Multi-functional insulating partition plate for busbar

Abstract

The utility model discloses a kind of multifunctional insulating partition for busbar, including partition main body, the through-hole for supplying electrode point to pass is opened in partition main body, the partition main body is equipped with the isolator of the electrode point of different potential and carries out electrical clearance isolation, the partition main body with the isolator are made of insulating material.The multifunctional insulating partition for busbar, by setting the isolator of insulating between the electrode point of different potential and carrying out electrical clearance isolation, avoid the element damage after the electrical clearance of the electrode point of different potential when laminated busbar is installed becomes small, also discard the cost high, process complex and exist security risk problem of the electrical clearance of relying on redundant processing means in prior art.

Description

Technical Field

[0001] This utility model relates to the field of electrical protection technology for high-voltage and high-power devices in coal mining industrial products, and in particular to a multifunctional insulating partition for busbars. Background Technology

[0002] In the national standards for coal-fired power equipment, there are strict standards for electrical clearance and creepage distance for high-voltage, high-power equipment. However, for high-voltage power devices, the electrical clearance of traditional products on the market is often close to the national standard without leaving a safety margin. When installing various industrial multilayer busbars, the electrical distance between two adjacent electrode points at different potentials is often less than the national safety standard due to the size of the output lead's pressure terminal or the connecting bolt gasket. As a result, during later use, insufficient electrical clearance can cause arcing between the two electrode points at different potentials, thus damaging the equipment.

[0003] To circumvent this, companies typically employ the following methods during production: ① Cutting off excess portions of the wire terminals or connecting bolts; ② Applying adhesive to electrodes located near electrical clearances. Both methods increase labor and material costs, and there remains a risk of oversight during later product maintenance. Utility Model Content

[0004] The purpose of this utility model is to provide a multifunctional insulating partition for busbars, which solves the problems of high cost, complex process and safety hazards in the existing technology of avoiding electrical clearance of high voltage and high power equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A multifunctional insulating partition for busbars includes a partition body with through holes for electrode points to pass through, and an isolation element for electrically isolating electrode points at different potentials. Both the partition body and the isolation element are made of insulating material.

[0007] Preferably, the isolation member is provided with a plurality of auxiliary isolation plates for enhancing the strength of the isolation member, and the auxiliary isolation plates are made of insulating material.

[0008] Preferably, the thickness of the partition body is 1.0mm to 3.5mm.

[0009] Preferably, the through hole is one or more of the following shapes: circular, elliptical, oblong, and polygonal.

[0010] Preferably, the separator is located at the edge of the partition body.

[0011] Preferably, the height of the isolation element is at least 4 mm higher than the height of any of the electrode points beyond the busbar.

[0012] Preferably, the width of the spacer is 1.0mm to 3.5mm.

[0013] Preferably, the isolation element is elongated with rounded corners at both ends, and the auxiliary isolation plate is connected to the isolation element by a transition arc.

[0014] Preferably, the auxiliary isolation plate is offset from the through hole to avoid electrode points protruding from the through hole.

[0015] Preferably, the isolation component, the auxiliary isolation plate, and the main body of the partition are integrally formed.

[0016] Beneficial effects:

[0017] The multifunctional insulating partition for busbars described in this utility model achieves electrical clearance isolation by setting insulating isolation components between electrode points at different potentials. This avoids component damage caused by the narrowing of electrical clearance between electrode points at different potentials after the installation of laminated busbars. It also eliminates the problems of high cost, complex process, and safety hazards associated with relying on redundant processing methods to ensure electrical clearance in existing technologies.

[0018] In the industrial high-voltage laminated busbar industry, it increases product reliability while reducing the labor and material costs of various industrial manufacturers, and has broad application prospects in terms of cost reduction and efficiency improvement. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the multifunctional insulating partition for busbars according to an embodiment of the present invention;

[0020] Figure 2 This is an exploded view of the structure of the multifunctional insulating partition for busbars according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram showing the assembly and usage state of the multifunctional insulating partition for busbars according to an embodiment of this utility model;

[0022] Figure 4 This is a schematic diagram of the stacked busbar structure before the use of the multifunctional insulating partition for the busbar in this embodiment of the utility model;

[0023] exist Figures 1 to 4 In the diagram, the correspondence between component names or lines and the drawing numbers is as follows:

[0024] 1. Partition body; 2. Through hole; 3. Isolation component; 4. First auxiliary isolation plate; 5. Second auxiliary isolation plate; 6. Third auxiliary isolation plate; 7. Multifunctional insulating partition for busbar; 8. Positive electrode of power module; 9. Output electrode of power module; 10. Laminated busbar. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] First see Figure 4 Before using the multifunctional insulating partition for busbars proposed in this application, the laminated busbar 10 provided in this embodiment is provided with adjacent and side-by-side power module positive electrodes 8 and power module output electrodes 9. The power module positive electrodes 8 and power module output electrodes 9 are divided into three groups, each group containing four power module positive electrodes 8 and four corresponding power module output electrodes 9. In this embodiment, the standard electrical clearance between the power module positive electrode 8 and the adjacent corresponding power module output electrode 9 is 16mm. Of course, in actual production, the type and number of electrode points on the busbar are different according to actual needs. This embodiment will not elaborate on other possible possibilities. However, the scope of protection of this application should not be simply understood to correspond only to this embodiment.

[0027] To ensure a safe electrical clearance between the positive electrode 8 and the output electrode 9 of the power module during the subsequent assembly of the stacked busbar 10, please refer to... Figures 1-3 As shown in the embodiment of this utility model, a multifunctional insulating partition for busbars is proposed, specifically including a partition body 1. The partition body is arranged in a rectangular plate shape, and through holes 2 are opened on the partition body 1 for the power module output electrodes 9 to pass through. The number of through holes 2 is four to match the number of power module output electrodes 9, and the position of the through holes 2 also matches the position of the power module output electrodes 9. The shape of the through holes 2 is one or more of the following: circular, elliptical, oblong, polygonal. Its purpose is to allow the electrode points to pass through. Therefore, the shape of the through holes should be different under different working conditions. In this embodiment, a circular through hole is selected.

[0028] The partition body 1 is provided with an isolation component 3 that provides electrical clearance isolation between the positive electrode 8 and the output electrode 9 of the power module at different potentials. Specifically, see [link to relevant documentation]. Figures 2-3 The isolation member 3 is elongated and has rounded corners at both ends. The isolation member 3 is provided with several auxiliary isolation plates to enhance its strength.

[0029] In this embodiment, the power module positive electrode 8 and the power module output electrode 9 need to be isolated, and there are four of each. Therefore, three auxiliary isolation plates are used: a first auxiliary isolation plate 4, a second auxiliary isolation plate 5, and a third auxiliary isolation plate 6. These three auxiliary isolation plates are offset from the through hole 2 to avoid the power module output electrode 9 protruding from the through hole 2. Similarly, in other assembly conditions, the number of auxiliary isolation plates can be reasonably designed according to the number of electrode points to be isolated, to avoid the through hole 2 and the electrode points. See the specific details in this embodiment. Figure 2 The first auxiliary isolation plate 4, the second auxiliary isolation plate 5, and the third auxiliary isolation plate 6 are all connected to the isolation member 3 by transition arcs. With this arrangement, the combination of several auxiliary isolation plates and the isolation member 3 strengthens the isolation member 3, preventing it from easily breaking or separating / peeling from the main body 1 due to external forces.

[0030] To prevent uncontrollable situations such as structural / strength instability caused by the splicing of various components, the isolation component 3, the first auxiliary isolation plate 4, the second auxiliary isolation plate 5, and the third auxiliary isolation plate 6 are integrally formed with the partition body 1. The isolation component 3, the first auxiliary isolation plate 4, the second auxiliary isolation plate 5, the third auxiliary isolation plate 6, and the partition body 1 are all made of insulating material to eliminate the need for adhesive sealing between components, thereby enhancing insulation performance. Specifically, the insulating material selected in this example is glass fiber composite material. Those skilled in the art can certainly choose the insulating material independently based on actual working conditions; therefore, this embodiment will not elaborate on the specific selection.

[0031] The partition body 1 is used to bond and fix the overlapping surfaces of the electrode points that need to be isolated from the stacked busbar 10. Its function is to increase the contact area with the stacked busbar 10 and prevent local detachment due to external forces or other factors. Specifically, in this embodiment, high-strength busbar adhesive is applied to the bottom of the isolation body 1 to prevent detachment. At the same time, in order to avoid interference with the electrode points (power module output electrode 9) that need to be isolated, the thickness of the partition body 1 is 1.0mm~3.5mm. In this embodiment, its thickness is selected as 2.5mm.

[0032] Furthermore, the purpose of the isolator 3 is to isolate adjacent electrode points with different potentials (power module positive electrode 8 and power module output electrode 9) by providing electrical clearance isolation. In this embodiment, in order to ensure that the electrical clearance between the two is not less than 16mm due to the inconsistent size of the crimp terminals or bolt washers during the assembly process, the isolator 3 is set at the edge of the partition body 1. With this setting, the isolator 3 is positioned between the power module positive electrode 8 and the power module output electrode 9 after assembly, which can effectively prevent the problem caused by insufficient electrical clearance between electrode points. In addition to ensuring that the electrical distance between adjacent electrode points with different potentials on the stacked busbar is increased, the isolator 3 also needs to be designed not to affect the creepage distance between electrodes. Therefore, the width of the isolator 3 is designed to be 1.0mm~3.5mm. In this embodiment, its width is selected as 2.5mm, which is the same as the thickness of the partition body 1, which facilitates integrated processing.

[0033] Meanwhile, to ensure a safe electrical clearance, the height of the isolator 3 is at least 4mm higher than the height of any of the electrode points beyond the busbar. That is, the height of the isolator 3 is H, and the height of any power module positive electrode 8 and power module output electrode 9 beyond the busbar is h, where h > 0 and Hh ≥ 4mm.

[0034] Therefore, the multifunctional insulating partition for busbars involved in this application uses an insulating partition body 1 as a fixed base plate, and sets insulating strip-shaped isolation members 3 on it to separate adjacent electrode points to ensure a safe electrical clearance. An insulating auxiliary isolation plate is used to enhance the overall strength of the isolation member 3. Through unique structural design and parameter selection, a safe guarantee of the electrical clearance of each electrode point in the industrial-grade high-voltage laminated busbar industry is formed, which increases the reliability of the product. At the same time, it also replaces the existing technology and solves the defects of the existing technology, such as increased manpower and material costs for secondary processing and the risk of missed operation during later product maintenance.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A multifunctional insulating partition (7) for busbars, characterized in that: The device includes a partition body (1), which has through holes (2) for electrode points to pass through, and an isolation element (3) for electrically isolating electrode points at different potentials. Both the partition body (1) and the isolation element (3) are made of insulating material.

2. The multifunctional insulating partition (7) for busbars according to claim 1, characterized in that: The isolation member (3) is provided with a plurality of auxiliary isolation plates for enhancing the strength of the isolation member (3), and the auxiliary isolation plates are made of insulating material.

3. The multifunctional insulating partition (7) for busbars according to claim 1, characterized in that: The thickness of the partition body (1) is 1.0mm~3.5mm.

4. The multifunctional insulating partition (7) for busbars according to claim 1, characterized in that: The through hole (2) is one or more of the following shapes: circular, elliptical, oblong, and polygonal.

5. The multifunctional insulating partition (7) for busbars according to claim 1, characterized in that: The isolation element (3) is located at the edge of the partition body (1).

6. The multifunctional insulating partition (7) for busbars according to claim 1, characterized in that: The height of the isolation element (3) is more than 4 mm higher than the height of any of the electrode points beyond the busbar.

7. A multifunctional insulating partition (7) for busbars according to claim 1, characterized in that: The width of the isolation element (3) is 1.0mm to 3.5mm.

8. A multifunctional insulating partition (7) for busbars according to claim 2, characterized in that: The isolation element (3) is long and narrow with rounded corners at both ends. The auxiliary isolation plate is connected to the isolation element (3) by a transition arc.

9. A multifunctional insulating partition (7) for busbars according to claim 2, characterized in that: The auxiliary isolation plate is offset from the through hole (2) to avoid the electrode point that passes through the through hole (2).

10. A multifunctional insulating partition (7) for busbars according to claim 2, characterized in that: The isolation component (3), the auxiliary isolation plate, and the partition body (1) are integrally formed.

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