Power distribution unit and charging pile
By adopting a ring-structured topology strategy and contactor connection in the charging stack, the problem of inflexible power distribution in the charging module is solved, flexible power scheduling and capacity expansion are achieved, meeting different needs and reducing complexity, ensuring the charging needs of each user.
Patent Information
- Application Number
- CN202422552533.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-10-21
AI Technical Summary
The existing charging stack power supply method cannot flexibly distribute the power of the charging module and cannot meet the different power requirements of different charging guns at the same time.
A ring-shaped topology strategy is adopted, and the charging lines are connected end to end in sequence through multiple contactors to form a ring-shaped power distribution unit. Combined with the mobile charging module and the mobile contact module, flexible power scheduling and capacity expansion are achieved.
It achieves flexible adaptation to different charging capacity requirements, reduces the complexity of the power distribution unit, ensures "first plug first charge" and "power allocation on demand", and ensures that every user can obtain charging services.
Smart Images
Figure CN223321789U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of charging stacks, and in particular to a power distribution unit and a charging stack. Background Art
[0002] Charging module power scheduling is a charging stack technology. Charging stacks in related technologies typically provide multiple charging modules, each of which is independently powered by a charging gun. Currently, charging stack power supply methods are not fully developed. In common charging scenarios, multiple charging guns are often used simultaneously, so the power requirements of each charging gun vary. Existing power supply methods cannot flexibly allocate charging modules and perform power scheduling to meet different capacity requirements. Utility Model Content
[0003] In view of this, the present application provides a power distribution unit and a charging stack, the purpose of which is to solve the above technical problems to a certain extent.
[0004] In a first aspect, the present application provides a power distribution unit, the power distribution unit comprising:
[0005] A main charging module, comprising a plurality of charging modules, a plurality of charging guns, and a plurality of charging circuits, wherein the plurality of charging modules, the plurality of charging guns, and the plurality of charging circuits are arranged in a one-to-one correspondence, and each charging circuit connects a corresponding charging module and a corresponding charging gun;
[0006] a contactor module, the contactor module comprising a plurality of contactors, the plurality of contactors being provided in a one-to-one correspondence with the plurality of charging circuits, the plurality of charging circuits being arranged in sequence, the plurality of contactors connecting the plurality of charging circuits end to end in the sequence;
[0007] The power distribution unit further includes a motorized charging module and a motorized contact module, wherein the motorized charging module includes the charging module, and the motorized contact module connects the motorized charging module with at least one of the multiple charging circuits.
[0008] Based on the above solution, preferably, the plurality of charging modules are arranged in the order, the plurality of charging modules are divided into a first charging module, and the charging modules in the first charging module are not continuous in the order;
[0009] The motorized contact module is connected to the motorized charging module and at least one of the charging circuits corresponding to the charging module in the first charging module.
[0010] Based on any of the above schemes, preferably, multiple charging modules adjacent in sequence in the first charging module are divided into a sub-module, the first charging module includes multiple sub-modules, the number of contactors in the motorized contact module is the same as the number of charging modules in the sub-module, and the contactors in the motorized contact module are connected one-to-one with the charging circuits corresponding to the charging modules in the sub-module.
[0011] Based on any of the above solutions, preferably, the number of charging modules in the motorized charging module is less than or equal to the number of contactors in the motorized contact module.
[0012] Based on any of the above solutions, preferably, the charging modules other than the first charging module in the plurality of charging modules are divided into second charging modules;
[0013] The order is formed by a plurality of numbers arranged continuously from small to large, each charging circuit corresponds to one of the plurality of numbers, the number of charging modules in the second charging module is an even number, and half of the charging modules in the second charging module with smaller numbers in the order correspond one-to-one to half of the charging modules with larger numbers;
[0014] The power distribution unit further includes a plurality of branch contactors, each of which is connected between a charging circuit corresponding to a charging module with a smaller number and a charging circuit corresponding to a charging module with a larger number.
[0015] Based on any of the above solutions, preferably, the number of charging modules in the first charging module is less than or equal to the number of charging modules in the second charging module.
[0016] Based on any of the above solutions, preferably, the second charging module includes charging modules that are consecutive in the order.
[0017] Based on any of the above solutions, preferably, the charging modules in the second charging module are not continuous in the order.
[0018] Based on any of the above solutions, preferably, the number of charging modules in the main charging module, the number of charging modules in the first charging module, and the number of charging modules in the second charging module are all even numbers.
[0019] In a second aspect, the present application provides a charging stack, which includes the power distribution unit as described above.
[0020] The power distribution unit provided by this application utilizes multiple contactors to connect multiple charging circuits end-to-end in sequence, thereby forming a ring structure. This ring structure topology strategy allows for flexible power allocation to each charging module, enabling power scheduling to meet varying charging capacity requirements. In an embodiment, in addition to the main charging module, the power distribution unit provided by this application further comprises a motorized charging module and a motorized contact module. The motorized charging module also includes a charging module. The motorized contact module connects the motorized charging module to at least one of the multiple charging circuits, thereby utilizing the motorized charging module to expand the power capacity of the main charging module, thereby adapting to varying charging power requirements.
[0021] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.
[0023] Figure 1 A schematic diagram showing an example of a power distribution unit provided according to an embodiment of the present application is shown;
[0024] Figure 2 A schematic diagram showing another example of a power distribution unit provided according to an embodiment of the present application is shown;
[0025] Figure 3 A schematic diagram showing another example of a power distribution unit provided according to an embodiment of the present application is shown;
[0026] Figure 4 A schematic diagram showing another example of a power distribution unit provided according to an embodiment of the present application is shown.
[0027] Reference numerals:
[0028] 10-main charging module; 20-mobile charging module; 30-contactor module; 40-mobile contact module; 50-branch contactor. DETAILED DESCRIPTION
[0029] The following will clearly and completely describe the technical solution of this application in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.
[0030] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0031] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.
[0032] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.
[0033] According to a first aspect of the embodiment of the present application, a power distribution unit is provided. Figures 1 to 3 The structure and working principle of the power distribution unit are described in detail.
[0034] According to the power distribution unit provided in the embodiment of the present application, the power distribution unit includes a main charging module 10 and a contactor module 30. In the embodiment, the main charging module 10 includes multiple charging modules, multiple charging guns, and multiple charging circuits. The aforementioned multiple charging modules, the aforementioned multiple charging guns, and the aforementioned multiple charging circuits are arranged in a one-to-one correspondence, and each charging circuit connects a corresponding charging module and charging gun. In the embodiment, the contactor module 30 includes multiple contactors. The aforementioned multiple contactors are arranged in a one-to-one correspondence with the aforementioned multiple charging circuits. The aforementioned multiple charging circuits are arranged in sequence, and the aforementioned multiple contactors connect the aforementioned multiple charging circuits end to end in sequence.
[0035] In an embodiment, the power distribution unit further includes a motorized charging module 20 and a motorized contact module 40 , wherein the motorized charging module 20 includes the above-mentioned charging module, and the motorized contact module 40 connects the motorized charging module 20 with at least one of the aforementioned multiple charging circuits.
[0036] Thus, according to the power distribution unit provided in the embodiment of the present application, multiple contactors are used to connect multiple charging circuits in sequence, thereby forming a ring structure. The topological strategy of this ring structure can flexibly distribute the power of each charging module and perform power scheduling to meet different charging capacity requirements. In an embodiment, in addition to the main charging module 10, the power distribution unit provided in the embodiment of the present application also has a motorized charging module 20 and a motorized contact module 40. The motorized charging module 20 also includes a charging module. The motorized contact module 40 connects the motorized charging module 20 and at least one of the multiple charging circuits, thereby using the motorized charging module 20 to expand the power capacity of the main charging module 10, thereby adapting to different charging power requirements.
[0037] In an embodiment, arranging the aforementioned multiple charging circuits in order should be understood to include the following meaning: numbering each of the multiple charging circuits so that each charging circuit has an adjacent consecutive number, arranging the multiple charging circuit numbers in this consecutive manner, and then arranging the multiple charging circuits. In an embodiment, the numbering can be performed using Arabic numerals, for example, numbering the multiple charging circuits from 1 to the maximum number of charging circuits, and then arranging the charging circuits in order from smallest to largest. In other words, the order is formed by a plurality of numbers arranged consecutively from smallest to largest, and each charging circuit corresponds to one of these numbers, that is, each charging circuit has a unique number.
[0038] In an embodiment, still using the above numbering scheme as an example, the number of contactors can be the same as the number of charging circuits. Specifically, the number of contactors can be the same as the number of charging circuits. Thus, adjacent charging circuits are connected by a contactor in sequence, and the highest-numbered charging circuit and the lowest-numbered charging circuit are also connected by a contactor. This is the meaning of connecting these charging circuits end to end as mentioned above. Therefore, through the connection of these charging circuits by these contactors, the power distribution unit has the ring structure mentioned above.
[0039] In this embodiment, as an example, the number of charging modules can be an even number. Here, 2M can be used to represent the number of charging modules. That is, the main charging module 10 includes 2M charging modules, where M is a positive integer. The specific number of M will be described in more specific examples later. Furthermore, in this embodiment, the charging modules are used to provide DC power. The contactors in the contactor module 30 connect the circuit they are connected to when closed and disconnect the circuit they are connected to when open.
[0040] In an embodiment, the motorized charging module 20 can be connected to one charging line or multiple charging lines, and the motorized contact module 40 includes contactors, the number of which can be the same as the number of charging lines to which the motorized charging module 20 is to be connected.
[0041] According to the power distribution unit provided in the embodiment of the present application, the above-mentioned multiple charging modules can be arranged in sequence, the above-mentioned multiple charging modules can be divided into a first charging module, and the charging modules in the first charging module can be discontinuous in sequence.
[0042] In an embodiment, the motorized contact module 40 can connect the motorized charging module 20 and at least one of the charging lines corresponding to the charging modules in the first charging module.
[0043] In an embodiment, according to the power distribution unit provided in an embodiment of the present application, a first charging module is divided from the above-mentioned multiple charging modules, and at least one of the charging circuits corresponding to the charging modules in the first charging module is connected to the motorized charging module 20 via the motorized contact module 40.
[0044] In this embodiment, the charging modules in the first charging module are not sequentially ordered, which should be understood to include the following meaning: even adjacent charging modules in the first charging module are not numbered consecutively, but rather have other numbers between them that are not included in the first charging module. In this embodiment, by separating the first charging module from the main charging module 10 and connecting it to the mobile charging module 20, power capacity can be flexibly expanded to adapt to different power requirements.
[0045] In addition, it should be noted that the adjacent charging modules in the first charging module mentioned in the above description should be understood as a charging module being adjacent to another charging module with the closest number. For example, if the first charging module includes three charging modules numbered 1, 3, and 5, then the charging module numbered 1 and the charging module numbered 3 are adjacent charging modules in the first charging module, and the charging module numbered 3 and the charging module numbered 5 are adjacent charging modules in the first charging module.
[0046] In an embodiment, one of the charging circuits corresponding to the charging module in the first charging module can be connected to the motorized charging module 20, or multiple charging circuits can be connected to the motorized charging module 20. The number of charging circuits connected to the motorized charging module 20 is the same as the number of contactors in the motorized contact module 40.
[0047] According to the power distribution unit provided in the embodiment of the present application, multiple charging modules adjacent in sequence in the first charging module can be divided into a sub-module, the first charging module can include multiple sub-modules, the number of contactors in the motorized contact module 40 can be the same as the number of charging modules in the sub-module, and the contactors in the motorized contact module 40 can be connected one-to-one with the charging circuits corresponding to the charging modules in the sub-modules.
[0048] Thus, in an embodiment, according to the power distribution unit provided in an embodiment of the present application, the charging modules in the sub-module correspond one-to-one with the contactors in the motorized contact module 40, so that each charging module in the sub-module can be controlled by the corresponding contactor to be connected or disconnected with the motorized charging module 20, thereby facilitating independent control of each charging module in the sub-module, thereby facilitating power adaptation of the charging guns connected to these charging modules.
[0049] In the embodiment, it should be noted that, as mentioned above regarding the meaning of adjacent, here, sequentially adjacent is also understood according to the meaning of adjacent mentioned above.
[0050] In an embodiment, as an example, the number of charging modules in the sub-module can be, for example, two. As an example, the number of sub-modules can be, for example, Ma. In an embodiment, Ma is a positive integer, and as an example, 2Ma≤M. Specifically, the first charging module can include 2Ma charging modules selected from the main charging module 10 at intervals, and then two adjacent charging modules in the first charging module are used as a group of sub-modules. The motorized contact module 40 can correspondingly have two contactors. Here, as an example, the contactor in the contactor module 30 and the contactor in the motorized contact module 40 here can both be, for example, DC contactors.
[0051] In an embodiment, the two charging modules in the sub-module are connected to one end of the two contactors in the motorized contact module 40 in a one-to-one correspondence, and the other ends of the two contactors are connected to the motorized charging module 20 .
[0052] According to the power distribution unit provided in the embodiment of the present application, the number of charging modules in the motorized charging module 20 is less than or equal to the number of contactors in the motorized contact module 40. In the embodiment, a smaller number of charging modules can be arranged in the motorized charging module 20 according to actual needs, or the same number of charging modules as the number of contactors in the motorized contact module 40 can be arranged. As an example, regardless of the number of charging modules, the contactors in the motorized contact module 40 all reuse these charging modules. The specific reuse method will be explained in the subsequent description.
[0053] According to the power distribution unit provided in the embodiment of the present application, the contactors in the motorized contact module 40 can be configured so that only one contactor can be closed. That is, in the power distribution unit provided in the embodiment of the present application, only one contactor in the motorized contact module 40 is closed at the same time. That is, when different contactors are closed, the charging modules in the motorized charging module 20 are all connected to the closed contactors. This is also the case that the contactors in the motorized contact module 40 mentioned in the above description all share the same charging modules in the motorized charging module 20.
[0054] According to the power distribution unit provided in an embodiment of the present application, the charging modules other than the first charging module in the plurality of charging modules in the primary charging module 10 are divided into a second charging module. In an embodiment, the number of charging modules in the second charging module can also be an even number, with the lower-numbered half of the charging modules in the second charging module corresponding one-to-one with the higher-numbered half of the charging modules.
[0055] In the embodiment, specifically, since the number of charging modules in the second charging module is also an even number, the charging modules in the second charging module must be divided into two groups of the same number. During the division process, the charging modules in the second charging module can be referred to in ascending order of numbering, and then the charging modules with smaller numbers in the first half and the charging modules with larger numbers in the second half can be matched one by one.
[0056] As an example, in an embodiment, as an example, the number of charging modules in the second charging module can be, for example, 2Mb. Similar to Ma above, Mb is also a positive integer. In an embodiment, M=Ma+Mb, where, as an example, Ma≤Mb, that is, the number of charging modules in the first charging module can be less than or equal to the number of charging modules in the second charging module.
[0057] In the embodiment, the charging modules with smaller numbers in the first half mentioned in the above description are the first Mb charging modules, and the charging modules with larger numbers in the second half are the last Mb charging modules.
[0058] In an embodiment, the power distribution unit provided according to the embodiment of the present application may further include a plurality of branch contactors 50, each branch contactor 50 being connected between the charging circuit corresponding to the corresponding charging module with a smaller number and the charging circuit corresponding to the charging module with a larger number.
[0059] According to the power distribution unit provided in the embodiment of the present application, the second charging modules are divided into two groups according to the size of the numbers, and the two groups of charging modules are connected accordingly to achieve jump connection across the numbers. Compared with the method of using only main circuit contactors, a small number of branch circuit contactors can achieve the purpose of quickly calling charging modules with larger number intervals.
[0060] According to the power distribution unit provided in the embodiment of the present application, under the above-mentioned configuration of the motorized charging module, the first charging module, and the second charging module, the first charging module includes odd-numbered charging modules, and the second charging module includes even-numbered charging modules and any remaining odd-numbered charging modules. In this way, when controlling the power distribution unit, the control performed is cyclic polling. Since the main charging module has formed a large loop structure through the contactor module, combined with the jump connection of the even-numbered charging modules and any remaining odd-numbered charging modules in the second charging module, the odd-numbered loop, the even-numbered loop, and the large loop can be comprehensively considered in the cyclic polling, thereby finding a suitable charging path allocation solution.
[0061] Therefore, according to the power distribution unit provided in the embodiment of the present application, while adopting a ring structure, the first charging module is combined as a mobile adjustment, and the second charging module is combined as a branch for jumpering topology strategy to achieve the same topology and control strategy. Through flexible power scheduling, different capacity requirements are met, and the number of contactors is greatly reduced, thereby achieving the purpose of reducing the complexity of the power distribution unit.
[0062] In the embodiment, the "appropriate charging path allocation scheme" mentioned in the above description should be understood to include the following meanings, namely, first allocating charging modules according to small rings (odd rings, even rings), and then allocating charging modules according to large rings, first allocating charging modules in the forward direction formed by numbers from small to large, and then allocating charging modules in the reverse direction from large to small. Thus, after calculation, the optimal allocation scheme is obtained, and then the conduction and disconnection actions of the corresponding contactors are completed. In the optimal allocation scheme, charging modules are preferentially allocated to users who plug in their guns (charging guns) based on the time sequence of users plugging in the guns (charging guns). The number of modules is based on their charging power requirements, while ensuring that every user plugs in a gun can charge, that is, every user who plugs in a gun can be allocated at least one charging module.
[0063] In summary, for a suitable charging path allocation scheme, that is, the optimal allocation scheme, what is ensured is "first plug in, first charge", "power allocation on demand" and "each user has electricity to charge". That is to say, when the total power of the power distribution unit can meet the needs of all current users, "first plug in, first charge" and "power allocation on demand" are realized, and when the total power of the power distribution unit cannot meet the needs of all current users, it is ensured that "each user has electricity to charge", that is, each user who plugs in the gun as mentioned above can be allocated at least one charging module. In addition, according to the power distribution unit provided in the embodiment of the present application, although the charging modules in the first charging module are numbered sequentially, the second charging module may include charging modules that are continuous in sequence. However, in other examples, according to the power distribution unit provided in the embodiment of the present application, the charging modules in the second charging module may not be continuous in sequence, for example, like the charging modules in the first charging module, the numbers are spaced sequentially.
[0064] In addition, in the embodiment, as mentioned in the above description, whether it is the main charging module or the first charging module and the second charging module, the number of their charging modules can be an even number, which is convenient for sorting the main charging modules in an odd and even alternating manner, and also convenient for the charging guns to be grouped according to the currently implemented even number (for example, 4, such as 8 guns are 2 groups, 10 guns are equal to 4+4+2, and the last group number is confirmed according to actual needs), thereby reducing the amount of structural adjustment to the currently implemented power distribution unit.
[0065] like Figure 1 As shown, Figure 1 According to an example of a power distribution unit provided in an embodiment of the present application, Figure 1 In the example given, the number of charging guns, charging lines, and charging modules in the main charging module 10 can be, for example, 12, that is, M = 6. As an example, the number of motorized charging modules 20 can be 3, that is, Mb = 3, and each motorized charging module 20 can be equipped with two charging modules.
[0066] In the embodiment, the charging modules in the first charging module are numbered 2, 4, 6, 8, 10 and 12, and the charging modules in the second charging module are numbered 1, 3, 5, 7, 9 and 11. The charging modules numbered 1, 3 and 5 in the second charging module are regarded as the first half of the group, and the charging modules numbered 7, 9 and 11 in the second charging module are regarded as the second half of the group. The charging module numbered 1 corresponds to the charging module numbered 7, the charging module numbered 3 corresponds to the charging module numbered 9, and the charging module numbered 5 corresponds to the charging module numbered 11. Then, the charging circuits corresponding to the two corresponding charging modules are connected using corresponding branch contactors 50, as shown in FIG. Figure 1 As shown in .
[0067] In the embodiment, as an example, whether it is the charging module in the motorized charging module 20 or the charging module in the main charging module 10, the power of these charging modules can be the same. Figure 1 For example, the power of the charging module can be 40kW. Figure 1 The example power distribution unit shown in Figure 1 can include 18 charging modules, making it a 720kW, 12-charger dual-ring power distribution unit. Here, 720kW represents the total power of the 18 charging modules, and 12 represents the number of charging guns. One ring in the dual-ring configuration is defined as the ring formed by the end-to-end connection of the charging circuits in the main charging module 10, implemented by the contactor module 30. The other ring in the dual-ring configuration is defined as the ring formed by the branch contactor 50 connecting the two groups of charging modules in the second charging module.
[0068] like Figure 2 As shown, Figure 2 According to another example of the power distribution unit provided in the embodiment of the present application, Figure 2 In the example given, the number of charging modules in the main charging module 10 can also be 12. Accordingly, the arrangement of the first charging module, the second charging module and the branch contactor 50 can be the same as Figure 1 The example of the medium power distribution unit is the same.
[0069] In an embodiment, Figure 2 The example given is similar to Figure 1 The difference is that in different motorized charging modules 20, the number of charging modules is different. Figure 1 The similarity is that Figure 2 The number of motorized charging modules 20 in Figure 1 The number of the mobile charging modules 20 is the same, both are three, but Figure 2 The first motorized charging module 20 on the left has two charging modules, while the two motorized charging modules 20 behind have one charging module. When the charging module is still at 40kW power, Figure 2 The power distribution unit in the example given has 16 charging modules, corresponding to a total power of 640kW. Figure 2 The example given is essentially a 640kW 12-gun dual-ring power distribution unit.
[0070] Similar to the example above, here 640kW is the total power of 16 charging modules, 12 guns is the number of charging guns, and one ring in the dual-ring type should be understood as a ring formed by connecting the charging lines in the main charging module 10 in sequence by the contactor module 30, and the other ring in the dual-ring type should be understood as a ring formed by connecting the two groups of charging modules in the second charging module by the branch contactor 50.
[0071] like Figure 3 As shown, Figure 3 According to another example of the power distribution unit provided in an embodiment of the present application, Figure 3 In the example given, the number of charging guns, charging lines, and charging modules in the main charging module 10 can be, for example, 10, that is, M = 5. As an example, the number of motorized charging modules 20 can be 2, that is, Mb = 2, and each motorized charging module 20 can be equipped with a charging module.
[0072] In the embodiment, the charging modules in the first charging module are numbered 2, 4, 6 and 8, and the charging modules in the second charging module are numbered 1, 3, 5, 7, 9 and 10 (i.e., there are charging modules with consecutive numbers as mentioned in the above description, i.e., numbered 9 and numbered 10 are consecutive). The charging modules numbered 1, 3 and 5 in the second charging module are regarded as the first half of the group, and the charging modules numbered 7, 9 and 10 in the second charging module are regarded as the second half of the group. The charging module numbered 1 corresponds to the charging module numbered 7, the charging module numbered 3 corresponds to the charging module numbered 9, and the charging module numbered 5 corresponds to the charging module numbered 10. Then, the charging circuits corresponding to the two corresponding charging modules are connected using the corresponding branch contactors 50, as shown in FIG. Figure 3 As shown in .
[0073] In the embodiment, as an example, the power of the charging module in the motorized charging module 20 and the charging module in the main charging module 10 can still be the same. Figure 3 For example, the power of the charging module can still be 40kW. Figure 3 In the example of the power distribution unit given in , the power distribution unit can include a total of 12 charging modules, so the power distribution unit is essentially a 480kW 10-gun dual-ring power distribution unit.
[0074] Similar to the example above, here 480kW is the total power of 12 charging modules, 10 guns is the number of charging guns, and one ring in the dual-ring type should be understood as a ring formed by connecting the charging lines in the main charging module 10 in sequence by the contactor module 30, and the other ring in the dual-ring type should be understood as a ring formed by connecting the two groups of charging modules in the second charging module by the branch contactor 50.
[0075] like Figure 4 As shown, Figure 4 According to another example of the power distribution unit provided in an embodiment of the present application, Figure 4 In the example given, the number of charging guns, charging lines, and charging modules in the main charging module 10 can be, for example, 8, that is, M = 4. As an example, the number of motorized charging modules 20 can be 2, that is, Mb = 2, and each motorized charging module 20 can be equipped with a charging module.
[0076] In the embodiment, the charging modules in the first charging module are numbered 2, 4, 6 and 8, and the charging modules in the second charging module are numbered 1, 3, 5 and 7. The charging modules numbered 1 and 3 in the second charging module are regarded as the first half of the group, and the charging modules numbered 5 and 7 in the second charging module are regarded as the second half of the group. The charging module numbered 1 is matched with the charging module numbered 5, and the charging module numbered 3 is matched with the charging module numbered 7. Then, the charging circuits corresponding to the two corresponding charging modules are connected using the corresponding branch contactors 50, as shown in FIG. Figure 4 As shown in .
[0077] In the embodiment, as an example, the power of the charging module in the motorized charging module 20 and the charging module in the main charging module 10 can still be the same. Figure 4 For example, the power of the charging module can still be 40kW. Figure 4 In the example of the power distribution unit given in , the power distribution unit can include a total of 10 charging modules, so the power distribution unit is essentially a 400kW 8-gun dual-ring power distribution unit.
[0078] Similar to the example above, here 400kW is the total power of 10 charging modules, 8 guns is the number of charging guns, one ring in the dual-ring type should be understood as a ring formed by connecting the charging lines in the main charging module 10 in sequence by the contactor module 30, and the other ring in the dual-ring type should be understood as a ring formed by connecting the two groups of charging modules in the second charging module by the branch contactor 50.
[0079] Therefore, according to the power distribution unit provided in the embodiment of the present application, while adopting a ring structure, the first charging module is combined as a mobile adjustment, and the second charging module is combined as a branch for jumpering topology strategy to achieve the same topology and control strategy. Through flexible power scheduling, different capacity requirements are met, and the number of contactors is greatly reduced, thereby achieving the purpose of reducing the complexity of the power distribution unit.
[0080] According to a second aspect of an embodiment of the present application, a charging stack is provided. The charging stack includes the power distribution unit as described above, and also includes the beneficial effects as described above, which will not be repeated here.
[0081] The above are only preferred embodiments of the present application and do not limit the scope of protection of the present application. All equivalent structural transformations made based on the contents of the present application specification and drawings under the innovative concept of the present application, or direct / indirect application in other related technical fields are included in the scope of protection of the present application.
Claims
1. A power distribution unit, characterized in that: The power distribution unit includes: A main charging module, comprising a plurality of charging modules, a plurality of charging guns, and a plurality of charging circuits, wherein the plurality of charging modules, the plurality of charging guns, and the plurality of charging circuits are arranged in a one-to-one correspondence, and each charging circuit connects a corresponding charging module and a corresponding charging gun; a contactor module, the contactor module comprising a plurality of contactors, the plurality of contactors being provided in a one-to-one correspondence with the plurality of charging circuits, the plurality of charging circuits being arranged in sequence, the plurality of contactors connecting the plurality of charging circuits end to end in the sequence; The power distribution unit further includes a motorized charging module and a motorized contact module, wherein the motorized charging module includes the charging module, and the motorized contact module connects the motorized charging module with at least one of the multiple charging circuits.
2. The power distribution unit according to claim 1, wherein: The plurality of charging modules are arranged in the order, the plurality of charging modules are divided into a first charging module, and the charging modules in the first charging module are not continuous in the order; The motorized contact module is connected to the motorized charging module and at least one of the charging circuits corresponding to the charging module in the first charging module.
3. The power distribution unit according to claim 2, characterized in that: Multiple charging modules adjacent in sequence in the first charging module are divided into a sub-module, the first charging module includes multiple sub-modules, the number of contactors in the motorized contact module is the same as the number of charging modules in the sub-module, and the contactors in the motorized contact module are connected one-to-one with the charging circuits corresponding to the charging modules in the sub-module.
4. The power distribution unit according to claim 3, characterized in that: The number of charging modules in the motorized charging module is less than or equal to the number of contactors in the motorized contact module.
5. The power distribution unit according to claim 2, characterized in that: The charging modules other than the first charging module among the plurality of charging modules are divided into second charging modules; The order is formed by a plurality of numbers arranged continuously from small to large, each charging circuit corresponds to one of the plurality of numbers, the number of charging modules in the second charging module is an even number, and half of the charging modules in the second charging module with smaller numbers in the order correspond one-to-one to half of the charging modules with larger numbers; The power distribution unit further includes a plurality of branch contactors, each of which is connected between a charging circuit corresponding to a charging module with a smaller number and a charging circuit corresponding to a charging module with a larger number.
6. The power distribution unit according to claim 5, characterized in that: The number of charging modules in the first charging module is less than or equal to the number of charging modules in the second charging module.
7. The power distribution unit according to claim 5, characterized in that: The second charging module includes charging modules that are consecutive in the order.
8. The power distribution unit according to claim 5, characterized in that: The charging modules in the second charging module are not continuous in the sequence.
9. The power distribution unit according to claim 5, characterized in that: The number of charging modules in the main charging module, the number of charging modules in the first charging module, and the number of charging modules in the second charging module are all even numbers.
10. A charging stack, characterized in that: The charging stack comprises a power distribution unit according to any one of claims 1 to 9.