CN2373719Y - Electric heating warmer - Google Patents
Electric heating warmer Download PDFInfo
- Publication number
- CN2373719Y CN2373719Y CN 99206671 CN99206671U CN2373719Y CN 2373719 Y CN2373719 Y CN 2373719Y CN 99206671 CN99206671 CN 99206671 CN 99206671 U CN99206671 U CN 99206671U CN 2373719 Y CN2373719 Y CN 2373719Y
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- CN
- China
- Prior art keywords
- heat
- space
- heat release
- utility
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- 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 - Fee Related
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- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
- Central Heating Systems (AREA)
Abstract
The utility model discloses an electrothermal heater. The utility model adopts the structure that the interior of a machine frame is divided into a heat release space and a heat absorption space by a heat insulating board, and a thermotube is installed on the heat insulating board; heat dispersion holes are arranged on one side wall of the heat release space; corresponding to the other side of the side wall, a fan is arranged in the heat release space; heat media are arranged in the heat absorption space, the heat release section of the thermotube is positioned in the heat release space, fins are installed on the thermotube, and a heat absorption section is positioned in the heat absorption space. The utility model overcomes the defect of poor heat transfer performance of a former heater; the utility model has the advantages of compact structure, safe use, long service life, etc.
Description
The utility model relates to a kind of electric heating device.
The electric heating device is actually a kind of heat exchanger, is a kind ofly to convert electric energy to heat energy and it is sent to airborne a kind of equipment rapidly.In theory, following formula: Q=F is followed in heat exchange
*K
*Δ t
mWherein, Q is a heat output, and F is a heat transfer area, and K is a heat transfer coefficient, Δ t
mBe the logarithmic mean temperature difference (LMTD) between the Cooling and Heat Source.According to this formula, electric heating device in the market all exists deficiency, and Ru Youting is though it has bigger F and certain Δ t
m, but it is mainly by free convection, and K is very little; Quartz tube type electric heater and for example, its Δ t
mThough higher, rely on heat radiation to conduct heat, but heat transfer area is little, so still can not obtain effect preferably.The PTC warmer is same because heat transfer area is little for another example, though improved K owing to installed fan additional, also fails to reach desirable effect.Electric heating device heat exchanger effectiveness height is the target that designers pursue, yet wants to increase simultaneously in the very little space of electric heater F, K, Δ t up to now
mDo not solve well yet.
The electric heating device that provides a kind of heat exchanger effectiveness high is provided the purpose of this utility model.
The purpose of this utility model is achieved in that this electric heating device is made up of frame, heat pipe, fan, hot media.Place heat pipe in the frame, be divided into heat release and two spaces of heat absorption by heat-insulating shield in the frame, on the sidewall in heat release space louvre is arranged, in the opposite side heat release space with respect to this sidewall fan is set, heat absorption is placed hot media in the space, be fixed in the heat release space of heat pipe heat release section between fan and louvre on the heat-insulating shield, endotherm section is positioned at the heat absorption space.Also fin can be set on the radiating segment of heat pipe, with further increase area of dissipation.
Owing to require the volume of electric heater little now, therefore it is very difficult to increase heat transfer area, and the heat pipe that uses heat pipe or install fin additional can increase considerably heat transfer area neatly in identical space, again because the heat pipe for thermal conductivity performance is good, almost the hot media temperature is very nearly the same on every side with endotherm section for the temperature of heat release section, so Δ t
mAlso be able to great raising.In addition by the forced convertion of fan, having guaranteed has a higher heat transfer coefficient between the heat release section of heat pipe and the air.F of the present utility model like this, K, Δ t
mBe improved simultaneously.
The utility model compares with existing technology, and it has possessed big heat transfer area F, high Coefficient K and high logarithmic mean temperature difference (LMTD) Δ t
mThese three conditions, so heat-transfer effect is splendid, is a kind of desirable electric heating device; Advantages such as in addition, the utility model not only heat transfer property is superior, and owing to adopted hot pipe technique, makes the apparatus structure compactness, and volume is little, and is in light weight, not water funk, safe and reliable, and the life-span is long.
By the following examples and in conjunction with the accompanying drawings the utility model is described further.
Fig. 1 is the example structure schematic diagram.
Among Fig. 1,1 is heat pipe, and 2 is fan, and 3 is frame, and 4 is hot media, the 5th, and heat-insulating shield.Heat-insulating shield 5 is installed in the central authorities in the frame 3, and sheaf space is heat release space 6 on the heat-insulating shield 5, and lower layer space is heat absorption space 8, and heat pipe 1 is vertically fixed on the heat-insulating shield 5, and the heat pipe section in heat release space 6 is the heat release section of heat pipe, and fin 7 is arranged on the heat pipe heat release section.Heat pipe section in heat absorption space 8 is the endotherm section of heat pipe, is hot media 4 around the endotherm section of heat pipe, and hot media 4 can be that conduction oil also can be the PTC heating wire that is wrapped on the heat pipe.Fan 2 is arranged in a side of heat pipes 1 in the heat release space 6, fan 2 have louvre 9 on the right chassis wall.After electric current is connected, endotherm section by hot media 4 heat pipes is heated, heat promptly is delivered to the heat release section of heat pipe, the cold wind and heat pipe heat radiation section fin 7 appearances that have high flow rate when fan 2 rotates are carried out heat exchange, the rapid rising of temperature arranged to the interior space by louvre 9 after cold wind absorbed heat, and indoor temperature is risen.So far, be converted into heat energy, and the whole conversion course of conveying that heat energy is sent to the interior space is finished by electric energy.
Claims (2)
1, a kind of electric heating device is made up of frame (3), heat pipe (1), fan (2), hot media (4), it is characterized in that:
Place heat pipe (1) in the frame (3), be divided into heat release and heat absorption two spaces (6) (8) by heat-insulating shield (5) in the frame (3), on the sidewall in heat release space (6) louvre (9) is arranged, in the opposite side heat release space with respect to this sidewall fan (2) is set, place hot media (4) in the heat absorption space (8), the heat release section that is fixed on the heat pipe (1) on the heat-insulating shield (5) is positioned at the heat release space (6) between fan (2) and the louvre (9), and endotherm section is positioned at heat absorption space (8).
2, electric heating device according to claim 1 is characterized in that:
Fin (7) also can be set on the heat release section of heat pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99206671 CN2373719Y (en) | 1999-04-08 | 1999-04-08 | Electric heating warmer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99206671 CN2373719Y (en) | 1999-04-08 | 1999-04-08 | Electric heating warmer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2373719Y true CN2373719Y (en) | 2000-04-12 |
Family
ID=34000881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99206671 Expired - Fee Related CN2373719Y (en) | 1999-04-08 | 1999-04-08 | Electric heating warmer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2373719Y (en) |
-
1999
- 1999-04-08 CN CN 99206671 patent/CN2373719Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |