Method for connecting an insulated busbar to an equipotential line in a sleeve

Abstract

This invention relates to the field of segmented connection technology for fully insulated busbars, specifically a method for connecting an insulated busbar to an equipotential line inside a sleeve. The steps include fixing a first connector to the inner wall of the insulating sleeve; connecting one end of the first connector to an equipotential spring; connecting the other end of the equipotential spring to a second connector; removing the second connector from an opening at one end of the insulating sleeve; passing the first insulated busbar through the insulating sleeve and connecting the protruding terminal of the first insulated busbar to the second connector; establishing a flexible connection between the terminals of the first and second insulated busbars; and pulling the insulating sleeve to align its center with the docking center of the two insulated busbars, ensuring the equipotential spring is constantly stretched during the pulling process. The equipotential line utilizes an equipotential spring with an elastic connection in the middle. Both ends of the equipotential spring are detachable and fixed, ensuring a reliable and stable connection and preventing scratches on the resin inner wall during sleeve insertion.

Description

Technical Field

[0001] This invention relates to the field of segmented connection technology for fully insulated busbars, specifically a method for connecting an insulated busbar to an equipotential line inside a sleeve. Background Technology

[0002] Cast-in-place insulated busbars use fully insulated shielded sleeves at segmented connections. An equipotential bonding device is required between the busbar and the sleeve, and an annular cavity exists between them. Existing equipotential bonding methods use spring-loaded contact plates. This type of connection is prone to scratching the inner wall of the resin during the sleeve insertion process. Furthermore, if there is insufficient elasticity after insertion, and the connection is not effectively made to the inner wall of the sleeve, it may not be easily detected, potentially leading to operational malfunctions. Summary of the Invention

[0003] In view of the deficiencies of the prior art, the present invention provides a method for connecting an insulated busbar to an equipotential line inside a sleeve. The equipotential line uses an equipotential spring with an elastic connection in the middle. Both ends of the equipotential spring can be detached and fixedly connected, making the connection reliable and stable, and avoiding scratching the inner wall of the resin during the process of inserting it into the sleeve.

[0004] To achieve the above objectives, the technical solution provided by this invention is a method for connecting an insulated busbar to an equipotential conductor inside a sleeve, the steps of which include: Step S100: Fix a first connector to the inner wall of the insulating sleeve. The first connector is connected to one end of the equipotential spring, and the other end of the equipotential spring is connected to a second connector. Step S200: The second connector is moved out from the opening at one end of the insulating sleeve, and the equipotential spring is stretched and maintains a gap with the inner wall of the insulating sleeve; Step S300: The first insulated busbar passes through the insulated sleeve, and the terminal protruding from the first insulated busbar is connected to the second connector; Step S400: Connect the flexible connection between the terminals of the first insulated busbar and the terminals of the second insulated busbar; Step S500: Pull the insulating sleeve so that the center of the insulating sleeve is aligned with the docking center of the two insulating busbars. There is an annular cavity between the inner wall of the insulating sleeve and the outer wall of the first insulating busbar and the outer wall of the second insulating busbar. The equipotential spring is always stretched during the pulling of the insulating sleeve. One end moves with the insulating sleeve and moves as a whole into the annular cavity, where it is inclinedly connected between the first connector and the second connector. Both the first and second insulated busbars are cast-in-place insulated busbars.

[0005] Furthermore, the specific steps of fixing the first connector on the inner wall of the insulating sleeve in step S100 include: fixing the first connector at a point halfway along the length of the inner wall of the insulating sleeve.

[0006] Furthermore, the first connector is a pre-installed wiring lug.

[0007] Furthermore, the specific steps of fixing the first connecting member to the inner wall of the insulating sleeve in step S100, and connecting the first connecting member to one end of the equipotential spring, include: welding the first connecting member to the inner wall of the insulating sleeve, and connecting the first connecting member to one end of the equipotential spring by fixing bolts.

[0008] Furthermore, the specific steps for connecting the other end of the equipotential spring to the second connector in step S100 include: the second connector is a U-shaped groove with multiple through holes arranged in a line on the U-shaped groove, and the equipotential spring rotates and sequentially passes through the multiple through holes.

[0009] Furthermore, the specific steps in step S200 of removing the second connector from one end opening of the insulating sleeve include: hooking the U-shaped groove with a hook and pulling the U-shaped groove out from one end opening of the insulating sleeve.

[0010] Furthermore, step S300 includes opening two threaded holes on the side of the terminal of the first insulated busbar.

[0011] Furthermore, the specific steps in step S300 of connecting the terminal extending from the first insulated busbar to the second connector include: aligning the mounting holes at both ends of the U-shaped groove with the two threaded holes on the side of the terminal, and tightening them with screws.

[0012] The beneficial effects of this invention are: the high-potential equipotential connection within the intermediate joint sleeve is safer and simpler, avoids traditional equipotential connection methods, eliminates any potential safety hazards, thereby ensuring product quality, ensuring reliable power supply operation of the insulated busbar, and providing simple and convenient installation components. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the insulating sleeve after step S100 is completed in one embodiment of the present invention; Figure 2 This is a schematic diagram of the structure when the two ends of the equipotential spring are respectively connected to an L-shaped connector and a second connector in one embodiment of the present invention; Figure 3 This is a partial schematic diagram showing the position of the first connecting member welded to the insulating sleeve in one embodiment of the present invention; Figure 4This is a partial schematic diagram of the connection position between the equipotential spring and the L-shaped connector in one embodiment of the present invention; Figure 5 This is a schematic diagram showing the positional relationship between the first insulated busbar and the second insulated busbar in one embodiment of the present invention; Figure 6 This is a schematic diagram of step S200 in one embodiment of the present invention; Figure 7 This is a schematic diagram showing the completion of step S300 in one embodiment of the present invention; Figure 8 This is a schematic diagram showing the completion of step S500 in one embodiment of the present invention; Figure 9 This is a schematic diagram of the flexible connection between the terminals of the first insulated busbar and the terminals of the second insulated busbar in one embodiment of the present invention; In the picture: 100. Insulating sleeve, 200, First connector; 210, First alignment hole; 300. Equipotential spring; 310. L-shaped connector; 311. Second alignment hole. 400, Second connector; 410, Through hole; 420, Mounting hole; 430, Screw. 500, First insulated busbar; 510, Terminal of the first insulated busbar; 511, Threaded hole. 600. Second insulated busbar; 610. Terminal of the second insulated busbar. 700, soft link, 800, hook. Detailed Implementation

[0014] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0015] In one embodiment of the present invention, the method for connecting the insulated busbar and the equipotential line inside the sleeve includes the following steps: See Figures 1-5 In step S100, a first connector 200 is fixed to the inner wall of the insulating sleeve 100. The first connector 200 is connected to one end of the equipotential spring 300, and the other end of the equipotential spring 300 is connected to the second connector 400.

[0016] like Figure 3As shown, in one embodiment, the specific steps of fixing the first connector 200 to the inner wall of the insulating sleeve 100 and connecting the first connector 200 to one end of the equipotential spring 300 in step S100 include: welding the first connector 200 to the inner wall of the insulating sleeve 100, and connecting the first connector 200 to one end of the equipotential spring 300 together with a fixing bolt. Specifically, an L-shaped connector 310 is welded to one end of the equipotential spring 300. The L-shaped connector 310 has a second alignment hole 311, and the second alignment hole 311 is fixed to the first connector 200 by a fixing bolt.

[0017] In one embodiment, the specific steps of fixing the first connector 200 on the inner wall of the insulating sleeve 100 in step S100 include: fixing the first connector 200 at a point halfway along the length of the inner wall of the insulating sleeve 100.

[0018] Preferably, in one embodiment, the first connector 200 is a pre-installed wiring lug. The pre-installed wiring lug is welded to the inner wall of the insulating sleeve 100, and the pre-installed wiring lug has a first alignment hole 210, and a second alignment hole 311 is used to connect with the first alignment hole 210 by a fixing bolt.

[0019] In one embodiment, the specific steps of connecting the other end of the equipotential spring 300 to the second connector 400 in step S100 include: the second connector 400 is a U-shaped groove, and multiple through holes 410 arranged in a line are opened on the U-shaped groove; the equipotential spring 300 rotates and passes through the multiple through holes 410 in sequence, and is fixed.

[0020] See Figure 6 In step S200, the second connector 400 is moved out from one end opening of the insulating sleeve 100; the equipotential spring 300 is stretched and maintains a gap with the inner wall of the insulating sleeve 100.

[0021] See Figure 7 In step S300, the first insulating busbar 500 passes through the insulating sleeve 100, and the terminal 510 of the first insulating busbar 500 extending out of the first insulating busbar is connected to the second connector 400. Step S400: A flexible connection 700 is established between the terminal 510 of the first insulated busbar and the terminal 610 of the second insulated busbar; both the first insulated busbar 500 and the second insulated busbar 600 are cast-in-place insulated busbars. See Figure 8 Step S500: Pull the insulating sleeve 100 so that the center of the insulating sleeve 100 is aligned with the docking center of the two insulating busbars. There is an annular cavity between the inner wall of the insulating sleeve 100 and the outer wall of the first insulating busbar 500 and the outer wall of the second insulating busbar 600. The equipotential spring 300 is always stretched during the pulling of the insulating sleeve 100. One end moves with the insulating sleeve 100 and moves as a whole into the annular cavity, where it is inclinedly connected between the first connector 200 and the second connector 400.

[0022] In one embodiment, the specific steps of removing the second connector 400 from the opening at one end of the insulating sleeve 100 in step S200 include: hooking the U-shaped groove with the hook 800 and pulling the U-shaped groove out from the opening at one end of the insulating sleeve 100.

[0023] like Figure 9 As shown, in one embodiment, step S300 includes opening two threaded holes 511 on the terminal side of the first insulated busbar 500.

[0024] In one embodiment, the specific steps of connecting the terminal extending from the first insulated busbar 500 to the second connector 400 in step S300 include: aligning the mounting holes 420 at both ends of the U-shaped groove with the two threaded holes 511 on the side of the terminal, and tightening them with screws 430.

[0025] The above-mentioned connection method between the insulating busbar and the equipotential line inside the sleeve adopts the form of an equipotential spring with an elastic connection in the middle. One end of the equipotential spring is detachably and fixedly connected to the first connector 200 on the insulating sleeve 100, and the other end of the equipotential spring is detachably and fixedly connected to the terminal protruding from the first insulating busbar 500 through the second connector 400. The connection is reliable and stable, and can avoid scratching the inner wall of the resin during the process of inserting the insulating sleeve 100.

[0026] The connection method between the insulated busbar and the equipotential line inside the sleeve in this embodiment is safer and simpler than the traditional equipotential connection method. It avoids any potential safety hazards, thereby ensuring product quality, reliable power supply operation of the insulated busbar, and simple structure and easy operation of the installation components.

[0027] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" a second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of a second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" a second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it can be directly on the other element or there may be an intermediate element present. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element present. The terms "vertical," "horizontal," "above," "below," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible embodiments.

Claims

1. A method for connecting an insulated busbar to an equipotential conductor inside a sleeve, characterized in that the steps include... include: Step S100: Fix a first connector to the inner wall of the insulating sleeve. The first connector is connected to one end of the equipotential spring, and the other end of the equipotential spring is connected to a second connector. Step S200: The second connector is moved out from the opening at one end of the insulating sleeve, and the equipotential spring is stretched and maintains a gap with the inner wall of the insulating sleeve; Step S300: The first insulated busbar passes through the insulated sleeve, and the terminal protruding from the first insulated busbar is connected to the second connector; Step S400: Connect the flexible connection between the terminals of the first insulated busbar and the terminals of the second insulated busbar; Step S500: Pull the insulating sleeve so that the center of the insulating sleeve is aligned with the docking center of the two insulating busbars. There is an annular cavity between the inner wall of the insulating sleeve and the outer walls of the first and second insulating busbars. The equipotential spring is always stretched during the pulling of the insulating sleeve. One end moves with the insulating sleeve and moves as a whole into the annular cavity, and is inclinedly connected between the first and second connecting members. Both the first and second insulated busbars are cast-in-place insulated busbars.

2. The method for connecting the insulated busbar and the equipotential line inside the sleeve according to claim 1, characterized in that: The specific steps for fixing the first connector on the inner wall of the insulating sleeve in step S100 include: A first connector is fixed at a point halfway along the length of the inner wall of the insulating sleeve.

3. The method for connecting the insulated busbar and the equipotential line inside the sleeve according to claim 1, characterized in that: The first connector is a pre-installed wiring lug.

4. The method for connecting the insulated busbar and the equipotential line inside the sleeve according to claim 1, characterized in that: The specific steps in step S100, which involve fixing the first connecting member to the inner wall of the insulating sleeve and connecting the first connecting member to one end of the equipotential spring, include: A first connector is welded to the inner wall of the insulating sleeve, and the first connector is connected to one end of the equipotential spring by a fixing bolt.

5. The method for connecting the insulated busbar and the equipotential line inside the sleeve according to claim 1, characterized in that: The specific steps for connecting the other end of the equipotential spring to the second connector in step S100 include: The second connector is a U-shaped groove with multiple through holes arranged in a line on it. The equipotential spring rotates and passes through the multiple through holes in sequence.

6. The method for connecting the insulated busbar and the equipotential line inside the sleeve according to claim 5, characterized in that: The specific steps in step S200 of removing the second connector from the opening at one end of the insulating sleeve include: Hook the U-shaped groove and pull it out from one end opening of the insulating sleeve.

7. The method for connecting the insulated busbar and the equipotential line inside the sleeve according to claim 5, characterized in that: Step S300 includes opening two threaded holes on the side of the terminal of the first insulated busbar.

8. The method for connecting the insulated busbar and the equipotential line inside the sleeve according to claim 7, characterized in that: The specific steps in step S300 of connecting the terminal protruding from the first insulated busbar to the second connector include: Align the mounting holes at both ends of the U-shaped groove with the two threaded holes on the side of the terminal, and tighten them with screws.

Images