CN114334313B - High-power resistor with bone-shaped resistor strip - Google Patents
High-power resistor with bone-shaped resistor strip Download PDFInfo
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- CN114334313B CN114334313B CN202111660117.9A CN202111660117A CN114334313B CN 114334313 B CN114334313 B CN 114334313B CN 202111660117 A CN202111660117 A CN 202111660117A CN 114334313 B CN114334313 B CN 114334313B
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- resistor
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- bending
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- 238000005452 bending Methods 0.000 claims abstract description 35
- 238000000926 separation method Methods 0.000 claims description 11
- 238000005192 partition Methods 0.000 claims description 10
- 239000010445 mica Substances 0.000 claims description 5
- 229910052618 mica group Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 2
- 229910052573 porcelain Inorganic materials 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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Abstract
The invention relates to the technical field of resistors, in particular to a high-power resistor with a bone-shaped resistor strip, which comprises a plurality of stacked resistor units, wherein each resistor unit comprises a resistor strip and two insulated support plates which are arranged in parallel, and dovetail grooves are formed in opposite side surfaces of the two support plates; the resistance belt is of an integrally formed continuous bending structure, the bending parts on the same side of the resistance belt are aligned with each other, the width of each bending part of the resistance belt is gradually increased to form a bone-shaped clamping part, and the clamping part is embedded into the dovetail groove from the end part of the support plate; a positioning rod is arranged between the two support plates. When the resistor belt is assembled, the resistor belt is embedded into the dovetail groove from the end part of the supporting plate, and the resistor belt is convenient to install; the width of the bending part is increased, the current carrying capacity can be increased, the current impact resistance is high, the resistor is suitable for being used under the working condition of heavy current impact, meanwhile, the heat dissipation performance can be pertinently improved through the increased area of the bending part, and the defect that the traditional resistor is easy to overheat and burn is avoided.
Description
Technical Field
The invention relates to the technical field of resistors, in particular to a high-power resistor with a bone-shaped resistor band.
Background
At present, the resistor disc component for the high-power resistor has various forms, particularly the resistor with high power, high energy and low resistance value has a complicated structure, is too simple, and is directly formed by punching different cracks on a stainless steel resistor plate to form a loop, so that the resistor disc component is directly used as the resistor disc component. The resistor disc is large in deformation, sharp angles are formed at the tail parts of the cracks, high-current impact resistance is poor, load cannot be continuously introduced, and performance is unreliable. Because the crack is directly punched on the resistor disc, a through-flow loop is formed, the tail part of the crack forms a sharp angle, the current is easy to gather after high current passes through, and the resistor disc is directly burnt out, so that the resistor is scrapped.
From this market has appeared the integration resistance area of continuous bending, as the patent document of publication No. CN104091662A discloses a belt type high-power resistor, adopts the whole method of bending of stainless steel band, utilizes porcelain piece self bayonet fixed insulation between upper and lower floor's resistance area, and the inside screw rod that has the effect of fixing of porcelain piece runs through, is fixed in resistance area and porcelain piece on left and right support through the screw rod, then reaches the purpose of required resistance through connecting copper bar cluster, parallel connection's mode between the resistance area.
However, the above resistor has the following drawbacks: the ceramic screw rod for fixing the resistance belt has complex structure and higher assembly strength; the resistor strips are embedded into each groove of the porcelain piece, and the groove width of the porcelain piece is approximately equal to the thickness of the resistor strips, so that certain assembly difficulty exists in embedding each section of the resistor strips into the small grooves; the conventional resistor strip has the same width everywhere, however, the bending part of the resistor strip is often large in current density and high in heating degree, and if the bending part of the resistor strip is bonded and fixed by combining the porcelain pieces in the prior art, heat dissipation at the bending part can be further hindered.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides the high-power resistor with the bone-shaped resistor band, which is convenient to assemble and good in heat dissipation effect.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the high-power resistor with the bone-shaped resistance bands comprises a plurality of stacked resistance units, wherein each resistance unit comprises a resistance band and two insulated support plates which are arranged in parallel, dovetail grooves are formed in opposite side surfaces of the two support plates, and the dovetail grooves are arranged along the length direction of the support plates; the resistance belt is of an integrally formed continuous bending structure, the bending parts on the same side of the resistance belt are aligned with each other, the width of each bending part of the resistance belt is gradually increased to form a bone-shaped clamping part, and the clamping part is embedded into the dovetail groove from the end part of the support plate; a positioning rod is arranged between the two support plates.
Specifically, the two ends of the resistance belt are straight-plate-shaped wiring terminals, and the wiring terminals are attached to the bottom wall of the dovetail groove.
Specifically, the wiring terminal is provided with a wiring hole.
Specifically, adjacent two sections of the resistance belt are obliquely arranged in a V shape.
Specifically, the locating rod is a screw rod, and nut locking assemblies are arranged at two end parts of the screw rod, so that the end parts of the locating rod and the corresponding supporting plates are mutually fixed.
Specifically, the resistance unit further comprises a separation plate, the separation plate comprises a plate body and a plurality of insulating separation strips, the separation strips are fixed on the plate body in parallel, the plate body is fixed on a supporting plate, and the separation strips are embedded into adjacent two bending parts of the resistance belt, so that the bending parts of the resistance belt are separated.
In particular, a plurality of resistive strips are embedded in each bend, separating adjacent two segments of the resistive strips.
Specifically, the plate body and the plurality of division bars of the division plate are of an integrated structure.
Specifically, the support plate is a mica plate.
Specifically, the resistance belt is an integrated structure formed by bending and shaping metal straight belts after being cut into octagons at equal intervals.
The invention has the beneficial effects that:
compared with the prior art, the high-power resistor with the bone-shaped resistance belt has the advantages that the bending parts of the resistance belt are the bone-shaped clamping parts with the increased width, so that the resistance belt is embedded into the dovetail groove from the end part of the supporting plate during assembly, and the resistance belt is convenient to install; the width of the bending part is increased, the current carrying capacity can be increased, the current impact resistance is high, the resistor is suitable for being used under the working condition of heavy current impact, meanwhile, the heat dissipation performance can be pertinently improved through the increased area of the bending part, and the defect that the traditional resistor is easy to overheat and burn is avoided.
Drawings
FIG. 1 is a schematic diagram of a high power resistor with a bone-shaped resistance band in an embodiment.
Fig. 2 is a schematic structural diagram of a resistor unit in an embodiment.
Fig. 3 is an exploded view of a resistor unit in an embodiment.
Fig. 4 is a schematic structural diagram of a resistive band in an embodiment.
Fig. 5 is a schematic structural diagram of the resistor tape before bending in the embodiment.
Reference numerals:
a resistor unit 1;
a resistance belt 2 and a terminal 21;
a support plate 3 and a dovetail groove 31;
a positioning rod 4 and a nut locking assembly 5;
a partition plate 6, a plate body 61 and a partition bar 62.
Detailed Description
The present invention will be described in detail with reference to specific embodiments and drawings.
The high-power resistor with the bone-shaped resistance belt of the embodiment comprises six stacked resistance units 1 as shown in fig. 1 to 4, each resistance unit 1 comprises a resistance belt 2 and two insulating support plates 3 which are arranged in parallel, each support plate 3 is a mica plate, a positioning rod 4 is arranged between the two support plates 3, each positioning rod 4 is a screw, nut locking assemblies 5 are arranged at two ends of each screw, and therefore the end parts of the positioning rods 4 and the corresponding support plates 3 are mutually fixed, and the relative positions of the two support plates 3 are fixed. The opposite sides of the two support plates 3 are provided with dovetail grooves 31, and the dovetail grooves 31 are arranged along the length direction of the support plate 3. The resistance belt 2 is of an integrally formed continuous bending structure, the bending positions on the same side of the resistance belt 2 are aligned with each other, the width of each bending position of the resistance belt 2 is gradually increased to form a bone-shaped clamping part, and the clamping part is embedded into the dovetail groove 31 from the end part of the support plate 3.
In this embodiment, the two ends of the resistance belt 2 are straight-plate-shaped terminals 21, the terminals 21 are attached to the bottom wall of the dovetail groove 31, stability of the terminals 21 is enhanced, and the positioning rod 4 passes through the terminals 21. The terminals 21 are provided with wiring holes for electrically connecting the plurality of resistor units 1 through conductive wires or with peripheral use equipment. Adjacent two sections of the resistance belt 2 are obliquely arranged in a V shape, and the bending part applies a stretching force to each section in the resistance belt 2 to block the attraction of the adjacent two sections.
In this embodiment, the resistor unit 1 further includes a partition plate 6, where the partition plate 6 includes a plate body 61 of an integrated structure and a plurality of insulating partition bars 62, the plurality of partition bars 62 are fixed on the plate body 61 in parallel, the plate body 61 is fixed on the support plate 3, and the plurality of partition bars 62 are embedded in adjacent two bends of the resistor belt 2, so as to separate the respective bends of the resistor belt 2. In practice, the number of spacers 62 may be increased so that a plurality of resistive strips 2 are embedded in each bend, thereby separating adjacent two segments of resistive strip 2.
In actual manufacture, the manufacturing method of the resistor comprises the following steps:
and (3) a step of cutting the resistance band: as shown in fig. 5, the metal straight strip is cut into octagons at equal intervals, two adjacent octagons are the lengths of each section of the subsequent resistance strip 2, the molded terminal 21 is cut, and a wiring hole is punched;
bending the resistance band: bending and forming the punched metal belt section by section;
positioning: the bending parts on the two sides of the resistor belt 2 are respectively embedded into the dovetail grooves 31 from the end parts of the corresponding supporting plates 3, and then the positioning rods 4 are locked;
a separation step: a comb-shaped partition plate 6 is inserted and fixed to complete the assembly of one resistor unit 1.
The resistor adopts the S-shaped bone-shaped resistance belt 2, is matched with the mica support plate 3 with the dovetail groove 31 and the comb-shaped partition plate 6 to fix the resistance belt 2, and has simple, stable and reliable structure, simple processing and assembling process and low cost; the resistor adopts a strip resistor, is made of one resistor strip 2, is not easy to burn off at the joint connection part like the traditional resistor sheet structure, has strong current impact resistance, is suitable for being used under the working condition of heavy current impact, and has easy control of resistor precision; the post maintenance is simple, if the resistor is required to be replaced, the resistor belt 2 can be directly pulled out for replacement by loosening two fixing screws of the positioning rod 4, and the resistor belt is convenient to install, assemble and disassemble and easy to install and maintain.
The bending part of the resistance belt 2 is bone-shaped, so that the fixing effect is achieved, the sectional area of the bending part is increased, the current-carrying capacity is increased, and the heating is reduced; in addition, the structure is fixed by utilizing the dovetail groove 31 structure, so that the use of fasteners is reduced, assembly tolerance is reduced, installation complexity is reduced, installation reliability is improved, installation cost is saved, and maintenance and disassembly costs are also simplified; meanwhile, most of the modified structure is fixed by mica, so that the insulation performance of the resistor is enhanced, and the resistor is supported by an insulator at the bottom of the resistor in actual use, so that the resistor can be used as a high-voltage resistor product.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
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 (9)
1. A high power resistor with a bone-shaped resistive tape, characterized by: the resistor comprises a plurality of resistor units which are stacked, wherein each resistor unit comprises a resistor belt and two insulated supporting plates which are arranged in parallel, dovetail grooves are formed in opposite side surfaces of the two supporting plates, and the dovetail grooves are arranged along the length direction of the supporting plates; the resistance belt is of an integrally formed continuous bending structure, the bending parts on the same side of the resistance belt are aligned with each other, the width of each bending part of the resistance belt is gradually increased to form a bone-shaped clamping part, and the clamping part is embedded into the dovetail groove from the end part of the support plate; a positioning rod is arranged between the two support plates.
2. A high power resistor with bone-like resistive tape according to claim 1, characterized in that: the two ends of the resistance belt are straight-plate-shaped wiring terminals, and the wiring terminals are attached to the bottom wall of the dovetail groove.
3. A high power resistor with bone-like resistive tape according to claim 2, characterized in that: the wiring terminal is provided with a wiring hole.
4. A high power resistor with bone-like resistive tape according to claim 1, characterized in that: adjacent two sections of the resistance belt are arranged in a V-shaped inclination.
5. A high power resistor with bone-like resistive tape according to claim 1, characterized in that: the locating rod is a screw rod, and nut locking components are arranged at two end parts of the screw rod, so that the end parts of the locating rod and the corresponding supporting plates are mutually fixed.
6. A high power resistor with bone-like resistive tape according to claim 1, characterized in that: the resistor unit further comprises a separation plate, the separation plate comprises a plate body and a plurality of insulating separation bars, the separation bars are fixed on the plate body in parallel, the plate body is fixed on the support plate, and the separation bars are embedded into adjacent two bending parts of the resistor belt, so that the bending parts of the resistor belt are separated.
7. A high power resistor with bone-like resistive tape as defined in claim 6, wherein: the plate body of the partition plate and the plurality of parting strips are of an integrated structure.
8. A high power resistor with bone-like resistive tape according to claim 1, characterized in that: the support plate is a mica plate.
9. A high power resistor with bone-like resistive tape according to claim 1, characterized in that: the resistance belt is an integrated structure formed by bending after the metal straight belt is cut into octagons at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111660117.9A CN114334313B (en) | 2021-12-30 | 2021-12-30 | High-power resistor with bone-shaped resistor strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111660117.9A CN114334313B (en) | 2021-12-30 | 2021-12-30 | High-power resistor with bone-shaped resistor strip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114334313A CN114334313A (en) | 2022-04-12 |
| CN114334313B true CN114334313B (en) | 2024-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111660117.9A Active CN114334313B (en) | 2021-12-30 | 2021-12-30 | High-power resistor with bone-shaped resistor strip |
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| Country | Link |
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| CN (1) | CN114334313B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115274233B (en) * | 2022-08-24 | 2024-05-24 | 广东福德电子有限公司 | Impact-resistant ribbon resistor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB173292A (en) * | 1920-09-22 | 1921-12-22 | Crompton & Co Ltd | Improvements in electric resistances |
| GB367004A (en) * | 1930-02-19 | 1932-02-05 | Edwin Niblock Lightfoot | Improvements in electrical resistance devices |
| CN1053964A (en) * | 1990-02-08 | 1991-08-21 | 通用电气公司 | The tabular hardware that is used for the resistance grid chip module |
| CN1981350A (en) * | 2004-07-09 | 2007-06-13 | 艾劳埃斯·乌本 | High performance load resistor |
| CN203232767U (en) * | 2012-10-15 | 2013-10-09 | 北京七一八友晟电子有限公司 | W-U type metal resistance tape |
| CN109698050A (en) * | 2017-10-23 | 2019-04-30 | 西安铁路信号有限责任公司 | A kind of compact jack fixing braking resistance and method |
| CN109801766A (en) * | 2017-11-16 | 2019-05-24 | 核工业西南物理研究院 | A kind of stainless steel stepwise adjustable resistance and modulated brake resistance |
-
2021
- 2021-12-30 CN CN202111660117.9A patent/CN114334313B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB173292A (en) * | 1920-09-22 | 1921-12-22 | Crompton & Co Ltd | Improvements in electric resistances |
| GB367004A (en) * | 1930-02-19 | 1932-02-05 | Edwin Niblock Lightfoot | Improvements in electrical resistance devices |
| CN1053964A (en) * | 1990-02-08 | 1991-08-21 | 通用电气公司 | The tabular hardware that is used for the resistance grid chip module |
| CN1981350A (en) * | 2004-07-09 | 2007-06-13 | 艾劳埃斯·乌本 | High performance load resistor |
| CN203232767U (en) * | 2012-10-15 | 2013-10-09 | 北京七一八友晟电子有限公司 | W-U type metal resistance tape |
| CN109698050A (en) * | 2017-10-23 | 2019-04-30 | 西安铁路信号有限责任公司 | A kind of compact jack fixing braking resistance and method |
| CN109801766A (en) * | 2017-11-16 | 2019-05-24 | 核工业西南物理研究院 | A kind of stainless steel stepwise adjustable resistance and modulated brake resistance |
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| CN114334313A (en) | 2022-04-12 |
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