Converter and energy storage equipment

Abstract

The utility model discloses a converter and an energy storage device, and belongs to the technical field of electrical equipment, two ends of a housing are respectively provided with an air inlet and an air outlet which are communicated with the interior of the housing, and a laminate is arranged in the housing to divide the internal space of the housing into a first chamber and a second chamber. The air inlet and the air outlet can perform active heat dissipation on the first chamber and / or the second chamber, the electronic components can be arranged in the first chamber and / or the second chamber according to needs, the electronic components in partition layout can perform more efficient heat dissipation, and the internal space of the shell is divided by the laminates, so that the heat dissipation efficiency of the electronic components can be improved, and the heat dissipation efficiency of the electronic components can be improved. And various electronic components can be arranged in different areas, so that the converter is convenient to install or maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power equipment, in particular to a converter and energy storage equipment. Background Art

[0002] In the field of modern power electronics technology, the converter is a key device for power conversion, and its performance and reliability are directly related to the operating efficiency and stability of the entire system. The electronic components inside the existing converter, including but not limited to power semiconductor modules, capacitors, control circuit boards, etc., are generally integrated and installed in a closed hollow box. Since the functions of the electronic components inside the converter are different, the heat power generated when they work is different. For example, power semiconductors will generate a lot of heat energy during high-frequency switching, while the heat generated by the control circuit board is relatively limited in comparison. This inconsistent heat generation characteristic creates a more complex thermal environment inside the box, which can easily lead to local overheating, affecting the life of electronic components and system stability. The densely stacked electronic component structure seriously hinders the air flow, so the heat dissipation airflow becomes turbulent, making it difficult to form an effective natural convection or forced air cooling path, exacerbating the problem of component overheating.

[0003] In addition, the inconvenience of maintenance and inspection is also a major drawback of the existing design: if an electronic component fails and needs to be repaired or replaced, since all the components are compactly arranged, it is often necessary to disassemble multiple fault-free components to access the target location, which is time-consuming and increases the risk of misoperation, affecting the maintenance efficiency of the equipment. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a converter and an energy storage device to solve the problems of poor heat dissipation and difficult maintenance of the current converter.

[0005] The purpose of the utility model is achieved by the following technical solutions:

[0006] A converter, comprising:

[0007] A shell having an air inlet and an air outlet connected to the inside thereof, wherein the air inlet and the air outlet are respectively located at two ends of the shell;

[0008] a layer plate located in the shell, the layer plate dividing the interior of the shell into a first chamber and a second chamber, one of the air inlet and the air outlet is located in the first chamber, and the other is located in the second chamber, or both the air inlet and the air outlet are located in the second chamber;

[0009] The electronic components are fixed on the layer board or the shell, and the electronic components are located in the first chamber and / or the second chamber.

[0010] Preferably, the electronic components include a capacitor component, an IGBT component and an auxiliary component which are sequentially arranged on the layer plate and located in the first chamber, the capacitor component is close to one end of the shell where the air inlet is provided, the auxiliary component is close to one end of the shell where the air outlet is provided, and the auxiliary component includes a monitoring component and an auxiliary power supply and a DC component respectively located on both sides of the monitoring component.

[0011] Preferably, the auxiliary component further comprises a DC fuse arranged adjacent to the DC component, and / or,

[0012] The auxiliary assembly also includes an AC fuse disposed adjacent to the auxiliary power source.

[0013] Preferably, an AC interface and a DC interface are provided at the end of the shell, and a first conductive plate and a second conductive plate both parallel to the layer plate are provided in the first chamber, the two ends of the first conductive plate are respectively connected to the DC interface and the DC fuse, and the two ends of the second conductive plate are respectively connected to the AC interface and the AC fuse.

[0014] Preferably, the electronic components include an inductor component and a power regulating component fixed to the shell and located in the second chamber, the inductor component is close to the end of the shell where the air inlet is provided, and the power regulating component is located at the end of the shell where the air outlet is provided.

[0015] Preferably, a heat sink is further provided in the housing, the heat sink is located between the air inlet and the inductor component, and the heat sink is connected to the IGBT component.

[0016] Preferably, a plurality of first cooling fans located in the first chamber are provided on the layer plate, and the air inlet and the air outlet are both located in the second chamber.

[0017] Preferably, the air inlet is provided with a second cooling fan.

[0018] Preferably, one end of the shell where the air inlet is provided has a hanging ear.

[0019] In order to solve the same technical problem, the utility model also provides an energy storage device, including the converter as described above.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] Both ends of the shell are respectively provided with an air inlet and an air outlet connected to the interior thereof, and a layer plate is arranged in the shell to divide the internal space of the shell into a first chamber and a second chamber. The air inlet and the air outlet can actively dissipate heat to the first chamber and / or the second chamber, and the electronic components can be arranged in the first chamber and / or the second chamber as required. The zoned layout of the electronic components can dissipate heat more efficiently, and the layer plates dividing the internal space of the shell can not only improve the heat dissipation efficiency of each electronic component, but also arrange various electronic components in different areas, which is convenient for the installation or maintenance of the inverter. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the converter of the utility model;

[0023] Figure 2 It is a three-dimensional cross-sectional schematic diagram of the converter of the utility model;

[0024] Figure 3 It is a schematic diagram of the structural layout of the first chamber of the converter of the utility model;

[0025] Figure 4 It is a side cross-sectional schematic diagram of the converter of the utility model;

[0026] In the figure: 10, shell; 11, air inlet; 12, air outlet; 13, first chamber; 14, second chamber; 15, AC interface; 16, DC interface; 17, first cooling fan; 18, second cooling fan; 19, mounting ears; 20, layer board; 30, electronic components; 31, capacitor component; 32, IGBT component; 33, monitoring component; 34, auxiliary power supply; 35, DC component; 36, DC fuse; 37, AC fuse; 38, inductor component; 39, power adjustment component; 40, first conductive plate; 50, second conductive plate; 60, heat sink. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] Example 1

[0031] Combination Figures 1 to 4 As shown, the converter of the utility model is schematically shown, including a housing, a layer plate and electronic components.

[0032] The shell has an air inlet and an air outlet connected to the inside thereof, and the air inlet and the air outlet are respectively located at the two ends of the shell. The air inlet is used to introduce cold air from the outside into the inside of the shell, and the air outlet is used to discharge hot air from the inside of the shell to the outside. The air inlet and the air outlet are respectively located at the two ends of the shell to avoid the mutual influence of the air inlet and exhaust air flow. In addition, the end of the shell provided with the air inlet has a hanging ear, which can facilitate the installation and maintenance personnel to push the shell and install the shell into the existing cabinet.

[0033] The layer plate is located in the shell, and the layer plate divides the interior of the shell into a first chamber and a second chamber, and one of the air inlet and the air outlet is located in the first chamber, and the other is located in the second chamber. Alternatively, the air inlet and the air outlet are both located in the second chamber. The air inlet and the air outlet can actively dissipate heat for the first chamber and / or the second chamber. In this embodiment, the air inlet and the air outlet are both located in the second chamber.

[0034] The electronic components are fixed on the shelf or the shell. There can be multiple types of electronic components. The electronic components are located in the first compartment and / or the second compartment. Different types of electronic components can be placed in the first compartment and the second compartment, respectively. For example, electronic components with high heat generation are placed in the second compartment, and electronic components with low heat generation are placed in the first compartment. The partitioned arrangement of electronic components can dissipate heat more efficiently. At the same time, the partitioned arrangement of electronic components is also beneficial to the installation and maintenance of the inverter.

[0035] Specifically, Figure 2 and Figure 3The electronic components include a capacitor component, an IGBT component and an auxiliary component which are sequentially arranged on the layer plate and located in the first chamber. The capacitor component is close to one end of the housing where the air inlet is arranged, and the auxiliary component is close to one end of the housing where the air outlet is arranged. Among them, the IGBT component (Insulated Gate Bipolar Transistor) combines the advantages of the power transistor (Giant Transistor—GTR) and the power field effect transistor (Power MOSFET) and has good characteristics.

[0036] The auxiliary components include a monitoring component and an auxiliary power supply and a DC component located on both sides of the monitoring component. The monitoring component, the auxiliary power supply and the DC component are arranged in parallel, and the distance between the three and the IGBT component is consistent. The auxiliary components include a DC fuse arranged adjacent to the DC component and an AC fuse arranged adjacent to the auxiliary power supply. The capacitor component, IGBT component, monitoring component, auxiliary power supply and DC component each have their own circuit boards, and each circuit board is connected to the layer board. The capacitor component, IGBT component, monitoring component, auxiliary power supply and DC component are arranged in different areas for easy identification and maintenance.

[0037] An AC interface and a DC interface are provided at the end of the shell, and a first conductive plate and a second conductive plate which are both parallel to the layer plate are provided in the first chamber, the two ends of the first conductive plate are respectively connected to the DC interface and the DC fuse, and the two ends of the second conductive plate are respectively connected to the AC interface and the AC fuse. The first conductive plate is used for the electrical connection between the DC interface and the DC fuse, and the second conductive plate is used for the electrical connection between the AC interface and the AC fuse. In this embodiment, the first conductive plate and the second conductive plate are preferably copper busbars.

[0038] In order to avoid heat accumulation in the first chamber, a plurality of first cooling fans located in the first chamber are provided on the shelf, and preferably there are two first cooling fans, wherein the exhaust port of one first cooling fan faces the monitoring component, and the exhaust port of the other first cooling fan faces the DC fuse. The first cooling fan can disturb the air in the first chamber to avoid heat accumulation.

[0039] Further, such as Figure 2 and Figure 4The electronic components include an inductor component and a power regulating component fixed to the housing and located in the second compartment. The inductor component is close to one end of the housing where an air inlet is provided, and the power regulating component is located at one end of the housing where an air outlet is provided. The air inlet is provided with a second cooling fan, and the second cooling fan can actively transport air to the inductor component and the power regulating component. The inductor component and the power regulating component have greater heat generation power than the other electronic components mentioned above, so the inductor component and the power regulating component are arranged in the second compartment with active heat dissipation function. A radiator is also provided in the second compartment, and the radiator is located between the air inlet and the inductor component. The radiator is connected to the IGBT component, so the heat generated by the IGBT component can be dissipated to the second compartment through the radiator and actively dissipated by the second cooling fan.

[0040] Example 2

[0041] This embodiment provides an energy storage device, including the above-mentioned converter, which is an important component of current energy storage devices. The DC interface of the converter can be connected to a battery or a capacitor through a cable, and the AC interface of the converter can be connected to an existing power grid through a cable.

[0042] To summarize, both ends of the shell are respectively provided with an air inlet and an air outlet connected to the interior thereof, and a layer plate is arranged in the shell to divide the internal space of the shell into a first chamber and a second chamber, and the air inlet and the air outlet can actively dissipate the heat of the first chamber and / or the second chamber, and the electronic components can be arranged in the first chamber and / or the second chamber as needed. The zoned layout of the electronic components can dissipate heat more efficiently, and the layer plates dividing the internal space of the shell can not only improve the heat dissipation efficiency of each electronic component, but also arrange various electronic components in different areas, which is convenient for the installation or maintenance of the inverter.

[0043] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A converter, characterized in that: include: A shell having an air inlet and an air outlet connected to the inside thereof, wherein the air inlet and the air outlet are respectively located at two ends of the shell; a layer plate located in the shell, the layer plate dividing the interior of the shell into a first chamber and a second chamber, one of the air inlet and the air outlet is located in the first chamber, and the other is located in the second chamber, or both the air inlet and the air outlet are located in the second chamber; The electronic components are fixed on the layer board or the shell, and the electronic components are located in the first chamber and / or the second chamber.

2. The converter according to claim 1, characterized in that: The electronic components include a capacitor component, an IGBT component and an auxiliary component which are sequentially arranged on the layer plate and located in the first chamber, the capacitor component is close to one end of the shell where the air inlet is arranged, the auxiliary component is close to one end of the shell where the air outlet is arranged, and the auxiliary component includes a monitoring component and an auxiliary power supply and a DC component respectively located on both sides of the monitoring component.

3. The converter according to claim 2, characterized in that: The auxiliary assembly further comprises a DC fuse arranged adjacent to the DC component, and / or, The auxiliary assembly also includes an AC fuse disposed adjacent to the auxiliary power source.

4. The converter according to claim 3, characterized in that: An AC interface and a DC interface are provided at the end of the shell, and a first conductive plate and a second conductive plate, both parallel to the layer plate, are provided in the first chamber, two ends of the first conductive plate are respectively connected to the DC interface and the DC fuse, and two ends of the second conductive plate are respectively connected to the AC interface and the AC fuse.

5. The converter according to claim 2, characterized in that: The electronic components include an inductor component and a power regulating component fixed to the shell and located in the second chamber, the inductor component is close to the end of the shell where the air inlet is provided, and the power regulating component is located at the end of the shell where the air outlet is provided.

6. The converter according to claim 5, characterized in that A heat sink is also provided in the shell, and the heat sink is located between the air inlet and the inductor component, and the heat sink is connected to the IGBT component.

7. The converter according to claim 1, characterized in that: The layer plate is provided with a plurality of first cooling fans located in the first chamber, and the air inlet and the air outlet are both located in the second chamber.

8. The converter according to any one of claims 1 to 7, characterized in that: The air inlet is provided with a second heat dissipation fan.

9. The converter according to claim 1, characterized in that: One end of the shell body where the air inlet is provided has a hanging ear.

10. An energy storage device, characterized in that: Comprising the converter according to any one of claims 1 to 9.

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