A detachable intelligent lightning arrester

Abstract

This invention provides a detachable intelligent surge arrester, comprising an arrester base, a connecting copper busbar, an arrester body, a stationary connector, a moving connector, a grounding base, and a grounding crossarm. The top of the arrester base is fixed to one end of the connecting copper busbar, and the bottom is fixed to one end of the grounding crossarm. A stationary connector is fixed to the other end of the connecting copper busbar, and it is located on the same side of the arrester base as the other end of the grounding crossarm. The grounding crossarm includes two crossbars, both fixed at the same height to the bottom of the arrester base, with a certain opening reserved between their ends furthest from the arrester base. The arrester body is located between the connecting copper busbar and the grounding crossarm, with its bottom end installed in the reserved opening via the grounding base, and its top end connected to the stationary connector via the moving connector. If an external force causes the grounding base to disengage from the reserved opening, the moving and stationary connectors automatically disengage, allowing the arrester body to be disassembled and replaced. Implementing this invention solves the problem of requiring power outages for replacement of damaged existing surge arresters.

Description

Technical Field

[0001] This invention relates to the field of power distribution line protection technology, and in particular to a detachable intelligent surge arrester. Background Technology

[0002] A surge arrester is an important electrical device for overvoltage protection and lightning protection. Once the voltage rises to the specified operating voltage, the surge arrester operates, limiting the magnitude of the voltage rise in the power grid to a certain level, thereby protecting the equipment insulation to the level it can withstand. However, when the resistor valve of the surge arrester ages and loses its protective function, the power grid loses its protective barrier.

[0003] Currently, surge arresters commonly used in power distribution lines require live-line work or power outages for replacement after damage due to their inconvenient connection structure, leading to increased costs and reduced power supply reliability. Therefore, it is necessary to provide a new surge arrester that solves the problem of requiring power outages for replacement after damage to existing surge arresters. Summary of the Invention

[0004] The technical problem to be solved by the embodiments of the present invention is to provide a detachable intelligent surge arrester, which can solve the problem that existing surge arresters need to be replaced after a power outage.

[0005] To address the aforementioned technical problems, embodiments of the present invention provide a detachable intelligent surge arrester, comprising an arrester base, a connecting copper busbar, and an arrester body, as well as a static connector, a dynamic connector, a grounding base, and a grounding crossarm, all made of conductive metal; wherein,

[0006] The top end of the surge arrester base is fixed to one end of the connecting copper busbar, and the bottom end is fixed to one end of the grounding crossarm;

[0007] The other end of the connecting copper busbar is fixed with the static connector, and is located on the same side of the arrester base as the other end of the grounding crossarm.

[0008] The grounding crossarm includes two crossbars; the two crossbars are fixed at the same height to the bottom end of the surge arrester base, and a certain opening is reserved between the two ends away from the surge arrester base for placing the grounding seat;

[0009] The surge arrester body is located between the connecting copper busbar and the grounding crossarm. The grounding seat is fixed at its bottom end and installed in the opening reserved by the two crossbars in the grounding crossarm through the grounding seat. The moving joint is fixed at its top end and forms an up-and-down movable connection with the stationary joint fixed on the connecting copper busbar through the moving joint.

[0010] If, under the action of external force, the grounding seat fixed to the surge arrester body disengages from the reserved opening of the two crossbars in the grounding crossarm, then under the action of downward pulling force, the moving joint of the surge arrester body moves downward and disengages from the stationary joint, thereby realizing the disassembly and replacement of the surge arrester body.

[0011] The stationary joint is a box-shaped structure with its opening facing downwards, while the moving joint is a solid cylinder; wherein,

[0012] The static connector has a fixing position on the bottom wall of the outer shell that is fixed to the other end of the connecting copper busbar, and multiple sets of countersunk holes of different heights are formed on the inner side wall of the shell; wherein, each set of countersunk holes consists of multiple countersunk holes, and each countersunk hole is equipped with a corresponding contact finger spring for squeezing the moving connector.

[0013] One end of the moving connector is embedded in the housing of the stationary connector and is squeezed and held by the contact finger spring, while the other end is fixed to the top of the surge arrester body.

[0014] The fixing position on the bottom wall of the outer shell of the static connector is an internal threaded hole, which is threadedly connected to the bolt that passes through the first through hole on the other end of the connecting copper busbar, so as to fix the static connector to the connecting copper busbar.

[0015] The moving joint has an external thread at one end facing the surge arrester body, and is threadedly connected to the connecting hardware with the internal thread hole at the top of the surge arrester body, so as to fix the moving joint to the surge arrester body.

[0016] The connecting copper busbar has a second through hole at one end facing the surge arrester base; wherein...

[0017] After the bolt is inserted into the second through hole, it enters the connecting hardware with the internal threaded hole at the top of the surge arrester base for threaded connection, so as to fix the connecting copper busbar to the surge arrester base.

[0018] The two crossbars are of equal length and height, and each crossbar is bent into two opposing arc-shaped portions at the end away from the arrester base; the gap between the two arc-shaped portions is the opening reserved for the two crossbars.

[0019] The two crossbars are fixed at the bottom of the surge arrester base at the same height via a connecting copper busbar and two bolts; wherein,

[0020] The two crossbars are provided with two opposite mounting holes at the end near the arrester base, and the center points of the two mounting holes are on the same straight line.

[0021] The adapter copper busbar is L-shaped and includes interconnected horizontal connecting pieces and vertical connecting pieces; wherein, the horizontal connecting piece is provided with a third through hole and the vertical connecting piece is provided with a fourth through hole;

[0022] One of the two bolts passes through the third through hole of the horizontal connecting piece on the adapter copper busbar and is threadedly connected to the connecting hardware with the internal thread hole at the bottom of the surge arrester base, so as to fix the adapter copper busbar to the surge arrester base.

[0023] The adapter copper busbar is fixed to the two crossbars by simultaneously inserting one of the two bolts into the fourth through hole of the vertical connecting piece on the adapter copper busbar and the two opposite mounting holes on the two crossbars.

[0024] One end of the grounding base is fixed to the bottom end of the surge arrester body, and the other end has a protrusion for installation in the reserved opening of the two crossbars; wherein the radial area of ​​the protrusion is larger than the reserved opening area of ​​the two crossbars.

[0025] The grounding base has an external thread at one end facing the surge arrester body, and is threadedly connected to a connecting hardware with an internal thread hole at the bottom of the surge arrester body, so as to fix the grounding base to the surge arrester body.

[0026] Implementing the embodiments of the present invention has the following beneficial effects:

[0027] This invention utilizes external force to disengage the grounding base on the surge arrester body from the reserved opening of the grounding crossarm. By using the gravity of the surge arrester body, the moving joint is automatically driven downward and separated from the stationary joint, enabling rapid disassembly and replacement of the surge arrester body. This allows for replacement of the surge arrester without power interruption, further improving power supply reliability and saving replacement costs. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of the present invention.

[0029] Figure 1 A plan view of a detachable intelligent surge arrester provided for an embodiment of the present invention;

[0030] Figure 2 for Figure 1 Exploded view;

[0031] Figure 3 for Figure 2 Enlarged view of the stationary joint;

[0032] Figure 4 for Figure 2 Top view of the grounding crossarm;

[0033] Figure 5 for Figure 2 Right view of the intermediate copper busbar;

[0034] In the diagram, 1-Surge arrester base, 11-Connecting hardware installed inside the surge arrester base, 2-Connecting copper busbar, 21-Second through hole, 22-First through hole, 3-Bolt, 4-Static joint, 41-Fixed position, 42-Counterhead, 43-Contact finger spring, 5-Dynamic joint, 6-Surge arrester body, 61-Connecting hardware installed inside the surge arrester body, 7-Grounding crossarm, 71-Horizontal bar, 711-Mounting hole, 712-Arc-shaped part, 713-Opening, 8-Grounding base, 81-Protrusion, 9-Adapter copper busbar, 91-Horizontal connecting piece, 911-Third through hole, 92-Vertical connecting piece, 921-Fourth through hole. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.

[0036] like Figures 1 to 5 As shown in the figure, a detachable intelligent surge arrester is proposed in an embodiment of the present invention, including a surge arrester base 1, a connecting copper busbar 2, and a surge arrester body 6, as well as a static connector 4, a dynamic connector 5, a grounding base 8, and a grounding crossarm 7, all made of conductive metal; wherein,

[0037] The top end of the surge arrester base 1 is fixed to one end of the connecting copper busbar 2, and the bottom end is fixed to one end of the grounding crossarm 7;

[0038] The other end of the connecting copper busbar 2 is fixed with a static connector 4, and is located on the same side of the surge arrester base 1 as the other end of the grounding crossarm 7 (e.g., Figure 1 (as shown on the right side);

[0039] The grounding crossarm 7 includes two crossbars 71; the two crossbars 71 are fixed at the bottom of the surge arrester base 1 at the same height, and a certain opening 713 is reserved between the two ends away from the surge arrester base 1 for placing the grounding seat 8.

[0040] The surge arrester body 6 is located between the connecting copper busbar 2 and the grounding crossarm 7. Its bottom end is fixed with a grounding seat 8 and is installed in the opening 713 reserved by the two crossbars 71 in the grounding crossarm 7 through the grounding seat 8. Its top end is fixed with a moving joint 5 and forms an up-down movable connection with the stationary joint 4 fixed on the connecting copper busbar 2 through the moving joint 5.

[0041] If, under the action of external force, the grounding seat 8 fixed to the surge arrester body 6 is disengaged from the reserved opening 713 of the two crossbars 71 in the grounding crossarm 7, then under the action of downward pulling force, the moving joint 5 connected to the surge arrester body 6 will move downward and disengage from the stationary joint 4, thereby realizing the rapid disassembly and replacement of the surge arrester body 6.

[0042] Since the top of the surge arrester base 1 is connected to the power transmission line and the bottom is grounded, and the surge arrester body 6 is an electrical device used to protect electrical equipment from high transient overvoltage hazards and limit the follow current time and amplitude, the surge arrester body 6 is normally under high voltage insulation. Therefore, as long as the surge arrester body 6 is not operated during thunderstorms, the risk of electric shock can be avoided, and the surge arrester body 6 can be replaced without power outages if it is damaged.

[0043] It should be noted that in the intelligent surge arrester of the present invention, the top and bottom of each component are defined with reference to the installation ground, with the end facing the ground being designated as the bottom and the end away from the ground being designated as the top.

[0044] In this embodiment of the invention, the surge arrester base 1 and the surge arrester body 6 are mainly fixedly connected by connecting copper busbar 2 and grounding crossarm 7.

[0045] Top section: A second through hole 21 is formed at the end of the connecting copper busbar 2 facing the surge arrester base 1. After the bolt 3 is inserted into the second through hole 21, it enters the connecting hardware 11 with the internal thread hole at the top of the surge arrester base 1 for threaded connection, thereby fixing the connecting copper busbar 2 to the surge arrester base 1. At the same time, a first through hole 22 is formed at the end of the connecting copper busbar 2 away from the surge arrester base 1. After the bolt 3 is inserted into the first through hole 22, it enters the fixing position 41 (i.e., internal thread hole) formed on the bottom wall of the outer casing of the stationary connector 4 for threaded connection, thereby fixing the connecting copper busbar 2 to the stationary connector 4.

[0046] At this time, the stationary connector 4 is a box with its opening facing downwards. Multiple sets of countersunk holes 42 with different heights are formed on the inner side wall of the box. Each set of countersunk holes consists of multiple countersunk holes 42, and each countersunk hole 42 is equipped with a corresponding contact spring 43 for pressing the moving connector 5. The moving connector 5 is a solid column. One end of it is embedded in the box of the stationary connector 4 and is pressed and held by the contact spring 43 (i.e., connected through the contact spring 43 in the stationary connector 4). The other end is formed with an external thread facing the surge arrester body 6 and is threadedly connected to the connecting hardware 61 with the internal thread hole at the top of the surge arrester body 6, so as to fix the moving connector 5 to the surge arrester body 6.

[0047] Bottom section: The grounding crossarm 7 consists of two crossbars 71 of equal length and height. One end of these two crossbars 71 is fixed to the bottom of the surge arrester base 1 at the same height via a copper busbar 9 and two bolts 3. At this time, the two crossbars 71 are respectively provided with two opposite mounting holes 711 at the end near the surge arrester base 1, and the center points of the two mounting holes 711 are on the same straight line; the adapter copper busbar 9 is L-shaped and includes interconnected horizontal connecting pieces 91 and vertical connecting pieces 92; the horizontal connecting piece 91 is provided with a third through hole 911, and the vertical connecting piece 92 is provided with a fourth through hole 921; one of the two bolts 3 passes through the third through hole 911 of the horizontal connecting piece 91 on the adapter copper busbar 9 and is threadedly connected to the connecting hardware 11 with the internal threaded hole at the bottom of the surge arrester base 1 to fix the adapter copper busbar 2 to the surge arrester base 1; the other of the two bolts 3 is simultaneously inserted into the fourth through hole 921 of the vertical connecting piece 92 on the adapter copper busbar 9 and the two opposite mounting holes 711 on the two crossbars 71 to lock the adapter copper busbar 2 to fix the two crossbars 71.

[0048] The two crossbars 71 are bent into two opposing arc-shaped portions 712 at the ends away from the arrester base 1, and the gap between the two arc-shaped portions 712 (such as a circular slot) is the opening 713 reserved for the two crossbars 71. The grounding seat 8 is installed through the opening 713 of the slot to fix the arrester body 6. At this time, the end of the grounding seat 8 facing the arrester body 6 has an external thread, which is threaded to the connecting hardware 61 with the internal thread hole at the bottom of the arrester body 6 to fix the grounding seat 8 to the arrester body 6. At the same time, the end of the grounding seat 8 away from the arrester body 6 has a protrusion 81 for installation in the opening 713 reserved for the two crossbars 71, and the radial area of ​​the protrusion 81 should be larger than the opening area reserved for the two crossbars 71, so that the arrester body 6 can be anchored on the grounding crossarm 7.

[0049] Operation process: Loosen the bolts 3 that simultaneously pass through the fourth through hole 921 of the vertical connecting piece 92 on the adapter copper busbar 9 and the two opposite mounting holes 711 on the two crossbars 71, so that the opening 713 of the two crossbars 71 is further increased. With the arrester base 1 as the longitudinal axis, use a special operating tool to rotate one of the two crossbars 71 in the grounding crossarm 7 clockwise by a certain angle (such as rotating downwards by 120 degrees). The grounding seat 8 can be moved laterally, so that the grounding seat 8 is separated from the opening 713 reserved by the two crossbars 71 in the grounding crossarm 7. Then, using the gravity of the arrester body 6, the moving connector 5 is automatically driven to move downwards and separate from the stationary connector 4, so as to realize the quick disassembly and replacement of the arrester body 6 without power outage.

[0050] In this embodiment of the invention, the surge arrester base 1 serves a positioning function; the connecting copper busbar 2 serves a current guiding function; the bolt 3 serves a fixing function; the stationary connector 4 has a structure similar to a plum blossom contact, which cooperates with the moving connector 5 to serve a movable connection function; the surge arrester body 6 serves to leak lightning current and provide support; the grounding seat 8 serves to fix, connect, and support; the adapter copper busbar 9 serves a connecting function; and the grounding crossarm 7 supports the grounding seat 8 and provides grounding, allowing it to rotate and enabling quick disassembly of the surge arrester body 6.

[0051] Implementing the embodiments of the present invention has the following beneficial effects:

[0052] This invention utilizes external force to disengage the grounding base on the surge arrester body from the reserved opening of the grounding crossarm. By using the gravity of the surge arrester body, the moving joint is automatically driven downward and separated from the stationary joint, enabling rapid disassembly and replacement of the surge arrester body. This allows for replacement of the surge arrester without power interruption, further improving power supply reliability and saving replacement costs.

[0053] The above description discloses only preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A detachable intelligent surge arrester, characterized in that, This includes the surge arrester base, connecting copper busbars, and surge arrester body, as well as static joints, dynamic joints, grounding bases, and grounding crossarms, all made of conductive metal. The top end of the surge arrester base is fixed to one end of the connecting copper busbar, and the bottom end is fixed to one end of the grounding crossarm; The other end of the connecting copper busbar is fixed with the static connector, and is located on the same side of the arrester base as the other end of the grounding crossarm. The grounding crossarm includes two crossbars; the two crossbars are fixed at the same height to the bottom end of the surge arrester base, and a certain opening is reserved between the two ends away from the surge arrester base for placing the grounding seat; The surge arrester body is located between the connecting copper busbar and the grounding crossarm. The grounding seat is fixed at its bottom end and installed in the opening reserved by the two crossbars in the grounding crossarm through the grounding seat. The moving joint is fixed at its top end and forms an up-and-down movable connection with the stationary joint fixed on the connecting copper busbar through the moving joint. If, under the action of external force, the grounding seat fixed to the surge arrester body disengages from the reserved opening of the two crossbars in the grounding crossarm, then under the action of downward pulling force, the moving joint of the surge arrester body moves downward and disengages from the stationary joint, thereby realizing the disassembly and replacement of the surge arrester body.

2. The detachable intelligent surge arrester as described in claim 1, characterized in that, The stationary joint is a box-shaped structure with its opening facing downwards, and the moving joint is a solid cylinder; wherein The static connector has a fixing position on the bottom wall of the outer shell that is fixed to the other end of the connecting copper busbar, and multiple sets of countersunk holes of different heights are formed on the inner side wall of the shell; wherein, each set of countersunk holes consists of multiple countersunk holes, and each countersunk hole is equipped with a corresponding contact finger spring for squeezing the moving connector. One end of the moving connector is embedded in the housing of the stationary connector and is squeezed and held by the contact finger spring, while the other end is fixed to the top of the surge arrester body.

3. The detachable intelligent surge arrester as described in claim 2, characterized in that, The fixing position on the bottom wall of the outer shell of the static connector is an internal threaded hole, which is threadedly connected to the bolt that passes through the first through hole on the other end of the connecting copper busbar, so as to fix the static connector to the connecting copper busbar. The moving joint has an external thread at one end facing the surge arrester body, and is threadedly connected to the connecting hardware with the internal thread hole at the top of the surge arrester body, so as to fix the moving joint to the surge arrester body.

4. The detachable intelligent surge arrester as described in claim 3, characterized in that, A second through hole is formed at the end of the connecting copper busbar facing the surge arrester base; wherein... After the bolt is inserted into the second through hole, it enters the connecting hardware with the internal threaded hole at the top of the surge arrester base for threaded connection, so as to fix the connecting copper busbar to the surge arrester base.

5. The detachable intelligent surge arrester as described in claim 4, characterized in that, The two crossbars are of equal length and height, and each of the two crossbars is bent into two opposing arc-shaped portions at the end away from the arrester base; wherein the gap between the two arc-shaped portions is the opening reserved for the two crossbars.

6. The detachable intelligent surge arrester as described in claim 5, characterized in that, The two crossbars are fixed at the bottom of the surge arrester base at the same height via a connecting copper busbar and two bolts; wherein, The two crossbars are provided with two opposite mounting holes at the end near the arrester base, and the center points of the two mounting holes are on the same straight line. The adapter copper busbar is L-shaped and includes interconnected horizontal connecting pieces and vertical connecting pieces; wherein, the horizontal connecting piece is provided with a third through hole and the vertical connecting piece is provided with a fourth through hole; One of the two bolts passes through the third through hole of the horizontal connecting piece on the adapter copper busbar and is threadedly connected to the connecting hardware with the internal thread hole at the bottom of the surge arrester base, so as to fix the adapter copper busbar to the surge arrester base. The adapter copper busbar is fixed to the two crossbars by simultaneously inserting one of the two bolts into the fourth through hole of the vertical connecting piece on the adapter copper busbar and the two opposite mounting holes on the two crossbars.

7. The detachable intelligent surge arrester as described in claim 6, characterized in that, One end of the grounding base is fixed to the bottom end of the surge arrester body, and the other end has a protrusion for installation in the reserved opening of the two crossbars; wherein the radial area of ​​the protrusion is larger than the reserved opening area of ​​the two crossbars.

8. The detachable intelligent surge arrester as described in claim 7, characterized in that, The grounding base has an external thread at one end facing the surge arrester body, and is threadedly connected to the connecting hardware with the internal thread hole at the bottom of the surge arrester body, so as to fix the grounding base to the surge arrester body.

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