CN221099887U - Infrared temperature measurement module and induction cooking utensil - Google Patents
Infrared temperature measurement module and induction cooking utensil Download PDFInfo
- Publication number
- CN221099887U CN221099887U CN202322593130.8U CN202322593130U CN221099887U CN 221099887 U CN221099887 U CN 221099887U CN 202322593130 U CN202322593130 U CN 202322593130U CN 221099887 U CN221099887 U CN 221099887U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- shielding shell
- temperature measurement
- measurement module
- infrared temperature
- 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.)
- Active
Links
- 238000009529 body temperature measurement Methods 0.000 title claims abstract description 25
- 230000006698 induction Effects 0.000 title claims abstract description 18
- 238000010411 cooking Methods 0.000 title claims abstract description 17
- 229910000530 Gallium indium arsenide Inorganic materials 0.000 claims abstract description 8
- 238000004861 thermometry Methods 0.000 claims description 10
- 239000007769 metal material Substances 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims 1
- 230000005684 electric field Effects 0.000 abstract description 7
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000005388 borosilicate glass Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model discloses an infrared temperature measurement module and an induction cooking utensil, wherein the infrared temperature measurement module comprises a circuit board, a shielding shell and a second electric connector, an InGaAs photodiode is arranged on the circuit board and is electrically connected with the circuit board, and a first electric connector is arranged on the circuit board and is electrically connected with a conductive layer of the circuit board; the shielding shell at least covers part of the circuit board, and the InGaAs photodiode and the first electric connector are both arranged in the shielding shell; the second electric connecting piece is respectively and electrically connected with the shielding shell and the first electric connecting piece. According to the technical scheme, the first electric connecting piece and the second electric connecting piece are arranged to electrically connect the shielding shell with the conducting layer of the circuit board, so that an alternating electric field generated by a magnetic field generated by the coil panel on the shielding shell is eliminated.
Description
Technical Field
The utility model relates to the technical field of induction cooking appliances, in particular to an infrared temperature measurement module and an induction cooking appliance.
Background
The existing thermopile detector can detect infrared rays with a wavelength of more than 3 mu m, but has no response to infrared rays with a wavelength of less than 3 mu m basically. The panel (microcrystalline panel, high borosilicate glass) used in induction cooking appliance (such as electromagnetic oven) is less than 2.8 μm in infrared band, so that the thermopile detector can not sense the infrared rays of microcrystalline glass.
In the prior art, an electromagnetic oven using an InGaAs sensor as an infrared temperature measurement module is disclosed, and the temperature measurement and temperature control precision of the electromagnetic oven can be improved by matching with a proper infrared probe according to the characteristics of microcrystalline glass. As disclosed in patent CN2019218056461, an infrared temperature measuring device and an electromagnetic oven, the infrared temperature measuring device includes an indium gallium arsenic detector, a detector protection shell, a signal processing circuit board and a shielding shell, but no electrical connection between the shielding shell and the signal processing circuit board is disclosed. Because the shielding shell can generate an alternating electric field in the magnetic field generated by the coil disc, the alternating electric field is coupled to the detector, the components and the signal wire through the distributed capacitor, so that interference is generated, and the temperature measurement becomes inaccurate.
Disclosure of utility model
The utility model mainly aims to provide an infrared temperature measurement module and an induction cooking utensil, which are used for induction cooking utensils such as an electromagnetic oven and the like and aim to solve the technical problem that a shielding shell in a magnetic field generated by a coil panel can interfere the temperature measurement of an infrared detector.
In order to achieve the above object, the present utility model provides an infrared temperature measurement module, comprising:
The circuit board is provided with a first electric connecting piece and is electrically connected with the conducting layer of the circuit board;
The shielding shell at least covers part of the circuit board, and the InGaAs photodiode and the first electric connector are arranged in the shielding shell; and
And the second electric connecting piece is respectively and electrically connected with the shielding shell and the first electric connecting piece.
Optionally, the first electrical connector is a nut, and the second electrical connector is a screw or conductive adhesive.
Optionally, a through hole is formed in the shielding shell, and the screw penetrates through the through hole and is connected to the nut.
Optionally, the first electrical connector comprises a plurality of nuts and the second electrical connector comprises a plurality of screws.
Optionally, the shielding shell has an opening, and the photosurface of the ingaas photodiode is disposed towards the opening.
Optionally, the shielding shell is made of metal.
Optionally, the shielding shell comprises at least one housing.
Optionally, the shape of the shielding shell is square or cylindrical.
Optionally, the circuit board is electrically connected to the conductive layer of the circuit board with reference to a ground line.
The utility model also provides an induction cooking appliance, which comprises the infrared temperature measurement module.
According to the technical scheme, the first electric connecting piece and the second electric connecting piece are arranged to electrically connect the shielding shell with the conductive layer of the circuit board, so that an alternating electric field generated by a magnetic field generated by the coil panel on the shielding shell is eliminated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a top view of an embodiment of an infrared thermometry module according to the present utility model;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
FIG. 3 is a top view of another embodiment of an infrared thermometry module according to the present utility model;
FIG. 4 is a schematic cross-sectional view of FIG. 3;
FIG. 5 is a schematic cross-sectional view of another embodiment of an infrared thermometry module according to the present utility model;
FIG. 6 is a schematic cross-sectional view of another embodiment of an infrared thermometry module according to the present utility model;
FIG. 7 is a top view of another embodiment of an infrared thermometry module according to the present utility model;
fig. 8 is a schematic cross-sectional view of fig. 7.
In the figure: the infrared temperature measurement module-100A/B/C, a circuit board-1, an InGaAs photodiode-11, a first electric connector-12, a mounting hole-13, a shielding shell-2, a through hole-21, an opening-22 and a second electric connector-3.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
For a better description and illustration of embodiments of the utility model, reference should be made to one or more of the accompanying drawings, but the additional details or examples used to describe the drawings should not be construed as limiting the scope of any of the inventive, presently described embodiments or preferred modes of carrying out the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are positional relationships based on the drawings, are merely for convenience of describing the present utility model, and do not indicate that the apparatus referred to must have a specific orientation or operate in a specific orientation, and thus should not be construed as limiting the present utility model.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
The prior patent CN2019218056461 discloses an infrared temperature measuring device and an electromagnetic oven, the infrared temperature measuring device comprises an indium gallium arsenic detector, a detector protecting shell, a signal processing circuit board and a shielding shell, but no electric connection between the shielding shell and the signal processing circuit board is disclosed. Because the shielding shell can generate an alternating electric field in the magnetic field generated by the coil disc, the alternating electric field is coupled to the detector, the components and the signal wire through the distributed capacitor, so that interference is generated, and the temperature measurement becomes inaccurate.
In view of this, the present utility model provides an infrared temperature measurement module, which is mainly used for induction cooking appliances, fig. 1 to 8 are several embodiments of the infrared temperature measurement module provided by the present utility model, please refer to fig. 1 to 8, and the infrared temperature measurement module 100A/B/C includes a circuit board 1 and a shielding case 2.
Specifically, the circuit board 1 is provided with and electrically connected with an ingaas photodiode 11, and a photosurface of the ingaas photodiode 11 can receive infrared light emitted by a target and transmit signals to a signal processing circuit of the circuit board 1 so as to calculate a temperature signal of the target; the circuit board 1 is provided with a first electric connector 12 and is electrically connected with the conductive layer of the circuit board 1; the shielding shell 2 at least covers part of the circuit board 1, and the InGaAs photodiode 11 and the first electrical connector 12 are both arranged in the shielding shell 2; in addition, a second electrical connector 3 is further provided and electrically connected to the shield shell 2 and the first electrical connector 12, respectively. It will be appreciated that the first electrical connector 12 and the second electrical connector 3 have the function of being electrically conductive.
In the technical scheme of the utility model, the first electric connector 12 and the second electric connector 3 are arranged to electrically connect the shielding shell 2 with the conductive layer of the circuit board 1, so that an alternating electric field generated by a magnetic field generated by a coil panel on the shielding shell 2 is eliminated.
Referring to fig. 1 and 2, in an embodiment of the present utility model, the first electrical connector 12 is a nut, and the nut is soldered to a conductive layer on the signal circuit board 1, and the conductive layer and the reference ground of the circuit board 1 are connected together. Correspondingly, the second electrical connector 3 may be a screw, or may be conductive adhesive, and is respectively connected to the nut and the shielding shell 2.
Referring to fig. 3 and 4, in another embodiment of the present utility model, the first electrical connector 12 is solder, the second electrical connector 3 is a pin extending from the shielding shell 2 to the circuit board, the pin is inserted into a conductive layer on the circuit board 1, and the conductive layer and the circuit board 1 are electrically connected with each other by solder, and the conductive layer and the reference ground of the circuit board 1 are connected together. In addition, referring to fig. 5, the solder may be replaced by conductive adhesive to connect the conductive layer and the pins, respectively.
In other embodiments, the nut may also be welded to the shield case 2, and the screw or the conductive paste may be provided on the circuit board 1.
It should be understood that in an embodiment of the present utility model, the shielding shell 2 is provided with a through hole 21, and referring to fig. 1 and 2, the screw is connected to the nut through the through hole 21. Of course, by tightening the screws, not only the shield case 2 and the conductive layer of the circuit board 1 can be electrically connected, but also the shield case 2 and the circuit board 1 can be fixed together.
Further, in order to enhance the fixing effect, in an embodiment of the present utility model, the first electrical connector 12 includes a plurality of nuts, the second electrical connector 3 includes a plurality of screws, and the connection between the shielding shell 2 and the circuit board 1 is more stable through the fixing connection between the plurality of screws and the nuts. Of course, a plurality of through holes 21 are correspondingly provided, and the through holes 21 may be formed around the shielding shell 2 to improve stability.
In order to facilitate the ingaas photodiode 11 receiving infrared light, referring to fig. 2, 4, 5 and 8, in an embodiment of the present utility model, the shielding case 2 has an opening 22, and the light sensing surface of the ingaas photodiode 11 is disposed towards the opening 22, so as to reduce interference light entering from the side, and better receive infrared light emitted by a target.
In order to shield the electromagnetic field generated by the induction cooking appliance during operation, in one embodiment of the present utility model, the shielding shell 2 is made of metal. As a preferred embodiment, the shielding shell 2 is made of a metal material with low magnetic permeability, such as aluminum, aluminum alloy, copper alloy, etc. When the device is applied to an induction cooking appliance, the InGaAs photodiode 11 and components on the circuit board 1 are accommodated in the shell, so that an electromagnetic field generated by a coil panel of the induction cooking appliance during operation can be well shielded.
In an embodiment of the utility model, the shielding shell 2 comprises at least one housing. Please refer to fig. 2,
In fig. 6 and 8, in the present embodiment, the shielding shell 2 is made of a metal shell, and is a semi-open structure, and the shell is completely covered on one surface of the circuit board 1, and the other surface is not covered. Referring to fig. 4 and 5, if the circuit board 1 is oversized or mounted in a different manner, the housing may also cover a portion of the circuit board 1. When the shield shell 2 is constituted by a plurality of cases, the circuit board 1 may be completely enclosed; in addition, in order to save the cost, only the housing electrically connected to the circuit board 1 is made of metal, and the other housing may be made of plastic.
Further, in some embodiments of the present utility model, the shape of the shielding shell 2 is square or cylindrical. The adaptive selection can be performed according to the installation position of the infrared temperature measurement module. In this embodiment, referring to fig. 2, the shape of the shielding shell 2 is square.
In addition, referring to fig. 1 and 6, the shielding shell 2 or the circuit board 1 is further provided with a mounting hole 13, and the whole infrared temperature measurement module is mounted in the induction cooking appliance through the mounting hole 13. Of course, the opening position of the mounting hole 13 is determined according to the mounting environment, and will not be described in detail herein.
In one embodiment of the present utility model, the circuit board 1 is electrically connected to the conductive layer of the circuit board 1 with reference to the ground line, so that the alternating current generated by the magnetic field on the shielding shell 2 is dissipated to the outside.
The utility model also provides an induction cooking appliance, which comprises the infrared temperature measurement module 100A/B/C. It should be understood that the induction cooking appliance further includes a coil panel for induction heating and a control part electrically connected with the circuit board 1.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. An infrared thermometry module, comprising:
The circuit board is provided with a first electric connecting piece and is electrically connected with the conducting layer of the circuit board;
The shielding shell at least covers part of the circuit board, and the InGaAs photodiode and the first electric connector are arranged in the shielding shell; and
And the second electric connecting piece is respectively and electrically connected with the shielding shell and the first electric connecting piece.
2. The infrared temperature measurement module of claim 1, wherein the first electrical connector is a nut and the second electrical connector is a screw or conductive glue.
3. The infrared temperature measurement module of claim 2, wherein the shielding case is provided with a through hole, and the screw is connected to the nut through the through hole.
4. The infrared thermometry module of claim 2, wherein the first electrical connector comprises a plurality of nuts and the second electrical connector comprises a plurality of screws.
5. The infrared thermometry module of claim 1, wherein the shielding case has an opening, and the photosurface of the ingaas photodiode is disposed toward the opening.
6. The infrared temperature measurement module of claim 1, wherein the shielding shell is a metal material.
7. The infrared thermometry module of claim 1, wherein the shielding shell comprises at least one housing.
8. The infrared thermometry module of claim 1, wherein the shielding shell is square or cylindrical in shape.
9. The infrared temperature measurement module of claim 1, wherein the circuit board is electrically connected to the conductive layer of the circuit board with reference to ground.
10. An induction cooking appliance, characterized in that it comprises an infrared temperature measurement module according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322593130.8U CN221099887U (en) | 2023-09-25 | 2023-09-25 | Infrared temperature measurement module and induction cooking utensil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322593130.8U CN221099887U (en) | 2023-09-25 | 2023-09-25 | Infrared temperature measurement module and induction cooking utensil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221099887U true CN221099887U (en) | 2024-06-07 |
Family
ID=91316701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322593130.8U Active CN221099887U (en) | 2023-09-25 | 2023-09-25 | Infrared temperature measurement module and induction cooking utensil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221099887U (en) |
-
2023
- 2023-09-25 CN CN202322593130.8U patent/CN221099887U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9279729B2 (en) | Infrared sensor | |
| JPS6337581A (en) | Electrical connector | |
| CN221099887U (en) | Infrared temperature measurement module and induction cooking utensil | |
| CN213638363U (en) | Camera substrate assembly, camera unit, and connection structure between lens barrel base part and sensor substrate of camera unit | |
| CN103369895A (en) | Electromagnetic shielding cabinet | |
| EP0461269B1 (en) | High-frequency heating device | |
| JPH07225634A (en) | Information processor | |
| CN217980556U (en) | Infrared temperature measurement module and induction cooking utensil | |
| CA2241699C (en) | Connector with protection from radiated and conducted electromagnetic emissions | |
| KR100389005B1 (en) | Microwave Oven | |
| CN218545899U (en) | Induction cooking appliance | |
| CN220819228U (en) | Infrared temperature measurement module and induction cooking utensil | |
| CN217560803U (en) | Induction type infrared temperature measurement detector and cooking utensil | |
| CN221198680U (en) | Infrared temperature measuring device and induction cooking utensil | |
| CN221102102U (en) | InGaAs infrared detector and temperature measurement module | |
| US20020154871A1 (en) | Optical connector, shield casing, optical connector device | |
| CN214583671U (en) | Pyroelectric infrared sensor | |
| JP3131886B2 (en) | Photoelectric smoke detector | |
| CN221306133U (en) | Electromagnetic heating device with reliable temperature measurement | |
| JP2000304605A (en) | Pyroelectric infrared radiation sensor | |
| CN105387943A (en) | Pyroelectric unit detector | |
| US20020068485A1 (en) | Electronic device | |
| CN206116610U (en) | Panel antenna | |
| CN114323292A (en) | Pyroelectric infrared sensor | |
| JP5628964B1 (en) | Radar equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |