CN210110693U - Drop out fuse tube moving contact end conductive cap device - Google Patents
Drop out fuse tube moving contact end conductive cap device Download PDFInfo
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- CN210110693U CN210110693U CN201920857741.XU CN201920857741U CN210110693U CN 210110693 U CN210110693 U CN 210110693U CN 201920857741 U CN201920857741 U CN 201920857741U CN 210110693 U CN210110693 U CN 210110693U
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- conductive
- moving contact
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- spring
- hood
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Abstract
The utility model relates to an electric power field, more specifically relates to a drop out fuse tube moving contact end conductive cap device, including last moving contact conductive cap, conductive spring and conductive hood, last moving contact conductive cap be bottom opening, the inclosed tube-shape in top, a pot head of last moving contact conductive cap establish in conductive hood, go up the moving contact conductive cap's one end and conductive hood between through conductive spring coupling. The utility model discloses can replace the effect of going up static contact inner spring structure temporarily, can in time resume the power supply after changing, reduce power off time and latency, improve the reliability of power supply, and the utility model discloses convenient the change, easy to use.
Description
Technical Field
The utility model relates to an electric power field, more specifically relates to a drop out fuse tube moving contact end conductive cap device.
Background
At present, the outdoor drop-out fuse is commonly used in an electric power system with 50HZ alternating current and 10KV rated voltage, and is used for overload and short-circuit protection of a power transmission and distribution line and a power transformer and for on-off rated load charging in the electric power system. Widely used outdoor drop-out fuses are of types RW7, RW11, RW12, and the like. The working principle is that moving contacts at two ends of a fuse tube are tied by a fuse wire, and an upper moving contact is pushed into an upper static contact made of a phosphor copper sheet and the like to be compressed by a top end spring structure. When short-circuit current passes through the fuse wire, the fuse wire is fused, the upper moving contact and the lower moving contact of the fuse wire lose the fastening force of the fuse wire, and the fuse wire falls rapidly under the action of the gravity of the fuse wire and the upper static head spring leaf and the lower static head spring leaf, so that a circuit is disconnected, and a fault section line or fault equipment is cut off.
However, in the working process, the fuse tube still has the condition of non-fault dropping, and because the drop-out fuse is operated in an outdoor environment for a long time, various severe weather conditions cause the static contact spring to lose the original elasticity, or the static and dynamic contacts are not contacted tightly enough in the operation process, so that the static contact spring and the spring are burnt by discharging, which is a main reason for causing the non-fault dropping of the fuse tube. When the non-fault falling condition occurs, the spring structure at the top end in the upper static contact is damaged, the upper static contact cannot be closed again to supply power in time, the power failure time is too long in the process of waiting for maintenance and replacement, even if the drop-out switch is replaced by hot-line work, a series of related procedures consume a large amount of time, and the power supply reliability is greatly reduced.
SUMMERY OF THE UTILITY MODEL
In order to solve the not enough of time spent too long when falling of non-trouble of drop out fuse among the prior art, the utility model provides a drop out fuse tube moving contact end conductive cap device.
In order to solve the technical problem, the technical scheme of the utility model as follows:
a drop out fuse tube moving contact end conducting cap device comprises an upper moving contact conducting cap, a conducting spring and a conducting hood, wherein the upper moving contact conducting cap is in a cylindrical shape with an opening at the bottom and an airtight top, one end of the upper moving contact conducting cap is sleeved in the conducting hood, and one end of the upper moving contact conducting cap is connected with the conducting hood through the conducting spring.
When the outdoor drop-out fuse is in non-fault drop-out, an upper moving contact conducting cap of a conducting cap device is fixed with the upper end of a fuse tube, a conducting spring is compressed to adjust the position of a conducting hood, the conducting hood is connected with the duck tongue end of the conducting part at the top end of the drop-out circuit breaker, the conducting spring is loosened, the conducting hood presses the duck tongue end of the conducting part at the top end of the drop-out circuit breaker under the pressure of the spring, a power system recovers power supply, and after the approval procedure of power failure is completed, the conducting cap device is taken down and replaced with a new drop-out fuse.
Preferably, the upper moving contact conductive cap comprises a contact part and a connecting part, the contact part is connected with the connecting part, the contact part and the connecting part are both in a cylindrical shape, and the contact part is connected with the conductive spring.
Preferably, the radius of the contact part is smaller than that of the connecting part, and the radius of the connecting part is the same as the outer diameter of the conductive cap.
Preferably, the inner wall of the connecting part is provided with threads, and the upper moving contact conductive cap is connected with the upper end of the fuse tube through the threads of the connecting part, so that the fuse tube is convenient and rapid to use and easy to install and disassemble.
Preferably, the conductive spring is connected with the upper moving contact conductive cap and the conductive hood cap through welding, and the reliability and the stability of the device can be improved through the welding connection.
Preferably, the conductive spring is made of a copper material, and the conductivity of the spring is improved by the copper material.
Compared with the prior art, the utility model discloses technical scheme's beneficial effect is:
the utility model discloses can replace the effect of going up static contact inner spring structure temporarily, can in time resume the power supply after changing, reduce power off time and latency, improve the reliability of power supply, and the utility model discloses convenient the change, easy to use.
Drawings
Fig. 1 is a diagram of the structure of the device of the present invention.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent;
for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product;
it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.
Example 1
As shown in fig. 1, the present embodiment provides a conductive cap device for a moving contact end of a fuse tube of a drop-out fuse, which includes an upper moving contact conductive cap 1, a conductive spring 3 and a conductive hood 2, wherein the upper moving contact conductive cap 1 has a cylindrical shape with an open bottom and a closed top, one end of the upper moving contact conductive cap 1 is sleeved in the conductive hood 2, and one end of the upper moving contact conductive cap 1 is connected to the conductive hood 2 through the conductive spring 3.
When the outdoor drop-out fuse is in non-fault drop-out, an upper moving contact conductive cap 1 of a conductive cap device is fixed with the upper end of a fuse tube, a conductive spring 3 is compressed to adjust the position of a conductive hood 2, the conductive hood 2 is connected with a duck tongue end of a conductive part at the top end of the drop-out circuit breaker, the conductive spring 3 is loosened, the conductive hood 2 compresses the duck tongue end of the conductive part at the top end of the drop-out circuit breaker under the pressure of the conductive spring 3, a power system recovers power supply, and after an approval procedure of power failure is completed, the conductive cap device is taken down and replaced with a new drop-out fuse.
Example 2
As shown in fig. 1, in the present embodiment, the upper moving contact conductive cap 1 includes a contact portion 4 and a connection portion 5, the contact portion 4 is connected to the connection portion 5, the contact portion 4 and the connection portion 5 are both cylindrical, and the contact portion 4 is connected to the conductive spring 3.
In a preferred embodiment, the radius of the contact portion 4 is smaller than the radius of the connecting portion 5, and the radius of the connecting portion is the same as the outer diameter of the conductive cap 2.
As a preferred embodiment, the inner wall of the connecting portion 5 is provided with a thread, and the upper moving contact conductive cap 1 is connected with the upper end of the fuse tube through the thread of the connecting portion 5, so that the fuse tube is convenient and quick and is easy to install and disassemble.
As a preferred embodiment, the conductive spring 3 is connected with the upper movable contact conductive cap 1 and the conductive hood cap 2 by welding, and the reliability and stability of the device can be increased by the welding connection.
In a preferred embodiment, the conductive spring 3 is made of a copper material, and the conductivity of the spring can be improved by using the copper material.
The same or similar reference numerals correspond to the same or similar parts;
the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent;
it is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (6)
1. The utility model provides a drop out fuse tube moving contact end conducting cap device which characterized in that, includes moving contact conducting cap (1), conductive spring (3) and electrically conductive hood (2), last moving contact conducting cap (1) be bottom opening, the inclosed tube-shape in top, an pot head of last moving contact conducting cap (1) establish in electrically conductive hood (2), go up the moving contact and connect through conductive spring (3) between one end of moving contact conducting cap (1) and electrically conductive hood (2).
2. The device of claim 1, wherein the upper moving contact conductive cap (1) comprises a contact portion (4) and a connecting portion (5), the contact portion (4) is connected to the connecting portion (5), the contact portion (4) and the connecting portion (5) are both cylindrical, and the contact portion (4) is connected to the conductive spring (3).
3. A drop fuse tube moving contact terminal conducting cap assembly as claimed in claim 2, wherein said contact portion (4) has an outer diameter less than the outer diameter of said connecting portion (5), said connecting portion having an outer diameter the same as the inner diameter of said conducting cap (2).
4. A drop-out fuse tube movable contact terminal conducting cap assembly as claimed in claim 2, wherein said connecting portion (5) is threaded on its inner wall.
5. The device of claim 1, wherein the conductive spring (3) is connected to the upper movable contact conductive cap (1) and the conductive hood (2) by welding.
6. The device of claim 1, wherein said conductive spring (3) is a copper spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920857741.XU CN210110693U (en) | 2019-06-06 | 2019-06-06 | Drop out fuse tube moving contact end conductive cap device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920857741.XU CN210110693U (en) | 2019-06-06 | 2019-06-06 | Drop out fuse tube moving contact end conductive cap device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210110693U true CN210110693U (en) | 2020-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920857741.XU Active CN210110693U (en) | 2019-06-06 | 2019-06-06 | Drop out fuse tube moving contact end conductive cap device |
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| Country | Link |
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| CN (1) | CN210110693U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111584308A (en) * | 2020-03-23 | 2020-08-25 | 中国航天时代电子有限公司 | Replaceable contact device |
-
2019
- 2019-06-06 CN CN201920857741.XU patent/CN210110693U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111584308A (en) * | 2020-03-23 | 2020-08-25 | 中国航天时代电子有限公司 | Replaceable contact device |
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