CN114334320B - High-load impact-resistant resistor - Google Patents
High-load impact-resistant resistor Download PDFInfo
- Publication number
- CN114334320B CN114334320B CN202111480472.8A CN202111480472A CN114334320B CN 114334320 B CN114334320 B CN 114334320B CN 202111480472 A CN202111480472 A CN 202111480472A CN 114334320 B CN114334320 B CN 114334320B
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- resistor
- load impact
- resistor core
- high load
- hook
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- 239000002184 metal Substances 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 description 5
- 238000004804 winding Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The invention relates to the technical field of resistors, in particular to a high-load impact-resistant resistor which comprises an insulating column body and a plurality of resistor core strips, wherein the insulating column body is in a strip shape; the two side parts of the resistor core belt are outwards bent to form the hook parts, the bottom of the accommodating groove is provided with the hook groove, and the hook parts of the resistor core belt are embedded into the hook grooves of the corresponding accommodating groove, so that the resistor core belt is radially locked. Compared with the linear resistor, the resistor has larger current carrying area, the resistor core belt is radially and stably fixed in the accommodating groove, different resistor core belts are positioned in different accommodating grooves to be separated, the resistor core belts are not attracted to each other and are close to each other, the insulating performance is good, and the resistor core belt is not easy to deform or separate and has stable structure.
Description
Technical Field
The invention relates to the technical field of resistors, in particular to a high-load impact-resistant resistor.
Background
When the outdoor high-voltage power switch shunts current to the zero-voltage submodule capacitor, the power switch needs to be provided with a starting resistor to prevent the problem that the starting current is impacted excessively to cause fuse burning or tripping of the switching power supply. The high-power resistor is widely applied to an energy consumption control system taking a variable frequency motor as power, a starting, speed regulating and braking control system of an industrial motor, and a neutral point grounding resistor in a simulated load and distribution system of various industrial electric appliances. The existing high-power resistors mainly comprise a wire-wound resistor, a thick film resistor and a chip resistor.
The existing winding resistor comprises an insulating cylinder and a resistor wire wound on the outer surface of the insulating cylinder, and the resistor wire is stuck on the outer surface of the insulating cylinder, so that the winding resistor is relatively stable, but the cross section of the resistor wire is small, the current limit value which can be born is limited, and the shock resistance is relatively weak. The existing chip resistor comprises a plurality of parallel resistor pieces, and the current-carrying section of the resistor pieces is large, but two adjacent resistor pieces are easy to attract each other under the impact of high current, so that the insulation performance is affected.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a high-load impact-resistant resistor which has large current-carrying area and good high-current impact resistance.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the high-load impact-resistant resistor comprises an insulating column body and a plurality of resistor core strips, wherein the insulating column body is in a strip shape, a plurality of storage grooves are formed in the outer side of the insulating column body along the circumferential direction, the resistor core strips are V-shaped metal long strips, the plurality of resistor core strips are embedded in different storage grooves in an inward opening mode, and the storage grooves are axially extended from the two end portions of the resistor core strips to be electrically connected with each other; the two side parts of the resistor core belt are outwards bent to form the hook parts, the bottom of the accommodating groove is provided with the hook groove, and the hook parts of the resistor core belt are embedded into the hook grooves of the corresponding accommodating groove, so that the resistor core belt is radially locked.
Specifically, the opening of the storage groove is gradually reduced outwards, so that the side wall of the resistor core belt is attached to the groove wall of the storage groove by means of self elasticity.
Specifically, the hook groove and the hook portion are both arc-shaped and curved, and the degree of curvature is greater than 180 °.
Specifically, the bending part of the middle part of the resistor core belt is lower than the outline circle of the insulating cylinder; or tangent to the outer contour circle of the insulating cylinder.
Specifically, conducting rings are arranged at two ends of the insulating cylinder, and a plurality of resistor core belts are respectively and electrically connected with the conducting rings.
Specifically, the both ends welding of every resistance core area has the stationary blade, and the stationary blade is opened there is first mounting hole, and first mounting hole department welding has the nut, and the conducting ring is opened there is the second mounting hole, and first mounting hole, second mounting hole and nut wear to be equipped with the bolt to fix conducting ring and stationary blade mutually electrically conductively.
Specifically, the conducting ring is fixed with binding post, and binding post is equipped with the wiring hole.
Specifically, the insulating cylinder is a ceramic body.
Specifically, the center of the insulating cylinder is provided with a middle hole, the middle hole is inserted with a supporting cylinder, two ends of the supporting cylinder penetrate out of the insulating cylinder, and two ends of the supporting cylinder are fixed with brackets, so that the insulating cylinder is erected.
Specifically, the insulating cylinder is formed by a plurality of splicing blocks in a detachable mode along the axial direction.
The invention has the beneficial effects that:
compared with the prior art, the high-load impact-resistant resistor has the advantages that the metal strip is adopted as the resistor core strip, compared with the linear resistor, the current carrying area is larger, the lock hook part of the resistor core strip is embedded into the hook groove of the insulating cylinder, so that the resistor core strip is stably fixed in the storage groove in the radial direction, different resistor core strips are positioned in different storage grooves and separated from each other, the resistor core strips are not attracted and close to each other, the insulating property is good, and the resistor core strip is not easy to deform or separate from the resistor core strip, and has a stable structure.
The stability of the winding resistor is skillfully combined with the advantage of the large current carrying area of the chip resistor, so that the high-load high-current impact can be borne, and the requirement of large current carrying area conduction can be met. Breaks the technical obstacle that the strip resistor can not be combined with the insulating column body in the conventional thinking.
Drawings
Fig. 1 is a schematic structural view of a high load impact resistance resistor in an embodiment.
Fig. 2 is a cross-sectional view of a high load impact resistance resistor in an embodiment.
Fig. 3 is a schematic structural view of an insulating body of a high-load impact-resistant resistor in an embodiment.
Fig. 4 is a schematic diagram of a resistor with high load impact resistance, which is formed by combining a resistor core band with a fixing sheet.
Fig. 5 is a schematic structural diagram of a high load impact resistance resistor in another embodiment.
Reference numerals:
an insulating column 1, a storage groove 11 and a hook groove 12;
a resistor core band 2 and a latch hook portion 21;
a conductive ring 3, a second mounting hole 31;
a fixing piece 4 and a first mounting hole 41;
binding post 5, support cylinder 6, support 7.
Detailed Description
The present invention will be described in detail with reference to specific embodiments and drawings.
The high-load impact-resistant resistor of the embodiment, as shown in fig. 1 to 4, comprises an insulation column 1 and a plurality of resistor core strips 2, wherein the insulation column 1 is a long cylindrical ceramic body, a plurality of storage grooves 11 are circumferentially formed in the outer side of the insulation column 1, the resistor core strips 2 are long metal strips in a V shape, the openings of the resistor core strips 2 are inwards buckled in the different storage grooves 11, and the two end parts of the resistor core strips 2 axially extend out of the storage grooves 11 to be electrically connected with each other. The two side parts of the resistor core band 2 are outwards bent to form the hook parts 21, the bottom of the accommodating groove 11 is extended with the hook groove 12 with the width similar to the thickness of the resistor core band 2, and the hook parts 21 of the resistor core band 2 are embedded into the hook grooves 12 of the corresponding accommodating groove 11, so that the resistor core band 2 is hooked in the radial direction.
Compared with the prior art, because the metal long strip is adopted as the resistor core strip 2, compared with the linear resistor, the resistor core strip 2 has larger current carrying area, and the latch hook part 21 of the resistor core strip 2 is embedded into the latch groove 12 of the insulating cylinder 1, so that the resistor core strip 2 is radially and stably fixed in the storage groove 11, different resistor core strips 2 are positioned in different storage grooves 11 and separated from each other, and are not attracted to be close to each other, so that the resistor core strip has good insulating property, is not easy to deform or separate, and has stable structure.
The stability of the winding resistor is skillfully combined with the advantage of the large current carrying area of the chip resistor, so that the high-load high-current impact can be borne, and the requirement of large current carrying area conduction can be met. Breaks the technical obstacle that the strip resistor can not be combined with the insulating column body in the conventional thinking.
In this embodiment, the opening of the accommodating groove 11 is gradually reduced outwards, so that the side wall of the resistor core band 2 is elastically attached to the groove wall of the accommodating groove 11 in an interference fit manner by means of V-shaped expansion, and the resistor core band 2 is more stable.
In this embodiment, the hook groove 12 and the hook portion 21 are both arc-curved, and the degree of curvature is greater than 180 °, so that the radial locking force is enhanced, and the resistor core band 2 is inserted into the receiving groove 11 from the axial direction during installation.
In the embodiment, the bending part of the middle part of the resistor core belt 2 is lower than the outline circle of the insulating cylinder 1; or tangent to the outer contour circle of the insulating cylinder 1, reduces the probability of collision of peripheral devices with the resistor core belt 2, and plays a role in protection.
In this embodiment, for the electrical connection between the plurality of resistive core strips 2, this is achieved: the conducting rings 3 are arranged at the two ends of the insulating cylinder 1, the fixing plates 4 are welded at the two ends of each resistor core strip 2, the fixing plates 4 are provided with first mounting holes 41, nuts are welded at the first mounting holes 41, the conducting rings 3 are provided with second mounting holes 31, and bolts are arranged through the first mounting holes 41, the second mounting holes 31 and the nuts, so that the conducting rings 3 and the fixing plates 4 are fixed in a conducting manner. The conductive ring 3 is fixed with a connection terminal 5, the connection terminal 5 being provided with a connection hole for connecting different resistors electrically or with peripheral use equipment through conductive wires.
In this embodiment, a central hole is formed in the center of the insulating column 1, a supporting column 6 is inserted through the central hole, two ends of the supporting column 6 penetrate out of the insulating column 1, and two ends of the supporting column 6 are fixed with brackets 7, so that the insulating column 1 is erected.
In another embodiment, as shown in fig. 5, the insulation column 1 may be formed by detachably splicing a plurality of splicing blocks along the axial direction instead, and the splicing blocks with different numbers may be selected according to the length of the resistor core band 2, so that the applicability is higher. As regards the connection between the segments, the manner of the hooks or threads can be chosen.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Claims (10)
1. A high load impact resistance resistor characterized by: the resistor core strip is a V-shaped metal long strip, the plurality of resistor core strips are embedded into different accommodating grooves with openings inwards, and the two end parts of the resistor core strip axially extend out of the accommodating grooves to be electrically connected with each other; the two side parts of the resistor core belt are outwards bent to form the hook parts, the bottom of the accommodating groove is provided with the hook groove, and the hook parts of the resistor core belt are embedded into the hook grooves of the corresponding accommodating groove, so that the resistor core belt is radially locked.
2. A high load impact resistant resistor as defined in claim 1, wherein: the opening of the storage groove is gradually reduced outwards, so that the side wall of the resistor core belt is attached to the groove wall of the storage groove by means of elasticity.
3. A high load impact resistant resistor as defined in claim 1, wherein: the hook groove and the hook part are arc-shaped and have a bending degree larger than 180 degrees.
4. A high load impact resistant resistor as defined in claim 1, wherein: the middle bending part of the resistor core belt is lower than the outer contour circle of the insulating cylinder; or tangent to the outer contour circle of the insulating cylinder.
5. A high load impact resistant resistor as defined in claim 1, wherein: conductive rings are arranged at the two ends of the insulating cylinder, and a plurality of resistor core belts are respectively and electrically connected with the conductive rings.
6. A high load impact resistor according to claim 5, characterized in that: the two ends of each resistor core strip are welded with fixing plates, the fixing plates are provided with first mounting holes, nuts are welded at the first mounting holes, the conducting rings are provided with second mounting holes, and bolts are arranged through the first mounting holes, the second mounting holes and the nuts, so that the conducting rings and the fixing plates are fixed in a conductive manner.
7. A high load impact resistor according to claim 5, characterized in that: the conducting ring is fixed with binding post, and binding post is equipped with the wiring hole.
8. A high load impact resistant resistor as defined in claim 1, wherein: the insulating cylinder is a ceramic body.
9. A high load impact resistant resistor according to claim 1 or 8, characterized in that: the center of the insulating cylinder is provided with a middle hole, the middle hole is penetrated with a supporting cylinder, two ends of the supporting cylinder penetrate out of the insulating cylinder, and two ends of the supporting cylinder are fixedly provided with brackets, so that the insulating cylinder is erected.
10. A high load impact resistant resistor according to claim 1 or 8, characterized in that: the insulating column body is formed by detachably splicing a plurality of splicing blocks along the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111480472.8A CN114334320B (en) | 2021-12-06 | 2021-12-06 | High-load impact-resistant resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111480472.8A CN114334320B (en) | 2021-12-06 | 2021-12-06 | High-load impact-resistant resistor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114334320A CN114334320A (en) | 2022-04-12 |
| CN114334320B true CN114334320B (en) | 2024-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111480472.8A Active CN114334320B (en) | 2021-12-06 | 2021-12-06 | High-load impact-resistant resistor |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680778A (en) * | 2013-12-13 | 2014-03-26 | 株洲南车奇宏散热技术有限公司 | Water-cooling resistor for variable-frequency cabinet and manufacturing method thereof |
| CN109448941A (en) * | 2018-11-02 | 2019-03-08 | 南京华冶重工科技发展有限公司 | A kind of rock-steady structure aoxidizing film resistance |
| CN209027342U (en) * | 2018-09-03 | 2019-06-25 | 扬州杰豪有色金属制品有限公司 | A kind of detachable heat-dissipating pipe |
| CN112038025A (en) * | 2020-09-10 | 2020-12-04 | 深圳市开步电子有限公司 | Resistor and packaging method thereof |
-
2021
- 2021-12-06 CN CN202111480472.8A patent/CN114334320B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680778A (en) * | 2013-12-13 | 2014-03-26 | 株洲南车奇宏散热技术有限公司 | Water-cooling resistor for variable-frequency cabinet and manufacturing method thereof |
| CN209027342U (en) * | 2018-09-03 | 2019-06-25 | 扬州杰豪有色金属制品有限公司 | A kind of detachable heat-dissipating pipe |
| CN109448941A (en) * | 2018-11-02 | 2019-03-08 | 南京华冶重工科技发展有限公司 | A kind of rock-steady structure aoxidizing film resistance |
| CN112038025A (en) * | 2020-09-10 | 2020-12-04 | 深圳市开步电子有限公司 | Resistor and packaging method thereof |
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| Publication number | Publication date |
|---|---|
| CN114334320A (en) | 2022-04-12 |
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