Alternating current inlet wire module and energy storage cabinet

Abstract

The utility model relates to the technical field of energy storage cabinets, in particular to an alternating current inlet wire module and an energy storage cabinet. The AC incoming line module comprises a first mounting plate and an electrical switch unit. The first mounting plate is provided with a first surface and a second surface which are oppositely arranged; the electrical switch unit comprises a mutual inductor and a switch device, the mutual inductor is arranged on the first surface, the switch device is arranged on the second surface, the switch device is used for being electrically connected with an external power supply, and the switch device is used for being electrically connected with a PCS. The mutual inductor and the switch device are arranged on the two opposite surfaces of the first mounting plate respectively, so that the size of the first mounting plate can be reduced, and the integration level of the alternating current incoming line module is improved.

Description

Technical Field

[0001] This application relates to the field of energy storage cabinet technology, and in particular to an AC incoming line module and an energy storage cabinet. Background Technology

[0002] With the transformation of the global energy structure and the rapid development of renewable energy, energy storage technology has become crucial for regulating energy supply and demand and improving energy efficiency. As a core component of energy storage technology, the structure and function of energy storage cabinets are of paramount importance.

[0003] In related technologies, energy storage systems are showing a trend towards high integration, with energy storage cabinets highly integrating key components such as battery modules, PCS (Power Conversion System, the energy conversion system of electrochemical energy storage systems), and liquid cooling systems. This integrated design not only improves the overall efficiency of the energy storage system but also reduces its size. Among these, the AC input module, as an important component of the energy storage cabinet, also needs to increase its integration level to adapt to this trend. Utility Model Content

[0004] The purpose of this application is to provide an AC incoming line module and an energy storage cabinet, which aims to improve the integration of the AC incoming line module and the energy storage cabinet.

[0005] To achieve the above objectives, the technical solution adopted in the first aspect of this application is: an AC incoming line module, including a first mounting plate and an electrical switch unit.

[0006] The first mounting plate has a first surface and a second surface disposed opposite to each other; the electrical switching unit includes a current transformer and a switching device, the current transformer is disposed on the first surface, the switching device is disposed on the second surface, the switching device is used for electrical connection with an external power supply, and the switching device is used for electrical connection with the PCS.

[0007] The beneficial effect of the AC input module provided in the first aspect embodiment of this application is that by respectively setting the current transformer and the switching device on two opposite surfaces of the first mounting plate, the volume of the first mounting plate can be reduced, thereby improving the integration of the AC input module.

[0008] In some embodiments, the AC input module further includes a first terminal block, one end of which is electrically connected to the switching device, the other end of which is located on the side of the first surface opposite to the second surface, and the first terminal block is used for electrical connection with the PCS.

[0009] In some embodiments, the first wiring terminal comprises a first connecting part, a second connecting part and a third connecting part connected in sequence, the first connecting part, the second connecting part and the third connecting part enclose a avoiding slot, part of the first mounting plate is located in the avoiding slot, the first connecting part is located on the side of the first surface away from the second surface, and the first connecting part is used for electrically connecting with the PCS, the third connecting part is located on the side of the second surface away from the first surface, and the third connecting part is electrically connected with the switch device.

[0010] In some embodiments, the first mounting plate is provided with a fixing column.

[0011] The fixing column is arranged on the first surface, and the first connecting part is fixed on the fixing column by a locking member.

[0012] And / or, the fixing column is arranged on the second surface, and the third connecting part is fixed on the fixing column by a locking member.

[0013] In some embodiments, the first wiring terminal is provided with a plurality of, the switch device and / or the first mounting plate is provided with a first insulating plate, and the first insulating plate is arranged between adjacent first connecting parts.

[0014] In some embodiments, the mutual inductor is provided with three, and the three mutual inductors are respectively a first mutual inductor, a second mutual inductor and a third mutual inductor, the first mutual inductor and the second mutual inductor are distributed in a first direction, the third mutual inductor is located between the first mutual inductor and the second mutual inductor, and the third mutual inductor is arranged at an angle with the distribution direction of the first mutual inductor and the first direction.

[0015] In some embodiments, the AC line-in module further comprises a second mounting plate, and the second mounting plate is arranged on the first surface, and the mutual inductor is arranged on the second mounting plate.

[0016] In some embodiments, the AC line-in module further comprises a second wiring terminal, the second wiring terminal is located on the side of the second surface away from the first surface, the second wiring terminal is electrically connected with the switch device, and the second wiring terminal is used for connecting with an external power supply.

[0017] In some embodiments, the second wiring terminal is provided with a plurality of, the switch device and / or the first mounting plate is provided with a second insulating plate, and the second insulating plate is arranged between adjacent second wiring terminals.

[0018] To achieve the above object, the technical scheme adopted by the second aspect embodiment of the present application is: an energy storage cabinet, comprising a PCS and an AC line-in module of the first aspect embodiment described above.

[0019] The PCS comprises a wiring cable, which penetrates the mutual inductor and is electrically connected with the switch device.

[0020] The energy storage cabinet provided by the second aspect of the embodiment has the beneficial effect that the integration of the energy storage cabinet can be improved by applying the AC incoming line module of the first aspect of the embodiment to the energy storage cabinet. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0022] Figure 1 is a structure diagram of an AC incoming line module in one of the embodiments of the present application;

[0023] Figure 2 is Figure 1 is another view of the structure of the AC incoming line module shown in the figure.

[0024] Reference signs:

[0025] 1, first mounting plate; 11, first surface; 12, second surface; 13, fixed column;

[0026] 2, electrical switch unit; 21, mutual inductor; 21a, first mutual inductor; 22b, second mutual inductor; 22c, third mutual inductor; 22, switch device; 221, first insulating plate; 222, second insulating plate;

[0027] 3, first wiring terminal; 31, first connecting part; 32, second connecting part; 33, third connecting part; 34, avoiding slot;

[0028] 4, second mounting plate; 41, support part; 42, locking part;

[0029] 5, second wiring terminal;

[0030] 6, tooth hole. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present application more clear, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0032] It is to be noted that when an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or indirectly connected to the other element.

[0033] In addition, the terms "first", "second", "third", etc. are used herein only to describe different instances, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "plurality" is two or more, unless otherwise specifically limited.

[0034] In the description of the present application, the reference to "one embodiment", "some embodiments" or "embodiments" means that the specific features, structures or characteristics described in connection with the embodiment are included in one or more embodiments of the present application. Therefore, the statements "in one embodiment", "in some embodiments", "in other some embodiments", "in other embodiments" and the like appearing in different places in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized. In addition, in one or more embodiments, specific features, structures or characteristics can be combined in any suitable manner.

[0035] With the transformation of global energy structure and the rapid development of renewable energy, energy storage technology has become the key to regulating energy supply and demand and improving energy utilization efficiency. As a core component of energy storage technology, the structure and function of the energy storage cabinet are particularly important.

[0036] In the related art, the energy storage system shows a trend of high integration, and the energy storage cabinet highly integrates key components such as battery modules, PCS (Power Conversion System, energy conversion system of electrochemical energy storage system) and liquid cooling system. This integrated design not only improves the overall efficiency of the energy storage system, but also reduces the volume of the energy storage system. Among them, the AC incoming line module as an important part of the energy storage cabinet also needs to improve the integration to adapt to this integration trend.

[0037] In view of the above problems, the embodiments of the present application provide an AC incoming line module and an energy storage cabinet, which aims to improve the integration of the AC incoming line module and the energy storage cabinet.

[0038] In order to illustrate the technical solutions of the present application, the specific embodiments and drawings will be described below.

[0039] It should be noted that the energy storage cabinet includes a frame, a plurality of installation compartments are separated in the frame, and the battery module, the PCS, and the liquid cooling system and other key components are respectively accommodated in the installation compartments and fixed on the frame through locking members (such as screws, bolts, bolts, etc.). The AC incoming line module in the energy storage cabinet is fixed on the frame through locking members (such as screws, bolts, bolts, etc.), and the AC incoming line module is located on the side of the PCS and electrically connected with the PCS. The AC incoming line module is also used for electrically connecting with the external power supply.

[0040] Please refer to Figure 1 The AC incoming line module provided by the embodiment of the present application comprises a first mounting plate 1 and an electrical switch unit 2.

[0041] The first mounting plate 1 has a first surface 11 and a second surface 12 arranged oppositely. The electrical switch unit 2 comprises a mutual inductor 21 and a switch device 22. The mutual inductor 21 is arranged on the first surface 11, and the switch device 22 is arranged on the second surface 12. The switch device 22 is used for electrically connecting with the external power supply and electrically connecting with the PCS.

[0042] In the AC incoming line module provided by the first aspect of the present application, the mutual inductor 21 and the switch device 22 are arranged on the two opposite surfaces of the first mounting plate 1 respectively, so that the volume of the first mounting plate 1 can be reduced, and the integration of the AC incoming line module can be improved.

[0043] It should be noted that the switch device 22 can cut off and connect the AC circuit, and ensure the safe operation of the AC circuit in the AC incoming line module. Optionally, the switch device 22 can be an AC circuit breaker or a fuse.

[0044] It should be noted that the function of the mutual inductor 21 is to change high voltage into low voltage and large current into small current, so as to measure the voltage or current in the AC circuit in the AC incoming line module, and also to protect the AC circuit in the AC incoming line module.

[0045] In the energy storage cabinet, the wiring cable in the PCS is electrically connected with the switch device 22 through the mutual inductor 21.

[0046] It should be noted that generally, in the energy storage cabinet, the mutual inductor 21 in the AC incoming line module faces the internal space of the energy storage cabinet, and the switch device 22 in the AC incoming line module faces the space outside the energy storage cabinet, so as to facilitate the user to observe the working state of the switch device 22, and also facilitate the user to open or close the switch device 22, so as to ensure the safe operation of the AC circuit in the AC incoming line module.

[0047] Please refer to Figure 1 and Figure 2In some embodiments, the AC incoming line module further comprises a first wiring terminal 3, one end of the first wiring terminal 3 is electrically connected with the switch device 22, and the other end of the first wiring terminal 3 is located on the side of the first surface 11 away from the second surface 12, and the first wiring terminal 3 is used for electrically connecting with the PCS.

[0048] It should be noted that, for the convenience of installation, before the AC incoming line module is installed on the frame, the wiring cable in the PCS is first passed through the mutual inductor 21 and connected with the switch device 22, and then the first mounting plate 1 is installed on the frame by locking members (such as screws, bolts, bolts, etc.).

[0049] In the above embodiment, by arranging the first wiring terminal 3 and electrically connecting one end of the first wiring terminal 3 with the switch device 22, the wiring cable in the PCS can be indirectly electrically connected with the switch device 22 through the first wiring terminal 3 by electrically connecting the wiring cable in the PCS with the first wiring terminal 3. And the other end of the first wiring terminal 3 is located on the side of the first surface 11 away from the second surface 12, so that the connection between the AC incoming line module and the wiring cable in the PCS is located on the side of the first surface 11 of the first mounting plate 1 away from the second surface 12, without the wiring cable in the PCS winding around the first mounting plate 1, on the one hand, facilitating the electrical connection between the AC incoming line module and the wiring cable in the PCS, and on the other hand, making the distribution of the wiring cable in the PCS more reasonable, which can reduce the risk of mutual entanglement of the wiring cable in the PCS, increase the aesthetic appearance, and also reduce the risk of wear and tear of the wiring cable in the PCS, and the disassembly and maintenance are also more convenient.

[0050] It should be noted that the first wiring terminal 3 is a copper bar, which not only has good electrical conductivity, but also has a certain strength, that is, the first wiring terminal 3 is not easy to deform, so as to improve the stability of the structure of the AC incoming line module.

[0051] Please refer to Figure 2 In some embodiments, the end of the first wiring terminal 3 away from the switch device 22 is provided with a tooth hole 6, and the wiring cable in the PCS can pass through the tooth hole 6 to facilitate the connection between the wiring cable in the PCS and the first wiring terminal 3.

[0052] Please refer to Figure 1 and Figure 2In some embodiments, the first wiring terminal 3 comprises a first connecting portion 31, a second connecting portion 32 and a third connecting portion 33 connected in sequence, the first connecting portion 31, the second connecting portion 32 and the third connecting portion 33 enclose a clearance 34, part of the first mounting plate 1 is located in the clearance 34, the first connecting portion 31 is located on the side of the first surface 11 away from the second surface 12, and the first connecting portion 31 is used for electrical connection with the PCS, the third connecting portion 33 is located on the side of the second surface 12 away from the first surface 11, and the third connecting portion 33 is electrically connected with the switch device 22.

[0053] In the above embodiment, the first wiring terminal 3 is located on the side of the first mounting plate 1, and when connecting the first wiring terminal 3 and the switch device 22, it is convenient for the assembler to hold the first wiring terminal 3.

[0054] Please refer to Figure 1 and Figure 2 In some embodiments, the first mounting plate 1 is provided with a fixing column 13; the fixing column 13 is arranged on the first surface 11, and the first connecting portion 31 is fixed on the fixing column 13 by a locking member (such as a screw, a bolt, a bolt, etc.); and / or, the fixing column 13 is arranged on the second surface 12, and the third connecting portion 33 is fixed on the fixing column 13 by a locking member.

[0055] Through the above arrangement, the fixing column 13 can support the first connecting portion 31 and / or the third connecting portion 33, and the first connecting portion 31 and / or the third connecting portion 33 fixed on the fixing column 13 by the locking member can increase the strength of the first connecting portion 31 and / or the third connecting portion 33, so as to reduce the risk of bending deformation or even breaking of the first connecting portion 31 and / or the third connecting portion 33 due to collision or the like, thereby ensuring the stability of the structure and function of the AC line-in module.

[0056] In some embodiments, the fixing column 13 is an insulating column.

[0057] Please refer to Figure 1 In some embodiments, the first wiring terminal 3 is provided with a plurality of first wiring terminals 3, and the switch device 22 and / or the first mounting plate 1 is provided with a first insulating plate 221, and the first insulating plate 221 is arranged between adjacent first connecting portions 31.

[0058] Through the above arrangement, on the one hand, it is convenient to position the first wiring terminal 3 at a predetermined position, so as to facilitate the connection of the first wiring terminal 3 and the switch device 22; on the other hand, the first insulating plate 221 can prevent short circuit between adjacent first connecting portions 31.

[0059] It should be noted that the number of transformers 21 can be selected according to the number of wiring cables in the PCS. Generally, the wiring cables in the PCS have three, and the AC incoming line module is provided with three transformers 21, and the first wiring terminal 3 is provided with three. It should be noted that please refer to Figure 2 , the switch device 22 is provided with two first insulation plates 221, and the three first wiring terminals 3 are separated by the two first insulation plates 221.

[0060] Please refer to Figure 2 , in some embodiments, the transformer 21 is provided with three, the three transformers 21 are respectively the first transformer 21a, the second transformer 21b and the third transformer 21c, the first transformer 21a and the second transformer 21b are distributed in the first direction (the X direction in the figure), and the third transformer 21c is located between the first transformer 21a and the second transformer 21b, and the distribution direction of the third transformer 21c and the first transformer 21a is arranged at an angle with the first direction.

[0061] Through the above arrangement, the three transformers 21 are staggered, so that the three transformers 21 can be distributed in a limited space to improve the integration of the AC incoming line module. Moreover, the staggered distribution of the three transformers 21 also facilitates heat dissipation of the transformers 21.

[0062] Please refer to Figure 2 , in some embodiments, the AC incoming line module further comprises a second mounting plate 4, the second mounting plate 4 is arranged on the first surface 11, and the transformer 21 is arranged on the second mounting plate 4.

[0063] It should be noted that in the distribution direction of the first surface 11 and the second surface 12 (the Y direction in the figure), the switch device 22 and the transformer 21 are at least partially arranged opposite to each other, so as to minimize the first mounting plate 1 as much as possible. In the embodiment of the present application, the switch device 22 is directly fixed on the first mounting plate 1 by locking members (such as screws, bolts, bolts, etc.).

[0064] Through the above arrangement, the transformer 21 can be installed on the second mounting plate 4 by the locking member first, and then the second mounting plate 4 can be installed on the first mounting plate 1 by the locking member, so that the locking member locking the second mounting plate 4 can avoid the switch device 22, so as to prevent the switch device 22 from being damaged by the locking member.

[0065] Please refer to Figure 2 , in some embodiments, the second mounting plate 4 comprises a support part 41 and a locking part 42 connected to each other, one end of the locking part 42 is fixed on the second mounting plate 4 by a locking member, the support part 41 is located on the side of the second surface 12 away from the first surface 11, and the support part 41 is arranged spaced apart from the first mounting plate 1, and the transformer 21 is installed on the support part 41.

[0066] Through the above setting, the mutual inductor 21 can be cooled.

[0067] Please refer to Figure 2 In some embodiments, the second mounting plate 4 comprises a support portion 41 and two locking portions 42, the two locking portions 42 are fixed on the second mounting plate 4 by locking members, and the two locking portions 42 are spaced apart, and the support portion 41 is connected with the two locking portions 42.

[0068] Through the above setting, the position of the support portion 41 can be stably supported, so as to improve the structural stability of the second mounting plate 4.

[0069] Please refer to Figure 1 In some embodiments, the AC incoming line module further comprises a second wiring terminal 5, the second wiring terminal 5 is located on the side of the second surface 12 away from the first surface 11, the second wiring terminal 5 is electrically connected with the switch device 22, and the second wiring terminal 5 is used for connecting with an external power supply.

[0070] In the above embodiment, by setting the second wiring terminal 5, and one end of the second wiring terminal 5 is electrically connected with the switch device 22, and the other end of the second wiring terminal 5 is used for electrically connecting with the external power supply, so that the switch device 22 can be indirectly electrically connected with the external power supply through the second wiring terminal 5.

[0071] It should be noted that the second wiring terminal 5 is a copper bar, the second wiring terminal 5 not only has good conductivity, but also has a certain strength, that is, the second wiring terminal 5 is not easy to deform, so as to improve the stability of the structure of the AC incoming line module.

[0072] Please refer to Figure 1 In some embodiments, the end of the second wiring terminal 5 away from the switch device 22 is provided with a tooth hole 6, and the cable in the external power supply can pass through the tooth hole 6, so as to facilitate the connection between the cable in the external power supply and the second wiring terminal 5.

[0073] Please refer to Figure 1 In some embodiments, a plurality of second wiring terminals 5 are provided, and a second insulating plate 222 is provided on the switch device 22 and / or the first mounting plate 1, and the second insulating plate 222 is arranged between adjacent second wiring terminals 5.

[0074] Through the above setting, on the one hand, the second wiring terminal 5 can be positioned at a predetermined position, so as to facilitate the connection between the second wiring terminal 5 and the switch device 22; on the other hand, the second insulating plate 222 can prevent short circuit between adjacent second wiring terminals 5.

[0075] Generally, three second wiring terminals 5 are provided. It should be noted that please refer to Figure 1The switch device 22 is provided with two second insulation plates 222, and the three second connection terminals 5 are separated by the two second insulation plates 222.

[0076] To achieve the above object, a second aspect of the present application adopts the technical solution of a kind of energy storage cabinet, comprising PCS and the AC incoming line module of the first aspect of the above embodiment.

[0077] The PCS includes a wiring cable, the wiring cable penetrates the mutual inductor 21, and the wiring cable is electrically connected with the switch device 22.

[0078] By applying the AC incoming line module of the first aspect of the above embodiment to the energy storage cabinet, the integration of the energy storage cabinet can be improved.

[0079] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for some technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. An AC input module, characterized in that, The AC incoming line module comprises: a first mounting plate having oppositely arranged first and second surfaces; an electrical switch unit comprising a transformer and a switch device, the transformer being arranged on the first surface, the switch device being arranged on the second surface, the switch device being electrically connected with an external power supply and the switch device being electrically connected with a PCS.

2. The AC line module of claim 1, wherein, The AC incoming line module further comprises a first wiring terminal, one end of the first wiring terminal being electrically connected with the switch device, the other end of the first wiring terminal being located on the side of the first surface away from the second surface, and the first wiring terminal being electrically connected with the PCS.

3. The AC line module of claim 2, wherein, The first wiring terminal comprises a first connecting portion, a second connecting portion and a third connecting portion connected in sequence, and the first connecting portion, the second connecting portion and the third connecting portion enclose a clearance, part of the first mounting plate being located in the clearance, the first connecting portion being located on the side of the first surface away from the second surface and being electrically connected with the PCS, and the third connecting portion being located on the side of the second surface away from the first surface and being electrically connected with the switch device.

4. The AC line module of claim 3, wherein, The first mounting plate is provided with a fixing column; The fixing column is arranged on the first surface, and the first connecting portion is fixed on the fixing column by a locking member; And / or, the fixing column is arranged on the second surface, and the third connecting portion is fixed on the fixing column by a locking member.

5. The AC line module of claim 3, wherein, The first wiring terminal is provided with a plurality of first wiring terminals, and the switch device and / or the first mounting plate is provided with a first insulating plate arranged between adjacent first connecting portions.

6. The AC line module of any of claims 1-5, wherein, The transformer is provided with three transformers, i.e., a first transformer, a second transformer and a third transformer, the first transformer and the second transformer being distributed at intervals in a first direction, the third transformer being located between the first transformer and the second transformer, and the third transformer being arranged at an angle with the distribution direction of the first transformer and the first direction.

7. The AC line module of any of claims 1-5, wherein, The AC incoming line module further comprises a second mounting plate, the second mounting plate being arranged on the first surface, and the transformer being arranged on the second mounting plate.

8. The AC line module of any of claims 1-5, wherein, The AC incoming line module further comprises a second wiring terminal, the second wiring terminal being located on the side of the second surface away from the first surface, the second wiring terminal being electrically connected with the switch device, and the second wiring terminal being electrically connected with the external power supply.

9. The AC line module of claim 8, wherein, The second wiring terminal is provided with a plurality of second wiring terminals, and the switch device and / or the first mounting plate is provided with a second insulating plate arranged between adjacent second wiring terminals.

10. An energy storage cabinet characterized by, The AC incoming line module comprises: The AC incoming line module according to any one of claims 1 to 9; The PCS comprises a wiring cable, the wiring cable penetrating through the transformer, and the wiring cable being electrically connected with the switch device.

Images