Power distribution device and energy storage cabinet power distribution system

Abstract

The utility model discloses a kind of power distribution device and energy storage cabinet power distribution system, by including distribution box, power conversion system module, first noise reduction structure and second noise reduction structure, first noise reduction structure is configured with first sound-absorbing cotton component, second noise reduction structure is configured with second sound-absorbing cotton component, first noise reduction structure and / or second noise reduction structure is configured with ventilation component, ventilation component guides airflow to pass through first noise reduction structure, first sound-absorbing cotton component, power conversion system module and second sound-absorbing cotton component in order from the distribution box side, and flow out from the other side of distribution box. That is, the technical scheme, by setting first noise reduction structure and second noise reduction structure in the air inlet side and air outlet side of power conversion system module, and configuring sound-absorbing cotton component and ventilation component inside, while ensuring the ventilation and heat dissipation efficiency inside system, effectively reduce the noise generated by fan or module operation, especially suitable for the application scene of noise-sensitive residential area or high-end industrial area.

Description

Technical Field

[0001] This utility model relates to the field of charging technology, and in particular to a power distribution device and energy storage cabinet power distribution system. Background Technology

[0002] In existing power distribution systems, air-cooled structures are commonly used to dissipate heat to meet the operational demands of high-power equipment, especially for PCS (Power Conversion System) modules, which typically require forced ventilation via fans. Simultaneously, external split-type air conditioning systems are often used to assist cooling and ensure overall system temperature control. However, the operation of fans and air conditioning equipment, particularly the continuous operation of fans, often generates significant noise, with the decibel level directly correlated with the number of fans and their rotational speed. Improving heat dissipation performance usually requires increasing the number of fans or their rotational speed, which further exacerbates the noise problem.

[0003] Especially in residential areas, high-end industrial areas, or other noise-sensitive application scenarios, the relevant technologies struggle to balance good heat dissipation with noise control, leading to limitations in equipment deployment. Utility Model Content

[0004] The main objective of this invention is to provide a power distribution device and energy storage cabinet power distribution system, so as to at least solve the technical problem of noise control while ensuring good heat dissipation in related technologies.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] In a first aspect, the present invention provides a power distribution device, the power distribution device comprising a power distribution box, a power conversion system module, a first noise reduction structure and a second noise reduction structure;

[0007] The first noise reduction structure, the power conversion system module, and the second noise reduction structure are disposed in the through cavity of the distribution box, with the power conversion system module located between the first noise reduction structure and the second noise reduction structure;

[0008] The first noise reduction structure is equipped with a first sound-absorbing cotton component, and the second noise reduction structure is equipped with a second sound-absorbing cotton component;

[0009] The first noise reduction structure and / or the second noise reduction structure are equipped with a ventilation component, which is used to guide airflow from one side of the power distribution box through the first noise reduction structure, the first sound-absorbing cotton component, the power conversion system module and the second sound-absorbing cotton component in sequence, and out from the other side of the power distribution box.

[0010] A second aspect of this utility model also provides an energy storage cabinet power distribution system, including a cabinet and a power distribution device as described in the first aspect, wherein the power distribution device is built into the cabinet.

[0011] The power distribution device and energy storage cabinet power distribution system of this utility model, by setting a first noise reduction structure and a second noise reduction structure on the air inlet side and air outlet side of the power conversion system module respectively, and configuring sound-absorbing cotton components and ventilation components inside them, can effectively reduce the noise generated by the operation of fans or modules while ensuring the ventilation and heat dissipation efficiency inside the system. It is especially suitable for noise-sensitive application scenarios such as residential areas or high-end industrial areas. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 A three-dimensional schematic diagram of a power distribution device provided in an embodiment of this application;

[0014] Figure 2 A three-dimensional schematic diagram of a power distribution device provided in an embodiment of this application;

[0015] Figure 3 This is a schematic diagram showing the structural breakdown of the first noise reduction structure in the embodiments of this application;

[0016] Figure 4 This is a structural breakdown diagram of the first sound-absorbing cotton component of the first noise reduction structure in the embodiments of this application;

[0017] Figure 5 This is a side view of the first sound-absorbing cotton component assembled in an embodiment of this application;

[0018] Figure 6 This is a schematic diagram of the structure of the first sound-absorbing cotton in the first sound-absorbing cotton assembly in the embodiments of this application;

[0019] Figure 7 This is a structural breakdown diagram of the second sound-absorbing cotton component of the second noise reduction structure in the embodiments of this application.

[0020] Reference numerals: 1. Power distribution device; 2. Power conversion system module; 3. First noise reduction structure; 4. Second noise reduction structure; 5. Ventilation component; 6. First frame body; 7. First sound-absorbing cotton component; 8. Second sound-absorbing cotton component; 9. First air outlet; 10. First air inlet; 11. First sound-absorbing cotton; 12. First metal plate; 13. First metal bracket; 14. Second air inlet; 15. Second air outlet; 16. First ventilation opening; 17. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0022] It should be noted that related terms such as "first" and "second" can be used to describe various components, but these terms do not limit the component. These terms are only used to distinguish one component from another. For example, without departing from the scope of this utility model, the first component can be referred to as the second component, and the second component can similarly be referred to as the first component. The term "and / or" refers to any one or more combinations of related and descriptive terms.

[0023] Please refer to the following in order. Figures 1 to 3 This application provides a power distribution device, including a power distribution box 1, a power conversion system module 2, a first noise reduction structure 3, and a second noise reduction structure 4.

[0024] The distribution box 1 has a cavity, in which the first noise reduction structure 3, the power conversion system module 2, and the second noise reduction structure 4 can all be housed. Within this cavity, the power conversion system module 2 is positioned between the first noise reduction structure 3 and the second noise reduction structure 4. For example, the first noise reduction structure 3 is positioned near the air inlet of the cavity, and the second noise reduction structure 4 is positioned near the air outlet of the cavity, placing the power conversion system module 2 at the center of the airflow path.

[0025] The first noise reduction structure 3 is equipped with a first sound-absorbing cotton component 32, and the second noise reduction structure 4 is equipped with a second sound-absorbing cotton component 42, which are used to absorb and attenuate the noise generated during the airflow process.

[0026] The first noise reduction structure 3 and / or the second noise reduction structure 4 are equipped with a ventilation component 5 (e.g., a fan module). The ventilation component 5 is used to guide airflow from one side of the distribution box 1 through the first noise reduction structure 3, the first sound-absorbing cotton component 32, the power conversion system module 2 and the second sound-absorbing cotton component 42 in sequence, and out from the other side of the distribution box 1. This effectively suppresses the noise generated during the airflow process while ensuring the heat dissipation efficiency of the equipment, and improves the overall quiet performance of the system. It is especially suitable for application environments with strict noise requirements.

[0027] As can be seen, the power distribution device of this application embodiment, by setting a first noise reduction structure and a second noise reduction structure on the air inlet side and the air outlet side of the power conversion system module respectively, and configuring sound-absorbing cotton components and ventilation components inside them, effectively reduces the noise generated by the operation of the fan or module while ensuring the ventilation and heat dissipation efficiency inside the system. It is especially suitable for noise-sensitive application scenarios such as residential areas or high-end industrial areas.

[0028] It should be noted that the power conversion system module 2 is a key electronic power component in the power distribution device, typically including a power controller (PCS) module. This module is responsible for converting electrical energy between different voltage levels, frequencies, or between AC and DC to meet the power supply requirements of the load or energy storage system. The power conversion system module 2 generates significant heat during operation, thus requiring forced cooling through a ventilation structure. Additionally, airflow through this module can easily generate wind noise or structural resonance noise.

[0029] Please see Figure 3 The first noise reduction structure 3 includes a first frame body 31 having a first inner cavity.

[0030] Specifically, the first frame body 31 has a first air inlet 312 on the side near the distribution box 1 to guide external airflow in; and a first air outlet 311 on the opposite side to direct airflow toward the power conversion system module 2. The first inner cavity can be a hollow structure to accommodate the first sound-absorbing cotton assembly 32, ensuring that the airflow passes through multiple layers of sound-absorbing material during its passage, thereby reducing wind noise transmission.

[0031] In this embodiment, the airflow enters the first inner cavity of the first frame body 31 from the outside of the distribution box through the first air inlet 312, passes through the first sound-absorbing cotton assembly 32 in the first inner cavity, realizes the synchronous processing of airflow introduction and noise reduction, and finally flows to the power conversion system module 2 through the first air outlet 311, which enhances the overall sound absorption capacity of the air duct and maintains smooth ventilation.

[0032] Please see Figures 4 to 6 The first sound-absorbing cotton component 32 includes a plurality of first sound-absorbing cotton 321.

[0033] Specifically, multiple first sound-absorbing cotton 321 are arranged linearly in the first inner cavity of the first frame body 31 along the airflow direction, and each first sound-absorbing cotton 321 has a first vent 3211 to allow airflow to pass through.

[0034] To ensure unobstructed airflow and effective noise reduction throughout the first noise reduction structure 3, the first vents 3211 of every two adjacent first sound-absorbing cotton layers 321 correspond to each other in the airflow direction, thus forming a continuous air intake duct within the first inner cavity. This duct allows for continuous airflow as the air passes through the multiple layers of first sound-absorbing cotton layers 321. Furthermore, due to the progressive absorption and reflection of noise by the multi-layered sound-absorbing structure, wind noise interference during overall operation is significantly reduced, effectively balancing heat dissipation and ventilation with quiet operation requirements.

[0035] In an optional embodiment of this application, the first sound-absorbing cotton assembly 32 further includes a plurality of first metal plates 322.

[0036] Specifically, multiple first metal plates 322 and multiple first sound-absorbing cotton 321 are arranged linearly along the airflow direction in the first inner cavity of the first frame body 31 and are spaced apart from each other. Each first metal plate 322 is also provided with a second vent to allow airflow to pass through.

[0037] To ensure a continuous and low-resistance ventilation path as airflow passes through the first sound-absorbing cotton assembly 32, the second vents of adjacent first metal plates 322 and the first vents 3211 of adjacent first sound-absorbing cotton 321 correspond to each other in the airflow direction, thus constructing a through-flow air intake channel within the first inner cavity. This channel maintains smooth airflow while utilizing the reflective effect of the metal plates and the absorption effect of the multiple layers of sound-absorbing cotton to form a composite noise reduction structure. This causes noise signals to be reflected and attenuated multiple times within the channel, effectively reducing the overall noise level and further improving the synergistic performance of the power distribution system in terms of noise reduction and heat dissipation.

[0038] In addition, the first sound-absorbing cotton assembly 32 also includes a first metal bracket 323 forming a first metal inner cavity. This first metal bracket 323 serves as a structural support component, and its internal first metal inner cavity is used to accommodate and fix multiple first metal plates 322 and multiple first sound-absorbing cotton pieces 321. Through the structural support of the first metal bracket 323, the stability of the linear arrangement and spacing of each first metal plate and first sound-absorbing cotton piece in the airflow direction can be ensured, further enhancing the structural integrity and sound absorption effect of the ventilation channel.

[0039] Please see Figure 7 The second noise reduction structure 4 also includes a second frame body 41 with a second inner cavity.

[0040] The second frame body 41 has a second air outlet 412 on the other side near the distribution box 1 for discharging airflow; the second frame body 41 has a second air inlet 411 on the opposite side for receiving airflow from the power conversion system module 2.

[0041] The second inner cavity is used to house the second sound-absorbing cotton assembly 42, which is used to further attenuate the noise of the airflow.

[0042] The second sound-absorbing cotton component 42 includes multiple second sound-absorbing cottons (not shown in the figure) and multiple second metal plates (not shown in the figure).

[0043] Multiple second sound-absorbing cottons are arranged linearly in the second inner cavity along the airflow direction, and each second sound-absorbing cotton is provided with a third vent to allow airflow to pass through smoothly.

[0044] Multiple second metal plates and multiple second sound-absorbing cotton are spaced apart in the second inner cavity, and each second metal plate has a fourth ventilation opening. The fourth ventilation openings of adjacent second metal plates correspond to the third ventilation openings of the corresponding second sound-absorbing cotton in the airflow direction, thereby forming a continuous and through air outlet channel within the second noise reduction structure 4, achieving effective sound absorption and guidance of the exhaust airflow, while ensuring that the overall ventilation and heat dissipation performance of the power distribution system is not affected.

[0045] In addition, the second sound-absorbing cotton assembly also includes a second metal bracket (not shown in the figure) forming a second metal inner cavity. The second metal inner cavity is used to house multiple second metal plates and multiple second sound-absorbing cotton. As a structural load-bearing component, the second metal bracket's inner cavity accommodates and fixes multiple second metal plates and multiple second sound-absorbing cotton, ensuring that the second metal plates and second sound-absorbing cotton maintain a stable linear arrangement and spacing in the airflow direction, further enhancing the structural integrity and sound absorption effect of the air outlet channel.

[0046] It should be noted that the components of the second noise reduction structure 4 (second frame main body, second sound-absorbing cotton component 42, second sound-absorbing cotton, second metal plate, second metal bracket) are structurally identical to the corresponding components of the first noise reduction structure 3 (first frame main body 31, first sound-absorbing cotton component 32, second sound-absorbing cotton 321, second metal plate 322, second metal bracket 323), and will not be described in detail here.

[0047] This application also provides an energy storage cabinet power distribution system, including a cabinet and a power distribution device as described in the above embodiments, wherein the power distribution device is built into the cabinet.

[0048] This application embodiment constructs a complete airflow channel by setting a first noise reduction structure and a second noise reduction structure in the power distribution system device, which enters from one side of the power distribution box, passes through the internal PCS module, and then exits from the other side. This airflow channel consists of an air inlet channel and an air outlet channel, which respectively undertake the functions of airflow introduction and exhaust, and simultaneously achieve noise reduction and heat dissipation in the airflow path.

[0049] On one hand, the air intake channel is formed by a first noise reduction structure. The first noise reduction structure includes a first frame body with a first inner cavity, multiple first sound-absorbing cottons with first vents arranged inside, and first metal plates with second vents spaced apart. These vents correspond to each other in the airflow direction, forming a continuous through-flow channel. The airflow provided by the ventilation components (e.g., fan modules) enters from the first air inlet on one side of the distribution box, and after passing through the reflection and absorption structure formed by the multiple layers of sound-absorbing cotton and metal plates, the high-frequency noise generated by the fan is effectively reduced, while ensuring that cool air enters the system.

[0050] On the other hand, the air outlet duct is formed by a second noise reduction structure, which is similar in construction to the first noise reduction structure. It includes a second frame body with a second inner cavity, multiple second sound-absorbing cottons with third vents, and multiple second metal plates with fourth vents. The adjacent vents are positioned correspondingly, allowing the airflow to be smoothly discharged through the air outlet duct formed by the second sound-absorbing cotton assembly after passing through the power conversion system module, while further attenuating noise and preventing high noise from propagating outward.

[0051] Therefore, the embodiments of this application construct an effective noise reduction path during the airflow process by rationally arranging the air intake and exhaust channels in the power distribution system. While ensuring sufficient heat dissipation of the system, the noise of fan operation and module operation is significantly reduced, meeting the application requirements of residential areas, high-end industrial areas and other places that emphasize both low noise and high thermal performance.

[0052] The specific embodiments of the utility model have been described in detail above, but they are only examples, and the utility model is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications or substitutions to the utility model are also within the scope of the utility model. Therefore, all equivalent transformations, modifications, and improvements made without departing from the spirit and principles of the utility model should be covered within the scope of the utility model.

Claims

1. A power distribution device, characterized in that, The power distribution device includes a power distribution box, a power conversion system module, a first noise reduction structure, and a second noise reduction structure. The first noise reduction structure, the power conversion system module, and the second noise reduction structure are disposed in the through cavity of the distribution box, with the power conversion system module located between the first noise reduction structure and the second noise reduction structure; The first noise reduction structure is equipped with a first sound-absorbing cotton component, and the second noise reduction structure is equipped with a second sound-absorbing cotton component; The first noise reduction structure and / or the second noise reduction structure are equipped with a ventilation component, which is used to guide airflow from one side of the power distribution box through the first noise reduction structure, the first sound-absorbing cotton component, the power conversion system module and the second sound-absorbing cotton component in sequence, and out from the other side of the power distribution box.

2. The power distribution device as described in claim 1, characterized in that, The first noise reduction structure is disposed on the side near the air inlet of the cavity, and the second noise reduction structure is disposed on the side near the air outlet of the cavity.

3. The power distribution device as described in claim 1, characterized in that, The first noise reduction structure also includes a first frame body having a first inner cavity; The first frame body has a first air inlet on the side near the distribution box, and a first air outlet on the opposite side of the frame body. The first inner cavity is used to house the first sound-absorbing cotton assembly.

4. The power distribution device as described in claim 3, characterized in that, The first sound-absorbing cotton assembly includes a plurality of first sound-absorbing cottons; Multiple first sound-absorbing cottons are arranged linearly in the first inner cavity along the airflow direction, and each first sound-absorbing cotton has a first ventilation opening; In this configuration, the first vents of each pair of adjacent first sound-absorbing cotton are aligned with each other in the airflow direction to form a through air intake duct.

5. The power distribution device as described in claim 4, characterized in that, The first sound-absorbing cotton assembly also includes multiple first metal plates; Multiple first metal plates and multiple first sound-absorbing cotton are spaced apart in the first inner cavity, and each first metal plate is provided with a second ventilation opening; The first vent of the adjacent first metal plate and the second vent of the first sound-absorbing cotton correspond to each other in the airflow direction to form a through air intake channel.

6. The power distribution device as described in claim 5, characterized in that, The first sound-absorbing cotton assembly also includes a first metal support having a first metal inner cavity; The first metal cavity is used to house multiple first metal plates and multiple first sound-absorbing cotton.

7. The power distribution device as described in claim 3, characterized in that, The second noise reduction structure also includes a second frame body with a second inner cavity; The second frame body has a second air outlet on the other side near the distribution box, and a second air inlet on the opposite side of the second frame body. The second inner cavity is used to house the second sound-absorbing cotton assembly.

8. The power distribution device as described in claim 7, characterized in that, The second sound-absorbing cotton assembly includes multiple second sound-absorbing cottons and multiple second metal plates; Multiple second sound-absorbing cottons are arranged linearly in the second inner cavity along the airflow direction, and each second sound-absorbing cotton is provided with a third ventilation opening; Multiple second metal plates and multiple second sound-absorbing cotton are spaced apart in the second inner cavity, and each second metal plate is provided with a fourth ventilation opening; The fourth vent of the adjacent second metal plate and the third vent of the second sound-absorbing cotton correspond to each other in the airflow direction to form a through air outlet channel.

9. The power distribution device as described in claim 8, characterized in that, The second sound-absorbing cotton assembly also includes a second metal support having a second metal cavity; The second metal cavity is used to house multiple second metal plates and multiple second sound-absorbing cotton.

10. A power distribution system for an energy storage cabinet, characterized in that, It includes a cabinet and a power distribution device as described in any one of claims 1 to 9, wherein the power distribution device is built into the cabinet.

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