CN110475395A - A kind of PTC heat source - Google Patents
A kind of PTC heat source Download PDFInfo
- Publication number
- CN110475395A CN110475395A CN201910802160.0A CN201910802160A CN110475395A CN 110475395 A CN110475395 A CN 110475395A CN 201910802160 A CN201910802160 A CN 201910802160A CN 110475395 A CN110475395 A CN 110475395A
- Authority
- CN
- China
- Prior art keywords
- cooling fin
- electrode
- ptcr
- heat source
- resistor disc
- 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
- 238000001816 cooling Methods 0.000 claims abstract description 47
- 238000009423 ventilation Methods 0.000 claims abstract description 20
- 230000017525 heat dissipation Effects 0.000 claims abstract description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 230000000191 radiation effect Effects 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 230000005855 radiation Effects 0.000 abstract description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 9
- 229910052782 aluminium Inorganic materials 0.000 description 9
- 238000005457 optimization Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
- H05B3/03—Electrodes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
Landscapes
- Resistance Heating (AREA)
- Thermistors And Varistors (AREA)
Abstract
The invention discloses a kind of PTC heat sources, belong to heating device, the cooling fin heat dissipation area of existing ptc heater is small, the heat-conducting area of cooling fin and PTCR resistor disc is small, it is unfavorable for radiating, cooling fin of the invention has the prominent radiating boss in ventilation gap, thus increasing heat radiation area, it is especially increased when air-flow passes through and the contact area of air-flow, to increase radiating efficiency.The preferred linear of wave crest, trough of cooling fin of the present invention promotes heat conduction efficiency to increase the contact area of cooling fin and electrode, is conducive to thus increasing heat radiation effect.Moreover, the electrode of cooling fin of the present invention is in frame-like and surrounds cooling fin, the wave crest and trough of cooling fin are close to the medial surface of electrode, and PTCR resistor disc is close to the lateral surface of electrode, conducive to the PTC heat source for being assembled different capacity configuration according to demand.
Description
Technical field
The invention belongs to heating devices, and in particular to a kind of PTC heat source is mainly used for that blower realization is cooperated to take on heater
It is warm.
Background technique
Existing ptc heater is by PTCR(posive temperature coefficient thermistor, positive temperature
Coefficient resistance) resistor disc and cooling fin composition, wherein most of shape of cooling fin be waveform, this shape
The cooling fin heat dissipation area of shape is small, and heat dissipation effect is bad, and small with the heat-conducting area of PTCR resistor disc, is unfavorable for radiating.
In addition, the cooling fin of existing ptc heater is mostly aluminum and aluminum alloy mateial, aluminum and aluminum alloy mateial thermal coefficient is small
(155-237W/M.K), radiating efficiency is low, and heat dissipation effect is bad.
Summary of the invention
The technical problem to be solved in the present invention and the technical assignment of proposition are that the cooling fin of existing ptc heater is overcome to radiate
The small defect of area provides a kind of PTC heat source that radiating efficiency is high, and increases cooling fin and PTCR resistor disc on this basis
Heat-conducting area improves heat dissipation effect.
In order to achieve the above objectives, PTC heat source of the invention, including PTCR resistor disc, electrode, corrugated fin, it is described to dissipate
Backing has wave crest, trough, forms ventilation gap, the one side of the electrode between adjacent wave crest and between adjacent trough
It is tightly attached on the PTCR resistor disc conductive with the PTCR resistor disc, the another side of the electrode is tightly attached to the heat dissipation
On piece and the heat sink conducts heat, it is characterized in that: the cooling fin has the prominent radiating boss in the ventilation gap.
As optimization technique means: maintaining secondary ventilation gap between the radiating boss and cooling fin.
As optimization technique means: the radiating boss is to be punched to be formed from the cooling fin.
As optimization technique means: the radiating boss is distributed at least two on the extending direction of the ventilation gap
It is a.
As optimization technique means: the wave crest, trough are linear.
As optimization technique means: the wave crest, trough are in symmetrical curved shape.
As optimization technique means: the electrode is in frame-like and surrounds the cooling fin, the wave of the cooling fin
Peak and trough are close to the medial surface of the electrode, and the PTCR resistor disc is close to the lateral surface of the electrode, the electricity
Extend wiring pole in pole.
As optimization technique means: the PTCR resistor disc is clamped by two adjacent electrodes, and the two of the PTCR resistor disc
It is close to the lateral surface of two adjacent electrodes respectively in side.
As optimization technique means: the PTCR resistor disc is uniformly distributed.
As optimization technique means: the corrugated fin, electrode are made of copper.
Cooling fin of the invention has the prominent radiating boss in ventilation gap, thus increasing heat radiation area, especially
It increases when air-flow passes through and the contact area of air-flow, to increase radiating efficiency.
The preferred linear of wave crest, trough of cooling fin of the present invention promotes to increase the contact area of cooling fin and electrode
Heat conduction efficiency is conducive to thus increasing heat radiation effect.
The electrode of cooling fin of the present invention is in frame-like and surrounds cooling fin, the wave crest and trough of cooling fin and the inside of electrode
Face is close to, and PTCR resistor disc is close to the lateral surface of electrode, conducive to the PTC for being assembled different capacity configuration according to demand
Heat source.
Cooling fin of the invention, electrode are made of copper, and the thermal coefficient of copper is 1.6 times of aluminium or so, are dissipated relative to aluminum
Backing, radiating efficiency is high, good heat dissipation effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of PTC heat source of the present invention；
Fig. 2 is the decomposition diagram of structure shown in Fig. 1；
Fig. 3 is the schematic diagram of cooling fin of the present invention；
Fig. 4 is the expanded schematic diagram of cooling fin of the present invention；
Figure label explanation:
01-PTCR resistor disc；
02- electrode, 21- wiring pole；
03- cooling fin, 31- wave crest, 32- trough, 33- ventilation gap, 34- radiating boss, 35- secondary ventilation gap.
Specific embodiment
Below in conjunction with Figure of description, the present invention will be further described.
PTC heat source as shown in Figs. 1-2, including PTCR resistor disc 01, electrode 02, corrugated fin shown in Fig. 3 03 dissipate
Backing 03 has wave crest 31, trough 32, and ventilation gap 33 is formed between adjacent wave crest and between adjacent trough, electrode 02
One side is tightly attached on PTCR resistor disc 01 with PTCR resistor disc conduction, on the cooling fin 03 that the another side of electrode 02 is tightly attached to
With heat sink conducts heat, thus, after electrode connects electricity, PTCR resistor disc generates heat and is transmitted to cooling fin, is radiated by cooling fin, when being used in
When on heater, air-flow is generated by blower, flow through ventilation gap air-flow be heated after flow direction need the space warmed oneself, cooling fin
03 has the prominent radiating boss 34 in ventilation gap, to increase heat dissipation area, when being especially increased air-flow and passing through
With the contact area of air-flow, to increase radiating efficiency.Especially, corrugated fin, electrode are made of copper.The thermal coefficient of copper
350-398W/M.K, thermal coefficient are 1.6 times of aluminium or so, and relative to aluminum thermal fin, radiating efficiency is high, good heat dissipation effect.
Since setting radiating boss can reduce the circulation area of ventilation gap and increase the resistance to air-flow, in order to subtract as far as possible
Small such influence, maintains secondary ventilation gap 35 between radiating boss 34 and cooling fin 03.Preferably, radiating boss be from
It is punched and is formed on cooling fin.Cooling fin is made of thin slice Heat Conduction Material such as thin aluminum sheet, the first punching on thin aluminum sheet as shown in Figure 4
Radiating boss (expanded schematic diagram that state at this time is also cooling fin) out, then thin aluminum sheet is bent can form heat dissipation
Piece.Moreover, radiating boss in figure is isosceles trapezoid, when specific implementation, is also possible to the shapes such as rectangle, isosceles triangle.
According to the specification of product, the thickness (perpendicular to the size in paper direction) of PTC heat source as shown in Figure 1 is larger
When, radiating boss is distributed at least two on the extending direction (perpendicular to the direction of paper) of ventilation gap.
In order to increase the contact area of cooling fin and electrode, promotes heat conduction efficiency, be conducive to thus increasing heat radiation effect, cooling fin
Wave crest 31, the preferred linear of trough 32, thus can form the rectangular ventilation gap of isosceles trapezoid ventilation gap or diagram.But
In the specific implementation, wave crest, trough be can be in symmetrical curved shape, such as the shape of sine wave.
As shown in Fig. 2, electrode 02 is in order to be conducive to be assembled the PTC heat source of different capacity configuration according to demand
Frame-like simultaneously surrounds cooling fin 03, and the wave crest 31 and trough 32 of cooling fin be close to the medial surface of electrode, PTCR resistor disc 01 and
The lateral surface of electrode 02 is close to, and electrode extends wiring pole 21 for connecting external cord.Moreover, PTCR resistor disc is by adjacent
The lateral surface of two adjacent electrodes is close in the clamping of two electrodes, the two sides of PTCR resistor disc respectively, accordingly, it may be convenient to pass through
The mode of superposition is assembled.
In order to generate heat uniformly, the PTCR resistor disc in figure is uniformly distributed.
Claims (10)
1. a kind of PTC heat source, including PTCR resistor disc, electrode, corrugated fin, the cooling fin has wave crest, trough, adjacent
Wave crest between and adjacent trough between form ventilation gap, the one side of the electrode is tightly attached on the PTCR resistor disc
It is conductive with the PTCR resistor disc, the another side of the electrode be tightly attached on the cooling fin with the heat sink conducts heat,
It is characterized in that: the cooling fin has the prominent radiating boss in the ventilation gap.
2. PTC heat source according to claim 1, it is characterized in that: being maintained between the radiating boss and cooling fin auxiliary
Help ventilation gap.
3. PTC heat source according to claim 2, it is characterized in that: the radiating boss is punched from the cooling fin
It is formed.
4. PTC heat source according to claim 1, it is characterized in that: the radiating boss is in the extension side of the ventilation gap
At least two are distributed with upwards.
5. PTC heat source according to claim 1, it is characterized in that: the wave crest, trough are linear.
6. PTC heat source according to claim 1, it is characterized in that: the wave crest, trough are in symmetrical curved shape.
7. PTC heat source according to claim 1, it is characterized in that: the electrode is in frame-like and surrounds the heat dissipation
Piece, the wave crest and trough of the cooling fin are close to the medial surface of the electrode, and the PTCR resistor disc is outer with the electrode
Side is close to, and the electrode extends wiring pole.
8. PTC heat source according to claim 7, it is characterized in that: the PTCR resistor disc is clamped by two adjacent electrodes, institute
It is close to the lateral surface of two adjacent electrodes respectively in the two sides for stating PTCR resistor disc.
9. PTC heat source according to claim 1, it is characterized in that: the PTCR resistor disc is uniformly distributed.
10. PTC heat source according to claim 1, it is characterized in that: the corrugated fin, electrode are made of copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910802160.0A CN110475395A (en) | 2019-08-28 | 2019-08-28 | A kind of PTC heat source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910802160.0A CN110475395A (en) | 2019-08-28 | 2019-08-28 | A kind of PTC heat source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110475395A true CN110475395A (en) | 2019-11-19 |
Family
ID=68513795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910802160.0A Pending CN110475395A (en) | 2019-08-28 | 2019-08-28 | A kind of PTC heat source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110475395A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2109519U (en) * | 1991-12-19 | 1992-07-08 | 中国科学院上海冶金研究所 | Fin type large power ceramic heater |
| CN2335333Y (en) * | 1998-06-11 | 1999-08-25 | 谢采芬 | Non-coil type electric-heating assembly |
| US20030160043A1 (en) * | 2002-01-15 | 2003-08-28 | David & Baader Gmbh | Lamella type radiator element having foldable projections and a notch |
| CN203193916U (en) * | 2013-01-08 | 2013-09-11 | 张惠群 | Ripple heat radiation strip |
| CN108495388A (en) * | 2018-05-16 | 2018-09-04 | 奥普家居股份有限公司 | A kind of PTC heaters using graphene thermal conductivity |
| CN210431919U (en) * | 2019-08-28 | 2020-04-28 | 奥普家居股份有限公司 | PTC heat source |
-
2019
- 2019-08-28 CN CN201910802160.0A patent/CN110475395A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2109519U (en) * | 1991-12-19 | 1992-07-08 | 中国科学院上海冶金研究所 | Fin type large power ceramic heater |
| CN2335333Y (en) * | 1998-06-11 | 1999-08-25 | 谢采芬 | Non-coil type electric-heating assembly |
| US20030160043A1 (en) * | 2002-01-15 | 2003-08-28 | David & Baader Gmbh | Lamella type radiator element having foldable projections and a notch |
| CN203193916U (en) * | 2013-01-08 | 2013-09-11 | 张惠群 | Ripple heat radiation strip |
| CN108495388A (en) * | 2018-05-16 | 2018-09-04 | 奥普家居股份有限公司 | A kind of PTC heaters using graphene thermal conductivity |
| CN210431919U (en) * | 2019-08-28 | 2020-04-28 | 奥普家居股份有限公司 | PTC heat source |
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