An aluminum-based power busbar
By designing a multi-layered structure and detection device, the problems of oxidation, reduced conductivity, and low heat dissipation efficiency of aluminum-based power buses have been solved, achieving high conductivity, safety, and real-time detection capabilities.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TANGSHAN WANHAI CABLE CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-06-30
Smart Images

Figure CN224437252U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of power transmission system components, and in particular to an aluminum-based power busbar. Background Technology
[0002] In modern power transmission and distribution systems, busbars are key components for transmitting electrical energy, and their performance directly affects the stability and efficiency of power transmission. Aluminum-based power busbars were developed based on copper-based power busbars due to the relatively stable price of aluminum and the fact that aluminum is an excellent electrical conductor.
[0003] However, existing aluminum-based power busbars have many problems in practical use. On the one hand, aluminum-based power busbars are exposed to the external environment for a long time, and dust and moisture in the air can easily cause them to oxidize, reducing their conductivity. Impurities in the air may also cause fires, resulting in poor safety. On the other hand, in terms of heat dissipation, traditional aluminum-based power busbars have low heat dissipation efficiency, which leads to excessively high busbar temperatures during high-load operation, affecting their service life and power transmission performance. At the same time, existing busbars do not have the ability to detect heat changes and short circuits in the busbar area during use. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an aluminum-based power busbar.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An aluminum-based power busbar includes an inner sheath containing multiple cables. A copper plate is located on one side wall of the inner sheath, and an aluminum plate is located on one side of the copper plate. An alloy guide plate is located on the side wall of the aluminum plate. A positioning mechanism for positioning the copper plate is provided between the inner sheath and the copper plate. A fire-resistant insulation layer is located on the side wall of the alloy guide plate. A light-resistant insulation layer is located on the side wall of the fire-resistant insulation layer. A fire-resistant layer is located on one side of the light-resistant insulation layer. A flame-retardant layer is located on one side of the fire-resistant layer. A waterproof layer is located on the outer wall of the flame-retardant layer. Multiple equally spaced connection holes are provided on one side of the flame-retardant layer. A detection mechanism for detecting internal protrusions is provided at each connection hole.
[0007] Preferably, the positioning mechanism includes multiple fitting grooves formed on the outer wall of the inner wrapping layer, and multiple circumferentially arranged mating blocks are fixedly connected to the inner side of the copper plate, with the fitting grooves cooperating with the mating blocks.
[0008] Preferably, the detection mechanism includes a probe head that is slidably connected in the connection hole, and the side wall of the probe head is provided with a plurality of equally spaced detection slots.
[0009] Preferably, a plurality of fitting rings are fixedly connected to one side of the flame-retardant layer, a sealing tube is fixedly connected to one side of the fitting ring, one side of the fitting ring extends into the connection hole, the probe is slidably connected through the sealing tube, and an installation ring is fixedly connected to one side of the sealing tube.
[0010] Preferably, a push spring is fixedly connected to one side of the fitting ring, the push spring is sleeved on the side wall of the probe head, and a signal line is provided on one side of the probe head.
[0011] Preferably, a sealing block is fixedly connected to the side wall of the probe, the sealing block is slidably connected inside the sealing tube, and the end of the push spring away from the fitting ring is fixedly connected to the sealing block.
[0012] Compared with the prior art, the advantages of this utility model are as follows:
[0013] 1. This utility model is equipped with an inner wrapping layer, a copper plate, an aluminum plate, an alloy guide plate, a fire-resistant insulation layer, and a light insulation layer. By wrapping the inner wrapping layer with multiple layers of flat metal structures, the electrical performance can be improved, the surface area of the conductor can be increased, and the conductivity can be enhanced. Furthermore, the fire-resistant insulation layer and multiple flame-retardant layers can improve the insulation and fire resistance of the conductor. With the help of the waterproof layer, the drip-proof effect can be achieved, avoiding the problem of affecting the ground.
[0014] 2. This utility model is equipped with a sealing tube, a connecting hole, a mounting ring, a fitting ring, a probe, and a push spring. The push spring drives the probe to extend into the connecting hole. Multiple probe slots can be used to detect the multi-layer metal structure, which can monitor the short circuits and sudden hot spots of the structure. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the main structure of an aluminum-based power busbar proposed in this utility model;
[0016] Figure 2 This is a side view of an aluminum-based power busbar proposed in this utility model.
[0017] Figure 3 This is a schematic diagram of the internal structure of the sealing tube of an aluminum-based power busbar proposed in this utility model;
[0018] Figure 4 This is a schematic diagram of the probe structure for an aluminum-based power busbar proposed in this utility model.
[0019] In the diagram: 1 Inner wrapping layer, 2 Cable, 3 Adhesion groove, 4 Mating block, 5 Copper plate, 6 Aluminum plate, 7 Alloy guide plate, 8 Fire-resistant insulation layer, 9 Optical insulation layer, 10 Fire-resistant layer, 11 Flame-retardant layer, 12 Sealing tube, 13 Mounting ring, 14 Sealing block, 15 Signal line, 16 Adhesion ring, 17 Probe head, 18 Push spring, 19 Probe groove. Detailed Implementation
[0020] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0021] Reference Figure 1-4 An aluminum-based power busbar includes an inner layer 1, with multiple cables 2 inside the inner layer 1. A copper plate 5 is provided on the side wall of the inner layer 1, and an aluminum plate 6 is provided on one side of the copper plate 5. An alloy guide plate 7 is provided on the side wall of the aluminum plate 6. A positioning mechanism for positioning the copper plate 5 is provided between the inner layer 1 and the copper plate 5. The positioning mechanism includes multiple fitting grooves 3 opened on the outer side wall of the inner layer 1. Multiple circumferentially arranged mating blocks 4 are fixedly connected to the inner side of the copper plate 5, and the fitting grooves 3 and the mating blocks 4 cooperate with each other.
[0022] The side wall of the alloy guide plate 7 is provided with a fire-resistant insulating layer 8, the side wall of the fire-resistant insulating layer 8 is provided with a light insulating layer 9, one side of the light insulating layer 9 is provided with a fire-resistant layer 10, one side of the fire-resistant layer 10 is provided with a flame-retardant layer 11, one side of the flame-retardant layer 11 is fixedly connected with a plurality of fitting rings 16, one side of the fitting rings 16 is fixedly connected with a push spring 18, the push spring 18 is sleeved on the side wall of the probe head 17, one side of the probe head 17 is provided with a signal line 15, one side of the probe head 17 is fixedly connected with a sealing block 14, the sealing block 14 is slidably connected in the sealing tube 12, and the end of the push spring 18 away from the fitting rings 16 is fixedly connected to the sealing block 14.
[0023] A sealing tube 12 is fixedly connected to one side of the fitting ring 16, and one side of the fitting ring 16 extends into the connection hole. The probe head 17 is slidably connected inside the sealing tube 12, and an installation ring 13 is fixedly connected to one side of the sealing tube 12.
[0024] The outer wall of the flame-retardant layer 11 is provided with a waterproof layer. A plurality of equally spaced connection holes are provided on one side of the flame-retardant layer 11. A detection mechanism for detecting internal protrusions is provided at the connection holes. The detection mechanism includes a probe head 17 that is slidably connected in the connection hole. A plurality of equally spaced detection grooves 19 are provided on the side wall of the probe head 17.
[0025] When using this utility model, such as Figure 1-4 As shown, in use, the inner layer 1 first provides contact protection for the cable 2. Then, copper plate 5, aluminum plate 6, and alloy plate 7 (the alloy plate can be made of alloy metal materials with good conductivity and certain strength, such as aluminum alloy or copper alloy, which provides a certain supporting strength for the busbar while ensuring its conductivity) are gradually added. This multi-layer metal plate structure of the busbar can improve the conductor performance of the busbar and provide support. Simultaneously, the mating groove 3 and mating block 4 provide contact positioning and, due to their contact connection, also achieve heat dissipation, facilitating the heat dissipation process of the internal structural layers. The inner fire insulation layer 8, light insulation layer 9, fire-resistant layer 10, and resistive layer... The combustion layer 11 serves to insulate against light, provide fire resistance, and prevent dripping, thus avoiding the problem of dripping onto the ground and causing further combustion. Multiple probes 17 are then placed inside the connecting holes. The fitting ring 16 and the sealing tube 12 provide a sealing contact with the probes 17. Simultaneously, under the traction of the push spring 18, the probes 17 are brought into contact with the connecting holes, ensuring that the multiple probe slots 19 and the multiple structural layers make positioning contact detection, thereby guaranteeing the detection effect and quality. The probes 17 drive the sealing block 14 to slide into contact with the sealing tube 12, sealing the sealing tube 12 and simultaneously providing a contact seal between the probes 17 and the sealing tube 12.
[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An aluminum-based power busbar, comprising an inner sheath (1), characterized in that, The inner wrapping layer (1) contains multiple cables (2). The inner wrapping layer (1) has a copper plate (5) on its side wall and an aluminum plate (6) on one side of the copper plate (5). The aluminum plate (6) has an alloy guide plate (7) on its side wall. A positioning mechanism for positioning the copper plate (5) is provided between the inner wrapping layer (1) and the copper plate (5). The alloy guide plate (7) has a fire-resistant insulating layer (8) on its side wall and a light insulating layer (9) on its side wall. A fire-resistant layer (10) is provided on one side of the light insulating layer (9). A flame-retardant layer (11) is provided on one side of the fire-resistant layer (10). A waterproof layer is provided on the outer wall of the flame-retardant layer (11). A plurality of equally spaced connection holes are provided on one side of the flame-retardant layer (11). A detection mechanism for detecting internal protrusions is provided at the connection holes.
2. The aluminum-based power busbar according to claim 1, characterized in that, The positioning mechanism includes multiple fitting grooves (3) formed on the outer wall of the inner wrapping layer (1), and multiple circumferentially arranged mating blocks (4) are fixedly connected to the inner side of the copper plate (5), and the fitting grooves (3) and the mating blocks (4) cooperate with each other.
3. The aluminum-based power busbar according to claim 2, characterized in that, The detection mechanism includes a probe head (17) that is slidably connected in the connection hole, and the side wall of the probe head (17) is provided with a plurality of equally spaced detection slots (19).
4. The aluminum-based power busbar according to claim 3, characterized in that, A plurality of fitting rings (16) are fixedly connected to one side of the flame retardant layer (11), and a sealing tube (12) is fixedly connected to one side of the fitting ring (16). One side of the fitting ring (16) extends into the connection hole. The probe (17) is slidably connected through the sealing tube (12). An installation ring (13) is fixedly connected to one side of the sealing tube (12).
5. The aluminum-based power busbar according to claim 4, characterized in that, A push spring (18) is fixedly connected to one side of the fitting ring (16). The push spring (18) is sleeved on the side wall of the probe head (17). A signal line (15) is provided on one side of the probe head (17).
6. The aluminum-based power busbar according to claim 5, characterized in that, A sealing block (14) is fixedly connected to the side wall of the probe (17), and the sealing block (14) is slidably connected inside the sealing tube (12). The end of the push spring (18) away from the fitting ring (16) is fixedly connected to the sealing block (14).