CN100344039C - Apparatus of preventing overheat of power source part for air conditioner - Google Patents
Apparatus of preventing overheat of power source part for air conditioner Download PDFInfo
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- CN100344039C CN100344039C CNB021170266A CN02117026A CN100344039C CN 100344039 C CN100344039 C CN 100344039C CN B021170266 A CNB021170266 A CN B021170266A CN 02117026 A CN02117026 A CN 02117026A CN 100344039 C CN100344039 C CN 100344039C
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- temperature
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- controller
- power supply
- air conditioner
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Abstract
The present invention relates to a device for preventing the overheat of a power supply component for an air conditioner, which belongs to the technical field of household electric appliances. The present invention which solves the problem of the damage of a power supply component caused by overheat in an air conditioner has the technical scheme that a narrow groove (33) is arranged on a heat radiating plate (32), and a temperature sensor (40) is arranged in the groove (33) so as to detect the temperature of a radiator (30); the sensor transmits signals of detected temperature to a controller (50), and the detected temperature is compared with preset temperature; if the detected temperature exceeds the preset temperature, the controller (50) inhibits the operation of a compressor, namely that the speed of the compressor is stopped or reduced. The sensor (40) is arranged in the narrow groove (33) of the radiator (30), and a base plate in the controller (50) is used for insulating the sensor (40) from the outside world, so the temperature of the radiator can be detected more accurately. Before the temperature is high enough to damage a power supply component of the controller (50), the speed of the compressor is stopped or reduced so that heat generated on the power supply component is reduced, and the power supply component is prevented from damaging.
Description
Technical field
Title of the present invention is the device that prevents overheat of power source part for air conditioner, belongs to household electrical appliance technical field.
Background technology
Fig. 1 is the air-conditioner outdoor unit pie graph that utilizes this fabrication techniques, and as shown in the figure, the air conditioner shell is made of base plate 1, protecgulum 2, bonnet 3, top cover 4.Air conditioner inside has as lower member:
Cold-producing medium is converted to the compressor 6 of high temperature refrigerant, and high-temperature high-pressure refrigerant converts the heat exchanger 7 of low temperature refrigerant to, sucks extraneous air carries out heat exchange 7 li of heat exchangers wind feeding blades 8.Air on protecgulum 2, has lattice door 2a, so can circulate with the outside through wind feeding blades.Utilize motor 9 to drive above-mentioned wind feeding blades rotation, motor 9 devices are on base plate 1, and dividing plate 11 is arranged on the base plate, improves the efficient of wind feeding blades circulation of air, and prevent the noise that produces on parts such as compressor 6.Dividing plate 11 vertical means separate heat exchanger 7 and compressor 6 on base plate 1.Device control panel 12 is installed the power supply unit of Driven Compressor again on control panel on dividing plate 11.
On control panel 12, be provided with first substrate and second substrate 13,13 ', also have the parts that do not draw on some figure, omitted for easy.For the heat that sheds and on first substrate, produce, device radiation device 15 on dividing plate 11, radiator 15 usefulness metal materials are made, and constitute by heating panel 16 with at the radiator shutter 17 of one side.Device has been gone up in the another side of above-mentioned radiator 15 (reverse side that radiator shutter 17 is promptly arranged) first substrate is because first substrate abuts against with heating panel 16, so can correctly monitor the heat that produces on the power supply unit that is provided with on first substrate.But above-mentioned air-conditioner outdoor unit has following shortcoming:
Air conditioner has in the past used OLP (OverLoadProduct) chip in order to prevent the superheating phenomenon on the first power source substrate parts.In a single day the OLP chip detects overheat of power source part, just interrupts the power supply of power supply unit.But in a single day the OLP chip interrupts, and must wait until after the heating panel temperature is cooled off fully and just can power again.Adopt such technology, in a single day power supply unit loses power supply, and compressor can not be started working before OLP chip reinstatement attitude.So the heat exchange ring of air conditioner can not form before the OLP chip restores to the original state attitude fully, air conditioner can not be worked.A side of first substrate 13 abuts against with heating panel 16, if heating panel 16 is overheated, can burn out power supply unit.
Summary of the invention
The objective of the invention is to solve problems more discussed above.For allowing the more satisfactory work of air conditioner, and provide the technology that prevents overheat of power source part.Prevent to burn some power supply units that snugly fit on the control panel 12 on the other hand.
According to feature of the present invention, the present invention is made of the following parts:
Radiator, substrate and controller, described radiator is made of heating panel and the fin that is arranged on heating panel one side, the opposite side of heating panel abuts against with a side of first substrate of controller, between the described heating panel and first substrate, be provided with temperature sensor, be used to monitor the heat that on the power source substrate parts, produces, according to the temperature signal of sensor monitors, the work of controller control power supply unit.
On the side near first substrate of heating panel, open a narrow groove, unit temp transducer in this groove.
Above-mentioned narrow groove reaches a terminal of heating panel at least.
When detected temperature on the transducer surpassed design temperature, controller was just controlled power supply unit, stops or reducing the speed of compressor; When being lower than design temperature, then start or quicken the speed of compressor.
The technology of utilizing the present invention to develop, the work according to the temperature signal of heating panel control power supply unit can allow power supply unit work more satisfactorily, prevents to burn out power supply unit.
Use the present invention's----and prevent that the overheat of power source part for air conditioner technology from can obtain the following effect that gets:
At first, temperature sensing 40 device and is sealed by substrate in the narrow groove of heating panel 32 33, so can more correctly detect the temperature of the radiator 30 of coming from substrate 22,24 conduction.Also have, detected temperature compares with the temperature that configures on controller, regulates the work of compressor.In a word can be than very fast and more correctly control compressor, thus the reliability of air conditioner function can be improved.By the temperature of monitoring radiator, regulate the work of compressor, prevent that the power supply unit that is provided with from being burnt out because of overheated because of heating panel on substrate.
Description of drawings
Fig. 1: the air-conditioner outdoor unit pie graph that utilizes this fabrication techniques;
Fig. 2: use the example that the present invention prevents the overheat of power source part for air conditioner technology;
Fig. 3: the schematic partial sectional view of top example (Fig. 2).
Main symbol description:
20: 22: the first substrates of control panel
32: heating panel 33: narrow groove
34: fixing hole 35: radiator shutter
40: temperature sensor 42: lead-in wire
45: hold-down screw 50: controller
Embodiment
Be exactly to use an example of the present invention below, it has adopted the technology that prevents overheat of power source part of the present invention's exploitation.
Shown in Figure 2 is an example that prevents the overheat of power source part for air conditioner technology, and Fig. 3 is its schematic partial sectional view.Control panel 20 devices are on dividing plate 11, and first substrate and second substrate are arranged on the control panel 20, and ( substrate 22,24 can be made one certainly, and then is installed on the dividing plate 11.Most importantly the various power supply units of device wherein control the power of compressor parts that are provided with on the off-premises station on first substrate 22 and second substrate 24.First substrate 22 is positioned at an end of control panel 20 in the present embodiment, is fixed on a side of radiator 30.The too much heat that sheds and produce on first substrate just must have radiator 30, and it is made of heating panel 32 and radiator shutter 35.Heating panel be shaped as rectangle, radiator shutter 35 is arranged in the middle of the gas channel of off-premises station inside, therefore can carry out heat exchange with air-flow.Most radiator shutters are set together across certain distance simultaneously, can obtain maximum area of dissipation.Open a narrow groove 33 on the another side of radiator 30, the degree of depth of this narrow groove can satisfy in its inside not to be disturbed the transducer 40 of setting and the first above-mentioned substrate mutually.The length of narrow groove can be extended to the two ends (can be extended to a wherein end at least) of heating panel 32, this is the lead-in wire 42 for the ease of sensor installation, can certainly dig out a circular hole on heating panel 32 according to designing requirement, lead-in wire passes this circular hole and draws then.The symbol of seeing on the figure 34 is exactly that above-mentioned circular hole.33 li of above-mentioned narrow grooves with unit temp transducer 40, the temperature of temperature sensor 40 monitoring radiators 30, transducer 40 has a lead-in wire 42, this lead-in wire 42 is used to transmit the temperature signal that monitors.Lead-in wire 42 is connected on first substrate 22 or second substrate 24, and the symbol of seeing on the figure 45 is a screw, and it and above-mentioned circular hole 34 with screw thread are fixed on 33 li of narrow grooves to transducer 40 together.
The lead-in wire of the sensor is connected to controller 50, the work of controller control air conditioner, it includes the various power supply units that some devices are controlled on first substrate 22 and second substrate 24, but on figure for avoiding complexity, first substrate and second substrate are regarded as a controller 50.The temperature signal that controller 50 monitors according to transducer 40 is controlled the power supply unit on first substrate and second substrate 24.Certainly controller 50 also has the function of some other control air conditioners except the function of mentioning above.
Detected temperature signal is used to control power supply unit on temperature sensor 40, in case surpass design temperature in temperature sensor 40 detected temperature, the work of compressor will be suppressed.The mode that suppresses compressor operating: turn off compressor, perhaps reduce the speed of compressor.After compressor quits work, do not wait until heating panel 32 temperature cool to room temperature under the effect of controller, as long as temperature is reduced to design temperature, compressor is just started working.And be elevated to when being unlikely to burn out the critical temperature of power supply unit in temperature, controller 50 just allows compressor quit work, and just allows compressor start working when temperature drops to design temperature again.Here the design temperature of mentioning is reliable data by experiment.For compressor can normally move, under the control of controller 50, the parts of first substrate and second substrate are all brought into play function separately, and first substrate 22 and the second power source substrate parts begin heating then, and this heat passes in the ambient air and goes.The heat that produces on first substrate at first passes to the heating panel 32 that abuts against with first substrate, passes in the ambient air therefrom again.40 pairs of heating panels of temperature sensor 32 of 33 li devices of narrow groove of violating at heating panel carry out temperature monitoring, transducer 40 detected temperature signals 42 are sent to controller 50 by going between, controller compares temperature and the design temperature that sends from transducer, if the temperature of radiator 30 surpasses design temperature, controller 50 just gives an order to first substrate 22 and second substrate, 24 power supply units, suppress the work of compressor, as stop the speed of compressor or reduction compressor.Design temperature is the critical temperature that can not cause power supply unit to burn out.The accident that power supply unit is burnt out in case above the gauge temperature, will take place in the temperature of radiator 30.It is overheated so just to require can not produce on above-mentioned operation power of compressor parts, and perhaps the heat of Chan Shenging loses soon, thereby reaches the purpose that reduces the heating panel temperature.At this moment the temperature signal of the radiator 30 that monitors on the transducer 40 can send controller 50 to.
Under the situation that compressor stops, transducer continues radiator is carried out temperature monitoring, if the temperature of radiator is lower than design temperature, controller just allows compressor bring into operation again, forms the heat exchange ring.Transducer 40 is at 33 li monitor temperatures of narrow groove of radiator 30, because transducer 40 is isolated from the outside by first substrate 22 33 li of grooves, so be not subjected to externalities, can detect the temperature of the radiator 30 of coming from 22 conduction of first substrate, and relatively more correct.
Technology of the present invention is not limited to be applied on the above-mentioned example, and its scope and content are determined by claim.So other experts that are engaged in the affiliated technology industry of the present invention also can be to improving with the other parts of example.
Claims (4)
1. device that prevents overheat of power source part for air conditioner, comprise radiator, substrate and controller, described radiator is made of heating panel and the fin that is arranged on heating panel one side, the opposite side of heating panel abuts against with a side of first substrate of controller, it is characterized in that: between the described heating panel and first substrate, be provided with temperature sensor, be used to monitor the heat that on the power source substrate parts, produces, according to the temperature signal of sensor monitors, the work of controller control power supply unit.
2. according to the described device that prevents overheat of power source part for air conditioner of claim 1, it is characterized in that: on the side near first substrate of heating panel, open a narrow groove, unit temp transducer in this groove.
3. according to the described device that prevents overheat of power source part for air conditioner of claim 2, it is characterized in that: narrow groove reaches a terminal of heating panel at least.
4. according to each the described device that prevents overheat of power source part for air conditioner in the claim 1～3, it is characterized in that: detected temperature surpasses design temperature on the transducer, and controller is just controlled power supply unit, stops or reducing the speed of compressor; Be lower than design temperature, then start or quicken the speed of compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021170266A CN100344039C (en) | 2002-04-29 | 2002-04-29 | Apparatus of preventing overheat of power source part for air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021170266A CN100344039C (en) | 2002-04-29 | 2002-04-29 | Apparatus of preventing overheat of power source part for air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1455485A CN1455485A (en) | 2003-11-12 |
| CN100344039C true CN100344039C (en) | 2007-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021170266A Expired - Fee Related CN100344039C (en) | 2002-04-29 | 2002-04-29 | Apparatus of preventing overheat of power source part for air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100344039C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721146A (en) * | 2012-07-03 | 2012-10-10 | 海信科龙电器股份有限公司 | Electric controller for air conditioners |
| CN108361911B (en) * | 2018-02-02 | 2020-11-06 | 广东美的暖通设备有限公司 | Electric control box, air conditioner and fire prevention control method |
| CN109084409B (en) * | 2018-08-21 | 2020-01-24 | 珠海格力电器股份有限公司 | Detection system for preventing over-temperature rise of air conditioner device, detection control method and air conditioner |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1143733A (en) * | 1995-08-22 | 1997-02-26 | 株式会社东芝 | Outdoor assembling unit for air-conditioner |
| CN1231409A (en) * | 1998-03-23 | 1999-10-13 | Lg电子株式会社 | Heat supply control method for heat pump air conditioner |
-
2002
- 2002-04-29 CN CNB021170266A patent/CN100344039C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1143733A (en) * | 1995-08-22 | 1997-02-26 | 株式会社东芝 | Outdoor assembling unit for air-conditioner |
| CN1231409A (en) * | 1998-03-23 | 1999-10-13 | Lg电子株式会社 | Heat supply control method for heat pump air conditioner |
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| Publication number | Publication date |
|---|---|
| CN1455485A (en) | 2003-11-12 |
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Granted publication date: 20071017 Termination date: 20140429 |