Common-box bus
By adding insulators and locking covers to the common busbar, multi-layer busbar conductor integration is achieved, solving the problems of complex equipment connection and high cost in the existing technology, and realizing efficient equipment connection and cost savings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING DAQUAN TAILAI ELECTRIC CO LTD
- Filing Date
- 2025-04-11
- Publication Date
- 2026-05-08
AI Technical Summary
Existing shared busbars cannot connect one device to multiple devices, have complex installation structures, occupy a large space, and are costly.
By increasing the number of second insulators, multiple layers of busbar conductors can be integrated within the common busbar enclosure to meet various connection requirements, reduce the number of common busbars and support structures, and use insulators and locking covers to fix the busbar conductor components.
It significantly reduces the number of shared busbars, saves on material and labor installation costs, improves space utilization, and reduces operating costs.
Smart Images

Figure CN224217860U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of power distribution equipment technology, and more specifically, to a common busbar. Background Technology
[0002] A common-enclosure busbar is a device used in power systems for transmitting and distributing electrical energy. It integrates multiple busbar conductors into one enclosure, saving space and improving power distribution efficiency, and is therefore widely used in various power systems.
[0003] Currently, commercially available common busbars typically have only one layer of busbar conductors. Therefore, common busbars only support one-to-one connections between devices on either side, and cannot support connections from one device to multiple devices, or interconnections between multiple devices. To connect multiple devices, multiple common busbars need to be installed between them, with connections between devices achieved through these individual common busbars. This results in a complex installation structure, requires significant space, and has high installation and operating costs. Utility Model Content
[0004] This application provides a common busbar that can improve the connection efficiency of multiple devices, effectively reduce the number of common busbars, reduce space occupation, and save installation and operating costs.
[0005] This application provides a common busbar, comprising:
[0006] The housing, which encloses and forms an installation cavity;
[0007] At least two busbar conductors are disposed in the mounting cavity along a first direction;
[0008] The first insulator is fixed to the bottom surface of the mounting cavity, and the top surface of the first insulator is provided with a first mounting groove;
[0009] At least one second insulator is provided above the first insulator, and each second insulator is distributed along a first direction. The top and bottom surfaces of the second insulators are respectively provided with a second mounting groove and a third mounting groove. The third mounting groove and the first mounting groove cooperate to fix the busbar conductor.
[0010] A locking cover is provided on the upper part of the second insulator. The bottom surface of the locking cover is provided with a fourth mounting groove. The fourth mounting groove and the second mounting groove cooperate to fix the bus conductor.
[0011] A connecting locking member is used to connect and lock the first insulator, all the bus conductors, all the second insulators, and the locking cover along the first direction.
[0012] In some embodiments, there are multiple first insulators, which are arranged in an array along a second direction and a third direction and fixed to the bottom surface of the cavity; the number of second insulators is the same as the number of first insulators, and each second insulator corresponds to each first insulator.
[0013] The first direction, the second direction, and the third direction are arranged to intersect each other.
[0014] In some embodiments, a plurality of first insulators are distributed at equal intervals along the second direction.
[0015] In some embodiments, the connecting locking member includes two connecting rods and two locking nuts. The top surface of the first insulator is provided with two limiting grooves. The second insulator is provided with two first insertion grooves along the first direction. The locking cover is provided with two second insertion grooves along the second direction. The connecting rods pass through the limiting grooves, the first insertion grooves and the second insertion grooves in sequence and are fixed by the locking nuts.
[0016] In some embodiments, the opening size of the first mounting groove gradually decreases along the first direction and toward the bottom surface of the cavity; the opening size of the third mounting groove gradually increases along the first direction and away from the bottom surface of the cavity.
[0017] In some embodiments, the opening size of the fourth mounting groove gradually expands along the first direction and toward the bottom surface of the cavity; the opening size of the second mounting groove gradually shrinks along the first direction and away from the bottom surface of the cavity.
[0018] In some embodiments, both the first mounting groove and the third mounting groove include a first guide wall and a first positioning wall. The first guide wall is used to guide the assembly of the bus conductor, and the first positioning wall is connected to the first guide wall to fix the bus conductor.
[0019] In some embodiments, both the second mounting groove and the fourth mounting groove include a second guide wall and a second positioning wall. The second guide wall is used to guide the assembly of the bus conductor, and the second positioning wall is connected to the second guide wall to fix the bus conductor.
[0020] In some embodiments, the common busbar further includes an insulating cover fitted over the outside of the busbar conductor.
[0021] In some embodiments, the connecting rod further includes an insulating sleeve disposed outside the connecting rod, or the connecting rod is an insulating rod.
[0022] Compared to current solutions that connect multiple devices using multiple shared busbars, the shared busbar provided in this application, by increasing the number of second insulators, can integrate multiple layers of busbar conductors within a single shared busbar. This satisfies the connection needs between one device and multiple devices outside the shared busbar, as well as between multiple devices, meeting various connection requirements of devices on both sides of the shared busbar. It can significantly reduce the number of shared busbars, correspondingly reducing the number of shared busbar enclosures required, and also reducing the number of hangers or supports for the shared busbars. It is smaller in size, has higher space utilization, stronger environmental adaptability, and saves on material costs, labor installation costs, and operating costs. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0024] Figure 1 Front view of a common busbar provided for some embodiments of this application;
[0025] Figure 2 A side view of a common busbar provided for some embodiments of this application.
[0026] The attached figures are labeled as follows:
[0027] 1-Enclosure; 2-First insulator; 3-Second insulator; 4-Busbar conductor; 5-Locking cover; 6-Connecting locking component;
[0028] 11-Mounting cavity; 61-Connecting rod; 62-Locking nut;
[0029] X - First direction; Y - Second direction; Z - Third direction. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0031] In this application, "multiple" means two or more (including two).
[0032] Please refer to Figure 1 and Figure 2 , Figure 1 A schematic diagram of the common busbar provided in this application; Figure 2 A side view of a common busbar provided for some embodiments of this application.
[0033] This application provides a common-enclosure busbar, including an enclosure 1, at least two busbar conductors 4, a first insulator 2, at least one second insulator 3, a locking cover 5, and a connecting locking member 6. The enclosure 1 encloses a mounting cavity 11, and the busbar conductors 4, the first insulator 2, each of the second insulators 3, the locking cover 5, and the connecting locking member 6 are all installed inside the mounting cavity 11. The first insulator 2 is installed on the bottom surface of the mounting cavity 11 of the enclosure 1. Specifically, the first insulator 2 can be fixed to the frame at the bottom of the enclosure 1 using fasteners or threads. The second insulator 3 is disposed above the first insulator 2, and there is at least one second insulator 3, with each second insulator 3 distributed along a second direction Y.
[0034] The top surface of the first insulator 2 is provided with a first mounting groove, and the top and bottom surfaces of the second insulator 3 are respectively provided with a second mounting groove and a third mounting groove. The second and third mounting grooves may, but are not limited to, be located in the middle of the second insulator 3. For example, they may also be located on the front or rear side of the top or bottom surface of the mounting groove located in the middle. Optionally, the third mounting groove and the first mounting groove are arranged opposite to each other along the first direction X, so that the busbar conductor 4 is formed Figure 1 The vertical mounting structure shown has a third mounting slot that works in conjunction with the first mounting slot to fix the busbar conductor 4.
[0035] The locking cover 5 is located on the upper part of the second insulator 3. The bottom surface of the locking cover 5 is provided with a fourth mounting groove, which cooperates with the second mounting groove to fix the busbar conductor 4. The fourth mounting groove and the second mounting groove are arranged opposite each other along the first direction X to ensure that the busbar conductor 4 is installed vertically. After the connecting locking member 6 provides locking force to the locking cover 5, the busbar conductor 4 is locked more firmly and reliably.
[0036] The connecting locking component 6 can connect and lock the first insulator 2, all the busbar conductors 4, all the second insulators 3, and the locking cover 5 along the first direction X. The third mounting groove cooperates with the first mounting groove to fix the busbar conductors 4, so as to ensure that the first insulator 2, the second insulator 3, and the busbar conductors 4 under the locking cover 5 are clamped and installed under force.
[0037] The common busbar provided in this application can be configured with at least two layers of busbar conductors 4 according to the actual connection requirements of the equipment, so as to at least satisfy the connection between one piece of equipment on one side of the common busbar and at least two pieces of equipment on the other side, or to satisfy the connection between at least two pieces of equipment on one side of the common busbar and at least two pieces of equipment on the other side. The equipment in this application may include, but is not limited to, power cabinets, transformers, etc.
[0038] The first insulator 2 can be one, two, or more, and is fixedly installed in the mounting cavity 11. When there are two first insulators 2, they can be arranged along the second direction or along the third direction. Correspondingly, the number of second insulators 3 is equal to or greater than the number of first insulators 2, and the second insulators 3 can be arranged in one layer or multiple layers. When the second insulators 3 are set as one layer, the second insulators 3 are arranged in a one-to-one correspondence with the first insulators 2. When the second insulators 3 are set as two or more layers, the second insulators 3 are set on the upper part of the first insulators 2 and distributed along the distribution direction of the first insulators 2. The locking cover 5 is set on the upper part of the uppermost second insulator 3.
[0039] Multiple first insulators 2 can jointly support a single busbar conductor 4, or two or more first insulators 2 can form a group, with each group supporting one busbar conductor 4. Multiple groups of first insulators 2 can support multiple busbar conductors 4. Multi-layered second insulators 3 can accommodate multiple layers of busbar conductors 4. This provides for connections between one or more devices, as well as connections between multiple devices, thus meeting diverse connection requirements.
[0040] Furthermore, multiple first insulators 2 can be simultaneously arranged in an array along the second direction Y and the third direction Z and fixed to the bottom surface of the cavity. That is, there can be at least two busbar conductors 4 in the same layer. The number of second insulators 3 in the same layer is the same as the number of first insulators 2, and each second insulator 3 corresponds to each first insulator 2. The second insulators 3 can be arranged in one layer, two layers, or multiple layers. When two or more layers are arranged, multiple busbar conductors 4 can be arranged along the first direction X and the second direction Y to ensure the connection between multiple devices.
[0041] It should be noted that the first direction X, the second direction Y, and the third direction Z are intersecting each other. For example, the first direction in this application can be... Figure 2 In the X direction, the second direction can be Figure 1 and Figure 2 In the Y direction, the third direction can be Figure 1 The Z direction in the equation.
[0042] To ensure reliable connection, each first insulator 2, each second insulator 3, each locking cover 5, and each bus conductor 4 in the above embodiment are provided with mounting holes. After the connecting locking member 6 passes through the mounting holes of each component along the second direction Y, it is locked and fixed at the upper part of the locking cover 5. The locking cover 5 is used in conjunction with the connecting locking member 6 for fastening, and the first insulators 2 are connected to each other using the connecting locking member 6.
[0043] In one specific embodiment, the opening size of the first mounting groove gradually decreases in the first direction X and toward the bottom surface of the cavity, and the opening size of the third mounting groove gradually increases in the first direction X and away from the bottom surface of the cavity.
[0044] The first and third mounting slots are arranged opposite to each other, and together they form the mounting space for the bus conductor component 4. The opening of the first mounting slot can gradually decrease in size and transition smoothly, or it can first decrease, then increase, and then decrease again, generally exhibiting a gradual decreasing trend. This embodiment of the application is not limited to this. The opening size of the third mounting slot can be gradually increased. For example, the third mounting slot can gradually decrease in size and transition smoothly, or it can generally exhibit a gradual decreasing trend. This arrangement facilitates the installation of the bus conductor component 4, allowing it to be well-fitted and fixed when it moves to the end of the mounting slot.
[0045] Optionally, both the first mounting slot and the third mounting slot include a first guide wall and a first positioning wall. The first guide wall is used to guide the bus conductor 4 into the mounting slot, and the first positioning wall is connected to the first guide wall to fix the bus conductor 4.
[0046] Taking the first mounting groove as an example, a first guide wall is formed circumferentially, and at least a portion of the first guide wall gradually decreases in size along the insertion direction of the busbar conductor 4. The first guide wall and the first positioning wall form the first mounting groove, with the first positioning wall located at the bottom of the first mounting groove. During assembly, the busbar conductor 4 enters the first mounting groove along the first guide wall and is finally positioned by the first positioning wall, thereby ensuring that the busbar conductor 4 is installed quickly and accurately, and with less effort.
[0047] Furthermore, along the first direction and toward the bottom surface of the cavity, the opening size of the fourth mounting groove gradually expands, and along the first direction and away from the bottom surface of the cavity, the opening size of the second mounting groove gradually shrinks. The opening of the second mounting groove can gradually shrink, and the opening of the fourth mounting groove can gradually expand, or it can generally show a decreasing or expanding trend. This application embodiment does not limit this, as long as the insertion and positioning of the bus conductor 4 is achieved.
[0048] Both the second mounting slot and the fourth mounting slot include a second guide wall and a second positioning wall. The second guide wall is used to guide the assembly of the bus conductor 4, and the second positioning wall is connected to the second guide wall to fix the bus conductor 4.
[0049] In one embodiment, the connecting locking component 6 includes two connecting rods 61 and two locking nuts 62. The top surface of the first insulator 2 has two limiting grooves, the second insulator 3 has two first insertion grooves along a first direction, and the locking cover 5 has two second insertion grooves along a second direction Y. The connecting rods 61 pass sequentially through the limiting grooves, the first insertion grooves, and the second insertion grooves and are fixed by the locking nuts 62. This connecting locking component 6 has a simple structure, provides a firm and reliable lock, and has an adjustable locking force.
[0050] In addition, an insulating cover is provided on the outside of the bus conductor 4, which can insulate the bus conductor 4 and meet the connection requirements of the equipment.
[0051] Furthermore, an insulating sleeve can be provided on the outside of the connecting rod 61 and / or the outside of the connecting rod 61, or the connecting rod 61 can be set as an insulating rod to ensure that the connecting rod 61 is insulated and to meet the connection requirements of the equipment.
[0052] It should be noted that the first direction in this application can be... Figure 1 and Figure 2 In the X direction, the second direction in this application can be Figure 1 In the Y direction, the third direction can be Figure 2 The Z direction in the equation.
[0053] It should be noted that the busbar conductor in this application may be, but is not limited to, copper busbar conductors. For example, it may also be aluminum busbars (aluminum busbars), copper-aluminum composite busbars, etc. This application does not limit the scope of the application.
[0054] The common busbar provided in this application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.
Claims
1. A common-enclosure busbar, characterized in that, include: Box (1), the box (1) encloses to form an installation cavity (11); At least two busbar conductors (4) are disposed in the mounting cavity (11) along a first direction; The first insulator (2) is fixed to the bottom surface of the mounting cavity (11), and the top surface of the first insulator (2) is provided with a first mounting groove. At least one second insulator (3) is disposed on the upper part of the first insulator (2), and each second insulator (3) is distributed along the first direction. The top surface and bottom surface of the second insulator (3) are respectively provided with a second mounting groove and a third mounting groove. The third mounting groove and the first mounting groove cooperate to fix the bus conductor (4). A locking cover (5) is provided on the upper part of the second insulator (3). The bottom surface of the locking cover (5) is provided with a fourth mounting groove. The fourth mounting groove and the second mounting groove cooperate to fix the bus conductor (4). Connecting locking member (6), the connecting locking member (6) is used to connect and lock the first insulator (2), all the bus conductors (4), all the second insulators (3) and the locking cover (5) along the first direction.
2. The common busbar according to claim 1, characterized in that, There are multiple first insulators (2), and the multiple first insulators (2) are arranged in an array along the second direction and the third direction and are fixed to the bottom surface of the cavity; The number of the second insulators (3) is the same as the number of the first insulators (2), and each second insulator (3) is set in a one-to-one correspondence with each first insulator (2); The first direction, the second direction, and the third direction are arranged to intersect each other.
3. The common busbar according to claim 2, characterized in that, Along the second direction, a plurality of first insulators (2) are distributed at equal intervals, and along the third direction, a plurality of first insulators (2) are distributed at equal intervals.
4. The common busbar according to claim 2 or 3, characterized in that, The connecting locking component (6) includes two connecting rods (61) and two locking nuts (62). The top surface of the first insulator (2) is provided with two limiting grooves. The second insulator (3) has two first insertion grooves along the first direction. The locking cover (5) has two second insertion grooves along the second direction. The connecting rods (61) pass through the limiting grooves, the first insertion grooves and the second insertion grooves in sequence and are fixed by the locking nuts (62).
5. The common busbar according to any one of claims 1 to 3, characterized in that, Along the first direction and toward the bottom surface of the cavity, the opening size of the first mounting groove gradually decreases; Along the first direction and away from the bottom surface of the cavity, the opening size of the third mounting groove gradually increases.
6. The common busbar according to claim 5, characterized in that, Along the first direction and toward the bottom surface of the cavity, the opening size of the fourth mounting groove gradually expands; Along the first direction and away from the bottom surface of the cavity, the opening size of the second mounting groove gradually decreases.
7. The common busbar according to claim 6, characterized in that, Both the first mounting groove and the third mounting groove include a first guide wall and a first positioning wall. The first guide wall is used to guide the assembly of the bus conductor (4), and the first positioning wall is connected to the first guide wall to fix the bus conductor (4).
8. The common busbar according to claim 7, characterized in that, Both the second mounting groove and the fourth mounting groove include a second guide wall and a second positioning wall. The second guide wall is used to guide the assembly of the bus conductor (4), and the second positioning wall is connected to the second guide wall to fix the bus conductor (4).
9. The common busbar according to claim 4, characterized in that, The common busbar also includes an insulating cover fitted over the outside of the busbar conductor (4).
10. The common busbar according to claim 9, characterized in that, The connecting rod (61) further includes an insulating sleeve disposed outside the connecting rod (61), or the connecting rod (61) is an insulating rod.