CN114334314A - Sandwich type resistor - Google Patents
Sandwich type resistor Download PDFInfo
- Publication number
- CN114334314A CN114334314A CN202111480490.6A CN202111480490A CN114334314A CN 114334314 A CN114334314 A CN 114334314A CN 202111480490 A CN202111480490 A CN 202111480490A CN 114334314 A CN114334314 A CN 114334314A
- Authority
- CN
- China
- Prior art keywords
- resistor
- sandwich
- insulating
- discs
- sheet
- 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.)
- Pending
Links
- 230000007704 transition Effects 0.000 claims abstract description 13
- 238000009413 insulation Methods 0.000 claims abstract description 7
- 238000005452 bending Methods 0.000 claims description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 11
- 238000000926 separation method Methods 0.000 claims description 10
- 239000010445 mica Substances 0.000 claims description 9
- 229910052618 mica group Inorganic materials 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 230000003373 anti-fouling effect Effects 0.000 abstract description 5
- 239000000428 dust Substances 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/01—Mounting; Supporting
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/02—Housing; Enclosing; Embedding; Filling the housing or enclosure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/08—Cooling, heating or ventilating arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Details Of Resistors (AREA)
Abstract
The invention relates to the technical field of resistors, in particular to a sandwich type resistor, which comprises a support module and a resistor unit, wherein the resistor unit comprises a plurality of resistor discs and a plurality of insulating separating discs which are sequentially arranged at intervals in a laminated manner, transition holes are formed in positions, close to the end parts, of the insulating separating discs, bent sections are integrally formed at the end parts of the resistor discs, and the bent sections penetrate through the transition holes to be connected with another resistor disc, so that the resistor discs are electrically connected; two side surfaces of each resistance chip are tightly covered by different insulation separating sheets, so that impurities such as dust and the like basically cannot fall on the surface of the resistance chip, and the dustproof and antifouling level is high; the resistor disc has no deformation space in the arrangement direction, so the resistor disc can not deform after being electrified, and different resistor discs can not move close to each other, thereby having stable structure and good insulating property.
Description
Technical Field
The invention relates to the technical field of resistors, in particular to a sandwich type resistor.
Background
The resistor generally comprises a plurality of parallel resistor discs, under the action of large current, two adjacent resistor discs are easy to attract, and in order to prevent the attraction between the resistor discs, the prior art is that a coaxial hole is formed in each resistor disc, a mica string rod and a mica ring are added in the middle to separate the adjacent resistor discs, namely, after the mica string rod passes through one resistor disc, the mica string rod passes through one mica ring and then passes through the next resistor disc, so that the adjacent resistor discs are separated by the mica ring.
However, the resistance cards of the existing chip resistors are exposed, and the dustproof and antifouling grade is low. Because of the insulation requirement, there must be the clearance between the current adjacent resistance card, then the resistance card inevitably has displacement space in the array direction, and the resistance card generates heat and warp when heavy current passes through, and mutual actuation is even different degree, influences stability and insulating properties.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides the sandwich type resistor which is high in dustproof and antifouling grade, good in insulativity and high in stability.
In order to achieve the purpose, the invention provides the following technical scheme:
the sandwich type resistor comprises a supporting module and a resistor unit, wherein the resistor unit comprises a plurality of resistor discs and a plurality of insulating separating discs which are sequentially arranged at intervals in a laminated mode, transition holes are formed in the positions, close to the end portions, of the insulating separating discs, bending sections are integrally formed at the end portions of the resistor discs, the bending sections penetrate through the transition holes to be connected with another resistor disc, and therefore the resistor discs are electrically connected; two side surfaces of each resistance sheet are closely covered by different insulating separating sheets.
Specifically, the bending diameter of the bending section is equal to the thickness of the insulating separating sheet.
Specifically, the bending section is provided with a U-shaped copper bar, and the side face of the copper bar is attached to the side wall of the bending section.
Specifically, the bending section of the resistance card supports against the side wall of the corresponding transition hole, and the copper strip is attached to the inner side of the bending section.
Specifically, the resistor sheets on the topmost layer and the bottommost layer partially extend outwards to the outside of the resistor unit to serve as leading-out ends, and corresponding insulating separation sheets are provided with abdicating notches.
Specifically, the supporting module comprises a base, a supporting plate, a pressing plate and a locking assembly, the supporting plate is fixed on the base, the resistance units are stacked on the supporting plate, the pressing plate is fixed on the base through the locking assembly, so that the pressing plate presses the resistance units downwards, and the insulating separating sheets are arranged between the pressing plate and the resistance units and between the supporting plate and the resistance units.
Specifically, a plurality of grooves are formed in the peripheral sides of the insulating separating sheets, the locking assembly comprises a screw rod and a nut, the screw rod penetrates through the pressing plate and is embedded into the grooves of the insulating separating sheets, and then penetrates through the supporting plate and the base and is locked by the nut, so that the resistance unit is longitudinally and transversely limited.
Specifically, the outer side of the screw rod is sleeved with a limiting sleeve, and the limiting sleeve is in interference fit with a groove of the insulating partition sheet.
Specifically, the thickness of the insulating separation sheet is 3-5 times of that of the resistor sheet.
Specifically, the insulating separating sheet is a mica sheet.
The invention has the beneficial effects that:
compared with the prior art, the sandwich type resistor has the advantages that the transition holes are formed in the insulating separating sheets to allow the end parts of the resistor sheets to penetrate through, and the two side surfaces of the resistor sheets are tightly covered by the different insulating separating sheets, so that impurities such as dust and the like basically cannot fall onto the surfaces of the resistor sheets, and the dustproof and antifouling grade is high; the resistor disc has no deformation space in the arrangement direction, so the resistor disc can not deform after being electrified, and different resistor discs can not move close to each other, thereby having stable structure and good insulating property.
Drawings
Fig. 1 is a schematic structural view of a sandwich type resistor in an embodiment.
Fig. 2 is a sectional view of a sandwich resistor in an embodiment.
Fig. 3 is an enlarged view at a in fig. 2.
Fig. 4 is a schematic diagram of the sandwich type resistor in an embodiment, in which a part of the insulating separator is hidden.
Fig. 5 is a cross-sectional view of another cross-section of the sandwich resistor in an embodiment.
Fig. 6 is a schematic structural diagram of a resistor sheet of the sandwich type resistor in the embodiment.
Fig. 7 is a schematic structural view of an insulating separator of the sandwich type resistor in the embodiment.
Reference numerals:
the support module 1, the base 11, the support plate 12, the pressure plate 13, the locking component 14, the screw rod 141, the nut 142 and the limit sleeve 143;
resistance unit 2, resistance card 21, bending section 211, leading-out terminal 212, insulating separation piece 22, transition hole 221, recess 222, copper strip 23.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments and the accompanying drawings.
The sandwich-type resistor of the present embodiment, as shown in fig. 1 to 7, includes a support module 1 and a resistor unit 2, where the resistor unit 2 includes a plurality of resistor discs 21 and a plurality of insulating spacers 22 arranged in a stacked manner at intervals in sequence, a transition hole 221 is formed at a position close to an end of the insulating spacer 22, a bent section 211 is integrally formed at the end of the resistor disc 21, and the bent section 211 passes through the transition hole 221 and is connected to another resistor disc 21, so that the plurality of resistor discs 21 are electrically connected; two side surfaces of each resistance card 21 are closely covered by different insulation separation sheets 22, and impurities such as dust and the like basically cannot fall on the surface of the resistance card 21, so that the dustproof and antifouling level is high; the resistive sheets 21 have no deformation space in the arrangement direction, so that the resistive sheets 21 are not deformed completely after being electrified, and different resistive sheets 21 are not moved close to each other, so that the structure is stable and the insulating property is good.
In this embodiment, the bending diameter of the bending section 211 is equal to the thickness of the insulation separating sheet 22, so that the bending section 211 is smoothly transited to avoid being pressed and broken. The bending section 211 is provided with a U-shaped copper bar 23, and the side surface of the copper bar 23 is attached to the side wall of the bending section 211. And the copper bar 23 is used for limiting, so that the fracture in the clamping process is prevented, and the through-current capacity is improved. The bent portion 211 of the resistive sheet 21 abuts against the side wall of the corresponding transition hole 221, so that the resistive sheet 21 is further prevented from moving transversely, positioning and guiding installation are facilitated, and the copper strip 23 is attached to the inner side of the bent portion 211.
In this embodiment, the top-most and bottom-most resistor sheets 21 partially extend outward beyond the resistor unit 2 as the terminals 212 for connecting with other resistors or devices, and the corresponding insulating separating sheet 22 is provided with an abdicating notch for the terminals 212 to pass through.
In this embodiment, the support module 1 includes a base 11, a support plate 12, a pressing plate 13, and a locking assembly 14, where the support plate 12 is fixed to the base 11, the resistor unit 2 is stacked on the support plate 12, and the locking assembly 14 fixes the pressing plate 13 to the base 11, so that the pressing plate 13 presses the resistor unit 2 downward, and the insulating spacers 22 are respectively located between the pressing plate 13 and the resistor unit 2 and between the support plate 12 and the resistor unit 2. The pressing plate 13 is a stainless steel plate. The circumference of the insulation separating sheet 22 is provided with a plurality of grooves 222, the locking assembly 14 comprises a screw rod 141 and a nut 142, the screw rod 141 penetrates through the pressing plate 13 and is embedded into the grooves 222 of the insulation separating sheets 22, and then penetrates through the supporting plate 12 and the base 11 and is locked with the nut 142, so that the resistance unit 2 is longitudinally and transversely limited. The outside of the screw 141 is sleeved with a limiting sleeve 143, the limiting sleeve 143 is in interference fit with the groove 222 of the insulating partition plate 22, and the limiting sleeve 143 is a ceramic cylinder or a flexible silica gel cylinder.
In practice, the thickness of the insulating separation sheet 22 is 3-5 times that of the resistor sheet 21, the resistor sheet 21 is arranged ingeniously, and the insulating separation sheet 22 absorbs and transfers heat to dissipate heat conveniently. The insulating separator sheet 22 is preferably a sheet of mica, which itself can absorb heat and provide energy.
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 sandwich resistor, characterized by: the resistor unit comprises a plurality of resistor discs and a plurality of insulating separation discs which are sequentially arranged at intervals in a stacked mode, transition holes are formed in the positions, close to the end portions, of the insulating separation discs, bent sections are integrally formed at the end portions of the resistor discs and penetrate through the transition holes to be connected with another resistor disc, and therefore the resistor discs are electrically connected; two side surfaces of each resistance sheet are closely covered by different insulating separating sheets.
2. A sandwich resistor according to claim 1 wherein: the bending diameter of the bending section is equal to the thickness of the insulating separating sheet.
3. A sandwich resistor according to claim 1 wherein: the bending section is provided with a U-shaped copper bar, and the side surface of the copper bar is attached to the side wall of the bending section.
4. A sandwich resistor according to claim 3 wherein: the bending section of the resistance card props against the side wall of the corresponding transition hole, and the copper strip is attached to the inner side of the bending section.
5. A sandwich resistor according to claim 1 wherein: the resistance sheets on the topmost layer and the bottommost layer partially extend outwards to form the resistance units as leading-out ends, and corresponding insulation separation sheets are provided with abdicating notches.
6. A sandwich resistor according to claim 1 wherein: the supporting module comprises a base, a supporting plate, a pressing plate and a locking assembly, the supporting plate is fixed on the base, the resistor units are stacked on the supporting plate, the pressing plate is fixed on the base through the locking assembly, so that the pressing plate presses the resistor units downwards, and the insulating separating sheets are arranged between the pressing plate and the resistor units and between the supporting plate and the resistor units.
7. A sandwich-type resistor according to claim 6 wherein: the periphery of the insulating partition sheet is provided with a plurality of grooves, the locking assembly comprises a screw rod and a nut, the screw rod penetrates through the pressing plate and is embedded into the grooves of the insulating partition sheets, and then penetrates through the supporting plate and the base and is locked by the nut, so that the resistance unit is longitudinally and transversely limited.
8. A sandwich resistor according to claim 7 wherein: the outside cover of screw rod has the stop collar, and the recess interference fit of stop collar and insulating spacer.
9. A sandwich resistor according to claim 1 wherein: the thickness of the insulating separation sheet is 3-5 times of that of the resistor sheet.
10. A sandwich resistor according to claim 1 wherein: the insulating separating sheet is a mica sheet.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111480490.6A CN114334314A (en) | 2021-12-06 | 2021-12-06 | Sandwich type resistor |
| PCT/CN2021/137157 WO2023102910A1 (en) | 2021-12-06 | 2021-12-10 | Sandwich-type resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111480490.6A CN114334314A (en) | 2021-12-06 | 2021-12-06 | Sandwich type resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114334314A true CN114334314A (en) | 2022-04-12 |
Family
ID=81048566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111480490.6A Pending CN114334314A (en) | 2021-12-06 | 2021-12-06 | Sandwich type resistor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114334314A (en) |
| WO (1) | WO2023102910A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105702400A (en) * | 2016-03-31 | 2016-06-22 | 湖南福德电气有限公司 | Direct current component resistor applicable to large current limiting |
| CN206274478U (en) * | 2016-11-24 | 2017-06-23 | 广东福德电子有限公司 | A kind of secondary insulating resistor |
| CN107393668A (en) * | 2017-07-27 | 2017-11-24 | 广东福德电子有限公司 | A kind of stable wind power resistor that insulate |
| CN110767397A (en) * | 2019-11-26 | 2020-02-07 | 湖南福德电气有限公司 | Stable band resistor |
| CN111755184A (en) * | 2020-06-22 | 2020-10-09 | 上海鹰峰电子科技股份有限公司 | Aluminum-shell-packaged energy resistor |
| CN112086252A (en) * | 2020-09-14 | 2020-12-15 | 广东意杰科技有限公司 | High-voltage ultra-large-capacity water-cooled resistor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3640448B2 (en) * | 1995-10-27 | 2005-04-20 | 愛知電機株式会社 | Neutral point grounding resistance device |
| CN100346425C (en) * | 2004-09-24 | 2007-10-31 | 西安交通大学 | Wave regulating resistor for regulating inpulse current wave form |
| CN201829280U (en) * | 2010-10-26 | 2011-05-11 | 上海鹰峰电子科技有限公司 | Wind power low-voltage ride-through protective resistor |
| CN210073497U (en) * | 2019-06-15 | 2020-02-14 | 山东航天正和电子有限公司 | Resistor double-resistor sheet type junction |
| CN211125210U (en) * | 2019-11-26 | 2020-07-28 | 湖南福德电气有限公司 | Reinforced resistor |
-
2021
- 2021-12-06 CN CN202111480490.6A patent/CN114334314A/en active Pending
- 2021-12-10 WO PCT/CN2021/137157 patent/WO2023102910A1/en unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105702400A (en) * | 2016-03-31 | 2016-06-22 | 湖南福德电气有限公司 | Direct current component resistor applicable to large current limiting |
| CN206274478U (en) * | 2016-11-24 | 2017-06-23 | 广东福德电子有限公司 | A kind of secondary insulating resistor |
| CN107393668A (en) * | 2017-07-27 | 2017-11-24 | 广东福德电子有限公司 | A kind of stable wind power resistor that insulate |
| CN110767397A (en) * | 2019-11-26 | 2020-02-07 | 湖南福德电气有限公司 | Stable band resistor |
| CN111755184A (en) * | 2020-06-22 | 2020-10-09 | 上海鹰峰电子科技股份有限公司 | Aluminum-shell-packaged energy resistor |
| CN112086252A (en) * | 2020-09-14 | 2020-12-15 | 广东意杰科技有限公司 | High-voltage ultra-large-capacity water-cooled resistor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023102910A1 (en) | 2023-06-15 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |