Conflux cabinet
By installing a dedicated fire suppression system in the combiner cabinet to precisely extinguish fires in both AC and DC areas, the problem of untimely fire suppression in existing technologies has been solved, achieving rapid and effective fire suppression and improving safety.
Patent Information
- Application Number
- CN202422734921.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-08
AI Technical Summary
In the event of an electrical fire inside the combiner cabinet, existing fire extinguishing devices cannot accurately enter the combiner cabinet, resulting in unsatisfactory fire extinguishing effects and posing significant safety hazards.
The first and second fire-fighting devices are installed in the combiner cabinet, respectively, in the chambers of the AC control component and the DC combiner component. They use thermal wires to detect fires in real time and activate the spraying of extinguishing agents to achieve precise fire suppression in different areas.
It enables rapid and precise fire suppression in both AC and DC areas within the combiner cabinet, improving safety and fire suppression efficiency, and avoiding hazards caused by delayed fire suppression.
Smart Images
Figure CN223540085U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of battery technology, specifically to a combiner cabinet. Background Technology
[0002] In related technologies, the combiner cabinet is not equipped with fire extinguishing devices. Smoke and heat detectors are only installed in the electrical compartment (the space where the combiner cabinet is installed). If an electrical fire occurs inside the combiner cabinet, the fire extinguishing materials in the electrical compartment can only be sprayed inside the electrical compartment and cannot accurately enter the combiner cabinet, resulting in an unsatisfactory fire extinguishing effect and a significant safety hazard. Utility Model Content
[0003] The embodiments of this application provide a junction box that can improve the technical problem of untimely fire extinguishing in junction boxes.
[0004] This application provides a combiner cabinet, including:
[0005] The cabinet contains a first chamber and a second chamber.
[0006] An AC control assembly is located in the first chamber;
[0007] A first fire-fighting device is installed in the first chamber and is used to extinguish the fire in the AC control components;
[0008] A DC bus assembly is located in the second chamber;
[0009] The second fire-fighting device is located in the second chamber and is used to extinguish the fire in the DC bus assembly.
[0010] In some embodiments, the cabinet includes a top plate and a first partition spaced apart, the top plate and the first partition being arranged along a first direction, the first partition dividing the internal space of the cabinet into a first chamber and a second chamber, the first fire-fighting device including a first fire extinguisher and a first thermal wire, the first fire extinguisher being installed on the side of the top plate facing the first partition, and the first thermal wire being connected to the first fire extinguisher.
[0011] In some embodiments, the AC control component includes a first AC component, the first AC component and the first partition are both arranged along a first direction, and the first thermal wire is partially disposed between the first AC component and the first partition.
[0012] In some embodiments, the AC control component further includes a second AC component, and the cabinet further includes a first side panel connected to the top panel and the first partition. The first side panel and the second AC component are both arranged along a second direction, which is different from the first direction. The first thermal wire is partially disposed between the second AC component and the first side panel.
[0013] In some embodiments, the AC control component includes a third AC component, the cabinet includes a second side panel, the second side panel and the first side panel are disposed opposite to each other, the second side panel and the third AC component are both arranged along a second direction, the second direction is different from the first direction, and the first thermal wire is partially disposed between the third AC component and the second side panel.
[0014] In some embodiments, the cabinet further includes a second partition located within the first chamber and dividing the first chamber into a front receiving space and a rear receiving space. The AC control component further includes a UPS located in the rear receiving space, and a portion of the first thermal wire extends from the front receiving space to the rear receiving space.
[0015] In some embodiments, the cabinet includes a base, which is disposed along a first direction and located on the side of the first partition away from the top plate. The second fire-fighting device further includes a second fire extinguisher and a second thermal wire, wherein the second fire extinguisher is installed on the side of the first partition facing the base, and the second thermal wire is connected to the second fire extinguisher.
[0016] In some embodiments, the DC bus assembly includes a switch disposed at one end of the second chamber near the first partition, and the cabinet further includes a third side plate connected to the base and the first partition, wherein a portion of the second thermal wire is disposed on the side of the third side plate facing the switch.
[0017] In some embodiments, the DC bus assembly further includes a connecting bar, and the cabinet further includes a support plate. The support plate is close to the connecting bar and is disposed along the first direction. A portion of the second thermal wire is close to the connecting bar and extends along the side of the support plate away from the base.
[0018] In some embodiments, the combiner cabinet further includes a battery management unit disposed in the first chamber, the first fire-fighting device and the second fire-fighting device being connected to the battery management unit, and the battery management unit being used to control the first fire-fighting device and the second fire-fighting device.
[0019] The beneficial effects of the embodiments of this application are as follows:
[0020] In the embodiments of this application, the combiner cabinet includes a first fire-fighting device and a second fire-fighting device. The first fire-fighting device is installed in a first chamber for extinguishing fires on the AC control components, and the second fire-fighting device is installed in a second chamber for extinguishing fires on the DC combiner components. Compared to the prior art, the fire-fighting devices are installed separately in the DC and AC chambers of the combiner cabinet, enabling individual spraying of the different DC and AC areas of the combiner cabinet to achieve rapid fire extinguishing. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a front view of the combiner cabinet provided in an embodiment of this application;
[0023] Figure 2 This is a schematic diagram of the combiner cabinet structure provided in the embodiments of this application. Figure 1 ;
[0024] Figure 3 yes Figure 2 An enlarged schematic diagram of part A in the illustrated embodiment;
[0025] Figure 4 This is a schematic diagram of the combiner cabinet structure provided in the embodiments of this application. Figure 2 ;
[0026] Figure 5 yes Figure 4 An enlarged schematic diagram of part B in the illustrated embodiment;
[0027] Figure 6 This is a cross-sectional view of the combiner cabinet provided in the embodiment of this application;
[0028] Figure 7 This is a schematic diagram of the combiner cabinet structure provided in the embodiments of this application. Figure 3 ;
[0029] Figure 8 yes Figure 7 An enlarged schematic diagram of part C in the illustrated embodiment;
[0030] Figure 9 This is a schematic diagram of the combiner cabinet structure provided in the embodiments of this application. Figure 4 ;
[0031] Figure 10 yes Figure 9 An enlarged schematic diagram of part D in the illustrated embodiment.
[0032] Figure label:
[0033] 200. Combiner cabinet;
[0034] 100. Cabinet body; 101. Top panel; 102. First partition; 103. First side panel; 104. Second side panel; 105. Second partition; 106. Base; 107. Third side panel;
[0035] 10. AC control assembly; 1001. First chamber; 11. AC control assembly; 111. First AC assembly; 1111. Circuit breaker; 1112. Distributor; 1113. Relay; 1114. UPS; 112. Second AC assembly; 113. Third AC assembly; 14. First fire-fighting device; 141. First fire extinguisher; 142. First thermal wire;
[0036] 20. DC busbar assembly; 2001. Second chamber; 21. Switch; 22. Connecting bar; 23. Support plate; 24. Second fire-fighting device; 241. Second fire extinguisher; 242. Second thermal wire;
[0037] 30. Battery Management Unit. Detailed Implementation
[0038] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.
[0039] In related technologies, AC power distribution control and communication areas typically house AC components such as lead-acid batteries. These electrical devices age over time, leading to overheating, ablation, and even fires. Similarly, a short circuit in the DC busbar assembly within the DC chamber can generate significant energy, potentially causing an electrical fire. Furthermore, DC busbar assemblies are prone to aging and fires over time. The busbar cabinet itself lacks fire extinguishing equipment; smoke and heat detectors are only installed in the electrical compartment (the space where the busbar cabinet is installed). If an electrical fire occurs inside the busbar cabinet, fire extinguishing sprays are only applied within the compartment, failing to accurately reach the busbar cabinet, resulting in ineffective fire suppression and significant safety hazards.
[0040] Please refer to Figures 1-3 , Figure 1 This is a front view of the combiner cabinet provided in an embodiment of this application. Figure 2 This is a schematic diagram of the combiner cabinet structure provided in the embodiments of this application. Figure 1 , Figure 3 yes Figure 2 The illustrated diagram shows an enlarged view of part A of the embodiment. This application provides a combiner cabinet 200; please refer to... Figures 1-3 The combiner cabinet 200 includes a cabinet body 100, within which a first chamber 1001 and a second chamber 2001 are provided. The combiner cabinet 200 also includes an AC control component 10 and a first fire suppression device 14, both located in the first chamber 1001. The first fire suppression device 14 is used to extinguish fires on the AC control component 10. The combiner cabinet 200 also includes a DC combiner component 20 and a second fire suppression device 24, located in the second chamber 2001, and used to extinguish fires on the DC combiner component 20.
[0041] In this application, the first fire-fighting device 14 is installed in the first chamber 1001 for extinguishing fires in the AC control component 10, and the second fire-fighting device 24 is installed in the second chamber 2001 for extinguishing fires in the DC combiner component 20. Compared with the prior art, the fire-fighting devices are installed in two separate areas, the DC chamber and the AC chamber, within the combiner cabinet 200, enabling separate spraying for the different DC and AC areas of the combiner cabinet 200, achieving a rapid fire-extinguishing effect.
[0042] Please refer to Figures 4-5 , Figure 4 This is a schematic diagram of the combiner cabinet structure provided in the embodiments of this application. Figure 2 , Figure 5 yes Figure 4 The diagram shows an enlarged view of part B of the illustrated embodiment. In some embodiments, the cabinet 100 includes a top plate 101 and a first partition 102 spaced apart, the top plate 101 and the first partition 102 being arranged along a first direction, the first partition 102 dividing the internal space of the cabinet 100 into a first chamber 1001 and a second chamber 2001, the first fire-fighting device 14 including a first fire extinguisher 141 and a first thermal wire 142, the first fire extinguisher 141 being installed on the side of the top plate 101 facing the first partition 102, and the first thermal wire 142 being connected to the first fire extinguisher 141.
[0043] In some examples, the first fire extinguisher 141 consists of a stainless steel casing, a gas generating component, a spraying component, a thermal wire, and a feedback signal wire. The first fire extinguisher 141 is filled with perfluorohexanone extinguishing agent. The ignition temperature of the thermal wire is between 155℃ and 190℃. When the first thermal wire 142 detects a fire in the AC control component 10, the first thermal wire 142 of the flame ignition module is activated. The thermal wire activates the gas generating component in the module. The gas generating component starts rapidly, generating high-pressure gas, which opens the spraying component of the first fire extinguisher 141. The perfluorohexanone extinguishing agent in the first fire extinguisher 141 is instantly ejected from the module by the high-pressure gas, flooding the entire space of the first chamber 1001 of the combiner cabinet 200, thereby extinguishing the fire.
[0044] In existing technologies, because no fire detectors are installed in the combiner cabinet 200, fires cannot be detected in their early stages, leading to delays in fire suppression. However, this application's device integrates automatic fire detection and extinguishing functions. The thermal sensor can accurately monitor the temperature of each device or area in real time, detecting fire hazards immediately. The extinguishing agent can automatically activate and rapidly release within seconds, quickly extinguishing the fire and preventing greater damage.
[0045] In some embodiments, the AC control component 10 includes a first AC component 111, the first AC component 111 and the first partition 102 are both arranged along a first direction, and the first thermal wire 142 is partially disposed between the first AC component 111 and the first partition 102.
[0046] In some examples, the first AC component 111 includes a circuit breaker 1111 and a relay 1113. Both the relay 1113 and the circuit breaker 1111 are electrical control and protection devices. The circuit breaker 1111 is used to prevent overload, short circuit and overheating to ensure the safe operation of the battery. When a short circuit occurs or the current exceeds a set value, the circuit breaker 1111 will quickly disconnect the circuit to avoid fire and equipment damage. The relay 1113 can control a high current circuit with low current or switch the circuit under specific conditions.
[0047] In some examples, the junction box 200 includes a plurality of first stops arranged along a first direction. The first stops are located in the first chamber 1001 and have a first wiring channel. A portion of the first thermal wire 142 extends along the first wiring channel.
[0048] In some embodiments, the AC control component 10 further includes a second AC component 112, and the cabinet 100 further includes a first side panel 103. The first side panel 103 is connected to the top panel 101 and the first partition 102. The first side panel 103 and the second AC component 112 are both arranged along a second direction, which is different from the first direction. The first thermal wire 142 is partially disposed between the second AC component 112 and the first side panel 103.
[0049] In some examples, the first direction can be horizontal and the second direction can be vertical.
[0050] In some examples, the second AC component 112 includes a circuit breaker 1111 and a splitter 1112, the splitter 1112 being used to distribute a single power signal to multiple loads or devices. The splitter 1112 and the circuit breaker 1111 can work together in the electrical system to achieve safe and efficient power management.
[0051] In some examples, the partition includes a second stop disposed along a second direction, the second stop being located between the side plate and the second AC component 112, the second stop having a second wiring channel therein, and a portion of the first thermal wire 142 extending along the second wiring channel.
[0052] In some embodiments, the AC control component 10 includes a third AC component 113, the cabinet 100 includes a second side panel 104, the second side panel 104 and the first side panel 103 are disposed opposite to each other, the second side panel 104 and the third AC component 113 are both arranged along a second direction, and the first thermal wire 142 is partially disposed between the third AC component 113 and the second side panel 104.
[0053] In some examples, the partition includes a third stop disposed along the second direction, the third stop being disposed between the second side plate 104 and the third AC component 113, the third stop having a third wiring channel therein, and a portion of the first thermal wire 142 extending along the third wiring channel.
[0054] Please refer to Figure 6 , Figure 6This is a cross-sectional view of the combiner cabinet provided in an embodiment of this application. In some embodiments, the cabinet 100 further includes a second partition 105, which is located within the first chamber 1001 and divides the first chamber 1001 into a front receiving space and a rear receiving space. The AC control component further includes a UPS 1114, which is located in the rear receiving space. A portion of the first thermal wire 142 extends from the front receiving space to the rear receiving space. The UPS 1114, or Uninterruptible Power Supply, is an uninterruptible power supply containing an energy storage device. It is mainly used to power devices with high power stability requirements. It usually has a built-in voltage stabilization function to protect the device from voltage fluctuations and power surges. The partial extension of the first thermal wire 142 into the rear receiving space allows for better monitoring of the vicinity of the UPS, avoiding damage caused by battery aging.
[0055] In some embodiments, the first thermal line 142 is disposed between the second AC component 112 and the third AC component 113. The first thermal line 142 may also be disposed between the second AC component 112, the third AC component 113 and the first AC component 111. This application does not limit the routing path of the first thermal line 142.
[0056] Please refer to Figures 7-8 , Figure 7 This is a schematic diagram of the combiner cabinet structure provided in the embodiments of this application. Figure 3 , Figure 8 yes Figure 7 The diagram shows an enlarged view of part C in the illustrated embodiment. In some embodiments, the cabinet 100 includes a base 106, which is disposed along a first direction and located on the side of the first partition 102 facing away from the top plate 101. The second fire-fighting device 24 further includes a second fire extinguisher 241 and a second thermal wire 242. The second fire extinguisher 241 is installed on the side of the first partition 102 facing the base 106, and the second thermal wire 242 is connected to the second fire extinguisher 241. The structure of the second fire extinguisher 241 can be the same as that of the first fire extinguisher 141, which will not be repeated here.
[0057] In some embodiments, the DC combiner assembly 20 includes a switch 21. The switch 21 of the combiner cabinet 200 can enable or disable the power supply, ensuring safe operation of the system and preventing overload and short circuit by controlling the current. The switch 21 is disposed at one end of the second chamber 2001 near the first partition 102. The cabinet 100 also includes a third side plate 107, which is connected to the base and the first partition 102. The second thermal wire 242 is partially disposed on the side of the third side plate 107 facing the switch 21.
[0058] In some examples, the junction box 200 also includes multiple fasteners connected to the third side plate 107 and capable of fixing the second thermal wire 242. The fasteners include a fixing structure and an mounting strap. The fixing structure is installed on the third side plate 107 and has fixing holes. The mounting strap passes through the fixing holes and fixes the second thermal wire 242.
[0059] Please refer to Figures 9-10 , Figure 9 This is a schematic diagram of the combiner cabinet structure provided in the embodiments of this application. Figure 4 , Figure 10 yes Figure 9 The diagram shows an enlarged view of part D in the illustrated embodiment. In some embodiments, the DC bus assembly 20 further includes a connector 22, which can combine currents from multiple power sources to form a unified current output. The cabinet 100 also includes a support plate 23, which is located near the connector 22 and is arranged along the first direction. A portion of the second thermal wire 242 is located near the connector 22 and extends along the side of the support plate 23 away from the base.
[0060] In some examples, the combiner cabinet 200 also includes a back plate, to which the support plate 23 is fixedly connected and faces the connection bar 22. It is understood that the combiner cabinet 200 has multiple connection bars 22. Poor contact can easily occur at the connection points between the switch 21 and the connection bar 22, at the connection points of each connection bar 22, and at the connection points between the connection bar 22 and the DC cable, leading to overheating and even fire. The second thermal line 242 extends from the third side wall toward the support plate 23 and extends along the first direction from the other side of the combiner cabinet 200 to ensure that the second thermal line 242 has a longer extension area in the DC combiner area to achieve all-round temperature detection.
[0061] In some embodiments, the combiner cabinet 200 further includes a battery management unit 30, which is disposed in the first chamber 1001. The first fire-fighting device 14 and the second fire-fighting device 24 are connected to the battery management unit 30, and the battery management unit 30 is used to control the first fire-fighting device 14 and the second fire-fighting device 24.
[0062] In some examples, the battery management unit 30 can be a BAMS (Battery Asset Management System), which monitors battery status in a timely manner to reduce safety risks. The first fire-fighting device 14 also includes a first feedback signal line, and the second fire-fighting device 24 also includes a second feedback signal line. The first and second feedback signal lines are connected to the fire control panel and the battery management unit 30. The feedback signal lines send spraying and fire signals to the fire control panel and the battery management unit 30 in the combiner cabinet 200. When the fire control panel receives the fire signal, it activates the alarm. When the battery management unit receives the fire signal, it reports it through the communication EMS (Energy Management System) or PCS (Power Control System) and cuts off the disconnect switch 21 of the combiner cabinet 200, sending a high-voltage command to the energy storage system cluster to provide power-off protection for other devices in the battery system that have not experienced thermal runaway.
[0063] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.
Claims
1. A combiner cabinet, characterized in that, include: The cabinet contains a first chamber and a second chamber. An AC control assembly is located in the first chamber; A first fire-fighting device is installed in the first chamber and is used to extinguish the fire in the AC control components; A DC bus assembly is located in the second chamber; The second fire-fighting device is located in the second chamber and is used to extinguish the fire in the DC bus assembly.
2. The combiner cabinet according to claim 1, characterized in that, The cabinet includes a top plate and a first partition that are spaced apart. The top plate and the first partition are arranged along a first direction. The first partition divides the internal space of the cabinet into a first chamber and a second chamber. The first fire-fighting device includes a first fire extinguisher and a first thermal wire. The first fire extinguisher is installed on the side of the top plate facing the first partition, and the first thermal wire is connected to the first fire extinguisher.
3. The combiner cabinet according to claim 2, characterized in that, The AC control component includes a first AC component, both the first AC component and the first partition are arranged along a first direction, and the first thermal wire is partially disposed between the first AC component and the first partition.
4. The combiner cabinet according to claim 2, characterized in that, The AC control component also includes a second AC component, and the cabinet also includes a first side panel. The first side panel is connected to the top panel and the first partition. The first side panel and the second AC component are both arranged along a second direction, which is different from the first direction. The first thermal wire is partially disposed between the second AC component and the first side panel.
5. The combiner cabinet according to claim 4, characterized in that, The AC control component includes a third AC component, the cabinet includes a second side panel, the second side panel and the first side panel are arranged opposite to each other, the second side panel and the third AC component are both arranged along a second direction, and the first thermal wire is partially disposed between the third AC component and the second side panel.
6. The combiner cabinet according to claim 2, characterized in that, The cabinet also includes a second partition, which is located inside the first chamber and divides the first chamber into a front receiving space and a rear receiving space. The AC control component also includes a UPS, which is located in the rear receiving space. A portion of the first thermal wire extends from the front receiving space to the rear receiving space.
7. The combiner cabinet according to any one of claims 2-6, characterized in that, The cabinet includes a base, which is arranged along a first direction and located on the side of the first partition away from the top plate. The second fire-fighting device also includes a second fire extinguisher and a second thermal wire. The second fire extinguisher is installed on the side of the first partition facing the base, and the second thermal wire is connected to the second fire extinguisher.
8. The combiner cabinet according to claim 7, characterized in that, The DC bus assembly includes a switch located at one end of the second chamber near the first partition. The cabinet also includes a third side panel connected to the base and the first partition. The second thermal wire portion is located on the side of the third side panel facing the switch.
9. The combiner cabinet according to claim 8, characterized in that, The DC bus assembly further includes a connecting bar, and the cabinet further includes a support plate. The support plate is close to the connecting bar and is arranged along the first direction. A portion of the second thermal wire is close to the connecting bar and extends along the side of the support plate away from the base.
10. The combiner cabinet according to claim 1, characterized in that, The combiner cabinet also includes a battery management unit, which is located in the first chamber. The first fire-fighting device and the second fire-fighting device are connected to the battery management unit, which is used to control the first fire-fighting device and the second fire-fighting device.