Sub-control convergence equipment

Abstract

The utility model discloses sub-control confluence equipment, which comprises a confluence cabinet and a plurality of confluence units arranged in the confluence cabinet, an accommodating space is formed in the confluence cabinet, and the confluence cabinet is also provided with an air inlet and an air outlet which are respectively communicated with the accommodating space; the multiple confluence units are arranged in the containing space, each confluence unit comprises a control assembly, an input assembly and an output assembly, the input assembly and the output assembly are electrically connected with the control assembly, a heat dissipation gap is formed between every two adjacent control assemblies, and a connecting line of the air inlet and the air outlet penetrates through the heat dissipation gaps. Compared with the prior art, the sub-control confluence equipment can independently control each confluence unit, and facilitates overhaul and maintenance of the confluence units.

Description

Technical Field

[0001] This utility model relates to the field of high voltage switchgear technology, and in particular to a distributed control bus device. Background Technology

[0002] Busbar junction devices are an indispensable and important component in power systems, undertaking multiple tasks such as current collection, circuit protection, and simplified system maintenance. Busbar junction devices typically consist of a high-voltage area for collecting and outputting current and a low-voltage area for control circuitry. However, traditional low-voltage areas can only provide overall control of the current collection. When maintenance or adjustment of a portion of the high-voltage circuit is required, the entire busbar junction device must be shut down, which causes certain inconveniences. Utility Model Content

[0003] One objective of this invention is to provide a distributed control bus device, which aims to solve the technical problem that existing bus devices cannot perform local control of some high-voltage lines.

[0004] To achieve the above objectives, the present invention provides a solution as follows: a distributed control and merging device, which includes a merging cabinet and multiple merging units disposed within the merging cabinet. Specifically, the merging cabinet forms a accommodating space, and the merging cabinet is also provided with an air inlet and an air outlet respectively communicating with the accommodating space; multiple merging units are disposed within the accommodating space, and each merging unit includes a control component and an input component and an output component respectively electrically connected to the control component; a heat dissipation gap is formed between adjacent control components, and the line connecting the air inlet and the air outlet passes through the heat dissipation gap.

[0005] In some embodiments of this application, there are two, four, six, or eight busbars arranged in an array. The input components include input bars and input terminals. The control components are electrically connected to the input bars, and each input bar is electrically connected to two or four input terminals.

[0006] In some embodiments of this application, there is an electrical clearance L between adjacent input terminals, where 30mm ≤ L ≤ 80mm.

[0007] In some embodiments of this application, the input component further includes an insulating sleeve that covers the input row.

[0008] In some embodiments of this application, the output component includes an output bar and output terminals. The output terminals are electrically connected to the control component via the output bar, and the cross-sectional area S of the output bar satisfies 100 mm². 2 ≤S≤400mm 2 .

[0009] In some embodiments of this application, the output component includes an output bar and multiple output terminals. The output bar is electrically connected to the control component, and multiple conductive holes are provided on the output bar. The output terminals are inserted into the conductive holes.

[0010] In some embodiments of this application, the cross-sectional area of ​​the output row increases as it approaches the control component.

[0011] In some embodiments of this application, the input component and the output component are electrically connected to opposite ends of the control component, respectively.

[0012] In some embodiments of this application, the combiner cabinet includes a top plate and a bottom plate disposed opposite to each other, and also includes a plurality of side plates connected between the top plate and the bottom plate. The top plate, the bottom plate and the side plates together form an accommodating space. An operation window communicating with the accommodating space is formed on one of the side plates. The operation window corresponds one to one of the control components. The control components include a circuit breaker and a control panel that are electrically connected. The circuit breaker is electrically connected to an input component and an output component. The control panel is embedded in the operation window.

[0013] In some embodiments of this application, the air outlet is located on the top plate, and the air inlet and the operation window are located on the same side plate.

[0014] In some embodiments of this application, the input component includes an input bar and input terminals. The input terminals are electrically connected to the control component through the input bar. The combiner cabinet also has terminal holes that communicate with the accommodating space. The input terminals are inserted into the terminal holes one by one.

[0015] The beneficial effects of this utility model are as follows:

[0016] The combiner cabinet forms a storage space, and it also has air inlets and outlets that communicate with this space. Multiple combiner units are housed within this space. Each combiner unit includes a control component and input and output components electrically connected to the control component. Heat dissipation gaps are formed between adjacent control components, and the wiring connecting the air inlets and outlets passes through these gaps. By using multiple combiner units with independent control components and a targeted heat dissipation channel structure, independent control of each high-voltage circuit is achieved.

[0017] On the one hand, because there are multiple busbar units, and each busbar unit includes an independent control component, when a specific input or output component needs maintenance, only the corresponding control component needs to be operated to shut down the independent busbar unit without affecting the operation of other circuits, thus solving the technical problem of requiring the entire machine to be shut down in the prior art. On the other hand, the air duct formed between the air inlet and the air outlet passes through the heat dissipation gap, which makes the busbar unit less obstructive to heat dissipation. That is, when a single busbar unit is being maintained, the remaining busbar units still maintain good heat dissipation, ensuring that the busbar units have a low operating temperature while also optimizing the working environment for the operators. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the distributed control and combiner device provided in this embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the distributed control combiner device provided in this embodiment of the utility model after the combiner cabinet has been removed;

[0021] Figure 3 This is a schematic diagram of the structure of the bus unit provided in this embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of a bus unit provided in another embodiment of the present invention;

[0023] Figure 5 It is along Figure 4 A cross-sectional view of line AA in the middle.

[0024] Explanation of icon numbers:

[0025] 11. Side panel; 111. Air inlet; 112. Operation window; 113. Terminal hole; 12. Top panel; 121. Air outlet; 20. Busbar unit; 21. Control assembly; 211. Circuit breaker; 212. Control panel; 22. Input assembly; 221. Input row; 222. Input terminal; 223. Insulating sleeve; 23. Output assembly; 231. Output row; 2311. Conductive hole; 232. Output terminal. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1 to 3 As shown, Figure 1 This is a schematic diagram of the overall structure of the distributed control and combiner device provided in this embodiment of the utility model; Figure 2 This is a schematic diagram of the internal structure of the distributed control combiner device provided in this embodiment of the utility model after the combiner cabinet has been removed; Figure 3This is a schematic diagram of the structure of the bus unit 20 provided in this embodiment of the utility model.

[0028] To address the technical problem of the difficulty in independently controlling the high-voltage area inside the current combining facility in the prior art, this utility model discloses a separate control current combining device. The separate control current combining device includes a current combining cabinet and multiple current combining units 20 disposed within the current combining cabinet. Specifically, the current combining cabinet forms a accommodating space, and the current combining cabinet is also provided with an air inlet 111 and an air outlet 121 respectively communicating with the accommodating space; multiple current combining units 20 are disposed within the accommodating space, and each current combining unit 20 includes a control component 21 and an input component 22 and an output component 23 respectively electrically connected to the control component 21. A heat dissipation gap is formed between adjacent control components 21, and the line connecting the air inlet 111 and the air outlet 121 passes through the heat dissipation gap.

[0029] In this embodiment, the combiner cabinet is internally equipped with multiple combiner units 20, and each combiner unit 20 includes an independent control component 21 and an input component 22 and an output component 23 electrically connected to the control component 21. When a specific combiner unit 20 needs to be repaired or replaced, it is only necessary to operate the control component 21 corresponding to that combiner unit 20 to de-energize the individual combiner unit 20. While other combiner units 20 remain operational, the repair or replacement of the specific combiner unit 20 can be achieved. Furthermore, the through-flow air duct formed by the air inlet 111 and the air outlet 121 passes through the heat dissipation gap. During maintenance of a single combiner unit 20, adjacent combiner units 20 can still maintain a high heat dissipation effect. This not only ensures that the equipment is always in an optimized temperature control state during maintenance, but also effectively improves the comfort of the operator's working environment through intelligent control of airflow organization.

[0030] It should be understood that, in this embodiment, the line connecting the air inlet 111 and the air outlet 121 passing through the heat dissipation gap should be defined as follows: if a virtual point is taken on each of the air inlet 111 and the air outlet 121 and a line is drawn connecting them, at least one of the connecting lines will pass through the heat dissipation gap. Under the above conditions, the cooling airflow, after entering through the air inlet 111 and passing through the air duct of the air outlet 121, can produce a good cooling effect on the control components 21 on both sides of the cooling gap.

[0031] It should be noted that this application only solves the problem of separate control and heat dissipation of multiple combiner units 20 in the combiner device. In actual operation, the high-voltage areas, including the input component 22 and the output component 23, are at risk of high voltage induction. Therefore, live-line work still needs to be analyzed according to the actual operating parameters of the separate control combiner device. Insulation treatment for the combiner units 20 that pose a risk is a common technical means for those skilled in the art, and will not be elaborated here. Nor should this negate the practical significance of the technical solution of this application.

[0032] In some embodiments of this application, the bus unit 20 has two, four, six, or eight units arranged in an array, the input component 22 includes an input bar 221 and input terminals 222, the control component 21 is electrically connected to the input bar 221, and each input bar 221 is electrically connected to two or four input terminals 222.

[0033] The input component 22 includes an input row 221 and input terminals 222. Each input row 221 is electrically connected to multiple input terminals 222. That is, each control component 21 controls multiple input terminals 222, which increases the power of the combiner cabinet. The even number of combiner units 20 arranged in an array ensures the uniform arrangement of the heat dissipation gaps, making the airflow between the air inlet 111 and the air outlet 121 smooth, and avoiding the obstruction of cooling airflow and the reduction of heat dissipation power due to the obstruction of the combiner units 20.

[0034] Furthermore, there is an electrical clearance L between adjacent input terminals 222, 30mm≤L≤80mm.

[0035] When multiple input terminals 222 are arranged close together, there is a risk of electric shock between them. The electrical clearance is designed to reduce this risk. If the electrical clearance is too small, it is difficult to provide reliable insulation; if the electrical clearance is too large, it will occupy extra space, resulting in a decrease in the effective volume of the accommodating space. 30mm≤L≤80mm is a choice that ensures good insulation without occupying too much accommodating space. Examples include L=30mm, L=35mm, L=40mm, L=50mm, L=60mm, L=75mm, etc.

[0036] Optionally, the input component 22 may also include an insulating sleeve 223, which covers the input row 221.

[0037] As previously explained, when multiple input terminals 222 are arranged close together, there is a risk of electric shock between them. The insulating sleeve 223 can effectively reduce the risk of electric shock, avoid interference within or between busbar units 20, and enhance the operational stability of the distributed control busbar device. For example, the insulating sleeve 223 can be obtained by dip-coating the surface of the input bar 221.

[0038] Optionally, the output component 23 includes an output bar 231 and an output terminal 232. The output terminal 232 is electrically connected to the control component 21 through the output bar 231. The cross-sectional area S of the output bar 231 satisfies 100mm2≤S≤400mm2.

[0039] It should be clarified that the cross-sectional area mentioned in this application should be understood as the area of ​​the shape obtained by intersecting a plane perpendicular to the current-carrying direction with the conductive structure. The larger the cross-sectional area of ​​the output row 231, the stronger its current-carrying capacity. However, an excessively large cross-sectional area of ​​the output row 231 will lead to additional waste of space and materials. (100mm) 2 ≤S≤400mm 2 While meeting the 250A current load of a common multi-input terminal 222 bus, it can achieve this without excessive material waste; for example, S = 100mm. 2 S = 150mm 2 S = 200mm 2 S = 400mm 2 wait.

[0040] In some embodiments of this application, the output component 23 includes an output bar 231 and a plurality of output terminals 232. The output bar 231 is electrically connected to the control component 21. A plurality of conductive holes 2311 are provided on the output bar 231, and the output terminals 232 are inserted into the conductive holes 2311.

[0041] Please refer to the following: Figure 4 , Figure 4 This is a schematic diagram of the structure of the bus unit 20 provided in another embodiment of the present invention.

[0042] In this embodiment, the output terminal 232 is electrically connected to the output bus 231 by being inserted into the conductive hole 2311. Firstly, this allows for the replacement of a single output terminal 232 without disassembling the output bus 231. Secondly, with the output bus 231 configuration unchanged, the output parameters can be flexibly adjusted by increasing or decreasing the number of terminals. Thirdly, during maintenance, the faulty output terminal 232 can be disconnected individually without affecting the overall output of the bus assembly.

[0043] It is conceivable that there are multiple ways to fix the output terminal 232 when it is inserted into the conductive hole 2311. It can be that the output terminal 232 itself is tapered and the output terminal 232 and the conductive hole 2311 are interference-locked. Alternatively, the tip of the output terminal 232 can be tapped to produce a thread, and the tip of the output terminal 232 protrudes from the opposite side surface of the output bar 231. A nut is set to engage with the thread of the output terminal 232 to achieve fixation.

[0044] Please refer to the following: Figure 5 , Figure 5 It is along Figure 4 A cross-sectional view of line AA in the middle.

[0045] Furthermore, the cross-sectional area of ​​the output row 231 increases as it approaches the control component 21.

[0046] As the output busbar 231 approaches the control component 21, the current carried by it increases. The cross-sectional area of ​​the output busbar 231 increases as it approaches the control component 21. This can reduce material waste at the end of the output busbar 231 that is far from the control component 21, while meeting the current carrying requirements of different parts of the output busbar 231.

[0047] In some embodiments of this application, the input component 22 and the output component 23 are electrically connected to opposite ends of the control component 21, respectively.

[0048] The input component 22 and the output component 23 are respectively connected to opposite ends of the control component 21, which maximizes the distance between the input component 22 and the output component 23 connected to the same control component 21 and avoids interference between the input component 22 and the output component 23.

[0049] In some embodiments of this application, the combiner cabinet includes a top plate 12 and a bottom plate disposed opposite to each other, and also includes a plurality of side plates 11 connected between the top plate 12 and the bottom plate. The top plate 12, the bottom plate and the side plates 11 together form an accommodating space. An operation window 112 communicating with the accommodating space is formed on one of the side plates 11. The operation window 112 corresponds to a control component 21 one by one. The control component 21 includes a circuit breaker 211 and a control panel 212 that are electrically connected. The circuit breaker 211 is electrically connected to an input component 22 and an output component 23. The control panel 212 is embedded in the operation window 112.

[0050] The control panel 212 is embedded in the operation window 112, which allows the operator to operate the control component 21 and adjust each combiner unit 20 without disassembling the combiner cabinet.

[0051] Furthermore, the air outlet 121 is located on the top plate 12, and the air inlet 111 and the operation window 112 are located on the same side plate 11.

[0052] The air outlet 121 is located on the top plate 12, so that the cooling airflow in the combiner cabinet flows from bottom to top. After the cooling airflow enters the combiner cabinet, it heats up and has a spontaneous upward trend, which can enhance the flow rate of the cooling airflow and increase the cooling power.

[0053] Optionally, the input component 22 includes an input bar 221 and an input terminal 222. The input terminal 222 is electrically connected to the control component 21 through the input bar 221. The combiner cabinet also has terminal holes 113 that communicate with the accommodating space. The input terminals 222 are inserted into the terminal holes 113 one by one.

[0054] The terminal hole 113 extends the input terminal 222 of the bus unit 20 to the outside of the bus cabinet, which facilitates the adjustment of the bus unit 20. For example, when it is necessary to change the input cable of a bus unit 20, you only need to operate the control panel 212 to temporarily shut down the corresponding bus unit 20, and you can replace the input cable of the bus unit 20 without disassembling the bus cabinet.

[0055] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0056] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0057] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0058] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the design concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A distributed control bus device, characterized in that, include: A junction box, which forms a housing space, and the junction box is also provided with an air inlet and an air outlet that are respectively connected to the housing space; Multiple busbar units are disposed within the accommodating space. Each busbar unit includes a control component and an input component and an output component electrically connected to the control component. A heat dissipation gap is formed between adjacent control components, and the line connecting the air inlet and the air outlet passes through the heat dissipation gap.

2. The distributed control bus device according to claim 1, characterized in that, The bus unit has two, four, six, or eight units arranged in an array. The input component includes an input bar and input terminals. The control component is electrically connected to the input bar. Each input bar is electrically connected to two or four input terminals.

3. The distributed control bus device according to claim 2, characterized in that, There is an electrical clearance L between adjacent input terminals, where 30mm ≤ L ≤ 80mm.

4. The distributed control bus device according to claim 2, characterized in that, The input component also includes an insulating sleeve that covers the input row.

5. The distributed control bus device according to claim 2, characterized in that, The output component includes an output bar and output terminals. The output terminals are electrically connected to the control component via the output bar. The cross-sectional area S of the output bar satisfies 100 mm². 2 ≤S≤400mm 2 .

6. The distributed control bus device according to claim 1, characterized in that, The output component includes an output bar and multiple output terminals. The output bar is electrically connected to the control component. Multiple conductive holes are provided on the output bar, and the output terminals are inserted into the conductive holes.

7. The distributed control bus device according to claim 6, characterized in that, The cross-sectional area of ​​the output row increases as it approaches the control component.

8. The split-control bus device according to any one of claims 1-7, characterized in that, The input component and the output component are electrically connected to opposite ends of the control component, respectively.

9. The split-control busbar device according to any one of claims 1-7, characterized in that, The combiner cabinet includes a top plate and a bottom plate arranged opposite to each other, and also includes multiple side plates connected between the top plate and the bottom plate. The top plate, the bottom plate and the side plates together form the accommodating space. An operation window communicating with the accommodating space is formed on one of the side plates. Each operation window corresponds to a control component. The control component includes a circuit breaker and a control panel that are electrically connected. The circuit breaker is electrically connected to the input component and the output component. The control panel is embedded in the operation window.

10. The distributed control bus device according to claim 9, characterized in that, The air outlet is located on the top plate, and the air inlet and the operation window are located on the same side plate.

11. The distributed control bus device according to claim 9, characterized in that, The input component includes an input bar and input terminals. The input terminals are electrically connected to the control component through the input bar. The combiner cabinet also has terminal holes that communicate with the accommodating space. The input terminals are inserted into the terminal holes one by one.

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