CN214203342U - Composite outer sleeve lightning arrester structure - Google Patents
Composite outer sleeve lightning arrester structure Download PDFInfo
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- CN214203342U CN214203342U CN202022932585.4U CN202022932585U CN214203342U CN 214203342 U CN214203342 U CN 214203342U CN 202022932585 U CN202022932585 U CN 202022932585U CN 214203342 U CN214203342 U CN 214203342U
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Abstract
The utility model discloses a composite outer sleeve lightning arrester structure, which comprises an insulating cylinder, an outer insulating umbrella sleeve, a lightning arrester core body, a wiring end cover and a bottom end cover; the wiring end cover is covered at the top end of the insulating cylinder and is in interference connection with the insulating cylinder; the bottom end cover is arranged at the bottom end of the insulating cylinder and is in interference connection with the insulating cylinder; the lightning arrester core body is arranged in the insulating cylinder, and two ends of the lightning arrester core body are respectively abutted against the wiring end cover and the bottom end cover; the outer insulating umbrella cover is sleeved outside the insulating cylinder, and two ends of the outer insulating umbrella cover extend to the outer wall of the wiring end cover and the outer wall of the bottom end cover respectively. Because insulation cylinder and wiring end cover and bottom end cover all adopt interference fit's mode, consequently, avoided seting up the problem that insulation cylinder intensity reduces that the screw thread leads to on insulation cylinder.
Description
Technical Field
The utility model belongs to the technical field of the arrester manufacturing technology and specifically relates to a composite outer sleeve arrester structure is related to.
Background
The composite outer sleeve lightning arrester has the characteristics of good pollution resistance, small volume, light weight, convenience in installation and the like, and is widely applied to an electric power system.
The composite coated lightning arrester mainly comprises a resistance card, an insulating cylinder, an end cover and an insulating coating. The composite outer sleeve lightning arrester with the cylindrical structure has high mechanical strength and is a structure commonly adopted by the existing high-voltage lightning arrester. For the cylindrical structure, the end cap is usually screwed with the insulating cylinder, and then the insulating umbrella sleeve is molded outside the insulating cylinder. However, the mechanical strength of the arrester is reduced by the thread processing on the insulating cylinder, and the production cost of the parts is high and the production efficiency is low.
Therefore, how to avoid reducing the mechanical strength of the arrester and improve the production efficiency of the arrester is a technical problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a composite jacket arrester structure can avoid reducing the mechanical strength of arrester, and can also improve the production efficiency of arrester.
In order to achieve the above object, the present invention provides the following solutions:
a composite outer sleeve lightning arrester structure comprises an insulating cylinder, an outer insulating umbrella sleeve, a lightning arrester core body, a wiring end cover and a bottom end cover;
the wiring end cover is covered at the top end of the insulating cylinder and is in interference connection with the insulating cylinder;
the bottom end cover is arranged at the bottom end of the insulating cylinder and is in interference connection with the insulating cylinder;
the lightning arrester core body is arranged in the insulating cylinder, and two ends of the lightning arrester core body are respectively abutted against the wiring end cover and the bottom end cover;
the outer insulation umbrella cover is sleeved outside the insulation barrel, and two ends of the outer insulation umbrella cover extend to the outer wall of the wiring end cover and the outer wall of the bottom end cover respectively.
In a particular embodiment, the composite housed arrester structure further includes a first resilient member;
a first accommodating groove is formed in the top end of the arrester core body, and the first elastic piece is arranged in the first accommodating groove;
the top end of the first elastic piece is connected with the bottom end of the wiring end cover, the bottom end of the first elastic piece is abutted against the bottom wall of the first accommodating groove,
or
The top end of the first elastic piece is abutted against the bottom end of the wiring end cover, the bottom end of the first elastic piece is connected with the bottom wall of the first accommodating groove,
or
The top of first elastic component with the bottom butt of wiring end cover, the bottom of first elastic component and the diapire butt of first holding tank.
In another specific embodiment, the composite housed arrester structure further comprises a second resilient member;
a second accommodating groove is formed in the bottom end of the arrester core body, and the second elastic piece is arranged in the second accommodating groove;
the top end of the second elastic piece is connected with the bottom wall of the second accommodating groove, the bottom end of the second elastic piece is abutted against the top end of the bottom end cover,
or
The top end of the second elastic piece is abutted against the bottom wall of the second accommodating groove, the bottom end of the second elastic piece is connected with the top end of the bottom end cover,
or
The top end of the second elastic piece is abutted to the bottom wall of the second accommodating groove, and the bottom end of the second elastic piece is abutted to the top end of the bottom end cover.
In another specific embodiment, the first and second elastic members are both compression springs.
In another specific embodiment, the arrester core body comprises a resistor sheet assembly, an upper end block, and a lower end block;
the upper end block, the resistor sheet assembly and the lower end block are sequentially connected in series and stacked, the first accommodating groove is formed in the upper end block, and the second accommodating groove is formed in the lower end block.
In another specific embodiment, the resistor disc assembly comprises a resistor disc set and a cushion block;
the number of the resistor groups and the number of the cushion blocks are multiple, the resistor groups and the cushion blocks are stacked in series, and the adjacent resistor groups are spaced by the cushion blocks;
the resistor sheet group comprises at least 4 resistor sheets stacked in series.
In another specific embodiment, the interference of the joint of the terminal cover and the insulating cylinder is greater than or equal to 0.6mm and less than or equal to 0.8 mm;
the interference magnitude of the matching part of the bottom end cover and the insulating cylinder is greater than or equal to 0.6mm and less than or equal to 0.8 mm.
In another specific embodiment, the terminal end cap and the bottom end cap are both metal end caps.
In another specific embodiment, the insulating cylinder is made of an organic material.
In another specific embodiment, the outer insulating umbrella cover is made of rubber material, and the outer insulating umbrella cover is pressed on the outer walls of the terminal end cover, the insulating cylinder and the bottom end cover.
According to the utility model discloses an each embodiment can make up as required wantonly, and the embodiment that obtains after these combinations is also in the utility model discloses the scope is the utility model discloses a part of the concrete implementation mode.
In an embodiment of the present invention, since the terminal cover is disposed on the top of the insulating cylinder and is connected to the insulating cylinder in an interference manner, the bottom cover is disposed on the bottom of the insulating cylinder and is connected to the insulating cylinder in an interference manner, i.e., the insulating cylinder is in an interference fit manner with the terminal cover and the bottom cover, thereby avoiding the problem of strength reduction of the insulating cylinder caused by the thread disposed on the insulating cylinder.
In addition, the two ends of the insulating cylinder are in interference fit with the wiring end cover and the bottom end cover respectively, the sealing of the lightning arrester core body is achieved, the two ends of the outer insulating umbrella sleeve extend to the outer wall of the wiring end cover and the outer wall of the bottom end cover respectively, and the sealing performance of the lightning arrester core body is further improved.
The lightning arrester core body is installed in the insulating cylinder, and the both ends of lightning arrester core body respectively with wiring end cover and bottom end cover butt, avoided the lightning arrester core body to rock in the insulating cylinder.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without any novelty.
Fig. 1 is the structure schematic diagram of the composite housed arrester structure provided by the utility model.
Wherein, in fig. 1:
the lightning arrester comprises an insulating cylinder 1, an outer insulating umbrella cover 2, a lightning arrester core body 3, a wiring end cover 4, a bottom end cover 5, a first elastic piece 6, a second elastic piece 7, an upper end block 301, a lower end block 302, a resistor group 303 and a cushion block 304.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to fig. 1 and the detailed description.
As shown in fig. 1, the utility model provides a composite outer sleeve lightning arrester structure, wherein, composite outer sleeve lightning arrester structure includes insulating cylinder 1, outer insulation chute boot 2, lightning arrester core 3, wiring end cover 4 and bottom lid 5.
The wiring end cover 4 is covered on the top end of the insulating cylinder 1 and is in interference connection with the insulating cylinder 1. Specifically, the terminal cover 4 is heated, the temperature is controlled, the terminal cover 4 is sleeved on the top end of the insulating cylinder 1 after the terminal cover 4 is heated to the specified temperature, and then the terminal cover 4 and the top end of the insulating cylinder 1 are mechanically fixed in the axial direction and cooled, so that the terminal cover 4 and the top end of the insulating cylinder 1 are fixed.
The bottom end cover 5 is arranged at the bottom end of the insulating cylinder 1 and is in interference fit connection with the insulating cylinder 1, specifically, the bottom end cover 5 is heated, the temperature is controlled, after the bottom end cover is heated to a specified temperature, the bottom end cover 5 is sleeved at the bottom end of the insulating cylinder 1, then axial mechanical fixing and cooling are adopted, and therefore fixing of the bottom end cover 5 and the top end of the insulating cylinder 1 is achieved.
The arrester core body 3 is installed in the insulating cylinder 1, and the both ends of the arrester core body 3 respectively with terminal cover 4 and 5 butts of bottom end lid, avoid the arrester core body 3 to rock in the insulating cylinder 1.
The outer insulating umbrella cover 2 is sleeved outside the insulating cylinder 1, and two ends of the outer insulating umbrella cover 2 respectively extend to the outer wall of the wiring end cover 4 and the outer wall of the bottom end cover 5.
Because the 4 lids of terminal cover establish on the top of insulating cylinder 1, and be connected with insulating cylinder 1 interference, bottom end lid 5 lid is established in the bottom of insulating cylinder 1, and is connected with insulating cylinder 1 interference, and insulating cylinder 1 all adopts interference fit's mode with terminal cover 4 and bottom end lid 5 promptly, consequently, has avoided offering the problem that the 1 intensity of insulating cylinder that the screw thread leads to reduces on insulating cylinder 1.
In addition, the two ends of the insulating cylinder 1 are in interference fit with the wiring end cover 4 and the bottom end cover 5 respectively, so that the lightning arrester core body 3 is sealed, the two ends of the outer insulating umbrella sleeve 2 extend to the outer wall of the wiring end cover 4 and the outer wall of the bottom end cover 5 respectively, and the sealing performance of the lightning arrester core body 3 is further improved.
In some embodiments, the composite housed arrester structure further includes a first elastic member 6, a first receiving groove is formed at the top end of the arrester core body 3, and the first elastic member 6 is disposed in the first receiving groove.
Specifically, the top of first elastic component 6 is connected with the bottom of wiring end cover 4, and the bottom of first elastic component 6 and the diapire butt of first holding tank realize compressing tightly arrester core 3 through first elastic component 6.
The first elastic member 6, the terminal cover 4 and the first receiving groove may be connected to each other, for example, the top end of the first elastic member 6 abuts against the bottom end of the terminal cover 4, and the bottom end of the first elastic member 6 is connected to the bottom wall of the first receiving groove; or the top end of the first elastic piece 6 is abutted with the bottom end of the wiring end cover 4, and the bottom end of the first elastic piece 6 is abutted with the bottom wall of the first accommodating groove.
In some embodiments, the composite housed arrester structure further includes a second elastic member 7, a second receiving groove is opened at the bottom end of the arrester core body 3, and the second elastic member 7 is disposed in the second receiving groove.
Specifically, the top of second elastic component 7 is connected with the diapire of second holding tank, and the bottom of second elastic component 7 and the top butt of bottom end lid 5 realize compressing tightly arrester core 3 through second elastic component 7. It should be noted that the second elastic element 7, the bottom end cap 5 and the second receiving groove may be connected in other connection relationships, for example, the top end of the second elastic element 7 abuts against the bottom wall of the second receiving groove, and the bottom end of the second elastic element 7 is connected with the top end of the bottom end cap 5; or the top end of the second elastic element 7 is abutted against the bottom wall of the second accommodating groove, and the bottom end of the second elastic element 7 is abutted against the top end of the bottom end cover 5.
Further, the utility model discloses a first elastic component 6 and second elastic component 7 are compression spring. The first elastic member 6 and the second elastic member 7 may be connected by other connection methods, for example, the first elastic member 6 and the second elastic member 7 are rubber blocks.
In some embodiments, the arrester core body 3 includes a resistor group 303, an upper end block 301 and a lower end block 302, the upper end block 301, the resistor group 303 and the lower end block 302 are sequentially stacked in series, a first accommodating groove is formed in the upper end block 301, and a second accommodating groove is formed in the lower end block 302.
Further, the utility model discloses a resistance piece group 303 piece includes resistance piece group 303 and cushion 304, and the number of resistance piece group 303 and cushion 304 is a plurality ofly, and resistance piece group 303 and cushion 304 series connection closed assembly, and adjacent resistance piece group 303 passes through cushion 304 interval. The topmost resistor group 303 abuts the upper end block 301, and the bottommost resistor group 303 abuts the lower end block 302.
The resistor group 303 includes at least 4 resistors stacked in series, and it should be noted that the number of the resistors included in the resistor group 303 is not limited, and may be increased or decreased as needed.
In some embodiments, the interference of the terminal cover 4 and the insulation barrel 1 is greater than or equal to 0.6mm and less than or equal to 0.8 mm.
The interference magnitude of the matching part of the bottom end cover 5 and the insulating cylinder 1 is greater than or equal to 0.6mm and less than or equal to 0.8 mm.
Further, the utility model discloses a wiring end cover 4 and bottom end cover 5 are the metal end cover, and the volume of expend with heat and contract with cold is bigger, is convenient for realize being connected with the interference of insulating cylinder 1.
Further, the utility model discloses an insulating cylinder 1 adopts organic material to make.
The outer insulating umbrella cover 2 is made of rubber materials, and the outer insulating umbrella cover 2 is pressed on the outer walls of the wiring end cover 4, the insulating cylinder 1 and the bottom end cover 5.
In order to facilitate the outer wall of establishing at terminal cover 4 and bottom lid 5 is pressed to outer insulation chute boot 2, the utility model discloses a bottom of 1 cup jointing department at terminal cover 4 and insulating cylinder is provided with annular groove, and bottom lid 5 is provided with annular groove with the top of 1 cup jointing department of insulating cylinder.
The utility model discloses a preparation of compound overcoat arrester structure includes following step:
step S1: heating the bottom end cover 5 to 220 ℃ for 26 minutes, sleeving the bottom end cover at the top end connecting position of the insulating cylinder 1 within 3 minutes, fixing the bottom end cover 5 externally by adopting axial machinery, applying external forced air cooling, stopping external air cooling after cooling to 40 ℃, and removing external mechanical force;
step S2: sequentially arranging a second elastic member 7, a lightning arrester core body 3 and a first elastic member 6 into the insulating cylinder 1;
step S3: heating the wiring end cover 4 to 220 ℃, continuing for 26 minutes, sleeving the wiring end cover 4 at the connecting position at the top end of the insulating cylinder 1 within 3 minutes, then compressing the first elastic part 6 and the second elastic part 7 by adopting axial mechanical force externally, fixing the wiring end cover 4 and the insulating cylinder 1, applying external forced air cooling, stopping external air cooling after cooling to 40 ℃, and removing the external mechanical force;
step S4: coating a coupling agent on the outer walls of the wiring end cover 4, the bottom end cover 5 and the insulating cylinder 1, placing for 30min, then placing into a mold, injecting silicon rubber, and integrally forming an outer insulating umbrella cover 2 on the outer walls of the wiring end cover 4, the bottom end cover 5 and the insulating cylinder 1, wherein the vulcanization condition is as follows: the temperature is 155 ℃, the forming pressure is 12MPa, and the vulcanizing time is 25 min.
The utility model provides a compound overcoat arrester structure adopts interference fit, through respectively heating to wiring end cover 4 and bottom end cover 5, and control temperature will heat the wiring end cover 4 and the bottom end cover 5 of regulation temperature and cup joint the specified position on the insulator cylinder 1 again, then adopts axial mechanical fixation, the cooling to realized arrester wiring end cover 4, bottom end cover 5 and the fixed of 1 tip of insulator cylinder, compound overcoat arrester structure has high tensile and crooked mechanical strength. The utility model discloses utilized the material characteristic, easy operation, low in manufacturing cost, production efficiency is high, is applicable to the large-scale and produces line production, and its effectual reliability and the security that improves the arrester.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in an article or device that comprises the element.
The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the core concepts of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. A composite outer sleeve lightning arrester structure is characterized by comprising an insulating cylinder, an outer insulating umbrella sleeve, a lightning arrester core body, a wiring end cover and a bottom end cover;
the wiring end cover is covered at the top end of the insulating cylinder and is in interference connection with the insulating cylinder;
the bottom end cover is arranged at the bottom end of the insulating cylinder and is in interference connection with the insulating cylinder;
the lightning arrester core body is arranged in the insulating cylinder, and two ends of the lightning arrester core body are respectively abutted against the wiring end cover and the bottom end cover;
the outer insulation umbrella cover is sleeved outside the insulation barrel, and two ends of the outer insulation umbrella cover extend to the outer wall of the wiring end cover and the outer wall of the bottom end cover respectively.
2. The composite housed arrester structure of claim 1 further comprising a first resilient member;
a first accommodating groove is formed in the top end of the arrester core body, and the first elastic piece is arranged in the first accommodating groove;
the top end of the first elastic piece is connected with the bottom end of the wiring end cover, the bottom end of the first elastic piece is abutted against the bottom wall of the first accommodating groove,
or
The top end of the first elastic piece is abutted against the bottom end of the wiring end cover, the bottom end of the first elastic piece is connected with the bottom wall of the first accommodating groove,
or
The top of first elastic component with the bottom butt of wiring end cover, the bottom of first elastic component and the diapire butt of first holding tank.
3. The composite housed arrester structure of claim 2 further comprising a second resilient member;
a second accommodating groove is formed in the bottom end of the arrester core body, and the second elastic piece is arranged in the second accommodating groove;
the top end of the second elastic piece is connected with the bottom wall of the second accommodating groove, the bottom end of the second elastic piece is abutted against the top end of the bottom end cover,
or
The top end of the second elastic piece is abutted against the bottom wall of the second accommodating groove, the bottom end of the second elastic piece is connected with the top end of the bottom end cover,
or
The top end of the second elastic piece is abutted to the bottom wall of the second accommodating groove, and the bottom end of the second elastic piece is abutted to the top end of the bottom end cover.
4. The composite housed arrester structure of claim 3 wherein the first and second resilient members are each a compression spring.
5. The composite housed arrester structure of claim 3 wherein the arrester core body includes a resistive sheet assembly, an upper end block, and a lower end block;
the upper end block, the resistor sheet assembly and the lower end block are sequentially connected in series and stacked, the first accommodating groove is formed in the upper end block, and the second accommodating groove is formed in the lower end block.
6. The composite housed arrester structure of claim 5 wherein the resistive sheet assembly includes a resistive sheet assembly and a spacer block;
the number of the resistor groups and the number of the cushion blocks are multiple, the resistor groups and the cushion blocks are stacked in series, and the adjacent resistor groups are spaced by the cushion blocks;
the resistor sheet group comprises at least 4 resistor sheets stacked in series.
7. The composite housed arrester structure of claim 1 wherein an interference at a mating portion of the terminal cover and the insulating cylinder is greater than or equal to 0.6mm and less than or equal to 0.8 mm;
the interference magnitude of the matching part of the bottom end cover and the insulating cylinder is greater than or equal to 0.6mm and less than or equal to 0.8 mm.
8. The composite housed arrester structure of claim 1 wherein the terminal end cap and the bottom end cap are both metal end caps.
9. The composite housed arrester structure of claim 1 wherein the insulating cylinder is made of an organic material.
10. The composite housed arrester structure of any one of claims 1-9 wherein the outer insulating shroud is made of a rubber material and the outer insulating shroud is pressed against the outer walls of the terminal end cap, the insulating cylinder and the bottom end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022932585.4U CN214203342U (en) | 2020-12-07 | 2020-12-07 | Composite outer sleeve lightning arrester structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022932585.4U CN214203342U (en) | 2020-12-07 | 2020-12-07 | Composite outer sleeve lightning arrester structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214203342U true CN214203342U (en) | 2021-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022932585.4U Active CN214203342U (en) | 2020-12-07 | 2020-12-07 | Composite outer sleeve lightning arrester structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214203342U (en) |
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2020
- 2020-12-07 CN CN202022932585.4U patent/CN214203342U/en active Active
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