CN114334320A - High-load impact-resistant resistor - Google Patents
High-load impact-resistant resistor Download PDFInfo
- Publication number
- CN114334320A CN114334320A CN202111480472.8A CN202111480472A CN114334320A CN 114334320 A CN114334320 A CN 114334320A CN 202111480472 A CN202111480472 A CN 202111480472A CN 114334320 A CN114334320 A CN 114334320A
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- resistor
- insulating cylinder
- load impact
- core
- high load
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- 239000002184 metal Substances 0.000 claims abstract description 6
- 238000005452 bending Methods 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention relates to the technical field of resistors, in particular to a high-load impact-resistant resistor, which comprises an insulating cylinder and a plurality of resistor core belts, wherein the insulating cylinder is in a long strip shape, a plurality of accommodating grooves are formed in the outer side of the insulating cylinder along the circumferential direction, the resistor core belts are V-shaped metal long strips, the plurality of resistor core belts are embedded into different accommodating grooves with openings facing inwards, and the accommodating grooves are axially extended from two end parts of the resistor core belts to be electrically connected with each other; the two side parts of the resistance core belt are bent outwards to form a hook locking part, a hook groove is formed at the bottom of the accommodating groove, and the hook locking part of the resistance core belt is embedded into the hook groove corresponding to the accommodating groove, so that the resistance core belt is locked in the radial direction. Compare linear resistance and have bigger current-carrying area, and the resistance core area is fixed in radially steadily accomodating the groove, and different resistance core areas are located different accomodating grooves and separate, and mutual actuation can not be close to, and insulating properties is good, is difficult to warp moreover or break away from stable in structure.
Description
Technical Field
The invention relates to the technical field of resistors, in particular to a high-load impact-resistant resistor.
Background
When an outdoor high-voltage power switch shunts current to a zero-voltage sub-module capacitor, the power switch needs to be provided with a starting resistor to prevent the problem that the starting current is too large 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, analog loads of various industrial electrical appliances and neutral point grounding resistors in a power distribution system. The existing high-power resistor mainly comprises a winding resistor, a thick-film resistor and a chip resistor.
The existing winding resistor comprises an insulating cylinder and a resistance wire wound on the outer surface of the insulating cylinder, wherein the resistance wire is attached to the outer surface of the insulating cylinder, so that the existing winding resistor is relatively stable, but the cross section of the resistance wire is small, the current limit value capable of being born is limited, and the shock resistance is relatively weak. The existing chip resistor comprises a plurality of resistor discs which are arranged in parallel, although the current-carrying section of the resistor disc is large, two adjacent resistor discs are easy to attract and approach each other under the impact of large current, and the insulation performance is influenced.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a high-load impact-resistant resistor which has a large current-carrying area and good large current impact resistance.
In order to achieve the purpose, the invention provides the following technical scheme:
the resistor with high load and impact resistance comprises an insulating cylinder and a plurality of resistor core belts, wherein the insulating cylinder is in a long strip shape, a plurality of accommodating grooves are formed in the outer side of the insulating cylinder along the circumferential direction, the resistor core belts are V-shaped metal long strips, the plurality of resistor core belts are embedded into different accommodating grooves with openings facing inwards, and two end parts of the resistor core belts axially extend out of the accommodating grooves to be electrically connected with each other; the two side parts of the resistance core belt are bent outwards to form a hook locking part, a hook groove is formed at the bottom of the accommodating groove, and the hook locking part of the resistance core belt is embedded into the hook groove corresponding to the accommodating groove, so that the resistance core belt is locked in the radial direction.
Specifically, the opening of the accommodating groove is gradually reduced outwards, so that the side wall of the resistor core belt is elastically attached to the groove wall of the accommodating groove.
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 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.
Specifically, conducting rings are arranged at two ends of the insulating column body, and the plurality of resistance core belts are respectively electrically connected with the conducting rings.
Specifically, the two ends of each resistance core belt are welded with fixing pieces, the fixing pieces are provided with first mounting holes, nuts are welded at the first mounting holes, the conducting ring is provided with second mounting holes, and bolts are arranged in the first mounting holes, the second mounting holes and the nuts in a penetrating mode, so that the conducting ring and the fixing pieces are fixed in a conductive mode.
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 opened with the mesopore, and the mesopore alternates there is the support cylinder, and outside the insulating cylinder was worn out at the both ends of support cylinder, the both ends of support cylinder are fixed with the support to put up the insulating cylinder.
Specifically, the insulating cylinder is formed by splicing a plurality of splicing blocks in an axially detachable mode.
The invention has the beneficial effects that:
compared with the prior art, the high-load impact-resistant resistor has the advantages that the metal long strip is used as the resistor core belt, the current carrying area of the resistor is larger than that of a linear resistor, the lock hook part of the resistor core belt is embedded into the hook bending groove of the insulating cylinder, so that the resistor core belt is stably fixed in the accommodating groove in the radial direction, different resistor core belts are positioned in different accommodating grooves and separated, the resistor core belts cannot be attracted and close to each other, the insulating property is good, the resistor core belts are not easy to deform or separate, and the structure is stable.
The stability of the winding resistor is ingeniously combined with the advantage of large current-carrying area of the chip resistor, so that the high-load large-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 cylinder in the conventional thinking.
Drawings
Fig. 1 is a schematic structural diagram of a high-load impact-resistant resistor in the embodiment.
Fig. 2 is a sectional view of a high-load impact-resistant resistor in the embodiment.
Fig. 3 is a schematic structural diagram of an insulating body of a high-load impact-resistant resistor in an embodiment.
Fig. 4 is a schematic structural view of a resistor core band combined with a stator of the high load impact resistance resistor in the embodiment.
Fig. 5 is a schematic structural diagram of a high-load impact-resistant resistor in another embodiment.
Reference numerals:
an insulating column body 1, a receiving groove 11 and a hook groove 12;
a resistor core tape 2 and a latch hook part 21;
the conducting ring 3 and the second mounting hole 31;
the fixing piece 4 and the first mounting hole 41;
binding post 5, support cylinder 6, support 7.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments and the accompanying drawings.
The high-load impact-resistant resistor of the embodiment, as shown in fig. 1 to 4, includes an insulating cylinder 1 and a plurality of resistor core belts 2, the insulating cylinder 1 is a long cylindrical ceramic body, the outer side of the insulating cylinder 1 is provided with a plurality of accommodating grooves 11 along the circumferential direction, the resistor core belts 2 are V-shaped metal long strips, the plurality of resistor core belts 2 are buckled inwards in different accommodating grooves 11, and the two end portions of the resistor core belts 2 axially extend out of the accommodating grooves 11 to be electrically connected with each other. Two side parts of the resistance core belt 2 are bent outwards to form locking hook parts 21, hook grooves 12 with the width similar to the thickness of the resistance core belt 2 extend from the bottom of the accommodating groove 11, and the locking hook parts 21 of the resistance core belt 2 are embedded into the hook grooves 12 corresponding to the accommodating groove 11, so that the resistance core belt 2 is hooked tightly in the radial direction.
Compared with the prior art, the metal strip belt is adopted as the resistor core belt 2, the current carrying area is larger than that of a linear resistor, the hook locking part 21 of the resistor core belt 2 is embedded into the hook bending groove 12 of the insulating cylinder 1, so that the resistor core belt 2 is stably fixed in the accommodating grooves 11 in the radial direction, different resistor core belts 2 are positioned in different accommodating grooves 11 and separated, the different resistor core belts cannot be attracted and close to each other, the insulating property is good, the deformation or the separation are not easy, and the structure is stable.
The stability of the winding resistor is ingeniously combined with the advantage of large current-carrying area of the chip resistor, so that the high-load large-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 cylinder in the conventional thinking.
In this embodiment, the opening of accommodating groove 11 outwards reduces the setting gradually to make the cell wall of accommodating groove 11 is accommodated in the interference fit ground elasticity laminating that the lateral wall that makes resistance core area 2 rely on self V-arrangement to strut, make resistance core area 2 more stable.
In this embodiment, the hook groove 12 and the lock hook portion 21 are both curved in an arc shape, 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 accommodating groove 11 from the axial direction during installation.
In the embodiment, the middle bending part of the resistor core belt 2 is lower than the outer contour circle of the insulating cylinder 1; or the contact surface is tangent to the outer contour circle of the insulating cylinder 1, so that the probability that a peripheral device collides with the resistance core belt 2 is reduced, and the protective effect is achieved.
In the present embodiment, the electrical connection between the plurality of resistive core strips 2 is implemented as follows: the two ends of the insulating column body 1 are provided with conducting rings 3, the two ends of each resistor core belt 2 are welded with fixing pieces 4, the fixing pieces 4 are provided with first mounting holes 41, nuts are welded at the positions of the first mounting holes 41, the conducting rings 3 are provided with second mounting holes 31, and bolts are arranged in the first mounting holes 41, the second mounting holes 31 and the nuts in a penetrating mode, so that the conducting rings 3 and the fixing pieces 4 are fixed in a conducting mode. The conducting ring 3 is fixed with a wiring terminal 5, and the wiring terminal 5 is provided with a wiring hole for electrically connecting different resistors or peripheral using equipment through a conducting wire.
In this embodiment, the center of the insulating column 1 is provided with a center hole, the center hole is inserted with the supporting column 6, 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 the brackets 7, so as to support the insulating column 1.
In another embodiment, as shown in fig. 5, the insulating cylinder 1 may be formed by splicing a plurality of splicing blocks in an axially detachable manner, and the number of splicing blocks may be selected according to the length of the resistive core band 2, so that the applicability is higher. As for the connection between the splicing blocks, the mode of the hook or the thread can be selected.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is 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 on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A high load impact resistant resistor characterized by: the resistor core belt is a V-shaped metal long strip belt, the openings of the resistor core belts are inwards embedded in different accommodating grooves, and two end parts of the resistor core belt axially extend out of the accommodating grooves to be electrically connected with each other; the two side parts of the resistance core belt are bent outwards to form a hook locking part, a hook groove is formed at the bottom of the accommodating groove, and the hook locking part of the resistance core belt is embedded into the hook groove corresponding to the accommodating groove, so that the resistance core belt is locked in the radial direction.
2. A high load impact resistant resistor as claimed in claim 1, wherein: the opening of the accommodating groove is gradually reduced outwards, so that the side wall of the resistor core belt is elastically attached to the groove wall of the accommodating groove.
3. A high load impact resistant resistor as claimed in claim 1, wherein: the hook groove and the hook part are both arc-shaped and bent, and the bending degree is more than 180 degrees.
4. A high load impact resistant resistor as claimed 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 claimed in claim 1, wherein: conducting rings are arranged at two ends of the insulating column body, and the plurality of resistance core belts are respectively electrically connected with the conducting rings.
6. A high load impact resistant resistor as claimed in claim 5 wherein: the two ends of each resistance core belt are welded with fixing pieces, each fixing piece is provided with a first mounting hole, a nut is welded at the position of each first mounting hole, each conducting ring is provided with a second mounting hole, and bolts penetrate through the first mounting hole, the second mounting holes and the nuts, so that the conducting rings and the fixing pieces are fixed in a conductive mode.
7. A high load impact resistant resistor as claimed in claim 5 wherein: the conducting ring is fixed with a wiring terminal, and the wiring terminal is provided with a wiring hole.
8. A high load impact resistant resistor as claimed in claim 1, wherein: the insulating cylinder is a ceramic body.
9. A high load impact resistant resistor as claimed in claim 1 or 8, wherein: the center of the insulating cylinder is provided with a center hole, the center hole is penetrated with the supporting cylinder, the two ends of the supporting cylinder penetrate out of the insulating cylinder, and the two ends of the supporting cylinder are fixed with brackets, so that the insulating cylinder is erected.
10. A high load impact resistant resistor as claimed in claim 1 or 8, wherein: the insulating cylinder is formed by splicing a plurality of splicing blocks in an axially detachable mode.
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 true CN114334320A (en) | 2022-04-12 |
| CN114334320B 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 |
|---|---|
| CN114334320B (en) | 2024-04-05 |
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