Busbar arrangement

Abstract

The busbar row separation structure comprises a main busbar row assembly and at least one group of branch row assemblies, an insulating seat, the insulating seat comprises an insulating seat body, the main busbar row assembly is arranged on the lower side of the insulating seat body in the third direction, the branch row assembly is arranged on the upper side of the insulating seat body in the third direction, the insulating seat body is provided with connecting holes corresponding to each branch row, and a conductive block is arranged in each connecting hole respectively, and the corresponding main busbar row, conductive block and branch row are sequentially stacked in the third direction and are fixedly connected through a connecting piece. The busbar row separation structure is characterized in that the branch row and the main busbar row are arranged on the upper and lower sides of the insulating seat body, the conductive block is arranged in the connecting hole on the insulating seat body, and the main busbar row, the conductive block and the branch row are fixedly connected through the connecting piece, so that the conductive block is reliably electrically connected between the branch row and the main busbar row, the branch row can be directly laid flat, and the electrical gap between the branch row and the main busbar row of different phases does not need to be ensured.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage electrical appliances, specifically to a busbar partition structure. Background Technology

[0002] Low-voltage distribution boxes are common electrical control devices with wide applications, handling currents from 250A to 1250A. In practical applications, for open busbar systems, when the number of outgoing circuits increases from 2 to 18, and the current increases from 125A to 400A, the copper busbars connecting the outgoing circuits to the main busbar need to be bent with sufficient electrical clearance, and the main busbar needs to be fixed with insulators. Therefore, reducing the length of the outgoing branch lines, improving bending difficulty, and minimizing electrical clearance can significantly reduce costs.

[0003] In addition, due to the phase spacing of the outgoing circuit breaker, arcing may occur without a separator plate, which can easily lead to short circuits and affect performance and use. Utility Model Content

[0004] The purpose of this utility model is to overcome at least one defect of the prior art and provide a busbar partition structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A busbar partition structure includes a main busbar assembly and at least one set of branch busbar assemblies. The main busbar assembly includes at least one phase main busbar, and each branch busbar assembly includes at least one phase branch busbar electrically connected to its corresponding phase main busbar. The busbar partition structure also includes an insulating base. The length, width, and thickness directions of the insulating base are respectively a first direction, a second direction, and a third direction. The insulating base includes an insulating base body. The main busbar assembly is disposed on the underside of the insulating base body in the third direction, and the branch busbar assemblies are disposed on the insulating base in the third direction. On the upper side of the main body, the insulating base body is provided with connection holes corresponding to each branch row. The connection holes are arranged through the insulating base body in the third direction. Each connection hole is provided with a conductive block. Each phase branch row is electrically connected to the main busbar of the corresponding phase through the conductive block. The corresponding main busbar, conductive block and branch row are arranged in a stacked manner in the third direction. The corresponding main busbar, conductive block and branch row are fixedly connected by connectors. The main busbar, conductive block and branch row are respectively provided with main busbar mounting holes, conductive block mounting holes and branch row mounting holes that cooperate with the connectors.

[0007] Optionally, the connection holes corresponding to branch rows of different phases can be misaligned.

[0008] Optionally, the connector is a conductive or insulating screw; and / or, the conductive block is rectangular; and / or, the width of the conductive block in the second direction is greater than or equal to the width of the branch row.

[0009] Optionally, the thickness of the conductive block in the third direction is equal to the thickness of the insulating base body.

[0010] Optionally, the main busbars of the main busbar assembly are arranged at intervals along a first direction; the branch busbar assemblies are arranged at intervals along a second direction, and the branch busbars of the branch busbar assembly are arranged at intervals along the second direction.

[0011] Optionally, the insulating base body has first partition side plates protruding downwards on both sides in the first direction, and the main busbar assembly is located between the first partition side plates on both sides of the insulating base body in the first direction.

[0012] And / or, for the gap between each pair of adjacent phases of the corresponding branch row assembly, the insulating seat has first dividing ribs protruding on both sides in the first direction.

[0013] Optionally, corresponding to the gap between each pair of adjacent branch row assemblies, the insulating seat has second dividing ribs protruding on both sides in the first direction.

[0014] Optionally, corresponding to the gap between each pair of adjacent branch row assemblies, the upper side of the insulating base body is provided with a second partition side plate that protrudes upwards.

[0015] And / or, for the gap between each pair of adjacent phases of the corresponding branch row assembly, the upper side of the insulating base body is provided with a second arc-blocking plate that protrudes upwards;

[0016] And / or, corresponding to the gap between the main busbars of each two adjacent phases, the lower side of the insulating base body is provided with a first arc-blocking plate that protrudes downwards.

[0017] Optionally, the length direction, width direction, and thickness direction of the main busbar are respectively the second direction, the first direction, and the third direction; the length direction, width direction, and thickness direction of the branch busbar are respectively the first direction, the second direction, and the third direction.

[0018] Optionally, the insulating base is provided with at least one fixing hole that cooperates with a fixing screw and is used to fix the insulating base in the mounting position, the fixing hole being disposed through the insulating base in a third direction.

[0019] This utility model discloses a busbar partition structure in which branch busbars and main busbars are arranged on the upper and lower sides of the insulating base body. Conductive blocks are installed in the connection holes on the insulating base body, and the main busbars, conductive blocks, and branch busbars are fixedly connected by connectors. Thus, the conductive blocks are reliably electrically connected between the branch busbars and the main busbars. The insulating base body is used to separate the branch busbars from the main busbars of different phases. The branch busbars can be laid flat directly without ensuring the electrical clearance between the branch busbars and the main busbars of different phases, thereby saving the length of the branch busbars and eliminating the bending process. At the same time, the insulating base can also be used to support the main busbars and branch busbars, enabling rapid placement and installation without the need for additional insulators for installing and supporting the main busbars. Moreover, since the branch busbars and main busbars are not directly limited by the insulating base, but are limited and positioned on the insulating base by conductive blocks and connectors, the insulating base has strong versatility and is suitable for multiple specifications of main busbars and multiple specifications of branch busbars.

[0020] Furthermore, the branch busbar and the main busbar are electrically connected by conductive blocks, which have a large contact area, reduce contact resistance, and make the electrical connection more reliable. This improves current carrying capacity and heat dissipation performance, and has a wide range of applications. The conductive blocks are rectangular; and / or, the width of the conductive blocks in the second direction is greater than or equal to the width of the branch busbar.

[0021] In addition, the first dividing rib is used to replace the phase spacer of the circuit breaker and is inserted into the gap between two adjacent phases of the circuit breaker, omitting the phase spacer to prevent arcing. It can also be used for positioning between the insulating base and the circuit breaker.

[0022] In addition, the second separating rib is used for insulation separation between two adjacent circuit breakers to prevent arcing, and also for positioning between two adjacent circuit breakers. Attached Figure Description

[0023] Figure 1 This is an exploded view of the busbar partition structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the insulating base of this utility model;

[0025] Figure 3 This is an assembly drawing of the busbar partition structure and circuit breaker of this utility model.

[0026] First direction D1; Second direction D2; Third direction D3;

[0027] Main busbar assembly 100; Main busbar 110;

[0028] Branch row assembly 200; branch row 210; branch row mounting hole 211;

[0029] Insulating base 300; Insulating base body 310; Connecting hole 311; First partition side plate 320; First partition rib 321; Second partition rib 322; First arc diaphragm plate 330; Second partition side plate 340; Second arc diaphragm plate 350; Fixing hole 360;

[0030] Conductive block 400; Conductive block mounting hole 401;

[0031] 500 fixing screws;

[0032] Circuit breaker 600. Detailed Implementation

[0033] The specific embodiments of the busbar partition structure of this utility model are further described below with reference to the accompanying drawings. The busbar partition structure of this utility model is not limited to the descriptions in the following embodiments.

[0034] like Figure 3 As shown, the busbar partition structure of this embodiment includes a main busbar assembly 100 and at least one set of branch busbar assemblies 200. The main busbar assembly 100 includes at least one phase main busbar 110, and each branch busbar assembly 200 includes at least one phase branch busbar 210 electrically connected to the corresponding phase main busbar 110. The main busbar 110 of the main busbar assembly 100 serves as the incoming line terminal, and the branch busbar 210 of the branch busbar assembly 200 serves as the outgoing line terminal. One set of branch busbar assemblies 200 can be electrically connected to two circuit breakers 600. One end of each phase branch busbar 210 of the branch busbar assembly 200 is electrically connected to a corresponding phase of one circuit breaker 600, and the other end of each phase branch busbar 210 of the branch busbar assembly 200 is electrically connected to a corresponding phase of another circuit breaker 600. In this embodiment, the main busbar assembly 100, branch busbar assembly 200, and circuit breaker 600 are all three-phase. That is, a single main busbar assembly 100 includes a three-phase main busbar 110, and a single branch busbar assembly 200 includes a three-phase branch busbar 210. Two branch busbar assemblies 200 are shown in the figure. Of course, the main busbar assembly 100, branch busbar assembly 200, and circuit breaker 600 can also be single-phase, two-phase, four-phase, or more phases.

[0035] In particular, such as Figure 1-2As shown, the busbar partition structure in this embodiment also includes an insulating base 300. The length, width, and thickness directions of the insulating base 300 are respectively a first direction D1, a second direction D2, and a third direction D3, i.e., the first direction D1, the second direction D2, and the third direction D3 are perpendicular to each other. The insulating base 300 includes an insulating base body 310. The main busbar assembly 100 is disposed on the lower side of the insulating base body 310 on the third direction D3, and the branch busbar assembly 200 is disposed on the upper side of the insulating base body 310 on the third direction D3. The insulating base body 310 is provided with connection holes 311 corresponding to each branch busbar 210. The connection holes 311 are disposed through the insulating base body 310 along the third direction D3, i.e., the connection holes 311 connect the upper and lower spaces of the insulating base body 310. Each connection hole 311 is respectively provided with A conductive block 400 is provided. Each phase branch busbar 210 is electrically connected to the corresponding phase main busbar 110 through the conductive block 400. The corresponding main busbar 110, conductive block 400, and branch busbar 210 are stacked sequentially on the third direction D3, and the corresponding main busbar 110, conductive block 400, and branch busbar 210 are fixedly connected by connectors. The main busbar 110, conductive block 400, and branch busbar 210 are respectively provided with main busbar mounting holes (not shown in the figure), conductive block mounting holes 401, and branch busbar mounting holes 211 that mate with the connectors. The connectors can be fasteners such as screws and rivets, and they can be conductive or insulated.

[0036] In this embodiment, the busbar partition structure has branch busbars 210 and main busbars 110 located on the upper and lower sides of the insulating base body 310. A conductive block 400 is installed in the connection hole 311 on the insulating base body 310. The main busbars 110, conductive blocks 400, and branch busbars 210 are fixedly connected by connectors, so that conductive blocks 400 are reliably electrically connected between branch busbars 210 and main busbars 110. The insulating base body 310 is used to separate branch busbars 210 from main busbars 110 of different phases. Branch busbars 210 can be laid flat directly without ensuring the electrical clearance between branch busbars 210 and main busbars 110 of different phases, thus saving the length of branch busbars 210 and omitting the bending process of branch busbars 210. At the same time, the insulating base 300 can also be used to support main busbars 110 and branch busbars 210, which plays a role in quick placement and installation, without the need for additional insulators for installing and supporting main busbars 110. Furthermore, since the branch busbar 210 and the main busbar 110 are not directly limited by the insulating base 300, but are limited and positioned on the insulating base 300 through the conductive block 400 and the connector, the insulating base 300 has strong versatility and is suitable for main busbars 110 of various specifications (widths of 20mm, 30mm, 40mm, etc.) and branch busbars 210 of various specifications (widths of 10mm, 15mm, etc.). In addition, the branch busbar 210 and the main busbar 110 are electrically connected through the conductive block 400, which has a large contact area, reduces contact resistance, makes the electrical connection more reliable, and is conducive to improving current carrying capacity and heat dissipation performance, thus having a wide range of applications.

[0037] Since the insulating base 300 of this embodiment is applicable to main busbars 110 of various specifications (widths of 20mm, 30mm, 40mm, etc.), the main busbars 110 of different specifications have different widths. Therefore, the main busbars 110 have different specifications and their phase spacing is also different (the wider the main busbar 110, the smaller the phase spacing). Thus, the insulating base 300 can also adjust the phase spacing of the main busbars 110.

[0038] The insulating base 300 in this embodiment is made of insulating material, and the thickness of its insulating base body 310 (the dimension on the third direction D3) is preferably 5mm, which ensures strength and can withstand the huge electrodynamic force when the current is turned on. At the same time, it has good heat resistance and good insulation performance, ensuring stability within the temperature rise range while avoiding phase-to-phase short circuits.

[0039] In this embodiment, the thickness of the conductive block 400 (its dimension in the third direction D3) is equal to the thickness of the insulating base body 310. That is, the conductive block 400 is installed in the connection hole 311 on the insulating base body 310, with its upper and lower sides flush with the upper and lower sides of the insulating base body 310, respectively. This ensures stable and reliable contact between the conductive block 400 and the main busbar 110 and the branch busbar 210, respectively. The thickness of the conductive block 400 is preferably 5 mm. Alternatively, the thickness of the conductive block 400 (its dimension in the third direction D3) can be slightly greater than the thickness of the insulating base body 310.

[0040] In this embodiment, when the insulating base 300 is used for multiple specifications of main busbars 110 and / or multiple specifications of branch busbars 210, the conductive block 400 with the same structure can be used. The conductive block 400 can be mass-produced, reducing the types of parts.

[0041] Preferably, the connecting holes 311 corresponding to the branch rows 210 of different phases are staggered; correspondingly, the conductive blocks 400 of different phases are staggered. For example... Figure 2 As shown, the three connecting holes 311 of the three-phase conductive block 400 used to connect the branch row assembly 200 are arranged sequentially at intervals along the first direction D1. The projections of the three connecting holes 311 on the second direction D2 are staggered and do not overlap. The conductive block 400 is rectangular, preferably square. The width of the conductive block 400 on the second direction D2 is greater than or equal to the width of the branch row 210, increasing the contact area and reducing the temperature rise at contact. The structure of each connecting hole 311 is the same, all being square holes of the same size; correspondingly, the structure of each conductive block 400 is the same, all being square blocks of the same size.

[0042] like Figure 1-2 As shown, the main busbars 110 of the main busbar assembly 100 are arranged at intervals along the first direction D1; the branch busbar assemblies 200 are arranged at intervals along the second direction D2, and the branch busbars 210 of the branch busbar assembly 200 are arranged at intervals along the second direction D2.

[0043] In this embodiment, the main busbar 110 and the branch busbar 210 are straight flat plate structures, and their length directions are arranged vertically. Specifically, the length direction, width direction and thickness direction of the main busbar 110 are the second direction D2, the first direction D1 and the third direction D3, respectively; the length direction, width direction and thickness direction of the branch busbar 210 are the first direction D1, the second direction D2 and the third direction D3, respectively.

[0044] Preferably, the insulating base body 310 has first partition side plates 320 protruding downwards on both sides in the first direction D1, and the main busbar assembly 100 is located between the first partition side plates 320 on both sides of the insulating base body 310 in the first direction D1. The first partition side plates 320 are used to separate the main busbar assembly 100 from other mechanisms such as the branch busbar assembly 200 and the circuit breaker 600, which can reduce electrical clearance and facilitate the direct installation of the circuit breaker 600 against the insulating base 300.

[0045] Preferably, corresponding to the gap between each pair of adjacent main busbars 110, the lower side of the insulating base body 310 is provided with a first arc-isolating plate 330 protruding downwards. That is, the first arc-isolating plate 330 is located between two adjacent main busbars 110 in the first direction D1, or a single-phase main busbar 110 is located between two adjacent first arc-isolating plates 330 in the first direction D1. The first arc-isolating plate 330 is used to separate the main busbars 110 of each phase and reduce the electrical clearance. Furthermore, the lower sides of the first arc-isolating plate 330 and the first separating side plate 320 are flush and serve a supporting function. It should be noted that, according to application requirements, the spacing between two adjacent first arc-isolating plates 330 is set large enough to accommodate multiple specifications (widths of 20mm, 30mm, 40mm, etc.) of main busbars 110.

[0046] Preferably, corresponding to the gap between each pair of adjacent branch busbar assemblies 200, the upper side of the insulating base body 310 is provided with a second separating side plate 340 protruding upwards. That is, the second separating side plate 340 is located between two adjacent pairs of branch busbar assemblies 200 in the second direction D2, or a single pair of branch busbar assemblies 200 is located between two adjacent second separating side plates 340 in the second direction D2. The second separating side plate 340 is used to separate the branch busbar assembly 200 from the main busbar assembly 100, which can reduce the electrical clearance.

[0047] Preferably, corresponding to the gap between each pair of adjacent phase branch rows 210 of the branch row assembly 200, the upper side of the insulating base body 310 is provided with a second arc-isolating plate 350 protruding upwards. That is, the second arc-isolating plate 350 is located between the branch rows 210 of adjacent phases of the branch row assembly 200 in the second direction D2, that is, a single-phase branch row 210 is located between two adjacent second arc-isolating plates 350 in the second direction D2. The second arc-isolating plate 350 is used to separate the branch rows 210 of adjacent phases to prevent arcing caused by the electrical clearance between phases of the circuit breaker 600 being too small (e.g., 10mm), resulting in a phase-to-phase short circuit. It should be noted that, according to application requirements, the spacing between two adjacent second arc-isolating plates 350 is set large enough to accommodate multiple specifications (widths of 10mm, 15mm, etc.) of branch rows 210.

[0048] Preferably, corresponding to the gap between each pair of adjacent branch rows 210 of the branch row assembly 200, the insulating base 300 is provided with first separating ribs 321 protruding on both sides in the first direction D1, that is, the first separating ribs 321 are located between the branch rows 210 of adjacent phases of the branch row assembly 200 in the second direction D2. The first separating ribs 321 are used to replace the phase spacers of the circuit breaker 600, inserted into the gap between adjacent phases of the circuit breaker 600, omitting the phase spacers, preventing arcing, and can also be used for positioning between the insulating base 300 and the circuit breaker 600. Further, the second arc-blocking plate 350 is flush with the two first separating side plates 320 on both sides in the first direction D1, a part of the first separating rib 321 protrudes on the side of the second arc-blocking plate 350 of the insulating base 300 in the first direction D1, and the other part of the first separating rib 321 protrudes on the first separating side plate 320 of the insulating base 300.

[0049] Preferably, corresponding to the gap between each pair of adjacent branch row assemblies 200, the insulating base 300 is provided with second separating ribs 322 protruding on both sides in the first direction D1, that is, the second separating ribs 322 are located between the adjacent pairs of branch row assemblies 200 in the second direction D2. The second separating ribs 322 are used for insulation separation between two adjacent circuit breakers 600 to prevent arcing, and are also used for positioning between two adjacent circuit breakers 600. Further, the first separating side plate 320 protrudes from two second separating side plates 340 on both sides in the second direction D2, and the upper side of the portion of the first separating side plate 320 protruding from the second separating side plate 340 extends upward to be flush with the second separating side plate 340. The second separating ribs 322 are protruding from the portion of the first separating side plate 320 protruding from the second separating side plate 340 of the insulating base 300.

[0050] Specifically, the insulating base 300 is provided with at least one fixing hole 360 ​​that cooperates with the fixing screw 500 and is used to fix the insulating base 300 in the mounting position. The fixing hole 360 ​​is provided through the insulating base 300 along a third direction D3. The fixing hole 360 ​​cooperates with the fixing screw 500 to fix the insulating base 300 to the mounting position, such as the base plate of the distribution box. Thus, the main busbar 110 is fixed in the distribution box through the insulating base 300. While ensuring the electrodynamic force, the insulator of the main busbar 110 is omitted.

[0051] In this embodiment, the fixing hole 360 ​​is located at the intersection of the projected gaps between adjacent two-phase branch lines 210 and adjacent two-phase main busbar lines 110 on the insulating base 300. Specifically, the fixing hole 360 ​​sequentially penetrates the first arc-blocking plate 330, the insulating base body 310, and the second arc-blocking plate 350 of the insulating base 300. Of course, the fixing hole 360 ​​can also be located at other positions on the insulating base 300 that avoid the branch lines 210 and the main busbar lines 110.

[0052] It should be noted that in the description of this utility model, the terms "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 during use. They are only for ease of description and do not indicate that the device or component referred to must have a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating relative importance.

[0053] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A busbar partition structure, comprising a main busbar assembly (100) and at least one set of branch busbar assemblies (200), wherein the main busbar assembly (100) comprises at least one phase main busbar (110), and each branch busbar assembly (200) comprises at least one phase branch busbar (210) electrically connected to the corresponding phase main busbar (110), characterized in that: The busbar partition structure further includes an insulating base (300). The length, width, and thickness directions of the insulating base (300) are respectively a first direction (D1), a second direction (D2), and a third direction (D3). The insulating base (300) includes an insulating base body (310). The main busbar assembly (100) is disposed on the lower side of the insulating base body (310) in the third direction (D3), and the branch busbar assembly (200) is disposed on the upper side of the insulating base body (310) in the third direction (D3). The insulating base body (310) is provided with connection holes (311) corresponding to each branch busbar (210). The connection holes (311) penetrate the insulating base along the third direction (D3). The main body (310) is provided, and each connection hole (311) is provided with a conductive block (400). Each phase branch (210) is electrically connected to the corresponding phase main busbar (110) through the conductive block (400). The corresponding main busbar (110), conductive block (400) and branch (210) are stacked in sequence on the third direction (D3), and the corresponding main busbar (110), conductive block (400) and branch (210) are fixedly connected by connectors. The main busbar (110), conductive block (400) and branch (210) are respectively provided with main busbar mounting holes, conductive block mounting holes (401) and branch mounting holes (211) that cooperate with the connectors.

2. The busbar partition structure according to claim 1, characterized in that: The connecting holes (311) corresponding to the branch rows (210) of different phases are misaligned.

3. The busbar partition structure according to claim 1, characterized in that: The connector is a conductive or insulating screw; and / or, the conductive block (400) is rectangular; and / or, the width of the conductive block (400) in the second direction (D2) is greater than or equal to the width of the branch row (210).

4. The busbar partition structure according to claim 1, characterized in that: The thickness of the conductive block (400) in the third direction (D3) is equal to the thickness of the insulating base body (310).

5. The busbar partition structure according to claim 1, characterized in that: The main busbars (110) of the main busbar assembly (100) are arranged at intervals along the first direction (D1); the branch busbar assemblies (200) are arranged at intervals along the second direction (D2), and the branch busbars (210) of the branch busbar assembly (200) are arranged at intervals along the second direction (D2).

6. The busbar partition structure according to claim 5, characterized in that: The insulating base body (310) has first partition side plates (320) that protrude downwards on both sides in the first direction (D1), and the main busbar assembly (100) is located between the first partition side plates (320) on both sides of the insulating base body (310) in the first direction (D1). And / or, for the gap between each pair of adjacent branch rows (210) of the corresponding branch row assembly (200), the insulating seat (300) is provided with first dividing ribs (321) protruding on both sides in the first direction (D1).

7. The busbar partition structure according to claim 5, characterized in that: Corresponding to the gap between each pair of adjacent branch row assemblies (200), the insulating base (300) has second dividing ribs (322) protruding on both sides in the first direction (D1).

8. The busbar partition structure according to claim 5, characterized in that: Corresponding to the gap between each pair of adjacent branch row assemblies (200), the upper side of the insulating base body (310) is provided with a second partition side plate (340) protruding upwards; And / or, for the gap between each pair of adjacent phases of the branch row (210) of the corresponding branch row assembly (200), the upper side of the insulating base body (310) is provided with a second arc-blocking plate (350) protruding upwards respectively; And / or, corresponding to the gap between each pair of adjacent main busbars (110), the lower side of the insulating base body (310) is provided with a first arc-blocking plate (330) protruding downwards.

9. The busbar partition structure according to claim 1 or 5, characterized in that: The length direction, width direction and thickness direction of the main busbar (110) are the second direction (D2), the first direction (D1) and the third direction (D3), respectively; the length direction, width direction and thickness direction of the branch busbar (210) are the first direction (D1), the second direction (D2) and the third direction (D3), respectively.

10. The busbar partition structure according to claim 1, characterized in that: The insulating base (300) is provided with at least one fixing hole (360) that cooperates with the fixing screw (500) and is used to fix the insulating base (300) in the mounting position. The fixing hole (360) is provided through the insulating base (300) in a third direction (D3).

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