CN101943430B - Sensor structure of microwave oven - Google Patents

Sensor structure of microwave oven Download PDF

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Publication number
CN101943430B
CN101943430B CN200910069684.XA CN200910069684A CN101943430B CN 101943430 B CN101943430 B CN 101943430B CN 200910069684 A CN200910069684 A CN 200910069684A CN 101943430 B CN101943430 B CN 101943430B
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CN
China
Prior art keywords
sensor
bracket
hole
micro
wave oven
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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
Application number
CN200910069684.XA
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Chinese (zh)
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CN101943430A (en
Inventor
张国君
方亚林
彭飞
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LG Electronics Tianjin Appliances Co Ltd
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LG Electronics Tianjin Appliances Co Ltd
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Priority to CN200910069684.XA priority Critical patent/CN101943430B/en
Publication of CN101943430A publication Critical patent/CN101943430A/en
Application granted granted Critical
Publication of CN101943430B publication Critical patent/CN101943430B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The invention discloses a sensor structure of a microwave oven. The sensor structure comprises a sensor probe, a sensor shell, a probe hole, a sensor bracket, a bracket through hole, a bracket baffle plate and a fixing rack, wherein the sensor bracket bears and fixes the sensor shell; the bracket through hole is formed on a back panel of the microwave oven; the sensor bracket can be inserted into and drawn out of the bracket through hole; the bracket baffle plate is arranged at the tail end of the sensor bracket to block the bracket through hole; the fixing rack is fixed inside the microwave oven; the position of the opening of the fixing rack corresponds to that of the bracket through hole; when the sensor bracket is inserted into the bracket through hole from the outer side of the microwave oven, the sensor bracket is inserted into and matched with the fixing rack inside the microwave oven; and when the sensor bracket is completely inserted, the position of the probe hole on the sensor shell corresponds to that of an observing hole on a furnace cavity. The sensor bracket can be taken out of the bracket through hole together with a sensor, after the sensor is cleaned outside the microwave oven, the sensor bracket and the sensor are inserted into the bracket through hole again and fixed, and therefore dirt on the sensor can be conveniently cleaned anytime.

Description

The sensor construction of micro-wave oven
Technical field
The invention belongs to the technical field of micro-wave oven, be specifically related to a kind of sensor that can be plugged by rear panel of microwave oven that has, thereby can clear up at any time the dirt being attached on sensor probe, the sensor construction that guarantees the micro-wave oven that sensor probe accurately works.
Technical background
Micro-wave oven is that magnetron produces microwave after power connection, and these microwave irradiations on the heating objects such as food and the device of cooking food.Such micro-wave oven can be divided into the home-use micro-wave oven that is equipped with small size magnetic keyholed back plate and the business micro-wave oven that is equipped with large-scale or a plurality of magnetrons.Micro-wave oven can also be divided into home-use micro-wave oven according to the mode of heat food and generally adopt rotation to fill the glass rotary disc mode of food, and business mainly adopts the figure of confusion mode of scattered radiation microwave with micro-wave oven.Business is mainly applicable to convenience store that utilization rate is high and the food supply retail shop of cooking food at short notice with micro-wave oven, so generally need the relatively high output of more home-use micro-wave oven.
Fig. 1 is the structural representation of micro-wave oven; Fig. 2 is the schematic diagram of sensor construction set-up mode of the micro-wave oven of prior art; Fig. 3 is the sensor construction schematic diagram of the micro-wave oven of prior art.
As shown in Figure 1 to Figure 3, micro-wave oven comprises by the shell that forms outward appearance, furnace chamber 20 and is positioned at the electricity storage chamber 30 of furnace chamber 20 right side sides, also comprises and is located at furnace chamber 20 door 40 above.Right-hand member at the lateral surface of door 40 is provided with handle, and the two ends of handle and door 40 are screwed connection.Shell forms micro-wave oven outward appearance, also plays the effect of the inner furnace chamber 20 of protection simultaneously, so shell generally will be made of the steel plate with some strength.Shell comprise by cover simultaneously furnace chamber 20 above and base plate 13 below of the top panel 11 of two sides, protection, forms the front panel 15 before furnace chamber 20 and protects the rear board 17 at furnace chamber 20 back sides.Furnace chamber 20 is spaces of the cooking such as cooking food thing, the tetragonal chest of front openings, consists of, and both can put into food and take out the food the cooking from opening the place ahead of furnace chamber 20, is provided with the barbecue tube 21 for baking food on the top of furnace chamber.It is to be provided with a plurality of electronic units such as transformer 31, magnetron 33, capacitor 37 for 30, electricity storage chamber of electricity storage chamber 30 inside of electronic unit are set that there is certain ,Gai space, space the right side side of furnace chamber 20.Before electricity storage chamber 30, be provided with control panel assembly.
In addition, the inside of electricity storage chamber 30 is provided with demarcation strip 39 between transformer 31 and radiator fan 35.Transformer 31, radiator fan 35, capacitor 37 and demarcation strip 39 be fixed on sub-panel above.Sub-panel and base plate 13 above between at intervals.
In a plurality of electronic units, transformer 31 and magnetron 33 produce the microwave that irradiates furnace chamber 20 inside.Electronic unit generates heat in the process that produces microwave, so in the time of cooking food, the temperature of electricity storage chamber 30 rises.For the electricity storage chamber 30 of cooling heating, need to suck extraneous air, so radiator fan 35 sucks extraneous air.
In the sensor construction of the micro-wave oven of prior art, sensor probe is arranged on outside the furnace chamber 20 of micro-wave oven, see through the peephole forming on furnace chamber and receive the infrared signal that in furnace chamber, food sends and measure food temperature, temperature signal is converted to the controller that the signal of telecommunication is input to micro-wave oven; Sensor outer housing 60 is arranged on furnace chamber 20 outsides by fixed part 61, by outer casing upper cover 60a and shell lower cover 60b two parts, is combined into, and holds and protects sensor probe; Probe hole is formed on the through hole covering under shell, makes sensor probe can accept thermal signal.
But, in prior art, there is following problem:
In the prior art, sensor outer housing is directly fixed on the upper along upper of micro-wave oven furnace chamber outside, sensor probe sees through the peephole arranging on the probe hole of sensor outer housing and furnace chamber and collects the temperature signal in furnace chamber, when the large food of microwave-oven-heating oil content, the greasy dirt splashing accidentally can be attached to the surface of sensor probe, greasy dirt runs up to a certain amount of can exerting an influence to the thermometric ability of sensor probe later, the ultrared sensitivity that food is sent reduces, thereby have influence on the accuracy of sensor, even there is erroneous judgement, and then cause micro-wave oven misoperation, cause food burned or cross and to thaw, now need to open cabinet maintain and replace sensor probe.
Summary of the invention
The present invention provides a kind of sensor that can be plugged by rear panel of microwave oven that has for solving the technical problem existing in prior art, thereby can clear up at any time the dirt being attached on sensor probe, the sensor construction that guarantees the micro-wave oven that sensor probe accurately works.
The technical scheme that the present invention takes for the technical problem existing in solution prior art is:
The sensor construction of micro-wave oven of the present invention, comprise: sensor probe, be arranged on outside the furnace chamber of micro-wave oven, see through the peephole forming on furnace chamber and receive the infrared signal that in furnace chamber, food sends and measure food temperature, temperature signal is converted to the controller that the signal of telecommunication is input to micro-wave oven; Sensor outer housing, is fixed on furnace chamber outside, forms inner space, holds and protects sensor probe; Probe hole, is arranged on sensor outer housing, and infrared signal is received by the sensor probe of sensor outer housing inside by probe hole, also includes: sensor bracket, and support fixation of sensor shell can move with sensor bracket sensor outer housing simultaneously; Bracket through hole, is arranged on the rear board of micro-wave oven, and sensor bracket can insert, extract out in bracket through hole; Bracket baffle plate, is arranged on the end of sensor bracket, and when sensor bracket inserts bracket through hole completely, bracket baffle plate shelters from bracket through hole; Fixed mount, be fixed on microwave oven internal, its aperture position is corresponding with bracket through hole, when sensor bracket inserts bracket through hole from micro-wave oven outside, at microwave oven internal sensor bracket, be inserted in fixed mount and with fixed mount and match, under the guiding of fixed mount, when sensor bracket inserts completely, on sensor outer housing, probe hole is corresponding with the position of peephole on furnace chamber.
The present invention can also adopt following technical measures:
Guide groove and the guide rail cooperatively interacting is set respectively on described sensor bracket and fixed mount.
Side and bottom surface at sensor bracket arrange respectively the guide rail that cross section is dove-tail form, in side and the inwall bottom of the inwall of fixed mount, the dovetail groove matching with guide rail are set respectively.
The guide rail front end of described sensor bracket side arranges buckle, in the dovetail groove of fixed mount inwall side, slideway is set simultaneously, and buckle moves in slideway with sensor bracket, and the one end of blocking slideway when sensor bracket is extracted out.
On described fixed mount, be provided with limiting section, when sensor enters into observation position, limiting section blocks sensor outer housing makes it not continue to move forward again.
Described fixed mount and the rear board of micro-wave oven fix.
The size of described bracket baffle plate, shape are corresponding with rear board bracket through hole, and when sensor bracket inserts bracket through hole completely, bracket baffle plate just in time shelters from bracket through hole and forms Unified Global with the outward appearance of rear board.
When sensor bracket inserts bracket through hole completely, by screw, the rear board of bracket baffle plate and micro-wave oven is interfixed.
Advantage and good effect that the present invention has are:
In the sensor construction of micro-wave oven of the present invention, bracket through hole is set on the rear board of micro-wave oven, position corresponding with bracket through hole in micro-wave oven arranges fixed mount, the temperature sensor of micro-wave oven is fixed on sensor bracket, and can from bracket through hole, be inserted into microwave oven internal along with sensor bracket, sensor bracket and fixed mount cooperatively interact, and move under the guiding of fixed mount, when sensor bracket inserts completely, the probe hole arranging on sensor outer housing is corresponding with peephole reserved on furnace chamber, be that sensor probe can normally detect the food temperature situation in furnace chamber.When adhering to dirt and having influence on thus the degree of accuracy of sensor on sensor probe, sensor bracket together can be taken out together with sensor from bracket through hole, after sensor being cleaned out from micro-wave oven, be again inserted into fixing, therefore can to sensor, carry out dirt cleaning easily at any time, keep sensor probe all the time in normal duty, improve use of microwave ovens performance, also extended the life-span of micro-wave oven.
Accompanying drawing explanation
Fig. 1 is the structural representation of micro-wave oven;
Fig. 2 is the schematic diagram of sensor construction set-up mode of the micro-wave oven of prior art;
Fig. 3 be prior art the structural representation of sensor construction of micro-wave oven;
Fig. 4 is the structural representation of sensor bracket in the sensor construction of micro-wave oven of the present invention;
Fig. 5 is structural representation when sensor bracket and fixed mount combination in the sensor construction of micro-wave oven of the present invention;
Fig. 6 is structural representation when sensor bracket is extracted out from fixed mount in the sensor construction of micro-wave oven of the present invention;
Fig. 7 is the structural representation of fixed mount installation site in the sensor construction of micro-wave oven of the present invention;
Fig. 8 is the rear board schematic diagram that adopts the micro-wave oven of sensor construction of the present invention.
The specific embodiment
Referring to drawings and Examples, the present invention is described in detail:
Fig. 4 is the structural representation of sensor bracket in the sensor construction of micro-wave oven of the present invention; Fig. 5 is structural representation when sensor bracket and fixed mount combination in the sensor construction of micro-wave oven of the present invention; Fig. 6 is structural representation when sensor bracket is extracted out from fixed mount in the sensor construction of micro-wave oven of the present invention; Fig. 7 is the structural representation of fixed mount installation site in the sensor construction of micro-wave oven of the present invention; Fig. 8 is the rear board schematic diagram that adopts the micro-wave oven of sensor construction of the present invention.
As shown in Fig. 4 to Fig. 8, the sensor construction of micro-wave oven of the present invention, comprise: sensor probe, be arranged on outside the furnace chamber of micro-wave oven, see through the peephole forming on furnace chamber 20 and receive the infrared signal that in furnace chamber, food sends and measure food temperature, temperature signal is converted to the controller that the signal of telecommunication is input to micro-wave oven; Sensor probe adopts a plurality of sample points food temperature to be measured simultaneously, each sample point all drops on the same diameter of meal tray, when running of microwave oven, meal tray rotation, position that each sample point lives through forms a planar range, this scope be exactly the measurement category of all sample points be the field range of sensor probe; Sensor outer housing 60 is fixed on furnace chamber outside, forms inner space, holds and protects sensor probe; Probe hole is arranged on sensor outer housing, and infrared signal is received by the sensor probe of sensor outer housing inside by probe hole; Sensor bracket 63 supports fixation of sensor shell can move with sensor bracket sensor outer housing simultaneously; Bracket through hole is arranged on the rear board 17 of micro-wave oven, and sensor bracket 63 can insert, extract out in bracket through hole; Bracket baffle plate 65 is arranged on the end of sensor bracket 63, and when sensor bracket inserts bracket through hole completely, bracket baffle plate shelters from bracket through hole; Fixed mount 66 is fixed on microwave oven internal, its aperture position is corresponding with bracket through hole, when sensor bracket inserts bracket through hole from micro-wave oven outside, in microwave oven internal sensor bracket 63 is inserted into fixed mount 66 and with fixed mount, match, under the guiding of fixed mount, when sensor bracket inserts completely, on sensor outer housing, probe hole 62 is corresponding with the position of peephole on furnace chamber.
Guide groove and the guide rail cooperatively interacting is set respectively on sensor bracket 63 and fixed mount 66.In the present invention, in side and the bottom surface of sensor bracket, the guide rail 67 that cross section is dove-tail form is set respectively, in side and the inwall bottom of the inwall of fixed mount, the dovetail groove matching with guide rail is set respectively.Guide rail and the guide groove of dove-tail form cooperatively interact, and moving direction that on the one hand can guiding sensor bracket, has also played the effect interfixing on the other hand, makes to be not easy to come off between sensor bracket and fixed mount, keeps stable stationary state.
The guide rail front end of sensor bracket side arranges buckle 68, slideway 69 is set in the dovetail groove of fixed mount inwall side simultaneously, and buckle moves in slideway with sensor bracket, and the one end of blocking slideway when sensor bracket is extracted out.The effect that can play guiding when sensor bracket moves that coordinates of buckle and slideway; in addition; owing to existing circuit to connect between the controller in sensor probe and micro-wave oven; if exceedingly sensor bracket is taken out; after exceeding wire length, can cause circuit disconnecting; therefore wedge shape is buckled in when slideway is interior extracts and move to the slideway end out with sensor bracket; the end that buckle blocks slideway plays spacing effect, and protection sensor is connected with signal with the circuit of other parts of micro-wave oven.
On fixed mount, be provided with limiting section 70, when sensor enters into observation position, limiting section blocks sensor outer housing makes it not continue to move forward again.Limiting section is the gag lever post being horizontally installed on fixed mount in the present invention, defines sensor outer housing to the displacement in furnace chamber, makes probe in observation position exactly.
The rear board of fixed mount and micro-wave oven fixes, and the lead-in portion of fixed mount is corresponding with the bracket lead to the hole site on rear board, can guarantee that sensor bracket is accurately inserted in fixed mount through bracket through hole smoothly.Same in the situation that guaranteeing position and the auspicious correspondence of bracket through hole, fixed mount equally can be arranged on furnace chamber outside or other the fixable positions in micro-wave oven.
The size of bracket baffle plate, shape are corresponding with rear board bracket through hole, when sensor bracket inserts bracket through hole completely, bracket baffle plate just in time shelters from bracket through hole and forms Unified Global with the outward appearance of rear board, is guaranteeing that bracket baffle plate is to the case type overall aesthetics that improves micro-wave oven of bracket through hole simultaneously.When sensor bracket inserts bracket through hole completely, by screw, the rear board of bracket baffle plate and micro-wave oven is interfixed, thereby prevent that sensor bracket is subjected to displacement the in the situation that of vibrations, guarantees that sensor probe is in all the time operating position accurately in use of microwave ovens process.Cleaning sensing when probe only screw need be taken off and then.
In the sensor construction of micro-wave oven of the present invention, bracket through hole is set on the rear board of micro-wave oven, position corresponding with bracket through hole in micro-wave oven arranges fixed mount, the temperature sensor of micro-wave oven is fixed on sensor bracket, and can from bracket through hole, be inserted into microwave oven internal along with sensor bracket, sensor bracket and fixed mount cooperatively interact, and move under the guiding of fixed mount, when sensor bracket inserts completely, the probe hole arranging on sensor outer housing is corresponding with peephole reserved on furnace chamber, be that sensor probe can normally detect the food temperature situation in furnace chamber.When adhering to dirt and having influence on thus the degree of accuracy of sensor on sensor probe, sensor bracket together can be taken out together with sensor from bracket through hole, after sensor being cleaned out from micro-wave oven, be again inserted into fixing, therefore can to sensor, carry out dirt cleaning easily at any time, keep sensor probe all the time in normal duty, improve use of microwave ovens performance, also extended the life-span of micro-wave oven.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention with preferred embodiment openly as above, yet, not in order to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, certainly can utilize the technology contents of announcement to make a little change or modification, become the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solution of the present invention, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all belong in the scope of technical solution of the present invention.

Claims (8)

1. the sensor construction of a micro-wave oven, comprise: sensor probe, be arranged on outside the furnace chamber of micro-wave oven, see through the peephole forming on furnace chamber and receive the infrared signal that in furnace chamber, food sends and measure food temperature, temperature signal is converted to the controller that the signal of telecommunication is input to micro-wave oven; Sensor outer housing, is fixed on furnace chamber outside, forms inner space, holds and protects sensor probe; Probe hole, is arranged on sensor outer housing, and infrared signal is received by the sensor probe of sensor outer housing inside by probe hole, it is characterized in that, also include: sensor bracket, support fixation of sensor shell can move with sensor bracket sensor outer housing simultaneously; Bracket through hole, is arranged on the rear board of micro-wave oven, and sensor bracket can insert, extract out in bracket through hole; Bracket baffle plate, is arranged on the end of sensor bracket, and when sensor bracket inserts bracket through hole completely, bracket baffle plate shelters from bracket through hole; Fixed mount, be fixed on microwave oven internal, its aperture position is corresponding with bracket through hole, when sensor bracket inserts bracket through hole from micro-wave oven outside, at microwave oven internal sensor bracket, be inserted in fixed mount and with fixed mount and match, under the guiding of fixed mount, when sensor bracket inserts completely, on sensor outer housing, probe hole is corresponding with the position of peephole on furnace chamber; Sensor can be plugged by rear panel of microwave oven, thereby can clear up at any time the dirt being attached on sensor probe.
2. the sensor construction of micro-wave oven according to claim 1, is characterized in that: guide groove and the guide rail cooperatively interacting is set respectively on sensor bracket and fixed mount.
3. the sensor construction of micro-wave oven according to claim 2, it is characterized in that: side and bottom surface at sensor bracket arrange respectively the guide rail that cross section is dove-tail form, in side and the inwall bottom of the inwall of fixed mount, the dovetail groove matching with guide rail is set respectively.
4. the sensor construction of micro-wave oven according to claim 3, it is characterized in that: the guide rail front end of sensor bracket side arranges buckle, in the dovetail groove of fixed mount inwall side, slideway is set simultaneously, buckle moves in slideway with sensor bracket, and the one end of blocking slideway when sensor bracket is extracted out.
5. the sensor construction of micro-wave oven according to claim 1, is characterized in that: on fixed mount, be provided with limiting section, when sensor enters into observation position, limiting section blocks sensor outer housing makes it not continue to move forward again.
6. the sensor construction of micro-wave oven according to claim 1, is characterized in that: the rear board of fixed mount and micro-wave oven fixes.
7. the sensor construction of micro-wave oven according to claim 1, it is characterized in that: the size of bracket baffle plate, shape are corresponding with rear board bracket through hole, when sensor bracket inserts bracket through hole completely, bracket baffle plate just in time shelters from bracket through hole and forms Unified Global with the outward appearance of rear board.
8. the sensor construction of micro-wave oven according to claim 1, is characterized in that: when sensor bracket inserts bracket through hole completely, by screw, the rear board of bracket baffle plate and micro-wave oven is interfixed.
CN200910069684.XA 2009-07-10 2009-07-10 Sensor structure of microwave oven Expired - Fee Related CN101943430B (en)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103512059A (en) * 2012-06-29 2014-01-15 太仓南极风能源设备有限公司 Complete-shut-off microwave oven
CN103512058A (en) * 2012-06-29 2014-01-15 太仓南极风能源设备有限公司 Microwave oven
CN107449514B (en) * 2017-09-12 2023-09-22 上海龙华汽车配件有限公司 Portable intermediate frequency normalizing temperature measuring device
CN109186650B (en) * 2018-08-24 2020-08-11 佛山市富乐喜电子信息技术有限公司 Planar antenna microwave sensor mounting structure

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US4233478A (en) * 1977-08-12 1980-11-11 Bunker Ramo Corporation Circuit transfer apparatus
EP0098402A1 (en) * 1982-06-11 1984-01-18 Kabushiki Kaisha Toshiba Temperature measuring apparatus
US5043547A (en) * 1990-03-21 1991-08-27 Goldstar Co., Ltd. Temperature sensor connecting device for microwave oven
JP2001165445A (en) * 1999-12-10 2001-06-22 Matsushita Electric Ind Co Ltd Microwave oven
CN1106535C (en) * 1997-03-18 2003-04-23 三洋电机株式会社 Cooking apparatus

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Patent Citations (6)

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Publication number Priority date Publication date Assignee Title
US3988930A (en) * 1975-12-22 1976-11-02 General Electric Company Microwave oven food temperature-sensing probe
US4233478A (en) * 1977-08-12 1980-11-11 Bunker Ramo Corporation Circuit transfer apparatus
EP0098402A1 (en) * 1982-06-11 1984-01-18 Kabushiki Kaisha Toshiba Temperature measuring apparatus
US5043547A (en) * 1990-03-21 1991-08-27 Goldstar Co., Ltd. Temperature sensor connecting device for microwave oven
CN1106535C (en) * 1997-03-18 2003-04-23 三洋电机株式会社 Cooking apparatus
JP2001165445A (en) * 1999-12-10 2001-06-22 Matsushita Electric Ind Co Ltd Microwave oven

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