CN210957032U - Connecting device for self healing of power equipment connector - Google Patents
Connecting device for self healing of power equipment connector Download PDFInfo
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- CN210957032U CN210957032U CN201920746904.7U CN201920746904U CN210957032U CN 210957032 U CN210957032 U CN 210957032U CN 201920746904 U CN201920746904 U CN 201920746904U CN 210957032 U CN210957032 U CN 210957032U
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- temperature metal
- connecting conductor
- memory alloy
- joint
- low temperature
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Abstract
The utility model discloses a power equipment connects connecting device of self-healing, include screw rod, upper and lower nut, by connecting conductor, memory alloy intelligence gasket and low temperature metal. The utility model discloses an adopt the cooperation of low temperature metal and memory alloy intelligence gasket in the middle of by connecting conductor to use, it generates heat by connecting conductor joint to meet the current increase, memory alloy intelligence gasket meets temperature rise can single-phase transition automatic output pressure, the low temperature metal extrusion after will melting spreads to by connecting conductor contact gap department increase joint contact surface, because the gap is filled by low temperature metal, the air can not permeate in the contact, can not form the oxide film by connecting conductor metal surface, the contact surface has been increased, let the current distribution even, thereby reduce resistance, reach the purpose of the self-healing formula cooling of the point that generates heat. The low-temperature metal replaces the traditional conductive adhesive to increase the conductive efficiency of the equipment joint.
Description
Technical Field
The invention relates to the technical field of power installation, in particular to a self-healing connecting device for a power equipment connector.
Background
The electrical equipment joint is generally connected by bolts commonly, when the joint is overheated due to winter and summer climate change or too high current density, expansion can be caused, the expansion coefficient of copper and aluminum is larger than that of steel, when the temperature is reduced due to bus current reduction and the like, the bus joint can not expand freely, when the temperature is reduced due to bus current reduction and the like, the contraction of the bus is larger than that of the bolts, so that the pressure is reduced, a gap is formed, at the moment, the position of a contact surface is staggered, the contact pressure is reduced, and the contact resistance is increased. The temperature rise causes the bus contact surface to be oxidized, the direct contact of the original joint metal surface is damaged, the formation of an oxide film is avoided, and the contact resistance is larger. The contact resistance is increased by each temperature change cycle, the heat is increased by the next cycle, the contact is further deteriorated by the higher temperature, the metal can creep under the traditional metal pressure when the existing power joint is installed, the pressure of the contact is reduced along with the time, the creep is also reduced until the pressure is reduced to be not deformed, the pressure relaxation rate is closely related to the operation temperature, the creep size depends on the temperature to a greater extent, the temperature change is the reason of gradual deterioration of the joint of the electrical equipment, the interaction of the thermal motion stress and the creep can form a vicious cycle, the bolt connecting part can generate heat finally, the joint can be burned out finally when the temperature is serious, the safe operation of the equipment is influenced, and in addition, a layer of oxidation film is generally generated in the air by the metal. If the oxide film is not removed, the contact resistance is still high. Even if the oxide film is cleaned, if the oxide film is not isolated from air, a new oxide film is immediately generated. It is known that strict regulations and requirements are required for the treatment of the contact surface of the joint of the electrical equipment because air and moisture are seriously permeated into the joint after the oxide film is cracked, thereby corroding the joint and accelerating the oxidation to increase the electrical resistance. Currently, there is no effective connection method to solve the above problems. Therefore, we developed a self-healing connection device for electrical equipment connectors.
Disclosure of Invention
In view of the above, the present invention provides a self-healing connection device for electrical equipment joints, which can solve the above problems in the prior art
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention relates to a connecting device for self healing of a power equipment connector, which comprises a screw, an upper nut, a lower nut, a connected conductor, a memory alloy intelligent gasket and low-temperature metal, wherein the connected conductor is divided into two parts and is fixedly connected through the upper nut and the lower nut respectively, the memory alloy intelligent gasket is arranged between the upper part of the upper nut and the upper part of the connected conductor, a flat pad is arranged between the lower part of the upper nut and the lower part of the lower nut and the lower part of the connected conductor, and the low-temperature metal is arranged between the connected conductors.
Preferably, the connection method comprises three steps, namely, preparing a low-temperature metal with proper thickness to be placed between two connected conductors.
And step two, penetrating the screw rod through the connected conductor, sleeving the memory alloy intelligent gasket on the upper part, and sleeving the flat gasket on the lower part.
And step three, rotationally matching the upper nut and the lower nut until the upper nut and the lower nut are free of clearance.
The invention has the beneficial effects that: through the cooperation of adopting low temperature metal and memory alloy intelligence gasket in the middle of by connecting conductor, it generates heat by connecting conductor joint to increase as the electric current, memory alloy intelligence gasket meets temperature rise can single-phase transition automatic output pressure, the low temperature metal extrusion after will melting spreads to and is increased the joint contact surface by connecting conductor contact gap department, because the gap is filled by low temperature metal, the air can not permeate in the contact, can not form the oxide film by connecting conductor metal surface, the contact surface has been increased, let the current distribution even, thereby reduce resistance, reach the purpose of the self-healing cooling of the point of generating heat. The low-temperature metal replaces the traditional conductive adhesive to increase the conductive efficiency of the equipment joint.
The invention relates to a connecting device for self healing of a power equipment connector, which comprises a screw, an upper nut, a lower nut, a connected conductor, a memory alloy intelligent gasket and low-temperature metal, wherein the connected conductor is divided into two parts and is fixedly connected through the upper nut and the lower nut respectively, the memory alloy intelligent gasket is arranged between the upper part of the upper nut and the upper part of the connected conductor, a flat pad is arranged between the lower part of the upper nut and the lower part of the lower nut and the lower part of the connected conductor, and the low-temperature metal is arranged between the connected conductors.
Further, the connecting method comprises three steps, namely, preparing low-temperature metal with proper thickness to be placed between two connected conductors.
And step two, penetrating the screw rod through the connected conductor, sleeving the memory alloy intelligent gasket on the upper part, and sleeving the flat gasket on the lower part.
And step three, rotationally matching the upper nut and the lower nut until the upper nut and the lower nut are free of clearance. By combining the structure with the design scheme, the invention can fully solve the problems that when the power connector is installed, metal can creep under the traditional metal pressure, the pressure of the contact head can be reduced along with the time, the creep is also reduced, until the pressure is reduced to no longer deform, the pressure is relaxed and is oxidized by gaps at the connecting point, finally, the bolt connecting part generates heat, and the connector is burned out finally in serious cases to influence the safe operation of equipment. Put through low temperature metal and fill in by the connecting conductor centre, it generates heat by the connecting conductor joint to increase as the electric current, memory alloy intelligence gasket meets temperature rise can single-phase transition automatic output pressure, low temperature metal extrusion after will melting spreads to by the increasing contact surface of connecting conductor contact gap department, because the gap is filled by low temperature metal, the air can not infiltrate in the contact, can not form the oxide film by the connecting conductor metal surface, the contact surface has been increased, let the current distribution even, thereby reduce resistance, reach the purpose of the some self-healing cooling that generates heat. The low-temperature metal replaces the traditional conductive adhesive to increase the conductive efficiency of the equipment joint.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the present invention.
In the figure: 1. the device comprises a screw, 2 parts of an upper nut and a lower nut, 3 parts of a connected conductor, 4 parts of a memory alloy intelligent gasket, 5 parts of a flat gasket and 6 parts of low-temperature metal.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in fig. 1, the connecting device for self healing of the power equipment joint comprises a screw rod 1, an upper nut and a lower nut 2, a connected conductor 3, a memory alloy intelligent gasket 4 and a low-temperature metal 6, wherein the connected conductor 3 is divided into two parts and is fixedly connected with the two parts through the upper nut and the lower nut 2, the memory alloy intelligent gasket 4 is arranged between the upper part of the upper nut and the upper part of the connected conductor 3, a flat gasket 5 is arranged between the lower part of the upper nut and the lower nut 2 and the lower part of the connected conductor 3, and the low-temperature metal 6 is arranged between the connected conductors 3.
According to the self-healing connecting device for the power equipment connector, the low-temperature metal 6 is placed in the middle of the connected conductor 3 for filling, when the current is increased and the connected conductor 3 is heated, the memory alloy intelligent gasket 4 can automatically output pressure through single-phase change when the temperature rises, the melted low-temperature metal 6 is extruded and diffused to the gap of the contact of the connected conductor 3 to increase the contact surface of the connector, air cannot permeate into the contact due to the fact that the gap is filled with the low-temperature metal 6, an oxidation film cannot be formed on the metal surface of the connected conductor 3, the contact surface is increased, the current is uniformly distributed, and therefore the resistance is reduced, and the purpose of self-healing cooling of a heating point is achieved. The low-temperature metal 6 replaces the traditional conductive adhesive to increase the conductive efficiency of the equipment joint.
Wherein the connecting method comprises three steps, namely, preparing a low-temperature metal 6 with proper thickness to be placed between two connected conductors 3.
And step two, the screw 1 penetrates through the connected conductor 3, the memory alloy intelligent gasket 4 is sleeved on the upper part, and the flat gasket 5 is sleeved on the lower part.
And step three, the upper nut and the lower nut are matched and screwed until no gap exists.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent substitutions made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (1)
1. Connecting device that power equipment connects self-healing includes screw rod (1), upper and lower nut (2), by connecting conductor (3), memory alloy intelligence gasket (4) and low temperature metal (6), its characterized in that: the connecting conductor (3) is divided into two parts, the two parts are fixedly connected through an upper nut and a lower nut (2), a memory alloy intelligent gasket (4) is arranged between the upper part of the upper nut and the upper part of the connected conductor (3), a flat gasket (5) is arranged between the lower part of the upper nut and the lower part of the lower nut (2) and the lower part of the connected conductor (3), and low-temperature metal (6) is arranged between the connected conductor (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920746904.7U CN210957032U (en) | 2019-05-23 | 2019-05-23 | Connecting device for self healing of power equipment connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920746904.7U CN210957032U (en) | 2019-05-23 | 2019-05-23 | Connecting device for self healing of power equipment connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210957032U true CN210957032U (en) | 2020-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920746904.7U Expired - Fee Related CN210957032U (en) | 2019-05-23 | 2019-05-23 | Connecting device for self healing of power equipment connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210957032U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111987488A (en) * | 2019-05-23 | 2020-11-24 | 广州华嘉电力科技有限公司 | Connecting device and method for self healing of power equipment connector |
-
2019
- 2019-05-23 CN CN201920746904.7U patent/CN210957032U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111987488A (en) * | 2019-05-23 | 2020-11-24 | 广州华嘉电力科技有限公司 | Connecting device and method for self healing of power equipment connector |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200707 Termination date: 20210523 |