Device for supporting busbar and switchgear

Abstract

The present disclosure relates to an apparatus (10) for supporting a busbar and a switchgear. The device comprises: at least one pair of supports, each pair comprising: a first busbar support (110) comprising a first groove (112) extending through the first busbar support (110) in a thickness direction (Z); and a second busbar support body (120) disposed opposite the first busbar support body (110) and including a second groove (122) extending through the second busbar support body (120) in a thickness direction (Z), where the first groove (112) and the second groove (122) are disposed opposite to each other to form a shape adapted to receive a busbar in the thickness direction (Z), the thickness direction (Z) being parallel to or coincident with the thickness direction (Z) of the busbar; and the first fixing frame (130) is fixed with the at least one pair of supporting bodies and is configured to support the at least one pair of supporting bodies.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of power transmission, and in particular to a switchgear and a device for supporting busbars in the switchgear. BACKGROUND

[0002] Busbars are commonly used in switchgears to transmit power. A large number of busbars are arranged in the switchgear, which are adjacent to each other and arranged in high density in the switchgear. For the switchgear, especially for low and medium voltage switchgears, the busbars need to be reliably fixed in the switchgear, especially to prevent busbars of different phases from being too close or even contacting each other even if the busbars are deformed or twisted. Conventional busbar support devices are not satisfactory in use, and it is desirable to further improve the busbar support devices. SUMMARY

[0003] It is an object of the present disclosure to provide a device for supporting busbars and a switchgear to solve one or more of the above problems and other potential technical problems.

[0004] A first aspect of the present disclosure provides a device for supporting busbars. The device comprises: at least one pair of support bodies made of insulating material and comprising a length direction, a width direction and a thickness direction, each pair of support bodies comprising: a first busbar support body comprising a first slot extending through the first busbar support body in the thickness direction; and a second busbar support body arranged opposite to the first busbar support body and comprising a second slot extending through the second busbar support body in the thickness direction, wherein the first slot and the second slot are arranged opposite to each other to form a shape suitable for receiving the busbar in the thickness direction, the thickness direction being parallel or consistent with the thickness direction of the busbar; and a first fixing frame fixed together with the at least one pair of support bodies and configured to support the at least one pair of support bodies. The device for supporting busbars according to the present disclosure can provide reliable support for the busbars and has enhanced safety.

[0005] In some embodiments, the first busbar support body can comprise a pair of first holes respectively extending through the first busbar support body in the length direction and located on both sides of the first slot; the second busbar support body comprises a pair of second holes respectively extending through the second busbar support body in the length direction and located on both sides of the second slot; and the device further comprises at least one pair of threaded fasteners extending along the length direction, each of the threaded fasteners being configured to extend through the corresponding first hole and the corresponding second hole to fix the first busbar support body and the second busbar support body to the first fixing frame.

[0006] In some embodiments, the first busbar support can include a pair of first lateral segments respectively located on both sides of the first slot in the width direction, the pair of first holes being respectively located at the respective first lateral segments; and the second busbar support includes a pair of second lateral segments respectively located on both sides of the second slot in the width direction, the pair of second holes being respectively located at the respective second lateral segments, the pair of first lateral segments being separated from the respective second lateral segments by a gap in a state where the at least one pair of supports are fixed together.

[0007] In some embodiments, only one of the pair of first lateral segments can include a first post protruding in the length direction, the first post being provided with a hole allowing the threaded fastener to pass through, the first post being received in the respective second hole; and only one of the pair of second lateral segments includes a second post protruding in the length direction, the second post being provided with a hole allowing the threaded fastener to pass through, the second post being received in the respective first hole.

[0008] In some embodiments, each of the pair of first lateral segments can include a post protruding in the length direction, the first hole extending through the post, the post being received in the respective second hole in a state where the first busbar support and the second busbar support are fixed together.

[0009] In some embodiments, the first fixing bracket can be disposed on one side of the length direction of the at least one pair of supports, and the first fixing bracket is fastened to the threaded fastener via at least one nut.

[0010] In some embodiments, the threaded fastener and the first fixing bracket can each be made of a metal material.

[0011] In some embodiments, the at least one pair of supports can include a first pair of supports, a second pair of supports, a third pair of supports arranged adjacent to each other in the width direction, the first pair of supports, the second pair of supports, the third pair of supports configured to receive a first phase busbar, a second phase busbar, a third phase busbar, respectively; the first fixture is disposed at one side of the length direction of the at least one pair of supports and is configured to connect second busbar supports of the first pair of supports, second busbar supports of the second pair of supports, second busbar supports of the third pair of supports to each other; and the device further includes a second fixture disposed at the other side of the length direction of the at least one pair of supports, the second fixture is configured to connect first busbar supports of the first pair of supports, first busbar supports of the second pair of supports, first busbar supports of the third pair of supports to each other.

[0012] In some embodiments, the device can further include a position adjustment device configured to adjust positions of the first pair of supports, the second pair of supports, the third pair of supports along respective threaded fasteners of the at least one pair of threaded fasteners in the length direction.

[0013] In some embodiments, the position adjustment device can include three position adjustment assemblies for the first pair of supports, the second pair of supports, the third pair of supports, respectively, each of the position adjustment assemblies including: a first adjustment member disposed at a first side of the length direction of the first busbar support of each pair of supports and including a pair of threaded holes adapted for the pair of threaded fasteners to pass through and threadedly engage with the respective threaded fastener; a pair of second adjustment members disposed at a second side of the length direction of the second busbar support of each pair of supports and movably disposed on the respective threaded fastener, the second side being opposite to the first side, each of the pair of second adjustment members being rotatable relative to the threaded fastener to change the position of each pair of supports in the length direction.

[0014] In some embodiments, the first busbar support can include a groove at the first side, the groove receiving the first adjustment member in a form-fitting manner.

[0015] In some embodiments, the position adjustment device can comprise: a first elongated hole disposed on a first side of the length direction of the first busbar support of each pair of supports, the first elongated hole extending through the first busbar support in the thickness direction and at least partially in the length direction, the first busbar support being fixed to the first fixed frame via a first fastener disposed in the thickness direction; and a second elongated hole disposed on a second side of the length direction of the second busbar support of each pair of supports, the second side being opposite to the first side, the second elongated hole extending through the second busbar support in the thickness direction and at least partially in the length direction, the second busbar support being fixed to the second fixed frame via a second fastener disposed in the thickness direction; wherein the position adjustment device is configured to adjust the position of the first fastener and the second fastener in the length direction in the respective elongated hole to adjust the position of the first pair of supports, the second pair of supports, the third pair of supports in the length direction.

[0016] In some embodiments, the first busbar support can comprise a first mounting portion protruding from the main body thereof in the length direction, the first mounting portion comprising two of the first elongated holes; and the second busbar support can comprise a second mounting portion protruding from the main body thereof in the length direction, the second mounting portion comprising two of the second elongated holes.

[0017] In some embodiments, the busbar can comprise a tubular cross-section.

[0018] A second aspect of the present disclosure provides a switchgear. The switchgear comprises: at least one busbar; and at least one device for supporting a busbar according to the first aspect. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and other objects, features and advantages of embodiments of the present disclosure will be readily understood with reference to the following detailed description read in conjunction with the drawings, wherein the same reference numerals and characters denote the same elements throughout the drawings. Several embodiments of the present disclosure are illustrated in the drawings.

[0020] Figure 1 An overall schematic view of a switchgear according to an embodiment of the present disclosure is shown.

[0021] Figure 2 A perspective schematic view of a device for supporting a busbar according to a first embodiment of the present disclosure is shown, with the busbar disposed on the device.

[0022] Figure 3 A perspective schematic view of a device for supporting a busbar according to a first embodiment of the present disclosure is shown, with the busbar removed from the device.

[0023] Figure 4 A structural diagram of a busbar support of the device for supporting a busbar according to the first embodiment of the present disclosure is shown.

[0024] Figure 5 An exploded diagram of the device for supporting a busbar according to the first embodiment of the present disclosure is shown.

[0025] Figure 6 A perspective diagram of the device for supporting a busbar according to the second embodiment of the present disclosure is shown.

[0026] Figure 7 A plan view of the device for supporting a busbar according to the second embodiment of the present disclosure is shown.

[0027] Figure 8 An exploded diagram of the device for supporting a busbar according to the second embodiment of the present disclosure is shown.

[0028] Figure 9 A plan view of the device for supporting a busbar according to the third embodiment of the present disclosure is shown.

[0029] Figure 10 A structural diagram of a busbar support of the device for supporting a busbar according to the third embodiment of the present disclosure is shown.

[0030] Figure 11 An exploded diagram of the device for supporting a busbar according to the third embodiment of the present disclosure is shown.

[0031] In the various drawings, like or corresponding elements are denoted by like or corresponding reference numerals. DETAILED DESCRIPTION

[0032] Preferred embodiments of the present disclosure will be described in greater detail below with reference to the accompanying drawings. While preferred embodiments of the present disclosure are shown in the drawings, it is understood that the present disclosure can be embodied in various forms without being limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art.

[0033] Reference to "one embodiment" or "an embodiment" in the framework of this specification is intended to indicate that a particular configuration, arrangement or characteristic described in relation to that embodiment is included in at least one embodiment. Thus, appearances of such phrases in various aspects of the specification are not necessarily all referring to the same embodiment. Furthermore, the particular configurations, arrangements or characteristics can be combined in any suitable way in one or more embodiments.

[0034] The term "includes" and its variants are meant to cover non-exclusive inclusions, i.e., that the listed items are among a list of items, but not excluding others. Unless specifically stated otherwise, the term "or" as used herein is intended to mean an inclusive "or," i.e., the term "or" as used herein is the inclusive or unless it is specifically stated otherwise. The term "based on" means "based at least in part on." The terms "one example embodiment" and "an example embodiment" mean "at least one example embodiment." The term "another embodiment" means "at least one additional example embodiment." The terms "upper," "lower," "front," "back," and the like as used herein refer to the orientation or position shown in the figures and are used for convenience only to describe the principles of the present disclosure and are not meant to limit or confuse the scope of the disclosure as described in the claims to the orientation or position shown in the figures.

[0035] Figure 1 A general schematic view of a switchgear 1 according to an embodiment of the present disclosure is shown. The switchgear 1 can be implemented, for example, in the form of a switch cabinet, inside which various switching devices (such as circuit breakers, etc.), multi-phase busbars 20 for transmitting electric power, various electric parameter detection components, etc. can be arranged. The switchgear 1 generally includes three-phase busbars or four-phase busbars, and includes a plurality of branch circuits. This makes the density of the busbars inside the switchgear extremely high, which poses a great threat to the safety of electric power. These busbars 20 need to be fixed to the frame of the switch cabinet by means of one or more devices 10.

[0036] Conventionally, supports such as insulators are used to fix the busbars to the switch cabinet. Such insulator supports are not suitable for scenarios of misaligned busbar arrangement and small inter-busbar spacing. In particular, when the spacing between different phase busbars is small, once a phase busbar is deformed greatly, it is extremely easy for the phase busbar to come into contact with the adjacent phase busbar, which poses a great risk to the safety of electric power. According to the present disclosure, a device for supporting busbars is provided, which can achieve reliable support of the busbars. The device for supporting busbars according to an embodiment of the present disclosure is described in detail below with reference to the accompanying drawings. Figures 2-11 , a detailed description of the device for supporting busbars according to an embodiment of the present disclosure is provided.

[0037] Figures 2-5 A structural schematic view of a device 10 for supporting busbars according to a first embodiment of the present disclosure is shown. Figure 2 A view showing the state in which the busbars 20 are supported by the device 10 is shown, Figure 3 A view showing the busbars being removed from the device 10 is shown. As Figures 2-3 shown, the device 10 can include at least one pair of support bodies and a fixing frame 130. In the illustrated embodiment, three pairs of support bodies are shown. It should be understood that this is merely exemplary. In other embodiments, the support bodies can be one pair or four pairs, or another number.

[0038] Each pair of support bodies can include a length direction X, a width direction Y, and a thickness direction Z. Each pair of support bodies includes a first busbar support body 110 and a second busbar support body 120 arranged opposite to the first busbar support body 110. The first busbar support body 110 and the second busbar support body 120 have the same or similar shape. The first busbar support body 110 and the second busbar support body 120 are arranged opposite to each other and jointly form a space suitable for holding a busbar 20.

[0039] In some embodiments, as shown in Figure 3 The first busbar support body 110 can include a first slot 112 extending through the first busbar support body 110 in the thickness direction Z. Similarly, the second busbar support body 120 can include a second slot 122 extending through the second busbar support body 120 in the thickness direction Z. In a state where the first busbar support body 110 and the second busbar support body 120 are mounted together, the first slot 112 and the second slot 122 form a shape suitable for receiving the busbar 20 in the thickness direction Z. As shown in Figure 2 The thickness direction Z is parallel or identical to the thickness direction Z of the busbar.

[0040] In the illustrated embodiment, the busbar 20 includes a circular tube cross section, which particularly helps to achieve a chimney effect of the busbar and to facilitate heat dissipation. It should be understood that the busbar 20 can be of other suitable shapes. The first slot 112 and the second slot 122 can similarly be formed in other shapes matching the shape of the busbar. In some embodiments, the aperture formed by the first slot 112 and the second slot 122 in combination can have a size slightly smaller than the outer circumference of the busbar 20, which can better hold the busbar.

[0041] Each pair of support bodies is made of an insulating material. As an example, it can be injection molded from an insulating material. In some embodiments, the support bodies can be die cast from an insulating material. The dielectric capability of the busbar 20 and adjacent busbars can be effectively enhanced by the insulating material. This makes it possible to arrange multiple busbars in close proximity.

[0042] The fixing frame 130 is fixed together with the first busbar support body 110 and the second busbar support body 120 to support the first busbar support body 110 and the second busbar support body 120. The fixing frame 130 can be made of a high-strength material, for example, it can be made of a metal such as steel. The fixing frame 130 can include components for fastening, such as holes, and by means of the holes and fasteners such as screws, the fixing frame 130 can be fixed to a suitable position of the switchgear cabinet.

[0043] Figure 4 A structural schematic diagram of a busbar support body 110 of an apparatus for supporting a busbar according to a first embodiment of the present disclosure is shown. The first busbar support body 110 and the second busbar support body 120 can have similar structures. As shown in Figure 4 andFigure 5 As shown, the busbar support 110 can comprise a pair of first holes 116 (only one is shown in the figure), which can be located at both sides of the first slot 112 and respectively extend through the first busbar support 110 in the length direction X.

[0044] Similarly, the second busbar support can comprise a pair of second holes (not shown), which are located at both sides of the second slot 122 and respectively extend through the second busbar support 120 in the length direction X. As Figure 5 As shown, the device 10 can further comprise at least one pair of threaded fasteners 150 extending along the length direction X. Each threaded fastener 150 is configured to extend through a respective first hole and a respective second hole. Thereby, the first busbar support 110 and the second busbar support 120 can be fixed together by means of the threaded fasteners 150. By such a step, the mounting strength between the first busbar support 110 and the second busbar support 120 can be ensured.

[0045] In some embodiments, as Figure 4 and Figure 5 shown, the first busbar support 110 can comprise a pair of first lateral sections 111, 113 respectively located at both sides of the first slot 112 in the width direction Y. Similarly, the second busbar support 120 comprises a pair of second lateral sections respectively located at both sides of the second slot 122 in the width direction Y. In a state where the first busbar support 110 and the second busbar support 120 are fixed together, the pair of first lateral sections 111, 113 are respectively separated from the corresponding second lateral sections by a gap, for example 1 mm. The gap provided between the first lateral sections 111, 113 and the corresponding second lateral sections allows a firm fixation of the busbar support device when the first busbar support 110 and the second busbar support 120 are fixed, for example via the threaded fasteners 150. In some embodiments, the pair of first holes are respectively located at the corresponding first lateral sections 111, 113, and the pair of second holes are respectively located at the corresponding second lateral sections.

[0046] In some embodiments, as Figure 4 and Figure 5As shown, only one of the pair of first lateral segments 111, 113 of the first busbar support 110 can include a post 114 protruding in the length direction X, within which a hole 115 can be provided to allow the threaded fastener 150 to pass through. The second busbar support 120 can be of the same structure as the first busbar support 110, and in use, only needs to be arranged in mirror symmetry with the first busbar support 110. In the state where the first busbar support 110 and the second busbar support 120 are fixed together, the first post 114 of the first busbar support 110 is received in the corresponding second hole of the second busbar support 120. This is particularly advantageous in the case where the threaded fastener 150 is made of metal. In particular, by providing the post 114, the creepage distance from the busbar 20 to the threaded fastener 150 can be greatly increased, thereby improving the dielectric performance of the device 10.

[0047] In some embodiments (not shown), each of the pair of first lateral segments 111, 113 of the first busbar support 110 includes a post protruding in the length direction X, within which a first hole extends. Correspondingly, the second busbar support 120 is provided with no post but only a hole. In the state where the first busbar support 110 and the second busbar support 120 are fixed together, the post is received in the corresponding hole in the second busbar support 120. By providing the post, the creepage distance from the busbar 20 to the threaded fastener 150 can also be greatly increased, thereby improving the dielectric performance of the device 10.

[0048] In some embodiments, as Figure 5 As shown, the fixing bracket 130 can be provided on one side of the length direction X of the at least one pair of supports. The threaded fastener 150 can be provided to pass through the first hole of the first busbar support 110, the second hole of the second busbar support 120, and then reach the side where the fixing bracket 130 is located, in sequence, from the other side of the length direction X of the at least one pair of supports. On the side where the fixing bracket 130 is located, the nut 152 can be screwed onto the threaded fastener 150, thereby fixing the fixing bracket 130, the first busbar support 110, and the second busbar support 120 together. In the case where the posts 114, 124 are provided in the first hole of the first busbar support 110 and the second busbar support 120, the dielectric performance can be improved by the insulating material provided by the posts 114, 124. In some embodiments, the nut 152 can be welded to the fixing bracket 130.

[0049] In some embodiments, as Figure 5As shown, at least one pair of supports may include a first pair of supports, a second pair of supports, and a third pair of supports arranged adjacently in the width direction Y. The first pair of supports, the second pair of supports, and the third pair of supports are configured to receive a first phase busbar, a second phase busbar, and a third phase busbar, respectively. The device 10 may also include a second mounting bracket 140 disposed on the other side of the at least one pair of supports in the length direction X. The second mounting bracket 140 is configured to connect the first busbar supports 110 of the first pair of supports, the first busbar supports 110 of the second pair of supports, and the first busbar supports 110 of the third pair of supports together. The second mounting bracket 140 may be provided with through holes 142 to connect these components together by passing threaded fasteners 150 through them.

[0050] In some embodiments, such as Figure 5 As shown, the first busbar support 110 may include a groove 118 on one side along the length direction X, and the shape of the second fixing bracket 140 may be adapted to the shape of the groove 118. In some embodiments, the second fixing bracket 140 may be embedded in the groove 118. This can significantly enhance the resistance of the first busbar support 110 to deformation and improve the safety of the system. For example, even if the first busbar support 110 deforms, the second fixing bracket 140 can firmly hold the first busbar support 110, preventing the risk of short circuit due to busbar displacement between the first busbar support 110 and the second busbar support 120.

[0051] In some embodiments, such as Figure 5 As shown, the second busbar support 120 may include a groove 128 on one side along the length direction X, and the shape of at least a portion of the fixing bracket 130 may be adapted to the shape of the groove 128. In some embodiments, at least a portion of the fixing bracket 130 may be embedded in the groove 128. This can significantly enhance the second busbar support 120's resistance to deformation and improve the system's safety.

[0052] In some embodiments, the positions of the pairs of supports can be adjusted. This allows different busbars to be arranged in a staggered manner. In particular, as... Figure 6 , Figure 7 and Figure 9 As shown, the first pair of supports, the second pair of supports, and the third pair of supports can be staggered in the longitudinal direction. This is particularly advantageous in situations where the machining accuracy of the busbar is low or where the busbars need to be staggered. The device 10 may include a position adjustment device configured to adjust the positions of the first pair of supports, the second pair of supports, and the third pair of supports along corresponding threaded fasteners 150 in at least one pair of threaded fasteners 150 in the longitudinal direction X.

[0053] Figures 6-8A schematic view of an apparatus 10 for supporting busbars according to a second embodiment of the present disclosure is shown, which allows the position of each pair of support bodies to be adjusted. Figures 6-8 The pairs of support bodies shown are similar to Figures 3-5 The embodiments shown are similar, with the differences from the previous embodiments being highlighted.

[0054] In some embodiments, as Figures 6-8 shown, the position adjustment apparatus can include three position adjustment assemblies for the first pair of support bodies, the second pair of support bodies, and the third pair of support bodies, respectively. Each position adjustment assembly can include a first adjustment member 156 and a pair of second adjustment members 154. The first adjustment member 156 is disposed on a first side of the length direction X of the first busbar support body 110 of each pair of support bodies. In some embodiments, the first adjustment member 156 is an elongated member. In some embodiments, as Figure 8 shown, the first busbar support body 110 can include a recess 118 in which the first adjustment member 156 can be received. The first adjustment member 156 can include a pair of threaded holes 157. The pair of threaded holes 157 are adapted for a pair of threaded fasteners 150 to pass through and threadably engage with the corresponding threaded fasteners 150. In some embodiments, the first adjustment member can be made of metal, whereby the strength of the apparatus 10 can be enhanced.

[0055] The pair of second adjustment members 154 are disposed on opposite second sides of the length direction X of the second busbar support body 120 of each pair of support bodies. Each second adjustment member 154 is movably disposed on a corresponding threaded fastener 150. Each second adjustment member 154 is rotatable relative to the threaded fastener 150 to change the position of each pair of support bodies in the length direction X. As an example, the second adjustment member 154 can be in the form of a nut.

[0056] In operation of the position adjustment apparatus, the position of the first adjustment member 156 can be determined according to the position of the busbar 20. Once the position of the busbar 20 is determined, the position of the first busbar support body 110 and the second busbar support body 120 can be moved by rotating the second adjustment member 154 on the threaded fastener 150, and then the first busbar support body 110 and the second busbar support body 120 can be secured to the first adjustment member 156. In this way, the position of the first busbar support body 110 and the second busbar support body 120 can be conveniently adjusted.

[0057] In some embodiments, as Figure 7 shown, the apparatus 10 can further include side support members 162, 164 that enclose the pairs of support bodies, which can further enhance the structural strength of the apparatus.

[0058] Figures 9-11 A schematic view of an apparatus 10 for supporting busbars according to a third embodiment of the present disclosure is shown, which allows the position of each pair of support bodies to be adjusted.Figures 9-11 The pair of support bodies shown and Figures 3-5 The embodiment shown is similar to the foregoing embodiment, and the differences from the foregoing embodiment are mainly described.

[0059] In some embodiments, as Figures 9-11 The first side of the length direction X of the first busbar support body 110 of each pair of support bodies can be provided with a first elongated hole 119, as shown. The first elongated hole 119 extends through the first busbar support body 110 in the thickness direction Z and extends at least partially in the length direction X. The first busbar support body 110 is fixed to the second fixing frame 140 via the first fastener 172 provided in the thickness direction Z. Similarly, the second side of the length direction X of the second busbar support body 120 of each pair of support bodies can be provided with a second elongated hole 129. The second elongated hole 129 extends through the second busbar support body 120 in the thickness direction Z and extends at least partially in the length direction X, and the second busbar support body 120 is fixed to the first fixing frame 130 via the second fastener 174 provided in the thickness direction Z.

[0060] In some embodiments, as Figure 10 and Figure 11 The first busbar support body 110 can include a first mounting portion 117 protruding from the main body thereof in the length direction X, as shown. The first mounting portion 117 includes two first elongated holes 119. The structure of the second busbar support body 120 is the same as that of the first busbar support body 110. In the embodiment shown, the number of first elongated holes 119 is a pair. It should be understood that this is only exemplary, and the number of first elongated holes can be other numbers.

[0061] In some embodiments, the fixing frames 130 and 140 can include an open slot, and the mounting portion 117 of the first busbar support body 110 and the mounting portion of the second busbar support body 120 can be fitted in the open slot. The fixing frames 130, 140 can be provided with an opening at a position corresponding to the elongated hole 119, 129 to facilitate the position adjustment of the fastener 172, 174. It should be understood that the embodiment shown is only exemplary, and in other embodiments, the fixing frames 130 and 140 can be formed in a flat plate shape.

[0062] When adjusting the positions of the pairs of support bodies, the positions of the first pair of support bodies, the second pair of support bodies, and the third pair of support bodies in the length direction X can be conveniently adjusted by adjusting the positions of the first fastener 172 and the second fastener 174 in the corresponding elongated hole in the length direction X. Thus, the misalignment adjustment of the busbar can be conveniently achieved.

[0063] Moreover, while operations are depicted in a particular order, this should not be understood as requiring such order nor that all illustrated operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing can be advantageous. Likewise, while several specific implementation details are contained in the above discussion, these should not be construed as limitations on the scope of the disclosure, but rather as descriptions of particular implementations. Certain features that are described in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable sub-combination.

[0064] Although the subject matter has been described in language specific to structural features and / or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.

[0065] Embodiments of the present disclosure have been described above, with examples illustrating, but not exhaustively, and without limitation, the various embodiments disclosed. Numerous modifications and adaptations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of words used in this document is intended to best explain the principles of the embodiments, practical application, or technical improvement in the art, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A device (10) for supporting a busbar (20), comprising: at least one pair of support bodies made of insulating material and comprising a length direction (X), a width direction (Y) and a thickness direction (Z), each pair of support bodies comprising: a first busbar support body (110) comprising a first slot (112) extending through said first busbar support body (110) in said thickness direction (Z); and a second busbar support body (120) arranged opposite said first busbar support body (110) and comprising a second slot (122) extending through said second busbar support body (120) in said thickness direction (Z), wherein said first slot (112) and said second slot (122) are arranged opposite to form a shape adapted to receive said busbar in said thickness direction (Z), said thickness direction (Z) being parallel or coincident with a thickness direction (Z) of said busbar; and a first fixing frame (130) fixed together with said at least one pair of support bodies and configured to support said at least one pair of support bodies.

2. The apparatus (10) of claim 1, wherein said first busbar support body (110) comprises a pair of first holes respectively extending through said first busbar support body (110) in said length direction (X) and located on two sides of said first slot (112); said second busbar support body (120) comprises a pair of second holes respectively extending through said second busbar support body (120) in said length direction (X) and located on two sides of said second slot (122); and said device (10) further comprises at least one pair of threaded fasteners (150) extending along said length direction (X), each said threaded fastener (150) being configured to extend through a respective said first hole and a respective said second hole to fix said first busbar support body (110) and said second busbar support body (120) to said first fixing frame (130).

3. The device (10) according to claim 2, wherein said first busbar support body (110) comprises a pair of first lateral sections (111, 113) respectively located on two sides of said first slot (112) in said width direction (Y), said pair of first holes being respectively located at respective said first lateral sections (111, 113); and said second busbar support body (120) comprises a pair of second lateral sections respectively located on two sides of said second slot (122) in said width direction (Y), said pair of second holes being respectively located at respective said second lateral sections, said pair of first lateral sections (111, 113) being respectively separated from respective said second lateral sections by a gap in a state where said at least one pair of support bodies are fixed together.

4. The apparatus (10) according to claim 3, wherein only one first lateral section (111) of the pair of first lateral sections (111, 113) comprises a first post (114) projecting in the length direction (X), the first post (114) being provided with a hole (115) allowing the threaded fastener (150) to pass through, the first post (114) being received in the corresponding second hole; and only one second lateral section (111) of the pair of second lateral sections comprises a second post (124) projecting in the length direction (X), the second post (124) being provided with a hole allowing the threaded fastener (150) to pass through, the second post (114) being received in the corresponding first hole.

5. The apparatus (10) according to claim 3, wherein each first lateral section of the pair of first lateral sections (111, 113) comprises a post projecting in the length direction (X), the first hole extending through the post, the post being received in the corresponding second hole in a state where the first busbar support (110) and the second busbar support (120) are fixed together.

6. The apparatus (10) according to claim 2, wherein the first fixing bracket (130) is provided on one side of the length direction (X) of the at least one pair of supports, and the first fixing bracket (130) is fastened to the threaded fastener (150) via at least one nut (152).

7. The apparatus (10) according to any one of claims 2-6, wherein the threaded fastener (150) and the first fixing bracket (130) are each made of a metal material.

8. The apparatus (10) according to any one of claims 2-6, wherein the at least one pair of supports comprises a first pair of supports, a second pair of supports, a third pair of supports arranged adjacent in the width direction (Y), the first pair of supports, the second pair of supports, the third pair of supports being configured to receive a first phase busbar, a second phase busbar, a third phase busbar, respectively; the first fixing bracket (130) is provided on one side of the length direction (X) of the at least one pair of supports, and is configured to connect the second busbar support (120) of the first pair of supports, the second busbar support (120) of the second pair of supports, the second busbar support (120) of the third pair of supports to each other; and the apparatus (10) further comprises a second fixing bracket (140) provided on the other side of the length direction (X) of the at least one pair of supports, the second fixing bracket (140) being configured to connect the first busbar support (110) of the first pair of supports, the first busbar support (110) of the second pair of supports, the first busbar support (110) of the third pair of supports to each other.

9. The apparatus (10) of claim 8, further comprising position adjustment means configured to adjust a position of the first pair of support bodies, the second pair of support bodies, the third pair of support bodies along respective ones of the at least one pair of threaded fasteners (150) in the length direction (X).

10. The apparatus (10) of claim 9, wherein the position adjustment means comprises three position adjustment assemblies for the first pair of support bodies, the second pair of support bodies, the third pair of support bodies, respectively, each of the position adjustment assemblies comprising: a first adjustment member (156) disposed on a first side of the first busbar support body (110) in the length direction (X) and including a pair of threaded holes adapted for passage of the pair of threaded fasteners (150) and threaded engagement with respective ones of the threaded fasteners (150); a pair of second adjustment members (154) disposed on a second side of the second busbar support body (120) in the length direction (X) and movably disposed on the respective ones of the threaded fasteners (150), the second side being opposite the first side, each of the pair of second adjustment members (154) being rotatable relative to the threaded fasteners (150) to change a position of each of the pair of support bodies in the length direction (X).

11. The apparatus (10) of claim 10, wherein the first busbar support body (110) includes a recess (118) on the first side that receives the first adjustment member (156) in a form-fitting manner.

12. The apparatus (10) of claim 9, wherein the position adjustment means comprises: a first elongated hole (119) disposed on a first side of the first busbar support body (110) in the length direction (X), the first elongated hole (119) extending through the first busbar support body (110) in the thickness direction (Z) and at least partially in the length direction (X), the first busbar support body (110) being secured to the second fixed frame (140) via first fasteners (172) disposed in the thickness direction (Z); and a second elongated hole (129) disposed on a second side of the second busbar support body (120) in the length direction (X), the second side being opposite the first side, the second elongated hole (129) extending through the second busbar support body (120) in the thickness direction (Z) and at least partially in the length direction (X), the second busbar support body (120) being secured to the first fixed frame (130) via second fasteners (174) disposed in the thickness direction (Z). wherein said position adjustment means are configured to adjust the position of said first fastener (172) and said second fastener (174) in said length direction (X) in the respective elongated hole to adjust the position of said first pair of support bodies, said second pair of support bodies, said third pair of support bodies in said length direction (X).

13. The device (10) according to claim 9, wherein said first busbar support body (110) comprises a first mounting portion (117) protruding from its main body in said length direction (X), said first mounting portion (117) comprising two of said first elongated holes (119); and said second busbar support body (120) comprises a second mounting portion protruding from its main body in said length direction (X), said second mounting portion comprising two of said second elongated holes (129).

14. The device (10) according to claim 1, wherein said busbar (20) comprises a tubular cross section.

15. A switchgear comprising: at least one busbar (20); and at least one device (10) for supporting a busbar according to any one of claims 1-14. ​

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