US20040003611A1 - Refridgerating device with a temperature sensor - Google Patents
Refridgerating device with a temperature sensor Download PDFInfo
- Publication number
- US20040003611A1 US20040003611A1 US10/411,600 US41160003A US2004003611A1 US 20040003611 A1 US20040003611 A1 US 20040003611A1 US 41160003 A US41160003 A US 41160003A US 2004003611 A1 US2004003611 A1 US 2004003611A1
- Authority
- US
- United States
- Prior art keywords
- refrigerating device
- temperature
- interior
- infrared sensor
- sensor
- 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.)
- Abandoned
Links
- 230000005855 radiation Effects 0.000 claims description 9
- 230000000007 visual effect Effects 0.000 claims description 4
- 238000003384 imaging method Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 3
- 238000009529 body temperature measurement Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/04—Casings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/04—Casings
- G01J5/041—Mountings in enclosures or in a particular environment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
Definitions
- the invention relates to a refrigerating device with a temperature sensor for detecting an operating temperature of the refrigerating device.
- an operating temperature such as an interior temperature or the temperature of an evaporator are conventionally detected using temperature-dependent resistances which are connected via a cable harness to a control circuit to regulate the refrigeration.
- Wiring is required to feed the measurement signal of the temperature-sensitive resistance to the control circuit.
- This wiring is sensitive to disturbances caused by electromagnetic stray effects.
- the detected temperature is not necessarily the temperature of the location to be monitored but the temperature established in the temperature-sensitive resistance. In order to avoid falsifications of the temperature measurement, it is thus necessary to insulate this efficiently from the non-refrigerated outer area.
- the object of the present invention is to provide a refrigerating device with a temperature sensor wherein the installation of the temperature sensor is simplified, wherein the sensitivity of the measurement signal of the temperature sensor to electromagnetic stray effects is reduced and wherein any failure as a result of thermal stresses is eliminated.
- the operating temperature to be detected by the infrared sensor of this refrigerating device can be an interior temperature of the refrigerating device.
- a black body with which the infrared sensor is in visual contact can be provided in the interior of the refrigerating device.
- the temperature of an evaporator of the refrigerating device can also be considered as the operating temperature to be measured.
- the infrared sensor is advantageously in visual contact with a surface of the evaporator facing the interior of the refrigerating device. This allows the temperature of this surface of the evaporator relevant for the cooling of the interior to be measured directly instead of the temperature of the back side which is easier to achieve in measurements using a temperature-sensitive resistance but may be falsified by a heat inflow from outside.
- the infrared sensor need not be located in direct contact with the object whose temperature it is to measure, it is possible to locate said sensor in the immediate neighbourhood of the control circuit, especially on a common board with the control circuit; thus the control circuit and the temperature sensor can be prefabricated as a structural unit and built into the refrigerating device according to the invention jointly during installation.
- the temperature of the infrared sensor is not decisive for the measurement result, said sensor can be attached in a non-refrigerated outer area of the refrigerating device. In such a case it is desirable that it is separated from the measurement surface to be monitored by an infrared-transparent window which blocks an unhindered inflow of heat into the interior of the refrigerating device.
- the distance between the infrared sensor and the measurement surface to be monitored by it is large, it is desirable to provide a lens between the two to image the measurement surface on a radiation-sensitive surface of the sensor. This lens can especially form the afore-mentioned window at the same time.
- FIG. 1 is a schematic section through a part of the housing of a refrigerating device according to the invention according to a first embodiment of the invention.
- FIG. 2 is a similar section according to a second embodiment of the invention.
- FIG. 1 shows a highly schematic section through the upper front corner of the housing of a refrigerating device according to the invention.
- the refrigerating device comprises a thermally insulating housing of which a part of an upper side 1 and a front side 2 with a door 3 mounted thereon can be seen in FIG. 1.
- a screen 4 which can be a simple plastic moulding without any substantial thermal insulation effect of its own.
- an infrared sensor can detect the intensity of infrared radiation in various spectral ranges and allows the temperature of the radiation source to be inferred from the intensity distribution.
- This infrared sensor can, for example, be of a similar type to those used in so-called “ear thermometers” for measuring body temperature.
- the infrared radiation from the interior of a refrigerating device is certainly significantly weaker and on average of longer wavelength than that of the human body but the requirements on the measurement accuracy for regulating a refrigerating device are significantly lower than those for body temperature measurements so that such an infrared sensor is considered suitable for regulating a refrigerating device.
- the attachment of the board 5 with the control circuit in the front area of the refrigerating device has the advantage that it is possible to mount display elements such as a light-emitting diode 8 on the board 5 , said display elements being visible for a user through a window 9 of the screen 4 so that the user can easily confirm that the refrigerating device is operating correctly at any time.
- Regulators for example, for setting a desired temperature of the interior, can also be mounted directly on the board 5 and are nevertheless easily accessible for a user.
- the infrared sensor 7 is located opposite a window 10 let into the front side 2 and made of an infrared-transparent material, through which the characteristic thermal radiation of a black body 11 mounted in the interior 6 can pass substantially unhindered onto the radiation-sensitive surface of the infrared sensor 7 .
- the black body 11 so that the infrared sensor 7 to a certain extent has a “free view” into the interior 6 through the window 10 .
- this interior 6 also has the radiation characteristic of a black body; so that by omitting the black body 11 , a temperature averaged over the entire field of view of the infrared sensor 7 can be measured using the infrared sensor 7 .
- Such an arrangement has the peculiarity that the measurement values detected by the infrared sensor 7 can be “falsified” if chilled goods which have only just been loaded into the refrigerating device and have not yet acquired its inner temperature, are located in its field of view.
- the infrared radiation power of a body increases substantially more strongly than linearly with its temperature.
- Such “warm” chilled goods can thus to a certain extent “swamp” their cold environment.
- the temperature detected by the infrared sensor is higher than the arithmetic mean of the temperature formed taking into account the “warm” chilled goods.
- such a falsification can be absolutely desirable because it allows the refrigeration capacity of the refrigerating device to be set high before the heat brought in with the new chilled goods has spread in the interior. In this way, heating of the interior by newly brought-in relatively warm chilled goods is reliably prevented without any expensive circuitry measures being required for this.
- FIG. 2 shows a section similar to that in FIG. 1 through a further developed variant of a refrigerating device according to the invention.
- FIG. 2 also shows part of the back wall 13 of its housing and an evaporator plate 14 arranged thereon.
- the window 10 is replaced by a lens 15 which is made of the same material as the window 10 and can be let into the front side 2 of the housing in a corresponding fashion.
- the lens 15 has the effect that the field of view 16 of the lens delimited by the dashed lines in FIG. 2 is limited compared with the embodiment in FIG. 1 and merely covers a limited area 17 of the evaporator plate 14 . With this arrangement the temperature of the evaporator plate 14 can be precisely monitored transversely through the interior 6 .
- the infrared sensor 7 Since the infrared sensor 7 is not itself exposed to the temperature fluctuations in the evaporator plate, its lifetime is not adversely influenced hereby and disturbances in the operation of the refrigerating device are avoided.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Radiation Pyrometers (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
A refrigerating device is equipped with a temperature sensor in the form of an infrared sensor (7), for detecting an operating temperature of the device. Said infrared sensor (7) is located on a board (5) in a non-refrigerated are of the refrigerating device, together with a control circuit.
Description
- The invention relates to a refrigerating device with a temperature sensor for detecting an operating temperature of the refrigerating device.
- In refrigerating devices such as refrigerators, freezers or combination appliances an operating temperature such as an interior temperature or the temperature of an evaporator are conventionally detected using temperature-dependent resistances which are connected via a cable harness to a control circuit to regulate the refrigeration.
- This technology which has been in normal use for a long time has various disadvantages. Firstly, it is necessary to attach the temperature-sensitive resistance directly at the location whose temperature is to be detected. However, the control circuit which regulates the operation of a refrigerating machine using the temperature detected by the temperature sensor is usually located in a non refrigerated outer area of the refrigerating device in order to avoid malfunctions caused by condensate formation on the control circuit. The spatial separation of the control circuit and the temperature sensor forced thereby makes these complicated and therefore expensive to attach.
- Wiring is required to feed the measurement signal of the temperature-sensitive resistance to the control circuit. This wiring is sensitive to disturbances caused by electromagnetic stray effects. In addition, the detected temperature is not necessarily the temperature of the location to be monitored but the temperature established in the temperature-sensitive resistance. In order to avoid falsifications of the temperature measurement, it is thus necessary to insulate this efficiently from the non-refrigerated outer area.
- Especially when such a conventional temperature sensor is used to monitor the temperature of an evaporator, the strong temperature fluctuations to which such a sensor is exposed and which can extend from −40° C. under normal refrigeration as far as +8° C. during defrosting, lead to considerable mechanical stresses on the insulation of the temperature sensitive resistance which can result in failures.
- The object of the present invention is to provide a refrigerating device with a temperature sensor wherein the installation of the temperature sensor is simplified, wherein the sensitivity of the measurement signal of the temperature sensor to electromagnetic stray effects is reduced and wherein any failure as a result of thermal stresses is eliminated.
- This object is achieved by a refrigerating device according to
claim 1. - The operating temperature to be detected by the infrared sensor of this refrigerating device can be an interior temperature of the refrigerating device. In this case, a black body with which the infrared sensor is in visual contact can be provided in the interior of the refrigerating device.
- The temperature of an evaporator of the refrigerating device can also be considered as the operating temperature to be measured. In this case, the infrared sensor is advantageously in visual contact with a surface of the evaporator facing the interior of the refrigerating device. This allows the temperature of this surface of the evaporator relevant for the cooling of the interior to be measured directly instead of the temperature of the back side which is easier to achieve in measurements using a temperature-sensitive resistance but may be falsified by a heat inflow from outside. Since the infrared sensor need not be located in direct contact with the object whose temperature it is to measure, it is possible to locate said sensor in the immediate neighbourhood of the control circuit, especially on a common board with the control circuit; thus the control circuit and the temperature sensor can be prefabricated as a structural unit and built into the refrigerating device according to the invention jointly during installation.
- Since the temperature of the infrared sensor is not decisive for the measurement result, said sensor can be attached in a non-refrigerated outer area of the refrigerating device. In such a case it is desirable that it is separated from the measurement surface to be monitored by an infrared-transparent window which blocks an unhindered inflow of heat into the interior of the refrigerating device.
- If the distance between the infrared sensor and the measurement surface to be monitored by it is large, it is desirable to provide a lens between the two to image the measurement surface on a radiation-sensitive surface of the sensor. This lens can especially form the afore-mentioned window at the same time.
- Further features and advantages of the invention are deduced from the following description of embodiments with reference to the appended drawings wherein:
- FIG. 1 is a schematic section through a part of the housing of a refrigerating device according to the invention according to a first embodiment of the invention; and
- FIG. 2 is a similar section according to a second embodiment of the invention.
- FIG. 1 shows a highly schematic section through the upper front corner of the housing of a refrigerating device according to the invention. The refrigerating device comprises a thermally insulating housing of which a part of an
upper side 1 and afront side 2 with adoor 3 mounted thereon can be seen in FIG. 1. - Mounted above the
door 3 on thefront side 2 is ascreen 4 which can be a simple plastic moulding without any substantial thermal insulation effect of its own. - In the space enclosed by the
screen 4 and thefront side 2 there is a control circuit on aboard 5 and aninfrared sensor 7 mounted on its surface facing theinterior 6 of the refrigerating device. Such an infrared sensor can detect the intensity of infrared radiation in various spectral ranges and allows the temperature of the radiation source to be inferred from the intensity distribution. This infrared sensor can, for example, be of a similar type to those used in so-called “ear thermometers” for measuring body temperature. The infrared radiation from the interior of a refrigerating device is certainly significantly weaker and on average of longer wavelength than that of the human body but the requirements on the measurement accuracy for regulating a refrigerating device are significantly lower than those for body temperature measurements so that such an infrared sensor is considered suitable for regulating a refrigerating device. - The attachment of the
board 5 with the control circuit in the front area of the refrigerating device has the advantage that it is possible to mount display elements such as a light-emitting diode 8 on theboard 5, said display elements being visible for a user through awindow 9 of thescreen 4 so that the user can easily confirm that the refrigerating device is operating correctly at any time. Regulators, for example, for setting a desired temperature of the interior, can also be mounted directly on theboard 5 and are nevertheless easily accessible for a user. - The
infrared sensor 7 is located opposite awindow 10 let into thefront side 2 and made of an infrared-transparent material, through which the characteristic thermal radiation of ablack body 11 mounted in theinterior 6 can pass substantially unhindered onto the radiation-sensitive surface of theinfrared sensor 7. - With the aid of the
black body 11 it is possible to specifically measure the temperature in a critical area of theinterior 6. Such an area is precisely the front upper area of theinterior 6, where theblack body 11 is shown in the figure because the highest temperatures of the interior are generally established here as a result of the heat inflow into theinterior 6 which is strongest along the edges of thedoor 3. - However, it is also possible to omit the
black body 11 so that theinfrared sensor 7 to a certain extent has a “free view” into theinterior 6 through thewindow 10. In thermal equilibrium thisinterior 6 also has the radiation characteristic of a black body; so that by omitting theblack body 11, a temperature averaged over the entire field of view of theinfrared sensor 7 can be measured using theinfrared sensor 7. Such an arrangement has the peculiarity that the measurement values detected by theinfrared sensor 7 can be “falsified” if chilled goods which have only just been loaded into the refrigerating device and have not yet acquired its inner temperature, are located in its field of view. The infrared radiation power of a body increases substantially more strongly than linearly with its temperature. Such “warm” chilled goods can thus to a certain extent “swamp” their cold environment. In such a case, the temperature detected by the infrared sensor is higher than the arithmetic mean of the temperature formed taking into account the “warm” chilled goods. However, such a falsification can be absolutely desirable because it allows the refrigeration capacity of the refrigerating device to be set high before the heat brought in with the new chilled goods has spread in the interior. In this way, heating of the interior by newly brought-in relatively warm chilled goods is reliably prevented without any expensive circuitry measures being required for this. - FIG. 2 shows a section similar to that in FIG. 1 through a further developed variant of a refrigerating device according to the invention. In addition to the elements already shown in FIG. 1 and described above, FIG. 2 also shows part of the
back wall 13 of its housing and anevaporator plate 14 arranged thereon. In this variant thewindow 10 is replaced by alens 15 which is made of the same material as thewindow 10 and can be let into thefront side 2 of the housing in a corresponding fashion. - The
lens 15 has the effect that the field ofview 16 of the lens delimited by the dashed lines in FIG. 2 is limited compared with the embodiment in FIG. 1 and merely covers alimited area 17 of theevaporator plate 14. With this arrangement the temperature of theevaporator plate 14 can be precisely monitored transversely through theinterior 6. - Since the
infrared sensor 7 is not itself exposed to the temperature fluctuations in the evaporator plate, its lifetime is not adversely influenced hereby and disturbances in the operation of the refrigerating device are avoided. - Various further developments of the embodiments described above are possible within the framework of the present invention. For example, it is feasible to mount a plurality of infrared sensors on the
board 5, each monitoring a field of view in theinterior 6 of the refrigerating device via their own window. Such differentiated temperature monitoring makes it possible for the control circuit to differentiate, for example, between newly inserted chilled goods, which merely lead to locally increased measured temperature values, and a general functional disorder when the temperature of theentire interior 6 rises as a result of failure of the cooling.
Claims (10)
1. A refrigerating device with a temperature sensor for detecting an operating temperature of the device, characterised in that the temperature sensor is an infrared sensor (7).
2. The refrigerating device according to claim 1 , characterised in that the operating temperature is the temperature of an interior (6) of the refrigerating device.
3. The refrigerating device according to claim 2 , characterised in that the infrared sensor (7) is in visual contact with a black body (11) located in the interior (6).
4. The refrigerating device according to claim 1 , characterised in that the operating temperature is the temperature of an evaporator (14) of the refrigerating device.
5. The refrigerating device according to claim 4 , characterized in ithat the infrared sensor (7) is in visual contact with a surface of the evaporator (14) facing the interior (6) of the refrigerating device.
6. The refrigerating device according to one of the preceding claims, characterised in that the infrared sensor (7) is connected to a control circuit for the operating temperature and is located in the immediate neighhourhood thereof.
7. The refrigerating device according to claim 6 , characterised in that the infrared sensor (7) is located on a common board (5) with the control circuit.
8. The refrigerating device according to one of the preceding claims, characterised in that the temperature sensor is attached in a non-refrigerated outer area of the refrigerating device and is separated from a measuring surface to be monitored by means of an infrared-transparent window (10, 15).
9. The refrigerating device according to claim 8 , characterised in that the temperature sensor is accommodated below a front screen (4) of the refrigerating device.
10. The refrigerating device according to one of the preceding claims, characterised by a lens (15) for imaging a measuring surface (17) on a radiation-sensitive surface of the temperature sensor.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10050074.9 | 2000-10-10 | ||
WOPCT/EP01/11350 | 2000-10-10 | ||
DE10050074A DE10050074A1 (en) | 2000-10-10 | 2000-10-10 | Refrigeration device with temperature sensor has infrared sensor for detecting operating temperature of refrigeration device, namely operating temperature of inner volume of device |
PCT/EP2001/011350 WO2002031453A1 (en) | 2000-10-10 | 2001-10-01 | Refrigerating device with a temperature sensor |
Publications (1)
Publication Number | Publication Date |
---|---|
US20040003611A1 true US20040003611A1 (en) | 2004-01-08 |
Family
ID=7659229
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/411,600 Abandoned US20040003611A1 (en) | 2000-10-10 | 2003-04-10 | Refridgerating device with a temperature sensor |
Country Status (10)
Country | Link |
---|---|
US (1) | US20040003611A1 (en) |
EP (1) | EP1327127A1 (en) |
JP (1) | JP2004511764A (en) |
KR (1) | KR20030040487A (en) |
CN (1) | CN1220036C (en) |
AU (1) | AU2001293859A1 (en) |
BR (1) | BR0114244A (en) |
DE (1) | DE10050074A1 (en) |
PL (1) | PL360730A1 (en) |
WO (1) | WO2002031453A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080255641A1 (en) * | 2007-03-12 | 2008-10-16 | Lma Medical Innovations Limited | Device and method for temperature management of heating pad systems |
US20120137894A1 (en) * | 2009-08-04 | 2012-06-07 | Wmf Wuerttembergische Metallwarenfabrik Ag | Device for storing milk |
US20120241617A1 (en) * | 2011-03-25 | 2012-09-27 | Uhlmann Pac-Systeme Gmbh & Co. Kg | Device for inspecting small pharmaceutical products |
US9408939B2 (en) | 2013-03-15 | 2016-08-09 | Medline Industries, Inc. | Anti-microbial air processor for a personal patient warming apparatus |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITTO20030343A1 (en) * | 2003-05-09 | 2004-11-10 | Fiat Ricerche | REFRIGERATOR WITH PERFECTED TEMPERATURE CONTROL |
CN103673495A (en) * | 2012-09-25 | 2014-03-26 | 海尔集团公司 | Refrigerating illumination device and method |
CN106642977B (en) * | 2016-12-27 | 2019-12-13 | Tcl集团股份有限公司 | frequency conversion method and device |
DE102017113246A1 (en) * | 2017-06-16 | 2018-12-20 | Liebherr-Hausgeräte Ochsenhausen GmbH | Fridge and / or freezer |
CN110031111A (en) * | 2019-04-24 | 2019-07-19 | 中国科学院云南天文台 | It is a kind of for atmospheric radiation detection system infrared in Astronomical Site Testing |
CN112984947B (en) * | 2021-03-08 | 2021-11-02 | 上海绿联智能科技股份有限公司 | Temperature control method and device for refrigerator and intelligent control storage medium |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4671458A (en) * | 1985-02-25 | 1987-06-09 | Kabushiki Kaisha Toshiba | Air conditioning apparatus |
US4891952A (en) * | 1987-07-22 | 1990-01-09 | Sharp Kabushiki Kaisha | Freezer-refrigerator |
US6082894A (en) * | 1996-08-30 | 2000-07-04 | Hubbell Incorporated | Temperature and passive infrared sensor module |
US6405547B2 (en) * | 1999-09-09 | 2002-06-18 | Mitsubishi Denki Kabushiki Kaisha | Refrigerator and method of operating refrigerator |
US6467697B2 (en) * | 1999-03-31 | 2002-10-22 | Melexis Nv | Temperature control system |
US6625997B1 (en) * | 2001-10-26 | 2003-09-30 | Delphi Technologies, Inc. | Automotive air conditioning system |
US6694758B1 (en) * | 2002-08-14 | 2004-02-24 | Lg Electronics Inc. | Apparatus and method for controlling concentrated cooling of refrigerator |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD228060A1 (en) * | 1984-05-28 | 1985-10-02 | Dkk Scharfenstein Veb | TEMPERATURE SENSOR SYSTEM FOR HOUSEHOLD CHAIN UNITS |
-
2000
- 2000-10-10 DE DE10050074A patent/DE10050074A1/en not_active Withdrawn
-
2001
- 2001-10-01 AU AU2001293859A patent/AU2001293859A1/en not_active Abandoned
- 2001-10-01 EP EP01974320A patent/EP1327127A1/en not_active Withdrawn
- 2001-10-01 JP JP2002534789A patent/JP2004511764A/en active Pending
- 2001-10-01 PL PL01360730A patent/PL360730A1/en not_active Application Discontinuation
- 2001-10-01 CN CNB018171532A patent/CN1220036C/en not_active Expired - Fee Related
- 2001-10-01 KR KR10-2003-7004206A patent/KR20030040487A/en not_active Application Discontinuation
- 2001-10-01 BR BR0114244-5A patent/BR0114244A/en not_active IP Right Cessation
- 2001-10-01 WO PCT/EP2001/011350 patent/WO2002031453A1/en not_active Application Discontinuation
-
2003
- 2003-04-10 US US10/411,600 patent/US20040003611A1/en not_active Abandoned
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4671458A (en) * | 1985-02-25 | 1987-06-09 | Kabushiki Kaisha Toshiba | Air conditioning apparatus |
US4891952A (en) * | 1987-07-22 | 1990-01-09 | Sharp Kabushiki Kaisha | Freezer-refrigerator |
US6082894A (en) * | 1996-08-30 | 2000-07-04 | Hubbell Incorporated | Temperature and passive infrared sensor module |
US6467697B2 (en) * | 1999-03-31 | 2002-10-22 | Melexis Nv | Temperature control system |
US6405547B2 (en) * | 1999-09-09 | 2002-06-18 | Mitsubishi Denki Kabushiki Kaisha | Refrigerator and method of operating refrigerator |
US6625997B1 (en) * | 2001-10-26 | 2003-09-30 | Delphi Technologies, Inc. | Automotive air conditioning system |
US6694758B1 (en) * | 2002-08-14 | 2004-02-24 | Lg Electronics Inc. | Apparatus and method for controlling concentrated cooling of refrigerator |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080255641A1 (en) * | 2007-03-12 | 2008-10-16 | Lma Medical Innovations Limited | Device and method for temperature management of heating pad systems |
US20120137894A1 (en) * | 2009-08-04 | 2012-06-07 | Wmf Wuerttembergische Metallwarenfabrik Ag | Device for storing milk |
US20120241617A1 (en) * | 2011-03-25 | 2012-09-27 | Uhlmann Pac-Systeme Gmbh & Co. Kg | Device for inspecting small pharmaceutical products |
US9063096B2 (en) * | 2011-03-25 | 2015-06-23 | Uhlmann Pac-Systeme Gmbh & Co. Kg | Device for inspecting small pharmaceutical products |
US9408939B2 (en) | 2013-03-15 | 2016-08-09 | Medline Industries, Inc. | Anti-microbial air processor for a personal patient warming apparatus |
Also Published As
Publication number | Publication date |
---|---|
CN1220036C (en) | 2005-09-21 |
WO2002031453A1 (en) | 2002-04-18 |
JP2004511764A (en) | 2004-04-15 |
CN1469992A (en) | 2004-01-21 |
DE10050074A1 (en) | 2002-04-18 |
PL360730A1 (en) | 2004-09-20 |
AU2001293859A1 (en) | 2002-04-22 |
EP1327127A1 (en) | 2003-07-16 |
BR0114244A (en) | 2003-10-07 |
KR20030040487A (en) | 2003-05-22 |
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AS | Assignment |
Owner name: BSH BOSCH UND SIEMENS HAUSGERATE GMBH, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WALTER, ALEXANDER;REEL/FRAME:014538/0651 Effective date: 20030926 |
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STCB | Information on status: application discontinuation |
Free format text: EXPRESSLY ABANDONED -- DURING EXAMINATION |