Damping and noise reduction device and pipeline damping and noise reduction structure

Abstract

This invention discloses a vibration reduction and noise reduction device and a pipeline vibration reduction and noise reduction structure. The vibration reduction and noise reduction device includes a vibration damping part, which is provided with a limiting groove for limiting the pipeline and a connecting structure for connecting to the evaporator. The pipeline includes a capillary tube and / or a transition tube. The vibration reduction and noise reduction device disclosed in this invention, by providing a vibration damping part, which can limit the pipeline through the limiting groove, and the connecting structure of the vibration damping part can achieve connection with the evaporator, effectively limits the pipeline to the evaporator. Since the evaporator is a non-sound-radiating component, it avoids the capillary tube and / or transition tube from contacting sound-radiating components, thereby preventing the deterioration of refrigerant noise and effectively reducing refrigerant noise. Simultaneously, it also reduces pipeline vibration and the propagation of structural sound, thereby reducing overall noise.

Description

Technical Field

[0001] This invention relates to the field of refrigerant noise reduction technology, and more specifically, to a vibration reduction and noise reduction device and a pipeline vibration reduction and noise reduction structure. Background Technology

[0002] In refrigeration equipment such as refrigerators, the refrigerant continuously circulates, and the constant changes in its pressure, temperature, and state generate refrigerant flow noise. This flow noise is mainly manifested as the jet noise caused by the abrupt change in the refrigerant's state as it enters the evaporator after being throttled through the capillary tube. This flow noise forms secondary radiated sound through the pipe wall and is then transmitted along the pipe wall to the refrigerator's foam layer and shell. Because the refrigerator's foam layer and shell are excellent sound radiating components, they amplify the sound, resulting in significant refrigerant flow and jet noise.

[0003] Currently, relatively long capillary tubes and transition tubes are used to reduce noise. The transition tube connects the capillary tube and the evaporator to reduce the jet noise caused by the sudden expansion of the cross-section. Because the capillary tube and transition tube are relatively long and are in a free state inside the refrigerator, they are more likely to come into contact with the refrigerator liner and fan housing. Even a slight contact will amplify the jet noise and worsen the refrigerant noise.

[0004] In conclusion, how to reduce refrigerant noise is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide a vibration reduction and noise reduction device to prevent pipelines from contacting sound-radiating materials, thereby reducing refrigerant noise. Another purpose of this invention is to provide a pipeline vibration reduction and noise reduction structure incorporating the above-mentioned vibration reduction and noise reduction device.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A vibration reduction and noise reduction device includes a vibration damping part, wherein the vibration damping part is provided with a limiting groove for limiting the pipeline and a connection structure for connecting to an evaporator; wherein the pipeline includes a capillary tube and / or a transition tube.

[0008] Preferably, the limiting groove and the connecting structure are located at both ends of the vibration damping part.

[0009] Preferably, there are at least two limiting grooves to limit the pipeline to different positions along its length.

[0010] Preferably, the connection structure is a slot.

[0011] Preferably, the vibration damping part is provided with a hollow part, which is located between the limiting groove and the connecting structure.

[0012] Preferably, the connection structure is a slot, and both the limiting groove and the inner wall of the slot are provided with an elastic layer or elastic component.

[0013] Preferably, the vibration damping and noise reduction device further includes a sound-absorbing part fixedly connected to the vibration damping part, the sound-absorbing part being located at one end of the vibration damping part, and the opening of the limiting groove facing the sound-absorbing part.

[0014] Preferably, the sound-absorbing part is provided with a hollow groove.

[0015] Preferably, the opening of the empty groove faces the limiting groove.

[0016] Preferably, the sound-absorbing part and the vibration-damping part are magnetically connected.

[0017] Preferably, the vibration damping part is provided with a first magnet, and the sound absorbing part is provided with a second magnet that is attracted and connected to the first magnet.

[0018] Preferably, there are at least two limiting grooves for limiting the pipe at different positions along its length, and the sound-absorbing part extends from the foremost limiting groove to the last limiting groove.

[0019] Based on the vibration reduction and noise reduction device provided above, the present invention also provides a pipeline vibration reduction and noise reduction structure, which includes: a pipeline, an evaporator, and the vibration reduction and noise reduction device described in any one of the above.

[0020] Preferably, the limiting groove is at least two to limit the different positions of the pipeline along its length, the pipeline includes a capillary, and the section of the capillary located between two of the limiting grooves includes the nozzle of the capillary.

[0021] The vibration reduction and noise reduction device provided by this invention, by setting a vibration damping part, can limit the pipeline through a limiting groove. The connection structure of the vibration damping part can be connected to the evaporator, thus limiting the pipeline to the evaporator. The pipeline includes a capillary tube and / or a transition tube, which limits the capillary tube and / or transition tube to the evaporator. Since the evaporator is a non-sound radiating component, it avoids the capillary tube and / or transition tube from contacting the sound radiating component, thereby avoiding the deterioration of refrigerant noise and effectively reducing refrigerant noise. At the same time, the vibration damping part can limit the pipeline to the evaporator, thus reducing the vibration of the pipeline and reducing the propagation of structural sound, thereby reducing noise. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the vibration reduction and noise reduction device provided in an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the installation of the vibration reduction and noise reduction device provided in an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the vibration damping part and pipeline in the vibration reduction and noise reduction device provided in the embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram showing the connection between the vibration damping part and the pipeline and evaporator in the vibration reduction and noise reduction device provided in the embodiment of the present invention. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] like Figure 1-4 As shown, the vibration reduction and noise reduction device provided in this embodiment of the invention includes a vibration reduction part 2, which is provided with a limiting groove 21 for limiting the pipeline 5 and a connecting structure 22 for connecting to the evaporator 6; wherein, the pipeline 5 includes a capillary tube 52 and / or a transition tube 51.

[0029] It should be noted that when the pipeline 5 includes a transition pipe 51, the transition pipe 51 connects the capillary tube 52 and the evaporator 6, and the inner diameter of the transition pipe 51 is larger than the inner diameter of the capillary tube 52. To improve stability, the above-mentioned connection structure 22 is preferred for fixed connection with the evaporator 6.

[0030] The vibration reduction and noise reduction device provided in this embodiment of the invention, by setting a vibration damping part 2, which can limit the pipe 5 through a limiting groove 21, and the connecting structure 22 of the vibration damping part 2 can be connected to the evaporator 6, thus the vibration damping part 2 effectively limits the pipe 5 to the evaporator 6. The pipe 5 includes a capillary tube 52 and / or a transition tube 51, that is, it effectively limits the capillary tube 52 and / or the transition tube 51 to the evaporator 6. Since the evaporator 6 is a non-sound radiating component, it avoids the capillary tube 52 and / or the transition tube 51 from contacting the sound radiating component, thereby avoiding the deterioration of refrigerant noise and effectively reducing refrigerant noise. At the same time, the vibration damping part 2 can limit the pipe 5 to the evaporator 6, thereby reducing the vibration of the pipe 5, reducing the propagation of structural sound, and thus reducing noise.

[0031] For ease of installation, the aforementioned limiting groove 21 and connecting structure 22 are located at both ends of the vibration damping part 2. Of course, the limiting groove 21 and connecting structure 22 can also be distributed in other positions of the vibration damping part 2, and are not limited to this.

[0032] In the aforementioned vibration reduction and noise reduction device, when the pipeline 5 includes a capillary tube 52 and a transition tube 51, since both capillary tube 52 and transition tube 51 require limiting, there must be at least two limiting grooves 21. At least one limiting groove 21 is used to limit and cooperate with the capillary tube 52, and at least one limiting groove 21 is used to limit and cooperate with the transition tube 51. When the pipeline 5 only includes a capillary tube 52 or a transition tube 51, there can be one or two limiting grooves 21, depending on the actual needs.

[0033] Preferably, there are at least two limiting grooves 21 to limit the pipe 5 at different positions along its length. This increases the number of limiting positions and improves the limiting strength, thereby enhancing the vibration reduction and noise reduction effect.

[0034] The shape of the limiting groove 21 is designed according to the shape of the pipeline 5. Specifically, if the cross-section of the pipeline 5 is circular, then the limiting groove 21 is preferably an arc-shaped groove, that is, the groove wall of the limiting groove 21 is an arc surface, and this arc surface is a superior arc, so as to improve the limiting effect on the pipeline 5. Of course, the limiting groove 21 can also be selected in other shapes, and this embodiment does not limit it.

[0035] The aforementioned connection structure 22 can be one or more. The number of connection structures 22 is selected according to actual needs. To improve vibration reduction and noise reduction effects, it is preferable to select at least two of the aforementioned connection structures 22.

[0036] The evaporator 6 mainly includes heat exchange tubes and fins mounted on the heat exchange tubes. For ease of installation, the connection structure 22 is preferably selected for connection with the heat exchange tubes of the evaporator 6. To facilitate positioning and simplify installation, the connection structure 22 is a locking groove. This groove is used to engage with the heat exchange tubes of the evaporator 6.

[0037] The shape of the slot is selected based on actual needs. Since heat exchange tubes are typically circular, an arc-shaped slot is preferred, meaning the slot wall is an arc surface, and this arc surface is a dominant arc, to improve the limiting effect on the heat exchange tube. Of course, other shapes of the slot can also be selected; this embodiment does not limit this.

[0038] To improve the vibration damping effect of the vibration damping section 2 and reduce the vibration transmitted from the pipeline 5 to the evaporator 6, the vibration damping section 2 is preferably provided with a hollow section 23, which is located between the limiting groove 21 and the connecting structure 22. Specifically, the limiting groove 21 and the connecting structure 22 are located at both ends of the vibration damping section 2, and the hollow section 23 is located in the middle of the vibration damping section 2.

[0039] The shape and number of hollow portions 23 can be selected according to actual needs. For example, hollow portions 23 can be strip-shaped, waist-shaped, or irregular in shape. This embodiment does not limit this.

[0040] The aforementioned vibration damping part 2, through the design of the hollow part 23, effectively reduces the stiffness of the vibration damping part 2, and acts as an air spring, further attenuating the vibration.

[0041] The hollow portion 23 mentioned above can be a through hole structure penetrating the vibration damping portion 2, or it can be a cavity structure inside the vibration damping portion 2. This embodiment does not limit this.

[0042] To improve vibration reduction, the inner wall of the limiting groove 21 is provided with an elastic layer or elastic component. Correspondingly, if the above-mentioned connection structure 22 is a slot, the inner wall of the slot is provided with an elastic layer or elastic component.

[0043] In practical applications, the aforementioned elastic layer and elastic component are made of relatively soft elastic materials. Preferably, the aforementioned elastic layer and elastic component are made of high-damping rubber materials. Of course, other materials can also be selected for the aforementioned elastic layer and elastic component, and this embodiment does not limit this.

[0044] In the above-mentioned vibration reduction and noise reduction device, the vibration of the pipeline 5 is consumed by the elastic layer or elastic component, and the vibration of the pipeline 5 is converted into heat energy of the material and dissipated, thereby improving the vibration reduction effect.

[0045] The aforementioned vibration damping part 2 itself has a vibration damping function. Specifically, the material of the vibration damping part 2 is a vibration damping material, such as rubber or other vibration damping materials. In this embodiment, the material of the vibration damping part 2 is not limited.

[0046] To further optimize the above technical solution, the above vibration reduction and noise reduction device also includes a sound-absorbing part 1 fixedly connected to the vibration reduction part 2. The sound-absorbing part 1 is located at one end of the vibration reduction part 2, and the opening of the limiting groove 21 faces the sound-absorbing part 1.

[0047] The aforementioned vibration damping and noise reduction device, by providing an absorption part 1 in the opening direction of the limiting groove 21, can absorb the radiated noise of the sound-absorbing pipe 5, reducing the propagation of airborne sound and thus further reducing noise. Moreover, placing the absorption part 1 at one end of the vibration damping part 2 facilitates the connection between the vibration damping part 2 and the absorption part 1, and also facilitates the installation of the entire vibration damping and noise reduction device; at the same time, the entire vibration damping and noise reduction device can be manufactured separately and then installed on the pipe 5 and the evaporator 6, which facilitates installation and disassembly.

[0048] To improve the sound absorption effect, the sound-absorbing part 1 is provided with a slot 11. Furthermore, the opening of the slot 11 faces the limiting slot 21. This further improves the sound absorption effect.

[0049] In the above-mentioned vibration reduction and noise reduction device, after the sound enters the sound absorption part 1 through the slot 11, the sound is impedance matched with the entire vibration reduction and noise reduction device, achieving no reflection, no transmission, and near-complete noise absorption, thus playing a noise reduction role.

[0050] The shape and number of the aforementioned empty slots 11 can be selected according to actual needs. Preferably, the aforementioned empty slot 11 is a single arc-shaped slot that spans all the limiting slots 21. Of course, the aforementioned empty slots 11 can also be selected in other shapes and numbers, and this embodiment does not limit this.

[0051] Furthermore, the aforementioned empty slot 11 is a through slot.

[0052] For ease of installation and disassembly, the sound-absorbing part 1 and the vibration-damping part 2 are preferably detachably fixedly connected. The limiting groove 21 is used to detachably limit the connection with the pipe 5, and the connecting structure 22 is used to detachably connect with the evaporator 6. The specific method of detachment is selected according to actual needs, and this embodiment does not limit it.

[0053] To facilitate the connection between the sound-absorbing part 1 and the vibration-damping part 2, it is preferable to connect the sound-absorbing part 1 and the vibration-damping part 2 by magnetic force. Specifically, one of the sound-absorbing part 1 and the vibration-damping part 2 is provided with a magnet, and the other is provided with a magnetic adsorption component that is attracted and connected to the magnet 3. The magnetic adsorption component can be an iron part or a magnet.

[0054] To improve the stability of the fixed connection, the magnetic adsorption component is preferably a magnet. Specifically, the vibration damping part 2 is provided with a first magnet 3, and the sound absorbing part 1 is provided with a second magnet 4 that is adsorbed and connected to the first magnet 3.

[0055] In the above-mentioned vibration reduction and noise reduction device, if there are at least two limiting grooves 21 for limiting the pipe 5 at different positions along its length, the sound-absorbing part 1 is preferably selected to extend from the frontmost limiting groove 21 to the rearmost limiting groove 21 to improve the sound absorption effect.

[0056] In the above-mentioned vibration reduction and noise reduction device, the size, number, and shape of the sound-absorbing part 1 and the vibration-damping part 2 are selected according to actual needs. Preferably, both the sound-absorbing part 1 and the vibration-damping part 2 are plate-shaped or block-shaped. Of course, the sound-absorbing part 1 and the vibration-damping part 2 can also be selected in other shapes, and this embodiment does not limit this.

[0057] Based on the improved vibration reduction and noise reduction device in the above embodiments, this embodiment also provides a pipeline vibration reduction and noise reduction structure, which includes: pipeline 5, evaporator 6, and vibration reduction and noise reduction device as described in any one of claims 1-11.

[0058] It is understood that the aforementioned pipe 5 includes a capillary tube 52 and / or a transition tube 51. The vibration damping part 2 of the aforementioned vibration damping and noise reduction device connects the pipe 5 and the evaporator 6, thereby limiting the pipe 5 on the evaporator 6. Specifically, the pipe 5 is matched with the limiting groove 21 of the vibration damping and noise reduction device, and the connecting structure 22 of the vibration damping and noise reduction device is connected to the evaporator 6.

[0059] Since the vibration reduction and noise reduction device provided in the above embodiments has the above-mentioned technical effects, and the above-mentioned pipeline vibration reduction and noise reduction structure includes the above-mentioned vibration reduction and noise reduction device, the above-mentioned pipeline vibration reduction and noise reduction structure also has corresponding technical effects, which will not be elaborated further in this article.

[0060] To improve the noise reduction effect, the limiting groove 21 of the above-mentioned vibration damping and noise reduction device has at least two limiting grooves 21 at different positions along the length of the limiting pipe 5. The pipe 5 includes a capillary 52, and the section of the capillary 52 located between two limiting grooves 21 includes the nozzle of the capillary 52. ​​In this way, the emission noise can be effectively reduced, thereby improving the noise reduction effect.

[0061] It should be noted that the nozzle of the capillary 52 is the outlet of the capillary 52. ​​The outlet of the capillary 52 can be connected to the transition pipe 51 or directly connected to the inlet of the evaporator 6.

[0062] In practical applications, the length of the capillary tube 52 between the two limiting grooves 21 is 10cm-20cm. This ensures that the section between the two limiting grooves 21 includes the nozzle of the capillary tube 52. Of course, the length of the section of the capillary tube 52 between the two limiting grooves 21 can also be other values, and is not limited to the above embodiment.

[0063] The above-mentioned pipeline vibration reduction and noise reduction structure can be applied to refrigeration equipment such as refrigerators. This embodiment does not limit the application of the above-mentioned pipeline vibration reduction and noise reduction structure.

[0064] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily 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 invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vibration reduction and noise reduction device, characterized in that, It includes a vibration damping part (2), which is provided with a limiting groove (21) for limiting the pipeline (5) and a connecting structure (22) for connecting to the evaporator (6); wherein the pipeline (5) includes a capillary tube (52) and / or a transition tube (51); It also includes a sound-absorbing part (1) fixedly connected to the vibration damping part (2), the sound-absorbing part (1) being located at one end of the vibration damping part (2), and the opening of the limiting groove (21) facing the sound-absorbing part (1); The sound-absorbing part (1) is provided with a hollow groove (11); The opening of the empty groove (11) faces the limiting groove (21); The sound-absorbing part (1) and the vibration-damping part (2) are magnetically connected. The vibration damping part (2) is provided with a first magnet (3), and the sound absorbing part (1) is provided with a second magnet (4) that is attracted and connected to the first magnet (3); The limiting groove (21) is at least two for limiting the pipe (5) at different positions along its length, and the sound-absorbing part (1) extends from the foremost limiting groove (21) to the last limiting groove (21). The vibration damping part (2) is provided with a hollow part (23), which is located between the limiting groove (21) and the connecting structure (22).

2. The vibration reduction and noise reduction device according to claim 1, characterized in that, The limiting groove (21) and the connecting structure (22) are located at both ends of the vibration damping part (2).

3. The vibration reduction and noise reduction device according to claim 1, characterized in that, The limiting groove (21) is at least two to limit the pipe (5) at different positions along its length.

4. The vibration reduction and noise reduction device according to claim 1, characterized in that, The connection structure (22) is a card slot.

5. The vibration reduction and noise reduction device according to claim 1, characterized in that, The connection structure (22) is a slot, and both the limiting groove (21) and the inner wall of the slot are provided with an elastic layer or elastic component.

6. A pipeline vibration reduction and noise reduction structure, characterized in that, include: Pipeline (5), evaporator (6), and vibration reduction and noise reduction device as described in any one of claims 1-5.

7. The pipeline vibration reduction and noise reduction structure according to claim 6, characterized in that, The limiting groove (21) is at least two different positions of the pipeline (5) along its length direction, the pipeline (5) includes a capillary (52), and the section of the capillary (52) located between two of the limiting grooves (21) includes the nozzle of the capillary (52).

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