Soundproof car structure

Abstract

The utility model provides a sound insulation type car structure has solved the existing high -speed elevator car inside noise is too big, and the technical problem of poor comfortableness of riding. Technical scheme is: car roof deck sets up the sound insulation cotton layer, and the fan cover of the ventilation fan outside car roof sets up the labyrinth type flow guide channel; The periphery of car roof sets up the flow cover board; The outer side of car wall board's car wall base plate sets up the paper honeycomb board, and the car bottom sets up the labyrinth type ventilation channel, and the labyrinth type ventilation channel sets up the air inlet in the car bottom, and sets up the side ventilation opening that intercommunicates in the car in the lower part of car wall board. Economical, effective weaken the noise in the car, promote the comfortableness of riding, satisfy the noise standard among the relevant technical specification simultaneously, reduce high -speed elevator product cost, improve market competitiveness.

Description

Technical Field

[0001] This utility model relates to the field of elevator equipment technology, and in particular to a soundproof car structure for reducing noise inside the car of a high-speed elevator in a high-rise building. Background Technology

[0002] With the acceleration of urbanization, the number of high-rise buildings is increasing and the building height is continuously rising, leading to a significant increase in elevator usage frequency and a growing market demand for higher elevator operating speeds. However, the increased elevator speed has exacerbated the problem of noise within the elevator car, as the traditional car manufacturing methods and structural designs for low-speed elevators are no longer sufficient to meet the requirements of high-speed elevators. On the other hand, as people's living standards continue to improve, users are placing higher demands on elevator comfort, and a quiet riding environment has become one of the important indicators for evaluating elevator quality. Furthermore, the Special Equipment Safety Technical Specification "TSG T7001—2023 Rules for Elevator Supervision and Periodic Inspection" issued by the State Administration for Market Regulation clearly stipulates that when the rated speed v ≤ 2.5 m / s, the noise level inside the elevator car must be ≤ 55 dB. As the market demands for elevator operating speeds increase, the wind noise generated during elevator operation is constantly amplified. Existing ordinary car structures, lacking targeted sound insulation and noise reduction structures, are unable to effectively isolate external noise sources and internal ventilation noise, failing to meet the noise requirements in the aforementioned technical specifications. This not only severely impacts user comfort but also leaves users with the impression of poor elevator performance and quality, reducing the product's market competitiveness. Utility Model Content

[0003] The purpose of this invention is to provide a soundproof car structure that solves the technical problems of excessive noise and poor ride comfort in existing high-speed elevator cars.

[0004] The technical solution adopted by this utility model is as follows: a soundproof car structure, the car includes a car top plate, car wall panels and a car bottom, the car top is equipped with a ventilation fan, the key technical points are: the car top plate is provided with a car top base plate and a sound insulation cotton layer, and a cover plate is provided on the outside of the sound insulation cotton layer; a fan cover is provided on the outside of the ventilation fan on the car top, the air inlet of the fan cover is connected to the air inlet on the car top through a labyrinth-type guide channel, and a sloping guide plate is provided on the air inlet on the car top; guide hood plates are provided on the four edges of the car top; a paper honeycomb board is provided on the outside of the car wall base plate of the car wall panel, and a cover plate is provided on the outside of the paper honeycomb board; a labyrinth-type ventilation channel is provided on the car bottom, the labyrinth-type ventilation channel is provided with an air inlet on the car bottom, and a side ventilation opening connected to the inside of the car is provided on the lower part of the car wall panel.

[0005] The labyrinthine ventilation duct is a guide channel formed by connecting the lower ventilation chamber located at the lower edge of the car floor and the upper ventilation chamber located at the kick plate position of the car wall panel. The lower and upper ventilation chambers are provided with multiple staggered partitions forming tortuous ventilation cavities. The air inlet is located on the inner side of the lower ventilation chamber, and the side ventilation outlet is located on the inner side of the upper ventilation chamber. Both the air inlet and the inner side ventilation outlet are equipped with mesh covers.

[0006] The advantages and beneficial effects of this utility model are as follows: 1. Significant sound insulation and noise reduction effect: By setting paper honeycomb board layers, sound insulation cotton layers, and cover plates on the car wall panels and car top panels respectively, the sound insulation performance of the car body is effectively enhanced. The paper honeycomb board layer also plays a role in buffering and shock absorption. The fan cover is equipped with a labyrinth-style airflow channel and a sloping airflow guide plate, which can greatly reduce the wind noise at the ventilation fan inlet on the car top. The airflow guide plates set around the four edges of the car top are used to specifically reduce the wind noise generated by high-speed operation. The labyrinth-style ventilation channel structure at the bottom of the car greatly reduces the airflow noise at the ventilation opening at the bottom of the car. Through the multi-dimensional synergy of the above sound insulation structures, external noise sources are isolated, and the goal of maximizing the reduction of noise in the car is achieved, ensuring that the car noise is met in accordance with the "TSG T7001—2023 Elevator Supervision and Periodic Inspection Rules".

[0007] 2. Improved ride comfort: Effective reduction of noise inside the elevator car provides users with a quiet and comfortable riding environment, improves the user experience, and avoids leaving users with the impression of poor elevator performance and quality due to noise issues.

[0008] 3. Simple structure, good economy, and strong practicality: This utility model achieves sound insulation and noise reduction functions by adding sound insulation components and optimizing the airflow and ventilation structure on the basis of the existing car structure. It does not require major modifications to the overall structure of the car, making it simple in structure and easy to process and assemble. The paper honeycomb panels, sound insulation cotton, and economical airflow guides used have low costs, effectively reducing the production cost of high-speed elevator products. It has a wide range of applications, high cost performance and promotional value, and improves the market competitiveness of the product. Attached Figure Description

[0009] The present invention will be further described below with reference to the accompanying drawings.

[0010] Figure 1 This is a schematic diagram of the overall external structure of the car of this utility model; Figure 2 This is a schematic diagram of the structure of the car wall panel of this utility model; Figure 3 This is a schematic diagram of the structure of the car roof panel of this utility model; Figure 4 This is a schematic diagram of the ventilation structure of the car roof ventilation fan of this utility model; Figure 5 This is a schematic diagram of the ventilation structure of the labyrinth-style ventilation duct set under the car body according to this utility model.

[0011] The numbers in the diagram are explained as follows: 1. Car top plate, 11. Car top base plate, 12. Sound insulation cotton layer, 13. Reinforcing rib, 2. Car wall panel, 21. Car wall base plate, 22. Paper honeycomb panel, 23. End cap, 3. Car bottom, 31. Car bottom plate, 4. Deflector plate, 5. Fan cover, 51. Fan cover air inlet, 52. Car top air inlet, 53. Deflector plate, 6. Labyrinth ventilation duct, 61. Lower ventilation chamber, 62. Upper ventilation chamber, 63. Partition, 7. Cover plate, 8. Ventilation fan, 9. Kickboard, 10. Mesh cover. Detailed Implementation

[0012] according to Figures 1 to 5 The technical solution of this utility model will be described in detail, and its implementation will be illustrated by examples. Figure 1 As shown, a soundproof car structure is provided, the car includes a car top plate 1, a car wall panel 2 and a car floor 3.

[0013] like Figure 2 As shown, the car roof panel 1 has a sound insulation layer 12 installed on the outside of the original car roof base plate 11. A cover plate 7 is installed on the outside of the sound insulation layer 12. Reinforcing ribs 13 can be installed between the car roof base plate and the cover plate to form a soundproof car roof. The sound insulation layer 12 can be made of 30mm thick centrifugal glass wool. The car roof base plate 11 and the cover plate 7 can be made of stainless steel plates. The car roof base plate and the cover plate are connected by bolts, and the sound insulation layer is fixed between the two by adhesive to prevent the sound insulation cotton from shifting during elevator operation and affecting the sound insulation effect. Figure 4 As shown, a ventilation fan 8 is installed on the car top, and a fan cover 5 is installed on the outside of the ventilation fan. The air inlet 51 of the fan cover is connected to the air inlet 52 on the car top through a labyrinth-type airflow guide channel. The air inlet 52 on the car top is equipped with a sloping guide plate 53. The fan cover 5 can be made of ABS engineering plastic, and its interior is designed with a tortuous airflow channel with a turning angle of 90°, forming a labyrinth-type airflow guide channel. The tortuous channel extends the airflow path and reduces the airflow velocity, thereby reducing the airflow noise generated during ventilation. A guide plate 4, made of ABS engineering plastic, is installed around the four edges of the car top and is fixed to the outside of the car top with bolts. The guide plate has a streamlined shape, and its size is adapted to the size of the car top. The streamlined structure can effectively reduce air resistance when the elevator is running at high speed, thereby reducing wind noise.

[0014] like Figure 3As shown, a paper honeycomb panel 22 is provided on the outer side of the car wall base plate 21 of the car wall panel 2, and a cover plate 7 is provided on the outside of the paper honeycomb panel to form a soundproof car wall. The paper honeycomb panel 22 is fixed between the car wall base plate 21 and the cover plate 7 by adhesive. The thickness of the paper honeycomb panel is 20mm. The car wall base plate and the cover plate are made of stainless steel plates. The edges of the car wall base plate, paper honeycomb panel and cover plate are fastened by folding and bolts. End caps are provided at the top and bottom to ensure a firm connection and enhance the structural strength and sound insulation effect of the car wall.

[0015] like Figure 5 As shown, a labyrinthine ventilation duct 6 is provided on the outer side of the car floor plate 31 of the car bottom 3. The labyrinthine ventilation duct 6 has an air inlet at the bottom of the car and a side ventilation opening connecting to the inside of the car at the lower part of the car wall panel 2. Specifically, the labyrinthine ventilation duct can be formed by welding a lower ventilation chamber 61 to the lower edge of the car floor plate 31 via a car bottom frame and steel plates, and an upper ventilation chamber 62 formed by enclosing a steel plate at the kick plate 9 position of the car wall panel 2. The lower ventilation chamber 61 and the upper ventilation chamber 62 are connected to form an air guide channel. Multiple staggered partitions 63 form tortuous ventilation cavities within the lower and upper ventilation chambers 61 and 62. The air inlet is located on the inner side of the lower ventilation chamber, and the side ventilation opening is located on the inner side of the upper ventilation chamber. Both the air inlet and the inner ventilation opening are equipped with a mesh cover 10 with ventilation holes. Air enters the car interior through the tortuous channels of the labyrinthine ventilation duct, further reducing airflow noise.

[0016] Working principle The soundproof car structure of this utility model achieves sound insulation and noise reduction functions through the coordinated action of its various components during operation. The specific working principle is as follows: 1. External noise isolation: When the elevator is running at high speed, the wind noise generated outside the car first acts on the guide plate 3. The streamlined guide plate structure can reduce air resistance and weaken the generation of wind noise. At the same time, the paper honeycomb panel 22 and cover plate 7 of the soundproof car wall, and the sound insulation cotton layer 12 and cover plate 7 of the soundproof car top form a multi-layer sound insulation barrier, which can effectively isolate external wind noise and other environmental noise from entering the car.

[0017] 2. Reduced internal ventilation noise: When the car ventilation system is working, after the air enters the ventilation fan from the outside, it first enters the tortuous airflow channel of the labyrinth soundproof fan cover 5. The airflow turns multiple times in the tortuous channel, and the flow velocity decreases, which initially reduces airflow noise. The airflow enters the labyrinth ventilation cavity at the bottom of the car, which is constructed by the labyrinth ventilation duct 6. It further diffuses and slows down in the ventilation cavity. It also enters the car slowly and evenly through the mesh cover 10 with ventilation holes in the air inlet and the inner ventilation port, avoiding the strong airflow noise generated by the air directly entering the car.

[0018] Through the synergistic effect of external noise isolation and internal ventilation noise reduction, the soundproof car structure of this utility model can maximize the reduction of noise in the car, ensuring that the noise level in the car meets the requirements of "TSG T7001—2023 Elevator Supervision and Periodic Inspection Rules", providing users with a quiet and comfortable riding environment.

[0019] In summary, the purpose of this utility model has been achieved.

Claims

1. A soundproof car structure, the car comprising a car roof, car wall panels and a car floor, wherein a ventilation fan is provided on the car roof, characterized in that: The car roof is provided with a car roof base plate and a sound insulation cotton layer, and a cover plate is provided on the outside of the sound insulation cotton layer; a fan cover is provided on the outside of the ventilation fan on the car roof, and the air inlet of the fan cover is connected to the air inlet on the car roof through a labyrinth-type air guide channel. A sloping air guide plate is provided on the air inlet on the car roof; air guide plates are provided on the four edges of the car roof; a paper honeycomb board is provided on the outside of the car wall base plate of the car wall panel, and a cover plate is provided on the outside of the paper honeycomb board; a labyrinth-type ventilation channel is provided at the bottom of the car, with an air inlet at the bottom of the labyrinth-type ventilation channel and a side ventilation opening connected to the inside of the car at the lower part of the car wall panel.

2. The soundproof car structure according to claim 1, characterized in that: The labyrinthine ventilation duct is a guide channel formed by connecting the lower ventilation chamber located at the lower edge of the car floor and the upper ventilation chamber located at the kick plate position of the car wall panel. The lower and upper ventilation chambers are provided with multiple staggered partitions forming tortuous ventilation cavities. The air inlet is located on the inner side of the lower ventilation chamber, and the side ventilation outlet is located on the inner side of the upper ventilation chamber. Both the air inlet and the inner side ventilation outlet are equipped with mesh covers.

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