A noise reduction system and energy storage cabinet

Abstract

The utility model discloses a kind of noise reduction system and energy storage cabinet, it is related to energy storage cabinet technical field, noise reduction system includes: mounting cover, for being arranged in the sound wave transmission direction of noise generated by thermal management device;At least one sound guide, be in mounting cover, sound guide has the inclined setting of several guide portions relative to the inner wall of mounting cover, and several guide portions are used to block the sound wave of noise generated by thermal management device and can be exported to the direction close to ground. The above-mentioned noise reduction system, can reduce noise generated when thermal management device works by the form of blocking sound wave, that is, can realize reducing noise generated when whole thermal management system works, improve user's use experience.

Description

Technical Field

[0001] This utility model relates to the field of energy storage cabinet technology, and more specifically, to a noise reduction system. Furthermore, this utility model also relates to an energy storage cabinet. Background Technology

[0002] Energy storage cabinets are devices specifically designed to store electrical energy and can release it as needed. The energy-providing component is the battery system. To ensure the safety and efficiency of the battery system, energy storage cabinets are typically equipped with a thermal management system, such as an air-cooled or liquid-cooled system. In practical applications, the thermal management system generates considerable noise during operation, affecting the user experience.

[0003] In the process of realizing this utility model, the inventors discovered that the prior art has at least the following problems:

[0004] The thermal management system is quite noisy when it is working. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a noise reduction system that can effectively reduce the noise generated by the thermal management system during operation. Another purpose of this utility model is to provide an energy storage cabinet.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a noise reduction system, including:

[0008] Mounting cover, used to be positioned in the direction of sound wave transmission of noise generated by thermal management devices;

[0009] At least one sound guide is disposed inside the mounting cover. The sound guide has a plurality of guide portions that are inclined relative to the inner wall of the mounting cover. The plurality of guide portions are used to block the sound waves of noise generated by the thermal management device and to direct them toward the ground.

[0010] Preferably, the mounting cover has an inner sidewall that can be disposed opposite to the thermal management device, and a plurality of sound guides are arranged in the height direction of the inner sidewall.

[0011] Preferably, a blocking part is connected to one end of the guide portion away from the inner sidewall. The blocking part extends in a direction perpendicular to the inner sidewall and is used to block the sound wave from propagating in a direction away from the ground.

[0012] The guide portion is connected to a transition portion at one end near the inner sidewall. The transition portion is fitted to the inner sidewall and is used to guide the sound waves to a position close to the ground.

[0013] Preferably, it further includes a fixing frame, the fixing frame including a frame body and connecting portions extending on both sides relative to the frame body, the connecting portions being connected to the mounting cover, and a plurality of the sound guides being evenly distributed within the frame body.

[0014] Preferably, at least a portion of the inner wall of the mounting cover and at least one of the sound guides is provided with a sound-absorbing pad, which is used to absorb noise.

[0015] Preferably, the sound-absorbing pad is filter cotton, and the filter cotton is arranged on the surface of a plurality of edge sidewalls circumferentially connected to the inner sidewall of the mounting cover;

[0016] And / or, the sound-absorbing pad is a flocked layer, which is attached to the surface of the transition portion and / or the blocking portion of the sound guide.

[0017] This utility model also provides an energy storage cabinet, comprising:

[0018] The cabinet has a mounting cavity for placing heat-dissipating objects;

[0019] A thermal management system is provided with a plurality of thermal management devices, which are arranged on the outer periphery of the heat dissipation object so as to at least regulate the temperature of the heat dissipation object placed in the mounting cavity;

[0020] A noise reduction system is provided in the direction of sound wave transmission of noise generated by at least one of the thermal management devices, for reducing the noise generated by the thermal management device by blocking and / or absorbing sound waves.

[0021] Preferably, the cabinet is provided with a plurality of air inlets, and at least one of the air inlets is provided with the noise reduction system.

[0022] Preferably, the noise reduction system is as described in any of the preceding claims.

[0023] Preferably, it also includes a battery system located within the mounting cavity.

[0024] The noise reduction system provided by this utility model includes a mounting cover and at least one sound guide disposed inside the mounting cover. The mounting cover is arranged in the direction of sound wave transmission of noise generated by the thermal management device, and can control the noise generated when the thermal management device is operating. Specifically, the sound guide is provided with several guide parts that are inclined relative to the inner wall of the mounting cover to block the sound waves of noise and guide them towards the ground, which can effectively reduce the noise generated when the thermal management system is operating and improve the user experience.

[0025] The noise reduction system provided by this utility model has at least the following beneficial effects: by using the guide part that is inclined relative to the inner wall of the mounting cover, the sound wave can be blocked and directed towards the ground, thereby reducing the noise generated by the thermal management device during operation, and thus reducing the noise generated by the entire thermal management system during operation. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of the energy storage cabinet provided by this utility model;

[0028] Figure 2 This is a schematic diagram of the noise reduction system provided by the present invention;

[0029] Figure 3 A rear view of the specific noise reduction system provided by this utility model;

[0030] Figure 4 This is a front view of the noise reduction system provided by this utility model;

[0031] Figure 5 for Figure 4 A sectional view along the AA direction.

[0032] Figures 1-5 In the accompanying drawings, the reference numerals include:

[0033] 1-Cabinet; 2-Thermal management device; 3-Noise reduction system; 4-Ground; 31-Mounting cover; 32-Sound guide; 33-Fixing frame; 311-Inner side wall; 312-Edge side wall; 321-Blocking part; 322-Guide part; 323-Transition part; 331-Connecting part; 332-Frame. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] The core of this invention is to provide a noise reduction system that can reduce the noise generated during the operation of a thermal management system. Another core aspect of this invention is to provide an energy storage cabinet.

[0036] The thermal management device 2 used in the noise reduction system 3 provided by this utility model is not limited to energy storage cabinets, but can also be used in other occasions that require thermal management measures, such as air conditioning units.

[0037] The noise reduction system 3 includes: a mounting cover 31, which is arranged in the direction of sound wave transmission of the noise generated by the thermal management device 2; at least one sound guide 32, which is disposed inside the mounting cover 31. The sound guide 32 has a plurality of guide portions 322 that are inclined relative to the inner wall of the mounting cover 31. The plurality of guide portions 322 are used to block the sound waves of the noise generated by the thermal management device 2 and can guide them toward the direction close to the ground 4.

[0038] In this embodiment, the sound guide 32 is disposed inside the mounting cover 31. Specifically, it can be arranged on the inner wall of any mounting cover 31 or on multiple inner walls of the mounting cover 31. The specific arrangement of the sound guide 32 is not limited.

[0039] Please refer to Figure 1 The mounting cover 31 is specifically arranged in the direction of sound wave transmission of the noise generated by the thermal management device 2. This transmission direction can be a single direction or multiple directions, which can be defined according to the on-site sound insulation and noise reduction requirements.

[0040] The mounting cover 31 can be set at a fixed position so that the noise at this fixed position can be reduced by the sound guide 32 inside it, thereby reducing the noise level generated by the thermal management device 2. The fixed position can be the position where the noise level is relatively high, or any direction in which the noise propagates.

[0041] The mounting cover 31 can also be set in multiple fixed positions so that the sound guide 32 inside it can simultaneously reduce noise from multiple directions, thereby reducing the noise generated by the thermal management device 2.

[0042] The mounting cover 31 can be installed at one or more thermal management devices 2, depending on the actual noise reduction requirements. If there are devices with relatively low noise that can be ignored among the multiple thermal management devices 2, then there is no need to install the mounting cover 31 and the sound guide 32, thus avoiding structural redundancy and space occupation.

[0043] In this embodiment, the sound waves of noise generated by the thermal management device 2 are blocked by the guide portion 322 of the sound guide 32, and the sound waves are directed towards the ground 4, so as to reduce the noise level that the operator can hear / measure at a certain height.

[0044] The guide portion 322 is inclined relative to the inner wall of the mounting cover 31. If the mounting cover 31 is square, the inner wall of the mounting cover 31 can be any position of the side wall, bottom wall, or top wall. Specifically, it can guide some of the sound waves that generate noise when the thermal management device 2 is operating through the guide portion 322 of the sound guide 32 installed at any position on the inner wall, and direct the sound waves of the noise towards the ground 4, so as to achieve a noise reduction effect. Here, "some of the sound waves" refers to the sound waves that may not be blocked by the guide portion 322 and propagate directly through the air.

[0045] Based on the above embodiments, please refer to Figure 1 , Figure 2 The mounting cover 31 has an inner sidewall 311 that can be disposed opposite to the thermal management device 2, and a plurality of sound guides 32 are arranged in the height direction of the inner sidewall 311. The mounting cover 31 has an opening that can be disposed opposite to the thermal management device 2, and the specific size and shape of the opening are not limited.

[0046] Specifically, the inner wall 311 is an inner wall facing the thermal management device 2. By setting the sound guide 32 on the inner wall 311, the noise generated by the thermal management device 2 during operation can be accurately received and the direction of sound wave transmission can be changed by blocking the sound waves, so as to guide some of the sound waves downward to the ground 4, thereby reducing the noise.

[0047] Several sound guides 32 are arranged along the height of the inner wall 311. The specific distribution of the sound guides 32 can cover the sound wave dispersion range of the noise generated by the thermal management device 2 as much as possible, so as to guide more noise sound waves to the ground 4 and reduce the noise level that the operator can hear / measure.

[0048] In this embodiment, it should be noted that if an air inlet is provided on the inner sidewall 311, the sound guide 32 needs to be set away from the air inlet to avoid affecting the air intake and to avoid interfering with or affecting the operation of the thermal management device 2.

[0049] Based on any of the above embodiments, please refer to Figure 4 , Figure 5 The guide portion 322 is connected to a blocking portion 321 at one end away from the inner wall 311. The blocking portion 321 extends in a direction perpendicular to the inner wall 311 and is used to block the sound waves from propagating in a direction away from the ground 4.

[0050] Please refer to Figure 1 The extension direction of the blocking part 321 is specifically perpendicular to the inner sidewall 311 and close to the thermal management device 2. Specifically, the extension length of the blocking part 321 can extend to the top of the thermal management device 2 or extend to the opening position of the mounting cover 31. The specific design can be flexibly combined with the actual situation.

[0051] By providing the blocking part 321, as many noise sound waves as possible can be intercepted, allowing more sound waves to be blocked by the guide part 322 and guided to the ground 4, thereby minimizing the noise during operation of the thermal management device 2. Here, intercepting noise sound waves also refers to reducing the amount of noise sound waves transmitted upwards, thereby reducing the noise heard / measured by the operator at a certain height.

[0052] Based on any of the above embodiments, please refer to Figure 4 , Figure 5 The guide portion 322 is connected to a transition portion 323 at one end near the inner wall 311. The transition portion 323 is fitted to the inner wall 311 and is used to guide the sound waves to a position close to the ground 4.

[0053] In this embodiment, it should be noted that if the inner sidewall 311 is provided with an air inlet, the length of the transition portion 323 extending away from the guide portion 322 and the size of the transition portion 323 should take into account the air inlet to avoid affecting the air intake effect.

[0054] In this embodiment, the transition part 323 is specifically able to cooperate with the guide part 322 to guide the blocked sound waves toward the ground 4, so as to reduce the noise reduction effect when the thermal management device 2 is working by changing the propagation direction of the sound waves.

[0055] Based on any of the above embodiments, please refer to Figure 1 , Figure 4 , Figure 5 It also includes a fixed frame 33, which includes a frame body 332 and connecting portions 331 extending on both sides of the frame body 332. The connecting portions 331 are connected to the mounting cover 31, and a plurality of sound guides 32 are evenly distributed inside the frame body 332.

[0056] The connection between the connecting part 331 and the mounting cover 31 is a detachable connection, while the connection between the sound guide 32 and the frame 332 can be either detachable or integrally formed.

[0057] By setting a fixed frame 33, the sound guide 32 can be easily installed and removed from the mounting cover 31, improving the ease of assembly and disassembly of the entire noise reduction system 3.

[0058] like Figure 5 As shown, the sound guide 32 is located entirely within the frame 332 and none of its edges extend beyond the edge of the frame 332. The frame 332 also provides overall protection for the sound guide 32, ensuring its performance and service life.

[0059] Based on any of the above embodiments, at least a portion of the inner wall of the mounting cover 31 and the sound guide 32 is provided with a sound-absorbing pad for absorbing noise.

[0060] The sound-absorbing pad here can convert sound wave energy into other forms, thereby reducing the intensity of sound waves and achieving a noise reduction effect.

[0061] In this embodiment, at least a portion of the inner wall of the mounting cover 31, i.e., at least a portion of the inner sidewall 311 and the edge sidewall 312, such as a portion of the surface of the inner sidewall 311, the entire surface of the inner sidewall 311, a portion of the surface of the edge sidewall 312, or the entire surface of the edge sidewall 312.

[0062] At least a portion of the sound guide 32 is at least a portion of the position of at least one of the blocking portion 321, the guide portion 322, and the transition portion 323, such as a portion of the surface of the blocking portion 321 or the entire surface of the blocking portion 321.

[0063] The above-mentioned placement examples are merely illustrations. By setting up the sound-absorbing pad, the noise reduction effect can be further optimized while the guide part 322 guides the direction of noise wave transmission, effectively reducing noise and improving the user experience.

[0064] In this embodiment, the specific form of the sound-absorbing pad is not limited, such as sound-absorbing cotton, sound-absorbing foam, or other structures that can reduce noise.

[0065] In one implementation, such as Figure 1 As shown, the inner wall 311 and the inner wall opposite to it are not provided with sound-absorbing pads to avoid interference with the thermal management device 2. However, the other inner walls of the mounting cover 31, which are the multiple edge sidewalls 312 circumferentially connected to the inner wall 311, can all have sound-absorbing pads on their surfaces. These pads absorb sound waves to reduce noise. Specifically, these pads can be filter cotton. When sound waves encounter the filter cotton, they are obstructed and scattered, reducing sound wave transmission and intensity. Combined with the guide part 322, this guides the sound waves, achieving noise reduction.

[0066] In one implementation, such as Figure 1 As shown, the transition portion 323 and / or the blocking portion 321 of the sound guide 32 can be provided with a sound-absorbing pad, which can absorb sound waves of noise to achieve noise reduction. Specifically, the sound-absorbing pad here is a flocked layer, which is achieved by flocking the surfaces of the transition portion 323 and / or the blocking portion 321. The flocking process involves first applying an adhesive to the surface of the transition portion 323 and / or the blocking portion 321, and then using electrostatic action to attach charged fibers to the surface of the transition portion 323 and / or the blocking portion 321, thereby achieving the effect of absorbing sound waves of noise. Combined with the guiding portion 322's function of guiding sound waves of noise, this achieves the effect of noise reduction.

[0067] Furthermore, in this embodiment, the overall size of the mounting cover 31 can be adaptively increased according to the actual application scenario or the needs of different manufacturers, so as to increase the laying range of the sound-absorbing pad. Combined with the guide part 322, this can guide noise waves to the ground 4, further improving the noise reduction effect. For example, taking a square structure as an example, changing the overall size of the mounting cover 31 means changing at least one of its length, width, and height. For instance, if the length direction is parallel to the plane of the blocking part 321, increasing the size in this direction can increase the laying range of the sound-absorbing pad, further improving the noise reduction effect.

[0068] The above is only an example of the mounting cover 31 having a square structure. Technical solutions that increase the overall size to improve the noise reduction effect when the mounting cover 31 has other shapes are also included in the scope of protection of this application.

[0069] This utility model also provides an energy storage cabinet, which, through a noise reduction system located in the direction of sound wave transmission of noise generated by at least one thermal management device, can reduce the noise generated by the thermal management device during operation by blocking or absorbing sound waves in at least one way, thereby reducing the noise generated by the thermal management system during operation.

[0070] The energy storage cabinet provided by this utility model includes a cabinet body 1, a thermal management system, and a noise reduction system 3. It may also include a heat dissipation device, which may be a battery system. Please refer to [reference needed]. Figure 1 .

[0071] The cabinet 1 has an installation cavity, where the battery system and thermal management system are located. The specific form of the installation cavity is not limited and can be square, round, or rectangular, as long as it meets the usage requirements.

[0072] In one embodiment, the battery system may specifically include a battery pack and an energy storage converter. The energy storage converter converts external power and sends it to the battery pack for energy storage and backup. During actual operation, both the battery pack and the energy storage converter require temperature control; that is, their temperatures need to be kept within a certain range to ensure good operating performance and service life.

[0073] The thermal management system is equipped with several thermal management devices 2, which are arranged around the periphery of the battery system to at least regulate the temperature of the battery system. Here, "at least" means that, in addition to regulating the temperature of the battery system, the thermal management system can also regulate the humidity inside the cabinet 1, preventing unsuitable temperature and humidity conditions from affecting the reliable operation and service life of the systems within the cabinet 1.

[0074] In one specific embodiment, the thermal management device 2 includes, but is not limited to, air-cooled devices and liquid-cooled devices, which can regulate the temperature of the battery system in different ways.

[0075] The noise reduction system 3 is positioned along the direction of sound wave propagation of the noise generated by at least one thermal management device 2. Here, the direction of sound wave propagation of the noise generated by the thermal management device 2 is related to the transmission medium. If the transmission medium is air or liquid, it can form a three-dimensional spherical divergent propagation, that is, the sound wave can propagate in multiple directions.

[0076] The noise reduction system 3 can be set at a fixed location to reduce the noise level generated by the thermal management device 2 by weakening the noise at this fixed location. The fixed location can be the location where the noise level is relatively high or any direction where the noise propagates.

[0077] The noise reduction system 3 can also be set in multiple fixed positions to reduce noise from multiple directions at the same time, thereby reducing the noise generated by the thermal management device 2.

[0078] The noise reduction system 3 can be installed at one or more thermal management devices 2, depending on the actual noise reduction requirements. If there are devices with relatively low noise that can be ignored among the multiple thermal management devices 2, then there is no need to install the noise reduction system 3, thus avoiding structural redundancy and space occupation.

[0079] The specific noise reduction system 3 is used to reduce the noise generated by the thermal management device 2 by at least one of blocking sound waves or absorbing sound waves.

[0080] In one implementation, sound waves are blocked by materials with high density, such as soundproof walls with a certain thickness. The higher the density, the greater the mass, and the greater the transmission loss. Consequently, the noise can be reduced after transmission, thus achieving noise reduction.

[0081] In another implementation, sound waves are blocked by means of reflection or transmission after passing through an obstacle, which reduces the propagation of sound waves. This mainly involves intervening in the propagation path of sound waves to reduce noise and achieve the effect of noise reduction.

[0082] In another implementation, sound wave absorption refers to the ability to convert sound wave energy into other forms, thereby reducing the intensity of the sound waves. Specifically, this can be achieved by converting sound wave energy into heat energy through porous confinement or sound-absorbing cotton, thus achieving noise reduction.

[0083] In summary, absorbing sound waves involves energy conversion and achieves noise reduction by decreasing the intensity of the sound waves; blocking sound waves only changes the direction of propagation and achieves noise reduction by directly blocking the propagation path of the sound waves.

[0084] The noise reduction system 3 may specifically include at least one of the three implementation methods described above, such as a soundproof wall. The noise reduction system 3 can effectively reduce the noise generated by the thermal management device 2 during operation, thereby reducing the overall noise generated by the thermal management system and improving the user experience.

[0085] Based on the above embodiments, the cabinet 1 is provided with several air inlets, and at least one air inlet is provided with a noise reduction system 3.

[0086] Taking one specific implementation as an example, a noise reduction system 3 is installed at a certain air inlet location. This air inlet location corresponds to a position where noise is relatively high, so noise reduction is required. Other air inlet locations have relatively low noise, so the noise reduction system 3 is not necessary to reduce usage costs. If the air inlet corresponds to the air intake of the thermal management device 2, then a noise reduction system can be installed between the air inlet and the thermal management device 2.

[0087] In another implementation example, by installing a noise reduction system 3 at each air inlet, noise reduction can be achieved at each air inlet location. With the air inlets corresponding to the air intake of the thermal management device 2, noise reduction can be applied to each thermal management device 2 during operation, thereby achieving an overall noise reduction effect during the operation of the thermal management system and ensuring the reliability and effectiveness of noise reduction.

[0088] In this embodiment, the specific thermal management device 2 can be an air-cooled component. Air is drawn in through the air inlet on the cabinet 1, and the air-cooled component delivers the air with a certain degree of coolness to the battery system location, so as to cool and regulate the battery system through air-cooled heat dissipation.

[0089] In this embodiment, the specific thermal management device 2 can be an air-cooled component. Air enters through the air inlet on the cabinet 1, and the humidity of the air entering the cabinet 1 is reduced after condensation by the condenser. The air with lower relative humidity is then delivered to the battery system location, thereby cooling and regulating the battery system through air-cooling heat dissipation. The air-cooled component may include, but is not limited to, drive components and fans that can drive airflow to achieve air cooling.

[0090] The form of the air inlet is not limited in this embodiment; it can be a single, continuous opening, or it can be a mesh design, such as... Figure 3 As shown, the specific design can be tailored to the actual application scenario.

[0091] In this embodiment, the noise reduction system 3 is located between the air inlet and the thermal management device 2. The location of the noise reduction system 3 should avoid interfering with the thermal management device 2, and should be able to reduce the noise generated by the thermal management device 2 during operation by absorbing or blocking sound waves. The noise reduction system 3 can be installed using the space inside the cabinet 1 or outside the cabinet 1.

[0092] In this embodiment, it should be noted that while the noise reduction system 3 achieves the noise reduction effect, it should avoid interfering with the air intake at the air inlet to avoid generating large wind resistance and affecting the working effect of the thermal management device 2. Specifically, this can be achieved by setting the components of the noise reduction system 3 to avoid the air inlet.

[0093] Based on any of the above embodiments, the noise reduction system 3 includes a mounting cover 31 installed on the cabinet 1 and a plurality of sound guides 32 disposed inside the mounting cover 31. The sound guides 32 can block the sound waves of noise generated by the thermal management device 2 and can direct them toward the direction close to the ground 4.

[0094] Please refer to the following for details. Figure 3 , Figure 4 , Figure 5 The mounting cover 31 is used to fix and install the sound guide 32. The mounting cover 31 can be square, round, or other shapes, without much restriction. The sound guide 32 and the mounting cover 31 can be detachably connected using fasteners such as screws, bolts, and nuts; alternatively, they can be detachably connected using clips, slots, or other components. This detachable connection between the sound guide 32 and the mounting cover 31 allows for easy installation and removal of the sound guide 32 according to actual usage, improving ease of use.

[0095] In this embodiment, the sound guide 32 can achieve noise reduction by changing the direction of sound wave transmission. Specifically, the sound guide 32 blocks the sound waves generated when the thermal management device 2 is operating and guides the sound waves towards the ground 4. Here, "near the ground 4" means, with the cabinet 1 as a reference, this direction is the bottom of the cabinet 1. By guiding the sound waves downward, the noise level that the operator can hear / measure is reduced.

[0096] The noise level that the operator can hear / measure specifically refers to the noise level that the operator can hear / measure at a certain height. Since the sound guide 32 can conduct sound waves downwards, the noise level that the operator can hear / measure at a certain height will be effectively reduced, thus achieving the noise reduction effect.

[0097] Based on any of the above embodiments, please refer to Figure 1 , Figure 5 The sound guide 32 has a plurality of guide portions 322 that are inclined relative to the inner wall of the mounting cover 31. The plurality of guide portions 322 are used to block the sound waves of noise generated by the thermal management device 2 and can direct them toward the direction close to the ground 4.

[0098] In this embodiment, the sound waves of noise generated by the thermal management device 2 are blocked by the guide portion 322 of the sound guide 32, and the sound waves are directed towards the ground 4, so as to reduce the noise level that the operator can hear / measure at a certain height.

[0099] The guide portion 322 is inclined relative to the inner wall of the mounting cover 31. If the mounting cover 31 is square, the inner wall of the mounting cover 31 can be any position of the side wall, bottom wall, or top wall. Specifically, it can guide some of the sound waves that generate noise when the thermal management device 2 is operating through the guide portion 322 of the sound guide 32 installed at any position on the inner wall, and direct the sound waves of the noise towards the ground 4, so as to achieve a noise reduction effect. Here, "some of the sound waves" refers to the sound waves that may not be blocked by the guide portion 322 and propagate directly through the air.

[0100] Based on any of the above embodiments, please refer to Figure 4 , Figure 5 The guide portion 322 is connected to a blocking portion 321 at one end away from the inner wall 311 of the mounting cover 31. The blocking portion 321 extends in a direction perpendicular to the inner wall 311 and is used to block the sound waves from propagating in a direction away from the ground 4.

[0101] Please refer to Figure 1 The extension direction of the blocking part 321 is specifically perpendicular to the inner sidewall 311 and close to the thermal management device 2. Specifically, the extension length of the blocking part 321 can extend to the top of the thermal management device 2 or extend to the opening position of the mounting cover 31. The specific design can be flexibly combined with the actual situation.

[0102] By providing the blocking part 321, as many noise sound waves as possible can be intercepted, allowing more sound waves to be blocked by the guide part 322 and guided to the ground 4, thereby minimizing the noise during operation of the thermal management device 2. Here, intercepting noise sound waves also refers to reducing the amount of noise sound waves transmitted upwards, thereby reducing the noise heard / measured by the operator at a certain height.

[0103] A transition section 323 is connected to one end of the guide section 322 near the inner wall 311. The transition section 323 is fitted into the inner wall 311 and is used to guide sound waves to a position close to the ground 4. It should be noted that if the inner wall 311 is provided with an air inlet, the length of the transition section 323 extending away from the guide section 322 and the size of the transition section 323 must take into account the air inlet to avoid affecting the air intake effect.

[0104] In this embodiment, the transition part 323 is specifically able to cooperate with the guide part 322 to guide the blocked sound waves toward the ground 4, so as to reduce the noise reduction effect when the thermal management device 2 is working by changing the propagation direction of the sound waves.

[0105] Based on any of the above embodiments, at least a portion of the inner wall of the mounting cover 31 and at least one of the sound guide 32 is provided with a sound-absorbing pad for absorbing noise. Specifically, the sound-absorbing pad can convert sound wave energy into other forms, thereby reducing the intensity of the sound waves to achieve a noise reduction effect.

[0106] In this embodiment, at least a portion of the inner wall of the mounting cover 31, i.e., at least a portion of the inner sidewall 311 and the edge sidewall 312, such as a portion of the surface of the inner sidewall 311, the entire surface of the inner sidewall 311, a portion of the surface of the edge sidewall 312, or the entire surface of the edge sidewall 312.

[0107] At least a portion of the sound guide 32 is at least a portion of the position of at least one of the blocking portion 321, the guide portion 322, and the transition portion 323, such as a portion of the surface of the blocking portion 321 or the entire surface of the blocking portion 321.

[0108] The above-mentioned placement examples are merely illustrations. By setting up the sound-absorbing pad, the noise reduction effect can be further optimized while the guide part 322 guides the direction of noise wave transmission, effectively reducing noise and improving the user experience.

[0109] Based on any of the above embodiments, please refer to Figure 5 The sound-absorbing pad is filter cotton, which is arranged on the surface of multiple edge sidewalls 312 that are circumferentially connected to the inner sidewall 311 of the mounting cover 31.

[0110] And / or, the sound-absorbing pad is a flocked layer, which is attached to the surface of the transition portion 323 and / or the blocking portion 321 of the sound guide 32.

[0111] In one embodiment, the sound-absorbing pad is filter cotton. When the sound waves of noise encounter the filter cotton, they will be blocked and scattered, thereby reducing the transmission of sound waves and reducing the intensity of sound waves. Combined with the guide part 322, it can guide the sound waves of noise and achieve the effect of reducing noise.

[0112] In another embodiment, the sound-absorbing pad is specifically a flocked layer, which is achieved by flocking the transition portion 323 and / or the blocking portion 321. Specifically, the flocking process involves first applying an adhesive to the surface of the transition portion 323 and / or the blocking portion 321, and then using electrostatic attraction to attach charged fibers to the surface of the transition portion 323 and / or the blocking portion 321. This absorbs noise waves, and combined with the guiding portion 322's function of guiding the noise waves, it reduces noise.

[0113] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0114] The noise reduction system and energy storage cabinet provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A noise reduction system, characterized in that, include: Mounting cover (31) is arranged in the direction of sound wave transmission of noise generated by thermal management device (2); At least one sound guide (32) is disposed inside the mounting cover (31). The sound guide (32) has a plurality of guide portions (322) that are inclined relative to the inner wall of the mounting cover (31). The plurality of guide portions (322) are used to block the sound waves of noise generated by the thermal management device (2) and to direct them toward the ground (4).

2. The noise reduction system according to claim 1, characterized in that, The mounting cover (31) has an inner sidewall (311) that can be disposed opposite to the thermal management device (2), and a plurality of the sound guides (32) are arranged in the height direction of the inner sidewall (311).

3. The noise reduction system according to claim 2, characterized in that, The guide portion (322) is connected to a blocking portion (321) at one end away from the inner wall (311). The blocking portion (321) extends in a direction perpendicular to the inner wall (311) to block the sound waves from propagating in a direction away from the ground (4). The guide portion (322) is connected to a transition portion (323) at one end near the inner wall (311). The transition portion (323) is fitted to the inner wall (311) and is used to guide the sound waves to a position close to the ground (4).

4. The noise reduction system according to claim 3, characterized in that, It also includes a fixing frame (33), which includes a frame body (332) and connecting parts (331) extending from both sides of the frame body (332). The connecting parts (331) are connected to the mounting cover (31), and a plurality of the sound guides (32) are evenly distributed inside the frame body (332).

5. The noise reduction system according to any one of claims 1 to 4, characterized in that, At least a portion of the inner wall of the mounting cover (31) and the sound guide (32) are provided with sound-absorbing pads, which are used to absorb noise.

6. The noise reduction system according to claim 5, characterized in that, The sound-absorbing pad is a filter cotton, which is arranged on the surface of a plurality of edge sidewalls (312) circumferentially connected to the inner sidewall (311) of the mounting cover (31); And / or, the sound-absorbing pad is a flocked layer, which is attached to the surface of the transition portion (323) and / or the blocking portion (321) of the sound guide (32).

7. An energy storage cabinet, characterized in that, include: The cabinet (1) has a mounting cavity for placing heat dissipation objects; A thermal management system is provided with a plurality of thermal management devices (2), which are arranged on the outer periphery of the heat dissipation object so as to be able to regulate the temperature of the heat dissipation object placed in the mounting cavity; A noise reduction system (3) is provided in the direction of sound wave transmission of noise generated by at least one of the thermal management devices (2), for reducing the noise generated by the thermal management device (2) by blocking and / or absorbing sound waves.

8. The energy storage cabinet according to claim 7, characterized in that, The cabinet (1) is provided with several air inlets, and at least one of the air inlets is provided with the noise reduction system (3).

9. The energy storage cabinet according to claim 8, characterized in that, The noise reduction system (3) is the noise reduction system (3) as described in any one of claims 1 to 6.

10. The energy storage cabinet according to claim 9, characterized in that, It also includes a battery system located within the mounting cavity.

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