Tubular bus connection method and equipment

Abstract

The invention relates to the technical field of tubular bus connection, and particularly discloses a tubular bus connection method and equipment, and the aluminum tubular bus connection equipment comprises a connector, a conductive plate, a power mechanism, a conductive lubricating mechanism, an inert gas protection mechanism and a sealing clamping mechanism. When the two aluminum tube buses are quickly connected and fixed, conductive plates can be padded on the end conductors of the two aluminum tube buses, so that the end conductors of the two aluminum tube buses can be more stably connected. The conductive lubricating mechanism can smear a conductive lubricant between the aluminum tube bus end conductor and the conductive plate, so that the electric conduction is more stable and reliable, and the inert gas protection mechanism can fill inert gas in the connection position in the plugging process, so that the electric conduction at the connection position is in the protection environment of the inert gas, and the plugging effect of the aluminum tube bus is improved. And the sealing clamping mechanism can seal the joint after the inert gas is filled, and can lock and fix the aluminum tube bus, so that the connection of the aluminum tube bus is more stable.

Description

Technical Field

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

[0002] Aluminum tube busbar is a conductive material widely used in power systems. Due to its superior conductivity, light weight and corrosion resistance, it has become a common choice in high-voltage and ultra-high-voltage transmission lines and substations. The main function of the aluminum tube busbar is to transmit current from one electrical device or device to another, ensuring efficient and stable transmission of electricity. It is commonly used for power supply and connection of high-capacity power systems, distribution devices, and industrial power equipment, and is particularly suitable for large current transmission and long-distance power transmission. Due to the characteristics of aluminum material, aluminum tube busbar can not only effectively reduce power loss, but also significantly reduce the maintenance cost of electrical equipment and improve the reliability of power grid operation.

[0003] Aluminum tube busbars are usually made of high-quality aluminum materials, with a tubular structure and good mechanical strength and conductivity. In order to ensure the stability of power transmission, the application of aluminum tube busbars in power systems requires that multiple sections of busbars be connected to each other. Traditional aluminum tube busbar connection methods are mainly achieved through bolt fastening, crimping or welding. In the bolted connection structure, the connector usually has a joint with a bolt hole, and the two busbars are tightly fixed together by bolts. The crimping method uses a special crimping tool to strongly compress the busbar end to ensure close contact between the conductors and achieve conductivity. Welding heats and melts the solder to firmly connect the aluminum tube busbars. Although these connection methods can achieve reliable current transmission to a certain extent, they also have problems such as complex operation and low efficiency, and the connection is easily affected by the external environment.

[0004] In some special cases, the connection of the aluminum tube busbar is temporary, such as at construction sites, emergency power supply, equipment testing or maintenance. The temporary connection of the aluminum tube busbar is used for short-term power supply and needs to be disassembled after the task is completed. At this time, the convenience and detachability of the connection become particularly important. However, during the connection process of the aluminum tube busbar, the unstable contact of the conductor at the end of the busbar may lead to poor electrical conductivity, which in turn causes a decrease in power transmission efficiency and even electrical loss. In addition, environmental factors at the connection, such as oxidation, dust, and water vapor, may also affect the conductivity of the contact surface, resulting in current instability and heating at the connection site. Therefore, the existing aluminum tube busbar connection method urgently needs to be improved to ensure that the conductive performance is stable and reliable during temporary connection and disassembly, while reducing the interference of external factors and improving the safety and service life of the system. Summary of the invention

[0005] In order to improve the stability of the busbar end conductor connection while making the aluminum tube busbar easy to install and remove, the present application provides a tube busbar connection method and device.

[0006] The present application provides a tubular busbar connection device, which adopts the following technical solution: A tube busbar connection device, used for electrically connecting the end conductors of adjacent aluminum tube busbars, comprising a connector, wherein the connector is provided with a clamping cavity and a connecting cavity for plugging the aluminum tube busbar and the end conductor of the aluminum tube busbar near the end, wherein two conductive plates connected to the corresponding end conductors of the aluminum tube busbar are movably provided in the connecting cavity, and the two conductive plates can be spliced ​​to each other to form a cross section adapted to the end conductor of the aluminum tube busbar; The connectors outside the card connection cavity and the connection cavity are respectively provided with: A power mechanism, used for driving the two conductive plates to be inserted into the connection cavity or to be retracted from the connection cavity into the connector; A conductive lubricating mechanism, used for applying conductive lubricant to the side wall of the corresponding conductive plate; An inert gas protection mechanism, used for performing inert gas sealing on the connection between the two aluminum tube busbar end conductors and the conductive plate; A sealed clamping mechanism, used to clamp and fix the aluminum tube busbar and place the conductor at the end of the aluminum tube busbar in a sealed environment when plugged in; The power mechanism, the conductive lubrication mechanism, the inert gas protection mechanism and the sealing clamping mechanism are all symmetrically arranged in two groups with respect to the clamping cavity and the connecting cavity; When the two aluminum tube busbars are synchronously inserted into the clamping cavity, the conductor at the end of the aluminum tube busbar drives the two conductive plates to move toward each other through the power mechanism, and the conductive lubrication mechanism and the inert gas protection mechanism respectively apply conductive lubricant to both sides of the conductive plate and fill the connecting cavity where the conductive plate is located with inert gas, and then the sealing clamping mechanism clamps the aluminum tube busbar and keeps the conductor at the end of the aluminum tube busbar sealed.

[0007] By adopting the above technical solution, when the two aluminum tube busbars are synchronously inserted into the clamping cavity, the conductor at the end of the aluminum tube busbar drives the two conductive plates to move toward each other through the power mechanism, and the conductive lubrication mechanism and the inert gas protection mechanism respectively apply conductive lubricant to both sides of the conductive plate and fill the connection cavity where the conductive plate is located with inert gas, and then the sealing clamping mechanism clamps the aluminum tube busbar and keeps the conductor at the end of the aluminum tube busbar sealed, so that while the two aluminum tube busbars are quickly connected and fixed, the conductive plates can be placed on the conductors at the ends of the two aluminum tube busbars, so that the conductors at the ends of the two aluminum tube busbars can be connected more stably; The conductive lubrication mechanism can apply conductive lubricant between the conductor at the end of the aluminum tube busbar and the conductive plate, making the electrical conduction more stable and reliable, while the inert gas protection mechanism can fill the connection with inert gas during the plug-in process, so that the electrical conduction at the connection is in a protective environment of the inert gas, and the sealing clamping mechanism can seal the connection after the inert gas is filled, and can lock and fix the aluminum tube busbar, making the connection of the aluminum tube busbar more stable.

[0008] The above structure can automatically create an enclosed space with stable electrical conductivity and filled with inert gas when two aluminum tube busbars are plugged in. During the splicing of the two conductive plates, the power mechanism will automatically drive the conductive lubrication mechanism to pre-apply conductive lubricant to both sides of the conductive plate, so that the subsequent electrical connection between the conductive plate and the conductor at the end of the aluminum tube busbar is more stable. During this process, the power mechanism can also enable the inert gas protection mechanism to automatically fill the connection space between the conductive plate and the conductor at the end of the aluminum tube busbar with inert gas, so that the electrical conductor of the conductive plate and the conductor at the end of the aluminum tube busbar is more stable. At the same time, the power mechanism can also drive the sealing clamping mechanism to complete the fixed connection between the aluminum tube busbar and the connector. Not only that, it can also cooperate with the inert gas protection mechanism to create a closed environment filled with inert gas, which greatly improves the stability of the connection and ensures the convenience of installation and disassembly of the connection. It can achieve rapid installation and disassembly while achieving stable electrical conductivity at the connection.

[0009] Optionally, the power mechanism includes a transmission wheel, a driving gear, a first driven gear, a pull rod and a first rack, wherein the transmission wheel is rotatably installed in the connector and partially extends into the connecting cavity, and can be rotatably abutted against the side wall of the conductor at the end of the aluminum tube busbar when the aluminum tube busbar extends into the connecting cavity; The driving gear is coaxially arranged on a part of the wheel surface of the transmission wheel and is lower than the wheel surface of the transmission wheel; the first driven gear is rotatably installed in the connector and meshes with the driving gear; the pull rod is movably installed in the connector, and one end of the pull rod is connected to the conductive plate, and the other end extends out of the connector; The first rack is disposed on the outer wall of the pull rod along the length direction and meshes with the first driven gear.

[0010] By adopting the above technical solution, when the aluminum tube busbar is plugged in, the conductor at the end of the aluminum tube busbar will drive the transmission wheel to rotate, the transmission wheel drives the driving gear to rotate, the driving gear drives the first driven gear to rotate, the first driven gear drives the first rack to move, and the first rack drives the pull rod to move, so that the pull rod drives the conductive plate to move into the connection cavity, so that the two conductive plates can be spliced ​​into a conductive plate that is compatible with the conductor at the end of the aluminum tube busbar. When the aluminum tube busbar is plugged in, it will also drive the conductive lubrication mechanism to apply conductive lubricant to the surface of the conductive plate, so that the conductive plate can be more stably electrically conductive with the conductor at the end of the aluminum tube busbar. At the same time, the inert gas protection mechanism can fill the connection cavity with inert gas, and the sealing clamping mechanism can seal the filled connection cavity, and connect and fix the aluminum tube busbar to achieve stable electrical conduction of the aluminum tube busbar.

[0011] Optionally, the conductive lubrication mechanism includes a self-lubricating component and a synchronization component. The self-lubricating component can apply conductive lubricant to both sides of the conductive plate when the conductive plate moves toward the connecting cavity, and the synchronization component can achieve synchronization and transmission connection between the transmission wheel and the self-lubricating component.

[0012] By adopting the above technical solution, when the aluminum tube busbar is plugged in, it will drive the driving wheel to rotate, and the driving wheel will drive the synchronous component to move, so that the synchronous component drives the self-lubricating component to automatically apply conductive lubricant, making the electrical connection between the conductor at the end of the aluminum tube busbar and the conductive plate more stable.

[0013] Optionally, the self-lubricating component includes an outer cylinder, an inner cylinder, a blocking block, a blocking plate, a liquid storage tank, a liquid inlet pipe and a liquid outlet pipe, the inner cylinder is coaxially rotatably installed in the outer cylinder, and there is a gap between the two, the blocking block is fixed to the inner wall of the outer cylinder and is slidably sealed with the inner cylinder, the blocking plate is fixed to the outer wall of the inner cylinder and is slidably sealed with the inner wall of the outer cylinder, and the inner cylinder, the outer cylinder, the blocking block and the blocking plate are enclosed to form two sealed chambers; One end of the liquid inlet pipe is communicated with the inner cavity of the liquid storage bin, and the other end is communicated with one of the sealed cavities. A one-way channel is provided on the inner cylinder, and one side of the one-way channel is located in the sealed cavity. A conductive lubricant is installed in the inner cylinder, and through holes for the conductive lubricant to pass through are provided on the inner cylinder and the outer cylinder. The axial end of the inner cylinder is transmission-connected with the synchronization component, and the through holes on the inner cylinder and the outer cylinder can be communicated with each other during the rotation process. One end of the liquid outlet pipe is communicated with the through hole on the outer cylinder, and the other end faces the moving path of the conductive plate.

[0014] By adopting the above technical solution, when the synchronous component drives the inner cylinder to rotate, the volume of the enclosed space between the blocking block and the blocking plate decreases, and the pressure increases. At this time, the one-way channel opens. At the same time, the through holes on the inner cylinder and the outer cylinder rotate to a state of interconnection. At this time, the pressurized gas presses the conductive lubricant in the inner cylinder out of the liquid outlet pipe through the through hole, and finally smears it on the conductive plate. When the aluminum tube busbar needs to be disassembled, the inner cylinder will rotate in the opposite direction. At this time, the conductive lubricant in the liquid storage tank enters the space between the blocking block and the blocking plate through the liquid inlet pipe. When the pressure in the space between the blocking block and the blocking plate increases, the conductive lubricant will enter the inner cylinder through the one-way channel for storage.

[0015] Optionally, the synchronization assembly includes an active synchronization wheel, a second rack and a driven synchronization wheel, the active synchronization wheel is coaxially fixed with the transmission wheel, the driven synchronization wheel is coaxially fixed with the inner cylinder shaft end, and the second rack is respectively meshed with the active synchronization wheel and the driven synchronization wheel.

[0016] By adopting the above technical solution, when the aluminum tube busbar is plugged in, the transmission wheel drives the active synchronous wheel to rotate, and the active synchronous wheel drives the driven synchronous wheel to rotate through the second rack, thereby driving the inner tube to rotate.

[0017] Optionally, the inert gas protection mechanism includes a pressure cylinder, a first sealing plate, a second sealing plate, an elastic telescopic component, a wedge block and a connecting rod, the pressure cylinder is fixed in the connector and is arranged near an opening at one end of the pull rod, the first sealing plate and the second sealing plate are slidingly sealed in the pressure cylinder, and an inert gas is installed in the closed cavity between the first sealing plate and the second sealing plate, an air supply pipe is connected on the outer wall of the pressure cylinder between the first sealing plate and the second sealing plate, a one-way valve is arranged in the air supply pipe, and the end of the air supply pipe away from the pressure cylinder extends into the connecting cavity; The elastic telescopic component is disposed between the first sealing plate and the second sealing plate, and is connected to the plate surfaces of the first sealing plate and the second sealing plate respectively, and the second sealing plate is located on a side of the first sealing plate close to the pull rod; The wedge block is fixed to a side of the second sealing plate away from the first sealing plate, and a wedge-shaped inclined surface is provided on a side close to the pull rod. The connecting rod is fixed to the pull rod, and an end away from the pull rod is slidably engaged with the wedge-shaped inclined surface of the wedge block. When the pull rod drives the connecting rod to move toward the direction approaching the connecting cavity, the connecting rod pushes the wedge block to move toward the direction away from the pull rod.

[0018] By adopting the above technical solution, when the aluminum tube busbar is plugged in, the pull rod moves toward the direction close to the connecting cavity, the pull rod drives the connecting rod to move, and the connecting rod pushes the wedge-shaped inclined surface of the wedge block, so that the second sealing plate compresses the elastic telescopic component. At this time, the space between the first sealing plate and the second sealing plate becomes smaller, and the pressure increases. The inert gas stored between the first sealing plate and the second sealing plate enters the connecting cavity through the air supply pipe, and the impurity gas in the connecting cavity is discharged, so that the connection between the conductor at the end of the aluminum tube busbar and the conductive plate is in an inert gas protection environment, thereby reducing the influence of impurity gas on electrical conductivity.

[0019] Optionally, the elastic telescopic component includes a first telescopic rod, a second telescopic rod and a first elastic member, the ends of the first telescopic rod and the second telescopic rod are slidably inserted, and the ends away from each other are respectively fixedly connected to the first sealing plate and the second sealing plate, and the first elastic member is sleeved outside the first telescopic rod and the second telescopic rod, and the ends are respectively abutted against the first sealing plate and the second sealing plate.

[0020] By adopting the above technical solution, when the second sealing plate compresses the first elastic member, the total length of the first telescopic rod and the second telescopic rod is reduced, so the inert gas between the first sealing plate and the second sealing plate will be pressed into the connecting cavity.

[0021] Optionally, the sealing clamping mechanism includes a second elastic member and an annular airbag, the second elastic member is located in the pneumatic cylinder and one end of the second elastic member abuts against the inner wall of the end of the pneumatic cylinder, and the other end abuts against the surface of the first sealing plate, and the stiffness coefficient of the second elastic member is greater than the stiffness coefficient of the first elastic member.

[0022] By adopting the above technical solution, when the first elastic member continues to be compressed, the compressed length of the first elastic member is difficult to change, and the second elastic member is compressed. At this time, the space between the first sealing plate and the air pressure cylinder is reduced, and the pressure is increased. The air in this space is pressed into the annular airbag, so that the annular airbag is clamped and fixed to the aluminum tube busbar, thereby achieving locking and fixation of the aluminum tube busbar.

[0023] Optionally, a pull handle is provided at the end of the pull rod extending out of the connector, and the pull rod is slidably and sealedly connected to the outer shell of the connector.

[0024] By adopting the above technical solution, the pull handle can facilitate pulling out the pull rod when disassembling the aluminum tube busbar, and the connection between the pull rod and the connector maintains a sliding seal, so that the inert gas can be retained in the connection cavity as much as possible during the plug-in process of the aluminum tube busbar, making the electrical conduction between the end conductor of the aluminum tube busbar and the conductive plate more stable.

[0025] The present application also discloses a method for connecting a tube busbar, which uses the tube busbar connecting device described above to connect the tube busbars, and includes the following steps: S1: Place the connector at the connection of the two aluminum tube busbars, so that the ends of the two aluminum tube busbars face the two ports of the connector, and then pull the handle away from the connector housing. The handle drives the two conductive plates to move away from each other through the pull rod. Pull the handle until the pull rod cannot be pulled any further. S2: Insert the two aluminum tube busbar end conductors from the connector's snap-in cavity, and simultaneously insert the two aluminum tube busbar end conductors from the snap-in cavity into the connection cavity at the same angle and speed until it becomes difficult to continue inserting; S3: Check the connection stability between the two aluminum tube busbars and the connector, and pull out the two aluminum tube busbars. If the connection between the two aluminum tube busbars and the connector is stable and does not shake, check step S4. If the connection between the two aluminum tube busbars and the connector is unstable, repeat step S1. S4: Check whether the depths of the two aluminum tube busbars inserted into the connector are the same. If they are the same, the connection is completed. If they are not the same, repeat step S1.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the two aluminum tube busbars are synchronously inserted into the clamping cavity, the conductor at the end of the aluminum tube busbar drives the two conductive plates to move toward each other through the power mechanism, and the conductive lubrication mechanism and the inert gas protection mechanism apply conductive lubricant to both sides of the conductive plate and fill the connection cavity where the conductive plate is located with inert gas, and then the sealing clamping mechanism clamps the aluminum tube busbar and keeps the conductor at the end of the aluminum tube busbar sealed, so that the two aluminum tube busbars can be quickly connected and fixed, and the conductive plates can be placed on the conductors at the ends of the two aluminum tube busbars, so that the conductors at the ends of the two aluminum tube busbars can be connected more stably; 2. The conductive lubrication mechanism can apply conductive lubricant between the conductor at the end of the aluminum tube busbar and the conductive plate to make the electrical conduction more stable and reliable, and the inert gas protection mechanism can fill the connection with inert gas during the plugging process, so that the electrical conduction of the connection is in the protection environment of the inert gas, and the sealing clamping mechanism can seal the connection after the inert gas is filled, and can lock and fix the aluminum tube busbar, making the connection of the aluminum tube busbar more stable; 3. The above structure can automatically create a closed space with stable electrical conductivity and filled with inert gas when two aluminum tube busbars are plugged in. During the splicing of the two conductive plates, the power mechanism will automatically drive the conductive lubrication mechanism to pre-apply conductive lubricant to both sides of the conductive plate, so that the subsequent electrical connection between the conductive plate and the conductor at the end of the aluminum tube busbar is more stable; in this process, the power mechanism can also enable the inert gas protection mechanism to automatically fill the connection space between the conductive plate and the conductor at the end of the aluminum tube busbar with inert gas, so that the electrical conductor of the conductive plate and the conductor at the end of the aluminum tube busbar is more stable; at the same time, the power mechanism can also drive the sealing clamping mechanism to complete the fixed connection between the aluminum tube busbar and the connector. Not only that, it can also cooperate with the inert gas protection mechanism to create a closed environment filled with inert gas, which greatly improves the stability of the connection and ensures the convenience of installation and disassembly of the connection, and can achieve rapid installation and disassembly while achieving stable electrical conductivity at the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a schematic diagram of the overall structure when the tube busbar connecting device is connected to the aluminum tube busbar in the embodiment of the present application; Figure 2 yes Figure 1 Schematic diagram of the internal structure of the middle tube busbar connection equipment; Figure 3 yes Figure 2 Schematic diagram of part of the internal structure of the central tube busbar connection equipment; Figure 4 yes Figure 3 Structural schematic diagram of the power mechanism and conductive lubrication mechanism; Figure 5 yes Figure 4 The structural diagram of the self-lubricating component in the middle; Figure 6 yes Figure 3 Structural schematic diagram of the inert gas protection mechanism and the sealing clamping mechanism.

[0029] Figure numerals: 1, aluminum tube busbar; 2, connector; 21, clamping cavity; 22, connecting cavity; 23, conductive plate; 3, power mechanism; 31, transmission wheel; 32, driving gear; 33, first driven gear; 34, pull rod; 341, pull handle; 35, first rack; 4, conductive lubrication mechanism; 41, self-lubricating component; 411, outer cylinder; 412, inner cylinder; 413, blocking block; 414, blocking plate; 415, liquid storage tank; 416, liquid inlet pipe; 417, liquid outlet pipe; 418, seal Sealing chamber; 42, synchronization component; 421, active synchronization wheel; 422, second rack; 423, driven synchronization wheel; 5, inert gas protection mechanism; 51, air pressure cylinder; 52, first sealing plate; 53, second sealing plate; 54, elastic telescopic component; 541, first telescopic rod; 542, second telescopic rod; 543, first elastic member; 55, wedge block; 56, connecting rod; 57, air supply pipe; 58, inflation pipe; 6, sealing clamping mechanism; 61, second elastic member; 62, annular airbag. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-6 , further details of this application are given.

[0031] The embodiment of the present application discloses a tubular busbar connection device.

[0032] A tube busbar connection device, used to electrically connect the end conductors of adjacent aluminum tube busbars 1, referring to Figure 1 and Figure 2 , including a connector 2, wherein the connector 2 is provided with a card connection cavity 21 and a connection cavity 22 for plugging in the aluminum tube busbar 1 and the end conductor of the aluminum tube busbar 1, and two conductive plates 23 connected to the corresponding end conductors of the aluminum tube busbar 1 are movably provided in the connection cavity 22, and the two conductive plates 23 can be spliced ​​with each other to form a cross-section adapted to the end conductor of the aluminum tube busbar 1.

[0033] The connector 2 outside the clamping cavity 21 and the connecting cavity 22 is respectively provided with a power mechanism 3 for driving the two conductive plates 23 to be inserted into the connecting cavity 22 or to be recovered from the connecting cavity 22 into the connector 2, a conductive lubrication mechanism 4 for applying conductive lubricant to the side walls of the corresponding conductive plates 23, a mechanism 5 for sealing the connection between the end conductors of the two aluminum tube busbars 1 and the conductive plates 23 with inert gas and placing them in an inert gas protection, and a sealing clamping mechanism 6 for clamping and fixing the aluminum tube busbar 1 and making the end conductors of the aluminum tube busbar 1 in a sealed environment when plugged in.

[0034] The power mechanism 3, the conductive lubrication mechanism 4, the inert gas protection mechanism 5 and the sealing clamping mechanism 6 are all symmetrically arranged in two groups with respect to the clamping cavity 21 and the connecting cavity 22; When the two aluminum tube busbars 1 are synchronously inserted into the clamping cavity 21, the conductors at the ends of the aluminum tube busbars 1 drive the two conductive plates 23 to move toward each other through the power mechanism 3, and the conductive lubrication mechanism 4 and the inert gas protection mechanism 5 apply conductive lubricant to both sides of the conductive plates 23 and fill the connecting cavity 22 where the conductive plates 23 are located with inert gas, and then the sealing clamping mechanism 6 clamps the aluminum tube busbars 1 and keeps the conductors at the ends of the aluminum tube busbars 1 sealed.

[0035] Reference Figure 2 , Figure 3 and Figure 4 The power mechanism 3 includes a transmission wheel 31, a driving gear 32, a first driven gear 33, a pull rod 34 and a first rack 35. The transmission wheel 31 is rotatably installed in the connector 2 and partially extends into the connecting cavity 22. When the aluminum tube busbar 1 extends into the connecting cavity 22, it can be rotatably abutted against the side wall of the conductor at the end of the aluminum tube busbar 1.

[0036] The driving gear 32 is coaxially arranged on a part of the wheel surface of the transmission wheel 31 and is lower than the wheel surface of the transmission wheel 31. The first driven gear 33 is rotatably installed in the connector 2 and meshes with the driving gear 32. The pull rod 34 is movably installed in the connector 2, and one end is connected to the conductive plate 23, and the other end extends out of the connector 2. The end of the pull rod 34 extending out of the connector 2 is provided with a pull handle 341, and the pull rod 34 is slidably and sealedly connected to the outer shell of the connector 2.

[0037] The first rack 35 is disposed on the outer wall of the pull rod 34 along the length direction and meshes with the first driven gear 33 .

[0038] When the aluminum tube busbar 1 is plugged in, the conductor at the end of the aluminum tube busbar 1 drives the transmission wheel 31 to rotate, the transmission wheel 31 drives the driving gear 32 to rotate, the driving gear 32 drives the first driven gear 33 to rotate, the first driven gear 33 drives the first rack 35 to move, and the first rack 35 drives the pull rod 34 to move, so that the pull rod 34 drives the conductive plate 23 to move into the connecting cavity 22, so that the two conductive plates 23 can be spliced ​​into a conductive plate 23 that is compatible with the conductor at the end of the aluminum tube busbar 1.

[0039] When the aluminum tube busbar 1 is plugged in, the conductive lubrication mechanism 4 will be driven to apply conductive lubricant to the surface of the conductive plate 23, so that the conductive plate 23 can be more stably electrically connected with the conductor at the end of the aluminum tube busbar 1. At the same time, the inert gas protection mechanism 5 can fill the connecting cavity 22 with inert gas, and the sealing clamping mechanism 6 can seal the filled connecting cavity 22 and connect and fix the aluminum tube busbar 1 to achieve stable electrical conduction of the aluminum tube busbar 1.

[0040] Reference Figure 3 and Figure 4The conductive lubrication mechanism 4 includes a self-lubricating component 41 and a synchronous component 42. The self-lubricating component 41 can apply conductive lubricant to both sides of the conductive plate 23 when the conductive plate 23 moves toward the connecting cavity 22. The synchronous component 42 can realize the synchronization and transmission connection between the transmission wheel 31 and the self-lubricating component 41.

[0041] Reference Figure 4 and Figure 5 The self-lubricating component 41 includes an outer cylinder 411, an inner cylinder 412, a sealing block 413, a sealing plate 414, a liquid storage tank 415, a liquid inlet pipe 416 and a liquid outlet pipe 417. The inner cylinder 412 is coaxially rotatably installed in the outer cylinder 411, and there is a gap between the two. The sealing block 413 is fixed to the inner wall of the outer cylinder 411 and is slidably sealed with the inner cylinder 412. The sealing plate 414 is fixed to the outer wall of the inner cylinder 412 and is slidably sealed with the inner wall of the outer cylinder 411. Two sealed cavities 418 are enclosed by the inner cylinder 412, the outer cylinder 411, the sealing block 413 and the sealing plate 414.

[0042] One end of the liquid inlet pipe 416 is connected to the inner cavity of the liquid storage tank 415, and the other end is connected to one of the sealed cavities 418. A one-way channel is provided on the inner cylinder 412, and one side of the one-way channel is located in this sealed cavity 418. A conductive lubricant is installed in the inner cylinder 412, and through holes for the conductive lubricant to pass through are provided on the inner cylinder 412 and the outer cylinder 411. The axial end of the inner cylinder 412 is transmission-connected to the synchronization component 42, and the through holes on the inner cylinder 412 and the outer cylinder 411 can be connected to each other during the rotation process. One end of the liquid outlet pipe 417 is connected to the through hole on the outer cylinder 411, and the other end faces the moving path of the conductive plate 23.

[0043] When the synchronous component 42 drives the inner cylinder 412 to rotate, the volume of the enclosed space between the blocking block 413 and the blocking plate 414 decreases, and the pressure increases. At this time, the one-way channel opens. At the same time, the through holes on the inner cylinder 412 and the outer cylinder 411 rotate to a state of interconnection. At this time, the pressurized gas presses the conductive lubricant in the inner cylinder 412 out of the liquid outlet pipe 417 through the through hole, and finally smears it on the conductive plate 23. When the aluminum tube busbar 1 needs to be disassembled, the inner cylinder 412 will rotate in the opposite direction. At this time, the conductive lubricant in the liquid storage tank 415 enters the space between the blocking block 413 and the blocking plate 414 through the liquid inlet pipe 416. When the pressure of the space between the blocking block 413 and the blocking plate 414 increases, the conductive lubricant will enter the inner cylinder 412 through the one-way channel for storage.

[0044] Reference Figure 4 and Figure 5The synchronous assembly 42 includes an active synchronous wheel 421, a second rack 422 and a driven synchronous wheel 423. The active synchronous wheel 421 is coaxially fixed with the transmission wheel 31, and the driven synchronous wheel 423 is coaxially fixed with the shaft end of the inner cylinder 412. The second rack 422 is meshed with the active synchronous wheel 421 and the driven synchronous wheel 423 respectively. When the aluminum tube busbar 1 is plugged in, the transmission wheel 31 drives the active synchronous wheel 421 to rotate, and the active synchronous wheel 421 drives the driven synchronous wheel 423 to rotate through the second rack 422, thereby driving the inner cylinder 412 to rotate.

[0045] In a gas-feasible embodiment, the conductive lubrication mechanism 4 can also be set in the form of a sponge plate or ball discharge. When the conductive plate 23 passes by, the conductive plate 23 squeezes out the conductive lubricant in the sponge plate to achieve coating of the conductive plate 23, or drives the ball to rotate to discharge the conductive lubricant to achieve coating of the conductive lubricant on the conductive plate 23.

[0046] Reference Figure 4 and Figure 6 The inert gas protection mechanism 5 includes a pressure cylinder 51, a first sealing plate 52, a second sealing plate 53, an elastic telescopic component 54, a wedge block 55 and a connecting rod 56. The pressure cylinder 51 is fixed in the connector 2 and is provided near the end opening of the pull rod 34. The first sealing plate 52 and the second sealing plate 53 are provided in the pressure cylinder 51 in a sliding and sealing manner, and an inert gas is installed in the closed cavity between the first sealing plate 52 and the second sealing plate 53. An air supply pipe 57 is connected on the outer wall of the pressure cylinder 51 between the first sealing plate 52 and the second sealing plate 53. A one-way valve is provided in the air supply pipe 57, and the end of the air supply pipe 57 away from the pressure cylinder 51 extends into the connecting cavity 22. In order to add inert gas when it is used again, an air filling pipe 58 is also provided on the outer wall of the pressure cylinder 51. The air filling pipe 58 extends to be flush with the outer surface of the connector 2, and a one-way valve is provided in the air filling pipe 58 to prevent the inert gas from escaping from the pressure cylinder 51.

[0047] The elastic expansion component 54 is disposed between the first sealing plate 52 and the second sealing plate 53 and is connected to the plate surfaces of the first sealing plate 52 and the second sealing plate 53 respectively. The second sealing plate 53 is located on a side of the first sealing plate 52 close to the pull rod 34 .

[0048] The wedge block 55 is fixed to the side of the second sealing plate 53 away from the first sealing plate 52 , and a wedge-shaped inclined surface is provided on the side close to the pull rod 34 . The connecting rod 56 is fixed to the pull rod 34 , and the end away from the pull rod 34 is slidably engaged with the wedge-shaped inclined surface of the wedge block 55 .

[0049] When the pull rod 34 drives the connecting rod 56 to move toward the connecting cavity 22 , the connecting rod 56 pushes the wedge block 55 to move toward the direction away from the pull rod 34 .

[0050] When the aluminum tube busbar 1 is plugged in, the pull rod 34 moves toward the connecting cavity 22, and the pull rod 34 drives the connecting rod 56 to move. The connecting rod 56 pushes the wedge-shaped inclined surface of the wedge block 55, so that the second sealing plate 53 compresses the elastic telescopic component 54. At this time, the space between the first sealing plate 52 and the second sealing plate 53 becomes smaller, and the pressure increases. The inert gas stored between the first sealing plate 52 and the second sealing plate 53 enters the connecting cavity 22 through the air supply pipe 57, and the impurity gas in the connecting cavity 22 is discharged, so that the connection between the end conductor of the aluminum tube busbar 1 and the conductive plate 23 is in an inert gas protection environment, reducing the influence of the impurity gas on electrical conduction.

[0051] Reference Figure 4 and Figure 6 The elastic telescopic assembly 54 includes a first telescopic rod 541, a second telescopic rod 542 and a first elastic member 543. The ends of the first telescopic rod 541 and the second telescopic rod 542 are slidably plugged, and the ends away from each other are fixedly connected to the first sealing plate 52 and the second sealing plate 53 respectively. The first elastic member 543 is a spring. The first elastic member 543 is sleeved outside the first telescopic rod 541 and the second telescopic rod 542, and the ends are respectively abutted against the first sealing plate 52 and the second sealing plate 53. When the second sealing plate 53 compresses the first elastic member 543, the total length of the first telescopic rod 541 and the second telescopic rod 542 is reduced, so the inert gas between the first sealing plate 52 and the second sealing plate 53 will be pressed into the connecting cavity 22.

[0052] Reference Figure 4 and Figure 6 The sealing clamping mechanism 6 includes a second elastic member 61 and an annular airbag 62. The second elastic member 61 also adopts a spring. The second elastic member 61 is located in the air cylinder 51 and one end of the second elastic member 61 abuts against the inner wall of the end of the air cylinder 51, and the other end abuts against the plate surface of the first sealing plate 52. The stiffness coefficient of the second elastic member 61 is greater than the stiffness coefficient of the first elastic member 543. When the first elastic member 543 is continuously compressed, the compressed length of the first elastic member 543 is difficult to change, and the second elastic member 61 is compressed. At this time, the space between the first sealing plate 52 and the air cylinder 51 is reduced, and the pressure is increased. The air in this space is pressed into the annular airbag 62, so that the annular airbag 62 clamps and fixes the aluminum tube busbar 1, thereby locking and fixing the aluminum tube busbar 1.

[0053] The implementation principle of a tube busbar connection device in the embodiment of the present application is as follows: when two aluminum tube busbars 1 are synchronously inserted into the clamping cavity 21, the conductor at the end of the aluminum tube busbar 1 drives the two conductive plates 23 to move toward each other through the power mechanism 3, and the conductive lubrication mechanism 4 and the inert gas protection mechanism 5 apply conductive lubricant to both sides of the conductive plate 23 and fill the connection cavity 22 where the conductive plate 23 is located with inert gas, and then the sealing clamping mechanism 6 clamps the aluminum tube busbar 1 and keeps the conductor at the end of the aluminum tube busbar 1 sealed, so that the conductive plates 23 can be placed on the conductors at the ends of the two aluminum tube busbars 1 while the two aluminum tube busbars 1 are quickly connected and fixed, so that the conductors at the ends of the two aluminum tube busbars 1 can be more stably connected; The conductive lubrication mechanism 4 can apply conductive lubricant between the end conductor of the aluminum tube busbar 1 and the conductive plate 23, so that the electrical conduction is more stable and reliable, and the inert gas protection mechanism 5 can fill the connection with inert gas during the plug-in process, so that the electrical conduction of the connection is in a protective environment of the inert gas, and the sealing clamping mechanism 6 can seal the connection after the inert gas is filled, and can lock and fix the aluminum tube busbar 1, so that the connection of the aluminum tube busbar 1 is more stable.

[0054] The above structure can automatically create a closed space with stable electrical conduction and filled with inert gas when two aluminum tube busbars 1 are plugged in. During the splicing process of the two conductive plates 23, the power mechanism 3 will automatically drive the conductive lubrication mechanism 4 to pre-apply conductive lubricant to both sides of the conductive plate 23, so that the subsequent electrical connection between the conductive plate 23 and the end conductor of the aluminum tube busbar 1 is more stable. In this process, the power mechanism 3 can also enable the inert gas protection mechanism 5 to automatically fill the connection space between the conductive plate 23 and the end conductor of the aluminum tube busbar 1 with inert gas, so that the electrical conductor of the conductive plate 23 and the end conductor of the aluminum tube busbar 1 is more stable. At the same time, the power mechanism 3 can also drive the sealing clamping mechanism 6 to complete the fixed connection between the aluminum tube busbar 1 and the connector 2. Not only that, it can also cooperate with the inert gas protection mechanism 5 to create a closed environment filled with inert gas, which greatly improves the stability of the connection and ensures the convenience of installation and disassembly of the connection. It can achieve rapid installation and disassembly while achieving stable electrical conduction at the connection.

[0055] The embodiment of the present application also discloses a method for connecting a tube busbar, which is connected by using the tube busbar connecting device described above, and includes the following steps: S1: Place the connector (2) at the connection of the two aluminum tube busbars (1), so that the ends of the two aluminum tube busbars (1) face the two ports of the connector (2), and then pull the pull handle (341) in a direction away from the housing of the connector (2). The pull handle (341) drives the two conductive plates (23) to move in a direction of separation from each other through the pull rod (34), and pull the pull handle (341) until the pull rod (34) cannot be pulled any more; S2: inserting the two end conductors of the aluminum tube busbar (1) from the clamping cavity (21) of the connector (2), and simultaneously making the two end conductors of the aluminum tube busbar (1) enter from the clamping cavity (21) into the connection cavity (22) at the same angle and speed until further insertion becomes difficult; S3: Check the connection stability between the two aluminum tube bus bars (1) and the connector (2), and pull out the two aluminum tube bus bars (1). If the connection between the two aluminum tube bus bars (1) and the connector (2) is stable and does not shake, check step S4. If the connection between the two aluminum tube bus bars (1) and the connector (2) is unstable, repeat step S1. S4: Check whether the depths of the two aluminum tube busbars (1) inserted into the connector (2) are the same. If they are the same, the connection is complete. If they are not the same, repeat step S1.

[0056] The above are all optional embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A tube busbar connection device, used for electrically connecting the end conductors of adjacent aluminum tube busbars (1), characterized in that: The connector (2) comprises a connection cavity (21) and a connection cavity (22) for inserting the aluminum tube busbar (1) and the end conductor of the aluminum tube busbar (1) at a position close to the end of the connector (2); two conductive plates (23) corresponding to the end conductors of the aluminum tube busbar (1) are movably arranged in the connection cavity (22); the two conductive plates (23) can be spliced ​​together to form a cross-section that matches the end conductor of the aluminum tube busbar (1); The connector (2) outside the card connection cavity (21) and the connection cavity (22) is respectively provided with: A power mechanism (3) for driving the two conductive plates (23) to be inserted into the connection cavity (22) or to be retracted from the connection cavity (22) into the connector (2); A conductive lubricating mechanism (4) for applying conductive lubricant to the side wall of the corresponding conductive plate (23); An inert gas protection mechanism (5) is used to perform inert gas sealing on the connection between the two end conductors of the aluminum tube busbars (1) and the conductive plate (23); A sealed clamping mechanism (6) is used to clamp and fix the aluminum tube busbar (1) and to place the conductor at the end of the aluminum tube busbar (1) in a sealed environment when plugged in; The power mechanism (3), the conductive lubrication mechanism (4), the inert gas protection mechanism (5) and the sealing clamping mechanism (6) are all symmetrically arranged in two groups with respect to the clamping cavity (21) and the connecting cavity (22); When the two aluminum tube busbars (1) are synchronously inserted into the clamping cavity (21), the end conductors of the aluminum tube busbars (1) drive the two conductive plates (23) to move toward each other through the power mechanism (3), the conductive lubrication mechanism (4) and the inert gas protection mechanism (5) respectively apply conductive lubricant to both sides of the conductive plates (23) and fill the connection cavity (22) where the conductive plates (23) are located with inert gas, and then the sealing clamping mechanism (6) clamps the aluminum tube busbars (1) and keeps the end conductors of the aluminum tube busbars (1) sealed.

2. A tubular busbar connection device according to claim 1, characterized in that: The power mechanism (3) comprises a transmission wheel (31), a driving gear (32), a first driven gear (33), a pull rod (34) and a first rack (35); the transmission wheel (31) is rotatably mounted in the connector (2) and partially extends into the connection cavity (22), and can be rotatably abutted against the side wall of the conductor at the end of the aluminum tube busbar (1) when the aluminum tube busbar (1) extends into the connection cavity (22); The driving gear (32) is coaxially arranged on a part of the wheel surface of the transmission wheel (31) and is lower than the wheel surface of the transmission wheel (31); the first driven gear (33) is rotatably installed in the connector (2) and meshes with the driving gear (32); the pull rod (34) is movably installed in the connector (2), and one end is connected to the conductive plate (23), and the other end extends out of the connector (2); The first rack (35) is arranged on the outer wall of the pull rod (34) along the length direction and meshes with the first driven gear (33).

3. A tubular busbar connection device according to claim 2, characterized in that: The conductive lubrication mechanism (4) comprises a self-lubricating component (41) and a synchronous component (42); the self-lubricating component (41) can apply conductive lubricant to both sides of the conductive plate (23) when the conductive plate (23) moves in a direction close to the connecting cavity (22); and the synchronous component (42) can achieve synchronization and transmission connection between the transmission wheel (31) and the self-lubricating component (41).

4. A tubular busbar connection device according to claim 3, characterized in that: The self-lubricating component (41) comprises an outer cylinder (411), an inner cylinder (412), a blocking block (413), a blocking plate (414), a liquid storage bin (415), a liquid inlet pipe (416) and a liquid outlet pipe (417); the inner cylinder (412) is coaxially rotatably mounted in the outer cylinder (411), and a gap exists between the two; the blocking block (413) is fixed to the inner wall of the outer cylinder (411) and is slidably sealed with the inner cylinder (412); the blocking plate (414) is fixed to the outer wall of the inner cylinder (412) and is slidably sealed with the inner wall of the outer cylinder (411); and two sealed cavities (418) are enclosed between the inner cylinder (412), the outer cylinder (411), the blocking block (413) and the blocking plate (414); One end of the liquid inlet pipe (416) is in communication with the inner cavity of the liquid storage bin (415), and the other end is in communication with one of the sealed cavities (418). A one-way channel is provided on the inner cylinder (412), and one side of the one-way channel is located in the sealed cavity (418). A conductive lubricant is installed in the inner cylinder (412), and both the inner cylinder (412) and the outer cylinder (411) are provided with through holes for the conductive lubricant to pass through. The shaft end of the inner cylinder (412) is transmission-connected with the synchronization component (42), and the through holes on the inner cylinder (412) and the outer cylinder (411) can be interconnected during the rotation process. One end of the liquid outlet pipe (417) is in communication with the through hole on the outer cylinder (411), and the other end faces the moving path of the conductive plate (23).

5. A tubular busbar connection device according to claim 4, characterized in that: The synchronization component (42) comprises an active synchronization wheel (421), a second rack (422) and a driven synchronization wheel (423); the active synchronization wheel (421) is coaxially fixed to the transmission wheel (31); the driven synchronization wheel (423) is coaxially fixed to the axial end of the inner cylinder (412); and the second rack (422) is respectively meshed with the active synchronization wheel (421) and the driven synchronization wheel (423).

6. A tubular busbar connection device according to claim 2, characterized in that: The inert gas protection mechanism (5) comprises an air cylinder (51), a first sealing plate (52), a second sealing plate (53), an elastic telescopic component (54), a wedge block (55) and a connecting rod (56); the air cylinder (51) is fixed in the connector (2) and is arranged near one end opening of the pull rod (34); the first sealing plate (52) and the second sealing plate (53) are slidingly sealed in the air cylinder (51); an inert gas is installed in the closed cavity between the first sealing plate (52) and the second sealing plate (53); an air supply pipe (57) is connected on the outer wall of the air cylinder (51) between the first sealing plate (52) and the second sealing plate (53); a one-way valve is arranged in the air supply pipe (57); and the end of the air supply pipe (57) away from the air cylinder (51) extends into the connecting cavity (22); The elastic telescopic component (54) is arranged between the first sealing plate (52) and the second sealing plate (53), and is connected to the plate surfaces of the first sealing plate (52) and the second sealing plate (53) respectively; the second sealing plate (53) is located on a side of the first sealing plate (52) close to the pull rod (34); The wedge block (55) is fixed to the side of the second sealing plate (53) facing away from the first sealing plate (52), and a wedge-shaped inclined surface is provided on the side close to the pull rod (34); the connecting rod (56) is fixed to the pull rod (34), and one end away from the pull rod (34) is slidably engaged with the wedge-shaped inclined surface of the wedge block (55); When the pull rod (34) drives the connecting rod (56) to move in a direction close to the connecting cavity (22), the connecting rod (56) pushes the wedge block (55) to move in a direction away from the pull rod (34).

7. A tubular busbar connection device according to claim 6, characterized in that: The elastic telescopic component (54) comprises a first telescopic rod (541), a second telescopic rod (542) and a first elastic member (543); the ends of the first telescopic rod (541) and the second telescopic rod (542) are slidably plugged in, and the ends away from each other are fixedly connected to the first sealing plate (52) and the second sealing plate (53), respectively; the first elastic member (543) is sleeved outside the first telescopic rod (541) and the second telescopic rod (542), and the ends thereof are respectively in contact with the first sealing plate (52) and the second sealing plate (53).

8. The tubular busbar connection device according to claim 7, characterized in that: The sealing clamping mechanism (6) includes a second elastic member (61) and an annular air bag (62), wherein the second elastic member (61) is located inside the air cylinder (51) and one end of the second elastic member abuts against the inner wall of the end of the air cylinder (51), and the other end abuts against the surface of the first sealing plate (52), and the stiffness coefficient of the second elastic member (61) is greater than the stiffness coefficient of the first elastic member (543).

9. The tubular busbar connection device according to claim 2, characterized in that: The end of the pull rod (34) extending out of the connector (2) is provided with a pull handle (341), and the pull rod (34) is slidably and hermetically connected to the outer shell of the connector (2).

10. A method for connecting a tubular busbar, using a tubular busbar connecting device as claimed in any one of claims 1 to 9 for connection, characterized in that: The following steps are involved: S1: Place the connector (2) at the connection of the two aluminum tube busbars (1), so that the ends of the two aluminum tube busbars (1) face the two ports of the connector (2), and then pull the pull handle (341) in a direction away from the housing of the connector (2). The pull handle (341) drives the two conductive plates (23) to move in a direction of separation from each other through the pull rod (34), and pull the pull handle (341) until the pull rod (34) cannot be pulled any more; S2: inserting the two end conductors of the aluminum tube busbar (1) from the clamping cavity (21) of the connector (2), and simultaneously making the two end conductors of the aluminum tube busbar (1) enter from the clamping cavity (21) into the connection cavity (22) at the same angle and speed until further insertion becomes difficult; S3: Check the connection stability between the two aluminum tube bus bars (1) and the connector (2), and pull out the two aluminum tube bus bars (1). If the connection between the two aluminum tube bus bars (1) and the connector (2) is stable and does not shake, check step S4. If the connection between the two aluminum tube bus bars (1) and the connector (2) is unstable, repeat step S1. S4: Check whether the depths of the two aluminum tube busbars (1) inserted into the connector (2) are the same. If they are the same, the connection is complete. If they are not the same, repeat step S1.

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