An elevator load control device

Abstract

The utility model relates to elevator safety accessory technical field discloses a kind of elevator load control instrument, including control instrument main body, installation component and dustproof heat dissipation component, dustproof heat dissipation component cover is equipped in control instrument main body, it is equipped with fan installed in the upper portion of main body, ash collecting box located below fan, first dust screen being equipped in air inlet side and second dust screen for protecting fan, first dust screen is installed by slide rail and can be pulled, and installation component includes annular cup type sensor for sensing pressure.The utility model forms airflow from top to bottom by fan, can both heat dissipation for control instrument main body, and dust is blown into ash collecting box actively, solve the problem that the existing control instrument is not stable in operation due to internal dust and poor heat dissipation, in the utility model, sensor sheath and annular cup type sensor are combined and installed, solve the problem that existing sensor is installed in horizontal rope head rod and produces additional pressure on elastomer, affect sensor performance.

Description

Technical Field

[0001] This utility model relates to the field of elevator safety accessories technology, and in particular to an elevator load controller. Background Technology

[0002] The elevator load controller is a key component for ensuring the safe operation of elevators. It provides accurate data to the elevator control system by monitoring the load weight inside the elevator car in real time, so as to realize functions such as overload warning, door closure prohibition and start compensation, thereby effectively preventing safety accidents caused by overload.

[0003] As a sophisticated electronic measurement and control device, the elevator load controller integrates sensor signal processing circuits, a microprocessor, and other electronic components. The long-term stable operation of these components requires high standards for the temperature and cleanliness of their operating environment.

[0004] However, in practical applications, elevator load controllers are typically installed in elevator machine rooms or shafts. These environments are often relatively enclosed, with poor air circulation, and are prone to accumulating dust caused by wear and tear on mechanical parts and structural debris. The controller itself generates continuous heat during prolonged operation, and in poorly ventilated conditions, this heat is difficult to dissipate effectively, causing its internal temperature to rise continuously.

[0005] Sustained high temperatures can severely impact the performance of electronic components, potentially causing signal drift, inaccurate data, and even accelerating component aging, thus shortening the overall lifespan of the device. Simultaneously, airborne dust can penetrate the device's interior through gaps in the casing, accumulating on the circuit boards. This not only hinders heat dissipation but can also lead to short circuits due to moisture, posing a serious threat to the device's reliability. While some existing controllers have simple ventilation holes or casings, they lack an integrated structure that proactively and effectively addresses both heat dissipation and dust prevention, resulting in insufficient long-term operational stability under harsh conditions.

[0006] The cup-type sensor is installed on the rope end assembly. The rope end rod in the rope end assembly is generally installed vertically, but in some trapezoidal structures, the rope end rod is installed horizontally. When the existing cup-type sensor is installed in a trapezoidal structure with a horizontal rope end rod, it will be subjected to additional pressure from the rope end rod on the elastic body, resulting in a deterioration in sensor performance.

[0007] Therefore, this utility model proposes an elevator load controller to overcome the shortcomings of the prior art. Utility Model Content

[0008] To overcome the above shortcomings, this utility model provides an elevator load controller, aiming to improve the existing technology where, during long-term operation in dusty and poorly ventilated machine room environments, internal dust accumulation leads to circuit instability, and poor heat dissipation causes component overheating, thus affecting operational reliability. It also solves the problem of sensor performance degradation when installed in a horizontally mounted ladder-type configuration on the rope head pole.

[0009] To achieve the above objectives, the present invention adopts the following technical solution: An elevator load controller includes a controller body, a mounting assembly electrically connected to the controller body, and a dustproof and heat dissipation assembly covering the controller body; the mounting assembly is connected to the controller body via a connecting cable for transmitting electrical signals; the dustproof and heat dissipation assembly includes: A fan, which is installed above the main body of the controller, is used to form a top-down airflow duct; A dust collection box, located below the fan, is used to collect dust blown down by the airflow duct; The first dustproof net is located on the air inlet side of the dustproof heat dissipation assembly and is used to block external dust.

[0010] Preferably, the mounting components include: Rope end plate; A ring-shaped cup sensor is fixedly connected to the rope head plate and is used to sense pressure and transmit the pressure signal to the main body of the controller.

[0011] Preferably, the annular cup sensor is assembled using multiple rivets; the annular cup sensor is fixed to the rope head plate by a rope head rod and a nut.

[0012] Preferably, the mounting assembly further includes a sensor sleeve that is fitted over the annular cup sensor.

[0013] Preferably, the dustproof and heat dissipation assembly further includes a second dustproof mesh, which is disposed between the fan and the first dustproof mesh.

[0014] Preferably, the dustproof and heat dissipation assembly further includes a slide rail, and the first dustproof mesh is slidably connected to the dustproof and heat dissipation assembly via the slide rail.

[0015] Preferably, the dustproof and heat dissipation assembly further includes bolts, and the first dustproof mesh is detachably fixed to the dustproof and heat dissipation assembly by the bolts.

[0016] Preferably, the housing of the controller body is provided with a heat dissipation vent, and the airflow duct formed by the fan dissipates the heat generated by the controller body through the heat dissipation vent.

[0017] This utility model has the following beneficial effects: 1. In this utility model, by combining the sensor sheath with the annular cup sensor, the problem of the existing sensor being installed on a horizontal rope head rod and generating additional pressure on the elastic body, thus affecting the sensor performance, is solved.

[0018] 2. In this utility model, by setting up a dustproof and heat dissipation component that integrates a fan, a dust collection box and a first dustproof net, the fan forms a top-down airflow channel, which solves the problem that the existing elevator load controller is prone to performance instability due to internal dust accumulation and overheating of components when operating for a long time in dusty and poorly heated environments. It achieves the synergistic effect of active heat dissipation and multiple dustproofs, and significantly improves the reliability and service life of the equipment in harsh environments.

[0019] 3. In this utility model, by setting the first dustproof net on the slide rail and fixing it detachably with bolts, the problem of difficulty in cleaning or replacing the dustproof net of the existing equipment and the inconvenience of maintenance are solved. This achieves the technical effect of simplifying the maintenance process, improving maintenance efficiency, and reducing the long-term use cost of the equipment. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of an elevator load controller proposed in this utility model; Figure 2 This is a schematic diagram of the installation assembly of an elevator load controller proposed in this utility model; Figure 3 This is a schematic diagram of the structure of a dustproof and heat dissipation component for an elevator load controller proposed in this utility model; Figure 4 This is a schematic diagram of the fan structure of an elevator load controller proposed in this utility model.

[0021] Legend: 1. Controller body; 2. Aviation connector; 3. Connecting cable; 4. Mounting components; 401. Rope end plate; 402. Ring cup sensor; 403. Rope end rod; 404. Sensor sleeve; 405. Nut; 406. Rivet; 5. Dustproof and heat dissipation components; 501. Slide rail; 502. Dust collection box; 503. First dustproof net; 504. Second dustproof net; 505. Fan; 506. Bolt; 6. Heat dissipation vent. Detailed Implementation

[0022] 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.

[0023] Please refer to Figure 1 -Appendix Figure 4 This utility model provides an elevator load controller, which aims to solve the problems of unstable operation, shortened lifespan, and low sensor accuracy of existing elevator load controllers in dusty environments due to dust accumulation and poor heat dissipation.

[0024] The elevator load controller includes a controller body 1, a mounting assembly 4, and a dustproof and heat dissipation assembly 5. The mounting assembly 4 is electrically connected to the controller body 1 and is used to sense changes in elevator load and generate electrical signals. The controller body 1 processes the electrical signals transmitted by the mounting assembly 4 to achieve load monitoring and control. The dustproof and heat dissipation assembly 5 covers the controller body 1, providing a stable and clean operating environment for the controller body 1. Specifically, the dustproof and heat dissipation assembly 5 includes a fan 505, a dust collection box 502, and a first dustproof screen 503. The fan 505 is installed above the controller body 1, and when it operates, it forms a top-down airflow channel. This airflow channel forcibly removes the heat generated by the controller body 1 during operation and actively blows external dust downwards. The dust collection box 502 is located below the fan 505 and is used to collect and collect the dust blown down by the airflow duct, preventing the dust from being dispersed again inside the device. The first dustproof net 503 is located on the air inlet side of the dustproof heat dissipation component 5 and acts as a physical barrier to prevent larger dust particles from entering the device, forming the first layer of dustproof protection. In order to achieve comprehensive protection and convenient maintenance of the device, a second dustproof net 504 is also provided between the fan 505 and the first dustproof net 503. The first dustproof net 503 is slidably connected to the dustproof heat dissipation component 5 via the slide rail 501 and is fixed by bolts 506. The housing of the controller body 1 is provided with a heat dissipation port 6. The airflow duct formed by the fan 505 discharges the internal heat through the heat dissipation port 6, forming an efficient heat dissipation circuit.

[0025] In this embodiment, the internal structure of the mounting component 4 is specifically designed to accurately acquire elevator load signals. The connection relationship and working method of this core sensing structure are described in detail below: Mounting assembly 4 includes a rope end plate 401, an annular cup sensor 402, a rope end rod 403, a sensor sleeve 404, a nut 405, and four rivets 406. The annular cup sensor 402, as the core sensing element, is fixedly connected to the rope end plate 401. Specifically, the annular cup sensor 402 is securely fastened to the predetermined position on the rope end plate 401 through the threaded engagement of the rope end rod 403 and the nut 405. This stable connection ensures that the pressure on the elevator's load-bearing structure can be transmitted to the annular cup sensor 402 without damage and with precision. To protect the annular cup sensor... The sensor 402 is protected from physical impact or contamination by the external environment and is also provided with a sensor sleeve 404. In order to accommodate the trapezoidal shape of the rope end rod for horizontal installation, a sensor sleeve 404 is also provided. The sensor sleeve 404 is fitted on the outside of the annular cup sensor 402 to prevent the rope end rod 403 from contacting the inner wall of the annular cup sensor 402 and generating additional pressure. The entire mounting assembly 4 is electrically connected to the controller body 1 through the connecting wire 3 and the aviation plug 2, so as to stably transmit the electrical signal converted by the annular cup sensor 402 after sensing the pressure change to the controller body 1 for subsequent processing.

[0026] Based on the above embodiments, the present invention may further include the following preferred technical solutions: To further enhance the dustproof performance of the device and protect the core power components, the dustproof heat dissipation assembly 5 also includes a second dustproof mesh 504. The second dustproof mesh 504 is located between the fan 505 and the first dustproof mesh 503. Its main function is to provide a backup barrier for the fan 505 when the first dustproof mesh 503 is removed for maintenance or accidentally damaged, preventing dust from being directly sucked into the motor of the fan 505 and causing wear or failure, thus forming a dual filtration protection structure.

[0027] To facilitate long-term equipment maintenance, especially simplifying cleaning, the installation structure of the first dustproof net 503 has been specially designed. Specifically, the dustproof heat dissipation assembly 5 is equipped with a slide rail 501, and the frame of the first dustproof net 503 cooperates with the slide rail 501, so that the first dustproof net 503 is installed on the dustproof heat dissipation assembly 5 in a sliding connection manner through the slide rail 501. When cleaning is required, maintenance personnel can easily pull it out. To ensure that the first dustproof net 503 is stable and does not shake when the equipment is running normally, the dustproof heat dissipation assembly 5 also includes a bolt 506. The bolt 506 passes through the housing of the dustproof heat dissipation assembly 5 and is detachably fixed to the frame of the first dustproof net 503, ensuring the reliability of installation and the convenience of disassembly.

[0028] In order to achieve efficient and directional heat dissipation, the housing of the controller body 1 is provided with heat dissipation vents 6. After the fan 505 is installed above the controller body 1 and is started, the airflow duct formed flows from top to bottom through the internal heat-generating elements of the controller body 1. After fully absorbing the heat, the air carrying the heat is finally forced out of the equipment through the heat dissipation vents 6, forming a complete and efficient heat dissipation circulation path.

[0029] Working principle: During elevator operation, the mounting component 4 is assembled and fixed by the rope end plate 401, nut 405, and four rivets 406, and is also installed and fixed on the elevator load-bearing structure. When the load on the elevator changes, the change acts on the ring cup sensor 402. Under the stable fastening of the rope end rod 403 and nut 405, the ring cup sensor 402 accurately senses the pressure and converts it into an electrical signal. At the same time, the sensor sheath 404 protects it. The electrical signal is transmitted to the controller body 1 via the connecting line 3 and aviation plug 2. After receiving the signal, the controller body 1 analyzes and processes it, thereby realizing real-time monitoring and control of the elevator load.

[0030] While the equipment is operating, the dustproof and heat dissipation component 5 starts running, and the fan 505 is activated and installed above the main body 1 of the controller, thus forming a forced airflow channel from top to bottom. This airflow channel flows through the interior of the main body 1 of the controller, absorbing the heat generated by its electronic components, and finally carrying the heat out through the heat dissipation port 6 on the shell, achieving efficient heat dissipation. At the same time, this top-down airflow channel can also actively blow the dust above the equipment downwards and make it fall into the dust collection box 502 below. For the dust on the air inlet side, the first dustproof net 503 acts as the main barrier to block and filter it, while the second dustproof net 504 located inside it is used to protect the fan 505 and prevent any dust that has leaked through the net from entering the motor. Through this combination of active airflow dustproofing and dual physical filtration, the cleanliness of the inside of the equipment is greatly ensured. When cleaning is required, the bolt 506 can be unscrewed, and the first dustproof net 503 can be easily pulled out through the slide rail 501.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. An elevator load controller, comprising a controller body (1), an aviation plug (2), a mounting assembly (4) electrically connected to the controller body (1), and a dustproof and heat dissipation assembly (5) covering the controller body (1). Its features are, The mounting component (4) is connected to the controller body (1) via a connecting line (3) for transmitting electrical signals; The installation component (4) includes: Rope end plate (401); A ring-shaped cup sensor (402) is fixedly connected to the rope head plate (401) and is used to sense pressure and transmit the pressure signal to the controller body (1). The annular cup sensor (402) is assembled by a plurality of rivets (406); the annular cup sensor (402) is fixed to the rope end plate (401) by a rope end rod (403) and a nut (405).

2. The elevator load controller according to claim 1, characterized in that: The dustproof and heat dissipation assembly (5) includes: A fan (505) is installed above the main body (1) of the controller to form a top-down airflow duct; A dust collection box (502), located below the fan (505), is used to collect dust blown down by the airflow duct; The first dustproof net (503) is located on the air inlet side of the dustproof heat dissipation component (5) and is used to block external dust.

3. The elevator load controller according to claim 1, characterized in that: The mounting assembly (4) also includes a sensor sleeve (404) which is fitted over the outside of the annular cup sensor (402).

4. An elevator load controller according to claim 2, characterized in that: The dustproof heat dissipation assembly (5) further includes a second dustproof mesh (504), which is disposed between the fan (505) and the first dustproof mesh (503).

5. An elevator load controller according to claim 2, characterized in that: The dustproof heat dissipation component (5) also includes a slide rail (501), and the first dustproof net (503) is slidably connected to the dustproof heat dissipation component (5) via the slide rail (501).

6. An elevator load controller according to claim 5, characterized in that: The dustproof heat dissipation assembly (5) also includes bolts (506), and the first dustproof mesh (503) is detachably fixed to the dustproof heat dissipation assembly (5) by the bolts (506).

7. An elevator load controller according to claim 4, characterized in that: The controller body (1) has a heat dissipation port (6) on its housing. The airflow channel formed by the fan (505) dissipates the heat generated by the controller body (1) through the heat dissipation port (6).

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