Insulation three-phase copper bar assembly
The design of the limiting plate and the connecting plate solves the problems of insulation and installation efficiency between three-phase copper busbar components, thereby improving the insulation effect and simplifying the installation process.
Patent Information
- Application Number
- CN202520292603.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-24
AI Technical Summary
The lack of insulation between existing three-phase copper busbar components results in a high risk of short circuits and low installation efficiency.
The design employs a combination of a limiting plate and a connecting plate. The connecting plate separates the copper busbars, increasing the insulation effect, and the snap-fit structure between the limiting plate and the embedded groove ensures stable installation.
It effectively improves the insulation between copper busbars, simplifies the installation process, avoids the risk of short circuits, and improves installation efficiency.
Smart Images

Figure CN223743910U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of copper busbar assembly technology, and in particular to an insulated three-phase copper busbar assembly. Background Technology
[0002] A three-phase copper busbar assembly is an electrical connection device used to distribute three-phase power from a power transformer or power supply equipment to different loads or electrical devices. The three-phase copper busbar assembly consists of three parallel copper busbars, each corresponding to one phase of the three-phase alternating current. It is made of high-purity copper material, has good conductivity, and can effectively transmit high current.
[0003] Most existing three-phase copper busbar assemblies are placed one by one inside the housing without any insulating blocks between them, resulting in poor insulation and a tendency for short circuits. Furthermore, the individual installation of copper busbars requires adjustment of their installation positions, affecting the overall installation efficiency. Therefore, those skilled in the art have provided an insulated three-phase copper busbar assembly to solve the problems mentioned in the background art. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose an insulated three-phase copper busbar assembly, which makes the installation of copper busbars more convenient. Through the cooperation of the limiting plate and the connecting plate, the insulation effect between copper busbars is effectively increased.
[0005] To achieve the above objectives, the present invention provides the following technical solution: an insulated three-phase copper busbar assembly, comprising a housing mechanism, a first copper busbar, a second copper busbar, a third copper busbar, and two connecting plates. Mounting blocks are fixedly provided on the opposite end faces of the first and third copper busbars. Two grooves are provided on the lower end face of the second copper busbar. Mounting slots are provided on the opposite end faces of the two connecting plates.
[0006] The outer shell mechanism includes an upper shell and a lower shell. Limiting plates are fixedly installed on both sides of the inner bottom surface of the lower shell, and surrounding plates are fixedly installed on both sides of the inner bottom surface of the lower shell. Embedding grooves are opened on both sides of the upper end surface of the lower shell, and embedding plates are fixedly installed on both sides of the lower end surface of the upper shell.
[0007] Furthermore, two support blocks are fixedly disposed on the lower side between the opposite end faces of the two connecting plates, and the two support blocks are respectively disposed inside the two grooves.
[0008] Furthermore, anti-slip protrusions are fixedly provided on the opposite end faces of the two mounting slots, and the two mounting blocks are slidably disposed inside the two mounting slots respectively.
[0009] Furthermore, the first copper busbar, the second copper busbar, and the third copper busbar are all disposed inside the outer casing mechanism, and the two connecting plates are respectively disposed between the first copper busbar, the second copper busbar, and the third copper busbar.
[0010] Furthermore, the first copper busbar is positioned in front of the second copper busbar, and the third copper busbar is positioned behind the second copper busbar.
[0011] Furthermore, the two limiting plates are respectively disposed between the first copper busbar, the second copper busbar and the third copper busbar, and the surrounding plate is disposed on the opposite end face of the first copper busbar and the third copper busbar.
[0012] Furthermore, three front grooves are provided on one side of the front end face of the upper and lower housings, and the front ends of the first copper busbar, the second copper busbar and the third copper busbar are respectively disposed inside the three front grooves.
[0013] Furthermore, a slot is provided on the lower side of the opposite end face of each of the two embedded slots, and a locking block is fixedly provided on the lower side of the opposite end face of each of the two embedded plates, with the two locking blocks respectively engaging inside the two slots.
[0014] This utility model has the following beneficial effects:
[0015] 1. The present invention proposes an insulated three-phase copper busbar assembly, in which two connecting plates are respectively set in front of and behind the second copper busbar. The separation of the two connecting plates avoids contact between the three copper busbars, thus preventing short circuits caused by direct contact between the copper busbars. The mounting blocks on the first and second copper busbars are slid into the mounting grooves to achieve the connection between the first, second and third copper busbars. The assembled copper busbars are easier to install and do not need to be installed one by one.
[0016] 2. The present invention proposes an insulated three-phase copper busbar assembly. The copper busbars are inserted into the lower housing, and a limiting plate is inserted between the copper busbars. Through the cooperation of the limiting plate and the connecting plate, the insulation effect between the copper busbars is effectively increased. The ends of the first and third copper busbars slide into the surrounding plate, thereby fixing the position of the copper busbars. This makes it easier to close the upper housing and prevents the holes from being difficult to align with the upper ends of the copper busbars. The embedded plate at the bottom of the upper housing slides into the embedded groove of the lower housing, and the locking block and the locking groove engage to fix the assembly, thereby facilitating the installation of the outer shell structure. Attached Figure Description
[0017] Figure 1 This is an isometric schematic diagram of the present invention;
[0018] Figure 2 This is an exploded view of the present invention;
[0019] Figure 3 This is an isometric schematic diagram of the copper busbar of this utility model;
[0020] Figure 4 This is an isometric view of the connecting plate of this utility model;
[0021] Figure 5 This is an isometric view of the lower housing of this utility model.
[0022] Legend:
[0023] 1. Outer shell mechanism; 2. First copper busbar; 3. Second copper busbar; 4. Third copper busbar; 5. Mounting block; 6. Groove; 7. Connecting plate; 8. Anti-slip protrusion; 9. Mounting groove; 10. Support block; 101. Lower shell; 102. Upper shell; 103. Front groove; 104. Embedded plate; 105. Locking block; 106. Locking groove; 107. Limiting plate; 108. Enclosure plate; 109. Embedded groove. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Reference Figures 1-4 An embodiment of this utility model is provided: an insulated three-phase copper busbar assembly, including a housing mechanism 1, a first copper busbar 2, a second copper busbar 3, a third copper busbar 4 and two connecting plates 7. Mounting blocks 5 are fixedly provided on the opposite end faces of the first copper busbar 2 and the third copper busbar 4. Two grooves 6 are opened on the lower end face of the second copper busbar 3. Mounting grooves 9 are opened on the opposite end faces of the two connecting plates 7.
[0026] Two support blocks 10 are fixedly installed on the lower side between the opposite end faces of the two connecting plates 7. The two support blocks 10 are respectively installed inside the two grooves 6. Anti-slip protrusions 8 are fixedly installed on the opposite end faces of the two mounting grooves 9. The two mounting blocks 5 are respectively slidably installed inside the two mounting grooves 9. The first copper busbar 2, the second copper busbar 3 and the third copper busbar 4 are all installed inside the outer shell mechanism 1. The two connecting plates 7 are respectively installed between the first copper busbar 2, the second copper busbar 3 and the third copper busbar 4. The first copper busbar 2 is installed in front of the second copper busbar 3 and the third copper busbar 4 is installed behind the second copper busbar 3.
[0027] Specifically, the second copper busbar 3 is wrapped by two connecting plates 7, which have good insulation properties. The separation between the two connecting plates 7 prevents the three copper busbars from contacting each other. The support block 10 between the connecting plates 7 enters the groove 6 below the second copper busbar 3. Then, the mounting blocks 5 on the first copper busbar 2 and the second copper busbar 3 are slid into the mounting groove 9, realizing the mutual installation of the first copper busbar 2, the second copper busbar 3 and the third copper busbar 4. Moreover, anti-slip protrusions 8 are provided inside the mounting groove 9, which can effectively prevent the mounting blocks 5 from falling out of the mounting groove 9. The spliced copper busbars are easier to install and do not need to be installed one by one.
[0028] Reference Figure 2 , Figure 5 The outer shell mechanism 1 includes an upper shell 102 and a lower shell 101. Limiting plates 107 are fixedly installed on both sides of the inner bottom surface of the lower shell 101. Enclosing plates 108 are fixedly installed on both sides of the inner bottom surface of the lower shell 101. Embedding grooves 109 are opened on both sides of the upper end surface of the lower shell 101. Embedding plates 104 are fixedly installed on both sides of the lower end surface of the upper shell 102.
[0029] Two limiting plates 107 are respectively disposed between the first copper busbar 2, the second copper busbar 3 and the third copper busbar 4. The surrounding plate 108 is disposed on the opposite end face of the first copper busbar 2 and the third copper busbar 4. Three front grooves 103 are provided on one side of the front end face of the upper housing 102 and the lower housing 101. The front ends of the first copper busbar 2, the second copper busbar 3 and the third copper busbar 4 are respectively disposed inside the three front grooves 103. Two embedding grooves 109 are each provided with a slot 106 on the lower side of the opposite end face. Two embedding plates 104 are each fixedly provided with a locking block 105 on the lower side of the opposite end face. The two locking blocks 105 are respectively locked into the two slots 106.
[0030] Specifically, copper busbars are inserted into the lower housing 101, and limiting plates 107 are inserted between the copper busbars. Through the cooperation of limiting plates 107 and connecting plates 7, the insulation effect between the copper busbars is effectively increased. Moreover, the ends of the first copper busbar 2 and the third copper busbar 4 are slid into the enclosure 108, thereby fixing the position of the copper busbars. This makes it easier for the upper housing 102 to be closed, and there will be no situation where the holes and the upper ends of the copper busbars are difficult to align. The outer shell mechanism 1 is closed, allowing the upper ends of the copper busbars to pass through the upper housing 102. The front end of the copper busbars is covered inside the front groove 103. The embedding plate 104 below the upper housing 102 slides into the embedding groove 109 of the lower housing 101. The locking block 105 and the locking groove 106 engage to fix the components, which facilitates the installation of the outer shell.
[0031] Working principle: The second copper busbar 3 is wrapped by two connecting plates 7, the support block 10 enters the groove 6, and then the mounting blocks 5 on the first copper busbar 2 and the second copper busbar 3 are slid into the mounting groove 9 to realize the mutual installation of the first copper busbar 2, the second copper busbar 3 and the third copper busbar 4. Then the copper busbars are put into the lower housing 101, and the limiting plate 107 is inserted between the copper busbars. The two ends of the first copper busbar 2 and the third copper busbar 4 are slid into the surrounding plate 108 respectively, thereby fixing the position of the copper busbars. Then the outer shell mechanism 1 is closed, allowing the upper end of the copper busbar to pass through the upper housing 102. The front end of the copper busbar is covered in the front groove 103. The embedding plate 104 under the upper housing 102 slides into the embedding groove 109 of the lower housing 101. The locking block 105 and the locking groove 106 engage to fix the components. Moreover, the copper busbars are separated by multiple structures, which can achieve good insulation effect.
[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 insulated three-phase copper bar assembly comprising a housing means (1), a first copper bar (2), a second copper bar (3), a third copper bar (4) and two connection plates (7), characterized in that: The first copper row (2) and the third copper row (4) opposite one side end face is fixedly provided with mounting block (5), the second copper row (3) lower end face is provided with two recesses (6), two the connecting plate (7) opposite side end face is provided with mounting groove (9); The shell mechanism (1) includes an upper shell (102) and a lower shell (101), the lower shell (101) is fixedly provided with a limiting plate (107) on the inner bottom surface of both sides, the lower shell (101) is fixedly provided with a coaming (108) on the inner bottom surface of both sides, the lower shell (101) is provided with an embedding groove (109) on the upper end surface of both sides, and the upper shell (102) is fixedly provided with an embedding plate (104) on the lower end surface of both sides.
2. An insulated three-phase copper busbar assembly according to claim 1, characterized in that: Two connecting plates (7) are fixedly provided with two supporting blocks (10) between the opposite side end faces of the lower side, and two supporting blocks (10) are respectively arranged in the two recesses (6).
3. An insulated three-phase copper busbar assembly according to claim 1, characterized in that: Two mounting grooves (9) are fixedly provided with anti-skid convex blocks (8) on the opposite side end faces, and two mounting blocks (5) are respectively arranged in the two mounting grooves (9).
4. An insulated three-phase copper busbar assembly according to claim 1, characterized in that: The first copper row (2), the second copper row (3) and the third copper row (4) are arranged in the shell mechanism (1), and two connecting plates (7) are respectively arranged between the first copper row (2), the second copper row (3) and the third copper row (4).
5. An insulated three-phase copper busbar assembly according to claim 1, characterized in that: The first copper row (2) is arranged in front of the second copper row (3), and the third copper row (4) is arranged behind the second copper row (3).
6. An insulated three-phase copper busbar assembly according to claim 1, characterized in that: Two limiting plates (107) are respectively arranged between the first copper row (2), the second copper row (3) and the third copper row (4), and the coaming (108) is arranged on the opposite side end face of the first copper row (2) and the third copper row (4).
7. An insulated three-phase copper busbar assembly according to claim 1, characterized in that: The upper shell (102) and the lower shell (101) are provided with three front grooves (103) on one side of the front end surface, and the first copper row (2), the second copper row (3) and the third copper row (4) are respectively arranged in the three front grooves (103).
8. An insulated three-phase copper busbar assembly according to claim 1, characterized in that: Two embedding grooves (109) are provided with clamping grooves (106) on the lower side of the opposite side end face, and two embedding plates (104) are fixedly provided with clamping blocks (105) on the lower side of the opposite side end face, and two clamping blocks (105) are respectively arranged in the two clamping grooves (106).