A busbar connection device

Abstract

The present invention relates to the technical field of busbar connection, and specifically discloses a busbar connection device, including a plate group, a mounting plate, and bolts penetrating the plate group and the mounting plate, the plate group includes a plurality of arranged insulating plates, the side walls of adjacent insulating plates facing each other are respectively connected with conductive plates, the adjacent insulating plates are elastically connected, the mounting plate is slidably connected along the left and right directions with a clamping member 1 and a clamping member 2 for clamping a busbar duct, and the busbar connection device also includes a driving component that drives the clamping member 1 and the clamping member 2 to drive the two busbar ducts to move in a direction close to each other, so that the busbar row is inserted in a preset position between the insulating plates. The busbar connection device of the present invention not only ensures the electrical connection performance between the busbar ducts, but also has simple operation steps and a convenient and quick operation process during the entire connection process, thereby improving the connection efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of busbar connection, and in particular to a busbar connection device. Background Art

[0002] In the power transmission and transformation equipment of the electric power industry, current is generally transmitted to the electrical equipment through the busbar system. The busbar system is usually composed of several sections of busbar duct products and busbar connectors. The busbar connector electrically connects two adjacent sections of busbar duct products.

[0003] The Chinese patent with announcement number CN105914681A discloses a busbar connector, including a housing and a conductive bar. The housing is provided with a partition and several insulating plates. Nuts are fixedly connected to both ends of the lower side of the insulating plate. Metal side plates are fixedly connected to the upper side of the insulating plate. The insulating plate and the metal side plates both penetrate the partition. Bolts that cooperate with nuts are provided at both ends of the housing, and the bolts penetrate the housing, insulating plate, conductive bar and metal side plates in sequence. After the bolts are tightened, the conductive bar fits tightly with the metal side plates. The partition penetrates the top of the housing and is fixedly connected with a baffle. The top of the housing is equipped with an intake fan and an exhaust fan. The bolts in this technical solution penetrate the housing, conductive bar, insulating plate and metal side plates, and cooperate with nuts. After the bolts are tightened, the conductive bar fits tightly with the metal side plates, which optimizes the connection performance of the busbar.

[0004] However, when the above technical solution is actually connected, it is first necessary to adjust the two conductive bars on the left and right sides to be located on the same straight line, and then adjust the spacing between the several insulating plates, and insert the shell and the insulating plate downward onto the conductive bar. Since the position of the insulating plate in the shell is uncertain, and the side of the insulating plate is also fixedly connected with a nut, it is difficult to align each insulating plate with the gap between the conductive bars at one time and insert it smoothly when inserting the insulating plate downward onto the conductive bar. It is necessary to constantly adjust the position of each insulating plate, and after insertion, it is necessary to adjust the position of the conductive bar so that the sockets for the bolts to be inserted on the conductive bar correspond to the screw holes of the nuts on each insulating plate, so that the bolts can smoothly pass through the sockets on the conductive bar and be threadedly connected with the nuts on each insulating plate. The conductive bar is usually encapsulated in an insulating shell, which is large in size and inconvenient for precise adjustment within a small range. Therefore, the connection and installation process of the above technical solution is very cumbersome to operate, which greatly affects the connection efficiency of the bus duct.

[0005] Therefore, the art needs a busbar connecting device to solve the above problems. Summary of the invention

[0006] The present invention provides a busbar connecting device, aiming to solve the problem in the related art that the connection process of the busbar connecting device is complicated to operate, resulting in low connection efficiency.

[0007] A busbar connection device of the present invention comprises a plate group, mounting plates arranged on both sides of the plate group, and bolts penetrating the plate group and the mounting plates, the plate group comprises a plurality of arranged insulating plates, the arrangement direction of the insulating plates is defined as the front-to-back direction, the side walls of adjacent insulating plates facing each other are respectively connected with conductive plates, the adjacent insulating plates are elastically connected, the mounting plates are slidably connected along the left-right direction with a first clamping member and a second clamping member for clamping a busbar duct, the busbar connection device further comprises a driving assembly for driving the first clamping member and the second clamping member to drive the two busbar ducts to move in a direction close to each other, so that the busbar is inserted in a preset position between the insulating plates;

[0008] The bolt includes a screw rod and two nuts. Both ends of the screw rod are provided with smooth sections. The two nuts are slidably arranged on the smooth sections along the front-rear direction. The two nuts are located on the sides of the two mounting plates away from each other. The first clamping piece and the second clamping piece are symmetrical about the center of the nut. The driving assembly includes a gear and teeth. The gear is fixedly connected to the nut. The teeth are evenly arranged on the sides of the first clamping piece and the second clamping piece facing the nut along the left-right direction, and the gear is meshed with the teeth.

[0009] A push block is fixedly connected to one side of the clamping piece 1 and the clamping piece 2 facing the nut, and an inclined wedge surface is provided on the side of the push block facing the corresponding mounting plate. When the push block moves until its inclined wedge surface contacts the gear, the inclined wedge surface pushes the gear to move toward the insulating plate. When the gear is disengaged from the teeth, the busbar is inserted in a preset position between the insulating plates, and the nut contacts the threads on the screw.

[0010] Beneficial effect: The present invention sets a first clamp and a second clamp. When connecting the bus ducts, the first clamp is clamped on one of the bus ducts, and the second clamp is clamped on the other bus duct, so that the first clamp and the second clamp form a preliminary positioning of the positions and movement trajectories of the two bus ducts, and then the first clamp and the second clamp are driven to move by the driving component, so as to drive the two bus ducts to move synchronously in the direction of approaching each other. Due to the elastic connection between adjacent insulating plates, a gap is reserved between adjacent insulating plates, so that the two busbars can be smoothly inserted between the insulating plates during the synchronous movement of the two bus ducts. After the busbars are inserted into place, the bolts are tightened to make the conductive plates on the insulating plates in close contact with the busbars, so as to ensure the electrical connection performance between the bus ducts. At the same time, in the whole connection process, the two busbars can be aligned, inserted and tightened only by tightening the bolts. The operation steps are very simple, the operation process is convenient and fast, and the connection efficiency is improved.

[0011] Preferably, both ends of the screw are fixedly connected with hexagonal nuts, and a spring 1 is arranged between the nut and the corresponding hexagonal nut. When the spring 1 is in a natural state, the gear on the nut meshes with the corresponding teeth.

[0012] Preferably, a telescopic sleeve rod is fixedly connected between the gears of the two nuts, and the telescopic sleeve rod is sleeved on the outer periphery of the screw rod. The telescopic sleeve rod includes sleeve rod one and sleeve rod two, and the sleeve rod one is sleeved on the outer periphery of sleeve rod two, and a sliding groove is opened on the outer side of sleeve rod two along its axial direction, and a sliding block slidingly matched with the sliding groove is fixedly connected to the inner side of sleeve rod one, and the thread rotation direction corresponding to the two nuts on the screw rod is opposite.

[0013] Beneficial effect: By setting the telescopic sleeve rod, during installation, only one of the nuts needs to be screwed to achieve synchronous rotation of the two nuts, which further simplifies the operation and improves the connection efficiency.

[0014] Preferably, the clamping member 1 includes a sliding rod 1 slidably connected to the mounting plate along the left-right direction, and a clamping joint 1 extends from one end of the sliding rod 1 away from the mounting plate, and the clamping joints 1 of the sliding rods 1 on the two mounting plates extend in a direction close to each other.

[0015] Preferably, the second clamping member includes a second slide rod slidably connected to the mounting plate along the left-right direction, and a second clamping joint extends from one end of the slide rod away from the mounting plate, and the second clamping joints of the slide rods on the two mounting plates extend in a direction close to each other.

[0016] Preferably, the two mounting plates are connected to connecting plates on one side facing each other, and connecting parts are respectively extended from the left and right ends of the two connecting plates, and connecting holes for connecting to the bus duct are provided on the connecting parts.

[0017] Beneficial effect: By connecting the connection plate to the bus duct, the stability and reliability of the connection between the bus connection device and the bus duct are improved.

[0018] Preferably, chamfered surfaces are provided near the edges of the front and rear side surfaces of the insulation plate.

[0019] Preferably, the busbar connection device further comprises an upper cover plate and a lower cover plate, and the upper cover plate and the lower cover plate are respectively provided with mounting holes for connection with the busbar duct.

[0020] The beneficial effects of the present invention are as follows: the present invention clamps the first clamping piece on one of the bus ducts and clamps the second clamping piece on the other bus duct, so that the first clamping piece and the second clamping piece form a preliminary positioning of the positions and movement trajectories of the two bus ducts, and then drives the first clamping piece and the second clamping piece to move through the driving assembly, driving the two bus ducts to move synchronously in the direction of approaching each other, and due to the elastic connection between adjacent insulating plates, a gap is reserved between adjacent insulating plates, so that in the process of synchronous movement of the two bus ducts, the two busbars can be smoothly inserted between the insulating plates, and after the busbars are inserted into place, the bolts are tightened to make the conductive plates on the insulating plates in close contact with the busbars, thereby ensuring the electrical connection performance between the bus ducts. At the same time, in the entire connection process, the two busbars can be aligned, inserted and tightened only by tightening the bolts, the operation steps are simple, the operation process is convenient and fast, and the connection efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a busbar connecting device of the present invention in a use state.

[0022] Figure 2 It is a top view of a busbar connecting device of the present invention.

[0023] Figure 3 The invention discloses a schematic structural diagram of an insulating plate of a busbar connecting device.

[0024] Figure 4 The structure of a busbar connection device of the present invention is schematically shown in FIG. Figure 1 .

[0025] Figure 5 The structure of a busbar connection device of the present invention is schematically shown in FIG. Figure 2 .

[0026] Figure 6 The invention discloses a schematic diagram of assembling bolts and telescopic sleeve rods of a busbar connecting device.

[0027] Figure 7 It is a cross-sectional view of a busbar connecting device of the present invention in a use state.

[0028] Reference numerals:

[0029] 1. Mounting plate; 11. Connecting plate; 12. Connecting part; 13. Connecting hole; 2. Insulating plate; 21. Spring 2; 22. Chamfered surface; 3. Bus duct; 31. Busbar; 4. Snap-on part 1; 41. Slide rod 1; 42. Snap-on joint 1; 5. Snap-on part 2; 51. Slide rod 2; 52. Snap-on joint 2; 6. Screw; 60. Smooth section; 61. Nut; 62. Hexagonal nut; 63. Spring 1; 7. Gear; 71. Teeth; 72. Telescopic sleeve rod; 721. Sleeve rod 1; 722. Sleeve rod 2; 723. Slide groove; 8. Push block; 81. Wedge surface; 9. Upper cover plate; 91. Mounting hole; 10. Lower cover plate. DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0031] like Figures 1 to 7 As shown, the arrangement direction of the insulating plates 2 is defined as the front-to-back direction. A busbar connection device of the present invention comprises a plate group, mounting plates 1 arranged on both sides of the plate group, and bolts penetrating the plate group and the mounting plates 1. The plate group comprises five insulating plates 2 arranged in the front-to-back direction, and the side walls of adjacent insulating plates 2 facing each other are respectively connected with conductive plates (not shown in the figure), and the adjacent insulating plates 2 are elastically connected by springs 21 to keep the spacing between adjacent insulating plates 2 the same when the springs 21 are not subjected to external forces. Chamfered surfaces 22 are provided near the edges of the front and rear sides of the insulating plates 2 to increase the spacing between the edges of adjacent insulating plates 2. When the busbar 31 is inserted between the insulating plates 2, the chamfered surfaces 22 guide the busbar 31, which is conducive to the smooth insertion of the busbar 31 between the insulating plates 2.

[0032] The mounting plate 1 is slidably connected with a clamping member 1 4 and a clamping member 2 5 for clamping the bus duct 3 in the left-right direction. The bus connection device also includes a driving assembly for driving the clamping member 1 4 and the clamping member 2 5 to drive the two bus ducts 3 to move toward each other.

[0033] When connecting two bus ducts 3, the busbar connecting device of the present invention is placed between the two bus ducts 3, and then the clamping piece 1 4 is clamped on one of the bus ducts 3, and the clamping piece 2 5 is clamped on the other bus duct 3. The clamping piece 1 4 and the clamping piece 2 5 are driven by the driving component to move, so as to drive the two bus ducts 3 to move towards each other. During the movement, the busbars 31 of the two bus ducts 3 enter between the insulating plates 2 under the guidance of the chamfered surface 22 of the insulating plate 2. After the busbars 31 are inserted to the preset position, the driving is stopped, and then the bolts are tightened to make the conductive plate on the insulating plate 2 in close contact with the busbars 31, so as to ensure the electrical connection performance between the bus ducts 3. At the same time, the entire connection process is convenient and fast, thereby improving the connection efficiency.

[0034] like Figure 2 , Figure 4 and Figure 5 As shown, the clamping member 1 4 includes a slide bar 1 41 slidably connected to the mounting plate 1 along the left-right direction, and a clamping joint 1 42 extends from one end of the slide bar 41 away from the mounting plate 1, and the clamping joints 1 42 of the slide bars 41 on the two mounting plates 1 extend toward each other. The clamping member 2 5 includes a slide bar 2 51 slidably connected to the mounting plate 1 along the left-right direction, and a clamping joint 2 52 extends from one end of the slide bar 2 51 away from the mounting plate 1, and the clamping joints 2 52 of the slide bars 2 51 on the two mounting plates 1 extend toward each other.

[0035] The bolt includes a screw rod 6 and two nuts 61. The two ends of the screw rod 6 are provided with smooth sections 60. The two nuts 61 are slidably provided on the smooth sections 60 along the front-back direction. The two nuts 61 are located on the side of the two mounting plates 1 that are away from each other. The ends of the two smooth sections 60 that are away from each other are respectively fixedly connected with hexagonal nuts 62. A spring 1 63 is provided between the nuts 61 and the corresponding hexagonal nuts 62. The slide bar 1 41 is located above the slide bar 2 51, and the slide bar 1 41 and the slide bar 2 51 are symmetrical about the center of the corresponding nut 61. The driving assembly includes a gear 7 and teeth 71. The gear 7 is fixedly connected to the nut 61. The teeth 71 are evenly spaced along the left-right direction and connected to the slide bar 1 41 and the slide bar 2 51 on the side facing the nut 61. When the spring 1 63 is in a natural state, the gear 7 on the nut 61 is meshed with the corresponding teeth 71.

[0036] After the clamping connector 1 42 and the clamping connector 2 52 are clamped on the corresponding bus duct 3, the nut 61 is screwed, and the gear 7 on the nut 61 drives the slide bar 1 41 and the slide bar 2 51 to move through the corresponding teeth 71, thereby driving the two bus ducts 3 to move towards each other. Moreover, since the nut 61 is on the smooth section 60 of the screw rod 6 at this time, the nut 61 will not squeeze the mounting plate 1 and the insulating plate 2 to move closer to the middle, thereby ensuring that the gap between the insulating plates 2 is in the maximum state when the busbar 31 is inserted, which is conducive to the smooth insertion of the busbar 31 between the insulating plates 2, and there is no need to manually adjust the position of the insulating plates 2, thereby reducing the operating steps and improving the connection efficiency.

[0037] like Figure 4 , Figure 5 and Figure 7 As shown, the sliding rod 1 41 and the sliding rod 2 51 are respectively fixedly connected with a push block 8 on one side facing the nut 61, and the push block 8 is provided with an inclined wedge surface 81 on one side facing the corresponding mounting plate 1. In the process of screwing the nut 61 to drive the sliding rod 1 41 and the sliding rod 2 51 to move, when the push block 8 contacts the gear 7, the inclined wedge surface 81 of the push block 8 pushes the gear 7 to move in the direction close to the insulating plate 2, until the gear 7 is separated from the last tooth 71, the nut 61 contacts the thread on the screw 6, the busbar 31 is inserted at the preset position between the insulating plates 2, the bus duct 3 and the busbar connection device are installed in place, and the nut 61 is continued to be screwed, and the nut 61 moves along the thread on the screw 6 in the direction close to the insulating plate 2, so that the mounting plate 1 squeezes the insulating plate 2 to move closer to the middle, and the conductive plate on the insulating plate 2 is tightly connected with the busbar 31.

[0038] like Figure 6 As shown, a telescopic sleeve rod 72 is fixedly connected between the gears 7 of the two nuts 61, and the telescopic sleeve rod 72 is sleeved on the outer periphery of the screw rod 6. The telescopic sleeve rod 72 includes a sleeve rod 1 721 and a sleeve rod 2 722, and the sleeve rod 1 721 is sleeved on the outer periphery of the sleeve rod 2 722, and the outer side of the sleeve rod 2 722 is provided with a slide groove 723 along its axial direction, and the inner side of the sleeve rod 1 721 is fixedly connected with a slider (not shown in the figure) that slides with the slide groove 723. The threads on the screw rod 6 corresponding to the two nuts 61 have opposite rotation directions. By setting the telescopic sleeve rod 72, during installation, only one of the nuts 61 needs to be screwed to achieve the synchronous rotation of the two nuts 61, which further simplifies the operation and improves the connection efficiency.

[0039] like Figure 1 , Figure 4 and Figure 7As shown, in order to improve the stability and reliability of the connection between the busbar connection device and the busbar duct 3, in this embodiment, the two mounting plates 1 are respectively fixedly connected with a connecting plate 11 on one side facing each other, and the left and right ends of the two connecting plates 11 are respectively extended with a connecting portion 12, and the connecting portion 12 is provided with a connecting hole 13 for connecting to the busbar duct 3. The busbar connection device also includes an upper cover plate 9 and a lower cover plate 10, and the upper cover plate 9 and the lower cover plate 10 are respectively provided with a mounting hole 91 for connecting to the busbar duct 3.

[0040] After the nut 61 is screwed into place, the connecting plate 11 is connected to the bus duct 3 by the cooperation of the screws and the connecting holes 13 , and the upper cover plate 9 and the lower cover plate 10 are connected to the bus duct 3 by the cooperation of the screws and the mounting holes 91 .

[0041] It can be understood that in other embodiments, the driving assembly can also be configured to include a connecting rod one and two connecting rods two, the connecting rod one is rotatably connected to the screw rod 6, and the center of the connecting rod one is located on the central axis of the screw rod 6, the two connecting rods two are respectively hinged at the two ends of the connecting rod one, and one end of one of the connecting rods two away from the connecting rod one is hinged to the clamping part 1 4, and the other end of the connecting rod two away from the connecting rod one is hinged to the clamping part 2 5, by rotating the connecting rod one to drive the connecting rod two to move, the connecting rod two drives the clamping part 1 4 and the clamping part 2 5 to move, and the clamping part 1 4 and the clamping part 2 5 drive the two bus ducts 3 to move in the direction of approaching each other.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0043] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0044] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A busbar connection device, comprising a plate group, mounting plates (1) arranged on both sides of the plate group, and bolts penetrating the plate group and the mounting plates (1), the plate group comprising a plurality of insulating plates (2) arranged in an arranged manner, the arrangement direction of the insulating plates (2) being defined as a front-to-back direction, and side walls of adjacent insulating plates (2) facing each other being respectively connected with conductive plates, characterized in that: Adjacent insulating plates (2) are elastically connected, the mounting plate (1) is slidably connected in the left-right direction with a first clamping member (4) and a second clamping member (5) for clamping the bus duct (3), and the bus connection device further comprises a driving component for driving the first clamping member (4) and the second clamping member (5) to drive the two bus ducts (3) to move in a direction close to each other, so that the busbar (31) is inserted into a preset position between the insulating plates (2); The bolt comprises a screw rod (6) and two nuts (61), both ends of the screw rod (6) are provided with smooth sections (60), the two nuts (61) are slidably arranged on the smooth sections (60) in the front-rear direction, the two nuts (61) are located on the sides of the two mounting plates (1) facing away from each other, the first clamping piece (4) and the second clamping piece (5) are symmetrical about the center of the nuts (61), the driving assembly comprises a gear (7) and teeth (71), the gear (7) is fixedly connected to the nuts (61), the teeth (71) are evenly arranged on the sides of the first clamping piece (4) and the second clamping piece (5) facing the nuts (61) in the left-right direction, and the gear (7) is meshed with the teeth (71); A push block (8) is fixedly connected to one side of the first clamping member (4) and the second clamping member (5) facing the nut (61), and a side of the push block (8) facing the corresponding mounting plate (1) is provided with an inclined wedge surface (81). When the push block (8) moves until its inclined wedge surface (81) contacts the gear (7), the inclined wedge surface (81) pushes the gear (7) toward the insulating plate (2). When the gear (7) is disengaged from the teeth (71), the busbar (31) is inserted into a preset position between the insulating plates (2), and the nut (61) contacts the threads on the screw rod (6).

2. The busbar connection device according to claim 1, characterized in that: Both ends of the screw rod (6) are fixedly connected with hexagonal nuts (62), and a spring (63) is arranged between the nut (61) and the corresponding hexagonal nut (62). When the spring (63) is in a natural state, the gear (7) on the nut (61) meshes with the corresponding tooth (71).

3. The busbar connection device according to claim 2, characterized in that: A telescopic sleeve rod (72) is fixedly connected between the gears (7) of the two nuts (61). The telescopic sleeve rod (72) is sleeved on the outer circumference of the screw rod (6). The telescopic sleeve rod (72) comprises a sleeve rod 1 (721) and a sleeve rod 2 (722). The sleeve rod 1 (721) is sleeved on the outer circumference of the sleeve rod 2 (722), and a slide groove (723) is provided on the outer side of the sleeve rod 2 (722) along its axial direction. A slider slidably matched with the slide groove (723) is fixedly connected to the inner side of the sleeve rod 1 (721). The screw rod (6) has a thread rotation direction opposite to that of the two nuts (61).

4. The busbar connection device according to claim 1, characterized in that: The clamping member 1 (4) comprises a sliding rod 1 (41) slidably connected to the mounting plate (1) along the left-right direction, a clamping joint 1 (42) extending from one end of the sliding rod 1 (41) away from the mounting plate (1), and the clamping joints 1 (42) of the sliding rods 1 (41) on the two mounting plates (1) extend in a direction approaching each other.

5. The busbar connection device according to claim 4, characterized in that: The second clamping member (5) comprises a second slide bar (51) slidably connected to the mounting plate (1) in the left-right direction, and a second clamping joint (52) extends from one end of the second slide bar (51) away from the mounting plate (1), and the second clamping joints (52) of the second slide bars (51) on the two mounting plates (1) extend in a direction approaching each other.

6. The busbar connection device according to claim 1, characterized in that: The two mounting plates (1) are connected to connecting plates (11) on one side facing each other, and connecting parts (12) are respectively extended from the left and right ends of the two connecting plates (11), and connecting holes (13) for connecting to the bus duct (3) are provided on the connecting parts (12).

7. The busbar connection device according to claim 1, characterized in that: Chamfered surfaces (22) are provided on the front and rear side surfaces of the insulation plate (2) near the edges.

8. The busbar connection device according to claim 1, characterized in that: The busbar connection device also includes an upper cover plate (9) and a lower cover plate (10), and the upper cover plate (9) and the lower cover plate (10) are respectively provided with mounting holes (91) for connection with the busbar duct (3).

Images