A plug-in parallel busbar connection device with limit function

Abstract

The utility model provides a plug-in parallel busbar connection device with a limiting function, which is used to solve the technical problem that at least two operators are required to cooperate when assembling the busbar of the equipment to be connected using the existing parallel busbar connection device, and the front and back of the parallel busbar connection device need to cooperate to complete the fastening. The parallel busbar connection device of the utility model includes a parallel busbar, a limiting clamp and multiple groups of fasteners; the limiting clamp includes a horizontal plate and a vertical plate vertically connected to one end of the horizontal plate; the parallel busbar and the vertical plate are arranged parallel and opposite to each other in the vertical direction, and one end of the parallel busbar is fixedly connected to the other end of the horizontal plate, so as to form a limiting groove in the space between the parallel busbar, the horizontal plate and the vertical plate; multiple groups of the fasteners are used to fix the two busbars of the equipment to be connected side by side in the limiting groove to realize the parallel connection of the two busbars of the equipment to be connected.

Description

Technical Field

[0001] The utility model relates to a parallel busbar connecting device, in particular to an insertion type parallel busbar connecting device with a limiting function. Background Art

[0002] In the application of power electronic equipment, in order to increase the overall power of the equipment, it is necessary to connect multiple high-power equipment in parallel so that the power busbars in multiple equipment can be electrically connected. However, since the overall size of the equipment is too large after parallel connection, the entire equipment needs to be disassembled and connected in parallel before leaving the factory or when transporting to the destination for whole-machine testing.

[0003] like Figure 1 , Figure 2 The figure shows a schematic diagram of the structure after the existing parallel busbar connection device is assembled with two busbars 03 of the equipment to be connected. The existing parallel busbar connection device includes a parallel busbar 01 and multiple sets of fasteners 02, and multiple first through holes 011 are respectively opened on the left and right sides of the parallel busbar 01. The two busbars 03 of the equipment to be connected are respectively arranged corresponding to the left and right sides of the parallel busbar 01, and second through holes 031 are opened at the positions corresponding to the first through holes 011. The bolts in the fasteners 02 pass through the second through holes 031 and the first through holes 011 in sequence and are threadedly connected with the nuts in the fasteners 02 to achieve the parallel connection of the two busbars of the equipment to be connected. However, when the existing parallel busbar connection device is assembled with the busbar 03 of the equipment to be connected, at least two operators are required to cooperate. One operator lifts the parallel busbar connection device so that the first through holes 011 on it are aligned with the second through holes 031 on the busbar 03 of the equipment to be connected, and the other operator uses bolts to connect and fasten. In addition, since the bolt needs to pass through the second through hole 031 and the first through hole 011 to be threadedly connected with the nut, the front and back surfaces of the parallel busbar connection device need to cooperate when tightening. Utility Model Content

[0004] The utility model aims to solve the technical problem that at least two operators are required to cooperate when assembling the busbar of the connected equipment using the existing parallel busbar connection device, and the front and rear ends of the parallel busbar connection device need to cooperate to complete the tightening, and to provide a plug-in parallel busbar connection device with a limit function.

[0005] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0006] A plug-in parallel busbar connection device with a limit function, used to realize the parallel connection of two busbars of devices to be connected; the device is special in that it includes a parallel busbar, a limit card and multiple sets of fasteners;

[0007] The limit clamp comprises a horizontal plate and a vertical plate whose upper end is vertically connected to one end of the horizontal plate;

[0008] The parallel busbar and the vertical plate are arranged parallel to each other in the vertical direction, and the upper end of the parallel busbar is fixedly connected to the other end of the horizontal plate, so as to form a limit groove in the space between the parallel busbar, the horizontal plate and the vertical plate; the width of the limit groove is adapted to the width of the busbar of the device to be connected, so as to insert the connection ends of the busbars of the two devices to be connected into the limit grooves respectively and correspond to the connection positions on the left and right sides of the parallel busbar respectively;

[0009] The plurality of groups of fasteners are used to fix the connection ends of the busbars of the two devices to be connected to the connection positions corresponding to the parallel busbars respectively.

[0010] Furthermore, a plurality of first through holes are respectively provided at the connection positions on the left and right sides of the parallel busbar;

[0011] Second through holes are respectively provided at positions on the vertical plates corresponding to the first through holes;

[0012] The connection ends of the two busbars of the devices to be connected are respectively provided with a plurality of corresponding third through holes;

[0013] The fasteners include bolts and nuts;

[0014] One end of the bolt passes through the corresponding first through hole, the third through hole and the second through hole in sequence and is threadedly connected to the nut.

[0015] Furthermore, the nut is fixedly arranged at an end port of the second through hole away from the parallel busbar.

[0016] Further, the vertical plate includes a first vertical plate vertically connected to a left end of the horizontal plate and a second vertical plate vertically connected to a right end of the horizontal plate;

[0017] A gap is provided between the first vertical plate and the second vertical plate, the space between the parallel busbar, the horizontal plate and the first vertical plate forms a first limiting groove, and the space between the parallel busbar, the horizontal plate and the second vertical plate forms a second limiting groove;

[0018] The plurality of second through holes are arranged on the first vertical plate and the second vertical plate, and the connection ends of the two busbars of the devices to be connected are respectively inserted into the first limiting groove and the second limiting groove.

[0019] Further, it includes one or two fastening screws;

[0020] The other end of the horizontal plate is vertically connected downward with a flap, and the flap is located on the outside of the parallel busbar;

[0021] The flap is provided with one or two fourth through holes;

[0022] A threaded hole is provided on the parallel busbar at a position corresponding to the fourth through hole;

[0023] The fastening screw passes through the fourth through hole and is threadedly connected with the corresponding threaded hole, thereby fixing the upper end of the parallel busbar to the other end of the horizontal plate.

[0024] Furthermore, the lower edges of the first vertical plate and the second vertical plate are provided with folded edges facing outwards.

[0025] Furthermore, the number of the first through holes on the left side and the right side of the parallel busbar is four.

[0026] Compared with the prior art, the utility model has the following beneficial effects:

[0027] 1. The utility model provides a plug-in parallel busbar connection device with a limit function, which has a simple structure and is easy to install. A limit card is arranged on the parallel busbar, so that a limit groove is formed between the horizontal plate, the vertical plate and the parallel busbar of the limit card, which is used to be sleeved on the outside of the busbars of two devices to be connected. The two busbars of the devices to be connected lift the parallel busbar connection device through the limit groove. Even with only one operator, the parallel connection of the two busbars of the devices to be connected can be completed quickly, which effectively improves the work efficiency.

[0028] 2. The utility model provides an insertable parallel busbar connection device with a limit function, in which a nut is fixedly arranged at an end of the second through hole away from the parallel busbar, so that when the bolt passes through the corresponding first through hole, the third through hole and the second through hole and is connected with the nut, the fastener can be disassembled and assembled only by operating on the surface where the bolt is located, which is convenient for connecting the parallel busbar in the narrow operating window of the power equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure after the existing parallel busbar is assembled with the busbars of two devices to be connected;

[0030] Figure 2 for Figure 1 Exploded diagram of

[0031] Figure 1 , Figure 2 The reference numerals in the drawings are:

[0032] 01-parallel busbar, 011-first through hole; 02-fastener; 03-busbar of the device to be connected, 031-second through hole 031.

[0033] Figure 3 It is a structural schematic diagram of an embodiment of a plug-in parallel busbar connection device with a limit function of the utility model;

[0034] Figure 4 for Figure 3 The rear diagram of

[0035] Figure 5 This is an exploded view of an embodiment of a plug-in parallel busbar connection device with a limit function of the utility model; (fasteners are not shown)

[0036] Figure 6 It is a structural schematic diagram of an embodiment of a plug-in parallel busbar connection device with a limiting function of the utility model connected to the busbars of two devices to be connected and ready for installation;

[0037] Figure 7 This is a schematic structural diagram of an embodiment of a plug-in parallel busbar connection device with a limiting function according to the utility model, which is mounted on two busbars of devices to be connected and is to be fixed;

[0038] Figure 8 This is a structural schematic diagram of using a plug-in parallel busbar connection device with a limit function of the utility model to respectively correspond to the busbars of the equipment to be connected for parallel connection;

[0039] Fig. 9 The present invention is a schematic structural diagram of using a plug-in parallel busbar connection device with a limit function of the utility model to realize power connection between two power equipments.

[0040] Figure 3-Figure 9 The reference numerals in the figures are as follows:

[0041] 1-parallel busbar, 11-first through hole, 12-threaded hole; 2-limiting clamp, 21-horizontal plate, 22-vertical plate, 221-first vertical plate, 222-second vertical plate, 223-second through hole, 224-folded edge, 23-flap plate, 231-fourth through hole; 3-busbar of equipment to be connected, 31-third through hole; 4-fastening screw; 5-bolt; 6-nut; 7-first power equipment; 8-second power equipment. DETAILED DESCRIPTION

[0042] In order to make the advantages and features of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] like Figure 3-Figure 5 As shown, a plug-in parallel busbar connection device with a limiting function is used to realize the parallel connection of two busbars 3 of the devices to be connected, which includes a parallel busbar 1, a limiting clamp 2, eight sets of fasteners and two fastening screws 4.

[0044] The limit clamp 2 includes a horizontal plate 21 and a vertical plate 22 whose upper end is vertically connected to one end of the horizontal plate 21. The vertical plate 22 includes a first vertical plate 221 vertically connected to one end of the left side of the horizontal plate 21 and a second vertical plate 222 vertically connected to one end of the right side of the horizontal plate 21. A gap is provided between the first vertical plate 221 and the second vertical plate 222 to reduce weight and facilitate heat dissipation.

[0045] The parallel busbar 1 is arranged parallel to the first vertical plate 221 and the second vertical plate 222 in the vertical direction, and the upper end of the parallel busbar 1 is fixedly connected to the other end of the horizontal plate 21, so that the space between the parallel busbar 1, the horizontal plate 21 and the first vertical plate 221 forms a first limiting groove, and the space between the parallel busbar 1, the horizontal plate 21 and the second vertical plate 222 forms a second limiting groove. The widths of the first limiting groove and the second limiting groove are adapted to the width of the busbar of the device to be connected, such as Figure 6 As shown, it is used to insert two busbars 3 of the devices to be connected into the first limiting groove and the second limiting groove respectively.

[0046] In this embodiment, the other end of the horizontal plate 21 is vertically connected downward with a flap 23, which is located on the outside of the parallel busbar 1; two fourth through holes 231 are provided on the flap 23; threaded holes 12 are provided on the parallel busbar 1 at positions corresponding to the fourth through holes 231; the fastening screws 4 pass through the fourth through holes 231 and are threadedly connected to the corresponding threaded holes 12, thereby fixing the upper end of the parallel busbar 1 to the other end of the horizontal plate 21. In other embodiments of the utility model, the other end of the horizontal plate 21 can also be fixedly connected to the upper end of the parallel busbar 1 in other forms.

[0047] Four first through holes 11 are respectively provided at the connection positions on the left and right sides of the parallel busbar 1, and second through holes 223 are respectively provided at the positions corresponding to the first through holes 11 on the first vertical plate 221 and the second vertical plate 222; the connection end of the busbar 3 of the device to be connected located in the first limiting groove is provided with four third through holes 31 corresponding to the four first through holes 11 on the left side of the parallel busbar 1, and the connection end of the busbar 3 of the device to be connected located in the second limiting groove is provided with four third through holes 31 corresponding to the four first through holes 11 on the right side of the parallel busbar 1.

[0048] Each set of fasteners includes a bolt 5, a nut 6, a spring washer and a flat washer. The spring washer and the flat washer are sleeved on one end of the bolt 5. Figure 7 As shown, one end of the assembled bolt 5 passes through the corresponding first through hole 11, the third through hole 31 and the second through hole 223 in sequence and is threadedly connected with the nut 6 to achieve the parallel connection of the two busbars 3 of the equipment to be connected. Preferably, in this embodiment, the nut 6 is welded to the end port of the second through hole 223 away from the parallel busbar 1, which can quickly complete the connection and tightening, and prevent the nut 6 from falling into the equipment.

[0049] Preferably, the lower edges of the first vertical plate 221 and the second vertical plate 222 are provided with folded edges 224 outwardly, so that the parallel busbar connection device can be quickly and smoothly mounted on the outside of the busbars 3 of the two devices to be connected.

[0050] Typically, each power device has three busbars 3 to be connected, corresponding to the A\B\C phases of the AC power supply. Figure 8 As shown, three parallel busbar connection devices are required between the first power equipment 7 and the second power equipment 8 to respectively connect the corresponding busbars 3 of the devices to be connected in parallel, so as to complete the power connection between the first power equipment 7 and the second power equipment 8.

[0051] The schematic diagram of completing the power connection between the first power equipment 7 and the second power equipment 8 through three parallel busbar connection devices is as follows: Fig. 9 As shown. When two power equipment are connected, there will be a vertical rack at the joint between the two cabinets, and the vertical cabinet will greatly restrict the operating space. The utility model only requires the operator to insert the three parallel busbar connection devices into the corresponding busbars 3 of the equipment to be connected inside the two power equipment through the equipment operation window, and then tighten them to achieve the equipment busbar connection.

[0052] Specifically, during installation, the parallel busbar connection device is sleeved on the outside of the two busbars 3 of the equipment to be connected. At this time, the parallel busbar connection device is supported by the two busbars 3 of the equipment to be connected on both sides. The operator uses a soft tool such as a rubber hammer to tap and fine-tune the left and right positions of the parallel busbar connection device so that the first through hole 11 and the second through hole 223 on it are aligned with the second through hole 31 on the busbar 3 of the equipment to be connected. After the holes are aligned, the operator sleeves the spring washer and the flat washer on the bolt 5, and makes one end of the bolt 5 pass through the first through hole 11, the third through hole 31 and the second through hole 223 in sequence and then threadedly connected with the nut 6, and at the same time uses a sleeve tool to tighten the bolt 5 to complete the parallel connection of the two busbars 3 of the equipment to be connected. When it is necessary to separate the equipment that has been connected in parallel, the operator uses a socket tool to remove all bolts 5, and then uses a rubber hammer to lightly tap the parallel busbar connection device upward to loosen it. The operator then takes out the plug-in parallel busbar connection device to disconnect the power connection between the two power equipment.

[0053] The above description is only used to illustrate the technical solution of the utility model, rather than to limit it. For ordinary professional and technical personnel in the field, the specific technical solution recorded in the above embodiment can be modified, or some of the technical features therein can be replaced by equivalents, and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution protected by the utility model.

Claims

1. A plug-in parallel busbar connection device with a limit function, used to realize the parallel connection of two busbars (3) of devices to be connected; characterized in that: It comprises a parallel busbar (1), a limit clamp (2) and a plurality of sets of fasteners; The position limiting clamp (2) comprises a horizontal plate (21) and a vertical plate (22) whose upper end is vertically connected to one end of the horizontal plate (21); The parallel busbar (1) and the vertical plate (22) are arranged parallel to each other in the vertical direction, and the upper end of the parallel busbar (1) is fixedly connected to the other end of the horizontal plate (21), so as to form a limiting groove in the space between the parallel busbar (1), the horizontal plate (21) and the vertical plate (22); the width of the limiting groove is adapted to the width of the busbar (3) of the device to be connected, so as to insert the connection ends of the busbars (3) of the two devices to be connected into the limiting groove respectively and correspond to the connection positions on the left and right sides of the parallel busbar (1); The plurality of groups of fasteners are used to respectively fix the connection ends of the busbars (3) of the two devices to be connected to the corresponding connection positions of the parallel busbar (1).

2. The plug-in parallel busbar connection device with a limit function according to claim 1, characterized in that: A plurality of first through holes (11) are respectively provided at the connection positions on the left and right sides of the parallel busbar (1); Second through holes (223) are respectively provided on the vertical plates (22) at positions corresponding to the first through holes (11); The connection ends of the two busbars (3) of the equipment to be connected are respectively provided with a plurality of corresponding third through holes (31); The fastener comprises a bolt (5) and a nut (6); One end of the bolt (5) passes through the corresponding first through hole (11), the third through hole (31) and the second through hole (223) in sequence and is threadedly connected to the nut (6).

3. The plug-in parallel busbar connection device with a limit function according to claim 2, characterized in that: The nut (6) is fixedly arranged at an end of the second through hole (223) away from the parallel busbar (1).

4. A plug-in parallel busbar connection device with a limit function according to claim 2 or 3, characterized in that: The vertical plate (22) comprises a first vertical plate (221) vertically connected to a left end of the horizontal plate (21) and a second vertical plate (222) vertically connected to a right end of the horizontal plate (21); A gap is provided between the first vertical plate (221) and the second vertical plate (222); the space between the parallel busbar (1), the horizontal plate (21) and the first vertical plate (221) forms a first limiting groove; and the space between the parallel busbar (1), the horizontal plate (21) and the second vertical plate (222) forms a second limiting groove; The plurality of second through holes (223) are arranged on the first vertical plate (221) and the second vertical plate (222), and the connection ends of the two busbars (3) of the equipment to be connected are respectively inserted into the first limiting groove and the second limiting groove.

5. The plug-in parallel busbar connection device with a limit function according to claim 4, characterized in that: Also includes one or two fastening screws (4); The other end of the horizontal plate (21) is vertically connected downwardly to a flap (23), and the flap (23) is located on the outside of the parallel busbar (1); The flap (23) is provided with one or two fourth through holes (231); A threaded hole (12) is provided on the parallel busbar (1) at a position corresponding to the fourth through hole (231); The fastening screw (4) passes through the fourth through hole (231) and is threadedly connected to the corresponding threaded hole (12), thereby fixing the upper end of the parallel busbar (1) to the other end of the horizontal plate (21).

6. The plug-in parallel busbar connection device with a limit function according to claim 5, characterized in that: The lower edges of the first vertical plate (221) and the second vertical plate (222) are provided with folded edges (224) facing outwards.

7. The plug-in parallel busbar connection device with a limit function according to claim 6, characterized in that: The number of the first through holes (11) on the left side and the right side of the parallel busbar (1) are both four.

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