CN107166563B - Window type air conditioner and electric control heat dissipation method thereof - Google Patents
Window type air conditioner and electric control heat dissipation method thereof Download PDFInfo
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- CN107166563B CN107166563B CN201710397357.1A CN201710397357A CN107166563B CN 107166563 B CN107166563 B CN 107166563B CN 201710397357 A CN201710397357 A CN 201710397357A CN 107166563 B CN107166563 B CN 107166563B
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- 230000017525 heat dissipation Effects 0.000 title claims description 17
- 238000000034 method Methods 0.000 title claims description 6
- 238000005192 partition Methods 0.000 claims abstract description 18
- 230000000191 radiation effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 12
- 239000000463 material Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/14—Heat exchangers specially adapted for separate outdoor units
- F24F1/16—Arrangement or mounting thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/20—Electric components for separate outdoor units
- F24F1/24—Cooling of electric components
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention provides a window type air conditioner, which comprises a shell, wherein the shell is separated into an indoor side and an outdoor side through a middle partition plate, the outdoor side comprises a fan, an outdoor heat exchanger, an electric control box and a radiator which are positioned in the shell, the radiator is positioned on the electric control box, the shell on the outdoor side comprises a left side, a right side, a top surface and a bottom surface, the left side and the right side are respectively provided with an air inlet, and the fan sucks air through the air inlet and blows the air to the outdoor heat exchanger; the radiator is located between the middle partition board and the fan, located on the upper portion of the fan air duct and located above the axis of the fan, and exposed out of the electric control box. The air quantity of the position where the radiator is located is the largest, and the influence on the air inlet at the two sides is the smallest, so that the heat radiation effect is improved, and the energy efficiency value of the whole machine is not reduced.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly relates to a window type air conditioner and an electric control heat dissipation method thereof.
Background
The electronic control box of the existing variable frequency air conditioner is internally provided with a power module with larger heat productivity, and a radiator is generally arranged on the electronic control box in order to timely radiate the heat of the electronic control box and avoid the influence of the heat on the normal work of electronic devices in the electronic control box. The existing radiator is made of metal sectional materials, a power module of the electric control box is assembled on the metal sectional materials, heat exchange is realized by utilizing the temperature difference between the metal sectional materials and air, so that the temperature of the power module is reduced, heat dissipation and cooling are realized, and the larger the contact area between the metal sectional materials and the air is, the better the heat dissipation effect is.
The window type air conditioner is a typical integrated variable frequency air conditioner due to small volume and compact structure, the installation and heat dissipation design of the electric control box is obviously limited by the structural form of the variable frequency window air conditioner, and the heat dissipation mode and the heat dissipation position of the electric control box greatly affect the heat dissipation effect. The frequency conversion controller of the common window type air conditioner is arranged at the left (right) side or the position of the upper part of the left (right) side of the inner space of the outdoor side, and the convenience of installation and production is emphasized, so that the frequency conversion controller is not beneficial to heat dissipation design and has poor heat dissipation effect; the heat radiator is generally designed to be large, the direction of the fins of the heat radiator is not required, and typical placement schematic diagrams are shown in figures 1a, b, c and d.
Fig. 1a and 1b show that the electronic control box is arranged at the upper position of the left side of the outdoor side, the electronic control box is horizontally arranged, and the radiator is close to the upper part of the left air inlet, so that the effective radiating airflow flow rate is less; fig. 1c and fig. 1d show that the electric control box is placed on the outdoor side and placed on the middle partition board, the electric control box is placed vertically, the radiator is close to the fan, the air inlet amount of the radiator is increased but still weak compared with that of the radiator, and meanwhile, the electric control box is located near the right air inlet, so that the air inlet amount on the right side is influenced, the air inlet amount on the right side is reduced, and the energy efficiency value of the whole variable frequency window machine is reduced.
Disclosure of Invention
The invention aims to provide a window type air conditioner, which solves the technical problems that the air circulation at the installation position of an electric control box of the window type air conditioner is weak, the temperature difference between air and a radiator is small, and the radiating effect is poor.
In order to solve the technical problems, the invention adopts the following technical scheme:
a window type air conditioner comprises a shell, wherein the shell is separated into an indoor side and an outdoor side through a middle partition plate, the outdoor side comprises a fan, an outdoor heat exchanger, an electric control box and a radiator, the fan, the outdoor heat exchanger, the electric control box and the radiator are positioned in the shell, the radiator is positioned on the electric control box, the shell on the outdoor side comprises a left side, a right side, a top surface and a bottom surface, air inlets are respectively formed in the left side and the right side, and the fan sucks air through the air inlets and blows the air to the outdoor heat exchanger; the fan is characterized in that the radiator is positioned between the middle partition board and the fan, the radiator is positioned on the upper portion of the fan air duct and above the axis of the fan, and the radiator is exposed out of the electric control box.
According to the window type air conditioner, the direction of the fins of the radiator is parallel to the air outlet direction of the fan.
According to the window type air conditioner, air inlet gaps are reserved among the electric control box, the radiator and the middle partition plate.
The window type air conditioner is characterized in that the top surface is provided with an air inlet hole opposite to the air inlet gap.
According to the window type air conditioner, the electric control box comprises a groove for mounting the radiator, the groove comprises a groove bottom and a groove wall, and a notch is formed in the groove wall opposite to the fan and the middle partition plate.
According to the window type air conditioner, the radiator is in sealing fit with the groove bottom of the electric control box.
The window type air conditioner comprises a controller, wherein a temperature sensor for detecting the temperature of the power module is arranged in the electric control box, a temperature signal detected by the temperature sensor is sent to the controller, and the controller is used for controlling the rotating speed of the fan and/or the operating frequency of a frequency converter in the electric control box according to the temperature signal.
The invention also provides an electric control heat dissipation method based on the window type air conditioner, the controller judges whether the temperature signal exceeds a set threshold value, and if so, the rotating speed of the fan is controlled to be increased and/or the operating frequency of a frequency converter in the electric control box is controlled to be reduced.
Compared with the prior art, the invention has the advantages and positive effects that: the radiator of the window type air conditioner is positioned between the middle partition plate and the fan, and the radiator is positioned at the upper part of the fan air duct and above the axis of the fan. The air quantity of the position where the radiator is located is the largest, and the influence on the air inlet at the two sides is the smallest, so that the heat radiation effect is improved, and the energy efficiency value of the whole machine is not reduced. The invention directly introduces external cooler air, increases the temperature difference between the radiator and the air, strengthens the air flow, further improves the radiating effect and further improves the reliability of the controller.
Other features and advantages of the present invention will become more apparent from the detailed description of the embodiments of the present invention when taken in conjunction with the accompanying drawings.
Drawings
Fig. 1a is a schematic front view of an electric control box and a heat sink located at an upper portion of a left side of an outdoor side in the background art.
Fig. 1b is a schematic side view of the electric control box and the heat sink in the prior art, which are located at the upper portion of the left side of the outdoor side.
Fig. 1c is a schematic front view of the electric control box and the heat sink on the right side of the partition board in the outdoor side in the background art.
Fig. 1d is a schematic side view of the electrical control box and the heat sink on the right side of the partition board in the outdoor side in the background art.
Fig. 2 is a schematic view of the electronic control box and the heat sink located outside the room according to the embodiment of the present invention.
Fig. 3 is a side view of fig. 2.
FIG. 4 is a bottom view of a heat sink and a fan according to an embodiment of the present invention.
Fig. 5 is a sectional view showing an assembled relationship between the heat sink and the electronic control box according to the embodiment of the present invention.
Fig. 6 is a schematic diagram of a heat sink and an electrical control box according to an embodiment of the invention.
FIG. 7 is a schematic view of the direction of airflow in the heat sink according to the embodiment of the invention.
The reference numbers in the figures are:
1. a housing; 11. The left side; 12. right side; 13. a top surface; 14. a bottom surface; 16. a middle partition plate;
2. a fan; 3. an electronic control box; 31. a trench wall; 4. a heat sink; 5. an air inlet; 6. an air outlet; 7. an air inlet gap; 8. an air inlet hole; 9. and (4) a notch.
Detailed Description
As shown in fig. 2 to 7, the present embodiment provides a window type air conditioner including a casing 1, and the casing 1 is partitioned into an outdoor side and an indoor side by a middle partition 16. The outdoor side comprises a fan 2, a compressor (not shown in the figure), an outdoor heat exchanger (not shown in the figure), an electric control box 3 and a radiator 4, wherein the fan 2, the compressor (not shown in the figure), the outdoor heat exchanger (not shown in the figure), the electric control box 3 and the radiator 4 are positioned in the electric control box 3 and used for radiating electronic devices in the electric control box 3. The outdoor side shell 1 comprises a left side 11, a right side 12, a top surface 13 and a bottom surface 14, wherein the left side 11 and the right side 12 are respectively provided with an air inlet 5, and when the fan 2 rotates, the fan 2 sucks air through the air inlet 5, blows the air to the outdoor heat exchanger, and blows the air out of the shell 1 after exchanging heat with the outdoor heat exchanger.
The radiator 4 is located between the middle partition plate 16 and the fan 2, the radiator 4 is located on the upper portion of the air duct of the fan 2 and located above the axis of the fan 2, and radiating fins of the radiator 4 are exposed out of the electric control box 3, so that ventilation and heat dissipation are facilitated. The air duct is an air flow channel from the air inlet 5 to the air outlet 6 in the shell 1, and the axis of the fan 2 is an extension line of a rotating shaft of the fan 2. When the fan 2 rotates, air flow outside the shell 1 enters the shell 1 through the two air inlets 5, then passes through the radiator 4, exchanges heat with the radiator 4, takes away heat of the radiator 4, and then blows out from the air outlet 6 through the outdoor heat exchanger. Can obtain through emulation and practical experiment verification, it is the biggest just to be located the top position amount of wind of 2 axes of fan in the upper portion in fan 2 wind channels, and radiator 4 and automatically controlled box 3 are located here and can promote the radiating effect, and simultaneously, radiator 4 and automatically controlled box 3 are located here, can reduce sheltering from to air intake 6, and the influence is minimum to the air inlet, can not reduce the ability virtual value of complete machine. The air that radiator 4 department has been strengthened to this embodiment flows, has promoted the radiating effect, introduces the direct and 4 contacts with radiator of the outside colder air of casing 1 simultaneously, has increased the difference in temperature of radiator 4 with the air, has further promoted the radiating effect.
In order to facilitate the air flow at the heat sink 4, as shown in fig. 3, the fin direction of the heat sink 4 is parallel to the air outlet direction of the fan 2. Therefore, the air flow generated by the rotation of the fan 2 can smoothly pass through the fins between the radiators 4, the air flow at the radiators 4 is enhanced, the air can rapidly take away the heat of the radiators 4, and the heat dissipation effect is improved.
As shown in fig. 3, in order to make the air flow entering the housing 1 from the air inlet 5 pass through the heat sink 4 as much as possible, an air inlet gap 7 is reserved between the electronic control box 3, the heat sink 4 and the middle partition 16. The part of the air flow entering the housing 1 from the air inlet 5 enters the air inlet gap 7 and then passes through the radiator 4, increasing the air flow passing through the radiator 4.
To further increase the air flow through the radiator 4, as shown in fig. 3, air inlet holes 8 are provided in the top surface 13 opposite to the air inlet gap 7. Under the effect of fan 2, the outside air of casing 1 can also get into air inlet clearance 7 through fresh air inlet 8, then passes through radiator 4 again, has further increased the air mass flow through radiator 4, has promoted the radiating effect.
As shown in fig. 5 and 6, the electronic control box 3 of this embodiment includes a box body, electronic devices such as a power module are installed in the box body, a groove for installing a heat sink is opened on the bottom surface of the box body, the heat sink 4 is installed in the groove, the groove includes a groove bottom and a groove wall 31, the groove bottom has an opening, the heat sink 4 contacts with the electronic devices such as the power module in the box body through the opening, and in order to prevent the groove wall 31 from blocking the airflow passing through the heat sink 4, a notch is opened on the groove wall 31 opposite to the fan 2 and the middle. Air outside the shell 1 enters an air inlet gap 7 in the shell 1 through an air inlet 5 and an air inlet hole 8, then reaches the fins of the radiator 4 through a gap 9, contacts with the radiator 4 and takes away heat of the radiator 4. The notches 9 prevent the slot walls 31 from blocking the flow of air in the heat sink 4.
Because the outdoor side directly exchanges air with the external environment, in order to avoid water vapor in the air from influencing the normal operation of electronic devices in the electric control box, the heat radiator 4 is in sealing fit with the bottom of the groove of the electric control box 3, and the sealing and moisture prevention of the electronic devices in the electric control box can be realized.
The window type air conditioner comprises a controller, wherein a temperature sensor used for detecting the temperature of the power module is arranged in the electric control box, a temperature signal detected by the temperature sensor is sent to the controller, and the controller is used for controlling the rotating speed of the fan and/or the operating frequency of a frequency converter in the electric control box according to the temperature signal.
The controller is used for controlling the rotating speed of the fan to be increased when the temperature signal exceeds a set threshold value, so that the air flow passing through the radiator 4 is increased, the radiating effect is improved, the working temperature of electronic devices such as a power module in the electric control box is reduced, and the reliable work of the electronic devices is realized.
And/or the controller is used for controlling the running frequency of the frequency converter in the electric control box to be reduced when the temperature signal exceeds a set threshold value, so that the heating power consumption of electronic devices such as a power module in the electric control box 3 is reduced, the working temperature of the electronic devices such as the power module is reduced, and the reliable work of the electronic devices is realized.
Based on the design of the window type air conditioner, the embodiment also provides an electric control heat dissipation method, wherein the controller judges whether the temperature signal exceeds a set threshold value, and if so, the rotating speed of the fan is controlled to be increased and/or the operating frequency of a frequency converter in the electric control box is controlled to be reduced.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. A window type air conditioner comprises a shell, wherein the shell is separated into an indoor side and an outdoor side through a middle partition plate, the outdoor side comprises a fan, an outdoor heat exchanger, an electric control box and a radiator, the fan, the outdoor heat exchanger, the electric control box and the radiator are positioned in the shell, the radiator is positioned on the electric control box, the shell on the outdoor side comprises a left side, a right side, a top surface and a bottom surface, air inlets are respectively formed in the left side and the right side, and the fan sucks air through the air inlets and blows the air to the outdoor heat exchanger; the fan air duct heat dissipation device is characterized in that the radiator is located between the middle partition board and the fan, the radiator is located on the upper portion of the fan air duct and located above the axis of the fan, the radiator is exposed out of the electronic control box, and air inlet gaps are reserved among the electronic control box, the radiator and the middle partition board; the top surface is provided with an air inlet hole opposite to the air inlet gap; the electric control box comprises a groove for installing the radiator, the groove comprises a groove bottom and a groove wall, a notch is formed in the groove wall opposite to the fan and the middle partition plate, and the radiator does not protrude out of the groove.
2. The window type air conditioner as recited in claim 1, wherein the direction of the fins of said heat sink is parallel to the direction of the air outlet of said fan.
3. The window air conditioner as recited in claim 1, wherein said grooves and walls sealingly engage the heat sink.
4. The window air conditioner as recited in any one of claims 1-3, wherein the window air conditioner comprises a controller, a temperature sensor for detecting the temperature of the power module is installed in the electrical control box, a temperature signal detected by the temperature sensor is sent to the controller, and the controller is used for controlling the rotating speed of the fan and/or the operating frequency of a frequency converter in the electrical control box according to the temperature signal.
5. An electric control heat dissipation method for a window type air conditioner as claimed in claim 4, wherein the controller determines whether the temperature signal exceeds a set threshold, and if so, controls the rotation speed of the fan to increase and/or controls the operation frequency of a frequency converter in the electric control box to decrease.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710397357.1A CN107166563B (en) | 2017-05-31 | 2017-05-31 | Window type air conditioner and electric control heat dissipation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710397357.1A CN107166563B (en) | 2017-05-31 | 2017-05-31 | Window type air conditioner and electric control heat dissipation method thereof |
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| Publication Number | Publication Date |
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| CN107166563A CN107166563A (en) | 2017-09-15 |
| CN107166563B true CN107166563B (en) | 2020-08-14 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108375130B (en) * | 2018-01-29 | 2020-06-23 | 南京天加环境科技有限公司 | Heat dissipation device of variable frequency air conditioner driving module and control method thereof |
| CN111878913B (en) * | 2020-07-02 | 2022-07-19 | 宁波奥克斯电气股份有限公司 | Frequency conversion control method and device, air conditioner and storage medium |
| CN112074180B (en) * | 2020-10-10 | 2024-03-19 | 珠海格力电器股份有限公司 | Adjustable diversion control system, control method thereof and water heater |
| CN112236017B (en) * | 2020-11-04 | 2024-07-16 | 珠海格力电器股份有限公司 | Heat dissipation structure of electric box, refrigerating unit and control method thereof |
| CN115183337B (en) * | 2022-06-23 | 2023-11-24 | 青岛海尔空调电子有限公司 | Method and device for radiating frequency conversion module of air conditioner and air conditioner |
| CN115264632A (en) * | 2022-07-29 | 2022-11-01 | 青岛海尔空调器有限总公司 | Window air conditioner and temperature control method, device, equipment and medium for control panel of window air conditioner |
| WO2024045297A1 (en) * | 2022-08-31 | 2024-03-07 | 广东美的制冷设备有限公司 | Unitary air conditioner |
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| CN103363597A (en) * | 2013-07-26 | 2013-10-23 | 广东科龙空调器有限公司 | Air conditioner outdoor machine |
| CN204438348U (en) * | 2014-12-05 | 2015-07-01 | 珠海格力电器股份有限公司 | Window type air conditioner electrical box mounting structure and window type air conditioner |
| CN105101760A (en) * | 2015-09-30 | 2015-11-25 | 深圳市奥兰特机械有限公司 | Temperature control equipment electric cabinet with external heat radiating device |
| JP2016161204A (en) * | 2015-02-27 | 2016-09-05 | ダイキン工業株式会社 | Heat source unit of refrigeration device |
| CN106247473A (en) * | 2016-09-22 | 2016-12-21 | 珠海格力电器股份有限公司 | Window type air conditioner |
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2017
- 2017-05-31 CN CN201710397357.1A patent/CN107166563B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363597A (en) * | 2013-07-26 | 2013-10-23 | 广东科龙空调器有限公司 | Air conditioner outdoor machine |
| CN204438348U (en) * | 2014-12-05 | 2015-07-01 | 珠海格力电器股份有限公司 | Window type air conditioner electrical box mounting structure and window type air conditioner |
| JP2016161204A (en) * | 2015-02-27 | 2016-09-05 | ダイキン工業株式会社 | Heat source unit of refrigeration device |
| CN105101760A (en) * | 2015-09-30 | 2015-11-25 | 深圳市奥兰特机械有限公司 | Temperature control equipment electric cabinet with external heat radiating device |
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