Noise reduction window frame based on particle damping technology

Abstract

The utility model discloses a noise reduction window frame based on particle damping technology, which comprises an inner frame and an outer frame, a first particle damping device is arranged on the surface of the inner frame and / or the surface of the outer frame, the outer frame and the inner frame are connected through a connecting part, and a second particle damping device is arranged on the connecting part. In the utility model, the first particle damping device on the surface of the outer frame or the surface of the inner frame is used for weakening the noise which is about to enter the outer frame or the inner frame, so that the damage of noise energy to the structure and the stability of the outer frame or the inner frame is weakened, and meanwhile, the sound insulation index of a structural resonance effect area of the outer frame or the inner frame is reduced through the first particle damping device; and two different propagation interfaces are formed through the first particle damping device and the outer frame or the inner frame, so that noise passing through the different propagation interfaces is remarkably weakened. According to the utility model, the noise passing through the gap of the connecting part is obviously weakened through the second particle damping device arranged at the connecting part. Therefore, the window frame provided by the utility model has a better noise reduction function.

Description

Technical Field

[0001] The utility model relates to the field of noise reduction of window frames, in particular to a noise reduction window frame based on particle damping technology. Background Art

[0002] Windows are set on the walls of civil buildings, transportation vehicles, ships, etc., and window glass is installed inside the windows. Window glass plays the role of windproof, dustproof, noise reduction, etc. With the development of technology, users pay more and more attention to the noise reduction function of windows. The window glass is installed on the inside of the window through the window frame. The window frame is mostly a single-cavity structure made of aluminum alloy, with a thin frame wall. Noise can easily penetrate the window frame into civil buildings, transportation vehicles, and ships, affecting the user's comfort.

[0003] Therefore, how to design a noise reduction window frame that can improve the sound insulation of noise, thereby improving the comfort of users, is a key issue that needs to be urgently solved by technical personnel in this field. Utility Model Content

[0004] In view of this, an object of the present invention is to design a noise reduction window frame, which can improve the sound insulation of noise, thereby improving the comfort of users.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A noise reduction window frame based on particle damping technology comprises an inner frame and an outer frame connected to each other, wherein the inner frame is installed in a frame structure of a window, the outer frame is located in the frame structure of the inner frame, the frame structure of the outer frame is used to install window glass, and a first particle damping device is provided on the surface of the inner frame and / or the surface of the outer frame.

[0007] Preferably, the first particle damping device has an independent complete surface relative to the inner frame and the outer frame, and a part of the surface of the first particle damping device is connected to the surface of the inner frame or the surface of the outer frame.

[0008] Preferably, the first particle damping device is a hard shell particle damping device.

[0009] Preferably, the hard shell particle damping device includes a first hard shell particle damping device, the inner frame includes a first inner frame boundary plate, the first inner frame boundary plate is arranged close to the outside of the window, the first hard shell particle damping device is arranged on the surface of the first inner frame boundary plate, and the first hard shell particle damping device is a plurality of devices arranged in a frame-type structure along the first inner frame boundary plate.

[0010] Preferably, the hard shell particle damping device includes a second hard shell particle damping device, the inner frame also includes a second inner frame boundary plate and a first inner frame plate, the second inner frame boundary plate is arranged close to the inner side of the window, the two ends of the first inner frame plate are respectively connected to the first inner frame boundary plate and the second inner frame boundary plate, the second hard shell particle damping device is arranged on the surface of the first inner frame plate and close to the second inner frame boundary plate, and the second hard shell particle damping device is a plurality of devices arranged along the frame structure of the first inner frame plate.

[0011] Preferably, the hard shell particle damping device includes a third hard shell particle damping device, the outer frame includes a first outer frame plate and a second outer frame plate, two ends of the first outer frame plate extend inward and outward of the window respectively, one end of the second outer frame plate is connected to an end of the first outer frame plate close to the inner side of the window, and the other end of the second outer frame plate extends in a direction away from the first outer frame plate,

[0012] The first outer frame plate and the second outer frame plate enclose an installation space for installing the window glass, and the third hard shell particle damping device is arranged on the surface of the second outer frame plate facing away from the installation space. The third hard shell particle damping device is a plurality of devices arranged along the frame structure of the second outer frame plate.

[0013] Preferably, the inner frame includes an inner frame connecting plate extending toward the outer frame, the outer frame includes an outer frame connecting plate extending toward the inner frame, the inner frame connecting plate and the outer frame connecting plate are interconnected to form a connecting portion, a second particle damping device is provided on the connecting portion, and the second particle damping device is a plurality of devices arranged along the frame-type structure of the connecting portion.

[0014] Preferably, the second particle damping device is a flexible particle damping device, the inner frame includes a first inner frame plate extending along the inner and outer directions of the window, the inner frame connecting plate extends from the first inner frame plate to the outer frame, the outer frame includes a first outer frame plate extending along the inner and outer directions of the window, the outer frame connecting plate extends from the first outer frame plate to the inner frame, and the flexible particle damping device is located in a cavity surrounded by the first inner frame plate, the connecting portion and the first outer frame plate.

[0015] Preferably, a pressing block is pressed on a side of the flexible particle damping device away from the connecting portion, and the pressing block is adapted to a cavity surrounded by the first inner frame plate, the connecting portion and the first outer frame plate.

[0016] Preferably, the flexible particle damping device comprises a polymer film and particles arranged in the polymer film.

[0017] It can be seen from the above technical scheme that: in the present invention, the first particle damping device on the surface of the outer frame or the inner frame weakens the noise that is about to enter the outer frame or the inner frame, thereby weakening the damage of the noise energy to the structure and stability of the outer frame or the inner frame itself, and at the same time, the first particle damping device slows down the sound insulation of the structural resonance effect area of ​​the outer frame or the inner frame, and the first particle damping device forms two different propagation interfaces with the outer frame or the inner frame to significantly weaken the noise passing through different propagation interfaces. The present invention significantly weakens the noise passing through the gap of the connecting part through the second particle damping device set at the connecting part. Therefore, the window frame in the present invention has a better noise reduction function. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings described below are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure of the noise reduction window frame disclosed in the embodiment of the utility model;

[0020] Figure 2 A cross-sectional view of a noise reduction window frame disclosed in an embodiment of the utility model;

[0021] Figure 3 This is a structural schematic diagram of a noise reduction window frame disclosed in a specific embodiment of the utility model;

[0022] Figure 4 A plan view of a noise reduction window frame disclosed in a specific embodiment of the utility model;

[0023] Figure 5 This is a structural schematic diagram of a noise reduction window frame disclosed in a specific embodiment of the utility model;

[0024] Figure 6 The sound insulation curve diagrams of schemes 1 to 3 disclosed in the embodiments of the present utility model;

[0025] Figure 7 It is the sound insulation curve diagram of scheme 4 and scheme 5 disclosed in the embodiments of the utility model.

[0026] The names of the components are as follows:

[0027] 1-inner frame, 2-outer frame, 11-inner frame connecting plate, 12-first inner frame plate, 13-first inner frame boundary plate, 14-second inner frame boundary plate, 21-outer frame connecting plate, 22-first outer frame plate, 23-second outer frame plate, 3-flexible particle damping device, 4-first hard shell particle damping device, 5-second hard shell particle damping device, 6-third hard shell particle damping device, 7-compression block, 8-window glass. DETAILED DESCRIPTION

[0028] In view of this, the core of the utility model is to provide a noise reduction window frame based on particle damping technology, which can improve the sound insulation of noise, thereby improving the comfort of users.

[0029] In order to make the technical personnel in this field better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Figures 1 to 7 .

[0030] The noise reduction window frame based on particle damping technology disclosed in the embodiment of the utility model comprises an inner frame 1 and an outer frame 2 which are connected to each other. The inner frame 1 is installed in the frame structure of the window of the wall of a civil building or a transportation vehicle, a ship, etc., and the outer frame 2 is located in the frame structure of the inner frame 1, and the outer frame 2 is connected to the inner frame 1. The frame structure of the outer frame 2 is used to install the window glass 8.

[0031] In the embodiment of the utility model, a first particle damping device is provided on the surface of the inner frame 1 and / or on the surface of the outer frame 2. That is, the surface of the inner frame 1 is provided with the first particle damping device, or the surface of the outer frame 2 is provided with the first particle damping device, or the surface of the inner frame 1 and the surface of the outer frame 2 are both provided with the first particle damping device.

[0032] Firstly, the first particle damping device will weaken the noise that is about to enter the outer frame 2 or the inner frame 1, thereby weakening the damage of the noise energy to the strength of the outer frame 2 or the inner frame 1 itself and the installation stability; secondly, the particles in the first particle damping device will absorb the noise energy in the outer frame 2 or the inner frame 1, and release the noise energy by colliding with other particles, thereby making the sound insulation in the structural resonance effect area of ​​the inner frame 1 or the outer frame 2 more gentle, thereby achieving the purpose of improving the sound insulation.

[0033] In a specific embodiment of the utility model, the portion of the first particle damping device in contact with the inner frame 1 or the outer frame 2 is coplanar with the inner frame 1 or the outer frame 2. Specifically, if the first particle damping device is arranged on the surface of the inner frame 1, the portion of the first particle damping device in contact with the inner frame 1 is coplanar with the inner frame 1, that is, the outer shell portion of the first particle damping device itself and the portion of the inner frame 1 on which the first particle damping device is arranged together form a complete outer shell of the first particle damping device. If the first particle damping device is arranged on the surface of the outer frame 2, the portion of the first particle damping device in contact with the outer frame 2 is coplanar with the outer frame 2, that is, the outer shell portion of the first particle damping device itself and the portion of the outer frame 2 on which the first particle damping device is arranged together form a complete outer shell of the first particle damping device.

[0034] In another specific embodiment of the utility model, the first particle damping device has an independent complete surface relative to the inner frame 1 and the outer frame 2. Part of the surface of the first particle damping device is connected to the surface of the inner frame 1 or the surface of the outer frame 2. The surface of the inner frame 1 or the surface of the outer frame 2 forms two different propagation interfaces with the surface of the first particle damping device, and the noise will be significantly reduced when propagating between different propagation interfaces, thereby further improving the sound insulation.

[0035] In the embodiment of the utility model, the first particle damping device is preferably a hard shell particle damping device. Since the first particle damping device is arranged on the surface of the outer frame 2 or the surface of the inner frame 1, the first particle damping device with a hard shell will be more stable. The material of the hard shell can be metal or hard plastic. The hard shell particle damping device can be connected to the surface of the inner frame 1 or the surface of the outer frame 2 by bonding or welding. Of course, the first particle damping device can also be a flexible damping, which is not specifically limited herein.

[0036] The inner frame 1 includes a first inner frame boundary plate 13 and a second inner frame boundary plate 14 arranged relatively, the first inner frame boundary plate 13 is arranged near the outer side (outside the window) of the window, and the second inner frame boundary plate 14 is arranged near the inner side (inside the window) of the window. The outer side of the window is the outer side of a civil building, or the outer side of a traffic vehicle or a ship, and the inner side of the window is the inner side of a civil building, or the inner side of a traffic vehicle or a ship. The surface of the first inner frame boundary plate 13 is provided with a first hard shell particle damping device 4. The inner frame 1 and the outer frame 2 are both frame-type structures arranged around the center of the window. The first inner frame boundary plate 13 and the second inner frame boundary plate 14 constituting the inner frame 1 are also frame-type structures. A plurality of first hard shell particle damping devices 4 are arranged along the frame-type structure of the first inner frame boundary plate 13. The first hard shell particle damping device 4 is arranged as a block with a smaller volume, which can not only reduce the processing difficulty of the first hard shell particle damping device 4, but also reduce the installation difficulty of the first hard shell particle damping device 4.

[0037] First, the first hard shell particle damping device 4 weakens the noise that is about to enter the inner frame 1, so as to weaken the damage of the noise energy to the strength and stability of the inner frame 1 itself. Secondly, the first hard shell particle damping device 4 and the first inner frame boundary plate 13 form two obviously different propagation interfaces, which significantly weaken the noise passing through them. In addition, the particles in the first hard shell particle damping device 4 will receive the noise energy in the first inner frame boundary plate 13, and release the noise energy by colliding with other particles, thereby reducing the sound insulation of the first inner frame boundary plate 13 structural resonance effect area.

[0038] The inner frame 1 also includes a first inner frame plate 12, and the two ends of the first inner frame plate 12 are respectively connected to the first inner frame boundary plate 13 and the second inner frame boundary plate 14. A second hard shell particle damping device 5 is arranged on the surface of the first inner frame plate 12 and close to the second inner frame boundary plate 14. The first inner frame plate 12 is also a frame-shaped structure arranged around the center of the window. A plurality of second hard shell particle damping devices 5 are arranged along the frame-shaped structure of the first inner frame plate 12.

[0039] The second hard shell particle damping device 5 is arranged on the first inner frame plate 12 instead of the second inner frame boundary plate 14, so as to avoid occupying the vehicle or indoor space. At the same time, the second hard shell particle damping device 5 can also be protected.

[0040] First, the second hard shell particle damping device 5 weakens the noise that is about to enter the inner frame 1, so as to weaken the damage of the noise energy to the strength and stability of the inner frame 1 itself. Secondly, the second hard shell particle damping device 5 and the first inner frame plate 12 form two obviously different propagation interfaces, which significantly weaken the noise passing through them. In addition, the particles in the second hard shell particle damping device 5 will receive the noise energy in the first inner frame plate 12, and release the noise energy by colliding with other particles, thereby reducing the sound insulation of the first inner frame plate 12 structural resonance effect area.

[0041] The outer frame 2 includes a first outer frame plate 22 and a second outer frame plate 23. The first outer frame plate 22 extends along the inner and outer directions of the window, and the first outer frame plate 22 is arranged opposite to the first inner frame plate 12. One end of the first outer frame plate 22 is close to the first inner frame boundary plate 13, and the other end is close to the second inner frame boundary plate 14, that is, one end of the first outer frame plate 22 is close to the outer side of the window, and the other end is close to the inner side of the window. One end of the second outer frame plate 23 is connected to one end of the first outer frame plate 22 close to the inner side of the window, and the other end of the second outer frame plate 23 extends in a direction away from the first inner frame plate 12. The first outer frame plate 22 and the second outer frame plate 23 enclose an installation space for installing the window glass 8. The surface of the second outer frame plate 23 facing away from the installation space is provided with a third hard shell particle damping device 6. The outer frame 2 is a frame-type structure arranged around the center of the window, so the second outer frame plate 23 is also a frame-type structure arranged around the center of the window. A plurality of third hard shell particle damping devices 6 are provided along the frame-type structure of the second outer frame plate 23. The second outer frame plate 23 is close to the outside of the window relative to the second inner frame boundary plate 14, and the third hard shell particle damping device 6 is also close to the outside of the window relative to the second inner frame boundary plate 14. This protects the third hard shell particle damping device 6 and can also prevent the third hard shell particle damping device 6 from occupying the vehicle or indoor space.

[0042] Please refer to the attached Figure 4 In order to further reduce the weight of the window frame without affecting the noise reduction function of the third hard shell particle damping device 6, the utility model performs a modal analysis on the second outer frame plate 23, and analyzes that: along the frame structure of the second outer frame plate 23, the weak parts of the second outer frame plate 23 are located at the four corners of the second outer frame plate 23 and the center positions of the four sides. Therefore, the utility model embodiment sets the third hard shell particle damping device 6 at the corners of the second outer frame plate 23 and near the center positions of the four sides of the second outer frame plate 23.

[0043] First, the third hard shell particle damping device 6 can weaken the noise that is about to enter the outer frame 2, so as to weaken the damage of the noise energy to the strength of the outer frame 2 itself and the connection stability. Secondly, the particles in the third hard shell particle damping device 6 can absorb the noise energy in the outer frame 2, and release the noise energy by colliding with other particles, so as to reduce the sound insulation of the structural resonance effect area of ​​the outer frame 2. In addition, two obviously different propagation interfaces are formed between the third hard shell particle damping device 6 and the second outer frame plate 23, thereby significantly weakening the noise passing through them.

[0044] The inner frame 1 includes an inner frame connecting plate 11 extending from the first inner frame plate 12 to the first outer frame plate 22, and the outer frame 2 includes an outer frame connecting plate 21 extending from the first outer frame plate 22 to the first inner frame plate 12. The inner frame connecting plate 11 and the outer frame connecting plate 21 overlap each other and are connected by bolts. The inner frame connecting plate 11 and the outer frame connecting plate 21 are connected to each other to form a connecting portion. There are many gaps between the inner frame connecting plate 11 and the outer frame connecting plate 21 connected by bolts, and noise easily enters the vehicle or the room through the gap. For this reason, the embodiment of the utility model is provided with a second particle damping device on the connecting portion, and the second particle damping device can significantly weaken the noise passing through the connecting portion, thereby improving the sound insulation of the window frame. The inner frame connecting plate 11 and the outer frame connecting plate 21 are both frame-type structures, so the connecting portion is also a frame-type structure. A plurality of second particle damping devices are provided along the frame-type structure of the connecting portion.

[0045] Since the inner frame connecting plate 11 and the outer frame connecting plate 21 overlap each other and are connected by bolts, the nuts of the bolts protrude above the inner frame connecting plate 11 and the outer frame connecting plate 21, which will cause the surface of the connecting portion composed of the inner frame connecting plate 11 and the outer frame connecting plate 21 to be uneven. The utility model defines the second particle damping device as a flexible particle damping device 3. The first inner frame plate 12, the connecting portion and the first outer frame plate 22 form a cavity for accommodating the flexible particle damping device 3. The flexible particle damping device 3 does not have a specific shape, but a conformal cavity. The flexible particle damping device 3 located in the cavity can fit with the uneven surface of the connecting portion. In this way, there are sufficient particles in the flexible particle damping device 3 to contact the connecting portion, the first inner frame plate 12 and the first outer frame plate 22, so there are sufficient particles to receive the noise energy of the connecting portion, the first inner frame plate 12 and the first outer frame plate 22, and release the noise energy by colliding with other particles, thereby achieving a better noise reduction effect. The flexible particle damping device 3 can not only weaken the noise passing through the gap of the connection part, but also weaken the noise about to pass through the inner frame 1 and the outer frame 2 to a certain extent, thereby weakening the damage of the noise to the structural strength and stability of the inner frame 1 and the outer frame 2 to a certain extent.

[0046] If the flexible particle damping device 3 is arranged along the frame structure of the connecting part, it will not only increase the difficulty of manufacturing, but also increase the weight of the window frame. Therefore, the utility model arranges multiple flexible particle damping devices 3 along the frame structure of the connecting part at intervals, so that the weight of the window frame can be reduced as much as possible while effectively damping noise.

[0047] The flexible particle damping device 3 can be bonded in the cavity by gluing. The utility model preferably uses a pressing block 7 to press the flexible particle damping device 3 in the cavity. The pressing block 7 is located in the cavity and on the side of the flexible particle damping device 3 away from the connecting portion. The pressing block 7 applies pressure toward the connecting portion to the flexible particle damping device 3 so that the flexible particle damping device 3 is in close contact with the surface of the connecting portion, and at the same time, the flexible particle damping device 3 is in close contact with the first inner frame plate 12 and the first outer frame plate 22. In this way, there are sufficient particles in the flexible particle damping device 3 to contact the first inner frame plate 12, the first outer frame plate 22 and the connecting portion.

[0048] The pressing block 7 can be sponge, foam, or rubber. In order to limit the pressing block 7, the utility model sets a decorative strip on the side of the pressing block 7 away from the connection part, and the decorative strip limits the pressing block 7 to ensure that the pressing block 7 forms a stable and effective pressing force on the flexible particle damping device 3.

[0049] It should be noted that the pressing force of the pressing block 7 on the flexible particle damping device 3 needs to meet the following requirements: it can ensure that the flexible particle damping device 3 is tightly attached to the connecting part, the first inner frame plate 12, and the first outer frame plate 22, and can ensure that the particles in the flexible particle damping device 3 can move to receive and release noise energy.

[0050] The flexible particle damping device 3 comprises a polymer film and particles arranged in the polymer film. The polymer film can be a polyurethane film or a modified polyester fiber film.

[0051] At this point, the utility model forms the following scheme: a flexible particle damping device 3 is set at the connecting portion of the inner frame 1 and the outer frame 2, a third hard shell particle damping device 6 is set on the second outer frame plate 23 of the outer frame 2, a first hard shell particle damping device 4 is set on the first inner frame boundary plate 13 of the inner frame 1, and a second hard shell particle damping device 5 is set on the first inner frame plate 12 of the inner frame 1.

[0052] The process of noise reduction is as follows: the main function of the first hard shell particle damping device 4 is to weaken the noise that is about to enter the inner frame 1, so as to weaken the damage of the noise energy to the structural strength and stability of the inner frame 1 itself. The flexible particle damping device 3 mainly weakens the noise that passes through the gap of the connection part, and at the same time, it will also weaken the noise that is about to enter the inner frame 1 and the outer frame 2 to a certain extent. The main function of the third hard shell particle damping device 6 is to absorb the noise energy inside the outer frame 2 through the internal particles, and release the noise energy by colliding with other particles, thereby slowing down the sound insulation of the resonance effect area of ​​the outer frame 2 and improving the noise reduction effect. The main function of the second hard shell particle damping device 5 is to absorb the noise energy inside the inner frame 1 through the internal particles, and release the noise energy by colliding with other particles, thereby slowing down the sound insulation of the resonance effect area of ​​the inner frame 1 and improving the noise reduction effect. In addition, the positions of the first hard shell particle damping device 4 and the second hard shell particle damping device 5 are roughly opposite, so they can also offset each other's noise.

[0053] This application pre-tests the noise reduction window frame and first combines three solutions:

[0054] Solution 1: A flexible particle damping device 3 is provided at the connection portion between the outer frame 2 and the inner frame 1 .

[0055] Solution 2: A third hard shell particle damping device 6 is provided on the second outer frame plate 23 of the outer frame 2 .

[0056] Solution three: a first hard shell particle damping device 4 is provided on the first inner frame boundary plate 13 of the inner frame 1 , and a second hard shell particle damping device 5 is provided on the first inner frame plate 12 of the inner frame 1 .

[0057] After measuring the sound insulation curves of the above three schemes, as shown in the attached Figure 6 shown.

[0058] By attaching Figure 6 It can be found that:

[0059] In the first solution, the flexible particle damping device 3 does not significantly improve the sound insulation of the window frame in the low frequency band, but has a good effect in improving the sound insulation of the mid- and high-frequency bands, which effectively solves the problem of the connection between the inner frame 1 and the outer frame 2 being too weak. Since the frequency band of interest for noise reduction of the window frame is the low frequency band, the overall sound insulation is not significantly improved.

[0060] The third hard shell particle damping device 6 in the second solution can improve the low-frequency sound insulation in the window frame, but the improvement of high-frequency sound insulation is not very obvious.

[0061] The first hard shell particle damping device 4 and the second hard shell particle damping device 5 in the third solution can greatly improve the low-frequency sound insulation in the window frame.

[0062] The combination of the above three solutions forms the following solution four and solution five:

[0063] Solution 4: Combining Solution 1 with Solution 2, that is, setting a flexible particle damping device 3 at the connection portion, and setting a third hard shell particle damping device 6 on the second outer frame plate 23 of the outer frame 2.

[0064] Scheme 5: Combine Scheme 1, Scheme 2 and Scheme 3, that is, a flexible particle damping device 3 is set at the connecting part, a third hard shell particle damping device 6 is set on the second outer frame plate 23 of the outer frame 2, a first hard shell particle damping device 4 is set on the first inner frame boundary plate 13 of the inner frame 1, and a second hard shell particle damping device 5 is set on the first inner frame plate 12 of the inner frame 1.

[0065] After testing, as attached Figure 7 As shown in the figure: In Scheme 4, the sound insulation in the mid-low frequency band has been significantly improved, the sound insulation in the high frequency band has slightly decreased, and the overall sound insulation has been improved. In Scheme 5, the sound insulation in the mid-low frequency band has been strengthened, the sound insulation in the high frequency band has slightly decreased, and the overall sound insulation has been significantly improved.

[0066] In the description of this application, the terms "first", "second", and "first" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0067] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A noise reduction window frame based on particle damping technology, comprising an inner frame (1) and an outer frame (2) connected to each other, wherein the inner frame (1) is installed in a frame structure of a window, the outer frame (2) is located in the frame structure of the inner frame (1), and the frame structure of the outer frame (2) is used to install window glass (8), characterized in that: A first particle damping device is provided on the surface of the inner frame (1) and / or the surface of the outer frame (2).

2. The noise reduction window frame based on particle damping technology according to claim 1, characterized in that: The first particle damping device has an independent complete surface relative to the inner frame (1) and the outer frame (2), and a part of the surface of the first particle damping device is connected to the surface of the inner frame (1) or the surface of the outer frame (2).

3. The noise reduction window frame based on particle damping technology according to claim 1, characterized in that: The first particle damping device is a hard shell particle damping device.

4. The noise reduction window frame based on particle damping technology according to claim 3, characterized in that: The hard shell particle damping device comprises a first hard shell particle damping device (4); the inner frame comprises a first inner frame boundary plate (13); the first inner frame boundary plate (13) is arranged close to the outer side of the window; the first hard shell particle damping device (4) is arranged on the surface of the first inner frame boundary plate (13); and the first hard shell particle damping device (4) is a plurality of devices arranged along the frame structure of the first inner frame boundary plate (13).

5. The noise reduction window frame based on particle damping technology according to claim 4, characterized in that: The hard shell particle damping device comprises a second hard shell particle damping device (5); the inner frame (1) further comprises a second inner frame boundary plate (14) and a first inner frame plate (12); the second inner frame boundary plate (14) is arranged close to the inner side of the window; two ends of the first inner frame plate (12) are respectively connected to the first inner frame boundary plate (13) and the second inner frame boundary plate (14); the second hard shell particle damping device (5) is arranged on the surface of the first inner frame plate (12) and close to the second inner frame boundary plate (14); the second hard shell particle damping device (5) is a plurality of devices arranged along the frame structure of the first inner frame plate (12).

6. The noise reduction window frame based on particle damping technology according to claim 3, characterized in that: The hard shell particle damping device comprises a third hard shell particle damping device (6); the outer frame (2) comprises a first outer frame plate (22) and a second outer frame plate (23); two ends of the first outer frame plate (22) extend inwardly and outwardly of the window respectively; one end of the second outer frame plate (23) is connected to an end of the first outer frame plate (22) close to the inner side of the window; and the other end of the second outer frame plate (23) extends in a direction away from the first outer frame plate (22); The first outer frame plate (22) and the second outer frame plate (23) enclose an installation space for installing the window glass (8); the third hard shell particle damping device (6) is arranged on a surface of the second outer frame plate (23) facing away from the installation space; the third hard shell particle damping device (6) is a plurality of devices arranged along the frame structure of the second outer frame plate (23).

7. The noise reduction window frame based on particle damping technology according to claim 1, characterized in that: The inner frame (1) comprises an inner frame connecting plate (11) extending toward the outer frame (2); the outer frame (2) comprises an outer frame connecting plate (21) extending toward the inner frame (1); the inner frame connecting plate (11) and the outer frame connecting plate (21) are connected to each other to form a connecting portion; a second particle damping device is provided on the connecting portion; and the second particle damping device is a plurality of devices arranged along the frame structure of the connecting portion.

8. The noise reduction window frame based on particle damping technology according to claim 7, characterized in that: The second particle damping device is a flexible particle damping device, the inner frame (1) comprises a first inner frame plate (12) extending along the inner and outer directions of the window, the inner frame connecting plate (11) extends from the first inner frame plate (12) to the outer frame (2), the outer frame (2) comprises a first outer frame plate (22) extending along the inner and outer directions of the window, the outer frame connecting plate (21) extends from the first outer frame plate (22) to the inner frame (1), and the flexible particle damping device is located in a cavity surrounded by the first inner frame plate (12), the connecting portion and the first outer frame plate (22).

9. The noise reduction window frame based on particle damping technology according to claim 8, characterized in that: A pressing block (7) is pressed on a side of the flexible particle damping device away from the connecting portion, and the pressing block (7) is adapted to a cavity surrounded by the first inner frame plate (12), the connecting portion and the first outer frame plate (22).

10. The noise reduction window frame based on particle damping technology according to claim 8, characterized in that: The flexible particle damping device (3) comprises a polymer film and particles arranged in the polymer film.

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