T-connection type bus duct starting end box

Abstract

The utility model relates to the technical field of bus duct equipment, and discloses a T-connection type bus duct starting end box, which comprises a starting end box connected to one end of a bus duct, a busbar is arranged in the bus duct, one end of the busbar is located in the starting end box, a T-connection piece is arranged in the starting end box, one end of the T-connection piece is connected to the corresponding busbar, and the other end of the T-connection piece is connected to the other end of the bus duct. The other end of the T connecting piece penetrates through the starting end box to be communicated with the interior of the electric cabinet shell, a supporting pad is arranged on the inner bottom face of the starting end box, a pressing plate is further arranged on the top of the supporting pad, clamping grooves are formed in the positions, corresponding to the busbar and the T connecting piece, of the supporting pad and the pressing plate, the supporting pad is made of a flexible insulating material, and the pressing plate is made of a hard insulating material. The supporting pad is attached to the busbar and the T connecting piece under the pressure effect of the pressing plate. The T-connection type bus duct initial end box has the advantages that the busbar and the T-connection sheet are stably connected and are not easy to deform, the heat dissipation effect is strong, and the shockproof effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of bus duct equipment, in particular to a T-connected bus duct start-end box. Background Art

[0002] Bus duct is a kind of efficient power transmission equipment, which is mainly composed of copper and aluminum busbars to form a closed metal device. It is used for cable laying in power distribution systems. The bus duct starting box is the starting unit of the bus duct. As the incoming end of the bus duct transmission circuit, it needs to be electrically connected to the customer's transformer, generator or low-voltage cabinet to realize the transmission of electric energy.

[0003] The patent application number CN202022020426.7 discloses a T-connected bus duct starting unit, including a bus duct body, a box and a plurality of T-connected metal sheets. The box is arranged on one side of the bus duct body, and one end of the busbar of the bus duct body extends into the box. In order to improve the connection stability, a plurality of insulating clips are arranged at intervals in the box, and a plurality of slots are arranged at intervals on the insulating clips. The upper edge of one end of the busbar conductor extending into the box is correspondingly inserted into the slot. The connection end of the busbar is further fixed in the box in the above manner to prevent the thinner busbar conductor from being displaced under vibration and causing phase-to-phase short circuit.

[0004] By analyzing the existing technology, it is found that the T-connected bus duct starting box still has the following problems: the connection between the busbar and the T-connector in the starting box is easy to loosen when vibration occurs; the insulating clip can only clamp part of the busbar, and uneven force can easily cause dislocation or deformation; the heat dissipation effect in the starting box is poor; when the starting box is installed on the electrical cabinet, the shockproof effect is poor and there is a lack of anti-dismantling measures. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the shortcomings of the prior art, the utility model provides a T-connected bus duct starting box, which has the advantages of stable connection between the busbar and the T-connector and not easy to deform, strong heat dissipation effect and good shockproof effect, and solves the problem of easy loosening or deformation of the connection between the busbar and the T-connector in the starting box.

[0007] (II) Technical solution

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A T-connected bus duct starting box comprises a starting box connected to one end of the bus duct, a busbar is arranged in the bus duct, one end of the busbar is located inside the starting box, a T-connector is arranged in the starting box, one end of the T-connector is connected to the corresponding busbar, the other end of the T-connector passes through the starting box and is connected to the inside of an electric cabinet shell, a support pad is arranged on the inner bottom surface of the starting box, a pressure plate is also arranged on the top of the support pad, the support pad and the pressure plate are provided with card slots at the positions corresponding to the busbar and the T-connector, the support pad is a flexible insulating material, the pressure plate is a hard insulating material, and the support pad is attached to the busbar and the T-connector under the pressure of the pressure plate.

[0010] Preferably, the support pad is provided with a plurality of support pad through holes parallel to the busbar, and the support pad through holes improve the heat dissipation while enhancing the deformation ability and elasticity.

[0011] Preferably, a partition is further provided in the starting box, and the partition divides the space in the starting box into a main area and a heat dissipation partition. The support pad and the pressure plate are installed in the main area, and transverse heat dissipation holes are provided on the side walls of the partition and the main area at positions corresponding to the support pad through holes, and longitudinal heat dissipation holes are provided on the side walls of the heat dissipation partition. Air enters the heat dissipation partition from the transverse heat dissipation holes and the support pad through holes in turn, and is then discharged from the longitudinal heat dissipation holes, or enters the heat dissipation partition from the longitudinal heat dissipation holes and is then discharged from the transverse heat dissipation holes and the support pad through holes, thereby improving the heat dissipation effect and reducing the contact of dust with the busbar and T-pieces.

[0012] Preferably, the arrangement density of the transverse heat dissipation holes in the vertical direction is greater than that of the support pad through holes. The support pad is deformed after being squeezed by the pressure plate, and the density of the transverse heat dissipation holes is increased so that the support pad through holes are still aligned with the transverse heat dissipation holes after deformation.

[0013] Preferably, a blowing device is also provided in the heat dissipation barrier to improve the heat dissipation effect.

[0014] Preferably, a plurality of fixing bolts are also provided in the starting box, and each fixing bolt is evenly distributed on the pressure plate, one end of the fixing bolt is fixed to the top of the pressure plate, the middle of the fixing bolt passes through the support pad, and the other end of the fixing bolt is fixed in the electric cabinet housing. The fixing bolt provides the pressure plate with a force to squeeze the support pad, and the fixing bolt is also used to fix the starting box and the electric cabinet housing. Under the action of the support pad, the shock absorbing effect of the connection between the starting box and the electric cabinet housing is improved. At the same time, the fixing bolt is installed inside the starting box to improve the concealment of the detachable structure.

[0015] Preferably, a top cover is provided on the top of the starting box, and a top cover switch is provided on the top cover, and the fixing bolts can only be removed by opening the top cover.

[0016] Preferably, the busbar is provided with an insulating protective cover at the position where it passes through the starting box, and the T-joint is provided with an insulating protective cover at the position where it passes through the starting box and the electrical cabinet shell. The busbar is insulated from the bus duct, the starting box and the electrical cabinet shell, and the T-joint is insulated from the bus duct, the starting box and the electrical cabinet shell. The bus duct, the starting box and the electrical cabinet shell are electrically connected.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the utility model provides a T-connected bus duct start box, which has the following beneficial effects:

[0019] 1. The T-connected bus duct starting box provides elastic support for the connection between the busbar and the T-piece by arranging a support pad inside the starting box and then arranging a pressure plate for pressing down and fixing on the top of the support pad, thereby improving the stability of the connection and avoiding deformation of the busbar due to stress. At the same time, the support pad is wrapped around the bottom of the busbar and the T-piece, which has an insulating effect and avoids short circuit between the busbar and the T-piece and the starting box.

[0020] 2. The T-connected bus duct starting box is provided with support pad through holes parallel to the busbar in the support pad, and then a partition is provided to divide the starting box into a main area and a heat dissipation partition. Horizontal heat dissipation holes are provided on the two side walls of the main area at positions corresponding to the support pad through holes, and longitudinal heat dissipation holes are provided on the side walls of the heat dissipation partition. The horizontal heat dissipation holes, the support pad through holes and the longitudinal heat dissipation holes form a ventilation channel, which improves the heat dissipation effect in the starting box. At the same time, the support pad through holes are closed to improve the deformation capacity of the support pad.

[0021] 3. The T-connected bus duct starting box is provided with fixing bolts in the starting box, one end of the fixing bolts is fixed to the top of the pressure plate, the middle of the fixing bolts passes through the support pad, and the other end of the fixing bolts is fixed in the electric cabinet housing. The fixing bolts provide the pressure plate with a force to squeeze the support pad. The fixing bolts are also used to fix the starting box and the electric cabinet housing. Under the action of the support pad, the shock absorbing effect of the connection between the starting box and the electric cabinet housing is improved. At the same time, the fixing bolts are installed inside the starting box to improve the concealment of the detachable structure. The fixing bolts can only be removed after opening the top cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The utility model is a schematic diagram of the structure of the T-connected bus duct start box when it is installed on the electric cabinet housing.

[0023] Figure 2 It is a front view of the T-connected bus duct starting box of the utility model.

[0024] Figure 3 It is an isometric side sectional view of the T-connected bus duct starting end box of the utility model.

[0025] Figure 4 The utility model is a schematic diagram of the structure of the T-connected bus duct starting box after removing the top cover.

[0026] Figure 5 It is a cross-sectional view of the fixing bolt connection structure of the T-connected bus duct starting box of the utility model.

[0027] In the figure: 100, bus duct; 110, busbar;

[0028] 200, starting box; 210, T-piece; 220, support pad; 221, support pad through hole; 230, pressure plate; 240, fixing bolt; 250, partition; 260, top cover; 261, top cover switch; 271, horizontal heat dissipation hole; 272, vertical heat dissipation hole; 201, main area; 202, heat dissipation partition;

[0029] 300. Electric cabinet housing. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] 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 one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] Embodiment 1:

[0034] This embodiment provides a T-connected bus duct starting box having the following technical features.

[0035] See also Figure 1-5 A T-connected bus duct starting box includes a starting box 200 connected to one end of a bus duct 100, a busbar 110 is arranged in the bus duct 100, one end of the busbar 110 is located inside the starting box 200, a T-connector 210 is arranged in the starting box 200, one end of the T-connector 210 is connected to the corresponding busbar 110, and the other end of the T-connector 210 passes through the starting box 200 and is connected to the inside of the electric cabinet housing 300, a support pad 220 is arranged on the bottom surface of the inner part of the starting box 200, and a pressing plate 230 is also arranged on the top of the support pad 220, and the support pad 220 and the pressing plate 230 are provided with card slots at the positions corresponding to the busbar 110 and the T-connector 210, the support pad 220 is a flexible insulating material, and the pressing plate 230 is a hard insulating material, and the support pad 220 is attached to the busbar 110 and the T-connector 210 under the pressure of the pressing plate 230.

[0036] Specifically, the T-connector 210 is a metal sheet, and the T-connector 210 and the busbar 110 are electrically connected via bolts.

[0037] Specifically, the support pad 220 is made of elastic rubber material, and the pressing plate 230 is made of hard plastic material.

[0038] According to the above technical solution, the T-connected bus duct starting box provides elastic support for the connection between the busbar 110 and the T-connector 210 by setting a support pad 220 in the starting box 200, and then setting a pressure plate 230 for pressing down and fixing on the top of the support pad 220, thereby improving the stability of the connection and preventing the busbar 110 from being deformed due to force. At the same time, the support pad 220 is wrapped around the bottom of the busbar 110 and the T-connector 210, which has an insulating effect and prevents the busbar 110 and the T-connector 210 from short-circuiting due to contact with the starting box 200.

[0039] In an optional embodiment, the support pad 220 is provided with a plurality of support pad through holes 221 parallel to the busbar 110 , and the support pad through holes 221 enhance the deformation ability and elasticity while improving the heat dissipation.

[0040] It should be noted that the support pad through hole 221 is parallel to the direction of the busbar 110, so that both ends of the support pad through hole 221 pass through the entire support pad 220 to improve the heat dissipation effect. The busbar 110 is distributed in a straight line in the starting box 200 to avoid blocking the support pad through hole 221 due to corners.

[0041] Furthermore, a partition 250 is provided in the starting box 200, and the partition 250 divides the space in the starting box 200 into a main area 201 and a heat dissipation partition 202. The support pad 220 and the pressure plate 230 are installed in the main area 201, and transverse heat dissipation holes 271 are provided on the side walls of the partition 250 and the main area 201 at positions corresponding to the support pad through holes 221, and longitudinal heat dissipation holes 272 are provided on the side walls of the heat dissipation partition 202. Air enters the heat dissipation partition 202 from the transverse heat dissipation holes 271 and the support pad through holes 221 in turn, and is then discharged from the longitudinal heat dissipation holes 272, or enters the heat dissipation partition 202 from the longitudinal heat dissipation holes 272 and is then discharged from the transverse heat dissipation holes 271 and the support pad through holes 221, thereby improving the heat dissipation effect and reducing the contact of dust with the busbar 110 and the T-piece 210.

[0042] It should be noted that the partition 250 is perpendicular to the busbar 110 , and the main area 201 is located on a side close to the busbar 110 .

[0043] Furthermore, the arrangement density of the transverse heat dissipation holes 271 in the vertical direction is greater than that of the support pad through holes 221. The support pad 220 is deformed after being squeezed by the pressure plate 230, and the density of the transverse heat dissipation holes 271 is increased so that the support pad through holes 221 are still aligned with the transverse heat dissipation holes 271 after deformation.

[0044] Furthermore, a blast device is provided in the heat dissipation barrier 202 to improve the heat dissipation effect.

[0045] It should be noted that the air blowing device blows the airflow from the longitudinal heat dissipation holes 272 into the support pad through holes 221 or from the support pad through holes 221 into the longitudinal heat dissipation holes 272 .

[0046] According to the above technical solution, the T-connected bus duct starting box is provided with a support pad through hole 221 parallel to the busbar 110 in the support pad 220, and a partition 250 is provided to divide the starting box 200 into a main area 201 and a heat dissipation partition 202. Horizontal heat dissipation holes 271 are provided on the two side walls of the main area 201 at positions corresponding to the support pad through holes 221, and longitudinal heat dissipation holes 272 are provided on the side walls of the heat dissipation partition 202. The horizontal heat dissipation holes 271, the support pad through holes 221 and the longitudinal heat dissipation holes 272 form a ventilation channel, thereby improving the heat dissipation effect in the starting box 200. At the same time, the closure of the support pad through holes 221 improves the deformation capacity of the support pad 220.

[0047] In an optional embodiment, a plurality of fixing bolts 240 are further provided in the starting box 200, and each fixing bolt 240 is evenly distributed on the pressure plate 230, one end of the fixing bolt 240 is fixed to the top of the pressure plate 230, the middle of the fixing bolt 240 passes through the support pad 220, and the other end of the fixing bolt 240 is fixed in the electric cabinet housing 300, and the fixing bolt 240 provides the pressure plate 230 with a force to squeeze the support pad 220, and the fixing bolt 240 is also used to fix the starting box 200 and the electric cabinet housing 300. Under the action of the support pad 220, the shock absorbing effect of the connection between the starting box 200 and the electric cabinet housing 300 is improved, and at the same time, the fixing bolt 240 is installed inside the starting box 200 to improve the concealment of the detachable structure.

[0048] It should be noted that the fixing bolt 240 is composed of a bolt and a nut, and the bolt head can be installed in the starting box 200 or in the electric cabinet housing 300 .

[0049] It is further provided that a top cover 260 is provided on the top of the starting box 200, and a top cover switch 261 is provided on the top cover 260, and the fixing bolts 240 can only be removed by opening the top cover 260.

[0050] It is further provided that the busbar 110 is provided with an insulating protective cover at the position where it passes through the starting box 200, and the T-joint 210 is provided with an insulating protective cover at the position where it passes through the starting box 200 and the electrical cabinet housing 300. The busbar 110 is insulated from the bus duct 100, the starting box 200 and the electrical cabinet housing 300, and the T-joint 210 is insulated from the bus duct 100, the starting box 200 and the electrical cabinet housing 300. The bus duct 100, the starting box 200 and the electrical cabinet housing 300 are electrically connected.

[0051] It should be noted that the electrical connection between the bus duct 100, the starting box 200 and the electric cabinet housing 300 can pour the electricity on the housing into the electric cabinet housing 300 and then be grounded through the electric cabinet housing 300 when a short circuit occurs in the bus duct 100 or the starting box 200, thereby avoiding electric shock.

[0052] According to the above technical solution, the T-connected bus duct starting box is provided with a fixing bolt 240 in the starting box 200, one end of the fixing bolt 240 is fixed to the top of the pressure plate 230, the middle of the fixing bolt 240 passes through the support pad 220, and the other end of the fixing bolt 240 is fixed in the electric cabinet housing 300. The fixing bolt 240 provides the pressure plate 230 with a force to squeeze the support pad 220. The fixing bolt 240 is also used to fix the starting box 200 and the electric cabinet housing 300. Under the action of the support pad 220, the shock absorbing effect of the connection between the starting box 200 and the electric cabinet housing 300 is improved. At the same time, the fixing bolt 240 is installed inside the starting box 200 to improve the concealment of the detachable structure. The fixing bolt 240 can be removed only after the top cover 260 is opened.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A T-connected bus duct start box, comprising a start box (200) connected to one end of a bus duct (100), wherein a busbar (110) is arranged in the bus duct (100), wherein one end of the busbar (110) is located inside the start box (200), wherein a T-connector (210) is arranged in the start box (200), wherein one end of the T-connector (210) is connected to the corresponding busbar (110), and the other end of the T-connector (210) passes through the start box (200) and is connected to the inside of an electric cabinet housing (300), wherein: The starting box (200) is provided with a support pad (220) on the inner bottom surface, and a pressure plate (230) is also provided on the top of the support pad (220), and the support pad (220) and the pressure plate (230) are provided with slots at positions corresponding to the busbar (110) and the T-joint (210); The support pad (220) is made of a flexible insulating material, the pressure plate (230) is made of a hard insulating material, and the support pad (220) is attached to the busbar (110) and the T-joint (210) under the pressure of the pressure plate (230).

2. A T-connected bus duct start box according to claim 1, characterized in that: The support pad (220) is provided with a plurality of support pad through holes (221) parallel to the busbar (110), and the support pad through holes (221) improve heat dissipation while enhancing deformation capability and elasticity.

3. A T-connected bus duct start box according to claim 2, characterized in that: A partition (250) is also provided in the starting box (200), and the partition (250) divides the space in the starting box (200) into a main area (201) and a heat dissipation partition (202). The support pad (220) and the pressure plate (230) are installed in the main area (201). The side walls of the partition (250) and the main area (201) are provided with transverse heat dissipation holes (271) at positions corresponding to the support pad through holes (221), and the side walls of the heat dissipation partition (202) are provided with longitudinal heat dissipation holes (272).

4. A T-connected bus duct start box according to claim 3, characterized in that: The arrangement density of the transverse heat dissipation holes (271) in the vertical direction is greater than that of the support pad through holes (221).

5. A T-connected bus duct start box according to claim 4, characterized in that: An air blowing device is also provided in the heat dissipation insulation layer (202).

6. The T-connected bus duct start box according to claim 1, characterized in that: A plurality of fixing bolts (240) are also arranged in the starting box (200), and each fixing bolt (240) is evenly distributed on the pressure plate (230). One end of the fixing bolt (240) is fixed to the top of the pressure plate (230), the middle of the fixing bolt (240) passes through the support pad (220), and the other end of the fixing bolt (240) is fixed in the electric cabinet housing (300).

7. A T-connected bus duct start box according to claim 6, characterized in that: A top cover (260) is provided on the top of the starting box (200), and a top cover switch (261) is provided on the top cover (260).

8. The T-connected bus duct start box according to claim 1, characterized in that: The busbar (110) is provided with an insulating protective sleeve at a position where it passes through the starting box (200); the T-joint (210) is provided with an insulating protective sleeve at a position where it passes through the starting box (200) and the electric cabinet housing (300); the busbar (110) is insulated from the bus duct (100), the starting box (200) and the electric cabinet housing (300); the T-joint (210) is insulated from the bus duct (100), the starting box (200) and the electric cabinet housing (300); and the bus duct (100), the starting box (200) and the electric cabinet housing (300) are electrically connected.

Images