CN202900914U - Compound insulation stay bolt - Google Patents
Compound insulation stay bolt Download PDFInfo
- Publication number
- CN202900914U CN202900914U CN 201220557680 CN201220557680U CN202900914U CN 202900914 U CN202900914 U CN 202900914U CN 201220557680 CN201220557680 CN 201220557680 CN 201220557680 U CN201220557680 U CN 201220557680U CN 202900914 U CN202900914 U CN 202900914U
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- CN
- China
- Prior art keywords
- anode
- cathode
- insulation
- stainless steel
- bolt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a compound insulation stay bolt. At present, when rectification arm elements are pressed, usually a mode that an insulation tube is sleeved outside a stainless steel bolt is adopted; because sometimes when operating, equipment is high in temperature and is associated with slight vibration, an insulation sleeve is easy to fracture or age, and insulation intensity between an anode and a cathode and the stainless steel bolt reduces; and under the condition of high working voltage, the anode and the cathode and the stainless steel bolt simultaneously discharge, and therefore the anode and the cathode easily cause a short circuit and system failure. The compound insulation stay bolt comprises an insulation rod and stainless steel sleeves. Two ends of the insulation rod are respectively provided with the stainless steel sleeves. The compound insulation stay bolt can completely separate the anode and the cathode of the rectification arm, even the anode and the cathode of the rectification arm simultaneously discharge at two ends of an insulation pull rod, the short circuit of the anode and the cathode can not be caused, and the hidden danger that because elements are pressed, the short circuit of the anode and the cathode of the rectification arm is caused is eliminated.
Description
Technical field
The utility model belongs to the power electronic equipment technical field, is specifically related to a kind of composite insulated pull-rod bolt.
Background technique
Along with improving constantly of rectified power, the output voltage of rectifier is more and more higher, and output current is also increasing.For high-power rectifying device, when its rectifier arm adopt with contrary and connecting mode the time, positive pole and the insulating strength between the negative pole of rectifier arm output are most important.Mostly adopt stainless steel bolt to add the mode of cover insulation tube when the rectifier arm element press-fits at present, owing to have temperature higher during the equipment operation, and with slight vibration, easily cause spaghetti to break or aging, cause that the insulating strength between both positive and negative polarity and the stainless steel bolt descends, in the very high situation of operating voltage, when discharging simultaneously between both positive and negative polarity and the stainless steel bolt, anodal and negative pole easily causes short circuit, causes the system failure.
The model utility content
The technical problem that the utility model solves provides and has a kind ofly overcome prior art and may make anodal and the negative pole short circuit, causes the system failure, causes the composite insulated pull-rod bolt of huge economic loss.
For solving above-mentioned technical problem, the technological scheme that the utility model is taked:
A kind of composite insulated pull-rod bolt, its special way is: comprise insulating rod, stainless steel sleeve, the two ends of insulating rod arrange respectively stainless steel sleeve.
The diameter of above-mentioned stainless steel sleeve inwall cooperates with the internal diameter of insulating rod outer wall.
Compared with prior art, the utility model can be thoroughly separates positive and negative the two poles of the earth of rectifier arm, even discharge into the insulated tension pole two ends during rectifier arm positive and negative electrodes in same, can not cause the positive and negative polarities short circuit yet, eliminated because of element and press-fited the hidden danger that causes the positive and negative short circuit of rectifier arm.
Description of drawings
Fig. 1 is structural drawing of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Referring to Fig. 1, the utility model comprises insulating rod 1, stainless steel sleeve 2, and the two ends of insulating rod 1 arrange respectively stainless steel sleeve 2.
The diameter of above-mentioned stainless steel sleeve 2 inwalls cooperates with the internal diameter of insulating rod 1 outer wall.
Two ends of the present utility model are metallic material, and the centre is insulating material, and the two is crimped on together by technological method, insulate in insulating rod 1 two ends, and the mechanical bearing capacity of whole bolt is very high, can satisfy the technological requirement that cophase counter parallel connection rectifier arm element press-fits.
Claims (2)
1. composite insulated pull-rod bolt, it is characterized in that: comprise insulating rod (1), stainless steel sleeve (2), the two ends of insulating rod (1) arrange respectively stainless steel sleeve (2).
2. a kind of composite insulated pull-rod bolt according to claim 1, it is characterized in that: the diameter of described stainless steel sleeve (2) inwall cooperates with the internal diameter of insulating rod (1) outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220557680 CN202900914U (en) | 2012-10-29 | 2012-10-29 | Compound insulation stay bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220557680 CN202900914U (en) | 2012-10-29 | 2012-10-29 | Compound insulation stay bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202900914U true CN202900914U (en) | 2013-04-24 |
Family
ID=48121589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220557680 Expired - Lifetime CN202900914U (en) | 2012-10-29 | 2012-10-29 | Compound insulation stay bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202900914U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807268A (en) * | 2014-03-13 | 2014-05-21 | 常熟市平冶机械有限公司 | Insulating bolt |
| CN105909649A (en) * | 2016-04-05 | 2016-08-31 | 福建帆新能源装备制造有限公司 | General bolt group preventing deformation of flange bolt hole |
-
2012
- 2012-10-29 CN CN 201220557680 patent/CN202900914U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807268A (en) * | 2014-03-13 | 2014-05-21 | 常熟市平冶机械有限公司 | Insulating bolt |
| CN105909649A (en) * | 2016-04-05 | 2016-08-31 | 福建帆新能源装备制造有限公司 | General bolt group preventing deformation of flange bolt hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |
|
| CX01 | Expiry of patent term |