Connecting device of shell protection integrated bus duct

Abstract

The invention discloses a connecting device of a shell protection integrated bus duct, and belongs to the technical field of power transmission and distribution equipment, the connecting device comprises a connector, bus duct shells, conductors and joint side plates, the conductors and the joint side plates are arranged in the bus duct shells, the connector is used for connecting the conductors in the adjacent bus duct shells, and first sealing strips are arranged between the joint side plates and the bus duct shells; the first sealing strip comprises a first sealing part and a second sealing part; the first sealing part extends along the surface of the bus duct shell to seal a gap between the bus duct shell and the joint side plate; the second sealing part is bent relative to the first sealing part and extends along the surface of the joint side plate to separate the conductor from the joint side plate; all butt-joint conductors, penetrating out of the bus duct shell, at the connector are further provided with insulation isolation pieces which are used for flexible self-adaptive sealing and isolation of butt-joint positions during butt-joint connection and are used for mutual insulation and isolation between adjacent conductors. The connecting device enables the bus duct to realize butt joint sealing and insulation protection functions at the same time, and solves the problem that the bus duct in the prior art cannot have sealing and protection functions at the same time.

Description

[Technical field]

[0001] The invention relates to a connection technology for power transmission and distribution equipment, and in particular to a connection device for a bus duct with integrated shell and protection. [Background technology]

[0002] Bus duct is a power transmission trunk line used in construction projects and is a substitute for power cables. Bus duct is a closed metal device composed of copper and aluminum busbars, which is used to distribute higher power to various components of the distributed system.

[0003] In the prior art, the connection device of the bus duct with integrated shell and protection includes a bus duct shell, a conductor arranged in the bus duct shell, and joint side plates connected to both ends of the bus duct shell. The conductor passes through the bus duct and extends into the joint side plates separated from each other. If the seal between the joint side plates and the bus duct shell is poor, dust and water may enter, which may cause creepage and short circuit after being damp. For this reason, the prior art CN207896615U discloses that a sealing strip is set, but there is no separation structure between the joint side plate and the conductor. The burrs on the joint side plate and the extrusion of the joint side plate are easy to damage the conductor, and it is impossible to have both sealing and protection functions at the same time. [Summary of the invention]

[0004] In order to solve the problem in the prior art that bus ducts cannot have both sealing and protection functions at the same time, the connection device of the shell-protection integrated bus duct provided by the present invention effectively realizes the sealing connection and insulation protection functions at the joint of the bus duct through the mutual cooperation of the sealing strip, the sealing part and the insulating isolation sheet, increases the leakage current flow rate inside and outside the shell, ensures the temperature rise of various parts and effectively improves the grounding protection.

[0005] The technical solution adopted by the present invention is:

[0006] The connection device of the bus duct with integrated shell and protection is used for sealing and protecting the bus duct, and comprises a connector, a bus duct shell, a conductor arranged in the bus duct shell and joint side plates connected to both ends of the bus duct shell, wherein the conductor passes through the bus duct shell from the end side and the joint side plates located at the same end of the bus duct shell are separated from each other;

[0007] The connector is used to connect the conductors in adjacent bus duct housings, and a first sealing strip is provided between the connector side plate and the bus duct housing;

[0008] The first sealing strip comprises a first sealing portion extending along the surface of the bus duct housing to seal the gap between the bus duct housing and the joint side plate, and a second sealing portion bent relative to the first sealing portion and extending along the surface of the joint side plate to separate the conductor from the joint side plate;

[0009] All the butt-jointed conductors passing through the bus duct housing at the connector are also provided with insulating isolation sheets for flexible adaptive sealing and isolation at the butt joints during butt connection, as well as for mutual insulation and isolation between adjacent conductors.

[0010] After adopting the above technical scheme, the present invention has the following advantages: the joint side plates are separated from each other to avoid the conductor passing through the bus duct shell, ensuring the normal extension of the conductor without hindrance, and also reducing the risk of electrical failure caused by poor contact. The first sealing strip is divided into two parts: a first sealing part and a second sealing part. The first sealing part extends along the surface of the bus duct shell to seal the gap between the bus duct shell and the joint side plate. The second sealing part extends along the surface of the joint side plate to form protection for the conductor, avoiding direct contact between the conductor and the joint side plate, and effectively avoiding the burrs of the joint side plate from contacting the conductor. The second sealing part can also buffer the extrusion of the conductor by the joint side plate, play a protective role, and increase the safety of the system.

[0011] Furthermore, the second sealing portion and the conductor are spaced apart.

[0012] By adopting the above technical solution, maintaining a certain distance can avoid direct contact between the conductor and the second sealing part, further reducing the damage to the conductor caused by burrs or displacement of the joint side plate.

[0013] Furthermore, the joint side plate includes a first bending portion that fits the bus duct shell, a second bending portion that is bent relative to the first bending portion and connected to the connector, and a first pre-positioning structure is provided at the bending portion between the first bending portion and the second bending portion to enable the first sealing strip to be installed at a predetermined position on the joint side plate.

[0014] By adopting the above-mentioned technical solution, the first pre-positioning structure ensures that the first sealing strip can be accurately installed at the predetermined position on the joint side plate, reducing installation errors. Accurate positioning can ensure that the first sealing strip covers the part that needs to be sealed as much as possible, thereby improving the sealing effect.

[0015] Furthermore, the first sealing strip further comprises a fixing portion connected between the first sealing portion and the second sealing portion, and the first pre-positioning structure comprises a first positioning hole plugged into and matched with the fixing portion to pre-position the fixing portion.

[0016] By adopting the above-mentioned technical solution, the cooperation between the fixing portion and the positioning hole increases the connection strength between the first sealing strip and the joint side plate, thereby preventing the first sealing strip from shifting due to vibration or external force during use.

[0017] Furthermore, the portion of the conductor extending outside the bus duct shell includes a first straight segment, a bent segment inclined outward from the center, and a second straight segment, the bent segment connects the first straight segment and the second straight segment, and the second sealing portion is arranged in parallel with the first straight segment.

[0018] By adopting the above-mentioned technical solution, the second sealing portion is arranged in parallel with the first straight line segment, which can ensure that an effective separation is formed between the conductor protruding portion and the joint side plate.

[0019] Furthermore, the length of the first sealing portion is not less than the length of the second sealing portion.

[0020] By adopting the above-mentioned technical solution, the first sealing part is responsible for sealing the gap between the bus duct shell and the joint side plate. The longer first sealing part can ensure that the entire joint area is fully sealed to prevent dust, moisture and other contaminants from entering the bus duct. The shorter second sealing part can also protect the conductor while minimizing the impact on the heat dissipation of the conductor.

[0021] Furthermore, the second bending portion includes a first section parallel to the bending section and a second section parallel to the second straight section, and the first section is provided with heat dissipation teeth.

[0022] By adopting the above-mentioned technical solution, the design of the heat dissipation teeth increases the surface area, which helps to dissipate the heat generated by the conductor during operation more quickly, thereby improving the heat dissipation efficiency and keeping the operating temperature of the conductor within a safe range. The first section is also in a bent shape to increase the surface area of ​​the heat dissipation teeth as much as possible, further improving the heat dissipation efficiency.

[0023] Furthermore, the connector includes two connecting side plates arranged opposite to each other on the left and right, and two connecting cover plates arranged opposite to each other up and down and covering the connecting side plates. The connecting side plates include a sealing portion for sealing the gap between the two ends of the connector side plates, and an overlapping portion overlapping with the surface of the connector side plates. A second sealing strip is provided between the overlapping portion and the connector side plates.

[0024] By adopting the above-mentioned technical solution, the design of the sealing part and the overlapping part ensures that the gap between the ends of the two joint side plates is completely sealed. At the same time, the second sealing strip further enhances the sealing effect to prevent pollutants such as dust and moisture from entering the bus duct.

[0025] Furthermore, the connector also includes a bolt, two nuts and two crescent-shaped elastic washers, the two crescent-shaped elastic washers are respectively located on the outer side surfaces of the connecting side plates, the two ends of the connecting side plates are bent outward to form a slot, the crescent-shaped elastic washers are installed in the slot, the bolt passes through the two crescent-shaped elastic washers and the connecting side plates, and the two ends of the bolt are fixed by the nuts.

[0026] By adopting the above-mentioned technical solution, the design of the crescent-shaped elastic gasket can provide additional elastic force when the bolts are tightened, ensuring a tight fit between the connecting side plate and the joint side plate, improving the sealing of the connection and preventing loosening.

[0027] Furthermore, a PE protective conductor is provided in the bus duct housing, the bus duct housing is a PE structure, and the PE protective conductor and the bus duct housing are integrally formed.

[0028] By adopting the above-mentioned technical solution, the shell and the PE protective conductor are integrated, connected to the total equipotential, and the local equipotential forms a protective grounding system, which improves the evacuation capacity, ensures that the accident voltage of the shell does not endanger personal safety, and truly realizes the function of the protective grounding system.

[0029] The beneficial effects of the present invention are:

[0030] In the present invention, the first sealing part and the second sealing part at the first sealing strip, as well as the insulating isolation sheet, enable the bus duct to simultaneously realize the docking sealing and insulation protection functions, thereby solving the problem in the prior art that the bus duct cannot simultaneously have the sealing and protection functions, and is convenient for installation and maintenance; at the same time, the PE protective conductor arranged in the middle of the bus duct shell can also effectively increase the leakage current flow rate inside and outside the shell, avoid the leakage current being unable to be discharged in time due to insufficient flow rate, avoid the uncertainty of the current flow capacity between the shell and the independent PE, effectively avoid the uneven three-phase voltage drop, ensure the temperature rise of each part and effectively improve the grounding protection.

Brief Description of the Drawings

[0031] The present invention will be further described below in conjunction with the accompanying drawings:

[0032] Figure 1 It is a schematic diagram of the connection device of the shell-protection integrated bus duct in the present invention;

[0033] Figure 2 It is an enlarged structural schematic diagram of one end of the connection device of the shell-protection integrated bus duct in the present invention;

[0034] Figure 3 It is a partial enlarged schematic diagram of the connection device of the shell-protection integrated bus duct in the present invention;

[0035] Figure 4 For the present invention Figure 3 A magnified view of the structure at center A;

[0036] Figure 5 is an enlarged structural schematic diagram of the first sealing strip in the present invention;

[0037] In the figure, 100, connector; 110, connecting side plate; 111, sealing part; 112, overlapping part; 113, slot; 114, second positioning hole; 120, connecting cover plate; 130, bolt; 140, nut; 150, crescent-shaped elastic gasket; 200, bus duct shell; 201, insulating spacer; 210, conductor; 211, first straight segment; 212, bending segment; 213, second straight segment; 220, joint side plate; 221, first bending part; 2222, second bending part; 2221, first section; 2222, second section; 2223, heat dissipation tooth; 223, first positioning hole; 230, avoidance area; 240, PE protective conductor; 300, first sealing strip; 310, first sealing part; 320, second sealing part; 330, fixing part; 400, second sealing strip. [Specific implementation method]

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0039] In the description of the present invention, the meaning of "several" is one or more, the meaning of "more" is two or more, "greater than", "less than", "exceed" and the like are understood as not including the number itself, and "above", "below", "right", "vertical", "horizontal", "inside", "outside" and the like are understood as including the number itself. If the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does 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 limiting the present invention.

[0040] In addition, if “first” or “second” is described, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0041] It should be understood that in various embodiments of the present invention, the size of the serial numbers of the processes does not mean the order of execution. The execution order of the processes should be determined by their functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0042] It should be understood that in the present invention, "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0043] It should be understood that in the present invention, "plurality" refers to two or more than two. "And / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, X and / or Y can represent: X exists alone, X and Y exist at the same time, and Y exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "Contains X, Y and Z", "Contains X, Y, Z" means that X, Y, and Z are all included, "Contains X, Y or Z" means that one of X, Y, and Z is included, and "Contains X, Y and / or Z" means that any one, any two, or three of X, Y, and Z are included.

[0044] In addition, in the description of the present invention, unless otherwise clearly defined, the words such as setting, installing, connecting, etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above words in the present invention can be reasonably determined in combination with the specific content of the technical solution.

[0045] The technical solution of the present invention is described in detail with specific embodiments below. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0046] like Figures 1 to 5As shown, the connection device of the shell-protection integrated bus duct provided by the present invention includes a connector 100, a bus duct housing 200, a conductor 210 arranged in the bus duct housing 200, and a joint side plate 220 connected to both ends of the bus duct housing 200, wherein the conductor 210 passes through the bus duct housing 200 from the end side, and the joint side plates 220 located at the same end of the bus duct housing 200 are separated from each other; the connector 100 is used to connect the conductors 210 in adjacent bus duct housings 200, and a first sealing strip 300 is provided between the joint side plate 220 and the bus duct housing 200, and the first The sealing strip 300 includes a first sealing portion 310 extending along the surface of the bus duct housing 200 to seal the gap between the bus duct housing 200 and the joint side plate 220, and a second sealing portion 320 bent relative to the first sealing portion 310 and extending along the surface of the joint side plate 220 to separate the conductor 210 and the joint side plate 220; all the docking conductors 210 passing through the bus duct housing 200 at the connector 100 are also provided with an insulating isolation sheet 201 for flexible adaptive sealing and isolation at the docking point during docking connection, as well as insulation isolation between adjacent conductors 210.

[0047] The joint side plates 220 are separated from each other to avoid the conductor 210 passing through the bus duct housing 200, ensuring the normal extension of the conductor 210 without obstruction, and also reducing the risk of electrical failure caused by poor contact. The first sealing strip 300 is divided into two parts: a first sealing portion 310 and a second sealing portion 320. The first sealing portion 310 extends along the surface of the bus duct housing 200 to seal the gap between the bus duct housing 200 and the joint side plate 220. The second sealing portion 320 extends along the surface of the joint side plate 220 to form protection for the conductor 210, avoiding direct contact between the conductor 210 and the joint side plate 220, and effectively avoiding the burrs of the joint side plate 220 from contacting the conductor 210. The second sealing portion 320 can also buffer the squeezing of the conductor 210 by the joint side plate 220, play a protective role, and increase the safety of the system.

[0048] In order to further reduce the damage of the conductor 210 caused by the burr or displacement of the joint side plate 220, the second sealing portion 320 and the conductor 210 are spaced apart, and a certain distance can be maintained to avoid direct contact between the conductor 210 and the second sealing portion 320. Specifically, there is an avoidance area 230 between the second sealing portion 320 and the conductor 210.

[0049] The portion of the conductor 210 extending outside the bus duct housing 200 includes a first straight segment 211, a bent segment 212 inclined outward from the center, and a second straight segment 213. The bent segment 212 connects the first straight segment 211 and the second straight segment 213. The second sealing portion 320 and the first straight segment 211 are arranged in parallel to ensure that an effective separation is formed between the protruding portion of the conductor 210 and the joint side plate 220.

[0050] In order to ensure the sealing effect while reducing the heat dissipation effect on the conductor 210, the length of the first sealing portion 310 is not less than the length of the second sealing portion 320. The first sealing portion 310 is responsible for sealing the gap between the bus duct housing 200 and the joint side plate 220. The longer first sealing portion 310 can ensure that the entire joint area is fully sealed to prevent dust, moisture and other contaminants from entering the bus duct. The shorter second sealing portion 320 can also protect the conductor 210 while minimizing the effect on the heat dissipation of the conductor 210.

[0051] To facilitate the installation of the first sealing strip 300, the joint side panel 220 includes a first bending portion 221 that fits the bus duct housing 200, and a second bending portion 222 that is bent relative to the first bending portion 221 and connected to the connector 100. A first pre-positioning structure is provided at the bending portion between the first bending portion 221 and the second bending portion 222 so that the first sealing strip 300 can be installed at a predetermined position on the joint side panel 220, thereby reducing installation errors. Accurate positioning can ensure that the first sealing strip 300 covers the portion that needs to be sealed as much as possible, thereby improving the sealing effect.

[0052] Among them, the first sealing strip 300 also includes a fixing portion 330 connected between the first sealing portion 310 and the second sealing portion 320, and the first pre-positioning structure includes a first positioning hole 223 that is plugged into and cooperates with the fixing portion 330 to pre-position the fixing portion 330. The cooperation between the fixing portion 330 and the positioning hole increases the connection strength between the first sealing strip 300 and the joint side plate 220, thereby preventing the first sealing strip 300 from shifting due to vibration or external force during use.

[0053] In order to further improve the heat dissipation effect, the second bent portion 222 includes a first section 2221 parallel to the bent section 212 and a second section 2222 parallel to the second straight section 213. The first section 2221 is provided with heat dissipation teeth 2223. The design of the heat dissipation teeth 2223 increases the surface area, which helps to dissipate the heat generated by the conductor 210 during operation more quickly, thereby improving the heat dissipation efficiency and keeping the operating temperature of the conductor 210 within a safe range. The first section 2221 is also in a bent shape, which increases the surface area of ​​the heat dissipation teeth 2223 as much as possible, further improving the heat dissipation efficiency.

[0054] The connector 100 includes two connecting side plates 110 disposed opposite to each other, and two connecting cover plates 120 disposed opposite to each other and covering the connecting side plates 110. The connecting side plates 110 include a blocking portion 111 for blocking the gap between the ends of the two joint side plates 220, and an overlapping portion 112 overlapping the surface of the joint side plates 220. A second sealing strip 400 is provided between the overlapping portion 112 and the joint side plates 220. The design of the blocking portion 111 and the overlapping portion 112 ensures that the gap between the ends of the two joint side plates 220 is completely blocked. At the same time, the second sealing strip 400 further enhances the sealing effect to prevent dust, moisture and other pollutants from entering the bus duct. An insulating member is provided inside the connector 100 to separate the conductors 210.

[0055] To facilitate the installation of the second sealing strip 400, a second positioning hole 114 is provided on the overlapping portion 112. The cooperation between the second sealing strip 400 and the second positioning hole 114 increases the connection strength between the second sealing strip 400 and the joint side plate 220, thereby preventing the second sealing strip 400 from shifting due to vibration or external force during use.

[0056] Specifically, the connector 100 also includes a bolt 130, two nuts 140 and two crescent-shaped elastic washers 150. The two crescent-shaped elastic washers 150 are respectively located on the outer side of the connecting side plate 110. The two ends of the connecting side plate 110 are bent outward to form a slot 113. The crescent-shaped elastic washers 150 are installed in the slot 113. The bolt 130 passes through the two crescent-shaped elastic washers 150 and the connecting side plate 110. The two ends of the bolt 130 are fixed by nuts 140. The design of the crescent-shaped elastic washers 150 can provide additional elastic force when the bolt 130 is tightened, ensuring that the connecting side plate 110 and the connector side plate 220 fit tightly, improving the sealing of the connection, and preventing loosening. The crescent-shaped elastic washers 150 are all pressed at the connection of the conductor 210. The two ends of the connecting side plate 110 are bent outward and provided with heat dissipation teeth 2223, which further play a heat dissipation role and prevent the connector 100 from overheating.

[0057] It should be noted that in this embodiment, the joint side plates 220 are located on the left and right sides of the bus duct housing 200, the joint side plates 220 are arranged from top to bottom, the first sealing strip 300 is arranged from top to bottom, and the two ends of the connecting cover plate 120 are connected to the bus duct housing 200, and the upper and lower openings of the connecting side plates 110 and the upper and lower openings of the joint side plates 220 are closed at the same time, so as to play a sealing role. Of course, in other embodiments, the joint side plates 220 can also be located on the upper and lower sides of the bus duct housing 200 or are located on all sides of the bus duct housing 200 at the same time.

[0058] In order to further achieve dust and water proofing, full-length wrapped polyester film plus silicone is used as insulating parts, which has the characteristics of high heat resistance and non-water absorption. In addition, the first sealing strip 300 and the second sealing strip 400 are set at all the joints, so that the protection level of the bus duct device can reach above IP65.

[0059] In the prior art, the PE protective conductor 240 is independently built-in, and the independent PE protective conductor 240 can only be transmitted to the distribution room when PE is energized. When the main line is single-phase to the ground, the PE line loses its function, the fault current cannot be quickly evacuated, and the upper protective device cannot be driven to quickly cut off the power supply. The fault voltage of the bus duct housing 200 will endanger personal safety, and there will be a risk of ignition at the accident point expanding to a phase-to-phase short circuit and causing an electrical fire. Of course, in the prior art, the bus duct housing 200 is a PE structure, and the bus duct and the PE protective conductor 240 are not integrally formed. Since the bus duct housing 200 is connected in multiple sections, a sealing structure is set between the bus duct housings 200 for waterproof sealing. Each section of the bus duct housing 200 cannot achieve the equivalent conductivity of PE, and the fault current evacuation capability is poor. For this reason, in the present application, a PE protective conductor 240 is provided in the bus duct housing 200. The bus duct housing 200 is a PE structure. The PE protective conductor 240 and the bus duct housing 200 are integrally formed and centrally arranged to realize the connection between each section of the bus duct housing 200, and the total equipotential is connected. The local equipotential forms a protective grounding system, which can transfer the internal heat accumulation to the outside through the outer cover plate and the inner partition of the bus duct, effectively prevent the occurrence of internal heat accumulation, effectively reduce the temperature rise index during the operation of the bus duct, improve the stability and safety of the bus duct, and the structure is compact and not easy to deform. Moreover, when a single-phase grounding occurs, there are multiple equipotentials nearby for evacuation, which greatly improves the evacuation capacity, speeds up the action of the upper protection circuit breaker to quickly cut off the power supply, and the voltage of the bus duct housing 200 will not endanger personal safety, will not cause phase-to-phase short circuits and electrical fires, and ensure that the accident voltage of the bus duct housing 200 does not endanger personal safety, and truly realizes the function of the protective grounding system.

[0060] In order to further improve safety, a six-wire measuring and controlling instrument is installed at the beginning of each bus duct housing 200 and after the capacity is changed, to detect the conductor 210 inside the bus duct housing 200 and the ambient temperature, as well as the voltage of the bus duct housing 200, to realize over-temperature alarm, and automatically cut off the power supply when the temperature exceeds the limit or the single phase is grounded. This solves the problem of the connection device of the integrated bus duct without overload protection and protection after capacity change, saves engineering costs, and increases the service life of the connection device of the integrated bus duct.

[0061] In order to improve the structural strength, the connection cover plate 120 uses a color-coated steel plate shell and adds reinforcing ribs. After the two sides are riveted to the I-shaped bus duct housing 200 with steel rivets, the force of the bus duct housing 200 is mainly on the connection cover plate 120, ensuring the mechanical strength and operational stability of the connection device of the shell-protection integrated bus duct. The I-shaped bus duct housing 200 can also prevent secondary electrical accidents from causing phase-to-phase short circuits, electrical fires, and electric shocks.

[0062] In the description of the present invention, it should be noted that the terms "inside", "outside", "top", "bottom", "front", "back", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when used. They 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.

[0063] The above-described embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. All equivalent changes made based on the shape, structure and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The connection device of the integrated bus duct with shell and protection is used for sealing and protecting the bus duct, and is characterized by: It includes a connector, a bus duct housing, a conductor arranged in the bus duct housing, and joint side plates connected to both ends of the bus duct housing, wherein the conductor passes through the bus duct housing from the end side, and the joint side plates located at the same end of the bus duct housing are separated from each other; The connector is used to connect the conductors in adjacent bus duct housings, and a first sealing strip is provided between the connector side plate and the bus duct housing; The first sealing strip comprises a first sealing portion extending along the surface of the bus duct housing to seal the gap between the bus duct housing and the joint side plate, and a second sealing portion bent relative to the first sealing portion and extending along the surface of the joint side plate to separate the conductor from the joint side plate; All the butt-jointed conductors passing through the bus duct housing at the connector are also provided with insulating isolation sheets for flexible adaptive sealing and isolation at the butt joints during butt connection, as well as for mutual insulation and isolation between adjacent conductors.

2. The connection device of the integrated bus duct with a shell and protection device according to claim 1 is characterized in that: The second sealing portion and the conductor are spaced apart.

3. The connection device of the bus duct with integrated shell and protection according to claim 1 is characterized in that: The joint side plate includes a first bending portion and a second bending portion that fit the bus duct shell, the second bending portion is bent relative to the first bending portion and connected to the connector, and a first pre-positioning structure is provided at the bending portion between the first bending portion and the second bending portion so that the first sealing strip can be installed at a predetermined position on the joint side plate.

4. The connection device of the bus duct with integrated housing and protection according to claim 3 is characterized in that: The first sealing strip further includes a fixing portion connected between the first sealing portion and the second sealing portion, and the first pre-positioning structure includes a first positioning hole plugged into and matched with the fixing portion to pre-position the fixing portion.

5. The connection device of the bus duct with integrated shell and protection according to claim 3 is characterized in that: The portion of the conductor extending outside the bus duct housing includes a first straight segment, a bent segment inclined outward from the center, and a second straight segment, the bent segment connects the first straight segment and the second straight segment, and the second sealing portion is arranged in parallel with the first straight segment.

6. The connection device of the bus duct with integrated shell and protection according to claim 5, characterized in that: The length of the first sealing portion is not less than the length of the second sealing portion.

7. The connecting device of the bus duct with integrated housing and protection according to claim 5, characterized in that: The second bending portion includes a first section parallel to the bending section and a second section parallel to the second straight section, and the first section is provided with heat dissipation teeth.

8. The connecting device of the bus duct with integrated housing and protection according to claim 1, characterized in that: The connector includes two connecting side plates arranged opposite to each other on the left and right, and two connecting cover plates arranged opposite to each other on the top and bottom and covering the connecting side plates. The connecting side plates include a sealing portion for sealing the gap between the ends of the two connector side plates and an overlapping portion overlapping with the surface of the connector side plates. A second sealing strip is provided between the overlapping portion and the connector side plates.

9. The connecting device of the bus duct with integrated housing and protection according to claim 8, characterized in that: The connector also includes a bolt, two nuts and two crescent-shaped elastic washers. The two crescent-shaped elastic washers are respectively located on the outer side surfaces of the connecting side plates. The two ends of the connecting side plates are bent outward to form a slot. The crescent-shaped elastic washers are installed in the slot. The bolt passes through the two crescent-shaped elastic washers and the connecting side plates. The two ends of the bolt are fixed by the nuts.

10. The connecting device of the bus duct with integrated housing and protection according to claim 1, characterized in that: A PE protective conductor is arranged in the bus duct shell, the bus duct shell is a PE structure, and the PE protective conductor and the bus duct shell are integrally formed.

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