Flexible connector between bus ducts and bus duct with special plug

Abstract

The invention discloses a flexible connector between bus ducts and a bus duct with a special plug, and the flexible connector comprises a connecting plug which is connected with two bus ducts to be connected and is used for conducting electric power; wherein the connecting plug comprises a plurality of plug bodies matched with the end parts of the bus duct; the plug body comprises two connecting plugs, an accommodating space arranged between the two connecting plugs, and a flexible connecting body arranged in the accommodating space, and two ends of the flexible connecting body are connected with the plug body. According to the flexible connector between the bus ducts and the bus duct with the special plug, the connecting plugs are arranged to be electrically connected and mechanically fixed with the conductor ends of the bus ducts, the flexible connector is connected between the connecting plugs, and the flexible connector can be connected between the connecting plugs through bending, stretching or twisting deformation of the flexible connector. And the relative vibration or displacement between the two sections of bus ducts is absorbed and buffered.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bus duct connector, in particular to a flexible connector between bus ducts and a bus duct with special plug. BACKGROUND

[0002] In the power transmission and distribution system, bus ducts are used as a key device to efficiently and safely distribute power among multiple power-consuming devices. In application scenarios such as data centers, modern factories, shipbuilding plants, etc., the bus duct system often suffers from different degrees of vibration or displacement due to equipment operation, etc. The traditional rigid bus connection method cannot effectively absorb and buffer these external stresses. Long-term operation in such conditions can cause fatigue damage to the connection points, leading to increased contact resistance, overheating of the connection site, and even serious accidents such as short circuits and power outages, threatening the reliability and safety of the power supply system.

[0003] To solve the above problems, some improvement schemes have been proposed in the prior art. For example, by adding rubber pads, springs or other elastic elements between rigid connection components to provide certain buffering capacity. However, such schemes have inherent defects: first, the elastic elements are prone to plastic deformation or aging under long-term compression and vibration, resulting in a decline in buffering performance and the need for regular maintenance or replacement; second, the buffering stroke and direction are limited, and the adaptability to complex vibrations in multiple directions and large amplitudes is poor; third, the elastic elements themselves may affect the stability of the connection and the mechanical strength. SUMMARY

[0004] In view of the problem that the existing flexible connector between bus ducts is easily damaged by long-term vibration due to stress, the present application is proposed.

[0005] Therefore, one object of the present application is to provide a flexible connector between bus ducts, which aims to prevent the connector between bus ducts from being damaged by vibration.

[0006] To solve the above technical problems of being easily damaged by vibration, the present application provides the following technical scheme: a flexible connector between bus ducts, comprising connection plugs adapted to the end of the bus duct, including a plurality of plug bodies for connecting with the conductor end, and a containing space provided between two connection plugs; and a flexible connecting body provided in the containing space, both ends of the flexible connecting body being connected with the plug body.

[0007] As a preferred scheme of the flexible connector between bus ducts according to the present application, wherein: the straight-line distance between the two connection plugs is D, and the length of the flexible connecting body is L, where L>D.

[0008] As a preferred scheme of the flexible connector between bus ducts, the accommodating space is provided with a plurality of accommodating spaces, both ends of each accommodating space are provided with a plug body, and each accommodating space is provided with a flexible connecting body.

[0009] As a preferred scheme of the flexible connector between bus ducts, the flexible connecting body is a flexible cable, a conductor of the flexible cable is composed of a plurality of filaments, and an insulation layer and / or a sheath of the flexible connecting body are made of an elastomer material.

[0010] As a preferred scheme of the flexible connector between bus ducts, the plug body is provided with a conductor sheet on both sides of the top end, an elastic sheet is arranged outside the conductor sheet, the conductor sheet and the elastic sheet are arranged to be bent towards the center line of the plug body, and the top end of the conductor sheet and the elastic sheet is provided with a reverse bending guide part.

[0011] As a preferred scheme of the flexible connector between bus ducts, the top end of the plug body is provided with a conductive part corresponding to the bus duct, and the conductor sheet is connected with the conductive part.

[0012] As a preferred scheme of the flexible connector between bus ducts, the plug bodies are provided with an insulating spacer, the top end of the insulating spacer is provided with a limiting plug, and the limiting plug is connected with the bus duct in a plug-in manner.

[0013] Another object of the present application is to provide a bus duct with a special plug, which is suitable for the flexible connector between bus ducts, and comprises a bus plug arranged at the top end of the bus duct, the bus plug is provided with a plurality of conductor end heads, each conductor end head is connected with a plug body, and the conductor end heads are provided with a limiting spacer.

[0014] As a preferred scheme of the bus duct with a special plug, the limiting spacer comprises a spacer part and a limiting part, the spacer part is arranged between the conductor end heads, the limiting part is arranged in the spacer part and faces the limiting plug, and the limiting part is connected with the limiting plug in a plug-in manner.

[0015] As a preferred scheme of the bus duct with a special plug, the bus duct is provided with a bus cover plate, the bus cover plate exposes the bus plug part, the connecting plug is provided with an upper plug cover plate and a lower plug cover plate, and the plug cover plates are connected with the bus cover plate.

[0016] The beneficial effects of this invention are as follows: By setting a connector plug to electrically connect and mechanically fix the conductor end of the busbar trunking, and using a flexible connector to connect between the connector plugs, the flexible connector can absorb and buffer the relative vibration or displacement between the two busbar trunking sections through its own bending, stretching, or torsional deformation, thereby effectively reducing the stress transmitted to the connection interface, avoiding damage to the connection parts caused by stress concentration, while maintaining stable electrical connection and mechanical fixation, and improving the reliability and service life of the busbar trunking system in vibration environment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is an overall schematic diagram of the flexible connector between the busbars of the present invention.

[0019] Figure 2 This is a schematic diagram of the flexible connector between busbar slots of the present invention.

[0020] Figure 3 This is a schematic diagram of the connection plug of the flexible connector between the busbars of the present invention.

[0021] Figure 4 This is a top view schematic diagram of the flexible connector between busbars of the present invention.

[0022] Figure 5 for Figure 4 Enlarged view of point A.

[0023] Figure 6 This is a schematic diagram of the busbar groove with a special plug according to the present invention. Detailed Implementation

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0027] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0028] Example 1

[0029] Reference Figure 1 The first embodiment of the present invention provides a flexible connector between busbar trunking. This device includes a connector 200 adapted to the end of the busbar trunking M, which includes a plurality of connector bodies 201 for connecting to conductor ends 101, and an accommodating space K disposed between two of the connectors 200; and a flexible connector 300 disposed within the accommodating space K, with both ends of the flexible connector 300 connected to the connector bodies 201.

[0030] Two connectors 200 are provided, each connecting to one of the two busbar troughs M to be connected. Each connector body 201 of the connector 200 is electrically connected to one busbar trough M, and then connected to the corresponding connector body 201 of the connector 200 in the other busbar trough M via a flexible connector 300. The flexible connector 300 is composed of one or more stranded flexible cables, the cross-sectional area of ​​which is determined according to the rated current. The two ends of the flexible connector 300 are electrically and mechanically fixed to the corresponding connector body 201 by crimping or welding.

[0031] refer to Figure 2 The straight-line distance between the two connectors 200 is D, and the length of the flexible connector 300 is L, where L > D. There are several accommodating spaces K, and each accommodating space K has a connector body 201 at both ends and a flexible connector 300 in each accommodating space K.

[0032] The flexible connector 300 is a flexible cable, whose conductor is made of multiple strands of fine wire twisted together, and whose insulation layer and / or sheath are made of elastomeric material.

[0033] Specifically, since the busbar trunking M has multiple busbars, each of which needs to be connected, each connector 200 needs to be equipped with multiple connector bodies 201. Each connector body 201 is connected to a busbar for conduction. Therefore, multiple flexible connectors 300 are needed to connect each connector body 201 one by one. In order to maintain the isolation between different busbars, insulating components such as phase separators are needed for separation, that is, the accommodating space K is divided into multiple spaces, and each accommodating space K contains one flexible connector 300.

[0034] The flexible connector 300 must have a length L greater than the spacing D of the connector plug 200 to allow for deformation. If L is less than D, the connector plugs 200 at both ends cannot be properly connected. If L equals D, the flexible connector 300 will be taut and will not have enough room to deform and absorb vibration.

[0035] Preferably, LD≥D / 10 to prevent insufficient allowance for the flexible connector 300 to deform. Furthermore, LD≤D / 3 to prevent excessive allowance from leading to material waste and increasing the weight of the connector.

[0036] When the busbar system experiences vibration or relative displacement, the force is transmitted to the connector 200. At this time, the flexible connector 300, utilizing its inherent flexibility and bendability, undergoes elastic deformation, effectively absorbing and releasing energy. Compared to rigid connections or simple elastic gaskets, the flexible connector 300 provides a wider range and more degrees of freedom, such as displacement compensation capabilities for extension, bending, and torsion, significantly reducing the stress transmitted to the connection between the connector 200 and the busbar conductor. This fundamentally solves the problem of fatigue damage caused by stress concentration.

[0037] Example 2

[0038] Reference Figure 1 and Figure 4 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: an insulating phase-isolating block 204 is provided between each plug body 201, and a limiting plug 205 is provided at the top of the insulating phase-isolating block 204. The limiting plug 205 is plugged into the busbar groove M.

[0039] Each insulating phase-isolating block 204 divides the interior of the connector 200 into accommodating spaces K. Each accommodating space K has a connector body 201 at both ends, connected to the busbar trunking M, and a space in the middle for accommodating the flexible connector 300. When vibration or displacement occurs, the flexible connector 300, utilizing its inherent flexibility and bendability, can undergo elastic deformation, effectively absorbing and releasing energy. Compared to rigid connections or simple elastic gaskets, the flexible connection of the cable provides a wider range and more degrees of freedom for displacement compensation, significantly reducing the stress transmitted to the connection point between the connector 200 and the conductor end 101.

[0040] The remaining structure is the same as that in Example 1.

[0041] Example 3

[0042] Reference Figure 4 and Figure 5 This is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that: the top two sides of the plug body 201 are provided with conductor pieces 202 and elastic pieces 203 are provided on the outside of the conductor pieces 202. The conductor pieces 202 and elastic pieces 203 are bent towards the center line of the plug body 201. The top of the conductor pieces 202 and elastic pieces 203 are both provided with guide portions D1 that are bent in the opposite direction.

[0043] The plug body 201 has a conductive part 201a at its top corresponding to the busbar groove M. Conductor pieces 202 are provided on both sides of the conductive part 201a, and elastic pieces 203 are provided on the outer side of the conductor pieces 202. The conductor pieces 202 are fixedly connected to the conductive part 201a, and the tail of the elastic piece 203 is fixedly connected to the tail of the conductor piece 202. The conductor pieces 202 and elastic pieces 203 are bent towards the centerline of the plug body 201, and the tops of both conductor pieces 202 and elastic pieces 203 have a reverse-bent guide part D1.

[0044] The conductive part 201a of the plug body 201 is made of copper for conducting electricity. Conductor sheets 202 of the same material are provided on both sides. An elastic sheet 203 on the outer surface of the conductor sheet 202 can press the conductor sheet 202 inward. The material of the elastic sheet 203 can be manganese steel. Thus, when the connector 200 is connected to the busbar connector 100, each conductor sheet 202 is pressed tightly against both sides of the busbar groove M by the elastic sheet 203, maintaining close contact, thereby conducting electricity to the plug body 201. The plug body 201 then transmits the electricity to the other plug body 201 through the flexible connector 300, and then to the other busbar groove M through the conductor sheet 202 on the other side.

[0045] By setting the conductor piece 202 and the elastic piece 203 into a bent shape with an initial angle, and cooperating with the guide part D1 that bends in the opposite direction, when plugging in, the end of the busbar groove M first enters the guide part D1, pushing the conductor piece 202 and the elastic piece 203 to both sides, causing the conductor piece 202 and the elastic piece 203 to open. As the end of the busbar groove M gradually approaches the plug body 201, the elastic piece 203 can maintain the inward pressure on the conductor piece 202, thereby pressing the conductor piece 202 tightly against the end surface of the busbar groove M and increasing the frictional force, fixing the connector plug 200 and the busbar groove M to each other. The frictional force achieves the effect of fixing the connector plug 200 and the busbar groove M.

[0046] The remaining structure is the same as that in Example 2.

[0047] Example 4

[0048] Reference Figures 3-6 This is the fourth embodiment of the present invention. This embodiment differs from the above embodiments in that: this embodiment also provides a busbar trunking with a special plug, adapted to the flexible connector between the busbar trunkings, and further includes a busbar plug 100 disposed at the top of the busbar trunking M. The busbar plug 100 is provided with a plurality of conductor ends 101, each conductor end 101 being connected to a plug body 201, and a limiting separator 102 is provided between each conductor end 101; wherein, the conductor end 101 is adapted to the connecting plug 200.

[0049] Several conductor ends 101 extend from the end of the busbar trunking M. The conductor ends 101 are copper busbars used to conduct electricity. Limiting spacers 102 between each conductor end 101 maintain the gap between each conductor end 101, limit the position of the conductor ends 101, and maintain the spacing.

[0050] The limiting separator 102 includes a separating part 102a and a limiting part 102b. The separating part 102a is disposed between each conductor end 101, and the limiting part 102b is disposed in the middle of the separating part 102a facing the limiting plug 205. The limiting part 102b is inserted and engaged with the limiting plug 205.

[0051] The limiting separator 102 is made of insulating material. The separator 102a includes two vertical plates that abut against the sidewalls of adjacent conductor ends 101, and horizontal plates disposed at both ends of the vertical plates that fit against the sidewalls of the conductor ends 101. The separator 102a separates adjacent conductor ends 101 and keeps the positions of the conductor ends 101 relatively fixed. The size of the separator is the same as the distance between each plug body 201 in the connector 200, so that the conductor ends 101 can correspond to the plug bodies 201. The limiting part 102b is a protruding plate that limits the plug 205 facing the insulating phase block 204.

[0052] Insulating phase-isolating blocks 204 are provided between each plug body 201. A limiting plug 205 is provided at the top of each insulating phase-isolating block 204. The limiting plug 205 is inserted into and cooperates with the limiting separator 102. The insulating phase-isolating blocks 204 can separate each plug body 201, maintaining relative insulation between the parts. The limiting plug 205 and the insulating phase-isolating blocks 204 are made of the same material. The limiting plug 205 is U-shaped, and its opening is directly connected to the plate of the limiting part 102b. Since the busbar troughs M to be connected are usually fixed, as long as the total length of the insulating phase-isolating blocks 204 matches the distance between the busbar troughs M, the connection of the limiting plug 205 with the limiting part 102b will naturally restrict the overall movement of the connecting plug 200.

[0053] When the connector 200 is connected to the bus plug 100, each conductor piece 202 is pressed against both sides of the conductor end 101 by the elastic piece 203 to maintain close contact, thereby conducting electricity to the connector body 201. The connector body 201 then transmits the power to the connector body 201 on the other side through the flexible connector 300, and then to the bus groove M on the other side through the conductor piece 202 on the other side.

[0054] Example 5

[0055] refer to Figure 3 This is the fifth embodiment of the present invention. This embodiment differs from the previous embodiment in that: busbar trough M is further provided with busbar cover plates 103 on both the top and bottom. The busbar cover plates 103 expose the portion of the busbar plug 100. Connecting plug 200 is provided with plug cover plates 206 on both the top and bottom. An insulating phase-isolating block 204 is fixedly connected to one of the plug cover plates 206. After installation, the other plug cover plate 206 can completely cover the busbar plug 100 and the connecting plug 200, protecting them inside. Furthermore, the busbar cover plate 103 has a connection hole, and the plug cover plate 206 has the same connection hole, facilitating the use of bolts to connect and fix the plug cover plate 206 to the busbar trough M. The connection hole is an oblong hole, preventing the plug cover plate 206 from being completely fixed to the busbar trough M, thus allowing for slight displacement during vibration and avoiding complete fixation of the connecting plug 201.

[0056] During insertion, the conductor end 101 of the busbar M first enters the guide part D1, pushing the conductor piece 202 and the elastic piece 203 to both sides, causing the conductor piece 202 and the elastic piece 203 to open. As the conductor end 101 of the busbar M gradually approaches the plug body 201, the elastic piece 203 can maintain the inward pressure on the conductor piece 202, thereby pressing the conductor piece 202 tightly against the surface of the conductor end 101 and increasing the frictional force, thus fixing the connector 200 and the conductor end 101 to each other. The frictional force achieves the effect of fixing the connector 200 and the conductor end 101.

[0057] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise changed, and the nature or number or position of discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. Therefore, the invention is not limited to the particular embodiments but extends to a variety of modifications that still fall within the scope of the appended claims.

[0058] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0059] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A flexible connector between busbar trunking, characterized in that: include, A connector (200), adapted to the end of a busbar (M), includes a plurality of connector bodies (201) for connection to conductor ends (101), and a receiving space (K) disposed between two of the connectors (200); and, A flexible connector (300) is disposed within the accommodating space (K), and both ends of the flexible connector (300) are connected to the plug body (201).

2. The flexible connector between busbar trunking according to claim 1, characterized in that: The straight-line distance between the two connectors (200) is D, and the length of the flexible connector (300) is L, where L > D.

3. The flexible connector between busbar trunking according to claim 1 or 2, characterized in that: The accommodating space (K) is provided in a plurality of units, each of which has a plug body (201) at both ends and a flexible connector (300) inside each accommodating space (K).

4. The flexible connector between busbar trunking according to claim 3, characterized in that: The flexible connector (300) is a flexible cable, the conductor of which is composed of multiple strands of fine wire twisted together, and the insulation layer and / or sheath of the flexible connector (300) are made of elastomeric material.

5. The flexible connector between busbar trunking according to any one of claims 1, 2, and 4, characterized in that: The plug body (201) has conductor pieces (202) on both sides of its top end, and elastic pieces (203) are provided on the outer side of the conductor pieces (202). The conductor sheet (202) and the elastic sheet (203) are bent toward the centerline of the plug body (201), and the top of the conductor sheet (202) and the elastic sheet (203) are provided with a guide portion (D1) that is bent in the opposite direction.

6. The flexible connector between busbar trunking according to claim 5, characterized in that: The top of the plug body (201) is provided with a conductive part (201a) corresponding to the busbar groove (M), and the conductor piece (202) is connected to the conductive part (201a).

7. The flexible connector between busbar trunking according to any one of claims 1, 2, 4, and 6, characterized in that: An insulating phase-isolating block (204) is provided between each of the plug bodies (201), and a limiting plug (205) is provided at the top of the insulating phase-isolating block (204), which is connected to the busbar groove (M).

8. A busbar trunking with a special plug, adapted to a flexible connector between busbar trunking as described in any one of claims 1 to 7, characterized in that: It includes a bus plug (100) disposed at the top of the bus trunking (M), the bus plug (100) having a plurality of conductor ends (101), each conductor end (101) being connected to a plug body (201), and a limiting separator (102) being provided between each conductor end (101).

9. The busbar trunking with a special plug according to claim 8, characterized in that: The limiting separator (102) includes a separating part (102a) and a limiting part (102b). The separating part (102a) is disposed between each conductor end (101), and the limiting part (102b) is disposed in the middle of the separating part (102a) facing the limiting plug (205). The limiting part (102b) is inserted into the limiting plug (205).

10. The busbar trunking with a special plug according to claim 8 or 9, characterized in that: The busbar trunking (M) is also provided with busbar cover plates (103) on the top and bottom. The busbar cover plates (103) expose the part of the busbar plug (100). The connector plug (200) is provided with plug cover plates (206) on the top and bottom. The plug cover plates (206) are connected to the busbar cover plates (103).

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