CN219393066U - Three-phase insulating sleeve - Google Patents
Three-phase insulating sleeve Download PDFInfo
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- CN219393066U CN219393066U CN202320322031.3U CN202320322031U CN219393066U CN 219393066 U CN219393066 U CN 219393066U CN 202320322031 U CN202320322031 U CN 202320322031U CN 219393066 U CN219393066 U CN 219393066U
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Abstract
The embodiment of the utility model provides a three-phase insulating sleeve, and relates to the technical field of power equipment. The three-phase insulating sleeve comprises a base body and a sleeve member, wherein the sleeve member comprises a first sleeve, a second sleeve and a third sleeve which are sequentially arranged at intervals along the length direction of the base body, the first sleeve, the second sleeve and the third sleeve penetrate through the base body, and the base body and the sleeve member are integrally cast. Because the first sleeve, the second sleeve, the third sleeve and the matrix are integrally formed, connecting pieces connected among parts can be reduced, so that the three-phase insulating sleeve formed by integral casting can have a compact structure, and the occupied space of the three-phase insulating sleeve is reduced.
Description
Technical Field
The utility model relates to the technical field of power equipment, in particular to a three-phase insulating sleeve.
Background
At present, the domestic ring main unit basically adopts a full insulation type, a main switch of the ring main unit is sealed in a sealed air box and is connected with the outside through an insulation sleeve, after the cable wiring is completed, the whole ring main unit is in a full sealing state, and whether the cable wiring is correct or not can not be detected, so that a test port is added, the ring main unit is connected with a grounding switch of an internal switch through a three-phase insulation sleeve, and the reliability of the cable wiring is tested when the switch is at a grounding position.
The inventor researches and discovers that the occupied space of the existing three-phase insulating sleeve is larger.
Disclosure of Invention
The utility model aims to provide a three-phase insulating sleeve, which can effectively reduce the occupied space of the three-phase insulating sleeve.
Embodiments of the present utility model are implemented as follows:
in a first aspect, the present utility model provides a three-phase insulating sleeve comprising:
a base;
the sleeve part comprises a first sleeve, a second sleeve and a third sleeve which are sequentially arranged at intervals along the length direction of the base body, the base body is penetrated by the first sleeve, the second sleeve and the third sleeve, and the base body and the sleeve part are integrally cast.
The three-phase insulating sleeve formed by integral casting can reduce connecting pieces connected among all parts, so that the three-phase insulating sleeve has a compact structure.
In an alternative embodiment, the substrate has a first surface and a second surface opposite to each other, and the first sleeve, the second sleeve and the third sleeve sequentially penetrate the first surface and the second surface, and the first surface is further provided with an annular mounting groove, and the mounting groove is provided with a sealing ring.
Because the three-phase insulating sleeve is integrally cast and formed, only one sealing ring is needed, and a plurality of sealing rings are not needed to be used with the split-type three-phase insulating sleeve.
In an alternative embodiment, the first sleeve, the second sleeve and the third sleeve on one side of the first face have equal maximum spacing from the first face.
Through the arrangement, the first sleeve, the second sleeve and the third sleeve which are positioned on one side of the first surface can be connected with the external grounding row conveniently.
In an alternative embodiment, the maximum distance between the first sleeve and the second surface on the second surface side is a first distance, the maximum distance between the second sleeve and the second surface on the second surface side is a second distance, the distance between the third sleeve and the second surface on the second surface side is a third distance, the first distance is larger than the second distance, and the second distance is larger than the third distance.
Through the arrangement, the conductive rods arranged on the first sleeve, the second sleeve and the third sleeve can be connected with the internal grounding switch conveniently.
In an alternative embodiment, the base body is further provided with a reinforcement for reinforcing at least one of the first sleeve, the second sleeve and the third sleeve.
The strength of the sleeve part can be enhanced by arranging the reinforcing part.
In an alternative embodiment, the reinforcement is located on the second face, any two adjacent sleeves of the first sleeve, the second sleeve and the third sleeve are connected through the reinforcement, and a reinforcement is arranged on one side of the first sleeve away from the second sleeve.
Through above-mentioned setting, can strengthen the holistic intensity of three-phase insulating sleeve.
In an alternative embodiment, the second face of the base body is provided with mounting holes, the mounting holes being fitted with fasteners for connection to the air box.
The reliability of the connection with the air box is enhanced by the fastener.
In an alternative embodiment, the fastener is integrally cast with the base.
The nut is arranged on the base body through integral casting molding, so that the nut in the base body can be effectively ensured to be more stable.
In an alternative embodiment, the first sleeve, the second sleeve and the third sleeve are embedded with shielding members for shielding the high voltage electric field.
The high-voltage electric field generated when the three-phase bushing is connected to the external switch can be shielded by the shield.
In an alternative embodiment, the shield is integrally cast with the first sleeve, the second sleeve, and the third sleeve.
The shield can be more stably embedded in the first sleeve, the second sleeve and the third sleeve.
The embodiment of the utility model has the beneficial effects that: the three-phase insulating sleeve comprises a base body and a sleeve piece, wherein the sleeve piece comprises a first sleeve, a second sleeve and a third sleeve which are sequentially arranged at intervals along the length direction of the base body, the first sleeve, the second sleeve and the third sleeve penetrate through the base body, and the base body and the sleeve piece are integrally cast. Because the first sleeve, the second sleeve, the third sleeve and the matrix are integrally formed, the number of connecting pieces connected among parts can be reduced, and therefore the three-phase insulating sleeve formed by integrally casting can have a compact structure, and the space occupied by the three-phase insulating sleeve is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a three-phase insulating sleeve according to an embodiment of the present utility model at a first view angle;
fig. 2 is a schematic structural diagram of a three-phase insulating sleeve according to an embodiment of the present utility model at a second view angle;
fig. 3 is a schematic structural diagram of a three-phase insulating sleeve according to an embodiment of the present utility model at a third view angle;
fig. 4 is a cross-sectional view of fig. 3.
1-three-phase insulating sleeve; 10-substrate; 11-a first side; 12-a second side; 13-a sealing ring; 14-a stiffener; 20-sleeve parts; 21-a first sleeve; 22-a second sleeve; 23-a third sleeve; 30-a fastener; 40-shielding; 2-conductive bars.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The specific structure of the three-phase insulating sleeve and the corresponding technical effects thereof provided by the embodiment of the utility model are described in detail below with reference to the accompanying patent drawings.
Referring to fig. 1-4, an embodiment of the present utility model provides a three-phase insulating sleeve 1 including a base 10 and a sleeve member 20, wherein the sleeve member 20 includes a first sleeve 21, a second sleeve 22 and a third sleeve 23 sequentially arranged at intervals along a length direction of the base 10, wherein the first sleeve 21, the second sleeve 22 and the third sleeve 23 are all inserted into the base 10, and the base 10 and the sleeve member 20 are integrally cast.
It is easy to understand that, because the first sleeve 21, the second sleeve 22, the third sleeve 23 and the base 10 are integrally formed in this embodiment, the number of connecting pieces for connecting each component can be reduced, and therefore, the three-phase insulating sleeve 1 formed by integrally casting can have a relatively compact structure, and further, the space occupied by the three-phase insulating sleeve 1 is reduced, thereby saving space for the ring main unit and being beneficial to miniaturization of the ring main unit.
Moreover, the three-phase insulating sleeve 1 is integrally cast and formed, so that the production efficiency of the three-phase insulating sleeve 1 can be improved.
In the present embodiment, the conductive rod 2 is installed in each of the first sleeve 21, the second sleeve 22, and the third sleeve 23, and the conductive rod 2 is electrically connected to the outside.
The base 10 has a first surface 11 and a second surface 12 opposite to each other, and the first sleeve 21, the second sleeve 22, and the third sleeve 23 sequentially penetrate the first surface 11 and the second surface 12, and the first surface 11 is further provided with an annular mounting groove for mounting the seal ring 13.
In the present embodiment, the first sleeve 21, the second sleeve 22, and the third sleeve 23 are connected to the gas tank at one end of the first surface 11 of the base 10. When the conductive rods 2 on the first sleeve 21, the second sleeve 22 and the third sleeve 23 on one side of the first surface 11 of the base body 10 are connected with the gas tank, the connection parts of the first sleeve 21, the second sleeve 22 and the third sleeve 23 and the first surface 11 of the base body 10 are positioned in the space surrounded by the annular mounting grooves, and can be assembled on the gas tank through the sealing rings 13 to realize the sealing connection with the gas tank.
It can be understood that, since the three-phase insulating sleeve 1 in the embodiment is integrally cast, only one sealing ring 13 is needed to be arranged, and a plurality of sealing rings 13 are not needed to be used with the split-type three-phase insulating sleeve 1, so that the tightness of connection with the gas tank can be improved to a certain extent.
In the present embodiment, the mounting groove on the second surface 12 of the base 10 is also formed by integrally casting, that is, the casting die is provided with a member for forming the mounting groove.
Further, in the present embodiment, the maximum pitches of the first sleeve 21, the second sleeve 22, and the third sleeve 23 on the side of the first face 11 are equal to the first face 11. In other words, the length of the portion of the first sleeve 21 on the side of the first face 11 is equal to the length of the portion of the second sleeve 22 on the side of the first face 11 and the length of the portion of the third sleeve 23 on the side of the first face 11.
By the above arrangement, the first sleeve 21, the second sleeve 22, and the third sleeve 23 located on the first surface 11 side can be easily connected to the external ground line.
Further, the maximum distance between the first sleeve 21 and the second surface 12 on the side of the second surface 12 is a first distance, the maximum distance between the second sleeve 22 and the second surface 12 on the side of the second surface 12 is a second distance, and the distance between the third sleeve 23 and the second surface 12 on the side of the second surface 12 is a third distance, wherein the first distance is larger than the second distance, and the second distance is larger than the third distance.
In other words, the first sleeve 21, the second sleeve 22 and the third sleeve 23 located on the second surface 12 side are different in distance from the second surface 12, and by the above arrangement, the connection of the conductive rod 2 mounted on the first sleeve 21, the second sleeve 22 and the third sleeve 23 to the internal ground switch can be facilitated.
Further, the base body 10 is further provided with a reinforcing member 14 for reinforcing at least one of the first sleeve 21, the second sleeve 22, and the third sleeve 23.
In other words, the reinforcing member 14 on the base 10 may reinforce the strength of only the first sleeve 21, the strength of only the second sleeve 22, the strength of only the third sleeve 23, the strength of only the first sleeve 21 and the second sleeve 22, the strength of only the first sleeve 21 and the third sleeve 23, the strength of only the second sleeve 22 and the third sleeve 23, or the strength of both the first sleeve 21, the second sleeve 22 and the third sleeve 23.
In the present embodiment, the reinforcement 14 is used to simultaneously reinforce the strength of the first sleeve 21, the second sleeve 22 and the third sleeve 23, so as to ensure the strength of the whole three-phase insulating sleeve 1 in the present embodiment.
Further, in the present embodiment. The reinforcement member 14 is located on the second face 12, and any two adjacent ones of the first sleeve 21, the second sleeve 22, and the third sleeve 23 are connected by the reinforcement member 14, in other words, the first sleeve 21 and the second sleeve 22 are connected by the reinforcement member 14, and the second sleeve 22 and the third sleeve 23 are connected by the reinforcement member 14. And the side of the first sleeve 21 remote from the second sleeve 22 is provided with a reinforcement 14. It can be appreciated that, since the conductive rods 2 of the first sleeve 21, the second sleeve 22 and the third sleeve 23 located on the second surface 12 side in this embodiment need to be connected to the switch grounding position, the strength of the first sleeve 21, the second sleeve 22 and the third sleeve 23 located on the second surface 12 side can be effectively ensured.
Of course, in other embodiments, the reinforcement 14 may also be provided on the side of the third sleeve 23 remote from the second sleeve 22.
Further, in this embodiment, the second surface 12 of the base 10 is further provided with a mounting hole, and the mounting hole is provided with a fastener 30 for connecting with the air box, specifically, in this embodiment, the fastener 30 is a nut, and the fastener 30 and the base 10 are integrally cast. It should be noted that, before pouring and forming, the three-phase insulating sleeve 1 in this embodiment installs the nut at the preset position of the mold, and then performs integral pouring and forming to obtain the three-phase insulating sleeve 1 with the nut in this scheme, and through the messenger nut that is formed by integral pouring and installs on the base body 10, the nut in the base body 10 can be effectively guaranteed to be more stable.
The number of nuts in the present embodiment is plural.
Further, in the present embodiment, the first sleeve 21, the second sleeve 22 and the third sleeve 23 are embedded with the shielding member 40 for shielding the high voltage electric field.
The shield 40 is integrally molded with the first sleeve 21, the second sleeve 22, and the third sleeve 23. That is, the shield 40 in the first sleeve 21, the shield 40 in the second sleeve 22, and the shield 40 in the third sleeve 23 are integrally cast with the first sleeve 21, the second sleeve 22, and the third sleeve 23.
Specifically, before the three-phase insulating sleeve 1 provided in this embodiment is integrally cast and formed, the shielding member 40 and the nut need to be prevented from being cast and formed integrally at a preset position on the casting template, so that the three-phase insulating sleeve 1 in this embodiment is obtained, and the shielding member 40 can be more stably embedded in the first sleeve 21, the second sleeve 22 and the third sleeve 23.
In the present embodiment, the casting material is epoxy resin, that is, the material of the base 10, the first sleeve 21, the second sleeve 22, and the third sleeve 23 in the three-phase insulating sleeve 1 is epoxy resin.
In summary, the three-phase insulating sleeve 1 provided by the embodiment of the utility model includes the base 10 and the sleeve member 20, wherein the sleeve member 20 includes the first sleeve 21, the second sleeve 22 and the third sleeve 23 sequentially arranged at intervals along the length direction of the base 10, and the first sleeve 21, the second sleeve 22 and the third sleeve 23 are all inserted through the base 10, and the base 10 and the sleeve member 20 are integrally cast. Because the first sleeve 21, the second sleeve 22, the third sleeve 23 and the base body 10 are integrally formed in this embodiment, the number of connecting pieces for connecting parts can be reduced, and thus the three-phase insulating sleeve 1 formed by integrally casting can have a compact structure, and the space occupied by the three-phase insulating sleeve 1 is reduced.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. A three-phase insulating sleeve, comprising:
a base body (10);
the sleeve part (20), sleeve part (20) include along first sleeve (21), second sleeve (22) and third sleeve (23) that base member (10) length direction interval set gradually, first sleeve (21) second sleeve (22) and third sleeve (23) all wear to establish base member (10), base member (10) with sleeve part (20) integral casting shaping.
2. The three-phase insulating sleeve according to claim 1, wherein:
the base body (10) is provided with a first surface (11) and a second surface (12) which are opposite, the first sleeve (21), the second sleeve (22) and the third sleeve (23) sequentially penetrate through the first surface (11) and the second surface (12), the first surface (11) is further provided with an annular mounting groove, and the mounting groove is provided with a sealing ring (13).
3. The three-phase insulating sleeve according to claim 2, wherein:
the maximum distances from the first sleeve (21), the second sleeve (22) and the third sleeve (23) on one side of the first surface (11) to the first surface (11) are equal.
4. A three-phase insulating sleeve according to claim 3, characterized in that:
the maximum distance between the first sleeve (21) and the second sleeve (12) on the second surface (12) side is a first distance, the maximum distance between the second sleeve (22) and the second sleeve (12) on the second surface (12) side is a second distance, the distance between the third sleeve (23) and the second sleeve (23) on the second surface (12) side is a third distance, the first distance is larger than the second distance, and the second distance is larger than the third distance.
5. The three-phase insulating sleeve according to claim 2, wherein:
the base body (10) is further provided with a reinforcement (14) for reinforcing at least one of the first sleeve (21), the second sleeve (22) and the third sleeve (23).
6. The three-phase bushing of claim 5, wherein:
the reinforcement (14) is located on the second face (12), any two adjacent sleeves of the first sleeve (21), the second sleeve (22) and the third sleeve (23) are connected through the reinforcement (14), and one side, away from the second sleeve (22), of the first sleeve (21) is provided with the reinforcement (14).
7. The three-phase insulating sleeve according to claim 1, wherein:
the second face (12) of the base body (10) is provided with a mounting hole, and a fastener (30) used for being connected with the air box is mounted in the mounting hole.
8. The three-phase bushing of claim 7 wherein:
the fastener (30) and the base body (10) are integrally cast.
9. The three-phase insulating sleeve according to claim 1, wherein:
the first sleeve (21), the second sleeve (22) and the third sleeve (23) are embedded with shielding pieces (40) for shielding high-voltage electric fields.
10. The three-phase insulating sleeve according to claim 9, wherein:
the shielding piece (40) and the first sleeve (21), the second sleeve (22) and the third sleeve (23) are integrally cast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320322031.3U CN219393066U (en) | 2023-02-24 | 2023-02-24 | Three-phase insulating sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320322031.3U CN219393066U (en) | 2023-02-24 | 2023-02-24 | Three-phase insulating sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219393066U true CN219393066U (en) | 2023-07-21 |
Family
ID=87199060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320322031.3U Active CN219393066U (en) | 2023-02-24 | 2023-02-24 | Three-phase insulating sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219393066U (en) |
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2023
- 2023-02-24 CN CN202320322031.3U patent/CN219393066U/en active Active
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