Three-phase insulation module and electrical equipment
By designing the insulating connection assembly with split set and the substrate assembly with a clamping structure, the problem of difficult to take into account both the insulation performance and mechanical strength of the three-phase insulating module under high voltage levels is solved, and the structure is compact, mechanical strength and insulation performance are achieved. balance.
Patent Information
- Application Number
- CN202420986911.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-05-08
AI Technical Summary
It is difficult for existing three-phase insulating modules to take into account both insulation performance and mechanical strength at high voltage levels. If the size design is large, the insulation performance is better but the mechanical strength and process are difficult to guarantee. If the size design is small, the mechanical strength is excellent but the insulation performance is poor.
A three-phase insulating module is designed, and an insulating connection assembly is arranged in a separate body, including an intermediate conductor member and an insulating sleeve. The insulating sleeve is fixed through the clamping structure of the substrate assembly to ensure the balance of insulation performance and mechanical strength.
It has achieved compact structure, guaranteed mechanical strength, and good insulation performance, solving the problem of difficult to take into account both insulation performance and mechanical strength in the prior art.
Smart Images
Figure CN222463956U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrical engineering, in particular to a three-phase insulation module and electrical equipment. Background Art
[0002] The main busbar of the gas-insulated metal-enclosed switchgear (GIS) mostly adopts a three-phase common box structure, in which the three-phase insulation module plays an insulating support role and is used to realize the connection between two electrical modules.
[0003] Generally speaking, a three-phase insulating module includes a base and an insulating sheath arranged on the base. The insulating sheath is arranged integrally, and in order to adapt to three-phase electrical equipment, three conductive parts are intermittently arranged in the insulating sheath, and the three conductive parts correspond to the three-phase line connections of the electrical module respectively.
[0004] However, as the voltage level increases, sufficient electrical isolation distance needs to be left between conductive parts. The insulating sheath is usually set up in a split manner. The insulating sheath has three parts and is set on the base. However, in order for the three-phase insulating module to be able to adapt to the insulating support connection of the two electrical modules, there are certain requirements for the position and support strength of the conductive parts. If the size of the three-phase insulating module is designed to be large, the insulation performance will be relatively good, but the mechanical strength and process level will be difficult to guarantee. If the size of the three-phase insulating module is designed to be small, the mechanical strength and processing performance will be relatively good, but the insulation performance will be poor. Utility Model Content
[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a three-phase insulation module and electrical equipment, which has a compact structure, guaranteed mechanical strength and good insulation performance.
[0006] According to a first aspect of the utility model, a three-phase insulating module includes: three insulating connection components, the insulating connection components include an intermediate conductor and an insulating sleeve sleeved on the intermediate conductor; a substrate component is provided with three installation openings, the insulating connection components are passed through the substrate component through the installation openings one by one, the substrate component includes a first shell plate and a second shell plate, the first shell plate is stacked with the second shell plate, the first shell plate is provided with a first through hole, the second shell plate is provided with a second through hole, the first through hole and the second through hole correspond to define the installation opening, and the first shell plate and the second shell plate are connected to be clamped on the insulating sleeve.
[0007] A three-phase insulation module according to an embodiment of the utility model has at least the following beneficial effects:
[0008] The utility model discloses a three-phase insulating module, wherein the insulating connection components are three and are separately arranged, and the intermediate conductor component can be used for connection between two electrical modules, and for the installation structure of the insulating connection component, the substrate component includes a first shell plate and a second shell plate which are stacked on each other, and the first through hole and the second through hole correspond to define an installation opening, and the insulating connection components can be inserted into the installation opening one by one, and the first shell plate and the second shell plate can be clamped on the insulating sleeve to fix the insulating sleeve, and the three insulating sleeves are spaced apart, and the intermediate conductor component is insulated by the insulating sleeve to ensure good insulation ability, and the size of the insulating sleeve can also be relatively reduced, and sufficient mechanical support strength is formed by clamping the first shell plate and the second shell plate, and the design has a compact structure, guaranteed mechanical strength, and good insulation performance.
[0009] According to some embodiments of the present invention, the three-phase insulating module further includes a sleeve, one end of which is connected to a side of the second shell plate facing away from the first shell plate, and the intermediate conductor member passing through the second shell plate is located in the sleeve.
[0010] According to some embodiments of the present invention, the insulating sleeve is in a convex basin shape, and the insulating sleeve protrudes from the surface of the first shell plate in a direction away from the second shell plate.
[0011] According to some embodiments of the present utility model, the intermediate conductor member includes a conductive contact and a conductive strip, the conductive contact is connected to one end of the conductive strip, and the insulating sleeve is sleeved on the conductive contact.
[0012] According to some embodiments of the utility model, an inner side wall of the installation opening is provided with an extrusion groove, and an edge of the insulating sleeve is arranged in the extrusion groove and clamped by two side walls of the extrusion groove.
[0013] According to some embodiments of the utility model, the first shell plate is provided with a first groove in the circumferential direction of the edge of the first through hole, and the second shell plate is provided with a second groove in the circumferential direction of the edge of the second through hole, and the first groove and the second groove define the extrusion groove.
[0014] According to some embodiments of the present invention, a limiting structure is provided on the second sinking groove, and the limiting structure can limit the circumferential rotation of the insulating sleeve.
[0015] According to some embodiments of the utility model, the insulating connection assembly also includes a conductive shielding ring, which is disposed in the insulating sleeve, the shielding ring is sleeved on the intermediate conductor part and the shielding ring and the intermediate conductor part are spaced apart from each other, and the shielding ring is conductively connected to the substrate assembly.
[0016] According to some embodiments of the present invention, a plurality of conductive ribs are circumferentially arranged on the shielding ring, and the conductive ribs are conductively connected to the substrate assembly.
[0017] The electrical equipment according to the second embodiment of the utility model includes the three-phase insulation module disclosed in any one of the above embodiments.
[0018] The electrical device according to the embodiment of the utility model has at least the following beneficial effects:
[0019] The electrical equipment of the utility model applies the three-phase insulation module disclosed in any of the above embodiments, has a compact structure, guaranteed mechanical strength, and good insulation performance.
[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0022] Figure 1 It is a three-dimensional schematic diagram of one embodiment of the three-phase insulation module of the utility model;
[0023] Figure 2 This is an exploded view of one embodiment of the three-phase insulation module of the utility model;
[0024] Figure 3 for Figure 2 An enlarged schematic diagram of a part A of one embodiment of the three-phase insulation module of the utility model;
[0025] Figure 4 for Figure 2 An enlarged schematic diagram of a part B of one embodiment of the three-phase insulation module of the utility model;
[0026] Figure 5 for Figure 1 A schematic diagram of a cross section C-C of one embodiment of the three-phase insulation module of the utility model;
[0027] Figure 6 for Figure 5 FIG. 1 is an enlarged schematic diagram of a part D of one embodiment of the three-phase insulation module of the present invention.
[0028] Reference numerals:
[0029] Insulating connection assembly 100; intermediate conductor 110; conductive contact 111; conductive strip 112; insulating sleeve 120; notch 121; substrate assembly 200; first shell plate 210; first through hole 211; second shell plate 220; second through hole 221; mounting opening 230; extrusion groove 240; first recess 241; second recess 242; convex rib 250; sleeve 300; shielding ring 400; conductive rib 410. DETAILED DESCRIPTION
[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0031] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientations or positional relationships indicated by terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside", etc., are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0032] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0034] like Figure 1-6, according to the first aspect of the present invention, a three-phase insulation module is provided, comprising three insulation connection components 100 and a substrate component 200, wherein the insulation connection component 100 comprises an intermediate conductor 110 and an insulation sleeve 120 sleeved on the intermediate conductor 110, the substrate component 200 is provided with three installation openings 230, the insulation connection components 100 are passed through the substrate component 200 through the installation openings 230 in a one-to-one correspondence, the substrate component 200 comprises a first shell plate 210 and a second shell plate 220, the first shell plate 210 and the second shell plate 220 are stacked, the first shell plate 210 is provided with a first through hole 211, the second shell plate 220 is provided with a second through hole 221, the first through hole 211 and the second through hole 221 correspond to define the installation opening 230, the first shell plate 210 and the second shell plate 220 are connected to be clamped on the insulation sleeve 120.
[0035] The substrate assembly 200 is used to connect with the housing of the electrical device, specifically, as Figure 1 , 2 The second shell plate 220 can be connected to the shell by means of bolts, snaps, etc. The first shell plate 210 is smaller than the second shell and can be stacked on the second shell plate 220. The three-phase insulation module can be applied to GIS equipment. The intermediate conductor 110 can be electrically connected to the GIS equipment. The first shell plate 210 and the second shell plate 220 can be connected by means of bolts, etc. A thickened portion can be further provided at the second shell plate 220 near the second through hole 221 to increase the thickness of the second shell plate 220, thereby providing sufficient supporting strength to prevent deformation under the stress of high-pressure gas.
[0036] The insulating sleeve 120 can be cast by epoxy resin, which can greatly reduce the volume of the insulating sleeve 120 while meeting the same creepage distance, thereby reducing the risk and cost of casting.
[0037] In the three-phase insulating module of the utility model, there are three insulating connection components 100 and they are separately arranged. The intermediate conductor 110 can be used for the connection between two electrical modules. As for the installation structure of the insulating connection component 100, the substrate component 200 includes a first shell plate 210 and a second shell plate 220 stacked on each other. The first through hole 211 and the second through hole 221 correspond to define an installation opening 230. The insulating connection components 100 can be inserted into the installation opening 230 one by one, and the first shell plate 210 and the second shell plate 220 can be clamped on the insulating sleeve 120, so as to fix the insulating sleeve 120. The three insulating sleeves 120 are spaced apart, and the intermediate conductor 110 is insulated by the insulating sleeve 120 to ensure good insulation ability. The size of the insulating sleeve 120 can also be relatively reduced, and sufficient mechanical support strength is formed by clamping the first shell plate 210 and the second shell plate 220. The design has a compact structure, guaranteed mechanical strength, and good insulation performance.
[0038] In some embodiments of the present invention, Figure 1 , 2 As shown in FIG. 4 , the three-phase insulation module further includes a sleeve 300 , one end of which is connected to a side of the second shell plate 220 facing away from the first shell plate 210 , and the intermediate conductor 110 passing through the second shell plate 220 is located in the sleeve 300 .
[0039] The sleeve 300 can be inserted into the electrical equipment and filled with high-pressure insulating gas to prevent air breakdown and short circuit between the intermediate conductive parts. At the same time, the sleeve 300 can also protect the intermediate conductive parts and external equipment to prevent the intermediate conductive parts from contacting with the external equipment and conducting electricity.
[0040] In some embodiments of the present invention, Figure 1 , 2 As shown, the insulating sleeve 120 is in a convex basin shape, and the insulating sleeve 120 protrudes from the surface of the first shell plate 210 in a direction away from the second shell plate 220 .
[0041] The insulating sleeve 120 protrudes from the surface of the first shell plate 210 , so as to provide insulation protection for the intermediate conductor 110 and enable the intermediate conductor 110 to be more easily conductively connected to an external device.
[0042] In some embodiments of the present invention, Figure 2 , 5 As shown, the intermediate conductor 110 includes a conductive contact 111 and a conductive strip 112 . The conductive contact 111 is connected to one end of the conductive strip 112 . The insulating sleeve 120 is sleeved on the conductive contact 111 .
[0043] The conductive contact 111 is fixed on the insulating sleeve 120 and passes through the two side surfaces of the insulating sleeve 120. One end of the conductive contact 111 is exposed from one side surface of the insulating sleeve 120 so as to be able to contact the electrical module for conduction. The part of the conductive contact 111 exposed from the insulating sleeve 120 is sandblasted.
[0044] The other end of the conductive contact 111 can be connected to one end of the conductive strip 112 through a threaded structure, a snap-fit structure, a latch structure, etc. The conductive strip 112 is disposed in the sleeve 300 and connected to another electrical module.
[0045] In some embodiments of the present invention, Figure 5 , 6 As shown, the inner side wall of the installation opening 230 is provided with an extrusion groove 240 , and the edge of the insulating sleeve 120 is disposed in the extrusion groove 240 and clamped by the two side walls of the extrusion groove 240 .
[0046] The first shell plate 210 and the second shell plate 220 respectively form two side walls of the extrusion groove 240 , so that when the first shell plate 210 and the second shell plate 220 are connected, the two side walls of the extrusion groove 240 can clamp the edge of the insulating sleeve 120 to fix the insulating sleeve 120 .
[0047] In some embodiments of the present invention, the first shell plate 210 is provided with a first groove 241 on the circumference of the edge of the first through hole 211 , and the second shell plate 220 is provided with a second groove 242 on the circumference of the edge of the second through hole 221 . The first groove 241 and the second groove 242 define the extrusion groove 240 .
[0048] Alternatively, in some embodiments of the present invention, only the first shell plate 210 may be provided with a first groove 241 at the edge of the first through hole 211, and the first groove 241 and the surface of the second shell plate 220 form an extrusion groove 240, or only the second shell plate 220 may be provided with a second groove 242 at the edge of the second through hole 221, and the second groove 242 and the surface of the first shell plate 210 form an extrusion groove 240.
[0049] Specifically, dovetail-shaped deformation grooves can be provided on the upper and lower sides of the edge of the insulating sleeve 120 . The elastic insulating sleeve 120 can be deformed by being squeezed by the two side walls of the extrusion groove 240 , and the inner surface of the deformation groove can be tightly attached to the two side walls of the extrusion groove 240 .
[0050] In some embodiments of the present invention, Figure 3 , 4As shown, a limiting structure is provided on the second sinking groove 242 , and the limiting structure can limit the circumferential rotation of the insulating sleeve 120 .
[0051] Specifically, the limiting structure may include a convex rib 250 arranged on the second groove 242 and a recess 121 arranged on the insulating sleeve 120. There are multiple convex ribs 250, which are circumferentially arranged around the second groove 242. The recess 121 can be inserted in a one-to-one correspondence with the convex rib 250, thereby effectively limiting the circumferential rotation of the insulating sleeve 120.
[0052] In some embodiments of the present invention, Figure 2 , 6 As shown, the insulating connection assembly 100 also includes a conductive shielding ring 400, which is disposed in the insulating sleeve 120, and the shielding ring 400 is sleeved on the intermediate conductor 110 and the shielding ring 400 and the intermediate conductor 110 are spaced apart from each other, and the shielding ring 400 is conductively connected to the substrate assembly 200.
[0053] The shielding ring 400 may be made of conductive materials such as metal or alloy. The shielding ring 400 is connected to the first shell plate 210 or the second shell plate 220 in the substrate assembly 200 to be grounded, thereby shielding the intermediate conductor 110 .
[0054] Specifically, a plurality of conductive ribs 410 are disposed circumferentially on the shielding ring 400 , and the conductive ribs 410 are conductively connected to the substrate assembly 200 , so that the resistance at each position of the shielding ring 400 is small, thereby optimizing the shielding capability.
[0055] The electrical equipment according to the second embodiment of the utility model includes the three-phase insulation module disclosed in any one of the above embodiments.
[0056] The electrical equipment of the utility model applies the three-phase insulation module disclosed in any of the above embodiments, has a compact structure, guaranteed mechanical strength, and good insulation performance.
[0057] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0058] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. A three-phase insulation module, characterized in that: include: Three insulating connection components, each of which includes an intermediate conductor and an insulating sleeve sleeved on the intermediate conductor; The substrate assembly is provided with three installation openings, and the insulating connection assembly is passed through the installation openings in a one-to-one correspondence on the substrate assembly. The substrate assembly includes a first shell plate and a second shell plate, the first shell plate and the second shell plate are stacked, the first shell plate is provided with a first through hole, and the second shell plate is provided with a second through hole, the first through hole and the second through hole correspond to define the installation opening, and the first shell plate and the second shell plate are connected to be clamped on the insulating sleeve.
2. A three-phase insulation module according to claim 1, characterized in that: It also includes a sleeve, one end of which is connected to a side of the second shell plate facing away from the first shell plate, and the intermediate conductor member passing through the second shell plate is located in the sleeve.
3. A three-phase insulation module according to claim 1, characterized in that: The insulating sleeve is in a convex basin shape, and the insulating sleeve protrudes from the surface of the first shell plate in a direction away from the second shell plate.
4. A three-phase insulation module according to claim 1, characterized in that: The intermediate conductor comprises a conductive contact and a conductive strip, the conductive contact is connected to one end of the conductive strip, and the insulating sleeve is sleeved on the conductive contact.
5. A three-phase insulation module according to claim 1, characterized in that: The inner side wall of the installation opening is provided with an extrusion groove, and the edge of the insulating sleeve is arranged in the extrusion groove and clamped by the two side walls of the extrusion groove.
6. A three-phase insulation module according to claim 5, characterized in that: The first shell plate is provided with a first recessed groove in the circumferential direction of the edge of the first through hole, and the second shell plate is provided with a second recessed groove in the circumferential direction of the edge of the second through hole. The first recessed groove and the second recessed groove define the extrusion groove.
7. A three-phase insulation module according to claim 6, characterized in that: A limiting structure is provided on the second sinking groove, and the limiting structure can limit the circumferential rotation of the insulating sleeve.
8. A three-phase insulation module according to claim 1, characterized in that: The insulating connection assembly also includes a conductive shielding ring, which is arranged in the insulating sleeve, sleeved on the intermediate conductor and spaced from each other, and conductively connected to the substrate assembly.
9. A three-phase insulation module according to claim 8, characterized in that: A plurality of conductive ribs are arranged on the shielding ring along the circumferential direction, and the conductive ribs are conductively connected to the substrate assembly.
10. An electrical device, characterized in that: It comprises a three-phase insulation module as described in any one of claims 1 to 9.