CN210691282U - Touch detection device - Google Patents
Touch detection device Download PDFInfo
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- CN210691282U CN210691282U CN201922193807.2U CN201922193807U CN210691282U CN 210691282 U CN210691282 U CN 210691282U CN 201922193807 U CN201922193807 U CN 201922193807U CN 210691282 U CN210691282 U CN 210691282U
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Abstract
The utility model provides a touch detection device, which comprises an elastic wave sensor, a circuit board, a fixed structure and a processing chip; the fixing structure is arranged on the outer side or the inner side of the circuit board and used for fixing the touch detection device at a preset position; the elastic wave sensor is welded on the outer side or the inner side of the circuit board in a machine pasting or hand welding mode and is used for receiving an elastic wave signal generated when the preset position is touched and converting the elastic wave signal into a voltage signal to be output; the processing chip is connected with the elastic wave sensor and used for obtaining the voltage signal through the elastic wave sensor and obtaining the touch condition of the preset position according to the comparison result of the voltage signal and the preset threshold value.
Description
Technical Field
The utility model relates to a touching detection area indicates a touching detection device especially.
Background
In the current society, with the development of intelligent technologies, various intelligent electronic devices gradually enter people's lives and works; the traditional intelligent equipment mainly takes information such as images and sounds as trigger signals and executes behaviors corresponding to the trigger signals; with the development of intelligent equipment, the traditional mode of using images or sounds as trigger signals cannot meet the use requirements; touch detection has become a development trend of current intelligent identification technology; the existing touch detection method mainly realizes detection through equipment such as an acceleration sensor or a gyroscope, and the scheme of executing touch detection by using an elastic wave sensor is less, and the reason is that the requirement on workers in actual use and installation of the elastic wave sensor is higher, and non-professionals cannot well install the elastic wave sensor to realize touch detection. Based on the problem, a touch detection method which is simple and convenient to install, high in applicability and high in cost performance is urgently needed in the industry.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an easy and simple to handle, can effectively just detect the touching detection device that the touching takes place.
In order to achieve the above object, the present invention provides a touch detection device, which specifically includes an elastic wave sensor, a circuit board, a fixing structure and a processing chip; the fixing structure is arranged on the outer side or the inner side of the circuit board and used for fixing the touch detection device at a preset position; the elastic wave sensor is arranged on the outer side or the inner side of the circuit board and used for receiving an elastic wave signal generated when the preset position is touched and converting the elastic wave signal into a voltage signal to be output; the processing chip is connected with the elastic wave sensor and used for obtaining the voltage signal through the elastic wave sensor and obtaining the touch condition of the preset position according to the comparison result of the voltage signal and the preset threshold value.
In the above touch detection device, preferably, the device further includes an environment detection sensor welded to an outer side or an inner side of the circuit board for collecting environment data; the environment detection sensor comprises one or more of a temperature detection sensor, a humidity detection sensor, a pressure detection sensor, an infrared detection sensor and an inertial acceleration detection sensor.
In the above touch detection device, preferably, the fixing structure includes a closed loop structure formed by at least one set of rubber strips; structural adhesive is filled in a space surrounded by the adhesive tapes in the closed loop structure, and the structural adhesive is used for adhering the touch detection device to a preset position.
In the above touch detection device, preferably, the adhesive tape includes an adhesive layer and an adhesive tape smooth layer, and a total thickness of the adhesive layer and the adhesive tape smooth layer is a thickness required for gluing of the touch detection device; the adhesive layer is used for adhering the touch detection device to a preset position; the adhesive tape smooth layer is used for protecting the adhesive layer and providing an extrusion space for the structural adhesive to be pasted when the detection device is touched.
In the above touch detection device, preferably, when the fixing structure is disposed on the circuit board and is not on the same side as the elastic wave sensor, the size of the fixing structure is the same as that of the outer frame of the circuit board; when the fixing structure is arranged on the circuit board and is positioned at the same side as the elastic wave sensor, the size of the fixing structure is consistent with that of the outer frame of the circuit board, and the fixing structure wraps the elastic wave sensor.
In the above touch detection device, preferably, the fixing structure includes at least two screw holes and a nut; the threaded hole and the nut are used for fixing the touch detection device at a preset position; or, the fixing structure comprises at least two buckling holes and a buckling component; the buckling hole and the buckling component are used for fixing the touch detection device at a preset position.
In the above touch detection device, preferably, the device further includes a package case, the package case and the circuit board constitute a sealed structure, and the package case is used for packaging the elastic wave sensor in the sealed structure; or the outer edge of the packaging shell extends out of the circuit board, the packaging shell, the circuit board and the mounting surface at the preset position form a sealing structure, and the elastic wave sensor is packaged in the sealing structure.
In the above touch detection device, preferably, when the package housing and the circuit board form a sealed structure, a sealant is filled between the package housing and the elastic wave sensor, and the sealant is used to stabilize and seal the elastic wave sensor.
In the above touch detection device, preferably, the device further includes a pressing member and a colloid; the colloid is arranged on the attaching surface of the circuit board; the packaging shell and the corresponding positions on the circuit board are respectively preset with through holes, and the extrusion component penetrates through the through holes, the packaging shell and the circuit board are connected with the colloid and is used for extruding the colloid to enable the circuit board to be pasted to a preset position.
In the above touch detection device, preferably, the device further includes a capsule and a conduction groove; a colloid with a preset volume is stored in the capsule; the conduction groove penetrates through the circuit board to be connected with the capsule storage, and is used for conducting the colloid to the attaching surface of the circuit board in the process of externally extruding the capsule storage.
In the above touch detection device, preferably, the device further includes a package housing and a pressing member, the package housing and the circuit board form a sealing structure for packaging the elastic wave sensor and the reservoir capsule in the sealing structure, or an outer edge of the package housing extends out of the circuit board, the package housing, the circuit board and a mounting surface at a predetermined position form a sealing structure for packaging the elastic wave sensor in the sealing structure; the packaging shell is provided with a through hole corresponding to the capsule storage, and the extrusion component penetrates through the packaging shell through the through hole to be connected with the capsule storage and is used for extruding the capsule storage to enable the colloid in the capsule storage to be communicated with the pasting surface of the circuit board.
The utility model provides a touching detection device simple installation, it is lower to the installation technology requirement, several factors of the volume production of not being convenient for that have avoided the higher volume production that leads to of elastic wave sensor installation requirement, overcome that the temperature soldering tin etc. that the sensor is breakable, the direct bonding wire of sensor brought influence, paste the influence of the glue coating volume of sensor and the inconsistency of position to the signal conduction of sensor, easily receive external environment and disturb the scheduling problem.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a schematic structural diagram of a touch detection device according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating a result of the fixing structure according to an embodiment of the present invention;
fig. 3 is a side view of a touch detection device according to an embodiment of the present invention;
fig. 4 is a side view of an installation structure of a touch detection device according to an embodiment of the present invention;
fig. 5 is a side view of a finished product of a touch detection device according to an embodiment of the present invention;
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
In the description herein, reference to the term "an embodiment," "a particular embodiment," "for example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. The sequence of steps involved in the embodiments is for illustrative purposes to illustrate the implementation of the present application, and the sequence of steps is not limited and can be adjusted as needed.
Referring to fig. 1, the touch detection device provided by the present invention specifically includes an elastic wave sensor 103, a circuit board 101, a fixing structure and a processing chip; the fixing structure is arranged on the outer side or the inner side of the circuit board 101 and used for fixing the touch detection device at a preset position; the elastic wave sensor 103 is welded on the outer side or the inner side of the circuit board 101 and is used for receiving an elastic wave signal generated when the preset position is touched and converting the elastic wave signal into a voltage signal for outputting; the processing chip is connected with the elastic wave sensor 103 and is used for obtaining the voltage signal through the elastic wave sensor 103 and obtaining the touch condition of the preset position according to the comparison result of the voltage signal and the preset threshold value. The elastic wave sensor includes, but is not limited to, a piezoelectric sensor, a strain sensor, etc., and the piezoelectric sensor may include a piezoelectric ceramic sensor, a piezoelectric thin film sensor, a piezoelectric crystal sensor, or other sensors having piezoelectric effect. The processing chip can be an stm32 series chip of an ARM core; in actual operation, the processing circuit may be configured as another chip or integrated in a processor of the smart device using the touch detection device according to different use positions and requirements; the circuit board comprises a FR4 circuit board or a flexible FPC board and a rigid circuit board material such as a back strength board. In the above embodiment, the processing chip may compare the voltage signal by using a prior art, for example, by using a mapping table, compare the voltage signal with each value in a preset mapping table, and determine a corresponding touch result according to the comparison result, thereby obtaining the current touch condition. Of course, there are other comparison and determination methods in actual work, and based on the principle that there is linear correlation between the voltage signal and the touch condition, the related technical personnel in the field can set the voltage signal in different ways, and the present invention does not make much limitation here.
In the above embodiment, the touch detection device may include a plurality of elastic wave sensors, and the plurality of elastic wave sensors are all soldered on the circuit board by machine bonding or hand soldering. The touch detection device can also comprise a packaging shell 102, the packaging shell 102 can be connected with the circuit board in a welding, adhesion and other modes in structure, and other sealing connection modes can be adopted in actual work, so that the utility model is not limited too much; the packaging shell can be made of PC, ABS, nylon, POM and other plastics or aluminum, stainless steel and other alloy materials so as to further protect the elastic wave sensor and avoid the influence of unnecessary interference on the touch detection device; or the outer edge of the packaging shell extends out of the circuit board, the packaging shell, the circuit board and the mounting surface at the preset position form a sealing structure, and the elastic wave sensor is packaged in the sealing structure; in practical applications, those skilled in the art can select the setting according to actual needs, and the present invention is not further limited thereto.
In the above embodiment, the elastic wave sensor 103 is soldered on the outer side or the inner side of the circuit board 101 by machine-bonding or hand-soldering, which can effectively avoid the effect of inconsistency in the performance of the sensor caused by inconsistency between the time and temperature of soldering and the amount of soldering tin used for soldering when the wire is directly soldered on the sensor in the conventional manner; the touch detection device is more suitable for non-professionals. Meanwhile, the packaging shell can effectively shield interference signals such as electricity, electromagnetism and ESD from crosstalk to the sensor; meanwhile, the touch detection device has the effects of water resistance, dust resistance and the like; the elastic wave sensor is reinforced, the fragile characteristic of the elastic wave sensor is avoided, and the sensor is more convenient to operate; with this, through the structure, make the utility model provides a touch detection device can set up on the equipment that needs detected the touching by simple and easy mode, when the touching takes place, based on the elastic wave signal that the elastic wave sensor detected the acquisition accurately learns the touching condition to accomplish touching discernment, applicable in fields such as intelligent house, intelligent driving, robotic device, intelligent wearing equipment.
Referring to fig. 3, in an embodiment of the present invention, the circuit board 301 and the package housing 302 form a closed space, the elastic wave sensor 303 is disposed in the closed space, the fixing structure may include a closed loop structure formed by at least one set of adhesive tapes, a space 306 surrounded by the adhesive tapes of the closed loop structure is filled with a structural adhesive, and the structural adhesive is used for adhering the touch detection device to a predetermined position; the adhesive tape comprises an adhesive layer 304 and an adhesive tape smooth layer 305, and the total thickness of the adhesive layer 304 and the adhesive tape smooth layer 305 is the thickness required by the gluing of the touch detection device; the adhesive layer is used for adhering the touch detection device to a preset position; the adhesive tape smooth layer 305 is used for protecting the adhesive layer and providing an extrusion space for the structural adhesive to be pasted when the detection device is touched. In actual work, the closed loop structure is formed by one or a combination of a plurality of adhesive tapes in a circular shape, a rectangular shape, a triangular shape and a trapezoidal shape; the utility model can be used by the people skilled in the art according to the actual need, and the utility model is not limited herein; through the adhesive tape structure, when the touch detection device is pasted, the specific pasting process can be operated as follows, the structural adhesive is coated in the closed-loop structure 306, the structural adhesive is uniformly brushed and leveled to be flush with the adhesive tape smooth layer 305, then the adhesive tape smooth layer 305 is torn off, the structural adhesive layer is higher than the adhesive tape layer by the adhesive tape smooth layer thickness, the structural adhesive layer has an extrusion space, and then the touch detection device is pressed at the target pasting position; the structure and the method ensure the standardization and consistency of the gluing method, namely the gluing step and the glue brushing step, and simultaneously ensure the consistency of the gluing amount, namely, the sensitivity of the elastic wave sensor to signal conduction is higher, and the structural glue is an intermediate medium for signal conduction, so the consistency of the gluing amount is particularly important for the response of the sensor signal, and the structure and the method ensure the working stability of the elastic wave sensor by utilizing the consistency of the gluing amount.
It should be noted that, in the above embodiment, when the fixing structure is disposed on the circuit board and not on the same side as the elastic wave sensor, the size of the fixing structure is the same as that of the circuit board outer frame; when the fixing structure is arranged on the circuit board and is positioned at the same side as the elastic wave sensor, the size of the fixing structure is consistent with that of the outer frame of the circuit board, and the fixing structure wraps the elastic wave sensor. Therefore, the touch detection device is integrally designed, and is convenient to use, transport and install subsequently. In actual work, in order to realize module integration and multiple functions, the touch detection device can further comprise other data acquisition sensors besides the elastic wave sensor; that is, the device may further include an environment detection sensor, which is welded on the inner side of the circuit board by machine bonding or hand welding for collecting environment data; the environment detection sensor comprises one or more of a temperature detection sensor, a humidity detection sensor, a pressure detection sensor, an infrared detection sensor and an inertial acceleration detection sensor. These some environment detection sensor can set up in the encapsulation casing like pressure sensor, also can adopt other modes to integrate on the device, the utility model discloses no longer explain one by one here, relevant technical personnel in the field can select to set up according to actual need.
Referring to fig. 3 again, in an embodiment of the present invention, when the package housing and the circuit board form a sealing structure, a sealant is filled between the package housing 302 and the elastic wave sensor 303, and the sealant is used for stabilizing and sealing the elastic wave sensor; the sealing glue comprises sealing glue such as black glue. As can be seen from the figure, in the present embodiment, the black glue is used to fill the space formed by the package housing 302 and the circuit board, so as to limit the moving range of the elastic wave sensor 303, and prevent the touch detection device from shaking or the like when a touch occurs; in actual work, of course, those skilled in the art can select other ways to limit the elastic wave sensor to shake according to actual needs, and the present invention is not limited herein.
To better stabilize the touch detection device, please refer to fig. 2, in an embodiment of the present invention, the fixing structure includes at least two threaded holes 203 and a nut; the threaded hole 203 and the nut are used for fixing the touch detection device at a preset position. Similarly, in practical operation, the fixing structure may also include at least two fastening holes and fastening components; the buckling hole and the buckling component are used for fixing the touch detection device at a preset position. Therefore, a user can perform touch detection only by fixing the touch detection device to the area to be detected through the fixing structure, complex operations such as welding are not needed, and the use mode is very simple and convenient; naturally, the fixing manner is various, for example, the adhesive tape 202 is enclosed to form the enclosed space 201, and the structural adhesive is injected into the enclosed space 201, so that the touch detection device is fixed by the structural adhesive and the adhesive tape in an auxiliary manner; the person skilled in the art can also select other fixing methods to fix the touch detection device according to actual needs, and the present invention is not limited herein.
Referring to fig. 4, in an embodiment of the present invention, a capsule 308 and a conducting groove 309 are further provided; a colloid with a preset volume is stored in the capsule 308; the conduction groove 309 penetrates through the circuit board to be connected with the capsule 308, and is used for conducting the colloid to the attaching surface of the circuit board in the process of externally extruding the capsule; further, the device can also comprise a packaging shell and a pressing member, wherein the packaging shell and the circuit board form a sealing structure for packaging the elastic wave sensor and the capsule in the sealing structure; the packaging shell is provided with a through hole corresponding to the capsule storage, and the extrusion component penetrates through the packaging shell through the through hole to be connected with the capsule storage and is used for extruding the capsule storage to enable the colloid in the capsule storage to be communicated with the pasting surface of the circuit board. Therefore, the packaging shell can protect the elastic wave sensor and also provide a supporting function for the extrusion component; wherein, the extrusion component can be the crowded gluey structure of screw, specifically contains: a through hole is arranged on the shielding cover 302, namely the shell of the packaging shell, and is used for providing a through hole for the rotation insertion of a screw 307; in the internal space formed by the circuit board 301 and the shielding case 302, a capsule 308 is disposed at a corresponding position of the screw 307 after the screw 307 is rotatably inserted into the shielding case 302, a colloid with a preset volume is stored in the capsule 308, the capsule 308 is provided with a conduction groove 309, the conduction groove 309 can lead a colloid end in the capsule 308 into the gluing space 306 through the circuit board 301 via a through hole, and when the screw 307 is continuously rotated and presses the capsule 308 after being rotatably inserted into the shielding case 302, the colloid in the capsule 308 can enter the gluing space 306 through the conduction groove 309; certainly, in actual work, the conduction groove is not arranged, and the effect of the conduction groove is realized only through the through hole on the circuit board; the gluing space 306 is formed by a gluing surface 305, a touch detection device surface, a gluing layer 304 and a circuit board 301 in a surrounding manner; therefore, the rotation scale of the screw 307 is used for controlling the glue discharging amount, so that the consistency of the glue amount in actual work is ensured, in addition, on-site gluing is avoided, and the production efficiency is improved. In this embodiment, pressure sensor 303 can set up in the inner space to the mode of pasting or hand welding is fixed, and in the actual working, the staff can select concrete fixed mode according to actual need, the utility model discloses do not further limit here. When the glue spreading surface 30 is torn off, the sensor module is tightly attached to the position to be pasted, the screw 307 is rotated according to a certain stroke, pre-stored glue in the glue storage capsule 308 is extruded, after the glue storage capsule 308 is extruded, glue is extruded to the glue spreading space 306 through the conduction groove 309, the glue extruding amount is controlled through the screw stroke, the consistency of the glue amount is ensured, in addition, on-site glue spreading is avoided, and the production efficiency is improved.
As shown in fig. 5, in an embodiment of the present invention, the pressing member may only include an extruding member and a glue body; the colloid is arranged on the attaching surface of the circuit board; through holes are respectively preset in corresponding positions on the packaging shell and the circuit board, and the extrusion component penetrates through the packaging shell and the circuit board through the through holes to be connected with the colloid and is used for extruding the colloid to enable the circuit board to be pasted to a preset position; the colloid can be fragile colloid or colloid wrapped by fragile structures such as films and the like, the colloid is arranged in the gluing space 306, then the touch detection device is tightly attached to the pasting position, the screw 307 is rotated according to a certain stroke, namely, the pressing member is extruded, the fragile colloid is broken, and the preset fragile colloid in the gluing space 306 is pasted to a target area; therefore, the glue amount is preset in advance, on-site gluing is avoided, and the production efficiency in actual work is improved.
The utility model provides a touching detection device simple installation, it is lower to the installation technology requirement, several factors of the volume production of not being convenient for that have avoided the higher volume production that leads to of elastic wave sensor installation requirement, overcome that the temperature soldering tin etc. that the sensor is breakable, the direct bonding wire of sensor brought influence, paste the influence of the glue coating volume of sensor and the inconsistency of position to the signal conduction of sensor, easily receive external environment and disturb the scheduling problem.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (11)
1. A touch detection device is characterized by comprising an elastic wave sensor, a circuit board, a fixed structure and a processing chip;
the fixing structure is arranged on the outer side or the inner side of the circuit board and used for fixing the touch detection device at a preset position;
the elastic wave sensor is arranged on the outer side or the inner side of the circuit board and used for receiving an elastic wave signal generated when the preset position is touched and converting the elastic wave signal into a voltage signal to be output;
the processing chip is connected with the elastic wave sensor and used for obtaining the voltage signal through the elastic wave sensor and obtaining the touch condition of the preset position according to the comparison result of the voltage signal and the preset threshold value.
2. The touch sensing device of claim 1, further comprising an environmental sensor soldered to the outside or inside of the circuit board for collecting environmental data; the environment detection sensor comprises one or more of a temperature detection sensor, a humidity detection sensor, a pressure detection sensor, an infrared detection sensor and an inertial acceleration detection sensor.
3. The touch detection device of claim 1, wherein the fixed structure comprises a closed loop structure formed by at least one set of adhesive strips; structural adhesive is filled in a space surrounded by the adhesive tapes in the closed loop structure, and the structural adhesive is used for adhering the touch detection device to a preset position.
4. The touch detection device of claim 3, wherein the adhesive tape comprises an adhesive layer and an adhesive tape smooth layer, and the total thickness of the adhesive layer and the adhesive tape smooth layer is the thickness required for gluing the touch detection device;
the adhesive layer is used for adhering the touch detection device to a preset position;
the adhesive tape smooth layer is used for protecting the adhesive layer and providing an extrusion space for the structural adhesive to be pasted when the detection device is touched.
5. The touch sensing device of claim 3, wherein when the fixing structure is disposed on a circuit board and not on the same side as the elastic wave sensor, the size of the fixing structure is the same as that of the circuit board frame; when the fixing structure is arranged on the circuit board and is positioned at the same side as the elastic wave sensor, the size of the fixing structure is consistent with that of the outer frame of the circuit board, and the fixing structure wraps the elastic wave sensor.
6. The touch detection device of claim 1, wherein the securing structure comprises at least two threaded holes and a nut; the threaded hole and the nut are used for fixing the touch detection device at a preset position; or, the fixing structure comprises at least two buckling holes and a buckling component; the buckling hole and the buckling component are used for fixing the touch detection device at a preset position.
7. The touch sensing device of claim 1, further comprising an encapsulating housing, the encapsulating housing and the circuit board forming an encapsulating structure for encapsulating the elastic wave sensor in the encapsulating structure; or the outer edge of the packaging shell extends out of the circuit board, the packaging shell, the circuit board and the mounting surface at the preset position form a sealing structure, and the elastic wave sensor is packaged in the sealing structure.
8. The touch sensing device of claim 7, wherein when the package housing and the circuit board form a sealed structure, an adhesive is filled between the package housing and the elastic wave sensor, and the adhesive is used for stabilizing and sealing the elastic wave sensor.
9. The touch sensing device of claim 8, further comprising a pressing member and a gel; the colloid is arranged on the attaching surface of the circuit board; the packaging shell and the corresponding positions on the circuit board are respectively preset with through holes, and the extrusion component penetrates through the through holes, the packaging shell and the circuit board are connected with the colloid and is used for extruding the colloid to enable the circuit board to be pasted to a preset position.
10. The touch detection device of claim 1, further comprising a reservoir and a conduction channel; a colloid with a preset volume is stored in the capsule; the conduction groove penetrates through the circuit board to be connected with the capsule storage, and is used for conducting the colloid to the attaching surface of the circuit board in the process of externally extruding the capsule storage.
11. The touch detection device according to claim 10, further comprising a package housing and a pressing member, the package housing and the circuit board constituting a sealing structure for packaging the elastic wave sensor and the reservoir capsule in the sealing structure, or the package housing having an outer edge extending beyond the circuit board, the package housing, the circuit board and a mounting surface at a predetermined position constituting a sealing structure for packaging the elastic wave sensor in the sealing structure; the packaging shell is provided with a through hole corresponding to the capsule storage, and the extrusion component penetrates through the packaging shell through the through hole to be connected with the capsule storage and is used for extruding the capsule storage to enable the colloid in the capsule storage to be communicated with the pasting surface of the circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922193807.2U CN210691282U (en) | 2019-12-09 | 2019-12-09 | Touch detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922193807.2U CN210691282U (en) | 2019-12-09 | 2019-12-09 | Touch detection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112503818A (en) * | 2020-11-18 | 2021-03-16 | 深圳Tcl新技术有限公司 | Refrigerator and door opening method thereof, and computer storage medium |
| WO2022257030A1 (en) * | 2021-06-08 | 2022-12-15 | 广州创知科技有限公司 | Touch data processing method, and interactive flat panel |
-
2019
- 2019-12-09 CN CN201922193807.2U patent/CN210691282U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112503818A (en) * | 2020-11-18 | 2021-03-16 | 深圳Tcl新技术有限公司 | Refrigerator and door opening method thereof, and computer storage medium |
| CN112503818B (en) * | 2020-11-18 | 2023-10-13 | 深圳Tcl新技术有限公司 | Refrigerator, door opening method thereof and computer storage medium |
| WO2022257030A1 (en) * | 2021-06-08 | 2022-12-15 | 广州创知科技有限公司 | Touch data processing method, and interactive flat panel |
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