Novel narrow-mouth bus
Through the optimized design of the new narrow-port busbar, the use of aluminum alloy material and U-shaped copper strip structure, combined with high temperature resistance, corrosion resistance and flame retardant insulation layers, the safety risks and heat dissipation problems of the air busbar are solved, achieving higher current carrying capacity and lower maintenance costs.
Patent Information
- Application Number
- CN202422333523.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-25
AI Technical Summary
Existing air-type busbars are susceptible to physical damage and animal contact in the external environment, which poses safety risks, and traditional designs increase the risk of busbar exposure.
The new narrow-mouth busbar is designed, using aluminum alloy material and U-shaped copper strip structure, combining high-temperature, corrosion-resistant and flame-retardant insulation layers to optimize the structure and material composition of the busbar, including the design of the clamp bend and dust-proof cover to reduce exposed parts.
It improves the safety and reliability of the busbar, enhances the heat dissipation performance and current carrying capacity, reduces maintenance costs, adapts to various environmental conditions, and expands the application range.
Smart Images

Figure CN223181465U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrical power engineering, in particular to a new type of narrow-mouth busbar. Background Art
[0002] It is usually used in a power distribution system as a conductor connecting a generator, a transformer, and power distribution equipment (such as switchgear, circuit breakers, etc.), and undertakes important functions of electric energy transmission and distribution.
[0003] Since the air-type busbar is exposed to the external environment, it is easily physically damaged or contacted by animals, which increases the safety risk.
[0004] The traditional air-type busbar adopts a large-opening design and takes power by rotating or pushing in at the end, which increases the risk of the busbar being exposed and is easily physically damaged or contacted by animals. For this reason, the opening size has now been reduced and phase separation is provided, effectively avoiding physical contact and animal contact, thereby reducing related risks.
[0005] The internal part adopts a U-shaped structure copper bar to ensure a good contact surface, improve the current-carrying capacity at the same time, and provide better heat dissipation effect in a limited space. Such a design effectively reduces the space occupation. Summary of the Utility Model
[0006] The purpose of the utility model is to provide a new type of narrow-mouth busbar to solve the above-mentioned disadvantages existing in the prior art.
[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0008] Design a new type of narrow-mouth busbar, including a busbar end connector. A new type of narrow-mouth busbar main body and a dust-proof cover plate are penetrated and arranged inside the busbar end connector. The opening of the new type of narrow-mouth busbar main body and the dust-proof cover plate are mutually covered. Clamping bends are arranged at both ends of the opening of the new type of narrow-mouth busbar main body, and clamping protrusions are arranged at both ends of the dust-proof cover plate. The clamping bends and the clamping protrusions are mutually clamped and fixed;
[0009] A plurality of inner cavities are arranged inside the new type of narrow-mouth busbar main body, and an isolation insulation layer is embedded inside the inner cavity. A copper bar is penetrated and arranged inside the inner cavity of the new type of narrow-mouth busbar main body, and the isolation insulation layer wraps the outside of the copper bar;
[0010] An internal slot is arranged on one side of the outer end of the new type of narrow-mouth busbar main body, and a square nut is fixedly installed inside the internal slot.
[0011] Specifically, the new type of narrow-mouth busbar main body is made of aluminum alloy material.
[0012] Specifically, the copper bar is of a U-shaped structure and is made by cold bending.
[0013] Specifically, the isolation and insulation layer includes a high-temperature resistant layer, a corrosion-resistant layer, a filling layer, and a flame-retardant layer. The inside of the corrosion-resistant layer is a hollow structure, and the filling layer is embedded therein, and the flame-retardant layer is wrapped inside the filling layer. The high-temperature resistant layer is coated on the outside of the corrosion-resistant layer and is in contact with the copper busbar.
[0014] Specifically, the high-temperature resistant layer is made of a ceramic coating material.
[0015] Specifically, the corrosion-resistant layer is made of a phenolic resin material.
[0016] Specifically, the filling layer is made of an epoxy resin adhesive material.
[0017] Specifically, the flame-retardant layer is made of a flame retardant particle material.
[0018] The design scheme proposed by the present utility model has the following beneficial effects during the application process:
[0019] 1. Improve safety: Through optimized design, the exposed part of the busbar is reduced, the risk of physical damage and animal contact is lowered, and the safety and reliability of the system are ensured.
[0020] 2. Enhance heat dissipation performance: By improving the structural design, better heat dissipation effect can be achieved in a limited space, and the working efficiency and service life of the busbar are improved.
[0021] 3. Increase current-carrying capacity: By adopting a U-shaped copper busbar and optimizing the contact surface, the current-carrying capacity of the busbar is increased to meet higher power requirements.
[0022] 4. Reduce maintenance cost: By reducing vulnerable components and optimizing the design, the frequency of maintenance and cleaning is reduced, and the later operation and maintenance costs are saved.
[0023] 5. Improve adaptability: For various environmental conditions, a busbar system more adaptable to harsh environments such as humidity and corrosion is designed, and the application range is expanded. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0025] Figure 2 is a schematic diagram of the overall cross-section of the present utility model;
[0026] Figure 3 is a schematic diagram of the composition of the isolation and insulation layer of the present utility model.
[0027] In the figure: 1. Busbar end connector; 2. New type narrow-mouth busbar body; 3. Copper bar; 4. Isolation insulation layer; 5. Square nut; 6. Dust-proof cover plate; 41. High-temperature resistant layer; 42. Corrosion-resistant layer; 43. Filling layer; 44. Flame-retardant layer. Detailed implementation mode
[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.
[0029] Refer to Figures 1-3 , the new type narrow-mouth busbar includes a busbar end connector 1. The inside of the busbar end connector 1 is penetrated with a new type narrow-mouth busbar body 2 and a dust-proof cover plate 6. The opening of the new type narrow-mouth busbar body 2 and the dust-proof cover plate 6 cover each other. And both ends of the opening of the new type narrow-mouth busbar body 2 are provided with card head bends, and both ends of the dust-proof cover plate 6 are provided with card head protrusions. The card head bends and the card head protrusions are clamped and fixed to each other. The dust-proof cover plate 6 fits perfectly with the busbar and is detachable, which is convenient for users to quickly remove it when maintenance or power taking is required. In the case of unused circuits, the busbar can be closed to play a role of isolation and protection, and play a role of dust-proof and electricity-isolating protection;
[0030] The inside of the new type narrow-mouth busbar body 2 is provided with a plurality of inner cavities, and an isolation insulation layer 4 is embedded inside the inner cavity. A copper bar 3 is penetrated inside the inner cavity of the new type narrow-mouth busbar body 2, and the isolation insulation layer 4 wraps the outside of the copper bar 3;
[0031] One side of the outer end of the new type narrow-mouth busbar body 2 is provided with an internal slot, and a square nut 5 is fixedly installed inside the internal slot, which plays a role of connecting and fastening the busbar and the hanging rod to each other.
[0032] Busbar end connector 1: It plays a role in fixing the copper bar 3, giving the busbar connector 1 a stable connection, strengthening the mechanical strength of the single-section double-end of the busbar, providing power phase line separation, and the end connector can be disassembled by unscrewing the bolt.
[0033] Mechanical support: The connector provides the necessary mechanical support to ensure the stability of the busbar during installation and use, and avoid displacement or damage caused by vibration or external force.
[0034] Safety protection: Through design, the connector can prevent electrical short-circuit problems and improve the safety of the system.
[0035] Easy to maintain: The end connector is designed to be detachable, which is convenient for regular inspection, maintenance and replacement, and reduces the maintenance difficulty.
[0036] New Narrow-mouth Busbar Body 2: The busbar body can be flexibly configured through the square nuts above. It can be fixed with a single hanging rod, or a balance plate can be added and fixed with double hanging rods, or it can be fixed and supported by a cross arm. At the same time, notches for placing network wires and control lines are reserved on both sides, and a grooved channel is set. The material is an aluminum alloy shell, which increases its heat dissipation capacity, enhances corrosion resistance and mechanical strength, and extends its service life. Through the grid-type opening setting, the opening is reduced, the exposure of the copper bar is reduced, and the risks of electric shock and physical damage are lowered.
[0037] Compact Design: The narrow-mouth design enables the busbar to be effectively installed in environments with limited space, saving installation space.
[0038] Improved Safety: By reducing the opening and improving the structural design, the exposed part is reduced, and the risks of electric shock and physical damage are lowered.
[0039] Excellent Heat Dissipation Performance: The busbar body is made of aluminum alloy, which enhances the heat dissipation capacity and ensures that it will not overheat under high load conditions.
[0040] Flexible Configuration: It can be customized according to specific application requirements, supporting multiple installation methods and connection forms.
[0041] Strong Durability: High-quality materials and processes are used, which enhance corrosion resistance and mechanical strength and extend the service life.
[0042] Further, it should be noted that the new narrow-mouth busbar body 2 is made of aluminum alloy material.
[0043] Further, it should be noted that the copper bar 3 has a U-shaped structure and is made by cold bending.
[0044] Copper Bar 3: A cold bending forming device is used to integrally form the copper bar. At the same time, the required space height of the copper bar is reduced. At the same time, the U-shaped copper bar provides a larger contact area, improving the current-carrying capacity of the copper bar. The U-shaped structure has better mechanical strength and can better withstand external pressure and vibration, increasing the stability of the system.
[0045] Enhanced Current-carrying Capacity: The U-shaped structure provides a larger contact area, thus enhancing the current-carrying capacity of the copper bar and meeting high-power requirements.
[0046] Space Saving: The U-shaped copper bar structure can provide a higher current-carrying capacity in a limited space and is suitable for application scenarios with limited space.
[0047] Improved Mechanical Strength: The U-shaped copper bar design has better mechanical strength, can better withstand external pressure and vibration, and increases the stability of the system.
[0048] Easy to Install: The U-shaped structure is relatively simple, and the installation process is more convenient, reducing installation time and cost.
[0049] Through optimized design, the exposed part of the busbar is reduced, the risk of physical damage and animal contact is lowered, and the safety and reliability of the system are ensured.
[0050] Furthermore, it should be noted that the isolation insulation layer 4 includes a high-temperature resistant layer 41, a corrosion-resistant layer 42, a filling layer 43, and a flame retardant layer 44. The inside of the corrosion-resistant layer 42 is a hollow structure, and the filling layer 43 is embedded therein, and the flame retardant layer 44 is wrapped inside the filling layer 43. The high-temperature resistant layer 41 is coated on the outside of the corrosion-resistant layer 42 and is in contact with the copper busbar 3.
[0051] Isolation insulation layer 4: Plays an isolation and protection role. Made of corrosion-resistant insulating materials, it increases the internal impact resistance and extends its service life. At the same time, with a convenient installation method, it is more convenient to assemble, reducing the installation time and cost.
[0052] Isolation protection: Effectively isolates the live copper busbar from the non-live busbar body, reduces the risk of electric shock, and ensures the safety of operators and equipment.
[0053] Mechanical protection: Provides protection for the internal copper busbar to prevent external impact and physical damage.
[0054] Anti-corrosion: Uses corrosion-resistant materials to ensure stability and reliability in harsh environments.
[0055] Easy to install: The design of the isolation insulation layer facilitates the assembly of the copper busbar and the main body, simplifying the installation process.
[0056] Furthermore, it should be noted that the high-temperature resistant layer 41 is made of ceramic coating material. The ceramic coating has extremely high high-temperature resistance and can maintain stable physical and chemical properties in a high-temperature environment above 1000°C. The ceramic coating also has good antioxidant and wear-resistant properties.
[0057] Furthermore, it should be noted that the corrosion-resistant layer 42 is made of phenolic resin material, which has good acid and alkali resistance and electrical insulation properties. The cured phenolic resin has high mechanical strength.
[0058] Furthermore, it should be noted that the filling layer 43 is made of epoxy resin glue material, which has good chemical corrosion resistance and electrical insulation properties. The cured epoxy resin has high mechanical strength and bonding properties.
[0059] Furthermore, it should be noted that the flame retardant layer 44 is made of flame retardant particle material and can be filled internally. In case of fire or nature, it can effectively retard the flame and slow down the spread of the fire.
[0060] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, making equivalent substitutions or changes should be covered within the protection scope of the present utility model.
Claims
1. A new type of narrow-mouth busbar, including a busbar end connector (1), characterized in that: The interior of the busbar end connector (1) is penetrated by a new type of narrow-mouth busbar body (2) and a dust-proof cover plate (6). The opening of the new type of narrow-mouth busbar body (2) and the dust-proof cover plate (6) are arranged to cover each other. At both ends of the opening of the new type of narrow-mouth busbar body (2), there are card head bends, and at both ends of the dust-proof cover plate (6), there are card head protrusions. The card head bends and the card head protrusions are snap-fitted and fixed to each other; Inside the new type of narrow-mouth busbar body (2), there are several inner cavities, and an isolation insulation layer (4) is embedded inside the inner cavities. A copper busbar (3) is penetrated inside the inner cavities of the new type of narrow-mouth busbar body (2), and the isolation insulation layer (4) wraps the outside of the copper busbar (3); On one side of the outer end of the new type of narrow-mouth busbar body (2), there is an internal slot, and a square nut (5) is fixedly installed inside the internal slot.
2. The novel narrow-mouth busbar according to claim 1, wherein: The new type of narrow-mouth busbar body (2) is made of aluminum alloy material.
3. The novel narrow-mouth busbar according to claim 1, characterized in that: The copper busbar (3) has a U-shaped structure and is made by cold bending.
4. The novel narrow-mouth busbar according to claim 1, characterized in that: The isolation insulation layer (4) includes a high-temperature resistant layer (41), a corrosion-resistant layer (42), a filling layer (43), and a flame-retardant layer (44). The inside of the corrosion-resistant layer (42) is a hollow structure and embeds a filling layer (43). Inside the filling layer (43), there is a flame-retardant layer (44) wrapped. The high-temperature resistant layer (41) is coated on the outside of the corrosion-resistant layer (42), and the high-temperature resistant layer (41) is in contact with the copper busbar (3).
5. The novel narrow-mouth busbar according to claim 4, characterized in that: The high-temperature resistant layer (41) is made of ceramic coating material.
6. The novel narrow-mouth busbar according to claim 4, wherein: The corrosion-resistant layer (42) is made of phenolic resin material.
7. The novel narrow-mouth busbar according to claim 4, characterized in that: The filling layer (43) is made of epoxy resin glue material.
8. The novel narrow-mouth busbar according to claim 4, characterized in that: The flame-retardant layer (44) is made of flame retardant particle material.