Support device for busbar, busbar assembly and power distribution cabinet
By designing multiple pairs of fixing grooves and torsion grooves on the busbar support device, the problems of excessive size and insufficient current carrying capacity of traditional busbar support devices are solved, thereby improving the current carrying capacity and optimizing the spatial layout.
Patent Information
- Application Number
- CN202423286860.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-12-30
Smart Images
Figure CN223729228U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] Example embodiments of the present disclosure generally relate to the field of electrical equipment, and in particular, to a support device for busbars, a busbar assembly, and a power distribution cabinet. BACKGROUND
[0002] Busbars are conductors that collect and distribute electric energy and play a vital role in power distribution cabinets. In a power distribution cabinet, busbars are used to transmit electric energy from a power source end to various electrical equipment or branches. As the power distribution capacity of power distribution cabinets continues to increase, more requirements are placed on the current-carrying capacity of busbars in power distribution cabinets. SUMMARY
[0003] In a first aspect of the present disclosure, a support device for busbars is provided. The support device includes a body and at least one pair of fixing slots formed on the body and adapted to at least partially allow a pair of busbars of the same phase to be inserted, respectively, to fix a pair of busbars, respectively. Each pair of the at least one pair of fixing slots includes a first fixing slot and a second fixing slot formed on two sides of the body along a length direction, respectively, and extending to a middle of the body along a width direction perpendicular to the length direction.
[0004] In some embodiments, the first fixing slot and the second fixing slot are offset by a predetermined first distance along the length direction.
[0005] In some embodiments, the at least one pair of fixing slots includes four pairs of fixing slots formed on the body along the length direction in sequence, and each of the four pairs of fixing slots is arranged to be spaced apart from an adjacent fixing slot by a predetermined second distance.
[0006] In some embodiments, a width of each of the at least one pair of fixing slots is equal to a thickness of the busbar.
[0007] In some embodiments, a bottom corner of the first fixing slot has a round arc chamfer; and / or
[0008] a bottom corner of the second fixing slot has a round arc chamfer.
[0009] In some embodiments, the support device further includes at least one torsion slot formed on the body and arranged to extend along a depth direction perpendicular to the length direction and the width direction.
[0010] In some embodiments, a depth of the torsion slot along the depth direction gradually increases from a first end to a second end, the first end and the second end being two ends of the torsion slot along the width direction, respectively.
[0011] In some embodiments, the support device further includes at least one pair of fixing holes formed on the body at two ends along the length direction for receiving fasteners to couple the body with a cabinet body of a power distribution cabinet.
[0012] According to the support device provided by the embodiments of the present disclosure, a plurality of pairs of bus bars are fixed through a plurality of pairs of fixing grooves formed on the body. The first fixing groove and the second fixing groove of each pair of fixing grooves are respectively arranged on the two sides of the body along the length direction and respectively extend to the middle part of the body. In this way, the bus bars connected to the same phase can be coupled to the body and at least coupled to the body along the width direction. In this way, the space layout of the bus bars can be optimized while increasing the current-carrying value of the bus bars, and the space occupation of the bus bars can be reduced.
[0013] In a second aspect of the present disclosure, a bus bar assembly is provided. The bus bar assembly comprises: at least one pair of bus bars, each pair of bus bars in the at least one pair of bus bars being bus bars of the same phase; and at least one support device provided by the first aspect of the present disclosure, coupled to the at least one pair of bus bars to fix the pair of bus bars.
[0014] In some embodiments, the bus bar assembly further comprises: a plurality of current equalization bars, each current equalization bar in the plurality of current equalization bars being arranged between a pair of bus bars and coupled to the pair of bus bars.
[0015] In a third aspect of the present disclosure, a power distribution cabinet is provided. The power distribution cabinet comprises: a cabinet body; and a bus bar assembly provided by the second aspect of the present disclosure, wherein the support device of the bus bar assembly is coupled to the cabinet body by a fastener.
[0016] It should be understood that the content described in this part of the content is not intended to limit the key features or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become apparent through the following description. BRIEF DESCRIPTION OF DRAWINGS
[0017] The above and other features, advantages, and aspects of embodiments of the present disclosure will become more apparent by describing in detail the following embodiments with reference to the attached drawings. In the drawings, the same or similar reference numerals refer to the same or similar elements, and:
[0018] Figure 1 Fig. 1 shows a schematic diagram of the overall structure of a bus bar assembly according to some embodiments of the present disclosure;
[0019] Figure 2 Fig. 2 shows a schematic diagram of the overall structure of a support device according to some embodiments of the present disclosure;
[0020] Figure 3 Fig. 3 shows a front view of a support device according to some embodiments of the present disclosure; and
[0021] Figure 4 Fig. 4 shows an enlarged view of detail A in Fig. 3 according to some embodiments of the present disclosure. Figure 3 DETAILED DESCRIPTION
[0022] Embodiments of the present disclosure will be described in more detail with reference to the drawings. While certain embodiments of the present disclosure are shown in the drawings, it is understood that the present disclosure can be embodied in various forms and should not be interpreted as being limited to the embodiments set forth herein, but rather, these embodiments are provided so that the present disclosure can be more thoroughly and completely understood. It is understood that the drawings of the present disclosure and the embodiments are for exemplary purposes only and are not intended to limit the scope of protection of the present disclosure.
[0023] It should be noted that the titles of any sections / sub-sections provided herein are not limiting. Various embodiments are described throughout this document and any type of embodiment can be included under any section / sub-section. Furthermore, embodiments described in any section / sub-section can be combined with any other embodiment described in the same section / sub-section and / or a different section / sub-section in any manner.
[0024] In the description of embodiments of the present disclosure, the term "includes" and its derivatives, such as "including," should be understood in an open, inclusive sense, that is, "including, but not limited to." The term "based on" should be understood as "based at least in part on." The term "one embodiment" or "the embodiment" should be understood as "at least one embodiment." The term "some embodiments" should be understood as "at least some embodiments." Other explicit or implicit definitions can also be included below. The terms "first," "second," etc. can refer to different or the same objects. Other explicit and implicit definitions can also be included below.
[0025] As briefly mentioned above, as the power distribution capacity of the power distribution cabinet is continuously developing, higher requirements are put forward for the current-carrying capacity of the busbar in the power distribution cabinet. However, the volume of the traditional busbar support device is too large, and if the number or size of the busbar is simply increased, it will result in a large space occupation of the busbar in the power distribution cabinet, thereby affecting the layout of other equipment in the power distribution cabinet.
[0026] The support device for busbar, busbar assembly and power distribution cabinet provided according to the present disclosure are to solve or at least partially solve the above-mentioned problems and other potential problems existing in the traditional scheme. According to some embodiments of the present disclosure, the support device for busbar fixes a plurality of pairs of busbars through a plurality of pairs of fixing slots formed on the body. The first fixing slot and the second fixing slot of each pair of fixing slots are respectively arranged on both sides of the body along the length direction and respectively extend to the middle part of the body. In this way, a pair of busbars connected to the same phase can be coupled to the body and at least in the width direction. In this way, the space layout of the busbar can be optimized while increasing the current-carrying value of the busbar, and the space occupation of the busbar can be reduced.
[0027] Figure 1An overall structural schematic diagram of a busbar assembly is shown according to some embodiments of the present disclosure. As shown in Figure 1 The busbar assembly includes at least one pair of busbars 7 and a support device coupled to the busbars 7. The busbar assembly is arranged between a power supply end and a plurality of electrical equipment and is adapted to distribute power supply to the electrical equipment. In some embodiments, the busbar assembly is installed in a power distribution cabinet, which includes a cabinet body, and the busbar assembly is fixed at a predetermined position in the cabinet body, so that the busbars 7 can supply power to electrical equipment in the cabinet body.
[0028] The busbars 7 of the busbar assembly are arranged in pairs, and each pair of busbars 7 is connected to the same phase of the power supply end. In some embodiments, the busbar assembly includes four pairs of busbars 7, the first pair of busbars 7 in the four pairs of busbars 7 is connected to the A phase of the power supply of the power distribution cabinet, the second pair of busbars 7 is connected to the B phase of the power supply of the power distribution cabinet, the third pair of busbars 7 is connected to the C phase of the power supply of the power distribution cabinet, and the fourth pair of busbars 7 is connected to the N phase of the power supply of the power distribution cabinet. Thus, the busbar assembly can provide three-phase live wire power supply and one-phase zero line power supply to electrical equipment inside the power distribution cabinet.
[0029] In some embodiments, the busbar assembly further includes a plurality of current equalization bars, each of which is arranged between and coupled to a pair of busbars 7. The current equalization bar is adapted to electrically connect a pair of busbars 7, so as to evenly distribute the current of a phase connected to the pair of busbars 7 on the pair of busbars 7. In some embodiments, a plurality of current equalization bars are arranged on a pair of busbars 7, and the plurality of current equalization bars are arranged along the extension direction of the busbars 7.
[0030] Figure 2 An overall structural schematic diagram of a support device is shown according to some embodiments of the present disclosure,
[0031] Figure 3 A front view of the support device is shown according to some embodiments of the present disclosure. As shown in Figure 2 and Figure 3 The support device is coupled to at least one pair of busbars 7 of the busbar assembly and includes a body 1 and at least one pair of fixing slots formed on the body 1. The at least one pair of fixing slots are adapted to at least partially accommodate and fix the at least one pair of busbars 7, respectively.
[0032] Specifically, each pair of fixing slots includes a first fixing slot 2 and a second fixing slot 3, which are respectively formed on both sides of the body 1 along the length direction and extend to the middle of the body, respectively. A pair of busbars 7 (for example, the first pair of busbars 7 connected to the A phase) is at least partially inserted into the first fixing slot 2 and the second fixing slot 3, respectively, so that the pair of busbars can be fixed on both sides of the body 1 along the width direction of the body 1.
[0033] In some embodiments, the width of each fixing groove is equal to the thickness of the busbar 7, so that the busbar 7 can be stably fixed in the fixing groove. In some other embodiments, the width of the fixing groove can be slightly smaller than the thickness of the busbar 7, so that the stability of the busbar 7 installed in the fixing groove can be improved by the tight fit of the busbar 7 and the side wall of the fixing groove. In some embodiments, the width of the fixing groove can also be slightly larger than the thickness of the busbar 7, thereby facilitating the coupling of the busbar to the fixing groove.
[0034] In some embodiments, the first fixing groove 2 and the second fixing groove 3 are staggered by a predetermined first distance along the length direction of the body 1. When the two busbars 7 are respectively inserted into the first fixing groove 2 and the second fixing groove 3, the two busbars 7 can be spaced apart by the first distance along the length direction.
[0035] In some embodiments, the support device can be arranged with multiple fixing grooves along the extension direction of the busbar 7. In this way, the two busbars 7 respectively coupled to the first fixing groove 2 and the second fixing groove 3 can be kept at a uniform first spacing along the width direction.
[0036] In some embodiments, the support device includes four pairs of fixing grooves corresponding to the four pairs of busbars 7 connected to the three-phase live wires and one-phase zero wire. In some embodiments, the four pairs of fixing grooves are formed on the body 1 along the length direction of the body 1, and each fixing groove of the four pairs of fixing grooves is spaced apart from the adjacent fixing groove by a predetermined second distance.
[0037] If the four pairs of busbars 7 are respectively coupled to the four pairs of fixing grooves of the support device, each busbar 7 of the four pairs of busbars can be spaced apart from the adjacent busbar 7 by the predetermined second distance along the length direction of the body 1 under the limiting of the four pairs of fixing grooves. In this way, the phase-to-phase insulation between the busbars 7 of different phases can be ensured. In some embodiments, the first spacing and the second spacing can be equal, that is, each two adjacent busbars 7 of the four pairs of busbars 7 are kept at an equal spacing along the length direction.
[0038] Figure 4 An enlarged view of detail A in Figure 3 is shown. As shown in Figure 4 In some embodiments, a pair of bottom corners of the first fixing groove 2 away from the opening direction has a round-arc-shaped chamfer 4. Similarly, in some other embodiments, a pair of bottom corners of the second fixing groove 3 away from the opening direction has a round-arc-shaped chamfer 4. By chamfering 4 the bottom corners of the fixing groove, the local stress during the processing of the support device can be released, the stress concentration of the bottom corners of the support device can be reduced, and the yield rate and service life of the support device during processing can be improved.
[0039] As shown in Figure 2 and Figure 3As shown, in some embodiments, the support device further comprises a torsion slot 5 formed on the surface of the body 1 and extending along a depth direction perpendicular to the length direction and the width direction of the body 1. In some embodiments, the torsion slot 5 can be provided with a plurality of torsion slots 5 formed at different positions of the body 1 respectively. For example, the support device comprises two torsion slots 5 arranged at the two ends of the body 1 along the length direction respectively. In some embodiments, the torsion slot 5 comprises a first end and a second end arranged along the width direction of the body 1. The depth of the torsion slot 5 along the depth direction increases between the first end and the second end. The provision of the torsion slot 5 can improve the torsion resistance of the support device, thereby improving the stability of the support device in fixing the busbar 7.
[0040] In some embodiments, the support device further comprises at least one pair of fixing holes 6 arranged on the side wall of the body 1 at the two ends along the length direction, the fixing hole 6 being adapted to accommodate the insertion of a fastener and coupled with the fastener to be fixed on the cabinet body of the power distribution cabinet through the fastener. For example, the fastener can be a bolt which can pass through the cabinet body of the power distribution cabinet and be screwed with the fixing hole 6. Thus, the support device and the busbar 7 coupled to the support device are fixed in the cabinet body.
[0041] The implementations of the disclosure have been described above with the foregoing specification, which is exemplary and not exhaustive of the disclosed implementations. Modifications and alterations of the implementations will occur to those skilled in the art upon reading the foregoing specification and may be made in the practices of the disclosure without departing from the scope and spirit of the disclosed implementations. The use of the terms "example" and "exemplary" is intended to convey that they are used to illustrate an implementation, an implementation simply providing an example of one or more ways to implement an implementation. Any implementation described herein as "example" or "exemplary" is provided solely to more fully describe the implementations. The terms "example" and "exemplary" should not be construed as indicating a preferred or advantageous implementation. The terms "comprise", "comprising", "comprises", "include", "including", and "includes" are used synonymously to denote a disclosure open, inclusive, to equivalents. The terms "coupled", "coupling", and "coupling" are used synonymously to denote an operational coupling, whether directly or indirectly. The terms "can", "can", and "can" are used synonymously to denote an optional implementation.
Claims
1. A support device for a busbar, characterized in that Comprising: a body (1); and at least one pair of fixing slots formed on the body and adapted to allow at least partially insertion of a pair of busbars (7) of the same phase respectively to fix the pair of busbars (7) respectively, each pair of the at least one pair of fixing slots comprising: a first fixing slot (2) and a second fixing slot (3) formed respectively on two sides of the body (1) along a length direction and extending respectively to a middle part of the body (1) along a width direction perpendicular to the length direction. The first fixing slot (2) and the second fixing slot (3) are staggered by a predetermined first distance along the length direction.
2. The support device of claim 1, wherein The at least one pair of fixing slots comprises:
3. The support device of claim 2, wherein, four pairs of fixing slots formed on the body (1) sequentially along the length direction of the body (1), each of the four pairs of fixing slots is arranged to be spaced apart from the adjacent fixing slot by a predetermined second distance. The width of each of the at least one pair of fixing slots is equal to the thickness of the busbar (7).
4. The support device of claim 1, wherein, The bottom corner of the first fixing slot (2) has a round arc-shaped chamfer (4); and / or 5. The support device according to any one of claims 1-4, characterized in that, The bottom corner of the second fixing slot (3) has a round arc chamfer (4). Further comprising:
6. The support device according to any one of claims 1-4, wherein, at least one torsion slot (5) formed on the body and arranged to extend along a depth direction perpendicular to the length direction and the width direction. The depth of the torsion slot (5) along the depth direction gradually increases from a first end to a second end, the first end and the second end being two ends of the torsion slot (5) along the width direction respectively.
7. The support apparatus of claim 6, wherein Further comprising:
8. The support device according to any one of claims 1-4 and 7, characterized in that, at least one pair of fixing holes (6) formed respectively on two ends of the body along the length direction for receiving fasteners to couple with a cabinet body of a power distribution cabinet. Comprising:
9. A busbar assembly characterized by, at least one pair of busbars (7), each pair of the at least one pair of busbars (7) being busbars (7) of the same phase; and at least one supporting device according to any one of claims 1-7 of the present disclosure coupled to the at least one pair of busbars (7) to fix the pair of busbars (7). Further comprising:
10. The busbar assembly of claim 9, wherein, a plurality of current equalization bars, each of the plurality of current equalization bars being arranged between a pair of busbars (7) and coupled with the pair of busbars (7) respectively. Comprising:
11. A power distribution cabinet, characterized by a cabinet body; and The busbar assembly according to claim 9 or 10, wherein the supporting device of the busbar assembly is coupled to the cabinet body by fasteners.