CN114334313A - High-power resistor with bone-shaped resistor belt - Google Patents
High-power resistor with bone-shaped resistor belt Download PDFInfo
- Publication number
- CN114334313A CN114334313A CN202111660117.9A CN202111660117A CN114334313A CN 114334313 A CN114334313 A CN 114334313A CN 202111660117 A CN202111660117 A CN 202111660117A CN 114334313 A CN114334313 A CN 114334313A
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- Prior art keywords
- resistor
- resistance
- bone
- band
- high power
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- 238000005452 bending Methods 0.000 claims abstract description 23
- 238000005192 partition Methods 0.000 claims description 12
- 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
- 238000010030 laminating Methods 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910052573 porcelain Inorganic materials 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process 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
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000008859 change Effects 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
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 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 band, which comprises a plurality of stacked resistor units, wherein each resistor unit comprises a resistor band 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, all 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 supporting plate; a positioning rod is arranged between the two supporting plates. During assembly, the resistance band is embedded into the dovetail groove from the end part of the support plate, and the resistance band is convenient to mount; and the width of the bend part is increased, so that the current carrying capacity can be increased, the current impact resistance is high, the resistance is suitable for being used under the working condition of high current impact, meanwhile, the area of the bend part is increased, the heat dissipation performance can be pertinently improved, and the fault that the bend part of the traditional resistor is easily overheated and burnt 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 sheet assembly for the high-power resistor has various forms, particularly, the resistor with high power, high energy and low resistance has a complex structure and a simple structure, different cracks are directly punched on a stainless steel resistor plate to form a loop, and the loop is directly used as the resistor sheet assembly. The resistance card manufactured by the method has large deformation, sharp corners formed at the tail parts of cracks, poor heavy current impact resistance, incapability of continuously introducing loads and unreliable performance. Because the resistor disc is directly punched with cracks to form a through-flow loop, the tail of each crack forms a sharp angle, and the resistor disc is directly burnt out to cause the rejection of the resistor due to the easy current collection after a large current.
The integrated resistance band which is continuously bent appears in the market, for example, patent document with publication number CN104091662A discloses a band type high-power resistor, the method of bending the stainless steel band integrally is adopted, the upper layer resistance band and the lower layer resistance band are fixed and insulated by using bayonets of porcelain pieces, screw rods which play a role of fixing penetrate through the porcelain pieces, the resistance bands and the porcelain pieces are fixed on a left bracket and a right bracket through the screw rods, and then the resistance bands are connected in series and parallel through connecting copper bars to achieve the purpose of required resistance.
However, the above-described resistor has the following disadvantages: the ceramic screw for fixing the resistance band has a complex structure and high assembly strength; the resistance band is embedded into each groove of the ceramic piece, the groove width of the ceramic piece is approximately equal to the thickness of the resistance band, and therefore certain assembly difficulty exists in embedding each section of the resistance band into the small groove; the current resistance area is equal in width everywhere, however, often current density is big in the bending part of resistance area, and the degree of generating heat is high, if combine above prior art's porcelain spare with the corner laminating of resistance area fixed, can further hinder the corner heat dissipation.
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 purpose, the invention provides the following technical scheme:
the high-power resistor with the bone-shaped resistor band comprises a plurality of stacked resistor units, wherein each resistor unit comprises a resistor band and two insulating 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, all 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 supporting plate; a positioning rod is arranged between the two supporting plates.
Specifically, the two ends of the resistance band are straight plate-shaped wiring ends, and the wiring ends are attached to the bottom wall of the dovetail groove.
Specifically, the wiring terminal is provided with a wiring hole.
Specifically, two adjacent sections of the resistance band are arranged in a V-shaped inclined manner.
Specifically, the locating lever is the screw rod, and the both ends of screw rod are equipped with nut locking Assembly to the tip of locating lever and the backup pad reciprocal anchorage that corresponds.
Specifically, the resistance unit further comprises a partition plate, the partition plate comprises a plate body and a plurality of insulating division bars, the division bars are fixed on the plate body in parallel, the plate body is fixed on the supporting plate, and the division bars are embedded into two adjacent bending parts of the resistance band, so that the bending parts of the resistance band are separated.
In particular, a plurality of resistive strips are embedded in each bend, thereby separating two adjacent segments of the resistive strips.
Specifically, the plate body of the partition plate and the plurality of division bars are of an integrated structure.
Specifically, the support plate is a mica plate.
Specifically, the resistance belt is an integrated structure formed by bending a metal straight belt after being cut into an octagon at equal intervals.
The invention has the beneficial effects that:
compared with the prior art, the high-power resistor with the bone-shaped resistance band has the advantages that the bone-shaped clamping parts with the increased widths are arranged at all the bent parts of the resistance band, so that the resistance band can be embedded into the dovetail groove from the end part of the supporting plate during assembly, and the resistance band is convenient to install; and the width of the bend part is increased, so that the current carrying capacity can be increased, the current impact resistance is high, the resistance is suitable for being used under the working condition of high current impact, meanwhile, the area of the bend part is increased, the heat dissipation performance can be pertinently improved, and the fault that the bend part of the traditional resistor is easily overheated and burnt is avoided.
Drawings
Fig. 1 is a schematic structural diagram of a high-power resistor with a bone-shaped resistor strip in an embodiment.
Fig. 2 is a schematic structural diagram of the resistance unit in the embodiment.
Fig. 3 is an exploded view of the resistance unit in the embodiment.
Fig. 4 is a schematic structural diagram of the resistance band in the embodiment.
Fig. 5 is a schematic structural diagram of the resistance band in the embodiment before bending.
Reference numerals:
a resistance unit 1;
a positioning rod 4 and a nut locking assembly 5;
Detailed Description
The present invention will be described in detail below with reference to specific embodiments and the accompanying drawings.
The high-power resistor with the bone-shaped resistor band comprises six stacked resistor units 1, each resistor unit 1 comprises a resistor band 2 and two insulating support plates 3 arranged in parallel, the support plates 3 are mica plates, a positioning rod 4 is arranged between the two support plates 3, the positioning rod 4 is a screw rod, and nut locking assemblies 5 are arranged at two end portions of the screw rod, so that the end portions of the positioning rod 4 and the corresponding support plates 3 are mutually fixed, and the relative positions of the two support plates 3 are fixed. The opposite side surfaces 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 band 2 is a continuous bending structure which is integrally formed, the bending parts on the same side of the resistance band 2 are aligned with each other, the width of each bending part of the resistance band 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 band 2 are the straight plate-shaped terminals 21, the terminals 21 are attached to the bottom wall of the dovetail groove 31, the stability of the terminals 21 is enhanced, and the positioning rod 4 penetrates through the terminals 21. The terminal 21 is provided with a wiring hole for electrically connecting the plurality of resistance units 1 through a conductive wire or connecting with a peripheral using device. Two adjacent sections of the resistance band 2 are arranged in a V-shaped inclined mode, and the bent position exerts a spreading force on each section inside the resistance band 2 to prevent the two adjacent sections from being attracted.
In this embodiment, the resistor unit 1 further includes a partition plate 6, the partition plate 6 includes a plate body 61 and a plurality of insulating division bars 62, the plurality of division bars 62 are fixed to the plate body 61 in parallel, the plate body 61 is fixed to the support plate 3, and the plurality of division bars 62 are embedded in two adjacent bends of the resistor strip 2, so as to separate the bends of the resistor strip 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 two adjacent segments of resistive strips 2.
In actual manufacturing, the manufacturing method of the resistor comprises the following steps:
cutting the resistance tape: referring to fig. 5, octagons are cut and formed at equal intervals on a metal straight strip, two adjacent octagons are lengths of each segment of the subsequent resistance strip 2, and the wiring terminal 21 is cut and formed and a wiring hole is punched;
bending the resistance band: bending and molding the punched metal strip section by section;
a positioning step: the bent parts at the two sides of the resistance band 2 are respectively embedded into the dovetail grooves 31 from the end parts of the corresponding support plates 3, and then the positioning rods 4 are locked;
a separation step: the comb-like partition plate 6 is inserted and fixed to complete the assembly of one resistance unit 1.
The resistor adopts the S-shaped bone-shaped resistor band 2, the mica supporting plate 3 with the dovetail groove 31 and the comb-shaped partition plate 6 are matched to fix the resistor band 2, the resistor has simple structure, stability and reliability, simple processing and assembling process and low cost; the resistor is made of a strip resistor and a resistor strip 2, the joint is not easy to burn like the traditional resistor disc structure, the resistance impact capability of the resistor is strong, the resistor is suitable for being used under the working condition of large current impact, and the resistance precision is easy to control; later maintenance is simple, if need follow and trade the resistance, only need loose two fixed screws with locating lever 4 just can directly take resistance area 2 out and change, and installation and dismouting are all very convenient, easily installation and maintenance.
The bent part of the resistance band 2 is in a bone shape, so that the fixing effect can be achieved, the sectional area of the bent 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, the assembly tolerance is reduced, the mounting complexity is reduced, the mounting reliability is improved, the mounting cost is saved, and meanwhile, the maintenance, disassembly and assembly cost is also simplified; meanwhile, most of the structure is changed to be fixed by mica, so that the insulation performance of the resistor is enhanced, and the resistor can be used as a high-voltage resistor product by being supported by an insulator at the bottom of the resistor in practical use.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments 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 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-power resistor with a bone-shaped resistor band is characterized in that: the resistor comprises a plurality of stacked resistor units, wherein each resistor unit comprises a resistor band and two insulating 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, all 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 supporting plate; a positioning rod is arranged between the two supporting plates.
2. A high power resistor with a bone-like resistive strip as claimed in claim 1, wherein: the both ends of resistance area are straight platelike wiring end, and wiring end laminating dovetail's diapire.
3. A high power resistor with a bone-like resistor strip according to claim 2, characterized in that: the wiring terminal is provided with a wiring hole.
4. A high power resistor with a bone-like resistive strip as claimed in claim 1, wherein: two adjacent sections of the resistance band are arranged in a V-shaped inclined manner.
5. A high power resistor with a bone-like resistive strip as claimed in claim 1, wherein: the locating lever is the screw rod, and the both ends of screw rod are equipped with nut locking Assembly to fix the tip of locating lever and corresponding backup pad each other.
6. A high power resistor with a bone-like resistive strip as claimed in claim 1, wherein: the resistance unit further comprises a partition plate, the partition plate comprises a plate body and a plurality of insulating division bars, the division bars are fixed on the plate body in parallel, the plate body is fixed on the supporting plate, and the division bars are embedded into two adjacent bending parts of the resistance band, so that the bending parts of the resistance band are separated.
7. A high power resistor with a bone-like resistor strip as claimed in claim 6, wherein: a plurality of resistive strips are embedded in each bend, thereby separating two adjacent segments of the resistive strip.
8. A high power resistor with a bone-like resistor strip as claimed in claim 6, wherein: the plate body of the partition plate and the plurality of partition strips are of an integrated structure.
9. A high power resistor with a bone-like resistive strip as claimed in claim 1, wherein: the support plate is a mica plate.
10. A high power resistor with a bone-like resistive strip as claimed in claim 1, wherein: the resistance belt is an integrated structure formed by bending a metal straight belt after being cut into an octagon 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 true CN114334313A (en) | 2022-04-12 |
| CN114334313B 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114334313B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115274233A (en) * | 2022-08-24 | 2022-11-01 | 广东福德电子有限公司 | Shock-resistant belt 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115274233A (en) * | 2022-08-24 | 2022-11-01 | 广东福德电子有限公司 | Shock-resistant belt resistor |
| CN115274233B (en) * | 2022-08-24 | 2024-05-24 | 广东福德电子有限公司 | Impact-resistant ribbon resistor |
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| Publication number | Publication date |
|---|---|
| CN114334313B (en) | 2024-04-05 |
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