An elevator door machine frequency converter integrated support frame

Abstract

The utility model discloses a kind of elevator door machine frequency converter integration support frame, to solve the problems of wiring complex, poor heat dissipation, poor damping and inconvenient installation and maintenance in prior art. The support frame includes a main support plate for receiving elevator door machine and a frequency converter mounting assembly for mounting elevator frequency converter. The core is that: one end of frequency converter mounting assembly is pivoted to main support plate through rotating shaft mechanism, and the other end is detachably locked through quick lock mechanism. Shock-absorbing damping members are provided between the two, which are spaced apart to form a heat dissipation gap for air convection. It realizes the high integration of door machine and frequency converter, and the "rotating shaft + quick lock" structure greatly facilitates the wiring and maintenance of frequency converter. The shock-absorbing damping members and air gap effectively isolate the vibration and enhance the heat dissipation effect, improving the reliability and service life of the system. The utility model has a clever structure and strong versatility, significantly improving the installation and maintenance efficiency and operational stability of the elevator system.

Description

Technical Field

[0001] This utility model relates to the technical field of elevator components, and in particular to an integrated support frame for an elevator door operator frequency converter. Background Technology

[0002] In modern elevator systems, the elevator door operator is responsible for driving the opening and closing of the car doors, and its power source is usually a motor. In order to achieve smooth start and stop, speed regulation and safety protection of the door operator motor, a dedicated frequency converter is usually equipped for control.

[0003] Currently, there are several main installation methods for elevator door operators and frequency converters:

[0004] Split-type installation: The gantry motor is fixed to a dedicated bracket on the car sill or car roof, while the frequency converter is installed in the control box on the car roof or fixed in another location on the car roof. The disadvantages of this method are: the power lines and control signal cables between the gantry motor and the frequency converter need to be laid over long distances, increasing cable costs and wiring difficulty, easily introducing electromagnetic interference, and occupying the limited installation space on the car roof, causing inconvenience for installation and subsequent maintenance.

[0005] Simple integrated installation: Some designs directly bolt the inverter to the side or surface of the gantry crane bracket. While this method reduces wiring distance to some extent, it introduces new problems:

[0006] 1. Poor heat dissipation: The frequency converter generates a lot of heat when it is working. When it is directly attached to the large metal plate of the gantry crane bracket, it hinders air convection, causing heat to accumulate and affecting the working stability and service life of the frequency converter.

[0007] 2. Vibration impact: The gantry motor will generate mechanical vibration during operation. This vibration will be directly transmitted to the frequency converter containing precision electronic components through the rigidly connected bracket. Long-term vibration may cause the solder joints of electronic components to loosen or be damaged, reducing the reliability of the system.

[0008] 3. Difficult installation and maintenance: In this compact fixing method, the inverter's wiring terminals are often blocked. When installing, wiring, or repairing and replacing, the operating space is small and extremely inconvenient. Sometimes it is even necessary to disassemble other components first.

[0009] Therefore, designing a cleverly structured support frame that can achieve a high degree of integration between the gantry crane and the frequency converter, while simultaneously solving the problems of heat dissipation, vibration reduction, and ease of installation and maintenance, is a technical challenge that urgently needs to be addressed in this field. Utility Model Content

[0010] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0011] In view of the above-mentioned existing problems, this utility model is proposed to solve the technical problems of poor heat dissipation, poor shock absorption effect, and inconvenient installation and maintenance caused by the separate installation or simple integration of elevator door operator and frequency converter in the prior art.

[0012] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an integrated support frame for an elevator door operator frequency converter, comprising a main support plate for supporting the elevator door operator and a frequency converter mounting assembly for mounting the elevator frequency converter. One end of the frequency converter mounting assembly is pivotally connected to one side of the main support plate via a rotating shaft mechanism, and the other end is detachably locked to the main support plate via a quick-locking mechanism. At least one shock-absorbing damping component is provided between the frequency converter mounting assembly and the main support plate, which separates the frequency converter mounting assembly from the main support plate to form an air gap. A set of ventilation and heat dissipation holes are provided on the frequency converter mounting assembly.

[0013] As a preferred embodiment of the integrated support frame for the elevator door operator frequency converter described in this utility model, the main support plate is a U-shaped metal plate integrally stamped and bent, which is provided with fixing holes for fixing to the elevator car structure.

[0014] As a preferred embodiment of the integrated support frame for elevator door operator frequency converter described in this utility model, the frequency converter mounting assembly is provided with universal elongated holes for installing different models of elevator frequency converters.

[0015] As a preferred embodiment of the integrated support frame for the elevator door operator frequency converter described in this utility model, the quick-lock mechanism includes a fixed lock frame disposed on the main support plate and a handrail disposed on the frequency converter mounting assembly. A pull rod is pivotally connected to the handrail, and one end of the pull rod can be fastened to the fixed lock frame to achieve locking.

[0016] As a preferred embodiment of the integrated support frame for the elevator door operator frequency converter described in this utility model, the bottom of the handrail is provided with a self-locking mechanism, including an elastic self-locking plate and a self-locking hook that cooperates with it to achieve self-locking.

[0017] As a preferred embodiment of the integrated support frame for the elevator door operator frequency converter described in this utility model, the rotating shaft mechanism is a pin-shaft hole mating structure or an integrated hinge structure.

[0018] As a preferred embodiment of the integrated support frame for the elevator door operator frequency converter described in this utility model, the shock-absorbing damping component is a rubber pad, a silicone pad, or a spring washer.

[0019] As a preferred embodiment of the integrated support frame for the elevator door operator frequency converter described in this utility model, the width of the air gap is 5mm to 30mm to ensure sufficient air convection heat dissipation and effective vibration isolation.

[0020] As a preferred embodiment of the integrated support frame for the elevator door operator frequency converter described in this utility model, one end of the main support plate is detachably connected to an external plate, and the external plate and the main support plate are fixed in an adjustable manner through the cooperation of a set of screws and nuts.

[0021] This utility model provides an integrated support frame for elevator door operator frequency converters, which has the following advantages:

[0022] The unique "swivel shaft + quick lock" design allows the inverter mounting assembly to be opened like a door. During maintenance, simply release the quick lock mechanism to rotate the inverter along with its mounting assembly outwards, fully exposing its wiring terminals and back side. This provides ample operating space, making wiring, inspection, and replacement extremely convenient without disassembling the entire device.

[0023] By using the damping components to create a space between the inverter and the main support plate, an air gap is artificially created, forming a vertical heat dissipation duct. This utilizes the natural convection principle of rising hot air, greatly enhancing the inverter's heat dissipation effect and ensuring stable operation even in hot environments.

[0024] The installation of shock-absorbing and damping components (such as rubber gaskets) effectively isolates the vibration generated by the gantry motor during operation from being transmitted to the frequency converter, protects the precision electronic components inside the frequency converter, significantly extends its service life, and improves the reliability of the entire gantry system.

[0025] The universal elongated holes designed on the inverter mounting assembly are compatible with various brands and sizes of inverters on the market, improving the versatility of the support frame, facilitating standardized production, and reducing manufacturing costs and inventory types. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0028] Figure 2 This is a schematic diagram of the exploded structure of this utility model.

[0029] Figure 3 A schematic diagram of the overall structure of the quick-lock mechanism 4 provided by this utility model. Detailed Implementation

[0030] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0033] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0034] The purpose of this utility model is to provide an integrated support frame for elevator door operator frequency converters, so as to overcome the defects of existing technologies such as complex wiring, poor heat dissipation, poor shock absorption and inconvenient installation and maintenance.

[0035] Therefore, refer to Figure 1 and Figure 2This utility model provides an integrated support frame for an elevator door operator frequency converter, including a main support plate 1 for supporting the elevator door operator and a frequency converter mounting assembly 2 for mounting the elevator frequency converter. One end of the frequency converter mounting assembly 2 is pivotally connected to one side of the main support plate 1 through a rotating shaft mechanism 3, and the other end is detachably locked to the main support plate 1 through a quick-locking mechanism 4. At least one shock-absorbing damping component 5 is provided between the frequency converter mounting assembly 2 and the main support plate 1. The shock-absorbing damping component 5 separates the frequency converter mounting assembly 2 from the main support plate 1 to form an air gap, and a set of ventilation and heat dissipation holes 21 are provided on the frequency converter mounting assembly 2.

[0036] Specifically, the main support plate 1 is a U-shaped metal plate formed by stamping and bending, with fixing holes 11 on it for fixing to the elevator car structure. Preferably, it is formed in one piece by stamping and bending a metal plate (such as galvanized steel or stainless steel), possessing sufficient mechanical strength and rigidity. The inverter mounting assembly 2 can also be formed by stamping and bending a metal plate.

[0037] Specifically, the inverter mounting assembly 2 is equipped with universal elongated holes 22 for installing different models of elevator inverters. The design of these elongated holes can flexibly adapt to the mounting hole spacing of elevator inverters of different brands and sizes, achieving a high degree of versatility.

[0038] Furthermore, the quick-lock mechanism 4 includes a fixed lock frame 41 mounted on the main support plate 1 and a handrail 42 mounted on the inverter mounting assembly 2. A pull rod 43 is pivotally connected to the handrail 42, and one end of the pull rod 43 can be fastened to the fixed lock frame 41 to achieve locking.

[0039] Furthermore, refer to Figure 3 The bottom of the handrail 42 is provided with a self-locking mechanism 42a, including an elastic self-locking plate 42a-1 and a self-locking hook 42a-2 that cooperates with it to achieve self-locking. The self-locking hook 42a-2 can be detachably fixed to the handrail 42, which can be achieved by adhesive bonding or screws.

[0040] The rotating shaft mechanism 3 is a pin-hole mating structure or an integrated hinge structure, such as a simple pin.

[0041] Furthermore, the vibration damping component 5 is a rubber pad, silicone pad, or spring washer, and the width of the air gap is 5mm to 30mm to ensure sufficient air convection heat dissipation and effective vibration isolation. These vibration damping components 5 not only play a crucial role in vibration reduction, isolating vibrations transmitted from the main support plate 1, but also utilize their thickness to separate the entire inverter mounting assembly 2 from the main support plate 1 by a predetermined distance, thus forming a vertically penetrating air gap D between the back of the inverter and the main support plate 1. The width of this air gap D is preferably 5mm to 30mm, forming a highly efficient "chimney effect" heat dissipation channel, greatly promoting natural air convection and rapidly carrying away the heat generated during inverter operation. Simultaneously, wiring can be carried out within the air gap D, ensuring that the overall wiring harness is not exposed.

[0042] Furthermore, one end of the main support plate 1 is detachably connected to an external plate 13. The external plate 13 and the main support plate 1 are fixed in an adjustable manner through the engagement of a set of screws and nuts. In order to effectively adapt to gantry cranes of different lengths, a further design considers that the external plate 13 is detachably connected to one end of the main support plate 1. When it is necessary to adapt to gantry cranes of different lengths, the screws and nuts are removed, the external plate 13 is pulled to the corresponding position, and then the screws and nuts are installed to fix it.

[0043] During installation: First, determine the length of the door operator and adjust the position of the external plate 13 accordingly to ensure the overall length matches the current door operator. The installer secures the main support plate 1 to the elevator car structure through the fixing holes 11. First, open the handrail 42, loosen the pull rod 43 backward, and remove it from the fixing lock bracket 41. Rotate the inverter mounting assembly 2 to the appropriate position and install the inverter onto the inverter mounting assembly 2 through the universal elongated hole 22. After returning to its original position, it is secured by the quick-locking mechanism 4. Simultaneously, pressing down the handrail 42 causes the self-locking hook 42a-2 to slide across the elastic self-locking plate 42a-1, achieving self-locking.

[0044] During maintenance: When it is necessary to inspect or replace the frequency converter, the maintenance personnel can also remove the self-locking hook 42a-2, pull open the quick-lock mechanism 4, and turn the frequency converter mounting assembly 2 open, so that the operation can be carried out in a spacious space without disassembling the gantry machine or the entire bracket, which greatly improves the convenience of maintenance.

[0045] In summary, this utility model cleverly integrates the frequency converter onto the gantry crane bracket through a combination design of "rotating shaft + quick lock + shock absorption and damping". It solves the four core problems of integration, ease of installation and maintenance, heat dissipation performance and shock absorption protection in one integrated manner. Its structure is simple and reliable, low cost and significant effect, and has extremely high industrial practical value.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An integrated support frame for an elevator door operator frequency converter, characterized in that: The system includes a main support plate (1) for receiving the elevator door operator and a frequency converter mounting assembly (2) for installing the elevator frequency converter. One end of the frequency converter mounting assembly (2) is pivotally connected to one side of the main support plate (1) via a rotating shaft mechanism (3), and the other end is detachably locked to the main support plate (1) via a quick-locking mechanism (4). At least one shock-absorbing damping component (5) is provided between the frequency converter mounting assembly (2) and the main support plate (1). The shock-absorbing damping component (5) separates the frequency converter mounting assembly (2) from the main support plate (1) to form an air gap. A set of ventilation and heat dissipation holes (21) are provided on the frequency converter mounting assembly (2).

2. The integrated support frame for the elevator door operator frequency converter as described in claim 1, characterized in that: The main support plate (1) is a U-shaped metal plate formed by integral stamping and bending, and has fixing holes (11) on it for fixing to the elevator car structure.

3. The integrated support frame for the elevator door operator frequency converter as described in claim 2, characterized in that: The inverter mounting assembly (2) is provided with a universal elongated hole (22) for installing different models of elevator inverters.

4. The integrated support frame for the elevator door operator frequency converter as described in claim 3, characterized in that: The quick-lock mechanism (4) includes a fixed lock frame (41) disposed on the main support plate (1) and a handrail (42) disposed on the inverter mounting assembly (2). A pull rod (43) is pivotally connected to the handrail (42), and one end of the pull rod (43) can be fastened to the fixed lock frame (41) to achieve locking.

5. The integrated support frame for the elevator door operator frequency converter as described in claim 4, characterized in that: The bottom of the handrail (42) is provided with a self-locking mechanism (42a), including an elastic self-locking plate (42a-1) and a self-locking hook (42a-2) that works with it to achieve self-locking.

6. The integrated support frame for the elevator door operator frequency converter as described in claim 5, characterized in that: The rotating shaft mechanism (3) is a pin-shaft hole fit structure or an integral hinge structure.

7. The integrated support frame for the elevator door operator frequency converter as described in claim 6, characterized in that: The shock-absorbing damping component (5) is a rubber pad, a silicone pad, or a spring pad.

8. The integrated support frame for the elevator door operator frequency converter as described in claim 7, characterized in that: The width of the air gap is 5mm to 30mm to ensure sufficient air convection for heat dissipation and effective vibration isolation.

9. The integrated support frame for the elevator door operator frequency converter as described in claim 8, characterized in that: One end of the main support plate (1) is detachably connected to an external plate (13), and the external plate (13) and the main support plate (1) are fixed in an adjustable length by a set of screws and nuts.

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