CN103388891B - Electric heating device and air conditioner - Google Patents
Electric heating device and air conditioner Download PDFInfo
- Publication number
- CN103388891B CN103388891B CN201210146296.9A CN201210146296A CN103388891B CN 103388891 B CN103388891 B CN 103388891B CN 201210146296 A CN201210146296 A CN 201210146296A CN 103388891 B CN103388891 B CN 103388891B
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- Prior art keywords
- electric heater
- heat
- heater unit
- unit
- thermal vias
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- 238000005485 electric heating Methods 0.000 title abstract 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 238000009423 ventilation Methods 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims description 34
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 239000006200 vaporizer Substances 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 abstract 3
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 230000005855 radiation Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 4
- 238000011105 stabilization Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention provides an electric heating device and an air conditioner, wherein more than one heat dissipation through holes penetrating through two ends of a heat dissipation fin component are formed in the heat dissipation fin component; the electric heating device of the air conditioner is positioned beside the evaporator; the electric heating device is arranged in an air inlet area of the ventilation device. Therefore, the invention improves the radiating fin structure of the electric heating device, designs the radiating fin into a porous section shape by perforating the radiating fin, designs the shape and the position distribution of the holes according to the indoor unit of the air conditioner and the structure of the electric heating device, improves the airflow flow in the electric heating device, improves the heating efficiency of the PTC element, reduces the resistance of the electric heating device to the airflow, improves the airflow flow in the electric heating device, increases the airflow convection and the heat conduction, improves the efficiency of the electric heating device, reduces the total heating noise value of the air conditioner by 2-3 dB (A), reduces the maximum peak value of the noise, eliminates the abnormal noise and improves the noise performance of the air conditioner.
Description
Technical field
The present invention relates to refrigeration and air-conditioning technical field, particularly relate to a kind of electric heater unit and air-conditioner.
Background technology
When heat pump air conditioner runs under heating condition, thus reached to indoor with extraneous heat exchange by heat exchanger
The purpose of environment heat supply, during use in winter heat pump type air conditioner, along with the reduction of temperature, system heating capacity
It is gradually lowered.Generally, in order to make up the shortcoming of heating capacity difference under worst cold case, air-conditioner is additionally arranged one
Planting PTC electric heater unit, PTC electric heater unit can be according to the change of room temperature and indoor set air quantity
Size change caloric value, thus regulate indoor temperature rightly, reach the mesh heated rapid, powerful
, and there is the feature such as stable performance, the safe flames of anger so that PTC electric heater unit becomes current air-conditioning
The major way of device auxiliary electrical heater.
But structure design due to the restriction in air conditioner indoor machine air duct space and electric heater unit itself etc. is former
Cause, causes electric heater unit to produce and bigger heats extraordinary noise, directly affect the noiseproof feature of air-conditioner.
It is to say, the heating capacity of heat pump air conditioner is gradually lowered along with the reduction of ambient temperature, in order to
Improve the heating effect of heat pump type air conditioner, air-conditioner is additionally arranged a kind of PTC electric heater unit.Due to sky
Adjust the narrow space in air conditioner indoor machine air channel and the heat radiating fin structure design of tradition electric heater unit, such as Fig. 3, show
Some electric heater units include heat-generating pipe 101, cooling fin part 102 and reinforcing plate 103, reinforcing plate 103
Being positioned at the outside of cooling fin part 102, the transverse shape of cooling fin part 102 is rectangle, due to heat radiation
The chip part 102 barrier effect to air channel air-flow, causes indoor set air channel air current flow not smooth, and PTC electricity adds
Gaseous exchange and the thermal conduction effect of heat are the best, and the heat making heating aluminum pipe self send is difficult to shed, PTC
Element works long hours in high temperature reduction, and power reduces, and easily generation heats extraordinary noise, direct shadow
Ring the noiseproof feature of air-conditioner.So improving the heat radiating fin structure of electric heater unit and installation site is to reduce sky
Device is adjusted to heat the key factor of noise.
Summary of the invention
The technical problem to be solved is to provide a kind of electric heater unit, good effect of heat exchange, can drop
Noise when low air-conditioner runs, tonequality is improved.
Additionally, another technical problem to be solved by this invention is to provide a kind of air-conditioner, its electrical heating
The good effect of heat exchange of device, noise during operation reduces, and tonequality is improved.
The present invention is achieved through the following technical solutions:
Electric heater unit, includes heat-generating pipe and cooling fin part, and the medial surface of described cooling fin part is for even
Junction, is connected with the lateral wall of heat-generating pipe；Wherein, described cooling fin part is provided with more than one running through
The thermal vias at cooling fin part two ends.
Further, described thermal vias is arranged along the centerline direction of heat-generating pipe.
Further, described cooling fin part includes fin, and described thermal vias is positioned in fin.
Further, cooling fin part includes the first fin unit and the second fin unit, respectively
It is positioned at the both sides of heat-generating pipe；The transverse section of described first fin unit and the second fin unit is tetragon,
Having the connection limit that the outer side edges of the transverse section with heat-generating pipe is connected, described thermal vias is positioned at tetragon
Portion.
Air-conditioner, includes vaporizer, ventilation unit and above-mentioned electric heater unit；Described electric heater unit
It is positioned at the side of vaporizer；Described electric heater unit is arranged in ventilation unit air intake region.
Beneficial effects of the present invention is as follows:
The electric heater unit of the present invention, more than one runs through cooling fin part owing to cooling fin part is provided with
The thermal vias at two ends；And the air-conditioner of the present invention, electric heater unit is positioned at the side of vaporizer；Described electricity
Heater is arranged on ventilation unit air intake region.Therefore, present invention improves over the fin of electric heater unit
Structure, by the way of to fin perforation, becomes the cross sectional shape of porous, according to air-conditioning by heat sink design
The indoor set of device and the structure of electric heater unit design shape and the position distribution in hole, improve electric heater unit
Interior air current flow, improves the heating efficiency of PTC-element, reduces the electric heater unit resistance to air-flow simultaneously
Power, improves the air current flow in electric heater unit, increases gaseous exchange amount and conduction of heat, improves electricity
The efficiency of heater, reduces and heats noise, and air conditioner heat-production noise total value reduces by 2～3dB (A), simultaneously
Reduce noise peak-peak, thus eliminate extraordinary noise, improve the noiseproof feature of air-conditioner.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the electric heater unit of the present invention；
Fig. 2 is the vertical section structure schematic diagram of the electric heater unit of the present invention；
Fig. 3 is the cross-sectional configuration schematic diagram of the electric heater unit of prior art；
Fig. 4 a is the cross-sectional configuration schematic diagram of the electric heater unit of the present invention；
Fig. 4 b is the thermal vias position relationship structural representation of the electric heater unit of the present invention；
Fig. 5 a be the cross section of the electric heater unit of the present invention be circular thermal vias structural representation；
Fig. 5 b be the cross section of the electric heater unit of the present invention be rectangular thermal vias structural representation；
Fig. 5 c is the thermal vias structural representation that cross section is rhombus of the electric heater unit of the present invention；
Fig. 5 d be the cross section of the electric heater unit of the present invention be hexagonal thermal vias structural representation；
Fig. 6 is the resistance-temperature characteristics curve of PTC-element.
Description of reference numerals:
101, heat-generating pipe, 102, cooling fin part, 103, reinforcing plate, 104, support, 105, insulation solid
Determine frame, 106, thermal fuse-link, 107, temperature limiter, 108, high temperature wire, 1021, fin broadside, 1022,
Thermal vias.
Detailed description of the invention
In order to solve the problems of the prior art, the present invention proposes a kind of electric heater unit, as Fig. 1,2,
Shown in 4a, 4b, include heat-generating pipe 101 and cooling fin part 102, described cooling fin part 102 interior
Side is joint face, is connected with the lateral wall of heat-generating pipe 101；Wherein, described cooling fin part 102 is arranged
There is the more than one thermal vias 1022 running through cooling fin part two ends.
Further, described thermal vias 1022 is arranged along the centerline direction of heat-generating pipe 101.
Further, described cooling fin part 102 includes fin, and described thermal vias 1022 is positioned at
In fin.
Further, cooling fin part 102 includes the first fin unit and the second fin unit,
Lay respectively at the both sides of heat-generating pipe；The transverse section of described first fin unit and the second fin unit is four
Limit shape, has the connection limit that the outer side edges with the transverse section of heat-generating pipe 101 is connected, and described thermal vias is positioned at
The inside of tetragon 1022.
Described heat-generating pipe 101 is heating aluminum pipe.
As it is shown in figure 1, electric heater unit also includes: be positioned at heat-generating pipe 101 and cooling fin part 102 left end
The support 104 in portion, be positioned at heat-generating pipe 101 and the insulation fixed mount 105 of cooling fin part 102 right part and
High temperature wire 108；High temperature wire 108 is electrically connected with heat-generating pipe 101.
Electric heater unit also includes: be arranged on the thermal fuse-link 106 in insulation fixed mount 105 and temperature limiter 107,
Thermal fuse-link 106 and temperature limiter 107 are electrically connected between high temperature wire 108 and heat-generating pipe 101.
As in figure 2 it is shown, the lateral surface of described cooling fin part 102 is provided with reinforcing plate 103, reinforcing plate 103
On be provided with multiple air vent.
The present invention includes techniques below feature: the heat sink design of electric heater unit becomes many pore cross sections, the shape in hole
Shape, position distribution design all in accordance with the structure of indoor apparatus of air conditioner and the heat concentrated area of electric heater unit.
Quantity N of described thermal vias 1022 is 1～20.
Such as Fig. 4 a, 4b, the equivalent diameter of described thermal vias 1022 is D, the first fin unit or second
The a width of L of fin of fin unit, wherein 0.1 ＜ D/L ＜ 0.7.
The position of thermal vias 1022 the most closely can affect heat radiation with heating aluminum pipe distance, therefore thermal vias 1022
Center need to maintain a certain distance with heating aluminum pipe, then the center of thermal vias 1022 and the distance of heating aluminum pipe
S1 is: 0.15 ＜ S1/D ＜ 10.
Meanwhile, thermal vias 1022 also needs suitably with distance S2 of fin broadside 1021, so that porous
It is in heat concentrated area, reduces the concentration of electric heater unit heat, wherein S2 ＞ 0.1D.
For ensureing the structural strength of electric heater unit, thermal vias 1022 needs big with distance S3 of reinforcing plate 103
In 0.08D.
The maximum of thermal vias 1022 interval S
A is the horizontal stroke of cooling fin part 102
The width dimensions of section, it may be assumed that the size dimension of fin broadside 1021；B is the horizontal stroke of cooling fin part 102
The length dimension of section.
Such as Fig. 5 a, 5b, 5c, 5d, same fin can design difform thermal vias.Heat radiation is logical
The distribution in hole, hole can be according to regular array, it is also possible to according to actual flow situation and the electrical heating dress of air-flow
Put the most random arrangement of structure.The cross section of thermal vias 1022 for example, circle, rectangle, rhombus,
Hexagon or other polygons.
Along electric heater unit gas effluent to going out flow path direction, the area of thermal vias 1022 is gradually increased, hole
Interval S is gradually reduced.
The present invention also proposes a kind of air-conditioner, includes vaporizer, ventilation unit and above-mentioned electric heater unit；
Described electric heater unit is positioned at the side of vaporizer；Described electric heater unit is arranged on ventilation unit air intake region
In.
The heat radiating fin structure of this electric heater unit reduces the fin resistance to air-flow, makes inside electric heater unit
Air current flow more smooth and easy, increase flow and conduction of heat, make air-flow can take away PTC-element in time and sent out
The heat gone out, beneficially electrical heating heat radiation, temperature stabilization when making electric heater unit work below curie point,
Improve the efficiency of electric heater unit, reduce and heat noise and extraordinary noise, improve heating of air-conditioner
Noiseproof feature.
Experimental result is as follows:
The noise experiment Data Comparison of two kinds of electric heater units installed by air-conditioner
Embodiment:
Embodiment accompanying drawings is as follows:
As shown in Fig. 4 a, 4b, the fin Section Design of electric heater unit becomes many pore cross sections, thermal vias 1022
It is symmetrically dispersed on the fin of heating aluminum pipe both sides, every side fin has an a diameter of 2mm
Circular hole and a length of side be the diamond hole of 1.7mm, aperture is moderate to keep electrically heated heating effect.Hole
Interval S is 6mm, and distance S1 between center, hole and heating aluminum pipe is 4.5mm, so that heating aluminum pipe
Heat fully shed by fin.Thermal vias 1022 and distance S2 of fin broadside 1021
For 4.6mm, it is to avoid heat is concentrated.Thermal vias 1022 is 4mm with distance S3 of reinforcing plate 103, with
Ensure the structural strength of whole electric heater unit.
As shown in Figure 6, the resistance-temperature characteristics curve of PTC-element can be divided into three sections, in positive temperature coefficient
Section resistance value has a sudden change, and wherein the point of the TC in curve is referred to as curie point.Operationally, existing PTC
Element is generally stabilized at resistance larger part, makes the thermal power of self be difficult to play.The present invention is PTC electrical heating
Device radiation sheet is designed to porous cross section, add air-flow to flow and conduction of heat, in time by PTC-element
The heat sent sheds, and makes element operationally, and resistance stabilization is in the negative temperature coefficient section started, to protect
Temperature stabilization during card work, below curie point, plays the power of element self.
The heat radiating fin structure of this electric heater unit reduces the fin resistance to air-flow, makes inside PTC-element
Air current flow more smooth and easy, increase flow, make air-flow can take away the heat that PTC-element is sent in time,
Being conducive to electrical heating heat radiation, temperature stabilization during to ensure that electric heater unit works, below curie point, improves
The efficiency of electric heater unit, reduces and heats noise and extraordinary noise, and improve air-conditioner heats noiseproof feature.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed,
But therefore can not be interpreted as the restriction to the scope of the claims of the present invention, electric heater unit described in the invention
Heat radiating fin structure includes but not limited to technical scheme described above.It should be pointed out that, for this area
Those of ordinary skill for, without departing from the inventive concept of the premise, it is also possible to make some deformation and
Improving, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended
Claim is as the criterion.
Claims (15)
1. electric heater unit, includes heat-generating pipe and cooling fin part, and the medial surface of described cooling fin part is
Joint face, is connected with the lateral wall of heat-generating pipe；It is characterized in that, described cooling fin part be provided with one with
On the thermal vias running through cooling fin part two ends；Described cooling fin part includes the first fin unit
With the second fin unit, lay respectively at the both sides of heat-generating pipe；The equivalent diameter of described thermal vias is D,
The a width of L of fin of the first fin unit or the second fin unit, wherein 0.1 ＜ D/L ＜ 0.7.
Electric heater unit the most according to claim 1, it is characterised in that described thermal vias is along sending out
The centerline direction of heat pipe is arranged.
Electric heater unit the most according to claim 2, it is characterised in that described cooling fin part includes
Fin, described thermal vias is had to be positioned in fin.
Electric heater unit the most according to claim 3, it is characterised in that described first fin unit
It is tetragon with the transverse section of the second fin unit, has what the outer side edges of the transverse section with heat-generating pipe was connected
Connecting limit, described thermal vias is positioned at the inside of tetragon.
Electric heater unit the most according to claim 1, it is characterised in that described heat-generating pipe is heating aluminum
Pipe.
Electric heater unit the most according to claim 4, it is characterised in that also include: be positioned at heat-generating pipe
With the support of cooling fin part left part, be positioned at the insulation fixed mount of heat-generating pipe and cooling fin part right part with
And high temperature wire；High temperature wire is electrically connected with heat-generating pipe.
Electric heater unit the most according to claim 6, it is characterised in that also include: be arranged on insulation
Thermal fuse-link in fixed mount and temperature limiter, thermal fuse-link and temperature limiter are electrically connected to high temperature wire and heating
Between pipe.
Electric heater unit the most according to claim 4, it is characterised in that outside described cooling fin part
Side is provided with reinforcing plate.
Electric heater unit the most according to claim 4, it is characterised in that the quantity of described thermal vias
N is 1～20.
Electric heater unit the most according to claim 4, it is characterised in that in described thermal vias
The heart with distance S1 of heat-generating pipe is: 0.15 ＜ S1/D ＜ 10.
11. electric heater units according to claim 10, it is characterised in that described thermal vias is with scattered
The distance S2 ＞ 0.1D of backing broadside.
12. electric heater units according to claim 11, it is characterised in that described thermal vias with add
Distance S3 of strong plate is more than 0.08D.
13. electric heater units according to claim 12, it is characterised in that described thermal vias spacing
The maximum of SA is the width dimensions of the transverse section of cooling fin part, it may be assumed that fin
The size dimension of broadside；B is the length dimension of the transverse section of cooling fin part.
14. electric heater units according to claim 4, it is characterised in that along electric heater unit gas
Body enters to flow to out flow path direction, and the area of thermal vias is gradually increased, and pitch of holes S is gradually reduced.
15. air-conditioners, it is characterised in that include vaporizer, ventilation unit and as claim 1 to
Electric heater unit in any of the one of 14；Described electric heater unit is positioned at the side of vaporizer；Described electricity
Heater is arranged in ventilation unit air intake region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210146296.9A CN103388891B (en) | 2012-05-11 | 2012-05-11 | Electric heating device and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210146296.9A CN103388891B (en) | 2012-05-11 | 2012-05-11 | Electric heating device and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103388891A CN103388891A (en) | 2013-11-13 |
| CN103388891B true CN103388891B (en) | 2016-08-31 |
Family
ID=49533243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210146296.9A Active CN103388891B (en) | 2012-05-11 | 2012-05-11 | Electric heating device and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103388891B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106211370B (en) * | 2016-09-23 | 2023-02-03 | 贵州遵义鑫阳电子科技有限公司 | Electric heating power regulating switch |
| CN106766031A (en) * | 2016-11-28 | 2017-05-31 | 深圳沃海森科技有限公司 | The auxiliary thermal of air conditioner |
| CN109780637A (en) * | 2019-03-13 | 2019-05-21 | 宁波奥克斯电气股份有限公司 | A kind of heating component, electric heater unit and ceiling machine |
| CN112312752B (en) * | 2020-11-27 | 2024-04-16 | 浙江工业大学 | Optimized structure of segment radiator for high-power locomotive |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH555629A (en) * | 1973-04-11 | 1974-10-31 | Tuerk & Hillinger Kg | ELECTRIC TUBULAR RADIATOR WITH COOLING SURFACES. |
| CN2330914Y (en) * | 1998-03-26 | 1999-07-28 | 深圳市金科特种材料有限公司 | PTC heating component for split air conditioner |
| EP1457743A1 (en) * | 2003-03-12 | 2004-09-15 | Behr France S.A.R.L. | Electric heater,esp. for a vehicle |
| CN201726547U (en) * | 2010-06-02 | 2011-01-26 | 珠海格力电器股份有限公司 | Electric heater for indoor unit of air conditioner |
| CN202561975U (en) * | 2012-05-11 | 2012-11-28 | 珠海格力电器股份有限公司 | Electric heating device and air conditioner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202085435U (en) * | 2011-06-02 | 2011-12-21 | 许昌一达机械制造有限公司 | Radiator |
-
2012
- 2012-05-11 CN CN201210146296.9A patent/CN103388891B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH555629A (en) * | 1973-04-11 | 1974-10-31 | Tuerk & Hillinger Kg | ELECTRIC TUBULAR RADIATOR WITH COOLING SURFACES. |
| CN2330914Y (en) * | 1998-03-26 | 1999-07-28 | 深圳市金科特种材料有限公司 | PTC heating component for split air conditioner |
| EP1457743A1 (en) * | 2003-03-12 | 2004-09-15 | Behr France S.A.R.L. | Electric heater,esp. for a vehicle |
| CN201726547U (en) * | 2010-06-02 | 2011-01-26 | 珠海格力电器股份有限公司 | Electric heater for indoor unit of air conditioner |
| CN202561975U (en) * | 2012-05-11 | 2012-11-28 | 珠海格力电器股份有限公司 | Electric heating device and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103388891A (en) | 2013-11-13 |
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