CN206461226U - A kind of compact plug-in type busbar channel being used in switch cubicle - Google Patents

Abstract

The utility model discloses a trough-shaped busbar, in particular to a compact plug-in trough-shaped busbar used in switch cabinets, belonging to the technical field of electrical switch cabinet devices; the compact plug-in busbar used in switch cabinets The trough-shaped bus bar includes a plurality of bus bars and a shell protection body for bus bar protection and packaging. The bus bar includes a main conductor for conducting electricity, and the main body is wrapped with at least one layer of insulating layer; a switch for the utility model The compact plug-in trough busbar in the cabinet can completely replace the confluence bare busbar used in the cabinet in the past. It is a compact, low energy consumption, maintenance-free, safe and reliable plug-in trough busbar used in switchgear.

Description

A compact plug-in grooved busbar used in switchgear

technical field

The utility model relates to a trough-shaped busbar, in particular to a compact plug-in trough-shaped busbar used in a switch cabinet, and belongs to the technical field of electric switch cabinet devices.

Background technique

With the upgrading of power transmission and distribution equipment in the power industry and the development of modern science and technology, the application of new technologies, new processes, and new materials has achieved considerable development. Therefore, it is necessary to optimize the design, develop miniaturized products, improve the function integration plug-in application, make the electrical equipment products compact and easy to assemble, so as to realize the integrated plug-in combination of switchgear, reduce the volume of switchgear, reduce loss and reduce cost , safe and reliable performance, convenient installation and maintenance, etc.

As a new type of power distribution busbar, the plug-in busbar has emerged at the historic moment. Compared with the traditional bare busbar, it fully demonstrates its superiority in the transmission of large currents. The contact resistance and temperature rise of the connection at both ends of the bus duct and the plug-in of the branch line, and the use of high-quality insulating materials in the bus duct, thereby improving the safety and reliability of the bus duct and making the whole system more perfect.

Contents of the invention

The purpose of the invention of this utility model is to provide a compact, low energy consumption, maintenance-free, reliable safety performance plug-in grooved busbar in switchgear as a substitute for the bare busbar in view of the above existing problems.

The technical scheme that the utility model adopts is as follows:

A compact plug-in trough-shaped busbar used in a switchgear, including multiple busbars and a protective shell for busbar protection and packaging, the busbar includes a main conductor for electrical conduction, and the main body is wrapped with at least A layer of insulation. The trough-shaped busbar has a compact appearance and small volume, and enhances the dynamic and thermal stability of the busbar, so that the busbar has the characteristics of low impedance, small voltage drop, low loss and large capacity.

The utility model relates to a compact plug-in groove-shaped busbar used in a switch cabinet. The cross-section of the plug-in terminal of the busbar is rounded.

The utility model relates to a compact plug-in groove-shaped busbar used in a switchgear. The outside of the main body is wrapped with multi-layer insulating layers in forward and reverse directions. The wrapping effect of the insulation layer can be better and durable by wrapping in the forward and reverse directions.

Further, the insulating layer cross-wraps the first insulating layer, the second insulating layer and the third insulating layer in front and back. The design of the three-layer insulation layer structure not only ensures the insulation effect, but also ensures that the cross-sectional area will not be too large.

Further, the insulating layer is made of American DuPont polyester film insulating material. This material has good high temperature resistance and aging resistance, as well as high dielectric properties.

The utility model relates to a compact plug-in groove-shaped busbar used in a switch cabinet. The outer shell protective layer is made of aluminum-magnesium alloy drawing material. It has great support strength, and the protection level reaches above IP65.

The utility model relates to a compact plug-in groove-shaped busbar used in a switch cabinet. The main conductor is made of copper-aluminum interface alloy composite conductor material.

Further, the copper-aluminum interface alloy composite includes an aluminum material and a copper material sheathed on the aluminum material, and the contact surface of the aluminum material and the copper material forms a copper-aluminum alloy interface layer. The density of this conductor material is only 37% of that of pure copper conductor material. The length (volume) of the same weight is 2.5 times that of a pure copper conductor.

To sum up, due to the adoption of the above technical solution, the beneficial effect of the utility model is that a compact plug-in groove busbar used in the switchgear of the utility model can completely replace the bus bar used in the previous cabinet. bus, and has the following advantages:

1. High strength and light weight: the shell is made of aluminum-magnesium alloy material, which has great support strength; the conductor busbar is made of copper-aluminum interface alloy composite conductor material, and the density of this conductor material is only 37% of that of pure copper conductor material. %. The length (volume) of the same weight is 2.5 times that of a pure copper conductor;

2. Large capacity, low impedance, small voltage drop, and low loss: the busbar adopts a reasonable compact overlapping structure design, and the slot-shaped busbar has a compact appearance and small volume, and enhances the dynamic and thermal stability of the busbar, so that the busbar has low impedance. The characteristics of small voltage drop, low loss and large capacity;

3. Good insulation performance and high voltage resistance: the insulation medium of the busbar is mainly insulated by American DuPont polyester film polymer insulation material, which has good high temperature resistance and aging resistance, as well as high dielectric performance;

4. High protection level and trendy appearance: the shell adopts aluminum-magnesium alloy material set structure, advanced technology, and the appearance of the grooved busbar is trendy; the protection level reaches above IP65;

5. Easy installation and maintenance-free: Through careful research and development and design, the connection between the overall plug-in groove busbar and the main switch and circuit breaker adopts advanced plug-in connection technology, which is easy to install. The overall busbar and branch busbars have strong electrical conductivity, which greatly improves their load capacity, ensures safe operation, and is maintenance-free.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a structural schematic diagram of a cross-section of a busbar;

Fig. 3 is a structural schematic diagram of the cross-section of the main conductor of the busbar of the utility model.

Marks in the figure: 1-main conductor, 2-first insulating layer, 3-second insulating layer, 4-third insulating layer, 5-housing protection layer, 6-aluminum material, 7-copper-aluminum interface alloy layer, 8 - Copper.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in detail.

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Example 1

A compact plug-in grooved busbar used in a switchgear, as shown in Figure 1, includes multiple busbars and a shell protective layer 5 for busbar protection and packaging, and the busbar includes a conductive main conductor 1 , the main conductor 1 is wrapped with an insulating layer. The busbar protects the busbar from being bare-mounted and exposed by wrapping the insulating layer, and uses the shell protective layer 5 to protect the busbar, so that the arrangement of the busbar is more compact, the structure is simpler, and it is more practical.

Specifically, the cross-section of the plug-in terminal of the busbar is circular. It is beneficial for the busbar to be plugged into the busbar slot provided on the cabinet body.

Of course, when the wrapping effect of one layer of insulating layer is not good, it not only affects the insulating effect, but also affects its service life. Therefore, in another specific embodiment, the main conductor 1 is wrapped with multiple layers of insulating layers in both forward and reverse directions. It can make the wrapping effect better and the insulation performance better. Preferably, as an implementation, as shown in FIG. 2 , the insulating layer cross-wraps the first insulating layer 2 , the second insulating layer 3 and the third insulating layer 4 front and back. Three layers work best. The insulating layer wraps the main conductor 1 in the following three ways:

1. The first insulating layer 2 is wrapped in the forward direction, the second insulating layer 3 is wrapped in the reverse direction, and the third insulating layer 4 is wrapped in the forward direction;

2. The first insulating layer 2 is wrapped in reverse, the second insulating layer 3 is wrapped in a forward direction, and the third insulating layer 4 is wrapped in reverse;

3. The first insulating layer 2 , the second insulating layer 3 and the third insulating layer 4 are all wrapped forwardly or backwardly.

The design of three-layer cross-wrapping will reduce the cross-sectional area of the busbar, and in order to improve the service life of the insulating layer, improve the practicability of the entire grooved busbar, and reduce maintenance costs, in another specific embodiment, the insulating layer Made of American Dupont polyester film insulation material. American DuPont polyester film polymer insulating material has good high temperature resistance and aging resistance, as well as high dielectric properties.

Under the above-mentioned design principles, in order to further protect the trough-shaped busbar and avoid affecting the quality of the busbar due to unexisting factors, in another specific embodiment, the outer shell protection layer 5 is made of aluminum-magnesium alloy drawing material. The shell is made of aluminum-magnesium alloy material, which has great support strength, and the density of this conductor material is only 37% of that of pure copper conductor material. The length (volume) of the same weight is 2.5 times that of a pure copper conductor.

Among conventional busbars, the main conductor 1 of the busbar is often made of copper or aluminum, but in the present utility model, in order to further improve the structure and reduce the weight, in one specific embodiment, the main conductor 1 is made of copper The aluminum interface alloy composite conductor material is manufactured and formed. Specifically, as shown in FIG. 3, the copper-aluminum interface alloy composite includes an aluminum material 6 and a copper material 8 set outside the aluminum material, and the contact surface of the aluminum material 6 and the copper material 8 forms a copper-aluminum alloy interface layer 7.

To sum up, the compact plug-in grooved busbar used in the switch cabinet of the present utility model can completely replace the confluence bare busbar used in the cabinet in the past, and has the following advantages:

1. High strength and light weight: the shell is made of aluminum-magnesium alloy material, which has great support strength; the conductor busbar is made of copper-aluminum interface alloy composite conductor material, and the density of this conductor material is only 37% of that of pure copper conductor material. %. The length (volume) of the same weight is 2.5 times that of a pure copper conductor;

2. Large capacity, low impedance, small voltage drop, and low loss: the busbar adopts a reasonable compact overlapping structure design, and the slot-shaped busbar has a compact appearance and small volume, and enhances the dynamic and thermal stability of the busbar, so that the busbar has low impedance. The characteristics of small voltage drop, low loss and large capacity;

3. Good insulation performance and high voltage resistance: the insulation medium of the busbar is mainly insulated by American DuPont polyester film polymer insulation material, which has good high temperature resistance and aging resistance, as well as high dielectric performance;

4. High protection level and trendy appearance: the shell adopts aluminum-magnesium alloy material set structure, advanced technology, and the appearance of the grooved busbar is trendy; the protection level reaches above IP65;

5. Easy installation and maintenance-free: Through careful research and development and design, the connection between the overall plug-in groove busbar and the main switch and circuit breaker adopts advanced plug-in connection technology, which is easy to install. The overall busbar and branch busbars have strong electrical conductivity, which greatly improves their load capacity, ensures safe operation, and is maintenance-free.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (8)

1. a kind of compact plug-in type busbar channel being used in switch cubicle, it is characterised in that：Including many branch bus and for mother The shell protective layer that line is protected and is set with（5）, the bus is including being used for conductive leading body（1）, the leading body（1）Outer wrapping There is at least one layer of insulating barrier.

2. a kind of compact plug-in type busbar channel being used in switch cubicle as claimed in claim 1, it is characterised in that：It is described Bus grafting termination section is round edge shape.

3. a kind of compact plug-in type busbar channel being used in switch cubicle as claimed in claim 1, it is characterised in that：It is described Leading body（1）Outer forward and reverse wrapped multiple insulating barrier.

4. a kind of compact plug-in type busbar channel being used in switch cubicle as claimed in claim 3, it is characterised in that：It is described Positive and negative the first insulating barrier for intersecting parcel of insulating barrier（2）, the second insulating barrier（3）With the 3rd insulating barrier（4）.

5. a kind of compact plug-in type busbar channel being used in switch cubicle as claimed in claim 1, it is characterised in that：It is described Insulating barrier is made up of Dupont polyester film insulating materials.

6. a kind of compact plug-in type busbar channel being used in switch cubicle as claimed in claim 1, it is characterised in that：It is described Shell protective layer（5）It is made up of almag pulling shaping material.

7. a kind of compact plug-in type busbar channel being used in switch cubicle as claimed in claim 1, it is characterised in that：It is described Leading body（1）It is to be made to be molded by copper aluminium interface alloy composite conductor material.

8. a kind of compact plug-in type busbar channel being used in switch cubicle as claimed in claim 7, it is characterised in that：It is described Copper aluminium interface alloy complex includes aluminium（6）With the copper material being placed on outside aluminium（8）, the aluminium（6）And copper material（8）Contact Face forms albronze boundary layer（7）.