective outer box (1). A mounting hole (20) is provided at one end of the mounting plate (13).

7. The inverter protection device for elevator door machine according to claim 1, characterized in that: The metal heat sink (3) and the heat dissipation frame (5) are both arranged inside the airflow cavity (7), and the other end of the metal heat sink (3) extends to the outside of the protective outer box (1).

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