Elevator contactor vibration noise reduction structure and elevator

Abstract

This invention relates to the field of elevator noise reduction technology, specifically disclosing an elevator contactor vibration noise reduction structure and an elevator using this structure. The elevator contactor vibration noise reduction structure includes a cabinet comprising a front panel and a rear panel arranged opposite each other, and paired side panels connected to and enclosing the front and rear panels to form an internal cavity within the cabinet. It also includes a noise reduction chamber disposed within the cavity of the cabinet and connected to the rear panel via a vibration-damping connection structure, and connected to the side panels via a mounting base. A vibration-damping connection structure is provided between the noise reduction chamber and the mounting base. The connection structure between the noise reduction chamber and the elevator control cabinet in this invention effectively prevents resonance between the vibration source and the rear panel of the cabinet, while the side panel connection effectively avoids the cabinet being excited by the vibration source. The combined structure of "contactor-base-limiting cotton" effectively isolates the vibration propagation of the vibration source.

Description

Technical Field

[0001] This invention relates to the field of elevator noise reduction technology, specifically disclosing an elevator contactor vibration noise reduction structure and an elevator using this structure. Background Technology

[0002] Currently, industry-wide measures for vibration and noise reduction in elevator control cabinet contactors mainly focus on two aspects: First, optimizing the contactor's structure, such as using soft magnetic core materials and adding contact buffer pads. However, these methods are limited by the contactor's electrical performance and manufacturing costs, resulting in limited vibration and noise reduction effects and failing to address the noise problems of existing traditional contactors already in use. Second, implementing overall sound insulation within the control cabinet, such as pasting sound-absorbing cotton on the cabinet walls and adding sealing strips. While this method can reduce noise transmission to some extent, it cannot address the root cause of contactor vibration. Furthermore, overall sound insulation increases the size and weight of the control cabinet, hindering installation and maintenance. Long-term contactor vibration will still lead to wear and tear on its components, affecting the reliability of elevator operation.

[0003] For example, Chinese utility model patent CN220914116U discloses a vibration reduction and noise reduction device for an elevator contactor, including an upper cover assembly and a base assembly connected together, and a contactor suspended in the base assembly; sound-absorbing material is provided inside the upper cover assembly and the base assembly. This utility model uses vibration damping components to keep the contactor suspended, directly reducing the vibration generated by the rigid contact between the contactor and the base assembly; the sound-absorbing material around the upper cover assembly and the base assembly effectively absorbs and releases noise from contactor engagement; and there is no need to consider additional vibration reduction measures for fixing the upper cover assembly and the base assembly to the elevator control cabinet. The shortcomings are that it does not consider the vibration transmission between the base assembly and the elevator control cabinet; the contact area between the contactor mounting assembly and the sound-absorbing cotton is relatively large, resulting in poor vibration reduction. Summary of the Invention

[0004] To address the problems of existing elevator contactor vibration damping devices, such as poor vibration isolation between the device and the elevator control cabinet, and ineffective vibration damping due to the internal structure of the device, this invention provides an elevator contactor vibration and noise reduction structure. The connection structure between the device and the control cabinet improves the vibration isolation between them, while optimizing the internal structure of the device to enhance the isolation between contactor vibration and noise.

[0005] To achieve the above-mentioned technical effects, the present invention proposes: A vibration noise reduction structure for an elevator contactor includes a cabinet, which includes a front panel and a rear panel disposed opposite to each other, and a pair of side panels connected to the front panel and the rear panel and enclosing them to form an internal cavity of the cabinet. It also includes a soundproof chamber disposed within the cavity of the cabinet and connected to the rear panel through a vibration damping connection structure and connected to the side panels through a mounting base. A vibration damping connection structure is provided between the soundproof chamber and the mounting base.

[0006] This invention provides a connection method between a soundproof cabin and an elevator control cabinet. Specifically, a vibration-damping connection structure is used to achieve a flexible connection between the soundproof cabin and the rear panel of the cabinet. Mounting seats are installed on opposite sides of the top of the soundproof cabin, and each mounting seat connects to one side panel of the cabinet. The connection between the mounting seat and the soundproof cabin is achieved through the vibration-damping connection structure. This design avoids resonance between the vibration source and the rear panel of the cabinet. Furthermore, the side panel connection effectively prevents the cabinet from being excited by the vibration source, reducing the possibility of vibration being transmitted from the contactor to the cabinet.

[0007] The soundproof enclosure includes a base box and a cover plate. The base box has a flexible connection structure, including sound-absorbing cotton disposed at the bottom of the base box, a first base and a second base disposed on the sound-absorbing cotton, and the first base and the second base being fixedly connected. The first base and the second base are limited to the sound-absorbing cotton by limiting brackets. The base box has a fixed seat, and the limiting brackets are fixedly connected to the fixed seat. Sound-absorbing cotton is provided on the inner side wall of the base box. The limiting brackets and the limiting cotton are arranged in pairs. Sound-absorbing cotton is provided on the inner side wall of the cover plate.

[0008] The first base is shaped like a "Z" and has two supporting feet; the second base has several connecting holes arranged in a row, and the second base is symmetrically connected to two of the first bases; the first base and the second base are connected by bolts.

[0009] The limiting cotton has a first limiting groove, which is correspondingly provided with the first base; the limiting cotton also has a limiting protrusion; the limiting bracket has a limiting part, which is bolted to the fixing seat; the limiting bracket also has a limiting plate, which is attached to the side of the limiting cotton, and the limiting plate has a second limiting groove, which is correspondingly provided with the limiting protrusion.

[0010] The vibration-damping connection structure includes vibration-damping columns and plate-shaped elastic elements. The soundproof cabin and the mounting base are connected via the vibration-damping columns, and the soundproof cabin and the rear panel are connected via the plate-shaped elastic elements. The vibration-damping columns are columnar, with one end bonded to the side of the soundproof cabin and the other end fixedly connected to the mounting base via bolts. The mounting base is bolted to the side panel, achieving a flexible connection between the soundproof cabin and the cabinet side panel. The plate-shaped elastic elements are rectangular, embedded or bonded to the bottom surface of the soundproof cabin and to the rear panel of the cabinet, achieving a flexible connection between the soundproof cabin and the rear panel of the cabinet.

[0011] The mounting base is L-shaped; the mounting bases are arranged in pairs and are fixedly connected to the paired side plates respectively.

[0012] The bottom box is provided with a wiring opening and a wire fixing plate. The end face of the wire fixing plate facing the cover plate is provided with sound insulation cotton. The wire fixing plate is provided with several open wire tying holes. The cover plate is provided with sound insulation cotton corresponding to the wiring opening, and the shape of this sound insulation cotton corresponds to the wiring opening.

[0013] The bottom box and the cover plate are respectively provided with mating plates, and the bottom box and the cover plate are fixedly connected by the mating plates.

[0014] The cover plate has symmetrically arranged sealing plates at its open end.

[0015] The present invention also proposes an elevator that applies the above-mentioned elevator contactor vibration noise reduction structure.

[0016] The beneficial effects of this invention are: 1. The soundproof chamber and cabinet connection structure in this invention effectively prevents resonance between the vibration source and the cabinet's rear panel, while the side panel connection effectively avoids the cabinet being excited by the vibration source. 2. The soft connection structure inside the bottom box, through the combination of "contactor-base-limiting cotton," effectively isolates the vibration propagation of the vibration source. 3. This invention optimizes the wiring outlet of the bottom box, setting sound-insulating cotton for fixing the power cord and control cord. Combined with the sound-insulating cotton corresponding to the wiring outlet inside the cover plate, it further fixes the power cord and control cord, effectively solving the problem of "sound leakage from the wiring port." Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention in Embodiment 1.

[0018] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0019] Figure 3 This is a schematic diagram of the internal structure of the bottom box.

[0020] Figure 4This is a schematic diagram of the flexible connection structure inside the bottom box.

[0021] Figure 5 This is a schematic diagram of the connection between the first base and the second base.

[0022] Figure 6 This is a schematic diagram of the structure of the limiting cotton.

[0023] Figure 7 This is a schematic diagram of the limit bracket.

[0024] Figure 8 This is a schematic diagram of the bottom box.

[0025] Figure 9 This is a schematic diagram of the cover plate.

[0026] Icon labels: 100. Cabinet; 200. Soundproof Chamber; 300. Mounting Base; 400. Vibration Damping Connection Structure; 500. Sound Insulation Cotton; 600. Contactor; 101. Front panel; 102. Rear panel; 103. Side panel; 201. Base box; 202. Cover plate; 203. First base; 204. Second base; 205. Limiting bracket; 206. Limiting cotton; 207. Fixing seat; 208. Support foot; 209. Connecting hole; 210. First limiting groove; 211. Limiting protrusion; 212. Limiting part; 213. Limiting plate; 214. Second limiting groove; 215. Wiring opening; 216. Wire fixing plate; 217. Open wire tie; 218. Connecting plate; 219. Sealing plate; 401. Vibration damping column; 402. Plate-shaped elastic element. Detailed Implementation

[0027] The purpose of this invention is to provide a vibration and noise reduction structure for elevator contactors. Through multiple noise reduction designs such as a soundproof cabin, vibration-damping connection structure, and sound insulation cotton, it effectively isolates and absorbs vibration and noise, thereby improving the quietness and reliability of elevator operation.

[0028] The technical solution of the present invention will be described in detail below through specific embodiments.

[0029] Implementation 1 This embodiment focuses on the overall structure and installation method of the elevator contactor vibration noise reduction structure, emphasizing the combination and technical effect of the cabinet 100, the soundproof chamber 200, the vibration damping connection structure 400, and the mounting base 300. (See attached document.) Figure 1 and Figure 2This embodiment provides a vibration noise reduction structure for an elevator contactor, including a cabinet 100. The cabinet 100 is enclosed by a front panel 101, a rear panel 102, and a pair of side panels 103 to form an internal cavity. The front panel 101 and the rear panel 102 are arranged opposite to each other, and the side panels 103 connect the front panel 101 and the rear panel 102, together forming a closed installation space for accommodating the contactor. A soundproof chamber 200 is provided in the internal cavity of the cabinet 100. The soundproof chamber 200 is softly connected to the rear panel 102 of the cabinet 100 through a vibration damping connection structure 400, and is connected to the side panels 103 through a mounting base 300. The vibration damping connection structure 400 includes a vibration damping column 401 and a plate-shaped elastic element 402. The soundproof chamber 200 is connected to the mounting base 300 through the vibration damping column 401, and the soundproof chamber 200 is connected to the rear panel 102 through the plate-shaped elastic element 402. The vibration damping column 401 and the plate-shaped elastic element 402 are made of polyurethane or natural rubber, which have high elasticity and damping characteristics and can effectively absorb and isolate vibrations. The mounting base 300 is a metal bracket, fixed to the side plate 103, and connected to the side of the soundproof cabin 200 through the vibration damping column 401 to form a multi-point vibration damping support.

[0030] Reference Appendix Figure 2 The vibration damping column 401 is columnar, with one end bonded to the side of the soundproof chamber 200 and the other end fixedly connected to the mounting base 300 by bolts. The mounting base 300 is bolted to the side plate 103, achieving a flexible connection between the soundproof chamber 200 and the side plate 103 of the cabinet 100. The plate-shaped elastic element 402 is rectangular, embedded or bonded to the bottom surface of the soundproof chamber 200 and bonded to the rear plate 102 of the cabinet 100, achieving a flexible connection between the soundproof chamber 200 and the rear plate 102 of the cabinet 100. The plate-shaped elastic elements 402 are respectively set at the four corners of the bottom surface of the soundproof chamber 200. To make the positioning of the plate-shaped elastic elements 402 more accurate, positioning grooves can be pre-set on the bottom surface of the soundproof chamber 200 to embed and position the plate-shaped elastic elements 402. In this embodiment, the plate-shaped elastic elements 402 are directly bonded. The mounting base 300 is rigidly connected to the side plate 103 of the cabinet 100 by bolts. Because the vibration damping column 401 is eccentrically installed on the shell of the soundproof chamber 200, it ensures that the soundproof chamber 200 fits tightly against the cabinet 100 under the action of gravity, thereby reducing the shaking of the soundproof chamber 200. At the same time, attaching a suitable sound insulation cotton 500 to the rear of the soundproof chamber 200 can prevent the soundproof chamber 200 from forming a direct rigid connection with the cabinet 100, thereby effectively blocking the transmission of vibration energy to the cabinet 100.

[0031] The mounting base 300 is a metal bracket, L-shaped, and is fixed to the side plate 103 of the cabinet 100 by bolts. The soundproof cabin 200 is connected to the mounting base 300 by vibration damping columns 401, forming a multi-point vibration damping support. This design makes the connection between the soundproof cabin 200 and the cabinet 100 non-rigid, thereby cutting off the vibration transmission path and significantly reducing structural noise.

[0032] The vibration noise reduction structure for the elevator contactor in this embodiment improves upon the installation method of the soundproof chamber 200 in the prior art. Typically, the soundproof chamber 200 is installed on the rear side of the cabinet 100, which can be simplified to a thin plate with approximate dimensions of 1200*400*1.5 (mm). Based on classical thin plate theory (Kirchhoff's thin plate hypothesis), the general formula for the natural frequency of a rectangular thin plate with four fixed sides is: .

[0033] Calculations show that the fundamental frequency of the cabinet at 100mm rear end is prone to resonance with the vibration frequency generated by the contactor's operation. As is well known, the general formula for the natural frequency of a single-degree-of-freedom system is: .

[0034] Through actual measurements and theoretical calculations, it is known that when the contactor is installed on the rear plate 102 of the cabinet 100, the contactor and the rear plate 102 of the cabinet 100 are prone to resonance. Connecting the silencing chamber 200 to the rear plate 102 of the cabinet 100 using plate-shaped elastic elements 402 can change the system stiffness K. The system composed of four plate-shaped elastic elements 402 and the silencing chamber 200 can avoid the excitation source frequency range due to its natural frequency. Secondly, since the vibration direction of the vibration source is perpendicular to the front plate 101 and rear plate 102 of the cabinet 100, changing the connection to a side plate 103 can effectively prevent the cabinet 100 from being excited by the vibration source. The fundamental frequency of the rear side of the cabinet 100 and the vibration generated by the contactor's operation are less likely to resonate, achieving a soft connection between the silencing chamber 200 and the cabinet 100.

[0035] This embodiment is based on the natural frequency calculation formula of a single degree of freedom system. By combining the vibration damping column 401 with the mounting base 300, the system stiffness K is changed to avoid resonance between the vibration source and the rear plate 102 of the cabinet 100. The side plate 103 connection can also effectively avoid the cabinet 100 being excited by the vibration source, reducing the possibility of vibration being transmitted from the contactor to the cabinet.

[0036] Example 2 This embodiment further defines the internal structural details of the soundproof cabin, explaining in detail how it achieves noise reduction through soft connections and limiting designs.

[0037] Reference Appendix Figure 3 and Figure 9 In this embodiment, the soundproof chamber 200 includes a base box 201 and a cover plate 202. Both the base box 201 and the cover plate 202 are rectangular boxes. The base box 201 and the base plate are fastened together to form an internal cavity for installing and accommodating the contactor 600. (See attached diagram) Figures 3 to 7The base box 201 has a flexible connection structure inside, including sound insulation cotton 500 disposed at the bottom of the base box 201, and a first base 203 and a second base 204 disposed on the sound insulation cotton 500. The first base 203 and the second base 204 are fixedly connected by bolts. The first base 203 and the second base 204 are limited on the sound insulation cotton 500 by a pair of limiting brackets 205 and limiting cotton 206. (See attached diagram) Figure 8 The bottom box 201 has a fixing seat 207, which is a metal flange facing inward. The limiting bracket 205 is bolted to the fixing seat 207. The inner walls of both the bottom box 201 and the cover plate 202 are covered with sound insulation cotton 500 adapted to the vibration frequency of the vibration source (contactor 600). After the cover plate 202 and the bottom box 201 are fastened together, the sound insulation cotton 500 on the inner wall of the cover plate 202 and the sound insulation cotton 500 in the bottom box 201 form a continuous sound insulation layer.

[0038] In this embodiment, sound-absorbing cotton 500 is provided on all four sides of the interior of the bottom box 201. The sound-absorbing cotton 500 has high elasticity and damping properties, which can effectively absorb and isolate vibrations.

[0039] In this embodiment, the first base 203 is shaped like a "Z" and has two supporting feet 208. The second base 204 has a plurality of connecting holes 209 arranged in a row, and the second base 204 is symmetrically connected to the two first bases 203. The first bases 203 and the second base 204 are connected by bolts, so that the supporting feet form four supporting surfaces. All four supporting surfaces are in contact with the sound insulation cotton 500 at the bottom of the base box 201, forming multi-point support for the base box 201. The plurality of connecting holes 209 arranged on the second base 204 are used to fix the second base 204 and the contactor 600.

[0040] In this embodiment, the limiting cotton 206 has a first limiting groove 210, the position of which corresponds to the position of the first base 203. The limiting cotton 206 also has a limiting protrusion 211. Specifically, the limiting cotton 206 has two first limiting grooves 210 according to the position of the first base 203 on the second base 204. The width of the first limiting groove 210 is set according to the width of the first base 203. A limiting cotton 206 is set on each side of the second base 204. The first limiting groove 210 of each limiting cotton 206 engages and limits the first base 203 and fits against the support foot 208 of the first base 203. It should be noted that the width of the limiting cotton 206 needs to be set according to the length of the support foot 208 so that after the limiting cotton 206 is engaged with the first base 203, the support foot 208 is completely covered by the limiting cotton 206.

[0041] In this embodiment, the limiting bracket 205 has a limiting part 212, which is bolted to the fixing seat 207. The limiting bracket 205 also has a limiting plate 212, which fits against the side of the limiting cotton 206. The limiting plate 212 has a second limiting groove 214, which corresponds to the limiting protrusion 211. The limiting bracket 205 is U-shaped, with holes at both ends, and is connected to the fixing seat 207 on the bottom box 201 by bolts. The middle part of the limiting bracket 205 has an L-shaped structure that can cooperate with the limiting cotton 206. The two inner sides of the L-shaped structure fit against the top surface and one side of the limiting cotton 206, respectively. The L-shaped structure of the limiting bracket 205 also has a second limiting groove 214 for cooperating with the limiting protrusion 211. Through the cooperation of the L-shaped structure, the limiting protrusion 211 and the second limiting groove 214, and the fixed position of the limiting bracket 205 inside the base box 201, the limiting bracket 205 can limit the limiting cotton 206. At the same time, since the limiting bracket 205 and the limiting cotton 206 are also arranged in pairs, the L-shaped structure of the two limiting brackets 205 limits the two pieces of limiting cotton 206 respectively, thereby fixing the first base 203 and the second base 204 between the two pieces of limiting cotton 206.

[0042] In this embodiment, the inner wall of the bottom box 201 is provided with sound insulation cotton 500. The sound insulation cotton 500 located on the side of the bottom box 201 where the fixing seat 207 is located fills the gap between the limiting part 212 of the limiting bracket 205 and the inner wall of the bottom box 201. The limiting part 212 of the limiting bracket 205 fits in close to the sound insulation cotton 500. This design makes the internal structure more compact while ensuring that the bottom box 201 is filled with enough sound insulation cotton 500.

[0043] In this embodiment, the four supporting surfaces formed by the first base 203 can be evenly placed on the sound insulation cotton 500 at the bottom of the base box 201, which can prevent the sound insulation cotton 500 from being subjected to concentrated force, thereby preventing vibration energy from being transmitted through rigid contact. The limiting cotton 206 is provided with a matching first limiting groove 210 and a limiting protrusion 211, which can limit the displacement of the whole composed of the first base 203 and the second base 204 due to gravity or vibration. The limiting bracket 205 is provided with a corresponding second limiting groove 214, which cooperates with the limiting protrusion 211 of the limiting cotton 206, and the limiting bracket 205 is rigidly connected to the corresponding fixing seat 207 of the base box 201 by bolts, which can effectively fix the contactor, the first base 203, the second base 204 and the limiting cotton 206 within a limited range. The rigid vibrating body, consisting of the first base 203, the second base 204, and the contactor, can achieve vibration isolation and vibration absorption effects under the soft connection and limiting action of the sound insulation cotton 500 and the limiting cotton 206 in the base box 201.

[0044] In this embodiment, the cooperation between the limiting cotton 206 and the limiting bracket 205 ensures the stable position of the base on the sound insulation cotton 500, avoiding displacement or loosening caused by long-term vibration. The soft properties of the limiting cotton 206 also provide secondary vibration damping. The sound insulation cotton 500 completely covers the inner wall of the soundproof chamber 200, effectively blocking noise leakage. The vibration source adopts a soft connection method to achieve vibration isolation and damping. Through the double fixing structure of the limiting cotton 206 and the limiting bracket 205, the "contaminator-base-limiting cotton 206" is fixed within a limited range, thereby achieving the vibration isolation and damping effect.

[0045] Example 3 This embodiment, based on the actual installation requirements of elevator contactors, focuses on describing the detailed features such as wiring opening 215, wire fixing plate 216, and sealing plate 219, emphasizing installation convenience, wiring management, and sealing performance.

[0046] Continue to refer to the appendix Figures 3 to 9 In this embodiment, the elevator contactor vibration noise reduction structure includes a cabinet 100, which includes a front plate 101 and a rear plate 102 arranged opposite to each other, and a pair of side plates 103 connected to the front plate 101 and the rear plate 102 and enclosing them to form the inner cavity of the cabinet 100. It also includes a soundproof chamber 200, which is disposed in the cavity of the cabinet 100 and connected to the rear plate 102 through a plate-shaped elastic member 402. It is connected to the side plates 103 through a mounting base 300. The soundproof chamber 200 and the mounting base 300 are connected by a vibration damping column 401.

[0047] In this embodiment, the soundproof chamber 200 includes a base box 201 and a cover plate 202. The base box 201 has a flexible connection structure, including sound-insulating cotton 500 disposed at the bottom of the base box 201, a first base 203 and a second base 204 disposed on the sound-insulating cotton 500, and the first base 203 and the second base 204 are fixedly connected. The first base 203 and the second base 204 are limited on the sound-insulating cotton 500 by a limiting bracket 205 and a limiting cotton 206. The base box 201 has a fixing seat 207, and the limiting bracket 205 is fixedly connected to the fixing seat 207. The inner sidewall of the base box 201 is provided with sound-insulating cotton 500. The inner sidewall of the cover plate 202 is provided with sound-insulating cotton 500.

[0048] Reference Appendix Figure 3 and Figure 8In this embodiment, the bottom box 201 is provided with a wiring opening 215 and a wire fixing plate 216. Sound-absorbing cotton 500 is provided on the end face of the wire fixing plate 216 facing the cover plate 202. The wiring opening 215 is used for the lead-out of the contactor's power and control wires. The sound-absorbing cotton 500 on the wire fixing plate 216 is used to fix the power and control wires entering and exiting the soundproof chamber 200, and simultaneously fills gaps to prevent noise leakage. The shape of the sound-absorbing cotton 500 matches the wiring opening 215. The wire fixing plate 216 is provided with several open cable ties 217 for binding the power and control wires entering and exiting the soundproof chamber 200. The cover plate 202 is provided with sound-absorbing cotton 500 corresponding to the wiring opening 215. The shape of this sound-absorbing cotton 500 corresponds to the wiring opening 215, so that the wiring opening 215 is closed when the cover plate 202 is fastened to the bottom box 201. The cable fixing plate 216 has several open cable tie slots 217, which are U-shaped grooves to facilitate cable bundling and fixing, preventing noise caused by cable vibration and friction, and reducing vibration noise caused by loose cables. The design of the wiring opening 215 and the cable fixing plate 216 achieves effective sealing for convenient cable exit, avoiding the noise leakage problem caused by cable holes in traditional structures. The base box 201 is formed by an integrated bending molding process to create the fixing seat 207 and the cable fixing plate 216, which facilitates the production and processing of the base box 201.

[0049] In this embodiment, the opening end of the bottom box 201 and the opening end of the cover plate 202 are respectively provided with a mating plate 218. The mating plate 218 is a metal flange. The bottom box 201 and the cover plate 202 are fixedly connected by the mating plate 218. The mating plate 218 has through holes for bolt fixing after the bottom box 201 and the cover plate 202 are fastened together.

[0050] In this embodiment, the open end of the cover plate 202 is provided with symmetrically arranged sealing plates 219. The cover plate 202 and the bottom box 201 are fastened together, and the sealing plates 219 are attached to the outer side wall of the bottom box 201, covering the gap formed between the bottom box 201 and the cover plate 202. The design of the mating plate 218 and the sealing plate 219 makes the soundproof chamber 200 form a relatively sealed space when closed. Combined with the sound insulation cotton 500 inside the bottom box 201 and the cover plate 202, the sound insulation effect is further improved. This structure is particularly suitable for applications with strong vibration or noise sensitivity, such as high-speed elevators or outdoor elevators.

[0051] Example 4 This embodiment provides an elevator that utilizes an elevator contactor vibration noise reduction structure.

[0052] Continue to refer to the appendix Figures 1 to 9In this embodiment, the elevator contactor vibration noise reduction structure includes a cabinet 100, which includes a front plate 101 and a rear plate 102 arranged opposite to each other, and a pair of side plates 103 connected to the front plate 101 and the rear plate 102 and enclosing them to form the inner cavity of the cabinet 100. It also includes a soundproof chamber 200, which is disposed in the cavity of the cabinet 100 and connected to the rear plate 102 through a plate-shaped elastic member 402. It is connected to the side plates 103 through a mounting base 300. The soundproof chamber 200 and the mounting base 300 are connected by a vibration damping column 401.

[0053] The soundproof enclosure 200 includes a base box 201 and a cover plate 202. The base box 201 has a flexible connection structure, including sound-absorbing cotton 500 disposed at the bottom of the base box 201, and a first base 203 and a second base 204 disposed on the sound-absorbing cotton 500. The first base 203 and the second base 204 are fixedly connected. The first base 203 and the second base 204 are limited on the sound-absorbing cotton 500 by a limiting bracket 205 and a limiting cotton 206. The base box 201 has a fixing seat 207, and the limiting bracket 205 is fixedly connected to the fixing seat 207. The inner sidewall of the base box 201 is provided with sound-absorbing cotton 500. The inner sidewall of the cover plate 202 is provided with sound-absorbing cotton 500.

[0054] The first base 203 is shaped like a "Z" and has two supporting feet 208. The second base 204 has several connecting holes 209 arranged in a row, and the second base 204 symmetrically connects the two first bases 203. The first bases 203 and the second base 204 are connected by bolts.

[0055] The limiting cotton 206 has a first limiting groove 210, which corresponds to the first base 203. The limiting cotton 206 also has a limiting protrusion 211. The limiting bracket 205 has a limiting part 212, which is bolted to the fixing seat 207. The limiting bracket 205 also has a limiting plate 212, which fits against the side of the limiting cotton 206. The limiting plate 212 has a second limiting groove 214, which corresponds to the limiting protrusion 211.

[0056] The mounting base 300 is L-shaped. The mounting bases 300 are provided in pairs and are fixedly connected to the paired side plates 103 respectively.

[0057] The limiting bracket 205 and the limiting cotton 206 are set in pairs.

[0058] The bottom box 201 is provided with a wiring opening 215 and a wire fixing plate 216. The end face of the wire fixing plate 216 facing the cover plate 202 is provided with sound insulation cotton 500. The wire fixing plate 216 is provided with several open cable ties 217. The cover plate 202 is provided with sound insulation cotton 500 corresponding to the wiring opening 215, and the shape of this sound insulation cotton 500 corresponds to the wiring opening 215.

[0059] The bottom box 201 and the cover plate 202 are respectively provided with mating plates 218, and the bottom box 201 and the cover plate 202 are fixedly connected by the mating plates 218.

[0060] The opening end of the cover plate 202 is provided with symmetrically arranged sealing plates 219.

[0061] This embodiment also provides an elevator that applies the above-described elevator contactor vibration noise reduction structure.

[0062] The elevator contactor vibration noise reduction structure in this embodiment has the advantages of simple structure, easy installation and modification, and can be installed in the limited space of the control cabinet. Through the installation method combining the vibration damping connection structure 400 and the mounting base 300, the fundamental frequency at the rear of the cabinet 100 and the vibration generated by the contactor's operation are less likely to resonate, thus achieving vibration and noise reduction for the integrated enclosed soundproof chamber 200. The bottom box 201 of the soundproof chamber 200 is equipped with a flexible connection structure. The first base 203 and the second base 204 are fixed inside the bottom box 201 by the limiting bracket 205 and the limiting cotton 206. The contactor can be installed inside the soundproof chamber by connecting to the second base 204. The vibration generated by the contactor is buffered and reduced by the sound insulation cotton 500 inside the bottom box 201 and the limiting cotton 206, achieving an effective vibration reduction effect. The cover plate 202 and the sound insulation cotton 500 on the inner wall of the bottom box 201 are connected to form a continuous sound insulation cotton 500, achieving an effective sound insulation effect. The above structures together form a complete noise reduction closed loop of "vibration source blocking - vibration attenuation - noise absorption," ensuring that the overall noise of the control cabinet can be reduced to below 50dB. Elevators using the elevator contactor vibration noise reduction structure provided in this embodiment can provide a quiet elevator interior environment, suitable for scenarios with high requirements for elevator operating noise.

Claims

1. A vibration noise reduction structure for an elevator contactor, comprising a cabinet, which includes a front panel and a rear panel disposed opposite to each other, and a pair of side panels connected to and enclosing the front panel and the rear panel to form an internal cavity of the cabinet, characterized in that, It also includes a soundproof cabin, which is located inside the cabinet and connected to the rear panel via a vibration-damping connection structure and to the side panel via a mounting base. A vibration-damping connection structure is provided between the soundproof cabin and the mounting base.

2. The vibration and noise reduction structure for an elevator contactor according to claim 1, characterized in that, The soundproof cabin includes a base box and a cover plate, wherein... The bottom box has a flexible connection structure, including sound insulation cotton disposed at the bottom of the bottom box, a first base and a second base disposed on the sound insulation cotton, the first base and the second base being fixedly connected; the first base and the second base are limited to the sound insulation cotton by limiting brackets and limiting cotton; the bottom box has a fixing seat, the limiting brackets being fixedly connected to the fixing seat; sound insulation cotton is provided on the inner side wall of the bottom box; the limiting brackets and the limiting cotton are arranged in pairs; The inner wall of the cover plate is provided with sound insulation cotton.

3. The vibration and noise reduction structure for an elevator contactor according to claim 2, characterized in that, The first base is shaped like a "Z" and has two supporting feet; the second base has several connecting holes arranged in a row, and the second base is symmetrically connected to two of the first bases; the first base and the second base are connected by bolts.

4. The vibration and noise reduction structure for an elevator contactor according to claim 3, characterized in that, The limiting cotton has a first limiting groove, which is correspondingly disposed with the first base; the limiting cotton also has a limiting protrusion; The limiting bracket has a limiting part, which is bolted to the fixing seat; the limiting bracket also has a limiting plate, which is attached to the side of the limiting cotton, and the limiting plate has a second limiting groove, which is correspondingly arranged with the limiting protrusion.

5. The vibration and noise reduction structure for an elevator contactor according to claim 1, characterized in that, The vibration damping connection structure includes a vibration damping column and a plate-shaped elastic element. The soundproof cabin is connected to the mounting base through the vibration damping column, and the soundproof cabin is connected to the rear plate through the plate-shaped elastic element.

6. A vibration noise reduction structure for an elevator contactor according to any one of claims 2 to 5, characterized in that, The mounting base is L-shaped; the mounting bases are arranged in pairs and are fixedly connected to the paired side plates respectively.

7. The vibration and noise reduction structure for an elevator contactor according to claim 2, characterized in that, The bottom box is provided with a wiring opening and a wire fixing plate. The end face of the wire fixing plate facing the cover plate is provided with sound insulation cotton. The wire fixing plate is provided with several open wire tying holes. The cover plate is provided with sound insulation cotton corresponding to the wiring opening, and the shape of this sound insulation cotton corresponds to the wiring opening.

8. The vibration and noise reduction structure for an elevator contactor according to claim 7, characterized in that, The bottom box and the cover plate are respectively provided with mating plates, and the bottom box and the cover plate are fixedly connected by the mating plates.

9. The vibration and noise reduction structure for an elevator contactor according to claim 8, characterized in that, The cover plate has symmetrically arranged sealing plates at its open end.

10. An elevator, characterized in that, The elevator contactor vibration noise reduction structure includes any one of the claims 1 to 9 above.

Images