Insulating cover for conducting bar joint and switch cabinet

Abstract

The utility model provides an insulating cover for a conducting bar joint and a switch cabinet, the insulating cover comprises two half shells, each of the two half shells is provided with a connecting part and a buckling part, the connecting parts of the two half shells are integrally formed, the buckling parts of the two half shells can be buckled along a first direction so as to enable the two half shells to enclose an accommodating cavity, and the accommodating cavity is provided with an opening; the accommodating cavity is used for accommodating a joint of the conducting bar; under the condition that the two half shells are buckled, the connecting part and the buckling part are oppositely arranged in the second direction, the insulating cover is provided with a first through hole and two second through holes oppositely arranged in the third direction, the first direction, the second direction and the third direction are perpendicular to each other, the first through hole and the buckling part are located on the same side, and the first through hole and the second through hole are used for avoiding a conducting bar. And a groove is formed around each second through hole and is used for fixing an insulating plug board.

Description

Technical Field

[0001] This utility model relates to the field of switch cabinets, and in particular to an insulating cover for a conductor busbar connector and a switch cabinet. Background Technology

[0002] Switchgear is an important electrical device in a power system. Switchgear typically contains multiple copper busbars used as the medium for power transmission. Insulating covers are usually installed at the joints of the copper busbars to improve the insulation performance of the switchgear.

[0003] However, the specifications of copper busbar connectors vary depending on the current rating or the location of the switchgear in a combined switchgear. Therefore, existing technologies design dedicated insulating covers for different specifications of copper busbar connectors, resulting in low versatility of these dedicated insulating covers. Utility Model Content

[0004] In view of this, the present invention proposes an insulating cover for a connector of a conductive busbar, comprising:

[0005] Two half-shells, each half-shell having a connecting part and a fastening part, the connecting part of the two half-shells being integrally formed, and the fastening part of the two half-shells being able to fasten together along a first direction so that the two half-shells form a receiving cavity, the receiving cavity being used to receive the connector of the conductive busbar.

[0006] When the two half-shells are fastened together, the connecting part and the fastening part are arranged opposite each other along the second direction. The insulating cover has a first through hole and two second through holes arranged opposite each other along the third direction. The first direction, the second direction and the third direction are perpendicular to each other. The first through hole is on the same side as the fastening part. The first through hole and the second through hole are used to avoid the conductive bar. A groove is provided around each of the second through holes. The groove is used to fix the insulating insert.

[0007] According to this utility model, the insulating cover 8, through the cooperation between the groove and different types of insulating plates, can be applied to conductive bars of different specifications, thus having high versatility.

[0008] Optionally, the insulating insert plate may also be included, according to the insulating cover described above.

[0009] Optionally, according to the insulating cover described above, the insulating insert can cover the corresponding second through hole; and / or

[0010] The insulating insert has a recess on one side, and the insulating insert can cover a portion of the corresponding second through hole.

[0011] Such insulating inserts have a simple structure, low cost, and are easy to install.

[0012] Optionally, the insulating cover described above may further include an arrow indicator located on the outer side of the half-shell and near the edge of the second through-hole, the arrow indicator indicating the insertion direction of the insulating insert. This arrow indicator facilitates the installation of the insulating insert with the recessed portion by the operator.

[0013] Optionally, according to the insulating cover described above, the groove is rectangular and surrounds the second through hole. This shape not only facilitates the insertion of the insulating insert but also allows the insulating insert to be well fixed within the groove.

[0014] Optionally, the insulating cover described above may also include an insulating mushroom-shaped fastener for passing through mounting holes in the two fastening portions to secure them together. Using insulating mushroom-shaped fasteners allows for easier and lower-cost securing of the fastening portions 12.

[0015] Optionally, each of the half-shells comprises, according to the insulating cover described above:

[0016] A rectangular cover, wherein the connecting part is one side of the rectangular cover;

[0017] A protrusion located in the middle of the rectangular cover, the protrusion protruding outwards from the rectangular cover;

[0018] The protruding edge is located on the side of the rectangular cover opposite to the connecting part. The part of the protruding edge that can fit with the other half shell is the fastening part, and the part of the protruding edge away from the other half shell is used to form the first through hole.

[0019] The rectangular cover, the protrusion, and the convex edge are all integrally formed.

[0020] Here, the rectangular cover structure facilitates manufacturing. The protrusion serves to avoid obstructing the fasteners at the joint.

[0021] Optionally, the two half-shells are arranged symmetrically according to the insulating cover described above; and / or

[0022] The material of the half-shell is silicone rubber.

[0023] Optionally, according to the insulating cover described above, the connector of the conductive busbar is the connector between the main busbar and the branch busbar in the busbar compartment of the switchgear.

[0024] This utility model also provides a switch cabinet, which includes an insulating cover for the connector of the conductive bus as described in any of the preceding claims. Attached Figure Description

[0025] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can more clearly understand the above and other features and advantages of the present invention, in which:

[0026] Figure 1 This is a schematic diagram of the structure of the insulating cover for the connector of the conductive bus according to the present invention.

[0027] Figure 2 This is a schematic diagram illustrating an application example of the insulating cover for a connector of a conductive bus according to the present invention.

[0028] Figure 3 This is a schematic diagram of another application example of the insulating cover for the connector of the conductive bus according to the present invention.

[0029] Figure 4 This is a schematic diagram illustrating another application example of the insulating cover for a connector of a conductive bus according to the present invention.

[0030] Figure 5 This is a schematic diagram of the structure of an insulating insert plate with a recessed portion for an insulating cover of a connector for a conductive bus according to an embodiment of the present invention.

[0031] The reference numerals in the attached figures are as follows:

[0032] 1-Half-shell

[0033] 11-Connecting part

[0034] 12-Hook-fitting part

[0035] 121-Mounting Hole

[0036] 13-Rectangular cover

[0037] 14-Protrusion

[0038] 15-convex edge

[0039] 2-First through hole

[0040] 3-Second through hole

[0041] 4-groove

[0042] 5-Insulating plug

[0043] 51-Depression

[0044] 6-Arrow indicator

[0045] 71-Main Busbar

[0046] 72-Branch Busbar

[0047] 73-Connector

[0048] 8-Insulating Cover

[0049] D1 - First Direction

[0050] D2 - Second Direction

[0051] D3-Third direction Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of this utility model clearer, the following embodiments are provided to further illustrate this utility model in detail. The nouns and pronouns referring to "person" in this patent application are not limited to specific genders.

[0053] Busbars are used to connect two or more components to make them conductive. In switch cabinets, copper or aluminum busbars are generally used, with copper busbars being more widely adopted. When a busbar is connected to other components or when two busbars are connected, the overlapping part is called the busbar joint.

[0054] like Figure 1 The diagram shown is a structural schematic of an insulating cover for a connector of a conductive bus according to the present invention.

[0055] The insulating cover includes two half-shells 1, each half-shell 1 having a connecting part 11 and a fastening part 12. The connecting part 11 of the two half-shells 1 is integrally formed, and the fastening part 12 of the two half-shells 1 can be fastened along the first direction D1 so that the two half-shells 1 form a receiving cavity, which is used to receive the connector 73 of the conductive busbar.

[0056] When the two half-shells 1 are fastened together, the connecting part 11 and the fastening part 12 are arranged opposite each other along the second direction D2. The insulating cover 8 has a first through hole 2 and two second through holes 3 arranged opposite each other along the third direction D3. The first direction D1, the second direction D2 and the third direction D3 are perpendicular to each other. The first through hole 2 is on the same side as the fastening part 12. The first through hole 2 and the second through hole 3 are used to avoid the conductive bar. A groove 4 is arranged around each second through hole 3. The groove 4 is used to fix the insulating insert 5.

[0057] The connecting portion 11 of each of the two half-shells 1 is integrally formed, indicating that the two half-shells 1 themselves are also integrally formed. For ease of structural description in this example, the two integrally formed parts are referred to as the two half-shells 1. These two half-shells 1 can be symmetrically arranged; of course, the structure of each half-shell 1 can also be designed according to the situation of the connector 73, such as... Figure 3As shown, the left half-shell 1 and the right half-shell 1 do not equally bisect the first through hole 2; the right half-shell 1 occupies most of the first through hole 2. As an example, each half-shell 1 includes a rectangular cover 13, a protrusion 14, and a raised edge 15, all three integrally formed. The connecting portion 11 is one side of the rectangular cover 13, and the protrusion 14 is located in the middle of the rectangular cover 13, protruding outwards towards the rectangular cover 13. The raised edge 15 is located on the side of the rectangular cover 13 opposite to the connecting portion 11. The portion of the raised edge 15 that can fit against the other half-shell is the fastening portion 12, and the portion of the raised edge 15 away from the other half-shell 1 forms the first through hole 2. The protrusion 14 serves to avoid the fastener at the connector 73. The protrusion 14 can be rectangular, trapezoidal, or semi-circular, etc., and is not limited here. The structure of the rectangular cover 13 is easy to manufacture. Figures 1 to 4 As shown, the rectangular cover 13 has a protruding edge 15 on one side opposite to the second direction D2. The portion where the protruding edges 15 of the two half-shells 1 meet forms a fastening part 12. The portion of the two protruding edges 15 protruding towards the first direction D1 or the opposite direction D1 forms a first through hole 2 when the two half-shells 1 are fastened. Figures 1 to 4 As can be seen, the first through hole 2 is located in the middle of the fastening part 12.

[0058] The two fastening portions 12 can be fastened together along the first direction D1, so that the two half-shells 1 are fastened together to form a receiving cavity. As an example, the two fastening portions 12 can be fixed by insulating mushroom-shaped fasteners (not shown in the figure). The insulating mushroom-shaped fasteners can pass through the mounting holes 121 on the two fastening portions 12 to fix the two fastening portions 12 together, thereby keeping the insulating cover 8 as... Figure 1 The shape prevents it from opening. Insulated mushroom-shaped fasteners make it easier to secure the fastener 12, and are also less expensive.

[0059] Optionally, each half-shell 1 can be made of silicone rubber, which not only has good insulation properties but is also inexpensive, low-cost, and easy to process. Of course, other materials can also be used for the half-shell 1, such as other soft and deformable insulating materials; no specific limitation is made.

[0060] Figure 1 The diagram shows the two half-shells 1 fastened together. Figure 1 As can be seen, the connecting part 11 and the fastening part 12 are arranged opposite to each other along the second direction D2, and the fastening part 12 has a first through hole 2 on the same side. The first through hole 2 is used to avoid the copper busbar on this side. The size of the first through hole 2 can be set according to the thickness of the copper busbar, so that the sidewall of the first through hole 2 is as close as possible to the copper busbar.

[0061] Furthermore, a groove 4 is arranged around the second through hole 3, and an insulating insert 5 can be inserted into the groove 4 to adjust the size of the second through hole 3. Multiple sizes of the insulating insert 5 can be available, allowing operators to select the appropriate insulating insert 5 according to actual needs.

[0062] Assuming two copper busbars are already connected, for example, main busbar 71 and branch busbar 72 are already connected, such as... Figures 2 to 4 As shown, the horizontal axis represents the main busbar 71, and the vertical axis represents the branch busbar 72. An insulating cover 8 needs to be installed on the joint 73 at this point. The worker can hold the insulating cover 8 and remove the insulating mushroom-shaped fasteners 12 on both sides of the first through hole 2. The two half-shells 1 can be opened and fastened along the direction from the main busbar 71 to the branch busbar 72, so that the receiving cavity formed by the two half-shells 1 encloses the joint 73, and the branch busbar 72 passes through the first through hole 2. If the first through hole 2 needs to face downwards, the two integrally formed connecting parts 11 can be hung on the horizontally arranged main busbar 71, but not in contact with the main busbar 71. The main busbar 71 passes through the two oppositely arranged second through holes 3. Furthermore, as... Figure 3 and Figure 4 As shown, when it is necessary to insert the insulating insert 5, the operator selects the required insulating insert 5 according to the actual needs. For example... Figure 3 As shown, both second through holes 3 require the insertion of insulating inserts 5 with recessed portions 51. Thus, the two insulating inserts 5 can be inserted into the grooves 4 on the half-shell 1 with arrow indicators 6 in the direction indicated by the arrow. After placing the insulating cover at position 73 as previously described, the grooves 4 are pinched tight, ensuring that both insulating inserts 5 are tightly fitted with the corresponding grooves 4. Insulating mushroom-shaped fasteners are then used to secure the two fastening portions 12. This allows the insulating cover 8 to be used to cover the connector 73. Figure 4 As shown, one of the second through holes 3 needs to be inserted into a rectangular insulating plate 5. This allows the insulating plate 5 to be inserted into the groove 4 of the half-shell 1 with the arrow. After the insulating cover is placed at position 73, the two half-shells 1 are pinched together so that the groove 4 on the other half-shell 1 fits tightly with the insulating plate 5.

[0063] According to the present invention, the insulating cover 8, through the cooperation between the groove 4 and different types of insulating inserts 5, enables the insulating cover 8 to be applicable to conductive bars of different specifications, and has high versatility.

[0064] Optionally, the insulating cover 8 also includes an insulating insert 5. The material of the insulating insert 5 may be silicone rubber or other rigid insulation, which is not limited here.

[0065] The insulating insert 5 can cover the corresponding second through hole 3, or it can be as follows: Figure 5The diagram shows a recess 51, allowing the insulating insert 5 to cover a portion of the corresponding second through-hole 3. As an example, copper busbars are sometimes used in stacks of three, such as... Figure 2 As shown; sometimes two are used together, such as Figure 3 As shown; sometimes only one copper busbar can be used. In this case, the thickness of the copper busbar will vary. To ensure the insulation of the insulating cover 8 and to improve its versatility, insulating inserts 5 of different specifications can be used. These insulating inserts 5 can be inserted into the groove 4 to adjust the size of the second through hole 3. As an example, if the insulating insert 5 is not inserted, as... Figure 2 As shown, the second through hole 3 can accommodate three copper busbars, and the sidewall of the second through hole 3 abuts against the outer side of the three copper busbars used in stacking, ensuring their insulation. If two copper busbars or one copper busbar need to be stacked, an insulating insert 5 with a recess 51 can be used. After the insulating insert 5 is inserted into the groove 4, two copper busbars or one copper busbar can pass through the recess 51, and the sidewall of the insulating insert 5 and the second through hole 3 can abut against the outer side of the copper busbar, ensuring their insulation. Figure 3 The diagram shows two copper busbars passing through the recess 51. This type of insulating insert 5 has a simple structure, low cost, and is easy to install.

[0066] As another example, sometimes the switch cabinet is a side cabinet, meaning one side of the switch cabinet does not need to be connected to another switch cabinet. In this case, the copper busbar does not need to extend from another second through hole 3, such as... Figure 4 As shown. Therefore, the insulating insert 5 can completely cover the corresponding second through hole 3 to ensure its insulation. This further improves the versatility of the insulating cover 8. As an example, the insulating insert 5 is rectangular.

[0067] Optionally, the insulating cover 8 also includes an arrow indicator 6. The arrow indicator 6 is located on the outer side of the half-shell 1 and near the edge of the second through hole 3. The arrow indicator 6 indicates the direction of insertion of the insulating insert 5, particularly the insertion direction of the insulating insert 5 with the recess 51. For the insulating insert 5 with the recess 51, the recess 51 needs to be positioned appropriately to allow the conductive bar to pass through. The arrow indicator 6 facilitates the installation of the insulating insert 5 with the recess 51 by the operator.

[0068] Optionally, the groove 4 is rectangular, and correspondingly, the insulating insert 5 can be rectangular or a portion thereof. This shape not only facilitates the insertion of the insulating insert 5, but also allows the insulating insert 5 to be better fixed within the groove 4.

[0069] Optionally, the aforementioned conductor bus joint 73 is the joint 73 between the main busbar 71 and the branch busbar 72 in the busbar compartment of the switchgear. According to conventional switchgear, especially air-insulated switchgear, it generally has a main busbar 71 and a branch busbar 72. The branch busbar 72 is used to connect the stationary contacts in the contact box. The branch busbar 72 is fixedly connected to the main busbar 71. Through the cooperation of the main busbar 71 and the branch busbar 72, the direction of current flow can be adjusted. The structure of the main busbar 71 and the branch busbar 72 in this busbar compartment is prior art and will not be described in detail here.

[0070] This invention also includes a switch cabinet comprising an insulating cover for the connectors of the conductive busbars as described in any of the foregoing examples. Specifically, the switch cabinet may be an air-insulated switch cabinet.

[0071] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An insulating cover (8) for a joint (73) of an electrically conductive bus, characterized in that, The utility model relates to a kind of insulating cover (8) for the joint (73) of electrically conductive row, including: Two half shells (1), two half shells (1) each have connecting part (11) and buckle part (12), the connecting part (11) of two half shells (1) is integrally formed, the buckle part (12) of two half shells (1) can be buckled along the first direction (D1) to make two the half shell (1) enclose a containing cavity, the containing cavity is used to accommodate the joint (73) of electrically conductive row; When two half shells (1) are buckled, the connecting part (11) and the buckle part (12) are oppositely arranged along the second direction (D2), the insulating cover (8) has first through hole (2) and two second through holes (3) oppositely arranged along the third direction (D3), the first direction (D1), the second direction (D2) and the third direction (D3) are perpendicular to each other, the first through hole (2) is on the same side with the buckle part (12), the first through hole (2) and the second through hole (3) are used to avoid the electrically conductive row, recess (4) is arranged around each second through hole (3), and the recess (4) is used to fix insulating plugboard (5).

2. An insulating cover (8) according to claim 1, characterized in that Also including the insulating plugboard (5).

3. An insulating cover (8) according to claim 1, characterized in that The insulating plugboard (5) can cover the corresponding second through hole (3);And / or One side of the insulating plugboard (5) has a recess (51), and the insulating plugboard (5) can cover part of the corresponding second through hole (3).

4. An insulating cover (8) according to claim 2, characterized in that Also including: Arrow indicating part (6) is arranged on the outside of the half shell (1) and is close to the edge of the second through hole (3), and the arrow indicating part (6) is used to indicate the insertion direction of the insulating plugboard (5).

5. The insulating cover (8) according to claim 1, characterized in that The recess (4) is rectangularly surrounded around the second through hole (3).

6. The insulating cover (8) according to claim 1, characterized in that Also including: Insulating mushroom nail is used to be arranged in the mounting hole (121) of two buckle parts (12) to fix two buckle parts (12) together.

7. An insulating cover (8) according to claim 1, characterized in that Each half shell (1) includes: Rectangular cover body (13), the connecting part (11) is one side of rectangular cover body (13); Protruding part (14) is located in the middle of the rectangular cover body (13), and the protruding part (14) protrudes towards the outside of the rectangular cover body (13); Convex edge (15) is located on the side of the rectangular cover body (13) opposite to the connecting part (11), and the part of the convex edge (15) that can be attached to another half shell (1) is the buckle part (12), and the part of the convex edge (15) away from another half shell (1) is used to constitute the first through hole (2); The rectangular cover body (13), the protruding part (14) and the convex edge (15) are integrally formed.

8. An insulating cover (8) according to claim 1, characterized in that Two half shells (1) are symmetrically arranged;And / or The material of the half shell (1) is silicone rubber.

9. An insulating cover (8) according to claim 1, characterized in that The joint (73) of the electrically conductive row is the joint (73) of main busbar row (71) and branch busbar (72) in busbar room of switch cabinet.

10. Switchgear cabinet, characterized in that The switch cabinet includes the insulating cover (8) for the joint (73) of electrically conductive row in any one of claims 1-9.

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