Inner cone terminal
By setting up an adapter between the stress cone and the sleeve of the inner cone terminal, the problem of adapting sleeves of different sizes is solved, the structural reliability and cost saving of the inner cone terminal are achieved, and a variety of non-standard sleeves are adapted to , solve the problems of waste of resources and high development costs in the existing technology.
Patent Information
- Application Number
- CN202323637820.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-28
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2033-12-28
AI Technical Summary
Due to the differences in insulation environment and rated current of different switch cabinets, the existing inner cone plug-in terminals have different casing sizes, which cannot be adapted to the standard size inner cone, resulting in waste of resources and increased development costs.
Design an inner cone terminal, by setting an adapter between the stress cone and the sleeve, the standard stress cone can be connected to a variety of non-standard sleeves, including connecting parts, adapter parts and sleeves, using cables, The structures of the connector, conductive part, limiting groove, spring contact finger, fastening hole and stop sleeve ensure structural reliability and adaptability.
The reliability of the standard inner cone terminal structure and the adaptation of a variety of non-standard sleeves are achieved, saving resources and development costs, and improving the stability of the entire inner cone terminal.
Smart Images
Figure CN222191817U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of high-voltage cable accessories, in particular to an inner cone terminal. Background Art
[0002] The inner cone plug-in terminal is usually used in conjunction with the inner cone insulating bushing for power transmission and transformation lines below 42kV, and is used in conjunction with C-GIS switchgear and transformers in indoor and outdoor environments. Even for inner cone bushings of the same voltage level, the size of the bushing will be different due to the different insulation environment of the switchgear or the rated current. This causes the structure of the inner cone plug-in terminal to change accordingly, making it impossible for existing bushings to adapt to standard-sized inner cones, wasting resources and development costs. Utility Model Content
[0003] The main purpose of the utility model is to provide an inner cone terminal, aiming to ensure the reliability of the inner cone terminal structure while saving resources and development costs.
[0004] To achieve the above-mentioned purpose, the utility model provides an inner cone terminal, comprising a connecting portion and a stress cone surrounding the outer wall of the connecting portion;
[0005] An adapting portion, the adapting portion surrounding the outer wall of the stress cone;
[0006] A sleeve is disposed around the connecting portion and an outer wall of the adapting portion.
[0007] Optionally, the connecting portion includes a cable, a connecting body and a conductive portion.
[0008] A connection groove is provided at one end of the conductive portion facing the cable, and the connector is arranged in the connection groove;
[0009] A fixing groove is axially arranged inside the connector, and the cable further comprises a wire core, which is inserted into the fixing groove to be connected to the wall of the fixing groove;
[0010] The sleeve is arranged around the outer wall of the connecting groove.
[0011] Optionally, a limiting groove is further provided on the inner wall of the connecting groove, and a spring contact finger is further provided between the connecting body and the conductive part, and the spring contact finger is arranged in the limiting groove.
[0012] Optionally, the connector is provided with a fastening hole in the radial direction, the fastening hole is communicated with the fixing groove, a fastener is provided in the fastening hole, and one end of the fastener facing the wire core abuts against the wire core.
[0013] Optionally, the fastening hole is a threaded hole, and the fastener is a fastening bolt.
[0014] Optionally, there are multiple fastening holes, and the multiple fastening holes are distributed at intervals on the connector.
[0015] Optionally, a stop sleeve is further provided between the connector and the cable.
[0016] Optionally, the adapting portion comprises a filling portion, a first fixing portion and a second fixing portion, and the filling portion is located between the stress cone and the sleeve;
[0017] The first fixing portion is located at an end of the filling portion away from the connector and extends toward the axis;
[0018] The second fixing portion is connected to the first fixing portion and extends in an axial direction away from the connecting body. The filling portion, the first fixing portion and the second fixing portion are all arranged around the outer wall of the stress cone.
[0019] Optionally, the inner cone terminal further comprises a limiting portion, and the limiting portion is located at an end of the sleeve and the filling portion away from the connector.
[0020] Optionally, the inner cone terminal further includes a fixing member, which passes through the limiting portion and the equipment housing and is detachably connected to the sleeve.
[0021] A technical solution of the utility model is to set an adapter between the stress cone and the sleeve of the inner cone terminal. Such an arrangement allows the standard inner cone to be connected with a variety of non-standard inner cone sleeves through the adapter, thereby saving resources and development costs while ensuring the reliability of the entire inner cone terminal structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0023] Figure 1 It is a cross-sectional view of an embodiment of the inner cone terminal of the utility model.
[0024] Figure 2 for Figure 1 A magnified schematic diagram of center A.
[0025] Figure 3 It is a three-dimensional structural schematic diagram of the connection between the connector and the cable of the utility model.
[0026] Figure 4 yes Figure 3 Cross-sectional view of .
[0027] Description of Figure Numbers:
[0028] 1. Connecting part; 11. Conductive part; 111. Connecting groove; 112. Limiting groove; 12. Connecting body; 121. Fixing groove; 122. Fastening hole; 123. Fastener; 13. Cable; 131. Wire core; 132. Insulating layer; 14. Spring contact finger; 15. Stop sleeve; 2. Stress cone; 3. Adapter part; 31. Filling part; 32. First fixing part; 33. Second fixing part; 4. Sleeve; 5. Limiting part; 6. Equipment housing.
[0029] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0031] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0032] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, "and / or" in the full text includes three solutions. Taking A and / or B as an example, it includes technical solution A, technical solution B, and technical solution that satisfies both A and B; in addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0033] The inner cone plug-in terminal is usually used in conjunction with the inner cone insulating bushing for power transmission and transformation lines below 42kV, and is used in conjunction with C-GIS switchgear and transformers in indoor and outdoor environments. Even for inner cone bushings of the same voltage level, the size of the bushing will be different due to the different insulation environment of the switchgear or the rated current. This causes the structure of the inner cone plug-in terminal to change accordingly, making it impossible for existing bushings to adapt to standard-sized inner cones, wasting resources and development costs.
[0034] In view of this, the utility model proposes an inner cone terminal.
[0035] Please refer to Figure 1-4 In an embodiment of the utility model, the inner cone terminal includes a connecting portion 1 and a stress cone 2 surrounding the outer wall of the connecting portion 1; an adapting portion 3 surrounding the outer wall of the stress cone 2; and a sleeve 4 is arranged around the connecting portion 1 and the outer wall of the adapting portion 3.
[0036] Through this embodiment, by setting the adapter part 3 in the gap between the stress cone 2 and the sleeve 4, the inner wall of the adapter part 3 and the stress cone 2 are matched, and the outer wall of the adapter part 3 and the sleeve 4 are matched, so that the standard stress cone 2 is adapted to the non-standard sleeves 4 of different sizes, which is simple and convenient. At the same time, by introducing the adapter part 3, the entire inner cone terminal structure is also made more stable, saving resources and development costs, and the use of mature standard stress cones 2 also makes the product structure more reliable. Optionally, the standard stress cone 2 can be a 2# inner cone, which is not limited here.
[0037] The utility model proposes an embodiment, the connecting part 1 includes a cable 13, a connecting body 12 and a conductive part 11, the conductive part 11 is provided with a connecting groove 111 at one end facing the cable 13, the connecting body 12 is arranged in the connecting groove 111; a fixing groove 121 is axially arranged inside the connecting body 12, the cable 13 also includes a wire core 131, the wire core 131 is inserted into the fixing groove 121 to be connected to the groove wall of the fixing groove 121; the sleeve 4 is arranged around the outer wall of the connecting groove 111.
[0038] It is understandable that the end of the conductive part 11 facing the cable 13 is provided with a connection groove 111, and the connector 12 is arranged in the connection groove 111, so as to realize the electrical connection between the connector 12 and the conductive part 11. At the same time, a fixing groove 121 is axially provided inside the connector 12, and the cable 13 includes a conductive core 131 and an insulating layer 132 surrounding the outer wall of the core 131. The insulating layer 132 near one end of the connector 12 is stripped so that the core 131 is inserted into the fixing groove 121 to connect with the groove wall of the fixing groove 121. There are many ways to connect the core 131 and the groove wall of the fixing groove 121, such as crimping. It is understandable that the conductive part 11, the connector 12 and the core 131 are all conductive materials, such as metal materials. The sleeve 4 is arranged around the outer wall of the connecting groove 111, so that one end of the sleeve 4 is surrounded by the outer wall of the connecting groove 111, and the other end is surrounded by the outer wall of the adapter 3, thereby ensuring the stability of the entire inner cone terminal structure. It can be understood that the inner wall of the sleeve 4 and the outer wall of the connecting groove 111 can be an interference connection or a threaded connection, which is not limited here.
[0039] The utility model proposes an embodiment, a limiting groove 112 is further provided on the inner wall of the connecting groove 111, a spring contact finger 14 is further provided between the connecting body 12 and the conductive part 11, and the spring contact finger 14 is arranged in the limiting groove 112. It can be understood that the conductive part 11 and the spring contact finger 14 can adopt an integrated compression structure to ensure that there is sufficient interface pressure between the stress cone 2 and the sleeve 4.
[0040] The utility model proposes an embodiment, the connector 12 is provided with a fastening hole 122 in the radial direction, the fastening hole 122 is communicated with the fixing groove 121, a fastener 123 is provided in the fastening hole 122, and one end of the fastener 123 facing the wire core 131 abuts against the wire core 131. It can be understood that in order to ensure the stability of the wire core 131 of the cable 13 and the connector 12 during the connection process, and to prevent the wire core 131 from falling off from the fixing groove 121 of the connector 12, the connector 12 is further provided with a fastening hole 122 in the radial direction, and the fastening hole 122 is connected to the fixing groove 121. By arranging the fastener 123 in the fastening hole 122, one end of the fastener 123 facing the wire core 131 abuts against the core wire, so that the pressure applied on the surface of the wire core 131 by the fastener 123 is increased, and the friction between the core wire and the groove wall of the fixing groove 121 is increased, thereby further preventing the wire core 131 from falling off from the fixing groove 121. Optionally, there may be a plurality of fastening holes 122 , and the plurality of fastening holes 122 may be spaced apart and distributed on the connector 12 , thereby applying pressure to the core wire from multiple directions, thereby further preventing the core wire from falling off the connector 12 .
[0041] The utility model proposes an embodiment, the fastening hole 122 is a threaded hole, and the fastener 123 is a fastening bolt. It is understandable that the fastener 123 and the fastening hole 122 can be connected by a thread, so that the fastener 123 and the wire core 131 can be abutted by rotating, which not only facilitates the connection of the fastener 123, but also facilitates the disassembly of the fastener 123.
[0042] The utility model proposes an embodiment, in which a stop sleeve 15 is further provided between the connector 12 and the cable 13. It is understandable that during the use of the inner cone terminal, the cable 13 is prone to shaking, thereby increasing the risk of the wire core 131 and the fixing groove 121 falling off. By providing the stop sleeve 15 between the connector 12 and the cable 13, the end of the cable 13 close to the connector 12 is limited in the stop sleeve 15, thereby further improving the structural stability of the entire inner cone terminal.
[0043] The utility model proposes an embodiment, the adapter portion 3 has a filling portion 31, a first fixing portion 32 and a second fixing portion 33, the filling portion 31 is located between the stress cone 2 and the sleeve 4; the first fixing portion 32 is located at one end of the filling portion 31 away from the connector 12, and extends toward the axis; the second fixing portion 33 is connected to the first fixing portion 32, and extends along the axial direction away from the connector 12, and the filling portion 31, the first fixing portion 32, and the second fixing portion 33 are all arranged around the outer wall of the stress cone 2.
[0044] In this embodiment, in order to make the structure between the sleeve 4 and the stress cone 2 more stable, a filling portion 31 is provided to fill the gap between the sleeve 4 and the stress cone 2, so as to ensure the stability of the overall structure of the stress cone 2 and the sleeve 4. On the other hand, the adapter 3 also includes a first fixing portion 32 extending along the axis. The cooperation between the first fixing portion 32 and the stress cone 2 can prevent the stress cone 2 from falling off. At the same time, a second fixing portion 33 connected to the first fixing portion 32 is provided, and the second fixing portion 33 extends along the axial direction away from the connector 12, so that the second fixing portion 33 can be wrapped on the outer wall of the stress cone 2 away from the connector 12, further increasing the friction between the adapter 3 and the stress cone 2, and preventing the stress cone 2 from falling off.
[0045] The utility model proposes an embodiment, the inner cone terminal further includes a limiting portion 5, and the limiting portion 5 is located at one end of the sleeve 4 and the filling portion 31 away from the connecting body 12. Further, the inner cone terminal further includes a fixing member, which passes through the limiting portion 5 and the device housing 6 and is detachably connected to the sleeve 4. It can be understood that the limiting portion 5 is arranged at one end of the sleeve 4 and the filling portion 31 away from the connecting body 12, and at the same time, the fixing member passes through the limiting portion 5 and the device housing 6 and is detachably connected to the sleeve 4, so as to ensure the stability of the connection of the entire inner cone terminal and prevent the adapter 3 from falling off from the device housing 6.
[0046] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. An inner cone terminal, characterized in that: The inner cone terminal comprises a connecting portion (1) and a stress cone (2) surrounding the outer wall of the connecting portion (1); An adapting portion (3), the adapting portion (3) surrounding the outer wall of the stress cone (2); A sleeve (4), the sleeve (4) being arranged around the outer walls of the connecting portion (1) and the adapting portion (3).
2. The inner cone terminal according to claim 1, characterized in that: The connecting part (1) comprises a cable (13), a connecting body (12) and a conductive part (11). A connection groove (111) is provided at one end of the conductive portion (11) facing the cable (13), and the connector (12) is arranged in the connection groove (111); A fixing groove (121) is axially arranged inside the connecting body (12); the cable (13) further comprises a wire core (131); the wire core (131) is inserted into the fixing groove (121) to be connected to a groove wall of the fixing groove (121); The sleeve (4) is arranged around the outer wall of the connecting groove (111).
3. The inner cone terminal according to claim 2, characterized in that: A limiting groove (112) is also provided on the inner wall of the connecting groove (111), and a spring contact finger (14) is also provided between the connecting body (12) and the conductive part (11), and the spring contact finger (14) is arranged in the limiting groove (112).
4. The inner cone terminal according to claim 3, characterized in that: The connecting body (12) is provided with a fastening hole (122) along the radial direction, the fastening hole (122) is communicated with the fixing groove (121), a fastening piece (123) is provided in the fastening hole (122), and one end of the fastening piece (123) faces the wire core (131) and abuts against the wire core (131).
5. The inner cone terminal according to claim 4, characterized in that: The fastening hole (122) is a threaded hole, and the fastening member (123) is a fastening bolt.
6. The inner cone terminal according to claim 5, characterized in that: There are a plurality of fastening holes (122), and the plurality of fastening holes (122) are distributed at intervals on the connector (12).
7. The inner cone terminal according to claim 6, characterized in that: A stop sleeve (15) is also provided between the connecting body (12) and the cable (13).
8. The inner cone terminal according to claim 7, characterized in that: The adapting portion (3) comprises a filling portion (31), a first fixing portion (32) and a second fixing portion (33); the filling portion (31) is located between the stress cone (2) and the sleeve (4); The first fixing portion (32) is located at an end of the filling portion (31) away from the connecting body (12) and extends toward the axis; The second fixing portion (33) is connected to the first fixing portion (32) and extends in an axial direction away from the connecting body (12); the filling portion (31), the first fixing portion (32) and the second fixing portion (33) are all arranged around the outer wall of the stress cone (2).
9. The inner cone terminal according to claim 8, characterized in that: The inner cone terminal further comprises a limiting portion (5), and the limiting portion (5) is located at an end of the sleeve (4) and the filling portion (31) away from the connecting body (12).
10. The inner cone terminal according to claim 9, characterized in that: The inner cone terminal also includes a fixing member, which passes through the limiting portion (5) and the equipment housing (6) and is detachably connected to the sleeve (4).