Bus shell joint connecting structure

Abstract

The utility model relates to the GIS housing technical field, and discloses a bus housing joint connection structure comprising a housing, the housing is provided with a mounting hole, one end of the mounting hole at the inner side of the housing is in threaded connection with an inner terminal, the inner terminal is provided with a first threading hole in a penetrating manner, a first connecting ring of the inner terminal extends into the mounting hole, and a second connecting ring of the inner terminal extends into the mounting hole. A mounting hole is formed in the inner terminal, a connecting column is in threaded connection with one end, in the mounting hole, of the inner terminal, a connecting hole is formed in one end, away from the inner terminal, of the connecting column, an outer terminal is in threaded connection with the interior of the connecting hole, a second threading hole is formed in the outer terminal in a penetrating mode, and the connecting column and the inner terminal are jointly sleeved with a sealing ring. According to the sealing device, the problem that the sealing ring is difficult to install is solved, the sealing ring is arranged to be the air bag and the corrugated sealing ring, the sealing ring is convenient to install in a normal state, the sealing effect is good after the sealing ring is extruded, and installation and sealing are both considered.

Description

Technical Field

[0001] This utility model relates to the field of GIS housing technology, and more specifically, to a busbar housing connector connection structure. Background Technology

[0002] GIS high-voltage switches are crucial switching devices in the electrical systems of power plants and substations. They are filled with insulating gas to isolate voltage. Their insulation performance and sealing capability are closely related, thus requiring high precision in the manufacturing of each component and high connection performance.

[0003] Currently, when connecting GIS housing busbars on the market, two rubber rings are usually installed around the busbar. The two rubber rings seal the connection port from both the inside and outside of the housing, thereby fixing the busbar and sealing the housing at the same time. However, in order to ensure the sealing performance, the rubber rings and the connection port are interference fit, which makes it inconvenient to operate during installation and disassembly. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a busbar housing connector connection structure that is easy to install and has a good sealing effect.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A busbar housing connector connection structure includes a housing with a mounting hole. An inner terminal is threadedly connected to one end of the mounting hole on the inner side of the housing. A through-hole is formed in the inner terminal. A connecting ring of the inner terminal extends into the mounting hole. A connecting post is threadedly connected to one end of the inner terminal in the mounting hole. A connecting hole is formed at the end of the connecting post opposite to the inner terminal. An outer terminal is threadedly connected to the connecting hole. A through-hole is formed in the outer terminal. A sealing ring is fitted onto both the connecting post and the inner terminal. The sealing ring abuts against the inner wall of the mounting hole.

[0007] The present invention is further configured such that: a boss is provided on the column body of the connecting column; the sealing ring includes an air bladder; the air bladder abuts against the surface of the column body and the platform of the boss; corrugated sealing rings are connected to both sides of the air bladder; the corrugated sealing rings on both sides are respectively sleeved on the outer side of the boss and the outer side of the connecting ring; the outer sides of the air bladder and the corrugated sealing rings abut against the inner wall of the mounting hole; and the opposite ends of the corrugated sealing rings on both sides abut against the end cap of the inner terminal and the end cap of the outer terminal, respectively.

[0008] The present invention is further configured such that: a wire clamping ring is connected to one side of the wire hole facing the mounting hole, the wire clamping ring is truncated cone-shaped, and a wire clamping end is provided at one end of the column facing the inner terminal, the wire clamping end being able to abut against the wire clamping ring.

[0009] The present invention is further configured such that: a pressure groove is provided on the pressure ring, the cross-section of the pressure groove is trapezoidal, the long base of the trapezoidal pressure groove is provided on the pressure ring, a pressure ring is inserted into the pressure groove, and the pressure end abuts against the pressure ring.

[0010] The present invention is further configured such that: a pressure groove is provided at the bottom of the connecting hole, and the wire hole is connected to the pressure groove.

[0011] The present invention is further configured such that: the first end cap and the second end cap respectively abut against the inner wall and the outer wall of the outer shell; the first end cap is provided with a fixing ring, which is threadedly connected to the outer shell; the second end cap is connected with a connecting ring, which is threadedly connected to a connecting hole.

[0012] The advantages of this utility model are:

[0013] 1. The inner side of the outer shell is threaded with an inner terminal, the inner terminal is threaded with a connecting post, the connecting post is threaded with an outer terminal, and a sealing ring is fitted on the connecting post. The sealing ring has an air bladder in the middle, and corrugated sealing rings are provided on both sides of the air bladder. When the inner and outer terminals on both sides are installed in place, the corrugated sealing rings are squeezed inward. At this time, the air bladder abuts against the connecting post and the inner wall of the mounting hole. The corrugated sealing rings on both sides abut against the connecting post and the mounting hole, and the connecting ring abuts against the mounting hole, respectively. When the sealing ring is not under force, it does not fit tightly with the adjacent parts, making installation convenient. The sealing effect is improved by squeezing the sealing ring, and the sealing performance is enhanced by multiple seals.

[0014] 2. The inner terminal is equipped with a wire clamping ring and a wire clamping groove 1. The clamping ring can be clamped into the wire clamping groove 1. The wire after the cable is stripped is attached to the wire clamping ring and the wire clamping groove 1 and is pressed tightly by the clamping ring and the wire clamping end. The outer terminal and the connecting post are equipped with corresponding wire clamping groove 2 to ensure the stability of the cable connection and prevent the wire from coming off due to vibration. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of one embodiment of the present invention;

[0016] Figure 2 For along Figure 1 The cross-sectional view along line AA is shown below;

[0017] Figure 3 for Figure 2 The enlarged view of part B shown;

[0018] Figure 4 This is a schematic diagram of the sealing ring structure of this utility model;

[0019] In the diagram: 1. Outer shell; 11. Mounting hole; 2. Inner terminal; 21. End cap one; 22. Fixing ring; 23. Connecting ring one; 24. Wire hole one; 25. Wire clamping ring; 26. Wire clamping groove one; 3. Connecting post; 31. Post body; 32. Wire clamping end; 33. Boss; 34. Connecting hole; 35. Wire clamping groove two; 4. Outer terminal; 41. End cap two; 42. Connecting ring two; 43. Wire hole two; 5. Pressure ring; 6. Sealing ring; 61. Airbag; 62. Corrugated sealing ring. Detailed Implementation

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art described in this application.

[0022] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0023] Please see Figure 1-4 The present invention provides the following technical solution:

[0024] A busbar housing connector connection structure includes a housing 1 with a mounting hole 11. An inner terminal 2 is threadedly connected to one end of the mounting hole 11 on the inner side of the housing. A through-hole 24 is provided through the inner terminal 2. A connecting ring 23 of the inner terminal 2 extends into the mounting hole 11. A connecting post 3 is threadedly connected to one end of the inner terminal 2 in the mounting hole 11. A connecting hole 34 is provided at the end of the connecting post 3 away from the inner terminal 2. An outer terminal 4 is threadedly connected to the connecting hole 34. A through-hole 43 is provided through the outer terminal 4. The busbars on the inner and outer sides of the housing 1 pass through the through-hole 24 and the through-hole 43 respectively and are connected to the connecting post 3, thereby realizing the circuit connection. A sealing ring 6 is sleeved on the connecting post 3 and the inner terminal 2. The sealing ring 6 abuts against the inner wall of the mounting hole 11, thereby sealing the mounting hole 11 and ensuring the insulation of the busbar connection.

[0025] The column 31 of the connecting column 3 is provided with a boss 33. The sealing ring 6 includes an air bag 61. The air bag 61 abuts against the surface of the column 31 and the platform of the boss 33. Corrugated sealing rings 62 are connected to both sides of the air bag 61. The corrugated sealing rings 62 on both sides are respectively sleeved on the outside of the boss 33 and the outside of the connecting ring 23. The outside of the air bag 61 and the corrugated sealing rings 62 abut against the inner wall of the mounting hole 11. The opposite ends of the two corrugated sealing rings 62 abut against the end cap 21 of the inner terminal 2 and the end cap 41 of the outer terminal 4, respectively.

[0026] During installation, the airbag 61 and the corrugated sealing ring 62 fit against the inner wall of the mounting hole 11, but the compressive force is not large. Therefore, the sealing ring 6 can move easily within the mounting hole 11. When the inner terminals 2 and outer terminals 4 on both sides are installed in place, the corrugated sealing ring 62 is squeezed towards the airbag 61 from both sides, causing both the corrugated sealing ring 62 and the airbag 61 to deform to a certain extent. The sealing ring 6 deforms outward and fits tightly against the inner wall of the mounting hole 11, thereby ensuring the sealing effect and facilitating disassembly and assembly.

[0027] End cap 1 21 and end cap 2 41 respectively abut against the inner wall and outer wall of the outer shell 1. End cap 1 21 is provided with a fixing ring 22, which is threadedly connected to the outer shell 1. End cap 2 41 is connected with a connecting ring 2 42, which is threadedly connected to the connecting hole 34.

[0028] A wire clamping ring 25 is connected to the side of the wire hole 24 facing the mounting hole 11. The wire clamping ring 25 is truncated cone-shaped. A wire clamping end 32 is provided at the end of the column 31 facing the inner terminal 2. The wire clamping end 32 can abut against the wire clamping ring 25. After the busbar inside the outer shell 1 passes through the wire hole 24, the wire is stripped and attached to the wire clamping ring 25. When the connecting column 3 is rotated, the wire can be pressed tightly onto the wire clamping ring 25 through the wire clamping end 32, thereby ensuring the stability of the circuit connection.

[0029] The bottom of the connecting hole 34 is provided with a wire pressing groove 35. The wire passing hole 43 is connected to the wire pressing groove 35. Similar to the above structure, the wire stripped from the outer busbar is attached to the bottom of the wire pressing groove 35 and is pressed by the connecting ring 42 to achieve electrical connection. Preferably, the stripped wire can be passed through the bottom of the wire pressing groove 35 and extended to the wall of the wire pressing groove 35, and then pressed by the connecting ring 42. By winding the wire around a certain bend, the wire can be prevented from falling off and the connection strength can be improved.

[0030] A wire clamping groove 26 is provided on the wire clamping ring 25. The cross-section of the wire clamping groove 26 is trapezoidal. The long base of the trapezoidal wire clamping groove 26 is set on the wire clamping ring 25. A clamping ring 5 is inserted into the wire clamping groove 26. The wire clamping end 32 abuts against the clamping ring 5, allowing the wire to be extended into the wire clamping groove 26 and then clamped into the clamping ring 5. Finally, the wire clamping end 32 of the connecting post 3 clamps the clamping ring 5 to press the wire, thereby improving the connection strength of the inner busbar and ensuring the stability of the connection.

[0031] Specifically, the inner side of the outer shell 1 is threaded with an inner terminal 2, the inner terminal 2 is threaded with a connecting post 3, the connecting post 3 is threaded with an outer terminal 4, a sealing ring 6 is sleeved on the connecting post 3, the middle of the sealing ring 6 is an air bladder 61, and corrugated sealing rings 62 are provided on both sides of the air bladder 61. When the inner terminal 2 and the outer terminal 4 on both sides are installed in place, the corrugated sealing rings 62 are squeezed inward. At this time, the air bladder 61 abuts against the connecting post 3 and the inner wall of the mounting hole 11, and the corrugated sealing rings 62 on both sides abut against the connecting post 3 and the mounting hole 11 and the connecting ring 23 and the mounting hole 11, respectively. When the sealing ring 6 is not under force, it does not fit tightly with the adjacent parts, making installation convenient. Moreover, the sealing effect is improved by squeezing the sealing ring, and the sealing performance is enhanced by multiple seals.

[0032] The inner terminal 2 is provided with a wire clamping ring 25 and a wire clamping groove 26. The clamping ring 5 can be clamped in the wire clamping groove 26. The wire after the cable is stripped is attached to the wire clamping ring 25 and the wire clamping groove 26, and is clamped by the clamping ring 5 and the wire clamping end 32. The outer terminal 4 and the connecting post 3 are respectively provided with a second wire clamping groove 35, which ensures the stability of the cable connection and prevents the wire from coming off due to vibration.

[0033] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0034] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0035] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar counterparts and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A busbar housing connector connection structure, comprising a housing (1), wherein the housing (1) has a mounting hole (11), characterized in that: The mounting hole (11) is threaded to one end of the inner side of the housing with an inner terminal (2). The inner terminal (2) has a through hole (24). The connecting ring (23) of the inner terminal (2) extends into the mounting hole (11). The inner terminal (2) is threaded to one end of the mounting hole (11) with a connecting post (3). The connecting post (3) has a connecting hole (34) at the end away from the inner terminal (2). The connecting hole (34) is threaded to an outer terminal (4). The outer terminal (4) has a through hole (43). The connecting post (3) and the inner terminal (2) are fitted with a sealing ring (6). The sealing ring (6) abuts against the inner wall of the mounting hole (11).

2. The busbar housing connector connection structure according to claim 1, characterized in that: The connecting column (3) has a boss (33) on its column body (31). The sealing ring (6) includes an airbag (61). The airbag (61) abuts against the surface of the column body (31) and the platform of the boss (33). Corrugated sealing rings (62) are connected to both sides of the airbag (61). The corrugated sealing rings (62) on both sides are respectively sleeved on the outside of the boss (33) and the outside of the connecting ring (23). The outside of the airbag (61) and the corrugated sealing rings (62) abut against the inner wall of the mounting hole (11). The opposite ends of the corrugated sealing rings (62) on both sides abut against the end cap (21) of the inner terminal (2) and the end cap (41) of the outer terminal (4).

3. The busbar housing connector connection structure according to claim 2, characterized in that: A wire clamping ring (25) is connected to the side of the wire hole (24) facing the mounting hole (11). The wire clamping ring (25) is truncated cone-shaped. A wire clamping end (32) is provided at the end of the column (31) facing the inner terminal (2). The wire clamping end (32) can abut against the wire clamping ring (25).

4. The busbar housing connector connection structure according to claim 3, characterized in that: The pressure ring (25) has a pressure groove (26) with a trapezoidal cross-section. The long base of the trapezoidal pressure groove (26) is set on the pressure ring (25). A pressure ring (5) is inserted into the pressure groove (26) and the pressure end (32) abuts against the pressure ring (5).

5. The busbar housing connector connection structure according to claim 4, characterized in that: The bottom of the connecting hole (34) is provided with a pressure groove (35), and the threading hole (43) is connected to the pressure groove (35).

6. The busbar housing connector connection structure according to claim 5, characterized in that: The first end cap (21) and the second end cap (41) abut against the inner wall and outer wall of the outer shell (1) respectively. The first end cap (21) is provided with a fixing ring (22), which is threaded to the outer shell (1). The second end cap (41) is connected with a connecting ring (42), which is threaded to the connecting hole (34).

Images