CN202561975U - Electric heating device and air conditioner - Google Patents
Electric heating device and air conditioner Download PDFInfo
- Publication number
- CN202561975U CN202561975U CN2012202123835U CN201220212383U CN202561975U CN 202561975 U CN202561975 U CN 202561975U CN 2012202123835 U CN2012202123835 U CN 2012202123835U CN 201220212383 U CN201220212383 U CN 201220212383U CN 202561975 U CN202561975 U CN 202561975U
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- China
- Prior art keywords
- electric heater
- heater unit
- heat
- fin
- hole
- 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.)
- Expired - Lifetime
Links
- 238000005485 electric heating Methods 0.000 title abstract description 5
- 238000009423 ventilation Methods 0.000 claims abstract description 8
- 230000005855 radiation Effects 0.000 claims description 43
- 238000001816 cooling Methods 0.000 claims description 35
- 238000010438 heat treatment Methods 0.000 claims description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- 239000003351 stiffener Substances 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 5
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 6
- 230000006641 stabilisation Effects 0.000 description 4
- 238000011105 stabilization Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 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
- 238000005057 refrigeration Methods 0.000 description 1
Images
Landscapes
- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
Abstract
The utility model provides an electric heating device and an air conditioner, because the radiating fin component is provided with more than one radiating through holes which run through the two ends of the radiating 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 utility model provides an improved electric heater unit's fin structure, through to the fenestrate mode of fin, design into porous cross sectional shape with the fin, shape and position distribution according to the indoor set of air conditioner and electric heater unit's structure design hole, it flows to improve the air current in the electric heater unit, improve PTC component's the efficiency of generating heat, the resistance of electric heater unit to the air current has been reduced simultaneously, the air current in having improved the electric heater unit flows, gas convection capacity and heat-conduction have been increased, the efficiency of electric heater unit has been improved, the air conditioner heats the noise total value and reduces 2 ~ 3dB , the biggest peak value of noise has been reduced simultaneously, thereby unusual noise has been eliminated, the noise performance of air conditioner has been improved.
Description
Technical field
The utility model relates to the refrigeration and air-conditioning technical field, particularly relates to a kind of electric heater unit and air-conditioner.
Background technology
When heat pump air conditioner moves under heating condition, thereby reach the purpose to the indoor environment heat supply through heat exchanger and extraneous heat exchange, winter, along with the reduction of temperature, system's heating capacity reduced gradually when using heat pump type air conditioner.Usually; In order to remedy the shortcoming of heating capacity difference under worst cold case, set up a kind of PTC electric heater unit in the air-conditioner, the PTC electric heater unit can change caloric value according to the variation of room temperature and the size of indoor set air quantity; Thereby regulate indoor temperature rightly; Reach rapid, the powerful purpose that heats, and have characteristics such as stable performance, the safe flames of anger, make the PTC electric heater unit become the auxiliary electrically heated main mode of present air-conditioner.
But owing to the restriction of air conditioner room unit duct space and the reasons such as structural design of electric heater unit itself, cause electric heater unit to produce the bigger extraordinary noise that heats, directly influence the noiseproof feature of air-conditioner.
That is to say that the heating capacity of heat pump air conditioner reduces along with the reduction of environment temperature gradually, in order to improve the heating effect of heat pump type air conditioner, has set up a kind of PTC electric heater unit in the air-conditioner.Because the narrow space in air conditioner room unit air channel and the design of the heat radiating fin structure of traditional electrical heater, like Fig. 3, the conventional electric heating device includes heat-generating pipe 101, cooling fin part 102 and stiffener 103; Stiffener 103 is positioned at the outside of cooling fin part 102; The transverse shape of cooling fin part 102 is a rectangle, because the barrier effect of 102 pairs of air channel air-flows of cooling fin part causes indoor set air channel air current flow not smooth; Electrically heated gaseous exchange of PTC and thermal conduction effect are not good; The heat that heating aluminum pipe self is sent is difficult to shed, and the PTC element works long hours in high temperature reduction, and power reduces; And be easy to generate and heat extraordinary noise, directly influence the noiseproof feature of air-conditioner.So improving the heat radiating fin structure and the installation site of electric heater unit is the key factor that reduces the air conditioner heat-production noise.
Summary of the invention
The utility model technical problem to be solved is to provide a kind of electric heater unit, good effect of heat exchange, and the noise in the time of can reducing the air-conditioner operation, tonequality improves.
In addition, the utility model another technical problem to be solved is to provide a kind of air-conditioner, the good effect of heat exchange of its electric heater unit, and the noise during operation reduces, and tonequality improves.
The utility model is realized through following technical scheme:
Electric heater unit includes heat-generating pipe and cooling fin part, and the medial surface of said cooling fin part is a joint face, links to each other with the lateral wall of heat-generating pipe; Wherein, said cooling fin part is provided with the more than one heat radiation through hole that runs through the cooling fin part two ends.
Further, said heat radiation through hole is along the centerline direction setting of heat-generating pipe.
Further, said cooling fin part includes fin, and said heat radiation through hole is arranged in fin.
Further, cooling fin part includes first fin unit and second fin unit, lays respectively at the both sides of heat-generating pipe; The cross section of said first fin unit and second fin unit is a quadrangle, has the fillet that is connected with the outer side edges in the cross section of heat-generating pipe, and said heat radiation through hole is positioned at tetragonal inside.
Air-conditioner includes evaporimeter, ventilation unit and above-mentioned electric heater unit; Said electric heater unit is positioned at the side of evaporimeter; Said electric heater unit is arranged in the ventilation unit air intake zone.
The beneficial effect of the utility model is following:
The electric heater unit of the utility model is because cooling fin part is provided with the more than one heat radiation through hole that runs through the cooling fin part two ends; And the air-conditioner of the utility model, electric heater unit are positioned at the side of evaporimeter; Said electric heater unit is arranged on ventilation unit air intake zone.Therefore, the utility model has improved the heat radiating fin structure of electric heater unit, through the mode to the fin perforation; Heat sink design is become the cross sectional shape of porous, design the shape and the position distribution in hole, improve the air current flow in the electric heater unit according to the structure of indoor machine of air-conditioner and electric heater unit; Improve the heating efficiency of PTC element, reduced the resistance of electric heater unit simultaneously, improved the air current flow in the electric heater unit air-flow; Increase gaseous exchange amount and heat conduction, improved the efficient of electric heater unit, reduced to heat noise; Air conditioner heat-production noise total value reduces by 2～3dB (A); Reduce the noise peak-peak simultaneously, thereby eliminated extraordinary noise, improved the noiseproof feature of air-conditioner.
Description of drawings
Fig. 1 is the overall structure sketch map of the electric heater unit of the utility model;
Fig. 2 is the vertical section structure sketch map of the electric heater unit of the utility model;
Fig. 3 is the cross-sectional configuration sketch map of the electric heater unit of prior art;
Fig. 4 a is the cross-sectional configuration sketch map of the electric heater unit of the utility model;
Fig. 4 b is the heat radiation lead to the hole site relational structure sketch map of the electric heater unit of the utility model;
Fig. 5 a is that the cross section of the electric heater unit of the utility model is circular heat radiation through-hole structure sketch map;
Fig. 5 b is that the cross section of the electric heater unit of the utility model is rectangular heat radiation through-hole structure sketch map;
Fig. 5 c is that the cross section of the electric heater unit of the utility model is the heat radiation through-hole structure sketch map of rhombus;
Fig. 5 d is that the cross section of the electric heater unit of the utility model is hexagonal heat radiation through-hole structure sketch map;
Fig. 6 is the resistance-temperature characteristics curve of PTC element.
Description of reference numerals:
101, heat-generating pipe, 102, cooling fin part, 103, stiffener, 104, support, 105, the insulation fixed mount, 106, thermal fuse-link, 107, temperature limiter, 108, high temperature wire, 1021, the fin broadside, 1022, the heat radiation through hole.
The specific embodiment
In order to solve the problems of the prior art; The utility model provides a kind of electric heater unit, shown in Fig. 1,2,4a, 4b, include heat-generating pipe 101 and cooling fin part 102; The medial surface of said cooling fin part 102 is a joint face, links to each other with the lateral wall of heat-generating pipe 101; Wherein, said cooling fin part 102 is provided with the more than one heat radiation through hole 1022 that runs through the cooling fin part two ends.
Further, said heat radiation through hole 1022 is along the centerline direction setting of heat-generating pipe 101.
Further, said cooling fin part 102 includes fin, and said heat radiation through hole 1022 is arranged in fin.
Further, cooling fin part 102 includes first fin unit and second fin unit, lays respectively at the both sides of heat-generating pipe; The cross section of said first fin unit and second fin unit is a quadrangle, has the fillet that is connected with the outer side edges in the cross section of heat-generating pipe 101, and said heat radiation through hole is positioned at the inside of quadrangle 1022.
Said heat-generating pipe 101 is the heating aluminum pipe.
As shown in Figure 1, electric heater unit also comprises: be positioned at heat-generating pipe 101 and cooling fin part 102 left parts support 104, be positioned at the insulation fixed mount 105 and the high temperature wire 108 of heat-generating pipe 101 and cooling fin part 102 right parts; High temperature wire 108 is electrically connected with heat-generating pipe 101.
Electric heater unit also comprises: be installed in thermal fuse-link 106 and temperature limiter 107 in the insulation fixed mount 105, thermal fuse-link 106 and temperature limiter 107 are electrically connected between high temperature wire 108 and heat-generating pipe 101.
As shown in Figure 2, the lateral surface of said cooling fin part 102 is provided with stiffener 103, and stiffener 103 is provided with a plurality of air vents.
The utility model comprises following technical characterictic: the heat sink design of electric heater unit becomes the porous section, and the shape in hole, position distribution all design according to the structure of indoor apparatus of air conditioner and the heat concentrated area of electric heater unit.
The quantity N of said heat radiation through hole 1022 is 1～20.
Like Fig. 4 a, 4b, the equivalent diameter of said heat radiation through hole 1022 is D, and the fin of first fin unit or second fin unit is wide to be L, wherein 0.1＜D/L＜0.7.
The position of heat radiation through hole 1022 too closely can influence heat radiation with heating aluminum pipe distance, so the center of heat radiation through hole 1022 need keep certain distance with the heating aluminum pipe, the center of the through hole 1022 that then dispels the heat with the heating aluminum pipe apart from S1 is: 0.15＜S1/D＜10.
Simultaneously, heat radiation through hole 1022 also needs suitably apart from S2 with fin broadside 1021, thereby makes porous be in the heat concentrated area, reduces concentrating of electric heater unit heat, wherein S2＞0.1D.
For guaranteeing the structural strength of electric heater unit, heat radiation through hole 1022 needs greater than 0.08D apart from S3 with stiffener 103.
Maximum
a of heat radiation through hole 1022 interval S is the width dimensions in the cross section of cooling fin part 102, that is: the size dimension of fin broadside 1021; B is the length dimension in the cross section of cooling fin part 102.
Like Fig. 5 a, 5b, 5c, 5d, can design difform heat radiation through hole on the same fin.The distribution in heat radiation through hole hole can be arranged according to regular array, also can be according to the actual flow situation and the random randomly arrangement of electric heater unit structure of air-flow.The cross section of heat radiation through hole 1022 for example is circle, rectangle, rhombus, hexagon or other polygons.
Go into to flow to the direction of effluenting along electric heater unit gas, the area of heat radiation through hole 1022 increases gradually, and pitch of holes S reduces gradually.
The utility model also proposes a kind of air-conditioner, includes evaporimeter, ventilation unit and above-mentioned electric heater unit; Said electric heater unit is positioned at the side of evaporimeter; Said electric heater unit is arranged in the ventilation unit air intake zone.
The heat radiating fin structure of this electric heater unit has reduced the resistance of fin to air-flow, makes the inner air current flow of electric heater unit more smooth and easy, has increased flow and heat conduction; Make air-flow can in time take away the heat that the PTC element is sent; Help the electrical heating heat radiation, the temperature stabilization when making electric heater unit work has improved the efficient of electric heater unit below curie point; Reduce to heat noise and extraordinary noise, improved the noiseproof feature that heats of air-conditioner.
Experimental result is following:
Air-conditioner is installed the noise experiment data contrast of two kinds of electric heater units
Embodiment:
The embodiment accompanying drawings is following:
Shown in Fig. 4 a, 4b; The fin Section Design of electric heater unit becomes the porous section; Heat radiation through hole 1022 is distributed on the fin of heating aluminum pipe both sides symmetrically; Circular hole and the diamond hole that the length of side is 1.7mm that on each side fin a diameter to be arranged all be 2mm, the aperture is moderate in to keep electrically heated heating effect.Pitch of holes S is 6mm, and between center, hole and the heating aluminum pipe is 4.5mm apart from S1, thereby makes the heat of heating aluminum pipe be able to fully shed through fin.Heat radiation through hole 1022 is 4.6mm with fin broadside 1021 apart from S2, avoids heat to concentrate.Heat radiation through hole 1022 is 4mm with stiffener 103 apart from S3, to guarantee 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 a sudden change is arranged, and wherein the point of the TC in the curve is called curie point.When work, existing PTC element is stabilized in the resistance larger part usually, makes the thermal power of self be difficult to performance.The utility model becomes the porous cross section to PTC electric heater unit heat sink design; Increased air-flow flow and heat are conducted; The heat that in time the PTC element is sent sheds, and makes element when work, and resistance stabilization is in the negative temperature coefficient section of beginning; Temperature stabilization during with assurance work is brought into play the power of element self below curie point.
The heat radiating fin structure of this electric heater unit has reduced the resistance of fin to air-flow, makes the air current flow of PTC element internal more smooth and easy, has increased flow; Make air-flow can in time take away the heat that the PTC element is sent; Help the electrical heating heat radiation, the temperature stabilization during with the work of assurance electric heater unit has improved the efficient of electric heater unit below curie point; Reduce to heat noise and extraordinary noise, improved the noiseproof feature that heats of air-conditioner.
The above embodiment has only expressed several kinds of embodiments of the utility model; It describes comparatively concrete and detailed; But can not therefore be interpreted as the restriction to the utility model claim, the described electric heater unit heat radiating fin structure of the utility model includes but not limited to technical scheme described above.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to the protection domain of the utility model.Therefore, the protection domain of the utility model patent should be as the criterion with accompanying claims.
Claims (16)
1. electric heater unit includes heat-generating pipe and cooling fin part, and the medial surface of said cooling fin part is a joint face, links to each other with the lateral wall of heat-generating pipe; It is characterized in that said cooling fin part is provided with the more than one heat radiation through hole that runs through the cooling fin part two ends.
2. electric heater unit according to claim 1 is characterized in that, said heat radiation through hole is along the centerline direction setting of heat-generating pipe.
3. electric heater unit according to claim 2 is characterized in that said cooling fin part includes fin, and said heat radiation through hole is arranged in fin.
4. electric heater unit according to claim 3 is characterized in that, said cooling fin part includes first fin unit and second fin unit, lays respectively at the both sides of heat-generating pipe; The cross section of said first fin unit and second fin unit is a quadrangle, has the fillet that is connected with the outer side edges in the cross section of heat-generating pipe, and said heat radiation through hole is positioned at tetragonal inside.
5. electric heater unit according to claim 1 is characterized in that, said heat-generating pipe is the heating aluminum pipe.
6. electric heater unit according to claim 4 is characterized in that, also comprises: be positioned at heat-generating pipe and cooling fin part left part support, be positioned at the insulation fixed mount and the high temperature wire of heat-generating pipe and cooling fin part right part; High temperature wire and heat-generating pipe are electrically connected.
7. electric heater unit according to claim 6 is characterized in that, also comprises: be installed in thermal fuse-link and temperature limiter in the insulation fixed mount, thermal fuse-link and temperature limiter are electrically connected between high temperature wire and heat-generating pipe.
8. electric heater unit according to claim 4 is characterized in that the lateral surface of said cooling fin part is provided with stiffener.
9. electric heater unit according to claim 4 is characterized in that, the quantity N of said heat radiation through hole is 1～20.
10. electric heater unit according to claim 4 is characterized in that, the equivalent diameter of said heat radiation through hole is D, and the fin of first fin unit or second fin unit is wide to be L, wherein 0.1＜D/L＜0.7.
11. electric heater unit according to claim 10 is characterized in that, the center of said heat radiation through hole and heat-generating pipe apart from S1 be: 0.15＜S1/D＜10.
12. electric heater unit according to claim 11 is characterized in that, said heat radiation through hole and fin broadside apart from S2＞0.1D.
13. electric heater unit according to claim 12 is characterized in that, said heat radiation through hole and stiffener apart from S3 greater than 0.08D.
14. electric heater unit according to claim 13; It is characterized in that; The maximum of said heat radiation through-hole spacing S
a is the width dimensions in the cross section of cooling fin part, that is: the size dimension of fin broadside; B is the length dimension in the cross section of cooling fin part.
15. electric heater unit according to claim 4 is characterized in that, goes into to flow to the direction of effluenting along electric heater unit gas, the area of heat radiation through hole increases gradually, and pitch of holes S reduces gradually.
16. air-conditioner is characterized in that, includes evaporimeter, ventilation unit and like any one described electric heater unit in the claim 1 to 15; Said electric heater unit is positioned at the side of evaporimeter; Said electric heater unit is arranged in the ventilation unit air intake zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202123835U CN202561975U (en) | 2012-05-11 | 2012-05-11 | Electric heating device and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202123835U CN202561975U (en) | 2012-05-11 | 2012-05-11 | Electric heating device and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202561975U true CN202561975U (en) | 2012-11-28 |
Family
ID=47211626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202123835U Expired - Lifetime CN202561975U (en) | 2012-05-11 | 2012-05-11 | Electric heating device and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202561975U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388891A (en) * | 2012-05-11 | 2013-11-13 | 珠海格力电器股份有限公司 | Electric heating device and air conditioner |
| CN112512140A (en) * | 2020-11-17 | 2021-03-16 | 孝感华工高理电子有限公司 | Method for reducing noise of ptc heating device with pwm controller |
-
2012
- 2012-05-11 CN CN2012202123835U patent/CN202561975U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388891A (en) * | 2012-05-11 | 2013-11-13 | 珠海格力电器股份有限公司 | Electric heating device and air conditioner |
| CN103388891B (en) * | 2012-05-11 | 2016-08-31 | 珠海格力电器股份有限公司 | Electric heating device and air conditioner |
| CN112512140A (en) * | 2020-11-17 | 2021-03-16 | 孝感华工高理电子有限公司 | Method for reducing noise of ptc heating device with pwm controller |
| CN112512140B (en) * | 2020-11-17 | 2023-06-23 | 孝感华工高理电子有限公司 | Method for reducing noise of ptc heating device with pwm controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121128 Effective date of abandoning: 20160831 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |