CN108735404A - A kind of cement resistor - Google Patents
A kind of cement resistor Download PDFInfo
- Publication number
- CN108735404A CN108735404A CN201810520349.6A CN201810520349A CN108735404A CN 108735404 A CN108735404 A CN 108735404A CN 201810520349 A CN201810520349 A CN 201810520349A CN 108735404 A CN108735404 A CN 108735404A
- Authority
- CN
- China
- Prior art keywords
- resistor
- wire
- cement
- change material
- phase
- 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
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
- H01C10/30—Adjustable resistors the contact sliding along resistive element
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Details Of Resistors (AREA)
Abstract
The invention discloses a kind of cement resistors, wire resistor, one end including ceramic shell, in ceramic shell are welded on lead terminal, cement filled layer, the phase-change material layers that resistance wire one end extends to outside ceramic shell, resistance wire is wrapped on insulating ceramics plug, one layer of wire resistor coated with uniform has certain thickness dodecane/aerosil composite phase-change material layer, and cement is filled between wire resistor and ceramic shell.The assembling of this cement resistor is simple, is readily produced, is at low cost, and low-temperature phase-change material layer is arranged on wire resistor can quickly absorb internal heat production, effectively reduce resistance temperature, improve device security energy and resistor life.
Description
Technical field
The present invention relates to the good cement resistors in resistive technologies field more particularly to a kind of thermal diffusivity.
Background technology
Cement resistor is exactly the resistor for using the embeddings such as fire clay, cement, i.e., resistive conductor is wound in heat-resisting porcelain piece,
Outside is fixed plus heat-resisting, moisture-proof and resistant material protection, and wire-wound resistor body is put into porcelain frame and is prepared.Cement resistor
Device is one kind of wirewound resistor, it belongs to the larger resistance of power, can allow for passing through for larger current, is had shatter-proof, resistance to
The characteristics such as wet, heat-resisting, low price, are widely used in the equipment such as power supply adaptor, audio frequency dividers, automobile.Traditional cement
For resistor due to sealing requirements, heat dissipation performance is poor, resistance temperature can be caused quickly to increase when there is high current, made for a long time
With resistive element being caused to overheat, it is easy to burn out resistance, lead to equipment malfunction.
Few to cement resistor heat dissipation research at present, common radiating mode is that setting metal shell radiates, as in
State patent CN205564427U uses aluminum alloy casing, and heat dissipation is preferable, and filling insulation, Heat Conduction Material, extend inside the housing
Resistance service life.Currently used heat-conducting insulation material such as resin, silica gel etc. passes through thermal contact conductance, quick conductive, heat dissipation
It is indifferent, while metal shell causes to be not easy to store for a long time due to corroding.There are some patent applications to be related to metal at present
Shell or internal resistance structure optimization improve heat dissipation effect, such as are radiated using air circulation by the way that heat emission hole means are arranged,
Chinese patent CN206022006U discloses a kind of adjustable cement resistor of sealing, by the way that resistance wire fixed part is made cylinder
Shape, setting heat emission hole radiates on resistance wire fixed part.CN204424021U discloses a kind of horizontal type cement resistance,
Stretching out setting frame high shoulder on end face in ceramic shell electronic pins makes cement resistor retainer height, heat dissipation.In view of air is led
Hot difference, using air heat dissipation can not fast cooling, influence the cement resistor service life.
Invention content
The present invention overcomes the deficiencies in the prior art, a kind of cement resistor that thermal diffusivity is good is provided, including ceramic shell 1,
Wire resistor 2, lead terminal 3, insulating ceramics plug 4, cement filled layer 5, phase-change material layers 6, the wire resistor 2 is using electricity
Resistance silk 7 is wrapped on insulating ceramics plug 4, and lead terminal 3 is respectively welded at 7 both ends of resistance wire, and wire resistor 2 is located at ceramics
In shell 1,3 one end of lead terminal is located in ceramic shell 1, and the other end extends to outside ceramic shell 1, wire resistor 2 and ceramics
Cement filled layer 5 is filled between shell 1, one layer of certain thickness phase-change material layers 6 of wire resistor coated with uniform are described
Phase-change material is dodecane/aerosil composite phase-change material
Phase-change material in the present invention is dodecane/silicon dioxide silica aerogel composite material, wherein dodecane and titanium dioxide
The mass ratio of silica aerogel is 1-10：1, as the mass ratio of dodecane and aerosil increases, system thermal stability
Enhancing.The thickness of phase-change material can be adjusted to a certain extent, can be 0.05-1cm, preferred thickness 0.1-0.3cm.Resistance wire
For metal alloy, preferably constantan wire or nickel filament alloy wire, resistance wire length can be adjusted as needed, in ceramic shell
Wire resistor number can be that one or more are connected in series between each other when having multiple.Insulating ceramics plug is hollow or real
Core structure can be alumina porcelain or aluminium oxide.
Compared with prior art, the advantageous effect of cement resistor of the present invention is：1, it is provided with phase transformation material outside wire resistor
The bed of material, phase-change material are low-temperature phase-change material dodecane and silicon dioxide silica aerogel composite material, the phase-change material phase transition temperature
It is low, heat production inside cement resistor can be quickly absorbed, resistance temperature is effectively reduced, improves security performance and resistor life；2, it makes pottery
One or more can be arranged in wire resistor in ceramic shell, and resistance wire length is adjustable in wire resistor, effectively raises cement
The resistance scope of application；3, cement resistor assembling, assembly are simple, and production efficiency is high, at low cost.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples；
Fig. 1 is cement resistor structural schematic diagram of the present invention.
In figure, 1- ceramic shells, 2- wire resistors, 3- lead terminals, 4- insulating ceramics plugs, 5- cement filled layers, 6-
Phase-change material layers, 7- resistance wires.
Specific implementation mode
Presently in connection with drawings and examples, the present invention is described in further detail, these attached drawings are simplified signal
Figure, the basic structure of the invention will be illustrated schematically only, therefore it only shows the composition relevant to the invention.
As shown in Figure 1, a kind of cement resistor, including ceramic shell 1, wire resistor 2, lead terminal 3, insulating ceramics plug
4, cement filled layer 5, phase-change material layers 6, the wire resistor 2 are wrapped in using resistance wire 7 on insulating ceramics plug 4, and
Lead terminal 3 is respectively welded in 7 both ends of resistance wire, and wire resistor 2 is located in ceramic shell 1, and it is outer that 3 one end of lead terminal is located at ceramics
In shell 1, the other end extends to outside ceramic shell 1, and cement, 2 table of wire resistor are filled between wire resistor 2 and ceramic shell 1
Uniformly one layer of certain thickness phase-change material layers 6 of cladding, the phase-change material are dodecane/aerosil compound phase in face
Become material.
Embodiment 1
A kind of cement resistor, including ceramic shell, wire resistor, lead terminal, insulating ceramics plug, cement filled layer,
Phase-change material layers, the wire resistor are wrapped in using constantan wire in alumina porcelain hollow bar, and are respectively welded at resistance wire both ends
Lead terminal, a wire resistor are located in ceramic shell, and lead terminal one end is located in ceramic shell, and the other end extends to pottery
Outside ceramic shell, the phase-change material layers of one layer of 0.05cm thickness of wire resistor coated with uniform, the phase-change material is that mass ratio is
1：1 dodecane/aerosil composite phase-change material.
Embodiment 2
A kind of cement resistor, including ceramic shell, wire resistor, lead terminal, insulating ceramics plug, cement filled layer,
Phase-change material layers, the wire resistor are wrapped in using nickel filament alloy wire on aluminium oxide solid bar, and at resistance wire both ends point
Other welding lead terminal, a wire resistor are located in ceramic shell, and lead terminal one end is located in ceramic shell, and the other end prolongs
It reaches outside ceramic shell, the phase-change material layers of one layer of 1cm thickness of wire resistor coated with uniform, the phase-change material is mass ratio
It is 10：1 dodecane/aerosil composite phase-change material.
Embodiment 3
A kind of cement resistor, including ceramic shell, wire resistor, lead terminal, insulating ceramics plug, cement filled layer,
Phase-change material layers, the wire resistor are wrapped in using nickel filament alloy wire on aluminium oxide solid bar, and at resistance wire both ends point
Other welding lead terminal has two wire resistors to be arranged in series in ceramic shell, first wire resistor one end lead and second
Another corresponding lead terminal of a wire resistor extends to outside ceramic shell, one layer of wire resistor coated with uniform
The phase-change material layers of 0.1cm thickness, the phase-change material are that mass ratio is 5：1 dodecane/aerosil composite phase-change
Material.
Embodiment 4
A kind of cement resistor, including ceramic shell, wire resistor, lead terminal, insulating ceramics plug, cement filled layer,
Phase-change material layers, the wire resistor are wrapped in using nickel filament alloy wire on aluminium oxide solid bar, and at resistance wire both ends point
Other welding lead terminal, a wire resistor are located in ceramic shell, and lead terminal one end is located in ceramic shell, and the other end prolongs
It reaches outside ceramic shell, the phase-change material layers of one layer of 0.1cm thickness of wire resistor coated with uniform, the phase-change material is quality
Than being 8：1 dodecane/aerosil composite phase-change material.
Embodiment 5
A kind of cement resistor, including ceramic shell, wire resistor, lead terminal, insulating ceramics plug, cement filled layer,
Phase-change material layers, the wire resistor are wrapped in using nickel filament alloy wire on aluminium oxide solid bar, and at resistance wire both ends point
Other welding lead terminal, a wire resistor are located in ceramic shell, and lead terminal one end is located in ceramic shell, and the other end prolongs
It reaches outside ceramic shell, the phase-change material layers of one layer of 0.3cm thickness of wire resistor coated with uniform, the phase-change material is quality
Than being 8：1 dodecane/aerosil composite phase-change material.
Based on the above description of the preferred embodiments of the present invention, through the above description, related personnel completely can be with
Without departing from the scope of the technological thought of the present invention', various changes and amendments are carried out.The technical scope of this invention
It is not limited to the contents of the specification, it is necessary to determine the technical scope according to the scope of the claims.
Claims (6)
1. a kind of cement resistor, including ceramic shell, wire resistor, lead terminal, insulating ceramics plug, cement filled layer, phase
Change material layer, the wire resistor are wrapped in using resistance wire on insulating ceramics plug, and are respectively welded and are drawn at resistance wire both ends
Line terminals, wire resistor are located in ceramic shell, and lead terminal one end is located in ceramic shell, and the other end extends to ceramic shell
Outside, cement is filled between wire resistor and ceramic shell, it is characterised in that：One layer of wire resistor coated with uniform is certain thick
The phase-change material layers of degree, the phase-change material are dodecane/aerosil composite phase-change material.
2. a kind of cement resistor according to claim 1, it is characterised in that：The phase-change material layer thickness is 0.05-
1cm。
3. a kind of cement resistor according to claim 2, it is characterised in that：The phase-change material layer thickness is 0.1-
0.3cm。
4. a kind of cement resistor according to claim 1, it is characterised in that：Resistance wire is constantan wire or nickel filament alloy
Line.
5. a kind of cement resistor according to claim 1, it is characterised in that：Dodecane described in phase-change material and affiliated two
The mass ratio of silica aerogel is 1-10：1.
6. a kind of cement resistor according to claim 1, it is characterised in that：The insulating ceramics plug be alumina porcelain or
Aluminium oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810520349.6A CN108735404A (en) | 2018-05-28 | 2018-05-28 | A kind of cement resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810520349.6A CN108735404A (en) | 2018-05-28 | 2018-05-28 | A kind of cement resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108735404A true CN108735404A (en) | 2018-11-02 |
Family
ID=63936339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810520349.6A Pending CN108735404A (en) | 2018-05-28 | 2018-05-28 | A kind of cement resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108735404A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114213102A (en) * | 2021-12-03 | 2022-03-22 | 长沙市康荣新材料有限公司 | Method for preparing cement resistor shell by utilizing waste materials or recycled tailings |
| CN117116577A (en) * | 2023-09-14 | 2023-11-24 | 东莞美福电子有限公司 | Automobile BMS cement resistor and production equipment thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56147050A (en) * | 1980-04-16 | 1981-11-14 | Kaaku:Kk | Ammonia exclusive element uning thin platinum film resistor and automatic toilet ventilation fan using said element |
| CN201315203Y (en) * | 2008-12-22 | 2009-09-23 | 东莞市晴远电子有限公司 | Novel ceramic resistor |
| CN201859725U (en) * | 2010-09-10 | 2011-06-08 | 东莞市福德电子有限公司 | Steel pipe cement resistor |
| CN104882234A (en) * | 2015-06-05 | 2015-09-02 | 广东明路电力电子有限公司 | Power resistor of three-dimensional network structure and processing technique of power resistor |
| CN108039255A (en) * | 2017-12-22 | 2018-05-15 | 南京萨特科技发展有限公司 | A kind of fuse-resistor and preparation method thereof |
-
2018
- 2018-05-28 CN CN201810520349.6A patent/CN108735404A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56147050A (en) * | 1980-04-16 | 1981-11-14 | Kaaku:Kk | Ammonia exclusive element uning thin platinum film resistor and automatic toilet ventilation fan using said element |
| CN201315203Y (en) * | 2008-12-22 | 2009-09-23 | 东莞市晴远电子有限公司 | Novel ceramic resistor |
| CN201859725U (en) * | 2010-09-10 | 2011-06-08 | 东莞市福德电子有限公司 | Steel pipe cement resistor |
| CN104882234A (en) * | 2015-06-05 | 2015-09-02 | 广东明路电力电子有限公司 | Power resistor of three-dimensional network structure and processing technique of power resistor |
| CN108039255A (en) * | 2017-12-22 | 2018-05-15 | 南京萨特科技发展有限公司 | A kind of fuse-resistor and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 陈嘉杰: "十二烷/气相二氧化硅复合相变材料的制备及蓄冷特性研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114213102A (en) * | 2021-12-03 | 2022-03-22 | 长沙市康荣新材料有限公司 | Method for preparing cement resistor shell by utilizing waste materials or recycled tailings |
| CN114213102B (en) * | 2021-12-03 | 2022-12-23 | 长沙市康荣新材料有限公司 | Method for preparing cement resistor shell by utilizing waste materials or recycled tailings |
| CN117116577A (en) * | 2023-09-14 | 2023-11-24 | 东莞美福电子有限公司 | Automobile BMS cement resistor and production equipment thereof |
| CN117116577B (en) * | 2023-09-14 | 2024-04-30 | 东莞美福电子有限公司 | Automobile BMS cement resistor and production equipment thereof |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181102 |
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| RJ01 | Rejection of invention patent application after publication |